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comctl32/treeview: Use consistent format for hex values in traces.
[wine.git] / dlls / comctl32 / treeview.c
blobffb5981b107ecbe62368a006992a4dc8e03e43c2
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 first visible item */
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; /* visible ordering, 0 is first visible item */
166 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
167 } TREEVIEW_ITEM;
168
169 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
170 #define KEY_DELAY 450
171
172 /* bitflags for infoPtr->uInternalStatus */
173
174 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
175 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
176 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
177 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
178 #define TV_RDRAG 0x10 /* ditto Rbutton */
179 #define TV_RDRAGGING 0x20
180
181 /* bitflags for infoPtr->timer */
182
183 #define TV_EDIT_TIMER 2
184 #define TV_EDIT_TIMER_SET 2
185
186 #define TEXT_CALLBACK_SIZE 260
187
188 #define TREEVIEW_LEFT_MARGIN 8
189
190 #define MINIMUM_INDENT 19
191
192 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
193
194 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
195 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
196 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
197
198 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
199 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
200 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
201 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
202
203 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
204
205
206 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
207
208
209 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
210
211 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
212 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
213 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
214 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
215 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
216 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
217
218 /* Random Utilities *****************************************************/
219 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
220
221 /* Returns the treeview private data if hwnd is a treeview.
222 * Otherwise returns an undefined value. */
223 static inline TREEVIEW_INFO *
224 TREEVIEW_GetInfoPtr(HWND hwnd)
225 {
226 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
227 }
228
229 /* Don't call this. Nothing wants an item index. */
230 static inline int
231 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
232 {
233 return DPA_GetPtrIndex(infoPtr->items, handle);
234 }
235
236 /* Checks if item has changed and needs to be redrawn */
237 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
238 const TVITEMEXW *tvChange)
239 {
240 /* Number of children has changed */
241 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
242 return TRUE;
243
244 /* Image has changed and it's not a callback */
245 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
246 tiNew->iImage != I_IMAGECALLBACK)
247 return TRUE;
248
249 /* Selected image has changed and it's not a callback */
250 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
251 tiNew->iSelectedImage != I_IMAGECALLBACK)
252 return TRUE;
253
254 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
255 tiNew->iExpandedImage != I_IMAGECALLBACK)
256 return TRUE;
257
258 /* Text has changed and it's not a callback */
259 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
260 tiNew->pszText != LPSTR_TEXTCALLBACKW)
261 return TRUE;
262
263 /* Indent has changed */
264 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
265 return TRUE;
266
267 /* Item state has changed */
268 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
269 return TRUE;
270
271 return FALSE;
272 }
273
274 /***************************************************************************
275 * This method checks that handle is an item for this tree.
276 */
277 static BOOL
278 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
279 {
280 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
281 {
282 TRACE("invalid item %p\n", handle);
283 return FALSE;
284 }
285 else
286 return TRUE;
287 }
288
289 static HFONT
290 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
291 {
292 LOGFONTW font;
293
294 GetObjectW(hOrigFont, sizeof(font), &font);
295 font.lfWeight = FW_BOLD;
296 return CreateFontIndirectW(&font);
297 }
298
299 static HFONT
300 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
301 {
302 LOGFONTW font;
303
304 GetObjectW(hOrigFont, sizeof(font), &font);
305 font.lfUnderline = TRUE;
306 return CreateFontIndirectW(&font);
307 }
308
309 static HFONT
310 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
311 {
312 LOGFONTW font;
313
314 GetObjectW(hfont, sizeof(font), &font);
315 font.lfWeight = FW_BOLD;
316 font.lfUnderline = TRUE;
317 return CreateFontIndirectW(&font);
318 }
319
320 static inline HFONT
321 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
322 {
323 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
324 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
325 if (item->state & TVIS_BOLD)
326 return infoPtr->hBoldFont;
327 return infoPtr->hFont;
328 }
329
330 /* for trace/debugging purposes only */
331 static const char *
332 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
333 {
334 if (item == NULL) return "<null item>";
335 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
336 if (item->pszText == NULL) return "<null>";
337 return debugstr_w(item->pszText);
338 }
339
340 /* An item is not a child of itself. */
341 static BOOL
342 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
343 {
344 do
345 {
346 child = child->parent;
347 if (child == parent) return TRUE;
348 } while (child != NULL);
349
350 return FALSE;
351 }
352
353
354 /* Tree Traversal *******************************************************/
355
356 /***************************************************************************
357 * This method returns the last expanded sibling or child child item
358 * of a tree node
359 */
360 static TREEVIEW_ITEM *
361 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
362 {
363 if (!item) return NULL;
364
365 while (item->lastChild)
366 {
367 if (item->state & TVIS_EXPANDED)
368 item = item->lastChild;
369 else
370 break;
371 }
372
373 if (item == infoPtr->root)
374 return NULL;
375
376 return item;
377 }
378
379 /***************************************************************************
380 * This method returns the previous non-hidden item in the list not
381 * considering the tree hierarchy.
382 */
383 static TREEVIEW_ITEM *
384 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
385 {
386 if (tvItem->prevSibling)
387 {
388 /* This item has a prevSibling, get the last item in the sibling's tree. */
389 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
390
391 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
392 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
393 else
394 return upItem;
395 }
396 else
397 {
398 /* this item does not have a prevSibling, get the parent */
399 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
400 }
401 }
402
403
404 /***************************************************************************
405 * This method returns the next physical item in the treeview not
406 * considering the tree hierarchy.
407 */
408 static TREEVIEW_ITEM *
409 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
410 {
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(item != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return item;
467
468 do
469 {
470 previousItem = item;
471 item = next_item(infoPtr, item);
472
473 } while (--count && item != NULL);
474
475
476 return item ? item : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static inline BOOL
503 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
504 {
505 TRACE("code=%d, hdr=%p\n", code, hdr);
506
507 hdr->hwndFrom = infoPtr->hwnd;
508 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
509 hdr->code = get_notifycode(infoPtr, code);
510
511 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
512 }
513
514 static BOOL
515 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
516 {
517 NMHDR hdr;
518 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
519 }
520
521 static VOID
522 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
523 {
524 tvItem->mask = mask;
525 tvItem->hItem = item;
526 tvItem->state = item->state;
527 tvItem->stateMask = 0;
528 tvItem->iImage = item->iImage;
529 tvItem->iSelectedImage = item->iSelectedImage;
530 tvItem->cChildren = item->cChildren;
531 tvItem->lParam = item->lParam;
532
533 if(mask & TVIF_TEXT)
534 {
535 if (!infoPtr->bNtfUnicode)
536 {
537 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
538 tvItem->pszText = Alloc (tvItem->cchTextMax);
539 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
540 }
541 else
542 {
543 tvItem->cchTextMax = item->cchTextMax;
544 tvItem->pszText = item->pszText;
545 }
546 }
547 else
548 {
549 tvItem->cchTextMax = 0;
550 tvItem->pszText = NULL;
551 }
552 }
553
554 static BOOL
555 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
556 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
557 {
558 NMTREEVIEWW nmhdr;
559 BOOL ret;
560
561 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
562 code, action, oldItem, newItem);
563
564 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
565 nmhdr.action = action;
566
567 if (oldItem)
568 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
569
570 if (newItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
572
573 nmhdr.ptDrag.x = 0;
574 nmhdr.ptDrag.y = 0;
575
576 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
577 if (!infoPtr->bNtfUnicode)
578 {
579 Free(nmhdr.itemOld.pszText);
580 Free(nmhdr.itemNew.pszText);
581 }
582 return ret;
583 }
584
585 static BOOL
586 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
587 HTREEITEM dragItem, POINT pt)
588 {
589 NMTREEVIEWW nmhdr;
590
591 TRACE("code:%d dragitem:%p\n", code, dragItem);
592
593 nmhdr.action = 0;
594 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
595 nmhdr.itemNew.hItem = dragItem;
596 nmhdr.itemNew.state = dragItem->state;
597 nmhdr.itemNew.lParam = dragItem->lParam;
598
599 nmhdr.ptDrag.x = pt.x;
600 nmhdr.ptDrag.y = pt.y;
601
602 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
603 }
604
605
606 static BOOL
607 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
608 HDC hdc, RECT rc)
609 {
610 NMTVCUSTOMDRAW nmcdhdr;
611 NMCUSTOMDRAW *nmcd;
612
613 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
614
615 nmcd = &nmcdhdr.nmcd;
616 nmcd->dwDrawStage = dwDrawStage;
617 nmcd->hdc = hdc;
618 nmcd->rc = rc;
619 nmcd->dwItemSpec = 0;
620 nmcd->uItemState = 0;
621 nmcd->lItemlParam = 0;
622 nmcdhdr.clrText = infoPtr->clrText;
623 nmcdhdr.clrTextBk = infoPtr->clrBk;
624 nmcdhdr.iLevel = 0;
625
626 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
627 }
628
629 /* FIXME: need to find out when the flags in uItemState need to be set */
630
631 static BOOL
632 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
633 TREEVIEW_ITEM *item, UINT uItemDrawState,
634 NMTVCUSTOMDRAW *nmcdhdr)
635 {
636 NMCUSTOMDRAW *nmcd;
637 DWORD dwDrawStage;
638 DWORD_PTR dwItemSpec;
639 UINT uItemState;
640
641 dwDrawStage = CDDS_ITEM | uItemDrawState;
642 dwItemSpec = (DWORD_PTR)item;
643 uItemState = 0;
644 if (item->state & TVIS_SELECTED)
645 uItemState |= CDIS_SELECTED;
646 if (item == infoPtr->selectedItem)
647 uItemState |= CDIS_FOCUS;
648 if (item == infoPtr->hotItem)
649 uItemState |= CDIS_HOT;
650
651 nmcd = &nmcdhdr->nmcd;
652 nmcd->dwDrawStage = dwDrawStage;
653 nmcd->hdc = hdc;
654 nmcd->rc = item->rect;
655 nmcd->dwItemSpec = dwItemSpec;
656 nmcd->uItemState = uItemState;
657 nmcd->lItemlParam = item->lParam;
658 nmcdhdr->iLevel = item->iLevel;
659
660 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
661 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
662 nmcd->uItemState, nmcd->lItemlParam);
663
664 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
665 }
666
667 static BOOL
668 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
669 {
670 NMTVDISPINFOW tvdi;
671 BOOL ret;
672
673 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
674 &tvdi.item, editItem);
675
676 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
677
678 if (!infoPtr->bNtfUnicode)
679 Free(tvdi.item.pszText);
680
681 return ret;
682 }
683
684 static void
685 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
686 UINT mask)
687 {
688 NMTVDISPINFOEXW callback;
689
690 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
691 mask &= item->callbackMask;
692
693 if (mask == 0) return;
694
695 /* 'state' always contains valid value, as well as 'lParam'.
696 * All other parameters are uninitialized.
697 */
698 callback.item.pszText = item->pszText;
699 callback.item.cchTextMax = item->cchTextMax;
700 callback.item.mask = mask;
701 callback.item.hItem = item;
702 callback.item.state = item->state;
703 callback.item.lParam = item->lParam;
704
705 /* If text is changed we need to recalculate textWidth */
706 if (mask & TVIF_TEXT)
707 item->textWidth = 0;
708
709 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
710 TRACE("resulting code 0x%08x\n", callback.hdr.code);
711
712 /* It may have changed due to a call to SetItem. */
713 mask &= item->callbackMask;
714
715 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
716 {
717 /* Instead of copying text into our buffer user specified his own */
718 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
719 LPWSTR newText;
720 int buflen;
721 int len = MultiByteToWideChar( CP_ACP, 0,
722 (LPSTR)callback.item.pszText, -1,
723 NULL, 0);
724 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
725 newText = ReAlloc(item->pszText, buflen);
726
727 TRACE("returned str %s, len=%d, buflen=%d\n",
728 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
729
730 if (newText)
731 {
732 item->pszText = newText;
733 MultiByteToWideChar( CP_ACP, 0,
734 (LPSTR)callback.item.pszText, -1,
735 item->pszText, buflen/sizeof(WCHAR));
736 item->cchTextMax = buflen/sizeof(WCHAR);
737 }
738 /* If ReAlloc fails we have nothing to do, but keep original text */
739 }
740 else {
741 int len = max(lstrlenW(callback.item.pszText) + 1,
742 TEXT_CALLBACK_SIZE);
743 LPWSTR newText = ReAlloc(item->pszText, len);
744
745 TRACE("returned wstr %s, len=%d\n",
746 debugstr_w(callback.item.pszText), len);
747
748 if (newText)
749 {
750 item->pszText = newText;
751 strcpyW(item->pszText, callback.item.pszText);
752 item->cchTextMax = len;
753 }
754 /* If ReAlloc fails we have nothing to do, but keep original text */
755 }
756 }
757 else if (mask & TVIF_TEXT) {
758 /* User put text into our buffer, that is ok unless A string */
759 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
760 LPWSTR newText;
761 int buflen;
762 int len = MultiByteToWideChar( CP_ACP, 0,
763 (LPSTR)callback.item.pszText, -1,
764 NULL, 0);
765 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
766 newText = Alloc(buflen);
767
768 TRACE("same buffer str %s, len=%d, buflen=%d\n",
769 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
770
771 if (newText)
772 {
773 LPWSTR oldText = item->pszText;
774 item->pszText = newText;
775 MultiByteToWideChar( CP_ACP, 0,
776 (LPSTR)callback.item.pszText, -1,
777 item->pszText, buflen/sizeof(WCHAR));
778 item->cchTextMax = buflen/sizeof(WCHAR);
779 Free(oldText);
780 }
781 }
782 }
783
784 if (mask & TVIF_IMAGE)
785 item->iImage = callback.item.iImage;
786
787 if (mask & TVIF_SELECTEDIMAGE)
788 item->iSelectedImage = callback.item.iSelectedImage;
789
790 if (mask & TVIF_EXPANDEDIMAGE)
791 item->iExpandedImage = callback.item.iExpandedImage;
792
793 if (mask & TVIF_CHILDREN)
794 item->cChildren = callback.item.cChildren;
795
796 if (callback.item.mask & TVIF_STATE)
797 {
798 item->state &= ~callback.item.stateMask;
799 item->state |= (callback.item.state & callback.item.stateMask);
800 }
801
802 /* These members are now permanently set. */
803 if (callback.item.mask & TVIF_DI_SETITEM)
804 item->callbackMask &= ~callback.item.mask;
805 }
806
807 /***************************************************************************
808 * This function uses cChildren field to decide whether the item has
809 * children or not.
810 * Note: if this returns TRUE, the child items may not actually exist,
811 * they could be virtual.
812 *
813 * Just use item->firstChild to check for physical children.
814 */
815 static BOOL
816 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
817 {
818 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
819
820 return item->cChildren > 0;
821 }
822
823 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
824 {
825 INT format;
826
827 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
828
829 if (nCommand != NF_REQUERY) return 0;
830
831 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
832 TRACE("format=%d\n", format);
833
834 /* Invalid format returned by NF_QUERY defaults to ANSI*/
835 if (format != NFR_ANSI && format != NFR_UNICODE)
836 format = NFR_ANSI;
837
838 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
839
840 return format;
841 }
842
843 /* Item Position ********************************************************/
844
845 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
846 static VOID
847 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
848 {
849 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
850 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
851 > TVS_LINESATROOT);
852
853 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
854 - infoPtr->scrollX;
855 item->stateOffset = item->linesOffset + infoPtr->uIndent;
856 item->imageOffset = item->stateOffset
857 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
858 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
859 }
860
861 static VOID
862 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
863 {
864 HDC hdc;
865 HFONT hOldFont=0;
866 SIZE sz;
867
868 /* DRAW's OM docker creates items like this */
869 if (item->pszText == NULL)
870 {
871 item->textWidth = 0;
872 return;
873 }
874
875 if (hDC != 0)
876 {
877 hdc = hDC;
878 }
879 else
880 {
881 hdc = GetDC(infoPtr->hwnd);
882 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
883 }
884
885 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
886 item->textWidth = sz.cx;
887
888 if (hDC == 0)
889 {
890 SelectObject(hdc, hOldFont);
891 ReleaseDC(0, hdc);
892 }
893 }
894
895 static VOID
896 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
897 {
898 item->rect.top = infoPtr->uItemHeight *
899 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
900
901 item->rect.bottom = item->rect.top
902 + infoPtr->uItemHeight * item->iIntegral - 1;
903
904 item->rect.left = 0;
905 item->rect.right = infoPtr->clientWidth;
906 }
907
908 /* We know that only items after start need their order updated. */
909 static void
910 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
911 {
912 TREEVIEW_ITEM *item;
913 int order;
914
915 if (!start)
916 {
917 start = infoPtr->root->firstChild;
918 order = 0;
919 }
920 else
921 order = start->visibleOrder;
922
923 for (item = start; item != NULL;
924 item = TREEVIEW_GetNextListItem(infoPtr, item))
925 {
926 if (!ISVISIBLE(item) && order > 0)
927 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
928 item->visibleOrder = order;
929 order += item->iIntegral;
930 }
931
932 infoPtr->maxVisibleOrder = order;
933
934 for (item = start; item != NULL;
935 item = TREEVIEW_GetNextListItem(infoPtr, item))
936 {
937 TREEVIEW_ComputeItemRect(infoPtr, item);
938 }
939 }
940
941
942 /* Update metrics of all items in selected subtree.
943 * root must be expanded
944 */
945 static VOID
946 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
947 {
948 TREEVIEW_ITEM *sibling;
949 HDC hdc;
950 HFONT hOldFont;
951
952 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
953 return;
954
955 root->state &= ~TVIS_EXPANDED;
956 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
957 root->state |= TVIS_EXPANDED;
958
959 hdc = GetDC(infoPtr->hwnd);
960 hOldFont = SelectObject(hdc, infoPtr->hFont);
961
962 for (; root != sibling;
963 root = TREEVIEW_GetNextListItem(infoPtr, root))
964 {
965 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
966
967 if (root->callbackMask & TVIF_TEXT)
968 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
969
970 if (root->textWidth == 0)
971 {
972 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
973 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
974 }
975 }
976
977 SelectObject(hdc, hOldFont);
978 ReleaseDC(infoPtr->hwnd, hdc);
979 }
980
981 /* Item Allocation **********************************************************/
982
983 static TREEVIEW_ITEM *
984 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
985 {
986 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
987
988 if (!newItem)
989 return NULL;
990
991 /* I_IMAGENONE would make more sense but this is neither what is
992 * documented (MSDN doesn't specify) nor what Windows actually does
993 * (it sets it to zero)... and I can so imagine an application using
994 * inc/dec to toggle the images. */
995 newItem->iImage = 0;
996 newItem->iSelectedImage = 0;
997 newItem->iExpandedImage = (WORD)I_IMAGENONE;
998 newItem->infoPtr = infoPtr;
999
1000 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1001 {
1002 Free(newItem);
1003 return NULL;
1004 }
1005
1006 return newItem;
1007 }
1008
1009 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1010 * free item->pszText. */
1011 static void
1012 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1013 {
1014 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1015 if (infoPtr->selectedItem == item)
1016 infoPtr->selectedItem = NULL;
1017 if (infoPtr->hotItem == item)
1018 infoPtr->hotItem = NULL;
1019 if (infoPtr->focusedItem == item)
1020 infoPtr->focusedItem = NULL;
1021 if (infoPtr->firstVisible == item)
1022 infoPtr->firstVisible = NULL;
1023 if (infoPtr->dropItem == item)
1024 infoPtr->dropItem = NULL;
1025 if (infoPtr->insertMarkItem == item)
1026 infoPtr->insertMarkItem = NULL;
1027 Free(item);
1028 }
1029
1030
1031 /* Item Insertion *******************************************************/
1032
1033 /***************************************************************************
1034 * This method inserts newItem before sibling as a child of parent.
1035 * sibling can be NULL, but only if parent has no children.
1036 */
1037 static void
1038 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1039 TREEVIEW_ITEM *parent)
1040 {
1041 assert(parent != NULL);
1042
1043 if (sibling != NULL)
1044 {
1045 assert(sibling->parent == parent);
1046
1047 if (sibling->prevSibling != NULL)
1048 sibling->prevSibling->nextSibling = newItem;
1049
1050 newItem->prevSibling = sibling->prevSibling;
1051 sibling->prevSibling = newItem;
1052 }
1053 else
1054 newItem->prevSibling = NULL;
1055
1056 newItem->nextSibling = sibling;
1057
1058 if (parent->firstChild == sibling)
1059 parent->firstChild = newItem;
1060
1061 if (parent->lastChild == NULL)
1062 parent->lastChild = newItem;
1063 }
1064
1065 /***************************************************************************
1066 * This method inserts newItem after sibling as a child of parent.
1067 * sibling can be NULL, but only if parent has no children.
1068 */
1069 static void
1070 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1071 TREEVIEW_ITEM *parent)
1072 {
1073 assert(parent != NULL);
1074
1075 if (sibling != NULL)
1076 {
1077 assert(sibling->parent == parent);
1078
1079 if (sibling->nextSibling != NULL)
1080 sibling->nextSibling->prevSibling = newItem;
1081
1082 newItem->nextSibling = sibling->nextSibling;
1083 sibling->nextSibling = newItem;
1084 }
1085 else
1086 newItem->nextSibling = NULL;
1087
1088 newItem->prevSibling = sibling;
1089
1090 if (parent->lastChild == sibling)
1091 parent->lastChild = newItem;
1092
1093 if (parent->firstChild == NULL)
1094 parent->firstChild = newItem;
1095 }
1096
1097 static BOOL
1098 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1099 const TVITEMEXW *tvItem, BOOL isW)
1100 {
1101 UINT callbackClear = 0;
1102 UINT callbackSet = 0;
1103
1104 TRACE("item %p\n", item);
1105 /* Do this first in case it fails. */
1106 if (tvItem->mask & TVIF_TEXT)
1107 {
1108 item->textWidth = 0; /* force width recalculation */
1109 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1110 {
1111 int len;
1112 LPWSTR newText;
1113 if (isW)
1114 len = lstrlenW(tvItem->pszText) + 1;
1115 else
1116 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1117
1118 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1119
1120 if (newText == NULL) return FALSE;
1121
1122 callbackClear |= TVIF_TEXT;
1123
1124 item->pszText = newText;
1125 item->cchTextMax = len;
1126 if (isW)
1127 lstrcpynW(item->pszText, tvItem->pszText, len);
1128 else
1129 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1130 item->pszText, len);
1131
1132 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1133 }
1134 else
1135 {
1136 callbackSet |= TVIF_TEXT;
1137
1138 item->pszText = ReAlloc(item->pszText,
1139 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1140 item->cchTextMax = TEXT_CALLBACK_SIZE;
1141 TRACE("setting callback, item %p\n", item);
1142 }
1143 }
1144
1145 if (tvItem->mask & TVIF_CHILDREN)
1146 {
1147 item->cChildren = tvItem->cChildren;
1148
1149 if (item->cChildren == I_CHILDRENCALLBACK)
1150 callbackSet |= TVIF_CHILDREN;
1151 else
1152 callbackClear |= TVIF_CHILDREN;
1153 }
1154
1155 if (tvItem->mask & TVIF_IMAGE)
1156 {
1157 item->iImage = tvItem->iImage;
1158
1159 if (item->iImage == I_IMAGECALLBACK)
1160 callbackSet |= TVIF_IMAGE;
1161 else
1162 callbackClear |= TVIF_IMAGE;
1163 }
1164
1165 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1166 {
1167 item->iSelectedImage = tvItem->iSelectedImage;
1168
1169 if (item->iSelectedImage == I_IMAGECALLBACK)
1170 callbackSet |= TVIF_SELECTEDIMAGE;
1171 else
1172 callbackClear |= TVIF_SELECTEDIMAGE;
1173 }
1174
1175 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1176 {
1177 item->iExpandedImage = tvItem->iExpandedImage;
1178
1179 if (item->iExpandedImage == I_IMAGECALLBACK)
1180 callbackSet |= TVIF_EXPANDEDIMAGE;
1181 else
1182 callbackClear |= TVIF_EXPANDEDIMAGE;
1183 }
1184
1185 if (tvItem->mask & TVIF_PARAM)
1186 item->lParam = tvItem->lParam;
1187
1188 /* If the application sets TVIF_INTEGRAL without
1189 * supplying a TVITEMEX structure, it's toast. */
1190 if (tvItem->mask & TVIF_INTEGRAL)
1191 item->iIntegral = tvItem->iIntegral;
1192
1193 if (tvItem->mask & TVIF_STATE)
1194 {
1195 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1196 tvItem->stateMask);
1197 item->state &= ~tvItem->stateMask;
1198 item->state |= (tvItem->state & tvItem->stateMask);
1199 }
1200
1201 if (tvItem->mask & TVIF_STATEEX)
1202 {
1203 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1204 }
1205
1206 item->callbackMask |= callbackSet;
1207 item->callbackMask &= ~callbackClear;
1208
1209 return TRUE;
1210 }
1211
1212 /* Note that the new item is pre-zeroed. */
1213 static LRESULT
1214 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1215 {
1216 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1217 HTREEITEM insertAfter;
1218 TREEVIEW_ITEM *newItem, *parentItem;
1219 BOOL bTextUpdated = FALSE;
1220
1221 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1222 {
1223 parentItem = infoPtr->root;
1224 }
1225 else
1226 {
1227 parentItem = ptdi->hParent;
1228
1229 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1230 {
1231 WARN("invalid parent %p\n", parentItem);
1232 return 0;
1233 }
1234 }
1235
1236 insertAfter = ptdi->hInsertAfter;
1237
1238 /* Validate this now for convenience. */
1239 switch ((DWORD_PTR)insertAfter)
1240 {
1241 case (DWORD_PTR)TVI_FIRST:
1242 case (DWORD_PTR)TVI_LAST:
1243 case (DWORD_PTR)TVI_SORT:
1244 break;
1245
1246 default:
1247 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1248 insertAfter->parent != parentItem)
1249 {
1250 WARN("invalid insert after %p\n", insertAfter);
1251 insertAfter = TVI_LAST;
1252 }
1253 }
1254
1255 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1256 (tvItem->mask & TVIF_TEXT)
1257 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1258 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1259 : "<no label>");
1260
1261 newItem = TREEVIEW_AllocateItem(infoPtr);
1262 if (newItem == NULL)
1263 return 0;
1264
1265 newItem->parent = parentItem;
1266 newItem->iIntegral = 1;
1267 newItem->visibleOrder = -1;
1268
1269 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1270 return 0;
1271
1272 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1273
1274 infoPtr->uNumItems++;
1275
1276 switch ((DWORD_PTR)insertAfter)
1277 {
1278 case (DWORD_PTR)TVI_FIRST:
1279 {
1280 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1281 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1282 if (infoPtr->firstVisible == originalFirst)
1283 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1284 }
1285 break;
1286
1287 case (DWORD_PTR)TVI_LAST:
1288 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1289 break;
1290
1291 /* hInsertAfter names a specific item we want to insert after */
1292 default:
1293 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1294 break;
1295
1296 case (DWORD_PTR)TVI_SORT:
1297 {
1298 TREEVIEW_ITEM *aChild;
1299 TREEVIEW_ITEM *previousChild = NULL;
1300 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1301 BOOL bItemInserted = FALSE;
1302
1303 aChild = parentItem->firstChild;
1304
1305 bTextUpdated = TRUE;
1306 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1307
1308 /* Iterate the parent children to see where we fit in */
1309 while (aChild != NULL)
1310 {
1311 INT comp;
1312
1313 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1314 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1315
1316 if (comp < 0) /* we are smaller than the current one */
1317 {
1318 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1319 if (infoPtr->firstVisible == originalFirst &&
1320 aChild == originalFirst)
1321 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1322 bItemInserted = TRUE;
1323 break;
1324 }
1325 else if (comp > 0) /* we are bigger than the current one */
1326 {
1327 previousChild = aChild;
1328
1329 /* This will help us to exit if there is no more sibling */
1330 aChild = (aChild->nextSibling == 0)
1331 ? NULL
1332 : aChild->nextSibling;
1333
1334 /* Look at the next item */
1335 continue;
1336 }
1337 else if (comp == 0)
1338 {
1339 /*
1340 * An item with this name is already existing, therefore,
1341 * we add after the one we found
1342 */
1343 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1344 bItemInserted = TRUE;
1345 break;
1346 }
1347 }
1348
1349 /*
1350 * we reach the end of the child list and the item has not
1351 * yet been inserted, therefore, insert it after the last child.
1352 */
1353 if ((!bItemInserted) && (aChild == NULL))
1354 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1355
1356 break;
1357 }
1358 }
1359
1360
1361 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1362 newItem->parent, tvItem->mask);
1363
1364 newItem->iLevel = newItem->parent->iLevel + 1;
1365
1366 if (newItem->parent->cChildren == 0)
1367 newItem->parent->cChildren = 1;
1368
1369 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1370 {
1371 if (STATEIMAGEINDEX(newItem->state) == 0)
1372 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1373 }
1374
1375 if (infoPtr->firstVisible == NULL)
1376 infoPtr->firstVisible = newItem;
1377
1378 TREEVIEW_VerifyTree(infoPtr);
1379
1380 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1381
1382 if (parentItem == infoPtr->root ||
1383 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1384 {
1385 TREEVIEW_ITEM *item;
1386 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1387
1388 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1389 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1390
1391 if (!bTextUpdated)
1392 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1393
1394 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1395 TREEVIEW_UpdateScrollBars(infoPtr);
1396 /*
1397 * if the item was inserted in a visible part of the tree,
1398 * invalidate it, as well as those after it
1399 */
1400 for (item = newItem;
1401 item != NULL;
1402 item = TREEVIEW_GetNextListItem(infoPtr, item))
1403 TREEVIEW_Invalidate(infoPtr, item);
1404 }
1405 else
1406 {
1407 /* refresh treeview if newItem is the first item inserted under parentItem */
1408 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1409 {
1410 /* parent got '+' - update it */
1411 TREEVIEW_Invalidate(infoPtr, parentItem);
1412 }
1413 }
1414
1415 return (LRESULT)newItem;
1416 }
1417
1418 /* Item Deletion ************************************************************/
1419 static void
1420 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1421
1422 static void
1423 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1424 {
1425 TREEVIEW_ITEM *kill = parentItem->firstChild;
1426
1427 while (kill != NULL)
1428 {
1429 TREEVIEW_ITEM *next = kill->nextSibling;
1430
1431 TREEVIEW_RemoveItem(infoPtr, kill);
1432
1433 kill = next;
1434 }
1435
1436 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1437 assert(parentItem->firstChild == NULL);
1438 assert(parentItem->lastChild == NULL);
1439 }
1440
1441 static void
1442 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1443 {
1444 TREEVIEW_ITEM *parentItem;
1445
1446 assert(item != NULL);
1447 assert(item->parent != NULL); /* i.e. it must not be the root */
1448
1449 parentItem = item->parent;
1450
1451 if (parentItem->firstChild == item)
1452 parentItem->firstChild = item->nextSibling;
1453
1454 if (parentItem->lastChild == item)
1455 parentItem->lastChild = item->prevSibling;
1456
1457 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1458 && parentItem->cChildren > 0)
1459 parentItem->cChildren = 0;
1460
1461 if (item->prevSibling)
1462 item->prevSibling->nextSibling = item->nextSibling;
1463
1464 if (item->nextSibling)
1465 item->nextSibling->prevSibling = item->prevSibling;
1466 }
1467
1468 static void
1469 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1470 {
1471 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1472
1473 if (item->firstChild)
1474 TREEVIEW_RemoveAllChildren(infoPtr, item);
1475
1476 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1477 TVIF_HANDLE | TVIF_PARAM, item, 0);
1478
1479 TREEVIEW_UnlinkItem(item);
1480
1481 infoPtr->uNumItems--;
1482
1483 if (item->pszText != LPSTR_TEXTCALLBACKW)
1484 Free(item->pszText);
1485
1486 TREEVIEW_FreeItem(infoPtr, item);
1487 }
1488
1489
1490 /* Empty out the tree. */
1491 static void
1492 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1493 {
1494 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1495
1496 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1497 }
1498
1499 static LRESULT
1500 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1501 {
1502 TREEVIEW_ITEM *newSelection = NULL;
1503 TREEVIEW_ITEM *newFirstVisible = NULL;
1504 TREEVIEW_ITEM *parent, *prev = NULL;
1505 BOOL visible = FALSE;
1506
1507 if (item == TVI_ROOT || !item)
1508 {
1509 TRACE("TVI_ROOT\n");
1510 parent = infoPtr->root;
1511 newSelection = NULL;
1512 visible = TRUE;
1513 TREEVIEW_RemoveTree(infoPtr);
1514 }
1515 else
1516 {
1517 if (!TREEVIEW_ValidItem(infoPtr, item))
1518 return FALSE;
1519
1520 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1521 parent = item->parent;
1522
1523 if (ISVISIBLE(item))
1524 {
1525 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1526 visible = TRUE;
1527 }
1528
1529 if (infoPtr->selectedItem != NULL
1530 && (item == infoPtr->selectedItem
1531 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1532 {
1533 if (item->nextSibling)
1534 newSelection = item->nextSibling;
1535 else if (item->parent != infoPtr->root)
1536 newSelection = item->parent;
1537 else
1538 newSelection = item->prevSibling;
1539 TRACE("newSelection = %p\n", newSelection);
1540 }
1541
1542 if (infoPtr->firstVisible == item)
1543 {
1544 if (item->nextSibling)
1545 newFirstVisible = item->nextSibling;
1546 else if (item->prevSibling)
1547 newFirstVisible = item->prevSibling;
1548 else if (item->parent != infoPtr->root)
1549 newFirstVisible = item->parent;
1550 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1551 }
1552 else
1553 newFirstVisible = infoPtr->firstVisible;
1554
1555 TREEVIEW_RemoveItem(infoPtr, item);
1556 }
1557
1558 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1559 if (!infoPtr->selectedItem && newSelection)
1560 {
1561 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1562 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1563 }
1564
1565 /* Validate insertMark dropItem.
1566 * hotItem ??? - used for comparison only.
1567 */
1568 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1569 infoPtr->insertMarkItem = 0;
1570
1571 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1572 infoPtr->dropItem = 0;
1573
1574 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1575 newFirstVisible = infoPtr->root->firstChild;
1576
1577 TREEVIEW_VerifyTree(infoPtr);
1578
1579 if (!infoPtr->bRedraw) return TRUE;
1580
1581 if (visible)
1582 {
1583 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1584 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1585 TREEVIEW_UpdateScrollBars(infoPtr);
1586 TREEVIEW_Invalidate(infoPtr, NULL);
1587 }
1588 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1589 {
1590 /* parent lost '+/-' - update it */
1591 TREEVIEW_Invalidate(infoPtr, parent);
1592 }
1593
1594 return TRUE;
1595 }
1596
1597
1598 /* Get/Set Messages *********************************************************/
1599 static LRESULT
1600 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1601 {
1602 infoPtr->bRedraw = wParam != 0;
1603
1604 if (infoPtr->bRedraw)
1605 {
1606 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1607 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1608 TREEVIEW_UpdateScrollBars(infoPtr);
1609 TREEVIEW_Invalidate(infoPtr, NULL);
1610 }
1611 return 0;
1612 }
1613
1614 static LRESULT
1615 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1616 {
1617 TRACE("\n");
1618 return infoPtr->uIndent;
1619 }
1620
1621 static LRESULT
1622 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1623 {
1624 TRACE("\n");
1625
1626 if (newIndent < MINIMUM_INDENT)
1627 newIndent = MINIMUM_INDENT;
1628
1629 if (infoPtr->uIndent != newIndent)
1630 {
1631 infoPtr->uIndent = newIndent;
1632 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1633 TREEVIEW_UpdateScrollBars(infoPtr);
1634 TREEVIEW_Invalidate(infoPtr, NULL);
1635 }
1636
1637 return 0;
1638 }
1639
1640
1641 static LRESULT
1642 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1643 {
1644 TRACE("\n");
1645 return (LRESULT)infoPtr->hwndToolTip;
1646 }
1647
1648 static LRESULT
1649 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1650 {
1651 HWND prevToolTip;
1652
1653 TRACE("\n");
1654 prevToolTip = infoPtr->hwndToolTip;
1655 infoPtr->hwndToolTip = hwndTT;
1656
1657 return (LRESULT)prevToolTip;
1658 }
1659
1660 static LRESULT
1661 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1662 {
1663 BOOL rc = infoPtr->bNtfUnicode;
1664 infoPtr->bNtfUnicode = fUnicode;
1665 return rc;
1666 }
1667
1668 static LRESULT
1669 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1670 {
1671 return infoPtr->bNtfUnicode;
1672 }
1673
1674 static LRESULT
1675 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1676 {
1677 return infoPtr->uScrollTime;
1678 }
1679
1680 static LRESULT
1681 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1682 {
1683 UINT uOldScrollTime = infoPtr->uScrollTime;
1684
1685 infoPtr->uScrollTime = min(uScrollTime, 100);
1686
1687 return uOldScrollTime;
1688 }
1689
1690
1691 static LRESULT
1692 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1693 {
1694 TRACE("\n");
1695
1696 switch (wParam)
1697 {
1698 case TVSIL_NORMAL:
1699 return (LRESULT)infoPtr->himlNormal;
1700
1701 case TVSIL_STATE:
1702 return (LRESULT)infoPtr->himlState;
1703
1704 default:
1705 return 0;
1706 }
1707 }
1708
1709 #define TVHEIGHT_MIN 16
1710 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1711
1712 /* Compute the natural height for items. */
1713 static UINT
1714 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1715 {
1716 TEXTMETRICW tm;
1717 HDC hdc = GetDC(0);
1718 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1719 UINT height;
1720
1721 /* Height is the maximum of:
1722 * 16 (a hack because our fonts are tiny), and
1723 * The text height + border & margin, and
1724 * The size of the normal image list
1725 */
1726 GetTextMetricsW(hdc, &tm);
1727 SelectObject(hdc, hOldFont);
1728 ReleaseDC(0, hdc);
1729
1730 height = TVHEIGHT_MIN;
1731 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1732 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1733 if (height < infoPtr->normalImageHeight)
1734 height = infoPtr->normalImageHeight;
1735
1736 /* Round down, unless we support odd ("non even") heights. */
1737 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1738 height &= ~1;
1739
1740 return height;
1741 }
1742
1743 static LRESULT
1744 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1745 {
1746 HIMAGELIST himlOld = 0;
1747 int oldWidth = infoPtr->normalImageWidth;
1748 int oldHeight = infoPtr->normalImageHeight;
1749
1750 TRACE("%u,%p\n", type, himlNew);
1751
1752 switch (type)
1753 {
1754 case TVSIL_NORMAL:
1755 himlOld = infoPtr->himlNormal;
1756 infoPtr->himlNormal = himlNew;
1757
1758 if (himlNew)
1759 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1760 &infoPtr->normalImageHeight);
1761 else
1762 {
1763 infoPtr->normalImageWidth = 0;
1764 infoPtr->normalImageHeight = 0;
1765 }
1766
1767 break;
1768
1769 case TVSIL_STATE:
1770 himlOld = infoPtr->himlState;
1771 infoPtr->himlState = himlNew;
1772
1773 if (himlNew)
1774 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1775 &infoPtr->stateImageHeight);
1776 else
1777 {
1778 infoPtr->stateImageWidth = 0;
1779 infoPtr->stateImageHeight = 0;
1780 }
1781
1782 break;
1783
1784 default:
1785 ERR("unknown imagelist type %u\n", type);
1786 }
1787
1788 if (oldWidth != infoPtr->normalImageWidth ||
1789 oldHeight != infoPtr->normalImageHeight)
1790 {
1791 BOOL bRecalcVisible = FALSE;
1792
1793 if (oldHeight != infoPtr->normalImageHeight &&
1794 !infoPtr->bHeightSet)
1795 {
1796 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1797 bRecalcVisible = TRUE;
1798 }
1799
1800 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1801 infoPtr->normalImageWidth != infoPtr->uIndent)
1802 {
1803 infoPtr->uIndent = infoPtr->normalImageWidth;
1804 bRecalcVisible = TRUE;
1805 }
1806
1807 if (bRecalcVisible)
1808 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1809
1810 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1811 TREEVIEW_UpdateScrollBars(infoPtr);
1812 }
1813
1814 TREEVIEW_Invalidate(infoPtr, NULL);
1815
1816 return (LRESULT)himlOld;
1817 }
1818
1819 static LRESULT
1820 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1821 {
1822 INT prevHeight = infoPtr->uItemHeight;
1823
1824 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1825 if (newHeight == -1)
1826 {
1827 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1828 infoPtr->bHeightSet = FALSE;
1829 }
1830 else
1831 {
1832 if (newHeight == 0) newHeight = 1;
1833 infoPtr->uItemHeight = newHeight;
1834 infoPtr->bHeightSet = TRUE;
1835 }
1836
1837 /* Round down, unless we support odd ("non even") heights. */
1838 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1839 {
1840 infoPtr->uItemHeight &= ~1;
1841 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1842 }
1843
1844 if (infoPtr->uItemHeight != prevHeight)
1845 {
1846 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1847 TREEVIEW_UpdateScrollBars(infoPtr);
1848 TREEVIEW_Invalidate(infoPtr, NULL);
1849 }
1850
1851 return prevHeight;
1852 }
1853
1854 static LRESULT
1855 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1856 {
1857 TRACE("\n");
1858 return infoPtr->uItemHeight;
1859 }
1860
1861
1862 static LRESULT
1863 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1864 {
1865 TRACE("%p\n", infoPtr->hFont);
1866 return (LRESULT)infoPtr->hFont;
1867 }
1868
1869
1870 static INT CALLBACK
1871 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1872 {
1873 (void)unused;
1874
1875 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1876
1877 return 1;
1878 }
1879
1880 static LRESULT
1881 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1882 {
1883 UINT uHeight = infoPtr->uItemHeight;
1884
1885 TRACE("%p %i\n", hFont, bRedraw);
1886
1887 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1888
1889 DeleteObject(infoPtr->hBoldFont);
1890 DeleteObject(infoPtr->hUnderlineFont);
1891 DeleteObject(infoPtr->hBoldUnderlineFont);
1892 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1893 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1894 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1895
1896 if (!infoPtr->bHeightSet)
1897 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1898
1899 if (uHeight != infoPtr->uItemHeight)
1900 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1901
1902 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1903
1904 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1905 TREEVIEW_UpdateScrollBars(infoPtr);
1906
1907 if (bRedraw)
1908 TREEVIEW_Invalidate(infoPtr, NULL);
1909
1910 return 0;
1911 }
1912
1913
1914 static LRESULT
1915 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1916 {
1917 TRACE("\n");
1918 return (LRESULT)infoPtr->clrLine;
1919 }
1920
1921 static LRESULT
1922 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1923 {
1924 COLORREF prevColor = infoPtr->clrLine;
1925
1926 TRACE("\n");
1927 infoPtr->clrLine = color;
1928 return (LRESULT)prevColor;
1929 }
1930
1931
1932 static LRESULT
1933 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1934 {
1935 TRACE("\n");
1936 return (LRESULT)infoPtr->clrText;
1937 }
1938
1939 static LRESULT
1940 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1941 {
1942 COLORREF prevColor = infoPtr->clrText;
1943
1944 TRACE("\n");
1945 infoPtr->clrText = color;
1946
1947 if (infoPtr->clrText != prevColor)
1948 TREEVIEW_Invalidate(infoPtr, NULL);
1949
1950 return (LRESULT)prevColor;
1951 }
1952
1953
1954 static LRESULT
1955 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1956 {
1957 TRACE("\n");
1958 return (LRESULT)infoPtr->clrBk;
1959 }
1960
1961 static LRESULT
1962 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1963 {
1964 COLORREF prevColor = infoPtr->clrBk;
1965
1966 TRACE("\n");
1967 infoPtr->clrBk = newColor;
1968
1969 if (newColor != prevColor)
1970 TREEVIEW_Invalidate(infoPtr, NULL);
1971
1972 return (LRESULT)prevColor;
1973 }
1974
1975
1976 static LRESULT
1977 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1978 {
1979 TRACE("\n");
1980 return (LRESULT)infoPtr->clrInsertMark;
1981 }
1982
1983 static LRESULT
1984 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1985 {
1986 COLORREF prevColor = infoPtr->clrInsertMark;
1987
1988 TRACE("0x%08x\n", color);
1989 infoPtr->clrInsertMark = color;
1990
1991 return (LRESULT)prevColor;
1992 }
1993
1994
1995 static LRESULT
1996 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1997 {
1998 TRACE("%d %p\n", wParam, item);
1999
2000 if (!TREEVIEW_ValidItem(infoPtr, item))
2001 return 0;
2002
2003 infoPtr->insertBeforeorAfter = wParam;
2004 infoPtr->insertMarkItem = item;
2005
2006 TREEVIEW_Invalidate(infoPtr, NULL);
2007
2008 return 1;
2009 }
2010
2011
2012 /************************************************************************
2013 * Some serious braindamage here. lParam is a pointer to both the
2014 * input HTREEITEM and the output RECT.
2015 */
2016 static LRESULT
2017 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2018 {
2019 TREEVIEW_ITEM *item;
2020 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2021
2022 TRACE("\n");
2023
2024 if (pItem == NULL)
2025 return FALSE;
2026
2027 item = *pItem;
2028 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2029 return FALSE;
2030
2031 /*
2032 * If wParam is TRUE return the text size otherwise return
2033 * the whole item size
2034 */
2035 if (fTextRect)
2036 {
2037 /* Windows does not send TVN_GETDISPINFO here. */
2038
2039 lpRect->top = item->rect.top;
2040 lpRect->bottom = item->rect.bottom;
2041
2042 lpRect->left = item->textOffset;
2043 if (!item->textWidth)
2044 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2045
2046 lpRect->right = item->textOffset + item->textWidth + 4;
2047 }
2048 else
2049 {
2050 *lpRect = item->rect;
2051 }
2052
2053 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2054
2055 return TRUE;
2056 }
2057
2058 static inline LRESULT
2059 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2060 {
2061 /* Surprise! This does not take integral height into account. */
2062 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2063 return infoPtr->clientHeight / infoPtr->uItemHeight;
2064 }
2065
2066
2067 static LRESULT
2068 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2069 {
2070 TREEVIEW_ITEM *item = tvItem->hItem;
2071
2072 if (!TREEVIEW_ValidItem(infoPtr, item))
2073 {
2074 BOOL valid_item = FALSE;
2075 if (!item) return FALSE;
2076
2077 __TRY
2078 {
2079 infoPtr = item->infoPtr;
2080 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2081 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2082 }
2083 __EXCEPT_PAGE_FAULT
2084 {
2085 }
2086 __ENDTRY
2087 if (!valid_item) return FALSE;
2088 }
2089
2090 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2091
2092 if (tvItem->mask & TVIF_CHILDREN)
2093 {
2094 if (item->cChildren==I_CHILDRENCALLBACK)
2095 FIXME("I_CHILDRENCALLBACK not supported\n");
2096 tvItem->cChildren = item->cChildren;
2097 }
2098
2099 if (tvItem->mask & TVIF_HANDLE)
2100 tvItem->hItem = item;
2101
2102 if (tvItem->mask & TVIF_IMAGE)
2103 tvItem->iImage = item->iImage;
2104
2105 if (tvItem->mask & TVIF_INTEGRAL)
2106 tvItem->iIntegral = item->iIntegral;
2107
2108 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2109 tvItem->lParam = item->lParam;
2110
2111 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2112 tvItem->iSelectedImage = item->iSelectedImage;
2113
2114 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2115 tvItem->iExpandedImage = item->iExpandedImage;
2116
2117 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2118 tvItem->state = item->state;
2119
2120 if (tvItem->mask & TVIF_TEXT)
2121 {
2122 if (item->pszText == NULL)
2123 {
2124 if (tvItem->cchTextMax > 0)
2125 tvItem->pszText[0] = '\0';
2126 }
2127 else if (isW)
2128 {
2129 if (item->pszText == LPSTR_TEXTCALLBACKW)
2130 {
2131 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2132 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2133 }
2134 else
2135 {
2136 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2137 }
2138 }
2139 else
2140 {
2141 if (item->pszText == LPSTR_TEXTCALLBACKW)
2142 {
2143 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2144 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2145 }
2146 else
2147 {
2148 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2149 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2150 }
2151 }
2152 }
2153
2154 if (tvItem->mask & TVIF_STATEEX)
2155 {
2156 FIXME("Extended item state not supported, returning 0.\n");
2157 tvItem->uStateEx = 0;
2158 }
2159
2160 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2161 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2162
2163 return TRUE;
2164 }
2165
2166 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2167 * which is wrong. */
2168 static LRESULT
2169 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2170 {
2171 TREEVIEW_ITEM *item;
2172 TREEVIEW_ITEM originalItem;
2173
2174 item = tvItem->hItem;
2175
2176 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2177 tvItem->mask);
2178
2179 if (!TREEVIEW_ValidItem(infoPtr, item))
2180 return FALSE;
2181
2182 /* store the original item values */
2183 originalItem = *item;
2184
2185 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2186 return FALSE;
2187
2188 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2189 if ((tvItem->mask & TVIF_TEXT
2190 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2191 && ISVISIBLE(item))
2192 {
2193 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2194 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2195 }
2196
2197 if (tvItem->mask != 0 && ISVISIBLE(item))
2198 {
2199 /* The refresh updates everything, but we can't wait until then. */
2200 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2201
2202 /* if any of the item's values changed and it's not a callback, redraw the item */
2203 if (item_changed(&originalItem, item, tvItem))
2204 {
2205 if (tvItem->mask & TVIF_INTEGRAL)
2206 {
2207 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2208 TREEVIEW_UpdateScrollBars(infoPtr);
2209
2210 TREEVIEW_Invalidate(infoPtr, NULL);
2211 }
2212 else
2213 {
2214 TREEVIEW_UpdateScrollBars(infoPtr);
2215 TREEVIEW_Invalidate(infoPtr, item);
2216 }
2217 }
2218 }
2219
2220 return TRUE;
2221 }
2222
2223 static LRESULT
2224 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2225 {
2226 TRACE("\n");
2227
2228 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2229 return 0;
2230
2231 return (item->state & mask);
2232 }
2233
2234 static LRESULT
2235 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2236 {
2237 TREEVIEW_ITEM *retval;
2238
2239 retval = 0;
2240
2241 /* handle all the global data here */
2242 switch (which)
2243 {
2244 case TVGN_CHILD: /* Special case: child of 0 is root */
2245 if (item)
2246 break;
2247 /* fall through */
2248 case TVGN_ROOT:
2249 retval = infoPtr->root->firstChild;
2250 break;
2251
2252 case TVGN_CARET:
2253 retval = infoPtr->selectedItem;
2254 break;
2255
2256 case TVGN_FIRSTVISIBLE:
2257 retval = infoPtr->firstVisible;
2258 break;
2259
2260 case TVGN_DROPHILITE:
2261 retval = infoPtr->dropItem;
2262 break;
2263
2264 case TVGN_LASTVISIBLE:
2265 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2266 break;
2267 }
2268
2269 if (retval)
2270 {
2271 TRACE("flags:0x%x, returns %p\n", which, retval);
2272 return (LRESULT)retval;
2273 }
2274
2275 if (item == TVI_ROOT) item = infoPtr->root;
2276
2277 if (!TREEVIEW_ValidItem(infoPtr, item))
2278 return FALSE;
2279
2280 switch (which)
2281 {
2282 case TVGN_NEXT:
2283 retval = item->nextSibling;
2284 break;
2285 case TVGN_PREVIOUS:
2286 retval = item->prevSibling;
2287 break;
2288 case TVGN_PARENT:
2289 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2290 break;
2291 case TVGN_CHILD:
2292 retval = item->firstChild;
2293 break;
2294 case TVGN_NEXTVISIBLE:
2295 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2296 break;
2297 case TVGN_PREVIOUSVISIBLE:
2298 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2299 break;
2300 default:
2301 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2302 break;
2303 }
2304
2305 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2306 return (LRESULT)retval;
2307 }
2308
2309
2310 static LRESULT
2311 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2312 {
2313 TRACE(" %d\n", infoPtr->uNumItems);
2314 return (LRESULT)infoPtr->uNumItems;
2315 }
2316
2317 static VOID
2318 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2319 {
2320 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2321 {
2322 static const unsigned int state_table[] = { 0, 2, 1 };
2323
2324 unsigned int state;
2325
2326 state = STATEIMAGEINDEX(item->state);
2327 TRACE("state: 0x%x\n", state);
2328 item->state &= ~TVIS_STATEIMAGEMASK;
2329
2330 if (state < 3)
2331 state = state_table[state];
2332
2333 item->state |= INDEXTOSTATEIMAGEMASK(state);
2334
2335 TRACE("state: 0x%x\n", state);
2336 TREEVIEW_Invalidate(infoPtr, item);
2337 }
2338 }
2339
2340
2341 /* Painting *************************************************************/
2342
2343 /* Draw the lines and expand button for an item. Also draws one section
2344 * of the line from item's parent to item's parent's next sibling. */
2345 static void
2346 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2347 {
2348 LONG centerx, centery;
2349 BOOL lar = ((infoPtr->dwStyle
2350 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2351 > TVS_LINESATROOT);
2352 HBRUSH hbr, hbrOld;
2353 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2354
2355 if (!lar && item->iLevel == 0)
2356 return;
2357
2358 hbr = CreateSolidBrush(clrBk);
2359 hbrOld = SelectObject(hdc, hbr);
2360
2361 centerx = (item->linesOffset + item->stateOffset) / 2;
2362 centery = (item->rect.top + item->rect.bottom) / 2;
2363
2364 if (infoPtr->dwStyle & TVS_HASLINES)
2365 {
2366 HPEN hOldPen, hNewPen;
2367 HTREEITEM parent;
2368 LOGBRUSH lb;
2369
2370 /* Get a dotted grey pen */
2371 lb.lbStyle = BS_SOLID;
2372 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2373 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2374 hOldPen = SelectObject(hdc, hNewPen);
2375
2376 /* Make sure the center is on a dot (using +2 instead
2377 * of +1 gives us pixel-by-pixel compat with native) */
2378 centery = (centery + 2) & ~1;
2379
2380 MoveToEx(hdc, item->stateOffset, centery, NULL);
2381 LineTo(hdc, centerx - 1, centery);
2382
2383 if (item->prevSibling || item->parent != infoPtr->root)
2384 {
2385 MoveToEx(hdc, centerx, item->rect.top, NULL);
2386 LineTo(hdc, centerx, centery);
2387 }
2388
2389 if (item->nextSibling)
2390 {
2391 MoveToEx(hdc, centerx, centery, NULL);
2392 LineTo(hdc, centerx, item->rect.bottom + 1);
2393 }
2394
2395 /* Draw the line from our parent to its next sibling. */
2396 parent = item->parent;
2397 while (parent != infoPtr->root)
2398 {
2399 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2400
2401 if (parent->nextSibling
2402 /* skip top-levels unless TVS_LINESATROOT */
2403 && parent->stateOffset > parent->linesOffset)
2404 {
2405 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2406 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2407 }
2408
2409 parent = parent->parent;
2410 }
2411
2412 SelectObject(hdc, hOldPen);
2413 DeleteObject(hNewPen);
2414 }
2415
2416 /*
2417 * Display the (+/-) signs
2418 */
2419
2420 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2421 {
2422 if (item->cChildren)
2423 {
2424 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2425 if (theme)
2426 {
2427 RECT glyphRect = item->rect;
2428 glyphRect.left = item->linesOffset;
2429 glyphRect.right = item->stateOffset;
2430 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2431 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2432 &glyphRect, NULL);
2433 }
2434 else
2435 {
2436 LONG height = item->rect.bottom - item->rect.top;
2437 LONG width = item->stateOffset - item->linesOffset;
2438 LONG rectsize = min(height, width) / 4;
2439 /* plussize = ceil(rectsize * 3/4) */
2440 LONG plussize = (rectsize + 1) * 3 / 4;
2441
2442 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2443 HPEN old_pen = SelectObject(hdc, new_pen);
2444
2445 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2446 centerx + rectsize + 2, centery + rectsize + 2);
2447
2448 SelectObject(hdc, old_pen);
2449 DeleteObject(new_pen);
2450
2451 /* draw +/- signs with current text color */
2452 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2453 old_pen = SelectObject(hdc, new_pen);
2454
2455 if (height < 18 || width < 18)
2456 {
2457 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2458 LineTo(hdc, centerx + plussize, centery);
2459
2460 if (!(item->state & TVIS_EXPANDED) ||
2461 (item->state & TVIS_EXPANDPARTIAL))
2462 {
2463 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2464 LineTo(hdc, centerx, centery + plussize);
2465 }
2466 }
2467 else
2468 {
2469 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2470 centerx + plussize, centery + 2);
2471
2472 if (!(item->state & TVIS_EXPANDED) ||
2473 (item->state & TVIS_EXPANDPARTIAL))
2474 {
2475 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2476 centerx + 2, centery + plussize);
2477 SetPixel(hdc, centerx - 1, centery, clrBk);
2478 SetPixel(hdc, centerx + 1, centery, clrBk);
2479 }
2480 }
2481
2482 SelectObject(hdc, old_pen);
2483 DeleteObject(new_pen);
2484 }
2485 }
2486 }
2487 SelectObject(hdc, hbrOld);
2488 DeleteObject(hbr);
2489 }
2490
2491 static void
2492 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2493 {
2494 INT cditem;
2495 HFONT hOldFont;
2496 COLORREF oldTextColor, oldTextBkColor;
2497 int centery;
2498 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2499 NMTVCUSTOMDRAW nmcdhdr;
2500
2501 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2502
2503 /* - If item is drop target or it is selected and window is in focus -
2504 * use blue background (COLOR_HIGHLIGHT).
2505 * - If item is selected, window is not in focus, but it has style
2506 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2507 * - Otherwise - use background color
2508 */
2509 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2510 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2511 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2512 {
2513 if ((item->state & TVIS_DROPHILITED) || inFocus)
2514 {
2515 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2516 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2517 }
2518 else
2519 {
2520 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2521 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2522 }
2523 }
2524 else
2525 {
2526 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2527 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2528 nmcdhdr.clrText = comctl32_color.clrHighlight;
2529 else
2530 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2531 }
2532
2533 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2534
2535 /* The custom draw handler can query the text rectangle,
2536 * so get ready. */
2537 /* should already be known, set to 0 when changed */
2538 if (!item->textWidth)
2539 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2540
2541 cditem = 0;
2542
2543 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2544 {
2545 cditem = TREEVIEW_SendCustomDrawItemNotify
2546 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2547 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2548
2549 if (cditem & CDRF_SKIPDEFAULT)
2550 {
2551 SelectObject(hdc, hOldFont);
2552 return;
2553 }
2554 }
2555
2556 if (cditem & CDRF_NEWFONT)
2557 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2558
2559 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2560
2561 /* Set colors. Custom draw handler can change these so we do this after it. */
2562 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2563 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2564
2565 centery = (item->rect.top + item->rect.bottom) / 2;
2566
2567 /*
2568 * Display the images associated with this item
2569 */
2570 {
2571 INT imageIndex;
2572
2573 /* State images are displayed to the left of the Normal image
2574 * image number is in state; zero should be `display no image'.
2575 */
2576 imageIndex = STATEIMAGEINDEX(item->state);
2577
2578 if (infoPtr->himlState && imageIndex)
2579 {
2580 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2581 item->stateOffset,
2582 centery - infoPtr->stateImageHeight / 2,
2583 ILD_NORMAL);
2584 }
2585
2586 /* Now, draw the normal image; can be either selected,
2587 * non-selected or expanded image.
2588 */
2589
2590 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2591 {
2592 /* The item is currently selected */
2593 imageIndex = item->iSelectedImage;
2594 }
2595 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2596 {
2597 /* The item is currently not selected but expanded */
2598 imageIndex = item->iExpandedImage;
2599 }
2600 else
2601 {
2602 /* The item is not selected and not expanded */
2603 imageIndex = item->iImage;
2604 }
2605
2606 if (infoPtr->himlNormal)
2607 {
2608 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2609
2610 style |= item->state & TVIS_OVERLAYMASK;
2611
2612 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2613 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2614 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2615 style);
2616 }
2617 }
2618
2619
2620 /*
2621 * Display the text associated with this item
2622 */
2623
2624 /* Don't paint item's text if it's being edited */
2625 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2626 {
2627 if (item->pszText)
2628 {
2629 RECT rcText;
2630 UINT align;
2631 SIZE sz;
2632
2633 rcText.top = item->rect.top;
2634 rcText.bottom = item->rect.bottom;
2635 rcText.left = item->textOffset;
2636 rcText.right = rcText.left + item->textWidth + 4;
2637
2638 TRACE("drawing text %s at (%s)\n",
2639 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2640
2641 /* Draw it */
2642 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2643
2644 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2645 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2646 ETO_CLIPPED | ETO_OPAQUE,
2647 &rcText,
2648 item->pszText,
2649 lstrlenW(item->pszText),
2650 NULL);
2651 SetTextAlign(hdc, align);
2652
2653 /* Draw focus box around the selected item */
2654 if ((item == infoPtr->selectedItem) && inFocus)
2655 {
2656 DrawFocusRect(hdc,&rcText);
2657 }
2658 }
2659 }
2660
2661 /* Draw insertion mark if necessary */
2662
2663 if (infoPtr->insertMarkItem)
2664 TRACE("item:%d,mark:%p\n",
2665 TREEVIEW_GetItemIndex(infoPtr, item),
2666 infoPtr->insertMarkItem);
2667
2668 if (item == infoPtr->insertMarkItem)
2669 {
2670 HPEN hNewPen, hOldPen;
2671 int offset;
2672 int left, right;
2673
2674 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2675 hOldPen = SelectObject(hdc, hNewPen);
2676
2677 if (infoPtr->insertBeforeorAfter)
2678 offset = item->rect.bottom - 1;
2679 else
2680 offset = item->rect.top + 1;
2681
2682 left = item->textOffset - 2;
2683 right = item->textOffset + item->textWidth + 2;
2684
2685 MoveToEx(hdc, left, offset - 3, NULL);
2686 LineTo(hdc, left, offset + 4);
2687
2688 MoveToEx(hdc, left, offset, NULL);
2689 LineTo(hdc, right + 1, offset);
2690
2691 MoveToEx(hdc, right, offset + 3, NULL);
2692 LineTo(hdc, right, offset - 4);
2693
2694 SelectObject(hdc, hOldPen);
2695 DeleteObject(hNewPen);
2696 }
2697
2698 /* Restore the hdc state */
2699 SetTextColor(hdc, oldTextColor);
2700 SetBkColor(hdc, oldTextBkColor);
2701 SelectObject(hdc, hOldFont);
2702
2703 if (cditem & CDRF_NOTIFYPOSTPAINT)
2704 {
2705 cditem = TREEVIEW_SendCustomDrawItemNotify
2706 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2707 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2708 }
2709 }
2710
2711 /* Computes treeHeight and treeWidth and updates the scroll bars.
2712 */
2713 static void
2714 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2715 {
2716 TREEVIEW_ITEM *item;
2717 HWND hwnd = infoPtr->hwnd;
2718 BOOL vert = FALSE;
2719 BOOL horz = FALSE;
2720 SCROLLINFO si;
2721 LONG scrollX = infoPtr->scrollX;
2722
2723 infoPtr->treeWidth = 0;
2724 infoPtr->treeHeight = 0;
2725
2726 /* We iterate through all visible items in order to get the tree height
2727 * and width */
2728 item = infoPtr->root->firstChild;
2729
2730 while (item != NULL)
2731 {
2732 if (ISVISIBLE(item))
2733 {
2734 /* actually we draw text at textOffset + 2 */
2735 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2736 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2737
2738 /* This is scroll-adjusted, but we fix this below. */
2739 infoPtr->treeHeight = item->rect.bottom;
2740 }
2741
2742 item = TREEVIEW_GetNextListItem(infoPtr, item);
2743 }
2744
2745 /* Fix the scroll adjusted treeHeight and treeWidth. */
2746 if (infoPtr->root->firstChild)
2747 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2748
2749 infoPtr->treeWidth += infoPtr->scrollX;
2750
2751 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2752
2753 /* Adding one scroll bar may take up enough space that it forces us
2754 * to add the other as well. */
2755 if (infoPtr->treeHeight > infoPtr->clientHeight)
2756 {
2757 vert = TRUE;
2758
2759 if (infoPtr->treeWidth
2760 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2761 horz = TRUE;
2762 }
2763 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2764 horz = TRUE;
2765
2766 if (!vert && horz && infoPtr->treeHeight
2767 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2768 vert = TRUE;
2769
2770 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2771
2772 si.cbSize = sizeof(SCROLLINFO);
2773 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2774 si.nMin = 0;
2775
2776 if (vert)
2777 {
2778 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2779 if ( si.nPage && NULL != infoPtr->firstVisible)
2780 {
2781 si.nPos = infoPtr->firstVisible->visibleOrder;
2782 si.nMax = infoPtr->maxVisibleOrder - 1;
2783
2784 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2785
2786 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2787 ShowScrollBar(hwnd, SB_VERT, TRUE);
2788 infoPtr->uInternalStatus |= TV_VSCROLL;
2789 }
2790 else
2791 {
2792 if (infoPtr->uInternalStatus & TV_VSCROLL)
2793 ShowScrollBar(hwnd, SB_VERT, FALSE);
2794 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2795 }
2796 }
2797 else
2798 {
2799 if (infoPtr->uInternalStatus & TV_VSCROLL)
2800 ShowScrollBar(hwnd, SB_VERT, FALSE);
2801 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2802 }
2803
2804 if (horz)
2805 {
2806 si.nPage = infoPtr->clientWidth;
2807 si.nPos = infoPtr->scrollX;
2808 si.nMax = infoPtr->treeWidth - 1;
2809
2810 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2811 {
2812 si.nPos = si.nMax - max( si.nPage-1, 0 );
2813 scrollX = si.nPos;
2814 }
2815
2816 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2817 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2818 infoPtr->uInternalStatus |= TV_HSCROLL;
2819
2820 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2821 TREEVIEW_HScroll(infoPtr,
2822 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2823 }
2824 else
2825 {
2826 if (infoPtr->uInternalStatus & TV_HSCROLL)
2827 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2828 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2829
2830 scrollX = 0;
2831 if (infoPtr->scrollX != 0)
2832 {
2833 TREEVIEW_HScroll(infoPtr,
2834 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2835 }
2836 }
2837
2838 if (!horz)
2839 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2840 }
2841
2842 static void
2843 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2844 {
2845 HBRUSH hBrush;
2846 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2847
2848 hBrush = CreateSolidBrush(clrBk);
2849 FillRect(hdc, rc, hBrush);
2850 DeleteObject(hBrush);
2851 }
2852
2853 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2854 static LRESULT
2855 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2856 {
2857 RECT rect;
2858
2859 TRACE("%p\n", infoPtr);
2860
2861 GetClientRect(infoPtr->hwnd, &rect);
2862 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2863
2864 return 1;
2865 }
2866
2867 static void
2868 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2869 {
2870 HWND hwnd = infoPtr->hwnd;
2871 RECT rect = *rc;
2872 TREEVIEW_ITEM *item;
2873
2874 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2875 {
2876 TRACE("empty window\n");
2877 return;
2878 }
2879
2880 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2881 hdc, rect);
2882
2883 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2884 {
2885 ReleaseDC(hwnd, hdc);
2886 return;
2887 }
2888
2889 for (item = infoPtr->root->firstChild;
2890 item != NULL;
2891 item = TREEVIEW_GetNextListItem(infoPtr, item))
2892 {
2893 if (ISVISIBLE(item))
2894 {
2895 /* Avoid unneeded calculations */
2896 if (item->rect.top > rect.bottom)
2897 break;
2898 if (item->rect.bottom < rect.top)
2899 continue;
2900
2901 TREEVIEW_DrawItem(infoPtr, hdc, item);
2902 }
2903 }
2904
2905 TREEVIEW_UpdateScrollBars(infoPtr);
2906
2907 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2908 infoPtr->cdmode =
2909 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2910 }
2911
2912 static inline void
2913 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2914 {
2915 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2916 }
2917
2918 static void
2919 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2920 {
2921 if (item)
2922 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2923 else
2924 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2925 }
2926
2927 static void
2928 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2929 {
2930 RECT rc;
2931 HBITMAP hbm, hbmOld;
2932 HDC hdc, hdcScreen;
2933 int nIndex;
2934
2935 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2936
2937 hdcScreen = GetDC(0);
2938
2939 hdc = CreateCompatibleDC(hdcScreen);
2940 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2941 hbmOld = SelectObject(hdc, hbm);
2942
2943 SetRect(&rc, 0, 0, 48, 16);
2944 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2945
2946 SetRect(&rc, 18, 2, 30, 14);
2947 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2948 DFCS_BUTTONCHECK|DFCS_FLAT);
2949
2950 SetRect(&rc, 34, 2, 46, 14);
2951 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2952 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2953
2954 SelectObject(hdc, hbmOld);
2955 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2956 comctl32_color.clrWindow);
2957 TRACE("checkbox index %d\n", nIndex);
2958
2959 DeleteObject(hbm);
2960 DeleteDC(hdc);
2961 ReleaseDC(0, hdcScreen);
2962
2963 infoPtr->stateImageWidth = 16;
2964 infoPtr->stateImageHeight = 16;
2965 }
2966
2967 static void
2968 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2969 {
2970 TREEVIEW_ITEM *child = item->firstChild;
2971
2972 item->state &= ~TVIS_STATEIMAGEMASK;
2973 item->state |= INDEXTOSTATEIMAGEMASK(1);
2974
2975 while (child)
2976 {
2977 TREEVIEW_ITEM *next = child->nextSibling;
2978 TREEVIEW_ResetImageStateIndex(infoPtr, child);
2979 child = next;
2980 }
2981 }
2982
2983 static LRESULT
2984 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2985 {
2986 HDC hdc;
2987 PAINTSTRUCT ps;
2988 RECT rc;
2989
2990 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2991
2992 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
2993 {
2994 TREEVIEW_InitCheckboxes(infoPtr);
2995 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
2996
2997 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
2998 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
2999 TREEVIEW_UpdateScrollBars(infoPtr);
3000 TREEVIEW_Invalidate(infoPtr, NULL);
3001 }
3002
3003 if (hdc_ref)
3004 {
3005 hdc = hdc_ref;
3006 GetClientRect(infoPtr->hwnd, &rc);
3007 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3008 }
3009 else
3010 {
3011 hdc = BeginPaint(infoPtr->hwnd, &ps);
3012 rc = ps.rcPaint;
3013 if(ps.fErase)
3014 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3015 }
3016
3017 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3018 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3019
3020 if (!hdc_ref)
3021 EndPaint(infoPtr->hwnd, &ps);
3022
3023 return 0;
3024 }
3025
3026 static LRESULT
3027 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3028 {
3029 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3030
3031 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3032 return 0;
3033
3034 if (options & PRF_ERASEBKGND)
3035 TREEVIEW_EraseBackground(infoPtr, hdc);
3036
3037 if (options & PRF_CLIENT)
3038 {
3039 RECT rc;
3040 GetClientRect(infoPtr->hwnd, &rc);
3041 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3042 }
3043
3044 return 0;
3045 }
3046
3047 /* Sorting **************************************************************/
3048
3049 /***************************************************************************
3050 * Forward the DPA local callback to the treeview owner callback
3051 */
3052 static INT WINAPI
3053 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3054 const TVSORTCB *pCallBackSort)
3055 {
3056 /* Forward the call to the client-defined callback */
3057 return pCallBackSort->lpfnCompare(first->lParam,
3058 second->lParam,
3059 pCallBackSort->lParam);
3060 }
3061
3062 /***************************************************************************
3063 * Treeview native sort routine: sort on item text.
3064 */
3065 static INT WINAPI
3066 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3067 const TREEVIEW_INFO *infoPtr)
3068 {
3069 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3070 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3071
3072 if(first->pszText && second->pszText)
3073 return lstrcmpiW(first->pszText, second->pszText);
3074 else if(first->pszText)
3075 return -1;
3076 else if(second->pszText)
3077 return 1;
3078 else
3079 return 0;
3080 }
3081
3082 /* Returns the number of physical children belonging to item. */
3083 static INT
3084 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3085 {
3086 INT cChildren = 0;
3087 HTREEITEM hti;
3088
3089 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3090 cChildren++;
3091
3092 return cChildren;
3093 }
3094
3095 /* Returns a DPA containing a pointer to each physical child of item in
3096 * sibling order. If item has no children, an empty DPA is returned. */
3097 static HDPA
3098 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3099 {
3100 HTREEITEM child;
3101
3102 HDPA list = DPA_Create(8);
3103 if (list == 0) return NULL;
3104
3105 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3106 {
3107 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3108 {
3109 DPA_Destroy(list);
3110 return NULL;
3111 }
3112 }
3113
3114 return list;
3115 }
3116
3117 /***************************************************************************
3118 * Setup the treeview structure with regards of the sort method
3119 * and sort the children of the TV item specified in lParam
3120 * fRecurse: currently unused. Should be zero.
3121 * parent: if pSort!=NULL, should equal pSort->hParent.
3122 * otherwise, item which child items are to be sorted.
3123 * pSort: sort method info. if NULL, sort on item text.
3124 * if non-NULL, sort on item's lParam content, and let the
3125 * application decide what that means. See also TVM_SORTCHILDRENCB.
3126 */
3127
3128 static LRESULT
3129 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3130 LPTVSORTCB pSort)
3131 {
3132 INT cChildren;
3133 PFNDPACOMPARE pfnCompare;
3134 LPARAM lpCompare;
3135
3136 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3137 if (parent == TVI_ROOT || parent == NULL)
3138 parent = infoPtr->root;
3139
3140 /* Check for a valid handle to the parent item */
3141 if (!TREEVIEW_ValidItem(infoPtr, parent))
3142 {
3143 ERR("invalid item hParent=%p\n", parent);
3144 return FALSE;
3145 }
3146
3147 if (pSort)
3148 {
3149 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3150 lpCompare = (LPARAM)pSort;
3151 }
3152 else
3153 {
3154 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3155 lpCompare = (LPARAM)infoPtr;
3156 }
3157
3158 cChildren = TREEVIEW_CountChildren(parent);
3159
3160 /* Make sure there is something to sort */
3161 if (cChildren > 1)
3162 {
3163 /* TREEVIEW_ITEM rechaining */
3164 INT count = 0;
3165 HTREEITEM item = 0;
3166 HTREEITEM nextItem = 0;
3167 HTREEITEM prevItem = 0;
3168
3169 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3170
3171 if (sortList == NULL)
3172 return FALSE;
3173
3174 /* let DPA sort the list */
3175 DPA_Sort(sortList, pfnCompare, lpCompare);
3176
3177 /* The order of DPA entries has been changed, so fixup the
3178 * nextSibling and prevSibling pointers. */
3179
3180 item = DPA_GetPtr(sortList, count++);
3181 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3182 {
3183 /* link the two current item together */
3184 item->nextSibling = nextItem;
3185 nextItem->prevSibling = item;
3186
3187 if (prevItem == NULL)
3188 {
3189 /* this is the first item, update the parent */
3190 parent->firstChild = item;
3191 item->prevSibling = NULL;
3192 }
3193 else
3194 {
3195 /* fix the back chaining */
3196 item->prevSibling = prevItem;
3197 }
3198
3199 /* get ready for the next one */
3200 prevItem = item;
3201 item = nextItem;
3202 }
3203
3204 /* the last item is pointed to by item and never has a sibling */
3205 item->nextSibling = NULL;
3206 parent->lastChild = item;
3207
3208 DPA_Destroy(sortList);
3209
3210 TREEVIEW_VerifyTree(infoPtr);
3211
3212 if (parent->state & TVIS_EXPANDED)
3213 {
3214 int visOrder = infoPtr->firstVisible->visibleOrder;
3215
3216 if (parent == infoPtr->root)
3217 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3218 else
3219 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3220
3221 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3222 {
3223 TREEVIEW_ITEM *item;
3224
3225 for (item = infoPtr->root->firstChild; item != NULL;
3226 item = TREEVIEW_GetNextListItem(infoPtr, item))
3227 {
3228 if (item->visibleOrder == visOrder)
3229 break;
3230 }
3231
3232 if (!item) item = parent->firstChild;
3233 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3234 }
3235
3236 TREEVIEW_Invalidate(infoPtr, NULL);
3237 }
3238
3239 return TRUE;
3240 }
3241 return FALSE;
3242 }
3243
3244
3245 /***************************************************************************
3246 * Setup the treeview structure with regards of the sort method
3247 * and sort the children of the TV item specified in lParam
3248 */
3249 static LRESULT
3250 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3251 {
3252 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3253 }
3254
3255
3256 /***************************************************************************
3257 * Sort the children of the TV item specified in lParam.
3258 */
3259 static LRESULT
3260 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3261 {
3262 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3263 }
3264
3265
3266 /* Expansion/Collapse ***************************************************/
3267
3268 static BOOL
3269 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3270 UINT action)
3271 {
3272 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3273 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3274 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3275 0, item);
3276 }
3277
3278 static VOID
3279 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3280 UINT action)
3281 {
3282 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3283 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3284 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3285 0, item);
3286 }
3287
3288
3289 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3290 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3291 static BOOL
3292 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3293 BOOL bRemoveChildren, BOOL bUser)
3294 {
3295 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3296 BOOL bSetSelection, bSetFirstVisible;
3297 RECT scrollRect;
3298 LONG scrollDist = 0;
3299 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3300 BOOL wasExpanded;
3301
3302 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3303
3304 if (!TREEVIEW_HasChildren(infoPtr, item))
3305 return FALSE;
3306
3307 if (bUser)
3308 TREEVIEW_SendExpanding(infoPtr, item, action);
3309
3310 if (item->firstChild == NULL)
3311 return FALSE;
3312
3313 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3314 item->state &= ~TVIS_EXPANDED;
3315
3316 if (wasExpanded && bUser)
3317 TREEVIEW_SendExpanded(infoPtr, item, action);
3318
3319 bSetSelection = (infoPtr->selectedItem != NULL
3320 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3321
3322 bSetFirstVisible = (infoPtr->firstVisible != NULL
3323 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3324
3325 tmpItem = item;
3326 while (tmpItem)
3327 {
3328 if (tmpItem->nextSibling)
3329 {
3330 nextItem = tmpItem->nextSibling;
3331 break;
3332 }
3333 tmpItem = tmpItem->parent;
3334 }
3335
3336 if (nextItem)
3337 scrollDist = nextItem->rect.top;
3338
3339 if (bRemoveChildren)
3340 {
3341 INT old_cChildren = item->cChildren;
3342 TRACE("TVE_COLLAPSERESET\n");
3343 item->state &= ~TVIS_EXPANDEDONCE;
3344 TREEVIEW_RemoveAllChildren(infoPtr, item);
3345 item->cChildren = old_cChildren;
3346 }
3347 if (!wasExpanded)
3348 return FALSE;
3349
3350 if (item->firstChild)
3351 {
3352 TREEVIEW_ITEM *i, *sibling;
3353
3354 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3355
3356 for (i = item->firstChild; i != sibling;
3357 i = TREEVIEW_GetNextListItem(infoPtr, i))
3358 {
3359 i->visibleOrder = -1;
3360 }
3361 }
3362
3363 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3364
3365 if (nextItem)
3366 scrollDist = -(scrollDist - nextItem->rect.top);
3367
3368 if (bSetSelection)
3369 {
3370 /* Don't call DoSelectItem, it sends notifications. */
3371 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3372 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3373 item->state |= TVIS_SELECTED;
3374 infoPtr->selectedItem = item;
3375 }
3376
3377 TREEVIEW_UpdateScrollBars(infoPtr);
3378
3379 scrollRect.left = 0;
3380 scrollRect.right = infoPtr->clientWidth;
3381 scrollRect.bottom = infoPtr->clientHeight;
3382
3383 if (nextItem)
3384 {
3385 scrollRect.top = nextItem->rect.top;
3386
3387 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3388 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3389 TREEVIEW_Invalidate(infoPtr, item);
3390 } else {
3391 scrollRect.top = item->rect.top;
3392 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3393 }
3394
3395 TREEVIEW_SetFirstVisible(infoPtr,
3396 bSetFirstVisible ? item : infoPtr->firstVisible,
3397 TRUE);
3398
3399 return wasExpanded;
3400 }
3401
3402 static BOOL
3403 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3404 BOOL partial, BOOL user)
3405 {
3406 LONG scrollDist;
3407 LONG orgNextTop = 0;
3408 RECT scrollRect;
3409 TREEVIEW_ITEM *nextItem, *tmpItem;
3410 BOOL sendsNotifications;
3411
3412 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3413
3414 if (!TREEVIEW_HasChildren(infoPtr, item))
3415 return FALSE;
3416
3417 tmpItem = item; nextItem = NULL;
3418 while (tmpItem)
3419 {
3420 if (tmpItem->nextSibling)
3421 {
3422 nextItem = tmpItem->nextSibling;
3423 break;
3424 }
3425 tmpItem = tmpItem->parent;
3426 }
3427
3428 if (nextItem)
3429 orgNextTop = nextItem->rect.top;
3430
3431 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3432
3433 sendsNotifications = user || ((item->cChildren != 0) &&
3434 !(item->state & TVIS_EXPANDEDONCE));
3435 if (sendsNotifications)
3436 {
3437 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3438 {
3439 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3440 return FALSE;
3441 }
3442 }
3443 if (!item->firstChild)
3444 return FALSE;
3445
3446 item->state |= TVIS_EXPANDED;
3447
3448 if (partial)
3449 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3450
3451 if (ISVISIBLE(item))
3452 {
3453 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3454 TREEVIEW_UpdateSubTree(infoPtr, item);
3455 TREEVIEW_UpdateScrollBars(infoPtr);
3456
3457 scrollRect.left = 0;
3458 scrollRect.bottom = infoPtr->treeHeight;
3459 scrollRect.right = infoPtr->clientWidth;
3460 if (nextItem)
3461 {
3462 scrollDist = nextItem->rect.top - orgNextTop;
3463 scrollRect.top = orgNextTop;
3464
3465 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3466 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3467 TREEVIEW_Invalidate (infoPtr, item);
3468 } else {
3469 scrollRect.top = item->rect.top;
3470 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3471 }
3472
3473 /* Scroll up so that as many children as possible are visible.
3474 * This fails when expanding causes an HScroll bar to appear, but we
3475 * don't know that yet, so the last item is obscured. */
3476 if (item->firstChild != NULL)
3477 {
3478 int nChildren = item->lastChild->visibleOrder
3479 - item->firstChild->visibleOrder + 1;
3480
3481 int visible_pos = item->visibleOrder
3482 - infoPtr->firstVisible->visibleOrder;
3483
3484 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3485
3486 if (visible_pos > 0 && nChildren > rows_below)
3487 {
3488 int scroll = nChildren - rows_below;
3489
3490 if (scroll > visible_pos)
3491 scroll = visible_pos;
3492
3493 if (scroll > 0)
3494 {
3495 TREEVIEW_ITEM *newFirstVisible
3496 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3497 scroll);
3498
3499
3500 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3501 }
3502 }
3503 }
3504 }
3505
3506 if (sendsNotifications) {
3507 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3508 item->state |= TVIS_EXPANDEDONCE;
3509 }
3510
3511 return TRUE;
3512 }
3513
3514 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3515 to mouse messages and TVM_SELECTITEM.
3516
3517 selection - previously selected item, used to collapse a part of a tree
3518 item - new selected item
3519 */
3520 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3521 HTREEITEM selection, HTREEITEM item)
3522 {
3523 TREEVIEW_ITEM *prev, *curr;
3524
3525 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3526
3527 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3528
3529 /*
3530 * Close the previous item and its ancestors as long as they are not
3531 * ancestors of the current item
3532 */
3533 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3534 {
3535 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3536 {
3537 if (curr == prev)
3538 goto finish;
3539 }
3540 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3541 }
3542
3543 finish:
3544 /*
3545 * Expand the current item
3546 */
3547 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3548 }
3549
3550 static BOOL
3551 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3552 {
3553 TRACE("item=%p, user=%d\n", item, user);
3554
3555 if (item->state & TVIS_EXPANDED)
3556 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3557 else
3558 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3559 }
3560
3561 static VOID
3562 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3563 {
3564 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3565
3566 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3567 {
3568 if (TREEVIEW_HasChildren(infoPtr, item))
3569 TREEVIEW_ExpandAll(infoPtr, item);
3570 }
3571 }
3572
3573 /* Note:If the specified item is the child of a collapsed parent item,
3574 the parent's list of child items is (recursively) expanded to reveal the
3575 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3576 know if it also applies here.
3577 */
3578
3579 static LRESULT
3580 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3581 {
3582 if (!TREEVIEW_ValidItem(infoPtr, item))
3583 return 0;
3584
3585 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3586 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3587 flag, item->state);
3588
3589 switch (flag & TVE_TOGGLE)
3590 {
3591 case TVE_COLLAPSE:
3592 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3593 FALSE);
3594
3595 case TVE_EXPAND:
3596 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3597 FALSE);
3598
3599 case TVE_TOGGLE:
3600 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3601
3602 default:
3603 return 0;
3604 }
3605 }
3606
3607 /* Hit-Testing **********************************************************/
3608
3609 static TREEVIEW_ITEM *
3610 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3611 {
3612 TREEVIEW_ITEM *item;
3613 LONG row;
3614
3615 if (!infoPtr->firstVisible)
3616 return NULL;
3617
3618 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3619
3620 for (item = infoPtr->firstVisible; item != NULL;
3621 item = TREEVIEW_GetNextListItem(infoPtr, item))
3622 {
3623 if (row >= item->visibleOrder
3624 && row < item->visibleOrder + item->iIntegral)
3625 break;
3626 }
3627
3628 return item;
3629 }
3630
3631 static LRESULT
3632 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3633 {
3634 TREEVIEW_ITEM *item;
3635 RECT rect;
3636 UINT status;
3637 LONG x, y;
3638
3639 lpht->hItem = 0;
3640 GetClientRect(infoPtr->hwnd, &rect);
3641 status = 0;
3642 x = lpht->pt.x;
3643 y = lpht->pt.y;
3644
3645 if (x < rect.left)
3646 {
3647 status |= TVHT_TOLEFT;
3648 }
3649 else if (x > rect.right)
3650 {
3651 status |= TVHT_TORIGHT;
3652 }
3653
3654 if (y < rect.top)
3655 {
3656 status |= TVHT_ABOVE;
3657 }
3658 else if (y > rect.bottom)
3659 {
3660 status |= TVHT_BELOW;
3661 }
3662
3663 if (status)
3664 {
3665 lpht->flags = status;
3666 return 0;
3667 }
3668
3669 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3670 if (!item)
3671 {
3672 lpht->flags = TVHT_NOWHERE;
3673 return 0;
3674 }
3675
3676 if (x >= item->textOffset + item->textWidth)
3677 {
3678 lpht->flags = TVHT_ONITEMRIGHT;
3679 }
3680 else if (x >= item->textOffset)
3681 {
3682 lpht->flags = TVHT_ONITEMLABEL;
3683 }
3684 else if (x >= item->imageOffset)
3685 {
3686 lpht->flags = TVHT_ONITEMICON;
3687 }
3688 else if (x >= item->stateOffset)
3689 {
3690 lpht->flags = TVHT_ONITEMSTATEICON;
3691 }
3692 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3693 {
3694 lpht->flags = TVHT_ONITEMBUTTON;
3695 }
3696 else
3697 {
3698 lpht->flags = TVHT_ONITEMINDENT;
3699 }
3700
3701 lpht->hItem = item;
3702 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3703
3704 return (LRESULT)item;
3705 }
3706
3707 /* Item Label Editing ***************************************************/
3708
3709 static LRESULT
3710 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3711 {
3712 return (LRESULT)infoPtr->hwndEdit;
3713 }
3714
3715 static LRESULT CALLBACK
3716 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3717 {
3718 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3719 BOOL bCancel = FALSE;
3720 LRESULT rc;
3721
3722 switch (uMsg)
3723 {
3724 case WM_PAINT:
3725 TRACE("WM_PAINT start\n");
3726 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3727 lParam);
3728 TRACE("WM_PAINT done\n");
3729 return rc;
3730
3731 case WM_KILLFOCUS:
3732 if (infoPtr->bIgnoreEditKillFocus)
3733 return TRUE;
3734 break;
3735
3736 case WM_DESTROY:
3737 {
3738 WNDPROC editProc = infoPtr->wpEditOrig;
3739 infoPtr->wpEditOrig = 0;
3740 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3741 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3742 }
3743
3744 case WM_GETDLGCODE:
3745 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3746
3747 case WM_KEYDOWN:
3748 if (wParam == VK_ESCAPE)
3749 {
3750 bCancel = TRUE;
3751 break;
3752 }
3753 else if (wParam == VK_RETURN)
3754 {
3755 break;
3756 }
3757
3758 /* fall through */
3759 default:
3760 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3761 }
3762
3763 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3764 /* eg. Using a messagebox */
3765
3766 infoPtr->bIgnoreEditKillFocus = TRUE;
3767 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3768 infoPtr->bIgnoreEditKillFocus = FALSE;
3769
3770 return 0;
3771 }
3772
3773
3774 /* should handle edit control messages here */
3775
3776 static LRESULT
3777 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3778 {
3779 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3780
3781 switch (HIWORD(wParam))
3782 {
3783 case EN_UPDATE:
3784 {
3785 /*
3786 * Adjust the edit window size
3787 */
3788 WCHAR buffer[1024];
3789 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3790 HDC hdc = GetDC(infoPtr->hwndEdit);
3791 SIZE sz;
3792 HFONT hFont, hOldFont = 0;
3793
3794 TRACE("edit=%p\n", infoPtr->hwndEdit);
3795
3796 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3797
3798 infoPtr->bLabelChanged = TRUE;
3799
3800 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3801
3802 /* Select font to get the right dimension of the string */
3803 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3804
3805 if (hFont != 0)
3806 {
3807 hOldFont = SelectObject(hdc, hFont);
3808 }
3809
3810 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3811 {
3812 TEXTMETRICW textMetric;
3813
3814 /* Add Extra spacing for the next character */
3815 GetTextMetricsW(hdc, &textMetric);
3816 sz.cx += (textMetric.tmMaxCharWidth * 2);
3817
3818 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3819 sz.cx = min(sz.cx,
3820 infoPtr->clientWidth - editItem->textOffset + 2);
3821
3822 SetWindowPos(infoPtr->hwndEdit,
3823 HWND_TOP,
3824 0,
3825 0,
3826 sz.cx,
3827 editItem->rect.bottom - editItem->rect.top + 3,
3828 SWP_NOMOVE | SWP_DRAWFRAME);
3829 }
3830
3831 if (hFont != 0)
3832 {
3833 SelectObject(hdc, hOldFont);
3834 }
3835
3836 ReleaseDC(infoPtr->hwnd, hdc);
3837 break;
3838 }
3839 case EN_KILLFOCUS:
3840 /* apparently we should respect passed handle value */
3841 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3842
3843 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3844 break;
3845
3846 default:
3847 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3848 }
3849
3850 return 0;
3851 }
3852
3853 static HWND
3854 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3855 {
3856 HWND hwnd = infoPtr->hwnd;
3857 HWND hwndEdit;
3858 SIZE sz;
3859 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3860 HDC hdc;
3861 HFONT hOldFont=0;
3862 TEXTMETRICW textMetric;
3863
3864 TRACE("%p %p\n", hwnd, hItem);
3865 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3866 return NULL;
3867
3868 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3869 return NULL;
3870
3871 if (infoPtr->hwndEdit)
3872 return infoPtr->hwndEdit;
3873
3874 infoPtr->bLabelChanged = FALSE;
3875
3876 /* make edit item visible */
3877 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3878
3879 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3880
3881 hdc = GetDC(hwnd);
3882 /* Select the font to get appropriate metric dimensions */
3883 if (infoPtr->hFont != 0)
3884 {
3885 hOldFont = SelectObject(hdc, infoPtr->hFont);
3886 }
3887
3888 /* Get string length in pixels */
3889 if (hItem->pszText)
3890 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3891 &sz);
3892 else
3893 GetTextExtentPoint32A(hdc, "", 0, &sz);
3894
3895 /* Add Extra spacing for the next character */
3896 GetTextMetricsW(hdc, &textMetric);
3897 sz.cx += (textMetric.tmMaxCharWidth * 2);
3898
3899 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3900 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3901
3902 if (infoPtr->hFont != 0)
3903 {
3904 SelectObject(hdc, hOldFont);
3905 }
3906
3907 ReleaseDC(hwnd, hdc);
3908
3909 infoPtr->editItem = hItem;
3910
3911 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3912 WC_EDITW,
3913 0,
3914 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3915 WS_CLIPSIBLINGS | ES_WANTRETURN |
3916 ES_LEFT, hItem->textOffset - 2,
3917 hItem->rect.top - 1, sz.cx + 3,
3918 hItem->rect.bottom -
3919 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3920 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3921
3922 infoPtr->hwndEdit = hwndEdit;
3923
3924 /* Get a 2D border. */
3925 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3926 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3927 SetWindowLongW(hwndEdit, GWL_STYLE,
3928 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3929
3930 SendMessageW(hwndEdit, WM_SETFONT,
3931 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3932
3933 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3934 (DWORD_PTR)
3935 TREEVIEW_Edit_SubclassProc);
3936 if (hItem->pszText)
3937 SetWindowTextW(hwndEdit, hItem->pszText);
3938
3939 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3940 {
3941 DestroyWindow(hwndEdit);
3942 infoPtr->hwndEdit = 0;
3943 infoPtr->editItem = NULL;
3944 return NULL;
3945 }
3946
3947 SetFocus(hwndEdit);
3948 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3949 ShowWindow(hwndEdit, SW_SHOW);
3950
3951 return hwndEdit;
3952 }
3953
3954
3955 static LRESULT
3956 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3957 {
3958 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3959 NMTVDISPINFOW tvdi;
3960 BOOL bCommit;
3961 WCHAR tmpText[1024] = { '\0' };
3962 WCHAR *newText = tmpText;
3963 int iLength = 0;
3964
3965 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3966
3967 tvdi.item.mask = 0;
3968 tvdi.item.hItem = editedItem;
3969 tvdi.item.state = editedItem->state;
3970 tvdi.item.lParam = editedItem->lParam;
3971
3972 if (!bCancel)
3973 {
3974 if (!infoPtr->bNtfUnicode)
3975 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3976 else
3977 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3978
3979 if (iLength >= 1023)
3980 {
3981 ERR("Insufficient space to retrieve new item label\n");
3982 }
3983
3984 tvdi.item.mask = TVIF_TEXT;
3985 tvdi.item.pszText = tmpText;
3986 tvdi.item.cchTextMax = iLength + 1;
3987 }
3988 else
3989 {
3990 tvdi.item.pszText = NULL;
3991 tvdi.item.cchTextMax = 0;
3992 }
3993
3994 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
3995
3996 if (!bCancel && bCommit) /* Apply the changes */
3997 {
3998 if (!infoPtr->bNtfUnicode)
3999 {
4000 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4001 newText = Alloc(len * sizeof(WCHAR));
4002 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4003 iLength = len - 1;
4004 }
4005
4006 if (strcmpW(newText, editedItem->pszText) != 0)
4007 {
4008 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4009 if (ptr == NULL)
4010 {
4011 ERR("OutOfMemory, cannot allocate space for label\n");
4012 if(newText != tmpText) Free(newText);
4013 DestroyWindow(infoPtr->hwndEdit);
4014 infoPtr->hwndEdit = 0;
4015 infoPtr->editItem = NULL;
4016 return FALSE;
4017 }
4018 else
4019 {
4020 editedItem->pszText = ptr;
4021 editedItem->cchTextMax = iLength + 1;
4022 strcpyW(editedItem->pszText, newText);
4023 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4024 }
4025 }
4026 if(newText != tmpText) Free(newText);
4027 }
4028
4029 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4030 DestroyWindow(infoPtr->hwndEdit);
4031 infoPtr->hwndEdit = 0;
4032 infoPtr->editItem = NULL;
4033 return TRUE;
4034 }
4035
4036 static LRESULT
4037 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4038 {
4039 if (wParam != TV_EDIT_TIMER)
4040 {
4041 ERR("got unknown timer\n");
4042 return 1;
4043 }
4044
4045 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4046 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4047
4048 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4049
4050 return 0;
4051 }
4052
4053
4054 /* Mouse Tracking/Drag **************************************************/
4055
4056 /***************************************************************************
4057 * This is quite unusual piece of code, but that's how it's implemented in
4058 * Windows.
4059 */
4060 static LRESULT
4061 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4062 {
4063 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4064 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4065 RECT r;
4066 MSG msg;
4067
4068 r.top = pt.y - cyDrag;
4069 r.left = pt.x - cxDrag;
4070 r.bottom = pt.y + cyDrag;
4071 r.right = pt.x + cxDrag;
4072
4073 SetCapture(infoPtr->hwnd);
4074
4075 while (1)
4076 {
4077 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4078 {
4079 if (msg.message == WM_MOUSEMOVE)
4080 {
4081 pt.x = (short)LOWORD(msg.lParam);
4082 pt.y = (short)HIWORD(msg.lParam);
4083 if (PtInRect(&r, pt))
4084 continue;
4085 else
4086 {
4087 ReleaseCapture();
4088 return 1;
4089 }
4090 }
4091 else if (msg.message >= WM_LBUTTONDOWN &&
4092 msg.message <= WM_RBUTTONDBLCLK)
4093 {
4094 break;
4095 }
4096
4097 DispatchMessageW(&msg);
4098 }
4099
4100 if (GetCapture() != infoPtr->hwnd)
4101 return 0;
4102 }
4103
4104 ReleaseCapture();
4105 return 0;
4106 }
4107
4108
4109 static LRESULT
4110 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4111 {
4112 TREEVIEW_ITEM *item;
4113 TVHITTESTINFO hit;
4114
4115 TRACE("\n");
4116 SetFocus(infoPtr->hwnd);
4117
4118 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4119 {
4120 /* If there is pending 'edit label' event - kill it now */
4121 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4122 }
4123
4124 hit.pt.x = (short)LOWORD(lParam);
4125 hit.pt.y = (short)HIWORD(lParam);
4126
4127 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4128 if (!item)
4129 return 0;
4130 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4131
4132 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4133 { /* FIXME! */
4134 switch (hit.flags)
4135 {
4136 case TVHT_ONITEMRIGHT:
4137 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4138 break;
4139
4140 case TVHT_ONITEMINDENT:
4141 if (!(infoPtr->dwStyle & TVS_HASLINES))
4142 {
4143 break;
4144 }
4145 else
4146 {
4147 int level = hit.pt.x / infoPtr->uIndent;
4148 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4149
4150 while (item->iLevel > level)
4151 {
4152 item = item->parent;
4153 }
4154
4155 /* fall through */
4156 }
4157
4158 case TVHT_ONITEMLABEL:
4159 case TVHT_ONITEMICON:
4160 case TVHT_ONITEMBUTTON:
4161 TREEVIEW_Toggle(infoPtr, item, TRUE);
4162 break;
4163
4164 case TVHT_ONITEMSTATEICON:
4165 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4166 TREEVIEW_ToggleItemState(infoPtr, item);
4167 else
4168 TREEVIEW_Toggle(infoPtr, item, TRUE);
4169 break;
4170 }
4171 }
4172 return TRUE;
4173 }
4174
4175
4176 static LRESULT
4177 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4178 {
4179 HWND hwnd = infoPtr->hwnd;
4180 TVHITTESTINFO ht;
4181 BOOL bTrack, bDoLabelEdit;
4182
4183 /* If Edit control is active - kill it and return.
4184 * The best way to do it is to set focus to itself.
4185 * Edit control subclassed procedure will automatically call
4186 * EndEditLabelNow.
4187 */
4188 if (infoPtr->hwndEdit)
4189 {
4190 SetFocus(hwnd);
4191 return 0;
4192 }
4193
4194 ht.pt.x = (short)LOWORD(lParam);
4195 ht.pt.y = (short)HIWORD(lParam);
4196
4197 TREEVIEW_HitTest(infoPtr, &ht);
4198 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4199
4200 /* update focusedItem and redraw both items */
4201 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4202 {
4203 infoPtr->focusedItem = ht.hItem;
4204 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4205 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4206 }
4207
4208 bTrack = (ht.flags & TVHT_ONITEM)
4209 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4210
4211 /*
4212 * If the style allows editing and the node is already selected
4213 * and the click occurred on the item label...
4214 */
4215 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4216 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4217
4218 /* Send NM_CLICK right away */
4219 if (!bTrack)
4220 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4221 goto setfocus;
4222
4223 if (ht.flags & TVHT_ONITEMBUTTON)
4224 {
4225 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4226 goto setfocus;
4227 }
4228 else if (bTrack)
4229 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4230 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4231 {
4232 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4233 infoPtr->dropItem = ht.hItem;
4234
4235 /* clean up focusedItem as we dragged and won't select this item */
4236 if(infoPtr->focusedItem)
4237 {
4238 /* refresh the item that was focused */
4239 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4240 infoPtr->focusedItem = NULL;
4241
4242 /* refresh the selected item to return the filled background */
4243 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4244 }
4245
4246 return 0;
4247 }
4248 }
4249
4250 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4251 goto setfocus;
4252
4253 if (bDoLabelEdit)
4254 {
4255 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4256 KillTimer(hwnd, TV_EDIT_TIMER);
4257
4258 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4259 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4260 }
4261 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4262 {
4263 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4264
4265 /* Select the current item */
4266 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4267 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4268 }
4269 else if (ht.flags & TVHT_ONITEMSTATEICON)
4270 {
4271 /* TVS_CHECKBOXES requires us to toggle the current state */
4272 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4273 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4274 }
4275
4276 setfocus:
4277 SetFocus(hwnd);
4278 return 0;
4279 }
4280
4281
4282 static LRESULT
4283 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4284 {
4285 TVHITTESTINFO ht;
4286
4287 if (infoPtr->hwndEdit)
4288 {
4289 SetFocus(infoPtr->hwnd);
4290 return 0;
4291 }
4292
4293 ht.pt.x = (short)LOWORD(lParam);
4294 ht.pt.y = (short)HIWORD(lParam);
4295
4296 TREEVIEW_HitTest(infoPtr, &ht);
4297
4298 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4299 {
4300 if (ht.hItem)
4301 {
4302 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4303 infoPtr->dropItem = ht.hItem;
4304 }
4305 }
4306 else
4307 {
4308 SetFocus(infoPtr->hwnd);
4309 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4310 {
4311 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4312 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4313 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4314 }
4315 }
4316
4317 return 0;
4318 }
4319
4320 static LRESULT
4321 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4322 {
4323 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4324 INT cx, cy;
4325 HDC hdc, htopdc;
4326 HWND hwtop;
4327 HBITMAP hbmp, hOldbmp;
4328 SIZE size;
4329 RECT rc;
4330 HFONT hOldFont;
4331
4332 TRACE("\n");
4333
4334 if (!(infoPtr->himlNormal))
4335 return 0;
4336
4337 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4338 return 0;
4339
4340 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4341
4342 hwtop = GetDesktopWindow();
4343 htopdc = GetDC(hwtop);
4344 hdc = CreateCompatibleDC(htopdc);
4345
4346 hOldFont = SelectObject(hdc, infoPtr->hFont);
4347
4348 if (dragItem->pszText)
4349 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4350 &size);
4351 else
4352 GetTextExtentPoint32A(hdc, "", 0, &size);
4353
4354 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4355 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4356 hOldbmp = SelectObject(hdc, hbmp);
4357
4358 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4359 size.cx += cx;
4360 if (cy > size.cy)
4361 size.cy = cy;
4362
4363 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4364 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4365 ILD_NORMAL);
4366
4367 /*
4368 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4369 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4370 */
4371
4372 /* draw item text */
4373
4374 SetRect(&rc, cx, 0, size.cx, size.cy);
4375
4376 if (dragItem->pszText)
4377 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4378 DT_LEFT);
4379
4380 SelectObject(hdc, hOldFont);
4381 SelectObject(hdc, hOldbmp);
4382
4383 ImageList_Add(infoPtr->dragList, hbmp, 0);
4384
4385 DeleteDC(hdc);
4386 DeleteObject(hbmp);
4387 ReleaseDC(hwtop, htopdc);
4388
4389 return (LRESULT)infoPtr->dragList;
4390 }
4391
4392 /* Selection ************************************************************/
4393
4394 static LRESULT
4395 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4396 INT cause)
4397 {
4398 TREEVIEW_ITEM *prevSelect;
4399
4400 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4401
4402 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state %d\n",
4403 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4404 newSelect ? newSelect->state : 0);
4405
4406 /* reset and redraw focusedItem if focusedItem was set so we don't */
4407 /* have to worry about the previously focused item when we set a new one */
4408 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4409 infoPtr->focusedItem = NULL;
4410
4411 switch (action)
4412 {
4413 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4414 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4415 /* Fall through */
4416 case TVGN_CARET:
4417 prevSelect = infoPtr->selectedItem;
4418
4419 if (prevSelect == newSelect) {
4420 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4421 break;
4422 }
4423
4424 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4425 TVN_SELCHANGINGW,
4426 cause,
4427 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4428 prevSelect,
4429 newSelect))
4430 return FALSE;
4431
4432 if (prevSelect)
4433 prevSelect->state &= ~TVIS_SELECTED;
4434 if (newSelect)
4435 newSelect->state |= TVIS_SELECTED;
4436
4437 infoPtr->selectedItem = newSelect;
4438
4439 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4440
4441 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4442 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4443
4444 TREEVIEW_SendTreeviewNotify(infoPtr,
4445 TVN_SELCHANGEDW,
4446 cause,
4447 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4448 prevSelect,
4449 newSelect);
4450 break;
4451
4452 case TVGN_DROPHILITE:
4453 prevSelect = infoPtr->dropItem;
4454
4455 if (prevSelect)
4456 prevSelect->state &= ~TVIS_DROPHILITED;
4457
4458 infoPtr->dropItem = newSelect;
4459
4460 if (newSelect)
4461 newSelect->state |= TVIS_DROPHILITED;
4462
4463 TREEVIEW_Invalidate(infoPtr, prevSelect);
4464 TREEVIEW_Invalidate(infoPtr, newSelect);
4465 break;
4466
4467 case TVGN_FIRSTVISIBLE:
4468 if (newSelect != NULL)
4469 {
4470 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4471 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4472 TREEVIEW_Invalidate(infoPtr, NULL);
4473 }
4474 break;
4475 }
4476
4477 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4478 return TRUE;
4479 }
4480
4481 /* FIXME: handle NM_KILLFOCUS etc */
4482 static LRESULT
4483 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4484 {
4485 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4486
4487 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4488 return FALSE;
4489
4490 if (item == infoPtr->selectedItem)
4491 return TRUE;
4492
4493 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4494
4495 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4496 return FALSE;
4497
4498 TREEVIEW_SingleExpand(infoPtr, selection, item);
4499
4500 return TRUE;
4501 }
4502
4503 /*************************************************************************
4504 * TREEVIEW_ProcessLetterKeys
4505 *
4506 * Processes keyboard messages generated by pressing the letter keys
4507 * on the keyboard.
4508 * What this does is perform a case insensitive search from the
4509 * current position with the following quirks:
4510 * - If two chars or more are pressed in quick succession we search
4511 * for the corresponding string (e.g. 'abc').
4512 * - If there is a delay we wipe away the current search string and
4513 * restart with just that char.
4514 * - If the user keeps pressing the same character, whether slowly or
4515 * fast, so that the search string is entirely composed of this
4516 * character ('aaaaa' for instance), then we search for first item
4517 * that starting with that character.
4518 * - If the user types the above character in quick succession, then
4519 * we must also search for the corresponding string ('aaaaa'), and
4520 * go to that string if there is a match.
4521 *
4522 * RETURNS
4523 *
4524 * Zero.
4525 *
4526 * BUGS
4527 *
4528 * - The current implementation has a list of characters it will
4529 * accept and it ignores everything else. In particular it will
4530 * ignore accentuated characters which seems to match what
4531 * Windows does. But I'm not sure it makes sense to follow
4532 * Windows there.
4533 * - We don't sound a beep when the search fails.
4534 * - The search should start from the focused item, not from the selected
4535 * item. One reason for this is to allow for multiple selections in trees.
4536 * But currently infoPtr->focusedItem does not seem very usable.
4537 *
4538 * SEE ALSO
4539 *
4540 * TREEVIEW_ProcessLetterKeys
4541 */
4542 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4543 {
4544 HTREEITEM nItem;
4545 HTREEITEM endidx,idx;
4546 TVITEMEXW item;
4547 WCHAR buffer[MAX_PATH];
4548 DWORD timestamp,elapsed;
4549
4550 /* simple parameter checking */
4551 if (!charCode || !keyData) return 0;
4552
4553 /* only allow the valid WM_CHARs through */
4554 if (!isalnum(charCode) &&
4555 charCode != '.' && charCode != '`' && charCode != '!' &&
4556 charCode != '@' && charCode != '#' && charCode != '$' &&
4557 charCode != '%' && charCode != '^' && charCode != '&' &&
4558 charCode != '*' && charCode != '(' && charCode != ')' &&
4559 charCode != '-' && charCode != '_' && charCode != '+' &&
4560 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4561 charCode != '}' && charCode != '[' && charCode != '{' &&
4562 charCode != '/' && charCode != '?' && charCode != '>' &&
4563 charCode != '<' && charCode != ',' && charCode != '~')
4564 return 0;
4565
4566 /* compute how much time elapsed since last keypress */
4567 timestamp = GetTickCount();
4568 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4569 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4570 } else {
4571 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4572 }
4573
4574 /* update the search parameters */
4575 infoPtr->lastKeyPressTimestamp=timestamp;
4576 if (elapsed < KEY_DELAY) {
4577 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4578 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4579 }
4580 if (infoPtr->charCode != charCode) {
4581 infoPtr->charCode=charCode=0;
4582 }
4583 } else {
4584 infoPtr->charCode=charCode;
4585 infoPtr->szSearchParam[0]=charCode;
4586 infoPtr->nSearchParamLength=1;
4587 /* Redundant with the 1 char string */
4588 charCode=0;
4589 }
4590
4591 /* and search from the current position */
4592 nItem=NULL;
4593 if (infoPtr->selectedItem != NULL) {
4594 endidx=infoPtr->selectedItem;
4595 /* if looking for single character match,
4596 * then we must always move forward
4597 */
4598 if (infoPtr->nSearchParamLength == 1)
4599 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4600 else
4601 idx=endidx;
4602 } else {
4603 endidx=NULL;
4604 idx=infoPtr->root->firstChild;
4605 }
4606 do {
4607 /* At the end point, sort out wrapping */
4608 if (idx == NULL) {
4609
4610 /* If endidx is null, stop at the last item (ie top to bottom) */
4611 if (endidx == NULL)
4612 break;
4613
4614 /* Otherwise, start again at the very beginning */
4615 idx=infoPtr->root->firstChild;
4616
4617 /* But if we are stopping on the first child, end now! */
4618 if (idx == endidx) break;
4619 }
4620
4621 /* get item */
4622 ZeroMemory(&item, sizeof(item));
4623 item.mask = TVIF_TEXT;
4624 item.hItem = idx;
4625 item.pszText = buffer;
4626 item.cchTextMax = sizeof(buffer);
4627 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4628
4629 /* check for a match */
4630 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4631 nItem=idx;
4632 break;
4633 } else if ( (charCode != 0) && (nItem == NULL) &&
4634 (nItem != infoPtr->selectedItem) &&
4635 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4636 /* This would work but we must keep looking for a longer match */
4637 nItem=idx;
4638 }
4639 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4640 } while (idx != endidx);
4641
4642 if (nItem != NULL) {
4643 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4644 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4645 }
4646 }
4647
4648 return 0;
4649 }
4650
4651 /* Scrolling ************************************************************/
4652
4653 static LRESULT
4654 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4655 {
4656 int viscount;
4657 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4658 HTREEITEM newFirstVisible = NULL;
4659 int visible_pos = -1;
4660
4661 if (!TREEVIEW_ValidItem(infoPtr, item))
4662 return FALSE;
4663
4664 if (!ISVISIBLE(item))
4665 {
4666 /* Expand parents as necessary. */
4667 HTREEITEM parent;
4668
4669 /* see if we are trying to ensure that root is visible */
4670 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4671 parent = item->parent;
4672 else
4673 parent = item; /* this item is the topmost item */
4674
4675 while (parent != infoPtr->root)
4676 {
4677 if (!(parent->state & TVIS_EXPANDED))
4678 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4679
4680 parent = parent->parent;
4681 }
4682 }
4683
4684 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4685
4686 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4687 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4688
4689 if (hasFirstVisible)
4690 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4691
4692 if (visible_pos < 0)
4693 {
4694 /* item is before the start of the list: put it at the top. */
4695 newFirstVisible = item;
4696 }
4697 else if (visible_pos >= viscount
4698 /* Sometimes, before we are displayed, GVC is 0, causing us to
4699 * spuriously scroll up. */
4700 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4701 {
4702 /* item is past the end of the list. */
4703 int scroll = visible_pos - viscount;
4704
4705 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4706 scroll + 1);
4707 }
4708
4709 if (bHScroll)
4710 {
4711 /* Scroll window so item's text is visible as much as possible */
4712 /* Calculation of amount of extra space is taken from EditLabel code */
4713 INT pos, x;
4714 TEXTMETRICW textMetric;
4715 HDC hdc = GetWindowDC(infoPtr->hwnd);
4716
4717 x = item->textWidth;
4718
4719 GetTextMetricsW(hdc, &textMetric);
4720 ReleaseDC(infoPtr->hwnd, hdc);
4721
4722 x += (textMetric.tmMaxCharWidth * 2);
4723 x = max(x, textMetric.tmMaxCharWidth * 3);
4724
4725 if (item->textOffset < 0)
4726 pos = item->textOffset;
4727 else if (item->textOffset + x > infoPtr->clientWidth)
4728 {
4729 if (x > infoPtr->clientWidth)
4730 pos = item->textOffset;
4731 else
4732 pos = item->textOffset + x - infoPtr->clientWidth;
4733 }
4734 else
4735 pos = 0;
4736
4737 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4738 }
4739
4740 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4741 {
4742 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4743
4744 return TRUE;
4745 }
4746
4747 return FALSE;
4748 }
4749
4750 static VOID
4751 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4752 TREEVIEW_ITEM *newFirstVisible,
4753 BOOL bUpdateScrollPos)
4754 {
4755 int gap_size;
4756
4757 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4758
4759 if (newFirstVisible != NULL)
4760 {
4761 /* Prevent an empty gap from appearing at the bottom... */
4762 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4763 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4764
4765 if (gap_size > 0)
4766 {
4767 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4768 -gap_size);
4769
4770 /* ... unless we just don't have enough items. */
4771 if (newFirstVisible == NULL)
4772 newFirstVisible = infoPtr->root->firstChild;
4773 }
4774 }
4775
4776 if (infoPtr->firstVisible != newFirstVisible)
4777 {
4778 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4779 {
4780 infoPtr->firstVisible = newFirstVisible;
4781 TREEVIEW_Invalidate(infoPtr, NULL);
4782 }
4783 else
4784 {
4785 TREEVIEW_ITEM *item;
4786 int scroll = infoPtr->uItemHeight *
4787 (infoPtr->firstVisible->visibleOrder
4788 - newFirstVisible->visibleOrder);
4789
4790 infoPtr->firstVisible = newFirstVisible;
4791
4792 for (item = infoPtr->root->firstChild; item != NULL;
4793 item = TREEVIEW_GetNextListItem(infoPtr, item))
4794 {
4795 item->rect.top += scroll;
4796 item->rect.bottom += scroll;
4797 }
4798
4799 if (bUpdateScrollPos)
4800 SetScrollPos(infoPtr->hwnd, SB_VERT,
4801 newFirstVisible->visibleOrder, TRUE);
4802
4803 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4804 }
4805 }
4806 }
4807
4808 /************************************************************************
4809 * VScroll is always in units of visible items. i.e. we always have a
4810 * visible item aligned to the top of the control. (Unless we have no
4811 * items at all.)
4812 */
4813 static LRESULT
4814 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4815 {
4816 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4817 TREEVIEW_ITEM *newFirstVisible = NULL;
4818
4819 int nScrollCode = LOWORD(wParam);
4820
4821 TRACE("wp %lx\n", wParam);
4822
4823 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4824 return 0;
4825
4826 if (!oldFirstVisible)
4827 {
4828 assert(infoPtr->root->firstChild == NULL);
4829 return 0;
4830 }
4831
4832 switch (nScrollCode)
4833 {
4834 case SB_TOP:
4835 newFirstVisible = infoPtr->root->firstChild;
4836 break;
4837
4838 case SB_BOTTOM:
4839 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4840 break;
4841
4842 case SB_LINEUP:
4843 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4844 break;
4845
4846 case SB_LINEDOWN:
4847 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4848 break;
4849
4850 case SB_PAGEUP:
4851 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4852 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4853 break;
4854
4855 case SB_PAGEDOWN:
4856 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4857 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4858 break;
4859
4860 case SB_THUMBTRACK:
4861 case SB_THUMBPOSITION:
4862 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4863 infoPtr->root->firstChild,
4864 (LONG)(SHORT)HIWORD(wParam));
4865 break;
4866
4867 case SB_ENDSCROLL:
4868 return 0;
4869 }
4870
4871 if (newFirstVisible != NULL)
4872 {
4873 if (newFirstVisible != oldFirstVisible)
4874 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4875 nScrollCode != SB_THUMBTRACK);
4876 else if (nScrollCode == SB_THUMBPOSITION)
4877 SetScrollPos(infoPtr->hwnd, SB_VERT,
4878 newFirstVisible->visibleOrder, TRUE);
4879 }
4880
4881 return 0;
4882 }
4883
4884 static LRESULT
4885 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4886 {
4887 int maxWidth;
4888 int scrollX = infoPtr->scrollX;
4889 int nScrollCode = LOWORD(wParam);
4890
4891 TRACE("wp %lx\n", wParam);
4892
4893 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4894 return FALSE;
4895
4896 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4897 /* shall never occur */
4898 if (maxWidth <= 0)
4899 {
4900 scrollX = 0;
4901 goto scroll;
4902 }
4903
4904 switch (nScrollCode)
4905 {
4906 case SB_LINELEFT:
4907 scrollX -= infoPtr->uItemHeight;
4908 break;
4909 case SB_LINERIGHT:
4910 scrollX += infoPtr->uItemHeight;
4911 break;
4912 case SB_PAGELEFT:
4913 scrollX -= infoPtr->clientWidth;
4914 break;
4915 case SB_PAGERIGHT:
4916 scrollX += infoPtr->clientWidth;
4917 break;
4918
4919 case SB_THUMBTRACK:
4920 case SB_THUMBPOSITION:
4921 scrollX = (int)(SHORT)HIWORD(wParam);
4922 break;
4923
4924 case SB_ENDSCROLL:
4925 return 0;
4926 }
4927
4928 if (scrollX > maxWidth)
4929 scrollX = maxWidth;
4930 else if (scrollX < 0)
4931 scrollX = 0;
4932
4933 scroll:
4934 if (scrollX != infoPtr->scrollX)
4935 {
4936 TREEVIEW_ITEM *item;
4937 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4938
4939 for (item = infoPtr->root->firstChild; item != NULL;
4940 item = TREEVIEW_GetNextListItem(infoPtr, item))
4941 {
4942 item->linesOffset += scroll_pixels;
4943 item->stateOffset += scroll_pixels;
4944 item->imageOffset += scroll_pixels;
4945 item->textOffset += scroll_pixels;
4946 }
4947
4948 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4949 infoPtr->scrollX = scrollX;
4950 UpdateWindow(infoPtr->hwnd);
4951 }
4952
4953 if (nScrollCode != SB_THUMBTRACK)
4954 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4955
4956 return 0;
4957 }
4958
4959 static LRESULT
4960 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4961 {
4962 short wheelDelta;
4963 UINT pulScrollLines = 3;
4964
4965 if (wParam & (MK_SHIFT | MK_CONTROL))
4966 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4967
4968 if (infoPtr->firstVisible == NULL)
4969 return TRUE;
4970
4971 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4972
4973 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4974 /* if scrolling changes direction, ignore left overs */
4975 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
4976 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
4977 infoPtr->wheelRemainder += wheelDelta;
4978 else
4979 infoPtr->wheelRemainder = wheelDelta;
4980
4981 if (infoPtr->wheelRemainder && pulScrollLines)
4982 {
4983 int newDy;
4984 int maxDy;
4985 int lineScroll;
4986
4987 lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
4988 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
4989
4990 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
4991 maxDy = infoPtr->maxVisibleOrder;
4992
4993 if (newDy > maxDy)
4994 newDy = maxDy;
4995
4996 if (newDy < 0)
4997 newDy = 0;
4998
4999 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5000 }
5001 return TRUE;
5002 }
5003
5004 /* Create/Destroy *******************************************************/
5005
5006 static LRESULT
5007 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5008 {
5009 RECT rcClient;
5010 TREEVIEW_INFO *infoPtr;
5011 LOGFONTW lf;
5012
5013 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5014
5015 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5016
5017 if (infoPtr == NULL)
5018 {
5019 ERR("could not allocate info memory!\n");
5020 return 0;
5021 }
5022
5023 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5024
5025 infoPtr->hwnd = hwnd;
5026 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5027 infoPtr->Timer = 0;
5028 infoPtr->uNumItems = 0;
5029 infoPtr->cdmode = 0;
5030 infoPtr->uScrollTime = 300; /* milliseconds */
5031 infoPtr->bRedraw = TRUE;
5032
5033 GetClientRect(hwnd, &rcClient);
5034
5035 /* No scroll bars yet. */
5036 infoPtr->clientWidth = rcClient.right;
5037 infoPtr->clientHeight = rcClient.bottom;
5038 infoPtr->uInternalStatus = 0;
5039
5040 infoPtr->treeWidth = 0;
5041 infoPtr->treeHeight = 0;
5042
5043 infoPtr->uIndent = MINIMUM_INDENT;
5044 infoPtr->selectedItem = NULL;
5045 infoPtr->focusedItem = NULL;
5046 infoPtr->hotItem = NULL;
5047 infoPtr->editItem = NULL;
5048 infoPtr->firstVisible = NULL;
5049 infoPtr->maxVisibleOrder = 0;
5050 infoPtr->dropItem = NULL;
5051 infoPtr->insertMarkItem = NULL;
5052 infoPtr->insertBeforeorAfter = 0;
5053 /* dragList */
5054
5055 infoPtr->scrollX = 0;
5056 infoPtr->wheelRemainder = 0;
5057
5058 infoPtr->clrBk = CLR_NONE; /* use system color */
5059 infoPtr->clrText = CLR_NONE; /* use system color */
5060 infoPtr->clrLine = CLR_DEFAULT;
5061 infoPtr->clrInsertMark = CLR_DEFAULT;
5062
5063 /* hwndToolTip */
5064
5065 infoPtr->hwndEdit = NULL;
5066 infoPtr->wpEditOrig = NULL;
5067 infoPtr->bIgnoreEditKillFocus = FALSE;
5068 infoPtr->bLabelChanged = FALSE;
5069
5070 infoPtr->himlNormal = NULL;
5071 infoPtr->himlState = NULL;
5072 infoPtr->normalImageWidth = 0;
5073 infoPtr->normalImageHeight = 0;
5074 infoPtr->stateImageWidth = 0;
5075 infoPtr->stateImageHeight = 0;
5076
5077 infoPtr->items = DPA_Create(16);
5078
5079 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5080 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5081 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5082 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5083 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5084 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5085
5086 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5087
5088 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5089 infoPtr->root->state = TVIS_EXPANDED;
5090 infoPtr->root->iLevel = -1;
5091 infoPtr->root->visibleOrder = -1;
5092
5093 infoPtr->hwndNotify = lpcs->hwndParent;
5094 infoPtr->hwndToolTip = 0;
5095
5096 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5097 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5098
5099 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5100 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5101 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5102 hwnd, 0, 0, 0);
5103
5104 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5105 ShowScrollBar(hwnd, SB_VERT, FALSE);
5106 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5107
5108 OpenThemeData (hwnd, themeClass);
5109
5110 return 0;
5111 }
5112
5113
5114 static LRESULT
5115 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5116 {
5117 TRACE("\n");
5118
5119 /* free item data */
5120 TREEVIEW_RemoveTree(infoPtr);
5121 /* root isn't freed with other items */
5122 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5123 DPA_Destroy(infoPtr->items);
5124
5125 /* tool tip is automatically destroyed: we are its owner */
5126
5127 /* Restore original wndproc */
5128 if (infoPtr->hwndEdit)
5129 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5130 (DWORD_PTR)infoPtr->wpEditOrig);
5131
5132 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5133
5134 /* Deassociate treeview from the window before doing anything drastic. */
5135 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5136
5137 DeleteObject(infoPtr->hDefaultFont);
5138 DeleteObject(infoPtr->hBoldFont);
5139 DeleteObject(infoPtr->hUnderlineFont);
5140 DeleteObject(infoPtr->hBoldUnderlineFont);
5141 Free(infoPtr);
5142
5143 return 0;
5144 }
5145
5146 /* Miscellaneous Messages ***********************************************/
5147
5148 static LRESULT
5149 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5150 {
5151 static const struct
5152 {
5153 unsigned char code;
5154 }
5155 scroll[] =
5156 {
5157 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5158 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5159 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5160 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5161 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5162 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5163 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5164 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5165 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5166 #undef SCROLL_ENTRY
5167 };
5168
5169 if (key >= VK_PRIOR && key <= VK_DOWN)
5170 {
5171 unsigned char code = scroll[key - VK_PRIOR].code;
5172
5173 (((code & (1 << 7)) == (SB_HORZ << 7))
5174 ? TREEVIEW_HScroll
5175 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5176 }
5177
5178 return 0;
5179 }
5180
5181 /************************************************************************
5182 * TREEVIEW_KeyDown
5183 *
5184 * VK_UP Move selection to the previous non-hidden item.
5185 * VK_DOWN Move selection to the next non-hidden item.
5186 * VK_HOME Move selection to the first item.
5187 * VK_END Move selection to the last item.
5188 * VK_LEFT If expanded then collapse, otherwise move to parent.
5189 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5190 * VK_ADD Expand.
5191 * VK_SUBTRACT Collapse.
5192 * VK_MULTIPLY Expand all.
5193 * VK_PRIOR Move up GetVisibleCount items.
5194 * VK_NEXT Move down GetVisibleCount items.
5195 * VK_BACK Move to parent.
5196 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5197 */
5198 static LRESULT
5199 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5200 {
5201 /* If it is non-NULL and different, it will be selected and visible. */
5202 TREEVIEW_ITEM *newSelection = NULL;
5203 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5204 NMTVKEYDOWN nmkeydown;
5205
5206 TRACE("%lx\n", wParam);
5207
5208 nmkeydown.wVKey = wParam;
5209 nmkeydown.flags = 0;
5210 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5211
5212 if (prevItem == NULL)
5213 return FALSE;
5214
5215 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5216 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5217
5218 switch (wParam)
5219 {
5220 case VK_UP:
5221 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5222 if (!newSelection)
5223 newSelection = infoPtr->root->firstChild;
5224 break;
5225
5226 case VK_DOWN:
5227 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5228 break;
5229
5230 case VK_RETURN:
5231 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5232 break;
5233
5234 case VK_HOME:
5235 newSelection = infoPtr->root->firstChild;
5236 break;
5237
5238 case VK_END:
5239 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5240 break;
5241
5242 case VK_LEFT:
5243 if (prevItem->state & TVIS_EXPANDED)
5244 {
5245 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5246 }
5247 else if (prevItem->parent != infoPtr->root)
5248 {
5249 newSelection = prevItem->parent;
5250 }
5251 break;
5252
5253 case VK_RIGHT:
5254 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5255 {
5256 if (!(prevItem->state & TVIS_EXPANDED))
5257 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5258 else
5259 {
5260 newSelection = prevItem->firstChild;
5261 }
5262 }
5263
5264 break;
5265
5266 case VK_MULTIPLY:
5267 TREEVIEW_ExpandAll(infoPtr, prevItem);
5268 break;
5269
5270 case VK_ADD:
5271 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5272 break;
5273
5274 case VK_SUBTRACT:
5275 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5276 break;
5277
5278 case VK_PRIOR:
5279 newSelection
5280 = TREEVIEW_GetListItem(infoPtr, prevItem,
5281 -TREEVIEW_GetVisibleCount(infoPtr));
5282 break;
5283
5284 case VK_NEXT:
5285 newSelection
5286 = TREEVIEW_GetListItem(infoPtr, prevItem,
5287 TREEVIEW_GetVisibleCount(infoPtr));
5288 break;
5289
5290 case VK_BACK:
5291 newSelection = prevItem->parent;
5292 if (newSelection == infoPtr->root)
5293 newSelection = NULL;
5294 break;
5295
5296 case VK_SPACE:
5297 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5298 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5299 break;
5300 }
5301
5302 if (newSelection && newSelection != prevItem)
5303 {
5304 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5305 TVC_BYKEYBOARD))
5306 {
5307 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5308 }
5309 }
5310
5311 return FALSE;
5312 }
5313
5314 static LRESULT
5315 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5316 {
5317 /* remove hot effect from item */
5318 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5319 infoPtr->hotItem = NULL;
5320
5321 return 0;
5322 }
5323
5324 static LRESULT
5325 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5326 {
5327 POINT pt;
5328 TRACKMOUSEEVENT trackinfo;
5329 TREEVIEW_ITEM * item;
5330
5331 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5332
5333 /* fill in the TRACKMOUSEEVENT struct */
5334 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5335 trackinfo.dwFlags = TME_QUERY;
5336 trackinfo.hwndTrack = infoPtr->hwnd;
5337
5338 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5339 _TrackMouseEvent(&trackinfo);
5340
5341 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5342 if(!(trackinfo.dwFlags & TME_LEAVE))
5343 {
5344 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5345 trackinfo.hwndTrack = infoPtr->hwnd;
5346 /* do it as fast as possible, minimal systimer latency will be used */
5347 trackinfo.dwHoverTime = 1;
5348
5349 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5350 /* and can properly deactivate the hot item */
5351 _TrackMouseEvent(&trackinfo);
5352 }
5353
5354 pt.x = (short)LOWORD(lParam);
5355 pt.y = (short)HIWORD(lParam);
5356
5357 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5358
5359 if (item != infoPtr->hotItem)
5360 {
5361 /* redraw old hot item */
5362 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5363 infoPtr->hotItem = item;
5364 /* redraw new hot item */
5365 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5366 }
5367
5368 return 0;
5369 }
5370
5371 /* Draw themed border */
5372 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5373 {
5374 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5375 HDC dc;
5376 RECT r;
5377 HRGN cliprgn;
5378 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5379 cyEdge = GetSystemMetrics (SM_CYEDGE);
5380
5381 if (!theme)
5382 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5383
5384 GetWindowRect(infoPtr->hwnd, &r);
5385
5386 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5387 r.right - cxEdge, r.bottom - cyEdge);
5388 if (region != (HRGN)1)
5389 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5390 OffsetRect(&r, -r.left, -r.top);
5391
5392 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5393 OffsetRect(&r, -r.left, -r.top);
5394
5395 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5396 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5397 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5398 ReleaseDC(infoPtr->hwnd, dc);
5399
5400 /* Call default proc to get the scrollbars etc. painted */
5401 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5402
5403 return TRUE;
5404 }
5405
5406 static LRESULT
5407 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5408 {
5409 LPNMHDR lpnmh = (LPNMHDR)lParam;
5410
5411 if (lpnmh->code == PGN_CALCSIZE) {
5412 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5413
5414 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5415 lppgc->iWidth = infoPtr->treeWidth;
5416 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5417 infoPtr->treeWidth, infoPtr->clientWidth);
5418 }
5419 else {
5420 lppgc->iHeight = infoPtr->treeHeight;
5421 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5422 infoPtr->treeHeight, infoPtr->clientHeight);
5423 }
5424 return 0;
5425 }
5426 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5427 }
5428
5429 static LRESULT
5430 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5431 {
5432 if (wParam == SIZE_RESTORED)
5433 {
5434 infoPtr->clientWidth = (short)LOWORD(lParam);
5435 infoPtr->clientHeight = (short)HIWORD(lParam);
5436
5437 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5438 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5439 TREEVIEW_UpdateScrollBars(infoPtr);
5440 }
5441 else
5442 {
5443 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5444 }
5445
5446 TREEVIEW_Invalidate(infoPtr, NULL);
5447 return 0;
5448 }
5449
5450 static LRESULT
5451 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5452 {
5453 TRACE("(%lx %lx)\n", wParam, lParam);
5454
5455 if (wParam == GWL_STYLE)
5456 {
5457 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5458
5459 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5460 {
5461 if (dwNewStyle & TVS_CHECKBOXES)
5462 {
5463 TREEVIEW_InitCheckboxes(infoPtr);
5464 TRACE("checkboxes enabled\n");
5465
5466 /* set all items to state image index 1 */
5467 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5468 }
5469 else
5470 {
5471 FIXME("tried to disable checkboxes\n");
5472 }
5473 }
5474
5475 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5476 {
5477 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5478 {
5479 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5480 TRACE("tooltips enabled\n");
5481 }
5482 else
5483 {
5484 DestroyWindow(infoPtr->hwndToolTip);
5485 infoPtr->hwndToolTip = 0;
5486 TRACE("tooltips disabled\n");
5487 }
5488 }
5489
5490 infoPtr->dwStyle = dwNewStyle;
5491 }
5492
5493 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5494 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5495 TREEVIEW_UpdateScrollBars(infoPtr);
5496 TREEVIEW_Invalidate(infoPtr, NULL);
5497
5498 return 0;
5499 }
5500
5501 static LRESULT
5502 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5503 {
5504 POINT pt;
5505 TREEVIEW_ITEM * item;
5506 NMMOUSE nmmouse;
5507
5508 GetCursorPos(&pt);
5509 ScreenToClient(infoPtr->hwnd, &pt);
5510
5511 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5512
5513 memset(&nmmouse, 0, sizeof(nmmouse));
5514 if (item)
5515 {
5516 nmmouse.dwItemSpec = (DWORD_PTR)item;
5517 nmmouse.dwItemData = item->lParam;
5518 }
5519 nmmouse.pt.x = 0;
5520 nmmouse.pt.y = 0;
5521 nmmouse.dwHitInfo = lParam;
5522 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5523 return 0;
5524
5525 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5526 {
5527 SetCursor(infoPtr->hcurHand);
5528 return 0;
5529 }
5530 else
5531 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5532 }
5533
5534 static LRESULT
5535 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5536 {
5537 TRACE("\n");
5538
5539 if (!infoPtr->selectedItem)
5540 {
5541 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5542 TVC_UNKNOWN);
5543 }
5544
5545 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5546 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5547 return 0;
5548 }
5549
5550 static LRESULT
5551 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5552 {
5553 TRACE("\n");
5554
5555 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5556 UpdateWindow(infoPtr->hwnd);
5557 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5558 return 0;
5559 }
5560
5561 /* update theme after a WM_THEMECHANGED message */
5562 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5563 {
5564 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5565 CloseThemeData (theme);
5566 OpenThemeData (infoPtr->hwnd, themeClass);
5567 return 0;
5568 }
5569
5570
5571 static LRESULT WINAPI
5572 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5573 {
5574 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5575
5576 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5577
5578 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5579 else
5580 {
5581 if (uMsg == WM_CREATE)
5582 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5583 else
5584 goto def;
5585 }
5586
5587 switch (uMsg)
5588 {
5589 case TVM_CREATEDRAGIMAGE:
5590 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5591
5592 case TVM_DELETEITEM:
5593 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5594
5595 case TVM_EDITLABELA:
5596 case TVM_EDITLABELW:
5597 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5598
5599 case TVM_ENDEDITLABELNOW:
5600 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5601
5602 case TVM_ENSUREVISIBLE:
5603 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5604
5605 case TVM_EXPAND:
5606 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5607
5608 case TVM_GETBKCOLOR:
5609 return TREEVIEW_GetBkColor(infoPtr);
5610
5611 case TVM_GETCOUNT:
5612 return TREEVIEW_GetCount(infoPtr);
5613
5614 case TVM_GETEDITCONTROL:
5615 return TREEVIEW_GetEditControl(infoPtr);
5616
5617 case TVM_GETIMAGELIST:
5618 return TREEVIEW_GetImageList(infoPtr, wParam);
5619
5620 case TVM_GETINDENT:
5621 return TREEVIEW_GetIndent(infoPtr);
5622
5623 case TVM_GETINSERTMARKCOLOR:
5624 return TREEVIEW_GetInsertMarkColor(infoPtr);
5625
5626 case TVM_GETISEARCHSTRINGA:
5627 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5628 return 0;
5629
5630 case TVM_GETISEARCHSTRINGW:
5631 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5632 return 0;
5633
5634 case TVM_GETITEMA:
5635 case TVM_GETITEMW:
5636 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5637 uMsg == TVM_GETITEMW);
5638 case TVM_GETITEMHEIGHT:
5639 return TREEVIEW_GetItemHeight(infoPtr);
5640
5641 case TVM_GETITEMRECT:
5642 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5643
5644 case TVM_GETITEMSTATE:
5645 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5646
5647 case TVM_GETLINECOLOR:
5648 return TREEVIEW_GetLineColor(infoPtr);
5649
5650 case TVM_GETNEXTITEM:
5651 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5652
5653 case TVM_GETSCROLLTIME:
5654 return TREEVIEW_GetScrollTime(infoPtr);
5655
5656 case TVM_GETTEXTCOLOR:
5657 return TREEVIEW_GetTextColor(infoPtr);
5658
5659 case TVM_GETTOOLTIPS:
5660 return TREEVIEW_GetToolTips(infoPtr);
5661
5662 case TVM_GETUNICODEFORMAT:
5663 return TREEVIEW_GetUnicodeFormat(infoPtr);
5664
5665 case TVM_GETVISIBLECOUNT:
5666 return TREEVIEW_GetVisibleCount(infoPtr);
5667
5668 case TVM_HITTEST:
5669 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5670
5671 case TVM_INSERTITEMA:
5672 case TVM_INSERTITEMW:
5673 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5674 uMsg == TVM_INSERTITEMW);
5675 case TVM_SELECTITEM:
5676 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5677
5678 case TVM_SETBKCOLOR:
5679 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5680
5681 case TVM_SETIMAGELIST:
5682 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5683
5684 case TVM_SETINDENT:
5685 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5686
5687 case TVM_SETINSERTMARK:
5688 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5689
5690 case TVM_SETINSERTMARKCOLOR:
5691 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5692
5693 case TVM_SETITEMA:
5694 case TVM_SETITEMW:
5695 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5696 uMsg == TVM_SETITEMW);
5697 case TVM_SETLINECOLOR:
5698 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5699
5700 case TVM_SETITEMHEIGHT:
5701 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5702
5703 case TVM_SETSCROLLTIME:
5704 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5705
5706 case TVM_SETTEXTCOLOR:
5707 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5708
5709 case TVM_SETTOOLTIPS:
5710 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5711
5712 case TVM_SETUNICODEFORMAT:
5713 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5714
5715 case TVM_SORTCHILDREN:
5716 return TREEVIEW_SortChildren(infoPtr, lParam);
5717
5718 case TVM_SORTCHILDRENCB:
5719 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5720
5721 case WM_CHAR:
5722 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5723
5724 case WM_COMMAND:
5725 return TREEVIEW_Command(infoPtr, wParam, lParam);
5726
5727 case WM_DESTROY:
5728 return TREEVIEW_Destroy(infoPtr);
5729
5730 /* WM_ENABLE */
5731
5732 case WM_ERASEBKGND:
5733 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5734
5735 case WM_GETDLGCODE:
5736 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5737
5738 case WM_GETFONT:
5739 return TREEVIEW_GetFont(infoPtr);
5740
5741 case WM_HSCROLL:
5742 return TREEVIEW_HScroll(infoPtr, wParam);
5743
5744 case WM_KEYDOWN:
5745 return TREEVIEW_KeyDown(infoPtr, wParam);
5746
5747 case WM_KILLFOCUS:
5748 return TREEVIEW_KillFocus(infoPtr);
5749
5750 case WM_LBUTTONDBLCLK:
5751 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5752
5753 case WM_LBUTTONDOWN:
5754 return TREEVIEW_LButtonDown(infoPtr, lParam);
5755
5756 /* WM_MBUTTONDOWN */
5757
5758 case WM_MOUSELEAVE:
5759 return TREEVIEW_MouseLeave(infoPtr);
5760
5761 case WM_MOUSEMOVE:
5762 return TREEVIEW_MouseMove(infoPtr, lParam);
5763
5764 case WM_NCLBUTTONDOWN:
5765 if (infoPtr->hwndEdit)
5766 SetFocus(infoPtr->hwnd);
5767 goto def;
5768
5769 case WM_NCPAINT:
5770 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5771
5772 case WM_NOTIFY:
5773 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5774
5775 case WM_NOTIFYFORMAT:
5776 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5777
5778 case WM_PRINTCLIENT:
5779 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5780
5781 case WM_PAINT:
5782 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5783
5784 case WM_RBUTTONDOWN:
5785 return TREEVIEW_RButtonDown(infoPtr, lParam);
5786
5787 case WM_SETCURSOR:
5788 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5789
5790 case WM_SETFOCUS:
5791 return TREEVIEW_SetFocus(infoPtr);
5792
5793 case WM_SETFONT:
5794 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5795
5796 case WM_SETREDRAW:
5797 return TREEVIEW_SetRedraw(infoPtr, wParam);
5798
5799 case WM_SIZE:
5800 return TREEVIEW_Size(infoPtr, wParam, lParam);
5801
5802 case WM_STYLECHANGED:
5803 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5804
5805 case WM_SYSCOLORCHANGE:
5806 COMCTL32_RefreshSysColors();
5807 return 0;
5808
5809 /* WM_SYSKEYDOWN */
5810
5811 case WM_TIMER:
5812 return TREEVIEW_HandleTimer(infoPtr, wParam);
5813
5814 case WM_THEMECHANGED:
5815 return TREEVIEW_ThemeChanged (infoPtr);
5816
5817 case WM_VSCROLL:
5818 return TREEVIEW_VScroll(infoPtr, wParam);
5819
5820 /* WM_WININICHANGE */
5821
5822 case WM_MOUSEWHEEL:
5823 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5824
5825 case WM_DRAWITEM:
5826 TRACE("drawItem\n");
5827 goto def;
5828
5829 default:
5830 /* This mostly catches MFC and Delphi messages. :( */
5831 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5832 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5833 def:
5834 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5835 }
5836 }
5837
5838
5839 /* Class Registration ***************************************************/
5840
5841 VOID
5842 TREEVIEW_Register(void)
5843 {
5844 WNDCLASSW wndClass;
5845
5846 TRACE("\n");
5847
5848 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5849 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5850 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5851 wndClass.cbClsExtra = 0;
5852 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5853
5854 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5855 wndClass.hbrBackground = 0;
5856 wndClass.lpszClassName = WC_TREEVIEWW;
5857
5858 RegisterClassW(&wndClass);
5859 }
5860
5861
5862 VOID
5863 TREEVIEW_Unregister(void)
5864 {
5865 UnregisterClassW(WC_TREEVIEWW, NULL);
5866 }
5867
5868
5869 /* Tree Verification ****************************************************/
5870
5871 static inline void
5872 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5873
5874 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5875 const TREEVIEW_ITEM *item)
5876 {
5877 assert(infoPtr != NULL);
5878 assert(item != NULL);
5879
5880 /* both NULL, or both non-null */
5881 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5882
5883 assert(item->firstChild != item);
5884 assert(item->lastChild != item);
5885
5886 if (item->firstChild)
5887 {
5888 assert(item->firstChild->parent == item);
5889 assert(item->firstChild->prevSibling == NULL);
5890 }
5891
5892 if (item->lastChild)
5893 {
5894 assert(item->lastChild->parent == item);
5895 assert(item->lastChild->nextSibling == NULL);
5896 }
5897
5898 assert(item->nextSibling != item);
5899 if (item->nextSibling)
5900 {
5901 assert(item->nextSibling->parent == item->parent);
5902 assert(item->nextSibling->prevSibling == item);
5903 }
5904
5905 assert(item->prevSibling != item);
5906 if (item->prevSibling)
5907 {
5908 assert(item->prevSibling->parent == item->parent);
5909 assert(item->prevSibling->nextSibling == item);
5910 }
5911 }
5912
5913 static inline void
5914 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5915 {
5916 assert(item != NULL);
5917
5918 assert(item->parent != NULL);
5919 assert(item->parent != item);
5920 assert(item->iLevel == item->parent->iLevel + 1);
5921
5922 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5923
5924 TREEVIEW_VerifyItemCommon(infoPtr, item);
5925
5926 TREEVIEW_VerifyChildren(infoPtr, item);
5927 }
5928
5929 static inline void
5930 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5931 {
5932 const TREEVIEW_ITEM *child;
5933 assert(item != NULL);
5934
5935 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5936 TREEVIEW_VerifyItem(infoPtr, child);
5937 }
5938
5939 static inline void
5940 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5941 {
5942 TREEVIEW_ITEM *root = infoPtr->root;
5943
5944 assert(root != NULL);
5945 assert(root->iLevel == -1);
5946 assert(root->parent == NULL);
5947 assert(root->prevSibling == NULL);
5948
5949 TREEVIEW_VerifyItemCommon(infoPtr, root);
5950
5951 TREEVIEW_VerifyChildren(infoPtr, root);
5952 }
5953
5954 static void
5955 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5956 {
5957 if (!TRACE_ON(treeview)) return;
5958
5959 assert(infoPtr != NULL);
5960 TREEVIEW_VerifyRoot(infoPtr);
5961 }
Windows API implementation