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winebus.sys: Add missing keyboard free_device callback.
[wine.git] / dlls / comctl32 / treeview.c
blobf4a387dd0d24c1d5b68596f007976832876b09c8
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO
33 *
34 * missing styles: TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include <assert.h>
44 #include <ctype.h>
45 #include <stdarg.h>
46 #include <string.h>
47 #include <limits.h>
48 #include <stdlib.h>
49
50 #define NONAMELESSUNION
51
52 #include "windef.h"
53 #include "winbase.h"
54 #include "wingdi.h"
55 #include "winuser.h"
56 #include "winnls.h"
57 #include "commctrl.h"
58 #include "comctl32.h"
59 #include "uxtheme.h"
60 #include "vssym32.h"
61 #include "wine/debug.h"
62 #include "wine/exception.h"
63 #include "wine/heap.h"
64
65 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
66
67 /* internal structures */
68 typedef struct tagTREEVIEW_INFO
69 {
70 HWND hwnd;
71 HWND hwndNotify; /* Owner window to send notifications to */
72 DWORD dwStyle;
73 HTREEITEM root;
74 UINT uInternalStatus;
75 INT Timer;
76 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
77 INT cdmode; /* last custom draw setting */
78 UINT uScrollTime; /* max. time for scrolling in milliseconds */
79 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
80
81 UINT uItemHeight; /* item height */
82 BOOL bHeightSet;
83
84 LONG clientWidth; /* width of control window */
85 LONG clientHeight; /* height of control window */
86
87 LONG treeWidth; /* width of visible tree items */
88 LONG treeHeight; /* height of visible tree items */
89
90 UINT uIndent; /* indentation in pixels */
91 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
92 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
93 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
94 HTREEITEM editItem; /* item being edited with builtin edit box */
95
96 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
97 LONG maxVisibleOrder;
98 HTREEITEM dropItem; /* handle to item selected by drag cursor */
99 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
100 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
101 HIMAGELIST dragList; /* Bitmap of dragged item */
102 LONG scrollX;
103 INT wheelRemainder;
104 COLORREF clrBk;
105 COLORREF clrText;
106 COLORREF clrLine;
107 COLORREF clrInsertMark;
108 HFONT hFont;
109 HFONT hDefaultFont;
110 HFONT hBoldFont;
111 HFONT hUnderlineFont;
112 HFONT hBoldUnderlineFont;
113 HCURSOR hcurHand;
114 HWND hwndToolTip;
115
116 HWND hwndEdit;
117 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
118 BOOL bIgnoreEditKillFocus;
119 BOOL bLabelChanged;
120
121 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
122 HIMAGELIST himlNormal;
123 int normalImageHeight;
124 int normalImageWidth;
125 HIMAGELIST himlState;
126 int stateImageHeight;
127 int stateImageWidth;
128 HDPA items;
129
130 DWORD lastKeyPressTimestamp;
131 WPARAM charCode;
132 INT nSearchParamLength;
133 WCHAR szSearchParam[ MAX_PATH ];
134 } TREEVIEW_INFO;
135
136 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
137 {
138 HTREEITEM parent; /* handle to parent or 0 if at root */
139 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
140 HTREEITEM firstChild; /* handle to first child or 0 if no child */
141
142 UINT callbackMask;
143 UINT state;
144 UINT stateMask;
145 LPWSTR pszText;
146 int cchTextMax;
147 int iImage;
148 int iSelectedImage;
149 int iExpandedImage;
150 int cChildren;
151 LPARAM lParam;
152 int iIntegral; /* item height multiplier (1 is normal) */
153 int iLevel; /* indentation level:0=root level */
154 HTREEITEM lastChild;
155 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
156 RECT rect;
157 LONG linesOffset;
158 LONG stateOffset;
159 LONG imageOffset;
160 LONG textOffset;
161 LONG textWidth; /* horizontal text extent for pszText */
162 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
163 corresponding to a top-to-bottom ordering in the tree view.
164 Each item takes up "item.iIntegral" spots in the visible order.
165 0 is the root's first child. */
166 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
167 } TREEVIEW_ITEM;
168
169 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
170 #define KEY_DELAY 450
171
172 /* bitflags for infoPtr->uInternalStatus */
173
174 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
175 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
176 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
177 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
178 #define TV_RDRAG 0x10 /* ditto Rbutton */
179 #define TV_RDRAGGING 0x20
180
181 /* bitflags for infoPtr->timer */
182
183 #define TV_EDIT_TIMER 2
184 #define TV_EDIT_TIMER_SET 2
185
186 #define TEXT_CALLBACK_SIZE 260
187
188 #define TREEVIEW_LEFT_MARGIN 8
189
190 #define MINIMUM_INDENT 19
191
192 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
193
194 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
195 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
196 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
197
198 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
199 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
200 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
201 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
202
203 static const WCHAR themeClass[] = L"Treeview";
204
205
206 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
207
208
209 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
210
211 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
212 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
213 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
214 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
215 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
216 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
217
218 /* Random Utilities *****************************************************/
219 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
220
221 /* Returns the treeview private data if hwnd is a treeview.
222 * Otherwise returns an undefined value. */
223 static inline TREEVIEW_INFO *
224 TREEVIEW_GetInfoPtr(HWND hwnd)
225 {
226 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
227 }
228
229 /* Don't call this. Nothing wants an item index. */
230 static inline int
231 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
232 {
233 return DPA_GetPtrIndex(infoPtr->items, handle);
234 }
235
236 /* Checks if item has changed and needs to be redrawn */
237 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
238 const TVITEMEXW *tvChange)
239 {
240 /* Number of children has changed */
241 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
242 return TRUE;
243
244 /* Image has changed and it's not a callback */
245 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
246 tiNew->iImage != I_IMAGECALLBACK)
247 return TRUE;
248
249 /* Selected image has changed and it's not a callback */
250 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
251 tiNew->iSelectedImage != I_IMAGECALLBACK)
252 return TRUE;
253
254 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
255 tiNew->iExpandedImage != I_IMAGECALLBACK)
256 return TRUE;
257
258 /* Text has changed and it's not a callback */
259 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
260 tiNew->pszText != LPSTR_TEXTCALLBACKW)
261 return TRUE;
262
263 /* Indent has changed */
264 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
265 return TRUE;
266
267 /* Item state has changed */
268 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
269 return TRUE;
270
271 return FALSE;
272 }
273
274 /***************************************************************************
275 * This method checks that handle is an item for this tree.
276 */
277 static BOOL
278 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
279 {
280 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
281 {
282 TRACE("invalid item %p\n", handle);
283 return FALSE;
284 }
285 else
286 return TRUE;
287 }
288
289 static HFONT
290 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
291 {
292 LOGFONTW font;
293
294 GetObjectW(hOrigFont, sizeof(font), &font);
295 font.lfWeight = FW_BOLD;
296 return CreateFontIndirectW(&font);
297 }
298
299 static HFONT
300 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
301 {
302 LOGFONTW font;
303
304 GetObjectW(hOrigFont, sizeof(font), &font);
305 font.lfUnderline = TRUE;
306 return CreateFontIndirectW(&font);
307 }
308
309 static HFONT
310 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
311 {
312 LOGFONTW font;
313
314 GetObjectW(hfont, sizeof(font), &font);
315 font.lfWeight = FW_BOLD;
316 font.lfUnderline = TRUE;
317 return CreateFontIndirectW(&font);
318 }
319
320 static inline HFONT
321 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
322 {
323 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
324 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
325 if (item->state & TVIS_BOLD)
326 return infoPtr->hBoldFont;
327 return infoPtr->hFont;
328 }
329
330 /* for trace/debugging purposes only */
331 static const char *
332 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
333 {
334 if (item == NULL) return "<null item>";
335 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
336 if (item->pszText == NULL) return "<null>";
337 return debugstr_w(item->pszText);
338 }
339
340 /* An item is not a child of itself. */
341 static BOOL
342 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
343 {
344 do
345 {
346 child = child->parent;
347 if (child == parent) return TRUE;
348 } while (child != NULL);
349
350 return FALSE;
351 }
352
353 static BOOL
354 TREEVIEW_IsFullRowSelect(const TREEVIEW_INFO *infoPtr)
355 {
356 return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);
357 }
358
359 static BOOL
360 TREEVIEW_IsItemHit(const TREEVIEW_INFO *infoPtr, const TVHITTESTINFO *ht)
361 {
362 if (TREEVIEW_IsFullRowSelect(infoPtr))
363 return ht->flags & (TVHT_ONITEMINDENT | TVHT_ONITEMBUTTON | TVHT_ONITEM | TVHT_ONITEMRIGHT);
364 else
365 return ht->flags & TVHT_ONITEM;
366 }
367
368 /* Tree Traversal *******************************************************/
369
370 /***************************************************************************
371 * This method returns the last expanded sibling or child child item
372 * of a tree node
373 */
374 static TREEVIEW_ITEM *
375 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
376 {
377 if (!item) return NULL;
378
379 while (item->lastChild)
380 {
381 if (item->state & TVIS_EXPANDED)
382 item = item->lastChild;
383 else
384 break;
385 }
386
387 if (item == infoPtr->root)
388 return NULL;
389
390 return item;
391 }
392
393 /***************************************************************************
394 * This method returns the previous non-hidden item in the list not
395 * considering the tree hierarchy.
396 */
397 static TREEVIEW_ITEM *
398 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
399 {
400 if (tvItem->prevSibling)
401 {
402 /* This item has a prevSibling, get the last item in the sibling's tree. */
403 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
404
405 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
406 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
407 else
408 return upItem;
409 }
410 else
411 {
412 /* this item does not have a prevSibling, get the parent */
413 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
414 }
415 }
416
417
418 /***************************************************************************
419 * This method returns the next physical item in the treeview not
420 * considering the tree hierarchy.
421 */
422 static TREEVIEW_ITEM *
423 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
424 {
425 /*
426 * If this item has children and is expanded, return the first child
427 */
428 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
429 {
430 return tvItem->firstChild;
431 }
432
433
434 /*
435 * try to get the sibling
436 */
437 if (tvItem->nextSibling)
438 return tvItem->nextSibling;
439
440 /*
441 * Otherwise, get the parent's sibling.
442 */
443 while (tvItem->parent)
444 {
445 tvItem = tvItem->parent;
446
447 if (tvItem->nextSibling)
448 return tvItem->nextSibling;
449 }
450
451 return NULL;
452 }
453
454 /***************************************************************************
455 * This method returns the nth item starting at the given item. It returns
456 * the last item (or first) we we run out of items.
457 *
458 * Will scroll backward if count is <0.
459 * forward if count is >0.
460 */
461 static TREEVIEW_ITEM *
462 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
463 LONG count)
464 {
465 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
466 TREEVIEW_ITEM *previousItem;
467
468 assert(item != NULL);
469
470 if (count > 0)
471 {
472 next_item = TREEVIEW_GetNextListItem;
473 }
474 else if (count < 0)
475 {
476 count = -count;
477 next_item = TREEVIEW_GetPrevListItem;
478 }
479 else
480 return item;
481
482 do
483 {
484 previousItem = item;
485 item = next_item(infoPtr, item);
486
487 } while (--count && item != NULL);
488
489
490 return item ? item : previousItem;
491 }
492
493 /* Notifications ************************************************************/
494
495 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
496 {
497 if (!infoPtr->bNtfUnicode) {
498 switch (code) {
499 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
500 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
501 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
502 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
503 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
504 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
505 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
506 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
507 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
508 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
509 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
510 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
511 }
512 }
513 return code;
514 }
515
516 static inline BOOL
517 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
518 {
519 TRACE("code=%d, hdr=%p\n", code, hdr);
520
521 hdr->hwndFrom = infoPtr->hwnd;
522 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
523 hdr->code = get_notifycode(infoPtr, code);
524
525 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
526 }
527
528 static BOOL
529 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
530 {
531 NMHDR hdr;
532 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
533 }
534
535 static VOID
536 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
537 {
538 tvItem->mask = mask;
539 tvItem->hItem = item;
540 tvItem->state = item->state;
541 tvItem->stateMask = 0;
542 tvItem->iImage = item->iImage;
543 tvItem->iSelectedImage = item->iSelectedImage;
544 tvItem->cChildren = item->cChildren;
545 tvItem->lParam = item->lParam;
546
547 if(mask & TVIF_TEXT)
548 {
549 if (!infoPtr->bNtfUnicode)
550 {
551 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
552 tvItem->pszText = heap_alloc (tvItem->cchTextMax);
553 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
554 }
555 else
556 {
557 tvItem->cchTextMax = item->cchTextMax;
558 tvItem->pszText = item->pszText;
559 }
560 }
561 else
562 {
563 tvItem->cchTextMax = 0;
564 tvItem->pszText = NULL;
565 }
566 }
567
568 static BOOL
569 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
570 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
571 {
572 NMTREEVIEWW nmhdr;
573 BOOL ret;
574
575 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
576 code, action, oldItem, newItem);
577
578 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
579 nmhdr.action = action;
580
581 if (oldItem)
582 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
583
584 if (newItem)
585 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
586
587 nmhdr.ptDrag.x = 0;
588 nmhdr.ptDrag.y = 0;
589
590 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
591 if (!infoPtr->bNtfUnicode)
592 {
593 heap_free(nmhdr.itemOld.pszText);
594 heap_free(nmhdr.itemNew.pszText);
595 }
596 return ret;
597 }
598
599 static BOOL
600 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
601 HTREEITEM dragItem, POINT pt)
602 {
603 NMTREEVIEWW nmhdr;
604
605 TRACE("code:%d dragitem:%p\n", code, dragItem);
606
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
617 }
618
619
620 static BOOL
621 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
622 HDC hdc, RECT rc)
623 {
624 NMTVCUSTOMDRAW nmcdhdr;
625 NMCUSTOMDRAW *nmcd;
626
627 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
628
629 nmcd = &nmcdhdr.nmcd;
630 nmcd->dwDrawStage = dwDrawStage;
631 nmcd->hdc = hdc;
632 nmcd->rc = rc;
633 nmcd->dwItemSpec = 0;
634 nmcd->uItemState = 0;
635 nmcd->lItemlParam = 0;
636 nmcdhdr.clrText = infoPtr->clrText;
637 nmcdhdr.clrTextBk = infoPtr->clrBk;
638 nmcdhdr.iLevel = 0;
639
640 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
641 }
642
643 /* FIXME: need to find out when the flags in uItemState need to be set */
644
645 static BOOL
646 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
647 TREEVIEW_ITEM *item, UINT uItemDrawState,
648 NMTVCUSTOMDRAW *nmcdhdr)
649 {
650 NMCUSTOMDRAW *nmcd;
651 DWORD dwDrawStage;
652 DWORD_PTR dwItemSpec;
653 UINT uItemState;
654
655 dwDrawStage = CDDS_ITEM | uItemDrawState;
656 dwItemSpec = (DWORD_PTR)item;
657 uItemState = 0;
658 if (item->state & TVIS_SELECTED)
659 uItemState |= CDIS_SELECTED;
660 if (item == infoPtr->selectedItem)
661 uItemState |= CDIS_FOCUS;
662 if (item == infoPtr->hotItem)
663 uItemState |= CDIS_HOT;
664
665 nmcd = &nmcdhdr->nmcd;
666 nmcd->dwDrawStage = dwDrawStage;
667 nmcd->hdc = hdc;
668 nmcd->rc = item->rect;
669 nmcd->dwItemSpec = dwItemSpec;
670 nmcd->uItemState = uItemState;
671 nmcd->lItemlParam = item->lParam;
672 nmcdhdr->iLevel = item->iLevel;
673
674 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
675 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
676 nmcd->uItemState, nmcd->lItemlParam);
677
678 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
679 }
680
681 static BOOL
682 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
683 {
684 NMTVDISPINFOW tvdi;
685 BOOL ret;
686
687 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
688 &tvdi.item, editItem);
689
690 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
691
692 if (!infoPtr->bNtfUnicode)
693 heap_free(tvdi.item.pszText);
694
695 return ret;
696 }
697
698 static void
699 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
700 UINT mask)
701 {
702 NMTVDISPINFOEXW callback;
703
704 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
705 mask &= item->callbackMask;
706
707 if (mask == 0) return;
708
709 /* 'state' always contains valid value, as well as 'lParam'.
710 * All other parameters are uninitialized.
711 */
712 callback.item.pszText = item->pszText;
713 callback.item.cchTextMax = item->cchTextMax;
714 callback.item.mask = mask;
715 callback.item.hItem = item;
716 callback.item.state = item->state;
717 callback.item.lParam = item->lParam;
718
719 /* If text is changed we need to recalculate textWidth */
720 if (mask & TVIF_TEXT)
721 item->textWidth = 0;
722
723 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
724 TRACE("resulting code 0x%08x\n", callback.hdr.code);
725
726 /* It may have changed due to a call to SetItem. */
727 mask &= item->callbackMask;
728
729 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
730 {
731 /* Instead of copying text into our buffer user specified his own */
732 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
733 LPWSTR newText;
734 int buflen;
735 int len = MultiByteToWideChar( CP_ACP, 0,
736 (LPSTR)callback.item.pszText, -1,
737 NULL, 0);
738 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
739 newText = heap_realloc(item->pszText, buflen);
740
741 TRACE("returned str %s, len=%d, buflen=%d\n",
742 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
743
744 if (newText)
745 {
746 item->pszText = newText;
747 MultiByteToWideChar( CP_ACP, 0,
748 (LPSTR)callback.item.pszText, -1,
749 item->pszText, buflen/sizeof(WCHAR));
750 item->cchTextMax = buflen/sizeof(WCHAR);
751 }
752 /* If realloc fails we have nothing to do, but keep original text */
753 }
754 else {
755 int len = max(lstrlenW(callback.item.pszText) + 1,
756 TEXT_CALLBACK_SIZE);
757 LPWSTR newText = heap_realloc(item->pszText, len*sizeof(WCHAR));
758
759 TRACE("returned wstr %s, len=%d\n",
760 debugstr_w(callback.item.pszText), len);
761
762 if (newText)
763 {
764 item->pszText = newText;
765 lstrcpyW(item->pszText, callback.item.pszText);
766 item->cchTextMax = len;
767 }
768 /* If realloc fails we have nothing to do, but keep original text */
769 }
770 }
771 else if (mask & TVIF_TEXT) {
772 /* User put text into our buffer, that is ok unless A string */
773 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
774 LPWSTR newText;
775 int buflen;
776 int len = MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 NULL, 0);
779 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
780 newText = heap_alloc(buflen);
781
782 TRACE("same buffer str %s, len=%d, buflen=%d\n",
783 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
784
785 if (newText)
786 {
787 LPWSTR oldText = item->pszText;
788 item->pszText = newText;
789 MultiByteToWideChar( CP_ACP, 0,
790 (LPSTR)callback.item.pszText, -1,
791 item->pszText, buflen/sizeof(WCHAR));
792 item->cchTextMax = buflen/sizeof(WCHAR);
793 heap_free(oldText);
794 }
795 }
796 }
797
798 if (mask & TVIF_IMAGE)
799 item->iImage = callback.item.iImage;
800
801 if (mask & TVIF_SELECTEDIMAGE)
802 item->iSelectedImage = callback.item.iSelectedImage;
803
804 if (mask & TVIF_EXPANDEDIMAGE)
805 item->iExpandedImage = callback.item.iExpandedImage;
806
807 if (mask & TVIF_CHILDREN)
808 item->cChildren = callback.item.cChildren;
809
810 if (callback.item.mask & TVIF_STATE)
811 {
812 item->state &= ~callback.item.stateMask;
813 item->state |= (callback.item.state & callback.item.stateMask);
814 }
815
816 /* These members are now permanently set. */
817 if (callback.item.mask & TVIF_DI_SETITEM)
818 item->callbackMask &= ~callback.item.mask;
819 }
820
821 /***************************************************************************
822 * This function uses cChildren field to decide whether the item has
823 * children or not.
824 * Note: if this returns TRUE, the child items may not actually exist,
825 * they could be virtual.
826 *
827 * Just use item->firstChild to check for physical children.
828 */
829 static BOOL
830 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
831 {
832 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
833 /* Protect for a case when callback field is not changed by a host,
834 otherwise negative values trigger normal notifications. */
835 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
836 }
837
838 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
839 {
840 INT format;
841
842 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
843
844 if (nCommand != NF_REQUERY) return 0;
845
846 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
847 TRACE("format=%d\n", format);
848
849 /* Invalid format returned by NF_QUERY defaults to ANSI*/
850 if (format != NFR_ANSI && format != NFR_UNICODE)
851 format = NFR_ANSI;
852
853 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
854
855 return format;
856 }
857
858 /* Item Position ********************************************************/
859
860 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
861 static VOID
862 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
863 {
864 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
865 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
866 > TVS_LINESATROOT);
867
868 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
869 - infoPtr->scrollX;
870 item->stateOffset = item->linesOffset + infoPtr->uIndent;
871 item->imageOffset = item->stateOffset
872 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
873 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
874 }
875
876 static VOID
877 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
878 {
879 HDC hdc;
880 HFONT hOldFont=0;
881 SIZE sz;
882
883 /* DRAW's OM docker creates items like this */
884 if (item->pszText == NULL)
885 {
886 item->textWidth = 0;
887 return;
888 }
889
890 if (hDC != 0)
891 {
892 hdc = hDC;
893 }
894 else
895 {
896 hdc = GetDC(infoPtr->hwnd);
897 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
898 }
899
900 GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz);
901 item->textWidth = sz.cx;
902
903 if (hDC == 0)
904 {
905 SelectObject(hdc, hOldFont);
906 ReleaseDC(0, hdc);
907 }
908 }
909
910 static VOID
911 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
912 {
913 item->rect.top = infoPtr->uItemHeight *
914 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
915
916 item->rect.bottom = item->rect.top
917 + infoPtr->uItemHeight * item->iIntegral - 1;
918
919 item->rect.left = 0;
920 item->rect.right = infoPtr->clientWidth;
921 }
922
923 /* We know that only items after start need their order updated. */
924 static void
925 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
926 {
927 TREEVIEW_ITEM *item;
928 int order;
929
930 if (!start)
931 {
932 start = infoPtr->root->firstChild;
933 order = 0;
934 }
935 else
936 order = start->visibleOrder;
937
938 for (item = start; item != NULL;
939 item = TREEVIEW_GetNextListItem(infoPtr, item))
940 {
941 if (!ISVISIBLE(item) && order > 0)
942 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
943 item->visibleOrder = order;
944 order += item->iIntegral;
945 }
946
947 infoPtr->maxVisibleOrder = order;
948
949 for (item = infoPtr->root->firstChild; item != NULL;
950 item = TREEVIEW_GetNextListItem(infoPtr, item))
951 {
952 TREEVIEW_ComputeItemRect(infoPtr, item);
953 }
954 }
955
956
957 /* Update metrics of all items in selected subtree.
958 * root must be expanded
959 */
960 static VOID
961 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
962 {
963 TREEVIEW_ITEM *sibling;
964 HDC hdc;
965 HFONT hOldFont;
966
967 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
968 return;
969
970 root->state &= ~TVIS_EXPANDED;
971 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
972 root->state |= TVIS_EXPANDED;
973
974 hdc = GetDC(infoPtr->hwnd);
975 hOldFont = SelectObject(hdc, infoPtr->hFont);
976
977 for (; root != sibling;
978 root = TREEVIEW_GetNextListItem(infoPtr, root))
979 {
980 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
981
982 if (root->callbackMask & TVIF_TEXT)
983 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
984
985 if (root->textWidth == 0)
986 {
987 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
988 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
989 }
990 }
991
992 SelectObject(hdc, hOldFont);
993 ReleaseDC(infoPtr->hwnd, hdc);
994 }
995
996 /* Item Allocation **********************************************************/
997
998 static TREEVIEW_ITEM *
999 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
1000 {
1001 TREEVIEW_ITEM *newItem = heap_alloc_zero(sizeof(*newItem));
1002
1003 if (!newItem)
1004 return NULL;
1005
1006 /* I_IMAGENONE would make more sense but this is neither what is
1007 * documented (MSDN doesn't specify) nor what Windows actually does
1008 * (it sets it to zero)... and I can so imagine an application using
1009 * inc/dec to toggle the images. */
1010 newItem->iImage = 0;
1011 newItem->iSelectedImage = 0;
1012 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1013 newItem->infoPtr = infoPtr;
1014
1015 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1016 {
1017 heap_free(newItem);
1018 return NULL;
1019 }
1020
1021 return newItem;
1022 }
1023
1024 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1025 * free item->pszText. */
1026 static void
1027 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1028 {
1029 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1030 if (infoPtr->selectedItem == item)
1031 infoPtr->selectedItem = NULL;
1032 if (infoPtr->hotItem == item)
1033 infoPtr->hotItem = NULL;
1034 if (infoPtr->focusedItem == item)
1035 infoPtr->focusedItem = NULL;
1036 if (infoPtr->firstVisible == item)
1037 infoPtr->firstVisible = NULL;
1038 if (infoPtr->dropItem == item)
1039 infoPtr->dropItem = NULL;
1040 if (infoPtr->insertMarkItem == item)
1041 infoPtr->insertMarkItem = NULL;
1042 heap_free(item);
1043 }
1044
1045
1046 /* Item Insertion *******************************************************/
1047
1048 /***************************************************************************
1049 * This method inserts newItem before sibling as a child of parent.
1050 * sibling can be NULL, but only if parent has no children.
1051 */
1052 static void
1053 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1054 TREEVIEW_ITEM *parent)
1055 {
1056 assert(parent != NULL);
1057
1058 if (sibling != NULL)
1059 {
1060 assert(sibling->parent == parent);
1061
1062 if (sibling->prevSibling != NULL)
1063 sibling->prevSibling->nextSibling = newItem;
1064
1065 newItem->prevSibling = sibling->prevSibling;
1066 sibling->prevSibling = newItem;
1067 }
1068 else
1069 newItem->prevSibling = NULL;
1070
1071 newItem->nextSibling = sibling;
1072
1073 if (parent->firstChild == sibling)
1074 parent->firstChild = newItem;
1075
1076 if (parent->lastChild == NULL)
1077 parent->lastChild = newItem;
1078 }
1079
1080 /***************************************************************************
1081 * This method inserts newItem after sibling as a child of parent.
1082 * sibling can be NULL, but only if parent has no children.
1083 */
1084 static void
1085 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1086 TREEVIEW_ITEM *parent)
1087 {
1088 assert(parent != NULL);
1089
1090 if (sibling != NULL)
1091 {
1092 assert(sibling->parent == parent);
1093
1094 if (sibling->nextSibling != NULL)
1095 sibling->nextSibling->prevSibling = newItem;
1096
1097 newItem->nextSibling = sibling->nextSibling;
1098 sibling->nextSibling = newItem;
1099 }
1100 else
1101 newItem->nextSibling = NULL;
1102
1103 newItem->prevSibling = sibling;
1104
1105 if (parent->lastChild == sibling)
1106 parent->lastChild = newItem;
1107
1108 if (parent->firstChild == NULL)
1109 parent->firstChild = newItem;
1110 }
1111
1112 static BOOL
1113 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1114 const TVITEMEXW *tvItem, BOOL isW)
1115 {
1116 UINT callbackClear = 0;
1117 UINT callbackSet = 0;
1118
1119 TRACE("item %p\n", item);
1120 /* Do this first in case it fails. */
1121 if (tvItem->mask & TVIF_TEXT)
1122 {
1123 item->textWidth = 0; /* force width recalculation */
1124
1125 /* Covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1126 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL)
1127 {
1128 int len;
1129 LPWSTR newText;
1130 if (isW)
1131 len = lstrlenW(tvItem->pszText) + 1;
1132 else
1133 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1134
1135 /* Allocate new block to make pointer comparison in item_changed() work. */
1136 newText = heap_alloc(len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 heap_free(item->pszText);
1143 item->pszText = newText;
1144 item->cchTextMax = len;
1145 if (isW)
1146 lstrcpynW(item->pszText, tvItem->pszText, len);
1147 else
1148 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1149 item->pszText, len);
1150
1151 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1152 }
1153 else
1154 {
1155 callbackSet |= TVIF_TEXT;
1156 item->pszText = heap_realloc(item->pszText, TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1157 item->cchTextMax = TEXT_CALLBACK_SIZE;
1158 TRACE("setting callback, item %p\n", item);
1159 }
1160 }
1161
1162 if (tvItem->mask & TVIF_CHILDREN)
1163 {
1164 item->cChildren = tvItem->cChildren;
1165
1166 if (item->cChildren == I_CHILDRENCALLBACK)
1167 callbackSet |= TVIF_CHILDREN;
1168 else
1169 callbackClear |= TVIF_CHILDREN;
1170 }
1171
1172 if (tvItem->mask & TVIF_IMAGE)
1173 {
1174 item->iImage = tvItem->iImage;
1175
1176 if (item->iImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_IMAGE;
1178 else
1179 callbackClear |= TVIF_IMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1183 {
1184 item->iSelectedImage = tvItem->iSelectedImage;
1185
1186 if (item->iSelectedImage == I_IMAGECALLBACK)
1187 callbackSet |= TVIF_SELECTEDIMAGE;
1188 else
1189 callbackClear |= TVIF_SELECTEDIMAGE;
1190 }
1191
1192 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1193 {
1194 item->iExpandedImage = tvItem->iExpandedImage;
1195
1196 if (item->iExpandedImage == I_IMAGECALLBACK)
1197 callbackSet |= TVIF_EXPANDEDIMAGE;
1198 else
1199 callbackClear |= TVIF_EXPANDEDIMAGE;
1200 }
1201
1202 if (tvItem->mask & TVIF_PARAM)
1203 item->lParam = tvItem->lParam;
1204
1205 /* If the application sets TVIF_INTEGRAL without
1206 * supplying a TVITEMEX structure, it's toast. */
1207 if (tvItem->mask & TVIF_INTEGRAL)
1208 item->iIntegral = tvItem->iIntegral;
1209
1210 if (tvItem->mask & TVIF_STATE)
1211 {
1212 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1213 tvItem->stateMask);
1214 item->state &= ~tvItem->stateMask;
1215 item->state |= (tvItem->state & tvItem->stateMask);
1216 }
1217
1218 if (tvItem->mask & TVIF_STATEEX)
1219 {
1220 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1221 }
1222
1223 item->callbackMask |= callbackSet;
1224 item->callbackMask &= ~callbackClear;
1225
1226 return TRUE;
1227 }
1228
1229 /* Note that the new item is pre-zeroed. */
1230 static LRESULT
1231 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1232 {
1233 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1234 HTREEITEM insertAfter;
1235 TREEVIEW_ITEM *newItem, *parentItem;
1236 BOOL bTextUpdated = FALSE;
1237
1238 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1239 {
1240 parentItem = infoPtr->root;
1241 }
1242 else
1243 {
1244 parentItem = ptdi->hParent;
1245
1246 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1247 {
1248 WARN("invalid parent %p\n", parentItem);
1249 return 0;
1250 }
1251 }
1252
1253 insertAfter = ptdi->hInsertAfter;
1254
1255 /* Validate this now for convenience. */
1256 switch ((DWORD_PTR)insertAfter)
1257 {
1258 case (DWORD_PTR)TVI_FIRST:
1259 case (DWORD_PTR)TVI_LAST:
1260 case (DWORD_PTR)TVI_SORT:
1261 break;
1262
1263 default:
1264 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1265 insertAfter->parent != parentItem)
1266 {
1267 WARN("invalid insert after %p\n", insertAfter);
1268 insertAfter = TVI_LAST;
1269 }
1270 }
1271
1272 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1273 (tvItem->mask & TVIF_TEXT)
1274 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1275 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1276 : "<no label>");
1277
1278 newItem = TREEVIEW_AllocateItem(infoPtr);
1279 if (newItem == NULL)
1280 return 0;
1281
1282 newItem->parent = parentItem;
1283 newItem->iIntegral = 1;
1284 newItem->visibleOrder = -1;
1285
1286 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1287 return 0;
1288
1289 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1290
1291 infoPtr->uNumItems++;
1292
1293 switch ((DWORD_PTR)insertAfter)
1294 {
1295 case (DWORD_PTR)TVI_FIRST:
1296 {
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1299 if (infoPtr->firstVisible == originalFirst)
1300 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1301 }
1302 break;
1303
1304 case (DWORD_PTR)TVI_LAST:
1305 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1306 break;
1307
1308 /* hInsertAfter names a specific item we want to insert after */
1309 default:
1310 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1311 break;
1312
1313 case (DWORD_PTR)TVI_SORT:
1314 {
1315 TREEVIEW_ITEM *aChild;
1316 TREEVIEW_ITEM *previousChild = NULL;
1317 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1318 BOOL bItemInserted = FALSE;
1319
1320 aChild = parentItem->firstChild;
1321
1322 bTextUpdated = TRUE;
1323 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1324
1325 /* Iterate the parent children to see where we fit in */
1326 while (aChild != NULL)
1327 {
1328 INT comp;
1329
1330 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1331 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1332
1333 if (comp < 0) /* we are smaller than the current one */
1334 {
1335 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1336 if (infoPtr->firstVisible == originalFirst &&
1337 aChild == originalFirst)
1338 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1339 bItemInserted = TRUE;
1340 break;
1341 }
1342 else if (comp > 0) /* we are bigger than the current one */
1343 {
1344 previousChild = aChild;
1345
1346 /* This will help us to exit if there is no more sibling */
1347 aChild = (aChild->nextSibling == 0)
1348 ? NULL
1349 : aChild->nextSibling;
1350
1351 /* Look at the next item */
1352 continue;
1353 }
1354 else if (comp == 0)
1355 {
1356 /*
1357 * An item with this name is already existing, therefore,
1358 * we add after the one we found
1359 */
1360 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1361 bItemInserted = TRUE;
1362 break;
1363 }
1364 }
1365
1366 /*
1367 * we reach the end of the child list and the item has not
1368 * yet been inserted, therefore, insert it after the last child.
1369 */
1370 if ((!bItemInserted) && (aChild == NULL))
1371 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1372
1373 break;
1374 }
1375 }
1376
1377
1378 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1379 newItem->parent, tvItem->mask);
1380
1381 newItem->iLevel = newItem->parent->iLevel + 1;
1382
1383 if (newItem->parent->cChildren == 0)
1384 newItem->parent->cChildren = 1;
1385
1386 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1387 {
1388 if (STATEIMAGEINDEX(newItem->state) == 0)
1389 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1390 }
1391
1392 if (infoPtr->firstVisible == NULL)
1393 infoPtr->firstVisible = newItem;
1394
1395 TREEVIEW_VerifyTree(infoPtr);
1396
1397 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1398
1399 if (parentItem == infoPtr->root ||
1400 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1401 {
1402 TREEVIEW_ITEM *item;
1403 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1404
1405 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1406 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1407
1408 if (!bTextUpdated)
1409 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1410
1411 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1412 TREEVIEW_UpdateScrollBars(infoPtr);
1413 /*
1414 * if the item was inserted in a visible part of the tree,
1415 * invalidate it, as well as those after it
1416 */
1417 for (item = newItem;
1418 item != NULL;
1419 item = TREEVIEW_GetNextListItem(infoPtr, item))
1420 TREEVIEW_Invalidate(infoPtr, item);
1421 }
1422 else
1423 {
1424 /* refresh treeview if newItem is the first item inserted under parentItem */
1425 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1426 {
1427 /* parent got '+' - update it */
1428 TREEVIEW_Invalidate(infoPtr, parentItem);
1429 }
1430 }
1431
1432 return (LRESULT)newItem;
1433 }
1434
1435 /* Item Deletion ************************************************************/
1436 static void
1437 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1438
1439 static void
1440 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1441 {
1442 TREEVIEW_ITEM *kill = parentItem->firstChild;
1443
1444 while (kill != NULL)
1445 {
1446 TREEVIEW_ITEM *next = kill->nextSibling;
1447
1448 TREEVIEW_RemoveItem(infoPtr, kill);
1449
1450 kill = next;
1451 }
1452
1453 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1454 assert(parentItem->firstChild == NULL);
1455 assert(parentItem->lastChild == NULL);
1456 }
1457
1458 static void
1459 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1460 {
1461 TREEVIEW_ITEM *parentItem;
1462
1463 assert(item != NULL);
1464 assert(item->parent != NULL); /* i.e. it must not be the root */
1465
1466 parentItem = item->parent;
1467
1468 if (parentItem->firstChild == item)
1469 parentItem->firstChild = item->nextSibling;
1470
1471 if (parentItem->lastChild == item)
1472 parentItem->lastChild = item->prevSibling;
1473
1474 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1475 && parentItem->cChildren > 0)
1476 parentItem->cChildren = 0;
1477
1478 if (item->prevSibling)
1479 item->prevSibling->nextSibling = item->nextSibling;
1480
1481 if (item->nextSibling)
1482 item->nextSibling->prevSibling = item->prevSibling;
1483 }
1484
1485 static void
1486 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1487 {
1488 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1489
1490 if (item->firstChild)
1491 TREEVIEW_RemoveAllChildren(infoPtr, item);
1492
1493 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1494 TVIF_HANDLE | TVIF_PARAM, item, 0);
1495
1496 TREEVIEW_UnlinkItem(item);
1497
1498 infoPtr->uNumItems--;
1499
1500 if (item->pszText != LPSTR_TEXTCALLBACKW)
1501 heap_free(item->pszText);
1502
1503 TREEVIEW_FreeItem(infoPtr, item);
1504 }
1505
1506
1507 /* Empty out the tree. */
1508 static void
1509 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1510 {
1511 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1512
1513 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1514 }
1515
1516 static LRESULT
1517 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1518 {
1519 TREEVIEW_ITEM *newSelection = NULL;
1520 TREEVIEW_ITEM *newFirstVisible = NULL;
1521 TREEVIEW_ITEM *parent, *prev = NULL;
1522 BOOL visible = FALSE;
1523
1524 if (item == TVI_ROOT || !item)
1525 {
1526 TRACE("TVI_ROOT\n");
1527 parent = infoPtr->root;
1528 newSelection = NULL;
1529 visible = TRUE;
1530 TREEVIEW_RemoveTree(infoPtr);
1531 }
1532 else
1533 {
1534 if (!TREEVIEW_ValidItem(infoPtr, item))
1535 return FALSE;
1536
1537 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1538 parent = item->parent;
1539
1540 if (ISVISIBLE(item))
1541 {
1542 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1543 visible = TRUE;
1544 }
1545
1546 if (infoPtr->selectedItem != NULL
1547 && (item == infoPtr->selectedItem
1548 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1549 {
1550 if (item->nextSibling)
1551 newSelection = item->nextSibling;
1552 else if (item->parent != infoPtr->root)
1553 newSelection = item->parent;
1554 else
1555 newSelection = item->prevSibling;
1556 TRACE("newSelection = %p\n", newSelection);
1557 }
1558
1559 if (infoPtr->firstVisible == item)
1560 {
1561 visible = TRUE;
1562 if (item->nextSibling)
1563 newFirstVisible = item->nextSibling;
1564 else if (item->prevSibling)
1565 newFirstVisible = item->prevSibling;
1566 else if (item->parent != infoPtr->root)
1567 newFirstVisible = item->parent;
1568 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1569 }
1570 else
1571 newFirstVisible = infoPtr->firstVisible;
1572
1573 TREEVIEW_RemoveItem(infoPtr, item);
1574 }
1575
1576 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1577 if (!infoPtr->selectedItem && newSelection)
1578 {
1579 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1580 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1581 }
1582
1583 /* Validate insertMark dropItem.
1584 * hotItem ??? - used for comparison only.
1585 */
1586 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1587 infoPtr->insertMarkItem = 0;
1588
1589 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1590 infoPtr->dropItem = 0;
1591
1592 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1593 newFirstVisible = infoPtr->root->firstChild;
1594
1595 TREEVIEW_VerifyTree(infoPtr);
1596
1597 if (visible)
1598 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1599
1600 if (!infoPtr->bRedraw) return TRUE;
1601
1602 if (visible)
1603 {
1604 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1605 TREEVIEW_UpdateScrollBars(infoPtr);
1606 TREEVIEW_Invalidate(infoPtr, NULL);
1607 }
1608 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1609 {
1610 /* parent lost '+/-' - update it */
1611 TREEVIEW_Invalidate(infoPtr, parent);
1612 }
1613
1614 return TRUE;
1615 }
1616
1617
1618 /* Get/Set Messages *********************************************************/
1619 static LRESULT
1620 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1621 {
1622 infoPtr->bRedraw = wParam != 0;
1623
1624 if (infoPtr->bRedraw)
1625 {
1626 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1627 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1628 TREEVIEW_UpdateScrollBars(infoPtr);
1629 TREEVIEW_Invalidate(infoPtr, NULL);
1630 }
1631 return 0;
1632 }
1633
1634 static LRESULT
1635 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1636 {
1637 TRACE("\n");
1638 return infoPtr->uIndent;
1639 }
1640
1641 static LRESULT
1642 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1643 {
1644 TRACE("\n");
1645
1646 if (newIndent < MINIMUM_INDENT)
1647 newIndent = MINIMUM_INDENT;
1648
1649 if (infoPtr->uIndent != newIndent)
1650 {
1651 infoPtr->uIndent = newIndent;
1652 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1653 TREEVIEW_UpdateScrollBars(infoPtr);
1654 TREEVIEW_Invalidate(infoPtr, NULL);
1655 }
1656
1657 return 0;
1658 }
1659
1660
1661 static LRESULT
1662 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1663 {
1664 TRACE("\n");
1665 return (LRESULT)infoPtr->hwndToolTip;
1666 }
1667
1668 static LRESULT
1669 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1670 {
1671 HWND prevToolTip;
1672
1673 TRACE("\n");
1674 prevToolTip = infoPtr->hwndToolTip;
1675 infoPtr->hwndToolTip = hwndTT;
1676
1677 return (LRESULT)prevToolTip;
1678 }
1679
1680 static LRESULT
1681 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1682 {
1683 BOOL rc = infoPtr->bNtfUnicode;
1684 infoPtr->bNtfUnicode = fUnicode;
1685 return rc;
1686 }
1687
1688 static LRESULT
1689 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1690 {
1691 return infoPtr->bNtfUnicode;
1692 }
1693
1694 static LRESULT
1695 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1696 {
1697 return infoPtr->uScrollTime;
1698 }
1699
1700 static LRESULT
1701 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1702 {
1703 UINT uOldScrollTime = infoPtr->uScrollTime;
1704
1705 infoPtr->uScrollTime = min(uScrollTime, 100);
1706
1707 return uOldScrollTime;
1708 }
1709
1710
1711 static LRESULT
1712 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1713 {
1714 TRACE("\n");
1715
1716 switch (wParam)
1717 {
1718 case TVSIL_NORMAL:
1719 return (LRESULT)infoPtr->himlNormal;
1720
1721 case TVSIL_STATE:
1722 return (LRESULT)infoPtr->himlState;
1723
1724 default:
1725 return 0;
1726 }
1727 }
1728
1729 #define TVHEIGHT_MIN 16
1730 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1731
1732 /* Compute the natural height for items. */
1733 static UINT
1734 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1735 {
1736 TEXTMETRICW tm;
1737 HDC hdc = GetDC(0);
1738 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1739 UINT height;
1740
1741 /* Height is the maximum of:
1742 * 16 (a hack because our fonts are tiny), and
1743 * The text height + border & margin, and
1744 * The size of the normal image list
1745 */
1746 GetTextMetricsW(hdc, &tm);
1747 SelectObject(hdc, hOldFont);
1748 ReleaseDC(0, hdc);
1749
1750 height = TVHEIGHT_MIN;
1751 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1752 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1753 if (height < infoPtr->normalImageHeight)
1754 height = infoPtr->normalImageHeight;
1755
1756 /* Round down, unless we support odd ("non even") heights. */
1757 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1758 height &= ~1;
1759
1760 return height;
1761 }
1762
1763 static LRESULT
1764 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1765 {
1766 HIMAGELIST himlOld = 0;
1767 int oldWidth = infoPtr->normalImageWidth;
1768 int oldHeight = infoPtr->normalImageHeight;
1769
1770 TRACE("%u,%p\n", type, himlNew);
1771
1772 switch (type)
1773 {
1774 case TVSIL_NORMAL:
1775 himlOld = infoPtr->himlNormal;
1776 infoPtr->himlNormal = himlNew;
1777
1778 if (himlNew)
1779 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1780 &infoPtr->normalImageHeight);
1781 else
1782 {
1783 infoPtr->normalImageWidth = 0;
1784 infoPtr->normalImageHeight = 0;
1785 }
1786
1787 break;
1788
1789 case TVSIL_STATE:
1790 himlOld = infoPtr->himlState;
1791 infoPtr->himlState = himlNew;
1792
1793 if (himlNew)
1794 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1795 &infoPtr->stateImageHeight);
1796 else
1797 {
1798 infoPtr->stateImageWidth = 0;
1799 infoPtr->stateImageHeight = 0;
1800 }
1801
1802 break;
1803
1804 default:
1805 ERR("unknown imagelist type %u\n", type);
1806 }
1807
1808 if (oldWidth != infoPtr->normalImageWidth ||
1809 oldHeight != infoPtr->normalImageHeight)
1810 {
1811 BOOL bRecalcVisible = FALSE;
1812
1813 if (oldHeight != infoPtr->normalImageHeight &&
1814 !infoPtr->bHeightSet)
1815 {
1816 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1817 bRecalcVisible = TRUE;
1818 }
1819
1820 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1821 infoPtr->normalImageWidth != infoPtr->uIndent)
1822 {
1823 infoPtr->uIndent = infoPtr->normalImageWidth;
1824 bRecalcVisible = TRUE;
1825 }
1826
1827 if (bRecalcVisible)
1828 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1829
1830 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1831 TREEVIEW_UpdateScrollBars(infoPtr);
1832 }
1833
1834 TREEVIEW_Invalidate(infoPtr, NULL);
1835
1836 return (LRESULT)himlOld;
1837 }
1838
1839 static LRESULT
1840 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1841 {
1842 INT prevHeight = infoPtr->uItemHeight;
1843
1844 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1845 if (newHeight == -1)
1846 {
1847 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1848 infoPtr->bHeightSet = FALSE;
1849 }
1850 else
1851 {
1852 if (newHeight == 0) newHeight = 1;
1853 infoPtr->uItemHeight = newHeight;
1854 infoPtr->bHeightSet = TRUE;
1855 }
1856
1857 /* Round down, unless we support odd ("non even") heights. */
1858 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1859 {
1860 infoPtr->uItemHeight &= ~1;
1861 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1862 }
1863
1864 if (infoPtr->uItemHeight != prevHeight)
1865 {
1866 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1867 TREEVIEW_UpdateScrollBars(infoPtr);
1868 TREEVIEW_Invalidate(infoPtr, NULL);
1869 }
1870
1871 return prevHeight;
1872 }
1873
1874 static LRESULT
1875 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1876 {
1877 TRACE("\n");
1878 return infoPtr->uItemHeight;
1879 }
1880
1881
1882 static LRESULT
1883 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1884 {
1885 TRACE("%p\n", infoPtr->hFont);
1886 return (LRESULT)infoPtr->hFont;
1887 }
1888
1889
1890 static INT CALLBACK
1891 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1892 {
1893 (void)unused;
1894
1895 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1896
1897 return 1;
1898 }
1899
1900 static LRESULT
1901 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1902 {
1903 UINT uHeight = infoPtr->uItemHeight;
1904
1905 TRACE("%p %i\n", hFont, bRedraw);
1906
1907 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1908
1909 DeleteObject(infoPtr->hBoldFont);
1910 DeleteObject(infoPtr->hUnderlineFont);
1911 DeleteObject(infoPtr->hBoldUnderlineFont);
1912 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1913 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1914 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1915
1916 if (!infoPtr->bHeightSet)
1917 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1918
1919 if (uHeight != infoPtr->uItemHeight)
1920 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1921
1922 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1923
1924 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1925 TREEVIEW_UpdateScrollBars(infoPtr);
1926
1927 if (bRedraw)
1928 TREEVIEW_Invalidate(infoPtr, NULL);
1929
1930 return 0;
1931 }
1932
1933
1934 static LRESULT
1935 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1936 {
1937 TRACE("\n");
1938 return (LRESULT)infoPtr->clrLine;
1939 }
1940
1941 static LRESULT
1942 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1943 {
1944 COLORREF prevColor = infoPtr->clrLine;
1945
1946 TRACE("\n");
1947 infoPtr->clrLine = color;
1948 return (LRESULT)prevColor;
1949 }
1950
1951
1952 static LRESULT
1953 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1954 {
1955 TRACE("\n");
1956 return (LRESULT)infoPtr->clrText;
1957 }
1958
1959 static LRESULT
1960 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1961 {
1962 COLORREF prevColor = infoPtr->clrText;
1963
1964 TRACE("\n");
1965 infoPtr->clrText = color;
1966
1967 if (infoPtr->clrText != prevColor)
1968 TREEVIEW_Invalidate(infoPtr, NULL);
1969
1970 return (LRESULT)prevColor;
1971 }
1972
1973
1974 static LRESULT
1975 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1976 {
1977 TRACE("\n");
1978 return (LRESULT)infoPtr->clrBk;
1979 }
1980
1981 static LRESULT
1982 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1983 {
1984 COLORREF prevColor = infoPtr->clrBk;
1985
1986 TRACE("\n");
1987 infoPtr->clrBk = newColor;
1988
1989 if (newColor != prevColor)
1990 TREEVIEW_Invalidate(infoPtr, NULL);
1991
1992 return (LRESULT)prevColor;
1993 }
1994
1995
1996 static LRESULT
1997 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1998 {
1999 TRACE("\n");
2000 return (LRESULT)infoPtr->clrInsertMark;
2001 }
2002
2003 static LRESULT
2004 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
2005 {
2006 COLORREF prevColor = infoPtr->clrInsertMark;
2007
2008 TRACE("0x%08x\n", color);
2009 infoPtr->clrInsertMark = color;
2010
2011 return (LRESULT)prevColor;
2012 }
2013
2014
2015 static LRESULT
2016 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2017 {
2018 TRACE("%d %p\n", wParam, item);
2019
2020 if (!TREEVIEW_ValidItem(infoPtr, item))
2021 return 0;
2022
2023 infoPtr->insertBeforeorAfter = wParam;
2024 infoPtr->insertMarkItem = item;
2025
2026 TREEVIEW_Invalidate(infoPtr, NULL);
2027
2028 return 1;
2029 }
2030
2031
2032 /************************************************************************
2033 * Some serious braindamage here. lParam is a pointer to both the
2034 * input HTREEITEM and the output RECT.
2035 */
2036 static LRESULT
2037 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2038 {
2039 TREEVIEW_ITEM *item;
2040 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2041
2042 TRACE("\n");
2043
2044 if (pItem == NULL)
2045 return FALSE;
2046
2047 item = *pItem;
2048 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2049 return FALSE;
2050
2051 /*
2052 * If wParam is TRUE return the text size otherwise return
2053 * the whole item size
2054 */
2055 if (fTextRect)
2056 {
2057 /* Windows does not send TVN_GETDISPINFO here. */
2058
2059 lpRect->top = item->rect.top;
2060 lpRect->bottom = item->rect.bottom;
2061
2062 lpRect->left = item->textOffset;
2063 if (!item->textWidth)
2064 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2065
2066 lpRect->right = item->textOffset + item->textWidth + 4;
2067 }
2068 else
2069 {
2070 *lpRect = item->rect;
2071 }
2072
2073 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2074
2075 return TRUE;
2076 }
2077
2078 static inline LRESULT
2079 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2080 {
2081 /* Surprise! This does not take integral height into account. */
2082 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2083 return infoPtr->clientHeight / infoPtr->uItemHeight;
2084 }
2085
2086
2087 static LRESULT
2088 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2089 {
2090 TREEVIEW_ITEM *item = tvItem->hItem;
2091
2092 if (!TREEVIEW_ValidItem(infoPtr, item))
2093 {
2094 BOOL valid_item = FALSE;
2095 if (!item) return FALSE;
2096
2097 __TRY
2098 {
2099 infoPtr = item->infoPtr;
2100 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2101 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2102 }
2103 __EXCEPT_PAGE_FAULT
2104 {
2105 }
2106 __ENDTRY
2107 if (!valid_item) return FALSE;
2108 }
2109
2110 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2111
2112 if (tvItem->mask & TVIF_CHILDREN)
2113 {
2114 if (item->cChildren==I_CHILDRENCALLBACK)
2115 FIXME("I_CHILDRENCALLBACK not supported\n");
2116 tvItem->cChildren = item->cChildren;
2117 }
2118
2119 if (tvItem->mask & TVIF_HANDLE)
2120 tvItem->hItem = item;
2121
2122 if (tvItem->mask & TVIF_IMAGE)
2123 tvItem->iImage = item->iImage;
2124
2125 if (tvItem->mask & TVIF_INTEGRAL)
2126 tvItem->iIntegral = item->iIntegral;
2127
2128 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2129 tvItem->lParam = item->lParam;
2130
2131 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2132 tvItem->iSelectedImage = item->iSelectedImage;
2133
2134 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2135 tvItem->iExpandedImage = item->iExpandedImage;
2136
2137 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2138 tvItem->state = item->state;
2139
2140 if (tvItem->mask & TVIF_TEXT)
2141 {
2142 if (item->pszText == NULL)
2143 {
2144 if (tvItem->cchTextMax > 0)
2145 tvItem->pszText[0] = '\0';
2146 }
2147 else if (isW)
2148 {
2149 if (item->pszText == LPSTR_TEXTCALLBACKW)
2150 {
2151 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2152 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2153 }
2154 else
2155 {
2156 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2157 }
2158 }
2159 else
2160 {
2161 if (item->pszText == LPSTR_TEXTCALLBACKW)
2162 {
2163 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2164 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2165 }
2166 else
2167 {
2168 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2169 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2170 }
2171 }
2172 }
2173
2174 if (tvItem->mask & TVIF_STATEEX)
2175 {
2176 FIXME("Extended item state not supported, returning 0.\n");
2177 tvItem->uStateEx = 0;
2178 }
2179
2180 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2181 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2182
2183 return TRUE;
2184 }
2185
2186 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2187 * which is wrong. */
2188 static LRESULT
2189 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2190 {
2191 TREEVIEW_ITEM *item;
2192 TREEVIEW_ITEM originalItem;
2193
2194 item = tvItem->hItem;
2195
2196 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2197 tvItem->mask);
2198
2199 if (!TREEVIEW_ValidItem(infoPtr, item))
2200 return FALSE;
2201
2202 /* Store the original item values. Text buffer will be freed in TREEVIEW_DoSetItemT() below. */
2203 originalItem = *item;
2204
2205 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2206 return FALSE;
2207
2208 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2209 if ((tvItem->mask & TVIF_TEXT
2210 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2211 && ISVISIBLE(item))
2212 {
2213 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2214 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2215 }
2216
2217 if (tvItem->mask != 0 && ISVISIBLE(item))
2218 {
2219 /* The refresh updates everything, but we can't wait until then. */
2220 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2221
2222 /* if any of the item's values changed and it's not a callback, redraw the item */
2223 if (item_changed(&originalItem, item, tvItem))
2224 {
2225 if (tvItem->mask & TVIF_INTEGRAL)
2226 {
2227 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2228 TREEVIEW_UpdateScrollBars(infoPtr);
2229
2230 TREEVIEW_Invalidate(infoPtr, NULL);
2231 }
2232 else
2233 {
2234 TREEVIEW_UpdateScrollBars(infoPtr);
2235 TREEVIEW_Invalidate(infoPtr, item);
2236 }
2237 }
2238 }
2239
2240 return TRUE;
2241 }
2242
2243 static LRESULT
2244 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2245 {
2246 TRACE("\n");
2247
2248 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2249 return 0;
2250
2251 return (item->state & mask);
2252 }
2253
2254 static LRESULT
2255 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2256 {
2257 TREEVIEW_ITEM *retval;
2258
2259 retval = 0;
2260
2261 /* handle all the global data here */
2262 switch (which)
2263 {
2264 case TVGN_CHILD: /* Special case: child of 0 is root */
2265 if (item)
2266 break;
2267 /* fall through */
2268 case TVGN_ROOT:
2269 retval = infoPtr->root->firstChild;
2270 break;
2271
2272 case TVGN_CARET:
2273 retval = infoPtr->selectedItem;
2274 break;
2275
2276 case TVGN_FIRSTVISIBLE:
2277 retval = infoPtr->firstVisible;
2278 break;
2279
2280 case TVGN_DROPHILITE:
2281 retval = infoPtr->dropItem;
2282 break;
2283
2284 case TVGN_LASTVISIBLE:
2285 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2286 break;
2287 }
2288
2289 if (retval)
2290 {
2291 TRACE("flags:0x%x, returns %p\n", which, retval);
2292 return (LRESULT)retval;
2293 }
2294
2295 if (item == TVI_ROOT) item = infoPtr->root;
2296
2297 if (!TREEVIEW_ValidItem(infoPtr, item))
2298 return FALSE;
2299
2300 switch (which)
2301 {
2302 case TVGN_NEXT:
2303 retval = item->nextSibling;
2304 break;
2305 case TVGN_PREVIOUS:
2306 retval = item->prevSibling;
2307 break;
2308 case TVGN_PARENT:
2309 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2310 break;
2311 case TVGN_CHILD:
2312 retval = item->firstChild;
2313 break;
2314 case TVGN_NEXTVISIBLE:
2315 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2316 break;
2317 case TVGN_PREVIOUSVISIBLE:
2318 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2319 break;
2320 default:
2321 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2322 break;
2323 }
2324
2325 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2326 return (LRESULT)retval;
2327 }
2328
2329
2330 static LRESULT
2331 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2332 {
2333 TRACE(" %d\n", infoPtr->uNumItems);
2334 return (LRESULT)infoPtr->uNumItems;
2335 }
2336
2337 static VOID
2338 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2339 {
2340 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2341 {
2342 static const unsigned int state_table[] = { 0, 2, 1 };
2343
2344 unsigned int state;
2345
2346 state = STATEIMAGEINDEX(item->state);
2347 TRACE("state: 0x%x\n", state);
2348 item->state &= ~TVIS_STATEIMAGEMASK;
2349
2350 if (state < 3)
2351 state = state_table[state];
2352
2353 item->state |= INDEXTOSTATEIMAGEMASK(state);
2354
2355 TRACE("state: 0x%x\n", state);
2356 TREEVIEW_Invalidate(infoPtr, item);
2357 }
2358 }
2359
2360
2361 /* Painting *************************************************************/
2362
2363 /* Draw the lines and expand button for an item. Also draws one section
2364 * of the line from item's parent to item's parent's next sibling. */
2365 static void
2366 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2367 {
2368 LONG centerx, centery;
2369 BOOL lar = ((infoPtr->dwStyle
2370 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2371 > TVS_LINESATROOT);
2372 HBRUSH hbr, hbrOld;
2373 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2374
2375 if (!lar && item->iLevel == 0)
2376 return;
2377
2378 hbr = CreateSolidBrush(clrBk);
2379 hbrOld = SelectObject(hdc, hbr);
2380
2381 centerx = (item->linesOffset + item->stateOffset) / 2;
2382 centery = (item->rect.top + item->rect.bottom) / 2;
2383
2384 if (infoPtr->dwStyle & TVS_HASLINES)
2385 {
2386 HPEN hOldPen, hNewPen;
2387 HTREEITEM parent;
2388 LOGBRUSH lb;
2389
2390 /* Get a dotted grey pen */
2391 lb.lbStyle = BS_SOLID;
2392 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2393 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2394 hOldPen = SelectObject(hdc, hNewPen);
2395
2396 /* Make sure the center is on a dot (using +2 instead
2397 * of +1 gives us pixel-by-pixel compat with native) */
2398 centery = (centery + 2) & ~1;
2399
2400 MoveToEx(hdc, item->stateOffset, centery, NULL);
2401 LineTo(hdc, centerx - 1, centery);
2402
2403 if (item->prevSibling || item->parent != infoPtr->root)
2404 {
2405 MoveToEx(hdc, centerx, item->rect.top, NULL);
2406 LineTo(hdc, centerx, centery);
2407 }
2408
2409 if (item->nextSibling)
2410 {
2411 MoveToEx(hdc, centerx, centery, NULL);
2412 LineTo(hdc, centerx, item->rect.bottom + 1);
2413 }
2414
2415 /* Draw the line from our parent to its next sibling. */
2416 parent = item->parent;
2417 while (parent != infoPtr->root)
2418 {
2419 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2420
2421 if (parent->nextSibling
2422 /* skip top-levels unless TVS_LINESATROOT */
2423 && parent->stateOffset > parent->linesOffset)
2424 {
2425 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2426 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2427 }
2428
2429 parent = parent->parent;
2430 }
2431
2432 SelectObject(hdc, hOldPen);
2433 DeleteObject(hNewPen);
2434 }
2435
2436 /*
2437 * Display the (+/-) signs
2438 */
2439
2440 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2441 {
2442 if (item->cChildren)
2443 {
2444 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2445 if (theme)
2446 {
2447 RECT glyphRect = item->rect;
2448 glyphRect.left = item->linesOffset;
2449 glyphRect.right = item->stateOffset;
2450 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2451 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2452 &glyphRect, NULL);
2453 }
2454 else
2455 {
2456 LONG height = item->rect.bottom - item->rect.top;
2457 LONG width = item->stateOffset - item->linesOffset;
2458 LONG rectsize = min(height, width) / 4;
2459 /* plussize = ceil(rectsize * 3/4) */
2460 LONG plussize = (rectsize + 1) * 3 / 4;
2461
2462 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2463 HPEN old_pen = SelectObject(hdc, new_pen);
2464
2465 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2466 centerx + rectsize + 2, centery + rectsize + 2);
2467
2468 SelectObject(hdc, old_pen);
2469 DeleteObject(new_pen);
2470
2471 /* draw +/- signs with current text color */
2472 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2473 old_pen = SelectObject(hdc, new_pen);
2474
2475 if (height < 18 || width < 18)
2476 {
2477 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2478 LineTo(hdc, centerx + plussize, centery);
2479
2480 if (!(item->state & TVIS_EXPANDED) ||
2481 (item->state & TVIS_EXPANDPARTIAL))
2482 {
2483 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2484 LineTo(hdc, centerx, centery + plussize);
2485 }
2486 }
2487 else
2488 {
2489 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2490 centerx + plussize, centery + 2);
2491
2492 if (!(item->state & TVIS_EXPANDED) ||
2493 (item->state & TVIS_EXPANDPARTIAL))
2494 {
2495 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2496 centerx + 2, centery + plussize);
2497 SetPixel(hdc, centerx - 1, centery, clrBk);
2498 SetPixel(hdc, centerx + 1, centery, clrBk);
2499 }
2500 }
2501
2502 SelectObject(hdc, old_pen);
2503 DeleteObject(new_pen);
2504 }
2505 }
2506 }
2507 SelectObject(hdc, hbrOld);
2508 DeleteObject(hbr);
2509 }
2510
2511 static void
2512 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2513 {
2514 INT cditem;
2515 HFONT hOldFont;
2516 COLORREF oldTextColor, oldTextBkColor;
2517 int centery;
2518 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2519 NMTVCUSTOMDRAW nmcdhdr;
2520
2521 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2522
2523 /* - If item is drop target or it is selected and window is in focus -
2524 * use blue background (COLOR_HIGHLIGHT).
2525 * - If item is selected, window is not in focus, but it has style
2526 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2527 * - Otherwise - use background color
2528 */
2529 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2530 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2531 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2532 {
2533 if ((item->state & TVIS_DROPHILITED) || inFocus)
2534 {
2535 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2536 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2537 }
2538 else
2539 {
2540 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2541 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2542 }
2543 }
2544 else
2545 {
2546 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2547 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2548 nmcdhdr.clrText = comctl32_color.clrHighlight;
2549 else
2550 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2551 }
2552
2553 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2554 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2555 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2556
2557 /* The custom draw handler can query the text rectangle,
2558 * so get ready. */
2559 /* should already be known, set to 0 when changed */
2560 if (!item->textWidth)
2561 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2562
2563 cditem = 0;
2564
2565 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2566 {
2567 cditem = TREEVIEW_SendCustomDrawItemNotify
2568 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2569 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2570
2571 if (cditem & CDRF_SKIPDEFAULT)
2572 {
2573 SelectObject(hdc, hOldFont);
2574 return;
2575 }
2576 }
2577
2578 if (cditem & CDRF_NEWFONT)
2579 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2580
2581 if (TREEVIEW_IsFullRowSelect(infoPtr))
2582 {
2583 HBRUSH brush = CreateSolidBrush(nmcdhdr.clrTextBk);
2584 FillRect(hdc, &item->rect, brush);
2585 DeleteObject(brush);
2586 }
2587
2588 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2589
2590 /* reset colors. Custom draw handler can change them */
2591 SetTextColor(hdc, nmcdhdr.clrText);
2592 SetBkColor(hdc, nmcdhdr.clrTextBk);
2593
2594 centery = (item->rect.top + item->rect.bottom) / 2;
2595
2596 /*
2597 * Display the images associated with this item
2598 */
2599 {
2600 INT imageIndex;
2601
2602 /* State images are displayed to the left of the Normal image
2603 * image number is in state; zero should be `display no image'.
2604 */
2605 imageIndex = STATEIMAGEINDEX(item->state);
2606
2607 if (infoPtr->himlState && imageIndex)
2608 {
2609 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2610 item->stateOffset,
2611 centery - infoPtr->stateImageHeight / 2,
2612 ILD_NORMAL);
2613 }
2614
2615 /* Now, draw the normal image; can be either selected,
2616 * non-selected or expanded image.
2617 */
2618
2619 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2620 {
2621 /* The item is currently selected */
2622 imageIndex = item->iSelectedImage;
2623 }
2624 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2625 {
2626 /* The item is currently not selected but expanded */
2627 imageIndex = item->iExpandedImage;
2628 }
2629 else
2630 {
2631 /* The item is not selected and not expanded */
2632 imageIndex = item->iImage;
2633 }
2634
2635 if (infoPtr->himlNormal)
2636 {
2637 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2638
2639 style |= item->state & TVIS_OVERLAYMASK;
2640
2641 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2642 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2643 0, 0,
2644 TREEVIEW_IsFullRowSelect(infoPtr) ? nmcdhdr.clrTextBk : infoPtr->clrBk,
2645 item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2646 style);
2647 }
2648 }
2649
2650
2651 /*
2652 * Display the text associated with this item
2653 */
2654
2655 /* Don't paint item's text if it's being edited */
2656 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2657 {
2658 if (item->pszText)
2659 {
2660 RECT rcText;
2661 UINT align;
2662 SIZE sz;
2663
2664 rcText.top = item->rect.top;
2665 rcText.bottom = item->rect.bottom;
2666 rcText.left = item->textOffset;
2667 rcText.right = rcText.left + item->textWidth + 4;
2668
2669 TRACE("drawing text %s at (%s)\n",
2670 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2671
2672 /* Draw it */
2673 GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz);
2674
2675 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2676 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2677 ETO_CLIPPED | ETO_OPAQUE,
2678 &rcText,
2679 item->pszText,
2680 lstrlenW(item->pszText),
2681 NULL);
2682 SetTextAlign(hdc, align);
2683
2684 /* Draw focus box around the selected item */
2685 if ((item == infoPtr->selectedItem) && inFocus)
2686 {
2687 DrawFocusRect(hdc,&rcText);
2688 }
2689 }
2690 }
2691
2692 /* Draw insertion mark if necessary */
2693
2694 if (infoPtr->insertMarkItem)
2695 TRACE("item:%d,mark:%p\n",
2696 TREEVIEW_GetItemIndex(infoPtr, item),
2697 infoPtr->insertMarkItem);
2698
2699 if (item == infoPtr->insertMarkItem)
2700 {
2701 HPEN hNewPen, hOldPen;
2702 int offset;
2703 int left, right;
2704
2705 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2706 hOldPen = SelectObject(hdc, hNewPen);
2707
2708 if (infoPtr->insertBeforeorAfter)
2709 offset = item->rect.bottom - 1;
2710 else
2711 offset = item->rect.top + 1;
2712
2713 left = item->textOffset - 2;
2714 right = item->textOffset + item->textWidth + 2;
2715
2716 MoveToEx(hdc, left, offset - 3, NULL);
2717 LineTo(hdc, left, offset + 4);
2718
2719 MoveToEx(hdc, left, offset, NULL);
2720 LineTo(hdc, right + 1, offset);
2721
2722 MoveToEx(hdc, right, offset + 3, NULL);
2723 LineTo(hdc, right, offset - 4);
2724
2725 SelectObject(hdc, hOldPen);
2726 DeleteObject(hNewPen);
2727 }
2728
2729 /* Restore the hdc state */
2730 SetTextColor(hdc, oldTextColor);
2731 SetBkColor(hdc, oldTextBkColor);
2732 SelectObject(hdc, hOldFont);
2733
2734 if (cditem & CDRF_NOTIFYPOSTPAINT)
2735 {
2736 cditem = TREEVIEW_SendCustomDrawItemNotify
2737 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2738 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2739 }
2740 }
2741
2742 /* Computes treeHeight and treeWidth and updates the scroll bars.
2743 */
2744 static void
2745 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2746 {
2747 TREEVIEW_ITEM *item;
2748 HWND hwnd = infoPtr->hwnd;
2749 BOOL vert = FALSE;
2750 BOOL horz = FALSE;
2751 SCROLLINFO si;
2752 LONG scrollX = infoPtr->scrollX;
2753
2754 infoPtr->treeWidth = 0;
2755 infoPtr->treeHeight = 0;
2756
2757 /* We iterate through all visible items in order to get the tree height
2758 * and width */
2759 item = infoPtr->root->firstChild;
2760
2761 while (item != NULL)
2762 {
2763 if (ISVISIBLE(item))
2764 {
2765 /* actually we draw text at textOffset + 2 */
2766 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2767 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2768
2769 /* This is scroll-adjusted, but we fix this below. */
2770 infoPtr->treeHeight = item->rect.bottom;
2771 }
2772
2773 item = TREEVIEW_GetNextListItem(infoPtr, item);
2774 }
2775
2776 /* Fix the scroll adjusted treeHeight and treeWidth. */
2777 if (infoPtr->root->firstChild)
2778 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2779
2780 infoPtr->treeWidth += infoPtr->scrollX;
2781
2782 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2783
2784 /* Adding one scroll bar may take up enough space that it forces us
2785 * to add the other as well. */
2786 if (infoPtr->treeHeight > infoPtr->clientHeight)
2787 {
2788 vert = TRUE;
2789
2790 if (infoPtr->treeWidth
2791 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2792 horz = TRUE;
2793 }
2794 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2795 horz = TRUE;
2796
2797 if (!vert && horz && infoPtr->treeHeight
2798 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2799 vert = TRUE;
2800
2801 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2802
2803 si.cbSize = sizeof(SCROLLINFO);
2804 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2805 si.nMin = 0;
2806
2807 if (vert)
2808 {
2809 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2810 if ( si.nPage && NULL != infoPtr->firstVisible)
2811 {
2812 si.nPos = infoPtr->firstVisible->visibleOrder;
2813 si.nMax = infoPtr->maxVisibleOrder - 1;
2814
2815 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2816
2817 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2818 ShowScrollBar(hwnd, SB_VERT, TRUE);
2819 infoPtr->uInternalStatus |= TV_VSCROLL;
2820 }
2821 else
2822 {
2823 if (infoPtr->uInternalStatus & TV_VSCROLL)
2824 ShowScrollBar(hwnd, SB_VERT, FALSE);
2825 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2826 }
2827 }
2828 else
2829 {
2830 if (infoPtr->uInternalStatus & TV_VSCROLL)
2831 ShowScrollBar(hwnd, SB_VERT, FALSE);
2832 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2833 }
2834
2835 if (horz)
2836 {
2837 si.nPage = infoPtr->clientWidth;
2838 si.nPos = infoPtr->scrollX;
2839 si.nMax = infoPtr->treeWidth - 1;
2840
2841 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2842 {
2843 si.nPos = si.nMax - max( si.nPage-1, 0 );
2844 scrollX = si.nPos;
2845 }
2846
2847 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2848 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2849 infoPtr->uInternalStatus |= TV_HSCROLL;
2850
2851 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2852 TREEVIEW_HScroll(infoPtr,
2853 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2854 }
2855 else
2856 {
2857 if (infoPtr->uInternalStatus & TV_HSCROLL)
2858 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2859 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2860
2861 scrollX = 0;
2862 if (infoPtr->scrollX != 0)
2863 {
2864 TREEVIEW_HScroll(infoPtr,
2865 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2866 }
2867 }
2868
2869 if (!horz)
2870 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2871 }
2872
2873 static void
2874 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2875 {
2876 HBRUSH hBrush;
2877 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2878
2879 hBrush = CreateSolidBrush(clrBk);
2880 FillRect(hdc, rc, hBrush);
2881 DeleteObject(hBrush);
2882 }
2883
2884 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2885 static LRESULT
2886 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2887 {
2888 RECT rect;
2889
2890 TRACE("%p\n", infoPtr);
2891
2892 GetClientRect(infoPtr->hwnd, &rect);
2893 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2894
2895 return 1;
2896 }
2897
2898 static void
2899 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2900 {
2901 HWND hwnd = infoPtr->hwnd;
2902 RECT rect = *rc;
2903 TREEVIEW_ITEM *item;
2904 HTHEME theme;
2905
2906 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2907 {
2908 TRACE("empty window\n");
2909 return;
2910 }
2911
2912 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2913 hdc, rect);
2914
2915 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2916 {
2917 ReleaseDC(hwnd, hdc);
2918 return;
2919 }
2920
2921 if (infoPtr->dwStyle & TVS_HASBUTTONS && (theme = GetWindowTheme(infoPtr->hwnd)))
2922 {
2923 if (IsThemeBackgroundPartiallyTransparent(theme, TVP_GLYPH, 0))
2924 DrawThemeParentBackground(infoPtr->hwnd, hdc, NULL);
2925 }
2926
2927 for (item = infoPtr->root->firstChild;
2928 item != NULL;
2929 item = TREEVIEW_GetNextListItem(infoPtr, item))
2930 {
2931 if (ISVISIBLE(item))
2932 {
2933 /* Avoid unneeded calculations */
2934 if (item->rect.top > rect.bottom)
2935 break;
2936 if (item->rect.bottom < rect.top)
2937 continue;
2938
2939 TREEVIEW_DrawItem(infoPtr, hdc, item);
2940 }
2941 }
2942
2943 TREEVIEW_UpdateScrollBars(infoPtr);
2944
2945 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2946 infoPtr->cdmode =
2947 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2948 }
2949
2950 static inline void
2951 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2952 {
2953 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2954 }
2955
2956 static void
2957 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2958 {
2959 if (item)
2960 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2961 else
2962 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2963 }
2964
2965 static void
2966 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2967 {
2968 RECT rc;
2969 HBITMAP hbm, hbmOld;
2970 HDC hdc, hdcScreen;
2971 int nIndex;
2972
2973 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2974
2975 hdcScreen = GetDC(0);
2976
2977 hdc = CreateCompatibleDC(hdcScreen);
2978 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2979 hbmOld = SelectObject(hdc, hbm);
2980
2981 SetRect(&rc, 0, 0, 48, 16);
2982 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2983
2984 SetRect(&rc, 18, 2, 30, 14);
2985 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2986 DFCS_BUTTONCHECK|DFCS_FLAT);
2987
2988 SetRect(&rc, 34, 2, 46, 14);
2989 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2990 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2991
2992 SelectObject(hdc, hbmOld);
2993 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2994 comctl32_color.clrWindow);
2995 TRACE("checkbox index %d\n", nIndex);
2996
2997 DeleteObject(hbm);
2998 DeleteDC(hdc);
2999 ReleaseDC(0, hdcScreen);
3000
3001 infoPtr->stateImageWidth = 16;
3002 infoPtr->stateImageHeight = 16;
3003 }
3004
3005 static void
3006 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3007 {
3008 TREEVIEW_ITEM *child = item->firstChild;
3009
3010 item->state &= ~TVIS_STATEIMAGEMASK;
3011 item->state |= INDEXTOSTATEIMAGEMASK(1);
3012
3013 while (child)
3014 {
3015 TREEVIEW_ITEM *next = child->nextSibling;
3016 TREEVIEW_ResetImageStateIndex(infoPtr, child);
3017 child = next;
3018 }
3019 }
3020
3021 static LRESULT
3022 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
3023 {
3024 HDC hdc;
3025 PAINTSTRUCT ps;
3026 RECT rc;
3027
3028 TRACE("(%p %p)\n", infoPtr, hdc_ref);
3029
3030 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
3031 {
3032 TREEVIEW_InitCheckboxes(infoPtr);
3033 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3034
3035 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
3036 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3037 TREEVIEW_UpdateScrollBars(infoPtr);
3038 TREEVIEW_Invalidate(infoPtr, NULL);
3039 }
3040
3041 if (hdc_ref)
3042 {
3043 hdc = hdc_ref;
3044 GetClientRect(infoPtr->hwnd, &rc);
3045 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3046 }
3047 else
3048 {
3049 hdc = BeginPaint(infoPtr->hwnd, &ps);
3050 rc = ps.rcPaint;
3051 if(ps.fErase)
3052 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3053 }
3054
3055 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3056 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3057
3058 if (!hdc_ref)
3059 EndPaint(infoPtr->hwnd, &ps);
3060
3061 return 0;
3062 }
3063
3064 static LRESULT
3065 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3066 {
3067 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3068
3069 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3070 return 0;
3071
3072 if (options & PRF_ERASEBKGND)
3073 TREEVIEW_EraseBackground(infoPtr, hdc);
3074
3075 if (options & PRF_CLIENT)
3076 {
3077 RECT rc;
3078 GetClientRect(infoPtr->hwnd, &rc);
3079 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3080 }
3081
3082 return 0;
3083 }
3084
3085 /* Sorting **************************************************************/
3086
3087 /***************************************************************************
3088 * Forward the DPA local callback to the treeview owner callback
3089 */
3090 static INT WINAPI
3091 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3092 const TVSORTCB *pCallBackSort)
3093 {
3094 /* Forward the call to the client-defined callback */
3095 return pCallBackSort->lpfnCompare(first->lParam,
3096 second->lParam,
3097 pCallBackSort->lParam);
3098 }
3099
3100 /***************************************************************************
3101 * Treeview native sort routine: sort on item text.
3102 */
3103 static INT WINAPI
3104 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3105 const TREEVIEW_INFO *infoPtr)
3106 {
3107 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3108 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3109
3110 if(first->pszText && second->pszText)
3111 return lstrcmpiW(first->pszText, second->pszText);
3112 else if(first->pszText)
3113 return -1;
3114 else if(second->pszText)
3115 return 1;
3116 else
3117 return 0;
3118 }
3119
3120 /* Returns the number of physical children belonging to item. */
3121 static INT
3122 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3123 {
3124 INT cChildren = 0;
3125 HTREEITEM hti;
3126
3127 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3128 cChildren++;
3129
3130 return cChildren;
3131 }
3132
3133 /* Returns a DPA containing a pointer to each physical child of item in
3134 * sibling order. If item has no children, an empty DPA is returned. */
3135 static HDPA
3136 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3137 {
3138 HTREEITEM child;
3139
3140 HDPA list = DPA_Create(8);
3141 if (list == 0) return NULL;
3142
3143 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3144 {
3145 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3146 {
3147 DPA_Destroy(list);
3148 return NULL;
3149 }
3150 }
3151
3152 return list;
3153 }
3154
3155 /***************************************************************************
3156 * Setup the treeview structure with regards of the sort method
3157 * and sort the children of the TV item specified in lParam
3158 * fRecurse: currently unused. Should be zero.
3159 * parent: if pSort!=NULL, should equal pSort->hParent.
3160 * otherwise, item which child items are to be sorted.
3161 * pSort: sort method info. if NULL, sort on item text.
3162 * if non-NULL, sort on item's lParam content, and let the
3163 * application decide what that means. See also TVM_SORTCHILDRENCB.
3164 */
3165
3166 static LRESULT
3167 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3168 LPTVSORTCB pSort)
3169 {
3170 INT cChildren;
3171 PFNDPACOMPARE pfnCompare;
3172 LPARAM lpCompare;
3173
3174 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3175 if (parent == TVI_ROOT || parent == NULL)
3176 parent = infoPtr->root;
3177
3178 /* Check for a valid handle to the parent item */
3179 if (!TREEVIEW_ValidItem(infoPtr, parent))
3180 {
3181 ERR("invalid item hParent=%p\n", parent);
3182 return FALSE;
3183 }
3184
3185 if (pSort)
3186 {
3187 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3188 lpCompare = (LPARAM)pSort;
3189 }
3190 else
3191 {
3192 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3193 lpCompare = (LPARAM)infoPtr;
3194 }
3195
3196 cChildren = TREEVIEW_CountChildren(parent);
3197
3198 /* Make sure there is something to sort */
3199 if (cChildren > 1)
3200 {
3201 /* TREEVIEW_ITEM rechaining */
3202 INT count = 0;
3203 HTREEITEM item = 0;
3204 HTREEITEM nextItem = 0;
3205 HTREEITEM prevItem = 0;
3206
3207 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3208
3209 if (sortList == NULL)
3210 return FALSE;
3211
3212 /* let DPA sort the list */
3213 DPA_Sort(sortList, pfnCompare, lpCompare);
3214
3215 /* The order of DPA entries has been changed, so fixup the
3216 * nextSibling and prevSibling pointers. */
3217
3218 item = DPA_GetPtr(sortList, count++);
3219 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3220 {
3221 /* link the two current item together */
3222 item->nextSibling = nextItem;
3223 nextItem->prevSibling = item;
3224
3225 if (prevItem == NULL)
3226 {
3227 /* this is the first item, update the parent */
3228 parent->firstChild = item;
3229 item->prevSibling = NULL;
3230 }
3231 else
3232 {
3233 /* fix the back chaining */
3234 item->prevSibling = prevItem;
3235 }
3236
3237 /* get ready for the next one */
3238 prevItem = item;
3239 item = nextItem;
3240 }
3241
3242 /* the last item is pointed to by item and never has a sibling */
3243 item->nextSibling = NULL;
3244 parent->lastChild = item;
3245
3246 DPA_Destroy(sortList);
3247
3248 TREEVIEW_VerifyTree(infoPtr);
3249
3250 if (parent->state & TVIS_EXPANDED)
3251 {
3252 int visOrder = infoPtr->firstVisible->visibleOrder;
3253
3254 if (parent == infoPtr->root)
3255 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3256 else
3257 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3258
3259 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3260 {
3261 TREEVIEW_ITEM *item;
3262
3263 for (item = infoPtr->root->firstChild; item != NULL;
3264 item = TREEVIEW_GetNextListItem(infoPtr, item))
3265 {
3266 if (item->visibleOrder == visOrder)
3267 break;
3268 }
3269
3270 if (!item) item = parent->firstChild;
3271 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3272 }
3273
3274 TREEVIEW_Invalidate(infoPtr, NULL);
3275 }
3276
3277 return TRUE;
3278 }
3279 return FALSE;
3280 }
3281
3282
3283 /***************************************************************************
3284 * Setup the treeview structure with regards of the sort method
3285 * and sort the children of the TV item specified in lParam
3286 */
3287 static LRESULT
3288 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3289 {
3290 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3291 }
3292
3293
3294 /***************************************************************************
3295 * Sort the children of the TV item specified in lParam.
3296 */
3297 static LRESULT
3298 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3299 {
3300 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3301 }
3302
3303
3304 /* Expansion/Collapse ***************************************************/
3305
3306 static BOOL
3307 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3308 UINT action)
3309 {
3310 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3311 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3312 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3313 0, item);
3314 }
3315
3316 static VOID
3317 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3318 UINT action)
3319 {
3320 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3321 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3322 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3323 0, item);
3324 }
3325
3326
3327 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3328 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3329 static BOOL
3330 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3331 BOOL bRemoveChildren, BOOL bUser)
3332 {
3333 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3334 BOOL bSetSelection, bSetFirstVisible;
3335 RECT scrollRect;
3336 LONG scrollDist = 0;
3337 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3338 BOOL wasExpanded;
3339
3340 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3341
3342 if (!TREEVIEW_HasChildren(infoPtr, item))
3343 return FALSE;
3344
3345 if (bUser)
3346 TREEVIEW_SendExpanding(infoPtr, item, action);
3347
3348 if (item->firstChild == NULL)
3349 return FALSE;
3350
3351 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3352 item->state &= ~TVIS_EXPANDED;
3353
3354 if (wasExpanded && bUser)
3355 TREEVIEW_SendExpanded(infoPtr, item, action);
3356
3357 bSetSelection = (infoPtr->selectedItem != NULL
3358 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3359
3360 bSetFirstVisible = (infoPtr->firstVisible != NULL
3361 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3362
3363 tmpItem = item;
3364 while (tmpItem)
3365 {
3366 if (tmpItem->nextSibling)
3367 {
3368 nextItem = tmpItem->nextSibling;
3369 break;
3370 }
3371 tmpItem = tmpItem->parent;
3372 }
3373
3374 if (nextItem)
3375 scrollDist = nextItem->rect.top;
3376
3377 if (bRemoveChildren)
3378 {
3379 INT old_cChildren = item->cChildren;
3380 TRACE("TVE_COLLAPSERESET\n");
3381 item->state &= ~TVIS_EXPANDEDONCE;
3382 TREEVIEW_RemoveAllChildren(infoPtr, item);
3383 item->cChildren = old_cChildren;
3384 }
3385 if (!wasExpanded)
3386 return FALSE;
3387
3388 if (item->firstChild)
3389 {
3390 TREEVIEW_ITEM *i, *sibling;
3391
3392 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3393
3394 for (i = item->firstChild; i != sibling;
3395 i = TREEVIEW_GetNextListItem(infoPtr, i))
3396 {
3397 i->visibleOrder = -1;
3398 }
3399 }
3400
3401 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3402
3403 if (nextItem)
3404 scrollDist = -(scrollDist - nextItem->rect.top);
3405
3406 if (bSetSelection)
3407 {
3408 /* Don't call DoSelectItem, it sends notifications. */
3409 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3410 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3411 item->state |= TVIS_SELECTED;
3412 infoPtr->selectedItem = item;
3413 }
3414
3415 TREEVIEW_UpdateScrollBars(infoPtr);
3416
3417 scrollRect.left = 0;
3418 scrollRect.right = infoPtr->clientWidth;
3419 scrollRect.bottom = infoPtr->clientHeight;
3420
3421 if (nextItem)
3422 {
3423 scrollRect.top = nextItem->rect.top;
3424
3425 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3426 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3427 TREEVIEW_Invalidate(infoPtr, item);
3428 } else {
3429 scrollRect.top = item->rect.top;
3430 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3431 }
3432
3433 TREEVIEW_SetFirstVisible(infoPtr,
3434 bSetFirstVisible ? item : infoPtr->firstVisible,
3435 TRUE);
3436
3437 return wasExpanded;
3438 }
3439
3440 static BOOL
3441 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3442 BOOL partial, BOOL user)
3443 {
3444 LONG scrollDist;
3445 LONG orgNextTop = 0;
3446 RECT scrollRect;
3447 TREEVIEW_ITEM *nextItem, *tmpItem;
3448 BOOL sendsNotifications;
3449
3450 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3451
3452 if (!TREEVIEW_HasChildren(infoPtr, item))
3453 return FALSE;
3454
3455 tmpItem = item; nextItem = NULL;
3456 while (tmpItem)
3457 {
3458 if (tmpItem->nextSibling)
3459 {
3460 nextItem = tmpItem->nextSibling;
3461 break;
3462 }
3463 tmpItem = tmpItem->parent;
3464 }
3465
3466 if (nextItem)
3467 orgNextTop = nextItem->rect.top;
3468
3469 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3470
3471 sendsNotifications = user || ((item->cChildren != 0) &&
3472 !(item->state & TVIS_EXPANDEDONCE));
3473 if (sendsNotifications)
3474 {
3475 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3476 {
3477 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3478 return FALSE;
3479 }
3480 }
3481 if (!item->firstChild)
3482 return FALSE;
3483
3484 item->state |= TVIS_EXPANDED;
3485
3486 if (partial)
3487 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3488
3489 if (ISVISIBLE(item))
3490 {
3491 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3492 TREEVIEW_UpdateSubTree(infoPtr, item);
3493 TREEVIEW_UpdateScrollBars(infoPtr);
3494
3495 scrollRect.left = 0;
3496 scrollRect.bottom = infoPtr->treeHeight;
3497 scrollRect.right = infoPtr->clientWidth;
3498 if (nextItem)
3499 {
3500 scrollDist = nextItem->rect.top - orgNextTop;
3501 scrollRect.top = orgNextTop;
3502
3503 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3504 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3505 TREEVIEW_Invalidate (infoPtr, item);
3506 } else {
3507 scrollRect.top = item->rect.top;
3508 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3509 }
3510
3511 /* Scroll up so that as many children as possible are visible.
3512 * This fails when expanding causes an HScroll bar to appear, but we
3513 * don't know that yet, so the last item is obscured. */
3514 if (item->firstChild != NULL)
3515 {
3516 int nChildren = item->lastChild->visibleOrder
3517 - item->firstChild->visibleOrder + 1;
3518
3519 int visible_pos = item->visibleOrder
3520 - infoPtr->firstVisible->visibleOrder;
3521
3522 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3523
3524 if (visible_pos > 0 && nChildren > rows_below)
3525 {
3526 int scroll = nChildren - rows_below;
3527
3528 if (scroll > visible_pos)
3529 scroll = visible_pos;
3530
3531 if (scroll > 0)
3532 {
3533 TREEVIEW_ITEM *newFirstVisible
3534 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3535 scroll);
3536
3537
3538 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3539 }
3540 }
3541 }
3542 }
3543
3544 if (sendsNotifications) {
3545 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3546 item->state |= TVIS_EXPANDEDONCE;
3547 }
3548
3549 return TRUE;
3550 }
3551
3552 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3553 to mouse messages and TVM_SELECTITEM.
3554
3555 selection - previously selected item, used to collapse a part of a tree
3556 item - new selected item
3557 */
3558 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3559 HTREEITEM selection, HTREEITEM item)
3560 {
3561 TREEVIEW_ITEM *prev, *curr;
3562
3563 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3564
3565 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3566
3567 /*
3568 * Close the previous item and its ancestors as long as they are not
3569 * ancestors of the current item
3570 */
3571 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3572 {
3573 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3574 {
3575 if (curr == prev)
3576 goto finish;
3577 }
3578 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3579 }
3580
3581 finish:
3582 /*
3583 * Expand the current item
3584 */
3585 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3586 }
3587
3588 static BOOL
3589 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3590 {
3591 TRACE("item=%p, user=%d\n", item, user);
3592
3593 if (item->state & TVIS_EXPANDED)
3594 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3595 else
3596 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3597 }
3598
3599 static VOID
3600 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3601 {
3602 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3603
3604 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3605 {
3606 if (TREEVIEW_HasChildren(infoPtr, item))
3607 TREEVIEW_ExpandAll(infoPtr, item);
3608 }
3609 }
3610
3611 /* Note:If the specified item is the child of a collapsed parent item,
3612 the parent's list of child items is (recursively) expanded to reveal the
3613 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3614 know if it also applies here.
3615 */
3616
3617 static LRESULT
3618 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3619 {
3620 if (!TREEVIEW_ValidItem(infoPtr, item))
3621 return 0;
3622
3623 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3624 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3625 flag, item->state);
3626
3627 switch (flag & TVE_TOGGLE)
3628 {
3629 case TVE_COLLAPSE:
3630 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3631 FALSE);
3632
3633 case TVE_EXPAND:
3634 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3635 FALSE);
3636
3637 case TVE_TOGGLE:
3638 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3639
3640 default:
3641 return 0;
3642 }
3643 }
3644
3645 /* Hit-Testing **********************************************************/
3646
3647 static TREEVIEW_ITEM *
3648 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3649 {
3650 TREEVIEW_ITEM *item;
3651 LONG row;
3652
3653 if (!infoPtr->firstVisible)
3654 return NULL;
3655
3656 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3657
3658 for (item = infoPtr->firstVisible; item != NULL;
3659 item = TREEVIEW_GetNextListItem(infoPtr, item))
3660 {
3661 if (row >= item->visibleOrder
3662 && row < item->visibleOrder + item->iIntegral)
3663 break;
3664 }
3665
3666 return item;
3667 }
3668
3669 static TREEVIEW_ITEM *
3670 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3671 {
3672 TREEVIEW_ITEM *item;
3673 RECT rect;
3674 UINT status;
3675 LONG x, y;
3676
3677 lpht->hItem = 0;
3678 GetClientRect(infoPtr->hwnd, &rect);
3679 status = 0;
3680 x = lpht->pt.x;
3681 y = lpht->pt.y;
3682
3683 if (x < rect.left)
3684 {
3685 status |= TVHT_TOLEFT;
3686 }
3687 else if (x > rect.right)
3688 {
3689 status |= TVHT_TORIGHT;
3690 }
3691
3692 if (y < rect.top)
3693 {
3694 status |= TVHT_ABOVE;
3695 }
3696 else if (y > rect.bottom)
3697 {
3698 status |= TVHT_BELOW;
3699 }
3700
3701 if (status)
3702 {
3703 lpht->flags = status;
3704 return NULL;
3705 }
3706
3707 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3708 if (!item)
3709 {
3710 lpht->flags = TVHT_NOWHERE;
3711 return NULL;
3712 }
3713
3714 if (!item->textWidth)
3715 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
3716
3717 if (x >= item->textOffset + item->textWidth)
3718 {
3719 lpht->flags = TVHT_ONITEMRIGHT;
3720 }
3721 else if (x >= item->textOffset)
3722 {
3723 lpht->flags = TVHT_ONITEMLABEL;
3724 }
3725 else if (x >= item->imageOffset)
3726 {
3727 lpht->flags = TVHT_ONITEMICON;
3728 }
3729 else if (x >= item->stateOffset)
3730 {
3731 lpht->flags = TVHT_ONITEMSTATEICON;
3732 }
3733 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3734 {
3735 lpht->flags = TVHT_ONITEMBUTTON;
3736 }
3737 else
3738 {
3739 lpht->flags = TVHT_ONITEMINDENT;
3740 }
3741
3742 lpht->hItem = item;
3743 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3744
3745 return item;
3746 }
3747
3748 /* Item Label Editing ***************************************************/
3749
3750 static LRESULT
3751 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3752 {
3753 return (LRESULT)infoPtr->hwndEdit;
3754 }
3755
3756 static LRESULT CALLBACK
3757 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3758 {
3759 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3760 BOOL bCancel = FALSE;
3761 LRESULT rc;
3762
3763 switch (uMsg)
3764 {
3765 case WM_PAINT:
3766 TRACE("WM_PAINT start\n");
3767 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3768 lParam);
3769 TRACE("WM_PAINT done\n");
3770 return rc;
3771
3772 case WM_KILLFOCUS:
3773 if (infoPtr->bIgnoreEditKillFocus)
3774 return TRUE;
3775 break;
3776
3777 case WM_DESTROY:
3778 {
3779 WNDPROC editProc = infoPtr->wpEditOrig;
3780 infoPtr->wpEditOrig = 0;
3781 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3782 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3783 }
3784
3785 case WM_GETDLGCODE:
3786 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3787
3788 case WM_KEYDOWN:
3789 if (wParam == VK_ESCAPE)
3790 {
3791 bCancel = TRUE;
3792 break;
3793 }
3794 else if (wParam == VK_RETURN)
3795 {
3796 break;
3797 }
3798
3799 /* fall through */
3800 default:
3801 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3802 }
3803
3804 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3805 /* eg. Using a messagebox */
3806
3807 infoPtr->bIgnoreEditKillFocus = TRUE;
3808 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3809 infoPtr->bIgnoreEditKillFocus = FALSE;
3810
3811 return 0;
3812 }
3813
3814
3815 /* should handle edit control messages here */
3816
3817 static LRESULT
3818 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3819 {
3820 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3821
3822 switch (HIWORD(wParam))
3823 {
3824 case EN_UPDATE:
3825 {
3826 /*
3827 * Adjust the edit window size
3828 */
3829 WCHAR buffer[1024];
3830 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3831 HDC hdc = GetDC(infoPtr->hwndEdit);
3832 SIZE sz;
3833 HFONT hFont, hOldFont = 0;
3834
3835 TRACE("edit=%p\n", infoPtr->hwndEdit);
3836
3837 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3838
3839 infoPtr->bLabelChanged = TRUE;
3840
3841 GetWindowTextW(infoPtr->hwndEdit, buffer, ARRAY_SIZE(buffer));
3842
3843 /* Select font to get the right dimension of the string */
3844 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3845
3846 if (hFont != 0)
3847 {
3848 hOldFont = SelectObject(hdc, hFont);
3849 }
3850
3851 if (GetTextExtentPoint32W(hdc, buffer, lstrlenW(buffer), &sz))
3852 {
3853 TEXTMETRICW textMetric;
3854
3855 /* Add Extra spacing for the next character */
3856 GetTextMetricsW(hdc, &textMetric);
3857 sz.cx += (textMetric.tmMaxCharWidth * 2);
3858
3859 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3860 sz.cx = min(sz.cx,
3861 infoPtr->clientWidth - editItem->textOffset + 2);
3862
3863 SetWindowPos(infoPtr->hwndEdit,
3864 HWND_TOP,
3865 0,
3866 0,
3867 sz.cx,
3868 editItem->rect.bottom - editItem->rect.top + 3,
3869 SWP_NOMOVE | SWP_DRAWFRAME);
3870 }
3871
3872 if (hFont != 0)
3873 {
3874 SelectObject(hdc, hOldFont);
3875 }
3876
3877 ReleaseDC(infoPtr->hwnd, hdc);
3878 break;
3879 }
3880 case EN_KILLFOCUS:
3881 /* apparently we should respect passed handle value */
3882 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3883
3884 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3885 break;
3886
3887 default:
3888 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3889 }
3890
3891 return 0;
3892 }
3893
3894 static HWND
3895 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3896 {
3897 HWND hwnd = infoPtr->hwnd;
3898 HWND hwndEdit;
3899 SIZE sz;
3900 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3901 HDC hdc;
3902 HFONT hOldFont=0;
3903 TEXTMETRICW textMetric;
3904
3905 TRACE("%p %p\n", hwnd, hItem);
3906 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3907 return NULL;
3908
3909 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3910 return NULL;
3911
3912 if (infoPtr->hwndEdit)
3913 return infoPtr->hwndEdit;
3914
3915 infoPtr->bLabelChanged = FALSE;
3916
3917 /* make edit item visible */
3918 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3919
3920 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3921
3922 hdc = GetDC(hwnd);
3923 /* Select the font to get appropriate metric dimensions */
3924 if (infoPtr->hFont != 0)
3925 {
3926 hOldFont = SelectObject(hdc, infoPtr->hFont);
3927 }
3928
3929 /* Get string length in pixels */
3930 if (hItem->pszText)
3931 GetTextExtentPoint32W(hdc, hItem->pszText, lstrlenW(hItem->pszText),
3932 &sz);
3933 else
3934 GetTextExtentPoint32A(hdc, "", 0, &sz);
3935
3936 /* Add Extra spacing for the next character */
3937 GetTextMetricsW(hdc, &textMetric);
3938 sz.cx += (textMetric.tmMaxCharWidth * 2);
3939
3940 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3941 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3942
3943 if (infoPtr->hFont != 0)
3944 {
3945 SelectObject(hdc, hOldFont);
3946 }
3947
3948 ReleaseDC(hwnd, hdc);
3949
3950 infoPtr->editItem = hItem;
3951
3952 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3953 WC_EDITW,
3954 0,
3955 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3956 WS_CLIPSIBLINGS | ES_WANTRETURN |
3957 ES_LEFT, hItem->textOffset - 2,
3958 hItem->rect.top - 1, sz.cx + 3,
3959 hItem->rect.bottom -
3960 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3961 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3962
3963 infoPtr->hwndEdit = hwndEdit;
3964
3965 /* Get a 2D border. */
3966 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3967 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3968 SetWindowLongW(hwndEdit, GWL_STYLE,
3969 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3970
3971 SendMessageW(hwndEdit, WM_SETFONT,
3972 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3973
3974 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3975 (DWORD_PTR)
3976 TREEVIEW_Edit_SubclassProc);
3977 SendMessageW(hwndEdit, EM_SETLIMITTEXT, MAX_PATH - 1, 0);
3978 if (hItem->pszText)
3979 SetWindowTextW(hwndEdit, hItem->pszText);
3980
3981 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3982 {
3983 DestroyWindow(hwndEdit);
3984 infoPtr->hwndEdit = 0;
3985 infoPtr->editItem = NULL;
3986 return NULL;
3987 }
3988
3989 SetFocus(hwndEdit);
3990 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3991 ShowWindow(hwndEdit, SW_SHOW);
3992
3993 return hwndEdit;
3994 }
3995
3996
3997 static LRESULT
3998 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3999 {
4000 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
4001 NMTVDISPINFOW tvdi;
4002 BOOL bCommit;
4003 WCHAR tmpText[MAX_PATH] = { '\0' };
4004 WCHAR *newText;
4005 int iLength = 0;
4006
4007 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
4008
4009 tvdi.item.mask = 0;
4010 tvdi.item.hItem = editedItem;
4011 tvdi.item.state = editedItem->state;
4012 tvdi.item.lParam = editedItem->lParam;
4013
4014 if (!bCancel)
4015 {
4016 if (!infoPtr->bNtfUnicode)
4017 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, ARRAY_SIZE(tmpText));
4018 else
4019 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, ARRAY_SIZE(tmpText));
4020
4021 tvdi.item.mask = TVIF_TEXT;
4022 tvdi.item.pszText = tmpText;
4023 tvdi.item.cchTextMax = ARRAY_SIZE(tmpText);
4024 }
4025 else
4026 {
4027 tvdi.item.pszText = NULL;
4028 tvdi.item.cchTextMax = 0;
4029 }
4030
4031 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4032
4033 if (!bCancel && bCommit) /* Apply the changes */
4034 {
4035 if (!infoPtr->bNtfUnicode)
4036 {
4037 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, NULL, 0 );
4038 newText = heap_alloc(len * sizeof(WCHAR));
4039 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, newText, len );
4040 iLength = len - 1;
4041 }
4042 else
4043 newText = tvdi.item.pszText;
4044
4045 if (lstrcmpW(newText, editedItem->pszText) != 0)
4046 {
4047 WCHAR *ptr = heap_realloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4048 if (ptr == NULL)
4049 {
4050 ERR("OutOfMemory, cannot allocate space for label\n");
4051 if (newText != tmpText) heap_free(newText);
4052 DestroyWindow(infoPtr->hwndEdit);
4053 infoPtr->hwndEdit = 0;
4054 infoPtr->editItem = NULL;
4055 return FALSE;
4056 }
4057 else
4058 {
4059 editedItem->pszText = ptr;
4060 editedItem->cchTextMax = iLength + 1;
4061 lstrcpyW(editedItem->pszText, newText);
4062 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4063 }
4064 }
4065 if (newText != tmpText) heap_free(newText);
4066 }
4067
4068 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4069 DestroyWindow(infoPtr->hwndEdit);
4070 infoPtr->hwndEdit = 0;
4071 infoPtr->editItem = NULL;
4072 return TRUE;
4073 }
4074
4075 static LRESULT
4076 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4077 {
4078 if (wParam != TV_EDIT_TIMER)
4079 {
4080 ERR("got unknown timer\n");
4081 return 1;
4082 }
4083
4084 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4085 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4086
4087 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4088
4089 return 0;
4090 }
4091
4092
4093 /* Mouse Tracking/Drag **************************************************/
4094
4095 /***************************************************************************
4096 * This is quite unusual piece of code, but that's how it's implemented in
4097 * Windows.
4098 */
4099 static LRESULT
4100 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4101 {
4102 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4103 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4104 RECT r;
4105 MSG msg;
4106
4107 r.top = pt.y - cyDrag;
4108 r.left = pt.x - cxDrag;
4109 r.bottom = pt.y + cyDrag;
4110 r.right = pt.x + cxDrag;
4111
4112 SetCapture(infoPtr->hwnd);
4113
4114 while (1)
4115 {
4116 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4117 {
4118 if (msg.message == WM_MOUSEMOVE)
4119 {
4120 pt.x = (short)LOWORD(msg.lParam);
4121 pt.y = (short)HIWORD(msg.lParam);
4122 if (PtInRect(&r, pt))
4123 continue;
4124 else
4125 {
4126 ReleaseCapture();
4127 return 1;
4128 }
4129 }
4130 else if (msg.message >= WM_LBUTTONDOWN &&
4131 msg.message <= WM_RBUTTONDBLCLK)
4132 {
4133 break;
4134 }
4135
4136 DispatchMessageW(&msg);
4137 }
4138
4139 if (GetCapture() != infoPtr->hwnd)
4140 return 0;
4141 }
4142
4143 ReleaseCapture();
4144 return 0;
4145 }
4146
4147
4148 static LRESULT
4149 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4150 {
4151 TREEVIEW_ITEM *item;
4152 TVHITTESTINFO hit;
4153
4154 TRACE("\n");
4155 SetFocus(infoPtr->hwnd);
4156
4157 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4158 {
4159 /* If there is pending 'edit label' event - kill it now */
4160 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4161 }
4162
4163 hit.pt.x = (short)LOWORD(lParam);
4164 hit.pt.y = (short)HIWORD(lParam);
4165
4166 item = TREEVIEW_HitTest(infoPtr, &hit);
4167 if (!item)
4168 return 0;
4169 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4170
4171 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4172 { /* FIXME! */
4173 switch (hit.flags)
4174 {
4175 case TVHT_ONITEMRIGHT:
4176 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4177 break;
4178
4179 case TVHT_ONITEMINDENT:
4180 if (!(infoPtr->dwStyle & TVS_HASLINES))
4181 {
4182 break;
4183 }
4184 else
4185 {
4186 int level = hit.pt.x / infoPtr->uIndent;
4187 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4188
4189 while (item->iLevel > level)
4190 {
4191 item = item->parent;
4192 }
4193
4194 /* fall through */
4195 }
4196
4197 case TVHT_ONITEMLABEL:
4198 case TVHT_ONITEMICON:
4199 case TVHT_ONITEMBUTTON:
4200 TREEVIEW_Toggle(infoPtr, item, TRUE);
4201 break;
4202
4203 case TVHT_ONITEMSTATEICON:
4204 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4205 TREEVIEW_ToggleItemState(infoPtr, item);
4206 else
4207 TREEVIEW_Toggle(infoPtr, item, TRUE);
4208 break;
4209 }
4210 }
4211 return TRUE;
4212 }
4213
4214
4215 static LRESULT
4216 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4217 {
4218 BOOL do_track, do_select, bDoLabelEdit;
4219 HWND hwnd = infoPtr->hwnd;
4220 TVHITTESTINFO ht;
4221
4222 /* If Edit control is active - kill it and return.
4223 * The best way to do it is to set focus to itself.
4224 * Edit control subclassed procedure will automatically call
4225 * EndEditLabelNow.
4226 */
4227 if (infoPtr->hwndEdit)
4228 {
4229 SetFocus(hwnd);
4230 return 0;
4231 }
4232
4233 ht.pt.x = (short)LOWORD(lParam);
4234 ht.pt.y = (short)HIWORD(lParam);
4235
4236 TREEVIEW_HitTest(infoPtr, &ht);
4237 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4238
4239 /* update focusedItem and redraw both items */
4240 if (ht.hItem)
4241 {
4242 BOOL do_focus;
4243
4244 if (TREEVIEW_IsFullRowSelect(infoPtr))
4245 do_focus = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4246 else
4247 do_focus = ht.flags & TVHT_ONITEM;
4248
4249 if (do_focus)
4250 {
4251 infoPtr->focusedItem = ht.hItem;
4252 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4253 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4254 }
4255 }
4256
4257 if (!(infoPtr->dwStyle & TVS_DISABLEDRAGDROP))
4258 {
4259 if (TREEVIEW_IsFullRowSelect(infoPtr))
4260 do_track = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4261 else
4262 do_track = ht.flags & TVHT_ONITEM;
4263 }
4264 else
4265 do_track = FALSE;
4266
4267 /*
4268 * If the style allows editing and the node is already selected
4269 * and the click occurred on the item label...
4270 */
4271 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4272 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4273
4274 /* Send NM_CLICK right away */
4275 if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4276 goto setfocus;
4277
4278 if (ht.flags & TVHT_ONITEMBUTTON)
4279 {
4280 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4281 goto setfocus;
4282 }
4283 else if (do_track)
4284 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4285 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4286 {
4287 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4288 infoPtr->dropItem = ht.hItem;
4289
4290 /* clean up focusedItem as we dragged and won't select this item */
4291 if(infoPtr->focusedItem)
4292 {
4293 /* refresh the item that was focused */
4294 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4295 infoPtr->focusedItem = NULL;
4296
4297 /* refresh the selected item to return the filled background */
4298 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4299 }
4300
4301 return 0;
4302 }
4303 }
4304
4305 if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4306 goto setfocus;
4307
4308 if (TREEVIEW_IsFullRowSelect(infoPtr))
4309 do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT);
4310 else
4311 do_select = ht.flags & (TVHT_ONITEMICON | TVHT_ONITEMLABEL);
4312
4313 if (bDoLabelEdit)
4314 {
4315 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4316 KillTimer(hwnd, TV_EDIT_TIMER);
4317
4318 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4319 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4320 }
4321 else if (do_select)
4322 {
4323 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4324
4325 /* Select the current item */
4326 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4327 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4328 }
4329 else if (ht.flags & TVHT_ONITEMSTATEICON)
4330 {
4331 /* TVS_CHECKBOXES requires us to toggle the current state */
4332 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4333 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4334 }
4335
4336 setfocus:
4337 SetFocus(hwnd);
4338 return 0;
4339 }
4340
4341
4342 static LRESULT
4343 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4344 {
4345 TVHITTESTINFO ht;
4346
4347 if (infoPtr->hwndEdit)
4348 {
4349 SetFocus(infoPtr->hwnd);
4350 return 0;
4351 }
4352
4353 ht.pt.x = (short)LOWORD(lParam);
4354 ht.pt.y = (short)HIWORD(lParam);
4355
4356 if (TREEVIEW_HitTest(infoPtr, &ht))
4357 {
4358 infoPtr->focusedItem = ht.hItem;
4359 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4360 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4361 }
4362
4363 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4364 {
4365 if (ht.hItem)
4366 {
4367 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4368 infoPtr->dropItem = ht.hItem;
4369 }
4370 }
4371 else
4372 {
4373 SetFocus(infoPtr->hwnd);
4374 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4375 {
4376 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4377 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4378 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4379 }
4380 }
4381
4382 if (ht.hItem)
4383 {
4384 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4385 infoPtr->focusedItem = infoPtr->selectedItem;
4386 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4387 }
4388
4389 return 0;
4390 }
4391
4392 static LRESULT
4393 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4394 {
4395 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4396 INT cx, cy;
4397 HDC hdc, htopdc;
4398 HWND hwtop;
4399 HBITMAP hbmp, hOldbmp;
4400 SIZE size;
4401 RECT rc;
4402 HFONT hOldFont;
4403
4404 TRACE("\n");
4405
4406 if (!(infoPtr->himlNormal))
4407 return 0;
4408
4409 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4410 return 0;
4411
4412 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4413
4414 hwtop = GetDesktopWindow();
4415 htopdc = GetDC(hwtop);
4416 hdc = CreateCompatibleDC(htopdc);
4417
4418 hOldFont = SelectObject(hdc, infoPtr->hFont);
4419
4420 if (dragItem->pszText)
4421 GetTextExtentPoint32W(hdc, dragItem->pszText, lstrlenW(dragItem->pszText),
4422 &size);
4423 else
4424 GetTextExtentPoint32A(hdc, "", 0, &size);
4425
4426 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4427 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4428 hOldbmp = SelectObject(hdc, hbmp);
4429
4430 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4431 size.cx += cx;
4432 if (cy > size.cy)
4433 size.cy = cy;
4434
4435 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4436 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4437 ILD_NORMAL);
4438
4439 /*
4440 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4441 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4442 */
4443
4444 /* draw item text */
4445
4446 SetRect(&rc, cx, 0, size.cx, size.cy);
4447
4448 if (dragItem->pszText)
4449 DrawTextW(hdc, dragItem->pszText, lstrlenW(dragItem->pszText), &rc,
4450 DT_LEFT);
4451
4452 SelectObject(hdc, hOldFont);
4453 SelectObject(hdc, hOldbmp);
4454
4455 ImageList_Add(infoPtr->dragList, hbmp, 0);
4456
4457 DeleteDC(hdc);
4458 DeleteObject(hbmp);
4459 ReleaseDC(hwtop, htopdc);
4460
4461 return (LRESULT)infoPtr->dragList;
4462 }
4463
4464 /* Selection ************************************************************/
4465
4466 static LRESULT
4467 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4468 INT cause)
4469 {
4470 TREEVIEW_ITEM *prevSelect;
4471
4472 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4473
4474 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state 0x%x\n",
4475 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4476 newSelect ? newSelect->state : 0);
4477
4478 /* reset and redraw focusedItem if focusedItem was set so we don't */
4479 /* have to worry about the previously focused item when we set a new one */
4480 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4481 infoPtr->focusedItem = NULL;
4482
4483 switch (action)
4484 {
4485 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4486 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4487 /* Fall through */
4488 case TVGN_CARET:
4489 prevSelect = infoPtr->selectedItem;
4490
4491 if (prevSelect == newSelect) {
4492 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4493 break;
4494 }
4495
4496 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4497 TVN_SELCHANGINGW,
4498 cause,
4499 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4500 prevSelect,
4501 newSelect))
4502 return FALSE;
4503
4504 if (prevSelect)
4505 prevSelect->state &= ~TVIS_SELECTED;
4506 if (newSelect)
4507 newSelect->state |= TVIS_SELECTED;
4508
4509 infoPtr->selectedItem = newSelect;
4510
4511 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4512
4513 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4514 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4515
4516 TREEVIEW_SendTreeviewNotify(infoPtr,
4517 TVN_SELCHANGEDW,
4518 cause,
4519 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4520 prevSelect,
4521 newSelect);
4522 break;
4523
4524 case TVGN_DROPHILITE:
4525 prevSelect = infoPtr->dropItem;
4526
4527 if (prevSelect)
4528 prevSelect->state &= ~TVIS_DROPHILITED;
4529
4530 infoPtr->dropItem = newSelect;
4531
4532 if (newSelect)
4533 newSelect->state |= TVIS_DROPHILITED;
4534
4535 TREEVIEW_Invalidate(infoPtr, prevSelect);
4536 TREEVIEW_Invalidate(infoPtr, newSelect);
4537 break;
4538
4539 case TVGN_FIRSTVISIBLE:
4540 if (newSelect != NULL)
4541 {
4542 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4543 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4544 TREEVIEW_Invalidate(infoPtr, NULL);
4545 }
4546 break;
4547 }
4548
4549 TRACE("Leaving state 0x%x\n", newSelect ? newSelect->state : 0);
4550 return TRUE;
4551 }
4552
4553 /* FIXME: handle NM_KILLFOCUS etc */
4554 static LRESULT
4555 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4556 {
4557 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4558
4559 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4560 return FALSE;
4561
4562 if (item == infoPtr->selectedItem)
4563 return TRUE;
4564
4565 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4566
4567 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4568 return FALSE;
4569
4570 TREEVIEW_SingleExpand(infoPtr, selection, item);
4571
4572 return TRUE;
4573 }
4574
4575 /*************************************************************************
4576 * TREEVIEW_ProcessLetterKeys
4577 *
4578 * Processes keyboard messages generated by pressing the letter keys
4579 * on the keyboard.
4580 * What this does is perform a case insensitive search from the
4581 * current position with the following quirks:
4582 * - If two chars or more are pressed in quick succession we search
4583 * for the corresponding string (e.g. 'abc').
4584 * - If there is a delay we wipe away the current search string and
4585 * restart with just that char.
4586 * - If the user keeps pressing the same character, whether slowly or
4587 * fast, so that the search string is entirely composed of this
4588 * character ('aaaaa' for instance), then we search for first item
4589 * that starting with that character.
4590 * - If the user types the above character in quick succession, then
4591 * we must also search for the corresponding string ('aaaaa'), and
4592 * go to that string if there is a match.
4593 *
4594 * RETURNS
4595 *
4596 * Zero.
4597 *
4598 * BUGS
4599 *
4600 * - The current implementation has a list of characters it will
4601 * accept and it ignores everything else. In particular it will
4602 * ignore accentuated characters which seems to match what
4603 * Windows does. But I'm not sure it makes sense to follow
4604 * Windows there.
4605 * - We don't sound a beep when the search fails.
4606 * - The search should start from the focused item, not from the selected
4607 * item. One reason for this is to allow for multiple selections in trees.
4608 * But currently infoPtr->focusedItem does not seem very usable.
4609 *
4610 * SEE ALSO
4611 *
4612 * TREEVIEW_ProcessLetterKeys
4613 */
4614 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4615 {
4616 HTREEITEM nItem;
4617 HTREEITEM endidx,idx;
4618 TVITEMEXW item;
4619 WCHAR buffer[MAX_PATH];
4620 DWORD timestamp,elapsed;
4621
4622 /* simple parameter checking */
4623 if (!charCode || !keyData) return 0;
4624
4625 /* only allow the valid WM_CHARs through */
4626 if (!isalnum(charCode) &&
4627 charCode != '.' && charCode != '`' && charCode != '!' &&
4628 charCode != '@' && charCode != '#' && charCode != '$' &&
4629 charCode != '%' && charCode != '^' && charCode != '&' &&
4630 charCode != '*' && charCode != '(' && charCode != ')' &&
4631 charCode != '-' && charCode != '_' && charCode != '+' &&
4632 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4633 charCode != '}' && charCode != '[' && charCode != '{' &&
4634 charCode != '/' && charCode != '?' && charCode != '>' &&
4635 charCode != '<' && charCode != ',' && charCode != '~')
4636 return 0;
4637
4638 /* compute how much time elapsed since last keypress */
4639 timestamp = GetTickCount();
4640 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4641 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4642 } else {
4643 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4644 }
4645
4646 /* update the search parameters */
4647 infoPtr->lastKeyPressTimestamp=timestamp;
4648 if (elapsed < KEY_DELAY) {
4649 if (infoPtr->nSearchParamLength < ARRAY_SIZE(infoPtr->szSearchParam)) {
4650 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4651 }
4652 if (infoPtr->charCode != charCode) {
4653 infoPtr->charCode=charCode=0;
4654 }
4655 } else {
4656 infoPtr->charCode=charCode;
4657 infoPtr->szSearchParam[0]=charCode;
4658 infoPtr->nSearchParamLength=1;
4659 /* Redundant with the 1 char string */
4660 charCode=0;
4661 }
4662
4663 /* and search from the current position */
4664 nItem=NULL;
4665 if (infoPtr->selectedItem != NULL) {
4666 endidx=infoPtr->selectedItem;
4667 /* if looking for single character match,
4668 * then we must always move forward
4669 */
4670 if (infoPtr->nSearchParamLength == 1)
4671 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4672 else
4673 idx=endidx;
4674 } else {
4675 endidx=NULL;
4676 idx=infoPtr->root->firstChild;
4677 }
4678 do {
4679 /* At the end point, sort out wrapping */
4680 if (idx == NULL) {
4681
4682 /* If endidx is null, stop at the last item (ie top to bottom) */
4683 if (endidx == NULL)
4684 break;
4685
4686 /* Otherwise, start again at the very beginning */
4687 idx=infoPtr->root->firstChild;
4688
4689 /* But if we are stopping on the first child, end now! */
4690 if (idx == endidx) break;
4691 }
4692
4693 /* get item */
4694 ZeroMemory(&item, sizeof(item));
4695 item.mask = TVIF_TEXT;
4696 item.hItem = idx;
4697 item.pszText = buffer;
4698 item.cchTextMax = ARRAY_SIZE(buffer);
4699 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4700
4701 /* check for a match */
4702 if (wcsnicmp(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4703 nItem=idx;
4704 break;
4705 } else if ( (charCode != 0) && (nItem == NULL) &&
4706 (nItem != infoPtr->selectedItem) &&
4707 (wcsnicmp(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4708 /* This would work but we must keep looking for a longer match */
4709 nItem=idx;
4710 }
4711 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4712 } while (idx != endidx);
4713
4714 if (nItem != NULL) {
4715 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4716 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4717 }
4718 }
4719
4720 return 0;
4721 }
4722
4723 /* Scrolling ************************************************************/
4724
4725 static LRESULT
4726 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4727 {
4728 int viscount;
4729 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4730 HTREEITEM newFirstVisible = NULL;
4731 int visible_pos = -1;
4732
4733 if (!TREEVIEW_ValidItem(infoPtr, item))
4734 return FALSE;
4735
4736 if (!ISVISIBLE(item))
4737 {
4738 /* Expand parents as necessary. */
4739 HTREEITEM parent;
4740
4741 /* see if we are trying to ensure that root is visible */
4742 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4743 parent = item->parent;
4744 else
4745 parent = item; /* this item is the topmost item */
4746
4747 while (parent != infoPtr->root)
4748 {
4749 if (!(parent->state & TVIS_EXPANDED))
4750 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4751
4752 parent = parent->parent;
4753 }
4754 }
4755
4756 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4757
4758 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4759 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4760
4761 if (hasFirstVisible)
4762 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4763
4764 if (visible_pos < 0)
4765 {
4766 /* item is before the start of the list: put it at the top. */
4767 newFirstVisible = item;
4768 }
4769 else if (visible_pos >= viscount
4770 /* Sometimes, before we are displayed, GVC is 0, causing us to
4771 * spuriously scroll up. */
4772 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4773 {
4774 /* item is past the end of the list. */
4775 int scroll = visible_pos - viscount;
4776
4777 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4778 scroll + 1);
4779 }
4780
4781 if (bHScroll)
4782 {
4783 /* Scroll window so item's text is visible as much as possible */
4784 /* Calculation of amount of extra space is taken from EditLabel code */
4785 INT pos, x;
4786 TEXTMETRICW textMetric;
4787 HDC hdc = GetWindowDC(infoPtr->hwnd);
4788
4789 x = item->textWidth;
4790
4791 GetTextMetricsW(hdc, &textMetric);
4792 ReleaseDC(infoPtr->hwnd, hdc);
4793
4794 x += (textMetric.tmMaxCharWidth * 2);
4795 x = max(x, textMetric.tmMaxCharWidth * 3);
4796
4797 if (item->textOffset < 0)
4798 pos = item->textOffset;
4799 else if (item->textOffset + x > infoPtr->clientWidth)
4800 {
4801 if (x > infoPtr->clientWidth)
4802 pos = item->textOffset;
4803 else
4804 pos = item->textOffset + x - infoPtr->clientWidth;
4805 }
4806 else
4807 pos = 0;
4808
4809 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4810 }
4811
4812 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4813 {
4814 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4815
4816 return TRUE;
4817 }
4818
4819 return FALSE;
4820 }
4821
4822 static VOID
4823 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4824 TREEVIEW_ITEM *newFirstVisible,
4825 BOOL bUpdateScrollPos)
4826 {
4827 int gap_size;
4828
4829 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4830
4831 if (newFirstVisible != NULL)
4832 {
4833 /* Prevent an empty gap from appearing at the bottom... */
4834 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4835 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4836
4837 if (gap_size > 0)
4838 {
4839 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4840 -gap_size);
4841
4842 /* ... unless we just don't have enough items. */
4843 if (newFirstVisible == NULL)
4844 newFirstVisible = infoPtr->root->firstChild;
4845 }
4846 }
4847
4848 if (infoPtr->firstVisible != newFirstVisible)
4849 {
4850 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4851 {
4852 infoPtr->firstVisible = newFirstVisible;
4853 TREEVIEW_Invalidate(infoPtr, NULL);
4854 }
4855 else
4856 {
4857 TREEVIEW_ITEM *item;
4858 int scroll = infoPtr->uItemHeight *
4859 (infoPtr->firstVisible->visibleOrder
4860 - newFirstVisible->visibleOrder);
4861
4862 infoPtr->firstVisible = newFirstVisible;
4863
4864 for (item = infoPtr->root->firstChild; item != NULL;
4865 item = TREEVIEW_GetNextListItem(infoPtr, item))
4866 {
4867 item->rect.top += scroll;
4868 item->rect.bottom += scroll;
4869 }
4870
4871 if (bUpdateScrollPos)
4872 SetScrollPos(infoPtr->hwnd, SB_VERT,
4873 newFirstVisible->visibleOrder, TRUE);
4874
4875 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4876 }
4877 }
4878 }
4879
4880 /************************************************************************
4881 * VScroll is always in units of visible items. i.e. we always have a
4882 * visible item aligned to the top of the control. (Unless we have no
4883 * items at all.)
4884 */
4885 static LRESULT
4886 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4887 {
4888 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4889 TREEVIEW_ITEM *newFirstVisible = NULL;
4890
4891 int nScrollCode = LOWORD(wParam);
4892
4893 TRACE("wp %lx\n", wParam);
4894
4895 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4896 return 0;
4897
4898 if (!oldFirstVisible)
4899 {
4900 assert(infoPtr->root->firstChild == NULL);
4901 return 0;
4902 }
4903
4904 switch (nScrollCode)
4905 {
4906 case SB_TOP:
4907 newFirstVisible = infoPtr->root->firstChild;
4908 break;
4909
4910 case SB_BOTTOM:
4911 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4912 break;
4913
4914 case SB_LINEUP:
4915 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4916 break;
4917
4918 case SB_LINEDOWN:
4919 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4920 break;
4921
4922 case SB_PAGEUP:
4923 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4924 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4925 break;
4926
4927 case SB_PAGEDOWN:
4928 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4929 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4930 break;
4931
4932 case SB_THUMBTRACK:
4933 case SB_THUMBPOSITION:
4934 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4935 infoPtr->root->firstChild,
4936 (LONG)(SHORT)HIWORD(wParam));
4937 break;
4938
4939 case SB_ENDSCROLL:
4940 return 0;
4941 }
4942
4943 if (newFirstVisible != NULL)
4944 {
4945 if (newFirstVisible != oldFirstVisible)
4946 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4947 nScrollCode != SB_THUMBTRACK);
4948 else if (nScrollCode == SB_THUMBPOSITION)
4949 SetScrollPos(infoPtr->hwnd, SB_VERT,
4950 newFirstVisible->visibleOrder, TRUE);
4951 }
4952
4953 return 0;
4954 }
4955
4956 static LRESULT
4957 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4958 {
4959 int maxWidth;
4960 int scrollX = infoPtr->scrollX;
4961 int nScrollCode = LOWORD(wParam);
4962
4963 TRACE("wp %lx\n", wParam);
4964
4965 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4966 return FALSE;
4967
4968 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4969 /* shall never occur */
4970 if (maxWidth <= 0)
4971 {
4972 scrollX = 0;
4973 goto scroll;
4974 }
4975
4976 switch (nScrollCode)
4977 {
4978 case SB_LINELEFT:
4979 scrollX -= infoPtr->uItemHeight;
4980 break;
4981 case SB_LINERIGHT:
4982 scrollX += infoPtr->uItemHeight;
4983 break;
4984 case SB_PAGELEFT:
4985 scrollX -= infoPtr->clientWidth;
4986 break;
4987 case SB_PAGERIGHT:
4988 scrollX += infoPtr->clientWidth;
4989 break;
4990
4991 case SB_THUMBTRACK:
4992 case SB_THUMBPOSITION:
4993 scrollX = (int)(SHORT)HIWORD(wParam);
4994 break;
4995
4996 case SB_ENDSCROLL:
4997 return 0;
4998 }
4999
5000 if (scrollX > maxWidth)
5001 scrollX = maxWidth;
5002 else if (scrollX < 0)
5003 scrollX = 0;
5004
5005 scroll:
5006 if (scrollX != infoPtr->scrollX)
5007 {
5008 TREEVIEW_ITEM *item;
5009 LONG scroll_pixels = infoPtr->scrollX - scrollX;
5010
5011 for (item = infoPtr->root->firstChild; item != NULL;
5012 item = TREEVIEW_GetNextListItem(infoPtr, item))
5013 {
5014 item->linesOffset += scroll_pixels;
5015 item->stateOffset += scroll_pixels;
5016 item->imageOffset += scroll_pixels;
5017 item->textOffset += scroll_pixels;
5018 }
5019
5020 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
5021 infoPtr->scrollX = scrollX;
5022 UpdateWindow(infoPtr->hwnd);
5023 }
5024
5025 if (nScrollCode != SB_THUMBTRACK)
5026 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
5027
5028 return 0;
5029 }
5030
5031 static LRESULT
5032 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5033 {
5034 short wheelDelta;
5035 INT pulScrollLines = 3;
5036
5037 if (wParam & (MK_SHIFT | MK_CONTROL))
5038 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
5039
5040 if (infoPtr->firstVisible == NULL)
5041 return TRUE;
5042
5043 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
5044
5045 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
5046 /* if scrolling changes direction, ignore left overs */
5047 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
5048 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
5049 infoPtr->wheelRemainder += wheelDelta;
5050 else
5051 infoPtr->wheelRemainder = wheelDelta;
5052
5053 if (infoPtr->wheelRemainder && pulScrollLines)
5054 {
5055 int newDy;
5056 int maxDy;
5057 int lineScroll;
5058
5059 lineScroll = pulScrollLines * infoPtr->wheelRemainder / WHEEL_DELTA;
5060 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / pulScrollLines;
5061
5062 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
5063 maxDy = infoPtr->maxVisibleOrder;
5064
5065 if (newDy > maxDy)
5066 newDy = maxDy;
5067
5068 if (newDy < 0)
5069 newDy = 0;
5070
5071 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5072 }
5073 return TRUE;
5074 }
5075
5076 /* Create/Destroy *******************************************************/
5077
5078 static LRESULT
5079 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5080 {
5081 RECT rcClient;
5082 TREEVIEW_INFO *infoPtr;
5083 LOGFONTW lf;
5084
5085 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5086
5087 infoPtr = heap_alloc_zero(sizeof(TREEVIEW_INFO));
5088
5089 if (infoPtr == NULL)
5090 {
5091 ERR("could not allocate info memory!\n");
5092 return 0;
5093 }
5094
5095 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5096
5097 infoPtr->hwnd = hwnd;
5098 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5099 infoPtr->Timer = 0;
5100 infoPtr->uNumItems = 0;
5101 infoPtr->cdmode = 0;
5102 infoPtr->uScrollTime = 300; /* milliseconds */
5103 infoPtr->bRedraw = TRUE;
5104
5105 GetClientRect(hwnd, &rcClient);
5106
5107 /* No scroll bars yet. */
5108 infoPtr->clientWidth = rcClient.right;
5109 infoPtr->clientHeight = rcClient.bottom;
5110 infoPtr->uInternalStatus = 0;
5111
5112 infoPtr->treeWidth = 0;
5113 infoPtr->treeHeight = 0;
5114
5115 infoPtr->uIndent = MINIMUM_INDENT;
5116 infoPtr->selectedItem = NULL;
5117 infoPtr->focusedItem = NULL;
5118 infoPtr->hotItem = NULL;
5119 infoPtr->editItem = NULL;
5120 infoPtr->firstVisible = NULL;
5121 infoPtr->maxVisibleOrder = 0;
5122 infoPtr->dropItem = NULL;
5123 infoPtr->insertMarkItem = NULL;
5124 infoPtr->insertBeforeorAfter = 0;
5125 /* dragList */
5126
5127 infoPtr->scrollX = 0;
5128 infoPtr->wheelRemainder = 0;
5129
5130 infoPtr->clrBk = CLR_NONE; /* use system color */
5131 infoPtr->clrText = CLR_NONE; /* use system color */
5132 infoPtr->clrLine = CLR_DEFAULT;
5133 infoPtr->clrInsertMark = CLR_DEFAULT;
5134
5135 /* hwndToolTip */
5136
5137 infoPtr->hwndEdit = NULL;
5138 infoPtr->wpEditOrig = NULL;
5139 infoPtr->bIgnoreEditKillFocus = FALSE;
5140 infoPtr->bLabelChanged = FALSE;
5141
5142 infoPtr->himlNormal = NULL;
5143 infoPtr->himlState = NULL;
5144 infoPtr->normalImageWidth = 0;
5145 infoPtr->normalImageHeight = 0;
5146 infoPtr->stateImageWidth = 0;
5147 infoPtr->stateImageHeight = 0;
5148
5149 infoPtr->items = DPA_Create(16);
5150
5151 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5152 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5153 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5154 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5155 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5156 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5157
5158 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5159
5160 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5161 infoPtr->root->state = TVIS_EXPANDED;
5162 infoPtr->root->iLevel = -1;
5163 infoPtr->root->visibleOrder = -1;
5164
5165 infoPtr->hwndNotify = lpcs->hwndParent;
5166 infoPtr->hwndToolTip = 0;
5167
5168 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5169 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5170
5171 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5172 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5173 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5174 hwnd, 0, 0, 0);
5175
5176 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5177 ShowScrollBar(hwnd, SB_VERT, FALSE);
5178 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5179
5180 OpenThemeData (hwnd, themeClass);
5181
5182 return 0;
5183 }
5184
5185
5186 static LRESULT
5187 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5188 {
5189 TRACE("\n");
5190
5191 /* free item data */
5192 TREEVIEW_RemoveTree(infoPtr);
5193 /* root isn't freed with other items */
5194 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5195 DPA_Destroy(infoPtr->items);
5196
5197 /* Restore original wndproc */
5198 if (infoPtr->hwndEdit)
5199 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5200 (DWORD_PTR)infoPtr->wpEditOrig);
5201
5202 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5203
5204 /* Deassociate treeview from the window before doing anything drastic. */
5205 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5206
5207 DeleteObject(infoPtr->hDefaultFont);
5208 DeleteObject(infoPtr->hBoldFont);
5209 DeleteObject(infoPtr->hUnderlineFont);
5210 DeleteObject(infoPtr->hBoldUnderlineFont);
5211 DestroyWindow(infoPtr->hwndToolTip);
5212 heap_free(infoPtr);
5213
5214 return 0;
5215 }
5216
5217 /* Miscellaneous Messages ***********************************************/
5218
5219 static LRESULT
5220 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5221 {
5222 static const struct
5223 {
5224 unsigned char code;
5225 }
5226 scroll[] =
5227 {
5228 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5229 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5230 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5231 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5232 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5233 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5234 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5235 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5236 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5237 #undef SCROLL_ENTRY
5238 };
5239
5240 if (key >= VK_PRIOR && key <= VK_DOWN)
5241 {
5242 unsigned char code = scroll[key - VK_PRIOR].code;
5243
5244 (((code & (1 << 7)) == (SB_HORZ << 7))
5245 ? TREEVIEW_HScroll
5246 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5247 }
5248
5249 return 0;
5250 }
5251
5252 /************************************************************************
5253 * TREEVIEW_KeyDown
5254 *
5255 * VK_UP Move selection to the previous non-hidden item.
5256 * VK_DOWN Move selection to the next non-hidden item.
5257 * VK_HOME Move selection to the first item.
5258 * VK_END Move selection to the last item.
5259 * VK_LEFT If expanded then collapse, otherwise move to parent.
5260 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5261 * VK_ADD Expand.
5262 * VK_SUBTRACT Collapse.
5263 * VK_MULTIPLY Expand all.
5264 * VK_PRIOR Move up GetVisibleCount items.
5265 * VK_NEXT Move down GetVisibleCount items.
5266 * VK_BACK Move to parent.
5267 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5268 */
5269 static LRESULT
5270 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5271 {
5272 /* If it is non-NULL and different, it will be selected and visible. */
5273 TREEVIEW_ITEM *newSelection = NULL;
5274 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5275 NMTVKEYDOWN nmkeydown;
5276
5277 TRACE("%lx\n", wParam);
5278
5279 nmkeydown.wVKey = wParam;
5280 nmkeydown.flags = 0;
5281 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5282
5283 if (prevItem == NULL)
5284 return FALSE;
5285
5286 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5287 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5288
5289 switch (wParam)
5290 {
5291 case VK_UP:
5292 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5293 if (!newSelection)
5294 newSelection = infoPtr->root->firstChild;
5295 break;
5296
5297 case VK_DOWN:
5298 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5299 break;
5300
5301 case VK_RETURN:
5302 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5303 break;
5304
5305 case VK_HOME:
5306 newSelection = infoPtr->root->firstChild;
5307 break;
5308
5309 case VK_END:
5310 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5311 break;
5312
5313 case VK_LEFT:
5314 if (prevItem->state & TVIS_EXPANDED)
5315 {
5316 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5317 }
5318 else if (prevItem->parent != infoPtr->root)
5319 {
5320 newSelection = prevItem->parent;
5321 }
5322 break;
5323
5324 case VK_RIGHT:
5325 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5326 {
5327 if (!(prevItem->state & TVIS_EXPANDED))
5328 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5329 else
5330 {
5331 newSelection = prevItem->firstChild;
5332 }
5333 }
5334
5335 break;
5336
5337 case VK_MULTIPLY:
5338 TREEVIEW_ExpandAll(infoPtr, prevItem);
5339 break;
5340
5341 case VK_ADD:
5342 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5343 break;
5344
5345 case VK_SUBTRACT:
5346 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5347 break;
5348
5349 case VK_PRIOR:
5350 newSelection
5351 = TREEVIEW_GetListItem(infoPtr, prevItem,
5352 -TREEVIEW_GetVisibleCount(infoPtr));
5353 break;
5354
5355 case VK_NEXT:
5356 newSelection
5357 = TREEVIEW_GetListItem(infoPtr, prevItem,
5358 TREEVIEW_GetVisibleCount(infoPtr));
5359 break;
5360
5361 case VK_BACK:
5362 newSelection = prevItem->parent;
5363 if (newSelection == infoPtr->root)
5364 newSelection = NULL;
5365 break;
5366
5367 case VK_SPACE:
5368 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5369 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5370 break;
5371 }
5372
5373 if (newSelection && newSelection != prevItem)
5374 {
5375 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5376 TVC_BYKEYBOARD))
5377 {
5378 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5379 }
5380 }
5381
5382 return FALSE;
5383 }
5384
5385 static LRESULT
5386 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5387 {
5388 /* remove hot effect from item */
5389 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5390 infoPtr->hotItem = NULL;
5391
5392 return 0;
5393 }
5394
5395 static LRESULT
5396 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5397 {
5398 TRACKMOUSEEVENT trackinfo;
5399 TREEVIEW_ITEM * item;
5400 TVHITTESTINFO ht;
5401 BOOL item_hit;
5402
5403 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5404
5405 /* fill in the TRACKMOUSEEVENT struct */
5406 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5407 trackinfo.dwFlags = TME_QUERY;
5408 trackinfo.hwndTrack = infoPtr->hwnd;
5409
5410 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5411 _TrackMouseEvent(&trackinfo);
5412
5413 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5414 if(!(trackinfo.dwFlags & TME_LEAVE))
5415 {
5416 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5417 trackinfo.hwndTrack = infoPtr->hwnd;
5418 /* do it as fast as possible, minimal systimer latency will be used */
5419 trackinfo.dwHoverTime = 1;
5420
5421 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5422 /* and can properly deactivate the hot item */
5423 _TrackMouseEvent(&trackinfo);
5424 }
5425
5426 ht.pt.x = (short)LOWORD(lParam);
5427 ht.pt.y = (short)HIWORD(lParam);
5428
5429 item = TREEVIEW_HitTest(infoPtr, &ht);
5430 item_hit = TREEVIEW_IsItemHit(infoPtr, &ht);
5431 if ((item != infoPtr->hotItem) || !item_hit)
5432 {
5433 /* redraw old hot item */
5434 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5435 infoPtr->hotItem = NULL;
5436 if (item && item_hit)
5437 {
5438 infoPtr->hotItem = item;
5439 /* redraw new hot item */
5440 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5441 }
5442 }
5443
5444 return 0;
5445 }
5446
5447 /* Draw themed border */
5448 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5449 {
5450 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5451 HDC dc;
5452 RECT r;
5453 HRGN cliprgn;
5454 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5455 cyEdge = GetSystemMetrics (SM_CYEDGE);
5456
5457 if (!theme)
5458 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5459
5460 GetWindowRect(infoPtr->hwnd, &r);
5461
5462 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5463 r.right - cxEdge, r.bottom - cyEdge);
5464 if (region != (HRGN)1)
5465 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5466 OffsetRect(&r, -r.left, -r.top);
5467
5468 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5469
5470 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5471 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5472 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5473 ReleaseDC(infoPtr->hwnd, dc);
5474
5475 /* Call default proc to get the scrollbars etc. painted */
5476 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5477 DeleteObject(cliprgn);
5478
5479 return TRUE;
5480 }
5481
5482 static LRESULT
5483 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5484 {
5485 LPNMHDR lpnmh = (LPNMHDR)lParam;
5486
5487 if (lpnmh->code == PGN_CALCSIZE) {
5488 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5489
5490 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5491 lppgc->iWidth = infoPtr->treeWidth;
5492 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5493 infoPtr->treeWidth, infoPtr->clientWidth);
5494 }
5495 else {
5496 lppgc->iHeight = infoPtr->treeHeight;
5497 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5498 infoPtr->treeHeight, infoPtr->clientHeight);
5499 }
5500 return 0;
5501 }
5502 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5503 }
5504
5505 static LRESULT
5506 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5507 {
5508 if (wParam == SIZE_RESTORED)
5509 {
5510 infoPtr->clientWidth = (short)LOWORD(lParam);
5511 infoPtr->clientHeight = (short)HIWORD(lParam);
5512
5513 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5514 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5515 TREEVIEW_UpdateScrollBars(infoPtr);
5516 }
5517 else
5518 {
5519 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5520 }
5521
5522 TREEVIEW_Invalidate(infoPtr, NULL);
5523 return 0;
5524 }
5525
5526 static LRESULT
5527 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5528 {
5529 TRACE("(%lx %lx)\n", wParam, lParam);
5530
5531 if (wParam == GWL_STYLE)
5532 {
5533 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5534
5535 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5536 {
5537 if (dwNewStyle & TVS_CHECKBOXES)
5538 {
5539 TREEVIEW_InitCheckboxes(infoPtr);
5540 TRACE("checkboxes enabled\n");
5541
5542 /* set all items to state image index 1 */
5543 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5544 }
5545 else
5546 {
5547 FIXME("tried to disable checkboxes\n");
5548 }
5549 }
5550
5551 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5552 {
5553 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5554 {
5555 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5556 TRACE("tooltips enabled\n");
5557 }
5558 else
5559 {
5560 DestroyWindow(infoPtr->hwndToolTip);
5561 infoPtr->hwndToolTip = 0;
5562 TRACE("tooltips disabled\n");
5563 }
5564 }
5565
5566 infoPtr->dwStyle = dwNewStyle;
5567 }
5568
5569 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5570 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5571 TREEVIEW_UpdateScrollBars(infoPtr);
5572 TREEVIEW_Invalidate(infoPtr, NULL);
5573
5574 return 0;
5575 }
5576
5577 static LRESULT
5578 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5579 {
5580 TREEVIEW_ITEM * item;
5581 TVHITTESTINFO ht;
5582 NMMOUSE nmmouse;
5583
5584 GetCursorPos(&ht.pt);
5585 ScreenToClient(infoPtr->hwnd, &ht.pt);
5586
5587 item = TREEVIEW_HitTest(infoPtr, &ht);
5588
5589 memset(&nmmouse, 0, sizeof(nmmouse));
5590 if (item)
5591 {
5592 nmmouse.dwItemSpec = (DWORD_PTR)item;
5593 nmmouse.dwItemData = item->lParam;
5594 }
5595 nmmouse.pt.x = 0;
5596 nmmouse.pt.y = 0;
5597 nmmouse.dwHitInfo = lParam;
5598 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5599 return 0;
5600
5601 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT) && TREEVIEW_IsItemHit(infoPtr, &ht))
5602 {
5603 SetCursor(infoPtr->hcurHand);
5604 return 0;
5605 }
5606 else
5607 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5608 }
5609
5610 static LRESULT
5611 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5612 {
5613 TRACE("\n");
5614
5615 if (!infoPtr->selectedItem)
5616 {
5617 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5618 TVC_UNKNOWN);
5619 }
5620
5621 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5622 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5623 return 0;
5624 }
5625
5626 static LRESULT
5627 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5628 {
5629 TRACE("\n");
5630
5631 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5632 UpdateWindow(infoPtr->hwnd);
5633 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5634 return 0;
5635 }
5636
5637 /* update theme after a WM_THEMECHANGED message */
5638 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5639 {
5640 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5641 CloseThemeData (theme);
5642 OpenThemeData (infoPtr->hwnd, themeClass);
5643 InvalidateRect (infoPtr->hwnd, NULL, TRUE);
5644 return 0;
5645 }
5646
5647
5648 static LRESULT WINAPI
5649 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5650 {
5651 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5652
5653 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5654
5655 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5656 else
5657 {
5658 if (uMsg == WM_CREATE)
5659 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5660 else
5661 goto def;
5662 }
5663
5664 switch (uMsg)
5665 {
5666 case TVM_CREATEDRAGIMAGE:
5667 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5668
5669 case TVM_DELETEITEM:
5670 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5671
5672 case TVM_EDITLABELA:
5673 case TVM_EDITLABELW:
5674 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5675
5676 case TVM_ENDEDITLABELNOW:
5677 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5678
5679 case TVM_ENSUREVISIBLE:
5680 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5681
5682 case TVM_EXPAND:
5683 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5684
5685 case TVM_GETBKCOLOR:
5686 return TREEVIEW_GetBkColor(infoPtr);
5687
5688 case TVM_GETCOUNT:
5689 return TREEVIEW_GetCount(infoPtr);
5690
5691 case TVM_GETEDITCONTROL:
5692 return TREEVIEW_GetEditControl(infoPtr);
5693
5694 case TVM_GETIMAGELIST:
5695 return TREEVIEW_GetImageList(infoPtr, wParam);
5696
5697 case TVM_GETINDENT:
5698 return TREEVIEW_GetIndent(infoPtr);
5699
5700 case TVM_GETINSERTMARKCOLOR:
5701 return TREEVIEW_GetInsertMarkColor(infoPtr);
5702
5703 case TVM_GETISEARCHSTRINGA:
5704 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5705 return 0;
5706
5707 case TVM_GETISEARCHSTRINGW:
5708 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5709 return 0;
5710
5711 case TVM_GETITEMA:
5712 case TVM_GETITEMW:
5713 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5714 uMsg == TVM_GETITEMW);
5715 case TVM_GETITEMHEIGHT:
5716 return TREEVIEW_GetItemHeight(infoPtr);
5717
5718 case TVM_GETITEMRECT:
5719 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5720
5721 case TVM_GETITEMSTATE:
5722 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5723
5724 case TVM_GETLINECOLOR:
5725 return TREEVIEW_GetLineColor(infoPtr);
5726
5727 case TVM_GETNEXTITEM:
5728 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5729
5730 case TVM_GETSCROLLTIME:
5731 return TREEVIEW_GetScrollTime(infoPtr);
5732
5733 case TVM_GETTEXTCOLOR:
5734 return TREEVIEW_GetTextColor(infoPtr);
5735
5736 case TVM_GETTOOLTIPS:
5737 return TREEVIEW_GetToolTips(infoPtr);
5738
5739 case TVM_GETUNICODEFORMAT:
5740 return TREEVIEW_GetUnicodeFormat(infoPtr);
5741
5742 case TVM_GETVISIBLECOUNT:
5743 return TREEVIEW_GetVisibleCount(infoPtr);
5744
5745 case TVM_HITTEST:
5746 return (LRESULT)TREEVIEW_HitTest(infoPtr, (TVHITTESTINFO*)lParam);
5747
5748 case TVM_INSERTITEMA:
5749 case TVM_INSERTITEMW:
5750 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5751 uMsg == TVM_INSERTITEMW);
5752 case TVM_SELECTITEM:
5753 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5754
5755 case TVM_SETBKCOLOR:
5756 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5757
5758 case TVM_SETIMAGELIST:
5759 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5760
5761 case TVM_SETINDENT:
5762 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5763
5764 case TVM_SETINSERTMARK:
5765 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5766
5767 case TVM_SETINSERTMARKCOLOR:
5768 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5769
5770 case TVM_SETITEMA:
5771 case TVM_SETITEMW:
5772 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5773 uMsg == TVM_SETITEMW);
5774 case TVM_SETLINECOLOR:
5775 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5776
5777 case TVM_SETITEMHEIGHT:
5778 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5779
5780 case TVM_SETSCROLLTIME:
5781 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5782
5783 case TVM_SETTEXTCOLOR:
5784 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5785
5786 case TVM_SETTOOLTIPS:
5787 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5788
5789 case TVM_SETUNICODEFORMAT:
5790 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5791
5792 case TVM_SORTCHILDREN:
5793 return TREEVIEW_SortChildren(infoPtr, lParam);
5794
5795 case TVM_SORTCHILDRENCB:
5796 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5797
5798 case WM_CHAR:
5799 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5800
5801 case WM_COMMAND:
5802 return TREEVIEW_Command(infoPtr, wParam, lParam);
5803
5804 case WM_DESTROY:
5805 return TREEVIEW_Destroy(infoPtr);
5806
5807 /* WM_ENABLE */
5808
5809 case WM_ERASEBKGND:
5810 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5811
5812 case WM_GETDLGCODE:
5813 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5814
5815 case WM_GETFONT:
5816 return TREEVIEW_GetFont(infoPtr);
5817
5818 case WM_HSCROLL:
5819 return TREEVIEW_HScroll(infoPtr, wParam);
5820
5821 case WM_KEYDOWN:
5822 case WM_SYSKEYDOWN:
5823 return TREEVIEW_KeyDown(infoPtr, wParam);
5824
5825 case WM_KILLFOCUS:
5826 return TREEVIEW_KillFocus(infoPtr);
5827
5828 case WM_LBUTTONDBLCLK:
5829 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5830
5831 case WM_LBUTTONDOWN:
5832 return TREEVIEW_LButtonDown(infoPtr, lParam);
5833
5834 /* WM_MBUTTONDOWN */
5835
5836 case WM_MOUSELEAVE:
5837 return TREEVIEW_MouseLeave(infoPtr);
5838
5839 case WM_MOUSEMOVE:
5840 return TREEVIEW_MouseMove(infoPtr, lParam);
5841
5842 case WM_NCLBUTTONDOWN:
5843 if (infoPtr->hwndEdit)
5844 SetFocus(infoPtr->hwnd);
5845 goto def;
5846
5847 case WM_NCPAINT:
5848 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5849
5850 case WM_NOTIFY:
5851 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5852
5853 case WM_NOTIFYFORMAT:
5854 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5855
5856 case WM_PRINTCLIENT:
5857 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5858
5859 case WM_PAINT:
5860 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5861
5862 case WM_RBUTTONDOWN:
5863 return TREEVIEW_RButtonDown(infoPtr, lParam);
5864
5865 case WM_SETCURSOR:
5866 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5867
5868 case WM_SETFOCUS:
5869 return TREEVIEW_SetFocus(infoPtr);
5870
5871 case WM_SETFONT:
5872 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5873
5874 case WM_SETREDRAW:
5875 return TREEVIEW_SetRedraw(infoPtr, wParam);
5876
5877 case WM_SIZE:
5878 return TREEVIEW_Size(infoPtr, wParam, lParam);
5879
5880 case WM_STYLECHANGED:
5881 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5882
5883 case WM_SYSCOLORCHANGE:
5884 COMCTL32_RefreshSysColors();
5885 return 0;
5886
5887 case WM_TIMER:
5888 return TREEVIEW_HandleTimer(infoPtr, wParam);
5889
5890 case WM_THEMECHANGED:
5891 return TREEVIEW_ThemeChanged (infoPtr);
5892
5893 case WM_VSCROLL:
5894 return TREEVIEW_VScroll(infoPtr, wParam);
5895
5896 /* WM_WININICHANGE */
5897
5898 case WM_MOUSEWHEEL:
5899 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5900
5901 case WM_DRAWITEM:
5902 TRACE("drawItem\n");
5903 goto def;
5904
5905 default:
5906 /* This mostly catches MFC and Delphi messages. :( */
5907 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5908 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5909 def:
5910 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5911 }
5912 }
5913
5914
5915 /* Class Registration ***************************************************/
5916
5917 VOID
5918 TREEVIEW_Register(void)
5919 {
5920 WNDCLASSW wndClass;
5921
5922 TRACE("\n");
5923
5924 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5925 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5926 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5927 wndClass.cbClsExtra = 0;
5928 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5929
5930 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5931 wndClass.hbrBackground = 0;
5932 wndClass.lpszClassName = WC_TREEVIEWW;
5933
5934 RegisterClassW(&wndClass);
5935 }
5936
5937
5938 VOID
5939 TREEVIEW_Unregister(void)
5940 {
5941 UnregisterClassW(WC_TREEVIEWW, NULL);
5942 }
5943
5944
5945 /* Tree Verification ****************************************************/
5946
5947 static inline void
5948 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5949
5950 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5951 const TREEVIEW_ITEM *item)
5952 {
5953 assert(infoPtr != NULL);
5954 assert(item != NULL);
5955
5956 /* both NULL, or both non-null */
5957 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5958
5959 assert(item->firstChild != item);
5960 assert(item->lastChild != item);
5961
5962 if (item->firstChild)
5963 {
5964 assert(item->firstChild->parent == item);
5965 assert(item->firstChild->prevSibling == NULL);
5966 }
5967
5968 if (item->lastChild)
5969 {
5970 assert(item->lastChild->parent == item);
5971 assert(item->lastChild->nextSibling == NULL);
5972 }
5973
5974 assert(item->nextSibling != item);
5975 if (item->nextSibling)
5976 {
5977 assert(item->nextSibling->parent == item->parent);
5978 assert(item->nextSibling->prevSibling == item);
5979 }
5980
5981 assert(item->prevSibling != item);
5982 if (item->prevSibling)
5983 {
5984 assert(item->prevSibling->parent == item->parent);
5985 assert(item->prevSibling->nextSibling == item);
5986 }
5987 }
5988
5989 static inline void
5990 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5991 {
5992 assert(item != NULL);
5993
5994 assert(item->parent != NULL);
5995 assert(item->parent != item);
5996 assert(item->iLevel == item->parent->iLevel + 1);
5997
5998 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5999
6000 TREEVIEW_VerifyItemCommon(infoPtr, item);
6001
6002 TREEVIEW_VerifyChildren(infoPtr, item);
6003 }
6004
6005 static inline void
6006 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
6007 {
6008 const TREEVIEW_ITEM *child;
6009 assert(item != NULL);
6010
6011 for (child = item->firstChild; child != NULL; child = child->nextSibling)
6012 TREEVIEW_VerifyItem(infoPtr, child);
6013 }
6014
6015 static inline void
6016 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
6017 {
6018 TREEVIEW_ITEM *root = infoPtr->root;
6019
6020 assert(root != NULL);
6021 assert(root->iLevel == -1);
6022 assert(root->parent == NULL);
6023 assert(root->prevSibling == NULL);
6024
6025 TREEVIEW_VerifyItemCommon(infoPtr, root);
6026
6027 TREEVIEW_VerifyChildren(infoPtr, root);
6028 }
6029
6030 static void
6031 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
6032 {
6033 if (!TRACE_ON(treeview)) return;
6034
6035 assert(infoPtr != NULL);
6036 TREEVIEW_VerifyRoot(infoPtr);
6037 }
Windows API implementation