ReactOS 0.4.15-dev-8235-gcd88a97
treeview.c
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1/* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO
33 *
34 * missing styles: TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43#include "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#include "wine/heap.h"
68
70
71/* internal structures */
72typedef struct tagTREEVIEW_INFO
73{
75 HWND hwndNotify; /* Owner window to send notifications to */
80 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
81 INT cdmode; /* last custom draw setting */
82 UINT uScrollTime; /* max. time for scrolling in milliseconds */
83 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
84
85 UINT uItemHeight; /* item height */
87
88 LONG clientWidth; /* width of control window */
89 LONG clientHeight; /* height of control window */
90
91 LONG treeWidth; /* width of visible tree items */
92 LONG treeHeight; /* height of visible tree items */
93
94 UINT uIndent; /* indentation in pixels */
95 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
96 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
97 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
98 HTREEITEM editItem; /* item being edited with builtin edit box */
99
100 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
102 HTREEITEM dropItem; /* handle to item selected by drag cursor */
103 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
104 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
105 HIMAGELIST dragList; /* Bitmap of dragged item */
119
121 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
124
125 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
133
139
140typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
141{
142 HTREEITEM parent; /* handle to parent or 0 if at root */
143 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
144 HTREEITEM firstChild; /* handle to first child or 0 if no child */
145
156 int iIntegral; /* item height multiplier (1 is normal) */
157 int iLevel; /* indentation level:0=root level */
159 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
165 LONG textWidth; /* horizontal text extent for pszText */
166 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
167 corresponding to a top-to-bottom ordering in the tree view.
168 Each item takes up "item.iIntegral" spots in the visible order.
169 0 is the root's first child. */
170 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
172
173/******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
174#define KEY_DELAY 450
175
176/* bitflags for infoPtr->uInternalStatus */
177
178#define TV_HSCROLL 0x01 /* treeview too large to fit in window */
179#define TV_VSCROLL 0x02 /* (horizontal/vertical) */
180#define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
181#define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
182#define TV_RDRAG 0x10 /* ditto Rbutton */
183#define TV_RDRAGGING 0x20
184
185/* bitflags for infoPtr->timer */
186
187#define TV_EDIT_TIMER 2
188#define TV_EDIT_TIMER_SET 2
189
190#define TEXT_CALLBACK_SIZE 260
191
192#define TREEVIEW_LEFT_MARGIN 8
193
194#define MINIMUM_INDENT 19
195
196#define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
197
198#define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
199#define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
200#define ISVISIBLE(x) ((x)->visibleOrder >= 0)
201
202#define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
203#define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
204#define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
205#define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
206
207static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
208
209
211
212
213static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
214
218static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
221
222/* Random Utilities *****************************************************/
223static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
224
225/* Returns the treeview private data if hwnd is a treeview.
226 * Otherwise returns an undefined value. */
227static inline TREEVIEW_INFO *
229{
231}
232
233/* Don't call this. Nothing wants an item index. */
234static inline int
236{
237 return DPA_GetPtrIndex(infoPtr->items, handle);
238}
239
240/* Checks if item has changed and needs to be redrawn */
241static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
242 const TVITEMEXW *tvChange)
243{
244 /* Number of children has changed */
245 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
246 return TRUE;
247
248 /* Image has changed and it's not a callback */
249 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
250 tiNew->iImage != I_IMAGECALLBACK)
251 return TRUE;
252
253 /* Selected image has changed and it's not a callback */
254 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
256 return TRUE;
257
258 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
260 return TRUE;
261
262 /* Text has changed and it's not a callback */
263 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
265 return TRUE;
266
267 /* Indent has changed */
268 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
269 return TRUE;
270
271 /* Item state has changed */
272 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
273 return TRUE;
274
275 return FALSE;
276}
277
278/***************************************************************************
279 * This method checks that handle is an item for this tree.
280 */
281static BOOL
283{
284 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
285 {
286 TRACE("invalid item %p\n", handle);
287 return FALSE;
288 }
289 else
290 return TRUE;
291}
292
293static HFONT
295{
297
298 GetObjectW(hOrigFont, sizeof(font), &font);
299 font.lfWeight = FW_BOLD;
300 return CreateFontIndirectW(&font);
301}
302
303static HFONT
305{
307
308 GetObjectW(hOrigFont, sizeof(font), &font);
309 font.lfUnderline = TRUE;
310 return CreateFontIndirectW(&font);
311}
312
313static HFONT
315{
317
318 GetObjectW(hfont, sizeof(font), &font);
319 font.lfWeight = FW_BOLD;
320 font.lfUnderline = TRUE;
321 return CreateFontIndirectW(&font);
322}
323
324static inline HFONT
326{
327 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
328 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
329 if (item->state & TVIS_BOLD)
330 return infoPtr->hBoldFont;
331 return infoPtr->hFont;
332}
333
334/* for trace/debugging purposes only */
335static const char *
337{
338 if (item == NULL) return "<null item>";
339 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
340 if (item->pszText == NULL) return "<null>";
341 return debugstr_w(item->pszText);
342}
343
344/* An item is not a child of itself. */
345static BOOL
347{
348 do
349 {
350 child = child->parent;
351 if (child == parent) return TRUE;
352 } while (child != NULL);
353
354 return FALSE;
355}
356
357static BOOL
359{
360 return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);
361}
362
363static BOOL
365{
366 if (TREEVIEW_IsFullRowSelect(infoPtr))
368 else
369 return ht->flags & TVHT_ONITEM;
370}
371
372/* Tree Traversal *******************************************************/
373
374/***************************************************************************
375 * This method returns the last expanded sibling or child child item
376 * of a tree node
377 */
378static TREEVIEW_ITEM *
380{
381 if (!item) return NULL;
382
383 while (item->lastChild)
384 {
385 if (item->state & TVIS_EXPANDED)
386 item = item->lastChild;
387 else
388 break;
389 }
390
391 if (item == infoPtr->root)
392 return NULL;
393
394 return item;
395}
396
397/***************************************************************************
398 * This method returns the previous non-hidden item in the list not
399 * considering the tree hierarchy.
400 */
401static TREEVIEW_ITEM *
403{
404 if (tvItem->prevSibling)
405 {
406 /* This item has a prevSibling, get the last item in the sibling's tree. */
407 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
408
409 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
410 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
411 else
412 return upItem;
413 }
414 else
415 {
416 /* this item does not have a prevSibling, get the parent */
417 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
418 }
419}
420
421
422/***************************************************************************
423 * This method returns the next physical item in the treeview not
424 * considering the tree hierarchy.
425 */
426static TREEVIEW_ITEM *
428{
429 /*
430 * If this item has children and is expanded, return the first child
431 */
432 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
433 {
434 return tvItem->firstChild;
435 }
436
437
438 /*
439 * try to get the sibling
440 */
441 if (tvItem->nextSibling)
442 return tvItem->nextSibling;
443
444 /*
445 * Otherwise, get the parent's sibling.
446 */
447 while (tvItem->parent)
448 {
449 tvItem = tvItem->parent;
450
451 if (tvItem->nextSibling)
452 return tvItem->nextSibling;
453 }
454
455 return NULL;
456}
457
458/***************************************************************************
459 * This method returns the nth item starting at the given item. It returns
460 * the last item (or first) we we run out of items.
461 *
462 * Will scroll backward if count is <0.
463 * forward if count is >0.
464 */
465static TREEVIEW_ITEM *
467 LONG count)
468{
469 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
470 TREEVIEW_ITEM *previousItem;
471
472 assert(item != NULL);
473
474 if (count > 0)
475 {
476 next_item = TREEVIEW_GetNextListItem;
477 }
478 else if (count < 0)
479 {
480 count = -count;
481 next_item = TREEVIEW_GetPrevListItem;
482 }
483 else
484 return item;
485
486 do
487 {
488 previousItem = item;
489 item = next_item(infoPtr, item);
490
491 } while (--count && item != NULL);
492
493
494 return item ? item : previousItem;
495}
496
497/* Notifications ************************************************************/
498
499static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
500{
501 if (!infoPtr->bNtfUnicode) {
502 switch (code) {
504 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
509 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
510 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
511 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
514 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
515 }
516 }
517 return code;
518}
519
520static inline BOOL
522{
523 TRACE("code=%d, hdr=%p\n", code, hdr);
524
525 hdr->hwndFrom = infoPtr->hwnd;
526 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
527 hdr->code = get_notifycode(infoPtr, code);
528
529 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
530}
531
532static BOOL
534{
535 NMHDR hdr;
536 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
537}
538
539static VOID
541{
542 tvItem->mask = mask;
543 tvItem->hItem = item;
544 tvItem->state = item->state;
545 tvItem->stateMask = 0;
546 tvItem->iImage = item->iImage;
547 tvItem->iSelectedImage = item->iSelectedImage;
548 tvItem->cChildren = item->cChildren;
549 tvItem->lParam = item->lParam;
550
551 if(mask & TVIF_TEXT)
552 {
553 if (!infoPtr->bNtfUnicode)
554 {
555 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
556 tvItem->pszText = heap_alloc (tvItem->cchTextMax);
557 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
558 }
559 else
560 {
561 tvItem->cchTextMax = item->cchTextMax;
562 tvItem->pszText = item->pszText;
563 }
564 }
565 else
566 {
567 tvItem->cchTextMax = 0;
568 tvItem->pszText = NULL;
569 }
570}
571
572static BOOL
574 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
575{
576 NMTREEVIEWW nmhdr;
577 BOOL ret;
578
579 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
580 code, action, oldItem, newItem);
581
582 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
583 nmhdr.action = action;
584
585 if (oldItem)
586 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
587
588 if (newItem)
589 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
590
591 nmhdr.ptDrag.x = 0;
592 nmhdr.ptDrag.y = 0;
593
594 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
595 if (!infoPtr->bNtfUnicode)
596 {
599 }
600 return ret;
601}
602
603static BOOL
605 HTREEITEM dragItem, POINT pt)
606{
607 NMTREEVIEWW nmhdr;
608
609 TRACE("code:%d dragitem:%p\n", code, dragItem);
610
611 nmhdr.action = 0;
613 nmhdr.itemNew.hItem = dragItem;
614 nmhdr.itemNew.state = dragItem->state;
615 nmhdr.itemNew.lParam = dragItem->lParam;
616
617 nmhdr.ptDrag.x = pt.x;
618 nmhdr.ptDrag.y = pt.y;
619
620 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
621}
622
623
624static BOOL
626 HDC hdc, RECT rc)
627{
628 NMTVCUSTOMDRAW nmcdhdr;
629 NMCUSTOMDRAW *nmcd;
630
631 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
632
633 nmcd = &nmcdhdr.nmcd;
634 nmcd->dwDrawStage = dwDrawStage;
635 nmcd->hdc = hdc;
636 nmcd->rc = rc;
637 nmcd->dwItemSpec = 0;
638 nmcd->uItemState = 0;
639 nmcd->lItemlParam = 0;
640 nmcdhdr.clrText = infoPtr->clrText;
641 nmcdhdr.clrTextBk = infoPtr->clrBk;
642 nmcdhdr.iLevel = 0;
643
644 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
645}
646
647/* FIXME: need to find out when the flags in uItemState need to be set */
648
649static BOOL
651 TREEVIEW_ITEM *item, UINT uItemDrawState,
652 NMTVCUSTOMDRAW *nmcdhdr)
653{
654 NMCUSTOMDRAW *nmcd;
655 DWORD dwDrawStage;
656 DWORD_PTR dwItemSpec;
657 UINT uItemState;
658
659 dwDrawStage = CDDS_ITEM | uItemDrawState;
660 dwItemSpec = (DWORD_PTR)item;
661 uItemState = 0;
662 if (item->state & TVIS_SELECTED)
663 uItemState |= CDIS_SELECTED;
664 if (item == infoPtr->selectedItem)
665 uItemState |= CDIS_FOCUS;
666 if (item == infoPtr->hotItem)
667 uItemState |= CDIS_HOT;
668
669 nmcd = &nmcdhdr->nmcd;
670 nmcd->dwDrawStage = dwDrawStage;
671 nmcd->hdc = hdc;
672 nmcd->rc = item->rect;
673 nmcd->dwItemSpec = dwItemSpec;
674 nmcd->uItemState = uItemState;
675 nmcd->lItemlParam = item->lParam;
676 nmcdhdr->iLevel = item->iLevel;
677
678 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
679 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
680 nmcd->uItemState, nmcd->lItemlParam);
681
682 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
683}
684
685static BOOL
687{
688 NMTVDISPINFOW tvdi;
689 BOOL ret;
690
692 &tvdi.item, editItem);
693
695
696 if (!infoPtr->bNtfUnicode)
697 heap_free(tvdi.item.pszText);
698
699 return ret;
700}
701
702static void
704 UINT mask)
705{
706 NMTVDISPINFOEXW callback;
707
708 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
709 mask &= item->callbackMask;
710
711 if (mask == 0) return;
712
713 /* 'state' always contains valid value, as well as 'lParam'.
714 * All other parameters are uninitialized.
715 */
716 callback.item.pszText = item->pszText;
717 callback.item.cchTextMax = item->cchTextMax;
718 callback.item.mask = mask;
719 callback.item.hItem = item;
720 callback.item.state = item->state;
721 callback.item.lParam = item->lParam;
722
723 /* If text is changed we need to recalculate textWidth */
724 if (mask & TVIF_TEXT)
725 item->textWidth = 0;
726
728 TRACE("resulting code 0x%08x\n", callback.hdr.code);
729
730 /* It may have changed due to a call to SetItem. */
731 mask &= item->callbackMask;
732
733 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
734 {
735 /* Instead of copying text into our buffer user specified his own */
736 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
737 LPWSTR newText;
738 int buflen;
740 (LPSTR)callback.item.pszText, -1,
741 NULL, 0);
742 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
743 newText = heap_realloc(item->pszText, buflen);
744
745 TRACE("returned str %s, len=%d, buflen=%d\n",
746 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
747
748 if (newText)
749 {
750 item->pszText = newText;
752 (LPSTR)callback.item.pszText, -1,
753 item->pszText, buflen/sizeof(WCHAR));
754 item->cchTextMax = buflen/sizeof(WCHAR);
755 }
756 /* If realloc fails we have nothing to do, but keep original text */
757 }
758 else {
759 int len = max(lstrlenW(callback.item.pszText) + 1,
761 LPWSTR newText = heap_realloc(item->pszText, len);
762
763 TRACE("returned wstr %s, len=%d\n",
764 debugstr_w(callback.item.pszText), len);
765
766 if (newText)
767 {
768 item->pszText = newText;
769 strcpyW(item->pszText, callback.item.pszText);
770 item->cchTextMax = len;
771 }
772 /* If realloc fails we have nothing to do, but keep original text */
773 }
774 }
775 else if (mask & TVIF_TEXT) {
776 /* User put text into our buffer, that is ok unless A string */
777 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
778 LPWSTR newText;
779 int buflen;
781 (LPSTR)callback.item.pszText, -1,
782 NULL, 0);
783 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
784 newText = heap_alloc(buflen);
785
786 TRACE("same buffer str %s, len=%d, buflen=%d\n",
787 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
788
789 if (newText)
790 {
791 LPWSTR oldText = item->pszText;
792 item->pszText = newText;
794 (LPSTR)callback.item.pszText, -1,
795 item->pszText, buflen/sizeof(WCHAR));
796 item->cchTextMax = buflen/sizeof(WCHAR);
797 heap_free(oldText);
798 }
799 }
800 }
801
802 if (mask & TVIF_IMAGE)
803 item->iImage = callback.item.iImage;
804
806 item->iSelectedImage = callback.item.iSelectedImage;
807
809 item->iExpandedImage = callback.item.iExpandedImage;
810
811 if (mask & TVIF_CHILDREN)
812 item->cChildren = callback.item.cChildren;
813
814 if (callback.item.mask & TVIF_STATE)
815 {
816 item->state &= ~callback.item.stateMask;
817 item->state |= (callback.item.state & callback.item.stateMask);
818 }
819
820 /* These members are now permanently set. */
821 if (callback.item.mask & TVIF_DI_SETITEM)
822 item->callbackMask &= ~callback.item.mask;
823}
824
825/***************************************************************************
826 * This function uses cChildren field to decide whether the item has
827 * children or not.
828 * Note: if this returns TRUE, the child items may not actually exist,
829 * they could be virtual.
830 *
831 * Just use item->firstChild to check for physical children.
832 */
833static BOOL
835{
837 /* Protect for a case when callback field is not changed by a host,
838 otherwise negative values trigger normal notifications. */
839 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
840}
841
842static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
843{
844 INT format;
845
846 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
847
848 if (nCommand != NF_REQUERY) return 0;
849
850 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
851 TRACE("format=%d\n", format);
852
853 /* Invalid format returned by NF_QUERY defaults to ANSI*/
854 if (format != NFR_ANSI && format != NFR_UNICODE)
856
857 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
858
859 return format;
860}
861
862/* Item Position ********************************************************/
863
864/* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
865static VOID
867{
868 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
871
872 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
873 - infoPtr->scrollX;
874 item->stateOffset = item->linesOffset + infoPtr->uIndent;
875 item->imageOffset = item->stateOffset
876 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
877 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
878}
879
880static VOID
882{
883 HDC hdc;
884 HFONT hOldFont=0;
885 SIZE sz;
886
887 /* DRAW's OM docker creates items like this */
888 if (item->pszText == NULL)
889 {
890 item->textWidth = 0;
891 return;
892 }
893
894 if (hDC != 0)
895 {
896 hdc = hDC;
897 }
898 else
899 {
900 hdc = GetDC(infoPtr->hwnd);
901 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
902 }
903
904 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
905 item->textWidth = sz.cx;
906
907 if (hDC == 0)
908 {
909 SelectObject(hdc, hOldFont);
910 ReleaseDC(0, hdc);
911 }
912}
913
914static VOID
916{
917 item->rect.top = infoPtr->uItemHeight *
918 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
919
920 item->rect.bottom = item->rect.top
921 + infoPtr->uItemHeight * item->iIntegral - 1;
922
923 item->rect.left = 0;
924 item->rect.right = infoPtr->clientWidth;
925}
926
927/* We know that only items after start need their order updated. */
928static void
930{
932 int order;
933
934 if (!start)
935 {
936 start = infoPtr->root->firstChild;
937 order = 0;
938 }
939 else
941
942 for (item = start; item != NULL;
944 {
945 if (!ISVISIBLE(item) && order > 0)
947 item->visibleOrder = order;
948 order += item->iIntegral;
949 }
950
951 infoPtr->maxVisibleOrder = order;
952
953 for (item = start; item != NULL;
955 {
957 }
958}
959
960
961/* Update metrics of all items in selected subtree.
962 * root must be expanded
963 */
964static VOID
966{
967 TREEVIEW_ITEM *sibling;
968 HDC hdc;
969 HFONT hOldFont;
970
971 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
972 return;
973
974 root->state &= ~TVIS_EXPANDED;
975 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
976 root->state |= TVIS_EXPANDED;
977
978 hdc = GetDC(infoPtr->hwnd);
979 hOldFont = SelectObject(hdc, infoPtr->hFont);
980
981 for (; root != sibling;
983 {
985
986 if (root->callbackMask & TVIF_TEXT)
988
989 if (root->textWidth == 0)
990 {
993 }
994 }
995
996 SelectObject(hdc, hOldFont);
997 ReleaseDC(infoPtr->hwnd, hdc);
998}
999
1000/* Item Allocation **********************************************************/
1001
1002static TREEVIEW_ITEM *
1004{
1005 TREEVIEW_ITEM *newItem = heap_alloc_zero(sizeof(*newItem));
1006
1007 if (!newItem)
1008 return NULL;
1009
1010 /* I_IMAGENONE would make more sense but this is neither what is
1011 * documented (MSDN doesn't specify) nor what Windows actually does
1012 * (it sets it to zero)... and I can so imagine an application using
1013 * inc/dec to toggle the images. */
1014 newItem->iImage = 0;
1015 newItem->iSelectedImage = 0;
1016 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1017 newItem->infoPtr = infoPtr;
1018
1019 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1020 {
1021 heap_free(newItem);
1022 return NULL;
1023 }
1024
1025 return newItem;
1026}
1027
1028/* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1029 * free item->pszText. */
1030static void
1032{
1033 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1034 if (infoPtr->selectedItem == item)
1035 infoPtr->selectedItem = NULL;
1036 if (infoPtr->hotItem == item)
1037 infoPtr->hotItem = NULL;
1038 if (infoPtr->focusedItem == item)
1039 infoPtr->focusedItem = NULL;
1040 if (infoPtr->firstVisible == item)
1041 infoPtr->firstVisible = NULL;
1042 if (infoPtr->dropItem == item)
1043 infoPtr->dropItem = NULL;
1044 if (infoPtr->insertMarkItem == item)
1045 infoPtr->insertMarkItem = NULL;
1046 heap_free(item);
1047}
1048
1049
1050/* Item Insertion *******************************************************/
1051
1052/***************************************************************************
1053 * This method inserts newItem before sibling as a child of parent.
1054 * sibling can be NULL, but only if parent has no children.
1055 */
1056static void
1059{
1060 assert(parent != NULL);
1061
1062 if (sibling != NULL)
1063 {
1064 assert(sibling->parent == parent);
1065
1066 if (sibling->prevSibling != NULL)
1067 sibling->prevSibling->nextSibling = newItem;
1068
1069 newItem->prevSibling = sibling->prevSibling;
1070 sibling->prevSibling = newItem;
1071 }
1072 else
1073 newItem->prevSibling = NULL;
1074
1075 newItem->nextSibling = sibling;
1076
1077 if (parent->firstChild == sibling)
1078 parent->firstChild = newItem;
1079
1080 if (parent->lastChild == NULL)
1081 parent->lastChild = newItem;
1082}
1083
1084/***************************************************************************
1085 * This method inserts newItem after sibling as a child of parent.
1086 * sibling can be NULL, but only if parent has no children.
1087 */
1088static void
1091{
1092 assert(parent != NULL);
1093
1094 if (sibling != NULL)
1095 {
1096 assert(sibling->parent == parent);
1097
1098 if (sibling->nextSibling != NULL)
1099 sibling->nextSibling->prevSibling = newItem;
1100
1101 newItem->nextSibling = sibling->nextSibling;
1102 sibling->nextSibling = newItem;
1103 }
1104 else
1105 newItem->nextSibling = NULL;
1106
1107 newItem->prevSibling = sibling;
1108
1109 if (parent->lastChild == sibling)
1110 parent->lastChild = newItem;
1111
1112 if (parent->firstChild == NULL)
1113 parent->firstChild = newItem;
1114}
1115
1116static BOOL
1118 const TVITEMEXW *tvItem, BOOL isW)
1119{
1120 UINT callbackClear = 0;
1121 UINT callbackSet = 0;
1122
1123 TRACE("item %p\n", item);
1124 /* Do this first in case it fails. */
1125 if (tvItem->mask & TVIF_TEXT)
1126 {
1127 item->textWidth = 0; /* force width recalculation */
1128 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1129 {
1130 int len;
1131 LPWSTR newText;
1132 if (isW)
1133 len = lstrlenW(tvItem->pszText) + 1;
1134 else
1135 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1136
1137 newText = heap_realloc(item->pszText, len * sizeof(WCHAR));
1138
1139 if (newText == NULL) return FALSE;
1140
1141 callbackClear |= TVIF_TEXT;
1142
1143 item->pszText = newText;
1144 item->cchTextMax = len;
1145 if (isW)
1146 lstrcpynW(item->pszText, tvItem->pszText, len);
1147 else
1148 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1149 item->pszText, len);
1150
1151 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1152 }
1153 else
1154 {
1155 callbackSet |= TVIF_TEXT;
1156 item->pszText = heap_realloc(item->pszText, TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1157 item->cchTextMax = TEXT_CALLBACK_SIZE;
1158 TRACE("setting callback, item %p\n", item);
1159 }
1160 }
1161
1162 if (tvItem->mask & TVIF_CHILDREN)
1163 {
1164 item->cChildren = tvItem->cChildren;
1165
1166 if (item->cChildren == I_CHILDRENCALLBACK)
1167 callbackSet |= TVIF_CHILDREN;
1168 else
1169 callbackClear |= TVIF_CHILDREN;
1170 }
1171
1172 if (tvItem->mask & TVIF_IMAGE)
1173 {
1174 item->iImage = tvItem->iImage;
1175
1176 if (item->iImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_IMAGE;
1178 else
1179 callbackClear |= TVIF_IMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1183 {
1184 item->iSelectedImage = tvItem->iSelectedImage;
1185
1186 if (item->iSelectedImage == I_IMAGECALLBACK)
1187 callbackSet |= TVIF_SELECTEDIMAGE;
1188 else
1189 callbackClear |= TVIF_SELECTEDIMAGE;
1190 }
1191
1192 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1193 {
1194 item->iExpandedImage = tvItem->iExpandedImage;
1195
1196 if (item->iExpandedImage == I_IMAGECALLBACK)
1197 callbackSet |= TVIF_EXPANDEDIMAGE;
1198 else
1199 callbackClear |= TVIF_EXPANDEDIMAGE;
1200 }
1201
1202 if (tvItem->mask & TVIF_PARAM)
1203 item->lParam = tvItem->lParam;
1204
1205 /* If the application sets TVIF_INTEGRAL without
1206 * supplying a TVITEMEX structure, it's toast. */
1207 if (tvItem->mask & TVIF_INTEGRAL)
1208 item->iIntegral = tvItem->iIntegral;
1209
1210 if (tvItem->mask & TVIF_STATE)
1211 {
1212 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1213 tvItem->stateMask);
1214 item->state &= ~tvItem->stateMask;
1215 item->state |= (tvItem->state & tvItem->stateMask);
1216 }
1217
1218 if (tvItem->mask & TVIF_STATEEX)
1219 {
1220 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1221 }
1222
1223 item->callbackMask |= callbackSet;
1224 item->callbackMask &= ~callbackClear;
1225
1226 return TRUE;
1227}
1228
1229/* Note that the new item is pre-zeroed. */
1230static LRESULT
1232{
1233 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1234 HTREEITEM insertAfter;
1235 TREEVIEW_ITEM *newItem, *parentItem;
1236 BOOL bTextUpdated = FALSE;
1237
1238 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1239 {
1240 parentItem = infoPtr->root;
1241 }
1242 else
1243 {
1244 parentItem = ptdi->hParent;
1245
1246 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1247 {
1248 WARN("invalid parent %p\n", parentItem);
1249 return 0;
1250 }
1251 }
1252
1253 insertAfter = ptdi->hInsertAfter;
1254
1255 /* Validate this now for convenience. */
1256 switch ((DWORD_PTR)insertAfter)
1257 {
1258 case (DWORD_PTR)TVI_FIRST:
1259 case (DWORD_PTR)TVI_LAST:
1260 case (DWORD_PTR)TVI_SORT:
1261 break;
1262
1263 default:
1264 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1265 insertAfter->parent != parentItem)
1266 {
1267 WARN("invalid insert after %p\n", insertAfter);
1268 insertAfter = TVI_LAST;
1269 }
1270 }
1271
1272 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1273 (tvItem->mask & TVIF_TEXT)
1274 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1275 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1276 : "<no label>");
1277
1278 newItem = TREEVIEW_AllocateItem(infoPtr);
1279 if (newItem == NULL)
1280 return 0;
1281
1282 newItem->parent = parentItem;
1283 newItem->iIntegral = 1;
1284 newItem->visibleOrder = -1;
1285
1286 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1287 return 0;
1288
1289 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1290
1291 infoPtr->uNumItems++;
1292
1293 switch ((DWORD_PTR)insertAfter)
1294 {
1295 case (DWORD_PTR)TVI_FIRST:
1296 {
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1299 if (infoPtr->firstVisible == originalFirst)
1300 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1301 }
1302 break;
1303
1304 case (DWORD_PTR)TVI_LAST:
1305 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1306 break;
1307
1308 /* hInsertAfter names a specific item we want to insert after */
1309 default:
1310 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1311 break;
1312
1313 case (DWORD_PTR)TVI_SORT:
1314 {
1315 TREEVIEW_ITEM *aChild;
1316 TREEVIEW_ITEM *previousChild = NULL;
1317 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1318 BOOL bItemInserted = FALSE;
1319
1320 aChild = parentItem->firstChild;
1321
1322 bTextUpdated = TRUE;
1323 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1324
1325 /* Iterate the parent children to see where we fit in */
1326 while (aChild != NULL)
1327 {
1328 INT comp;
1329
1330 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1331 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1332
1333 if (comp < 0) /* we are smaller than the current one */
1334 {
1335 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1336 if (infoPtr->firstVisible == originalFirst &&
1337 aChild == originalFirst)
1338 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1339 bItemInserted = TRUE;
1340 break;
1341 }
1342 else if (comp > 0) /* we are bigger than the current one */
1343 {
1344 previousChild = aChild;
1345
1346 /* This will help us to exit if there is no more sibling */
1347 aChild = (aChild->nextSibling == 0)
1348 ? NULL
1349 : aChild->nextSibling;
1350
1351 /* Look at the next item */
1352 continue;
1353 }
1354 else if (comp == 0)
1355 {
1356 /*
1357 * An item with this name is already existing, therefore,
1358 * we add after the one we found
1359 */
1360 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1361 bItemInserted = TRUE;
1362 break;
1363 }
1364 }
1365
1366 /*
1367 * we reach the end of the child list and the item has not
1368 * yet been inserted, therefore, insert it after the last child.
1369 */
1370 if ((!bItemInserted) && (aChild == NULL))
1371 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1372
1373 break;
1374 }
1375 }
1376
1377
1378 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1379 newItem->parent, tvItem->mask);
1380
1381 newItem->iLevel = newItem->parent->iLevel + 1;
1382
1383 if (newItem->parent->cChildren == 0)
1384 newItem->parent->cChildren = 1;
1385
1386 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1387 {
1388 if (STATEIMAGEINDEX(newItem->state) == 0)
1389 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1390 }
1391
1392 if (infoPtr->firstVisible == NULL)
1393 infoPtr->firstVisible = newItem;
1394
1395 TREEVIEW_VerifyTree(infoPtr);
1396
1397 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1398
1399 if (parentItem == infoPtr->root ||
1400 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1401 {
1403 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1404
1405 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1406 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1407
1408 if (!bTextUpdated)
1409 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1410
1411 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1413 /*
1414 * if the item was inserted in a visible part of the tree,
1415 * invalidate it, as well as those after it
1416 */
1417 for (item = newItem;
1418 item != NULL;
1420 TREEVIEW_Invalidate(infoPtr, item);
1421 }
1422 else
1423 {
1424 /* refresh treeview if newItem is the first item inserted under parentItem */
1425 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1426 {
1427 /* parent got '+' - update it */
1428 TREEVIEW_Invalidate(infoPtr, parentItem);
1429 }
1430 }
1431
1432 return (LRESULT)newItem;
1433}
1434
1435/* Item Deletion ************************************************************/
1436static void
1438
1439static void
1441{
1442 TREEVIEW_ITEM *kill = parentItem->firstChild;
1443
1444 while (kill != NULL)
1445 {
1447
1448 TREEVIEW_RemoveItem(infoPtr, kill);
1449
1450 kill = next;
1451 }
1452
1453 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1454 assert(parentItem->firstChild == NULL);
1455 assert(parentItem->lastChild == NULL);
1456}
1457
1458static void
1460{
1461 TREEVIEW_ITEM *parentItem;
1462
1463 assert(item != NULL);
1464 assert(item->parent != NULL); /* i.e. it must not be the root */
1465
1466 parentItem = item->parent;
1467
1468 if (parentItem->firstChild == item)
1469 parentItem->firstChild = item->nextSibling;
1470
1471 if (parentItem->lastChild == item)
1472 parentItem->lastChild = item->prevSibling;
1473
1474 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1475 && parentItem->cChildren > 0)
1476 parentItem->cChildren = 0;
1477
1478 if (item->prevSibling)
1479 item->prevSibling->nextSibling = item->nextSibling;
1480
1481 if (item->nextSibling)
1482 item->nextSibling->prevSibling = item->prevSibling;
1483}
1484
1485static void
1487{
1488 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1489
1490 if (item->firstChild)
1492
1495
1497
1498 infoPtr->uNumItems--;
1499
1500 if (item->pszText != LPSTR_TEXTCALLBACKW)
1501 heap_free(item->pszText);
1502
1503 TREEVIEW_FreeItem(infoPtr, item);
1504}
1505
1506
1507/* Empty out the tree. */
1508static void
1510{
1511 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1512
1513 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1514}
1515
1516static LRESULT
1518{
1519 TREEVIEW_ITEM *newSelection = NULL;
1520 TREEVIEW_ITEM *newFirstVisible = NULL;
1521 TREEVIEW_ITEM *parent, *prev = NULL;
1522 BOOL visible = FALSE;
1523
1524 if (item == TVI_ROOT || !item)
1525 {
1526 TRACE("TVI_ROOT\n");
1527 parent = infoPtr->root;
1528 newSelection = NULL;
1529 visible = TRUE;
1530 TREEVIEW_RemoveTree(infoPtr);
1531 }
1532 else
1533 {
1534 if (!TREEVIEW_ValidItem(infoPtr, item))
1535 return FALSE;
1536
1537 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1538 parent = item->parent;
1539
1540 if (ISVISIBLE(item))
1541 {
1542 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1543 visible = TRUE;
1544 }
1545
1546 if (infoPtr->selectedItem != NULL
1547 && (item == infoPtr->selectedItem
1548 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1549 {
1550 if (item->nextSibling)
1551 newSelection = item->nextSibling;
1552 else if (item->parent != infoPtr->root)
1553 newSelection = item->parent;
1554 else
1555 newSelection = item->prevSibling;
1556 TRACE("newSelection = %p\n", newSelection);
1557 }
1558
1559 if (infoPtr->firstVisible == item)
1560 {
1561 visible = TRUE;
1562 if (item->nextSibling)
1563 newFirstVisible = item->nextSibling;
1564 else if (item->prevSibling)
1565 newFirstVisible = item->prevSibling;
1566 else if (item->parent != infoPtr->root)
1567 newFirstVisible = item->parent;
1569 }
1570 else
1571 newFirstVisible = infoPtr->firstVisible;
1572
1573 TREEVIEW_RemoveItem(infoPtr, item);
1574 }
1575
1576 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1577 if (!infoPtr->selectedItem && newSelection)
1578 {
1579 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1580 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1581 }
1582
1583 /* Validate insertMark dropItem.
1584 * hotItem ??? - used for comparison only.
1585 */
1586 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1587 infoPtr->insertMarkItem = 0;
1588
1589 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1590 infoPtr->dropItem = 0;
1591
1592 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1593 newFirstVisible = infoPtr->root->firstChild;
1594
1595 TREEVIEW_VerifyTree(infoPtr);
1596
1597 if (visible)
1598 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1599
1600 if (!infoPtr->bRedraw) return TRUE;
1601
1602 if (visible)
1603 {
1604 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1606 TREEVIEW_Invalidate(infoPtr, NULL);
1607 }
1608 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1609 {
1610 /* parent lost '+/-' - update it */
1611 TREEVIEW_Invalidate(infoPtr, parent);
1612 }
1613
1614 return TRUE;
1615}
1616
1617
1618/* Get/Set Messages *********************************************************/
1619static LRESULT
1621{
1622 infoPtr->bRedraw = wParam != 0;
1623
1624 if (infoPtr->bRedraw)
1625 {
1626 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1629 TREEVIEW_Invalidate(infoPtr, NULL);
1630 }
1631 return 0;
1632}
1633
1634static LRESULT
1636{
1637 TRACE("\n");
1638 return infoPtr->uIndent;
1639}
1640
1641static LRESULT
1643{
1644 TRACE("\n");
1645
1646 if (newIndent < MINIMUM_INDENT)
1647 newIndent = MINIMUM_INDENT;
1648
1649 if (infoPtr->uIndent != newIndent)
1650 {
1651 infoPtr->uIndent = newIndent;
1652 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1654 TREEVIEW_Invalidate(infoPtr, NULL);
1655 }
1656
1657 return 0;
1658}
1659
1660
1661static LRESULT
1663{
1664 TRACE("\n");
1665 return (LRESULT)infoPtr->hwndToolTip;
1666}
1667
1668static LRESULT
1670{
1671 HWND prevToolTip;
1672
1673 TRACE("\n");
1674 prevToolTip = infoPtr->hwndToolTip;
1675 infoPtr->hwndToolTip = hwndTT;
1676
1677 return (LRESULT)prevToolTip;
1678}
1679
1680static LRESULT
1682{
1683 BOOL rc = infoPtr->bNtfUnicode;
1684 infoPtr->bNtfUnicode = fUnicode;
1685 return rc;
1686}
1687
1688static LRESULT
1690{
1691 return infoPtr->bNtfUnicode;
1692}
1693
1694static LRESULT
1696{
1697 return infoPtr->uScrollTime;
1698}
1699
1700static LRESULT
1702{
1703 UINT uOldScrollTime = infoPtr->uScrollTime;
1704
1705 infoPtr->uScrollTime = min(uScrollTime, 100);
1706
1707 return uOldScrollTime;
1708}
1709
1710
1711static LRESULT
1713{
1714 TRACE("\n");
1715
1716 switch (wParam)
1717 {
1718 case TVSIL_NORMAL:
1719 return (LRESULT)infoPtr->himlNormal;
1720
1721 case TVSIL_STATE:
1722 return (LRESULT)infoPtr->himlState;
1723
1724 default:
1725 return 0;
1726 }
1727}
1728
1729#define TVHEIGHT_MIN 16
1730#define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1731
1732/* Compute the natural height for items. */
1733static UINT
1735{
1737 HDC hdc = GetDC(0);
1738 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1739 UINT height;
1740
1741 /* Height is the maximum of:
1742 * 16 (a hack because our fonts are tiny), and
1743 * The text height + border & margin, and
1744 * The size of the normal image list
1745 */
1747 SelectObject(hdc, hOldFont);
1748 ReleaseDC(0, hdc);
1749
1751 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1752 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1753 if (height < infoPtr->normalImageHeight)
1754 height = infoPtr->normalImageHeight;
1755
1756 /* Round down, unless we support odd ("non even") heights. */
1757 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1758 height &= ~1;
1759
1760 return height;
1761}
1762
1763static LRESULT
1765{
1766 HIMAGELIST himlOld = 0;
1767 int oldWidth = infoPtr->normalImageWidth;
1768 int oldHeight = infoPtr->normalImageHeight;
1769
1770 TRACE("%u,%p\n", type, himlNew);
1771
1772 switch (type)
1773 {
1774 case TVSIL_NORMAL:
1775 himlOld = infoPtr->himlNormal;
1776 infoPtr->himlNormal = himlNew;
1777
1778 if (himlNew)
1779 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1780 &infoPtr->normalImageHeight);
1781 else
1782 {
1783 infoPtr->normalImageWidth = 0;
1784 infoPtr->normalImageHeight = 0;
1785 }
1786
1787 break;
1788
1789 case TVSIL_STATE:
1790 himlOld = infoPtr->himlState;
1791 infoPtr->himlState = himlNew;
1792
1793 if (himlNew)
1794 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1795 &infoPtr->stateImageHeight);
1796 else
1797 {
1798 infoPtr->stateImageWidth = 0;
1799 infoPtr->stateImageHeight = 0;
1800 }
1801
1802 break;
1803
1804 default:
1805 ERR("unknown imagelist type %u\n", type);
1806 }
1807
1808 if (oldWidth != infoPtr->normalImageWidth ||
1809 oldHeight != infoPtr->normalImageHeight)
1810 {
1811 BOOL bRecalcVisible = FALSE;
1812
1813 if (oldHeight != infoPtr->normalImageHeight &&
1814 !infoPtr->bHeightSet)
1815 {
1816 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1817 bRecalcVisible = TRUE;
1818 }
1819
1820 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1821 infoPtr->normalImageWidth != infoPtr->uIndent)
1822 {
1823 infoPtr->uIndent = infoPtr->normalImageWidth;
1824 bRecalcVisible = TRUE;
1825 }
1826
1827 if (bRecalcVisible)
1829
1830 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1832 }
1833
1834 TREEVIEW_Invalidate(infoPtr, NULL);
1835
1836 return (LRESULT)himlOld;
1837}
1838
1839static LRESULT
1841{
1842 INT prevHeight = infoPtr->uItemHeight;
1843
1844 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1845 if (newHeight == -1)
1846 {
1847 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1848 infoPtr->bHeightSet = FALSE;
1849 }
1850 else
1851 {
1852 if (newHeight == 0) newHeight = 1;
1853 infoPtr->uItemHeight = newHeight;
1854 infoPtr->bHeightSet = TRUE;
1855 }
1856
1857 /* Round down, unless we support odd ("non even") heights. */
1858 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1859 {
1860 infoPtr->uItemHeight &= ~1;
1861 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1862 }
1863
1864 if (infoPtr->uItemHeight != prevHeight)
1865 {
1868 TREEVIEW_Invalidate(infoPtr, NULL);
1869 }
1870
1871 return prevHeight;
1872}
1873
1874static LRESULT
1876{
1877 TRACE("\n");
1878 return infoPtr->uItemHeight;
1879}
1880
1881
1882static LRESULT
1884{
1885 TRACE("%p\n", infoPtr->hFont);
1886 return (LRESULT)infoPtr->hFont;
1887}
1888
1889
1890static INT CALLBACK
1892{
1893 (void)unused;
1894
1895 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1896
1897 return 1;
1898}
1899
1900static LRESULT
1902{
1903 UINT uHeight = infoPtr->uItemHeight;
1904
1905 TRACE("%p %i\n", hFont, bRedraw);
1906
1907 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1908
1909 DeleteObject(infoPtr->hBoldFont);
1910 DeleteObject(infoPtr->hUnderlineFont);
1912 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1915
1916 if (!infoPtr->bHeightSet)
1917 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1918
1919 if (uHeight != infoPtr->uItemHeight)
1921
1923
1924 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1926
1927 if (bRedraw)
1928 TREEVIEW_Invalidate(infoPtr, NULL);
1929
1930 return 0;
1931}
1932
1933
1934static LRESULT
1936{
1937 TRACE("\n");
1938 return (LRESULT)infoPtr->clrLine;
1939}
1940
1941static LRESULT
1943{
1944 COLORREF prevColor = infoPtr->clrLine;
1945
1946 TRACE("\n");
1947 infoPtr->clrLine = color;
1948 return (LRESULT)prevColor;
1949}
1950
1951
1952static LRESULT
1954{
1955 TRACE("\n");
1956 return (LRESULT)infoPtr->clrText;
1957}
1958
1959static LRESULT
1961{
1962 COLORREF prevColor = infoPtr->clrText;
1963
1964 TRACE("\n");
1965 infoPtr->clrText = color;
1966
1967 if (infoPtr->clrText != prevColor)
1968 TREEVIEW_Invalidate(infoPtr, NULL);
1969
1970 return (LRESULT)prevColor;
1971}
1972
1973
1974static LRESULT
1976{
1977 TRACE("\n");
1978 return (LRESULT)infoPtr->clrBk;
1979}
1980
1981static LRESULT
1983{
1984 COLORREF prevColor = infoPtr->clrBk;
1985
1986 TRACE("\n");
1987 infoPtr->clrBk = newColor;
1988
1989 if (newColor != prevColor)
1990 TREEVIEW_Invalidate(infoPtr, NULL);
1991
1992 return (LRESULT)prevColor;
1993}
1994
1995
1996static LRESULT
1998{
1999 TRACE("\n");
2000 return (LRESULT)infoPtr->clrInsertMark;
2001}
2002
2003static LRESULT
2005{
2006 COLORREF prevColor = infoPtr->clrInsertMark;
2007
2008 TRACE("0x%08x\n", color);
2009 infoPtr->clrInsertMark = color;
2010
2011 return (LRESULT)prevColor;
2012}
2013
2014
2015static LRESULT
2017{
2018 TRACE("%d %p\n", wParam, item);
2019
2020 if (!TREEVIEW_ValidItem(infoPtr, item))
2021 return 0;
2022
2023 infoPtr->insertBeforeorAfter = wParam;
2024 infoPtr->insertMarkItem = item;
2025
2026 TREEVIEW_Invalidate(infoPtr, NULL);
2027
2028 return 1;
2029}
2030
2031
2032/************************************************************************
2033 * Some serious braindamage here. lParam is a pointer to both the
2034 * input HTREEITEM and the output RECT.
2035 */
2036static LRESULT
2037TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2038{
2040 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2041
2042 TRACE("\n");
2043
2044 if (pItem == NULL)
2045 return FALSE;
2046
2047 item = *pItem;
2048 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2049 return FALSE;
2050
2051 /*
2052 * If wParam is TRUE return the text size otherwise return
2053 * the whole item size
2054 */
2055 if (fTextRect)
2056 {
2057 /* Windows does not send TVN_GETDISPINFO here. */
2058
2059 lpRect->top = item->rect.top;
2060 lpRect->bottom = item->rect.bottom;
2061
2062 lpRect->left = item->textOffset;
2063 if (!item->textWidth)
2064 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2065
2066 lpRect->right = item->textOffset + item->textWidth + 4;
2067 }
2068 else
2069 {
2070 *lpRect = item->rect;
2071 }
2072
2073 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2074
2075 return TRUE;
2076}
2077
2078static inline LRESULT
2080{
2081 /* Surprise! This does not take integral height into account. */
2082 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2083 return infoPtr->clientHeight / infoPtr->uItemHeight;
2084}
2085
2086
2087static LRESULT
2089{
2090 TREEVIEW_ITEM *item = tvItem->hItem;
2091
2092 if (!TREEVIEW_ValidItem(infoPtr, item))
2093 {
2094 BOOL valid_item = FALSE;
2095 if (!item) return FALSE;
2096
2097 __TRY
2098 {
2099 infoPtr = item->infoPtr;
2100 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2101 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2102 }
2104 {
2105 }
2106 __ENDTRY
2107 if (!valid_item) return FALSE;
2108 }
2109
2110 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2111
2112 if (tvItem->mask & TVIF_CHILDREN)
2113 {
2114 if (item->cChildren==I_CHILDRENCALLBACK)
2115 FIXME("I_CHILDRENCALLBACK not supported\n");
2116 tvItem->cChildren = item->cChildren;
2117 }
2118
2119 if (tvItem->mask & TVIF_HANDLE)
2120 tvItem->hItem = item;
2121
2122 if (tvItem->mask & TVIF_IMAGE)
2123 tvItem->iImage = item->iImage;
2124
2125 if (tvItem->mask & TVIF_INTEGRAL)
2126 tvItem->iIntegral = item->iIntegral;
2127
2128 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2129 tvItem->lParam = item->lParam;
2130
2131 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2132 tvItem->iSelectedImage = item->iSelectedImage;
2133
2134 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2135 tvItem->iExpandedImage = item->iExpandedImage;
2136
2137 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2138 tvItem->state = item->state;
2139
2140 if (tvItem->mask & TVIF_TEXT)
2141 {
2142 if (item->pszText == NULL)
2143 {
2144 if (tvItem->cchTextMax > 0)
2145 tvItem->pszText[0] = '\0';
2146 }
2147 else if (isW)
2148 {
2149 if (item->pszText == LPSTR_TEXTCALLBACKW)
2150 {
2151 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2152 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2153 }
2154 else
2155 {
2156 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2157 }
2158 }
2159 else
2160 {
2161 if (item->pszText == LPSTR_TEXTCALLBACKW)
2162 {
2164 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2165 }
2166 else
2167 {
2168 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2169 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2170 }
2171 }
2172 }
2173
2174 if (tvItem->mask & TVIF_STATEEX)
2175 {
2176 FIXME("Extended item state not supported, returning 0.\n");
2177 tvItem->uStateEx = 0;
2178 }
2179
2180 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2181 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2182
2183 return TRUE;
2184}
2185
2186/* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2187 * which is wrong. */
2188static LRESULT
2190{
2192 TREEVIEW_ITEM originalItem;
2193
2194 item = tvItem->hItem;
2195
2196 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2197 tvItem->mask);
2198
2199 if (!TREEVIEW_ValidItem(infoPtr, item))
2200 return FALSE;
2201
2202 /* store the original item values */
2203 originalItem = *item;
2204
2205 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2206 return FALSE;
2207
2208 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2209 if ((tvItem->mask & TVIF_TEXT
2210 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2211 && ISVISIBLE(item))
2212 {
2214 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2215 }
2216
2217 if (tvItem->mask != 0 && ISVISIBLE(item))
2218 {
2219 /* The refresh updates everything, but we can't wait until then. */
2221
2222 /* if any of the item's values changed and it's not a callback, redraw the item */
2223 if (item_changed(&originalItem, item, tvItem))
2224 {
2225 if (tvItem->mask & TVIF_INTEGRAL)
2226 {
2229
2230 TREEVIEW_Invalidate(infoPtr, NULL);
2231 }
2232 else
2233 {
2235 TREEVIEW_Invalidate(infoPtr, item);
2236 }
2237 }
2238 }
2239
2240 return TRUE;
2241}
2242
2243static LRESULT
2245{
2246 TRACE("\n");
2247
2248 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2249 return 0;
2250
2251 return (item->state & mask);
2252}
2253
2254static LRESULT
2256{
2257 TREEVIEW_ITEM *retval;
2258
2259 retval = 0;
2260
2261 /* handle all the global data here */
2262 switch (which)
2263 {
2264 case TVGN_CHILD: /* Special case: child of 0 is root */
2265 if (item)
2266 break;
2267 /* fall through */
2268 case TVGN_ROOT:
2269 retval = infoPtr->root->firstChild;
2270 break;
2271
2272 case TVGN_CARET:
2273 retval = infoPtr->selectedItem;
2274 break;
2275
2276 case TVGN_FIRSTVISIBLE:
2277 retval = infoPtr->firstVisible;
2278 break;
2279
2280 case TVGN_DROPHILITE:
2281 retval = infoPtr->dropItem;
2282 break;
2283
2284 case TVGN_LASTVISIBLE:
2285 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2286 break;
2287 }
2288
2289 if (retval)
2290 {
2291 TRACE("flags:0x%x, returns %p\n", which, retval);
2292 return (LRESULT)retval;
2293 }
2294
2295 if (item == TVI_ROOT) item = infoPtr->root;
2296
2297 if (!TREEVIEW_ValidItem(infoPtr, item))
2298 return FALSE;
2299
2300 switch (which)
2301 {
2302 case TVGN_NEXT:
2303 retval = item->nextSibling;
2304 break;
2305 case TVGN_PREVIOUS:
2306 retval = item->prevSibling;
2307 break;
2308 case TVGN_PARENT:
2309 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2310 break;
2311 case TVGN_CHILD:
2312 retval = item->firstChild;
2313 break;
2314 case TVGN_NEXTVISIBLE:
2315 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2316 break;
2318 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2319 break;
2320 default:
2321 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2322 break;
2323 }
2324
2325 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2326 return (LRESULT)retval;
2327}
2328
2329
2330static LRESULT
2332{
2333 TRACE(" %d\n", infoPtr->uNumItems);
2334 return (LRESULT)infoPtr->uNumItems;
2335}
2336
2337#ifdef __REACTOS__
2338static LRESULT
2340#endif
2341
2342#ifdef __REACTOS__
2343static VOID
2345#else
2346static VOID
2348#endif
2349{
2350 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2351 {
2352 static const unsigned int state_table[] = { 0, 2, 1 };
2353
2354 unsigned int state;
2355
2356 state = STATEIMAGEINDEX(item->state);
2357 TRACE("state: 0x%x\n", state);
2358 item->state &= ~TVIS_STATEIMAGEMASK;
2359
2360 if (state < 3)
2362
2363 item->state |= INDEXTOSTATEIMAGEMASK(state);
2364
2365 TRACE("state: 0x%x\n", state);
2366#ifdef __REACTOS__
2368#endif
2369 TREEVIEW_Invalidate(infoPtr, item);
2370 }
2371}
2372
2373
2374/* Painting *************************************************************/
2375
2376/* Draw the lines and expand button for an item. Also draws one section
2377 * of the line from item's parent to item's parent's next sibling. */
2378static void
2380{
2381 LONG centerx, centery;
2382 BOOL lar = ((infoPtr->dwStyle
2384 > TVS_LINESATROOT);
2385 HBRUSH hbr, hbrOld;
2386 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2387
2388 if (!lar && item->iLevel == 0)
2389 return;
2390
2391 hbr = CreateSolidBrush(clrBk);
2392 hbrOld = SelectObject(hdc, hbr);
2393
2394 centerx = (item->linesOffset + item->stateOffset) / 2;
2395 centery = (item->rect.top + item->rect.bottom) / 2;
2396
2397 if (infoPtr->dwStyle & TVS_HASLINES)
2398 {
2399 HPEN hOldPen, hNewPen;
2401 LOGBRUSH lb;
2402
2403 /* Get a dotted grey pen */
2404 lb.lbStyle = BS_SOLID;
2405 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2406 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2407 hOldPen = SelectObject(hdc, hNewPen);
2408
2409 /* Make sure the center is on a dot (using +2 instead
2410 * of +1 gives us pixel-by-pixel compat with native) */
2411 centery = (centery + 2) & ~1;
2412
2413 MoveToEx(hdc, item->stateOffset, centery, NULL);
2414 LineTo(hdc, centerx - 1, centery);
2415
2416 if (item->prevSibling || item->parent != infoPtr->root)
2417 {
2418 MoveToEx(hdc, centerx, item->rect.top, NULL);
2419 LineTo(hdc, centerx, centery);
2420 }
2421
2422 if (item->nextSibling)
2423 {
2424 MoveToEx(hdc, centerx, centery, NULL);
2425 LineTo(hdc, centerx, item->rect.bottom + 1);
2426 }
2427
2428 /* Draw the line from our parent to its next sibling. */
2429 parent = item->parent;
2430 while (parent != infoPtr->root)
2431 {
2432 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2433
2434 if (parent->nextSibling
2435 /* skip top-levels unless TVS_LINESATROOT */
2436 && parent->stateOffset > parent->linesOffset)
2437 {
2438 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2439 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2440 }
2441
2442 parent = parent->parent;
2443 }
2444
2445 SelectObject(hdc, hOldPen);
2446 DeleteObject(hNewPen);
2447 }
2448
2449 /*
2450 * Display the (+/-) signs
2451 */
2452
2453 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2454 {
2455 if (item->cChildren)
2456 {
2457 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2458 if (theme)
2459 {
2460 RECT glyphRect = item->rect;
2461 glyphRect.left = item->linesOffset;
2462 glyphRect.right = item->stateOffset;
2465 &glyphRect, NULL);
2466 }
2467 else
2468 {
2469 LONG height = item->rect.bottom - item->rect.top;
2470 LONG width = item->stateOffset - item->linesOffset;
2471 LONG rectsize = min(height, width) / 4;
2472 /* plussize = ceil(rectsize * 3/4) */
2473 LONG plussize = (rectsize + 1) * 3 / 4;
2474
2475 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2476 HPEN old_pen = SelectObject(hdc, new_pen);
2477
2478 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2479 centerx + rectsize + 2, centery + rectsize + 2);
2480
2481 SelectObject(hdc, old_pen);
2482 DeleteObject(new_pen);
2483
2484 /* draw +/- signs with current text color */
2485 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2486 old_pen = SelectObject(hdc, new_pen);
2487
2488 if (height < 18 || width < 18)
2489 {
2490 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2491 LineTo(hdc, centerx + plussize, centery);
2492
2493 if (!(item->state & TVIS_EXPANDED) ||
2494 (item->state & TVIS_EXPANDPARTIAL))
2495 {
2496 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2497 LineTo(hdc, centerx, centery + plussize);
2498 }
2499 }
2500 else
2501 {
2502 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2503 centerx + plussize, centery + 2);
2504
2505 if (!(item->state & TVIS_EXPANDED) ||
2506 (item->state & TVIS_EXPANDPARTIAL))
2507 {
2508 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2509 centerx + 2, centery + plussize);
2510 SetPixel(hdc, centerx - 1, centery, clrBk);
2511 SetPixel(hdc, centerx + 1, centery, clrBk);
2512 }
2513 }
2514
2515 SelectObject(hdc, old_pen);
2516 DeleteObject(new_pen);
2517 }
2518 }
2519 }
2520 SelectObject(hdc, hbrOld);
2521 DeleteObject(hbr);
2522}
2523
2524static void
2526{
2527 INT cditem;
2528 HFONT hOldFont;
2529 COLORREF oldTextColor, oldTextBkColor;
2530 int centery;
2531 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2532 NMTVCUSTOMDRAW nmcdhdr;
2533
2535
2536 /* - If item is drop target or it is selected and window is in focus -
2537 * use blue background (COLOR_HIGHLIGHT).
2538 * - If item is selected, window is not in focus, but it has style
2539 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2540 * - Otherwise - use background color
2541 */
2542 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2543 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2544 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2545 {
2546 if ((item->state & TVIS_DROPHILITED) || inFocus)
2547 {
2550 }
2551 else
2552 {
2554 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2555 }
2556 }
2557 else
2558 {
2559 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2560 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2562 else
2563 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2564 }
2565
2566 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2567 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2568 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2569
2570 /* The custom draw handler can query the text rectangle,
2571 * so get ready. */
2572 /* should already be known, set to 0 when changed */
2573 if (!item->textWidth)
2575
2576 cditem = 0;
2577
2578 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2579 {
2581 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2582 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2583
2584 if (cditem & CDRF_SKIPDEFAULT)
2585 {
2586 SelectObject(hdc, hOldFont);
2587 return;
2588 }
2589 }
2590
2591 if (cditem & CDRF_NEWFONT)
2593
2594 if (TREEVIEW_IsFullRowSelect(infoPtr))
2595 {
2596 HBRUSH brush = CreateSolidBrush(nmcdhdr.clrTextBk);
2597 FillRect(hdc, &item->rect, brush);
2598 DeleteObject(brush);
2599 }
2600
2601 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2602
2603 /* reset colors. Custom draw handler can change them */
2604 SetTextColor(hdc, nmcdhdr.clrText);
2605 SetBkColor(hdc, nmcdhdr.clrTextBk);
2606
2607 centery = (item->rect.top + item->rect.bottom) / 2;
2608
2609 /*
2610 * Display the images associated with this item
2611 */
2612 {
2613 INT imageIndex;
2614
2615 /* State images are displayed to the left of the Normal image
2616 * image number is in state; zero should be `display no image'.
2617 */
2618 imageIndex = STATEIMAGEINDEX(item->state);
2619
2620 if (infoPtr->himlState && imageIndex)
2621 {
2622 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2623 item->stateOffset,
2624 centery - infoPtr->stateImageHeight / 2,
2625 ILD_NORMAL);
2626 }
2627
2628 /* Now, draw the normal image; can be either selected,
2629 * non-selected or expanded image.
2630 */
2631
2632 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2633 {
2634 /* The item is currently selected */
2635 imageIndex = item->iSelectedImage;
2636 }
2637 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2638 {
2639 /* The item is currently not selected but expanded */
2640 imageIndex = item->iExpandedImage;
2641 }
2642 else
2643 {
2644 /* The item is not selected and not expanded */
2645 imageIndex = item->iImage;
2646 }
2647
2648 if (infoPtr->himlNormal)
2649 {
2651
2652 style |= item->state & TVIS_OVERLAYMASK;
2653
2654 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2655 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2656 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2657 style);
2658 }
2659 }
2660
2661
2662 /*
2663 * Display the text associated with this item
2664 */
2665
2666 /* Don't paint item's text if it's being edited */
2667 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2668 {
2669 if (item->pszText)
2670 {
2671 RECT rcText;
2672 UINT align;
2673 SIZE sz;
2674
2675 rcText.top = item->rect.top;
2676 rcText.bottom = item->rect.bottom;
2677 rcText.left = item->textOffset;
2678 rcText.right = rcText.left + item->textWidth + 4;
2679
2680 TRACE("drawing text %s at (%s)\n",
2681 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2682
2683 /* Draw it */
2684 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2685
2687 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2689 &rcText,
2690 item->pszText,
2691 lstrlenW(item->pszText),
2692 NULL);
2694
2695 /* Draw focus box around the selected item */
2696 if ((item == infoPtr->selectedItem) && inFocus)
2697 {
2698 DrawFocusRect(hdc,&rcText);
2699 }
2700 }
2701 }
2702
2703 /* Draw insertion mark if necessary */
2704
2705 if (infoPtr->insertMarkItem)
2706 TRACE("item:%d,mark:%p\n",
2707 TREEVIEW_GetItemIndex(infoPtr, item),
2708 infoPtr->insertMarkItem);
2709
2710 if (item == infoPtr->insertMarkItem)
2711 {
2712 HPEN hNewPen, hOldPen;
2713 int offset;
2714 int left, right;
2715
2716 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2717 hOldPen = SelectObject(hdc, hNewPen);
2718
2719 if (infoPtr->insertBeforeorAfter)
2720 offset = item->rect.bottom - 1;
2721 else
2722 offset = item->rect.top + 1;
2723
2724 left = item->textOffset - 2;
2725 right = item->textOffset + item->textWidth + 2;
2726
2727 MoveToEx(hdc, left, offset - 3, NULL);
2728 LineTo(hdc, left, offset + 4);
2729
2731 LineTo(hdc, right + 1, offset);
2732
2733 MoveToEx(hdc, right, offset + 3, NULL);
2734 LineTo(hdc, right, offset - 4);
2735
2736 SelectObject(hdc, hOldPen);
2737 DeleteObject(hNewPen);
2738 }
2739
2740 /* Restore the hdc state */
2741 SetTextColor(hdc, oldTextColor);
2742 SetBkColor(hdc, oldTextBkColor);
2743 SelectObject(hdc, hOldFont);
2744
2745 if (cditem & CDRF_NOTIFYPOSTPAINT)
2746 {
2748 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2749 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2750 }
2751}
2752
2753/* Computes treeHeight and treeWidth and updates the scroll bars.
2754 */
2755static void
2757{
2759 HWND hwnd = infoPtr->hwnd;
2760 BOOL vert = FALSE;
2761 BOOL horz = FALSE;
2762 SCROLLINFO si;
2763 LONG scrollX = infoPtr->scrollX;
2764
2765 infoPtr->treeWidth = 0;
2766 infoPtr->treeHeight = 0;
2767
2768 /* We iterate through all visible items in order to get the tree height
2769 * and width */
2770 item = infoPtr->root->firstChild;
2771
2772 while (item != NULL)
2773 {
2774 if (ISVISIBLE(item))
2775 {
2776 /* actually we draw text at textOffset + 2 */
2777 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2778 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2779
2780 /* This is scroll-adjusted, but we fix this below. */
2781 infoPtr->treeHeight = item->rect.bottom;
2782 }
2783
2785 }
2786
2787 /* Fix the scroll adjusted treeHeight and treeWidth. */
2788 if (infoPtr->root->firstChild)
2789 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2790
2791 infoPtr->treeWidth += infoPtr->scrollX;
2792
2793 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2794
2795 /* Adding one scroll bar may take up enough space that it forces us
2796 * to add the other as well. */
2797 if (infoPtr->treeHeight > infoPtr->clientHeight)
2798 {
2799 vert = TRUE;
2800
2801 if (infoPtr->treeWidth
2803 horz = TRUE;
2804 }
2805 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2806 horz = TRUE;
2807
2808 if (!vert && horz && infoPtr->treeHeight
2810 vert = TRUE;
2811
2812 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2813
2814 si.cbSize = sizeof(SCROLLINFO);
2816 si.nMin = 0;
2817
2818 if (vert)
2819 {
2820 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2821 if ( si.nPage && NULL != infoPtr->firstVisible)
2822 {
2823 si.nPos = infoPtr->firstVisible->visibleOrder;
2824 si.nMax = infoPtr->maxVisibleOrder - 1;
2825
2827
2828 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2830 infoPtr->uInternalStatus |= TV_VSCROLL;
2831 }
2832 else
2833 {
2834 if (infoPtr->uInternalStatus & TV_VSCROLL)
2836 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2837 }
2838 }
2839 else
2840 {
2841 if (infoPtr->uInternalStatus & TV_VSCROLL)
2843 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2844 }
2845
2846 if (horz)
2847 {
2848 si.nPage = infoPtr->clientWidth;
2849 si.nPos = infoPtr->scrollX;
2850 si.nMax = infoPtr->treeWidth - 1;
2851
2852 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2853 {
2854 si.nPos = si.nMax - max( si.nPage-1, 0 );
2855 scrollX = si.nPos;
2856 }
2857
2858 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2860 infoPtr->uInternalStatus |= TV_HSCROLL;
2861
2863 TREEVIEW_HScroll(infoPtr,
2864 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2865 }
2866 else
2867 {
2868 if (infoPtr->uInternalStatus & TV_HSCROLL)
2870 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2871
2872 scrollX = 0;
2873 if (infoPtr->scrollX != 0)
2874 {
2875 TREEVIEW_HScroll(infoPtr,
2876 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2877 }
2878 }
2879
2880 if (!horz)
2881 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2882}
2883
2884static void
2885TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2886{
2887 HBRUSH hBrush;
2888 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2889
2890 hBrush = CreateSolidBrush(clrBk);
2891 FillRect(hdc, rc, hBrush);
2892 DeleteObject(hBrush);
2893}
2894
2895/* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2896static LRESULT
2898{
2899 RECT rect;
2900
2901 TRACE("%p\n", infoPtr);
2902
2903 GetClientRect(infoPtr->hwnd, &rect);
2904 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2905
2906 return 1;
2907}
2908
2909static void
2911{
2912 HWND hwnd = infoPtr->hwnd;
2913 RECT rect = *rc;
2915
2916 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2917 {
2918 TRACE("empty window\n");
2919 return;
2920 }
2921
2923 hdc, rect);
2924
2925 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2926 {
2927 ReleaseDC(hwnd, hdc);
2928 return;
2929 }
2930
2931 for (item = infoPtr->root->firstChild;
2932 item != NULL;
2934 {
2935 if (ISVISIBLE(item))
2936 {
2937 /* Avoid unneeded calculations */
2938 if (item->rect.top > rect.bottom)
2939 break;
2940 if (item->rect.bottom < rect.top)
2941 continue;
2942
2943 TREEVIEW_DrawItem(infoPtr, hdc, item);
2944 }
2945 }
2946
2947 //
2948 // FIXME: This is correct, but is causes and infinite loop of WM_PAINT
2949 // messages, resulting in continuous painting of the scroll bar in reactos.
2950 // Comment out until the real bug is found. CORE-4912
2951 //
2952#ifndef __REACTOS__
2954#endif
2955
2956 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2957 infoPtr->cdmode =
2959}
2960
2961static inline void
2963{
2964 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2965}
2966
2967static void
2969{
2970 if (item)
2971 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2972 else
2973 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2974}
2975
2976static void
2978{
2979 RECT rc;
2980 HBITMAP hbm, hbmOld;
2981 HDC hdc, hdcScreen;
2982 int nIndex;
2983
2984 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2985
2986 hdcScreen = GetDC(0);
2987
2988 hdc = CreateCompatibleDC(hdcScreen);
2989 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2990 hbmOld = SelectObject(hdc, hbm);
2991
2992 SetRect(&rc, 0, 0, 48, 16);
2993 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2994
2995 SetRect(&rc, 18, 2, 30, 14);
2998
2999 SetRect(&rc, 34, 2, 46, 14);
3002
3003 SelectObject(hdc, hbmOld);
3004 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
3006 TRACE("checkbox index %d\n", nIndex);
3007
3009 DeleteDC(hdc);
3010 ReleaseDC(0, hdcScreen);
3011
3012 infoPtr->stateImageWidth = 16;
3013 infoPtr->stateImageHeight = 16;
3014}
3015
3016static void
3018{
3019 TREEVIEW_ITEM *child = item->firstChild;
3020
3021 item->state &= ~TVIS_STATEIMAGEMASK;
3022 item->state |= INDEXTOSTATEIMAGEMASK(1);
3023
3024 while (child)
3025 {
3026 TREEVIEW_ITEM *next = child->nextSibling;
3028 child = next;
3029 }
3030}
3031
3032static LRESULT
3034{
3035 HDC hdc;
3036 PAINTSTRUCT ps;
3037 RECT rc;
3038
3039 TRACE("(%p %p)\n", infoPtr, hdc_ref);
3040
3041 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
3042 {
3043 TREEVIEW_InitCheckboxes(infoPtr);
3044 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3045
3047 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3049 TREEVIEW_Invalidate(infoPtr, NULL);
3050 }
3051
3052 if (hdc_ref)
3053 {
3054 hdc = hdc_ref;
3055 GetClientRect(infoPtr->hwnd, &rc);
3056 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3057 }
3058 else
3059 {
3060 hdc = BeginPaint(infoPtr->hwnd, &ps);
3061 rc = ps.rcPaint;
3062 if(ps.fErase)
3063 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3064 }
3065
3066 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3067 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3068
3069 if (!hdc_ref)
3070 EndPaint(infoPtr->hwnd, &ps);
3071
3072 return 0;
3073}
3074
3075static LRESULT
3077{
3078 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3079
3080 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3081 return 0;
3082
3083 if (options & PRF_ERASEBKGND)
3084 TREEVIEW_EraseBackground(infoPtr, hdc);
3085
3086 if (options & PRF_CLIENT)
3087 {
3088 RECT rc;
3089 GetClientRect(infoPtr->hwnd, &rc);
3090 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3091 }
3092
3093 return 0;
3094}
3095
3096/* Sorting **************************************************************/
3097
3098/***************************************************************************
3099 * Forward the DPA local callback to the treeview owner callback
3100 */
3101static INT WINAPI
3103 const TVSORTCB *pCallBackSort)
3104{
3105 /* Forward the call to the client-defined callback */
3106 return pCallBackSort->lpfnCompare(first->lParam,
3107 second->lParam,
3108 pCallBackSort->lParam);
3109}
3110
3111/***************************************************************************
3112 * Treeview native sort routine: sort on item text.
3113 */
3114static INT WINAPI
3116 const TREEVIEW_INFO *infoPtr)
3117{
3119 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3120
3121 if(first->pszText && second->pszText)
3122 return lstrcmpiW(first->pszText, second->pszText);
3123 else if(first->pszText)
3124 return -1;
3125 else if(second->pszText)
3126 return 1;
3127 else
3128 return 0;
3129}
3130
3131/* Returns the number of physical children belonging to item. */
3132static INT
3134{
3135 INT cChildren = 0;
3136 HTREEITEM hti;
3137
3138 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3139 cChildren++;
3140
3141 return cChildren;
3142}
3143
3144/* Returns a DPA containing a pointer to each physical child of item in
3145 * sibling order. If item has no children, an empty DPA is returned. */
3146static HDPA
3148{
3150
3151 HDPA list = DPA_Create(8);
3152 if (list == 0) return NULL;
3153
3154 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3155 {
3156 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3157 {
3159 return NULL;
3160 }
3161 }
3162
3163 return list;
3164}
3165
3166/***************************************************************************
3167 * Setup the treeview structure with regards of the sort method
3168 * and sort the children of the TV item specified in lParam
3169 * fRecurse: currently unused. Should be zero.
3170 * parent: if pSort!=NULL, should equal pSort->hParent.
3171 * otherwise, item which child items are to be sorted.
3172 * pSort: sort method info. if NULL, sort on item text.
3173 * if non-NULL, sort on item's lParam content, and let the
3174 * application decide what that means. See also TVM_SORTCHILDRENCB.
3175 */
3176
3177static LRESULT
3179 LPTVSORTCB pSort)
3180{
3181 INT cChildren;
3182 PFNDPACOMPARE pfnCompare;
3183 LPARAM lpCompare;
3184
3185 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3186 if (parent == TVI_ROOT || parent == NULL)
3187 parent = infoPtr->root;
3188
3189 /* Check for a valid handle to the parent item */
3190 if (!TREEVIEW_ValidItem(infoPtr, parent))
3191 {
3192 ERR("invalid item hParent=%p\n", parent);
3193 return FALSE;
3194 }
3195
3196 if (pSort)
3197 {
3199 lpCompare = (LPARAM)pSort;
3200 }
3201 else
3202 {
3203 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3204 lpCompare = (LPARAM)infoPtr;
3205 }
3206
3207 cChildren = TREEVIEW_CountChildren(parent);
3208
3209 /* Make sure there is something to sort */
3210 if (cChildren > 1)
3211 {
3212 /* TREEVIEW_ITEM rechaining */
3213 INT count = 0;
3214 HTREEITEM item = 0;
3215 HTREEITEM nextItem = 0;
3216 HTREEITEM prevItem = 0;
3217
3219
3220 if (sortList == NULL)
3221 return FALSE;
3222
3223 /* let DPA sort the list */
3224 DPA_Sort(sortList, pfnCompare, lpCompare);
3225
3226 /* The order of DPA entries has been changed, so fixup the
3227 * nextSibling and prevSibling pointers. */
3228
3229 item = DPA_GetPtr(sortList, count++);
3230 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3231 {
3232 /* link the two current item together */
3233 item->nextSibling = nextItem;
3234 nextItem->prevSibling = item;
3235
3236 if (prevItem == NULL)
3237 {
3238 /* this is the first item, update the parent */
3239 parent->firstChild = item;
3240 item->prevSibling = NULL;
3241 }
3242 else
3243 {
3244 /* fix the back chaining */
3245 item->prevSibling = prevItem;
3246 }
3247
3248 /* get ready for the next one */
3249 prevItem = item;
3250 item = nextItem;
3251 }
3252
3253 /* the last item is pointed to by item and never has a sibling */
3254 item->nextSibling = NULL;
3255 parent->lastChild = item;
3256
3257 DPA_Destroy(sortList);
3258
3259 TREEVIEW_VerifyTree(infoPtr);
3260
3261 if (parent->state & TVIS_EXPANDED)
3262 {
3263 int visOrder = infoPtr->firstVisible->visibleOrder;
3264
3265 if (parent == infoPtr->root)
3267 else
3269
3270 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3271 {
3273
3274 for (item = infoPtr->root->firstChild; item != NULL;
3276 {
3277 if (item->visibleOrder == visOrder)
3278 break;
3279 }
3280
3281 if (!item) item = parent->firstChild;
3283 }
3284
3285 TREEVIEW_Invalidate(infoPtr, NULL);
3286 }
3287
3288 return TRUE;
3289 }
3290 return FALSE;
3291}
3292
3293
3294/***************************************************************************
3295 * Setup the treeview structure with regards of the sort method
3296 * and sort the children of the TV item specified in lParam
3297 */
3298static LRESULT
3300{
3301 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3302}
3303
3304
3305/***************************************************************************
3306 * Sort the children of the TV item specified in lParam.
3307 */
3308static LRESULT
3310{
3311 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3312}
3313
3314
3315/* Expansion/Collapse ***************************************************/
3316
3317static BOOL
3319 UINT action)
3320{
3324 0, item);
3325}
3326
3327static VOID
3329 UINT action)
3330{
3334 0, item);
3335}
3336
3337
3338/* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3339 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3340static BOOL
3342 BOOL bRemoveChildren, BOOL bUser)
3343{
3344 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3345 BOOL bSetSelection, bSetFirstVisible;
3346 RECT scrollRect;
3347 LONG scrollDist = 0;
3348 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3349 BOOL wasExpanded;
3350
3351 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3352
3353 if (!TREEVIEW_HasChildren(infoPtr, item))
3354 return FALSE;
3355
3356 if (bUser)
3358
3359 if (item->firstChild == NULL)
3360 return FALSE;
3361
3362 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3363 item->state &= ~TVIS_EXPANDED;
3364
3365 if (wasExpanded && bUser)
3367
3368 bSetSelection = (infoPtr->selectedItem != NULL
3369 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3370
3371 bSetFirstVisible = (infoPtr->firstVisible != NULL
3372 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3373
3374 tmpItem = item;
3375 while (tmpItem)
3376 {
3377 if (tmpItem->nextSibling)
3378 {
3379 nextItem = tmpItem->nextSibling;
3380 break;
3381 }
3382 tmpItem = tmpItem->parent;
3383 }
3384
3385 if (nextItem)
3386 scrollDist = nextItem->rect.top;
3387
3388 if (bRemoveChildren)
3389 {
3390 INT old_cChildren = item->cChildren;
3391 TRACE("TVE_COLLAPSERESET\n");
3392 item->state &= ~TVIS_EXPANDEDONCE;
3394 item->cChildren = old_cChildren;
3395 }
3396 if (!wasExpanded)
3397 return FALSE;
3398
3399 if (item->firstChild)
3400 {
3401 TREEVIEW_ITEM *i, *sibling;
3402
3403 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3404
3405 for (i = item->firstChild; i != sibling;
3406 i = TREEVIEW_GetNextListItem(infoPtr, i))
3407 {
3408 i->visibleOrder = -1;
3409 }
3410 }
3411
3413
3414 if (nextItem)
3415 scrollDist = -(scrollDist - nextItem->rect.top);
3416
3417 if (bSetSelection)
3418 {
3419 /* Don't call DoSelectItem, it sends notifications. */
3420 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3421 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3422 item->state |= TVIS_SELECTED;
3423 infoPtr->selectedItem = item;
3424 }
3425
3427
3428 scrollRect.left = 0;
3429 scrollRect.right = infoPtr->clientWidth;
3430 scrollRect.bottom = infoPtr->clientHeight;
3431
3432 if (nextItem)
3433 {
3434 scrollRect.top = nextItem->rect.top;
3435
3436 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3438 TREEVIEW_Invalidate(infoPtr, item);
3439 } else {
3440 scrollRect.top = item->rect.top;
3441 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3442 }
3443
3445 bSetFirstVisible ? item : infoPtr->firstVisible,
3446 TRUE);
3447
3448 return wasExpanded;
3449}
3450
3451static BOOL
3453 BOOL partial, BOOL user)
3454{
3455 LONG scrollDist;
3456 LONG orgNextTop = 0;
3457 RECT scrollRect;
3458 TREEVIEW_ITEM *nextItem, *tmpItem;
3459 BOOL sendsNotifications;
3460
3461 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3462
3463 if (!TREEVIEW_HasChildren(infoPtr, item))
3464 return FALSE;
3465
3466 tmpItem = item; nextItem = NULL;
3467 while (tmpItem)
3468 {
3469 if (tmpItem->nextSibling)
3470 {
3471 nextItem = tmpItem->nextSibling;
3472 break;
3473 }
3474 tmpItem = tmpItem->parent;
3475 }
3476
3477 if (nextItem)
3478 orgNextTop = nextItem->rect.top;
3479
3480 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3481
3482 sendsNotifications = user || ((item->cChildren != 0) &&
3483 !(item->state & TVIS_EXPANDEDONCE));
3484 if (sendsNotifications)
3485 {
3486 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3487 {
3488 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3489 return FALSE;
3490 }
3491 }
3492 if (!item->firstChild)
3493 return FALSE;
3494
3495 item->state |= TVIS_EXPANDED;
3496
3497 if (partial)
3498 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3499
3500 if (ISVISIBLE(item))
3501 {
3503 TREEVIEW_UpdateSubTree(infoPtr, item);
3505
3506 scrollRect.left = 0;
3507 scrollRect.bottom = infoPtr->treeHeight;
3508 scrollRect.right = infoPtr->clientWidth;
3509 if (nextItem)
3510 {
3511 scrollDist = nextItem->rect.top - orgNextTop;
3512 scrollRect.top = orgNextTop;
3513
3514 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3516 TREEVIEW_Invalidate (infoPtr, item);
3517 } else {
3518 scrollRect.top = item->rect.top;
3519 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3520 }
3521
3522 /* Scroll up so that as many children as possible are visible.
3523 * This fails when expanding causes an HScroll bar to appear, but we
3524 * don't know that yet, so the last item is obscured. */
3525 if (item->firstChild != NULL)
3526 {
3527 int nChildren = item->lastChild->visibleOrder
3528 - item->firstChild->visibleOrder + 1;
3529
3530 int visible_pos = item->visibleOrder
3531 - infoPtr->firstVisible->visibleOrder;
3532
3533 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3534
3535 if (visible_pos > 0 && nChildren > rows_below)
3536 {
3537 int scroll = nChildren - rows_below;
3538
3539 if (scroll > visible_pos)
3540 scroll = visible_pos;
3541
3542 if (scroll > 0)
3543 {
3544 TREEVIEW_ITEM *newFirstVisible
3545 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3546 scroll);
3547
3548
3549 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3550 }
3551 }
3552 }
3553 }
3554
3555 if (sendsNotifications) {
3557 item->state |= TVIS_EXPANDEDONCE;
3558 }
3559
3560 return TRUE;
3561}
3562
3563/* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3564 to mouse messages and TVM_SELECTITEM.
3565
3566 selection - previously selected item, used to collapse a part of a tree
3567 item - new selected item
3568*/
3571{
3572 TREEVIEW_ITEM *prev, *curr;
3573
3574 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3575
3577
3578 /*
3579 * Close the previous item and its ancestors as long as they are not
3580 * ancestors of the current item
3581 */
3582 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3583 {
3584 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3585 {
3586 if (curr == prev)
3587 goto finish;
3588 }
3589 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3590 }
3591
3592finish:
3593 /*
3594 * Expand the current item
3595 */
3596 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3597}
3598
3599static BOOL
3601{
3602 TRACE("item=%p, user=%d\n", item, user);
3603
3604 if (item->state & TVIS_EXPANDED)
3605 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3606 else
3607 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3608}
3609
3610static VOID
3612{
3613 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3614
3615 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3616 {
3617 if (TREEVIEW_HasChildren(infoPtr, item))
3618 TREEVIEW_ExpandAll(infoPtr, item);
3619 }
3620}
3621
3622/* Note:If the specified item is the child of a collapsed parent item,
3623 the parent's list of child items is (recursively) expanded to reveal the
3624 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3625 know if it also applies here.
3626*/
3627
3628static LRESULT
3630{
3631 if (!TREEVIEW_ValidItem(infoPtr, item))
3632 return 0;
3633
3634 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3636 flag, item->state);
3637
3638 switch (flag & TVE_TOGGLE)
3639 {
3640 case TVE_COLLAPSE:
3641 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3642 FALSE);
3643
3644 case TVE_EXPAND:
3645 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3646 FALSE);
3647
3648 case TVE_TOGGLE:
3649 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3650
3651 default:
3652 return 0;
3653 }
3654}
3655
3656/* Hit-Testing **********************************************************/
3657
3658static TREEVIEW_ITEM *
3660{
3662 LONG row;
3663
3664 if (!infoPtr->firstVisible)
3665 return NULL;
3666
3667 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3668
3669 for (item = infoPtr->firstVisible; item != NULL;
3671 {
3672 if (row >= item->visibleOrder
3673 && row < item->visibleOrder + item->iIntegral)
3674 break;
3675 }
3676
3677 return item;
3678}
3679
3680static TREEVIEW_ITEM *
3682{
3684 RECT rect;
3685 UINT status;
3686 LONG x, y;
3687
3688 lpht->hItem = 0;
3689 GetClientRect(infoPtr->hwnd, &rect);
3690 status = 0;
3691 x = lpht->pt.x;
3692 y = lpht->pt.y;
3693
3694 if (x < rect.left)
3695 {
3697 }
3698 else if (x > rect.right)
3699 {
3701 }
3702
3703 if (y < rect.top)
3704 {
3705 status |= TVHT_ABOVE;
3706 }
3707 else if (y > rect.bottom)
3708 {
3709 status |= TVHT_BELOW;
3710 }
3711
3712 if (status)
3713 {
3714 lpht->flags = status;
3715 return NULL;
3716 }
3717
3718 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3719 if (!item)
3720 {
3721 lpht->flags = TVHT_NOWHERE;
3722 return NULL;
3723 }
3724
3725 if (!item->textWidth)
3726 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
3727
3728 if (x >= item->textOffset + item->textWidth)
3729 {
3730 lpht->flags = TVHT_ONITEMRIGHT;
3731 }
3732 else if (x >= item->textOffset)
3733 {
3734 lpht->flags = TVHT_ONITEMLABEL;
3735 }
3736 else if (x >= item->imageOffset)
3737 {
3738 lpht->flags = TVHT_ONITEMICON;
3739 }
3740 else if (x >= item->stateOffset)
3741 {
3743 }
3744 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3745 {
3746 lpht->flags = TVHT_ONITEMBUTTON;
3747 }
3748 else
3749 {
3750 lpht->flags = TVHT_ONITEMINDENT;
3751 }
3752
3753 lpht->hItem = item;
3754 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3755
3756 return item;
3757}
3758
3759/* Item Label Editing ***************************************************/
3760
3761static LRESULT
3763{
3764 return (LRESULT)infoPtr->hwndEdit;
3765}
3766
3767static LRESULT CALLBACK
3769{
3771 BOOL bCancel = FALSE;
3772 LRESULT rc;
3773
3774 switch (uMsg)
3775 {
3776 case WM_PAINT:
3777 TRACE("WM_PAINT start\n");
3778 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3779 lParam);
3780 TRACE("WM_PAINT done\n");
3781 return rc;
3782
3783 case WM_KILLFOCUS:
3784 if (infoPtr->bIgnoreEditKillFocus)
3785 return TRUE;
3786 break;
3787
3788 case WM_DESTROY:
3789 {
3790 WNDPROC editProc = infoPtr->wpEditOrig;
3791 infoPtr->wpEditOrig = 0;
3793 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3794 }
3795
3796 case WM_GETDLGCODE:
3798
3799 case WM_KEYDOWN:
3800 if (wParam == VK_ESCAPE)
3801 {
3802 bCancel = TRUE;
3803 break;
3804 }
3805 else if (wParam == VK_RETURN)
3806 {
3807 break;
3808 }
3809
3810 /* fall through */
3811 default:
3812 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3813 }
3814
3815 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3816 /* eg. Using a messagebox */
3817
3818 infoPtr->bIgnoreEditKillFocus = TRUE;
3819 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3820 infoPtr->bIgnoreEditKillFocus = FALSE;
3821
3822 return 0;
3823}
3824
3825
3826/* should handle edit control messages here */
3827
3828static LRESULT
3830{
3831 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3832
3833 switch (HIWORD(wParam))
3834 {
3835 case EN_UPDATE:
3836 {
3837 /*
3838 * Adjust the edit window size
3839 */
3840 WCHAR buffer[1024];
3841 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3842 HDC hdc = GetDC(infoPtr->hwndEdit);
3843 SIZE sz;
3844 HFONT hFont, hOldFont = 0;
3845
3846 TRACE("edit=%p\n", infoPtr->hwndEdit);
3847
3848 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3849
3850 infoPtr->bLabelChanged = TRUE;
3851
3853
3854 /* Select font to get the right dimension of the string */
3855 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3856
3857 if (hFont != 0)
3858 {
3859 hOldFont = SelectObject(hdc, hFont);
3860 }
3861
3863 {
3864 TEXTMETRICW textMetric;
3865
3866 /* Add Extra spacing for the next character */
3867 GetTextMetricsW(hdc, &textMetric);
3868 sz.cx += (textMetric.tmMaxCharWidth * 2);
3869
3870 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3871 sz.cx = min(sz.cx,
3872 infoPtr->clientWidth - editItem->textOffset + 2);
3873
3874 SetWindowPos(infoPtr->hwndEdit,
3875 HWND_TOP,
3876 0,
3877 0,
3878 sz.cx,
3879 editItem->rect.bottom - editItem->rect.top + 3,
3881 }
3882
3883 if (hFont != 0)
3884 {
3885 SelectObject(hdc, hOldFont);
3886 }
3887
3888 ReleaseDC(infoPtr->hwnd, hdc);
3889 break;
3890 }
3891 case EN_KILLFOCUS:
3892 /* apparently we should respect passed handle value */
3893 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3894
3896 break;
3897
3898 default:
3899 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3900 }
3901
3902 return 0;
3903}
3904
3905static HWND
3907{
3908 HWND hwnd = infoPtr->hwnd;
3909 HWND hwndEdit;
3910 SIZE sz;
3912 HDC hdc;
3913 HFONT hOldFont=0;
3914 TEXTMETRICW textMetric;
3915
3916 TRACE("%p %p\n", hwnd, hItem);
3917 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3918 return NULL;
3919
3920 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3921 return NULL;
3922
3923 if (infoPtr->hwndEdit)
3924 return infoPtr->hwndEdit;
3925
3926 infoPtr->bLabelChanged = FALSE;
3927
3928 /* make edit item visible */
3930
3932
3933 hdc = GetDC(hwnd);
3934 /* Select the font to get appropriate metric dimensions */
3935 if (infoPtr->hFont != 0)
3936 {
3937 hOldFont = SelectObject(hdc, infoPtr->hFont);
3938 }
3939
3940 /* Get string length in pixels */
3941 if (hItem->pszText)
3943 &sz);
3944 else
3945 GetTextExtentPoint32A(hdc, "", 0, &sz);
3946
3947 /* Add Extra spacing for the next character */
3948 GetTextMetricsW(hdc, &textMetric);
3949 sz.cx += (textMetric.tmMaxCharWidth * 2);
3950
3951 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3952 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3953
3954 if (infoPtr->hFont != 0)
3955 {
3956 SelectObject(hdc, hOldFont);
3957 }
3958
3959 ReleaseDC(hwnd, hdc);
3960
3961 infoPtr->editItem = hItem;
3962
3964 WC_EDITW,
3965 0,
3968 ES_LEFT, hItem->textOffset - 2,
3969 hItem->rect.top - 1, sz.cx + 3,
3970 hItem->rect.bottom -
3971 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3972/* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3973
3974 infoPtr->hwndEdit = hwndEdit;
3975
3976 /* Get a 2D border. */
3981
3984
3986 (DWORD_PTR)
3988 if (hItem->pszText)
3990
3992 {
3994 infoPtr->hwndEdit = 0;
3995 infoPtr->editItem = NULL;
3996 return NULL;
3997 }
3998
4002
4003 return hwndEdit;
4004}
4005
4006
4007static LRESULT
4009{
4010 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
4011 NMTVDISPINFOW tvdi;
4012 BOOL bCommit;
4013 WCHAR tmpText[1024] = { '\0' };
4014 WCHAR *newText = tmpText;
4015 int iLength = 0;
4016
4017 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
4018
4019 tvdi.item.mask = 0;
4020 tvdi.item.hItem = editedItem;
4021 tvdi.item.state = editedItem->state;
4022 tvdi.item.lParam = editedItem->lParam;
4023
4024 if (!bCancel)
4025 {
4026 if (!infoPtr->bNtfUnicode)
4027 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
4028 else
4029 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
4030
4031 if (iLength >= 1023)
4032 {
4033 ERR("Insufficient space to retrieve new item label\n");
4034 }
4035
4036 tvdi.item.mask = TVIF_TEXT;
4037 tvdi.item.pszText = tmpText;
4038 tvdi.item.cchTextMax = iLength + 1;
4039 }
4040 else
4041 {
4042 tvdi.item.pszText = NULL;
4043 tvdi.item.cchTextMax = 0;
4044 }
4045
4046 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4047
4048 if (!bCancel && bCommit) /* Apply the changes */
4049 {
4050 if (!infoPtr->bNtfUnicode)
4051 {
4052 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
4053 newText = heap_alloc(len * sizeof(WCHAR));
4054 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
4055 iLength = len - 1;
4056 }
4057
4058 if (strcmpW(newText, editedItem->pszText) != 0)
4059 {
4060 WCHAR *ptr = heap_realloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4061 if (ptr == NULL)
4062 {
4063 ERR("OutOfMemory, cannot allocate space for label\n");
4064 if (newText != tmpText) heap_free(newText);
4065 DestroyWindow(infoPtr->hwndEdit);
4066 infoPtr->hwndEdit = 0;
4067 infoPtr->editItem = NULL;
4068 return FALSE;
4069 }
4070 else
4071 {
4072 editedItem->pszText = ptr;
4073 editedItem->cchTextMax = iLength + 1;
4074 strcpyW(editedItem->pszText, newText);
4075 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4076 }
4077 }
4078 if (newText != tmpText) heap_free(newText);
4079 }
4080
4081 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4082 DestroyWindow(infoPtr->hwndEdit);
4083 infoPtr->hwndEdit = 0;
4084 infoPtr->editItem = NULL;
4085 return TRUE;
4086}
4087
4088static LRESULT
4090{
4091 if (wParam != TV_EDIT_TIMER)
4092 {
4093 ERR("got unknown timer\n");
4094 return 1;
4095 }
4096
4097 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4098 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4099
4100 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4101
4102 return 0;
4103}
4104
4105
4106/* Mouse Tracking/Drag **************************************************/
4107
4108/***************************************************************************
4109 * This is quite unusual piece of code, but that's how it's implemented in
4110 * Windows.
4111 */
4112static LRESULT
4114{
4115 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4116 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4117 RECT r;
4118 MSG msg;
4119
4120 r.top = pt.y - cyDrag;
4121 r.left = pt.x - cxDrag;
4122 r.bottom = pt.y + cyDrag;
4123 r.right = pt.x + cxDrag;
4124
4125 SetCapture(infoPtr->hwnd);
4126
4127 while (1)
4128 {
4129 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4130 {
4131 if (msg.message == WM_MOUSEMOVE)
4132 {
4133