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d3d9/tests: Warn that tests were skipped if we could not load d3d9.dll.
[wine/wine64.git] / dlls / comctl32 / treeview.c
blob4fb2a3247785e1a81bf381bfe938cf13babd10fc
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: All items always! have valid (allocated) pszText field.
27 * If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
28 * of size TEXT_CALLBACK_SIZE in DoSetItem.
29 * We use callbackMask to keep track of fields to be updated.
30 *
31 * TODO:
32 * missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
33 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
34 *
35 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
36 *
37 * missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
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 #define NONAMELESSSTRUCT
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 "tmschema.h"
64 #include "wine/unicode.h"
65 #include "wine/debug.h"
66
67 /* internal structures */
68
69 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
70 {
71 UINT callbackMask;
72 UINT state;
73 UINT stateMask;
74 LPWSTR pszText;
75 int cchTextMax;
76 int iImage;
77 int iSelectedImage;
78 int cChildren;
79 LPARAM lParam;
80 int iIntegral; /* item height multiplier (1 is normal) */
81 int iLevel; /* indentation level:0=root level */
82 HTREEITEM parent; /* handle to parent or 0 if at root */
83 HTREEITEM firstChild; /* handle to first child or 0 if no child */
84 HTREEITEM lastChild;
85 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
86 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
87 RECT rect;
88 LONG linesOffset;
89 LONG stateOffset;
90 LONG imageOffset;
91 LONG textOffset;
92 LONG textWidth; /* horizontal text extent for pszText */
93 LONG visibleOrder; /* visible ordering, 0 is first visible item */
94 } TREEVIEW_ITEM;
95
96
97 typedef struct tagTREEVIEW_INFO
98 {
99 HWND hwnd;
100 HWND hwndNotify; /* Owner window to send notifications to */
101 DWORD dwStyle;
102 HTREEITEM root;
103 UINT uInternalStatus;
104 INT Timer;
105 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
106 INT cdmode; /* last custom draw setting */
107 UINT uScrollTime; /* max. time for scrolling in milliseconds */
108 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
109
110 UINT uItemHeight; /* item height */
111 BOOL bHeightSet;
112
113 LONG clientWidth; /* width of control window */
114 LONG clientHeight; /* height of control window */
115
116 LONG treeWidth; /* width of visible tree items */
117 LONG treeHeight; /* height of visible tree items */
118
119 UINT uIndent; /* indentation in pixels */
120 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
121 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
122 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
123
124 HTREEITEM firstVisible; /* handle to first visible item */
125 LONG maxVisibleOrder;
126 HTREEITEM dropItem; /* handle to item selected by drag cursor */
127 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
128 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
129 HIMAGELIST dragList; /* Bitmap of dragged item */
130 LONG scrollX;
131 COLORREF clrBk;
132 COLORREF clrText;
133 COLORREF clrLine;
134 COLORREF clrInsertMark;
135 HFONT hFont;
136 HFONT hDefaultFont;
137 HFONT hBoldFont;
138 HFONT hUnderlineFont;
139 HCURSOR hcurHand;
140 HWND hwndToolTip;
141
142 HWND hwndEdit;
143 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
144 BOOL bIgnoreEditKillFocus;
145 BOOL bLabelChanged;
146
147 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
148 HIMAGELIST himlNormal;
149 int normalImageHeight;
150 int normalImageWidth;
151 HIMAGELIST himlState;
152 int stateImageHeight;
153 int stateImageWidth;
154 HDPA items;
155
156 DWORD lastKeyPressTimestamp; /* Added */
157 WPARAM charCode; /* Added */
158 INT nSearchParamLength; /* Added */
159 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
160 } TREEVIEW_INFO;
161
162
163 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
164 #define KEY_DELAY 450
165
166 /* bitflags for infoPtr->uInternalStatus */
167
168 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
169 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
170 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
171 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
172 #define TV_RDRAG 0x10 /* dito Rbutton */
173 #define TV_RDRAGGING 0x20
174
175 /* bitflags for infoPtr->timer */
176
177 #define TV_EDIT_TIMER 2
178 #define TV_EDIT_TIMER_SET 2
179
180
181 VOID TREEVIEW_Register (VOID);
182 VOID TREEVIEW_Unregister (VOID);
183
184
185 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
186
187
188 #define TEXT_CALLBACK_SIZE 260
189
190 #define TREEVIEW_LEFT_MARGIN 8
191
192 #define MINIMUM_INDENT 19
193
194 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
195
196 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
197 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
198 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
199
200
201 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
202
203
204 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
205
206
207 static VOID TREEVIEW_Invalidate(TREEVIEW_INFO *, TREEVIEW_ITEM *);
208
209 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
210 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
211 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
212 static LRESULT TREEVIEW_RButtonUp(TREEVIEW_INFO *, LPPOINT);
213 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
214 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
215 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
216 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
217
218
219 /* Random Utilities *****************************************************/
220
221 #ifndef NDEBUG
222 static inline void
223 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
224 {
225 (void)infoPtr;
226 }
227 #else
228 /* The definition is at the end of the file. */
229 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
230 #endif
231
232 /* Returns the treeview private data if hwnd is a treeview.
233 * Otherwise returns an undefined value. */
234 static TREEVIEW_INFO *
235 TREEVIEW_GetInfoPtr(HWND hwnd)
236 {
237 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
238 }
239
240 /* Don't call this. Nothing wants an item index. */
241 static inline int
242 TREEVIEW_GetItemIndex(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
243 {
244 assert(infoPtr != NULL);
245
246 return DPA_GetPtrIndex(infoPtr->items, handle);
247 }
248
249 /* Checks if item has changed and needs to be redrawn */
250 static inline BOOL item_changed (TREEVIEW_ITEM *tiOld, TREEVIEW_ITEM *tiNew, LPTVITEMEXW tvChange)
251 {
252 /* Number of children has changed */
253 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
254 return TRUE;
255
256 /* Image has changed and it's not a callback */
257 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
258 tiNew->iImage != I_IMAGECALLBACK)
259 return TRUE;
260
261 /* Selected image has changed and it's not a callback */
262 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
263 tiNew->iSelectedImage != I_IMAGECALLBACK)
264 return TRUE;
265
266 /* Text has changed and it's not a callback */
267 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
268 tiNew->pszText != LPSTR_TEXTCALLBACKW)
269 return TRUE;
270
271 /* Indent has changed */
272 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
273 return TRUE;
274
275 /* Item state has changed */
276 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
277 return TRUE;
278
279 return FALSE;
280 }
281
282 /***************************************************************************
283 * This method checks that handle is an item for this tree.
284 */
285 static BOOL
286 TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
287 {
288 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
289 {
290 TRACE("invalid item %p\n", handle);
291 return FALSE;
292 }
293 else
294 return TRUE;
295 }
296
297 static HFONT
298 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
299 {
300 LOGFONTW font;
301
302 GetObjectW(hOrigFont, sizeof(font), &font);
303 font.lfWeight = FW_BOLD;
304 return CreateFontIndirectW(&font);
305 }
306
307 static HFONT
308 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
309 {
310 LOGFONTW font;
311
312 GetObjectW(hOrigFont, sizeof(font), &font);
313 font.lfUnderline = TRUE;
314 return CreateFontIndirectW(&font);
315 }
316
317 static inline HFONT
318 TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
319 {
320 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
321 return infoPtr->hUnderlineFont;
322 if (item->state & TVIS_BOLD)
323 return infoPtr->hBoldFont;
324 return infoPtr->hFont;
325 }
326
327 /* for trace/debugging purposes only */
328 static const char *
329 TREEVIEW_ItemName(TREEVIEW_ITEM *item)
330 {
331 if (item == NULL) return "<null item>";
332 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
333 if (item->pszText == NULL) return "<null>";
334 return debugstr_w(item->pszText);
335 }
336
337 /* An item is not a child of itself. */
338 static BOOL
339 TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
340 {
341 do
342 {
343 child = child->parent;
344 if (child == parent) return TRUE;
345 } while (child != NULL);
346
347 return FALSE;
348 }
349
350
351 /* Tree Traversal *******************************************************/
352
353 /***************************************************************************
354 * This method returns the last expanded sibling or child child item
355 * of a tree node
356 */
357 static TREEVIEW_ITEM *
358 TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
359 {
360 if (!wineItem)
361 return NULL;
362
363 while (wineItem->lastChild)
364 {
365 if (wineItem->state & TVIS_EXPANDED)
366 wineItem = wineItem->lastChild;
367 else
368 break;
369 }
370
371 if (wineItem == infoPtr->root)
372 return NULL;
373
374 return wineItem;
375 }
376
377 /***************************************************************************
378 * This method returns the previous non-hidden item in the list not
379 * considering the tree hierarchy.
380 */
381 static TREEVIEW_ITEM *
382 TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
383 {
384 if (tvItem->prevSibling)
385 {
386 /* This item has a prevSibling, get the last item in the sibling's tree. */
387 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
388
389 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
390 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
391 else
392 return upItem;
393 }
394 else
395 {
396 /* this item does not have a prevSibling, get the parent */
397 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
398 }
399 }
400
401
402 /***************************************************************************
403 * This method returns the next physical item in the treeview not
404 * considering the tree hierarchy.
405 */
406 static TREEVIEW_ITEM *
407 TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
408 {
409 assert(tvItem != NULL);
410
411 /*
412 * If this item has children and is expanded, return the first child
413 */
414 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
415 {
416 return tvItem->firstChild;
417 }
418
419
420 /*
421 * try to get the sibling
422 */
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425
426 /*
427 * Otherwise, get the parent's sibling.
428 */
429 while (tvItem->parent)
430 {
431 tvItem = tvItem->parent;
432
433 if (tvItem->nextSibling)
434 return tvItem->nextSibling;
435 }
436
437 return NULL;
438 }
439
440 /***************************************************************************
441 * This method returns the nth item starting at the given item. It returns
442 * the last item (or first) we we run out of items.
443 *
444 * Will scroll backward if count is <0.
445 * forward if count is >0.
446 */
447 static TREEVIEW_ITEM *
448 TREEVIEW_GetListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
449 LONG count)
450 {
451 TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
452 TREEVIEW_ITEM *previousItem;
453
454 assert(wineItem != NULL);
455
456 if (count > 0)
457 {
458 next_item = TREEVIEW_GetNextListItem;
459 }
460 else if (count < 0)
461 {
462 count = -count;
463 next_item = TREEVIEW_GetPrevListItem;
464 }
465 else
466 return wineItem;
467
468 do
469 {
470 previousItem = wineItem;
471 wineItem = next_item(infoPtr, wineItem);
472
473 } while (--count && wineItem != NULL);
474
475
476 return wineItem ? wineItem : previousItem;
477 }
478
479 /* Notifications ************************************************************/
480
481 static INT get_notifycode(TREEVIEW_INFO *infoPtr, INT code)
482 {
483 if (!infoPtr->bNtfUnicode) {
484 switch (code) {
485 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
486 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
487 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
488 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
489 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
490 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
491 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
492 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
493 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
494 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
495 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
496 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
497 }
498 }
499 return code;
500 }
501
502 static LRESULT
503 TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
504 {
505 TRACE("wParam=%d, lParam=%ld\n", wParam, lParam);
506 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
507 }
508
509 static BOOL
510 TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
511 {
512 NMHDR nmhdr;
513 HWND hwnd = infoPtr->hwnd;
514
515 TRACE("%d\n", code);
516 nmhdr.hwndFrom = hwnd;
517 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
518 nmhdr.code = get_notifycode(infoPtr, code);
519
520 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
521 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
522 }
523
524 static VOID
525 TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
526 {
527 tvItem->mask = mask;
528 tvItem->hItem = item;
529 tvItem->state = item->state;
530 tvItem->stateMask = 0;
531 tvItem->iImage = item->iImage;
532 tvItem->iSelectedImage = item->iSelectedImage;
533 tvItem->cChildren = item->cChildren;
534 tvItem->lParam = item->lParam;
535
536 if(mask & TVIF_TEXT)
537 {
538 if (!infoPtr->bNtfUnicode)
539 {
540 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
541 tvItem->pszText = Alloc (tvItem->cchTextMax);
542 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
543 }
544 else
545 {
546 tvItem->cchTextMax = item->cchTextMax;
547 tvItem->pszText = item->pszText;
548 }
549 }
550 else
551 {
552 tvItem->cchTextMax = 0;
553 tvItem->pszText = NULL;
554 }
555 }
556
557 static BOOL
558 TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
559 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
560 {
561 HWND hwnd = infoPtr->hwnd;
562 NMTREEVIEWW nmhdr;
563 BOOL ret;
564
565 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
566 code, action, oldItem, newItem);
567
568 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
569
570 nmhdr.hdr.hwndFrom = hwnd;
571 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
572 nmhdr.hdr.code = get_notifycode(infoPtr, code);
573 nmhdr.action = action;
574
575 if (oldItem)
576 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
577
578 if (newItem)
579 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
580
581 nmhdr.ptDrag.x = 0;
582 nmhdr.ptDrag.y = 0;
583
584 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
585 (WPARAM)nmhdr.hdr.idFrom,
586 (LPARAM)&nmhdr);
587 if (!infoPtr->bNtfUnicode)
588 {
589 Free(nmhdr.itemOld.pszText);
590 Free(nmhdr.itemNew.pszText);
591 }
592 return ret;
593 }
594
595 static BOOL
596 TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
597 HTREEITEM dragItem, POINT pt)
598 {
599 HWND hwnd = infoPtr->hwnd;
600 NMTREEVIEWW nmhdr;
601
602 TRACE("code:%d dragitem:%p\n", code, dragItem);
603
604 nmhdr.hdr.hwndFrom = hwnd;
605 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
606 nmhdr.hdr.code = get_notifycode(infoPtr, code);
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
617 (WPARAM)nmhdr.hdr.idFrom,
618 (LPARAM)&nmhdr);
619 }
620
621
622 static BOOL
623 TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
624 HDC hdc, RECT rc)
625 {
626 HWND hwnd = infoPtr->hwnd;
627 NMTVCUSTOMDRAW nmcdhdr;
628 LPNMCUSTOMDRAW nmcd;
629
630 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
631
632 nmcd = &nmcdhdr.nmcd;
633 nmcd->hdr.hwndFrom = hwnd;
634 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
635 nmcd->hdr.code = NM_CUSTOMDRAW;
636 nmcd->dwDrawStage = dwDrawStage;
637 nmcd->hdc = hdc;
638 nmcd->rc = rc;
639 nmcd->dwItemSpec = 0;
640 nmcd->uItemState = 0;
641 nmcd->lItemlParam = 0;
642 nmcdhdr.clrText = infoPtr->clrText;
643 nmcdhdr.clrTextBk = infoPtr->clrBk;
644 nmcdhdr.iLevel = 0;
645
646 return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
647 (WPARAM)nmcd->hdr.idFrom,
648 (LPARAM)&nmcdhdr);
649 }
650
651
652
653 /* FIXME: need to find out when the flags in uItemState need to be set */
654
655 static BOOL
656 TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
657 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
658 NMTVCUSTOMDRAW *nmcdhdr)
659 {
660 HWND hwnd = infoPtr->hwnd;
661 LPNMCUSTOMDRAW nmcd;
662 DWORD dwDrawStage;
663 DWORD_PTR dwItemSpec;
664 UINT uItemState;
665 INT retval;
666
667 dwDrawStage = CDDS_ITEM | uItemDrawState;
668 dwItemSpec = (DWORD_PTR)wineItem;
669 uItemState = 0;
670 if (wineItem->state & TVIS_SELECTED)
671 uItemState |= CDIS_SELECTED;
672 if (wineItem == infoPtr->selectedItem)
673 uItemState |= CDIS_FOCUS;
674 if (wineItem == infoPtr->hotItem)
675 uItemState |= CDIS_HOT;
676
677 nmcd = &nmcdhdr->nmcd;
678 nmcd->hdr.hwndFrom = hwnd;
679 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
680 nmcd->hdr.code = NM_CUSTOMDRAW;
681 nmcd->dwDrawStage = dwDrawStage;
682 nmcd->hdc = hdc;
683 nmcd->rc = wineItem->rect;
684 nmcd->dwItemSpec = dwItemSpec;
685 nmcd->uItemState = uItemState;
686 nmcd->lItemlParam = wineItem->lParam;
687 nmcdhdr->iLevel = wineItem->iLevel;
688
689 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
690 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
691 nmcd->uItemState, nmcd->lItemlParam);
692
693 retval = TREEVIEW_SendRealNotify(infoPtr,
694 (WPARAM)nmcd->hdr.idFrom,
695 (LPARAM)nmcdhdr);
696
697 return (BOOL)retval;
698 }
699
700 static BOOL
701 TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
702 {
703 HWND hwnd = infoPtr->hwnd;
704 NMTVDISPINFOW tvdi;
705 BOOL ret;
706
707 tvdi.hdr.hwndFrom = hwnd;
708 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
709 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
710
711 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
712 &tvdi.item, editItem);
713
714 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
715
716 if (!infoPtr->bNtfUnicode)
717 Free(tvdi.item.pszText);
718
719 return ret;
720 }
721
722 static void
723 TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
724 UINT mask)
725 {
726 NMTVDISPINFOW callback;
727 HWND hwnd = infoPtr->hwnd;
728
729 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
730 mask &= wineItem->callbackMask;
731
732 if (mask == 0) return;
733
734 callback.hdr.hwndFrom = hwnd;
735 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
736 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
737
738 /* 'state' always contains valid value, as well as 'lParam'.
739 * All other parameters are uninitialized.
740 */
741 callback.item.pszText = wineItem->pszText;
742 callback.item.cchTextMax = wineItem->cchTextMax;
743 callback.item.mask = mask;
744 callback.item.hItem = wineItem;
745 callback.item.state = wineItem->state;
746 callback.item.lParam = wineItem->lParam;
747
748 /* If text is changed we need to recalculate textWidth */
749 if (mask & TVIF_TEXT)
750 wineItem->textWidth = 0;
751
752 TREEVIEW_SendRealNotify(infoPtr,
753 (WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
754
755 /* It may have changed due to a call to SetItem. */
756 mask &= wineItem->callbackMask;
757
758 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
759 {
760 /* Instead of copying text into our buffer user specified its own */
761 if (!infoPtr->bNtfUnicode) {
762 LPWSTR newText;
763 int buflen;
764 int len = MultiByteToWideChar( CP_ACP, 0,
765 (LPSTR)callback.item.pszText, -1,
766 NULL, 0);
767 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
768 newText = (LPWSTR)ReAlloc(wineItem->pszText, buflen);
769
770 TRACE("returned str %s, len=%d, buflen=%d\n",
771 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
772
773 if (newText)
774 {
775 wineItem->pszText = newText;
776 MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 wineItem->pszText, buflen/sizeof(WCHAR));
779 wineItem->cchTextMax = buflen/sizeof(WCHAR);
780 }
781 /* If ReAlloc fails we have nothing to do, but keep original text */
782 }
783 else {
784 int len = max(lstrlenW(callback.item.pszText) + 1,
785 TEXT_CALLBACK_SIZE);
786 LPWSTR newText = ReAlloc(wineItem->pszText, len);
787
788 TRACE("returned wstr %s, len=%d\n",
789 debugstr_w(callback.item.pszText), len);
790
791 if (newText)
792 {
793 wineItem->pszText = newText;
794 strcpyW(wineItem->pszText, callback.item.pszText);
795 wineItem->cchTextMax = len;
796 }
797 /* If ReAlloc fails we have nothing to do, but keep original text */
798 }
799 }
800 else if (mask & TVIF_TEXT) {
801 /* User put text into our buffer, that is ok unless A string */
802 if (!infoPtr->bNtfUnicode) {
803 LPWSTR newText;
804 LPWSTR oldText = NULL;
805 int buflen;
806 int len = MultiByteToWideChar( CP_ACP, 0,
807 (LPSTR)callback.item.pszText, -1,
808 NULL, 0);
809 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
810 newText = (LPWSTR)Alloc(buflen);
811
812 TRACE("same buffer str %s, len=%d, buflen=%d\n",
813 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
814
815 if (newText)
816 {
817 oldText = wineItem->pszText;
818 wineItem->pszText = newText;
819 MultiByteToWideChar( CP_ACP, 0,
820 (LPSTR)callback.item.pszText, -1,
821 wineItem->pszText, buflen/sizeof(WCHAR));
822 wineItem->cchTextMax = buflen/sizeof(WCHAR);
823 if (oldText)
824 Free(oldText);
825 }
826 }
827 }
828
829 if (mask & TVIF_IMAGE)
830 wineItem->iImage = callback.item.iImage;
831
832 if (mask & TVIF_SELECTEDIMAGE)
833 wineItem->iSelectedImage = callback.item.iSelectedImage;
834
835 if (mask & TVIF_CHILDREN)
836 wineItem->cChildren = callback.item.cChildren;
837
838 /* These members are now permanently set. */
839 if (callback.item.mask & TVIF_DI_SETITEM)
840 wineItem->callbackMask &= ~callback.item.mask;
841 }
842
843 /***************************************************************************
844 * This function uses cChildren field to decide whether the item has
845 * children or not.
846 * Note: if this returns TRUE, the child items may not actually exist,
847 * they could be virtual.
848 *
849 * Just use wineItem->firstChild to check for physical children.
850 */
851 static BOOL
852 TREEVIEW_HasChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
853 {
854 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
855
856 return wineItem->cChildren > 0;
857 }
858
859
860 /* Item Position ********************************************************/
861
862 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
863 static VOID
864 TREEVIEW_ComputeItemInternalMetrics(TREEVIEW_INFO *infoPtr,
865 TREEVIEW_ITEM *item)
866 {
867 /* Same effect, different optimisation. */
868 #if 0
869 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
870 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
871 #else
872 BOOL lar = ((infoPtr->dwStyle
873 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
874 > TVS_LINESATROOT);
875 #endif
876
877 item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
878 - infoPtr->scrollX;
879 item->stateOffset = item->linesOffset + infoPtr->uIndent;
880 item->imageOffset = item->stateOffset
881 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
882 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
883 }
884
885 static VOID
886 TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
887 {
888 HDC hdc;
889 HFONT hOldFont=0;
890 SIZE sz;
891
892 /* DRAW's OM docker creates items like this */
893 if (item->pszText == NULL)
894 {
895 item->textWidth = 0;
896 return;
897 }
898
899 if (hDC != 0)
900 {
901 hdc = hDC;
902 }
903 else
904 {
905 hdc = GetDC(infoPtr->hwnd);
906 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
907 }
908
909 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
910 item->textWidth = sz.cx;
911
912 if (hDC == 0)
913 {
914 SelectObject(hdc, hOldFont);
915 ReleaseDC(0, hdc);
916 }
917 }
918
919 static VOID
920 TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
921 {
922 item->rect.top = infoPtr->uItemHeight *
923 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
924
925 item->rect.bottom = item->rect.top
926 + infoPtr->uItemHeight * item->iIntegral - 1;
927
928 item->rect.left = 0;
929 item->rect.right = infoPtr->clientWidth;
930 }
931
932 /* We know that only items after start need their order updated. */
933 static void
934 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
935 {
936 TREEVIEW_ITEM *item;
937 int order;
938
939 if (!start)
940 {
941 start = infoPtr->root->firstChild;
942 order = 0;
943 }
944 else
945 order = start->visibleOrder;
946
947 for (item = start; item != NULL;
948 item = TREEVIEW_GetNextListItem(infoPtr, item))
949 {
950 item->visibleOrder = order;
951 order += item->iIntegral;
952 }
953
954 infoPtr->maxVisibleOrder = order;
955
956 for (item = start; item != NULL;
957 item = TREEVIEW_GetNextListItem(infoPtr, item))
958 {
959 TREEVIEW_ComputeItemRect(infoPtr, item);
960 }
961 }
962
963
964 /* Update metrics of all items in selected subtree.
965 * root must be expanded
966 */
967 static VOID
968 TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
969 {
970 TREEVIEW_ITEM *sibling;
971 HDC hdc;
972 HFONT hOldFont;
973
974 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
975 return;
976
977 root->state &= ~TVIS_EXPANDED;
978 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
979 root->state |= TVIS_EXPANDED;
980
981 hdc = GetDC(infoPtr->hwnd);
982 hOldFont = SelectObject(hdc, infoPtr->hFont);
983
984 for (; root != sibling;
985 root = TREEVIEW_GetNextListItem(infoPtr, root))
986 {
987 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
988
989 if (root->callbackMask & TVIF_TEXT)
990 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
991
992 if (root->textWidth == 0)
993 {
994 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
995 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
996 }
997 }
998
999 SelectObject(hdc, hOldFont);
1000 ReleaseDC(infoPtr->hwnd, hdc);
1001 }
1002
1003 /* Item Allocation **********************************************************/
1004
1005 static TREEVIEW_ITEM *
1006 TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
1007 {
1008 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1009
1010 if (!newItem)
1011 return NULL;
1012
1013 /* I_IMAGENONE would make more sense but this is neither what is
1014 * documented (MSDN doesn't specify) nor what Windows actually does
1015 * (it sets it to zero)... and I can so imagine an application using
1016 * inc/dec to toggle the images. */
1017 newItem->iImage = 0;
1018 newItem->iSelectedImage = 0;
1019
1020 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1021 {
1022 Free(newItem);
1023 return NULL;
1024 }
1025
1026 return newItem;
1027 }
1028
1029 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1030 * free item->pszText. */
1031 static void
1032 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1033 {
1034 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1035 Free(item);
1036 if (infoPtr->selectedItem == item)
1037 infoPtr->selectedItem = NULL;
1038 if (infoPtr->hotItem == item)
1039 infoPtr->hotItem = NULL;
1040 if (infoPtr->focusedItem == item)
1041 infoPtr->focusedItem = NULL;
1042 if (infoPtr->firstVisible == item)
1043 infoPtr->firstVisible = NULL;
1044 if (infoPtr->dropItem == item)
1045 infoPtr->dropItem = NULL;
1046 if (infoPtr->insertMarkItem == item)
1047 infoPtr->insertMarkItem = NULL;
1048 }
1049
1050
1051 /* Item Insertion *******************************************************/
1052
1053 /***************************************************************************
1054 * This method inserts newItem before sibling as a child of parent.
1055 * sibling can be NULL, but only if parent has no children.
1056 */
1057 static void
1058 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1059 TREEVIEW_ITEM *parent)
1060 {
1061 assert(newItem != NULL);
1062 assert(parent != NULL);
1063
1064 if (sibling != NULL)
1065 {
1066 assert(sibling->parent == parent);
1067
1068 if (sibling->prevSibling != NULL)
1069 sibling->prevSibling->nextSibling = newItem;
1070
1071 newItem->prevSibling = sibling->prevSibling;
1072 sibling->prevSibling = newItem;
1073 }
1074 else
1075 newItem->prevSibling = NULL;
1076
1077 newItem->nextSibling = sibling;
1078
1079 if (parent->firstChild == sibling)
1080 parent->firstChild = newItem;
1081
1082 if (parent->lastChild == NULL)
1083 parent->lastChild = newItem;
1084 }
1085
1086 /***************************************************************************
1087 * This method inserts newItem after sibling as a child of parent.
1088 * sibling can be NULL, but only if parent has no children.
1089 */
1090 static void
1091 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1092 TREEVIEW_ITEM *parent)
1093 {
1094 assert(newItem != NULL);
1095 assert(parent != NULL);
1096
1097 if (sibling != NULL)
1098 {
1099 assert(sibling->parent == parent);
1100
1101 if (sibling->nextSibling != NULL)
1102 sibling->nextSibling->prevSibling = newItem;
1103
1104 newItem->nextSibling = sibling->nextSibling;
1105 sibling->nextSibling = newItem;
1106 }
1107 else
1108 newItem->nextSibling = NULL;
1109
1110 newItem->prevSibling = sibling;
1111
1112 if (parent->lastChild == sibling)
1113 parent->lastChild = newItem;
1114
1115 if (parent->firstChild == NULL)
1116 parent->firstChild = newItem;
1117 }
1118
1119 static BOOL
1120 TREEVIEW_DoSetItemT(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1121 const TVITEMEXW *tvItem, BOOL isW)
1122 {
1123 UINT callbackClear = 0;
1124 UINT callbackSet = 0;
1125
1126 TRACE("item %p\n", wineItem);
1127 /* Do this first in case it fails. */
1128 if (tvItem->mask & TVIF_TEXT)
1129 {
1130 wineItem->textWidth = 0; /* force width recalculation */
1131 if (tvItem->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
1132 {
1133 int len;
1134 LPWSTR newText;
1135 if (isW)
1136 len = lstrlenW(tvItem->pszText) + 1;
1137 else
1138 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1139
1140 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1141
1142 if (newText == NULL) return FALSE;
1143
1144 callbackClear |= TVIF_TEXT;
1145
1146 wineItem->pszText = newText;
1147 wineItem->cchTextMax = len;
1148 if (isW)
1149 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1150 else
1151 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1152 wineItem->pszText, len);
1153
1154 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1155 }
1156 else
1157 {
1158 callbackSet |= TVIF_TEXT;
1159
1160 wineItem->pszText = ReAlloc(wineItem->pszText,
1161 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1162 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1163 TRACE("setting callback, item %p\n", wineItem);
1164 }
1165 }
1166
1167 if (tvItem->mask & TVIF_CHILDREN)
1168 {
1169 wineItem->cChildren = tvItem->cChildren;
1170
1171 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1172 callbackSet |= TVIF_CHILDREN;
1173 else
1174 callbackClear |= TVIF_CHILDREN;
1175 }
1176
1177 if (tvItem->mask & TVIF_IMAGE)
1178 {
1179 wineItem->iImage = tvItem->iImage;
1180
1181 if (wineItem->iImage == I_IMAGECALLBACK)
1182 callbackSet |= TVIF_IMAGE;
1183 else
1184 callbackClear |= TVIF_IMAGE;
1185 }
1186
1187 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1188 {
1189 wineItem->iSelectedImage = tvItem->iSelectedImage;
1190
1191 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1192 callbackSet |= TVIF_SELECTEDIMAGE;
1193 else
1194 callbackClear |= TVIF_SELECTEDIMAGE;
1195 }
1196
1197 if (tvItem->mask & TVIF_PARAM)
1198 wineItem->lParam = tvItem->lParam;
1199
1200 /* If the application sets TVIF_INTEGRAL without
1201 * supplying a TVITEMEX structure, it's toast. */
1202 if (tvItem->mask & TVIF_INTEGRAL)
1203 wineItem->iIntegral = tvItem->iIntegral;
1204
1205 if (tvItem->mask & TVIF_STATE)
1206 {
1207 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1208 tvItem->stateMask);
1209 wineItem->state &= ~tvItem->stateMask;
1210 wineItem->state |= (tvItem->state & tvItem->stateMask);
1211 }
1212
1213 wineItem->callbackMask |= callbackSet;
1214 wineItem->callbackMask &= ~callbackClear;
1215
1216 return TRUE;
1217 }
1218
1219 /* Note that the new item is pre-zeroed. */
1220 static LRESULT
1221 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1222 {
1223 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1224 HTREEITEM insertAfter;
1225 TREEVIEW_ITEM *newItem, *parentItem;
1226 BOOL bTextUpdated = FALSE;
1227
1228 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1229 {
1230 parentItem = infoPtr->root;
1231 }
1232 else
1233 {
1234 parentItem = ptdi->hParent;
1235
1236 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1237 {
1238 WARN("invalid parent %p\n", parentItem);
1239 return (LRESULT)(HTREEITEM)NULL;
1240 }
1241 }
1242
1243 insertAfter = ptdi->hInsertAfter;
1244
1245 /* Validate this now for convenience. */
1246 switch ((DWORD_PTR)insertAfter)
1247 {
1248 case (DWORD_PTR)TVI_FIRST:
1249 case (DWORD_PTR)TVI_LAST:
1250 case (DWORD_PTR)TVI_SORT:
1251 break;
1252
1253 default:
1254 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1255 insertAfter->parent != parentItem)
1256 {
1257 WARN("invalid insert after %p\n", insertAfter);
1258 insertAfter = TVI_LAST;
1259 }
1260 }
1261
1262 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1263 (tvItem->mask & TVIF_TEXT)
1264 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1265 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1266 : "<no label>");
1267
1268 newItem = TREEVIEW_AllocateItem(infoPtr);
1269 if (newItem == NULL)
1270 return (LRESULT)(HTREEITEM)NULL;
1271
1272 newItem->parent = parentItem;
1273 newItem->iIntegral = 1;
1274
1275 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1276 return (LRESULT)(HTREEITEM)NULL;
1277
1278 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1279
1280 infoPtr->uNumItems++;
1281
1282 switch ((DWORD_PTR)insertAfter)
1283 {
1284 case (DWORD_PTR)TVI_FIRST:
1285 {
1286 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1287 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1288 if (infoPtr->firstVisible == originalFirst)
1289 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1290 }
1291 break;
1292
1293 case (DWORD_PTR)TVI_LAST:
1294 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1295 break;
1296
1297 /* hInsertAfter names a specific item we want to insert after */
1298 default:
1299 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1300 break;
1301
1302 case (DWORD_PTR)TVI_SORT:
1303 {
1304 TREEVIEW_ITEM *aChild;
1305 TREEVIEW_ITEM *previousChild = NULL;
1306 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1307 BOOL bItemInserted = FALSE;
1308
1309 aChild = parentItem->firstChild;
1310
1311 bTextUpdated = TRUE;
1312 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1313
1314 /* Iterate the parent children to see where we fit in */
1315 while (aChild != NULL)
1316 {
1317 INT comp;
1318
1319 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1320 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1321
1322 if (comp < 0) /* we are smaller than the current one */
1323 {
1324 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1325 if (infoPtr->firstVisible == originalFirst &&
1326 aChild == originalFirst)
1327 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1328 bItemInserted = TRUE;
1329 break;
1330 }
1331 else if (comp > 0) /* we are bigger than the current one */
1332 {
1333 previousChild = aChild;
1334
1335 /* This will help us to exit if there is no more sibling */
1336 aChild = (aChild->nextSibling == 0)
1337 ? NULL
1338 : aChild->nextSibling;
1339
1340 /* Look at the next item */
1341 continue;
1342 }
1343 else if (comp == 0)
1344 {
1345 /*
1346 * An item with this name is already existing, therefore,
1347 * we add after the one we found
1348 */
1349 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1350 bItemInserted = TRUE;
1351 break;
1352 }
1353 }
1354
1355 /*
1356 * we reach the end of the child list and the item has not
1357 * yet been inserted, therefore, insert it after the last child.
1358 */
1359 if ((!bItemInserted) && (aChild == NULL))
1360 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1361
1362 break;
1363 }
1364 }
1365
1366
1367 TRACE("new item %p; parent %p, mask %x\n", newItem,
1368 newItem->parent, tvItem->mask);
1369
1370 newItem->iLevel = newItem->parent->iLevel + 1;
1371
1372 if (newItem->parent->cChildren == 0)
1373 newItem->parent->cChildren = 1;
1374
1375 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1376 {
1377 if (STATEIMAGEINDEX(newItem->state) == 0)
1378 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1379 }
1380
1381 if (infoPtr->firstVisible == NULL)
1382 infoPtr->firstVisible = newItem;
1383
1384 TREEVIEW_VerifyTree(infoPtr);
1385
1386 if (parentItem == infoPtr->root ||
1387 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1388 {
1389 TREEVIEW_ITEM *item;
1390 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1391
1392 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1393 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1394
1395 if (!bTextUpdated)
1396 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1397
1398 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1399 TREEVIEW_UpdateScrollBars(infoPtr);
1400 /*
1401 * if the item was inserted in a visible part of the tree,
1402 * invalidate it, as well as those after it
1403 */
1404 for (item = newItem;
1405 item != NULL;
1406 item = TREEVIEW_GetNextListItem(infoPtr, item))
1407 TREEVIEW_Invalidate(infoPtr, item);
1408 }
1409 else
1410 {
1411 newItem->visibleOrder = -1;
1412
1413 /* refresh treeview if newItem is the first item inserted under parentItem */
1414 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1415 {
1416 /* parent got '+' - update it */
1417 TREEVIEW_Invalidate(infoPtr, parentItem);
1418 }
1419 }
1420
1421 return (LRESULT)newItem;
1422 }
1423
1424 /* Item Deletion ************************************************************/
1425 static void
1426 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1427
1428 static void
1429 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
1430 {
1431 TREEVIEW_ITEM *kill = parentItem->firstChild;
1432
1433 while (kill != NULL)
1434 {
1435 TREEVIEW_ITEM *next = kill->nextSibling;
1436
1437 TREEVIEW_RemoveItem(infoPtr, kill);
1438
1439 kill = next;
1440 }
1441
1442 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1443 assert(parentItem->firstChild == NULL);
1444 assert(parentItem->lastChild == NULL);
1445 }
1446
1447 static void
1448 TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
1449 {
1450 TREEVIEW_ITEM *parentItem = item->parent;
1451
1452 assert(item != NULL);
1453 assert(item->parent != NULL); /* i.e. it must not be the root */
1454
1455 if (parentItem->firstChild == item)
1456 parentItem->firstChild = item->nextSibling;
1457
1458 if (parentItem->lastChild == item)
1459 parentItem->lastChild = item->prevSibling;
1460
1461 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1462 && parentItem->cChildren > 0)
1463 parentItem->cChildren = 0;
1464
1465 if (item->prevSibling)
1466 item->prevSibling->nextSibling = item->nextSibling;
1467
1468 if (item->nextSibling)
1469 item->nextSibling->prevSibling = item->prevSibling;
1470 }
1471
1472 static void
1473 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1474 {
1475 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1476
1477 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1478 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1479
1480 if (wineItem->firstChild)
1481 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1482
1483 TREEVIEW_UnlinkItem(wineItem);
1484
1485 infoPtr->uNumItems--;
1486
1487 if (wineItem->pszText && wineItem->pszText != LPSTR_TEXTCALLBACKW)
1488 Free(wineItem->pszText);
1489
1490 TREEVIEW_FreeItem(infoPtr, wineItem);
1491 }
1492
1493
1494 /* Empty out the tree. */
1495 static void
1496 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1497 {
1498 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1499
1500 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1501 }
1502
1503 static LRESULT
1504 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1505 {
1506 TREEVIEW_ITEM *newSelection = NULL;
1507 TREEVIEW_ITEM *newFirstVisible = NULL;
1508 TREEVIEW_ITEM *parent, *prev = NULL;
1509 BOOL visible = FALSE;
1510
1511 if (wineItem == TVI_ROOT)
1512 {
1513 TRACE("TVI_ROOT\n");
1514 parent = infoPtr->root;
1515 newSelection = NULL;
1516 visible = TRUE;
1517 TREEVIEW_RemoveTree(infoPtr);
1518 }
1519 else
1520 {
1521 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1522 return FALSE;
1523
1524 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1525 parent = wineItem->parent;
1526
1527 if (ISVISIBLE(wineItem))
1528 {
1529 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1530 visible = TRUE;
1531 }
1532
1533 if (infoPtr->selectedItem != NULL
1534 && (wineItem == infoPtr->selectedItem
1535 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1536 {
1537 if (wineItem->nextSibling)
1538 newSelection = wineItem->nextSibling;
1539 else if (wineItem->parent != infoPtr->root)
1540 newSelection = wineItem->parent;
1541 else
1542 newSelection = wineItem->prevSibling;
1543 TRACE("newSelection = %p\n", newSelection);
1544 }
1545
1546 if (infoPtr->firstVisible == wineItem)
1547 {
1548 if (wineItem->nextSibling)
1549 newFirstVisible = wineItem->nextSibling;
1550 else if (wineItem->prevSibling)
1551 newFirstVisible = wineItem->prevSibling;
1552 else if (wineItem->parent != infoPtr->root)
1553 newFirstVisible = wineItem->parent;
1554 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1555 }
1556 else
1557 newFirstVisible = infoPtr->firstVisible;
1558
1559 TREEVIEW_RemoveItem(infoPtr, wineItem);
1560 }
1561
1562 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1563 if (!infoPtr->selectedItem && newSelection)
1564 {
1565 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1566 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1567 }
1568
1569 /* Validate insertMark dropItem.
1570 * hotItem ??? - used for comparison only.
1571 */
1572 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1573 infoPtr->insertMarkItem = 0;
1574
1575 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1576 infoPtr->dropItem = 0;
1577
1578 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1579 newFirstVisible = infoPtr->root->firstChild;
1580
1581 TREEVIEW_VerifyTree(infoPtr);
1582
1583
1584 if (visible)
1585 {
1586 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1587 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1588 TREEVIEW_UpdateScrollBars(infoPtr);
1589 TREEVIEW_Invalidate(infoPtr, NULL);
1590 }
1591 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1592 {
1593 /* parent lost '+/-' - update it */
1594 TREEVIEW_Invalidate(infoPtr, parent);
1595 }
1596
1597 return TRUE;
1598 }
1599
1600
1601 /* Get/Set Messages *********************************************************/
1602 static LRESULT
1603 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
1604 {
1605 if(wParam)
1606 infoPtr->bRedraw = TRUE;
1607 else
1608 infoPtr->bRedraw = FALSE;
1609
1610 return 0;
1611 }
1612
1613 static LRESULT
1614 TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
1615 {
1616 TRACE("\n");
1617 return infoPtr->uIndent;
1618 }
1619
1620 static LRESULT
1621 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1622 {
1623 TRACE("\n");
1624
1625 if (newIndent < MINIMUM_INDENT)
1626 newIndent = MINIMUM_INDENT;
1627
1628 if (infoPtr->uIndent != newIndent)
1629 {
1630 infoPtr->uIndent = newIndent;
1631 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1632 TREEVIEW_UpdateScrollBars(infoPtr);
1633 TREEVIEW_Invalidate(infoPtr, NULL);
1634 }
1635
1636 return 0;
1637 }
1638
1639
1640 static LRESULT
1641 TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
1642 {
1643 TRACE("\n");
1644 return (LRESULT)infoPtr->hwndToolTip;
1645 }
1646
1647 static LRESULT
1648 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1649 {
1650 HWND prevToolTip;
1651
1652 TRACE("\n");
1653 prevToolTip = infoPtr->hwndToolTip;
1654 infoPtr->hwndToolTip = hwndTT;
1655
1656 return (LRESULT)prevToolTip;
1657 }
1658
1659 static LRESULT
1660 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1661 {
1662 BOOL rc = infoPtr->bNtfUnicode;
1663 infoPtr->bNtfUnicode = fUnicode;
1664 return rc;
1665 }
1666
1667 static LRESULT
1668 TREEVIEW_GetUnicodeFormat(TREEVIEW_INFO *infoPtr)
1669 {
1670 return infoPtr->bNtfUnicode;
1671 }
1672
1673 static LRESULT
1674 TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
1675 {
1676 return infoPtr->uScrollTime;
1677 }
1678
1679 static LRESULT
1680 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1681 {
1682 UINT uOldScrollTime = infoPtr->uScrollTime;
1683
1684 infoPtr->uScrollTime = min(uScrollTime, 100);
1685
1686 return uOldScrollTime;
1687 }
1688
1689
1690 static LRESULT
1691 TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
1692 {
1693 TRACE("\n");
1694
1695 switch (wParam)
1696 {
1697 case (WPARAM)TVSIL_NORMAL:
1698 return (LRESULT)infoPtr->himlNormal;
1699
1700 case (WPARAM)TVSIL_STATE:
1701 return (LRESULT)infoPtr->himlState;
1702
1703 default:
1704 return 0;
1705 }
1706 }
1707
1708 #define TVHEIGHT_MIN 16
1709 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1710
1711 /* Compute the natural height for items. */
1712 static UINT
1713 TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
1714 {
1715 TEXTMETRICW tm;
1716 HDC hdc = GetDC(0);
1717 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1718 UINT height;
1719
1720 /* Height is the maximum of:
1721 * 16 (a hack because our fonts are tiny), and
1722 * The text height + border & margin, and
1723 * The size of the normal image list
1724 */
1725 GetTextMetricsW(hdc, &tm);
1726 SelectObject(hdc, hOldFont);
1727 ReleaseDC(0, hdc);
1728
1729 height = TVHEIGHT_MIN;
1730 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1731 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1732 if (height < infoPtr->normalImageHeight)
1733 height = infoPtr->normalImageHeight;
1734 return height;
1735 }
1736
1737 static LRESULT
1738 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1739 {
1740 HIMAGELIST himlOld = 0;
1741 int oldWidth = infoPtr->normalImageWidth;
1742 int oldHeight = infoPtr->normalImageHeight;
1743
1744
1745 TRACE("%x,%p\n", wParam, himlNew);
1746
1747 switch (wParam)
1748 {
1749 case (WPARAM)TVSIL_NORMAL:
1750 himlOld = infoPtr->himlNormal;
1751 infoPtr->himlNormal = himlNew;
1752
1753 if (himlNew != NULL)
1754 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1755 &infoPtr->normalImageHeight);
1756 else
1757 {
1758 infoPtr->normalImageWidth = 0;
1759 infoPtr->normalImageHeight = 0;
1760 }
1761
1762 break;
1763
1764 case (WPARAM)TVSIL_STATE:
1765 himlOld = infoPtr->himlState;
1766 infoPtr->himlState = himlNew;
1767
1768 if (himlNew != NULL)
1769 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1770 &infoPtr->stateImageHeight);
1771 else
1772 {
1773 infoPtr->stateImageWidth = 0;
1774 infoPtr->stateImageHeight = 0;
1775 }
1776
1777 break;
1778 }
1779
1780 if (oldWidth != infoPtr->normalImageWidth ||
1781 oldHeight != infoPtr->normalImageHeight)
1782 {
1783 BOOL bRecalcVisible = FALSE;
1784
1785 if (oldHeight != infoPtr->normalImageHeight &&
1786 !infoPtr->bHeightSet)
1787 {
1788 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1789 bRecalcVisible = TRUE;
1790 }
1791
1792 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1793 infoPtr->normalImageWidth != infoPtr->uIndent)
1794 {
1795 infoPtr->uIndent = infoPtr->normalImageWidth;
1796 bRecalcVisible = TRUE;
1797 }
1798
1799 if (bRecalcVisible)
1800 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1801
1802 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1803 TREEVIEW_UpdateScrollBars(infoPtr);
1804 }
1805
1806 TREEVIEW_Invalidate(infoPtr, NULL);
1807
1808 return (LRESULT)himlOld;
1809 }
1810
1811 static LRESULT
1812 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1813 {
1814 INT prevHeight = infoPtr->uItemHeight;
1815
1816 TRACE("%d\n", newHeight);
1817 if (newHeight == -1)
1818 {
1819 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1820 infoPtr->bHeightSet = FALSE;
1821 }
1822 else
1823 {
1824 infoPtr->uItemHeight = newHeight;
1825 infoPtr->bHeightSet = TRUE;
1826 }
1827
1828 /* Round down, unless we support odd ("non even") heights. */
1829 if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
1830 infoPtr->uItemHeight &= ~1;
1831
1832 if (infoPtr->uItemHeight != prevHeight)
1833 {
1834 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1835 TREEVIEW_UpdateScrollBars(infoPtr);
1836 TREEVIEW_Invalidate(infoPtr, NULL);
1837 }
1838
1839 return prevHeight;
1840 }
1841
1842 static LRESULT
1843 TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
1844 {
1845 TRACE("\n");
1846 return infoPtr->uItemHeight;
1847 }
1848
1849
1850 static LRESULT
1851 TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
1852 {
1853 TRACE("%p\n", infoPtr->hFont);
1854 return (LRESULT)infoPtr->hFont;
1855 }
1856
1857
1858 static INT CALLBACK
1859 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1860 {
1861 (void)unused;
1862
1863 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1864
1865 return 1;
1866 }
1867
1868 static LRESULT
1869 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1870 {
1871 UINT uHeight = infoPtr->uItemHeight;
1872
1873 TRACE("%p %i\n", hFont, bRedraw);
1874
1875 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1876
1877 DeleteObject(infoPtr->hBoldFont);
1878 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1879 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1880
1881 if (!infoPtr->bHeightSet)
1882 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1883
1884 if (uHeight != infoPtr->uItemHeight)
1885 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1886
1887 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1888
1889 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1890 TREEVIEW_UpdateScrollBars(infoPtr);
1891
1892 if (bRedraw)
1893 TREEVIEW_Invalidate(infoPtr, NULL);
1894
1895 return 0;
1896 }
1897
1898
1899 static LRESULT
1900 TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
1901 {
1902 TRACE("\n");
1903 return (LRESULT)infoPtr->clrLine;
1904 }
1905
1906 static LRESULT
1907 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1908 {
1909 COLORREF prevColor = infoPtr->clrLine;
1910
1911 TRACE("\n");
1912 infoPtr->clrLine = color;
1913 return (LRESULT)prevColor;
1914 }
1915
1916
1917 static LRESULT
1918 TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
1919 {
1920 TRACE("\n");
1921 return (LRESULT)infoPtr->clrText;
1922 }
1923
1924 static LRESULT
1925 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1926 {
1927 COLORREF prevColor = infoPtr->clrText;
1928
1929 TRACE("\n");
1930 infoPtr->clrText = color;
1931
1932 if (infoPtr->clrText != prevColor)
1933 TREEVIEW_Invalidate(infoPtr, NULL);
1934
1935 return (LRESULT)prevColor;
1936 }
1937
1938
1939 static LRESULT
1940 TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
1941 {
1942 TRACE("\n");
1943 return (LRESULT)infoPtr->clrBk;
1944 }
1945
1946 static LRESULT
1947 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1948 {
1949 COLORREF prevColor = infoPtr->clrBk;
1950
1951 TRACE("\n");
1952 infoPtr->clrBk = newColor;
1953
1954 if (newColor != prevColor)
1955 TREEVIEW_Invalidate(infoPtr, NULL);
1956
1957 return (LRESULT)prevColor;
1958 }
1959
1960
1961 static LRESULT
1962 TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
1963 {
1964 TRACE("\n");
1965 return (LRESULT)infoPtr->clrInsertMark;
1966 }
1967
1968 static LRESULT
1969 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1970 {
1971 COLORREF prevColor = infoPtr->clrInsertMark;
1972
1973 TRACE("%x\n", color);
1974 infoPtr->clrInsertMark = color;
1975
1976 return (LRESULT)prevColor;
1977 }
1978
1979
1980 static LRESULT
1981 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1982 {
1983 TRACE("%d %p\n", wParam, item);
1984
1985 if (!TREEVIEW_ValidItem(infoPtr, item))
1986 return 0;
1987
1988 infoPtr->insertBeforeorAfter = wParam;
1989 infoPtr->insertMarkItem = item;
1990
1991 TREEVIEW_Invalidate(infoPtr, NULL);
1992
1993 return 1;
1994 }
1995
1996
1997 /************************************************************************
1998 * Some serious braindamage here. lParam is a pointer to both the
1999 * input HTREEITEM and the output RECT.
2000 */
2001 static LRESULT
2002 TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2003 {
2004 TREEVIEW_ITEM *wineItem;
2005 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2006
2007 TRACE("\n");
2008 /*
2009 * validate parameters
2010 */
2011 if (pItem == NULL)
2012 return FALSE;
2013
2014 wineItem = *pItem;
2015 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2016 return FALSE;
2017
2018 /*
2019 * If wParam is TRUE return the text size otherwise return
2020 * the whole item size
2021 */
2022 if (fTextRect)
2023 {
2024 /* Windows does not send TVN_GETDISPINFO here. */
2025
2026 lpRect->top = wineItem->rect.top;
2027 lpRect->bottom = wineItem->rect.bottom;
2028
2029 lpRect->left = wineItem->textOffset;
2030 lpRect->right = wineItem->textOffset + wineItem->textWidth;
2031 }
2032 else
2033 {
2034 *lpRect = wineItem->rect;
2035 }
2036
2037 TRACE("%s [L:%d R:%d T:%d B:%d]\n", fTextRect ? "text" : "item",
2038 lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
2039
2040 return TRUE;
2041 }
2042
2043 static inline LRESULT
2044 TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
2045 {
2046 /* Suprise! This does not take integral height into account. */
2047 return infoPtr->clientHeight / infoPtr->uItemHeight;
2048 }
2049
2050
2051 static LRESULT
2052 TREEVIEW_GetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2053 {
2054 TREEVIEW_ITEM *wineItem;
2055
2056 wineItem = tvItem->hItem;
2057 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2058 return FALSE;
2059
2060 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2061
2062 if (tvItem->mask & TVIF_CHILDREN)
2063 {
2064 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2065 FIXME("I_CHILDRENCALLBACK not supported\n");
2066 tvItem->cChildren = wineItem->cChildren;
2067 }
2068
2069 if (tvItem->mask & TVIF_HANDLE)
2070 tvItem->hItem = wineItem;
2071
2072 if (tvItem->mask & TVIF_IMAGE)
2073 tvItem->iImage = wineItem->iImage;
2074
2075 if (tvItem->mask & TVIF_INTEGRAL)
2076 tvItem->iIntegral = wineItem->iIntegral;
2077
2078 /* undocumented: windows ignores TVIF_PARAM and
2079 * * always sets lParam
2080 */
2081 tvItem->lParam = wineItem->lParam;
2082
2083 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2084 tvItem->iSelectedImage = wineItem->iSelectedImage;
2085
2086 if (tvItem->mask & TVIF_STATE)
2087 /* Careful here - Windows ignores the stateMask when you get the state
2088 That contradicts the documentation, but makes more common sense, masking
2089 retrieval in this way seems overkill */
2090 tvItem->state = wineItem->state;
2091
2092 if (tvItem->mask & TVIF_TEXT)
2093 {
2094 if (isW)
2095 {
2096 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2097 {
2098 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2099 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2100 }
2101 else
2102 {
2103 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2104 }
2105 }
2106 else
2107 {
2108 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2109 {
2110 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2111 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2112 }
2113 else
2114 {
2115 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2116 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2117 }
2118 }
2119 }
2120 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2121 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2122
2123 return TRUE;
2124 }
2125
2126 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2127 * which is wrong. */
2128 static LRESULT
2129 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2130 {
2131 TREEVIEW_ITEM *wineItem;
2132 TREEVIEW_ITEM originalItem;
2133
2134 wineItem = tvItem->hItem;
2135
2136 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2137 tvItem->mask);
2138
2139 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2140 return FALSE;
2141
2142 /* store the orignal item values */
2143 originalItem = *wineItem;
2144
2145 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2146 return FALSE;
2147
2148 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2149 if ((tvItem->mask & TVIF_TEXT
2150 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2151 && ISVISIBLE(wineItem))
2152 {
2153 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2154 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2155 }
2156
2157 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2158 {
2159 /* The refresh updates everything, but we can't wait until then. */
2160 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2161
2162 /* if any of the item's values changed and it's not a callback, redraw the item */
2163 if (item_changed(&originalItem, wineItem, tvItem))
2164 {
2165 if (tvItem->mask & TVIF_INTEGRAL)
2166 {
2167 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2168 TREEVIEW_UpdateScrollBars(infoPtr);
2169
2170 TREEVIEW_Invalidate(infoPtr, NULL);
2171 }
2172 else
2173 {
2174 TREEVIEW_UpdateScrollBars(infoPtr);
2175 TREEVIEW_Invalidate(infoPtr, wineItem);
2176 }
2177 }
2178 }
2179
2180 return TRUE;
2181 }
2182
2183 static LRESULT
2184 TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2185 {
2186 TRACE("\n");
2187
2188 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2189 return 0;
2190
2191 return (wineItem->state & mask);
2192 }
2193
2194 static LRESULT
2195 TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2196 {
2197 TREEVIEW_ITEM *retval;
2198
2199 retval = 0;
2200
2201 /* handle all the global data here */
2202 switch (which)
2203 {
2204 case TVGN_CHILD: /* Special case: child of 0 is root */
2205 if (wineItem)
2206 break;
2207 /* fall through */
2208 case TVGN_ROOT:
2209 retval = infoPtr->root->firstChild;
2210 break;
2211
2212 case TVGN_CARET:
2213 retval = infoPtr->selectedItem;
2214 break;
2215
2216 case TVGN_FIRSTVISIBLE:
2217 retval = infoPtr->firstVisible;
2218 break;
2219
2220 case TVGN_DROPHILITE:
2221 retval = infoPtr->dropItem;
2222 break;
2223
2224 case TVGN_LASTVISIBLE:
2225 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2226 break;
2227 }
2228
2229 if (retval)
2230 {
2231 TRACE("flags:%x, returns %p\n", which, retval);
2232 return (LRESULT)retval;
2233 }
2234
2235 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2236
2237 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2238 return FALSE;
2239
2240 switch (which)
2241 {
2242 case TVGN_NEXT:
2243 retval = wineItem->nextSibling;
2244 break;
2245 case TVGN_PREVIOUS:
2246 retval = wineItem->prevSibling;
2247 break;
2248 case TVGN_PARENT:
2249 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2250 break;
2251 case TVGN_CHILD:
2252 retval = wineItem->firstChild;
2253 break;
2254 case TVGN_NEXTVISIBLE:
2255 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2256 break;
2257 case TVGN_PREVIOUSVISIBLE:
2258 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2259 break;
2260 default:
2261 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2262 break;
2263 }
2264
2265 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2266 return (LRESULT)retval;
2267 }
2268
2269
2270 static LRESULT
2271 TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
2272 {
2273 TRACE(" %d\n", infoPtr->uNumItems);
2274 return (LRESULT)infoPtr->uNumItems;
2275 }
2276
2277 static VOID
2278 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2279 {
2280 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2281 {
2282 static const unsigned int state_table[] = { 0, 2, 1 };
2283
2284 unsigned int state;
2285
2286 state = STATEIMAGEINDEX(item->state);
2287 TRACE("state:%x\n", state);
2288 item->state &= ~TVIS_STATEIMAGEMASK;
2289
2290 if (state < 3)
2291 state = state_table[state];
2292
2293 item->state |= INDEXTOSTATEIMAGEMASK(state);
2294
2295 TRACE("state:%x\n", state);
2296 TREEVIEW_Invalidate(infoPtr, item);
2297 }
2298 }
2299
2300
2301 /* Painting *************************************************************/
2302
2303 /* Draw the lines and expand button for an item. Also draws one section
2304 * of the line from item's parent to item's parent's next sibling. */
2305 static void
2306 TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2307 {
2308 LONG centerx, centery;
2309 BOOL lar = ((infoPtr->dwStyle
2310 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2311 > TVS_LINESATROOT);
2312 HBRUSH hbr, hbrOld;
2313
2314 if (!lar && item->iLevel == 0)
2315 return;
2316
2317 hbr = CreateSolidBrush(infoPtr->clrBk);
2318 hbrOld = SelectObject(hdc, hbr);
2319
2320 centerx = (item->linesOffset + item->stateOffset) / 2;
2321 centery = (item->rect.top + item->rect.bottom) / 2;
2322
2323 if (infoPtr->dwStyle & TVS_HASLINES)
2324 {
2325 HPEN hOldPen, hNewPen;
2326 HTREEITEM parent;
2327 LOGBRUSH lb;
2328
2329 /*
2330 * Get a dotted grey pen
2331 */
2332 lb.lbStyle = BS_SOLID;
2333 lb.lbColor = infoPtr->clrLine;
2334 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2335 hOldPen = SelectObject(hdc, hNewPen);
2336
2337 MoveToEx(hdc, item->stateOffset, centery, NULL);
2338 LineTo(hdc, centerx - 1, centery);
2339
2340 if (item->prevSibling || item->parent != infoPtr->root)
2341 {
2342 MoveToEx(hdc, centerx, item->rect.top, NULL);
2343 LineTo(hdc, centerx, centery);
2344 }
2345
2346 if (item->nextSibling)
2347 {
2348 MoveToEx(hdc, centerx, centery, NULL);
2349 LineTo(hdc, centerx, item->rect.bottom + 1);
2350 }
2351
2352 /* Draw the line from our parent to its next sibling. */
2353 parent = item->parent;
2354 while (parent != infoPtr->root)
2355 {
2356 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2357
2358 if (parent->nextSibling
2359 /* skip top-levels unless TVS_LINESATROOT */
2360 && parent->stateOffset > parent->linesOffset)
2361 {
2362 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2363 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2364 }
2365
2366 parent = parent->parent;
2367 }
2368
2369 SelectObject(hdc, hOldPen);
2370 DeleteObject(hNewPen);
2371 }
2372
2373 /*
2374 * Display the (+/-) signs
2375 */
2376
2377 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2378 {
2379 if (item->cChildren)
2380 {
2381 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2382 if (theme)
2383 {
2384 RECT glyphRect = item->rect;
2385 glyphRect.left = item->linesOffset;
2386 glyphRect.right = item->stateOffset;
2387 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2388 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2389 &glyphRect, NULL);
2390 }
2391 else
2392 {
2393 LONG height = item->rect.bottom - item->rect.top;
2394 LONG width = item->stateOffset - item->linesOffset;
2395 LONG rectsize = min(height, width) / 4;
2396 /* plussize = ceil(rectsize * 3/4) */
2397 LONG plussize = (rectsize + 1) * 3 / 4;
2398
2399 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2400 HPEN hOldPen = SelectObject(hdc, hNewPen);
2401
2402 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2403 centerx + rectsize + 2, centery + rectsize + 2);
2404
2405 SelectObject(hdc, hOldPen);
2406 DeleteObject(hNewPen);
2407
2408 if (height < 18 || width < 18)
2409 {
2410 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2411 LineTo(hdc, centerx + plussize, centery);
2412
2413 if (!(item->state & TVIS_EXPANDED))
2414 {
2415 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2416 LineTo(hdc, centerx, centery + plussize);
2417 }
2418 }
2419 else
2420 {
2421 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2422 centerx + plussize, centery + 2);
2423
2424 if (!(item->state & TVIS_EXPANDED))
2425 {
2426 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2427 centerx + 2, centery + plussize);
2428 SetPixel(hdc, centerx - 1, centery, infoPtr->clrBk);
2429 SetPixel(hdc, centerx + 1, centery, infoPtr->clrBk);
2430 }
2431 }
2432 }
2433 }
2434 }
2435 SelectObject(hdc, hbrOld);
2436 DeleteObject(hbr);
2437 }
2438
2439 static void
2440 TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2441 {
2442 INT cditem;
2443 HFONT hOldFont;
2444 COLORREF oldTextColor, oldTextBkColor;
2445 int centery;
2446 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2447 NMTVCUSTOMDRAW nmcdhdr;
2448
2449 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2450
2451 /* - If item is drop target or it is selected and window is in focus -
2452 * use blue background (COLOR_HIGHLIGHT).
2453 * - If item is selected, window is not in focus, but it has style
2454 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2455 * - Otherwise - use background color
2456 */
2457 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2458 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2459 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2460 {
2461 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2462 {
2463 nmcdhdr.clrTextBk = GetSysColor(COLOR_HIGHLIGHT);
2464 nmcdhdr.clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
2465 }
2466 else
2467 {
2468 nmcdhdr.clrTextBk = GetSysColor(COLOR_BTNFACE);
2469 if (infoPtr->clrText == -1)
2470 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2471 else
2472 nmcdhdr.clrText = infoPtr->clrText;
2473 }
2474 }
2475 else
2476 {
2477 nmcdhdr.clrTextBk = infoPtr->clrBk;
2478 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2479 nmcdhdr.clrText = comctl32_color.clrHighlight;
2480 else if (infoPtr->clrText == -1)
2481 nmcdhdr.clrText = GetSysColor(COLOR_WINDOWTEXT);
2482 else
2483 nmcdhdr.clrText = infoPtr->clrText;
2484 }
2485
2486 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2487
2488 /* The custom draw handler can query the text rectangle,
2489 * so get ready. */
2490 /* should already be known, set to 0 when changed */
2491 if (!wineItem->textWidth)
2492 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2493
2494 cditem = 0;
2495
2496 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2497 {
2498 cditem = TREEVIEW_SendCustomDrawItemNotify
2499 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2500 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2501
2502 if (cditem & CDRF_SKIPDEFAULT)
2503 {
2504 SelectObject(hdc, hOldFont);
2505 return;
2506 }
2507 }
2508
2509 if (cditem & CDRF_NEWFONT)
2510 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2511
2512 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2513
2514 /* Set colors. Custom draw handler can change these so we do this after it. */
2515 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2516 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2517
2518 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2519
2520 /*
2521 * Display the images associated with this item
2522 */
2523 {
2524 INT imageIndex;
2525
2526 /* State images are displayed to the left of the Normal image
2527 * image number is in state; zero should be `display no image'.
2528 */
2529 imageIndex = STATEIMAGEINDEX(wineItem->state);
2530
2531 if (infoPtr->himlState && imageIndex)
2532 {
2533 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2534 wineItem->stateOffset,
2535 centery - infoPtr->stateImageHeight / 2,
2536 ILD_NORMAL);
2537 }
2538
2539 /* Now, draw the normal image; can be either selected or
2540 * non-selected image.
2541 */
2542
2543 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2544 {
2545 /* The item is currently selected */
2546 imageIndex = wineItem->iSelectedImage;
2547 }
2548 else
2549 {
2550 /* The item is not selected */
2551 imageIndex = wineItem->iImage;
2552 }
2553
2554 if (infoPtr->himlNormal)
2555 {
2556 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2557
2558 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2559 wineItem->imageOffset,
2560 centery - infoPtr->normalImageHeight / 2,
2561 ILD_NORMAL | ovlIdx);
2562 }
2563 }
2564
2565
2566 /*
2567 * Display the text associated with this item
2568 */
2569
2570 /* Don't paint item's text if it's being edited */
2571 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2572 {
2573 if (wineItem->pszText)
2574 {
2575 RECT rcText;
2576
2577 rcText.top = wineItem->rect.top;
2578 rcText.bottom = wineItem->rect.bottom;
2579 rcText.left = wineItem->textOffset;
2580 rcText.right = rcText.left + wineItem->textWidth + 4;
2581
2582 TRACE("drawing text %s at (%d,%d)-(%d,%d)\n",
2583 debugstr_w(wineItem->pszText),
2584 rcText.left, rcText.top, rcText.right, rcText.bottom);
2585
2586 /* Draw it */
2587 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2588 ETO_CLIPPED | ETO_OPAQUE,
2589 &rcText,
2590 wineItem->pszText,
2591 lstrlenW(wineItem->pszText),
2592 NULL);
2593
2594 /* Draw the box around the selected item */
2595 if ((wineItem == infoPtr->selectedItem) && inFocus)
2596 {
2597 DrawFocusRect(hdc,&rcText);
2598 }
2599
2600 }
2601 }
2602
2603 /* Draw insertion mark if necessary */
2604
2605 if (infoPtr->insertMarkItem)
2606 TRACE("item:%d,mark:%p\n",
2607 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2608 infoPtr->insertMarkItem);
2609
2610 if (wineItem == infoPtr->insertMarkItem)
2611 {
2612 HPEN hNewPen, hOldPen;
2613 int offset;
2614 int left, right;
2615
2616 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2617 hOldPen = SelectObject(hdc, hNewPen);
2618
2619 if (infoPtr->insertBeforeorAfter)
2620 offset = wineItem->rect.bottom - 1;
2621 else
2622 offset = wineItem->rect.top + 1;
2623
2624 left = wineItem->textOffset - 2;
2625 right = wineItem->textOffset + wineItem->textWidth + 2;
2626
2627 MoveToEx(hdc, left, offset - 3, NULL);
2628 LineTo(hdc, left, offset + 4);
2629
2630 MoveToEx(hdc, left, offset, NULL);
2631 LineTo(hdc, right + 1, offset);
2632
2633 MoveToEx(hdc, right, offset + 3, NULL);
2634 LineTo(hdc, right, offset - 4);
2635
2636 SelectObject(hdc, hOldPen);
2637 DeleteObject(hNewPen);
2638 }
2639
2640 if (cditem & CDRF_NOTIFYPOSTPAINT)
2641 {
2642 cditem = TREEVIEW_SendCustomDrawItemNotify
2643 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2644 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2645 }
2646
2647 /* Restore the hdc state */
2648 SetTextColor(hdc, oldTextColor);
2649 SetBkColor(hdc, oldTextBkColor);
2650 SelectObject(hdc, hOldFont);
2651 }
2652
2653 /* Computes treeHeight and treeWidth and updates the scroll bars.
2654 */
2655 static void
2656 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2657 {
2658 TREEVIEW_ITEM *wineItem;
2659 HWND hwnd = infoPtr->hwnd;
2660 BOOL vert = FALSE;
2661 BOOL horz = FALSE;
2662 SCROLLINFO si;
2663 LONG scrollX = infoPtr->scrollX;
2664
2665 infoPtr->treeWidth = 0;
2666 infoPtr->treeHeight = 0;
2667
2668 /* We iterate through all visible items in order to get the tree height
2669 * and width */
2670 wineItem = infoPtr->root->firstChild;
2671
2672 while (wineItem != NULL)
2673 {
2674 if (ISVISIBLE(wineItem))
2675 {
2676 /* actually we draw text at textOffset + 2 */
2677 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2678 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2679
2680 /* This is scroll-adjusted, but we fix this below. */
2681 infoPtr->treeHeight = wineItem->rect.bottom;
2682 }
2683
2684 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2685 }
2686
2687 /* Fix the scroll adjusted treeHeight and treeWidth. */
2688 if (infoPtr->root->firstChild)
2689 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2690
2691 infoPtr->treeWidth += infoPtr->scrollX;
2692
2693 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2694
2695 /* Adding one scroll bar may take up enough space that it forces us
2696 * to add the other as well. */
2697 if (infoPtr->treeHeight > infoPtr->clientHeight)
2698 {
2699 vert = TRUE;
2700
2701 if (infoPtr->treeWidth
2702 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2703 horz = TRUE;
2704 }
2705 else if (infoPtr->treeWidth > infoPtr->clientWidth)
2706 horz = TRUE;
2707
2708 if (!vert && horz && infoPtr->treeHeight
2709 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2710 vert = TRUE;
2711
2712 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2713
2714 si.cbSize = sizeof(SCROLLINFO);
2715 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2716 si.nMin = 0;
2717
2718 if (vert)
2719 {
2720 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2721 if ( si.nPage && NULL != infoPtr->firstVisible)
2722 {
2723 si.nPos = infoPtr->firstVisible->visibleOrder;
2724 si.nMax = infoPtr->maxVisibleOrder - 1;
2725
2726 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2727
2728 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2729 ShowScrollBar(hwnd, SB_VERT, TRUE);
2730 infoPtr->uInternalStatus |= TV_VSCROLL;
2731 }
2732 else
2733 {
2734 if (infoPtr->uInternalStatus & TV_VSCROLL)
2735 ShowScrollBar(hwnd, SB_VERT, FALSE);
2736 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2737 }
2738 }
2739 else
2740 {
2741 if (infoPtr->uInternalStatus & TV_VSCROLL)
2742 ShowScrollBar(hwnd, SB_VERT, FALSE);
2743 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2744 }
2745
2746 if (horz)
2747 {
2748 si.nPage = infoPtr->clientWidth;
2749 si.nPos = infoPtr->scrollX;
2750 si.nMax = infoPtr->treeWidth - 1;
2751
2752 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2753 {
2754 si.nPos = si.nMax - max( si.nPage-1, 0 );
2755 scrollX = si.nPos;
2756 }
2757
2758 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2759 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2760 infoPtr->uInternalStatus |= TV_HSCROLL;
2761
2762 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2763 }
2764 else
2765 {
2766 if (infoPtr->uInternalStatus & TV_HSCROLL)
2767 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2768 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2769
2770 scrollX = 0;
2771 }
2772
2773 if (infoPtr->scrollX != scrollX)
2774 {
2775 TREEVIEW_HScroll(infoPtr,
2776 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2777 }
2778
2779 if (!horz)
2780 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2781 }
2782
2783 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2784 static LRESULT
2785 TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
2786 {
2787 HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
2788 RECT rect;
2789
2790 GetClientRect(infoPtr->hwnd, &rect);
2791 FillRect(hDC, &rect, hBrush);
2792 DeleteObject(hBrush);
2793
2794 return 1;
2795 }
2796
2797 static void
2798 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
2799 {
2800 HWND hwnd = infoPtr->hwnd;
2801 RECT rect = *rc;
2802 TREEVIEW_ITEM *wineItem;
2803
2804 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2805 {
2806 TRACE("empty window\n");
2807 return;
2808 }
2809
2810 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2811 hdc, rect);
2812
2813 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2814 {
2815 ReleaseDC(hwnd, hdc);
2816 return;
2817 }
2818
2819 for (wineItem = infoPtr->root->firstChild;
2820 wineItem != NULL;
2821 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2822 {
2823 if (ISVISIBLE(wineItem))
2824 {
2825 /* Avoid unneeded calculations */
2826 if (wineItem->rect.top > rect.bottom)
2827 break;
2828 if (wineItem->rect.bottom < rect.top)
2829 continue;
2830
2831 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2832 }
2833 }
2834
2835 TREEVIEW_UpdateScrollBars(infoPtr);
2836
2837 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2838 infoPtr->cdmode =
2839 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2840 }
2841
2842 static void
2843 TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2844 {
2845 if (item != NULL)
2846 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2847 else
2848 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2849 }
2850
2851 static LRESULT
2852 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2853 {
2854 HDC hdc;
2855 PAINTSTRUCT ps;
2856 RECT rc;
2857
2858 TRACE("\n");
2859
2860 if (wParam)
2861 {
2862 hdc = (HDC)wParam;
2863 GetClientRect(infoPtr->hwnd, &rc);
2864 TREEVIEW_EraseBackground(infoPtr, hdc);
2865 }
2866 else
2867 {
2868 hdc = BeginPaint(infoPtr->hwnd, &ps);
2869 rc = ps.rcPaint;
2870 }
2871
2872 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2873 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2874
2875 if (!wParam)
2876 EndPaint(infoPtr->hwnd, &ps);
2877
2878 return 0;
2879 }
2880
2881
2882 /* Sorting **************************************************************/
2883
2884 /***************************************************************************
2885 * Forward the DPA local callback to the treeview owner callback
2886 */
2887 static INT WINAPI
2888 TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
2889 {
2890 /* Forward the call to the client-defined callback */
2891 return pCallBackSort->lpfnCompare(first->lParam,
2892 second->lParam,
2893 pCallBackSort->lParam);
2894 }
2895
2896 /***************************************************************************
2897 * Treeview native sort routine: sort on item text.
2898 */
2899 static INT WINAPI
2900 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2901 TREEVIEW_INFO *infoPtr)
2902 {
2903 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2904 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2905
2906 if(first->pszText && second->pszText)
2907 return lstrcmpiW(first->pszText, second->pszText);
2908 else if(first->pszText)
2909 return -1;
2910 else if(second->pszText)
2911 return 1;
2912 else
2913 return 0;
2914 }
2915
2916 /* Returns the number of physical children belonging to item. */
2917 static INT
2918 TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2919 {
2920 INT cChildren = 0;
2921 HTREEITEM hti;
2922
2923 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2924 cChildren++;
2925
2926 return cChildren;
2927 }
2928
2929 /* Returns a DPA containing a pointer to each physical child of item in
2930 * sibling order. If item has no children, an empty DPA is returned. */
2931 static HDPA
2932 TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2933 {
2934 HTREEITEM child = item->firstChild;
2935
2936 HDPA list = DPA_Create(8);
2937 if (list == 0) return NULL;
2938
2939 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2940 {
2941 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2942 {
2943 DPA_Destroy(list);
2944 return NULL;
2945 }
2946 }
2947
2948 return list;
2949 }
2950
2951 /***************************************************************************
2952 * Setup the treeview structure with regards of the sort method
2953 * and sort the children of the TV item specified in lParam
2954 * fRecurse: currently unused. Should be zero.
2955 * parent: if pSort!=NULL, should equal pSort->hParent.
2956 * otherwise, item which child items are to be sorted.
2957 * pSort: sort method info. if NULL, sort on item text.
2958 * if non-NULL, sort on item's lParam content, and let the
2959 * application decide what that means. See also TVM_SORTCHILDRENCB.
2960 */
2961
2962 static LRESULT
2963 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
2964 LPTVSORTCB pSort)
2965 {
2966 INT cChildren;
2967 PFNDPACOMPARE pfnCompare;
2968 LPARAM lpCompare;
2969
2970 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2971 if (parent == TVI_ROOT || parent == NULL)
2972 parent = infoPtr->root;
2973
2974 /* Check for a valid handle to the parent item */
2975 if (!TREEVIEW_ValidItem(infoPtr, parent))
2976 {
2977 ERR("invalid item hParent=%p\n", parent);
2978 return FALSE;
2979 }
2980
2981 if (pSort)
2982 {
2983 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2984 lpCompare = (LPARAM)pSort;
2985 }
2986 else
2987 {
2988 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
2989 lpCompare = (LPARAM)infoPtr;
2990 }
2991
2992 cChildren = TREEVIEW_CountChildren(infoPtr, parent);
2993
2994 /* Make sure there is something to sort */
2995 if (cChildren > 1)
2996 {
2997 /* TREEVIEW_ITEM rechaining */
2998 INT count = 0;
2999 HTREEITEM item = 0;
3000 HTREEITEM nextItem = 0;
3001 HTREEITEM prevItem = 0;
3002
3003 HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
3004
3005 if (sortList == NULL)
3006 return FALSE;
3007
3008 /* let DPA sort the list */
3009 DPA_Sort(sortList, pfnCompare, lpCompare);
3010
3011 /* The order of DPA entries has been changed, so fixup the
3012 * nextSibling and prevSibling pointers. */
3013
3014 item = (HTREEITEM)DPA_GetPtr(sortList, count++);
3015 while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
3016 {
3017 /* link the two current item toghether */
3018 item->nextSibling = nextItem;
3019 nextItem->prevSibling = item;
3020
3021 if (prevItem == NULL)
3022 {
3023 /* this is the first item, update the parent */
3024 parent->firstChild = item;
3025 item->prevSibling = NULL;
3026 }
3027 else
3028 {
3029 /* fix the back chaining */
3030 item->prevSibling = prevItem;
3031 }
3032
3033 /* get ready for the next one */
3034 prevItem = item;
3035 item = nextItem;
3036 }
3037
3038 /* the last item is pointed to by item and never has a sibling */
3039 item->nextSibling = NULL;
3040 parent->lastChild = item;
3041
3042 DPA_Destroy(sortList);
3043
3044 TREEVIEW_VerifyTree(infoPtr);
3045
3046 if (parent->state & TVIS_EXPANDED)
3047 {
3048 int visOrder = infoPtr->firstVisible->visibleOrder;
3049
3050 if (parent == infoPtr->root)
3051 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3052 else
3053 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3054
3055 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3056 {
3057 TREEVIEW_ITEM *item;
3058
3059 for (item = infoPtr->root->firstChild; item != NULL;
3060 item = TREEVIEW_GetNextListItem(infoPtr, item))
3061 {
3062 if (item->visibleOrder == visOrder)
3063 break;
3064 }
3065
3066 if (!item) item = parent->firstChild;
3067 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3068 }
3069
3070 TREEVIEW_Invalidate(infoPtr, NULL);
3071 }
3072
3073 return TRUE;
3074 }
3075 return FALSE;
3076 }
3077
3078
3079 /***************************************************************************
3080 * Setup the treeview structure with regards of the sort method
3081 * and sort the children of the TV item specified in lParam
3082 */
3083 static LRESULT
3084 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
3085 {
3086 return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
3087 }
3088
3089
3090 /***************************************************************************
3091 * Sort the children of the TV item specified in lParam.
3092 */
3093 static LRESULT
3094 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3095 {
3096 return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
3097 }
3098
3099
3100 /* Expansion/Collapse ***************************************************/
3101
3102 static BOOL
3103 TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3104 UINT action)
3105 {
3106 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3107 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3108 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3109 0, wineItem);
3110 }
3111
3112 static VOID
3113 TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3114 UINT action)
3115 {
3116 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3117 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3118 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3119 0, wineItem);
3120 }
3121
3122
3123 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3124 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3125 static BOOL
3126 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3127 BOOL bRemoveChildren, BOOL bUser)
3128 {
3129 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3130 BOOL bSetSelection, bSetFirstVisible;
3131 RECT scrollRect;
3132 LONG scrollDist = 0;
3133 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3134
3135 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3136
3137 if (!(wineItem->state & TVIS_EXPANDED))
3138 return FALSE;
3139
3140 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3141 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3142
3143 if (wineItem->firstChild == NULL)
3144 return FALSE;
3145
3146 wineItem->state &= ~TVIS_EXPANDED;
3147
3148 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3149 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3150
3151 bSetSelection = (infoPtr->selectedItem != NULL
3152 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3153
3154 bSetFirstVisible = (infoPtr->firstVisible != NULL
3155 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3156
3157 tmpItem = wineItem;
3158 while (tmpItem)
3159 {
3160 if (tmpItem->nextSibling)
3161 {
3162 nextItem = tmpItem->nextSibling;
3163 break;
3164 }
3165 tmpItem = tmpItem->parent;
3166 }
3167
3168 if (nextItem)
3169 scrollDist = nextItem->rect.top;
3170
3171 if (bRemoveChildren)
3172 {
3173 INT old_cChildren = wineItem->cChildren;
3174 TRACE("TVE_COLLAPSERESET\n");
3175 wineItem->state &= ~TVIS_EXPANDEDONCE;
3176 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3177 wineItem->cChildren = old_cChildren;
3178 }
3179
3180 if (wineItem->firstChild)
3181 {
3182 TREEVIEW_ITEM *item, *sibling;
3183
3184 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3185
3186 for (item = wineItem->firstChild; item != sibling;
3187 item = TREEVIEW_GetNextListItem(infoPtr, item))
3188 {
3189 item->visibleOrder = -1;
3190 }
3191 }
3192
3193 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3194
3195 if (nextItem)
3196 scrollDist = -(scrollDist - nextItem->rect.top);
3197
3198 if (bSetSelection)
3199 {
3200 /* Don't call DoSelectItem, it sends notifications. */
3201 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3202 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3203 wineItem->state |= TVIS_SELECTED;
3204 infoPtr->selectedItem = wineItem;
3205 }
3206
3207 TREEVIEW_UpdateScrollBars(infoPtr);
3208
3209 scrollRect.left = 0;
3210 scrollRect.right = infoPtr->clientWidth;
3211 scrollRect.bottom = infoPtr->clientHeight;
3212
3213 if (nextItem)
3214 {
3215 scrollRect.top = nextItem->rect.top;
3216
3217 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3218 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3219 TREEVIEW_Invalidate(infoPtr, wineItem);
3220 } else {
3221 scrollRect.top = wineItem->rect.top;
3222 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3223 }
3224
3225 TREEVIEW_SetFirstVisible(infoPtr,
3226 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3227 TRUE);
3228
3229 return TRUE;
3230 }
3231
3232 static BOOL
3233 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3234 BOOL bExpandPartial, BOOL bUser)
3235 {
3236 LONG scrollDist;
3237 LONG orgNextTop = 0;
3238 RECT scrollRect;
3239 TREEVIEW_ITEM *nextItem, *tmpItem;
3240
3241 TRACE("\n");
3242
3243 if (wineItem->state & TVIS_EXPANDED)
3244 return TRUE;
3245
3246 tmpItem = wineItem; nextItem = NULL;
3247 while (tmpItem)
3248 {
3249 if (tmpItem->nextSibling)
3250 {
3251 nextItem = tmpItem->nextSibling;
3252 break;
3253 }
3254 tmpItem = tmpItem->parent;
3255 }
3256
3257 if (nextItem)
3258 orgNextTop = nextItem->rect.top;
3259
3260 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3261
3262 if (bUser || ((wineItem->cChildren != 0) &&
3263 !(wineItem->state & TVIS_EXPANDEDONCE)))
3264 {
3265 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3266 {
3267 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3268 return FALSE;
3269 }
3270
3271 if (!wineItem->firstChild)
3272 return FALSE;
3273
3274 wineItem->state |= TVIS_EXPANDED;
3275 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3276 wineItem->state |= TVIS_EXPANDEDONCE;
3277 }
3278 else
3279 {
3280 if (!wineItem->firstChild)
3281 return FALSE;
3282
3283 /* this item has already been expanded */
3284 wineItem->state |= TVIS_EXPANDED;
3285 }
3286
3287 if (bExpandPartial)
3288 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3289
3290 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3291 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3292 TREEVIEW_UpdateScrollBars(infoPtr);
3293
3294 scrollRect.left = 0;
3295 scrollRect.bottom = infoPtr->treeHeight;
3296 scrollRect.right = infoPtr->clientWidth;
3297 if (nextItem)
3298 {
3299 scrollDist = nextItem->rect.top - orgNextTop;
3300 scrollRect.top = orgNextTop;
3301
3302 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3303 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3304 TREEVIEW_Invalidate (infoPtr, wineItem);
3305 } else {
3306 scrollRect.top = wineItem->rect.top;
3307 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3308 }
3309
3310 /* Scroll up so that as many children as possible are visible.
3311 * This fails when expanding causes an HScroll bar to appear, but we
3312 * don't know that yet, so the last item is obscured. */
3313 if (wineItem->firstChild != NULL)
3314 {
3315 int nChildren = wineItem->lastChild->visibleOrder
3316 - wineItem->firstChild->visibleOrder + 1;
3317
3318 int visible_pos = wineItem->visibleOrder
3319 - infoPtr->firstVisible->visibleOrder;
3320
3321 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3322
3323 if (visible_pos > 0 && nChildren > rows_below)
3324 {
3325 int scroll = nChildren - rows_below;
3326
3327 if (scroll > visible_pos)
3328 scroll = visible_pos;
3329
3330 if (scroll > 0)
3331 {
3332 TREEVIEW_ITEM *newFirstVisible
3333 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3334 scroll);
3335
3336
3337 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3338 }
3339 }
3340 }
3341
3342 return TRUE;
3343 }
3344
3345 static BOOL
3346 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3347 {
3348 TRACE("\n");
3349
3350 if (wineItem->state & TVIS_EXPANDED)
3351 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3352 else
3353 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3354 }
3355
3356 static VOID
3357 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3358 {
3359 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3360
3361 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3362 {
3363 if (TREEVIEW_HasChildren(infoPtr, item))
3364 TREEVIEW_ExpandAll(infoPtr, item);
3365 }
3366 }
3367
3368 /* Note:If the specified item is the child of a collapsed parent item,
3369 the parent's list of child items is (recursively) expanded to reveal the
3370 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3371 know if it also applies here.
3372 */
3373
3374 static LRESULT
3375 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3376 {
3377 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3378 return 0;
3379
3380 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3381 TREEVIEW_ItemName(wineItem), flag,
3382 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3383
3384 switch (flag & TVE_TOGGLE)
3385 {
3386 case TVE_COLLAPSE:
3387 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3388 FALSE);
3389
3390 case TVE_EXPAND:
3391 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3392 FALSE);
3393
3394 case TVE_TOGGLE:
3395 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3396
3397 default:
3398 return 0;
3399 }
3400
3401 #if 0
3402 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3403 #endif
3404 }
3405
3406 /* Hit-Testing **********************************************************/
3407
3408 static TREEVIEW_ITEM *
3409 TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
3410 {
3411 TREEVIEW_ITEM *wineItem;
3412 LONG row;
3413
3414 if (!infoPtr->firstVisible)
3415 return NULL;
3416
3417 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3418
3419 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3420 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3421 {
3422 if (row >= wineItem->visibleOrder
3423 && row < wineItem->visibleOrder + wineItem->iIntegral)
3424 break;
3425 }
3426
3427 return wineItem;
3428 }
3429
3430 static LRESULT
3431 TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3432 {
3433 TREEVIEW_ITEM *wineItem;
3434 RECT rect;
3435 UINT status;
3436 LONG x, y;
3437
3438 lpht->hItem = 0;
3439 GetClientRect(infoPtr->hwnd, &rect);
3440 status = 0;
3441 x = lpht->pt.x;
3442 y = lpht->pt.y;
3443
3444 if (x < rect.left)
3445 {
3446 status |= TVHT_TOLEFT;
3447 }
3448 else if (x > rect.right)
3449 {
3450 status |= TVHT_TORIGHT;
3451 }
3452
3453 if (y < rect.top)
3454 {
3455 status |= TVHT_ABOVE;
3456 }
3457 else if (y > rect.bottom)
3458 {
3459 status |= TVHT_BELOW;
3460 }
3461
3462 if (status)
3463 {
3464 lpht->flags = status;
3465 return (LRESULT)(HTREEITEM)NULL;
3466 }
3467
3468 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3469 if (!wineItem)
3470 {
3471 lpht->flags = TVHT_NOWHERE;
3472 return (LRESULT)(HTREEITEM)NULL;
3473 }
3474
3475 if (x >= wineItem->textOffset + wineItem->textWidth)
3476 {
3477 lpht->flags = TVHT_ONITEMRIGHT;
3478 }
3479 else if (x >= wineItem->textOffset)
3480 {
3481 lpht->flags = TVHT_ONITEMLABEL;
3482 }
3483 else if (x >= wineItem->imageOffset)
3484 {
3485 lpht->flags = TVHT_ONITEMICON;
3486 }
3487 else if (x >= wineItem->stateOffset)
3488 {
3489 lpht->flags = TVHT_ONITEMSTATEICON;
3490 }
3491 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3492 {
3493 lpht->flags = TVHT_ONITEMBUTTON;
3494 }
3495 else
3496 {
3497 lpht->flags = TVHT_ONITEMINDENT;
3498 }
3499
3500 lpht->hItem = wineItem;
3501 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3502
3503 return (LRESULT)wineItem;
3504 }
3505
3506 /* Item Label Editing ***************************************************/
3507
3508 static LRESULT
3509 TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
3510 {
3511 return (LRESULT)infoPtr->hwndEdit;
3512 }
3513
3514 static LRESULT CALLBACK
3515 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3516 {
3517 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3518 BOOL bCancel = FALSE;
3519 LRESULT rc;
3520
3521 switch (uMsg)
3522 {
3523 case WM_PAINT:
3524 TRACE("WM_PAINT start\n");
3525 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3526 lParam);
3527 TRACE("WM_PAINT done\n");
3528 return rc;
3529
3530 case WM_KILLFOCUS:
3531 if (infoPtr->bIgnoreEditKillFocus)
3532 return TRUE;
3533 break;
3534
3535 case WM_GETDLGCODE:
3536 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3537
3538 case WM_KEYDOWN:
3539 if (wParam == (WPARAM)VK_ESCAPE)
3540 {
3541 bCancel = TRUE;
3542 break;
3543 }
3544 else if (wParam == (WPARAM)VK_RETURN)
3545 {
3546 break;
3547 }
3548
3549 /* fall through */
3550 default:
3551 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3552 }
3553
3554 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3555 /* eg. Using a messagebox */
3556
3557 infoPtr->bIgnoreEditKillFocus = TRUE;
3558 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3559 infoPtr->bIgnoreEditKillFocus = FALSE;
3560
3561 return 0;
3562 }
3563
3564
3565 /* should handle edit control messages here */
3566
3567 static LRESULT
3568 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3569 {
3570 TRACE("%x %ld\n", wParam, lParam);
3571
3572 switch (HIWORD(wParam))
3573 {
3574 case EN_UPDATE:
3575 {
3576 /*
3577 * Adjust the edit window size
3578 */
3579 WCHAR buffer[1024];
3580 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3581 HDC hdc = GetDC(infoPtr->hwndEdit);
3582 SIZE sz;
3583 int len;
3584 HFONT hFont, hOldFont = 0;
3585
3586 infoPtr->bLabelChanged = TRUE;
3587
3588 len = GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer));
3589
3590 /* Select font to get the right dimension of the string */
3591 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3592
3593 if (hFont != 0)
3594 {
3595 hOldFont = SelectObject(hdc, hFont);
3596 }
3597
3598 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3599 {
3600 TEXTMETRICW textMetric;
3601
3602 /* Add Extra spacing for the next character */
3603 GetTextMetricsW(hdc, &textMetric);
3604 sz.cx += (textMetric.tmMaxCharWidth * 2);
3605
3606 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3607 sz.cx = min(sz.cx,
3608 infoPtr->clientWidth - editItem->textOffset + 2);
3609
3610 SetWindowPos(infoPtr->hwndEdit,
3611 HWND_TOP,
3612 0,
3613 0,
3614 sz.cx,
3615 editItem->rect.bottom - editItem->rect.top + 3,
3616 SWP_NOMOVE | SWP_DRAWFRAME);
3617 }
3618
3619 if (hFont != 0)
3620 {
3621 SelectObject(hdc, hOldFont);
3622 }
3623
3624 ReleaseDC(infoPtr->hwnd, hdc);
3625 break;
3626 }
3627
3628 default:
3629 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3630 }
3631
3632 return 0;
3633 }
3634
3635 static HWND
3636 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3637 {
3638 HWND hwnd = infoPtr->hwnd;
3639 HWND hwndEdit;
3640 SIZE sz;
3641 TREEVIEW_ITEM *editItem = hItem;
3642 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3643 HDC hdc;
3644 HFONT hOldFont=0;
3645 TEXTMETRICW textMetric;
3646 static const WCHAR EditW[] = {'E','d','i','t',0};
3647
3648 TRACE("%p %p\n", hwnd, hItem);
3649 if (!TREEVIEW_ValidItem(infoPtr, editItem))
3650 return NULL;
3651
3652 if (infoPtr->hwndEdit)
3653 return infoPtr->hwndEdit;
3654
3655 infoPtr->bLabelChanged = FALSE;
3656
3657 /* Make sure that edit item is selected */
3658 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
3659 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3660
3661 TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
3662
3663 hdc = GetDC(hwnd);
3664 /* Select the font to get appropriate metric dimensions */
3665 if (infoPtr->hFont != 0)
3666 {
3667 hOldFont = SelectObject(hdc, infoPtr->hFont);
3668 }
3669
3670 /* Get string length in pixels */
3671 GetTextExtentPoint32W(hdc, editItem->pszText, strlenW(editItem->pszText),
3672 &sz);
3673
3674 /* Add Extra spacing for the next character */
3675 GetTextMetricsW(hdc, &textMetric);
3676 sz.cx += (textMetric.tmMaxCharWidth * 2);
3677
3678 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3679 sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
3680
3681 if (infoPtr->hFont != 0)
3682 {
3683 SelectObject(hdc, hOldFont);
3684 }
3685
3686 ReleaseDC(hwnd, hdc);
3687 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3688 EditW,
3689 0,
3690 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3691 WS_CLIPSIBLINGS | ES_WANTRETURN |
3692 ES_LEFT, editItem->textOffset - 2,
3693 editItem->rect.top - 1, sz.cx + 3,
3694 editItem->rect.bottom -
3695 editItem->rect.top + 3, hwnd, 0, hinst, 0);
3696 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3697
3698 infoPtr->hwndEdit = hwndEdit;
3699
3700 /* Get a 2D border. */
3701 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3702 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3703 SetWindowLongW(hwndEdit, GWL_STYLE,
3704 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3705
3706 SendMessageW(hwndEdit, WM_SETFONT,
3707 (WPARAM)TREEVIEW_FontForItem(infoPtr, editItem), FALSE);
3708
3709 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3710 (DWORD_PTR)
3711 TREEVIEW_Edit_SubclassProc);
3712
3713 if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
3714 {
3715 DestroyWindow(hwndEdit);
3716 infoPtr->hwndEdit = 0;
3717 return NULL;
3718 }
3719
3720 infoPtr->selectedItem = hItem;
3721 SetWindowTextW(hwndEdit, editItem->pszText);
3722 SetFocus(hwndEdit);
3723 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3724 ShowWindow(hwndEdit, SW_SHOW);
3725
3726 return hwndEdit;
3727 }
3728
3729
3730 static LRESULT
3731 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3732 {
3733 HWND hwnd = infoPtr->hwnd;
3734 TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
3735 NMTVDISPINFOW tvdi;
3736 BOOL bCommit;
3737 WCHAR tmpText[1024] = { '\0' };
3738 WCHAR *newText = tmpText;
3739 int iLength = 0;
3740
3741 if (!infoPtr->hwndEdit)
3742 return FALSE;
3743
3744 tvdi.hdr.hwndFrom = hwnd;
3745 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3746 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3747 tvdi.item.mask = 0;
3748 tvdi.item.hItem = editedItem;
3749 tvdi.item.state = editedItem->state;
3750 tvdi.item.lParam = editedItem->lParam;
3751
3752 if (!bCancel)
3753 {
3754 if (!infoPtr->bNtfUnicode)
3755 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3756 else
3757 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3758
3759 if (iLength >= 1023)
3760 {
3761 ERR("Insufficient space to retrieve new item label\n");
3762 }
3763
3764 tvdi.item.mask = TVIF_TEXT;
3765 tvdi.item.pszText = tmpText;
3766 tvdi.item.cchTextMax = iLength + 1;
3767 }
3768 else
3769 {
3770 tvdi.item.pszText = NULL;
3771 tvdi.item.cchTextMax = 0;
3772 }
3773
3774 bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
3775 (WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
3776
3777 if (!bCancel && bCommit) /* Apply the changes */
3778 {
3779 if (!infoPtr->bNtfUnicode)
3780 {
3781 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3782 newText = Alloc(len * sizeof(WCHAR));
3783 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3784 iLength = len - 1;
3785 }
3786
3787 if (strcmpW(newText, editedItem->pszText) != 0)
3788 {
3789 if (NULL == ReAlloc(editedItem->pszText, iLength + 1))
3790 {
3791 ERR("OutOfMemory, cannot allocate space for label\n");
3792 DestroyWindow(infoPtr->hwndEdit);
3793 infoPtr->hwndEdit = 0;
3794 return FALSE;
3795 }
3796 else
3797 {
3798 editedItem->cchTextMax = iLength + 1;
3799 strcpyW(editedItem->pszText, newText);
3800 }
3801 }
3802 if(newText != tmpText) Free(newText);
3803 }
3804
3805 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3806 DestroyWindow(infoPtr->hwndEdit);
3807 infoPtr->hwndEdit = 0;
3808 return TRUE;
3809 }
3810
3811 static LRESULT
3812 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3813 {
3814 if (wParam != TV_EDIT_TIMER)
3815 {
3816 ERR("got unknown timer\n");
3817 return 1;
3818 }
3819
3820 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3821 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3822
3823 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3824
3825 return 0;
3826 }
3827
3828
3829 /* Mouse Tracking/Drag **************************************************/
3830
3831 /***************************************************************************
3832 * This is quite unusual piece of code, but that's how it's implemented in
3833 * Windows.
3834 */
3835 static LRESULT
3836 TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
3837 {
3838 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
3839 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
3840 RECT r;
3841 MSG msg;
3842
3843 r.top = pt.y - cyDrag;
3844 r.left = pt.x - cxDrag;
3845 r.bottom = pt.y + cyDrag;
3846 r.right = pt.x + cxDrag;
3847
3848 SetCapture(infoPtr->hwnd);
3849
3850 while (1)
3851 {
3852 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
3853 {
3854 if (msg.message == WM_MOUSEMOVE)
3855 {
3856 pt.x = (short)LOWORD(msg.lParam);
3857 pt.y = (short)HIWORD(msg.lParam);
3858 if (PtInRect(&r, pt))
3859 continue;
3860 else
3861 {
3862 ReleaseCapture();
3863 return 1;
3864 }
3865 }
3866 else if (msg.message >= WM_LBUTTONDOWN &&
3867 msg.message <= WM_RBUTTONDBLCLK)
3868 {
3869 if (msg.message == WM_RBUTTONUP)
3870 TREEVIEW_RButtonUp(infoPtr, &pt);
3871 break;
3872 }
3873
3874 DispatchMessageW(&msg);
3875 }
3876
3877 if (GetCapture() != infoPtr->hwnd)
3878 return 0;
3879 }
3880
3881 ReleaseCapture();
3882 return 0;
3883 }
3884
3885
3886 static LRESULT
3887 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3888 {
3889 TREEVIEW_ITEM *wineItem;
3890 TVHITTESTINFO hit;
3891
3892 TRACE("\n");
3893 SetFocus(infoPtr->hwnd);
3894
3895 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
3896 {
3897 /* If there is pending 'edit label' event - kill it now */
3898 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3899 }
3900
3901 hit.pt.x = (short)LOWORD(lParam);
3902 hit.pt.y = (short)HIWORD(lParam);
3903
3904 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
3905 if (!wineItem)
3906 return 0;
3907 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
3908
3909 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
3910 { /* FIXME! */
3911 switch (hit.flags)
3912 {
3913 case TVHT_ONITEMRIGHT:
3914 /* FIXME: we should not have sent NM_DBLCLK in this case. */
3915 break;
3916
3917 case TVHT_ONITEMINDENT:
3918 if (!(infoPtr->dwStyle & TVS_HASLINES))
3919 {
3920 break;
3921 }
3922 else
3923 {
3924 int level = hit.pt.x / infoPtr->uIndent;
3925 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
3926
3927 while (wineItem->iLevel > level)
3928 {
3929 wineItem = wineItem->parent;
3930 }
3931
3932 /* fall through */
3933 }
3934
3935 case TVHT_ONITEMLABEL:
3936 case TVHT_ONITEMICON:
3937 case TVHT_ONITEMBUTTON:
3938 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3939 break;
3940
3941 case TVHT_ONITEMSTATEICON:
3942 if (infoPtr->dwStyle & TVS_CHECKBOXES)
3943 TREEVIEW_ToggleItemState(infoPtr, wineItem);
3944 else
3945 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3946 break;
3947 }
3948 }
3949 return TRUE;
3950 }
3951
3952
3953 static LRESULT
3954 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3955 {
3956 HWND hwnd = infoPtr->hwnd;
3957 TVHITTESTINFO ht;
3958 BOOL bTrack, bDoLabelEdit;
3959 HTREEITEM tempItem;
3960
3961 /* If Edit control is active - kill it and return.
3962 * The best way to do it is to set focus to itself.
3963 * Edit control subclassed procedure will automatically call
3964 * EndEditLabelNow.
3965 */
3966 if (infoPtr->hwndEdit)
3967 {
3968 SetFocus(hwnd);
3969 return 0;
3970 }
3971
3972 ht.pt.x = (short)LOWORD(lParam);
3973 ht.pt.y = (short)HIWORD(lParam);
3974
3975 TREEVIEW_HitTest(infoPtr, &ht);
3976 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
3977
3978 /* update focusedItem and redraw both items */
3979 if(ht.hItem && (ht.flags & TVHT_ONITEM))
3980 {
3981 infoPtr->focusedItem = ht.hItem;
3982 InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
3983
3984 if(infoPtr->selectedItem)
3985 InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
3986 }
3987
3988 bTrack = (ht.flags & TVHT_ONITEM)
3989 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
3990
3991 /*
3992 * If the style allows editing and the node is already selected
3993 * and the click occurred on the item label...
3994 */
3995 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
3996 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
3997
3998 /* Send NM_CLICK right away */
3999 if (!bTrack)
4000 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4001 goto setfocus;
4002
4003 if (ht.flags & TVHT_ONITEMBUTTON)
4004 {
4005 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4006 goto setfocus;
4007 }
4008 else if (bTrack)
4009 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4010 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4011 {
4012 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4013 infoPtr->dropItem = ht.hItem;
4014
4015 /* clean up focusedItem as we dragged and won't select this item */
4016 if(infoPtr->focusedItem)
4017 {
4018 /* refresh the item that was focused */
4019 tempItem = infoPtr->focusedItem;
4020 infoPtr->focusedItem = 0;
4021 InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
4022
4023 /* refresh the selected item to return the filled background */
4024 InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
4025 }
4026
4027 return 0;
4028 }
4029 }
4030
4031 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4032 goto setfocus;
4033
4034 if (bDoLabelEdit)
4035 {
4036 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4037 KillTimer(hwnd, TV_EDIT_TIMER);
4038
4039 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4040 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4041 }
4042 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4043 {
4044 /*
4045 * if we are TVS_SINGLEEXPAND then we want this single click to
4046 * do a bunch of things.
4047 */
4048 if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
4049 (infoPtr->hwndEdit == 0))
4050 {
4051 TREEVIEW_ITEM *SelItem;
4052
4053 /*
4054 * Send the notification
4055 */
4056 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, ht.hItem, 0);
4057
4058 /*
4059 * Close the previous selection all the way to the root
4060 * as long as the new selection is not a child
4061 */
4062 if((infoPtr->selectedItem)
4063 && (infoPtr->selectedItem != ht.hItem))
4064 {
4065 BOOL closeit = TRUE;
4066 SelItem = ht.hItem;
4067
4068 /* determine if the hitItem is a child of the currently selected item */
4069 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4070 {
4071 closeit = (SelItem != infoPtr->selectedItem);
4072 SelItem = SelItem->parent;
4073 }
4074
4075 if(closeit)
4076 {
4077 if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
4078 SelItem = infoPtr->selectedItem;
4079
4080 while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
4081 {
4082 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
4083 SelItem = SelItem->parent;
4084 }
4085 }
4086 }
4087
4088 /*
4089 * Expand the current item
4090 */
4091 TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
4092 }
4093
4094 /* Select the current item */
4095 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4096 }
4097 else if (ht.flags & TVHT_ONITEMSTATEICON)
4098 {
4099 /* TVS_CHECKBOXES requires us to toggle the current state */
4100 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4101 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4102 }
4103
4104 setfocus:
4105 SetFocus(hwnd);
4106 return 0;
4107 }
4108
4109
4110 static LRESULT
4111 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4112 {
4113 TVHITTESTINFO ht;
4114
4115 if (infoPtr->hwndEdit)
4116 {
4117 SetFocus(infoPtr->hwnd);
4118 return 0;
4119 }
4120
4121 ht.pt.x = (short)LOWORD(lParam);
4122 ht.pt.y = (short)HIWORD(lParam);
4123
4124 TREEVIEW_HitTest(infoPtr, &ht);
4125
4126 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4127 {
4128 if (ht.hItem)
4129 {
4130 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4131 infoPtr->dropItem = ht.hItem;
4132 }
4133 }
4134 else
4135 {
4136 SetFocus(infoPtr->hwnd);
4137 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4138 }
4139
4140 return 0;
4141 }
4142
4143 static LRESULT
4144 TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
4145 {
4146 return 0;
4147 }
4148
4149
4150 static LRESULT
4151 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4152 {
4153 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4154 INT cx, cy;
4155 HDC hdc, htopdc;
4156 HWND hwtop;
4157 HBITMAP hbmp, hOldbmp;
4158 SIZE size;
4159 RECT rc;
4160 HFONT hOldFont;
4161
4162 TRACE("\n");
4163
4164 if (!(infoPtr->himlNormal))
4165 return 0;
4166
4167 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4168 return 0;
4169
4170 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4171
4172 hwtop = GetDesktopWindow();
4173 htopdc = GetDC(hwtop);
4174 hdc = CreateCompatibleDC(htopdc);
4175
4176 hOldFont = SelectObject(hdc, infoPtr->hFont);
4177 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4178 &size);
4179 TRACE("%d %d %s %d\n", size.cx, size.cy, debugstr_w(dragItem->pszText),
4180 strlenW(dragItem->pszText));
4181 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4182 hOldbmp = SelectObject(hdc, hbmp);
4183
4184 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4185 size.cx += cx;
4186 if (cy > size.cy)
4187 size.cy = cy;
4188
4189 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4190 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4191 ILD_NORMAL);
4192
4193 /*
4194 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4195 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4196 */
4197
4198 /* draw item text */
4199
4200 SetRect(&rc, cx, 0, size.cx, size.cy);
4201 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4202 DT_LEFT);
4203 SelectObject(hdc, hOldFont);
4204 SelectObject(hdc, hOldbmp);
4205
4206 ImageList_Add(infoPtr->dragList, hbmp, 0);
4207
4208 DeleteDC(hdc);
4209 DeleteObject(hbmp);
4210 ReleaseDC(hwtop, htopdc);
4211
4212 return (LRESULT)infoPtr->dragList;
4213 }
4214
4215 /* Selection ************************************************************/
4216
4217 static LRESULT
4218 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4219 INT cause)
4220 {
4221 TREEVIEW_ITEM *prevSelect;
4222 RECT rcFocused;
4223
4224 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4225
4226 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4227 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4228 newSelect ? newSelect->state : 0);
4229
4230 /* reset and redraw focusedItem if focusedItem was set so we don't */
4231 /* have to worry about the previously focused item when we set a new one */
4232 if(infoPtr->focusedItem)
4233 {
4234 rcFocused = (infoPtr->focusedItem)->rect;
4235 infoPtr->focusedItem = 0;
4236 InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
4237 }
4238
4239 switch (action)
4240 {
4241 case TVGN_CARET:
4242 prevSelect = infoPtr->selectedItem;
4243
4244 if (prevSelect == newSelect) {
4245 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4246 break;
4247 }
4248
4249 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4250 TVN_SELCHANGINGW,
4251 cause,
4252 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4253 prevSelect,
4254 newSelect))
4255 return FALSE;
4256
4257 if (prevSelect)
4258 prevSelect->state &= ~TVIS_SELECTED;
4259 if (newSelect)
4260 newSelect->state |= TVIS_SELECTED;
4261
4262 infoPtr->selectedItem = newSelect;
4263
4264 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4265
4266 if (prevSelect)
4267 TREEVIEW_Invalidate(infoPtr, prevSelect);
4268 if (newSelect)
4269 TREEVIEW_Invalidate(infoPtr, newSelect);
4270
4271 TREEVIEW_SendTreeviewNotify(infoPtr,
4272 TVN_SELCHANGEDW,
4273 cause,
4274 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4275 prevSelect,
4276 newSelect);
4277 break;
4278
4279 case TVGN_DROPHILITE:
4280 prevSelect = infoPtr->dropItem;
4281
4282 if (prevSelect)
4283 prevSelect->state &= ~TVIS_DROPHILITED;
4284
4285 infoPtr->dropItem = newSelect;
4286
4287 if (newSelect)
4288 newSelect->state |= TVIS_DROPHILITED;
4289
4290 TREEVIEW_Invalidate(infoPtr, prevSelect);
4291 TREEVIEW_Invalidate(infoPtr, newSelect);
4292 break;
4293
4294 case TVGN_FIRSTVISIBLE:
4295 if (newSelect != NULL)
4296 {
4297 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4298 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4299 TREEVIEW_Invalidate(infoPtr, NULL);
4300 }
4301 break;
4302 }
4303
4304 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4305 return TRUE;
4306 }
4307
4308 /* FIXME: handle NM_KILLFOCUS etc */
4309 static LRESULT
4310 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4311 {
4312 if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
4313 return FALSE;
4314
4315 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4316
4317 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4318 return FALSE;
4319
4320 return TRUE;
4321 }
4322
4323 /*************************************************************************
4324 * TREEVIEW_ProcessLetterKeys
4325 *
4326 * Processes keyboard messages generated by pressing the letter keys
4327 * on the keyboard.
4328 * What this does is perform a case insensitive search from the
4329 * current position with the following quirks:
4330 * - If two chars or more are pressed in quick succession we search
4331 * for the corresponding string (e.g. 'abc').
4332 * - If there is a delay we wipe away the current search string and
4333 * restart with just that char.
4334 * - If the user keeps pressing the same character, whether slowly or
4335 * fast, so that the search string is entirely composed of this
4336 * character ('aaaaa' for instance), then we search for first item
4337 * that starting with that character.
4338 * - If the user types the above character in quick succession, then
4339 * we must also search for the corresponding string ('aaaaa'), and
4340 * go to that string if there is a match.
4341 *
4342 * RETURNS
4343 *
4344 * Zero.
4345 *
4346 * BUGS
4347 *
4348 * - The current implementation has a list of characters it will
4349 * accept and it ignores averything else. In particular it will
4350 * ignore accentuated characters which seems to match what
4351 * Windows does. But I'm not sure it makes sense to follow
4352 * Windows there.
4353 * - We don't sound a beep when the search fails.
4354 * - The search should start from the focused item, not from the selected
4355 * item. One reason for this is to allow for multiple selections in trees.
4356 * But currently infoPtr->focusedItem does not seem very usable.
4357 *
4358 * SEE ALSO
4359 *
4360 * TREEVIEW_ProcessLetterKeys
4361 */
4362 static INT TREEVIEW_ProcessLetterKeys(
4363 HWND hwnd, /* handle to the window */
4364 WPARAM charCode, /* the character code, the actual character */
4365 LPARAM keyData /* key data */
4366 )
4367 {
4368 TREEVIEW_INFO *infoPtr;
4369 HTREEITEM nItem;
4370 HTREEITEM endidx,idx;
4371 TVITEMEXW item;
4372 WCHAR buffer[MAX_PATH];
4373 DWORD timestamp,elapsed;
4374
4375 /* simple parameter checking */
4376 if (!hwnd || !charCode || !keyData)
4377 return 0;
4378
4379 infoPtr=(TREEVIEW_INFO*)GetWindowLongPtrW(hwnd, 0);
4380 if (!infoPtr)
4381 return 0;
4382
4383 /* only allow the valid WM_CHARs through */
4384 if (!isalnum(charCode) &&
4385 charCode != '.' && charCode != '`' && charCode != '!' &&
4386 charCode != '@' && charCode != '#' && charCode != '$' &&
4387 charCode != '%' && charCode != '^' && charCode != '&' &&
4388 charCode != '*' && charCode != '(' && charCode != ')' &&
4389 charCode != '-' && charCode != '_' && charCode != '+' &&
4390 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4391 charCode != '}' && charCode != '[' && charCode != '{' &&
4392 charCode != '/' && charCode != '?' && charCode != '>' &&
4393 charCode != '<' && charCode != ',' && charCode != '~')
4394 return 0;
4395
4396 /* compute how much time elapsed since last keypress */
4397 timestamp = GetTickCount();
4398 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4399 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4400 } else {
4401 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4402 }
4403
4404 /* update the search parameters */
4405 infoPtr->lastKeyPressTimestamp=timestamp;
4406 if (elapsed < KEY_DELAY) {
4407 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4408 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4409 }
4410 if (infoPtr->charCode != charCode) {
4411 infoPtr->charCode=charCode=0;
4412 }
4413 } else {
4414 infoPtr->charCode=charCode;
4415 infoPtr->szSearchParam[0]=charCode;
4416 infoPtr->nSearchParamLength=1;
4417 /* Redundant with the 1 char string */
4418 charCode=0;
4419 }
4420
4421 /* and search from the current position */
4422 nItem=NULL;
4423 if (infoPtr->selectedItem != NULL) {
4424 endidx=infoPtr->selectedItem;
4425 /* if looking for single character match,
4426 * then we must always move forward
4427 */
4428 if (infoPtr->nSearchParamLength == 1)
4429 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4430 else
4431 idx=endidx;
4432 } else {
4433 endidx=NULL;
4434 idx=infoPtr->root->firstChild;
4435 }
4436 do {
4437 /* At the end point, sort out wrapping */
4438 if (idx == NULL) {
4439
4440 /* If endidx is null, stop at the last item (ie top to bottom) */
4441 if (endidx == NULL)
4442 break;
4443
4444 /* Otherwise, start again at the very beginning */
4445 idx=infoPtr->root->firstChild;
4446
4447 /* But if we are stopping on the first child, end now! */
4448 if (idx == endidx) break;
4449 }
4450
4451 /* get item */
4452 ZeroMemory(&item, sizeof(item));
4453 item.mask = TVIF_TEXT;
4454 item.hItem = idx;
4455 item.pszText = buffer;
4456 item.cchTextMax = sizeof(buffer);
4457 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4458
4459 /* check for a match */
4460 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4461 nItem=idx;
4462 break;
4463 } else if ( (charCode != 0) && (nItem == NULL) &&
4464 (nItem != infoPtr->selectedItem) &&
4465 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4466 /* This would work but we must keep looking for a longer match */
4467 nItem=idx;
4468 }
4469 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4470 } while (idx != endidx);
4471
4472 if (nItem != NULL) {
4473 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4474 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4475 }
4476 }
4477
4478 return 0;
4479 }
4480
4481 /* Scrolling ************************************************************/
4482
4483 static LRESULT
4484 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4485 {
4486 int viscount;
4487 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4488 HTREEITEM newFirstVisible = NULL;
4489 int visible_pos = -1;
4490
4491 if (!TREEVIEW_ValidItem(infoPtr, item))
4492 return FALSE;
4493
4494 if (!ISVISIBLE(item))
4495 {
4496 /* Expand parents as necessary. */
4497 HTREEITEM parent;
4498
4499 /* see if we are trying to ensure that root is vislble */
4500 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4501 parent = item->parent;
4502 else
4503 parent = item; /* this item is the topmost item */
4504
4505 while (parent != infoPtr->root)
4506 {
4507 if (!(parent->state & TVIS_EXPANDED))
4508 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4509
4510 parent = parent->parent;
4511 }
4512 }
4513
4514 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4515
4516 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4517 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4518
4519 if (hasFirstVisible)
4520 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4521
4522 if (visible_pos < 0)
4523 {
4524 /* item is before the start of the list: put it at the top. */
4525 newFirstVisible = item;
4526 }
4527 else if (visible_pos >= viscount
4528 /* Sometimes, before we are displayed, GVC is 0, causing us to
4529 * spuriously scroll up. */
4530 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4531 {
4532 /* item is past the end of the list. */
4533 int scroll = visible_pos - viscount;
4534
4535 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4536 scroll + 1);
4537 }
4538
4539 if (bHScroll)
4540 {
4541 /* Scroll window so item's text is visible as much as possible */
4542 /* Calculation of amount of extra space is taken from EditLabel code */
4543 INT pos, x;
4544 TEXTMETRICW textMetric;
4545 HDC hdc = GetWindowDC(infoPtr->hwnd);
4546
4547 x = item->textWidth;
4548
4549 GetTextMetricsW(hdc, &textMetric);
4550 ReleaseDC(infoPtr->hwnd, hdc);
4551
4552 x += (textMetric.tmMaxCharWidth * 2);
4553 x = max(x, textMetric.tmMaxCharWidth * 3);
4554
4555 if (item->textOffset < 0)
4556 pos = item->textOffset;
4557 else if (item->textOffset + x > infoPtr->clientWidth)
4558 {
4559 if (x > infoPtr->clientWidth)
4560 pos = item->textOffset;
4561 else
4562 pos = item->textOffset + x - infoPtr->clientWidth;
4563 }
4564 else
4565 pos = 0;
4566
4567 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4568 }
4569
4570 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4571 {
4572 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4573
4574 return TRUE;
4575 }
4576
4577 return FALSE;
4578 }
4579
4580 static VOID
4581 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4582 TREEVIEW_ITEM *newFirstVisible,
4583 BOOL bUpdateScrollPos)
4584 {
4585 int gap_size;
4586
4587 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4588
4589 if (newFirstVisible != NULL)
4590 {
4591 /* Prevent an empty gap from appearing at the bottom... */
4592 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4593 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4594
4595 if (gap_size > 0)
4596 {
4597 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4598 -gap_size);
4599
4600 /* ... unless we just don't have enough items. */
4601 if (newFirstVisible == NULL)
4602 newFirstVisible = infoPtr->root->firstChild;
4603 }
4604 }
4605
4606 if (infoPtr->firstVisible != newFirstVisible)
4607 {
4608 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4609 {
4610 infoPtr->firstVisible = newFirstVisible;
4611 TREEVIEW_Invalidate(infoPtr, NULL);
4612 }
4613 else
4614 {
4615 TREEVIEW_ITEM *item;
4616 int scroll = infoPtr->uItemHeight *
4617 (infoPtr->firstVisible->visibleOrder
4618 - newFirstVisible->visibleOrder);
4619
4620 infoPtr->firstVisible = newFirstVisible;
4621
4622 for (item = infoPtr->root->firstChild; item != NULL;
4623 item = TREEVIEW_GetNextListItem(infoPtr, item))
4624 {
4625 item->rect.top += scroll;
4626 item->rect.bottom += scroll;
4627 }
4628
4629 if (bUpdateScrollPos)
4630 SetScrollPos(infoPtr->hwnd, SB_VERT,
4631 newFirstVisible->visibleOrder, TRUE);
4632
4633 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4634 }
4635 }
4636 }
4637
4638 /************************************************************************
4639 * VScroll is always in units of visible items. i.e. we always have a
4640 * visible item aligned to the top of the control. (Unless we have no
4641 * items at all.)
4642 */
4643 static LRESULT
4644 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4645 {
4646 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4647 TREEVIEW_ITEM *newFirstVisible = NULL;
4648
4649 int nScrollCode = LOWORD(wParam);
4650
4651 TRACE("wp %x\n", wParam);
4652
4653 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4654 return 0;
4655
4656 if (infoPtr->hwndEdit)
4657 SetFocus(infoPtr->hwnd);
4658
4659 if (!oldFirstVisible)
4660 {
4661 assert(infoPtr->root->firstChild == NULL);
4662 return 0;
4663 }
4664
4665 switch (nScrollCode)
4666 {
4667 case SB_TOP:
4668 newFirstVisible = infoPtr->root->firstChild;
4669 break;
4670
4671 case SB_BOTTOM:
4672 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4673 break;
4674
4675 case SB_LINEUP:
4676 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4677 break;
4678
4679 case SB_LINEDOWN:
4680 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4681 break;
4682
4683 case SB_PAGEUP:
4684 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4685 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4686 break;
4687
4688 case SB_PAGEDOWN:
4689 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4690 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4691 break;
4692
4693 case SB_THUMBTRACK:
4694 case SB_THUMBPOSITION:
4695 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4696 infoPtr->root->firstChild,
4697 (LONG)(SHORT)HIWORD(wParam));
4698 break;
4699
4700 case SB_ENDSCROLL:
4701 return 0;
4702 }
4703
4704 if (newFirstVisible != NULL)
4705 {
4706 if (newFirstVisible != oldFirstVisible)
4707 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4708 nScrollCode != SB_THUMBTRACK);
4709 else if (nScrollCode == SB_THUMBPOSITION)
4710 SetScrollPos(infoPtr->hwnd, SB_VERT,
4711 newFirstVisible->visibleOrder, TRUE);
4712 }
4713
4714 return 0;
4715 }
4716
4717 static LRESULT
4718 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4719 {
4720 int maxWidth;
4721 int scrollX = infoPtr->scrollX;
4722 int nScrollCode = LOWORD(wParam);
4723
4724 TRACE("wp %x\n", wParam);
4725
4726 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4727 return FALSE;
4728
4729 if (infoPtr->hwndEdit)
4730 SetFocus(infoPtr->hwnd);
4731
4732 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4733 /* shall never occur */
4734 if (maxWidth <= 0)
4735 {
4736 scrollX = 0;
4737 goto scroll;
4738 }
4739
4740 switch (nScrollCode)
4741 {
4742 case SB_LINELEFT:
4743 scrollX -= infoPtr->uItemHeight;
4744 break;
4745 case SB_LINERIGHT:
4746 scrollX += infoPtr->uItemHeight;
4747 break;
4748 case SB_PAGELEFT:
4749 scrollX -= infoPtr->clientWidth;
4750 break;
4751 case SB_PAGERIGHT:
4752 scrollX += infoPtr->clientWidth;
4753 break;
4754
4755 case SB_THUMBTRACK:
4756 case SB_THUMBPOSITION:
4757 scrollX = (int)(SHORT)HIWORD(wParam);
4758 break;
4759
4760 case SB_ENDSCROLL:
4761 return 0;
4762 }
4763
4764 if (scrollX > maxWidth)
4765 scrollX = maxWidth;
4766 else if (scrollX < 0)
4767 scrollX = 0;
4768
4769 scroll:
4770 if (scrollX != infoPtr->scrollX)
4771 {
4772 TREEVIEW_ITEM *item;
4773 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4774
4775 for (item = infoPtr->root->firstChild; item != NULL;
4776 item = TREEVIEW_GetNextListItem(infoPtr, item))
4777 {
4778 item->linesOffset += scroll_pixels;
4779 item->stateOffset += scroll_pixels;
4780 item->imageOffset += scroll_pixels;
4781 item->textOffset += scroll_pixels;
4782 }
4783
4784 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4785 infoPtr->scrollX = scrollX;
4786 UpdateWindow(infoPtr->hwnd);
4787 }
4788
4789 if (nScrollCode != SB_THUMBTRACK)
4790 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4791
4792 return 0;
4793 }
4794
4795 static LRESULT
4796 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4797 {
4798 short gcWheelDelta;
4799 UINT pulScrollLines = 3;
4800
4801 if (infoPtr->firstVisible == NULL)
4802 return TRUE;
4803
4804 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4805
4806 gcWheelDelta = -(short)HIWORD(wParam);
4807 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4808
4809 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4810 {
4811 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4812 int maxDy = infoPtr->maxVisibleOrder;
4813
4814 if (newDy > maxDy)
4815 newDy = maxDy;
4816
4817 if (newDy < 0)
4818 newDy = 0;
4819
4820 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4821 }
4822 return TRUE;
4823 }
4824
4825 /* Create/Destroy *******************************************************/
4826
4827 static LRESULT
4828 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4829 {
4830 RECT rcClient;
4831 TREEVIEW_INFO *infoPtr;
4832 LOGFONTW lf;
4833
4834 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4835
4836 infoPtr = (TREEVIEW_INFO *)Alloc(sizeof(TREEVIEW_INFO));
4837
4838 if (infoPtr == NULL)
4839 {
4840 ERR("could not allocate info memory!\n");
4841 return 0;
4842 }
4843
4844 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
4845
4846 infoPtr->hwnd = hwnd;
4847 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
4848 infoPtr->Timer = 0;
4849 infoPtr->uNumItems = 0;
4850 infoPtr->cdmode = 0;
4851 infoPtr->uScrollTime = 300; /* milliseconds */
4852 infoPtr->bRedraw = TRUE;
4853
4854 GetClientRect(hwnd, &rcClient);
4855
4856 /* No scroll bars yet. */
4857 infoPtr->clientWidth = rcClient.right;
4858 infoPtr->clientHeight = rcClient.bottom;
4859 infoPtr->uInternalStatus = 0;
4860
4861 infoPtr->treeWidth = 0;
4862 infoPtr->treeHeight = 0;
4863
4864 infoPtr->uIndent = MINIMUM_INDENT;
4865 infoPtr->selectedItem = 0;
4866 infoPtr->focusedItem = 0;
4867 infoPtr->hotItem = 0;
4868 infoPtr->firstVisible = 0;
4869 infoPtr->maxVisibleOrder = 0;
4870 infoPtr->dropItem = 0;
4871 infoPtr->insertMarkItem = 0;
4872 infoPtr->insertBeforeorAfter = 0;
4873 /* dragList */
4874
4875 infoPtr->scrollX = 0;
4876
4877 infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
4878 infoPtr->clrText = -1; /* use system color */
4879 infoPtr->clrLine = RGB(128, 128, 128);
4880 infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
4881
4882 /* hwndToolTip */
4883
4884 infoPtr->hwndEdit = 0;
4885 infoPtr->wpEditOrig = NULL;
4886 infoPtr->bIgnoreEditKillFocus = FALSE;
4887 infoPtr->bLabelChanged = FALSE;
4888
4889 infoPtr->himlNormal = NULL;
4890 infoPtr->himlState = NULL;
4891 infoPtr->normalImageWidth = 0;
4892 infoPtr->normalImageHeight = 0;
4893 infoPtr->stateImageWidth = 0;
4894 infoPtr->stateImageHeight = 0;
4895
4896 infoPtr->items = DPA_Create(16);
4897
4898 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
4899 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
4900 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
4901 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
4902 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
4903
4904 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
4905
4906 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
4907 infoPtr->root->state = TVIS_EXPANDED;
4908 infoPtr->root->iLevel = -1;
4909 infoPtr->root->visibleOrder = -1;
4910
4911 infoPtr->hwndNotify = lpcs->hwndParent;
4912 #if 0
4913 infoPtr->bTransparent = ( GetWindowLongW( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
4914 #endif
4915
4916 infoPtr->hwndToolTip = 0;
4917
4918 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
4919
4920 /* Determine what type of notify should be issued */
4921 /* sets infoPtr->bNtfUnicode */
4922 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
4923
4924 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
4925 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
4926
4927 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4928 {
4929 RECT rc;
4930 HBITMAP hbm, hbmOld;
4931 HDC hdc,hdcScreen;
4932 int nIndex;
4933
4934 infoPtr->himlState =
4935 ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4936
4937 hdcScreen = GetDC(0);
4938
4939 /* Create a coloured bitmap compatible with the screen depth
4940 because checkboxes are not black&white */
4941 hdc = CreateCompatibleDC(hdcScreen);
4942 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4943 hbmOld = SelectObject(hdc, hbm);
4944
4945 rc.left = 0; rc.top = 0;
4946 rc.right = 48; rc.bottom = 16;
4947 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4948
4949 rc.left = 18; rc.top = 2;
4950 rc.right = 30; rc.bottom = 14;
4951 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4952 DFCS_BUTTONCHECK|DFCS_FLAT);
4953
4954 rc.left = 34; rc.right = 46;
4955 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4956 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4957
4958 SelectObject(hdc, hbmOld);
4959 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4960 GetSysColor(COLOR_WINDOW));
4961 TRACE("checkbox index %d\n", nIndex);
4962
4963 DeleteObject(hbm);
4964 DeleteDC(hdc);
4965 ReleaseDC(0, hdcScreen);
4966
4967 infoPtr->stateImageWidth = 16;
4968 infoPtr->stateImageHeight = 16;
4969 }
4970
4971 /* Make sure actual scrollbar state is consistent with uInternalStatus */
4972 ShowScrollBar(hwnd, SB_VERT, FALSE);
4973 ShowScrollBar(hwnd, SB_HORZ, FALSE);
4974
4975 OpenThemeData (hwnd, themeClass);
4976
4977 return 0;
4978 }
4979
4980
4981 static LRESULT
4982 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
4983 {
4984 TRACE("\n");
4985
4986 TREEVIEW_RemoveTree(infoPtr);
4987
4988 /* tool tip is automatically destroyed: we are its owner */
4989
4990 /* Restore original wndproc */
4991 if (infoPtr->hwndEdit)
4992 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
4993 (DWORD_PTR)infoPtr->wpEditOrig);
4994
4995 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
4996
4997 /* Deassociate treeview from the window before doing anything drastic. */
4998 SetWindowLongPtrW(infoPtr->hwnd, 0, (DWORD_PTR)NULL);
4999
5000
5001 DeleteObject(infoPtr->hDefaultFont);
5002 DeleteObject(infoPtr->hBoldFont);
5003 DeleteObject(infoPtr->hUnderlineFont);
5004 Free(infoPtr);
5005
5006 return 0;
5007 }
5008
5009 /* Miscellaneous Messages ***********************************************/
5010
5011 static LRESULT
5012 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5013 {
5014 static const struct
5015 {
5016 unsigned char code;
5017 }
5018 scroll[] =
5019 {
5020 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5021 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5022 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5023 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5024 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5025 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5026 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5027 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5028 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5029 #undef SCROLL_ENTRY
5030 };
5031
5032 if (key >= VK_PRIOR && key <= VK_DOWN)
5033 {
5034 unsigned char code = scroll[key - VK_PRIOR].code;
5035
5036 (((code & (1 << 7)) == (SB_HORZ << 7))
5037 ? TREEVIEW_HScroll
5038 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5039 }
5040
5041 return 0;
5042 }
5043
5044 /************************************************************************
5045 * TREEVIEW_KeyDown
5046 *
5047 * VK_UP Move selection to the previous non-hidden item.
5048 * VK_DOWN Move selection to the next non-hidden item.
5049 * VK_HOME Move selection to the first item.
5050 * VK_END Move selection to the last item.
5051 * VK_LEFT If expanded then collapse, otherwise move to parent.
5052 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5053 * VK_ADD Expand.
5054 * VK_SUBTRACT Collapse.
5055 * VK_MULTIPLY Expand all.
5056 * VK_PRIOR Move up GetVisibleCount items.
5057 * VK_NEXT Move down GetVisibleCount items.
5058 * VK_BACK Move to parent.
5059 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5060 */
5061 static LRESULT
5062 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5063 {
5064 /* If it is non-NULL and different, it will be selected and visible. */
5065 TREEVIEW_ITEM *newSelection = NULL;
5066
5067 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5068
5069 TRACE("%x\n", wParam);
5070
5071 if (prevItem == NULL)
5072 return FALSE;
5073
5074 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5075 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5076
5077 switch (wParam)
5078 {
5079 case VK_UP:
5080 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5081 if (!newSelection)
5082 newSelection = infoPtr->root->firstChild;
5083 break;
5084
5085 case VK_DOWN:
5086 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5087 break;
5088
5089 case VK_HOME:
5090 newSelection = infoPtr->root->firstChild;
5091 break;
5092
5093 case VK_END:
5094 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5095 break;
5096
5097 case VK_LEFT:
5098 if (prevItem->state & TVIS_EXPANDED)
5099 {
5100 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5101 }
5102 else if (prevItem->parent != infoPtr->root)
5103 {
5104 newSelection = prevItem->parent;
5105 }
5106 break;
5107
5108 case VK_RIGHT:
5109 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5110 {
5111 if (!(prevItem->state & TVIS_EXPANDED))
5112 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5113 else
5114 {
5115 newSelection = prevItem->firstChild;
5116 }
5117 }
5118
5119 break;
5120
5121 case VK_MULTIPLY:
5122 TREEVIEW_ExpandAll(infoPtr, prevItem);
5123 break;
5124
5125 case VK_ADD:
5126 if (!(prevItem->state & TVIS_EXPANDED))
5127 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5128 break;
5129
5130 case VK_SUBTRACT:
5131 if (prevItem->state & TVIS_EXPANDED)
5132 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5133 break;
5134
5135 case VK_PRIOR:
5136 newSelection
5137 = TREEVIEW_GetListItem(infoPtr, prevItem,
5138 -TREEVIEW_GetVisibleCount(infoPtr));
5139 break;
5140
5141 case VK_NEXT:
5142 newSelection
5143 = TREEVIEW_GetListItem(infoPtr, prevItem,
5144 TREEVIEW_GetVisibleCount(infoPtr));
5145 break;
5146
5147 case VK_BACK:
5148 newSelection = prevItem->parent;
5149 if (newSelection == infoPtr->root)
5150 newSelection = NULL;
5151 break;
5152
5153 case VK_SPACE:
5154 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5155 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5156 break;
5157 }
5158
5159 if (newSelection && newSelection != prevItem)
5160 {
5161 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5162 TVC_BYKEYBOARD))
5163 {
5164 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5165 }
5166 }
5167
5168 return FALSE;
5169 }
5170
5171 static LRESULT
5172 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5173 {
5174 if (infoPtr->hotItem)
5175 {
5176 /* remove hot effect from item */
5177 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5178 infoPtr->hotItem = NULL;
5179 }
5180 return 0;
5181 }
5182
5183 static LRESULT
5184 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, WPARAM wParam, LPARAM lParam)
5185 {
5186 POINT pt;
5187 TRACKMOUSEEVENT trackinfo;
5188 TREEVIEW_ITEM * item;
5189
5190 /* fill in the TRACKMOUSEEVENT struct */
5191 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5192 trackinfo.dwFlags = TME_QUERY;
5193 trackinfo.hwndTrack = infoPtr->hwnd;
5194 trackinfo.dwHoverTime = HOVER_DEFAULT;
5195
5196 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5197 _TrackMouseEvent(&trackinfo);
5198
5199 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5200 if(!(trackinfo.dwFlags & TME_LEAVE))
5201 {
5202 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5203
5204 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5205 /* and can properly deactivate the hot item */
5206 _TrackMouseEvent(&trackinfo);
5207 }
5208
5209 pt.x = (short)LOWORD(lParam);
5210 pt.y = (short)HIWORD(lParam);
5211
5212 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5213
5214 if (item != infoPtr->hotItem)
5215 {
5216 /* redraw old hot item */
5217 if (infoPtr->hotItem)
5218 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5219 infoPtr->hotItem = item;
5220 /* redraw new hot item */
5221 if (infoPtr->hotItem)
5222 InvalidateRect(infoPtr->hwnd, &infoPtr->hotItem->rect, TRUE);
5223 }
5224
5225 return 0;
5226 }
5227
5228 /* Draw themed border */
5229 static BOOL nc_paint (TREEVIEW_INFO *infoPtr, HRGN region)
5230 {
5231 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5232 HDC dc;
5233 RECT r;
5234 HRGN cliprgn;
5235 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5236 cyEdge = GetSystemMetrics (SM_CYEDGE);
5237
5238 if (!theme) return FALSE;
5239
5240 GetWindowRect(infoPtr->hwnd, &r);
5241
5242 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5243 r.right - cxEdge, r.bottom - cyEdge);
5244 if (region != (HRGN)1)
5245 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5246 OffsetRect(&r, -r.left, -r.top);
5247
5248 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5249 OffsetRect(&r, -r.left, -r.top);
5250
5251 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5252 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5253 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5254 ReleaseDC(infoPtr->hwnd, dc);
5255
5256 /* Call default proc to get the scrollbars etc. painted */
5257 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5258
5259 return TRUE;
5260 }
5261
5262 static LRESULT
5263 TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5264 {
5265 LPNMHDR lpnmh = (LPNMHDR)lParam;
5266
5267 if (lpnmh->code == PGN_CALCSIZE) {
5268 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5269
5270 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5271 lppgc->iWidth = infoPtr->treeWidth;
5272 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5273 infoPtr->treeWidth, infoPtr->clientWidth);
5274 }
5275 else {
5276 lppgc->iHeight = infoPtr->treeHeight;
5277 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5278 infoPtr->treeHeight, infoPtr->clientHeight);
5279 }
5280 return 0;
5281 }
5282 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5283 }
5284
5285 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
5286 {
5287 INT format;
5288
5289 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
5290
5291 if (nCommand != NF_REQUERY) return 0;
5292
5293 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
5294 TRACE("format=%d\n", format);
5295
5296 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
5297
5298 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
5299
5300 return format;
5301 }
5302
5303 static LRESULT
5304 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5305 {
5306 if (wParam == SIZE_RESTORED)
5307 {
5308 infoPtr->clientWidth = (short)LOWORD(lParam);
5309 infoPtr->clientHeight = (short)HIWORD(lParam);
5310
5311 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5312 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5313 TREEVIEW_UpdateScrollBars(infoPtr);
5314 }
5315 else
5316 {
5317 FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
5318 }
5319
5320 TREEVIEW_Invalidate(infoPtr, NULL);
5321 return 0;
5322 }
5323
5324 static LRESULT
5325 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5326 {
5327 TRACE("(%x %lx)\n", wParam, lParam);
5328
5329 if (wParam == GWL_STYLE)
5330 {
5331 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5332
5333 /* we have to take special care about tooltips */
5334 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5335 {
5336 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5337 {
5338 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5339 TRACE("\n");
5340 }
5341 else
5342 {
5343 DestroyWindow(infoPtr->hwndToolTip);
5344 infoPtr->hwndToolTip = 0;
5345 }
5346 }
5347
5348 infoPtr->dwStyle = dwNewStyle;
5349 }
5350
5351 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5352 TREEVIEW_UpdateScrollBars(infoPtr);
5353 TREEVIEW_Invalidate(infoPtr, NULL);
5354
5355 return 0;
5356 }
5357
5358 static LRESULT
5359 TREEVIEW_SetCursor(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5360 {
5361 POINT pt;
5362 TREEVIEW_ITEM * item;
5363
5364 GetCursorPos(&pt);
5365 ScreenToClient(infoPtr->hwnd, &pt);
5366
5367 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5368
5369 /* FIXME: send NM_SETCURSOR */
5370
5371 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5372 {
5373 SetCursor(infoPtr->hcurHand);
5374 return 0;
5375 }
5376 else
5377 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5378 }
5379
5380 static LRESULT
5381 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5382 {
5383 TRACE("\n");
5384
5385 if (!infoPtr->selectedItem)
5386 {
5387 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5388 TVC_UNKNOWN);
5389 }
5390
5391 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5392 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5393 return 0;
5394 }
5395
5396 static LRESULT
5397 TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
5398 {
5399 TRACE("\n");
5400
5401 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5402 UpdateWindow(infoPtr->hwnd);
5403 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5404 return 0;
5405 }
5406
5407 /* update theme after a WM_THEMECHANGED message */
5408 static LRESULT theme_changed (TREEVIEW_INFO* infoPtr)
5409 {
5410 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5411 CloseThemeData (theme);
5412 OpenThemeData (infoPtr->hwnd, themeClass);
5413 return 0;
5414 }
5415
5416
5417 static LRESULT WINAPI
5418 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5419 {
5420 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5421
5422 TRACE("hwnd %p msg %04x wp=%08x lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5423
5424 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5425 else
5426 {
5427 if (uMsg == WM_CREATE)
5428 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5429 else
5430 goto def;
5431 }
5432
5433 switch (uMsg)
5434 {
5435 case TVM_CREATEDRAGIMAGE:
5436 return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
5437
5438 case TVM_DELETEITEM:
5439 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5440
5441 case TVM_EDITLABELA:
5442 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5443
5444 case TVM_EDITLABELW:
5445 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5446
5447 case TVM_ENDEDITLABELNOW:
5448 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5449
5450 case TVM_ENSUREVISIBLE:
5451 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5452
5453 case TVM_EXPAND:
5454 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5455
5456 case TVM_GETBKCOLOR:
5457 return TREEVIEW_GetBkColor(infoPtr);
5458
5459 case TVM_GETCOUNT:
5460 return TREEVIEW_GetCount(infoPtr);
5461
5462 case TVM_GETEDITCONTROL:
5463 return TREEVIEW_GetEditControl(infoPtr);
5464
5465 case TVM_GETIMAGELIST:
5466 return TREEVIEW_GetImageList(infoPtr, wParam);
5467
5468 case TVM_GETINDENT:
5469 return TREEVIEW_GetIndent(infoPtr);
5470
5471 case TVM_GETINSERTMARKCOLOR:
5472 return TREEVIEW_GetInsertMarkColor(infoPtr);
5473
5474 case TVM_GETISEARCHSTRINGA:
5475 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5476 return 0;
5477
5478 case TVM_GETISEARCHSTRINGW:
5479 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5480 return 0;
5481
5482 case TVM_GETITEMA:
5483 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5484
5485 case TVM_GETITEMW:
5486 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5487
5488 case TVM_GETITEMHEIGHT:
5489 return TREEVIEW_GetItemHeight(infoPtr);
5490
5491 case TVM_GETITEMRECT:
5492 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5493
5494 case TVM_GETITEMSTATE:
5495 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5496
5497 case TVM_GETLINECOLOR:
5498 return TREEVIEW_GetLineColor(infoPtr);
5499
5500 case TVM_GETNEXTITEM:
5501 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5502
5503 case TVM_GETSCROLLTIME:
5504 return TREEVIEW_GetScrollTime(infoPtr);
5505
5506 case TVM_GETTEXTCOLOR:
5507 return TREEVIEW_GetTextColor(infoPtr);
5508
5509 case TVM_GETTOOLTIPS:
5510 return TREEVIEW_GetToolTips(infoPtr);
5511
5512 case TVM_GETUNICODEFORMAT:
5513 return TREEVIEW_GetUnicodeFormat(infoPtr);
5514
5515 case TVM_GETVISIBLECOUNT:
5516 return TREEVIEW_GetVisibleCount(infoPtr);
5517
5518 case TVM_HITTEST:
5519 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5520
5521 case TVM_INSERTITEMA:
5522 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, FALSE);
5523
5524 case TVM_INSERTITEMW:
5525 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam, TRUE);
5526
5527 case TVM_SELECTITEM:
5528 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5529
5530 case TVM_SETBKCOLOR:
5531 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5532
5533 case TVM_SETIMAGELIST:
5534 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5535
5536 case TVM_SETINDENT:
5537 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5538
5539 case TVM_SETINSERTMARK:
5540 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5541
5542 case TVM_SETINSERTMARKCOLOR:
5543 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5544
5545 case TVM_SETITEMA:
5546 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, FALSE);
5547
5548 case TVM_SETITEMW:
5549 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam, TRUE);
5550
5551 case TVM_SETLINECOLOR:
5552 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5553
5554 case TVM_SETITEMHEIGHT:
5555 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5556
5557 case TVM_SETSCROLLTIME:
5558 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5559
5560 case TVM_SETTEXTCOLOR:
5561 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5562
5563 case TVM_SETTOOLTIPS:
5564 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5565
5566 case TVM_SETUNICODEFORMAT:
5567 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5568
5569 case TVM_SORTCHILDREN:
5570 return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
5571
5572 case TVM_SORTCHILDRENCB:
5573 return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
5574
5575 case WM_CHAR:
5576 return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
5577
5578 case WM_COMMAND:
5579 return TREEVIEW_Command(infoPtr, wParam, lParam);
5580
5581 case WM_DESTROY:
5582 return TREEVIEW_Destroy(infoPtr);
5583
5584 /* WM_ENABLE */
5585
5586 case WM_ERASEBKGND:
5587 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5588
5589 case WM_GETDLGCODE:
5590 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5591
5592 case WM_GETFONT:
5593 return TREEVIEW_GetFont(infoPtr);
5594
5595 case WM_HSCROLL:
5596 return TREEVIEW_HScroll(infoPtr, wParam);
5597
5598 case WM_KEYDOWN:
5599 return TREEVIEW_KeyDown(infoPtr, wParam);
5600
5601 case WM_KILLFOCUS:
5602 return TREEVIEW_KillFocus(infoPtr);
5603
5604 case WM_LBUTTONDBLCLK:
5605 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5606
5607 case WM_LBUTTONDOWN:
5608 return TREEVIEW_LButtonDown(infoPtr, lParam);
5609
5610 /* WM_MBUTTONDOWN */
5611
5612 case WM_MOUSELEAVE:
5613 return TREEVIEW_MouseLeave(infoPtr);
5614
5615 case WM_MOUSEMOVE:
5616 if (infoPtr->dwStyle & TVS_TRACKSELECT)
5617 return TREEVIEW_MouseMove(infoPtr, wParam, lParam);
5618 else
5619 return 0;
5620
5621 case WM_NCPAINT:
5622 if (nc_paint (infoPtr, (HRGN)wParam))
5623 return 0;
5624 goto def;
5625
5626 case WM_NOTIFY:
5627 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5628
5629 case WM_NOTIFYFORMAT:
5630 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5631
5632 case WM_PRINTCLIENT:
5633 case WM_PAINT:
5634 return TREEVIEW_Paint(infoPtr, wParam);
5635
5636 case WM_RBUTTONDOWN:
5637 return TREEVIEW_RButtonDown(infoPtr, lParam);
5638
5639 case WM_SETCURSOR:
5640 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5641
5642 case WM_SETFOCUS:
5643 return TREEVIEW_SetFocus(infoPtr);
5644
5645 case WM_SETFONT:
5646 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5647
5648 case WM_SETREDRAW:
5649 return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
5650
5651 case WM_SIZE:
5652 return TREEVIEW_Size(infoPtr, wParam, lParam);
5653
5654 case WM_STYLECHANGED:
5655 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5656
5657 /* WM_SYSCOLORCHANGE */
5658
5659 /* WM_SYSKEYDOWN */
5660
5661 case WM_TIMER:
5662 return TREEVIEW_HandleTimer(infoPtr, wParam);
5663
5664 case WM_THEMECHANGED:
5665 return theme_changed (infoPtr);
5666
5667 case WM_VSCROLL:
5668 return TREEVIEW_VScroll(infoPtr, wParam);
5669
5670 /* WM_WININICHANGE */
5671
5672 case WM_MOUSEWHEEL:
5673 if (wParam & (MK_SHIFT | MK_CONTROL))
5674 goto def;
5675 return TREEVIEW_MouseWheel(infoPtr, wParam);
5676
5677 case WM_DRAWITEM:
5678 TRACE("drawItem\n");
5679 goto def;
5680
5681 default:
5682 /* This mostly catches MFC and Delphi messages. :( */
5683 if ((uMsg >= WM_USER) && (uMsg < WM_APP))
5684 TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
5685 def:
5686 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5687 }
5688 }
5689
5690
5691 /* Class Registration ***************************************************/
5692
5693 VOID
5694 TREEVIEW_Register(void)
5695 {
5696 WNDCLASSW wndClass;
5697
5698 TRACE("\n");
5699
5700 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5701 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5702 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5703 wndClass.cbClsExtra = 0;
5704 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5705
5706 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5707 wndClass.hbrBackground = 0;
5708 wndClass.lpszClassName = WC_TREEVIEWW;
5709
5710 RegisterClassW(&wndClass);
5711 }
5712
5713
5714 VOID
5715 TREEVIEW_Unregister(void)
5716 {
5717 UnregisterClassW(WC_TREEVIEWW, NULL);
5718 }
5719
5720
5721 /* Tree Verification ****************************************************/
5722
5723 #ifdef NDEBUG
5724 static inline void
5725 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
5726
5727 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5728 TREEVIEW_ITEM *item)
5729 {
5730 assert(infoPtr != NULL);
5731 assert(item != NULL);
5732
5733 /* both NULL, or both non-null */
5734 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5735
5736 assert(item->firstChild != item);
5737 assert(item->lastChild != item);
5738
5739 if (item->firstChild)
5740 {
5741 assert(item->firstChild->parent == item);
5742 assert(item->firstChild->prevSibling == NULL);
5743 }
5744
5745 if (item->lastChild)
5746 {
5747 assert(item->lastChild->parent == item);
5748 assert(item->lastChild->nextSibling == NULL);
5749 }
5750
5751 assert(item->nextSibling != item);
5752 if (item->nextSibling)
5753 {
5754 assert(item->nextSibling->parent == item->parent);
5755 assert(item->nextSibling->prevSibling == item);
5756 }
5757
5758 assert(item->prevSibling != item);
5759 if (item->prevSibling)
5760 {
5761 assert(item->prevSibling->parent == item->parent);
5762 assert(item->prevSibling->nextSibling == item);
5763 }
5764 }
5765
5766 static inline void
5767 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5768 {
5769 assert(item != NULL);
5770
5771 assert(item->parent != NULL);
5772 assert(item->parent != item);
5773 assert(item->iLevel == item->parent->iLevel + 1);
5774
5775 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5776
5777 TREEVIEW_VerifyItemCommon(infoPtr, item);
5778
5779 TREEVIEW_VerifyChildren(infoPtr, item);
5780 }
5781
5782 static inline void
5783 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5784 {
5785 TREEVIEW_ITEM *child;
5786 assert(item != NULL);
5787
5788 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5789 TREEVIEW_VerifyItem(infoPtr, child);
5790 }
5791
5792 static inline void
5793 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5794 {
5795 TREEVIEW_ITEM *root = infoPtr->root;
5796
5797 assert(root != NULL);
5798 assert(root->iLevel == -1);
5799 assert(root->parent == NULL);
5800 assert(root->prevSibling == NULL);
5801
5802 TREEVIEW_VerifyItemCommon(infoPtr, root);
5803
5804 TREEVIEW_VerifyChildren(infoPtr, root);
5805 }
5806
5807 static void
5808 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5809 {
5810 assert(infoPtr != NULL);
5811
5812 TREEVIEW_VerifyRoot(infoPtr);
5813 }
5814 #endif