?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
reg: Do not allow combinations of /v, /ve or /va in the 'delete' function.
[wine.git] / dlls / comctl32 / treeview.c
blob5938b29ebcfd952d7686e53f8e42e244e211aff7
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54
55 #include "windef.h"
56 #include "winbase.h"
57 #include "wingdi.h"
58 #include "winuser.h"
59 #include "winnls.h"
60 #include "commctrl.h"
61 #include "comctl32.h"
62 #include "uxtheme.h"
63 #include "vssym32.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66 #include "wine/exception.h"
67
68 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
69
70 /* internal structures */
71 typedef struct tagTREEVIEW_INFO
72 {
73 HWND hwnd;
74 HWND hwndNotify; /* Owner window to send notifications to */
75 DWORD dwStyle;
76 HTREEITEM root;
77 UINT uInternalStatus;
78 INT Timer;
79 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
80 INT cdmode; /* last custom draw setting */
81 UINT uScrollTime; /* max. time for scrolling in milliseconds */
82 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
83
84 UINT uItemHeight; /* item height */
85 BOOL bHeightSet;
86
87 LONG clientWidth; /* width of control window */
88 LONG clientHeight; /* height of control window */
89
90 LONG treeWidth; /* width of visible tree items */
91 LONG treeHeight; /* height of visible tree items */
92
93 UINT uIndent; /* indentation in pixels */
94 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
95 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
96 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
97 HTREEITEM editItem; /* item being edited with builtin edit box */
98
99 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
100 LONG maxVisibleOrder;
101 HTREEITEM dropItem; /* handle to item selected by drag cursor */
102 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
103 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
104 HIMAGELIST dragList; /* Bitmap of dragged item */
105 LONG scrollX;
106 INT wheelRemainder;
107 COLORREF clrBk;
108 COLORREF clrText;
109 COLORREF clrLine;
110 COLORREF clrInsertMark;
111 HFONT hFont;
112 HFONT hDefaultFont;
113 HFONT hBoldFont;
114 HFONT hUnderlineFont;
115 HFONT hBoldUnderlineFont;
116 HCURSOR hcurHand;
117 HWND hwndToolTip;
118
119 HWND hwndEdit;
120 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
121 BOOL bIgnoreEditKillFocus;
122 BOOL bLabelChanged;
123
124 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
125 HIMAGELIST himlNormal;
126 int normalImageHeight;
127 int normalImageWidth;
128 HIMAGELIST himlState;
129 int stateImageHeight;
130 int stateImageWidth;
131 HDPA items;
132
133 DWORD lastKeyPressTimestamp;
134 WPARAM charCode;
135 INT nSearchParamLength;
136 WCHAR szSearchParam[ MAX_PATH ];
137 } TREEVIEW_INFO;
138
139 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
140 {
141 HTREEITEM parent; /* handle to parent or 0 if at root */
142 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
143 HTREEITEM firstChild; /* handle to first child or 0 if no child */
144
145 UINT callbackMask;
146 UINT state;
147 UINT stateMask;
148 LPWSTR pszText;
149 int cchTextMax;
150 int iImage;
151 int iSelectedImage;
152 int iExpandedImage;
153 int cChildren;
154 LPARAM lParam;
155 int iIntegral; /* item height multiplier (1 is normal) */
156 int iLevel; /* indentation level:0=root level */
157 HTREEITEM lastChild;
158 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
159 RECT rect;
160 LONG linesOffset;
161 LONG stateOffset;
162 LONG imageOffset;
163 LONG textOffset;
164 LONG textWidth; /* horizontal text extent for pszText */
165 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
166 corresponding to a top-to-bottom ordering in the tree view.
167 Each item takes up "item.iIntegral" spots in the visible order.
168 0 is the root's first child. */
169 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
170 } TREEVIEW_ITEM;
171
172 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
173 #define KEY_DELAY 450
174
175 /* bitflags for infoPtr->uInternalStatus */
176
177 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
178 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
179 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
180 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
181 #define TV_RDRAG 0x10 /* ditto Rbutton */
182 #define TV_RDRAGGING 0x20
183
184 /* bitflags for infoPtr->timer */
185
186 #define TV_EDIT_TIMER 2
187 #define TV_EDIT_TIMER_SET 2
188
189 #define TEXT_CALLBACK_SIZE 260
190
191 #define TREEVIEW_LEFT_MARGIN 8
192
193 #define MINIMUM_INDENT 19
194
195 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
196
197 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
198 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
199 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
200
201 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
202 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
203 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
204 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
205
206 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
207
208
209 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
210
211
212 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
213
214 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
215 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
216 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
217 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
218 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
219 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
220
221 /* Random Utilities *****************************************************/
222 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
223
224 /* Returns the treeview private data if hwnd is a treeview.
225 * Otherwise returns an undefined value. */
226 static inline TREEVIEW_INFO *
227 TREEVIEW_GetInfoPtr(HWND hwnd)
228 {
229 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
230 }
231
232 /* Don't call this. Nothing wants an item index. */
233 static inline int
234 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
235 {
236 return DPA_GetPtrIndex(infoPtr->items, handle);
237 }
238
239 /* Checks if item has changed and needs to be redrawn */
240 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
241 const TVITEMEXW *tvChange)
242 {
243 /* Number of children has changed */
244 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
245 return TRUE;
246
247 /* Image has changed and it's not a callback */
248 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
249 tiNew->iImage != I_IMAGECALLBACK)
250 return TRUE;
251
252 /* Selected image has changed and it's not a callback */
253 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
254 tiNew->iSelectedImage != I_IMAGECALLBACK)
255 return TRUE;
256
257 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
258 tiNew->iExpandedImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Text has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
263 tiNew->pszText != LPSTR_TEXTCALLBACKW)
264 return TRUE;
265
266 /* Indent has changed */
267 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
268 return TRUE;
269
270 /* Item state has changed */
271 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
272 return TRUE;
273
274 return FALSE;
275 }
276
277 /***************************************************************************
278 * This method checks that handle is an item for this tree.
279 */
280 static BOOL
281 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
282 {
283 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
284 {
285 TRACE("invalid item %p\n", handle);
286 return FALSE;
287 }
288 else
289 return TRUE;
290 }
291
292 static HFONT
293 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
294 {
295 LOGFONTW font;
296
297 GetObjectW(hOrigFont, sizeof(font), &font);
298 font.lfWeight = FW_BOLD;
299 return CreateFontIndirectW(&font);
300 }
301
302 static HFONT
303 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
304 {
305 LOGFONTW font;
306
307 GetObjectW(hOrigFont, sizeof(font), &font);
308 font.lfUnderline = TRUE;
309 return CreateFontIndirectW(&font);
310 }
311
312 static HFONT
313 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
314 {
315 LOGFONTW font;
316
317 GetObjectW(hfont, sizeof(font), &font);
318 font.lfWeight = FW_BOLD;
319 font.lfUnderline = TRUE;
320 return CreateFontIndirectW(&font);
321 }
322
323 static inline HFONT
324 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
325 {
326 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
327 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
328 if (item->state & TVIS_BOLD)
329 return infoPtr->hBoldFont;
330 return infoPtr->hFont;
331 }
332
333 /* for trace/debugging purposes only */
334 static const char *
335 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
336 {
337 if (item == NULL) return "<null item>";
338 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
339 if (item->pszText == NULL) return "<null>";
340 return debugstr_w(item->pszText);
341 }
342
343 /* An item is not a child of itself. */
344 static BOOL
345 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
346 {
347 do
348 {
349 child = child->parent;
350 if (child == parent) return TRUE;
351 } while (child != NULL);
352
353 return FALSE;
354 }
355
356
357 /* Tree Traversal *******************************************************/
358
359 /***************************************************************************
360 * This method returns the last expanded sibling or child child item
361 * of a tree node
362 */
363 static TREEVIEW_ITEM *
364 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
365 {
366 if (!item) return NULL;
367
368 while (item->lastChild)
369 {
370 if (item->state & TVIS_EXPANDED)
371 item = item->lastChild;
372 else
373 break;
374 }
375
376 if (item == infoPtr->root)
377 return NULL;
378
379 return item;
380 }
381
382 /***************************************************************************
383 * This method returns the previous non-hidden item in the list not
384 * considering the tree hierarchy.
385 */
386 static TREEVIEW_ITEM *
387 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
388 {
389 if (tvItem->prevSibling)
390 {
391 /* This item has a prevSibling, get the last item in the sibling's tree. */
392 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
393
394 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
395 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
396 else
397 return upItem;
398 }
399 else
400 {
401 /* this item does not have a prevSibling, get the parent */
402 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
403 }
404 }
405
406
407 /***************************************************************************
408 * This method returns the next physical item in the treeview not
409 * considering the tree hierarchy.
410 */
411 static TREEVIEW_ITEM *
412 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
413 {
414 /*
415 * If this item has children and is expanded, return the first child
416 */
417 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
418 {
419 return tvItem->firstChild;
420 }
421
422
423 /*
424 * try to get the sibling
425 */
426 if (tvItem->nextSibling)
427 return tvItem->nextSibling;
428
429 /*
430 * Otherwise, get the parent's sibling.
431 */
432 while (tvItem->parent)
433 {
434 tvItem = tvItem->parent;
435
436 if (tvItem->nextSibling)
437 return tvItem->nextSibling;
438 }
439
440 return NULL;
441 }
442
443 /***************************************************************************
444 * This method returns the nth item starting at the given item. It returns
445 * the last item (or first) we we run out of items.
446 *
447 * Will scroll backward if count is <0.
448 * forward if count is >0.
449 */
450 static TREEVIEW_ITEM *
451 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
452 LONG count)
453 {
454 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
455 TREEVIEW_ITEM *previousItem;
456
457 assert(item != NULL);
458
459 if (count > 0)
460 {
461 next_item = TREEVIEW_GetNextListItem;
462 }
463 else if (count < 0)
464 {
465 count = -count;
466 next_item = TREEVIEW_GetPrevListItem;
467 }
468 else
469 return item;
470
471 do
472 {
473 previousItem = item;
474 item = next_item(infoPtr, item);
475
476 } while (--count && item != NULL);
477
478
479 return item ? item : previousItem;
480 }
481
482 /* Notifications ************************************************************/
483
484 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
485 {
486 if (!infoPtr->bNtfUnicode) {
487 switch (code) {
488 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
489 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
490 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
491 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
492 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
493 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
494 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
495 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
496 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
497 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
498 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
499 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
500 }
501 }
502 return code;
503 }
504
505 static inline BOOL
506 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
507 {
508 TRACE("code=%d, hdr=%p\n", code, hdr);
509
510 hdr->hwndFrom = infoPtr->hwnd;
511 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
512 hdr->code = get_notifycode(infoPtr, code);
513
514 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
515 }
516
517 static BOOL
518 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
519 {
520 NMHDR hdr;
521 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 NMTREEVIEWW nmhdr;
562 BOOL ret;
563
564 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
565 code, action, oldItem, newItem);
566
567 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
568 nmhdr.action = action;
569
570 if (oldItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
572
573 if (newItem)
574 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
575
576 nmhdr.ptDrag.x = 0;
577 nmhdr.ptDrag.y = 0;
578
579 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
580 if (!infoPtr->bNtfUnicode)
581 {
582 Free(nmhdr.itemOld.pszText);
583 Free(nmhdr.itemNew.pszText);
584 }
585 return ret;
586 }
587
588 static BOOL
589 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
590 HTREEITEM dragItem, POINT pt)
591 {
592 NMTREEVIEWW nmhdr;
593
594 TRACE("code:%d dragitem:%p\n", code, dragItem);
595
596 nmhdr.action = 0;
597 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
598 nmhdr.itemNew.hItem = dragItem;
599 nmhdr.itemNew.state = dragItem->state;
600 nmhdr.itemNew.lParam = dragItem->lParam;
601
602 nmhdr.ptDrag.x = pt.x;
603 nmhdr.ptDrag.y = pt.y;
604
605 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
606 }
607
608
609 static BOOL
610 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
611 HDC hdc, RECT rc)
612 {
613 NMTVCUSTOMDRAW nmcdhdr;
614 NMCUSTOMDRAW *nmcd;
615
616 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
617
618 nmcd = &nmcdhdr.nmcd;
619 nmcd->dwDrawStage = dwDrawStage;
620 nmcd->hdc = hdc;
621 nmcd->rc = rc;
622 nmcd->dwItemSpec = 0;
623 nmcd->uItemState = 0;
624 nmcd->lItemlParam = 0;
625 nmcdhdr.clrText = infoPtr->clrText;
626 nmcdhdr.clrTextBk = infoPtr->clrBk;
627 nmcdhdr.iLevel = 0;
628
629 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
630 }
631
632 /* FIXME: need to find out when the flags in uItemState need to be set */
633
634 static BOOL
635 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
636 TREEVIEW_ITEM *item, UINT uItemDrawState,
637 NMTVCUSTOMDRAW *nmcdhdr)
638 {
639 NMCUSTOMDRAW *nmcd;
640 DWORD dwDrawStage;
641 DWORD_PTR dwItemSpec;
642 UINT uItemState;
643
644 dwDrawStage = CDDS_ITEM | uItemDrawState;
645 dwItemSpec = (DWORD_PTR)item;
646 uItemState = 0;
647 if (item->state & TVIS_SELECTED)
648 uItemState |= CDIS_SELECTED;
649 if (item == infoPtr->selectedItem)
650 uItemState |= CDIS_FOCUS;
651 if (item == infoPtr->hotItem)
652 uItemState |= CDIS_HOT;
653
654 nmcd = &nmcdhdr->nmcd;
655 nmcd->dwDrawStage = dwDrawStage;
656 nmcd->hdc = hdc;
657 nmcd->rc = item->rect;
658 nmcd->dwItemSpec = dwItemSpec;
659 nmcd->uItemState = uItemState;
660 nmcd->lItemlParam = item->lParam;
661 nmcdhdr->iLevel = item->iLevel;
662
663 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
664 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
665 nmcd->uItemState, nmcd->lItemlParam);
666
667 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
668 }
669
670 static BOOL
671 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
672 {
673 NMTVDISPINFOW tvdi;
674 BOOL ret;
675
676 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
677 &tvdi.item, editItem);
678
679 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
680
681 if (!infoPtr->bNtfUnicode)
682 Free(tvdi.item.pszText);
683
684 return ret;
685 }
686
687 static void
688 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
689 UINT mask)
690 {
691 NMTVDISPINFOEXW callback;
692
693 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
694 mask &= item->callbackMask;
695
696 if (mask == 0) return;
697
698 /* 'state' always contains valid value, as well as 'lParam'.
699 * All other parameters are uninitialized.
700 */
701 callback.item.pszText = item->pszText;
702 callback.item.cchTextMax = item->cchTextMax;
703 callback.item.mask = mask;
704 callback.item.hItem = item;
705 callback.item.state = item->state;
706 callback.item.lParam = item->lParam;
707
708 /* If text is changed we need to recalculate textWidth */
709 if (mask & TVIF_TEXT)
710 item->textWidth = 0;
711
712 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
713 TRACE("resulting code 0x%08x\n", callback.hdr.code);
714
715 /* It may have changed due to a call to SetItem. */
716 mask &= item->callbackMask;
717
718 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
719 {
720 /* Instead of copying text into our buffer user specified his own */
721 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
722 LPWSTR newText;
723 int buflen;
724 int len = MultiByteToWideChar( CP_ACP, 0,
725 (LPSTR)callback.item.pszText, -1,
726 NULL, 0);
727 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
728 newText = ReAlloc(item->pszText, buflen);
729
730 TRACE("returned str %s, len=%d, buflen=%d\n",
731 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
732
733 if (newText)
734 {
735 item->pszText = newText;
736 MultiByteToWideChar( CP_ACP, 0,
737 (LPSTR)callback.item.pszText, -1,
738 item->pszText, buflen/sizeof(WCHAR));
739 item->cchTextMax = buflen/sizeof(WCHAR);
740 }
741 /* If ReAlloc fails we have nothing to do, but keep original text */
742 }
743 else {
744 int len = max(lstrlenW(callback.item.pszText) + 1,
745 TEXT_CALLBACK_SIZE);
746 LPWSTR newText = ReAlloc(item->pszText, len);
747
748 TRACE("returned wstr %s, len=%d\n",
749 debugstr_w(callback.item.pszText), len);
750
751 if (newText)
752 {
753 item->pszText = newText;
754 strcpyW(item->pszText, callback.item.pszText);
755 item->cchTextMax = len;
756 }
757 /* If ReAlloc fails we have nothing to do, but keep original text */
758 }
759 }
760 else if (mask & TVIF_TEXT) {
761 /* User put text into our buffer, that is ok unless A string */
762 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
763 LPWSTR newText;
764 int buflen;
765 int len = MultiByteToWideChar( CP_ACP, 0,
766 (LPSTR)callback.item.pszText, -1,
767 NULL, 0);
768 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
769 newText = Alloc(buflen);
770
771 TRACE("same buffer str %s, len=%d, buflen=%d\n",
772 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
773
774 if (newText)
775 {
776 LPWSTR oldText = item->pszText;
777 item->pszText = newText;
778 MultiByteToWideChar( CP_ACP, 0,
779 (LPSTR)callback.item.pszText, -1,
780 item->pszText, buflen/sizeof(WCHAR));
781 item->cchTextMax = buflen/sizeof(WCHAR);
782 Free(oldText);
783 }
784 }
785 }
786
787 if (mask & TVIF_IMAGE)
788 item->iImage = callback.item.iImage;
789
790 if (mask & TVIF_SELECTEDIMAGE)
791 item->iSelectedImage = callback.item.iSelectedImage;
792
793 if (mask & TVIF_EXPANDEDIMAGE)
794 item->iExpandedImage = callback.item.iExpandedImage;
795
796 if (mask & TVIF_CHILDREN)
797 item->cChildren = callback.item.cChildren;
798
799 if (callback.item.mask & TVIF_STATE)
800 {
801 item->state &= ~callback.item.stateMask;
802 item->state |= (callback.item.state & callback.item.stateMask);
803 }
804
805 /* These members are now permanently set. */
806 if (callback.item.mask & TVIF_DI_SETITEM)
807 item->callbackMask &= ~callback.item.mask;
808 }
809
810 /***************************************************************************
811 * This function uses cChildren field to decide whether the item has
812 * children or not.
813 * Note: if this returns TRUE, the child items may not actually exist,
814 * they could be virtual.
815 *
816 * Just use item->firstChild to check for physical children.
817 */
818 static BOOL
819 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
820 {
821 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
822 /* Protect for a case when callback field is not changed by a host,
823 otherwise negative values trigger normal notifications. */
824 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
825 }
826
827 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
828 {
829 INT format;
830
831 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
832
833 if (nCommand != NF_REQUERY) return 0;
834
835 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
836 TRACE("format=%d\n", format);
837
838 /* Invalid format returned by NF_QUERY defaults to ANSI*/
839 if (format != NFR_ANSI && format != NFR_UNICODE)
840 format = NFR_ANSI;
841
842 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
843
844 return format;
845 }
846
847 /* Item Position ********************************************************/
848
849 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
850 static VOID
851 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
852 {
853 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
854 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
855 > TVS_LINESATROOT);
856
857 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
858 - infoPtr->scrollX;
859 item->stateOffset = item->linesOffset + infoPtr->uIndent;
860 item->imageOffset = item->stateOffset
861 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
862 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
863 }
864
865 static VOID
866 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
867 {
868 HDC hdc;
869 HFONT hOldFont=0;
870 SIZE sz;
871
872 /* DRAW's OM docker creates items like this */
873 if (item->pszText == NULL)
874 {
875 item->textWidth = 0;
876 return;
877 }
878
879 if (hDC != 0)
880 {
881 hdc = hDC;
882 }
883 else
884 {
885 hdc = GetDC(infoPtr->hwnd);
886 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
887 }
888
889 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
890 item->textWidth = sz.cx;
891
892 if (hDC == 0)
893 {
894 SelectObject(hdc, hOldFont);
895 ReleaseDC(0, hdc);
896 }
897 }
898
899 static VOID
900 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
901 {
902 item->rect.top = infoPtr->uItemHeight *
903 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
904
905 item->rect.bottom = item->rect.top
906 + infoPtr->uItemHeight * item->iIntegral - 1;
907
908 item->rect.left = 0;
909 item->rect.right = infoPtr->clientWidth;
910 }
911
912 /* We know that only items after start need their order updated. */
913 static void
914 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
915 {
916 TREEVIEW_ITEM *item;
917 int order;
918
919 if (!start)
920 {
921 start = infoPtr->root->firstChild;
922 order = 0;
923 }
924 else
925 order = start->visibleOrder;
926
927 for (item = start; item != NULL;
928 item = TREEVIEW_GetNextListItem(infoPtr, item))
929 {
930 if (!ISVISIBLE(item) && order > 0)
931 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
932 item->visibleOrder = order;
933 order += item->iIntegral;
934 }
935
936 infoPtr->maxVisibleOrder = order;
937
938 for (item = start; item != NULL;
939 item = TREEVIEW_GetNextListItem(infoPtr, item))
940 {
941 TREEVIEW_ComputeItemRect(infoPtr, item);
942 }
943 }
944
945
946 /* Update metrics of all items in selected subtree.
947 * root must be expanded
948 */
949 static VOID
950 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
951 {
952 TREEVIEW_ITEM *sibling;
953 HDC hdc;
954 HFONT hOldFont;
955
956 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
957 return;
958
959 root->state &= ~TVIS_EXPANDED;
960 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
961 root->state |= TVIS_EXPANDED;
962
963 hdc = GetDC(infoPtr->hwnd);
964 hOldFont = SelectObject(hdc, infoPtr->hFont);
965
966 for (; root != sibling;
967 root = TREEVIEW_GetNextListItem(infoPtr, root))
968 {
969 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
970
971 if (root->callbackMask & TVIF_TEXT)
972 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
973
974 if (root->textWidth == 0)
975 {
976 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
977 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
978 }
979 }
980
981 SelectObject(hdc, hOldFont);
982 ReleaseDC(infoPtr->hwnd, hdc);
983 }
984
985 /* Item Allocation **********************************************************/
986
987 static TREEVIEW_ITEM *
988 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
989 {
990 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
991
992 if (!newItem)
993 return NULL;
994
995 /* I_IMAGENONE would make more sense but this is neither what is
996 * documented (MSDN doesn't specify) nor what Windows actually does
997 * (it sets it to zero)... and I can so imagine an application using
998 * inc/dec to toggle the images. */
999 newItem->iImage = 0;
1000 newItem->iSelectedImage = 0;
1001 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1002 newItem->infoPtr = infoPtr;
1003
1004 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1005 {
1006 Free(newItem);
1007 return NULL;
1008 }
1009
1010 return newItem;
1011 }
1012
1013 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1014 * free item->pszText. */
1015 static void
1016 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1017 {
1018 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1019 if (infoPtr->selectedItem == item)
1020 infoPtr->selectedItem = NULL;
1021 if (infoPtr->hotItem == item)
1022 infoPtr->hotItem = NULL;
1023 if (infoPtr->focusedItem == item)
1024 infoPtr->focusedItem = NULL;
1025 if (infoPtr->firstVisible == item)
1026 infoPtr->firstVisible = NULL;
1027 if (infoPtr->dropItem == item)
1028 infoPtr->dropItem = NULL;
1029 if (infoPtr->insertMarkItem == item)
1030 infoPtr->insertMarkItem = NULL;
1031 Free(item);
1032 }
1033
1034
1035 /* Item Insertion *******************************************************/
1036
1037 /***************************************************************************
1038 * This method inserts newItem before sibling as a child of parent.
1039 * sibling can be NULL, but only if parent has no children.
1040 */
1041 static void
1042 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1043 TREEVIEW_ITEM *parent)
1044 {
1045 assert(parent != NULL);
1046
1047 if (sibling != NULL)
1048 {
1049 assert(sibling->parent == parent);
1050
1051 if (sibling->prevSibling != NULL)
1052 sibling->prevSibling->nextSibling = newItem;
1053
1054 newItem->prevSibling = sibling->prevSibling;
1055 sibling->prevSibling = newItem;
1056 }
1057 else
1058 newItem->prevSibling = NULL;
1059
1060 newItem->nextSibling = sibling;
1061
1062 if (parent->firstChild == sibling)
1063 parent->firstChild = newItem;
1064
1065 if (parent->lastChild == NULL)
1066 parent->lastChild = newItem;
1067 }
1068
1069 /***************************************************************************
1070 * This method inserts newItem after sibling as a child of parent.
1071 * sibling can be NULL, but only if parent has no children.
1072 */
1073 static void
1074 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1075 TREEVIEW_ITEM *parent)
1076 {
1077 assert(parent != NULL);
1078
1079 if (sibling != NULL)
1080 {
1081 assert(sibling->parent == parent);
1082
1083 if (sibling->nextSibling != NULL)
1084 sibling->nextSibling->prevSibling = newItem;
1085
1086 newItem->nextSibling = sibling->nextSibling;
1087 sibling->nextSibling = newItem;
1088 }
1089 else
1090 newItem->nextSibling = NULL;
1091
1092 newItem->prevSibling = sibling;
1093
1094 if (parent->lastChild == sibling)
1095 parent->lastChild = newItem;
1096
1097 if (parent->firstChild == NULL)
1098 parent->firstChild = newItem;
1099 }
1100
1101 static BOOL
1102 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1103 const TVITEMEXW *tvItem, BOOL isW)
1104 {
1105 UINT callbackClear = 0;
1106 UINT callbackSet = 0;
1107
1108 TRACE("item %p\n", item);
1109 /* Do this first in case it fails. */
1110 if (tvItem->mask & TVIF_TEXT)
1111 {
1112 item->textWidth = 0; /* force width recalculation */
1113 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1114 {
1115 int len;
1116 LPWSTR newText;
1117 if (isW)
1118 len = lstrlenW(tvItem->pszText) + 1;
1119 else
1120 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1121
1122 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1123
1124 if (newText == NULL) return FALSE;
1125
1126 callbackClear |= TVIF_TEXT;
1127
1128 item->pszText = newText;
1129 item->cchTextMax = len;
1130 if (isW)
1131 lstrcpynW(item->pszText, tvItem->pszText, len);
1132 else
1133 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1134 item->pszText, len);
1135
1136 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1137 }
1138 else
1139 {
1140 callbackSet |= TVIF_TEXT;
1141
1142 item->pszText = ReAlloc(item->pszText,
1143 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1144 item->cchTextMax = TEXT_CALLBACK_SIZE;
1145 TRACE("setting callback, item %p\n", item);
1146 }
1147 }
1148
1149 if (tvItem->mask & TVIF_CHILDREN)
1150 {
1151 item->cChildren = tvItem->cChildren;
1152
1153 if (item->cChildren == I_CHILDRENCALLBACK)
1154 callbackSet |= TVIF_CHILDREN;
1155 else
1156 callbackClear |= TVIF_CHILDREN;
1157 }
1158
1159 if (tvItem->mask & TVIF_IMAGE)
1160 {
1161 item->iImage = tvItem->iImage;
1162
1163 if (item->iImage == I_IMAGECALLBACK)
1164 callbackSet |= TVIF_IMAGE;
1165 else
1166 callbackClear |= TVIF_IMAGE;
1167 }
1168
1169 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1170 {
1171 item->iSelectedImage = tvItem->iSelectedImage;
1172
1173 if (item->iSelectedImage == I_IMAGECALLBACK)
1174 callbackSet |= TVIF_SELECTEDIMAGE;
1175 else
1176 callbackClear |= TVIF_SELECTEDIMAGE;
1177 }
1178
1179 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1180 {
1181 item->iExpandedImage = tvItem->iExpandedImage;
1182
1183 if (item->iExpandedImage == I_IMAGECALLBACK)
1184 callbackSet |= TVIF_EXPANDEDIMAGE;
1185 else
1186 callbackClear |= TVIF_EXPANDEDIMAGE;
1187 }
1188
1189 if (tvItem->mask & TVIF_PARAM)
1190 item->lParam = tvItem->lParam;
1191
1192 /* If the application sets TVIF_INTEGRAL without
1193 * supplying a TVITEMEX structure, it's toast. */
1194 if (tvItem->mask & TVIF_INTEGRAL)
1195 item->iIntegral = tvItem->iIntegral;
1196
1197 if (tvItem->mask & TVIF_STATE)
1198 {
1199 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1200 tvItem->stateMask);
1201 item->state &= ~tvItem->stateMask;
1202 item->state |= (tvItem->state & tvItem->stateMask);
1203 }
1204
1205 if (tvItem->mask & TVIF_STATEEX)
1206 {
1207 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1208 }
1209
1210 item->callbackMask |= callbackSet;
1211 item->callbackMask &= ~callbackClear;
1212
1213 return TRUE;
1214 }
1215
1216 /* Note that the new item is pre-zeroed. */
1217 static LRESULT
1218 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1219 {
1220 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1221 HTREEITEM insertAfter;
1222 TREEVIEW_ITEM *newItem, *parentItem;
1223 BOOL bTextUpdated = FALSE;
1224
1225 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1226 {
1227 parentItem = infoPtr->root;
1228 }
1229 else
1230 {
1231 parentItem = ptdi->hParent;
1232
1233 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1234 {
1235 WARN("invalid parent %p\n", parentItem);
1236 return 0;
1237 }
1238 }
1239
1240 insertAfter = ptdi->hInsertAfter;
1241
1242 /* Validate this now for convenience. */
1243 switch ((DWORD_PTR)insertAfter)
1244 {
1245 case (DWORD_PTR)TVI_FIRST:
1246 case (DWORD_PTR)TVI_LAST:
1247 case (DWORD_PTR)TVI_SORT:
1248 break;
1249
1250 default:
1251 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1252 insertAfter->parent != parentItem)
1253 {
1254 WARN("invalid insert after %p\n", insertAfter);
1255 insertAfter = TVI_LAST;
1256 }
1257 }
1258
1259 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1260 (tvItem->mask & TVIF_TEXT)
1261 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1262 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1263 : "<no label>");
1264
1265 newItem = TREEVIEW_AllocateItem(infoPtr);
1266 if (newItem == NULL)
1267 return 0;
1268
1269 newItem->parent = parentItem;
1270 newItem->iIntegral = 1;
1271 newItem->visibleOrder = -1;
1272
1273 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1274 return 0;
1275
1276 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1277
1278 infoPtr->uNumItems++;
1279
1280 switch ((DWORD_PTR)insertAfter)
1281 {
1282 case (DWORD_PTR)TVI_FIRST:
1283 {
1284 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1285 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1286 if (infoPtr->firstVisible == originalFirst)
1287 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1288 }
1289 break;
1290
1291 case (DWORD_PTR)TVI_LAST:
1292 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1293 break;
1294
1295 /* hInsertAfter names a specific item we want to insert after */
1296 default:
1297 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1298 break;
1299
1300 case (DWORD_PTR)TVI_SORT:
1301 {
1302 TREEVIEW_ITEM *aChild;
1303 TREEVIEW_ITEM *previousChild = NULL;
1304 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1305 BOOL bItemInserted = FALSE;
1306
1307 aChild = parentItem->firstChild;
1308
1309 bTextUpdated = TRUE;
1310 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1311
1312 /* Iterate the parent children to see where we fit in */
1313 while (aChild != NULL)
1314 {
1315 INT comp;
1316
1317 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1318 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1319
1320 if (comp < 0) /* we are smaller than the current one */
1321 {
1322 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1323 if (infoPtr->firstVisible == originalFirst &&
1324 aChild == originalFirst)
1325 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1326 bItemInserted = TRUE;
1327 break;
1328 }
1329 else if (comp > 0) /* we are bigger than the current one */
1330 {
1331 previousChild = aChild;
1332
1333 /* This will help us to exit if there is no more sibling */
1334 aChild = (aChild->nextSibling == 0)
1335 ? NULL
1336 : aChild->nextSibling;
1337
1338 /* Look at the next item */
1339 continue;
1340 }
1341 else if (comp == 0)
1342 {
1343 /*
1344 * An item with this name is already existing, therefore,
1345 * we add after the one we found
1346 */
1347 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1348 bItemInserted = TRUE;
1349 break;
1350 }
1351 }
1352
1353 /*
1354 * we reach the end of the child list and the item has not
1355 * yet been inserted, therefore, insert it after the last child.
1356 */
1357 if ((!bItemInserted) && (aChild == NULL))
1358 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1359
1360 break;
1361 }
1362 }
1363
1364
1365 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1366 newItem->parent, tvItem->mask);
1367
1368 newItem->iLevel = newItem->parent->iLevel + 1;
1369
1370 if (newItem->parent->cChildren == 0)
1371 newItem->parent->cChildren = 1;
1372
1373 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1374 {
1375 if (STATEIMAGEINDEX(newItem->state) == 0)
1376 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1377 }
1378
1379 if (infoPtr->firstVisible == NULL)
1380 infoPtr->firstVisible = newItem;
1381
1382 TREEVIEW_VerifyTree(infoPtr);
1383
1384 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1385
1386 if (parentItem == infoPtr->root ||
1387 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1388 {
1389 TREEVIEW_ITEM *item;
1390 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1391
1392 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1393 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1394
1395 if (!bTextUpdated)
1396 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1397
1398 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1399 TREEVIEW_UpdateScrollBars(infoPtr);
1400 /*
1401 * if the item was inserted in a visible part of the tree,
1402 * invalidate it, as well as those after it
1403 */
1404 for (item = newItem;
1405 item != NULL;
1406 item = TREEVIEW_GetNextListItem(infoPtr, item))
1407 TREEVIEW_Invalidate(infoPtr, item);
1408 }
1409 else
1410 {
1411 /* refresh treeview if newItem is the first item inserted under parentItem */
1412 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1413 {
1414 /* parent got '+' - update it */
1415 TREEVIEW_Invalidate(infoPtr, parentItem);
1416 }
1417 }
1418
1419 return (LRESULT)newItem;
1420 }
1421
1422 /* Item Deletion ************************************************************/
1423 static void
1424 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1425
1426 static void
1427 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1428 {
1429 TREEVIEW_ITEM *kill = parentItem->firstChild;
1430
1431 while (kill != NULL)
1432 {
1433 TREEVIEW_ITEM *next = kill->nextSibling;
1434
1435 TREEVIEW_RemoveItem(infoPtr, kill);
1436
1437 kill = next;
1438 }
1439
1440 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1441 assert(parentItem->firstChild == NULL);
1442 assert(parentItem->lastChild == NULL);
1443 }
1444
1445 static void
1446 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1447 {
1448 TREEVIEW_ITEM *parentItem;
1449
1450 assert(item != NULL);
1451 assert(item->parent != NULL); /* i.e. it must not be the root */
1452
1453 parentItem = item->parent;
1454
1455 if (parentItem->firstChild == item)
1456 parentItem->firstChild = item->nextSibling;
1457
1458 if (parentItem->lastChild == item)
1459 parentItem->lastChild = item->prevSibling;
1460
1461 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1462 && parentItem->cChildren > 0)
1463 parentItem->cChildren = 0;
1464
1465 if (item->prevSibling)
1466 item->prevSibling->nextSibling = item->nextSibling;
1467
1468 if (item->nextSibling)
1469 item->nextSibling->prevSibling = item->prevSibling;
1470 }
1471
1472 static void
1473 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1474 {
1475 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1476
1477 if (item->firstChild)
1478 TREEVIEW_RemoveAllChildren(infoPtr, item);
1479
1480 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1481 TVIF_HANDLE | TVIF_PARAM, item, 0);
1482
1483 TREEVIEW_UnlinkItem(item);
1484
1485 infoPtr->uNumItems--;
1486
1487 if (item->pszText != LPSTR_TEXTCALLBACKW)
1488 Free(item->pszText);
1489
1490 TREEVIEW_FreeItem(infoPtr, item);
1491 }
1492
1493
1494 /* Empty out the tree. */
1495 static void
1496 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1497 {
1498 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1499
1500 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1501 }
1502
1503 static LRESULT
1504 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1505 {
1506 TREEVIEW_ITEM *newSelection = NULL;
1507 TREEVIEW_ITEM *newFirstVisible = NULL;
1508 TREEVIEW_ITEM *parent, *prev = NULL;
1509 BOOL visible = FALSE;
1510
1511 if (item == TVI_ROOT || !item)
1512 {
1513 TRACE("TVI_ROOT\n");
1514 parent = infoPtr->root;
1515 newSelection = NULL;
1516 visible = TRUE;
1517 TREEVIEW_RemoveTree(infoPtr);
1518 }
1519 else
1520 {
1521 if (!TREEVIEW_ValidItem(infoPtr, item))
1522 return FALSE;
1523
1524 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1525 parent = item->parent;
1526
1527 if (ISVISIBLE(item))
1528 {
1529 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1530 visible = TRUE;
1531 }
1532
1533 if (infoPtr->selectedItem != NULL
1534 && (item == infoPtr->selectedItem
1535 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1536 {
1537 if (item->nextSibling)
1538 newSelection = item->nextSibling;
1539 else if (item->parent != infoPtr->root)
1540 newSelection = item->parent;
1541 else
1542 newSelection = item->prevSibling;
1543 TRACE("newSelection = %p\n", newSelection);
1544 }
1545
1546 if (infoPtr->firstVisible == item)
1547 {
1548 if (item->nextSibling)
1549 newFirstVisible = item->nextSibling;
1550 else if (item->prevSibling)
1551 newFirstVisible = item->prevSibling;
1552 else if (item->parent != infoPtr->root)
1553 newFirstVisible = item->parent;
1554 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1555 }
1556 else
1557 newFirstVisible = infoPtr->firstVisible;
1558
1559 TREEVIEW_RemoveItem(infoPtr, item);
1560 }
1561
1562 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1563 if (!infoPtr->selectedItem && newSelection)
1564 {
1565 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1566 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1567 }
1568
1569 /* Validate insertMark dropItem.
1570 * hotItem ??? - used for comparison only.
1571 */
1572 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1573 infoPtr->insertMarkItem = 0;
1574
1575 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1576 infoPtr->dropItem = 0;
1577
1578 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1579 newFirstVisible = infoPtr->root->firstChild;
1580
1581 TREEVIEW_VerifyTree(infoPtr);
1582
1583 if (visible)
1584 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1585
1586 if (!infoPtr->bRedraw) return TRUE;
1587
1588 if (visible)
1589 {
1590 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1591 TREEVIEW_UpdateScrollBars(infoPtr);
1592 TREEVIEW_Invalidate(infoPtr, NULL);
1593 }
1594 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1595 {
1596 /* parent lost '+/-' - update it */
1597 TREEVIEW_Invalidate(infoPtr, parent);
1598 }
1599
1600 return TRUE;
1601 }
1602
1603
1604 /* Get/Set Messages *********************************************************/
1605 static LRESULT
1606 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1607 {
1608 infoPtr->bRedraw = wParam != 0;
1609
1610 if (infoPtr->bRedraw)
1611 {
1612 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1613 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1614 TREEVIEW_UpdateScrollBars(infoPtr);
1615 TREEVIEW_Invalidate(infoPtr, NULL);
1616 }
1617 return 0;
1618 }
1619
1620 static LRESULT
1621 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1622 {
1623 TRACE("\n");
1624 return infoPtr->uIndent;
1625 }
1626
1627 static LRESULT
1628 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1629 {
1630 TRACE("\n");
1631
1632 if (newIndent < MINIMUM_INDENT)
1633 newIndent = MINIMUM_INDENT;
1634
1635 if (infoPtr->uIndent != newIndent)
1636 {
1637 infoPtr->uIndent = newIndent;
1638 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1639 TREEVIEW_UpdateScrollBars(infoPtr);
1640 TREEVIEW_Invalidate(infoPtr, NULL);
1641 }
1642
1643 return 0;
1644 }
1645
1646
1647 static LRESULT
1648 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1649 {
1650 TRACE("\n");
1651 return (LRESULT)infoPtr->hwndToolTip;
1652 }
1653
1654 static LRESULT
1655 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1656 {
1657 HWND prevToolTip;
1658
1659 TRACE("\n");
1660 prevToolTip = infoPtr->hwndToolTip;
1661 infoPtr->hwndToolTip = hwndTT;
1662
1663 return (LRESULT)prevToolTip;
1664 }
1665
1666 static LRESULT
1667 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1668 {
1669 BOOL rc = infoPtr->bNtfUnicode;
1670 infoPtr->bNtfUnicode = fUnicode;
1671 return rc;
1672 }
1673
1674 static LRESULT
1675 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1676 {
1677 return infoPtr->bNtfUnicode;
1678 }
1679
1680 static LRESULT
1681 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1682 {
1683 return infoPtr->uScrollTime;
1684 }
1685
1686 static LRESULT
1687 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1688 {
1689 UINT uOldScrollTime = infoPtr->uScrollTime;
1690
1691 infoPtr->uScrollTime = min(uScrollTime, 100);
1692
1693 return uOldScrollTime;
1694 }
1695
1696
1697 static LRESULT
1698 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1699 {
1700 TRACE("\n");
1701
1702 switch (wParam)
1703 {
1704 case TVSIL_NORMAL:
1705 return (LRESULT)infoPtr->himlNormal;
1706
1707 case TVSIL_STATE:
1708 return (LRESULT)infoPtr->himlState;
1709
1710 default:
1711 return 0;
1712 }
1713 }
1714
1715 #define TVHEIGHT_MIN 16
1716 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1717
1718 /* Compute the natural height for items. */
1719 static UINT
1720 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1721 {
1722 TEXTMETRICW tm;
1723 HDC hdc = GetDC(0);
1724 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1725 UINT height;
1726
1727 /* Height is the maximum of:
1728 * 16 (a hack because our fonts are tiny), and
1729 * The text height + border & margin, and
1730 * The size of the normal image list
1731 */
1732 GetTextMetricsW(hdc, &tm);
1733 SelectObject(hdc, hOldFont);
1734 ReleaseDC(0, hdc);
1735
1736 height = TVHEIGHT_MIN;
1737 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1738 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1739 if (height < infoPtr->normalImageHeight)
1740 height = infoPtr->normalImageHeight;
1741
1742 /* Round down, unless we support odd ("non even") heights. */
1743 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1744 height &= ~1;
1745
1746 return height;
1747 }
1748
1749 static LRESULT
1750 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1751 {
1752 HIMAGELIST himlOld = 0;
1753 int oldWidth = infoPtr->normalImageWidth;
1754 int oldHeight = infoPtr->normalImageHeight;
1755
1756 TRACE("%u,%p\n", type, himlNew);
1757
1758 switch (type)
1759 {
1760 case TVSIL_NORMAL:
1761 himlOld = infoPtr->himlNormal;
1762 infoPtr->himlNormal = himlNew;
1763
1764 if (himlNew)
1765 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1766 &infoPtr->normalImageHeight);
1767 else
1768 {
1769 infoPtr->normalImageWidth = 0;
1770 infoPtr->normalImageHeight = 0;
1771 }
1772
1773 break;
1774
1775 case TVSIL_STATE:
1776 himlOld = infoPtr->himlState;
1777 infoPtr->himlState = himlNew;
1778
1779 if (himlNew)
1780 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1781 &infoPtr->stateImageHeight);
1782 else
1783 {
1784 infoPtr->stateImageWidth = 0;
1785 infoPtr->stateImageHeight = 0;
1786 }
1787
1788 break;
1789
1790 default:
1791 ERR("unknown imagelist type %u\n", type);
1792 }
1793
1794 if (oldWidth != infoPtr->normalImageWidth ||
1795 oldHeight != infoPtr->normalImageHeight)
1796 {
1797 BOOL bRecalcVisible = FALSE;
1798
1799 if (oldHeight != infoPtr->normalImageHeight &&
1800 !infoPtr->bHeightSet)
1801 {
1802 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1803 bRecalcVisible = TRUE;
1804 }
1805
1806 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1807 infoPtr->normalImageWidth != infoPtr->uIndent)
1808 {
1809 infoPtr->uIndent = infoPtr->normalImageWidth;
1810 bRecalcVisible = TRUE;
1811 }
1812
1813 if (bRecalcVisible)
1814 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1815
1816 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1817 TREEVIEW_UpdateScrollBars(infoPtr);
1818 }
1819
1820 TREEVIEW_Invalidate(infoPtr, NULL);
1821
1822 return (LRESULT)himlOld;
1823 }
1824
1825 static LRESULT
1826 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1827 {
1828 INT prevHeight = infoPtr->uItemHeight;
1829
1830 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1831 if (newHeight == -1)
1832 {
1833 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1834 infoPtr->bHeightSet = FALSE;
1835 }
1836 else
1837 {
1838 if (newHeight == 0) newHeight = 1;
1839 infoPtr->uItemHeight = newHeight;
1840 infoPtr->bHeightSet = TRUE;
1841 }
1842
1843 /* Round down, unless we support odd ("non even") heights. */
1844 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1845 {
1846 infoPtr->uItemHeight &= ~1;
1847 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1848 }
1849
1850 if (infoPtr->uItemHeight != prevHeight)
1851 {
1852 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1853 TREEVIEW_UpdateScrollBars(infoPtr);
1854 TREEVIEW_Invalidate(infoPtr, NULL);
1855 }
1856
1857 return prevHeight;
1858 }
1859
1860 static LRESULT
1861 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1862 {
1863 TRACE("\n");
1864 return infoPtr->uItemHeight;
1865 }
1866
1867
1868 static LRESULT
1869 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1870 {
1871 TRACE("%p\n", infoPtr->hFont);
1872 return (LRESULT)infoPtr->hFont;
1873 }
1874
1875
1876 static INT CALLBACK
1877 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1878 {
1879 (void)unused;
1880
1881 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1882
1883 return 1;
1884 }
1885
1886 static LRESULT
1887 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1888 {
1889 UINT uHeight = infoPtr->uItemHeight;
1890
1891 TRACE("%p %i\n", hFont, bRedraw);
1892
1893 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1894
1895 DeleteObject(infoPtr->hBoldFont);
1896 DeleteObject(infoPtr->hUnderlineFont);
1897 DeleteObject(infoPtr->hBoldUnderlineFont);
1898 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1899 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1900 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1901
1902 if (!infoPtr->bHeightSet)
1903 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1904
1905 if (uHeight != infoPtr->uItemHeight)
1906 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1907
1908 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1909
1910 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1911 TREEVIEW_UpdateScrollBars(infoPtr);
1912
1913 if (bRedraw)
1914 TREEVIEW_Invalidate(infoPtr, NULL);
1915
1916 return 0;
1917 }
1918
1919
1920 static LRESULT
1921 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1922 {
1923 TRACE("\n");
1924 return (LRESULT)infoPtr->clrLine;
1925 }
1926
1927 static LRESULT
1928 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1929 {
1930 COLORREF prevColor = infoPtr->clrLine;
1931
1932 TRACE("\n");
1933 infoPtr->clrLine = color;
1934 return (LRESULT)prevColor;
1935 }
1936
1937
1938 static LRESULT
1939 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1940 {
1941 TRACE("\n");
1942 return (LRESULT)infoPtr->clrText;
1943 }
1944
1945 static LRESULT
1946 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1947 {
1948 COLORREF prevColor = infoPtr->clrText;
1949
1950 TRACE("\n");
1951 infoPtr->clrText = color;
1952
1953 if (infoPtr->clrText != prevColor)
1954 TREEVIEW_Invalidate(infoPtr, NULL);
1955
1956 return (LRESULT)prevColor;
1957 }
1958
1959
1960 static LRESULT
1961 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1962 {
1963 TRACE("\n");
1964 return (LRESULT)infoPtr->clrBk;
1965 }
1966
1967 static LRESULT
1968 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1969 {
1970 COLORREF prevColor = infoPtr->clrBk;
1971
1972 TRACE("\n");
1973 infoPtr->clrBk = newColor;
1974
1975 if (newColor != prevColor)
1976 TREEVIEW_Invalidate(infoPtr, NULL);
1977
1978 return (LRESULT)prevColor;
1979 }
1980
1981
1982 static LRESULT
1983 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1984 {
1985 TRACE("\n");
1986 return (LRESULT)infoPtr->clrInsertMark;
1987 }
1988
1989 static LRESULT
1990 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1991 {
1992 COLORREF prevColor = infoPtr->clrInsertMark;
1993
1994 TRACE("0x%08x\n", color);
1995 infoPtr->clrInsertMark = color;
1996
1997 return (LRESULT)prevColor;
1998 }
1999
2000
2001 static LRESULT
2002 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2003 {
2004 TRACE("%d %p\n", wParam, item);
2005
2006 if (!TREEVIEW_ValidItem(infoPtr, item))
2007 return 0;
2008
2009 infoPtr->insertBeforeorAfter = wParam;
2010 infoPtr->insertMarkItem = item;
2011
2012 TREEVIEW_Invalidate(infoPtr, NULL);
2013
2014 return 1;
2015 }
2016
2017
2018 /************************************************************************
2019 * Some serious braindamage here. lParam is a pointer to both the
2020 * input HTREEITEM and the output RECT.
2021 */
2022 static LRESULT
2023 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2024 {
2025 TREEVIEW_ITEM *item;
2026 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2027
2028 TRACE("\n");
2029
2030 if (pItem == NULL)
2031 return FALSE;
2032
2033 item = *pItem;
2034 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2035 return FALSE;
2036
2037 /*
2038 * If wParam is TRUE return the text size otherwise return
2039 * the whole item size
2040 */
2041 if (fTextRect)
2042 {
2043 /* Windows does not send TVN_GETDISPINFO here. */
2044
2045 lpRect->top = item->rect.top;
2046 lpRect->bottom = item->rect.bottom;
2047
2048 lpRect->left = item->textOffset;
2049 if (!item->textWidth)
2050 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2051
2052 lpRect->right = item->textOffset + item->textWidth + 4;
2053 }
2054 else
2055 {
2056 *lpRect = item->rect;
2057 }
2058
2059 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2060
2061 return TRUE;
2062 }
2063
2064 static inline LRESULT
2065 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2066 {
2067 /* Surprise! This does not take integral height into account. */
2068 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2069 return infoPtr->clientHeight / infoPtr->uItemHeight;
2070 }
2071
2072
2073 static LRESULT
2074 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2075 {
2076 TREEVIEW_ITEM *item = tvItem->hItem;
2077
2078 if (!TREEVIEW_ValidItem(infoPtr, item))
2079 {
2080 BOOL valid_item = FALSE;
2081 if (!item) return FALSE;
2082
2083 __TRY
2084 {
2085 infoPtr = item->infoPtr;
2086 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2087 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2088 }
2089 __EXCEPT_PAGE_FAULT
2090 {
2091 }
2092 __ENDTRY
2093 if (!valid_item) return FALSE;
2094 }
2095
2096 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2097
2098 if (tvItem->mask & TVIF_CHILDREN)
2099 {
2100 if (item->cChildren==I_CHILDRENCALLBACK)
2101 FIXME("I_CHILDRENCALLBACK not supported\n");
2102 tvItem->cChildren = item->cChildren;
2103 }
2104
2105 if (tvItem->mask & TVIF_HANDLE)
2106 tvItem->hItem = item;
2107
2108 if (tvItem->mask & TVIF_IMAGE)
2109 tvItem->iImage = item->iImage;
2110
2111 if (tvItem->mask & TVIF_INTEGRAL)
2112 tvItem->iIntegral = item->iIntegral;
2113
2114 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2115 tvItem->lParam = item->lParam;
2116
2117 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2118 tvItem->iSelectedImage = item->iSelectedImage;
2119
2120 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2121 tvItem->iExpandedImage = item->iExpandedImage;
2122
2123 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2124 tvItem->state = item->state;
2125
2126 if (tvItem->mask & TVIF_TEXT)
2127 {
2128 if (item->pszText == NULL)
2129 {
2130 if (tvItem->cchTextMax > 0)
2131 tvItem->pszText[0] = '\0';
2132 }
2133 else if (isW)
2134 {
2135 if (item->pszText == LPSTR_TEXTCALLBACKW)
2136 {
2137 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2138 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2139 }
2140 else
2141 {
2142 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2143 }
2144 }
2145 else
2146 {
2147 if (item->pszText == LPSTR_TEXTCALLBACKW)
2148 {
2149 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2150 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2151 }
2152 else
2153 {
2154 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2155 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2156 }
2157 }
2158 }
2159
2160 if (tvItem->mask & TVIF_STATEEX)
2161 {
2162 FIXME("Extended item state not supported, returning 0.\n");
2163 tvItem->uStateEx = 0;
2164 }
2165
2166 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2167 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2168
2169 return TRUE;
2170 }
2171
2172 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2173 * which is wrong. */
2174 static LRESULT
2175 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2176 {
2177 TREEVIEW_ITEM *item;
2178 TREEVIEW_ITEM originalItem;
2179
2180 item = tvItem->hItem;
2181
2182 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2183 tvItem->mask);
2184
2185 if (!TREEVIEW_ValidItem(infoPtr, item))
2186 return FALSE;
2187
2188 /* store the original item values */
2189 originalItem = *item;
2190
2191 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2192 return FALSE;
2193
2194 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2195 if ((tvItem->mask & TVIF_TEXT
2196 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2197 && ISVISIBLE(item))
2198 {
2199 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2200 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2201 }
2202
2203 if (tvItem->mask != 0 && ISVISIBLE(item))
2204 {
2205 /* The refresh updates everything, but we can't wait until then. */
2206 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2207
2208 /* if any of the item's values changed and it's not a callback, redraw the item */
2209 if (item_changed(&originalItem, item, tvItem))
2210 {
2211 if (tvItem->mask & TVIF_INTEGRAL)
2212 {
2213 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2214 TREEVIEW_UpdateScrollBars(infoPtr);
2215
2216 TREEVIEW_Invalidate(infoPtr, NULL);
2217 }
2218 else
2219 {
2220 TREEVIEW_UpdateScrollBars(infoPtr);
2221 TREEVIEW_Invalidate(infoPtr, item);
2222 }
2223 }
2224 }
2225
2226 return TRUE;
2227 }
2228
2229 static LRESULT
2230 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2231 {
2232 TRACE("\n");
2233
2234 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2235 return 0;
2236
2237 return (item->state & mask);
2238 }
2239
2240 static LRESULT
2241 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2242 {
2243 TREEVIEW_ITEM *retval;
2244
2245 retval = 0;
2246
2247 /* handle all the global data here */
2248 switch (which)
2249 {
2250 case TVGN_CHILD: /* Special case: child of 0 is root */
2251 if (item)
2252 break;
2253 /* fall through */
2254 case TVGN_ROOT:
2255 retval = infoPtr->root->firstChild;
2256 break;
2257
2258 case TVGN_CARET:
2259 retval = infoPtr->selectedItem;
2260 break;
2261
2262 case TVGN_FIRSTVISIBLE:
2263 retval = infoPtr->firstVisible;
2264 break;
2265
2266 case TVGN_DROPHILITE:
2267 retval = infoPtr->dropItem;
2268 break;
2269
2270 case TVGN_LASTVISIBLE:
2271 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2272 break;
2273 }
2274
2275 if (retval)
2276 {
2277 TRACE("flags:0x%x, returns %p\n", which, retval);
2278 return (LRESULT)retval;
2279 }
2280
2281 if (item == TVI_ROOT) item = infoPtr->root;
2282
2283 if (!TREEVIEW_ValidItem(infoPtr, item))
2284 return FALSE;
2285
2286 switch (which)
2287 {
2288 case TVGN_NEXT:
2289 retval = item->nextSibling;
2290 break;
2291 case TVGN_PREVIOUS:
2292 retval = item->prevSibling;
2293 break;
2294 case TVGN_PARENT:
2295 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2296 break;
2297 case TVGN_CHILD:
2298 retval = item->firstChild;
2299 break;
2300 case TVGN_NEXTVISIBLE:
2301 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2302 break;
2303 case TVGN_PREVIOUSVISIBLE:
2304 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2305 break;
2306 default:
2307 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2308 break;
2309 }
2310
2311 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2312 return (LRESULT)retval;
2313 }
2314
2315
2316 static LRESULT
2317 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2318 {
2319 TRACE(" %d\n", infoPtr->uNumItems);
2320 return (LRESULT)infoPtr->uNumItems;
2321 }
2322
2323 static VOID
2324 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2325 {
2326 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2327 {
2328 static const unsigned int state_table[] = { 0, 2, 1 };
2329
2330 unsigned int state;
2331
2332 state = STATEIMAGEINDEX(item->state);
2333 TRACE("state: 0x%x\n", state);
2334 item->state &= ~TVIS_STATEIMAGEMASK;
2335
2336 if (state < 3)
2337 state = state_table[state];
2338
2339 item->state |= INDEXTOSTATEIMAGEMASK(state);
2340
2341 TRACE("state: 0x%x\n", state);
2342 TREEVIEW_Invalidate(infoPtr, item);
2343 }
2344 }
2345
2346
2347 /* Painting *************************************************************/
2348
2349 /* Draw the lines and expand button for an item. Also draws one section
2350 * of the line from item's parent to item's parent's next sibling. */
2351 static void
2352 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2353 {
2354 LONG centerx, centery;
2355 BOOL lar = ((infoPtr->dwStyle
2356 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2357 > TVS_LINESATROOT);
2358 HBRUSH hbr, hbrOld;
2359 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2360
2361 if (!lar && item->iLevel == 0)
2362 return;
2363
2364 hbr = CreateSolidBrush(clrBk);
2365 hbrOld = SelectObject(hdc, hbr);
2366
2367 centerx = (item->linesOffset + item->stateOffset) / 2;
2368 centery = (item->rect.top + item->rect.bottom) / 2;
2369
2370 if (infoPtr->dwStyle & TVS_HASLINES)
2371 {
2372 HPEN hOldPen, hNewPen;
2373 HTREEITEM parent;
2374 LOGBRUSH lb;
2375
2376 /* Get a dotted grey pen */
2377 lb.lbStyle = BS_SOLID;
2378 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2379 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2380 hOldPen = SelectObject(hdc, hNewPen);
2381
2382 /* Make sure the center is on a dot (using +2 instead
2383 * of +1 gives us pixel-by-pixel compat with native) */
2384 centery = (centery + 2) & ~1;
2385
2386 MoveToEx(hdc, item->stateOffset, centery, NULL);
2387 LineTo(hdc, centerx - 1, centery);
2388
2389 if (item->prevSibling || item->parent != infoPtr->root)
2390 {
2391 MoveToEx(hdc, centerx, item->rect.top, NULL);
2392 LineTo(hdc, centerx, centery);
2393 }
2394
2395 if (item->nextSibling)
2396 {
2397 MoveToEx(hdc, centerx, centery, NULL);
2398 LineTo(hdc, centerx, item->rect.bottom + 1);
2399 }
2400
2401 /* Draw the line from our parent to its next sibling. */
2402 parent = item->parent;
2403 while (parent != infoPtr->root)
2404 {
2405 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2406
2407 if (parent->nextSibling
2408 /* skip top-levels unless TVS_LINESATROOT */
2409 && parent->stateOffset > parent->linesOffset)
2410 {
2411 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2412 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2413 }
2414
2415 parent = parent->parent;
2416 }
2417
2418 SelectObject(hdc, hOldPen);
2419 DeleteObject(hNewPen);
2420 }
2421
2422 /*
2423 * Display the (+/-) signs
2424 */
2425
2426 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2427 {
2428 if (item->cChildren)
2429 {
2430 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2431 if (theme)
2432 {
2433 RECT glyphRect = item->rect;
2434 glyphRect.left = item->linesOffset;
2435 glyphRect.right = item->stateOffset;
2436 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2437 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2438 &glyphRect, NULL);
2439 }
2440 else
2441 {
2442 LONG height = item->rect.bottom - item->rect.top;
2443 LONG width = item->stateOffset - item->linesOffset;
2444 LONG rectsize = min(height, width) / 4;
2445 /* plussize = ceil(rectsize * 3/4) */
2446 LONG plussize = (rectsize + 1) * 3 / 4;
2447
2448 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2449 HPEN old_pen = SelectObject(hdc, new_pen);
2450
2451 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2452 centerx + rectsize + 2, centery + rectsize + 2);
2453
2454 SelectObject(hdc, old_pen);
2455 DeleteObject(new_pen);
2456
2457 /* draw +/- signs with current text color */
2458 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2459 old_pen = SelectObject(hdc, new_pen);
2460
2461 if (height < 18 || width < 18)
2462 {
2463 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2464 LineTo(hdc, centerx + plussize, centery);
2465
2466 if (!(item->state & TVIS_EXPANDED) ||
2467 (item->state & TVIS_EXPANDPARTIAL))
2468 {
2469 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2470 LineTo(hdc, centerx, centery + plussize);
2471 }
2472 }
2473 else
2474 {
2475 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2476 centerx + plussize, centery + 2);
2477
2478 if (!(item->state & TVIS_EXPANDED) ||
2479 (item->state & TVIS_EXPANDPARTIAL))
2480 {
2481 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2482 centerx + 2, centery + plussize);
2483 SetPixel(hdc, centerx - 1, centery, clrBk);
2484 SetPixel(hdc, centerx + 1, centery, clrBk);
2485 }
2486 }
2487
2488 SelectObject(hdc, old_pen);
2489 DeleteObject(new_pen);
2490 }
2491 }
2492 }
2493 SelectObject(hdc, hbrOld);
2494 DeleteObject(hbr);
2495 }
2496
2497 static void
2498 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2499 {
2500 INT cditem;
2501 HFONT hOldFont;
2502 COLORREF oldTextColor, oldTextBkColor;
2503 int centery;
2504 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2505 NMTVCUSTOMDRAW nmcdhdr;
2506
2507 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2508
2509 /* - If item is drop target or it is selected and window is in focus -
2510 * use blue background (COLOR_HIGHLIGHT).
2511 * - If item is selected, window is not in focus, but it has style
2512 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2513 * - Otherwise - use background color
2514 */
2515 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2516 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2517 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2518 {
2519 if ((item->state & TVIS_DROPHILITED) || inFocus)
2520 {
2521 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2522 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2523 }
2524 else
2525 {
2526 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2527 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2528 }
2529 }
2530 else
2531 {
2532 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2533 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2534 nmcdhdr.clrText = comctl32_color.clrHighlight;
2535 else
2536 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2537 }
2538
2539 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2540
2541 /* The custom draw handler can query the text rectangle,
2542 * so get ready. */
2543 /* should already be known, set to 0 when changed */
2544 if (!item->textWidth)
2545 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2546
2547 cditem = 0;
2548
2549 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2550 {
2551 cditem = TREEVIEW_SendCustomDrawItemNotify
2552 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2553 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2554
2555 if (cditem & CDRF_SKIPDEFAULT)
2556 {
2557 SelectObject(hdc, hOldFont);
2558 return;
2559 }
2560 }
2561
2562 if (cditem & CDRF_NEWFONT)
2563 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2564
2565 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2566
2567 /* Set colors. Custom draw handler can change these so we do this after it. */
2568 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2569 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2570
2571 centery = (item->rect.top + item->rect.bottom) / 2;
2572
2573 /*
2574 * Display the images associated with this item
2575 */
2576 {
2577 INT imageIndex;
2578
2579 /* State images are displayed to the left of the Normal image
2580 * image number is in state; zero should be `display no image'.
2581 */
2582 imageIndex = STATEIMAGEINDEX(item->state);
2583
2584 if (infoPtr->himlState && imageIndex)
2585 {
2586 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2587 item->stateOffset,
2588 centery - infoPtr->stateImageHeight / 2,
2589 ILD_NORMAL);
2590 }
2591
2592 /* Now, draw the normal image; can be either selected,
2593 * non-selected or expanded image.
2594 */
2595
2596 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2597 {
2598 /* The item is currently selected */
2599 imageIndex = item->iSelectedImage;
2600 }
2601 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2602 {
2603 /* The item is currently not selected but expanded */
2604 imageIndex = item->iExpandedImage;
2605 }
2606 else
2607 {
2608 /* The item is not selected and not expanded */
2609 imageIndex = item->iImage;
2610 }
2611
2612 if (infoPtr->himlNormal)
2613 {
2614 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2615
2616 style |= item->state & TVIS_OVERLAYMASK;
2617
2618 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2619 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2620 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2621 style);
2622 }
2623 }
2624
2625
2626 /*
2627 * Display the text associated with this item
2628 */
2629
2630 /* Don't paint item's text if it's being edited */
2631 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2632 {
2633 if (item->pszText)
2634 {
2635 RECT rcText;
2636 UINT align;
2637 SIZE sz;
2638
2639 rcText.top = item->rect.top;
2640 rcText.bottom = item->rect.bottom;
2641 rcText.left = item->textOffset;
2642 rcText.right = rcText.left + item->textWidth + 4;
2643
2644 TRACE("drawing text %s at (%s)\n",
2645 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2646
2647 /* Draw it */
2648 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2649
2650 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2651 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2652 ETO_CLIPPED | ETO_OPAQUE,
2653 &rcText,
2654 item->pszText,
2655 lstrlenW(item->pszText),
2656 NULL);
2657 SetTextAlign(hdc, align);
2658
2659 /* Draw focus box around the selected item */
2660 if ((item == infoPtr->selectedItem) && inFocus)
2661 {
2662 DrawFocusRect(hdc,&rcText);
2663 }
2664 }
2665 }
2666
2667 /* Draw insertion mark if necessary */
2668
2669 if (infoPtr->insertMarkItem)
2670 TRACE("item:%d,mark:%p\n",
2671 TREEVIEW_GetItemIndex(infoPtr, item),
2672 infoPtr->insertMarkItem);
2673
2674 if (item == infoPtr->insertMarkItem)
2675 {
2676 HPEN hNewPen, hOldPen;
2677 int offset;
2678 int left, right;
2679
2680 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2681 hOldPen = SelectObject(hdc, hNewPen);
2682
2683 if (infoPtr->insertBeforeorAfter)
2684 offset = item->rect.bottom - 1;
2685 else
2686 offset = item->rect.top + 1;
2687
2688 left = item->textOffset - 2;
2689 right = item->textOffset + item->textWidth + 2;
2690
2691 MoveToEx(hdc, left, offset - 3, NULL);
2692 LineTo(hdc, left, offset + 4);
2693
2694 MoveToEx(hdc, left, offset, NULL);
2695 LineTo(hdc, right + 1, offset);
2696
2697 MoveToEx(hdc, right, offset + 3, NULL);
2698 LineTo(hdc, right, offset - 4);
2699
2700 SelectObject(hdc, hOldPen);
2701 DeleteObject(hNewPen);
2702 }
2703
2704 /* Restore the hdc state */
2705 SetTextColor(hdc, oldTextColor);
2706 SetBkColor(hdc, oldTextBkColor);
2707 SelectObject(hdc, hOldFont);
2708
2709 if (cditem & CDRF_NOTIFYPOSTPAINT)
2710 {
2711 cditem = TREEVIEW_SendCustomDrawItemNotify
2712 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2713 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2714 }
2715 }
2716
2717 /* Computes treeHeight and treeWidth and updates the scroll bars.
2718 */
2719 static void
2720 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2721 {
2722 TREEVIEW_ITEM *item;
2723 HWND hwnd = infoPtr->hwnd;
2724 BOOL vert = FALSE;
2725 BOOL horz = FALSE;
2726 SCROLLINFO si;
2727 LONG scrollX = infoPtr->scrollX;
2728
2729 infoPtr->treeWidth = 0;
2730 infoPtr->treeHeight = 0;
2731
2732 /* We iterate through all visible items in order to get the tree height
2733 * and width */
2734 item = infoPtr->root->firstChild;
2735
2736 while (item != NULL)
2737 {
2738 if (ISVISIBLE(item))
2739 {
2740 /* actually we draw text at textOffset + 2 */
2741 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2742 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2743
2744 /* This is scroll-adjusted, but we fix this below. */
2745 infoPtr->treeHeight = item->rect.bottom;
2746 }
2747
2748 item = TREEVIEW_GetNextListItem(infoPtr, item);
2749 }
2750
2751 /* Fix the scroll adjusted treeHeight and treeWidth. */
2752 if (infoPtr->root->firstChild)
2753 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2754
2755 infoPtr->treeWidth += infoPtr->scrollX;
2756
2757 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2758
2759 /* Adding one scroll bar may take up enough space that it forces us
2760 * to add the other as well. */
2761 if (infoPtr->treeHeight > infoPtr->clientHeight)
2762 {
2763 vert = TRUE;
2764
2765 if (infoPtr->treeWidth
2766 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2767 horz = TRUE;
2768 }
2769 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2770 horz = TRUE;
2771
2772 if (!vert && horz && infoPtr->treeHeight
2773 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2774 vert = TRUE;
2775
2776 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2777
2778 si.cbSize = sizeof(SCROLLINFO);
2779 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2780 si.nMin = 0;
2781
2782 if (vert)
2783 {
2784 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2785 if ( si.nPage && NULL != infoPtr->firstVisible)
2786 {
2787 si.nPos = infoPtr->firstVisible->visibleOrder;
2788 si.nMax = infoPtr->maxVisibleOrder - 1;
2789
2790 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2791
2792 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2793 ShowScrollBar(hwnd, SB_VERT, TRUE);
2794 infoPtr->uInternalStatus |= TV_VSCROLL;
2795 }
2796 else
2797 {
2798 if (infoPtr->uInternalStatus & TV_VSCROLL)
2799 ShowScrollBar(hwnd, SB_VERT, FALSE);
2800 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2801 }
2802 }
2803 else
2804 {
2805 if (infoPtr->uInternalStatus & TV_VSCROLL)
2806 ShowScrollBar(hwnd, SB_VERT, FALSE);
2807 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2808 }
2809
2810 if (horz)
2811 {
2812 si.nPage = infoPtr->clientWidth;
2813 si.nPos = infoPtr->scrollX;
2814 si.nMax = infoPtr->treeWidth - 1;
2815
2816 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2817 {
2818 si.nPos = si.nMax - max( si.nPage-1, 0 );
2819 scrollX = si.nPos;
2820 }
2821
2822 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2823 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2824 infoPtr->uInternalStatus |= TV_HSCROLL;
2825
2826 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2827 TREEVIEW_HScroll(infoPtr,
2828 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2829 }
2830 else
2831 {
2832 if (infoPtr->uInternalStatus & TV_HSCROLL)
2833 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2834 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2835
2836 scrollX = 0;
2837 if (infoPtr->scrollX != 0)
2838 {
2839 TREEVIEW_HScroll(infoPtr,
2840 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2841 }
2842 }
2843
2844 if (!horz)
2845 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2846 }
2847
2848 static void
2849 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2850 {
2851 HBRUSH hBrush;
2852 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2853
2854 hBrush = CreateSolidBrush(clrBk);
2855 FillRect(hdc, rc, hBrush);
2856 DeleteObject(hBrush);
2857 }
2858
2859 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2860 static LRESULT
2861 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2862 {
2863 RECT rect;
2864
2865 TRACE("%p\n", infoPtr);
2866
2867 GetClientRect(infoPtr->hwnd, &rect);
2868 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2869
2870 return 1;
2871 }
2872
2873 static void
2874 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2875 {
2876 HWND hwnd = infoPtr->hwnd;
2877 RECT rect = *rc;
2878 TREEVIEW_ITEM *item;
2879
2880 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2881 {
2882 TRACE("empty window\n");
2883 return;
2884 }
2885
2886 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2887 hdc, rect);
2888
2889 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2890 {
2891 ReleaseDC(hwnd, hdc);
2892 return;
2893 }
2894
2895 for (item = infoPtr->root->firstChild;
2896 item != NULL;
2897 item = TREEVIEW_GetNextListItem(infoPtr, item))
2898 {
2899 if (ISVISIBLE(item))
2900 {
2901 /* Avoid unneeded calculations */
2902 if (item->rect.top > rect.bottom)
2903 break;
2904 if (item->rect.bottom < rect.top)
2905 continue;
2906
2907 TREEVIEW_DrawItem(infoPtr, hdc, item);
2908 }
2909 }
2910
2911 TREEVIEW_UpdateScrollBars(infoPtr);
2912
2913 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2914 infoPtr->cdmode =
2915 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2916 }
2917
2918 static inline void
2919 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2920 {
2921 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2922 }
2923
2924 static void
2925 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2926 {
2927 if (item)
2928 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2929 else
2930 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2931 }
2932
2933 static void
2934 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2935 {
2936 RECT rc;
2937 HBITMAP hbm, hbmOld;
2938 HDC hdc, hdcScreen;
2939 int nIndex;
2940
2941 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2942
2943 hdcScreen = GetDC(0);
2944
2945 hdc = CreateCompatibleDC(hdcScreen);
2946 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2947 hbmOld = SelectObject(hdc, hbm);
2948
2949 SetRect(&rc, 0, 0, 48, 16);
2950 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2951
2952 SetRect(&rc, 18, 2, 30, 14);
2953 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2954 DFCS_BUTTONCHECK|DFCS_FLAT);
2955
2956 SetRect(&rc, 34, 2, 46, 14);
2957 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2958 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
2959
2960 SelectObject(hdc, hbmOld);
2961 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
2962 comctl32_color.clrWindow);
2963 TRACE("checkbox index %d\n", nIndex);
2964
2965 DeleteObject(hbm);
2966 DeleteDC(hdc);
2967 ReleaseDC(0, hdcScreen);
2968
2969 infoPtr->stateImageWidth = 16;
2970 infoPtr->stateImageHeight = 16;
2971 }
2972
2973 static void
2974 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2975 {
2976 TREEVIEW_ITEM *child = item->firstChild;
2977
2978 item->state &= ~TVIS_STATEIMAGEMASK;
2979 item->state |= INDEXTOSTATEIMAGEMASK(1);
2980
2981 while (child)
2982 {
2983 TREEVIEW_ITEM *next = child->nextSibling;
2984 TREEVIEW_ResetImageStateIndex(infoPtr, child);
2985 child = next;
2986 }
2987 }
2988
2989 static LRESULT
2990 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2991 {
2992 HDC hdc;
2993 PAINTSTRUCT ps;
2994 RECT rc;
2995
2996 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2997
2998 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
2999 {
3000 TREEVIEW_InitCheckboxes(infoPtr);
3001 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3002
3003 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
3004 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3005 TREEVIEW_UpdateScrollBars(infoPtr);
3006 TREEVIEW_Invalidate(infoPtr, NULL);
3007 }
3008
3009 if (hdc_ref)
3010 {
3011 hdc = hdc_ref;
3012 GetClientRect(infoPtr->hwnd, &rc);
3013 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3014 }
3015 else
3016 {
3017 hdc = BeginPaint(infoPtr->hwnd, &ps);
3018 rc = ps.rcPaint;
3019 if(ps.fErase)
3020 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3021 }
3022
3023 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3024 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3025
3026 if (!hdc_ref)
3027 EndPaint(infoPtr->hwnd, &ps);
3028
3029 return 0;
3030 }
3031
3032 static LRESULT
3033 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3034 {
3035 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3036
3037 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3038 return 0;
3039
3040 if (options & PRF_ERASEBKGND)
3041 TREEVIEW_EraseBackground(infoPtr, hdc);
3042
3043 if (options & PRF_CLIENT)
3044 {
3045 RECT rc;
3046 GetClientRect(infoPtr->hwnd, &rc);
3047 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3048 }
3049
3050 return 0;
3051 }
3052
3053 /* Sorting **************************************************************/
3054
3055 /***************************************************************************
3056 * Forward the DPA local callback to the treeview owner callback
3057 */
3058 static INT WINAPI
3059 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3060 const TVSORTCB *pCallBackSort)
3061 {
3062 /* Forward the call to the client-defined callback */
3063 return pCallBackSort->lpfnCompare(first->lParam,
3064 second->lParam,
3065 pCallBackSort->lParam);
3066 }
3067
3068 /***************************************************************************
3069 * Treeview native sort routine: sort on item text.
3070 */
3071 static INT WINAPI
3072 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3073 const TREEVIEW_INFO *infoPtr)
3074 {
3075 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3076 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3077
3078 if(first->pszText && second->pszText)
3079 return lstrcmpiW(first->pszText, second->pszText);
3080 else if(first->pszText)
3081 return -1;
3082 else if(second->pszText)
3083 return 1;
3084 else
3085 return 0;
3086 }
3087
3088 /* Returns the number of physical children belonging to item. */
3089 static INT
3090 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3091 {
3092 INT cChildren = 0;
3093 HTREEITEM hti;
3094
3095 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3096 cChildren++;
3097
3098 return cChildren;
3099 }
3100
3101 /* Returns a DPA containing a pointer to each physical child of item in
3102 * sibling order. If item has no children, an empty DPA is returned. */
3103 static HDPA
3104 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3105 {
3106 HTREEITEM child;
3107
3108 HDPA list = DPA_Create(8);
3109 if (list == 0) return NULL;
3110
3111 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3112 {
3113 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3114 {
3115 DPA_Destroy(list);
3116 return NULL;
3117 }
3118 }
3119
3120 return list;
3121 }
3122
3123 /***************************************************************************
3124 * Setup the treeview structure with regards of the sort method
3125 * and sort the children of the TV item specified in lParam
3126 * fRecurse: currently unused. Should be zero.
3127 * parent: if pSort!=NULL, should equal pSort->hParent.
3128 * otherwise, item which child items are to be sorted.
3129 * pSort: sort method info. if NULL, sort on item text.
3130 * if non-NULL, sort on item's lParam content, and let the
3131 * application decide what that means. See also TVM_SORTCHILDRENCB.
3132 */
3133
3134 static LRESULT
3135 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3136 LPTVSORTCB pSort)
3137 {
3138 INT cChildren;
3139 PFNDPACOMPARE pfnCompare;
3140 LPARAM lpCompare;
3141
3142 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3143 if (parent == TVI_ROOT || parent == NULL)
3144 parent = infoPtr->root;
3145
3146 /* Check for a valid handle to the parent item */
3147 if (!TREEVIEW_ValidItem(infoPtr, parent))
3148 {
3149 ERR("invalid item hParent=%p\n", parent);
3150 return FALSE;
3151 }
3152
3153 if (pSort)
3154 {
3155 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3156 lpCompare = (LPARAM)pSort;
3157 }
3158 else
3159 {
3160 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3161 lpCompare = (LPARAM)infoPtr;
3162 }
3163
3164 cChildren = TREEVIEW_CountChildren(parent);
3165
3166 /* Make sure there is something to sort */
3167 if (cChildren > 1)
3168 {
3169 /* TREEVIEW_ITEM rechaining */
3170 INT count = 0;
3171 HTREEITEM item = 0;
3172 HTREEITEM nextItem = 0;
3173 HTREEITEM prevItem = 0;
3174
3175 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3176
3177 if (sortList == NULL)
3178 return FALSE;
3179
3180 /* let DPA sort the list */
3181 DPA_Sort(sortList, pfnCompare, lpCompare);
3182
3183 /* The order of DPA entries has been changed, so fixup the
3184 * nextSibling and prevSibling pointers. */
3185
3186 item = DPA_GetPtr(sortList, count++);
3187 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3188 {
3189 /* link the two current item together */
3190 item->nextSibling = nextItem;
3191 nextItem->prevSibling = item;
3192
3193 if (prevItem == NULL)
3194 {
3195 /* this is the first item, update the parent */
3196 parent->firstChild = item;
3197 item->prevSibling = NULL;
3198 }
3199 else
3200 {
3201 /* fix the back chaining */
3202 item->prevSibling = prevItem;
3203 }
3204
3205 /* get ready for the next one */
3206 prevItem = item;
3207 item = nextItem;
3208 }
3209
3210 /* the last item is pointed to by item and never has a sibling */
3211 item->nextSibling = NULL;
3212 parent->lastChild = item;
3213
3214 DPA_Destroy(sortList);
3215
3216 TREEVIEW_VerifyTree(infoPtr);
3217
3218 if (parent->state & TVIS_EXPANDED)
3219 {
3220 int visOrder = infoPtr->firstVisible->visibleOrder;
3221
3222 if (parent == infoPtr->root)
3223 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3224 else
3225 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3226
3227 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3228 {
3229 TREEVIEW_ITEM *item;
3230
3231 for (item = infoPtr->root->firstChild; item != NULL;
3232 item = TREEVIEW_GetNextListItem(infoPtr, item))
3233 {
3234 if (item->visibleOrder == visOrder)
3235 break;
3236 }
3237
3238 if (!item) item = parent->firstChild;
3239 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3240 }
3241
3242 TREEVIEW_Invalidate(infoPtr, NULL);
3243 }
3244
3245 return TRUE;
3246 }
3247 return FALSE;
3248 }
3249
3250
3251 /***************************************************************************
3252 * Setup the treeview structure with regards of the sort method
3253 * and sort the children of the TV item specified in lParam
3254 */
3255 static LRESULT
3256 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3257 {
3258 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3259 }
3260
3261
3262 /***************************************************************************
3263 * Sort the children of the TV item specified in lParam.
3264 */
3265 static LRESULT
3266 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3267 {
3268 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3269 }
3270
3271
3272 /* Expansion/Collapse ***************************************************/
3273
3274 static BOOL
3275 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3276 UINT action)
3277 {
3278 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3279 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3280 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3281 0, item);
3282 }
3283
3284 static VOID
3285 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3286 UINT action)
3287 {
3288 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3289 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3290 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3291 0, item);
3292 }
3293
3294
3295 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3296 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3297 static BOOL
3298 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3299 BOOL bRemoveChildren, BOOL bUser)
3300 {
3301 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3302 BOOL bSetSelection, bSetFirstVisible;
3303 RECT scrollRect;
3304 LONG scrollDist = 0;
3305 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3306 BOOL wasExpanded;
3307
3308 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3309
3310 if (!TREEVIEW_HasChildren(infoPtr, item))
3311 return FALSE;
3312
3313 if (bUser)
3314 TREEVIEW_SendExpanding(infoPtr, item, action);
3315
3316 if (item->firstChild == NULL)
3317 return FALSE;
3318
3319 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3320 item->state &= ~TVIS_EXPANDED;
3321
3322 if (wasExpanded && bUser)
3323 TREEVIEW_SendExpanded(infoPtr, item, action);
3324
3325 bSetSelection = (infoPtr->selectedItem != NULL
3326 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3327
3328 bSetFirstVisible = (infoPtr->firstVisible != NULL
3329 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3330
3331 tmpItem = item;
3332 while (tmpItem)
3333 {
3334 if (tmpItem->nextSibling)
3335 {
3336 nextItem = tmpItem->nextSibling;
3337 break;
3338 }
3339 tmpItem = tmpItem->parent;
3340 }
3341
3342 if (nextItem)
3343 scrollDist = nextItem->rect.top;
3344
3345 if (bRemoveChildren)
3346 {
3347 INT old_cChildren = item->cChildren;
3348 TRACE("TVE_COLLAPSERESET\n");
3349 item->state &= ~TVIS_EXPANDEDONCE;
3350 TREEVIEW_RemoveAllChildren(infoPtr, item);
3351 item->cChildren = old_cChildren;
3352 }
3353 if (!wasExpanded)
3354 return FALSE;
3355
3356 if (item->firstChild)
3357 {
3358 TREEVIEW_ITEM *i, *sibling;
3359
3360 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3361
3362 for (i = item->firstChild; i != sibling;
3363 i = TREEVIEW_GetNextListItem(infoPtr, i))
3364 {
3365 i->visibleOrder = -1;
3366 }
3367 }
3368
3369 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3370
3371 if (nextItem)
3372 scrollDist = -(scrollDist - nextItem->rect.top);
3373
3374 if (bSetSelection)
3375 {
3376 /* Don't call DoSelectItem, it sends notifications. */
3377 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3378 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3379 item->state |= TVIS_SELECTED;
3380 infoPtr->selectedItem = item;
3381 }
3382
3383 TREEVIEW_UpdateScrollBars(infoPtr);
3384
3385 scrollRect.left = 0;
3386 scrollRect.right = infoPtr->clientWidth;
3387 scrollRect.bottom = infoPtr->clientHeight;
3388
3389 if (nextItem)
3390 {
3391 scrollRect.top = nextItem->rect.top;
3392
3393 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3394 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3395 TREEVIEW_Invalidate(infoPtr, item);
3396 } else {
3397 scrollRect.top = item->rect.top;
3398 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3399 }
3400
3401 TREEVIEW_SetFirstVisible(infoPtr,
3402 bSetFirstVisible ? item : infoPtr->firstVisible,
3403 TRUE);
3404
3405 return wasExpanded;
3406 }
3407
3408 static BOOL
3409 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3410 BOOL partial, BOOL user)
3411 {
3412 LONG scrollDist;
3413 LONG orgNextTop = 0;
3414 RECT scrollRect;
3415 TREEVIEW_ITEM *nextItem, *tmpItem;
3416 BOOL sendsNotifications;
3417
3418 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3419
3420 if (!TREEVIEW_HasChildren(infoPtr, item))
3421 return FALSE;
3422
3423 tmpItem = item; nextItem = NULL;
3424 while (tmpItem)
3425 {
3426 if (tmpItem->nextSibling)
3427 {
3428 nextItem = tmpItem->nextSibling;
3429 break;
3430 }
3431 tmpItem = tmpItem->parent;
3432 }
3433
3434 if (nextItem)
3435 orgNextTop = nextItem->rect.top;
3436
3437 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3438
3439 sendsNotifications = user || ((item->cChildren != 0) &&
3440 !(item->state & TVIS_EXPANDEDONCE));
3441 if (sendsNotifications)
3442 {
3443 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3444 {
3445 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3446 return FALSE;
3447 }
3448 }
3449 if (!item->firstChild)
3450 return FALSE;
3451
3452 item->state |= TVIS_EXPANDED;
3453
3454 if (partial)
3455 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3456
3457 if (ISVISIBLE(item))
3458 {
3459 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3460 TREEVIEW_UpdateSubTree(infoPtr, item);
3461 TREEVIEW_UpdateScrollBars(infoPtr);
3462
3463 scrollRect.left = 0;
3464 scrollRect.bottom = infoPtr->treeHeight;
3465 scrollRect.right = infoPtr->clientWidth;
3466 if (nextItem)
3467 {
3468 scrollDist = nextItem->rect.top - orgNextTop;
3469 scrollRect.top = orgNextTop;
3470
3471 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3472 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3473 TREEVIEW_Invalidate (infoPtr, item);
3474 } else {
3475 scrollRect.top = item->rect.top;
3476 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3477 }
3478
3479 /* Scroll up so that as many children as possible are visible.
3480 * This fails when expanding causes an HScroll bar to appear, but we
3481 * don't know that yet, so the last item is obscured. */
3482 if (item->firstChild != NULL)
3483 {
3484 int nChildren = item->lastChild->visibleOrder
3485 - item->firstChild->visibleOrder + 1;
3486
3487 int visible_pos = item->visibleOrder
3488 - infoPtr->firstVisible->visibleOrder;
3489
3490 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3491
3492 if (visible_pos > 0 && nChildren > rows_below)
3493 {
3494 int scroll = nChildren - rows_below;
3495
3496 if (scroll > visible_pos)
3497 scroll = visible_pos;
3498
3499 if (scroll > 0)
3500 {
3501 TREEVIEW_ITEM *newFirstVisible
3502 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3503 scroll);
3504
3505
3506 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3507 }
3508 }
3509 }
3510 }
3511
3512 if (sendsNotifications) {
3513 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3514 item->state |= TVIS_EXPANDEDONCE;
3515 }
3516
3517 return TRUE;
3518 }
3519
3520 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3521 to mouse messages and TVM_SELECTITEM.
3522
3523 selection - previously selected item, used to collapse a part of a tree
3524 item - new selected item
3525 */
3526 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3527 HTREEITEM selection, HTREEITEM item)
3528 {
3529 TREEVIEW_ITEM *prev, *curr;
3530
3531 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3532
3533 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3534
3535 /*
3536 * Close the previous item and its ancestors as long as they are not
3537 * ancestors of the current item
3538 */
3539 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3540 {
3541 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3542 {
3543 if (curr == prev)
3544 goto finish;
3545 }
3546 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3547 }
3548
3549 finish:
3550 /*
3551 * Expand the current item
3552 */
3553 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3554 }
3555
3556 static BOOL
3557 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3558 {
3559 TRACE("item=%p, user=%d\n", item, user);
3560
3561 if (item->state & TVIS_EXPANDED)
3562 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3563 else
3564 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3565 }
3566
3567 static VOID
3568 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3569 {
3570 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3571
3572 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3573 {
3574 if (TREEVIEW_HasChildren(infoPtr, item))
3575 TREEVIEW_ExpandAll(infoPtr, item);
3576 }
3577 }
3578
3579 /* Note:If the specified item is the child of a collapsed parent item,
3580 the parent's list of child items is (recursively) expanded to reveal the
3581 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3582 know if it also applies here.
3583 */
3584
3585 static LRESULT
3586 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3587 {
3588 if (!TREEVIEW_ValidItem(infoPtr, item))
3589 return 0;
3590
3591 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3592 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3593 flag, item->state);
3594
3595 switch (flag & TVE_TOGGLE)
3596 {
3597 case TVE_COLLAPSE:
3598 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3599 FALSE);
3600
3601 case TVE_EXPAND:
3602 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3603 FALSE);
3604
3605 case TVE_TOGGLE:
3606 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3607
3608 default:
3609 return 0;
3610 }
3611 }
3612
3613 /* Hit-Testing **********************************************************/
3614
3615 static TREEVIEW_ITEM *
3616 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3617 {
3618 TREEVIEW_ITEM *item;
3619 LONG row;
3620
3621 if (!infoPtr->firstVisible)
3622 return NULL;
3623
3624 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3625
3626 for (item = infoPtr->firstVisible; item != NULL;
3627 item = TREEVIEW_GetNextListItem(infoPtr, item))
3628 {
3629 if (row >= item->visibleOrder
3630 && row < item->visibleOrder + item->iIntegral)
3631 break;
3632 }
3633
3634 return item;
3635 }
3636
3637 static LRESULT
3638 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3639 {
3640 TREEVIEW_ITEM *item;
3641 RECT rect;
3642 UINT status;
3643 LONG x, y;
3644
3645 lpht->hItem = 0;
3646 GetClientRect(infoPtr->hwnd, &rect);
3647 status = 0;
3648 x = lpht->pt.x;
3649 y = lpht->pt.y;
3650
3651 if (x < rect.left)
3652 {
3653 status |= TVHT_TOLEFT;
3654 }
3655 else if (x > rect.right)
3656 {
3657 status |= TVHT_TORIGHT;
3658 }
3659
3660 if (y < rect.top)
3661 {
3662 status |= TVHT_ABOVE;
3663 }
3664 else if (y > rect.bottom)
3665 {
3666 status |= TVHT_BELOW;
3667 }
3668
3669 if (status)
3670 {
3671 lpht->flags = status;
3672 return 0;
3673 }
3674
3675 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3676 if (!item)
3677 {
3678 lpht->flags = TVHT_NOWHERE;
3679 return 0;
3680 }
3681
3682 if (x >= item->textOffset + item->textWidth)
3683 {
3684 lpht->flags = TVHT_ONITEMRIGHT;
3685 }
3686 else if (x >= item->textOffset)
3687 {
3688 lpht->flags = TVHT_ONITEMLABEL;
3689 }
3690 else if (x >= item->imageOffset)
3691 {
3692 lpht->flags = TVHT_ONITEMICON;
3693 }
3694 else if (x >= item->stateOffset)
3695 {
3696 lpht->flags = TVHT_ONITEMSTATEICON;
3697 }
3698 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3699 {
3700 lpht->flags = TVHT_ONITEMBUTTON;
3701 }
3702 else
3703 {
3704 lpht->flags = TVHT_ONITEMINDENT;
3705 }
3706
3707 lpht->hItem = item;
3708 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3709
3710 return (LRESULT)item;
3711 }
3712
3713 /* Item Label Editing ***************************************************/
3714
3715 static LRESULT
3716 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3717 {
3718 return (LRESULT)infoPtr->hwndEdit;
3719 }
3720
3721 static LRESULT CALLBACK
3722 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3723 {
3724 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3725 BOOL bCancel = FALSE;
3726 LRESULT rc;
3727
3728 switch (uMsg)
3729 {
3730 case WM_PAINT:
3731 TRACE("WM_PAINT start\n");
3732 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3733 lParam);
3734 TRACE("WM_PAINT done\n");
3735 return rc;
3736
3737 case WM_KILLFOCUS:
3738 if (infoPtr->bIgnoreEditKillFocus)
3739 return TRUE;
3740 break;
3741
3742 case WM_DESTROY:
3743 {
3744 WNDPROC editProc = infoPtr->wpEditOrig;
3745 infoPtr->wpEditOrig = 0;
3746 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3747 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3748 }
3749
3750 case WM_GETDLGCODE:
3751 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3752
3753 case WM_KEYDOWN:
3754 if (wParam == VK_ESCAPE)
3755 {
3756 bCancel = TRUE;
3757 break;
3758 }
3759 else if (wParam == VK_RETURN)
3760 {
3761 break;
3762 }
3763
3764 /* fall through */
3765 default:
3766 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3767 }
3768
3769 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3770 /* eg. Using a messagebox */
3771
3772 infoPtr->bIgnoreEditKillFocus = TRUE;
3773 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3774 infoPtr->bIgnoreEditKillFocus = FALSE;
3775
3776 return 0;
3777 }
3778
3779
3780 /* should handle edit control messages here */
3781
3782 static LRESULT
3783 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3784 {
3785 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3786
3787 switch (HIWORD(wParam))
3788 {
3789 case EN_UPDATE:
3790 {
3791 /*
3792 * Adjust the edit window size
3793 */
3794 WCHAR buffer[1024];
3795 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3796 HDC hdc = GetDC(infoPtr->hwndEdit);
3797 SIZE sz;
3798 HFONT hFont, hOldFont = 0;
3799
3800 TRACE("edit=%p\n", infoPtr->hwndEdit);
3801
3802 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3803
3804 infoPtr->bLabelChanged = TRUE;
3805
3806 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3807
3808 /* Select font to get the right dimension of the string */
3809 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3810
3811 if (hFont != 0)
3812 {
3813 hOldFont = SelectObject(hdc, hFont);
3814 }
3815
3816 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3817 {
3818 TEXTMETRICW textMetric;
3819
3820 /* Add Extra spacing for the next character */
3821 GetTextMetricsW(hdc, &textMetric);
3822 sz.cx += (textMetric.tmMaxCharWidth * 2);
3823
3824 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3825 sz.cx = min(sz.cx,
3826 infoPtr->clientWidth - editItem->textOffset + 2);
3827
3828 SetWindowPos(infoPtr->hwndEdit,
3829 HWND_TOP,
3830 0,
3831 0,
3832 sz.cx,
3833 editItem->rect.bottom - editItem->rect.top + 3,
3834 SWP_NOMOVE | SWP_DRAWFRAME);
3835 }
3836
3837 if (hFont != 0)
3838 {
3839 SelectObject(hdc, hOldFont);
3840 }
3841
3842 ReleaseDC(infoPtr->hwnd, hdc);
3843 break;
3844 }
3845 case EN_KILLFOCUS:
3846 /* apparently we should respect passed handle value */
3847 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3848
3849 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3850 break;
3851
3852 default:
3853 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3854 }
3855
3856 return 0;
3857 }
3858
3859 static HWND
3860 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3861 {
3862 HWND hwnd = infoPtr->hwnd;
3863 HWND hwndEdit;
3864 SIZE sz;
3865 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3866 HDC hdc;
3867 HFONT hOldFont=0;
3868 TEXTMETRICW textMetric;
3869
3870 TRACE("%p %p\n", hwnd, hItem);
3871 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3872 return NULL;
3873
3874 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3875 return NULL;
3876
3877 if (infoPtr->hwndEdit)
3878 return infoPtr->hwndEdit;
3879
3880 infoPtr->bLabelChanged = FALSE;
3881
3882 /* make edit item visible */
3883 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3884
3885 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3886
3887 hdc = GetDC(hwnd);
3888 /* Select the font to get appropriate metric dimensions */
3889 if (infoPtr->hFont != 0)
3890 {
3891 hOldFont = SelectObject(hdc, infoPtr->hFont);
3892 }
3893
3894 /* Get string length in pixels */
3895 if (hItem->pszText)
3896 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3897 &sz);
3898 else
3899 GetTextExtentPoint32A(hdc, "", 0, &sz);
3900
3901 /* Add Extra spacing for the next character */
3902 GetTextMetricsW(hdc, &textMetric);
3903 sz.cx += (textMetric.tmMaxCharWidth * 2);
3904
3905 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3906 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3907
3908 if (infoPtr->hFont != 0)
3909 {
3910 SelectObject(hdc, hOldFont);
3911 }
3912
3913 ReleaseDC(hwnd, hdc);
3914
3915 infoPtr->editItem = hItem;
3916
3917 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3918 WC_EDITW,
3919 0,
3920 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3921 WS_CLIPSIBLINGS | ES_WANTRETURN |
3922 ES_LEFT, hItem->textOffset - 2,
3923 hItem->rect.top - 1, sz.cx + 3,
3924 hItem->rect.bottom -
3925 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3926 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3927
3928 infoPtr->hwndEdit = hwndEdit;
3929
3930 /* Get a 2D border. */
3931 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3932 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3933 SetWindowLongW(hwndEdit, GWL_STYLE,
3934 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3935
3936 SendMessageW(hwndEdit, WM_SETFONT,
3937 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3938
3939 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3940 (DWORD_PTR)
3941 TREEVIEW_Edit_SubclassProc);
3942 if (hItem->pszText)
3943 SetWindowTextW(hwndEdit, hItem->pszText);
3944
3945 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3946 {
3947 DestroyWindow(hwndEdit);
3948 infoPtr->hwndEdit = 0;
3949 infoPtr->editItem = NULL;
3950 return NULL;
3951 }
3952
3953 SetFocus(hwndEdit);
3954 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3955 ShowWindow(hwndEdit, SW_SHOW);
3956
3957 return hwndEdit;
3958 }
3959
3960
3961 static LRESULT
3962 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3963 {
3964 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3965 NMTVDISPINFOW tvdi;
3966 BOOL bCommit;
3967 WCHAR tmpText[1024] = { '\0' };
3968 WCHAR *newText = tmpText;
3969 int iLength = 0;
3970
3971 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3972
3973 tvdi.item.mask = 0;
3974 tvdi.item.hItem = editedItem;
3975 tvdi.item.state = editedItem->state;
3976 tvdi.item.lParam = editedItem->lParam;
3977
3978 if (!bCancel)
3979 {
3980 if (!infoPtr->bNtfUnicode)
3981 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3982 else
3983 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3984
3985 if (iLength >= 1023)
3986 {
3987 ERR("Insufficient space to retrieve new item label\n");
3988 }
3989
3990 tvdi.item.mask = TVIF_TEXT;
3991 tvdi.item.pszText = tmpText;
3992 tvdi.item.cchTextMax = iLength + 1;
3993 }
3994 else
3995 {
3996 tvdi.item.pszText = NULL;
3997 tvdi.item.cchTextMax = 0;
3998 }
3999
4000 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4001
4002 if (!bCancel && bCommit) /* Apply the changes */
4003 {
4004 if (!infoPtr->bNtfUnicode)
4005 {
4006 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4007 newText = Alloc(len * sizeof(WCHAR));
4008 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4009 iLength = len - 1;
4010 }
4011
4012 if (strcmpW(newText, editedItem->pszText) != 0)
4013 {
4014 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4015 if (ptr == NULL)
4016 {
4017 ERR("OutOfMemory, cannot allocate space for label\n");
4018 if(newText != tmpText) Free(newText);
4019 DestroyWindow(infoPtr->hwndEdit);
4020 infoPtr->hwndEdit = 0;
4021 infoPtr->editItem = NULL;
4022 return FALSE;
4023 }
4024 else
4025 {
4026 editedItem->pszText = ptr;
4027 editedItem->cchTextMax = iLength + 1;
4028 strcpyW(editedItem->pszText, newText);
4029 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4030 }
4031 }
4032 if(newText != tmpText) Free(newText);
4033 }
4034
4035 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4036 DestroyWindow(infoPtr->hwndEdit);
4037 infoPtr->hwndEdit = 0;
4038 infoPtr->editItem = NULL;
4039 return TRUE;
4040 }
4041
4042 static LRESULT
4043 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4044 {
4045 if (wParam != TV_EDIT_TIMER)
4046 {
4047 ERR("got unknown timer\n");
4048 return 1;
4049 }
4050
4051 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4052 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4053
4054 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4055
4056 return 0;
4057 }
4058
4059
4060 /* Mouse Tracking/Drag **************************************************/
4061
4062 /***************************************************************************
4063 * This is quite unusual piece of code, but that's how it's implemented in
4064 * Windows.
4065 */
4066 static LRESULT
4067 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4068 {
4069 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4070 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4071 RECT r;
4072 MSG msg;
4073
4074 r.top = pt.y - cyDrag;
4075 r.left = pt.x - cxDrag;
4076 r.bottom = pt.y + cyDrag;
4077 r.right = pt.x + cxDrag;
4078
4079 SetCapture(infoPtr->hwnd);
4080
4081 while (1)
4082 {
4083 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4084 {
4085 if (msg.message == WM_MOUSEMOVE)
4086 {
4087 pt.x = (short)LOWORD(msg.lParam);
4088 pt.y = (short)HIWORD(msg.lParam);
4089 if (PtInRect(&r, pt))
4090 continue;
4091 else
4092 {
4093 ReleaseCapture();
4094 return 1;
4095 }
4096 }
4097 else if (msg.message >= WM_LBUTTONDOWN &&
4098 msg.message <= WM_RBUTTONDBLCLK)
4099 {
4100 break;
4101 }
4102
4103 DispatchMessageW(&msg);
4104 }
4105
4106 if (GetCapture() != infoPtr->hwnd)
4107 return 0;
4108 }
4109
4110 ReleaseCapture();
4111 return 0;
4112 }
4113
4114
4115 static LRESULT
4116 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4117 {
4118 TREEVIEW_ITEM *item;
4119 TVHITTESTINFO hit;
4120
4121 TRACE("\n");
4122 SetFocus(infoPtr->hwnd);
4123
4124 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4125 {
4126 /* If there is pending 'edit label' event - kill it now */
4127 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4128 }
4129
4130 hit.pt.x = (short)LOWORD(lParam);
4131 hit.pt.y = (short)HIWORD(lParam);
4132
4133 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4134 if (!item)
4135 return 0;
4136 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4137
4138 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4139 { /* FIXME! */
4140 switch (hit.flags)
4141 {
4142 case TVHT_ONITEMRIGHT:
4143 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4144 break;
4145
4146 case TVHT_ONITEMINDENT:
4147 if (!(infoPtr->dwStyle & TVS_HASLINES))
4148 {
4149 break;
4150 }
4151 else
4152 {
4153 int level = hit.pt.x / infoPtr->uIndent;
4154 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4155
4156 while (item->iLevel > level)
4157 {
4158 item = item->parent;
4159 }
4160
4161 /* fall through */
4162 }
4163
4164 case TVHT_ONITEMLABEL:
4165 case TVHT_ONITEMICON:
4166 case TVHT_ONITEMBUTTON:
4167 TREEVIEW_Toggle(infoPtr, item, TRUE);
4168 break;
4169
4170 case TVHT_ONITEMSTATEICON:
4171 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4172 TREEVIEW_ToggleItemState(infoPtr, item);
4173 else
4174 TREEVIEW_Toggle(infoPtr, item, TRUE);
4175 break;
4176 }
4177 }
4178 return TRUE;
4179 }
4180
4181
4182 static LRESULT
4183 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4184 {
4185 HWND hwnd = infoPtr->hwnd;
4186 TVHITTESTINFO ht;
4187 BOOL bTrack, bDoLabelEdit;
4188
4189 /* If Edit control is active - kill it and return.
4190 * The best way to do it is to set focus to itself.
4191 * Edit control subclassed procedure will automatically call
4192 * EndEditLabelNow.
4193 */
4194 if (infoPtr->hwndEdit)
4195 {
4196 SetFocus(hwnd);
4197 return 0;
4198 }
4199
4200 ht.pt.x = (short)LOWORD(lParam);
4201 ht.pt.y = (short)HIWORD(lParam);
4202
4203 TREEVIEW_HitTest(infoPtr, &ht);
4204 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4205
4206 /* update focusedItem and redraw both items */
4207 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4208 {
4209 infoPtr->focusedItem = ht.hItem;
4210 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4211 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4212 }
4213
4214 bTrack = (ht.flags & TVHT_ONITEM)
4215 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4216
4217 /*
4218 * If the style allows editing and the node is already selected
4219 * and the click occurred on the item label...
4220 */
4221 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4222 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4223
4224 /* Send NM_CLICK right away */
4225 if (!bTrack)
4226 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4227 goto setfocus;
4228
4229 if (ht.flags & TVHT_ONITEMBUTTON)
4230 {
4231 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4232 goto setfocus;
4233 }
4234 else if (bTrack)
4235 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4236 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4237 {
4238 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4239 infoPtr->dropItem = ht.hItem;
4240
4241 /* clean up focusedItem as we dragged and won't select this item */
4242 if(infoPtr->focusedItem)
4243 {
4244 /* refresh the item that was focused */
4245 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4246 infoPtr->focusedItem = NULL;
4247
4248 /* refresh the selected item to return the filled background */
4249 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4250 }
4251
4252 return 0;
4253 }
4254 }
4255
4256 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4257 goto setfocus;
4258
4259 if (bDoLabelEdit)
4260 {
4261 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4262 KillTimer(hwnd, TV_EDIT_TIMER);
4263
4264 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4265 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4266 }
4267 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4268 {
4269 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4270
4271 /* Select the current item */
4272 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4273 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4274 }
4275 else if (ht.flags & TVHT_ONITEMSTATEICON)
4276 {
4277 /* TVS_CHECKBOXES requires us to toggle the current state */
4278 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4279 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4280 }
4281
4282 setfocus:
4283 SetFocus(hwnd);
4284 return 0;
4285 }
4286
4287
4288 static LRESULT
4289 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4290 {
4291 TVHITTESTINFO ht;
4292
4293 if (infoPtr->hwndEdit)
4294 {
4295 SetFocus(infoPtr->hwnd);
4296 return 0;
4297 }
4298
4299 ht.pt.x = (short)LOWORD(lParam);
4300 ht.pt.y = (short)HIWORD(lParam);
4301
4302 TREEVIEW_HitTest(infoPtr, &ht);
4303
4304 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4305 {
4306 if (ht.hItem)
4307 {
4308 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4309 infoPtr->dropItem = ht.hItem;
4310 }
4311 }
4312 else
4313 {
4314 SetFocus(infoPtr->hwnd);
4315 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4316 {
4317 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4318 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4319 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4320 }
4321 }
4322
4323 return 0;
4324 }
4325
4326 static LRESULT
4327 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4328 {
4329 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4330 INT cx, cy;
4331 HDC hdc, htopdc;
4332 HWND hwtop;
4333 HBITMAP hbmp, hOldbmp;
4334 SIZE size;
4335 RECT rc;
4336 HFONT hOldFont;
4337
4338 TRACE("\n");
4339
4340 if (!(infoPtr->himlNormal))
4341 return 0;
4342
4343 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4344 return 0;
4345
4346 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4347
4348 hwtop = GetDesktopWindow();
4349 htopdc = GetDC(hwtop);
4350 hdc = CreateCompatibleDC(htopdc);
4351
4352 hOldFont = SelectObject(hdc, infoPtr->hFont);
4353
4354 if (dragItem->pszText)
4355 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4356 &size);
4357 else
4358 GetTextExtentPoint32A(hdc, "", 0, &size);
4359
4360 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4361 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4362 hOldbmp = SelectObject(hdc, hbmp);
4363
4364 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4365 size.cx += cx;
4366 if (cy > size.cy)
4367 size.cy = cy;
4368
4369 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4370 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4371 ILD_NORMAL);
4372
4373 /*
4374 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4375 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4376 */
4377
4378 /* draw item text */
4379
4380 SetRect(&rc, cx, 0, size.cx, size.cy);
4381
4382 if (dragItem->pszText)
4383 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4384 DT_LEFT);
4385
4386 SelectObject(hdc, hOldFont);
4387 SelectObject(hdc, hOldbmp);
4388
4389 ImageList_Add(infoPtr->dragList, hbmp, 0);
4390
4391 DeleteDC(hdc);
4392 DeleteObject(hbmp);
4393 ReleaseDC(hwtop, htopdc);
4394
4395 return (LRESULT)infoPtr->dragList;
4396 }
4397
4398 /* Selection ************************************************************/
4399
4400 static LRESULT
4401 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4402 INT cause)
4403 {
4404 TREEVIEW_ITEM *prevSelect;
4405
4406 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4407
4408 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state %d\n",
4409 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4410 newSelect ? newSelect->state : 0);
4411
4412 /* reset and redraw focusedItem if focusedItem was set so we don't */
4413 /* have to worry about the previously focused item when we set a new one */
4414 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4415 infoPtr->focusedItem = NULL;
4416
4417 switch (action)
4418 {
4419 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4420 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4421 /* Fall through */
4422 case TVGN_CARET:
4423 prevSelect = infoPtr->selectedItem;
4424
4425 if (prevSelect == newSelect) {
4426 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4427 break;
4428 }
4429
4430 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4431 TVN_SELCHANGINGW,
4432 cause,
4433 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4434 prevSelect,
4435 newSelect))
4436 return FALSE;
4437
4438 if (prevSelect)
4439 prevSelect->state &= ~TVIS_SELECTED;
4440 if (newSelect)
4441 newSelect->state |= TVIS_SELECTED;
4442
4443 infoPtr->selectedItem = newSelect;
4444
4445 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4446
4447 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4448 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4449
4450 TREEVIEW_SendTreeviewNotify(infoPtr,
4451 TVN_SELCHANGEDW,
4452 cause,
4453 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4454 prevSelect,
4455 newSelect);
4456 break;
4457
4458 case TVGN_DROPHILITE:
4459 prevSelect = infoPtr->dropItem;
4460
4461 if (prevSelect)
4462 prevSelect->state &= ~TVIS_DROPHILITED;
4463
4464 infoPtr->dropItem = newSelect;
4465
4466 if (newSelect)
4467 newSelect->state |= TVIS_DROPHILITED;
4468
4469 TREEVIEW_Invalidate(infoPtr, prevSelect);
4470 TREEVIEW_Invalidate(infoPtr, newSelect);
4471 break;
4472
4473 case TVGN_FIRSTVISIBLE:
4474 if (newSelect != NULL)
4475 {
4476 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4477 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4478 TREEVIEW_Invalidate(infoPtr, NULL);
4479 }
4480 break;
4481 }
4482
4483 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4484 return TRUE;
4485 }
4486
4487 /* FIXME: handle NM_KILLFOCUS etc */
4488 static LRESULT
4489 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4490 {
4491 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4492
4493 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4494 return FALSE;
4495
4496 if (item == infoPtr->selectedItem)
4497 return TRUE;
4498
4499 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4500
4501 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4502 return FALSE;
4503
4504 TREEVIEW_SingleExpand(infoPtr, selection, item);
4505
4506 return TRUE;
4507 }
4508
4509 /*************************************************************************
4510 * TREEVIEW_ProcessLetterKeys
4511 *
4512 * Processes keyboard messages generated by pressing the letter keys
4513 * on the keyboard.
4514 * What this does is perform a case insensitive search from the
4515 * current position with the following quirks:
4516 * - If two chars or more are pressed in quick succession we search
4517 * for the corresponding string (e.g. 'abc').
4518 * - If there is a delay we wipe away the current search string and
4519 * restart with just that char.
4520 * - If the user keeps pressing the same character, whether slowly or
4521 * fast, so that the search string is entirely composed of this
4522 * character ('aaaaa' for instance), then we search for first item
4523 * that starting with that character.
4524 * - If the user types the above character in quick succession, then
4525 * we must also search for the corresponding string ('aaaaa'), and
4526 * go to that string if there is a match.
4527 *
4528 * RETURNS
4529 *
4530 * Zero.
4531 *
4532 * BUGS
4533 *
4534 * - The current implementation has a list of characters it will
4535 * accept and it ignores everything else. In particular it will
4536 * ignore accentuated characters which seems to match what
4537 * Windows does. But I'm not sure it makes sense to follow
4538 * Windows there.
4539 * - We don't sound a beep when the search fails.
4540 * - The search should start from the focused item, not from the selected
4541 * item. One reason for this is to allow for multiple selections in trees.
4542 * But currently infoPtr->focusedItem does not seem very usable.
4543 *
4544 * SEE ALSO
4545 *
4546 * TREEVIEW_ProcessLetterKeys
4547 */
4548 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4549 {
4550 HTREEITEM nItem;
4551 HTREEITEM endidx,idx;
4552 TVITEMEXW item;
4553 WCHAR buffer[MAX_PATH];
4554 DWORD timestamp,elapsed;
4555
4556 /* simple parameter checking */
4557 if (!charCode || !keyData) return 0;
4558
4559 /* only allow the valid WM_CHARs through */
4560 if (!isalnum(charCode) &&
4561 charCode != '.' && charCode != '`' && charCode != '!' &&
4562 charCode != '@' && charCode != '#' && charCode != '$' &&
4563 charCode != '%' && charCode != '^' && charCode != '&' &&
4564 charCode != '*' && charCode != '(' && charCode != ')' &&
4565 charCode != '-' && charCode != '_' && charCode != '+' &&
4566 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4567 charCode != '}' && charCode != '[' && charCode != '{' &&
4568 charCode != '/' && charCode != '?' && charCode != '>' &&
4569 charCode != '<' && charCode != ',' && charCode != '~')
4570 return 0;
4571
4572 /* compute how much time elapsed since last keypress */
4573 timestamp = GetTickCount();
4574 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4575 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4576 } else {
4577 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4578 }
4579
4580 /* update the search parameters */
4581 infoPtr->lastKeyPressTimestamp=timestamp;
4582 if (elapsed < KEY_DELAY) {
4583 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4584 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4585 }
4586 if (infoPtr->charCode != charCode) {
4587 infoPtr->charCode=charCode=0;
4588 }
4589 } else {
4590 infoPtr->charCode=charCode;
4591 infoPtr->szSearchParam[0]=charCode;
4592 infoPtr->nSearchParamLength=1;
4593 /* Redundant with the 1 char string */
4594 charCode=0;
4595 }
4596
4597 /* and search from the current position */
4598 nItem=NULL;
4599 if (infoPtr->selectedItem != NULL) {
4600 endidx=infoPtr->selectedItem;
4601 /* if looking for single character match,
4602 * then we must always move forward
4603 */
4604 if (infoPtr->nSearchParamLength == 1)
4605 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4606 else
4607 idx=endidx;
4608 } else {
4609 endidx=NULL;
4610 idx=infoPtr->root->firstChild;
4611 }
4612 do {
4613 /* At the end point, sort out wrapping */
4614 if (idx == NULL) {
4615
4616 /* If endidx is null, stop at the last item (ie top to bottom) */
4617 if (endidx == NULL)
4618 break;
4619
4620 /* Otherwise, start again at the very beginning */
4621 idx=infoPtr->root->firstChild;
4622
4623 /* But if we are stopping on the first child, end now! */
4624 if (idx == endidx) break;
4625 }
4626
4627 /* get item */
4628 ZeroMemory(&item, sizeof(item));
4629 item.mask = TVIF_TEXT;
4630 item.hItem = idx;
4631 item.pszText = buffer;
4632 item.cchTextMax = sizeof(buffer);
4633 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4634
4635 /* check for a match */
4636 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4637 nItem=idx;
4638 break;
4639 } else if ( (charCode != 0) && (nItem == NULL) &&
4640 (nItem != infoPtr->selectedItem) &&
4641 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4642 /* This would work but we must keep looking for a longer match */
4643 nItem=idx;
4644 }
4645 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4646 } while (idx != endidx);
4647
4648 if (nItem != NULL) {
4649 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4650 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4651 }
4652 }
4653
4654 return 0;
4655 }
4656
4657 /* Scrolling ************************************************************/
4658
4659 static LRESULT
4660 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4661 {
4662 int viscount;
4663 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4664 HTREEITEM newFirstVisible = NULL;
4665 int visible_pos = -1;
4666
4667 if (!TREEVIEW_ValidItem(infoPtr, item))
4668 return FALSE;
4669
4670 if (!ISVISIBLE(item))
4671 {
4672 /* Expand parents as necessary. */
4673 HTREEITEM parent;
4674
4675 /* see if we are trying to ensure that root is visible */
4676 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4677 parent = item->parent;
4678 else
4679 parent = item; /* this item is the topmost item */
4680
4681 while (parent != infoPtr->root)
4682 {
4683 if (!(parent->state & TVIS_EXPANDED))
4684 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4685
4686 parent = parent->parent;
4687 }
4688 }
4689
4690 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4691
4692 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4693 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4694
4695 if (hasFirstVisible)
4696 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4697
4698 if (visible_pos < 0)
4699 {
4700 /* item is before the start of the list: put it at the top. */
4701 newFirstVisible = item;
4702 }
4703 else if (visible_pos >= viscount
4704 /* Sometimes, before we are displayed, GVC is 0, causing us to
4705 * spuriously scroll up. */
4706 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4707 {
4708 /* item is past the end of the list. */
4709 int scroll = visible_pos - viscount;
4710
4711 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4712 scroll + 1);
4713 }
4714
4715 if (bHScroll)
4716 {
4717 /* Scroll window so item's text is visible as much as possible */
4718 /* Calculation of amount of extra space is taken from EditLabel code */
4719 INT pos, x;
4720 TEXTMETRICW textMetric;
4721 HDC hdc = GetWindowDC(infoPtr->hwnd);
4722
4723 x = item->textWidth;
4724
4725 GetTextMetricsW(hdc, &textMetric);
4726 ReleaseDC(infoPtr->hwnd, hdc);
4727
4728 x += (textMetric.tmMaxCharWidth * 2);
4729 x = max(x, textMetric.tmMaxCharWidth * 3);
4730
4731 if (item->textOffset < 0)
4732 pos = item->textOffset;
4733 else if (item->textOffset + x > infoPtr->clientWidth)
4734 {
4735 if (x > infoPtr->clientWidth)
4736 pos = item->textOffset;
4737 else
4738 pos = item->textOffset + x - infoPtr->clientWidth;
4739 }
4740 else
4741 pos = 0;
4742
4743 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4744 }
4745
4746 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4747 {
4748 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4749
4750 return TRUE;
4751 }
4752
4753 return FALSE;
4754 }
4755
4756 static VOID
4757 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4758 TREEVIEW_ITEM *newFirstVisible,
4759 BOOL bUpdateScrollPos)
4760 {
4761 int gap_size;
4762
4763 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4764
4765 if (newFirstVisible != NULL)
4766 {
4767 /* Prevent an empty gap from appearing at the bottom... */
4768 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4769 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4770
4771 if (gap_size > 0)
4772 {
4773 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4774 -gap_size);
4775
4776 /* ... unless we just don't have enough items. */
4777 if (newFirstVisible == NULL)
4778 newFirstVisible = infoPtr->root->firstChild;
4779 }
4780 }
4781
4782 if (infoPtr->firstVisible != newFirstVisible)
4783 {
4784 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4785 {
4786 infoPtr->firstVisible = newFirstVisible;
4787 TREEVIEW_Invalidate(infoPtr, NULL);
4788 }
4789 else
4790 {
4791 TREEVIEW_ITEM *item;
4792 int scroll = infoPtr->uItemHeight *
4793 (infoPtr->firstVisible->visibleOrder
4794 - newFirstVisible->visibleOrder);
4795
4796 infoPtr->firstVisible = newFirstVisible;
4797
4798 for (item = infoPtr->root->firstChild; item != NULL;
4799 item = TREEVIEW_GetNextListItem(infoPtr, item))
4800 {
4801 item->rect.top += scroll;
4802 item->rect.bottom += scroll;
4803 }
4804
4805 if (bUpdateScrollPos)
4806 SetScrollPos(infoPtr->hwnd, SB_VERT,
4807 newFirstVisible->visibleOrder, TRUE);
4808
4809 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4810 }
4811 }
4812 }
4813
4814 /************************************************************************
4815 * VScroll is always in units of visible items. i.e. we always have a
4816 * visible item aligned to the top of the control. (Unless we have no
4817 * items at all.)
4818 */
4819 static LRESULT
4820 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4821 {
4822 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4823 TREEVIEW_ITEM *newFirstVisible = NULL;
4824
4825 int nScrollCode = LOWORD(wParam);
4826
4827 TRACE("wp %lx\n", wParam);
4828
4829 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4830 return 0;
4831
4832 if (!oldFirstVisible)
4833 {
4834 assert(infoPtr->root->firstChild == NULL);
4835 return 0;
4836 }
4837
4838 switch (nScrollCode)
4839 {
4840 case SB_TOP:
4841 newFirstVisible = infoPtr->root->firstChild;
4842 break;
4843
4844 case SB_BOTTOM:
4845 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4846 break;
4847
4848 case SB_LINEUP:
4849 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4850 break;
4851
4852 case SB_LINEDOWN:
4853 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4854 break;
4855
4856 case SB_PAGEUP:
4857 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4858 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4859 break;
4860
4861 case SB_PAGEDOWN:
4862 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4863 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4864 break;
4865
4866 case SB_THUMBTRACK:
4867 case SB_THUMBPOSITION:
4868 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4869 infoPtr->root->firstChild,
4870 (LONG)(SHORT)HIWORD(wParam));
4871 break;
4872
4873 case SB_ENDSCROLL:
4874 return 0;
4875 }
4876
4877 if (newFirstVisible != NULL)
4878 {
4879 if (newFirstVisible != oldFirstVisible)
4880 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4881 nScrollCode != SB_THUMBTRACK);
4882 else if (nScrollCode == SB_THUMBPOSITION)
4883 SetScrollPos(infoPtr->hwnd, SB_VERT,
4884 newFirstVisible->visibleOrder, TRUE);
4885 }
4886
4887 return 0;
4888 }
4889
4890 static LRESULT
4891 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4892 {
4893 int maxWidth;
4894 int scrollX = infoPtr->scrollX;
4895 int nScrollCode = LOWORD(wParam);
4896
4897 TRACE("wp %lx\n", wParam);
4898
4899 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4900 return FALSE;
4901
4902 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4903 /* shall never occur */
4904 if (maxWidth <= 0)
4905 {
4906 scrollX = 0;
4907 goto scroll;
4908 }
4909
4910 switch (nScrollCode)
4911 {
4912 case SB_LINELEFT:
4913 scrollX -= infoPtr->uItemHeight;
4914 break;
4915 case SB_LINERIGHT:
4916 scrollX += infoPtr->uItemHeight;
4917 break;
4918 case SB_PAGELEFT:
4919 scrollX -= infoPtr->clientWidth;
4920 break;
4921 case SB_PAGERIGHT:
4922 scrollX += infoPtr->clientWidth;
4923 break;
4924
4925 case SB_THUMBTRACK:
4926 case SB_THUMBPOSITION:
4927 scrollX = (int)(SHORT)HIWORD(wParam);
4928 break;
4929
4930 case SB_ENDSCROLL:
4931 return 0;
4932 }
4933
4934 if (scrollX > maxWidth)
4935 scrollX = maxWidth;
4936 else if (scrollX < 0)
4937 scrollX = 0;
4938
4939 scroll:
4940 if (scrollX != infoPtr->scrollX)
4941 {
4942 TREEVIEW_ITEM *item;
4943 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4944
4945 for (item = infoPtr->root->firstChild; item != NULL;
4946 item = TREEVIEW_GetNextListItem(infoPtr, item))
4947 {
4948 item->linesOffset += scroll_pixels;
4949 item->stateOffset += scroll_pixels;
4950 item->imageOffset += scroll_pixels;
4951 item->textOffset += scroll_pixels;
4952 }
4953
4954 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4955 infoPtr->scrollX = scrollX;
4956 UpdateWindow(infoPtr->hwnd);
4957 }
4958
4959 if (nScrollCode != SB_THUMBTRACK)
4960 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4961
4962 return 0;
4963 }
4964
4965 static LRESULT
4966 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4967 {
4968 short wheelDelta;
4969 UINT pulScrollLines = 3;
4970
4971 if (wParam & (MK_SHIFT | MK_CONTROL))
4972 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4973
4974 if (infoPtr->firstVisible == NULL)
4975 return TRUE;
4976
4977 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4978
4979 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
4980 /* if scrolling changes direction, ignore left overs */
4981 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
4982 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
4983 infoPtr->wheelRemainder += wheelDelta;
4984 else
4985 infoPtr->wheelRemainder = wheelDelta;
4986
4987 if (infoPtr->wheelRemainder && pulScrollLines)
4988 {
4989 int newDy;
4990 int maxDy;
4991 int lineScroll;
4992
4993 lineScroll = pulScrollLines * (float)infoPtr->wheelRemainder / WHEEL_DELTA;
4994 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / (int)pulScrollLines;
4995
4996 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
4997 maxDy = infoPtr->maxVisibleOrder;
4998
4999 if (newDy > maxDy)
5000 newDy = maxDy;
5001
5002 if (newDy < 0)
5003 newDy = 0;
5004
5005 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5006 }
5007 return TRUE;
5008 }
5009
5010 /* Create/Destroy *******************************************************/
5011
5012 static LRESULT
5013 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5014 {
5015 RECT rcClient;
5016 TREEVIEW_INFO *infoPtr;
5017 LOGFONTW lf;
5018
5019 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5020
5021 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5022
5023 if (infoPtr == NULL)
5024 {
5025 ERR("could not allocate info memory!\n");
5026 return 0;
5027 }
5028
5029 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5030
5031 infoPtr->hwnd = hwnd;
5032 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5033 infoPtr->Timer = 0;
5034 infoPtr->uNumItems = 0;
5035 infoPtr->cdmode = 0;
5036 infoPtr->uScrollTime = 300; /* milliseconds */
5037 infoPtr->bRedraw = TRUE;
5038
5039 GetClientRect(hwnd, &rcClient);
5040
5041 /* No scroll bars yet. */
5042 infoPtr->clientWidth = rcClient.right;
5043 infoPtr->clientHeight = rcClient.bottom;
5044 infoPtr->uInternalStatus = 0;
5045
5046 infoPtr->treeWidth = 0;
5047 infoPtr->treeHeight = 0;
5048
5049 infoPtr->uIndent = MINIMUM_INDENT;
5050 infoPtr->selectedItem = NULL;
5051 infoPtr->focusedItem = NULL;
5052 infoPtr->hotItem = NULL;
5053 infoPtr->editItem = NULL;
5054 infoPtr->firstVisible = NULL;
5055 infoPtr->maxVisibleOrder = 0;
5056 infoPtr->dropItem = NULL;
5057 infoPtr->insertMarkItem = NULL;
5058 infoPtr->insertBeforeorAfter = 0;
5059 /* dragList */
5060
5061 infoPtr->scrollX = 0;
5062 infoPtr->wheelRemainder = 0;
5063
5064 infoPtr->clrBk = CLR_NONE; /* use system color */
5065 infoPtr->clrText = CLR_NONE; /* use system color */
5066 infoPtr->clrLine = CLR_DEFAULT;
5067 infoPtr->clrInsertMark = CLR_DEFAULT;
5068
5069 /* hwndToolTip */
5070
5071 infoPtr->hwndEdit = NULL;
5072 infoPtr->wpEditOrig = NULL;
5073 infoPtr->bIgnoreEditKillFocus = FALSE;
5074 infoPtr->bLabelChanged = FALSE;
5075
5076 infoPtr->himlNormal = NULL;
5077 infoPtr->himlState = NULL;
5078 infoPtr->normalImageWidth = 0;
5079 infoPtr->normalImageHeight = 0;
5080 infoPtr->stateImageWidth = 0;
5081 infoPtr->stateImageHeight = 0;
5082
5083 infoPtr->items = DPA_Create(16);
5084
5085 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5086 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5087 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5088 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5089 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5090 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5091
5092 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5093
5094 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5095 infoPtr->root->state = TVIS_EXPANDED;
5096 infoPtr->root->iLevel = -1;
5097 infoPtr->root->visibleOrder = -1;
5098
5099 infoPtr->hwndNotify = lpcs->hwndParent;
5100 infoPtr->hwndToolTip = 0;
5101
5102 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5103 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5104
5105 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5106 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5107 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5108 hwnd, 0, 0, 0);
5109
5110 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5111 ShowScrollBar(hwnd, SB_VERT, FALSE);
5112 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5113
5114 OpenThemeData (hwnd, themeClass);
5115
5116 return 0;
5117 }
5118
5119
5120 static LRESULT
5121 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5122 {
5123 TRACE("\n");
5124
5125 /* free item data */
5126 TREEVIEW_RemoveTree(infoPtr);
5127 /* root isn't freed with other items */
5128 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5129 DPA_Destroy(infoPtr->items);
5130
5131 /* tool tip is automatically destroyed: we are its owner */
5132
5133 /* Restore original wndproc */
5134 if (infoPtr->hwndEdit)
5135 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5136 (DWORD_PTR)infoPtr->wpEditOrig);
5137
5138 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5139
5140 /* Deassociate treeview from the window before doing anything drastic. */
5141 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5142
5143 DeleteObject(infoPtr->hDefaultFont);
5144 DeleteObject(infoPtr->hBoldFont);
5145 DeleteObject(infoPtr->hUnderlineFont);
5146 DeleteObject(infoPtr->hBoldUnderlineFont);
5147 Free(infoPtr);
5148
5149 return 0;
5150 }
5151
5152 /* Miscellaneous Messages ***********************************************/
5153
5154 static LRESULT
5155 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5156 {
5157 static const struct
5158 {
5159 unsigned char code;
5160 }
5161 scroll[] =
5162 {
5163 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5164 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5165 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5166 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5167 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5168 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5169 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5170 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5171 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5172 #undef SCROLL_ENTRY
5173 };
5174
5175 if (key >= VK_PRIOR && key <= VK_DOWN)
5176 {
5177 unsigned char code = scroll[key - VK_PRIOR].code;
5178
5179 (((code & (1 << 7)) == (SB_HORZ << 7))
5180 ? TREEVIEW_HScroll
5181 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5182 }
5183
5184 return 0;
5185 }
5186
5187 /************************************************************************
5188 * TREEVIEW_KeyDown
5189 *
5190 * VK_UP Move selection to the previous non-hidden item.
5191 * VK_DOWN Move selection to the next non-hidden item.
5192 * VK_HOME Move selection to the first item.
5193 * VK_END Move selection to the last item.
5194 * VK_LEFT If expanded then collapse, otherwise move to parent.
5195 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5196 * VK_ADD Expand.
5197 * VK_SUBTRACT Collapse.
5198 * VK_MULTIPLY Expand all.
5199 * VK_PRIOR Move up GetVisibleCount items.
5200 * VK_NEXT Move down GetVisibleCount items.
5201 * VK_BACK Move to parent.
5202 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5203 */
5204 static LRESULT
5205 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5206 {
5207 /* If it is non-NULL and different, it will be selected and visible. */
5208 TREEVIEW_ITEM *newSelection = NULL;
5209 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5210 NMTVKEYDOWN nmkeydown;
5211
5212 TRACE("%lx\n", wParam);
5213
5214 nmkeydown.wVKey = wParam;
5215 nmkeydown.flags = 0;
5216 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5217
5218 if (prevItem == NULL)
5219 return FALSE;
5220
5221 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5222 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5223
5224 switch (wParam)
5225 {
5226 case VK_UP:
5227 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5228 if (!newSelection)
5229 newSelection = infoPtr->root->firstChild;
5230 break;
5231
5232 case VK_DOWN:
5233 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5234 break;
5235
5236 case VK_RETURN:
5237 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5238 break;
5239
5240 case VK_HOME:
5241 newSelection = infoPtr->root->firstChild;
5242 break;
5243
5244 case VK_END:
5245 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5246 break;
5247
5248 case VK_LEFT:
5249 if (prevItem->state & TVIS_EXPANDED)
5250 {
5251 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5252 }
5253 else if (prevItem->parent != infoPtr->root)
5254 {
5255 newSelection = prevItem->parent;
5256 }
5257 break;
5258
5259 case VK_RIGHT:
5260 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5261 {
5262 if (!(prevItem->state & TVIS_EXPANDED))
5263 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5264 else
5265 {
5266 newSelection = prevItem->firstChild;
5267 }
5268 }
5269
5270 break;
5271
5272 case VK_MULTIPLY:
5273 TREEVIEW_ExpandAll(infoPtr, prevItem);
5274 break;
5275
5276 case VK_ADD:
5277 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5278 break;
5279
5280 case VK_SUBTRACT:
5281 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5282 break;
5283
5284 case VK_PRIOR:
5285 newSelection
5286 = TREEVIEW_GetListItem(infoPtr, prevItem,
5287 -TREEVIEW_GetVisibleCount(infoPtr));
5288 break;
5289
5290 case VK_NEXT:
5291 newSelection
5292 = TREEVIEW_GetListItem(infoPtr, prevItem,
5293 TREEVIEW_GetVisibleCount(infoPtr));
5294 break;
5295
5296 case VK_BACK:
5297 newSelection = prevItem->parent;
5298 if (newSelection == infoPtr->root)
5299 newSelection = NULL;
5300 break;
5301
5302 case VK_SPACE:
5303 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5304 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5305 break;
5306 }
5307
5308 if (newSelection && newSelection != prevItem)
5309 {
5310 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5311 TVC_BYKEYBOARD))
5312 {
5313 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5314 }
5315 }
5316
5317 return FALSE;
5318 }
5319
5320 static LRESULT
5321 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5322 {
5323 /* remove hot effect from item */
5324 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5325 infoPtr->hotItem = NULL;
5326
5327 return 0;
5328 }
5329
5330 static LRESULT
5331 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5332 {
5333 POINT pt;
5334 TRACKMOUSEEVENT trackinfo;
5335 TREEVIEW_ITEM * item;
5336
5337 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5338
5339 /* fill in the TRACKMOUSEEVENT struct */
5340 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5341 trackinfo.dwFlags = TME_QUERY;
5342 trackinfo.hwndTrack = infoPtr->hwnd;
5343
5344 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5345 _TrackMouseEvent(&trackinfo);
5346
5347 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5348 if(!(trackinfo.dwFlags & TME_LEAVE))
5349 {
5350 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5351 trackinfo.hwndTrack = infoPtr->hwnd;
5352 /* do it as fast as possible, minimal systimer latency will be used */
5353 trackinfo.dwHoverTime = 1;
5354
5355 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5356 /* and can properly deactivate the hot item */
5357 _TrackMouseEvent(&trackinfo);
5358 }
5359
5360 pt.x = (short)LOWORD(lParam);
5361 pt.y = (short)HIWORD(lParam);
5362
5363 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5364
5365 if (item != infoPtr->hotItem)
5366 {
5367 /* redraw old hot item */
5368 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5369 infoPtr->hotItem = item;
5370 /* redraw new hot item */
5371 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5372 }
5373
5374 return 0;
5375 }
5376
5377 /* Draw themed border */
5378 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5379 {
5380 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5381 HDC dc;
5382 RECT r;
5383 HRGN cliprgn;
5384 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5385 cyEdge = GetSystemMetrics (SM_CYEDGE);
5386
5387 if (!theme)
5388 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5389
5390 GetWindowRect(infoPtr->hwnd, &r);
5391
5392 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5393 r.right - cxEdge, r.bottom - cyEdge);
5394 if (region != (HRGN)1)
5395 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5396 OffsetRect(&r, -r.left, -r.top);
5397
5398 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5399 OffsetRect(&r, -r.left, -r.top);
5400
5401 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5402 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5403 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5404 ReleaseDC(infoPtr->hwnd, dc);
5405
5406 /* Call default proc to get the scrollbars etc. painted */
5407 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5408
5409 return TRUE;
5410 }
5411
5412 static LRESULT
5413 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5414 {
5415 LPNMHDR lpnmh = (LPNMHDR)lParam;
5416
5417 if (lpnmh->code == PGN_CALCSIZE) {
5418 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5419
5420 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5421 lppgc->iWidth = infoPtr->treeWidth;
5422 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5423 infoPtr->treeWidth, infoPtr->clientWidth);
5424 }
5425 else {
5426 lppgc->iHeight = infoPtr->treeHeight;
5427 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5428 infoPtr->treeHeight, infoPtr->clientHeight);
5429 }
5430 return 0;
5431 }
5432 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5433 }
5434
5435 static LRESULT
5436 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5437 {
5438 if (wParam == SIZE_RESTORED)
5439 {
5440 infoPtr->clientWidth = (short)LOWORD(lParam);
5441 infoPtr->clientHeight = (short)HIWORD(lParam);
5442
5443 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5444 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5445 TREEVIEW_UpdateScrollBars(infoPtr);
5446 }
5447 else
5448 {
5449 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5450 }
5451
5452 TREEVIEW_Invalidate(infoPtr, NULL);
5453 return 0;
5454 }
5455
5456 static LRESULT
5457 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5458 {
5459 TRACE("(%lx %lx)\n", wParam, lParam);
5460
5461 if (wParam == GWL_STYLE)
5462 {
5463 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5464
5465 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5466 {
5467 if (dwNewStyle & TVS_CHECKBOXES)
5468 {
5469 TREEVIEW_InitCheckboxes(infoPtr);
5470 TRACE("checkboxes enabled\n");
5471
5472 /* set all items to state image index 1 */
5473 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5474 }
5475 else
5476 {
5477 FIXME("tried to disable checkboxes\n");
5478 }
5479 }
5480
5481 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5482 {
5483 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5484 {
5485 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5486 TRACE("tooltips enabled\n");
5487 }
5488 else
5489 {
5490 DestroyWindow(infoPtr->hwndToolTip);
5491 infoPtr->hwndToolTip = 0;
5492 TRACE("tooltips disabled\n");
5493 }
5494 }
5495
5496 infoPtr->dwStyle = dwNewStyle;
5497 }
5498
5499 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5500 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5501 TREEVIEW_UpdateScrollBars(infoPtr);
5502 TREEVIEW_Invalidate(infoPtr, NULL);
5503
5504 return 0;
5505 }
5506
5507 static LRESULT
5508 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5509 {
5510 POINT pt;
5511 TREEVIEW_ITEM * item;
5512 NMMOUSE nmmouse;
5513
5514 GetCursorPos(&pt);
5515 ScreenToClient(infoPtr->hwnd, &pt);
5516
5517 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5518
5519 memset(&nmmouse, 0, sizeof(nmmouse));
5520 if (item)
5521 {
5522 nmmouse.dwItemSpec = (DWORD_PTR)item;
5523 nmmouse.dwItemData = item->lParam;
5524 }
5525 nmmouse.pt.x = 0;
5526 nmmouse.pt.y = 0;
5527 nmmouse.dwHitInfo = lParam;
5528 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5529 return 0;
5530
5531 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5532 {
5533 SetCursor(infoPtr->hcurHand);
5534 return 0;
5535 }
5536 else
5537 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5538 }
5539
5540 static LRESULT
5541 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5542 {
5543 TRACE("\n");
5544
5545 if (!infoPtr->selectedItem)
5546 {
5547 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5548 TVC_UNKNOWN);
5549 }
5550
5551 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5552 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5553 return 0;
5554 }
5555
5556 static LRESULT
5557 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5558 {
5559 TRACE("\n");
5560
5561 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5562 UpdateWindow(infoPtr->hwnd);
5563 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5564 return 0;
5565 }
5566
5567 /* update theme after a WM_THEMECHANGED message */
5568 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5569 {
5570 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5571 CloseThemeData (theme);
5572 OpenThemeData (infoPtr->hwnd, themeClass);
5573 return 0;
5574 }
5575
5576
5577 static LRESULT WINAPI
5578 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5579 {
5580 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5581
5582 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5583
5584 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5585 else
5586 {
5587 if (uMsg == WM_CREATE)
5588 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5589 else
5590 goto def;
5591 }
5592
5593 switch (uMsg)
5594 {
5595 case TVM_CREATEDRAGIMAGE:
5596 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5597
5598 case TVM_DELETEITEM:
5599 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5600
5601 case TVM_EDITLABELA:
5602 case TVM_EDITLABELW:
5603 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5604
5605 case TVM_ENDEDITLABELNOW:
5606 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5607
5608 case TVM_ENSUREVISIBLE:
5609 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5610
5611 case TVM_EXPAND:
5612 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5613
5614 case TVM_GETBKCOLOR:
5615 return TREEVIEW_GetBkColor(infoPtr);
5616
5617 case TVM_GETCOUNT:
5618 return TREEVIEW_GetCount(infoPtr);
5619
5620 case TVM_GETEDITCONTROL:
5621 return TREEVIEW_GetEditControl(infoPtr);
5622
5623 case TVM_GETIMAGELIST:
5624 return TREEVIEW_GetImageList(infoPtr, wParam);
5625
5626 case TVM_GETINDENT:
5627 return TREEVIEW_GetIndent(infoPtr);
5628
5629 case TVM_GETINSERTMARKCOLOR:
5630 return TREEVIEW_GetInsertMarkColor(infoPtr);
5631
5632 case TVM_GETISEARCHSTRINGA:
5633 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5634 return 0;
5635
5636 case TVM_GETISEARCHSTRINGW:
5637 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5638 return 0;
5639
5640 case TVM_GETITEMA:
5641 case TVM_GETITEMW:
5642 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5643 uMsg == TVM_GETITEMW);
5644 case TVM_GETITEMHEIGHT:
5645 return TREEVIEW_GetItemHeight(infoPtr);
5646
5647 case TVM_GETITEMRECT:
5648 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5649
5650 case TVM_GETITEMSTATE:
5651 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5652
5653 case TVM_GETLINECOLOR:
5654 return TREEVIEW_GetLineColor(infoPtr);
5655
5656 case TVM_GETNEXTITEM:
5657 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5658
5659 case TVM_GETSCROLLTIME:
5660 return TREEVIEW_GetScrollTime(infoPtr);
5661
5662 case TVM_GETTEXTCOLOR:
5663 return TREEVIEW_GetTextColor(infoPtr);
5664
5665 case TVM_GETTOOLTIPS:
5666 return TREEVIEW_GetToolTips(infoPtr);
5667
5668 case TVM_GETUNICODEFORMAT:
5669 return TREEVIEW_GetUnicodeFormat(infoPtr);
5670
5671 case TVM_GETVISIBLECOUNT:
5672 return TREEVIEW_GetVisibleCount(infoPtr);
5673
5674 case TVM_HITTEST:
5675 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5676
5677 case TVM_INSERTITEMA:
5678 case TVM_INSERTITEMW:
5679 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5680 uMsg == TVM_INSERTITEMW);
5681 case TVM_SELECTITEM:
5682 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5683
5684 case TVM_SETBKCOLOR:
5685 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5686
5687 case TVM_SETIMAGELIST:
5688 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5689
5690 case TVM_SETINDENT:
5691 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5692
5693 case TVM_SETINSERTMARK:
5694 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5695
5696 case TVM_SETINSERTMARKCOLOR:
5697 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5698
5699 case TVM_SETITEMA:
5700 case TVM_SETITEMW:
5701 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5702 uMsg == TVM_SETITEMW);
5703 case TVM_SETLINECOLOR:
5704 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5705
5706 case TVM_SETITEMHEIGHT:
5707 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5708
5709 case TVM_SETSCROLLTIME:
5710 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5711
5712 case TVM_SETTEXTCOLOR:
5713 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5714
5715 case TVM_SETTOOLTIPS:
5716 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5717
5718 case TVM_SETUNICODEFORMAT:
5719 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5720
5721 case TVM_SORTCHILDREN:
5722 return TREEVIEW_SortChildren(infoPtr, lParam);
5723
5724 case TVM_SORTCHILDRENCB:
5725 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5726
5727 case WM_CHAR:
5728 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5729
5730 case WM_COMMAND:
5731 return TREEVIEW_Command(infoPtr, wParam, lParam);
5732
5733 case WM_DESTROY:
5734 return TREEVIEW_Destroy(infoPtr);
5735
5736 /* WM_ENABLE */
5737
5738 case WM_ERASEBKGND:
5739 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5740
5741 case WM_GETDLGCODE:
5742 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5743
5744 case WM_GETFONT:
5745 return TREEVIEW_GetFont(infoPtr);
5746
5747 case WM_HSCROLL:
5748 return TREEVIEW_HScroll(infoPtr, wParam);
5749
5750 case WM_KEYDOWN:
5751 return TREEVIEW_KeyDown(infoPtr, wParam);
5752
5753 case WM_KILLFOCUS:
5754 return TREEVIEW_KillFocus(infoPtr);
5755
5756 case WM_LBUTTONDBLCLK:
5757 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5758
5759 case WM_LBUTTONDOWN:
5760 return TREEVIEW_LButtonDown(infoPtr, lParam);
5761
5762 /* WM_MBUTTONDOWN */
5763
5764 case WM_MOUSELEAVE:
5765 return TREEVIEW_MouseLeave(infoPtr);
5766
5767 case WM_MOUSEMOVE:
5768 return TREEVIEW_MouseMove(infoPtr, lParam);
5769
5770 case WM_NCLBUTTONDOWN:
5771 if (infoPtr->hwndEdit)
5772 SetFocus(infoPtr->hwnd);
5773 goto def;
5774
5775 case WM_NCPAINT:
5776 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5777
5778 case WM_NOTIFY:
5779 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5780
5781 case WM_NOTIFYFORMAT:
5782 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5783
5784 case WM_PRINTCLIENT:
5785 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5786
5787 case WM_PAINT:
5788 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5789
5790 case WM_RBUTTONDOWN:
5791 return TREEVIEW_RButtonDown(infoPtr, lParam);
5792
5793 case WM_SETCURSOR:
5794 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5795
5796 case WM_SETFOCUS:
5797 return TREEVIEW_SetFocus(infoPtr);
5798
5799 case WM_SETFONT:
5800 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5801
5802 case WM_SETREDRAW:
5803 return TREEVIEW_SetRedraw(infoPtr, wParam);
5804
5805 case WM_SIZE:
5806 return TREEVIEW_Size(infoPtr, wParam, lParam);
5807
5808 case WM_STYLECHANGED:
5809 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5810
5811 case WM_SYSCOLORCHANGE:
5812 COMCTL32_RefreshSysColors();
5813 return 0;
5814
5815 /* WM_SYSKEYDOWN */
5816
5817 case WM_TIMER:
5818 return TREEVIEW_HandleTimer(infoPtr, wParam);
5819
5820 case WM_THEMECHANGED:
5821 return TREEVIEW_ThemeChanged (infoPtr);
5822
5823 case WM_VSCROLL:
5824 return TREEVIEW_VScroll(infoPtr, wParam);
5825
5826 /* WM_WININICHANGE */
5827
5828 case WM_MOUSEWHEEL:
5829 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5830
5831 case WM_DRAWITEM:
5832 TRACE("drawItem\n");
5833 goto def;
5834
5835 default:
5836 /* This mostly catches MFC and Delphi messages. :( */
5837 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5838 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5839 def:
5840 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5841 }
5842 }
5843
5844
5845 /* Class Registration ***************************************************/
5846
5847 VOID
5848 TREEVIEW_Register(void)
5849 {
5850 WNDCLASSW wndClass;
5851
5852 TRACE("\n");
5853
5854 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5855 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5856 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5857 wndClass.cbClsExtra = 0;
5858 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5859
5860 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5861 wndClass.hbrBackground = 0;
5862 wndClass.lpszClassName = WC_TREEVIEWW;
5863
5864 RegisterClassW(&wndClass);
5865 }
5866
5867
5868 VOID
5869 TREEVIEW_Unregister(void)
5870 {
5871 UnregisterClassW(WC_TREEVIEWW, NULL);
5872 }
5873
5874
5875 /* Tree Verification ****************************************************/
5876
5877 static inline void
5878 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5879
5880 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5881 const TREEVIEW_ITEM *item)
5882 {
5883 assert(infoPtr != NULL);
5884 assert(item != NULL);
5885
5886 /* both NULL, or both non-null */
5887 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5888
5889 assert(item->firstChild != item);
5890 assert(item->lastChild != item);
5891
5892 if (item->firstChild)
5893 {
5894 assert(item->firstChild->parent == item);
5895 assert(item->firstChild->prevSibling == NULL);
5896 }
5897
5898 if (item->lastChild)
5899 {
5900 assert(item->lastChild->parent == item);
5901 assert(item->lastChild->nextSibling == NULL);
5902 }
5903
5904 assert(item->nextSibling != item);
5905 if (item->nextSibling)
5906 {
5907 assert(item->nextSibling->parent == item->parent);
5908 assert(item->nextSibling->prevSibling == item);
5909 }
5910
5911 assert(item->prevSibling != item);
5912 if (item->prevSibling)
5913 {
5914 assert(item->prevSibling->parent == item->parent);
5915 assert(item->prevSibling->nextSibling == item);
5916 }
5917 }
5918
5919 static inline void
5920 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5921 {
5922 assert(item != NULL);
5923
5924 assert(item->parent != NULL);
5925 assert(item->parent != item);
5926 assert(item->iLevel == item->parent->iLevel + 1);
5927
5928 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5929
5930 TREEVIEW_VerifyItemCommon(infoPtr, item);
5931
5932 TREEVIEW_VerifyChildren(infoPtr, item);
5933 }
5934
5935 static inline void
5936 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5937 {
5938 const TREEVIEW_ITEM *child;
5939 assert(item != NULL);
5940
5941 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5942 TREEVIEW_VerifyItem(infoPtr, child);
5943 }
5944
5945 static inline void
5946 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5947 {
5948 TREEVIEW_ITEM *root = infoPtr->root;
5949
5950 assert(root != NULL);
5951 assert(root->iLevel == -1);
5952 assert(root->parent == NULL);
5953 assert(root->prevSibling == NULL);
5954
5955 TREEVIEW_VerifyItemCommon(infoPtr, root);
5956
5957 TREEVIEW_VerifyChildren(infoPtr, root);
5958 }
5959
5960 static void
5961 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5962 {
5963 if (!TRACE_ON(treeview)) return;
5964
5965 assert(infoPtr != NULL);
5966 TREEVIEW_VerifyRoot(infoPtr);
5967 }
Windows API implementation