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[wine.git] / dlls / comctl32 / treeview.c
blob55e22e24b0f2847292c67bdbb975bd7bca296077
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_FULLROWSELECT, 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 "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54
55 #include "windef.h"
56 #include "winbase.h"
57 #include "wingdi.h"
58 #include "winuser.h"
59 #include "winnls.h"
60 #include "commctrl.h"
61 #include "comctl32.h"
62 #include "uxtheme.h"
63 #include "vssym32.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66 #include "wine/exception.h"
67
68 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
69
70 /* internal structures */
71 typedef struct tagTREEVIEW_INFO
72 {
73 HWND hwnd;
74 HWND hwndNotify; /* Owner window to send notifications to */
75 DWORD dwStyle;
76 HTREEITEM root;
77 UINT uInternalStatus;
78 INT Timer;
79 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
80 INT cdmode; /* last custom draw setting */
81 UINT uScrollTime; /* max. time for scrolling in milliseconds */
82 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
83
84 UINT uItemHeight; /* item height */
85 BOOL bHeightSet;
86
87 LONG clientWidth; /* width of control window */
88 LONG clientHeight; /* height of control window */
89
90 LONG treeWidth; /* width of visible tree items */
91 LONG treeHeight; /* height of visible tree items */
92
93 UINT uIndent; /* indentation in pixels */
94 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
95 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
96 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
97 HTREEITEM editItem; /* item being edited with builtin edit box */
98
99 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
100 LONG maxVisibleOrder;
101 HTREEITEM dropItem; /* handle to item selected by drag cursor */
102 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
103 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
104 HIMAGELIST dragList; /* Bitmap of dragged item */
105 LONG scrollX;
106 INT wheelRemainder;
107 COLORREF clrBk;
108 COLORREF clrText;
109 COLORREF clrLine;
110 COLORREF clrInsertMark;
111 HFONT hFont;
112 HFONT hDefaultFont;
113 HFONT hBoldFont;
114 HFONT hUnderlineFont;
115 HFONT hBoldUnderlineFont;
116 HCURSOR hcurHand;
117 HWND hwndToolTip;
118
119 HWND hwndEdit;
120 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
121 BOOL bIgnoreEditKillFocus;
122 BOOL bLabelChanged;
123
124 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
125 HIMAGELIST himlNormal;
126 int normalImageHeight;
127 int normalImageWidth;
128 HIMAGELIST himlState;
129 int stateImageHeight;
130 int stateImageWidth;
131 HDPA items;
132
133 DWORD lastKeyPressTimestamp;
134 WPARAM charCode;
135 INT nSearchParamLength;
136 WCHAR szSearchParam[ MAX_PATH ];
137 } TREEVIEW_INFO;
138
139 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
140 {
141 HTREEITEM parent; /* handle to parent or 0 if at root */
142 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
143 HTREEITEM firstChild; /* handle to first child or 0 if no child */
144
145 UINT callbackMask;
146 UINT state;
147 UINT stateMask;
148 LPWSTR pszText;
149 int cchTextMax;
150 int iImage;
151 int iSelectedImage;
152 int iExpandedImage;
153 int cChildren;
154 LPARAM lParam;
155 int iIntegral; /* item height multiplier (1 is normal) */
156 int iLevel; /* indentation level:0=root level */
157 HTREEITEM lastChild;
158 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
159 RECT rect;
160 LONG linesOffset;
161 LONG stateOffset;
162 LONG imageOffset;
163 LONG textOffset;
164 LONG textWidth; /* horizontal text extent for pszText */
165 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
166 corresponding to a top-to-bottom ordering in the tree view.
167 Each item takes up "item.iIntegral" spots in the visible order.
168 0 is the root's first child. */
169 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
170 } TREEVIEW_ITEM;
171
172 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
173 #define KEY_DELAY 450
174
175 /* bitflags for infoPtr->uInternalStatus */
176
177 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
178 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
179 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
180 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
181 #define TV_RDRAG 0x10 /* ditto Rbutton */
182 #define TV_RDRAGGING 0x20
183
184 /* bitflags for infoPtr->timer */
185
186 #define TV_EDIT_TIMER 2
187 #define TV_EDIT_TIMER_SET 2
188
189 #define TEXT_CALLBACK_SIZE 260
190
191 #define TREEVIEW_LEFT_MARGIN 8
192
193 #define MINIMUM_INDENT 19
194
195 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
196
197 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
198 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
199 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
200
201 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
202 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
203 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
204 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
205
206 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
207
208
209 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
210
211
212 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
213
214 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
215 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
216 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
217 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
218 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
219 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
220
221 /* Random Utilities *****************************************************/
222 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
223
224 /* Returns the treeview private data if hwnd is a treeview.
225 * Otherwise returns an undefined value. */
226 static inline TREEVIEW_INFO *
227 TREEVIEW_GetInfoPtr(HWND hwnd)
228 {
229 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
230 }
231
232 /* Don't call this. Nothing wants an item index. */
233 static inline int
234 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
235 {
236 return DPA_GetPtrIndex(infoPtr->items, handle);
237 }
238
239 /* Checks if item has changed and needs to be redrawn */
240 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
241 const TVITEMEXW *tvChange)
242 {
243 /* Number of children has changed */
244 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
245 return TRUE;
246
247 /* Image has changed and it's not a callback */
248 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
249 tiNew->iImage != I_IMAGECALLBACK)
250 return TRUE;
251
252 /* Selected image has changed and it's not a callback */
253 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
254 tiNew->iSelectedImage != I_IMAGECALLBACK)
255 return TRUE;
256
257 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
258 tiNew->iExpandedImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Text has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
263 tiNew->pszText != LPSTR_TEXTCALLBACKW)
264 return TRUE;
265
266 /* Indent has changed */
267 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
268 return TRUE;
269
270 /* Item state has changed */
271 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
272 return TRUE;
273
274 return FALSE;
275 }
276
277 /***************************************************************************
278 * This method checks that handle is an item for this tree.
279 */
280 static BOOL
281 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
282 {
283 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
284 {
285 TRACE("invalid item %p\n", handle);
286 return FALSE;
287 }
288 else
289 return TRUE;
290 }
291
292 static HFONT
293 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
294 {
295 LOGFONTW font;
296
297 GetObjectW(hOrigFont, sizeof(font), &font);
298 font.lfWeight = FW_BOLD;
299 return CreateFontIndirectW(&font);
300 }
301
302 static HFONT
303 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
304 {
305 LOGFONTW font;
306
307 GetObjectW(hOrigFont, sizeof(font), &font);
308 font.lfUnderline = TRUE;
309 return CreateFontIndirectW(&font);
310 }
311
312 static HFONT
313 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
314 {
315 LOGFONTW font;
316
317 GetObjectW(hfont, sizeof(font), &font);
318 font.lfWeight = FW_BOLD;
319 font.lfUnderline = TRUE;
320 return CreateFontIndirectW(&font);
321 }
322
323 static inline HFONT
324 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
325 {
326 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
327 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
328 if (item->state & TVIS_BOLD)
329 return infoPtr->hBoldFont;
330 return infoPtr->hFont;
331 }
332
333 /* for trace/debugging purposes only */
334 static const char *
335 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
336 {
337 if (item == NULL) return "<null item>";
338 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
339 if (item->pszText == NULL) return "<null>";
340 return debugstr_w(item->pszText);
341 }
342
343 /* An item is not a child of itself. */
344 static BOOL
345 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
346 {
347 do
348 {
349 child = child->parent;
350 if (child == parent) return TRUE;
351 } while (child != NULL);
352
353 return FALSE;
354 }
355
356 static BOOL
357 TREEVIEW_IsFullRowSelect(const TREEVIEW_INFO *infoPtr)
358 {
359 return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);
360 }
361
362 static BOOL
363 TREEVIEW_IsItemHit(const TREEVIEW_INFO *infoPtr, const TVHITTESTINFO *ht)
364 {
365 if (TREEVIEW_IsFullRowSelect(infoPtr))
366 return ht->flags & (TVHT_ONITEMINDENT | TVHT_ONITEMBUTTON | TVHT_ONITEM | TVHT_ONITEMRIGHT);
367 else
368 return ht->flags & TVHT_ONITEM;
369 }
370
371 /* Tree Traversal *******************************************************/
372
373 /***************************************************************************
374 * This method returns the last expanded sibling or child child item
375 * of a tree node
376 */
377 static TREEVIEW_ITEM *
378 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
379 {
380 if (!item) return NULL;
381
382 while (item->lastChild)
383 {
384 if (item->state & TVIS_EXPANDED)
385 item = item->lastChild;
386 else
387 break;
388 }
389
390 if (item == infoPtr->root)
391 return NULL;
392
393 return item;
394 }
395
396 /***************************************************************************
397 * This method returns the previous non-hidden item in the list not
398 * considering the tree hierarchy.
399 */
400 static TREEVIEW_ITEM *
401 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
402 {
403 if (tvItem->prevSibling)
404 {
405 /* This item has a prevSibling, get the last item in the sibling's tree. */
406 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
407
408 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
409 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
410 else
411 return upItem;
412 }
413 else
414 {
415 /* this item does not have a prevSibling, get the parent */
416 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
417 }
418 }
419
420
421 /***************************************************************************
422 * This method returns the next physical item in the treeview not
423 * considering the tree hierarchy.
424 */
425 static TREEVIEW_ITEM *
426 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
427 {
428 /*
429 * If this item has children and is expanded, return the first child
430 */
431 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
432 {
433 return tvItem->firstChild;
434 }
435
436
437 /*
438 * try to get the sibling
439 */
440 if (tvItem->nextSibling)
441 return tvItem->nextSibling;
442
443 /*
444 * Otherwise, get the parent's sibling.
445 */
446 while (tvItem->parent)
447 {
448 tvItem = tvItem->parent;
449
450 if (tvItem->nextSibling)
451 return tvItem->nextSibling;
452 }
453
454 return NULL;
455 }
456
457 /***************************************************************************
458 * This method returns the nth item starting at the given item. It returns
459 * the last item (or first) we we run out of items.
460 *
461 * Will scroll backward if count is <0.
462 * forward if count is >0.
463 */
464 static TREEVIEW_ITEM *
465 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
466 LONG count)
467 {
468 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
469 TREEVIEW_ITEM *previousItem;
470
471 assert(item != NULL);
472
473 if (count > 0)
474 {
475 next_item = TREEVIEW_GetNextListItem;
476 }
477 else if (count < 0)
478 {
479 count = -count;
480 next_item = TREEVIEW_GetPrevListItem;
481 }
482 else
483 return item;
484
485 do
486 {
487 previousItem = item;
488 item = next_item(infoPtr, item);
489
490 } while (--count && item != NULL);
491
492
493 return item ? item : previousItem;
494 }
495
496 /* Notifications ************************************************************/
497
498 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
499 {
500 if (!infoPtr->bNtfUnicode) {
501 switch (code) {
502 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
503 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
504 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
505 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
506 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
507 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
508 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
509 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
510 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
511 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
512 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
513 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
514 }
515 }
516 return code;
517 }
518
519 static inline BOOL
520 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
521 {
522 TRACE("code=%d, hdr=%p\n", code, hdr);
523
524 hdr->hwndFrom = infoPtr->hwnd;
525 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
526 hdr->code = get_notifycode(infoPtr, code);
527
528 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
529 }
530
531 static BOOL
532 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
533 {
534 NMHDR hdr;
535 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
536 }
537
538 static VOID
539 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
540 {
541 tvItem->mask = mask;
542 tvItem->hItem = item;
543 tvItem->state = item->state;
544 tvItem->stateMask = 0;
545 tvItem->iImage = item->iImage;
546 tvItem->iSelectedImage = item->iSelectedImage;
547 tvItem->cChildren = item->cChildren;
548 tvItem->lParam = item->lParam;
549
550 if(mask & TVIF_TEXT)
551 {
552 if (!infoPtr->bNtfUnicode)
553 {
554 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
555 tvItem->pszText = Alloc (tvItem->cchTextMax);
556 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
557 }
558 else
559 {
560 tvItem->cchTextMax = item->cchTextMax;
561 tvItem->pszText = item->pszText;
562 }
563 }
564 else
565 {
566 tvItem->cchTextMax = 0;
567 tvItem->pszText = NULL;
568 }
569 }
570
571 static BOOL
572 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
573 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
574 {
575 NMTREEVIEWW nmhdr;
576 BOOL ret;
577
578 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
579 code, action, oldItem, newItem);
580
581 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
582 nmhdr.action = action;
583
584 if (oldItem)
585 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
586
587 if (newItem)
588 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
589
590 nmhdr.ptDrag.x = 0;
591 nmhdr.ptDrag.y = 0;
592
593 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
594 if (!infoPtr->bNtfUnicode)
595 {
596 Free(nmhdr.itemOld.pszText);
597 Free(nmhdr.itemNew.pszText);
598 }
599 return ret;
600 }
601
602 static BOOL
603 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
604 HTREEITEM dragItem, POINT pt)
605 {
606 NMTREEVIEWW nmhdr;
607
608 TRACE("code:%d dragitem:%p\n", code, dragItem);
609
610 nmhdr.action = 0;
611 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
612 nmhdr.itemNew.hItem = dragItem;
613 nmhdr.itemNew.state = dragItem->state;
614 nmhdr.itemNew.lParam = dragItem->lParam;
615
616 nmhdr.ptDrag.x = pt.x;
617 nmhdr.ptDrag.y = pt.y;
618
619 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
620 }
621
622
623 static BOOL
624 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
625 HDC hdc, RECT rc)
626 {
627 NMTVCUSTOMDRAW nmcdhdr;
628 NMCUSTOMDRAW *nmcd;
629
630 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->dwDrawStage = dwDrawStage;
634 nmcd->hdc = hdc;
635 nmcd->rc = rc;
636 nmcd->dwItemSpec = 0;
637 nmcd->uItemState = 0;
638 nmcd->lItemlParam = 0;
639 nmcdhdr.clrText = infoPtr->clrText;
640 nmcdhdr.clrTextBk = infoPtr->clrBk;
641 nmcdhdr.iLevel = 0;
642
643 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
644 }
645
646 /* FIXME: need to find out when the flags in uItemState need to be set */
647
648 static BOOL
649 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
650 TREEVIEW_ITEM *item, UINT uItemDrawState,
651 NMTVCUSTOMDRAW *nmcdhdr)
652 {
653 NMCUSTOMDRAW *nmcd;
654 DWORD dwDrawStage;
655 DWORD_PTR dwItemSpec;
656 UINT uItemState;
657
658 dwDrawStage = CDDS_ITEM | uItemDrawState;
659 dwItemSpec = (DWORD_PTR)item;
660 uItemState = 0;
661 if (item->state & TVIS_SELECTED)
662 uItemState |= CDIS_SELECTED;
663 if (item == infoPtr->selectedItem)
664 uItemState |= CDIS_FOCUS;
665 if (item == infoPtr->hotItem)
666 uItemState |= CDIS_HOT;
667
668 nmcd = &nmcdhdr->nmcd;
669 nmcd->dwDrawStage = dwDrawStage;
670 nmcd->hdc = hdc;
671 nmcd->rc = item->rect;
672 nmcd->dwItemSpec = dwItemSpec;
673 nmcd->uItemState = uItemState;
674 nmcd->lItemlParam = item->lParam;
675 nmcdhdr->iLevel = item->iLevel;
676
677 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
678 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
679 nmcd->uItemState, nmcd->lItemlParam);
680
681 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
682 }
683
684 static BOOL
685 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
686 {
687 NMTVDISPINFOW tvdi;
688 BOOL ret;
689
690 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
691 &tvdi.item, editItem);
692
693 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
694
695 if (!infoPtr->bNtfUnicode)
696 Free(tvdi.item.pszText);
697
698 return ret;
699 }
700
701 static void
702 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
703 UINT mask)
704 {
705 NMTVDISPINFOEXW callback;
706
707 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
708 mask &= item->callbackMask;
709
710 if (mask == 0) return;
711
712 /* 'state' always contains valid value, as well as 'lParam'.
713 * All other parameters are uninitialized.
714 */
715 callback.item.pszText = item->pszText;
716 callback.item.cchTextMax = item->cchTextMax;
717 callback.item.mask = mask;
718 callback.item.hItem = item;
719 callback.item.state = item->state;
720 callback.item.lParam = item->lParam;
721
722 /* If text is changed we need to recalculate textWidth */
723 if (mask & TVIF_TEXT)
724 item->textWidth = 0;
725
726 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
727 TRACE("resulting code 0x%08x\n", callback.hdr.code);
728
729 /* It may have changed due to a call to SetItem. */
730 mask &= item->callbackMask;
731
732 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
733 {
734 /* Instead of copying text into our buffer user specified his own */
735 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
736 LPWSTR newText;
737 int buflen;
738 int len = MultiByteToWideChar( CP_ACP, 0,
739 (LPSTR)callback.item.pszText, -1,
740 NULL, 0);
741 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
742 newText = ReAlloc(item->pszText, buflen);
743
744 TRACE("returned str %s, len=%d, buflen=%d\n",
745 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
746
747 if (newText)
748 {
749 item->pszText = newText;
750 MultiByteToWideChar( CP_ACP, 0,
751 (LPSTR)callback.item.pszText, -1,
752 item->pszText, buflen/sizeof(WCHAR));
753 item->cchTextMax = buflen/sizeof(WCHAR);
754 }
755 /* If ReAlloc fails we have nothing to do, but keep original text */
756 }
757 else {
758 int len = max(lstrlenW(callback.item.pszText) + 1,
759 TEXT_CALLBACK_SIZE);
760 LPWSTR newText = ReAlloc(item->pszText, len);
761
762 TRACE("returned wstr %s, len=%d\n",
763 debugstr_w(callback.item.pszText), len);
764
765 if (newText)
766 {
767 item->pszText = newText;
768 strcpyW(item->pszText, callback.item.pszText);
769 item->cchTextMax = len;
770 }
771 /* If ReAlloc fails we have nothing to do, but keep original text */
772 }
773 }
774 else if (mask & TVIF_TEXT) {
775 /* User put text into our buffer, that is ok unless A string */
776 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
777 LPWSTR newText;
778 int buflen;
779 int len = MultiByteToWideChar( CP_ACP, 0,
780 (LPSTR)callback.item.pszText, -1,
781 NULL, 0);
782 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
783 newText = Alloc(buflen);
784
785 TRACE("same buffer str %s, len=%d, buflen=%d\n",
786 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
787
788 if (newText)
789 {
790 LPWSTR oldText = item->pszText;
791 item->pszText = newText;
792 MultiByteToWideChar( CP_ACP, 0,
793 (LPSTR)callback.item.pszText, -1,
794 item->pszText, buflen/sizeof(WCHAR));
795 item->cchTextMax = buflen/sizeof(WCHAR);
796 Free(oldText);
797 }
798 }
799 }
800
801 if (mask & TVIF_IMAGE)
802 item->iImage = callback.item.iImage;
803
804 if (mask & TVIF_SELECTEDIMAGE)
805 item->iSelectedImage = callback.item.iSelectedImage;
806
807 if (mask & TVIF_EXPANDEDIMAGE)
808 item->iExpandedImage = callback.item.iExpandedImage;
809
810 if (mask & TVIF_CHILDREN)
811 item->cChildren = callback.item.cChildren;
812
813 if (callback.item.mask & TVIF_STATE)
814 {
815 item->state &= ~callback.item.stateMask;
816 item->state |= (callback.item.state & callback.item.stateMask);
817 }
818
819 /* These members are now permanently set. */
820 if (callback.item.mask & TVIF_DI_SETITEM)
821 item->callbackMask &= ~callback.item.mask;
822 }
823
824 /***************************************************************************
825 * This function uses cChildren field to decide whether the item has
826 * children or not.
827 * Note: if this returns TRUE, the child items may not actually exist,
828 * they could be virtual.
829 *
830 * Just use item->firstChild to check for physical children.
831 */
832 static BOOL
833 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
834 {
835 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
836 /* Protect for a case when callback field is not changed by a host,
837 otherwise negative values trigger normal notifications. */
838 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
839 }
840
841 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
842 {
843 INT format;
844
845 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
846
847 if (nCommand != NF_REQUERY) return 0;
848
849 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
850 TRACE("format=%d\n", format);
851
852 /* Invalid format returned by NF_QUERY defaults to ANSI*/
853 if (format != NFR_ANSI && format != NFR_UNICODE)
854 format = NFR_ANSI;
855
856 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
857
858 return format;
859 }
860
861 /* Item Position ********************************************************/
862
863 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
864 static VOID
865 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
866 {
867 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
868 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
869 > TVS_LINESATROOT);
870
871 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
872 - infoPtr->scrollX;
873 item->stateOffset = item->linesOffset + infoPtr->uIndent;
874 item->imageOffset = item->stateOffset
875 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
876 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
877 }
878
879 static VOID
880 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
881 {
882 HDC hdc;
883 HFONT hOldFont=0;
884 SIZE sz;
885
886 /* DRAW's OM docker creates items like this */
887 if (item->pszText == NULL)
888 {
889 item->textWidth = 0;
890 return;
891 }
892
893 if (hDC != 0)
894 {
895 hdc = hDC;
896 }
897 else
898 {
899 hdc = GetDC(infoPtr->hwnd);
900 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
901 }
902
903 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
904 item->textWidth = sz.cx;
905
906 if (hDC == 0)
907 {
908 SelectObject(hdc, hOldFont);
909 ReleaseDC(0, hdc);
910 }
911 }
912
913 static VOID
914 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
915 {
916 item->rect.top = infoPtr->uItemHeight *
917 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
918
919 item->rect.bottom = item->rect.top
920 + infoPtr->uItemHeight * item->iIntegral - 1;
921
922 item->rect.left = 0;
923 item->rect.right = infoPtr->clientWidth;
924 }
925
926 /* We know that only items after start need their order updated. */
927 static void
928 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
929 {
930 TREEVIEW_ITEM *item;
931 int order;
932
933 if (!start)
934 {
935 start = infoPtr->root->firstChild;
936 order = 0;
937 }
938 else
939 order = start->visibleOrder;
940
941 for (item = start; item != NULL;
942 item = TREEVIEW_GetNextListItem(infoPtr, item))
943 {
944 if (!ISVISIBLE(item) && order > 0)
945 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
946 item->visibleOrder = order;
947 order += item->iIntegral;
948 }
949
950 infoPtr->maxVisibleOrder = order;
951
952 for (item = start; item != NULL;
953 item = TREEVIEW_GetNextListItem(infoPtr, item))
954 {
955 TREEVIEW_ComputeItemRect(infoPtr, item);
956 }
957 }
958
959
960 /* Update metrics of all items in selected subtree.
961 * root must be expanded
962 */
963 static VOID
964 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
965 {
966 TREEVIEW_ITEM *sibling;
967 HDC hdc;
968 HFONT hOldFont;
969
970 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
971 return;
972
973 root->state &= ~TVIS_EXPANDED;
974 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
975 root->state |= TVIS_EXPANDED;
976
977 hdc = GetDC(infoPtr->hwnd);
978 hOldFont = SelectObject(hdc, infoPtr->hFont);
979
980 for (; root != sibling;
981 root = TREEVIEW_GetNextListItem(infoPtr, root))
982 {
983 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
984
985 if (root->callbackMask & TVIF_TEXT)
986 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
987
988 if (root->textWidth == 0)
989 {
990 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
991 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
992 }
993 }
994
995 SelectObject(hdc, hOldFont);
996 ReleaseDC(infoPtr->hwnd, hdc);
997 }
998
999 /* Item Allocation **********************************************************/
1000
1001 static TREEVIEW_ITEM *
1002 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
1003 {
1004 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1005
1006 if (!newItem)
1007 return NULL;
1008
1009 /* I_IMAGENONE would make more sense but this is neither what is
1010 * documented (MSDN doesn't specify) nor what Windows actually does
1011 * (it sets it to zero)... and I can so imagine an application using
1012 * inc/dec to toggle the images. */
1013 newItem->iImage = 0;
1014 newItem->iSelectedImage = 0;
1015 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1016 newItem->infoPtr = infoPtr;
1017
1018 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1019 {
1020 Free(newItem);
1021 return NULL;
1022 }
1023
1024 return newItem;
1025 }
1026
1027 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1028 * free item->pszText. */
1029 static void
1030 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1031 {
1032 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1033 if (infoPtr->selectedItem == item)
1034 infoPtr->selectedItem = NULL;
1035 if (infoPtr->hotItem == item)
1036 infoPtr->hotItem = NULL;
1037 if (infoPtr->focusedItem == item)
1038 infoPtr->focusedItem = NULL;
1039 if (infoPtr->firstVisible == item)
1040 infoPtr->firstVisible = NULL;
1041 if (infoPtr->dropItem == item)
1042 infoPtr->dropItem = NULL;
1043 if (infoPtr->insertMarkItem == item)
1044 infoPtr->insertMarkItem = NULL;
1045 Free(item);
1046 }
1047
1048
1049 /* Item Insertion *******************************************************/
1050
1051 /***************************************************************************
1052 * This method inserts newItem before sibling as a child of parent.
1053 * sibling can be NULL, but only if parent has no children.
1054 */
1055 static void
1056 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1057 TREEVIEW_ITEM *parent)
1058 {
1059 assert(parent != NULL);
1060
1061 if (sibling != NULL)
1062 {
1063 assert(sibling->parent == parent);
1064
1065 if (sibling->prevSibling != NULL)
1066 sibling->prevSibling->nextSibling = newItem;
1067
1068 newItem->prevSibling = sibling->prevSibling;
1069 sibling->prevSibling = newItem;
1070 }
1071 else
1072 newItem->prevSibling = NULL;
1073
1074 newItem->nextSibling = sibling;
1075
1076 if (parent->firstChild == sibling)
1077 parent->firstChild = newItem;
1078
1079 if (parent->lastChild == NULL)
1080 parent->lastChild = newItem;
1081 }
1082
1083 /***************************************************************************
1084 * This method inserts newItem after sibling as a child of parent.
1085 * sibling can be NULL, but only if parent has no children.
1086 */
1087 static void
1088 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1089 TREEVIEW_ITEM *parent)
1090 {
1091 assert(parent != NULL);
1092
1093 if (sibling != NULL)
1094 {
1095 assert(sibling->parent == parent);
1096
1097 if (sibling->nextSibling != NULL)
1098 sibling->nextSibling->prevSibling = newItem;
1099
1100 newItem->nextSibling = sibling->nextSibling;
1101 sibling->nextSibling = newItem;
1102 }
1103 else
1104 newItem->nextSibling = NULL;
1105
1106 newItem->prevSibling = sibling;
1107
1108 if (parent->lastChild == sibling)
1109 parent->lastChild = newItem;
1110
1111 if (parent->firstChild == NULL)
1112 parent->firstChild = newItem;
1113 }
1114
1115 static BOOL
1116 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1117 const TVITEMEXW *tvItem, BOOL isW)
1118 {
1119 UINT callbackClear = 0;
1120 UINT callbackSet = 0;
1121
1122 TRACE("item %p\n", item);
1123 /* Do this first in case it fails. */
1124 if (tvItem->mask & TVIF_TEXT)
1125 {
1126 item->textWidth = 0; /* force width recalculation */
1127 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1128 {
1129 int len;
1130 LPWSTR newText;
1131 if (isW)
1132 len = lstrlenW(tvItem->pszText) + 1;
1133 else
1134 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1135
1136 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 item->pszText = newText;
1143 item->cchTextMax = len;
1144 if (isW)
1145 lstrcpynW(item->pszText, tvItem->pszText, len);
1146 else
1147 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1148 item->pszText, len);
1149
1150 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1151 }
1152 else
1153 {
1154 callbackSet |= TVIF_TEXT;
1155
1156 item->pszText = ReAlloc(item->pszText,
1157 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1158 item->cchTextMax = TEXT_CALLBACK_SIZE;
1159 TRACE("setting callback, item %p\n", item);
1160 }
1161 }
1162
1163 if (tvItem->mask & TVIF_CHILDREN)
1164 {
1165 item->cChildren = tvItem->cChildren;
1166
1167 if (item->cChildren == I_CHILDRENCALLBACK)
1168 callbackSet |= TVIF_CHILDREN;
1169 else
1170 callbackClear |= TVIF_CHILDREN;
1171 }
1172
1173 if (tvItem->mask & TVIF_IMAGE)
1174 {
1175 item->iImage = tvItem->iImage;
1176
1177 if (item->iImage == I_IMAGECALLBACK)
1178 callbackSet |= TVIF_IMAGE;
1179 else
1180 callbackClear |= TVIF_IMAGE;
1181 }
1182
1183 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1184 {
1185 item->iSelectedImage = tvItem->iSelectedImage;
1186
1187 if (item->iSelectedImage == I_IMAGECALLBACK)
1188 callbackSet |= TVIF_SELECTEDIMAGE;
1189 else
1190 callbackClear |= TVIF_SELECTEDIMAGE;
1191 }
1192
1193 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1194 {
1195 item->iExpandedImage = tvItem->iExpandedImage;
1196
1197 if (item->iExpandedImage == I_IMAGECALLBACK)
1198 callbackSet |= TVIF_EXPANDEDIMAGE;
1199 else
1200 callbackClear |= TVIF_EXPANDEDIMAGE;
1201 }
1202
1203 if (tvItem->mask & TVIF_PARAM)
1204 item->lParam = tvItem->lParam;
1205
1206 /* If the application sets TVIF_INTEGRAL without
1207 * supplying a TVITEMEX structure, it's toast. */
1208 if (tvItem->mask & TVIF_INTEGRAL)
1209 item->iIntegral = tvItem->iIntegral;
1210
1211 if (tvItem->mask & TVIF_STATE)
1212 {
1213 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1214 tvItem->stateMask);
1215 item->state &= ~tvItem->stateMask;
1216 item->state |= (tvItem->state & tvItem->stateMask);
1217 }
1218
1219 if (tvItem->mask & TVIF_STATEEX)
1220 {
1221 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1222 }
1223
1224 item->callbackMask |= callbackSet;
1225 item->callbackMask &= ~callbackClear;
1226
1227 return TRUE;
1228 }
1229
1230 /* Note that the new item is pre-zeroed. */
1231 static LRESULT
1232 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1233 {
1234 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1235 HTREEITEM insertAfter;
1236 TREEVIEW_ITEM *newItem, *parentItem;
1237 BOOL bTextUpdated = FALSE;
1238
1239 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1240 {
1241 parentItem = infoPtr->root;
1242 }
1243 else
1244 {
1245 parentItem = ptdi->hParent;
1246
1247 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1248 {
1249 WARN("invalid parent %p\n", parentItem);
1250 return 0;
1251 }
1252 }
1253
1254 insertAfter = ptdi->hInsertAfter;
1255
1256 /* Validate this now for convenience. */
1257 switch ((DWORD_PTR)insertAfter)
1258 {
1259 case (DWORD_PTR)TVI_FIRST:
1260 case (DWORD_PTR)TVI_LAST:
1261 case (DWORD_PTR)TVI_SORT:
1262 break;
1263
1264 default:
1265 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1266 insertAfter->parent != parentItem)
1267 {
1268 WARN("invalid insert after %p\n", insertAfter);
1269 insertAfter = TVI_LAST;
1270 }
1271 }
1272
1273 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1274 (tvItem->mask & TVIF_TEXT)
1275 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1276 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1277 : "<no label>");
1278
1279 newItem = TREEVIEW_AllocateItem(infoPtr);
1280 if (newItem == NULL)
1281 return 0;
1282
1283 newItem->parent = parentItem;
1284 newItem->iIntegral = 1;
1285 newItem->visibleOrder = -1;
1286
1287 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1288 return 0;
1289
1290 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1291
1292 infoPtr->uNumItems++;
1293
1294 switch ((DWORD_PTR)insertAfter)
1295 {
1296 case (DWORD_PTR)TVI_FIRST:
1297 {
1298 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1299 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1300 if (infoPtr->firstVisible == originalFirst)
1301 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1302 }
1303 break;
1304
1305 case (DWORD_PTR)TVI_LAST:
1306 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1307 break;
1308
1309 /* hInsertAfter names a specific item we want to insert after */
1310 default:
1311 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1312 break;
1313
1314 case (DWORD_PTR)TVI_SORT:
1315 {
1316 TREEVIEW_ITEM *aChild;
1317 TREEVIEW_ITEM *previousChild = NULL;
1318 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1319 BOOL bItemInserted = FALSE;
1320
1321 aChild = parentItem->firstChild;
1322
1323 bTextUpdated = TRUE;
1324 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1325
1326 /* Iterate the parent children to see where we fit in */
1327 while (aChild != NULL)
1328 {
1329 INT comp;
1330
1331 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1332 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1333
1334 if (comp < 0) /* we are smaller than the current one */
1335 {
1336 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1337 if (infoPtr->firstVisible == originalFirst &&
1338 aChild == originalFirst)
1339 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1340 bItemInserted = TRUE;
1341 break;
1342 }
1343 else if (comp > 0) /* we are bigger than the current one */
1344 {
1345 previousChild = aChild;
1346
1347 /* This will help us to exit if there is no more sibling */
1348 aChild = (aChild->nextSibling == 0)
1349 ? NULL
1350 : aChild->nextSibling;
1351
1352 /* Look at the next item */
1353 continue;
1354 }
1355 else if (comp == 0)
1356 {
1357 /*
1358 * An item with this name is already existing, therefore,
1359 * we add after the one we found
1360 */
1361 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1362 bItemInserted = TRUE;
1363 break;
1364 }
1365 }
1366
1367 /*
1368 * we reach the end of the child list and the item has not
1369 * yet been inserted, therefore, insert it after the last child.
1370 */
1371 if ((!bItemInserted) && (aChild == NULL))
1372 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1373
1374 break;
1375 }
1376 }
1377
1378
1379 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1380 newItem->parent, tvItem->mask);
1381
1382 newItem->iLevel = newItem->parent->iLevel + 1;
1383
1384 if (newItem->parent->cChildren == 0)
1385 newItem->parent->cChildren = 1;
1386
1387 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1388 {
1389 if (STATEIMAGEINDEX(newItem->state) == 0)
1390 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1391 }
1392
1393 if (infoPtr->firstVisible == NULL)
1394 infoPtr->firstVisible = newItem;
1395
1396 TREEVIEW_VerifyTree(infoPtr);
1397
1398 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1399
1400 if (parentItem == infoPtr->root ||
1401 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1402 {
1403 TREEVIEW_ITEM *item;
1404 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1405
1406 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1407 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1408
1409 if (!bTextUpdated)
1410 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1411
1412 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1413 TREEVIEW_UpdateScrollBars(infoPtr);
1414 /*
1415 * if the item was inserted in a visible part of the tree,
1416 * invalidate it, as well as those after it
1417 */
1418 for (item = newItem;
1419 item != NULL;
1420 item = TREEVIEW_GetNextListItem(infoPtr, item))
1421 TREEVIEW_Invalidate(infoPtr, item);
1422 }
1423 else
1424 {
1425 /* refresh treeview if newItem is the first item inserted under parentItem */
1426 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1427 {
1428 /* parent got '+' - update it */
1429 TREEVIEW_Invalidate(infoPtr, parentItem);
1430 }
1431 }
1432
1433 return (LRESULT)newItem;
1434 }
1435
1436 /* Item Deletion ************************************************************/
1437 static void
1438 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1439
1440 static void
1441 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1442 {
1443 TREEVIEW_ITEM *kill = parentItem->firstChild;
1444
1445 while (kill != NULL)
1446 {
1447 TREEVIEW_ITEM *next = kill->nextSibling;
1448
1449 TREEVIEW_RemoveItem(infoPtr, kill);
1450
1451 kill = next;
1452 }
1453
1454 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1455 assert(parentItem->firstChild == NULL);
1456 assert(parentItem->lastChild == NULL);
1457 }
1458
1459 static void
1460 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1461 {
1462 TREEVIEW_ITEM *parentItem;
1463
1464 assert(item != NULL);
1465 assert(item->parent != NULL); /* i.e. it must not be the root */
1466
1467 parentItem = item->parent;
1468
1469 if (parentItem->firstChild == item)
1470 parentItem->firstChild = item->nextSibling;
1471
1472 if (parentItem->lastChild == item)
1473 parentItem->lastChild = item->prevSibling;
1474
1475 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1476 && parentItem->cChildren > 0)
1477 parentItem->cChildren = 0;
1478
1479 if (item->prevSibling)
1480 item->prevSibling->nextSibling = item->nextSibling;
1481
1482 if (item->nextSibling)
1483 item->nextSibling->prevSibling = item->prevSibling;
1484 }
1485
1486 static void
1487 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1488 {
1489 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1490
1491 if (item->firstChild)
1492 TREEVIEW_RemoveAllChildren(infoPtr, item);
1493
1494 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1495 TVIF_HANDLE | TVIF_PARAM, item, 0);
1496
1497 TREEVIEW_UnlinkItem(item);
1498
1499 infoPtr->uNumItems--;
1500
1501 if (item->pszText != LPSTR_TEXTCALLBACKW)
1502 Free(item->pszText);
1503
1504 TREEVIEW_FreeItem(infoPtr, item);
1505 }
1506
1507
1508 /* Empty out the tree. */
1509 static void
1510 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1511 {
1512 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1513
1514 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1515 }
1516
1517 static LRESULT
1518 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1519 {
1520 TREEVIEW_ITEM *newSelection = NULL;
1521 TREEVIEW_ITEM *newFirstVisible = NULL;
1522 TREEVIEW_ITEM *parent, *prev = NULL;
1523 BOOL visible = FALSE;
1524
1525 if (item == TVI_ROOT || !item)
1526 {
1527 TRACE("TVI_ROOT\n");
1528 parent = infoPtr->root;
1529 newSelection = NULL;
1530 visible = TRUE;
1531 TREEVIEW_RemoveTree(infoPtr);
1532 }
1533 else
1534 {
1535 if (!TREEVIEW_ValidItem(infoPtr, item))
1536 return FALSE;
1537
1538 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1539 parent = item->parent;
1540
1541 if (ISVISIBLE(item))
1542 {
1543 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1544 visible = TRUE;
1545 }
1546
1547 if (infoPtr->selectedItem != NULL
1548 && (item == infoPtr->selectedItem
1549 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1550 {
1551 if (item->nextSibling)
1552 newSelection = item->nextSibling;
1553 else if (item->parent != infoPtr->root)
1554 newSelection = item->parent;
1555 else
1556 newSelection = item->prevSibling;
1557 TRACE("newSelection = %p\n", newSelection);
1558 }
1559
1560 if (infoPtr->firstVisible == item)
1561 {
1562 visible = TRUE;
1563 if (item->nextSibling)
1564 newFirstVisible = item->nextSibling;
1565 else if (item->prevSibling)
1566 newFirstVisible = item->prevSibling;
1567 else if (item->parent != infoPtr->root)
1568 newFirstVisible = item->parent;
1569 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1570 }
1571 else
1572 newFirstVisible = infoPtr->firstVisible;
1573
1574 TREEVIEW_RemoveItem(infoPtr, item);
1575 }
1576
1577 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1578 if (!infoPtr->selectedItem && newSelection)
1579 {
1580 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1581 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1582 }
1583
1584 /* Validate insertMark dropItem.
1585 * hotItem ??? - used for comparison only.
1586 */
1587 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1588 infoPtr->insertMarkItem = 0;
1589
1590 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1591 infoPtr->dropItem = 0;
1592
1593 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1594 newFirstVisible = infoPtr->root->firstChild;
1595
1596 TREEVIEW_VerifyTree(infoPtr);
1597
1598 if (visible)
1599 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1600
1601 if (!infoPtr->bRedraw) return TRUE;
1602
1603 if (visible)
1604 {
1605 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1606 TREEVIEW_UpdateScrollBars(infoPtr);
1607 TREEVIEW_Invalidate(infoPtr, NULL);
1608 }
1609 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1610 {
1611 /* parent lost '+/-' - update it */
1612 TREEVIEW_Invalidate(infoPtr, parent);
1613 }
1614
1615 return TRUE;
1616 }
1617
1618
1619 /* Get/Set Messages *********************************************************/
1620 static LRESULT
1621 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1622 {
1623 infoPtr->bRedraw = wParam != 0;
1624
1625 if (infoPtr->bRedraw)
1626 {
1627 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1628 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1629 TREEVIEW_UpdateScrollBars(infoPtr);
1630 TREEVIEW_Invalidate(infoPtr, NULL);
1631 }
1632 return 0;
1633 }
1634
1635 static LRESULT
1636 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1637 {
1638 TRACE("\n");
1639 return infoPtr->uIndent;
1640 }
1641
1642 static LRESULT
1643 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1644 {
1645 TRACE("\n");
1646
1647 if (newIndent < MINIMUM_INDENT)
1648 newIndent = MINIMUM_INDENT;
1649
1650 if (infoPtr->uIndent != newIndent)
1651 {
1652 infoPtr->uIndent = newIndent;
1653 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1654 TREEVIEW_UpdateScrollBars(infoPtr);
1655 TREEVIEW_Invalidate(infoPtr, NULL);
1656 }
1657
1658 return 0;
1659 }
1660
1661
1662 static LRESULT
1663 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1664 {
1665 TRACE("\n");
1666 return (LRESULT)infoPtr->hwndToolTip;
1667 }
1668
1669 static LRESULT
1670 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1671 {
1672 HWND prevToolTip;
1673
1674 TRACE("\n");
1675 prevToolTip = infoPtr->hwndToolTip;
1676 infoPtr->hwndToolTip = hwndTT;
1677
1678 return (LRESULT)prevToolTip;
1679 }
1680
1681 static LRESULT
1682 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1683 {
1684 BOOL rc = infoPtr->bNtfUnicode;
1685 infoPtr->bNtfUnicode = fUnicode;
1686 return rc;
1687 }
1688
1689 static LRESULT
1690 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1691 {
1692 return infoPtr->bNtfUnicode;
1693 }
1694
1695 static LRESULT
1696 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1697 {
1698 return infoPtr->uScrollTime;
1699 }
1700
1701 static LRESULT
1702 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1703 {
1704 UINT uOldScrollTime = infoPtr->uScrollTime;
1705
1706 infoPtr->uScrollTime = min(uScrollTime, 100);
1707
1708 return uOldScrollTime;
1709 }
1710
1711
1712 static LRESULT
1713 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1714 {
1715 TRACE("\n");
1716
1717 switch (wParam)
1718 {
1719 case TVSIL_NORMAL:
1720 return (LRESULT)infoPtr->himlNormal;
1721
1722 case TVSIL_STATE:
1723 return (LRESULT)infoPtr->himlState;
1724
1725 default:
1726 return 0;
1727 }
1728 }
1729
1730 #define TVHEIGHT_MIN 16
1731 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1732
1733 /* Compute the natural height for items. */
1734 static UINT
1735 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1736 {
1737 TEXTMETRICW tm;
1738 HDC hdc = GetDC(0);
1739 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1740 UINT height;
1741
1742 /* Height is the maximum of:
1743 * 16 (a hack because our fonts are tiny), and
1744 * The text height + border & margin, and
1745 * The size of the normal image list
1746 */
1747 GetTextMetricsW(hdc, &tm);
1748 SelectObject(hdc, hOldFont);
1749 ReleaseDC(0, hdc);
1750
1751 height = TVHEIGHT_MIN;
1752 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1753 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1754 if (height < infoPtr->normalImageHeight)
1755 height = infoPtr->normalImageHeight;
1756
1757 /* Round down, unless we support odd ("non even") heights. */
1758 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1759 height &= ~1;
1760
1761 return height;
1762 }
1763
1764 static LRESULT
1765 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1766 {
1767 HIMAGELIST himlOld = 0;
1768 int oldWidth = infoPtr->normalImageWidth;
1769 int oldHeight = infoPtr->normalImageHeight;
1770
1771 TRACE("%u,%p\n", type, himlNew);
1772
1773 switch (type)
1774 {
1775 case TVSIL_NORMAL:
1776 himlOld = infoPtr->himlNormal;
1777 infoPtr->himlNormal = himlNew;
1778
1779 if (himlNew)
1780 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1781 &infoPtr->normalImageHeight);
1782 else
1783 {
1784 infoPtr->normalImageWidth = 0;
1785 infoPtr->normalImageHeight = 0;
1786 }
1787
1788 break;
1789
1790 case TVSIL_STATE:
1791 himlOld = infoPtr->himlState;
1792 infoPtr->himlState = himlNew;
1793
1794 if (himlNew)
1795 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1796 &infoPtr->stateImageHeight);
1797 else
1798 {
1799 infoPtr->stateImageWidth = 0;
1800 infoPtr->stateImageHeight = 0;
1801 }
1802
1803 break;
1804
1805 default:
1806 ERR("unknown imagelist type %u\n", type);
1807 }
1808
1809 if (oldWidth != infoPtr->normalImageWidth ||
1810 oldHeight != infoPtr->normalImageHeight)
1811 {
1812 BOOL bRecalcVisible = FALSE;
1813
1814 if (oldHeight != infoPtr->normalImageHeight &&
1815 !infoPtr->bHeightSet)
1816 {
1817 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1818 bRecalcVisible = TRUE;
1819 }
1820
1821 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1822 infoPtr->normalImageWidth != infoPtr->uIndent)
1823 {
1824 infoPtr->uIndent = infoPtr->normalImageWidth;
1825 bRecalcVisible = TRUE;
1826 }
1827
1828 if (bRecalcVisible)
1829 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1830
1831 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1832 TREEVIEW_UpdateScrollBars(infoPtr);
1833 }
1834
1835 TREEVIEW_Invalidate(infoPtr, NULL);
1836
1837 return (LRESULT)himlOld;
1838 }
1839
1840 static LRESULT
1841 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1842 {
1843 INT prevHeight = infoPtr->uItemHeight;
1844
1845 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1846 if (newHeight == -1)
1847 {
1848 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1849 infoPtr->bHeightSet = FALSE;
1850 }
1851 else
1852 {
1853 if (newHeight == 0) newHeight = 1;
1854 infoPtr->uItemHeight = newHeight;
1855 infoPtr->bHeightSet = TRUE;
1856 }
1857
1858 /* Round down, unless we support odd ("non even") heights. */
1859 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1860 {
1861 infoPtr->uItemHeight &= ~1;
1862 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1863 }
1864
1865 if (infoPtr->uItemHeight != prevHeight)
1866 {
1867 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1868 TREEVIEW_UpdateScrollBars(infoPtr);
1869 TREEVIEW_Invalidate(infoPtr, NULL);
1870 }
1871
1872 return prevHeight;
1873 }
1874
1875 static LRESULT
1876 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1877 {
1878 TRACE("\n");
1879 return infoPtr->uItemHeight;
1880 }
1881
1882
1883 static LRESULT
1884 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1885 {
1886 TRACE("%p\n", infoPtr->hFont);
1887 return (LRESULT)infoPtr->hFont;
1888 }
1889
1890
1891 static INT CALLBACK
1892 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1893 {
1894 (void)unused;
1895
1896 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1897
1898 return 1;
1899 }
1900
1901 static LRESULT
1902 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1903 {
1904 UINT uHeight = infoPtr->uItemHeight;
1905
1906 TRACE("%p %i\n", hFont, bRedraw);
1907
1908 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1909
1910 DeleteObject(infoPtr->hBoldFont);
1911 DeleteObject(infoPtr->hUnderlineFont);
1912 DeleteObject(infoPtr->hBoldUnderlineFont);
1913 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1914 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1915 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1916
1917 if (!infoPtr->bHeightSet)
1918 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1919
1920 if (uHeight != infoPtr->uItemHeight)
1921 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1922
1923 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1924
1925 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1926 TREEVIEW_UpdateScrollBars(infoPtr);
1927
1928 if (bRedraw)
1929 TREEVIEW_Invalidate(infoPtr, NULL);
1930
1931 return 0;
1932 }
1933
1934
1935 static LRESULT
1936 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1937 {
1938 TRACE("\n");
1939 return (LRESULT)infoPtr->clrLine;
1940 }
1941
1942 static LRESULT
1943 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1944 {
1945 COLORREF prevColor = infoPtr->clrLine;
1946
1947 TRACE("\n");
1948 infoPtr->clrLine = color;
1949 return (LRESULT)prevColor;
1950 }
1951
1952
1953 static LRESULT
1954 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1955 {
1956 TRACE("\n");
1957 return (LRESULT)infoPtr->clrText;
1958 }
1959
1960 static LRESULT
1961 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1962 {
1963 COLORREF prevColor = infoPtr->clrText;
1964
1965 TRACE("\n");
1966 infoPtr->clrText = color;
1967
1968 if (infoPtr->clrText != prevColor)
1969 TREEVIEW_Invalidate(infoPtr, NULL);
1970
1971 return (LRESULT)prevColor;
1972 }
1973
1974
1975 static LRESULT
1976 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1977 {
1978 TRACE("\n");
1979 return (LRESULT)infoPtr->clrBk;
1980 }
1981
1982 static LRESULT
1983 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1984 {
1985 COLORREF prevColor = infoPtr->clrBk;
1986
1987 TRACE("\n");
1988 infoPtr->clrBk = newColor;
1989
1990 if (newColor != prevColor)
1991 TREEVIEW_Invalidate(infoPtr, NULL);
1992
1993 return (LRESULT)prevColor;
1994 }
1995
1996
1997 static LRESULT
1998 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1999 {
2000 TRACE("\n");
2001 return (LRESULT)infoPtr->clrInsertMark;
2002 }
2003
2004 static LRESULT
2005 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
2006 {
2007 COLORREF prevColor = infoPtr->clrInsertMark;
2008
2009 TRACE("0x%08x\n", color);
2010 infoPtr->clrInsertMark = color;
2011
2012 return (LRESULT)prevColor;
2013 }
2014
2015
2016 static LRESULT
2017 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2018 {
2019 TRACE("%d %p\n", wParam, item);
2020
2021 if (!TREEVIEW_ValidItem(infoPtr, item))
2022 return 0;
2023
2024 infoPtr->insertBeforeorAfter = wParam;
2025 infoPtr->insertMarkItem = item;
2026
2027 TREEVIEW_Invalidate(infoPtr, NULL);
2028
2029 return 1;
2030 }
2031
2032
2033 /************************************************************************
2034 * Some serious braindamage here. lParam is a pointer to both the
2035 * input HTREEITEM and the output RECT.
2036 */
2037 static LRESULT
2038 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2039 {
2040 TREEVIEW_ITEM *item;
2041 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2042
2043 TRACE("\n");
2044
2045 if (pItem == NULL)
2046 return FALSE;
2047
2048 item = *pItem;
2049 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2050 return FALSE;
2051
2052 /*
2053 * If wParam is TRUE return the text size otherwise return
2054 * the whole item size
2055 */
2056 if (fTextRect)
2057 {
2058 /* Windows does not send TVN_GETDISPINFO here. */
2059
2060 lpRect->top = item->rect.top;
2061 lpRect->bottom = item->rect.bottom;
2062
2063 lpRect->left = item->textOffset;
2064 if (!item->textWidth)
2065 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2066
2067 lpRect->right = item->textOffset + item->textWidth + 4;
2068 }
2069 else
2070 {
2071 *lpRect = item->rect;
2072 }
2073
2074 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2075
2076 return TRUE;
2077 }
2078
2079 static inline LRESULT
2080 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2081 {
2082 /* Surprise! This does not take integral height into account. */
2083 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2084 return infoPtr->clientHeight / infoPtr->uItemHeight;
2085 }
2086
2087
2088 static LRESULT
2089 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2090 {
2091 TREEVIEW_ITEM *item = tvItem->hItem;
2092
2093 if (!TREEVIEW_ValidItem(infoPtr, item))
2094 {
2095 BOOL valid_item = FALSE;
2096 if (!item) return FALSE;
2097
2098 __TRY
2099 {
2100 infoPtr = item->infoPtr;
2101 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2102 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2103 }
2104 __EXCEPT_PAGE_FAULT
2105 {
2106 }
2107 __ENDTRY
2108 if (!valid_item) return FALSE;
2109 }
2110
2111 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2112
2113 if (tvItem->mask & TVIF_CHILDREN)
2114 {
2115 if (item->cChildren==I_CHILDRENCALLBACK)
2116 FIXME("I_CHILDRENCALLBACK not supported\n");
2117 tvItem->cChildren = item->cChildren;
2118 }
2119
2120 if (tvItem->mask & TVIF_HANDLE)
2121 tvItem->hItem = item;
2122
2123 if (tvItem->mask & TVIF_IMAGE)
2124 tvItem->iImage = item->iImage;
2125
2126 if (tvItem->mask & TVIF_INTEGRAL)
2127 tvItem->iIntegral = item->iIntegral;
2128
2129 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2130 tvItem->lParam = item->lParam;
2131
2132 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2133 tvItem->iSelectedImage = item->iSelectedImage;
2134
2135 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2136 tvItem->iExpandedImage = item->iExpandedImage;
2137
2138 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2139 tvItem->state = item->state;
2140
2141 if (tvItem->mask & TVIF_TEXT)
2142 {
2143 if (item->pszText == NULL)
2144 {
2145 if (tvItem->cchTextMax > 0)
2146 tvItem->pszText[0] = '\0';
2147 }
2148 else if (isW)
2149 {
2150 if (item->pszText == LPSTR_TEXTCALLBACKW)
2151 {
2152 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2153 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2154 }
2155 else
2156 {
2157 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2158 }
2159 }
2160 else
2161 {
2162 if (item->pszText == LPSTR_TEXTCALLBACKW)
2163 {
2164 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2165 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2166 }
2167 else
2168 {
2169 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2170 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2171 }
2172 }
2173 }
2174
2175 if (tvItem->mask & TVIF_STATEEX)
2176 {
2177 FIXME("Extended item state not supported, returning 0.\n");
2178 tvItem->uStateEx = 0;
2179 }
2180
2181 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2182 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2183
2184 return TRUE;
2185 }
2186
2187 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2188 * which is wrong. */
2189 static LRESULT
2190 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2191 {
2192 TREEVIEW_ITEM *item;
2193 TREEVIEW_ITEM originalItem;
2194
2195 item = tvItem->hItem;
2196
2197 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2198 tvItem->mask);
2199
2200 if (!TREEVIEW_ValidItem(infoPtr, item))
2201 return FALSE;
2202
2203 /* store the original item values */
2204 originalItem = *item;
2205
2206 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2207 return FALSE;
2208
2209 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2210 if ((tvItem->mask & TVIF_TEXT
2211 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2212 && ISVISIBLE(item))
2213 {
2214 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2215 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2216 }
2217
2218 if (tvItem->mask != 0 && ISVISIBLE(item))
2219 {
2220 /* The refresh updates everything, but we can't wait until then. */
2221 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2222
2223 /* if any of the item's values changed and it's not a callback, redraw the item */
2224 if (item_changed(&originalItem, item, tvItem))
2225 {
2226 if (tvItem->mask & TVIF_INTEGRAL)
2227 {
2228 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2229 TREEVIEW_UpdateScrollBars(infoPtr);
2230
2231 TREEVIEW_Invalidate(infoPtr, NULL);
2232 }
2233 else
2234 {
2235 TREEVIEW_UpdateScrollBars(infoPtr);
2236 TREEVIEW_Invalidate(infoPtr, item);
2237 }
2238 }
2239 }
2240
2241 return TRUE;
2242 }
2243
2244 static LRESULT
2245 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2246 {
2247 TRACE("\n");
2248
2249 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2250 return 0;
2251
2252 return (item->state & mask);
2253 }
2254
2255 static LRESULT
2256 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2257 {
2258 TREEVIEW_ITEM *retval;
2259
2260 retval = 0;
2261
2262 /* handle all the global data here */
2263 switch (which)
2264 {
2265 case TVGN_CHILD: /* Special case: child of 0 is root */
2266 if (item)
2267 break;
2268 /* fall through */
2269 case TVGN_ROOT:
2270 retval = infoPtr->root->firstChild;
2271 break;
2272
2273 case TVGN_CARET:
2274 retval = infoPtr->selectedItem;
2275 break;
2276
2277 case TVGN_FIRSTVISIBLE:
2278 retval = infoPtr->firstVisible;
2279 break;
2280
2281 case TVGN_DROPHILITE:
2282 retval = infoPtr->dropItem;
2283 break;
2284
2285 case TVGN_LASTVISIBLE:
2286 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2287 break;
2288 }
2289
2290 if (retval)
2291 {
2292 TRACE("flags:0x%x, returns %p\n", which, retval);
2293 return (LRESULT)retval;
2294 }
2295
2296 if (item == TVI_ROOT) item = infoPtr->root;
2297
2298 if (!TREEVIEW_ValidItem(infoPtr, item))
2299 return FALSE;
2300
2301 switch (which)
2302 {
2303 case TVGN_NEXT:
2304 retval = item->nextSibling;
2305 break;
2306 case TVGN_PREVIOUS:
2307 retval = item->prevSibling;
2308 break;
2309 case TVGN_PARENT:
2310 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2311 break;
2312 case TVGN_CHILD:
2313 retval = item->firstChild;
2314 break;
2315 case TVGN_NEXTVISIBLE:
2316 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2317 break;
2318 case TVGN_PREVIOUSVISIBLE:
2319 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2320 break;
2321 default:
2322 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2323 break;
2324 }
2325
2326 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2327 return (LRESULT)retval;
2328 }
2329
2330
2331 static LRESULT
2332 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2333 {
2334 TRACE(" %d\n", infoPtr->uNumItems);
2335 return (LRESULT)infoPtr->uNumItems;
2336 }
2337
2338 static VOID
2339 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2340 {
2341 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2342 {
2343 static const unsigned int state_table[] = { 0, 2, 1 };
2344
2345 unsigned int state;
2346
2347 state = STATEIMAGEINDEX(item->state);
2348 TRACE("state: 0x%x\n", state);
2349 item->state &= ~TVIS_STATEIMAGEMASK;
2350
2351 if (state < 3)
2352 state = state_table[state];
2353
2354 item->state |= INDEXTOSTATEIMAGEMASK(state);
2355
2356 TRACE("state: 0x%x\n", state);
2357 TREEVIEW_Invalidate(infoPtr, item);
2358 }
2359 }
2360
2361
2362 /* Painting *************************************************************/
2363
2364 /* Draw the lines and expand button for an item. Also draws one section
2365 * of the line from item's parent to item's parent's next sibling. */
2366 static void
2367 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2368 {
2369 LONG centerx, centery;
2370 BOOL lar = ((infoPtr->dwStyle
2371 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2372 > TVS_LINESATROOT);
2373 HBRUSH hbr, hbrOld;
2374 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2375
2376 if (!lar && item->iLevel == 0)
2377 return;
2378
2379 hbr = CreateSolidBrush(clrBk);
2380 hbrOld = SelectObject(hdc, hbr);
2381
2382 centerx = (item->linesOffset + item->stateOffset) / 2;
2383 centery = (item->rect.top + item->rect.bottom) / 2;
2384
2385 if (infoPtr->dwStyle & TVS_HASLINES)
2386 {
2387 HPEN hOldPen, hNewPen;
2388 HTREEITEM parent;
2389 LOGBRUSH lb;
2390
2391 /* Get a dotted grey pen */
2392 lb.lbStyle = BS_SOLID;
2393 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2394 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2395 hOldPen = SelectObject(hdc, hNewPen);
2396
2397 /* Make sure the center is on a dot (using +2 instead
2398 * of +1 gives us pixel-by-pixel compat with native) */
2399 centery = (centery + 2) & ~1;
2400
2401 MoveToEx(hdc, item->stateOffset, centery, NULL);
2402 LineTo(hdc, centerx - 1, centery);
2403
2404 if (item->prevSibling || item->parent != infoPtr->root)
2405 {
2406 MoveToEx(hdc, centerx, item->rect.top, NULL);
2407 LineTo(hdc, centerx, centery);
2408 }
2409
2410 if (item->nextSibling)
2411 {
2412 MoveToEx(hdc, centerx, centery, NULL);
2413 LineTo(hdc, centerx, item->rect.bottom + 1);
2414 }
2415
2416 /* Draw the line from our parent to its next sibling. */
2417 parent = item->parent;
2418 while (parent != infoPtr->root)
2419 {
2420 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2421
2422 if (parent->nextSibling
2423 /* skip top-levels unless TVS_LINESATROOT */
2424 && parent->stateOffset > parent->linesOffset)
2425 {
2426 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2427 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2428 }
2429
2430 parent = parent->parent;
2431 }
2432
2433 SelectObject(hdc, hOldPen);
2434 DeleteObject(hNewPen);
2435 }
2436
2437 /*
2438 * Display the (+/-) signs
2439 */
2440
2441 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2442 {
2443 if (item->cChildren)
2444 {
2445 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2446 if (theme)
2447 {
2448 RECT glyphRect = item->rect;
2449 glyphRect.left = item->linesOffset;
2450 glyphRect.right = item->stateOffset;
2451 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2452 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2453 &glyphRect, NULL);
2454 }
2455 else
2456 {
2457 LONG height = item->rect.bottom - item->rect.top;
2458 LONG width = item->stateOffset - item->linesOffset;
2459 LONG rectsize = min(height, width) / 4;
2460 /* plussize = ceil(rectsize * 3/4) */
2461 LONG plussize = (rectsize + 1) * 3 / 4;
2462
2463 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2464 HPEN old_pen = SelectObject(hdc, new_pen);
2465
2466 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2467 centerx + rectsize + 2, centery + rectsize + 2);
2468
2469 SelectObject(hdc, old_pen);
2470 DeleteObject(new_pen);
2471
2472 /* draw +/- signs with current text color */
2473 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2474 old_pen = SelectObject(hdc, new_pen);
2475
2476 if (height < 18 || width < 18)
2477 {
2478 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2479 LineTo(hdc, centerx + plussize, centery);
2480
2481 if (!(item->state & TVIS_EXPANDED) ||
2482 (item->state & TVIS_EXPANDPARTIAL))
2483 {
2484 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2485 LineTo(hdc, centerx, centery + plussize);
2486 }
2487 }
2488 else
2489 {
2490 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2491 centerx + plussize, centery + 2);
2492
2493 if (!(item->state & TVIS_EXPANDED) ||
2494 (item->state & TVIS_EXPANDPARTIAL))
2495 {
2496 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2497 centerx + 2, centery + plussize);
2498 SetPixel(hdc, centerx - 1, centery, clrBk);
2499 SetPixel(hdc, centerx + 1, centery, clrBk);
2500 }
2501 }
2502
2503 SelectObject(hdc, old_pen);
2504 DeleteObject(new_pen);
2505 }
2506 }
2507 }
2508 SelectObject(hdc, hbrOld);
2509 DeleteObject(hbr);
2510 }
2511
2512 static void
2513 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2514 {
2515 INT cditem;
2516 HFONT hOldFont;
2517 COLORREF oldTextColor, oldTextBkColor;
2518 int centery;
2519 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2520 NMTVCUSTOMDRAW nmcdhdr;
2521
2522 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2523
2524 /* - If item is drop target or it is selected and window is in focus -
2525 * use blue background (COLOR_HIGHLIGHT).
2526 * - If item is selected, window is not in focus, but it has style
2527 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2528 * - Otherwise - use background color
2529 */
2530 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2531 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2532 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2533 {
2534 if ((item->state & TVIS_DROPHILITED) || inFocus)
2535 {
2536 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2537 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2538 }
2539 else
2540 {
2541 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2542 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2543 }
2544 }
2545 else
2546 {
2547 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2548 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2549 nmcdhdr.clrText = comctl32_color.clrHighlight;
2550 else
2551 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2552 }
2553
2554 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2555
2556 /* The custom draw handler can query the text rectangle,
2557 * so get ready. */
2558 /* should already be known, set to 0 when changed */
2559 if (!item->textWidth)
2560 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2561
2562 cditem = 0;
2563
2564 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2565 {
2566 cditem = TREEVIEW_SendCustomDrawItemNotify
2567 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2568 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2569
2570 if (cditem & CDRF_SKIPDEFAULT)
2571 {
2572 SelectObject(hdc, hOldFont);
2573 return;
2574 }
2575 }
2576
2577 if (cditem & CDRF_NEWFONT)
2578 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2579
2580 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2581
2582 /* Set colors. Custom draw handler can change these so we do this after it. */
2583 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2584 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2585
2586 centery = (item->rect.top + item->rect.bottom) / 2;
2587
2588 /*
2589 * Display the images associated with this item
2590 */
2591 {
2592 INT imageIndex;
2593
2594 /* State images are displayed to the left of the Normal image
2595 * image number is in state; zero should be `display no image'.
2596 */
2597 imageIndex = STATEIMAGEINDEX(item->state);
2598
2599 if (infoPtr->himlState && imageIndex)
2600 {
2601 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2602 item->stateOffset,
2603 centery - infoPtr->stateImageHeight / 2,
2604 ILD_NORMAL);
2605 }
2606
2607 /* Now, draw the normal image; can be either selected,
2608 * non-selected or expanded image.
2609 */
2610
2611 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2612 {
2613 /* The item is currently selected */
2614 imageIndex = item->iSelectedImage;
2615 }
2616 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2617 {
2618 /* The item is currently not selected but expanded */
2619 imageIndex = item->iExpandedImage;
2620 }
2621 else
2622 {
2623 /* The item is not selected and not expanded */
2624 imageIndex = item->iImage;
2625 }
2626
2627 if (infoPtr->himlNormal)
2628 {
2629 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2630
2631 style |= item->state & TVIS_OVERLAYMASK;
2632
2633 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2634 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2635 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2636 style);
2637 }
2638 }
2639
2640
2641 /*
2642 * Display the text associated with this item
2643 */
2644
2645 /* Don't paint item's text if it's being edited */
2646 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2647 {
2648 if (item->pszText)
2649 {
2650 RECT rcText;
2651 UINT align;
2652 SIZE sz;
2653
2654 rcText.top = item->rect.top;
2655 rcText.bottom = item->rect.bottom;
2656 rcText.left = item->textOffset;
2657 rcText.right = rcText.left + item->textWidth + 4;
2658
2659 TRACE("drawing text %s at (%s)\n",
2660 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2661
2662 /* Draw it */
2663 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2664
2665 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2666 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2667 ETO_CLIPPED | ETO_OPAQUE,
2668 &rcText,
2669 item->pszText,
2670 lstrlenW(item->pszText),
2671 NULL);
2672 SetTextAlign(hdc, align);
2673
2674 /* Draw focus box around the selected item */
2675 if ((item == infoPtr->selectedItem) && inFocus)
2676 {
2677 DrawFocusRect(hdc,&rcText);
2678 }
2679 }
2680 }
2681
2682 /* Draw insertion mark if necessary */
2683
2684 if (infoPtr->insertMarkItem)
2685 TRACE("item:%d,mark:%p\n",
2686 TREEVIEW_GetItemIndex(infoPtr, item),
2687 infoPtr->insertMarkItem);
2688
2689 if (item == infoPtr->insertMarkItem)
2690 {
2691 HPEN hNewPen, hOldPen;
2692 int offset;
2693 int left, right;
2694
2695 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2696 hOldPen = SelectObject(hdc, hNewPen);
2697
2698 if (infoPtr->insertBeforeorAfter)
2699 offset = item->rect.bottom - 1;
2700 else
2701 offset = item->rect.top + 1;
2702
2703 left = item->textOffset - 2;
2704 right = item->textOffset + item->textWidth + 2;
2705
2706 MoveToEx(hdc, left, offset - 3, NULL);
2707 LineTo(hdc, left, offset + 4);
2708
2709 MoveToEx(hdc, left, offset, NULL);
2710 LineTo(hdc, right + 1, offset);
2711
2712 MoveToEx(hdc, right, offset + 3, NULL);
2713 LineTo(hdc, right, offset - 4);
2714
2715 SelectObject(hdc, hOldPen);
2716 DeleteObject(hNewPen);
2717 }
2718
2719 /* Restore the hdc state */
2720 SetTextColor(hdc, oldTextColor);
2721 SetBkColor(hdc, oldTextBkColor);
2722 SelectObject(hdc, hOldFont);
2723
2724 if (cditem & CDRF_NOTIFYPOSTPAINT)
2725 {
2726 cditem = TREEVIEW_SendCustomDrawItemNotify
2727 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2728 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2729 }
2730 }
2731
2732 /* Computes treeHeight and treeWidth and updates the scroll bars.
2733 */
2734 static void
2735 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2736 {
2737 TREEVIEW_ITEM *item;
2738 HWND hwnd = infoPtr->hwnd;
2739 BOOL vert = FALSE;
2740 BOOL horz = FALSE;
2741 SCROLLINFO si;
2742 LONG scrollX = infoPtr->scrollX;
2743
2744 infoPtr->treeWidth = 0;
2745 infoPtr->treeHeight = 0;
2746
2747 /* We iterate through all visible items in order to get the tree height
2748 * and width */
2749 item = infoPtr->root->firstChild;
2750
2751 while (item != NULL)
2752 {
2753 if (ISVISIBLE(item))
2754 {
2755 /* actually we draw text at textOffset + 2 */
2756 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2757 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2758
2759 /* This is scroll-adjusted, but we fix this below. */
2760 infoPtr->treeHeight = item->rect.bottom;
2761 }
2762
2763 item = TREEVIEW_GetNextListItem(infoPtr, item);
2764 }
2765
2766 /* Fix the scroll adjusted treeHeight and treeWidth. */
2767 if (infoPtr->root->firstChild)
2768 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2769
2770 infoPtr->treeWidth += infoPtr->scrollX;
2771
2772 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2773
2774 /* Adding one scroll bar may take up enough space that it forces us
2775 * to add the other as well. */
2776 if (infoPtr->treeHeight > infoPtr->clientHeight)
2777 {
2778 vert = TRUE;
2779
2780 if (infoPtr->treeWidth
2781 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2782 horz = TRUE;
2783 }
2784 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2785 horz = TRUE;
2786
2787 if (!vert && horz && infoPtr->treeHeight
2788 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2789 vert = TRUE;
2790
2791 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2792
2793 si.cbSize = sizeof(SCROLLINFO);
2794 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2795 si.nMin = 0;
2796
2797 if (vert)
2798 {
2799 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2800 if ( si.nPage && NULL != infoPtr->firstVisible)
2801 {
2802 si.nPos = infoPtr->firstVisible->visibleOrder;
2803 si.nMax = infoPtr->maxVisibleOrder - 1;
2804
2805 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2806
2807 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2808 ShowScrollBar(hwnd, SB_VERT, TRUE);
2809 infoPtr->uInternalStatus |= TV_VSCROLL;
2810 }
2811 else
2812 {
2813 if (infoPtr->uInternalStatus & TV_VSCROLL)
2814 ShowScrollBar(hwnd, SB_VERT, FALSE);
2815 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2816 }
2817 }
2818 else
2819 {
2820 if (infoPtr->uInternalStatus & TV_VSCROLL)
2821 ShowScrollBar(hwnd, SB_VERT, FALSE);
2822 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2823 }
2824
2825 if (horz)
2826 {
2827 si.nPage = infoPtr->clientWidth;
2828 si.nPos = infoPtr->scrollX;
2829 si.nMax = infoPtr->treeWidth - 1;
2830
2831 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2832 {
2833 si.nPos = si.nMax - max( si.nPage-1, 0 );
2834 scrollX = si.nPos;
2835 }
2836
2837 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2838 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2839 infoPtr->uInternalStatus |= TV_HSCROLL;
2840
2841 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2842 TREEVIEW_HScroll(infoPtr,
2843 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2844 }
2845 else
2846 {
2847 if (infoPtr->uInternalStatus & TV_HSCROLL)
2848 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2849 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2850
2851 scrollX = 0;
2852 if (infoPtr->scrollX != 0)
2853 {
2854 TREEVIEW_HScroll(infoPtr,
2855 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2856 }
2857 }
2858
2859 if (!horz)
2860 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2861 }
2862
2863 static void
2864 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2865 {
2866 HBRUSH hBrush;
2867 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2868
2869 hBrush = CreateSolidBrush(clrBk);
2870 FillRect(hdc, rc, hBrush);
2871 DeleteObject(hBrush);
2872 }
2873
2874 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2875 static LRESULT
2876 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2877 {
2878 RECT rect;
2879
2880 TRACE("%p\n", infoPtr);
2881
2882 GetClientRect(infoPtr->hwnd, &rect);
2883 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2884
2885 return 1;
2886 }
2887
2888 static void
2889 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2890 {
2891 HWND hwnd = infoPtr->hwnd;
2892 RECT rect = *rc;
2893 TREEVIEW_ITEM *item;
2894
2895 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2896 {
2897 TRACE("empty window\n");
2898 return;
2899 }
2900
2901 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2902 hdc, rect);
2903
2904 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2905 {
2906 ReleaseDC(hwnd, hdc);
2907 return;
2908 }
2909
2910 for (item = infoPtr->root->firstChild;
2911 item != NULL;
2912 item = TREEVIEW_GetNextListItem(infoPtr, item))
2913 {
2914 if (ISVISIBLE(item))
2915 {
2916 /* Avoid unneeded calculations */
2917 if (item->rect.top > rect.bottom)
2918 break;
2919 if (item->rect.bottom < rect.top)
2920 continue;
2921
2922 TREEVIEW_DrawItem(infoPtr, hdc, item);
2923 }
2924 }
2925
2926 TREEVIEW_UpdateScrollBars(infoPtr);
2927
2928 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2929 infoPtr->cdmode =
2930 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2931 }
2932
2933 static inline void
2934 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2935 {
2936 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2937 }
2938
2939 static void
2940 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2941 {
2942 if (item)
2943 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2944 else
2945 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2946 }
2947
2948 static void
2949 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2950 {
2951 RECT rc;
2952 HBITMAP hbm, hbmOld;
2953 HDC hdc, hdcScreen;
2954 int nIndex;
2955
2956 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2957
2958 hdcScreen = GetDC(0);
2959
2960 hdc = CreateCompatibleDC(hdcScreen);
2961 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2962 hbmOld = SelectObject(hdc, hbm);
2963
2964 SetRect(&rc, 0, 0, 48, 16);
2965 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2966
2967 SetRect(&rc, 18, 2, 30, 14);
2968 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2969 DFCS_BUTTONCHECK|DFCS_FLAT);
2970
2971 SetRect(&rc, 34, 2, 46, 14);
2972 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2973 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2974
2975 SelectObject(hdc, hbmOld);
2976 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2977 comctl32_color.clrWindow);
2978 TRACE("checkbox index %d\n", nIndex);
2979
2980 DeleteObject(hbm);
2981 DeleteDC(hdc);
2982 ReleaseDC(0, hdcScreen);
2983
2984 infoPtr->stateImageWidth = 16;
2985 infoPtr->stateImageHeight = 16;
2986 }
2987
2988 static void
2989 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2990 {
2991 TREEVIEW_ITEM *child = item->firstChild;
2992
2993 item->state &= ~TVIS_STATEIMAGEMASK;
2994 item->state |= INDEXTOSTATEIMAGEMASK(1);
2995
2996 while (child)
2997 {
2998 TREEVIEW_ITEM *next = child->nextSibling;
2999 TREEVIEW_ResetImageStateIndex(infoPtr, child);
3000 child = next;
3001 }
3002 }
3003
3004 static LRESULT
3005 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
3006 {
3007 HDC hdc;
3008 PAINTSTRUCT ps;
3009 RECT rc;
3010
3011 TRACE("(%p %p)\n", infoPtr, hdc_ref);
3012
3013 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
3014 {
3015 TREEVIEW_InitCheckboxes(infoPtr);
3016 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3017
3018 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
3019 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3020 TREEVIEW_UpdateScrollBars(infoPtr);
3021 TREEVIEW_Invalidate(infoPtr, NULL);
3022 }
3023
3024 if (hdc_ref)
3025 {
3026 hdc = hdc_ref;
3027 GetClientRect(infoPtr->hwnd, &rc);
3028 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3029 }
3030 else
3031 {
3032 hdc = BeginPaint(infoPtr->hwnd, &ps);
3033 rc = ps.rcPaint;
3034 if(ps.fErase)
3035 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3036 }
3037
3038 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3039 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3040
3041 if (!hdc_ref)
3042 EndPaint(infoPtr->hwnd, &ps);
3043
3044 return 0;
3045 }
3046
3047 static LRESULT
3048 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3049 {
3050 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3051
3052 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3053 return 0;
3054
3055 if (options & PRF_ERASEBKGND)
3056 TREEVIEW_EraseBackground(infoPtr, hdc);
3057
3058 if (options & PRF_CLIENT)
3059 {
3060 RECT rc;
3061 GetClientRect(infoPtr->hwnd, &rc);
3062 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3063 }
3064
3065 return 0;
3066 }
3067
3068 /* Sorting **************************************************************/
3069
3070 /***************************************************************************
3071 * Forward the DPA local callback to the treeview owner callback
3072 */
3073 static INT WINAPI
3074 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3075 const TVSORTCB *pCallBackSort)
3076 {
3077 /* Forward the call to the client-defined callback */
3078 return pCallBackSort->lpfnCompare(first->lParam,
3079 second->lParam,
3080 pCallBackSort->lParam);
3081 }
3082
3083 /***************************************************************************
3084 * Treeview native sort routine: sort on item text.
3085 */
3086 static INT WINAPI
3087 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3088 const TREEVIEW_INFO *infoPtr)
3089 {
3090 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3091 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3092
3093 if(first->pszText && second->pszText)
3094 return lstrcmpiW(first->pszText, second->pszText);
3095 else if(first->pszText)
3096 return -1;
3097 else if(second->pszText)
3098 return 1;
3099 else
3100 return 0;
3101 }
3102
3103 /* Returns the number of physical children belonging to item. */
3104 static INT
3105 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3106 {
3107 INT cChildren = 0;
3108 HTREEITEM hti;
3109
3110 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3111 cChildren++;
3112
3113 return cChildren;
3114 }
3115
3116 /* Returns a DPA containing a pointer to each physical child of item in
3117 * sibling order. If item has no children, an empty DPA is returned. */
3118 static HDPA
3119 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3120 {
3121 HTREEITEM child;
3122
3123 HDPA list = DPA_Create(8);
3124 if (list == 0) return NULL;
3125
3126 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3127 {
3128 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3129 {
3130 DPA_Destroy(list);
3131 return NULL;
3132 }
3133 }
3134
3135 return list;
3136 }
3137
3138 /***************************************************************************
3139 * Setup the treeview structure with regards of the sort method
3140 * and sort the children of the TV item specified in lParam
3141 * fRecurse: currently unused. Should be zero.
3142 * parent: if pSort!=NULL, should equal pSort->hParent.
3143 * otherwise, item which child items are to be sorted.
3144 * pSort: sort method info. if NULL, sort on item text.
3145 * if non-NULL, sort on item's lParam content, and let the
3146 * application decide what that means. See also TVM_SORTCHILDRENCB.
3147 */
3148
3149 static LRESULT
3150 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3151 LPTVSORTCB pSort)
3152 {
3153 INT cChildren;
3154 PFNDPACOMPARE pfnCompare;
3155 LPARAM lpCompare;
3156
3157 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3158 if (parent == TVI_ROOT || parent == NULL)
3159 parent = infoPtr->root;
3160
3161 /* Check for a valid handle to the parent item */
3162 if (!TREEVIEW_ValidItem(infoPtr, parent))
3163 {
3164 ERR("invalid item hParent=%p\n", parent);
3165 return FALSE;
3166 }
3167
3168 if (pSort)
3169 {
3170 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3171 lpCompare = (LPARAM)pSort;
3172 }
3173 else
3174 {
3175 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3176 lpCompare = (LPARAM)infoPtr;
3177 }
3178
3179 cChildren = TREEVIEW_CountChildren(parent);
3180
3181 /* Make sure there is something to sort */
3182 if (cChildren > 1)
3183 {
3184 /* TREEVIEW_ITEM rechaining */
3185 INT count = 0;
3186 HTREEITEM item = 0;
3187 HTREEITEM nextItem = 0;
3188 HTREEITEM prevItem = 0;
3189
3190 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3191
3192 if (sortList == NULL)
3193 return FALSE;
3194
3195 /* let DPA sort the list */
3196 DPA_Sort(sortList, pfnCompare, lpCompare);
3197
3198 /* The order of DPA entries has been changed, so fixup the
3199 * nextSibling and prevSibling pointers. */
3200
3201 item = DPA_GetPtr(sortList, count++);
3202 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3203 {
3204 /* link the two current item together */
3205 item->nextSibling = nextItem;
3206 nextItem->prevSibling = item;
3207
3208 if (prevItem == NULL)
3209 {
3210 /* this is the first item, update the parent */
3211 parent->firstChild = item;
3212 item->prevSibling = NULL;
3213 }
3214 else
3215 {
3216 /* fix the back chaining */
3217 item->prevSibling = prevItem;
3218 }
3219
3220 /* get ready for the next one */
3221 prevItem = item;
3222 item = nextItem;
3223 }
3224
3225 /* the last item is pointed to by item and never has a sibling */
3226 item->nextSibling = NULL;
3227 parent->lastChild = item;
3228
3229 DPA_Destroy(sortList);
3230
3231 TREEVIEW_VerifyTree(infoPtr);
3232
3233 if (parent->state & TVIS_EXPANDED)
3234 {
3235 int visOrder = infoPtr->firstVisible->visibleOrder;
3236
3237 if (parent == infoPtr->root)
3238 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3239 else
3240 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3241
3242 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3243 {
3244 TREEVIEW_ITEM *item;
3245
3246 for (item = infoPtr->root->firstChild; item != NULL;
3247 item = TREEVIEW_GetNextListItem(infoPtr, item))
3248 {
3249 if (item->visibleOrder == visOrder)
3250 break;
3251 }
3252
3253 if (!item) item = parent->firstChild;
3254 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3255 }
3256
3257 TREEVIEW_Invalidate(infoPtr, NULL);
3258 }
3259
3260 return TRUE;
3261 }
3262 return FALSE;
3263 }
3264
3265
3266 /***************************************************************************
3267 * Setup the treeview structure with regards of the sort method
3268 * and sort the children of the TV item specified in lParam
3269 */
3270 static LRESULT
3271 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3272 {
3273 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3274 }
3275
3276
3277 /***************************************************************************
3278 * Sort the children of the TV item specified in lParam.
3279 */
3280 static LRESULT
3281 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3282 {
3283 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3284 }
3285
3286
3287 /* Expansion/Collapse ***************************************************/
3288
3289 static BOOL
3290 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3291 UINT action)
3292 {
3293 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3294 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3295 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3296 0, item);
3297 }
3298
3299 static VOID
3300 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3301 UINT action)
3302 {
3303 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3304 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3305 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3306 0, item);
3307 }
3308
3309
3310 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3311 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3312 static BOOL
3313 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3314 BOOL bRemoveChildren, BOOL bUser)
3315 {
3316 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3317 BOOL bSetSelection, bSetFirstVisible;
3318 RECT scrollRect;
3319 LONG scrollDist = 0;
3320 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3321 BOOL wasExpanded;
3322
3323 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3324
3325 if (!TREEVIEW_HasChildren(infoPtr, item))
3326 return FALSE;
3327
3328 if (bUser)
3329 TREEVIEW_SendExpanding(infoPtr, item, action);
3330
3331 if (item->firstChild == NULL)
3332 return FALSE;
3333
3334 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3335 item->state &= ~TVIS_EXPANDED;
3336
3337 if (wasExpanded && bUser)
3338 TREEVIEW_SendExpanded(infoPtr, item, action);
3339
3340 bSetSelection = (infoPtr->selectedItem != NULL
3341 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3342
3343 bSetFirstVisible = (infoPtr->firstVisible != NULL
3344 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3345
3346 tmpItem = item;
3347 while (tmpItem)
3348 {
3349 if (tmpItem->nextSibling)
3350 {
3351 nextItem = tmpItem->nextSibling;
3352 break;
3353 }
3354 tmpItem = tmpItem->parent;
3355 }
3356
3357 if (nextItem)
3358 scrollDist = nextItem->rect.top;
3359
3360 if (bRemoveChildren)
3361 {
3362 INT old_cChildren = item->cChildren;
3363 TRACE("TVE_COLLAPSERESET\n");
3364 item->state &= ~TVIS_EXPANDEDONCE;
3365 TREEVIEW_RemoveAllChildren(infoPtr, item);
3366 item->cChildren = old_cChildren;
3367 }
3368 if (!wasExpanded)
3369 return FALSE;
3370
3371 if (item->firstChild)
3372 {
3373 TREEVIEW_ITEM *i, *sibling;
3374
3375 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3376
3377 for (i = item->firstChild; i != sibling;
3378 i = TREEVIEW_GetNextListItem(infoPtr, i))
3379 {
3380 i->visibleOrder = -1;
3381 }
3382 }
3383
3384 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3385
3386 if (nextItem)
3387 scrollDist = -(scrollDist - nextItem->rect.top);
3388
3389 if (bSetSelection)
3390 {
3391 /* Don't call DoSelectItem, it sends notifications. */
3392 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3393 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3394 item->state |= TVIS_SELECTED;
3395 infoPtr->selectedItem = item;
3396 }
3397
3398 TREEVIEW_UpdateScrollBars(infoPtr);
3399
3400 scrollRect.left = 0;
3401 scrollRect.right = infoPtr->clientWidth;
3402 scrollRect.bottom = infoPtr->clientHeight;
3403
3404 if (nextItem)
3405 {
3406 scrollRect.top = nextItem->rect.top;
3407
3408 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3409 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3410 TREEVIEW_Invalidate(infoPtr, item);
3411 } else {
3412 scrollRect.top = item->rect.top;
3413 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3414 }
3415
3416 TREEVIEW_SetFirstVisible(infoPtr,
3417 bSetFirstVisible ? item : infoPtr->firstVisible,
3418 TRUE);
3419
3420 return wasExpanded;
3421 }
3422
3423 static BOOL
3424 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3425 BOOL partial, BOOL user)
3426 {
3427 LONG scrollDist;
3428 LONG orgNextTop = 0;
3429 RECT scrollRect;
3430 TREEVIEW_ITEM *nextItem, *tmpItem;
3431 BOOL sendsNotifications;
3432
3433 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3434
3435 if (!TREEVIEW_HasChildren(infoPtr, item))
3436 return FALSE;
3437
3438 tmpItem = item; nextItem = NULL;
3439 while (tmpItem)
3440 {
3441 if (tmpItem->nextSibling)
3442 {
3443 nextItem = tmpItem->nextSibling;
3444 break;
3445 }
3446 tmpItem = tmpItem->parent;
3447 }
3448
3449 if (nextItem)
3450 orgNextTop = nextItem->rect.top;
3451
3452 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3453
3454 sendsNotifications = user || ((item->cChildren != 0) &&
3455 !(item->state & TVIS_EXPANDEDONCE));
3456 if (sendsNotifications)
3457 {
3458 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3459 {
3460 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3461 return FALSE;
3462 }
3463 }
3464 if (!item->firstChild)
3465 return FALSE;
3466
3467 item->state |= TVIS_EXPANDED;
3468
3469 if (partial)
3470 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3471
3472 if (ISVISIBLE(item))
3473 {
3474 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3475 TREEVIEW_UpdateSubTree(infoPtr, item);
3476 TREEVIEW_UpdateScrollBars(infoPtr);
3477
3478 scrollRect.left = 0;
3479 scrollRect.bottom = infoPtr->treeHeight;
3480 scrollRect.right = infoPtr->clientWidth;
3481 if (nextItem)
3482 {
3483 scrollDist = nextItem->rect.top - orgNextTop;
3484 scrollRect.top = orgNextTop;
3485
3486 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3487 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3488 TREEVIEW_Invalidate (infoPtr, item);
3489 } else {
3490 scrollRect.top = item->rect.top;
3491 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3492 }
3493
3494 /* Scroll up so that as many children as possible are visible.
3495 * This fails when expanding causes an HScroll bar to appear, but we
3496 * don't know that yet, so the last item is obscured. */
3497 if (item->firstChild != NULL)
3498 {
3499 int nChildren = item->lastChild->visibleOrder
3500 - item->firstChild->visibleOrder + 1;
3501
3502 int visible_pos = item->visibleOrder
3503 - infoPtr->firstVisible->visibleOrder;
3504
3505 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3506
3507 if (visible_pos > 0 && nChildren > rows_below)
3508 {
3509 int scroll = nChildren - rows_below;
3510
3511 if (scroll > visible_pos)
3512 scroll = visible_pos;
3513
3514 if (scroll > 0)
3515 {
3516 TREEVIEW_ITEM *newFirstVisible
3517 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3518 scroll);
3519
3520
3521 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3522 }
3523 }
3524 }
3525 }
3526
3527 if (sendsNotifications) {
3528 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3529 item->state |= TVIS_EXPANDEDONCE;
3530 }
3531
3532 return TRUE;
3533 }
3534
3535 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3536 to mouse messages and TVM_SELECTITEM.
3537
3538 selection - previously selected item, used to collapse a part of a tree
3539 item - new selected item
3540 */
3541 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3542 HTREEITEM selection, HTREEITEM item)
3543 {
3544 TREEVIEW_ITEM *prev, *curr;
3545
3546 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3547
3548 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3549
3550 /*
3551 * Close the previous item and its ancestors as long as they are not
3552 * ancestors of the current item
3553 */
3554 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3555 {
3556 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3557 {
3558 if (curr == prev)
3559 goto finish;
3560 }
3561 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3562 }
3563
3564 finish:
3565 /*
3566 * Expand the current item
3567 */
3568 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3569 }
3570
3571 static BOOL
3572 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3573 {
3574 TRACE("item=%p, user=%d\n", item, user);
3575
3576 if (item->state & TVIS_EXPANDED)
3577 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3578 else
3579 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3580 }
3581
3582 static VOID
3583 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3584 {
3585 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3586
3587 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3588 {
3589 if (TREEVIEW_HasChildren(infoPtr, item))
3590 TREEVIEW_ExpandAll(infoPtr, item);
3591 }
3592 }
3593
3594 /* Note:If the specified item is the child of a collapsed parent item,
3595 the parent's list of child items is (recursively) expanded to reveal the
3596 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3597 know if it also applies here.
3598 */
3599
3600 static LRESULT
3601 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3602 {
3603 if (!TREEVIEW_ValidItem(infoPtr, item))
3604 return 0;
3605
3606 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3607 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3608 flag, item->state);
3609
3610 switch (flag & TVE_TOGGLE)
3611 {
3612 case TVE_COLLAPSE:
3613 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3614 FALSE);
3615
3616 case TVE_EXPAND:
3617 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3618 FALSE);
3619
3620 case TVE_TOGGLE:
3621 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3622
3623 default:
3624 return 0;
3625 }
3626 }
3627
3628 /* Hit-Testing **********************************************************/
3629
3630 static TREEVIEW_ITEM *
3631 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3632 {
3633 TREEVIEW_ITEM *item;
3634 LONG row;
3635
3636 if (!infoPtr->firstVisible)
3637 return NULL;
3638
3639 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3640
3641 for (item = infoPtr->firstVisible; item != NULL;
3642 item = TREEVIEW_GetNextListItem(infoPtr, item))
3643 {
3644 if (row >= item->visibleOrder
3645 && row < item->visibleOrder + item->iIntegral)
3646 break;
3647 }
3648
3649 return item;
3650 }
3651
3652 static TREEVIEW_ITEM *
3653 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3654 {
3655 TREEVIEW_ITEM *item;
3656 RECT rect;
3657 UINT status;
3658 LONG x, y;
3659
3660 lpht->hItem = 0;
3661 GetClientRect(infoPtr->hwnd, &rect);
3662 status = 0;
3663 x = lpht->pt.x;
3664 y = lpht->pt.y;
3665
3666 if (x < rect.left)
3667 {
3668 status |= TVHT_TOLEFT;
3669 }
3670 else if (x > rect.right)
3671 {
3672 status |= TVHT_TORIGHT;
3673 }
3674
3675 if (y < rect.top)
3676 {
3677 status |= TVHT_ABOVE;
3678 }
3679 else if (y > rect.bottom)
3680 {
3681 status |= TVHT_BELOW;
3682 }
3683
3684 if (status)
3685 {
3686 lpht->flags = status;
3687 return NULL;
3688 }
3689
3690 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3691 if (!item)
3692 {
3693 lpht->flags = TVHT_NOWHERE;
3694 return NULL;
3695 }
3696
3697 if (x >= item->textOffset + item->textWidth)
3698 {
3699 lpht->flags = TVHT_ONITEMRIGHT;
3700 }
3701 else if (x >= item->textOffset)
3702 {
3703 lpht->flags = TVHT_ONITEMLABEL;
3704 }
3705 else if (x >= item->imageOffset)
3706 {
3707 lpht->flags = TVHT_ONITEMICON;
3708 }
3709 else if (x >= item->stateOffset)
3710 {
3711 lpht->flags = TVHT_ONITEMSTATEICON;
3712 }
3713 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3714 {
3715 lpht->flags = TVHT_ONITEMBUTTON;
3716 }
3717 else
3718 {
3719 lpht->flags = TVHT_ONITEMINDENT;
3720 }
3721
3722 lpht->hItem = item;
3723 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3724
3725 return item;
3726 }
3727
3728 /* Item Label Editing ***************************************************/
3729
3730 static LRESULT
3731 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3732 {
3733 return (LRESULT)infoPtr->hwndEdit;
3734 }
3735
3736 static LRESULT CALLBACK
3737 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3738 {
3739 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3740 BOOL bCancel = FALSE;
3741 LRESULT rc;
3742
3743 switch (uMsg)
3744 {
3745 case WM_PAINT:
3746 TRACE("WM_PAINT start\n");
3747 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3748 lParam);
3749 TRACE("WM_PAINT done\n");
3750 return rc;
3751
3752 case WM_KILLFOCUS:
3753 if (infoPtr->bIgnoreEditKillFocus)
3754 return TRUE;
3755 break;
3756
3757 case WM_DESTROY:
3758 {
3759 WNDPROC editProc = infoPtr->wpEditOrig;
3760 infoPtr->wpEditOrig = 0;
3761 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3762 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3763 }
3764
3765 case WM_GETDLGCODE:
3766 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3767
3768 case WM_KEYDOWN:
3769 if (wParam == VK_ESCAPE)
3770 {
3771 bCancel = TRUE;
3772 break;
3773 }
3774 else if (wParam == VK_RETURN)
3775 {
3776 break;
3777 }
3778
3779 /* fall through */
3780 default:
3781 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3782 }
3783
3784 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3785 /* eg. Using a messagebox */
3786
3787 infoPtr->bIgnoreEditKillFocus = TRUE;
3788 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3789 infoPtr->bIgnoreEditKillFocus = FALSE;
3790
3791 return 0;
3792 }
3793
3794
3795 /* should handle edit control messages here */
3796
3797 static LRESULT
3798 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3799 {
3800 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3801
3802 switch (HIWORD(wParam))
3803 {
3804 case EN_UPDATE:
3805 {
3806 /*
3807 * Adjust the edit window size
3808 */
3809 WCHAR buffer[1024];
3810 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3811 HDC hdc = GetDC(infoPtr->hwndEdit);
3812 SIZE sz;
3813 HFONT hFont, hOldFont = 0;
3814
3815 TRACE("edit=%p\n", infoPtr->hwndEdit);
3816
3817 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3818
3819 infoPtr->bLabelChanged = TRUE;
3820
3821 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3822
3823 /* Select font to get the right dimension of the string */
3824 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3825
3826 if (hFont != 0)
3827 {
3828 hOldFont = SelectObject(hdc, hFont);
3829 }
3830
3831 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3832 {
3833 TEXTMETRICW textMetric;
3834
3835 /* Add Extra spacing for the next character */
3836 GetTextMetricsW(hdc, &textMetric);
3837 sz.cx += (textMetric.tmMaxCharWidth * 2);
3838
3839 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3840 sz.cx = min(sz.cx,
3841 infoPtr->clientWidth - editItem->textOffset + 2);
3842
3843 SetWindowPos(infoPtr->hwndEdit,
3844 HWND_TOP,
3845 0,
3846 0,
3847 sz.cx,
3848 editItem->rect.bottom - editItem->rect.top + 3,
3849 SWP_NOMOVE | SWP_DRAWFRAME);
3850 }
3851
3852 if (hFont != 0)
3853 {
3854 SelectObject(hdc, hOldFont);
3855 }
3856
3857 ReleaseDC(infoPtr->hwnd, hdc);
3858 break;
3859 }
3860 case EN_KILLFOCUS:
3861 /* apparently we should respect passed handle value */
3862 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3863
3864 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3865 break;
3866
3867 default:
3868 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3869 }
3870
3871 return 0;
3872 }
3873
3874 static HWND
3875 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3876 {
3877 HWND hwnd = infoPtr->hwnd;
3878 HWND hwndEdit;
3879 SIZE sz;
3880 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3881 HDC hdc;
3882 HFONT hOldFont=0;
3883 TEXTMETRICW textMetric;
3884
3885 TRACE("%p %p\n", hwnd, hItem);
3886 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3887 return NULL;
3888
3889 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3890 return NULL;
3891
3892 if (infoPtr->hwndEdit)
3893 return infoPtr->hwndEdit;
3894
3895 infoPtr->bLabelChanged = FALSE;
3896
3897 /* make edit item visible */
3898 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3899
3900 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3901
3902 hdc = GetDC(hwnd);
3903 /* Select the font to get appropriate metric dimensions */
3904 if (infoPtr->hFont != 0)
3905 {
3906 hOldFont = SelectObject(hdc, infoPtr->hFont);
3907 }
3908
3909 /* Get string length in pixels */
3910 if (hItem->pszText)
3911 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3912 &sz);
3913 else
3914 GetTextExtentPoint32A(hdc, "", 0, &sz);
3915
3916 /* Add Extra spacing for the next character */
3917 GetTextMetricsW(hdc, &textMetric);
3918 sz.cx += (textMetric.tmMaxCharWidth * 2);
3919
3920 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3921 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3922
3923 if (infoPtr->hFont != 0)
3924 {
3925 SelectObject(hdc, hOldFont);
3926 }
3927
3928 ReleaseDC(hwnd, hdc);
3929
3930 infoPtr->editItem = hItem;
3931
3932 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3933 WC_EDITW,
3934 0,
3935 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3936 WS_CLIPSIBLINGS | ES_WANTRETURN |
3937 ES_LEFT, hItem->textOffset - 2,
3938 hItem->rect.top - 1, sz.cx + 3,
3939 hItem->rect.bottom -
3940 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3941 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3942
3943 infoPtr->hwndEdit = hwndEdit;
3944
3945 /* Get a 2D border. */
3946 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3947 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3948 SetWindowLongW(hwndEdit, GWL_STYLE,
3949 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3950
3951 SendMessageW(hwndEdit, WM_SETFONT,
3952 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3953
3954 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3955 (DWORD_PTR)
3956 TREEVIEW_Edit_SubclassProc);
3957 if (hItem->pszText)
3958 SetWindowTextW(hwndEdit, hItem->pszText);
3959
3960 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3961 {
3962 DestroyWindow(hwndEdit);
3963 infoPtr->hwndEdit = 0;
3964 infoPtr->editItem = NULL;
3965 return NULL;
3966 }
3967
3968 SetFocus(hwndEdit);
3969 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3970 ShowWindow(hwndEdit, SW_SHOW);
3971
3972 return hwndEdit;
3973 }
3974
3975
3976 static LRESULT
3977 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3978 {
3979 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3980 NMTVDISPINFOW tvdi;
3981 BOOL bCommit;
3982 WCHAR tmpText[1024] = { '\0' };
3983 WCHAR *newText = tmpText;
3984 int iLength = 0;
3985
3986 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3987
3988 tvdi.item.mask = 0;
3989 tvdi.item.hItem = editedItem;
3990 tvdi.item.state = editedItem->state;
3991 tvdi.item.lParam = editedItem->lParam;
3992
3993 if (!bCancel)
3994 {
3995 if (!infoPtr->bNtfUnicode)
3996 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3997 else
3998 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3999
4000 if (iLength >= 1023)
4001 {
4002 ERR("Insufficient space to retrieve new item label\n");
4003 }
4004
4005 tvdi.item.mask = TVIF_TEXT;
4006 tvdi.item.pszText = tmpText;
4007 tvdi.item.cchTextMax = iLength + 1;
4008 }
4009 else
4010 {
4011 tvdi.item.pszText = NULL;
4012 tvdi.item.cchTextMax = 0;
4013 }
4014
4015 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4016
4017 if (!bCancel && bCommit) /* Apply the changes */
4018 {
4019 if (!infoPtr->bNtfUnicode)
4020 {
4021 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4022 newText = Alloc(len * sizeof(WCHAR));
4023 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4024 iLength = len - 1;
4025 }
4026
4027 if (strcmpW(newText, editedItem->pszText) != 0)
4028 {
4029 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4030 if (ptr == NULL)
4031 {
4032 ERR("OutOfMemory, cannot allocate space for label\n");
4033 if(newText != tmpText) Free(newText);
4034 DestroyWindow(infoPtr->hwndEdit);
4035 infoPtr->hwndEdit = 0;
4036 infoPtr->editItem = NULL;
4037 return FALSE;
4038 }
4039 else
4040 {
4041 editedItem->pszText = ptr;
4042 editedItem->cchTextMax = iLength + 1;
4043 strcpyW(editedItem->pszText, newText);
4044 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4045 }
4046 }
4047 if(newText != tmpText) Free(newText);
4048 }
4049
4050 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4051 DestroyWindow(infoPtr->hwndEdit);
4052 infoPtr->hwndEdit = 0;
4053 infoPtr->editItem = NULL;
4054 return TRUE;
4055 }
4056
4057 static LRESULT
4058 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4059 {
4060 if (wParam != TV_EDIT_TIMER)
4061 {
4062 ERR("got unknown timer\n");
4063 return 1;
4064 }
4065
4066 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4067 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4068
4069 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4070
4071 return 0;
4072 }
4073
4074
4075 /* Mouse Tracking/Drag **************************************************/
4076
4077 /***************************************************************************
4078 * This is quite unusual piece of code, but that's how it's implemented in
4079 * Windows.
4080 */
4081 static LRESULT
4082 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4083 {
4084 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4085 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4086 RECT r;
4087 MSG msg;
4088
4089 r.top = pt.y - cyDrag;
4090 r.left = pt.x - cxDrag;
4091 r.bottom = pt.y + cyDrag;
4092 r.right = pt.x + cxDrag;
4093
4094 SetCapture(infoPtr->hwnd);
4095
4096 while (1)
4097 {
4098 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4099 {
4100 if (msg.message == WM_MOUSEMOVE)
4101 {
4102 pt.x = (short)LOWORD(msg.lParam);
4103 pt.y = (short)HIWORD(msg.lParam);
4104 if (PtInRect(&r, pt))
4105 continue;
4106 else
4107 {
4108 ReleaseCapture();
4109 return 1;
4110 }
4111 }
4112 else if (msg.message >= WM_LBUTTONDOWN &&
4113 msg.message <= WM_RBUTTONDBLCLK)
4114 {
4115 break;
4116 }
4117
4118 DispatchMessageW(&msg);
4119 }
4120
4121 if (GetCapture() != infoPtr->hwnd)
4122 return 0;
4123 }
4124
4125 ReleaseCapture();
4126 return 0;
4127 }
4128
4129
4130 static LRESULT
4131 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4132 {
4133 TREEVIEW_ITEM *item;
4134 TVHITTESTINFO hit;
4135
4136 TRACE("\n");
4137 SetFocus(infoPtr->hwnd);
4138
4139 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4140 {
4141 /* If there is pending 'edit label' event - kill it now */
4142 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4143 }
4144
4145 hit.pt.x = (short)LOWORD(lParam);
4146 hit.pt.y = (short)HIWORD(lParam);
4147
4148 item = TREEVIEW_HitTest(infoPtr, &hit);
4149 if (!item)
4150 return 0;
4151 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4152
4153 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4154 { /* FIXME! */
4155 switch (hit.flags)
4156 {
4157 case TVHT_ONITEMRIGHT:
4158 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4159 break;
4160
4161 case TVHT_ONITEMINDENT:
4162 if (!(infoPtr->dwStyle & TVS_HASLINES))
4163 {
4164 break;
4165 }
4166 else
4167 {
4168 int level = hit.pt.x / infoPtr->uIndent;
4169 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4170
4171 while (item->iLevel > level)
4172 {
4173 item = item->parent;
4174 }
4175
4176 /* fall through */
4177 }
4178
4179 case TVHT_ONITEMLABEL:
4180 case TVHT_ONITEMICON:
4181 case TVHT_ONITEMBUTTON:
4182 TREEVIEW_Toggle(infoPtr, item, TRUE);
4183 break;
4184
4185 case TVHT_ONITEMSTATEICON:
4186 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4187 TREEVIEW_ToggleItemState(infoPtr, item);
4188 else
4189 TREEVIEW_Toggle(infoPtr, item, TRUE);
4190 break;
4191 }
4192 }
4193 return TRUE;
4194 }
4195
4196
4197 static LRESULT
4198 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4199 {
4200 BOOL do_track, do_select, bDoLabelEdit;
4201 HWND hwnd = infoPtr->hwnd;
4202 TVHITTESTINFO ht;
4203
4204 /* If Edit control is active - kill it and return.
4205 * The best way to do it is to set focus to itself.
4206 * Edit control subclassed procedure will automatically call
4207 * EndEditLabelNow.
4208 */
4209 if (infoPtr->hwndEdit)
4210 {
4211 SetFocus(hwnd);
4212 return 0;
4213 }
4214
4215 ht.pt.x = (short)LOWORD(lParam);
4216 ht.pt.y = (short)HIWORD(lParam);
4217
4218 TREEVIEW_HitTest(infoPtr, &ht);
4219 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4220
4221 /* update focusedItem and redraw both items */
4222 if (ht.hItem)
4223 {
4224 BOOL do_focus;
4225
4226 if (TREEVIEW_IsFullRowSelect(infoPtr))
4227 do_focus = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4228 else
4229 do_focus = ht.flags & TVHT_ONITEM;
4230
4231 if (do_focus)
4232 {
4233 infoPtr->focusedItem = ht.hItem;
4234 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4235 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4236 }
4237 }
4238
4239 if (!(infoPtr->dwStyle & TVS_DISABLEDRAGDROP))
4240 {
4241 if (TREEVIEW_IsFullRowSelect(infoPtr))
4242 do_track = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4243 else
4244 do_track = ht.flags & TVHT_ONITEM;
4245 }
4246 else
4247 do_track = FALSE;
4248
4249 /*
4250 * If the style allows editing and the node is already selected
4251 * and the click occurred on the item label...
4252 */
4253 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4254 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4255
4256 /* Send NM_CLICK right away */
4257 if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4258 goto setfocus;
4259
4260 if (ht.flags & TVHT_ONITEMBUTTON)
4261 {
4262 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4263 goto setfocus;
4264 }
4265 else if (do_track)
4266 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4267 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4268 {
4269 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4270 infoPtr->dropItem = ht.hItem;
4271
4272 /* clean up focusedItem as we dragged and won't select this item */
4273 if(infoPtr->focusedItem)
4274 {
4275 /* refresh the item that was focused */
4276 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4277 infoPtr->focusedItem = NULL;
4278
4279 /* refresh the selected item to return the filled background */
4280 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4281 }
4282
4283 return 0;
4284 }
4285 }
4286
4287 if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4288 goto setfocus;
4289
4290 if (TREEVIEW_IsFullRowSelect(infoPtr))
4291 do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT);
4292 else
4293 do_select = ht.flags & (TVHT_ONITEMICON | TVHT_ONITEMLABEL);
4294
4295 if (bDoLabelEdit)
4296 {
4297 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4298 KillTimer(hwnd, TV_EDIT_TIMER);
4299
4300 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4301 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4302 }
4303 else if (do_select)
4304 {
4305 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4306
4307 /* Select the current item */
4308 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4309 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4310 }
4311 else if (ht.flags & TVHT_ONITEMSTATEICON)
4312 {
4313 /* TVS_CHECKBOXES requires us to toggle the current state */
4314 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4315 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4316 }
4317
4318 setfocus:
4319 SetFocus(hwnd);
4320 return 0;
4321 }
4322
4323
4324 static LRESULT
4325 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4326 {
4327 TVHITTESTINFO ht;
4328
4329 if (infoPtr->hwndEdit)
4330 {
4331 SetFocus(infoPtr->hwnd);
4332 return 0;
4333 }
4334
4335 ht.pt.x = (short)LOWORD(lParam);
4336 ht.pt.y = (short)HIWORD(lParam);
4337
4338 TREEVIEW_HitTest(infoPtr, &ht);
4339
4340 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4341 {
4342 if (ht.hItem)
4343 {
4344 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4345 infoPtr->dropItem = ht.hItem;
4346 }
4347 }
4348 else
4349 {
4350 SetFocus(infoPtr->hwnd);
4351 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4352 {
4353 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4354 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4355 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4356 }
4357 }
4358
4359 return 0;
4360 }
4361
4362 static LRESULT
4363 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4364 {
4365 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4366 INT cx, cy;
4367 HDC hdc, htopdc;
4368 HWND hwtop;
4369 HBITMAP hbmp, hOldbmp;
4370 SIZE size;
4371 RECT rc;
4372 HFONT hOldFont;
4373
4374 TRACE("\n");
4375
4376 if (!(infoPtr->himlNormal))
4377 return 0;
4378
4379 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4380 return 0;
4381
4382 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4383
4384 hwtop = GetDesktopWindow();
4385 htopdc = GetDC(hwtop);
4386 hdc = CreateCompatibleDC(htopdc);
4387
4388 hOldFont = SelectObject(hdc, infoPtr->hFont);
4389
4390 if (dragItem->pszText)
4391 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4392 &size);
4393 else
4394 GetTextExtentPoint32A(hdc, "", 0, &size);
4395
4396 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4397 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4398 hOldbmp = SelectObject(hdc, hbmp);
4399
4400 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4401 size.cx += cx;
4402 if (cy > size.cy)
4403 size.cy = cy;
4404
4405 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4406 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4407 ILD_NORMAL);
4408
4409 /*
4410 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4411 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4412 */
4413
4414 /* draw item text */
4415
4416 SetRect(&rc, cx, 0, size.cx, size.cy);
4417
4418 if (dragItem->pszText)
4419 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4420 DT_LEFT);
4421
4422 SelectObject(hdc, hOldFont);
4423 SelectObject(hdc, hOldbmp);
4424
4425 ImageList_Add(infoPtr->dragList, hbmp, 0);
4426
4427 DeleteDC(hdc);
4428 DeleteObject(hbmp);
4429 ReleaseDC(hwtop, htopdc);
4430
4431 return (LRESULT)infoPtr->dragList;
4432 }
4433
4434 /* Selection ************************************************************/
4435
4436 static LRESULT
4437 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4438 INT cause)
4439 {
4440 TREEVIEW_ITEM *prevSelect;
4441
4442 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4443
4444 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state %d\n",
4445 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4446 newSelect ? newSelect->state : 0);
4447
4448 /* reset and redraw focusedItem if focusedItem was set so we don't */
4449 /* have to worry about the previously focused item when we set a new one */
4450 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4451 infoPtr->focusedItem = NULL;
4452
4453 switch (action)
4454 {
4455 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4456 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4457 /* Fall through */
4458 case TVGN_CARET:
4459 prevSelect = infoPtr->selectedItem;
4460
4461 if (prevSelect == newSelect) {
4462 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4463 break;
4464 }
4465
4466 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4467 TVN_SELCHANGINGW,
4468 cause,
4469 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4470 prevSelect,
4471 newSelect))
4472 return FALSE;
4473
4474 if (prevSelect)
4475 prevSelect->state &= ~TVIS_SELECTED;
4476 if (newSelect)
4477 newSelect->state |= TVIS_SELECTED;
4478
4479 infoPtr->selectedItem = newSelect;
4480
4481 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4482
4483 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4484 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4485
4486 TREEVIEW_SendTreeviewNotify(infoPtr,
4487 TVN_SELCHANGEDW,
4488 cause,
4489 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4490 prevSelect,
4491 newSelect);
4492 break;
4493
4494 case TVGN_DROPHILITE:
4495 prevSelect = infoPtr->dropItem;
4496
4497 if (prevSelect)
4498 prevSelect->state &= ~TVIS_DROPHILITED;
4499
4500 infoPtr->dropItem = newSelect;
4501
4502 if (newSelect)
4503 newSelect->state |= TVIS_DROPHILITED;
4504
4505 TREEVIEW_Invalidate(infoPtr, prevSelect);
4506 TREEVIEW_Invalidate(infoPtr, newSelect);
4507 break;
4508
4509 case TVGN_FIRSTVISIBLE:
4510 if (newSelect != NULL)
4511 {
4512 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4513 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4514 TREEVIEW_Invalidate(infoPtr, NULL);
4515 }
4516 break;
4517 }
4518
4519 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4520 return TRUE;
4521 }
4522
4523 /* FIXME: handle NM_KILLFOCUS etc */
4524 static LRESULT
4525 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4526 {
4527 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4528
4529 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4530 return FALSE;
4531
4532 if (item == infoPtr->selectedItem)
4533 return TRUE;
4534
4535 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4536
4537 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4538 return FALSE;
4539
4540 TREEVIEW_SingleExpand(infoPtr, selection, item);
4541
4542 return TRUE;
4543 }
4544
4545 /*************************************************************************
4546 * TREEVIEW_ProcessLetterKeys
4547 *
4548 * Processes keyboard messages generated by pressing the letter keys
4549 * on the keyboard.
4550 * What this does is perform a case insensitive search from the
4551 * current position with the following quirks:
4552 * - If two chars or more are pressed in quick succession we search
4553 * for the corresponding string (e.g. 'abc').
4554 * - If there is a delay we wipe away the current search string and
4555 * restart with just that char.
4556 * - If the user keeps pressing the same character, whether slowly or
4557 * fast, so that the search string is entirely composed of this
4558 * character ('aaaaa' for instance), then we search for first item
4559 * that starting with that character.
4560 * - If the user types the above character in quick succession, then
4561 * we must also search for the corresponding string ('aaaaa'), and
4562 * go to that string if there is a match.
4563 *
4564 * RETURNS
4565 *
4566 * Zero.
4567 *
4568 * BUGS
4569 *
4570 * - The current implementation has a list of characters it will
4571 * accept and it ignores everything else. In particular it will
4572 * ignore accentuated characters which seems to match what
4573 * Windows does. But I'm not sure it makes sense to follow
4574 * Windows there.
4575 * - We don't sound a beep when the search fails.
4576 * - The search should start from the focused item, not from the selected
4577 * item. One reason for this is to allow for multiple selections in trees.
4578 * But currently infoPtr->focusedItem does not seem very usable.
4579 *
4580 * SEE ALSO
4581 *
4582 * TREEVIEW_ProcessLetterKeys
4583 */
4584 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4585 {
4586 HTREEITEM nItem;
4587 HTREEITEM endidx,idx;
4588 TVITEMEXW item;
4589 WCHAR buffer[MAX_PATH];
4590 DWORD timestamp,elapsed;
4591
4592 /* simple parameter checking */
4593 if (!charCode || !keyData) return 0;
4594
4595 /* only allow the valid WM_CHARs through */
4596 if (!isalnum(charCode) &&
4597 charCode != '.' && charCode != '`' && charCode != '!' &&
4598 charCode != '@' && charCode != '#' && charCode != '$' &&
4599 charCode != '%' && charCode != '^' && charCode != '&' &&
4600 charCode != '*' && charCode != '(' && charCode != ')' &&
4601 charCode != '-' && charCode != '_' && charCode != '+' &&
4602 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4603 charCode != '}' && charCode != '[' && charCode != '{' &&
4604 charCode != '/' && charCode != '?' && charCode != '>' &&
4605 charCode != '<' && charCode != ',' && charCode != '~')
4606 return 0;
4607
4608 /* compute how much time elapsed since last keypress */
4609 timestamp = GetTickCount();
4610 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4611 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4612 } else {
4613 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4614 }
4615
4616 /* update the search parameters */
4617 infoPtr->lastKeyPressTimestamp=timestamp;
4618 if (elapsed < KEY_DELAY) {
4619 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4620 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4621 }
4622 if (infoPtr->charCode != charCode) {
4623 infoPtr->charCode=charCode=0;
4624 }
4625 } else {
4626 infoPtr->charCode=charCode;
4627 infoPtr->szSearchParam[0]=charCode;
4628 infoPtr->nSearchParamLength=1;
4629 /* Redundant with the 1 char string */
4630 charCode=0;
4631 }
4632
4633 /* and search from the current position */
4634 nItem=NULL;
4635 if (infoPtr->selectedItem != NULL) {
4636 endidx=infoPtr->selectedItem;
4637 /* if looking for single character match,
4638 * then we must always move forward
4639 */
4640 if (infoPtr->nSearchParamLength == 1)
4641 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4642 else
4643 idx=endidx;
4644 } else {
4645 endidx=NULL;
4646 idx=infoPtr->root->firstChild;
4647 }
4648 do {
4649 /* At the end point, sort out wrapping */
4650 if (idx == NULL) {
4651
4652 /* If endidx is null, stop at the last item (ie top to bottom) */
4653 if (endidx == NULL)
4654 break;
4655
4656 /* Otherwise, start again at the very beginning */
4657 idx=infoPtr->root->firstChild;
4658
4659 /* But if we are stopping on the first child, end now! */
4660 if (idx == endidx) break;
4661 }
4662
4663 /* get item */
4664 ZeroMemory(&item, sizeof(item));
4665 item.mask = TVIF_TEXT;
4666 item.hItem = idx;
4667 item.pszText = buffer;
4668 item.cchTextMax = sizeof(buffer);
4669 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4670
4671 /* check for a match */
4672 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4673 nItem=idx;
4674 break;
4675 } else if ( (charCode != 0) && (nItem == NULL) &&
4676 (nItem != infoPtr->selectedItem) &&
4677 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4678 /* This would work but we must keep looking for a longer match */
4679 nItem=idx;
4680 }
4681 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4682 } while (idx != endidx);
4683
4684 if (nItem != NULL) {
4685 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4686 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4687 }
4688 }
4689
4690 return 0;
4691 }
4692
4693 /* Scrolling ************************************************************/
4694
4695 static LRESULT
4696 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4697 {
4698 int viscount;
4699 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4700 HTREEITEM newFirstVisible = NULL;
4701 int visible_pos = -1;
4702
4703 if (!TREEVIEW_ValidItem(infoPtr, item))
4704 return FALSE;
4705
4706 if (!ISVISIBLE(item))
4707 {
4708 /* Expand parents as necessary. */
4709 HTREEITEM parent;
4710
4711 /* see if we are trying to ensure that root is visible */
4712 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4713 parent = item->parent;
4714 else
4715 parent = item; /* this item is the topmost item */
4716
4717 while (parent != infoPtr->root)
4718 {
4719 if (!(parent->state & TVIS_EXPANDED))
4720 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4721
4722 parent = parent->parent;
4723 }
4724 }
4725
4726 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4727
4728 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4729 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4730
4731 if (hasFirstVisible)
4732 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4733
4734 if (visible_pos < 0)
4735 {
4736 /* item is before the start of the list: put it at the top. */
4737 newFirstVisible = item;
4738 }
4739 else if (visible_pos >= viscount
4740 /* Sometimes, before we are displayed, GVC is 0, causing us to
4741 * spuriously scroll up. */
4742 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4743 {
4744 /* item is past the end of the list. */
4745 int scroll = visible_pos - viscount;
4746
4747 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4748 scroll + 1);
4749 }
4750
4751 if (bHScroll)
4752 {
4753 /* Scroll window so item's text is visible as much as possible */
4754 /* Calculation of amount of extra space is taken from EditLabel code */
4755 INT pos, x;
4756 TEXTMETRICW textMetric;
4757 HDC hdc = GetWindowDC(infoPtr->hwnd);
4758
4759 x = item->textWidth;
4760
4761 GetTextMetricsW(hdc, &textMetric);
4762 ReleaseDC(infoPtr->hwnd, hdc);
4763
4764 x += (textMetric.tmMaxCharWidth * 2);
4765 x = max(x, textMetric.tmMaxCharWidth * 3);
4766
4767 if (item->textOffset < 0)
4768 pos = item->textOffset;
4769 else if (item->textOffset + x > infoPtr->clientWidth)
4770 {
4771 if (x > infoPtr->clientWidth)
4772 pos = item->textOffset;
4773 else
4774 pos = item->textOffset + x - infoPtr->clientWidth;
4775 }
4776 else
4777 pos = 0;
4778
4779 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4780 }
4781
4782 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4783 {
4784 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4785
4786 return TRUE;
4787 }
4788
4789 return FALSE;
4790 }
4791
4792 static VOID
4793 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4794 TREEVIEW_ITEM *newFirstVisible,
4795 BOOL bUpdateScrollPos)
4796 {
4797 int gap_size;
4798
4799 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4800
4801 if (newFirstVisible != NULL)
4802 {
4803 /* Prevent an empty gap from appearing at the bottom... */
4804 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4805 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4806
4807 if (gap_size > 0)
4808 {
4809 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4810 -gap_size);
4811
4812 /* ... unless we just don't have enough items. */
4813 if (newFirstVisible == NULL)
4814 newFirstVisible = infoPtr->root->firstChild;
4815 }
4816 }
4817
4818 if (infoPtr->firstVisible != newFirstVisible)
4819 {
4820 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4821 {
4822 infoPtr->firstVisible = newFirstVisible;
4823 TREEVIEW_Invalidate(infoPtr, NULL);
4824 }
4825 else
4826 {
4827 TREEVIEW_ITEM *item;
4828 int scroll = infoPtr->uItemHeight *
4829 (infoPtr->firstVisible->visibleOrder
4830 - newFirstVisible->visibleOrder);
4831
4832 infoPtr->firstVisible = newFirstVisible;
4833
4834 for (item = infoPtr->root->firstChild; item != NULL;
4835 item = TREEVIEW_GetNextListItem(infoPtr, item))
4836 {
4837 item->rect.top += scroll;
4838 item->rect.bottom += scroll;
4839 }
4840
4841 if (bUpdateScrollPos)
4842 SetScrollPos(infoPtr->hwnd, SB_VERT,
4843 newFirstVisible->visibleOrder, TRUE);
4844
4845 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4846 }
4847 }
4848 }
4849
4850 /************************************************************************
4851 * VScroll is always in units of visible items. i.e. we always have a
4852 * visible item aligned to the top of the control. (Unless we have no
4853 * items at all.)
4854 */
4855 static LRESULT
4856 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4857 {
4858 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4859 TREEVIEW_ITEM *newFirstVisible = NULL;
4860
4861 int nScrollCode = LOWORD(wParam);
4862
4863 TRACE("wp %lx\n", wParam);
4864
4865 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4866 return 0;
4867
4868 if (!oldFirstVisible)
4869 {
4870 assert(infoPtr->root->firstChild == NULL);
4871 return 0;
4872 }
4873
4874 switch (nScrollCode)
4875 {
4876 case SB_TOP:
4877 newFirstVisible = infoPtr->root->firstChild;
4878 break;
4879
4880 case SB_BOTTOM:
4881 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4882 break;
4883
4884 case SB_LINEUP:
4885 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4886 break;
4887
4888 case SB_LINEDOWN:
4889 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4890 break;
4891
4892 case SB_PAGEUP:
4893 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4894 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4895 break;
4896
4897 case SB_PAGEDOWN:
4898 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4899 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4900 break;
4901
4902 case SB_THUMBTRACK:
4903 case SB_THUMBPOSITION:
4904 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4905 infoPtr->root->firstChild,
4906 (LONG)(SHORT)HIWORD(wParam));
4907 break;
4908
4909 case SB_ENDSCROLL:
4910 return 0;
4911 }
4912
4913 if (newFirstVisible != NULL)
4914 {
4915 if (newFirstVisible != oldFirstVisible)
4916 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4917 nScrollCode != SB_THUMBTRACK);
4918 else if (nScrollCode == SB_THUMBPOSITION)
4919 SetScrollPos(infoPtr->hwnd, SB_VERT,
4920 newFirstVisible->visibleOrder, TRUE);
4921 }
4922
4923 return 0;
4924 }
4925
4926 static LRESULT
4927 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4928 {
4929 int maxWidth;
4930 int scrollX = infoPtr->scrollX;
4931 int nScrollCode = LOWORD(wParam);
4932
4933 TRACE("wp %lx\n", wParam);
4934
4935 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4936 return FALSE;
4937
4938 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4939 /* shall never occur */
4940 if (maxWidth <= 0)
4941 {
4942 scrollX = 0;
4943 goto scroll;
4944 }
4945
4946 switch (nScrollCode)
4947 {
4948 case SB_LINELEFT:
4949 scrollX -= infoPtr->uItemHeight;
4950 break;
4951 case SB_LINERIGHT:
4952 scrollX += infoPtr->uItemHeight;
4953 break;
4954 case SB_PAGELEFT:
4955 scrollX -= infoPtr->clientWidth;
4956 break;
4957 case SB_PAGERIGHT:
4958 scrollX += infoPtr->clientWidth;
4959 break;
4960
4961 case SB_THUMBTRACK:
4962 case SB_THUMBPOSITION:
4963 scrollX = (int)(SHORT)HIWORD(wParam);
4964 break;
4965
4966 case SB_ENDSCROLL:
4967 return 0;
4968 }
4969
4970 if (scrollX > maxWidth)
4971 scrollX = maxWidth;
4972 else if (scrollX < 0)
4973 scrollX = 0;
4974
4975 scroll:
4976 if (scrollX != infoPtr->scrollX)
4977 {
4978 TREEVIEW_ITEM *item;
4979 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4980
4981 for (item = infoPtr->root->firstChild; item != NULL;
4982 item = TREEVIEW_GetNextListItem(infoPtr, item))
4983 {
4984 item->linesOffset += scroll_pixels;
4985 item->stateOffset += scroll_pixels;
4986 item->imageOffset += scroll_pixels;
4987 item->textOffset += scroll_pixels;
4988 }
4989
4990 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4991 infoPtr->scrollX = scrollX;
4992 UpdateWindow(infoPtr->hwnd);
4993 }
4994
4995 if (nScrollCode != SB_THUMBTRACK)
4996 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4997
4998 return 0;
4999 }
5000
5001 static LRESULT
5002 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5003 {
5004 short wheelDelta;
5005 UINT pulScrollLines = 3;
5006
5007 if (wParam & (MK_SHIFT | MK_CONTROL))
5008 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
5009
5010 if (infoPtr->firstVisible == NULL)
5011 return TRUE;
5012
5013 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
5014
5015 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
5016 /* if scrolling changes direction, ignore left overs */
5017 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
5018 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
5019 infoPtr->wheelRemainder += wheelDelta;
5020 else
5021 infoPtr->wheelRemainder = wheelDelta;
5022
5023 if (infoPtr->wheelRemainder && pulScrollLines)
5024 {
5025 int newDy;
5026 int maxDy;
5027 int lineScroll;
5028
5029 lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
5030 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
5031
5032 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
5033 maxDy = infoPtr->maxVisibleOrder;
5034
5035 if (newDy > maxDy)
5036 newDy = maxDy;
5037
5038 if (newDy < 0)
5039 newDy = 0;
5040
5041 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5042 }
5043 return TRUE;
5044 }
5045
5046 /* Create/Destroy *******************************************************/
5047
5048 static LRESULT
5049 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5050 {
5051 RECT rcClient;
5052 TREEVIEW_INFO *infoPtr;
5053 LOGFONTW lf;
5054
5055 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5056
5057 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5058
5059 if (infoPtr == NULL)
5060 {
5061 ERR("could not allocate info memory!\n");
5062 return 0;
5063 }
5064
5065 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5066
5067 infoPtr->hwnd = hwnd;
5068 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5069 infoPtr->Timer = 0;
5070 infoPtr->uNumItems = 0;
5071 infoPtr->cdmode = 0;
5072 infoPtr->uScrollTime = 300; /* milliseconds */
5073 infoPtr->bRedraw = TRUE;
5074
5075 GetClientRect(hwnd, &rcClient);
5076
5077 /* No scroll bars yet. */
5078 infoPtr->clientWidth = rcClient.right;
5079 infoPtr->clientHeight = rcClient.bottom;
5080 infoPtr->uInternalStatus = 0;
5081
5082 infoPtr->treeWidth = 0;
5083 infoPtr->treeHeight = 0;
5084
5085 infoPtr->uIndent = MINIMUM_INDENT;
5086 infoPtr->selectedItem = NULL;
5087 infoPtr->focusedItem = NULL;
5088 infoPtr->hotItem = NULL;
5089 infoPtr->editItem = NULL;
5090 infoPtr->firstVisible = NULL;
5091 infoPtr->maxVisibleOrder = 0;
5092 infoPtr->dropItem = NULL;
5093 infoPtr->insertMarkItem = NULL;
5094 infoPtr->insertBeforeorAfter = 0;
5095 /* dragList */
5096
5097 infoPtr->scrollX = 0;
5098 infoPtr->wheelRemainder = 0;
5099
5100 infoPtr->clrBk = CLR_NONE; /* use system color */
5101 infoPtr->clrText = CLR_NONE; /* use system color */
5102 infoPtr->clrLine = CLR_DEFAULT;
5103 infoPtr->clrInsertMark = CLR_DEFAULT;
5104
5105 /* hwndToolTip */
5106
5107 infoPtr->hwndEdit = NULL;
5108 infoPtr->wpEditOrig = NULL;
5109 infoPtr->bIgnoreEditKillFocus = FALSE;
5110 infoPtr->bLabelChanged = FALSE;
5111
5112 infoPtr->himlNormal = NULL;
5113 infoPtr->himlState = NULL;
5114 infoPtr->normalImageWidth = 0;
5115 infoPtr->normalImageHeight = 0;
5116 infoPtr->stateImageWidth = 0;
5117 infoPtr->stateImageHeight = 0;
5118
5119 infoPtr->items = DPA_Create(16);
5120
5121 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5122 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5123 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5124 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5125 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5126 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5127
5128 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5129
5130 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5131 infoPtr->root->state = TVIS_EXPANDED;
5132 infoPtr->root->iLevel = -1;
5133 infoPtr->root->visibleOrder = -1;
5134
5135 infoPtr->hwndNotify = lpcs->hwndParent;
5136 infoPtr->hwndToolTip = 0;
5137
5138 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5139 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5140
5141 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5142 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5143 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5144 hwnd, 0, 0, 0);
5145
5146 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5147 ShowScrollBar(hwnd, SB_VERT, FALSE);
5148 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5149
5150 OpenThemeData (hwnd, themeClass);
5151
5152 return 0;
5153 }
5154
5155
5156 static LRESULT
5157 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5158 {
5159 TRACE("\n");
5160
5161 /* free item data */
5162 TREEVIEW_RemoveTree(infoPtr);
5163 /* root isn't freed with other items */
5164 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5165 DPA_Destroy(infoPtr->items);
5166
5167 /* tool tip is automatically destroyed: we are its owner */
5168
5169 /* Restore original wndproc */
5170 if (infoPtr->hwndEdit)
5171 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5172 (DWORD_PTR)infoPtr->wpEditOrig);
5173
5174 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5175
5176 /* Deassociate treeview from the window before doing anything drastic. */
5177 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5178
5179 DeleteObject(infoPtr->hDefaultFont);
5180 DeleteObject(infoPtr->hBoldFont);
5181 DeleteObject(infoPtr->hUnderlineFont);
5182 DeleteObject(infoPtr->hBoldUnderlineFont);
5183 Free(infoPtr);
5184
5185 return 0;
5186 }
5187
5188 /* Miscellaneous Messages ***********************************************/
5189
5190 static LRESULT
5191 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5192 {
5193 static const struct
5194 {
5195 unsigned char code;
5196 }
5197 scroll[] =
5198 {
5199 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5200 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5201 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5202 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5203 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5204 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5205 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5206 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5207 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5208 #undef SCROLL_ENTRY
5209 };
5210
5211 if (key >= VK_PRIOR && key <= VK_DOWN)
5212 {
5213 unsigned char code = scroll[key - VK_PRIOR].code;
5214
5215 (((code & (1 << 7)) == (SB_HORZ << 7))
5216 ? TREEVIEW_HScroll
5217 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5218 }
5219
5220 return 0;
5221 }
5222
5223 /************************************************************************
5224 * TREEVIEW_KeyDown
5225 *
5226 * VK_UP Move selection to the previous non-hidden item.
5227 * VK_DOWN Move selection to the next non-hidden item.
5228 * VK_HOME Move selection to the first item.
5229 * VK_END Move selection to the last item.
5230 * VK_LEFT If expanded then collapse, otherwise move to parent.
5231 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5232 * VK_ADD Expand.
5233 * VK_SUBTRACT Collapse.
5234 * VK_MULTIPLY Expand all.
5235 * VK_PRIOR Move up GetVisibleCount items.
5236 * VK_NEXT Move down GetVisibleCount items.
5237 * VK_BACK Move to parent.
5238 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5239 */
5240 static LRESULT
5241 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5242 {
5243 /* If it is non-NULL and different, it will be selected and visible. */
5244 TREEVIEW_ITEM *newSelection = NULL;
5245 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5246 NMTVKEYDOWN nmkeydown;
5247
5248 TRACE("%lx\n", wParam);
5249
5250 nmkeydown.wVKey = wParam;
5251 nmkeydown.flags = 0;
5252 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5253
5254 if (prevItem == NULL)
5255 return FALSE;
5256
5257 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5258 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5259
5260 switch (wParam)
5261 {
5262 case VK_UP:
5263 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5264 if (!newSelection)
5265 newSelection = infoPtr->root->firstChild;
5266 break;
5267
5268 case VK_DOWN:
5269 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5270 break;
5271
5272 case VK_RETURN:
5273 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5274 break;
5275
5276 case VK_HOME:
5277 newSelection = infoPtr->root->firstChild;
5278 break;
5279
5280 case VK_END:
5281 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5282 break;
5283
5284 case VK_LEFT:
5285 if (prevItem->state & TVIS_EXPANDED)
5286 {
5287 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5288 }
5289 else if (prevItem->parent != infoPtr->root)
5290 {
5291 newSelection = prevItem->parent;
5292 }
5293 break;
5294
5295 case VK_RIGHT:
5296 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5297 {
5298 if (!(prevItem->state & TVIS_EXPANDED))
5299 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5300 else
5301 {
5302 newSelection = prevItem->firstChild;
5303 }
5304 }
5305
5306 break;
5307
5308 case VK_MULTIPLY:
5309 TREEVIEW_ExpandAll(infoPtr, prevItem);
5310 break;
5311
5312 case VK_ADD:
5313 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5314 break;
5315
5316 case VK_SUBTRACT:
5317 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5318 break;
5319
5320 case VK_PRIOR:
5321 newSelection
5322 = TREEVIEW_GetListItem(infoPtr, prevItem,
5323 -TREEVIEW_GetVisibleCount(infoPtr));
5324 break;
5325
5326 case VK_NEXT:
5327 newSelection
5328 = TREEVIEW_GetListItem(infoPtr, prevItem,
5329 TREEVIEW_GetVisibleCount(infoPtr));
5330 break;
5331
5332 case VK_BACK:
5333 newSelection = prevItem->parent;
5334 if (newSelection == infoPtr->root)
5335 newSelection = NULL;
5336 break;
5337
5338 case VK_SPACE:
5339 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5340 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5341 break;
5342 }
5343
5344 if (newSelection && newSelection != prevItem)
5345 {
5346 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5347 TVC_BYKEYBOARD))
5348 {
5349 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5350 }
5351 }
5352
5353 return FALSE;
5354 }
5355
5356 static LRESULT
5357 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5358 {
5359 /* remove hot effect from item */
5360 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5361 infoPtr->hotItem = NULL;
5362
5363 return 0;
5364 }
5365
5366 static LRESULT
5367 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5368 {
5369 TRACKMOUSEEVENT trackinfo;
5370 TREEVIEW_ITEM * item;
5371 TVHITTESTINFO ht;
5372 BOOL item_hit;
5373
5374 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5375
5376 /* fill in the TRACKMOUSEEVENT struct */
5377 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5378 trackinfo.dwFlags = TME_QUERY;
5379 trackinfo.hwndTrack = infoPtr->hwnd;
5380
5381 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5382 _TrackMouseEvent(&trackinfo);
5383
5384 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5385 if(!(trackinfo.dwFlags & TME_LEAVE))
5386 {
5387 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5388 trackinfo.hwndTrack = infoPtr->hwnd;
5389 /* do it as fast as possible, minimal systimer latency will be used */
5390 trackinfo.dwHoverTime = 1;
5391
5392 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5393 /* and can properly deactivate the hot item */
5394 _TrackMouseEvent(&trackinfo);
5395 }
5396
5397 ht.pt.x = (short)LOWORD(lParam);
5398 ht.pt.y = (short)HIWORD(lParam);
5399
5400 item = TREEVIEW_HitTest(infoPtr, &ht);
5401 item_hit = TREEVIEW_IsItemHit(infoPtr, &ht);
5402 if ((item != infoPtr->hotItem) || !item_hit)
5403 {
5404 /* redraw old hot item */
5405 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5406 infoPtr->hotItem = NULL;
5407 if (item && item_hit)
5408 {
5409 infoPtr->hotItem = item;
5410 /* redraw new hot item */
5411 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5412 }
5413 }
5414
5415 return 0;
5416 }
5417
5418 /* Draw themed border */
5419 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5420 {
5421 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5422 HDC dc;
5423 RECT r;
5424 HRGN cliprgn;
5425 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5426 cyEdge = GetSystemMetrics (SM_CYEDGE);
5427
5428 if (!theme)
5429 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5430
5431 GetWindowRect(infoPtr->hwnd, &r);
5432
5433 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5434 r.right - cxEdge, r.bottom - cyEdge);
5435 if (region != (HRGN)1)
5436 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5437 OffsetRect(&r, -r.left, -r.top);
5438
5439 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5440 OffsetRect(&r, -r.left, -r.top);
5441
5442 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5443 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5444 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5445 ReleaseDC(infoPtr->hwnd, dc);
5446
5447 /* Call default proc to get the scrollbars etc. painted */
5448 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5449
5450 return TRUE;
5451 }
5452
5453 static LRESULT
5454 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5455 {
5456 LPNMHDR lpnmh = (LPNMHDR)lParam;
5457
5458 if (lpnmh->code == PGN_CALCSIZE) {
5459 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5460
5461 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5462 lppgc->iWidth = infoPtr->treeWidth;
5463 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5464 infoPtr->treeWidth, infoPtr->clientWidth);
5465 }
5466 else {
5467 lppgc->iHeight = infoPtr->treeHeight;
5468 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5469 infoPtr->treeHeight, infoPtr->clientHeight);
5470 }
5471 return 0;
5472 }
5473 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5474 }
5475
5476 static LRESULT
5477 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5478 {
5479 if (wParam == SIZE_RESTORED)
5480 {
5481 infoPtr->clientWidth = (short)LOWORD(lParam);
5482 infoPtr->clientHeight = (short)HIWORD(lParam);
5483
5484 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5485 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5486 TREEVIEW_UpdateScrollBars(infoPtr);
5487 }
5488 else
5489 {
5490 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5491 }
5492
5493 TREEVIEW_Invalidate(infoPtr, NULL);
5494 return 0;
5495 }
5496
5497 static LRESULT
5498 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5499 {
5500 TRACE("(%lx %lx)\n", wParam, lParam);
5501
5502 if (wParam == GWL_STYLE)
5503 {
5504 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5505
5506 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5507 {
5508 if (dwNewStyle & TVS_CHECKBOXES)
5509 {
5510 TREEVIEW_InitCheckboxes(infoPtr);
5511 TRACE("checkboxes enabled\n");
5512
5513 /* set all items to state image index 1 */
5514 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5515 }
5516 else
5517 {
5518 FIXME("tried to disable checkboxes\n");
5519 }
5520 }
5521
5522 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5523 {
5524 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5525 {
5526 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5527 TRACE("tooltips enabled\n");
5528 }
5529 else
5530 {
5531 DestroyWindow(infoPtr->hwndToolTip);
5532 infoPtr->hwndToolTip = 0;
5533 TRACE("tooltips disabled\n");
5534 }
5535 }
5536
5537 infoPtr->dwStyle = dwNewStyle;
5538 }
5539
5540 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5541 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5542 TREEVIEW_UpdateScrollBars(infoPtr);
5543 TREEVIEW_Invalidate(infoPtr, NULL);
5544
5545 return 0;
5546 }
5547
5548 static LRESULT
5549 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5550 {
5551 TREEVIEW_ITEM * item;
5552 TVHITTESTINFO ht;
5553 NMMOUSE nmmouse;
5554
5555 GetCursorPos(&ht.pt);
5556 ScreenToClient(infoPtr->hwnd, &ht.pt);
5557
5558 item = TREEVIEW_HitTest(infoPtr, &ht);
5559
5560 memset(&nmmouse, 0, sizeof(nmmouse));
5561 if (item)
5562 {
5563 nmmouse.dwItemSpec = (DWORD_PTR)item;
5564 nmmouse.dwItemData = item->lParam;
5565 }
5566 nmmouse.pt.x = 0;
5567 nmmouse.pt.y = 0;
5568 nmmouse.dwHitInfo = lParam;
5569 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5570 return 0;
5571
5572 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT) && TREEVIEW_IsItemHit(infoPtr, &ht))
5573 {
5574 SetCursor(infoPtr->hcurHand);
5575 return 0;
5576 }
5577 else
5578 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5579 }
5580
5581 static LRESULT
5582 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5583 {
5584 TRACE("\n");
5585
5586 if (!infoPtr->selectedItem)
5587 {
5588 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5589 TVC_UNKNOWN);
5590 }
5591
5592 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5593 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5594 return 0;
5595 }
5596
5597 static LRESULT
5598 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5599 {
5600 TRACE("\n");
5601
5602 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5603 UpdateWindow(infoPtr->hwnd);
5604 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5605 return 0;
5606 }
5607
5608 /* update theme after a WM_THEMECHANGED message */
5609 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5610 {
5611 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5612 CloseThemeData (theme);
5613 OpenThemeData (infoPtr->hwnd, themeClass);
5614 return 0;
5615 }
5616
5617
5618 static LRESULT WINAPI
5619 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5620 {
5621 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5622
5623 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5624
5625 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5626 else
5627 {
5628 if (uMsg == WM_CREATE)
5629 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5630 else
5631 goto def;
5632 }
5633
5634 switch (uMsg)
5635 {
5636 case TVM_CREATEDRAGIMAGE:
5637 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5638
5639 case TVM_DELETEITEM:
5640 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5641
5642 case TVM_EDITLABELA:
5643 case TVM_EDITLABELW:
5644 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5645
5646 case TVM_ENDEDITLABELNOW:
5647 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5648
5649 case TVM_ENSUREVISIBLE:
5650 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5651
5652 case TVM_EXPAND:
5653 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5654
5655 case TVM_GETBKCOLOR:
5656 return TREEVIEW_GetBkColor(infoPtr);
5657
5658 case TVM_GETCOUNT:
5659 return TREEVIEW_GetCount(infoPtr);
5660
5661 case TVM_GETEDITCONTROL:
5662 return TREEVIEW_GetEditControl(infoPtr);
5663
5664 case TVM_GETIMAGELIST:
5665 return TREEVIEW_GetImageList(infoPtr, wParam);
5666
5667 case TVM_GETINDENT:
5668 return TREEVIEW_GetIndent(infoPtr);
5669
5670 case TVM_GETINSERTMARKCOLOR:
5671 return TREEVIEW_GetInsertMarkColor(infoPtr);
5672
5673 case TVM_GETISEARCHSTRINGA:
5674 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5675 return 0;
5676
5677 case TVM_GETISEARCHSTRINGW:
5678 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5679 return 0;
5680
5681 case TVM_GETITEMA:
5682 case TVM_GETITEMW:
5683 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5684 uMsg == TVM_GETITEMW);
5685 case TVM_GETITEMHEIGHT:
5686 return TREEVIEW_GetItemHeight(infoPtr);
5687
5688 case TVM_GETITEMRECT:
5689 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5690
5691 case TVM_GETITEMSTATE:
5692 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5693
5694 case TVM_GETLINECOLOR:
5695 return TREEVIEW_GetLineColor(infoPtr);
5696
5697 case TVM_GETNEXTITEM:
5698 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5699
5700 case TVM_GETSCROLLTIME:
5701 return TREEVIEW_GetScrollTime(infoPtr);
5702
5703 case TVM_GETTEXTCOLOR:
5704 return TREEVIEW_GetTextColor(infoPtr);
5705
5706 case TVM_GETTOOLTIPS:
5707 return TREEVIEW_GetToolTips(infoPtr);
5708
5709 case TVM_GETUNICODEFORMAT:
5710 return TREEVIEW_GetUnicodeFormat(infoPtr);
5711
5712 case TVM_GETVISIBLECOUNT:
5713 return TREEVIEW_GetVisibleCount(infoPtr);
5714
5715 case TVM_HITTEST:
5716 return (LRESULT)TREEVIEW_HitTest(infoPtr, (TVHITTESTINFO*)lParam);
5717
5718 case TVM_INSERTITEMA:
5719 case TVM_INSERTITEMW:
5720 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5721 uMsg == TVM_INSERTITEMW);
5722 case TVM_SELECTITEM:
5723 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5724
5725 case TVM_SETBKCOLOR:
5726 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5727
5728 case TVM_SETIMAGELIST:
5729 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5730
5731 case TVM_SETINDENT:
5732 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5733
5734 case TVM_SETINSERTMARK:
5735 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5736
5737 case TVM_SETINSERTMARKCOLOR:
5738 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5739
5740 case TVM_SETITEMA:
5741 case TVM_SETITEMW:
5742 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5743 uMsg == TVM_SETITEMW);
5744 case TVM_SETLINECOLOR:
5745 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5746
5747 case TVM_SETITEMHEIGHT:
5748 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5749
5750 case TVM_SETSCROLLTIME:
5751 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5752
5753 case TVM_SETTEXTCOLOR:
5754 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5755
5756 case TVM_SETTOOLTIPS:
5757 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5758
5759 case TVM_SETUNICODEFORMAT:
5760 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5761
5762 case TVM_SORTCHILDREN:
5763 return TREEVIEW_SortChildren(infoPtr, lParam);
5764
5765 case TVM_SORTCHILDRENCB:
5766 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5767
5768 case WM_CHAR:
5769 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5770
5771 case WM_COMMAND:
5772 return TREEVIEW_Command(infoPtr, wParam, lParam);
5773
5774 case WM_DESTROY:
5775 return TREEVIEW_Destroy(infoPtr);
5776
5777 /* WM_ENABLE */
5778
5779 case WM_ERASEBKGND:
5780 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5781
5782 case WM_GETDLGCODE:
5783 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5784
5785 case WM_GETFONT:
5786 return TREEVIEW_GetFont(infoPtr);
5787
5788 case WM_HSCROLL:
5789 return TREEVIEW_HScroll(infoPtr, wParam);
5790
5791 case WM_KEYDOWN:
5792 case WM_SYSKEYDOWN:
5793 return TREEVIEW_KeyDown(infoPtr, wParam);
5794
5795 case WM_KILLFOCUS:
5796 return TREEVIEW_KillFocus(infoPtr);
5797
5798 case WM_LBUTTONDBLCLK:
5799 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5800
5801 case WM_LBUTTONDOWN:
5802 return TREEVIEW_LButtonDown(infoPtr, lParam);
5803
5804 /* WM_MBUTTONDOWN */
5805
5806 case WM_MOUSELEAVE:
5807 return TREEVIEW_MouseLeave(infoPtr);
5808
5809 case WM_MOUSEMOVE:
5810 return TREEVIEW_MouseMove(infoPtr, lParam);
5811
5812 case WM_NCLBUTTONDOWN:
5813 if (infoPtr->hwndEdit)
5814 SetFocus(infoPtr->hwnd);
5815 goto def;
5816
5817 case WM_NCPAINT:
5818 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5819
5820 case WM_NOTIFY:
5821 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5822
5823 case WM_NOTIFYFORMAT:
5824 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5825
5826 case WM_PRINTCLIENT:
5827 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5828
5829 case WM_PAINT:
5830 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5831
5832 case WM_RBUTTONDOWN:
5833 return TREEVIEW_RButtonDown(infoPtr, lParam);
5834
5835 case WM_SETCURSOR:
5836 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5837
5838 case WM_SETFOCUS:
5839 return TREEVIEW_SetFocus(infoPtr);
5840
5841 case WM_SETFONT:
5842 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5843
5844 case WM_SETREDRAW:
5845 return TREEVIEW_SetRedraw(infoPtr, wParam);
5846
5847 case WM_SIZE:
5848 return TREEVIEW_Size(infoPtr, wParam, lParam);
5849
5850 case WM_STYLECHANGED:
5851 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5852
5853 case WM_SYSCOLORCHANGE:
5854 COMCTL32_RefreshSysColors();
5855 return 0;
5856
5857 case WM_TIMER:
5858 return TREEVIEW_HandleTimer(infoPtr, wParam);
5859
5860 case WM_THEMECHANGED:
5861 return TREEVIEW_ThemeChanged (infoPtr);
5862
5863 case WM_VSCROLL:
5864 return TREEVIEW_VScroll(infoPtr, wParam);
5865
5866 /* WM_WININICHANGE */
5867
5868 case WM_MOUSEWHEEL:
5869 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5870
5871 case WM_DRAWITEM:
5872 TRACE("drawItem\n");
5873 goto def;
5874
5875 default:
5876 /* This mostly catches MFC and Delphi messages. :( */
5877 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5878 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5879 def:
5880 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5881 }
5882 }
5883
5884
5885 /* Class Registration ***************************************************/
5886
5887 VOID
5888 TREEVIEW_Register(void)
5889 {
5890 WNDCLASSW wndClass;
5891
5892 TRACE("\n");
5893
5894 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5895 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5896 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5897 wndClass.cbClsExtra = 0;
5898 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5899
5900 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5901 wndClass.hbrBackground = 0;
5902 wndClass.lpszClassName = WC_TREEVIEWW;
5903
5904 RegisterClassW(&wndClass);
5905 }
5906
5907
5908 VOID
5909 TREEVIEW_Unregister(void)
5910 {
5911 UnregisterClassW(WC_TREEVIEWW, NULL);
5912 }
5913
5914
5915 /* Tree Verification ****************************************************/
5916
5917 static inline void
5918 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5919
5920 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5921 const TREEVIEW_ITEM *item)
5922 {
5923 assert(infoPtr != NULL);
5924 assert(item != NULL);
5925
5926 /* both NULL, or both non-null */
5927 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5928
5929 assert(item->firstChild != item);
5930 assert(item->lastChild != item);
5931
5932 if (item->firstChild)
5933 {
5934 assert(item->firstChild->parent == item);
5935 assert(item->firstChild->prevSibling == NULL);
5936 }
5937
5938 if (item->lastChild)
5939 {
5940 assert(item->lastChild->parent == item);
5941 assert(item->lastChild->nextSibling == NULL);
5942 }
5943
5944 assert(item->nextSibling != item);
5945 if (item->nextSibling)
5946 {
5947 assert(item->nextSibling->parent == item->parent);
5948 assert(item->nextSibling->prevSibling == item);
5949 }
5950
5951 assert(item->prevSibling != item);
5952 if (item->prevSibling)
5953 {
5954 assert(item->prevSibling->parent == item->parent);
5955 assert(item->prevSibling->nextSibling == item);
5956 }
5957 }
5958
5959 static inline void
5960 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5961 {
5962 assert(item != NULL);
5963
5964 assert(item->parent != NULL);
5965 assert(item->parent != item);
5966 assert(item->iLevel == item->parent->iLevel + 1);
5967
5968 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5969
5970 TREEVIEW_VerifyItemCommon(infoPtr, item);
5971
5972 TREEVIEW_VerifyChildren(infoPtr, item);
5973 }
5974
5975 static inline void
5976 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5977 {
5978 const TREEVIEW_ITEM *child;
5979 assert(item != NULL);
5980
5981 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5982 TREEVIEW_VerifyItem(infoPtr, child);
5983 }
5984
5985 static inline void
5986 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5987 {
5988 TREEVIEW_ITEM *root = infoPtr->root;
5989
5990 assert(root != NULL);
5991 assert(root->iLevel == -1);
5992 assert(root->parent == NULL);
5993 assert(root->prevSibling == NULL);
5994
5995 TREEVIEW_VerifyItemCommon(infoPtr, root);
5996
5997 TREEVIEW_VerifyChildren(infoPtr, root);
5998 }
5999
6000 static void
6001 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
6002 {
6003 if (!TRACE_ON(treeview)) return;
6004
6005 assert(infoPtr != NULL);
6006 TREEVIEW_VerifyRoot(infoPtr);
6007 }
Windows API implementation