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comctl32/treeview: TVM_EXPAND with TVE_TOGGLE action shouldn't always notify as it...
[wine/multimedia.git] / dlls / comctl32 / treeview.c
blobbd65fca8d5177fec8155f4c91f7e5ce1ab6a78ea
1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO, TVN_SINGLEEXPAND
33 *
34 * missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include "config.h"
44 #include "wine/port.h"
45
46 #include <assert.h>
47 #include <ctype.h>
48 #include <stdarg.h>
49 #include <string.h>
50 #include <limits.h>
51 #include <stdlib.h>
52
53 #define NONAMELESSUNION
54 #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 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
68
69 /* internal structures */
70
71 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
72 {
73 HTREEITEM parent; /* handle to parent or 0 if at root */
74 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
75 HTREEITEM firstChild; /* handle to first child or 0 if no child */
76
77 UINT callbackMask;
78 UINT state;
79 UINT stateMask;
80 LPWSTR pszText;
81 int cchTextMax;
82 int iImage;
83 int iSelectedImage;
84 int iExpandedImage;
85 int cChildren;
86 LPARAM lParam;
87 int iIntegral; /* item height multiplier (1 is normal) */
88 int iLevel; /* indentation level:0=root level */
89 HTREEITEM lastChild;
90 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
91 RECT rect;
92 LONG linesOffset;
93 LONG stateOffset;
94 LONG imageOffset;
95 LONG textOffset;
96 LONG textWidth; /* horizontal text extent for pszText */
97 LONG visibleOrder; /* visible ordering, 0 is first visible item */
98 } TREEVIEW_ITEM;
99
100
101 typedef struct tagTREEVIEW_INFO
102 {
103 HWND hwnd;
104 HWND hwndNotify; /* Owner window to send notifications to */
105 DWORD dwStyle;
106 HTREEITEM root;
107 UINT uInternalStatus;
108 INT Timer;
109 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
110 INT cdmode; /* last custom draw setting */
111 UINT uScrollTime; /* max. time for scrolling in milliseconds */
112 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
113
114 UINT uItemHeight; /* item height */
115 BOOL bHeightSet;
116
117 LONG clientWidth; /* width of control window */
118 LONG clientHeight; /* height of control window */
119
120 LONG treeWidth; /* width of visible tree items */
121 LONG treeHeight; /* height of visible tree items */
122
123 UINT uIndent; /* indentation in pixels */
124 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
125 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
126 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
127 HTREEITEM editItem; /* item being edited with builtin edit box */
128
129 HTREEITEM firstVisible; /* handle to first visible item */
130 LONG maxVisibleOrder;
131 HTREEITEM dropItem; /* handle to item selected by drag cursor */
132 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
133 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
134 HIMAGELIST dragList; /* Bitmap of dragged item */
135 LONG scrollX;
136 COLORREF clrBk;
137 COLORREF clrText;
138 COLORREF clrLine;
139 COLORREF clrInsertMark;
140 HFONT hFont;
141 HFONT hDefaultFont;
142 HFONT hBoldFont;
143 HFONT hUnderlineFont;
144 HCURSOR hcurHand;
145 HWND hwndToolTip;
146
147 HWND hwndEdit;
148 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
149 BOOL bIgnoreEditKillFocus;
150 BOOL bLabelChanged;
151
152 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
153 HIMAGELIST himlNormal;
154 int normalImageHeight;
155 int normalImageWidth;
156 HIMAGELIST himlState;
157 int stateImageHeight;
158 int stateImageWidth;
159 HDPA items;
160
161 DWORD lastKeyPressTimestamp;
162 WPARAM charCode;
163 INT nSearchParamLength;
164 WCHAR szSearchParam[ MAX_PATH ];
165 } TREEVIEW_INFO;
166
167
168 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
169 #define KEY_DELAY 450
170
171 /* bitflags for infoPtr->uInternalStatus */
172
173 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
174 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
175 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
176 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
177 #define TV_RDRAG 0x10 /* ditto Rbutton */
178 #define TV_RDRAGGING 0x20
179
180 /* bitflags for infoPtr->timer */
181
182 #define TV_EDIT_TIMER 2
183 #define TV_EDIT_TIMER_SET 2
184
185 #define TEXT_CALLBACK_SIZE 260
186
187 #define TREEVIEW_LEFT_MARGIN 8
188
189 #define MINIMUM_INDENT 19
190
191 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
192
193 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
194 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
195 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
196
197 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
198 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
199 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
200 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
201
202 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
203
204
205 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
206
207
208 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
209
210 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
211 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
212 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
213 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
214 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
215 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
216 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
217
218 /* Random Utilities *****************************************************/
219 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
220
221 /* Returns the treeview private data if hwnd is a treeview.
222 * Otherwise returns an undefined value. */
223 static inline TREEVIEW_INFO *
224 TREEVIEW_GetInfoPtr(HWND hwnd)
225 {
226 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
227 }
228
229 /* Don't call this. Nothing wants an item index. */
230 static inline int
231 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
232 {
233 return DPA_GetPtrIndex(infoPtr->items, handle);
234 }
235
236 /* Checks if item has changed and needs to be redrawn */
237 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
238 const TVITEMEXW *tvChange)
239 {
240 /* Number of children has changed */
241 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
242 return TRUE;
243
244 /* Image has changed and it's not a callback */
245 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
246 tiNew->iImage != I_IMAGECALLBACK)
247 return TRUE;
248
249 /* Selected image has changed and it's not a callback */
250 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
251 tiNew->iSelectedImage != I_IMAGECALLBACK)
252 return TRUE;
253
254 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
255 tiNew->iExpandedImage != I_IMAGECALLBACK)
256 return TRUE;
257
258 /* Text has changed and it's not a callback */
259 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
260 tiNew->pszText != LPSTR_TEXTCALLBACKW)
261 return TRUE;
262
263 /* Indent has changed */
264 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
265 return TRUE;
266
267 /* Item state has changed */
268 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
269 return TRUE;
270
271 return FALSE;
272 }
273
274 /***************************************************************************
275 * This method checks that handle is an item for this tree.
276 */
277 static BOOL
278 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
279 {
280 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
281 {
282 TRACE("invalid item %p\n", handle);
283 return FALSE;
284 }
285 else
286 return TRUE;
287 }
288
289 static HFONT
290 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
291 {
292 LOGFONTW font;
293
294 GetObjectW(hOrigFont, sizeof(font), &font);
295 font.lfWeight = FW_BOLD;
296 return CreateFontIndirectW(&font);
297 }
298
299 static HFONT
300 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
301 {
302 LOGFONTW font;
303
304 GetObjectW(hOrigFont, sizeof(font), &font);
305 font.lfUnderline = TRUE;
306 return CreateFontIndirectW(&font);
307 }
308
309 static inline HFONT
310 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
311 {
312 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
313 return infoPtr->hUnderlineFont;
314 if (item->state & TVIS_BOLD)
315 return infoPtr->hBoldFont;
316 return infoPtr->hFont;
317 }
318
319 /* for trace/debugging purposes only */
320 static const char *
321 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
322 {
323 if (item == NULL) return "<null item>";
324 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
325 if (item->pszText == NULL) return "<null>";
326 return debugstr_w(item->pszText);
327 }
328
329 /* An item is not a child of itself. */
330 static BOOL
331 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
332 {
333 do
334 {
335 child = child->parent;
336 if (child == parent) return TRUE;
337 } while (child != NULL);
338
339 return FALSE;
340 }
341
342
343 /* Tree Traversal *******************************************************/
344
345 /***************************************************************************
346 * This method returns the last expanded sibling or child child item
347 * of a tree node
348 */
349 static TREEVIEW_ITEM *
350 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
351 {
352 if (!item) return NULL;
353
354 while (item->lastChild)
355 {
356 if (item->state & TVIS_EXPANDED)
357 item = item->lastChild;
358 else
359 break;
360 }
361
362 if (item == infoPtr->root)
363 return NULL;
364
365 return item;
366 }
367
368 /***************************************************************************
369 * This method returns the previous non-hidden item in the list not
370 * considering the tree hierarchy.
371 */
372 static TREEVIEW_ITEM *
373 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
374 {
375 if (tvItem->prevSibling)
376 {
377 /* This item has a prevSibling, get the last item in the sibling's tree. */
378 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
379
380 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
381 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
382 else
383 return upItem;
384 }
385 else
386 {
387 /* this item does not have a prevSibling, get the parent */
388 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
389 }
390 }
391
392
393 /***************************************************************************
394 * This method returns the next physical item in the treeview not
395 * considering the tree hierarchy.
396 */
397 static TREEVIEW_ITEM *
398 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
399 {
400 /*
401 * If this item has children and is expanded, return the first child
402 */
403 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
404 {
405 return tvItem->firstChild;
406 }
407
408
409 /*
410 * try to get the sibling
411 */
412 if (tvItem->nextSibling)
413 return tvItem->nextSibling;
414
415 /*
416 * Otherwise, get the parent's sibling.
417 */
418 while (tvItem->parent)
419 {
420 tvItem = tvItem->parent;
421
422 if (tvItem->nextSibling)
423 return tvItem->nextSibling;
424 }
425
426 return NULL;
427 }
428
429 /***************************************************************************
430 * This method returns the nth item starting at the given item. It returns
431 * the last item (or first) we we run out of items.
432 *
433 * Will scroll backward if count is <0.
434 * forward if count is >0.
435 */
436 static TREEVIEW_ITEM *
437 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
438 LONG count)
439 {
440 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
441 TREEVIEW_ITEM *previousItem;
442
443 assert(item != NULL);
444
445 if (count > 0)
446 {
447 next_item = TREEVIEW_GetNextListItem;
448 }
449 else if (count < 0)
450 {
451 count = -count;
452 next_item = TREEVIEW_GetPrevListItem;
453 }
454 else
455 return item;
456
457 do
458 {
459 previousItem = item;
460 item = next_item(infoPtr, item);
461
462 } while (--count && item != NULL);
463
464
465 return item ? item : previousItem;
466 }
467
468 /* Notifications ************************************************************/
469
470 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
471 {
472 if (!infoPtr->bNtfUnicode) {
473 switch (code) {
474 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
475 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
476 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
477 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
478 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
479 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
480 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
481 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
482 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
483 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
484 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
485 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
486 }
487 }
488 return code;
489 }
490
491 static inline BOOL
492 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPNMHDR pnmh)
493 {
494 TRACE("wParam=%ld, lParam=%p\n", wParam, pnmh);
495 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, (LPARAM)pnmh);
496 }
497
498 static BOOL
499 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
500 {
501 NMHDR nmhdr;
502 HWND hwnd = infoPtr->hwnd;
503
504 TRACE("%d\n", code);
505 nmhdr.hwndFrom = hwnd;
506 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
507 nmhdr.code = get_notifycode(infoPtr, code);
508
509 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, &nmhdr);
510 }
511
512 static VOID
513 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
514 {
515 tvItem->mask = mask;
516 tvItem->hItem = item;
517 tvItem->state = item->state;
518 tvItem->stateMask = 0;
519 tvItem->iImage = item->iImage;
520 tvItem->iSelectedImage = item->iSelectedImage;
521 tvItem->cChildren = item->cChildren;
522 tvItem->lParam = item->lParam;
523
524 if(mask & TVIF_TEXT)
525 {
526 if (!infoPtr->bNtfUnicode)
527 {
528 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
529 tvItem->pszText = Alloc (tvItem->cchTextMax);
530 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
531 }
532 else
533 {
534 tvItem->cchTextMax = item->cchTextMax;
535 tvItem->pszText = item->pszText;
536 }
537 }
538 else
539 {
540 tvItem->cchTextMax = 0;
541 tvItem->pszText = NULL;
542 }
543 }
544
545 static BOOL
546 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
547 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
548 {
549 HWND hwnd = infoPtr->hwnd;
550 NMTREEVIEWW nmhdr;
551 BOOL ret;
552
553 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
554 code, action, oldItem, newItem);
555
556 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
557
558 nmhdr.hdr.hwndFrom = hwnd;
559 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
560 nmhdr.hdr.code = get_notifycode(infoPtr, code);
561 nmhdr.action = action;
562
563 if (oldItem)
564 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
565
566 if (newItem)
567 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
568
569 nmhdr.ptDrag.x = 0;
570 nmhdr.ptDrag.y = 0;
571
572 ret = TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
573 if (!infoPtr->bNtfUnicode)
574 {
575 Free(nmhdr.itemOld.pszText);
576 Free(nmhdr.itemNew.pszText);
577 }
578 return ret;
579 }
580
581 static BOOL
582 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
583 HTREEITEM dragItem, POINT pt)
584 {
585 HWND hwnd = infoPtr->hwnd;
586 NMTREEVIEWW nmhdr;
587
588 TRACE("code:%d dragitem:%p\n", code, dragItem);
589
590 nmhdr.hdr.hwndFrom = hwnd;
591 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
592 nmhdr.hdr.code = get_notifycode(infoPtr, code);
593 nmhdr.action = 0;
594 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
595 nmhdr.itemNew.hItem = dragItem;
596 nmhdr.itemNew.state = dragItem->state;
597 nmhdr.itemNew.lParam = dragItem->lParam;
598
599 nmhdr.ptDrag.x = pt.x;
600 nmhdr.ptDrag.y = pt.y;
601
602 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
603 }
604
605
606 static BOOL
607 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
608 HDC hdc, RECT rc)
609 {
610 HWND hwnd = infoPtr->hwnd;
611 NMTVCUSTOMDRAW nmcdhdr;
612 LPNMCUSTOMDRAW nmcd;
613
614 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
615
616 nmcd = &nmcdhdr.nmcd;
617 nmcd->hdr.hwndFrom = hwnd;
618 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
619 nmcd->hdr.code = NM_CUSTOMDRAW;
620 nmcd->dwDrawStage = dwDrawStage;
621 nmcd->hdc = hdc;
622 nmcd->rc = rc;
623 nmcd->dwItemSpec = 0;
624 nmcd->uItemState = 0;
625 nmcd->lItemlParam = 0;
626 nmcdhdr.clrText = infoPtr->clrText;
627 nmcdhdr.clrTextBk = infoPtr->clrBk;
628 nmcdhdr.iLevel = 0;
629
630 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr.nmcd.hdr);
631 }
632
633
634
635 /* FIXME: need to find out when the flags in uItemState need to be set */
636
637 static BOOL
638 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
639 TREEVIEW_ITEM *item, UINT uItemDrawState,
640 NMTVCUSTOMDRAW *nmcdhdr)
641 {
642 HWND hwnd = infoPtr->hwnd;
643 LPNMCUSTOMDRAW nmcd;
644 DWORD dwDrawStage;
645 DWORD_PTR dwItemSpec;
646 UINT uItemState;
647
648 dwDrawStage = CDDS_ITEM | uItemDrawState;
649 dwItemSpec = (DWORD_PTR)item;
650 uItemState = 0;
651 if (item->state & TVIS_SELECTED)
652 uItemState |= CDIS_SELECTED;
653 if (item == infoPtr->selectedItem)
654 uItemState |= CDIS_FOCUS;
655 if (item == infoPtr->hotItem)
656 uItemState |= CDIS_HOT;
657
658 nmcd = &nmcdhdr->nmcd;
659 nmcd->hdr.hwndFrom = hwnd;
660 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
661 nmcd->hdr.code = NM_CUSTOMDRAW;
662 nmcd->dwDrawStage = dwDrawStage;
663 nmcd->hdc = hdc;
664 nmcd->rc = item->rect;
665 nmcd->dwItemSpec = dwItemSpec;
666 nmcd->uItemState = uItemState;
667 nmcd->lItemlParam = item->lParam;
668 nmcdhdr->iLevel = item->iLevel;
669
670 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
671 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
672 nmcd->uItemState, nmcd->lItemlParam);
673
674 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr->nmcd.hdr);
675 }
676
677 static BOOL
678 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
679 {
680 HWND hwnd = infoPtr->hwnd;
681 NMTVDISPINFOW tvdi;
682 BOOL ret;
683
684 tvdi.hdr.hwndFrom = hwnd;
685 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
686 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
687
688 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
689 &tvdi.item, editItem);
690
691 ret = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
692
693 if (!infoPtr->bNtfUnicode)
694 Free(tvdi.item.pszText);
695
696 return ret;
697 }
698
699 static void
700 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
701 UINT mask)
702 {
703 NMTVDISPINFOEXW callback;
704 HWND hwnd = infoPtr->hwnd;
705
706 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
707 mask &= item->callbackMask;
708
709 if (mask == 0) return;
710
711 callback.hdr.hwndFrom = hwnd;
712 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
713 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
714
715 /* 'state' always contains valid value, as well as 'lParam'.
716 * All other parameters are uninitialized.
717 */
718 callback.item.pszText = item->pszText;
719 callback.item.cchTextMax = item->cchTextMax;
720 callback.item.mask = mask;
721 callback.item.hItem = item;
722 callback.item.state = item->state;
723 callback.item.lParam = item->lParam;
724
725 /* If text is changed we need to recalculate textWidth */
726 if (mask & TVIF_TEXT)
727 item->textWidth = 0;
728
729 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, &callback.hdr);
730 TRACE("resulting code 0x%08x\n", callback.hdr.code);
731
732 /* It may have changed due to a call to SetItem. */
733 mask &= item->callbackMask;
734
735 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
736 {
737 /* Instead of copying text into our buffer user specified his own */
738 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
739 LPWSTR newText;
740 int buflen;
741 int len = MultiByteToWideChar( CP_ACP, 0,
742 (LPSTR)callback.item.pszText, -1,
743 NULL, 0);
744 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
745 newText = ReAlloc(item->pszText, buflen);
746
747 TRACE("returned str %s, len=%d, buflen=%d\n",
748 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
749
750 if (newText)
751 {
752 item->pszText = newText;
753 MultiByteToWideChar( CP_ACP, 0,
754 (LPSTR)callback.item.pszText, -1,
755 item->pszText, buflen/sizeof(WCHAR));
756 item->cchTextMax = buflen/sizeof(WCHAR);
757 }
758 /* If ReAlloc fails we have nothing to do, but keep original text */
759 }
760 else {
761 int len = max(lstrlenW(callback.item.pszText) + 1,
762 TEXT_CALLBACK_SIZE);
763 LPWSTR newText = ReAlloc(item->pszText, len);
764
765 TRACE("returned wstr %s, len=%d\n",
766 debugstr_w(callback.item.pszText), len);
767
768 if (newText)
769 {
770 item->pszText = newText;
771 strcpyW(item->pszText, callback.item.pszText);
772 item->cchTextMax = len;
773 }
774 /* If ReAlloc fails we have nothing to do, but keep original text */
775 }
776 }
777 else if (mask & TVIF_TEXT) {
778 /* User put text into our buffer, that is ok unless A string */
779 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
780 LPWSTR newText;
781 int buflen;
782 int len = MultiByteToWideChar( CP_ACP, 0,
783 (LPSTR)callback.item.pszText, -1,
784 NULL, 0);
785 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
786 newText = Alloc(buflen);
787
788 TRACE("same buffer str %s, len=%d, buflen=%d\n",
789 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
790
791 if (newText)
792 {
793 LPWSTR oldText = item->pszText;
794 item->pszText = newText;
795 MultiByteToWideChar( CP_ACP, 0,
796 (LPSTR)callback.item.pszText, -1,
797 item->pszText, buflen/sizeof(WCHAR));
798 item->cchTextMax = buflen/sizeof(WCHAR);
799 Free(oldText);
800 }
801 }
802 }
803
804 if (mask & TVIF_IMAGE)
805 item->iImage = callback.item.iImage;
806
807 if (mask & TVIF_SELECTEDIMAGE)
808 item->iSelectedImage = callback.item.iSelectedImage;
809
810 if (mask & TVIF_EXPANDEDIMAGE)
811 item->iExpandedImage = callback.item.iExpandedImage;
812
813 if (mask & TVIF_CHILDREN)
814 item->cChildren = callback.item.cChildren;
815
816 if (callback.item.mask & TVIF_STATE)
817 {
818 item->state &= ~callback.item.stateMask;
819 item->state |= (callback.item.state & callback.item.stateMask);
820 }
821
822 /* These members are now permanently set. */
823 if (callback.item.mask & TVIF_DI_SETITEM)
824 item->callbackMask &= ~callback.item.mask;
825 }
826
827 /***************************************************************************
828 * This function uses cChildren field to decide whether the item has
829 * children or not.
830 * Note: if this returns TRUE, the child items may not actually exist,
831 * they could be virtual.
832 *
833 * Just use item->firstChild to check for physical children.
834 */
835 static BOOL
836 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
837 {
838 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
839
840 return item->cChildren > 0;
841 }
842
843 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
844 {
845 INT format;
846
847 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
848
849 if (nCommand != NF_REQUERY) return 0;
850
851 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
852 TRACE("format=%d\n", format);
853
854 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
855
856 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
857
858 return format;
859 }
860
861 /* Item Position ********************************************************/
862
863 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
864 static VOID
865 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
866 {
867 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
868 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
869 > TVS_LINESATROOT);
870
871 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
872 - infoPtr->scrollX;
873 item->stateOffset = item->linesOffset + infoPtr->uIndent;
874 item->imageOffset = item->stateOffset
875 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
876 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
877 }
878
879 static VOID
880 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
881 {
882 HDC hdc;
883 HFONT hOldFont=0;
884 SIZE sz;
885
886 /* DRAW's OM docker creates items like this */
887 if (item->pszText == NULL)
888 {
889 item->textWidth = 0;
890 return;
891 }
892
893 if (hDC != 0)
894 {
895 hdc = hDC;
896 }
897 else
898 {
899 hdc = GetDC(infoPtr->hwnd);
900 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
901 }
902
903 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
904 item->textWidth = sz.cx;
905
906 if (hDC == 0)
907 {
908 SelectObject(hdc, hOldFont);
909 ReleaseDC(0, hdc);
910 }
911 }
912
913 static VOID
914 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
915 {
916 item->rect.top = infoPtr->uItemHeight *
917 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
918
919 item->rect.bottom = item->rect.top
920 + infoPtr->uItemHeight * item->iIntegral - 1;
921
922 item->rect.left = 0;
923 item->rect.right = infoPtr->clientWidth;
924 }
925
926 /* We know that only items after start need their order updated. */
927 static void
928 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
929 {
930 TREEVIEW_ITEM *item;
931 int order;
932
933 if (!start)
934 {
935 start = infoPtr->root->firstChild;
936 order = 0;
937 }
938 else
939 order = start->visibleOrder;
940
941 for (item = start; item != NULL;
942 item = TREEVIEW_GetNextListItem(infoPtr, item))
943 {
944 if (!ISVISIBLE(item) && order > 0)
945 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
946 item->visibleOrder = order;
947 order += item->iIntegral;
948 }
949
950 infoPtr->maxVisibleOrder = order;
951
952 for (item = start; item != NULL;
953 item = TREEVIEW_GetNextListItem(infoPtr, item))
954 {
955 TREEVIEW_ComputeItemRect(infoPtr, item);
956 }
957 }
958
959
960 /* Update metrics of all items in selected subtree.
961 * root must be expanded
962 */
963 static VOID
964 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
965 {
966 TREEVIEW_ITEM *sibling;
967 HDC hdc;
968 HFONT hOldFont;
969
970 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
971 return;
972
973 root->state &= ~TVIS_EXPANDED;
974 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
975 root->state |= TVIS_EXPANDED;
976
977 hdc = GetDC(infoPtr->hwnd);
978 hOldFont = SelectObject(hdc, infoPtr->hFont);
979
980 for (; root != sibling;
981 root = TREEVIEW_GetNextListItem(infoPtr, root))
982 {
983 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
984
985 if (root->callbackMask & TVIF_TEXT)
986 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
987
988 if (root->textWidth == 0)
989 {
990 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
991 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
992 }
993 }
994
995 SelectObject(hdc, hOldFont);
996 ReleaseDC(infoPtr->hwnd, hdc);
997 }
998
999 /* Item Allocation **********************************************************/
1000
1001 static TREEVIEW_ITEM *
1002 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
1003 {
1004 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1005
1006 if (!newItem)
1007 return NULL;
1008
1009 /* I_IMAGENONE would make more sense but this is neither what is
1010 * documented (MSDN doesn't specify) nor what Windows actually does
1011 * (it sets it to zero)... and I can so imagine an application using
1012 * inc/dec to toggle the images. */
1013 newItem->iImage = 0;
1014 newItem->iSelectedImage = 0;
1015 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1016
1017 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1018 {
1019 Free(newItem);
1020 return NULL;
1021 }
1022
1023 return newItem;
1024 }
1025
1026 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1027 * free item->pszText. */
1028 static void
1029 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1030 {
1031 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1032 if (infoPtr->selectedItem == item)
1033 infoPtr->selectedItem = NULL;
1034 if (infoPtr->hotItem == item)
1035 infoPtr->hotItem = NULL;
1036 if (infoPtr->focusedItem == item)
1037 infoPtr->focusedItem = NULL;
1038 if (infoPtr->firstVisible == item)
1039 infoPtr->firstVisible = NULL;
1040 if (infoPtr->dropItem == item)
1041 infoPtr->dropItem = NULL;
1042 if (infoPtr->insertMarkItem == item)
1043 infoPtr->insertMarkItem = NULL;
1044 Free(item);
1045 }
1046
1047
1048 /* Item Insertion *******************************************************/
1049
1050 /***************************************************************************
1051 * This method inserts newItem before sibling as a child of parent.
1052 * sibling can be NULL, but only if parent has no children.
1053 */
1054 static void
1055 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1056 TREEVIEW_ITEM *parent)
1057 {
1058 assert(parent != NULL);
1059
1060 if (sibling != NULL)
1061 {
1062 assert(sibling->parent == parent);
1063
1064 if (sibling->prevSibling != NULL)
1065 sibling->prevSibling->nextSibling = newItem;
1066
1067 newItem->prevSibling = sibling->prevSibling;
1068 sibling->prevSibling = newItem;
1069 }
1070 else
1071 newItem->prevSibling = NULL;
1072
1073 newItem->nextSibling = sibling;
1074
1075 if (parent->firstChild == sibling)
1076 parent->firstChild = newItem;
1077
1078 if (parent->lastChild == NULL)
1079 parent->lastChild = newItem;
1080 }
1081
1082 /***************************************************************************
1083 * This method inserts newItem after sibling as a child of parent.
1084 * sibling can be NULL, but only if parent has no children.
1085 */
1086 static void
1087 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1088 TREEVIEW_ITEM *parent)
1089 {
1090 assert(parent != NULL);
1091
1092 if (sibling != NULL)
1093 {
1094 assert(sibling->parent == parent);
1095
1096 if (sibling->nextSibling != NULL)
1097 sibling->nextSibling->prevSibling = newItem;
1098
1099 newItem->nextSibling = sibling->nextSibling;
1100 sibling->nextSibling = newItem;
1101 }
1102 else
1103 newItem->nextSibling = NULL;
1104
1105 newItem->prevSibling = sibling;
1106
1107 if (parent->lastChild == sibling)
1108 parent->lastChild = newItem;
1109
1110 if (parent->firstChild == NULL)
1111 parent->firstChild = newItem;
1112 }
1113
1114 static BOOL
1115 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1116 const TVITEMEXW *tvItem, BOOL isW)
1117 {
1118 UINT callbackClear = 0;
1119 UINT callbackSet = 0;
1120
1121 TRACE("item %p\n", item);
1122 /* Do this first in case it fails. */
1123 if (tvItem->mask & TVIF_TEXT)
1124 {
1125 item->textWidth = 0; /* force width recalculation */
1126 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1127 {
1128 int len;
1129 LPWSTR newText;
1130 if (isW)
1131 len = lstrlenW(tvItem->pszText) + 1;
1132 else
1133 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1134
1135 newText = ReAlloc(item->pszText, len * sizeof(WCHAR));
1136
1137 if (newText == NULL) return FALSE;
1138
1139 callbackClear |= TVIF_TEXT;
1140
1141 item->pszText = newText;
1142 item->cchTextMax = len;
1143 if (isW)
1144 lstrcpynW(item->pszText, tvItem->pszText, len);
1145 else
1146 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1147 item->pszText, len);
1148
1149 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1150 }
1151 else
1152 {
1153 callbackSet |= TVIF_TEXT;
1154
1155 item->pszText = ReAlloc(item->pszText,
1156 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1157 item->cchTextMax = TEXT_CALLBACK_SIZE;
1158 TRACE("setting callback, item %p\n", item);
1159 }
1160 }
1161
1162 if (tvItem->mask & TVIF_CHILDREN)
1163 {
1164 item->cChildren = tvItem->cChildren;
1165
1166 if (item->cChildren == I_CHILDRENCALLBACK)
1167 callbackSet |= TVIF_CHILDREN;
1168 else
1169 callbackClear |= TVIF_CHILDREN;
1170 }
1171
1172 if (tvItem->mask & TVIF_IMAGE)
1173 {
1174 item->iImage = tvItem->iImage;
1175
1176 if (item->iImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_IMAGE;
1178 else
1179 callbackClear |= TVIF_IMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1183 {
1184 item->iSelectedImage = tvItem->iSelectedImage;
1185
1186 if (item->iSelectedImage == I_IMAGECALLBACK)
1187 callbackSet |= TVIF_SELECTEDIMAGE;
1188 else
1189 callbackClear |= TVIF_SELECTEDIMAGE;
1190 }
1191
1192 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1193 {
1194 item->iExpandedImage = tvItem->iExpandedImage;
1195
1196 if (item->iExpandedImage == I_IMAGECALLBACK)
1197 callbackSet |= TVIF_EXPANDEDIMAGE;
1198 else
1199 callbackClear |= TVIF_EXPANDEDIMAGE;
1200 }
1201
1202 if (tvItem->mask & TVIF_PARAM)
1203 item->lParam = tvItem->lParam;
1204
1205 /* If the application sets TVIF_INTEGRAL without
1206 * supplying a TVITEMEX structure, it's toast. */
1207 if (tvItem->mask & TVIF_INTEGRAL)
1208 item->iIntegral = tvItem->iIntegral;
1209
1210 if (tvItem->mask & TVIF_STATE)
1211 {
1212 TRACE("prevstate,state,mask:%x,%x,%x\n", item->state, tvItem->state,
1213 tvItem->stateMask);
1214 item->state &= ~tvItem->stateMask;
1215 item->state |= (tvItem->state & tvItem->stateMask);
1216 }
1217
1218 if (tvItem->mask & TVIF_STATEEX)
1219 {
1220 FIXME("New extended state: %x\n", tvItem->uStateEx);
1221 }
1222
1223 item->callbackMask |= callbackSet;
1224 item->callbackMask &= ~callbackClear;
1225
1226 return TRUE;
1227 }
1228
1229 /* Note that the new item is pre-zeroed. */
1230 static LRESULT
1231 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1232 {
1233 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1234 HTREEITEM insertAfter;
1235 TREEVIEW_ITEM *newItem, *parentItem;
1236 BOOL bTextUpdated = FALSE;
1237
1238 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1239 {
1240 parentItem = infoPtr->root;
1241 }
1242 else
1243 {
1244 parentItem = ptdi->hParent;
1245
1246 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1247 {
1248 WARN("invalid parent %p\n", parentItem);
1249 return 0;
1250 }
1251 }
1252
1253 insertAfter = ptdi->hInsertAfter;
1254
1255 /* Validate this now for convenience. */
1256 switch ((DWORD_PTR)insertAfter)
1257 {
1258 case (DWORD_PTR)TVI_FIRST:
1259 case (DWORD_PTR)TVI_LAST:
1260 case (DWORD_PTR)TVI_SORT:
1261 break;
1262
1263 default:
1264 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1265 insertAfter->parent != parentItem)
1266 {
1267 WARN("invalid insert after %p\n", insertAfter);
1268 insertAfter = TVI_LAST;
1269 }
1270 }
1271
1272 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1273 (tvItem->mask & TVIF_TEXT)
1274 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1275 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1276 : "<no label>");
1277
1278 newItem = TREEVIEW_AllocateItem(infoPtr);
1279 if (newItem == NULL)
1280 return 0;
1281
1282 newItem->parent = parentItem;
1283 newItem->iIntegral = 1;
1284 newItem->visibleOrder = -1;
1285
1286 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1287 return 0;
1288
1289 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1290
1291 infoPtr->uNumItems++;
1292
1293 switch ((DWORD_PTR)insertAfter)
1294 {
1295 case (DWORD_PTR)TVI_FIRST:
1296 {
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1299 if (infoPtr->firstVisible == originalFirst)
1300 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1301 }
1302 break;
1303
1304 case (DWORD_PTR)TVI_LAST:
1305 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1306 break;
1307
1308 /* hInsertAfter names a specific item we want to insert after */
1309 default:
1310 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1311 break;
1312
1313 case (DWORD_PTR)TVI_SORT:
1314 {
1315 TREEVIEW_ITEM *aChild;
1316 TREEVIEW_ITEM *previousChild = NULL;
1317 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1318 BOOL bItemInserted = FALSE;
1319
1320 aChild = parentItem->firstChild;
1321
1322 bTextUpdated = TRUE;
1323 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1324
1325 /* Iterate the parent children to see where we fit in */
1326 while (aChild != NULL)
1327 {
1328 INT comp;
1329
1330 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1331 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1332
1333 if (comp < 0) /* we are smaller than the current one */
1334 {
1335 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1336 if (infoPtr->firstVisible == originalFirst &&
1337 aChild == originalFirst)
1338 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1339 bItemInserted = TRUE;
1340 break;
1341 }
1342 else if (comp > 0) /* we are bigger than the current one */
1343 {
1344 previousChild = aChild;
1345
1346 /* This will help us to exit if there is no more sibling */
1347 aChild = (aChild->nextSibling == 0)
1348 ? NULL
1349 : aChild->nextSibling;
1350
1351 /* Look at the next item */
1352 continue;
1353 }
1354 else if (comp == 0)
1355 {
1356 /*
1357 * An item with this name is already existing, therefore,
1358 * we add after the one we found
1359 */
1360 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1361 bItemInserted = TRUE;
1362 break;
1363 }
1364 }
1365
1366 /*
1367 * we reach the end of the child list and the item has not
1368 * yet been inserted, therefore, insert it after the last child.
1369 */
1370 if ((!bItemInserted) && (aChild == NULL))
1371 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1372
1373 break;
1374 }
1375 }
1376
1377
1378 TRACE("new item %p; parent %p, mask %x\n", newItem,
1379 newItem->parent, tvItem->mask);
1380
1381 newItem->iLevel = newItem->parent->iLevel + 1;
1382
1383 if (newItem->parent->cChildren == 0)
1384 newItem->parent->cChildren = 1;
1385
1386 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1387 {
1388 if (STATEIMAGEINDEX(newItem->state) == 0)
1389 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1390 }
1391
1392 if (infoPtr->firstVisible == NULL)
1393 infoPtr->firstVisible = newItem;
1394
1395 TREEVIEW_VerifyTree(infoPtr);
1396
1397 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1398
1399 if (parentItem == infoPtr->root ||
1400 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1401 {
1402 TREEVIEW_ITEM *item;
1403 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1404
1405 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1406 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1407
1408 if (!bTextUpdated)
1409 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1410
1411 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1412 TREEVIEW_UpdateScrollBars(infoPtr);
1413 /*
1414 * if the item was inserted in a visible part of the tree,
1415 * invalidate it, as well as those after it
1416 */
1417 for (item = newItem;
1418 item != NULL;
1419 item = TREEVIEW_GetNextListItem(infoPtr, item))
1420 TREEVIEW_Invalidate(infoPtr, item);
1421 }
1422 else
1423 {
1424 /* refresh treeview if newItem is the first item inserted under parentItem */
1425 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1426 {
1427 /* parent got '+' - update it */
1428 TREEVIEW_Invalidate(infoPtr, parentItem);
1429 }
1430 }
1431
1432 return (LRESULT)newItem;
1433 }
1434
1435 /* Item Deletion ************************************************************/
1436 static void
1437 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1438
1439 static void
1440 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1441 {
1442 TREEVIEW_ITEM *kill = parentItem->firstChild;
1443
1444 while (kill != NULL)
1445 {
1446 TREEVIEW_ITEM *next = kill->nextSibling;
1447
1448 TREEVIEW_RemoveItem(infoPtr, kill);
1449
1450 kill = next;
1451 }
1452
1453 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1454 assert(parentItem->firstChild == NULL);
1455 assert(parentItem->lastChild == NULL);
1456 }
1457
1458 static void
1459 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1460 {
1461 TREEVIEW_ITEM *parentItem = item->parent;
1462
1463 assert(item != NULL);
1464 assert(item->parent != NULL); /* i.e. it must not be the root */
1465
1466 if (parentItem->firstChild == item)
1467 parentItem->firstChild = item->nextSibling;
1468
1469 if (parentItem->lastChild == item)
1470 parentItem->lastChild = item->prevSibling;
1471
1472 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1473 && parentItem->cChildren > 0)
1474 parentItem->cChildren = 0;
1475
1476 if (item->prevSibling)
1477 item->prevSibling->nextSibling = item->nextSibling;
1478
1479 if (item->nextSibling)
1480 item->nextSibling->prevSibling = item->prevSibling;
1481 }
1482
1483 static void
1484 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1485 {
1486 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1487
1488 if (item->firstChild)
1489 TREEVIEW_RemoveAllChildren(infoPtr, item);
1490
1491 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1492 TVIF_HANDLE | TVIF_PARAM, item, 0);
1493
1494 TREEVIEW_UnlinkItem(item);
1495
1496 infoPtr->uNumItems--;
1497
1498 if (item->pszText != LPSTR_TEXTCALLBACKW)
1499 Free(item->pszText);
1500
1501 TREEVIEW_FreeItem(infoPtr, item);
1502 }
1503
1504
1505 /* Empty out the tree. */
1506 static void
1507 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1508 {
1509 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1510
1511 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1512 }
1513
1514 static LRESULT
1515 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1516 {
1517 TREEVIEW_ITEM *newSelection = NULL;
1518 TREEVIEW_ITEM *newFirstVisible = NULL;
1519 TREEVIEW_ITEM *parent, *prev = NULL;
1520 BOOL visible = FALSE;
1521
1522 if (item == TVI_ROOT || !item)
1523 {
1524 TRACE("TVI_ROOT\n");
1525 parent = infoPtr->root;
1526 newSelection = NULL;
1527 visible = TRUE;
1528 TREEVIEW_RemoveTree(infoPtr);
1529 }
1530 else
1531 {
1532 if (!TREEVIEW_ValidItem(infoPtr, item))
1533 return FALSE;
1534
1535 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1536 parent = item->parent;
1537
1538 if (ISVISIBLE(item))
1539 {
1540 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1541 visible = TRUE;
1542 }
1543
1544 if (infoPtr->selectedItem != NULL
1545 && (item == infoPtr->selectedItem
1546 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1547 {
1548 if (item->nextSibling)
1549 newSelection = item->nextSibling;
1550 else if (item->parent != infoPtr->root)
1551 newSelection = item->parent;
1552 else
1553 newSelection = item->prevSibling;
1554 TRACE("newSelection = %p\n", newSelection);
1555 }
1556
1557 if (infoPtr->firstVisible == item)
1558 {
1559 if (item->nextSibling)
1560 newFirstVisible = item->nextSibling;
1561 else if (item->prevSibling)
1562 newFirstVisible = item->prevSibling;
1563 else if (item->parent != infoPtr->root)
1564 newFirstVisible = item->parent;
1565 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1566 }
1567 else
1568 newFirstVisible = infoPtr->firstVisible;
1569
1570 TREEVIEW_RemoveItem(infoPtr, item);
1571 }
1572
1573 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1574 if (!infoPtr->selectedItem && newSelection)
1575 {
1576 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1577 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1578 }
1579
1580 /* Validate insertMark dropItem.
1581 * hotItem ??? - used for comparison only.
1582 */
1583 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1584 infoPtr->insertMarkItem = 0;
1585
1586 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1587 infoPtr->dropItem = 0;
1588
1589 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1590 newFirstVisible = infoPtr->root->firstChild;
1591
1592 TREEVIEW_VerifyTree(infoPtr);
1593
1594 if (!infoPtr->bRedraw) return TRUE;
1595
1596 if (visible)
1597 {
1598 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1599 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1600 TREEVIEW_UpdateScrollBars(infoPtr);
1601 TREEVIEW_Invalidate(infoPtr, NULL);
1602 }
1603 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1604 {
1605 /* parent lost '+/-' - update it */
1606 TREEVIEW_Invalidate(infoPtr, parent);
1607 }
1608
1609 return TRUE;
1610 }
1611
1612
1613 /* Get/Set Messages *********************************************************/
1614 static LRESULT
1615 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1616 {
1617 infoPtr->bRedraw = wParam ? TRUE : FALSE;
1618
1619 if (infoPtr->bRedraw)
1620 {
1621 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1622 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1623 TREEVIEW_UpdateScrollBars(infoPtr);
1624 TREEVIEW_Invalidate(infoPtr, NULL);
1625 }
1626 return 0;
1627 }
1628
1629 static LRESULT
1630 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1631 {
1632 TRACE("\n");
1633 return infoPtr->uIndent;
1634 }
1635
1636 static LRESULT
1637 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1638 {
1639 TRACE("\n");
1640
1641 if (newIndent < MINIMUM_INDENT)
1642 newIndent = MINIMUM_INDENT;
1643
1644 if (infoPtr->uIndent != newIndent)
1645 {
1646 infoPtr->uIndent = newIndent;
1647 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1648 TREEVIEW_UpdateScrollBars(infoPtr);
1649 TREEVIEW_Invalidate(infoPtr, NULL);
1650 }
1651
1652 return 0;
1653 }
1654
1655
1656 static LRESULT
1657 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1658 {
1659 TRACE("\n");
1660 return (LRESULT)infoPtr->hwndToolTip;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1665 {
1666 HWND prevToolTip;
1667
1668 TRACE("\n");
1669 prevToolTip = infoPtr->hwndToolTip;
1670 infoPtr->hwndToolTip = hwndTT;
1671
1672 return (LRESULT)prevToolTip;
1673 }
1674
1675 static LRESULT
1676 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1677 {
1678 BOOL rc = infoPtr->bNtfUnicode;
1679 infoPtr->bNtfUnicode = fUnicode;
1680 return rc;
1681 }
1682
1683 static LRESULT
1684 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1685 {
1686 return infoPtr->bNtfUnicode;
1687 }
1688
1689 static LRESULT
1690 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1691 {
1692 return infoPtr->uScrollTime;
1693 }
1694
1695 static LRESULT
1696 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1697 {
1698 UINT uOldScrollTime = infoPtr->uScrollTime;
1699
1700 infoPtr->uScrollTime = min(uScrollTime, 100);
1701
1702 return uOldScrollTime;
1703 }
1704
1705
1706 static LRESULT
1707 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1708 {
1709 TRACE("\n");
1710
1711 switch (wParam)
1712 {
1713 case TVSIL_NORMAL:
1714 return (LRESULT)infoPtr->himlNormal;
1715
1716 case TVSIL_STATE:
1717 return (LRESULT)infoPtr->himlState;
1718
1719 default:
1720 return 0;
1721 }
1722 }
1723
1724 #define TVHEIGHT_MIN 16
1725 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1726
1727 /* Compute the natural height for items. */
1728 static UINT
1729 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1730 {
1731 TEXTMETRICW tm;
1732 HDC hdc = GetDC(0);
1733 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1734 UINT height;
1735
1736 /* Height is the maximum of:
1737 * 16 (a hack because our fonts are tiny), and
1738 * The text height + border & margin, and
1739 * The size of the normal image list
1740 */
1741 GetTextMetricsW(hdc, &tm);
1742 SelectObject(hdc, hOldFont);
1743 ReleaseDC(0, hdc);
1744
1745 height = TVHEIGHT_MIN;
1746 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1747 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1748 if (height < infoPtr->normalImageHeight)
1749 height = infoPtr->normalImageHeight;
1750
1751 /* Round down, unless we support odd ("non even") heights. */
1752 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1753 height &= ~1;
1754
1755 return height;
1756 }
1757
1758 static LRESULT
1759 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1760 {
1761 HIMAGELIST himlOld = 0;
1762 int oldWidth = infoPtr->normalImageWidth;
1763 int oldHeight = infoPtr->normalImageHeight;
1764
1765
1766 TRACE("%lx,%p\n", wParam, himlNew);
1767
1768 switch (wParam)
1769 {
1770 case TVSIL_NORMAL:
1771 himlOld = infoPtr->himlNormal;
1772 infoPtr->himlNormal = himlNew;
1773
1774 if (himlNew != NULL)
1775 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1776 &infoPtr->normalImageHeight);
1777 else
1778 {
1779 infoPtr->normalImageWidth = 0;
1780 infoPtr->normalImageHeight = 0;
1781 }
1782
1783 break;
1784
1785 case TVSIL_STATE:
1786 himlOld = infoPtr->himlState;
1787 infoPtr->himlState = himlNew;
1788
1789 if (himlNew != NULL)
1790 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1791 &infoPtr->stateImageHeight);
1792 else
1793 {
1794 infoPtr->stateImageWidth = 0;
1795 infoPtr->stateImageHeight = 0;
1796 }
1797
1798 break;
1799 }
1800
1801 if (oldWidth != infoPtr->normalImageWidth ||
1802 oldHeight != infoPtr->normalImageHeight)
1803 {
1804 BOOL bRecalcVisible = FALSE;
1805
1806 if (oldHeight != infoPtr->normalImageHeight &&
1807 !infoPtr->bHeightSet)
1808 {
1809 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1810 bRecalcVisible = TRUE;
1811 }
1812
1813 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1814 infoPtr->normalImageWidth != infoPtr->uIndent)
1815 {
1816 infoPtr->uIndent = infoPtr->normalImageWidth;
1817 bRecalcVisible = TRUE;
1818 }
1819
1820 if (bRecalcVisible)
1821 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1822
1823 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1824 TREEVIEW_UpdateScrollBars(infoPtr);
1825 }
1826
1827 TREEVIEW_Invalidate(infoPtr, NULL);
1828
1829 return (LRESULT)himlOld;
1830 }
1831
1832 static LRESULT
1833 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1834 {
1835 INT prevHeight = infoPtr->uItemHeight;
1836
1837 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1838 if (newHeight == -1)
1839 {
1840 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1841 infoPtr->bHeightSet = FALSE;
1842 }
1843 else
1844 {
1845 if (newHeight == 0) newHeight = 1;
1846 infoPtr->uItemHeight = newHeight;
1847 infoPtr->bHeightSet = TRUE;
1848 }
1849
1850 /* Round down, unless we support odd ("non even") heights. */
1851 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1852 {
1853 infoPtr->uItemHeight &= ~1;
1854 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1855 }
1856
1857 if (infoPtr->uItemHeight != prevHeight)
1858 {
1859 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1860 TREEVIEW_UpdateScrollBars(infoPtr);
1861 TREEVIEW_Invalidate(infoPtr, NULL);
1862 }
1863
1864 return prevHeight;
1865 }
1866
1867 static LRESULT
1868 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1869 {
1870 TRACE("\n");
1871 return infoPtr->uItemHeight;
1872 }
1873
1874
1875 static LRESULT
1876 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1877 {
1878 TRACE("%p\n", infoPtr->hFont);
1879 return (LRESULT)infoPtr->hFont;
1880 }
1881
1882
1883 static INT CALLBACK
1884 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1885 {
1886 (void)unused;
1887
1888 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1889
1890 return 1;
1891 }
1892
1893 static LRESULT
1894 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1895 {
1896 UINT uHeight = infoPtr->uItemHeight;
1897
1898 TRACE("%p %i\n", hFont, bRedraw);
1899
1900 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1901
1902 DeleteObject(infoPtr->hBoldFont);
1903 DeleteObject(infoPtr->hUnderlineFont);
1904 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1905 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1906
1907 if (!infoPtr->bHeightSet)
1908 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1909
1910 if (uHeight != infoPtr->uItemHeight)
1911 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1912
1913 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1914
1915 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1916 TREEVIEW_UpdateScrollBars(infoPtr);
1917
1918 if (bRedraw)
1919 TREEVIEW_Invalidate(infoPtr, NULL);
1920
1921 return 0;
1922 }
1923
1924
1925 static LRESULT
1926 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1927 {
1928 TRACE("\n");
1929 return (LRESULT)infoPtr->clrLine;
1930 }
1931
1932 static LRESULT
1933 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1934 {
1935 COLORREF prevColor = infoPtr->clrLine;
1936
1937 TRACE("\n");
1938 infoPtr->clrLine = color;
1939 return (LRESULT)prevColor;
1940 }
1941
1942
1943 static LRESULT
1944 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1945 {
1946 TRACE("\n");
1947 return (LRESULT)infoPtr->clrText;
1948 }
1949
1950 static LRESULT
1951 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1952 {
1953 COLORREF prevColor = infoPtr->clrText;
1954
1955 TRACE("\n");
1956 infoPtr->clrText = color;
1957
1958 if (infoPtr->clrText != prevColor)
1959 TREEVIEW_Invalidate(infoPtr, NULL);
1960
1961 return (LRESULT)prevColor;
1962 }
1963
1964
1965 static LRESULT
1966 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1967 {
1968 TRACE("\n");
1969 return (LRESULT)infoPtr->clrBk;
1970 }
1971
1972 static LRESULT
1973 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1974 {
1975 COLORREF prevColor = infoPtr->clrBk;
1976
1977 TRACE("\n");
1978 infoPtr->clrBk = newColor;
1979
1980 if (newColor != prevColor)
1981 TREEVIEW_Invalidate(infoPtr, NULL);
1982
1983 return (LRESULT)prevColor;
1984 }
1985
1986
1987 static LRESULT
1988 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1989 {
1990 TRACE("\n");
1991 return (LRESULT)infoPtr->clrInsertMark;
1992 }
1993
1994 static LRESULT
1995 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1996 {
1997 COLORREF prevColor = infoPtr->clrInsertMark;
1998
1999 TRACE("%x\n", color);
2000 infoPtr->clrInsertMark = color;
2001
2002 return (LRESULT)prevColor;
2003 }
2004
2005
2006 static LRESULT
2007 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2008 {
2009 TRACE("%d %p\n", wParam, item);
2010
2011 if (!TREEVIEW_ValidItem(infoPtr, item))
2012 return 0;
2013
2014 infoPtr->insertBeforeorAfter = wParam;
2015 infoPtr->insertMarkItem = item;
2016
2017 TREEVIEW_Invalidate(infoPtr, NULL);
2018
2019 return 1;
2020 }
2021
2022
2023 /************************************************************************
2024 * Some serious braindamage here. lParam is a pointer to both the
2025 * input HTREEITEM and the output RECT.
2026 */
2027 static LRESULT
2028 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2029 {
2030 TREEVIEW_ITEM *item;
2031 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2032
2033 TRACE("\n");
2034
2035 if (pItem == NULL)
2036 return FALSE;
2037
2038 item = *pItem;
2039 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2040 return FALSE;
2041
2042 /*
2043 * If wParam is TRUE return the text size otherwise return
2044 * the whole item size
2045 */
2046 if (fTextRect)
2047 {
2048 /* Windows does not send TVN_GETDISPINFO here. */
2049
2050 lpRect->top = item->rect.top;
2051 lpRect->bottom = item->rect.bottom;
2052
2053 lpRect->left = item->textOffset;
2054 if (!item->textWidth)
2055 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2056
2057 lpRect->right = item->textOffset + item->textWidth + 4;
2058 }
2059 else
2060 {
2061 *lpRect = item->rect;
2062 }
2063
2064 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2065
2066 return TRUE;
2067 }
2068
2069 static inline LRESULT
2070 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2071 {
2072 /* Surprise! This does not take integral height into account. */
2073 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2074 return infoPtr->clientHeight / infoPtr->uItemHeight;
2075 }
2076
2077
2078 static LRESULT
2079 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2080 {
2081 TREEVIEW_ITEM *item = tvItem->hItem;
2082
2083 if (!TREEVIEW_ValidItem(infoPtr, item))
2084 return FALSE;
2085
2086 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2087
2088 if (tvItem->mask & TVIF_CHILDREN)
2089 {
2090 if (item->cChildren==I_CHILDRENCALLBACK)
2091 FIXME("I_CHILDRENCALLBACK not supported\n");
2092 tvItem->cChildren = item->cChildren;
2093 }
2094
2095 if (tvItem->mask & TVIF_HANDLE)
2096 tvItem->hItem = item;
2097
2098 if (tvItem->mask & TVIF_IMAGE)
2099 tvItem->iImage = item->iImage;
2100
2101 if (tvItem->mask & TVIF_INTEGRAL)
2102 tvItem->iIntegral = item->iIntegral;
2103
2104 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2105 tvItem->lParam = item->lParam;
2106
2107 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2108 tvItem->iSelectedImage = item->iSelectedImage;
2109
2110 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2111 tvItem->iExpandedImage = item->iExpandedImage;
2112
2113 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2114 tvItem->state = item->state;
2115
2116 if (tvItem->mask & TVIF_TEXT)
2117 {
2118 if (item->pszText == NULL)
2119 {
2120 if (tvItem->cchTextMax > 0)
2121 tvItem->pszText[0] = '\0';
2122 }
2123 else if (isW)
2124 {
2125 if (item->pszText == LPSTR_TEXTCALLBACKW)
2126 {
2127 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2128 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2129 }
2130 else
2131 {
2132 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2133 }
2134 }
2135 else
2136 {
2137 if (item->pszText == LPSTR_TEXTCALLBACKW)
2138 {
2139 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2140 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2141 }
2142 else
2143 {
2144 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2145 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2146 }
2147 }
2148 }
2149
2150 if (tvItem->mask & TVIF_STATEEX)
2151 {
2152 FIXME("Extended item state not supported, returning 0.\n");
2153 tvItem->uStateEx = 0;
2154 }
2155
2156 TRACE("item <%p>, txt %p, img %d, mask %x\n",
2157 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2158
2159 return TRUE;
2160 }
2161
2162 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2163 * which is wrong. */
2164 static LRESULT
2165 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2166 {
2167 TREEVIEW_ITEM *item;
2168 TREEVIEW_ITEM originalItem;
2169
2170 item = tvItem->hItem;
2171
2172 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2173 tvItem->mask);
2174
2175 if (!TREEVIEW_ValidItem(infoPtr, item))
2176 return FALSE;
2177
2178 /* store the original item values */
2179 originalItem = *item;
2180
2181 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2182 return FALSE;
2183
2184 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2185 if ((tvItem->mask & TVIF_TEXT
2186 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2187 && ISVISIBLE(item))
2188 {
2189 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2190 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2191 }
2192
2193 if (tvItem->mask != 0 && ISVISIBLE(item))
2194 {
2195 /* The refresh updates everything, but we can't wait until then. */
2196 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2197
2198 /* if any of the item's values changed and it's not a callback, redraw the item */
2199 if (item_changed(&originalItem, item, tvItem))
2200 {
2201 if (tvItem->mask & TVIF_INTEGRAL)
2202 {
2203 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2204 TREEVIEW_UpdateScrollBars(infoPtr);
2205
2206 TREEVIEW_Invalidate(infoPtr, NULL);
2207 }
2208 else
2209 {
2210 TREEVIEW_UpdateScrollBars(infoPtr);
2211 TREEVIEW_Invalidate(infoPtr, item);
2212 }
2213 }
2214 }
2215
2216 return TRUE;
2217 }
2218
2219 static LRESULT
2220 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2221 {
2222 TRACE("\n");
2223
2224 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2225 return 0;
2226
2227 return (item->state & mask);
2228 }
2229
2230 static LRESULT
2231 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2232 {
2233 TREEVIEW_ITEM *retval;
2234
2235 retval = 0;
2236
2237 /* handle all the global data here */
2238 switch (which)
2239 {
2240 case TVGN_CHILD: /* Special case: child of 0 is root */
2241 if (item)
2242 break;
2243 /* fall through */
2244 case TVGN_ROOT:
2245 retval = infoPtr->root->firstChild;
2246 break;
2247
2248 case TVGN_CARET:
2249 retval = infoPtr->selectedItem;
2250 break;
2251
2252 case TVGN_FIRSTVISIBLE:
2253 retval = infoPtr->firstVisible;
2254 break;
2255
2256 case TVGN_DROPHILITE:
2257 retval = infoPtr->dropItem;
2258 break;
2259
2260 case TVGN_LASTVISIBLE:
2261 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2262 break;
2263 }
2264
2265 if (retval)
2266 {
2267 TRACE("flags:%x, returns %p\n", which, retval);
2268 return (LRESULT)retval;
2269 }
2270
2271 if (item == TVI_ROOT) item = infoPtr->root;
2272
2273 if (!TREEVIEW_ValidItem(infoPtr, item))
2274 return FALSE;
2275
2276 switch (which)
2277 {
2278 case TVGN_NEXT:
2279 retval = item->nextSibling;
2280 break;
2281 case TVGN_PREVIOUS:
2282 retval = item->prevSibling;
2283 break;
2284 case TVGN_PARENT:
2285 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2286 break;
2287 case TVGN_CHILD:
2288 retval = item->firstChild;
2289 break;
2290 case TVGN_NEXTVISIBLE:
2291 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2292 break;
2293 case TVGN_PREVIOUSVISIBLE:
2294 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2295 break;
2296 default:
2297 TRACE("Unknown msg %x,item %p\n", which, item);
2298 break;
2299 }
2300
2301 TRACE("flags:%x, item %p;returns %p\n", which, item, retval);
2302 return (LRESULT)retval;
2303 }
2304
2305
2306 static LRESULT
2307 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2308 {
2309 TRACE(" %d\n", infoPtr->uNumItems);
2310 return (LRESULT)infoPtr->uNumItems;
2311 }
2312
2313 static VOID
2314 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2315 {
2316 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2317 {
2318 static const unsigned int state_table[] = { 0, 2, 1 };
2319
2320 unsigned int state;
2321
2322 state = STATEIMAGEINDEX(item->state);
2323 TRACE("state:%x\n", state);
2324 item->state &= ~TVIS_STATEIMAGEMASK;
2325
2326 if (state < 3)
2327 state = state_table[state];
2328
2329 item->state |= INDEXTOSTATEIMAGEMASK(state);
2330
2331 TRACE("state:%x\n", state);
2332 TREEVIEW_Invalidate(infoPtr, item);
2333 }
2334 }
2335
2336
2337 /* Painting *************************************************************/
2338
2339 /* Draw the lines and expand button for an item. Also draws one section
2340 * of the line from item's parent to item's parent's next sibling. */
2341 static void
2342 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2343 {
2344 LONG centerx, centery;
2345 BOOL lar = ((infoPtr->dwStyle
2346 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2347 > TVS_LINESATROOT);
2348 HBRUSH hbr, hbrOld;
2349 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2350
2351 if (!lar && item->iLevel == 0)
2352 return;
2353
2354 hbr = CreateSolidBrush(clrBk);
2355 hbrOld = SelectObject(hdc, hbr);
2356
2357 centerx = (item->linesOffset + item->stateOffset) / 2;
2358 centery = (item->rect.top + item->rect.bottom) / 2;
2359
2360 if (infoPtr->dwStyle & TVS_HASLINES)
2361 {
2362 HPEN hOldPen, hNewPen;
2363 HTREEITEM parent;
2364 LOGBRUSH lb;
2365
2366 /* Get a dotted grey pen */
2367 lb.lbStyle = BS_SOLID;
2368 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2369 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2370 hOldPen = SelectObject(hdc, hNewPen);
2371
2372 /* Make sure the center is on a dot (using +2 instead
2373 * of +1 gives us pixel-by-pixel compat with native) */
2374 centery = (centery + 2) & ~1;
2375
2376 MoveToEx(hdc, item->stateOffset, centery, NULL);
2377 LineTo(hdc, centerx - 1, centery);
2378
2379 if (item->prevSibling || item->parent != infoPtr->root)
2380 {
2381 MoveToEx(hdc, centerx, item->rect.top, NULL);
2382 LineTo(hdc, centerx, centery);
2383 }
2384
2385 if (item->nextSibling)
2386 {
2387 MoveToEx(hdc, centerx, centery, NULL);
2388 LineTo(hdc, centerx, item->rect.bottom + 1);
2389 }
2390
2391 /* Draw the line from our parent to its next sibling. */
2392 parent = item->parent;
2393 while (parent != infoPtr->root)
2394 {
2395 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2396
2397 if (parent->nextSibling
2398 /* skip top-levels unless TVS_LINESATROOT */
2399 && parent->stateOffset > parent->linesOffset)
2400 {
2401 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2402 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2403 }
2404
2405 parent = parent->parent;
2406 }
2407
2408 SelectObject(hdc, hOldPen);
2409 DeleteObject(hNewPen);
2410 }
2411
2412 /*
2413 * Display the (+/-) signs
2414 */
2415
2416 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2417 {
2418 if (item->cChildren)
2419 {
2420 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2421 if (theme)
2422 {
2423 RECT glyphRect = item->rect;
2424 glyphRect.left = item->linesOffset;
2425 glyphRect.right = item->stateOffset;
2426 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2427 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2428 &glyphRect, NULL);
2429 }
2430 else
2431 {
2432 LONG height = item->rect.bottom - item->rect.top;
2433 LONG width = item->stateOffset - item->linesOffset;
2434 LONG rectsize = min(height, width) / 4;
2435 /* plussize = ceil(rectsize * 3/4) */
2436 LONG plussize = (rectsize + 1) * 3 / 4;
2437
2438 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2439 HPEN old_pen = SelectObject(hdc, new_pen);
2440
2441 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2442 centerx + rectsize + 2, centery + rectsize + 2);
2443
2444 SelectObject(hdc, old_pen);
2445 DeleteObject(new_pen);
2446
2447 /* draw +/- signs with current text color */
2448 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2449 old_pen = SelectObject(hdc, new_pen);
2450
2451 if (height < 18 || width < 18)
2452 {
2453 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2454 LineTo(hdc, centerx + plussize, centery);
2455
2456 if (!(item->state & TVIS_EXPANDED) ||
2457 (item->state & TVIS_EXPANDPARTIAL))
2458 {
2459 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2460 LineTo(hdc, centerx, centery + plussize);
2461 }
2462 }
2463 else
2464 {
2465 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2466 centerx + plussize, centery + 2);
2467
2468 if (!(item->state & TVIS_EXPANDED) ||
2469 (item->state & TVIS_EXPANDPARTIAL))
2470 {
2471 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2472 centerx + 2, centery + plussize);
2473 SetPixel(hdc, centerx - 1, centery, clrBk);
2474 SetPixel(hdc, centerx + 1, centery, clrBk);
2475 }
2476 }
2477
2478 SelectObject(hdc, old_pen);
2479 DeleteObject(new_pen);
2480 }
2481 }
2482 }
2483 SelectObject(hdc, hbrOld);
2484 DeleteObject(hbr);
2485 }
2486
2487 static void
2488 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2489 {
2490 INT cditem;
2491 HFONT hOldFont;
2492 COLORREF oldTextColor, oldTextBkColor;
2493 int centery;
2494 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2495 NMTVCUSTOMDRAW nmcdhdr;
2496
2497 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2498
2499 /* - If item is drop target or it is selected and window is in focus -
2500 * use blue background (COLOR_HIGHLIGHT).
2501 * - If item is selected, window is not in focus, but it has style
2502 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2503 * - Otherwise - use background color
2504 */
2505 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2506 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2507 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2508 {
2509 if ((item->state & TVIS_DROPHILITED) || inFocus)
2510 {
2511 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2512 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2513 }
2514 else
2515 {
2516 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2517 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2518 }
2519 }
2520 else
2521 {
2522 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2523 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2524 nmcdhdr.clrText = comctl32_color.clrHighlight;
2525 else
2526 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2527 }
2528
2529 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2530
2531 /* The custom draw handler can query the text rectangle,
2532 * so get ready. */
2533 /* should already be known, set to 0 when changed */
2534 if (!item->textWidth)
2535 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2536
2537 cditem = 0;
2538
2539 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2540 {
2541 cditem = TREEVIEW_SendCustomDrawItemNotify
2542 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2543 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2544
2545 if (cditem & CDRF_SKIPDEFAULT)
2546 {
2547 SelectObject(hdc, hOldFont);
2548 return;
2549 }
2550 }
2551
2552 if (cditem & CDRF_NEWFONT)
2553 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2554
2555 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2556
2557 /* Set colors. Custom draw handler can change these so we do this after it. */
2558 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2559 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2560
2561 centery = (item->rect.top + item->rect.bottom) / 2;
2562
2563 /*
2564 * Display the images associated with this item
2565 */
2566 {
2567 INT imageIndex;
2568
2569 /* State images are displayed to the left of the Normal image
2570 * image number is in state; zero should be `display no image'.
2571 */
2572 imageIndex = STATEIMAGEINDEX(item->state);
2573
2574 if (infoPtr->himlState && imageIndex)
2575 {
2576 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2577 item->stateOffset,
2578 centery - infoPtr->stateImageHeight / 2,
2579 ILD_NORMAL);
2580 }
2581
2582 /* Now, draw the normal image; can be either selected,
2583 * non-selected or expanded image.
2584 */
2585
2586 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2587 {
2588 /* The item is currently selected */
2589 imageIndex = item->iSelectedImage;
2590 }
2591 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2592 {
2593 /* The item is currently not selected but expanded */
2594 imageIndex = item->iExpandedImage;
2595 }
2596 else
2597 {
2598 /* The item is not selected and not expanded */
2599 imageIndex = item->iImage;
2600 }
2601
2602 if (infoPtr->himlNormal)
2603 {
2604 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2605
2606 style |= item->state & TVIS_OVERLAYMASK;
2607
2608 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2609 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2610 0, 0, infoPtr->clrBk, item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2611 style);
2612 }
2613 }
2614
2615
2616 /*
2617 * Display the text associated with this item
2618 */
2619
2620 /* Don't paint item's text if it's being edited */
2621 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2622 {
2623 if (item->pszText)
2624 {
2625 RECT rcText;
2626 UINT align;
2627 SIZE sz;
2628
2629 rcText.top = item->rect.top;
2630 rcText.bottom = item->rect.bottom;
2631 rcText.left = item->textOffset;
2632 rcText.right = rcText.left + item->textWidth + 4;
2633
2634 TRACE("drawing text %s at (%s)\n",
2635 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2636
2637 /* Draw it */
2638 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
2639
2640 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2641 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2642 ETO_CLIPPED | ETO_OPAQUE,
2643 &rcText,
2644 item->pszText,
2645 lstrlenW(item->pszText),
2646 NULL);
2647 SetTextAlign(hdc, align);
2648
2649 /* Draw focus box around the selected item */
2650 if ((item == infoPtr->selectedItem) && inFocus)
2651 {
2652 DrawFocusRect(hdc,&rcText);
2653 }
2654 }
2655 }
2656
2657 /* Draw insertion mark if necessary */
2658
2659 if (infoPtr->insertMarkItem)
2660 TRACE("item:%d,mark:%p\n",
2661 TREEVIEW_GetItemIndex(infoPtr, item),
2662 infoPtr->insertMarkItem);
2663
2664 if (item == infoPtr->insertMarkItem)
2665 {
2666 HPEN hNewPen, hOldPen;
2667 int offset;
2668 int left, right;
2669
2670 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2671 hOldPen = SelectObject(hdc, hNewPen);
2672
2673 if (infoPtr->insertBeforeorAfter)
2674 offset = item->rect.bottom - 1;
2675 else
2676 offset = item->rect.top + 1;
2677
2678 left = item->textOffset - 2;
2679 right = item->textOffset + item->textWidth + 2;
2680
2681 MoveToEx(hdc, left, offset - 3, NULL);
2682 LineTo(hdc, left, offset + 4);
2683
2684 MoveToEx(hdc, left, offset, NULL);
2685 LineTo(hdc, right + 1, offset);
2686
2687 MoveToEx(hdc, right, offset + 3, NULL);
2688 LineTo(hdc, right, offset - 4);
2689
2690 SelectObject(hdc, hOldPen);
2691 DeleteObject(hNewPen);
2692 }
2693
2694 if (cditem & CDRF_NOTIFYPOSTPAINT)
2695 {
2696 cditem = TREEVIEW_SendCustomDrawItemNotify
2697 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2698 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2699 }
2700
2701 /* Restore the hdc state */
2702 SetTextColor(hdc, oldTextColor);
2703 SetBkColor(hdc, oldTextBkColor);
2704 SelectObject(hdc, hOldFont);
2705 }
2706
2707 /* Computes treeHeight and treeWidth and updates the scroll bars.
2708 */
2709 static void
2710 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2711 {
2712 TREEVIEW_ITEM *item;
2713 HWND hwnd = infoPtr->hwnd;
2714 BOOL vert = FALSE;
2715 BOOL horz = FALSE;
2716 SCROLLINFO si;
2717 LONG scrollX = infoPtr->scrollX;
2718
2719 infoPtr->treeWidth = 0;
2720 infoPtr->treeHeight = 0;
2721
2722 /* We iterate through all visible items in order to get the tree height
2723 * and width */
2724 item = infoPtr->root->firstChild;
2725
2726 while (item != NULL)
2727 {
2728 if (ISVISIBLE(item))
2729 {
2730 /* actually we draw text at textOffset + 2 */
2731 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2732 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2733
2734 /* This is scroll-adjusted, but we fix this below. */
2735 infoPtr->treeHeight = item->rect.bottom;
2736 }
2737
2738 item = TREEVIEW_GetNextListItem(infoPtr, item);
2739 }
2740
2741 /* Fix the scroll adjusted treeHeight and treeWidth. */
2742 if (infoPtr->root->firstChild)
2743 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2744
2745 infoPtr->treeWidth += infoPtr->scrollX;
2746
2747 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2748
2749 /* Adding one scroll bar may take up enough space that it forces us
2750 * to add the other as well. */
2751 if (infoPtr->treeHeight > infoPtr->clientHeight)
2752 {
2753 vert = TRUE;
2754
2755 if (infoPtr->treeWidth
2756 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2757 horz = TRUE;
2758 }
2759 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2760 horz = TRUE;
2761
2762 if (!vert && horz && infoPtr->treeHeight
2763 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2764 vert = TRUE;
2765
2766 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2767
2768 si.cbSize = sizeof(SCROLLINFO);
2769 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2770 si.nMin = 0;
2771
2772 if (vert)
2773 {
2774 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2775 if ( si.nPage && NULL != infoPtr->firstVisible)
2776 {
2777 si.nPos = infoPtr->firstVisible->visibleOrder;
2778 si.nMax = infoPtr->maxVisibleOrder - 1;
2779
2780 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2781
2782 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2783 ShowScrollBar(hwnd, SB_VERT, TRUE);
2784 infoPtr->uInternalStatus |= TV_VSCROLL;
2785 }
2786 else
2787 {
2788 if (infoPtr->uInternalStatus & TV_VSCROLL)
2789 ShowScrollBar(hwnd, SB_VERT, FALSE);
2790 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2791 }
2792 }
2793 else
2794 {
2795 if (infoPtr->uInternalStatus & TV_VSCROLL)
2796 ShowScrollBar(hwnd, SB_VERT, FALSE);
2797 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2798 }
2799
2800 if (horz)
2801 {
2802 si.nPage = infoPtr->clientWidth;
2803 si.nPos = infoPtr->scrollX;
2804 si.nMax = infoPtr->treeWidth - 1;
2805
2806 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2807 {
2808 si.nPos = si.nMax - max( si.nPage-1, 0 );
2809 scrollX = si.nPos;
2810 }
2811
2812 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2813 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2814 infoPtr->uInternalStatus |= TV_HSCROLL;
2815
2816 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2817 TREEVIEW_HScroll(infoPtr,
2818 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2819 }
2820 else
2821 {
2822 if (infoPtr->uInternalStatus & TV_HSCROLL)
2823 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2824 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2825
2826 scrollX = 0;
2827 if (infoPtr->scrollX != 0)
2828 {
2829 TREEVIEW_HScroll(infoPtr,
2830 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2831 }
2832 }
2833
2834 if (!horz)
2835 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2836 }
2837
2838 static void
2839 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2840 {
2841 HBRUSH hBrush;
2842 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2843
2844 hBrush = CreateSolidBrush(clrBk);
2845 FillRect(hdc, rc, hBrush);
2846 DeleteObject(hBrush);
2847 }
2848
2849 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2850 static LRESULT
2851 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2852 {
2853 RECT rect;
2854
2855 TRACE("%p\n", infoPtr);
2856
2857 GetClientRect(infoPtr->hwnd, &rect);
2858 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2859
2860 return 1;
2861 }
2862
2863 static void
2864 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2865 {
2866 HWND hwnd = infoPtr->hwnd;
2867 RECT rect = *rc;
2868 TREEVIEW_ITEM *item;
2869
2870 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2871 {
2872 TRACE("empty window\n");
2873 return;
2874 }
2875
2876 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2877 hdc, rect);
2878
2879 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2880 {
2881 ReleaseDC(hwnd, hdc);
2882 return;
2883 }
2884
2885 for (item = infoPtr->root->firstChild;
2886 item != NULL;
2887 item = TREEVIEW_GetNextListItem(infoPtr, item))
2888 {
2889 if (ISVISIBLE(item))
2890 {
2891 /* Avoid unneeded calculations */
2892 if (item->rect.top > rect.bottom)
2893 break;
2894 if (item->rect.bottom < rect.top)
2895 continue;
2896
2897 TREEVIEW_DrawItem(infoPtr, hdc, item);
2898 }
2899 }
2900
2901 TREEVIEW_UpdateScrollBars(infoPtr);
2902
2903 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2904 infoPtr->cdmode =
2905 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2906 }
2907
2908 static inline void
2909 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2910 {
2911 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2912 }
2913
2914 static void
2915 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2916 {
2917 if (item)
2918 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2919 else
2920 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2921 }
2922
2923 static LRESULT
2924 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2925 {
2926 HDC hdc;
2927 PAINTSTRUCT ps;
2928 RECT rc;
2929
2930 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2931
2932 if (hdc_ref)
2933 {
2934 hdc = hdc_ref;
2935 GetClientRect(infoPtr->hwnd, &rc);
2936 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2937 }
2938 else
2939 {
2940 hdc = BeginPaint(infoPtr->hwnd, &ps);
2941 rc = ps.rcPaint;
2942 if(ps.fErase)
2943 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2944 }
2945
2946 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2947 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2948
2949 if (!hdc_ref)
2950 EndPaint(infoPtr->hwnd, &ps);
2951
2952 return 0;
2953 }
2954
2955 static LRESULT
2956 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
2957 {
2958 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
2959
2960 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
2961 return 0;
2962
2963 if (options & PRF_ERASEBKGND)
2964 TREEVIEW_EraseBackground(infoPtr, hdc);
2965
2966 if (options & PRF_CLIENT)
2967 {
2968 RECT rc;
2969 GetClientRect(infoPtr->hwnd, &rc);
2970 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2971 }
2972
2973 return 0;
2974 }
2975
2976 /* Sorting **************************************************************/
2977
2978 /***************************************************************************
2979 * Forward the DPA local callback to the treeview owner callback
2980 */
2981 static INT WINAPI
2982 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2983 const TVSORTCB *pCallBackSort)
2984 {
2985 /* Forward the call to the client-defined callback */
2986 return pCallBackSort->lpfnCompare(first->lParam,
2987 second->lParam,
2988 pCallBackSort->lParam);
2989 }
2990
2991 /***************************************************************************
2992 * Treeview native sort routine: sort on item text.
2993 */
2994 static INT WINAPI
2995 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2996 const TREEVIEW_INFO *infoPtr)
2997 {
2998 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2999 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3000
3001 if(first->pszText && second->pszText)
3002 return lstrcmpiW(first->pszText, second->pszText);
3003 else if(first->pszText)
3004 return -1;
3005 else if(second->pszText)
3006 return 1;
3007 else
3008 return 0;
3009 }
3010
3011 /* Returns the number of physical children belonging to item. */
3012 static INT
3013 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3014 {
3015 INT cChildren = 0;
3016 HTREEITEM hti;
3017
3018 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3019 cChildren++;
3020
3021 return cChildren;
3022 }
3023
3024 /* Returns a DPA containing a pointer to each physical child of item in
3025 * sibling order. If item has no children, an empty DPA is returned. */
3026 static HDPA
3027 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3028 {
3029 HTREEITEM child = item->firstChild;
3030
3031 HDPA list = DPA_Create(8);
3032 if (list == 0) return NULL;
3033
3034 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3035 {
3036 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3037 {
3038 DPA_Destroy(list);
3039 return NULL;
3040 }
3041 }
3042
3043 return list;
3044 }
3045
3046 /***************************************************************************
3047 * Setup the treeview structure with regards of the sort method
3048 * and sort the children of the TV item specified in lParam
3049 * fRecurse: currently unused. Should be zero.
3050 * parent: if pSort!=NULL, should equal pSort->hParent.
3051 * otherwise, item which child items are to be sorted.
3052 * pSort: sort method info. if NULL, sort on item text.
3053 * if non-NULL, sort on item's lParam content, and let the
3054 * application decide what that means. See also TVM_SORTCHILDRENCB.
3055 */
3056
3057 static LRESULT
3058 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3059 LPTVSORTCB pSort)
3060 {
3061 INT cChildren;
3062 PFNDPACOMPARE pfnCompare;
3063 LPARAM lpCompare;
3064
3065 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3066 if (parent == TVI_ROOT || parent == NULL)
3067 parent = infoPtr->root;
3068
3069 /* Check for a valid handle to the parent item */
3070 if (!TREEVIEW_ValidItem(infoPtr, parent))
3071 {
3072 ERR("invalid item hParent=%p\n", parent);
3073 return FALSE;
3074 }
3075
3076 if (pSort)
3077 {
3078 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3079 lpCompare = (LPARAM)pSort;
3080 }
3081 else
3082 {
3083 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3084 lpCompare = (LPARAM)infoPtr;
3085 }
3086
3087 cChildren = TREEVIEW_CountChildren(parent);
3088
3089 /* Make sure there is something to sort */
3090 if (cChildren > 1)
3091 {
3092 /* TREEVIEW_ITEM rechaining */
3093 INT count = 0;
3094 HTREEITEM item = 0;
3095 HTREEITEM nextItem = 0;
3096 HTREEITEM prevItem = 0;
3097
3098 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3099
3100 if (sortList == NULL)
3101 return FALSE;
3102
3103 /* let DPA sort the list */
3104 DPA_Sort(sortList, pfnCompare, lpCompare);
3105
3106 /* The order of DPA entries has been changed, so fixup the
3107 * nextSibling and prevSibling pointers. */
3108
3109 item = DPA_GetPtr(sortList, count++);
3110 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3111 {
3112 /* link the two current item together */
3113 item->nextSibling = nextItem;
3114 nextItem->prevSibling = item;
3115
3116 if (prevItem == NULL)
3117 {
3118 /* this is the first item, update the parent */
3119 parent->firstChild = item;
3120 item->prevSibling = NULL;
3121 }
3122 else
3123 {
3124 /* fix the back chaining */
3125 item->prevSibling = prevItem;
3126 }
3127
3128 /* get ready for the next one */
3129 prevItem = item;
3130 item = nextItem;
3131 }
3132
3133 /* the last item is pointed to by item and never has a sibling */
3134 item->nextSibling = NULL;
3135 parent->lastChild = item;
3136
3137 DPA_Destroy(sortList);
3138
3139 TREEVIEW_VerifyTree(infoPtr);
3140
3141 if (parent->state & TVIS_EXPANDED)
3142 {
3143 int visOrder = infoPtr->firstVisible->visibleOrder;
3144
3145 if (parent == infoPtr->root)
3146 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3147 else
3148 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3149
3150 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3151 {
3152 TREEVIEW_ITEM *item;
3153
3154 for (item = infoPtr->root->firstChild; item != NULL;
3155 item = TREEVIEW_GetNextListItem(infoPtr, item))
3156 {
3157 if (item->visibleOrder == visOrder)
3158 break;
3159 }
3160
3161 if (!item) item = parent->firstChild;
3162 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3163 }
3164
3165 TREEVIEW_Invalidate(infoPtr, NULL);
3166 }
3167
3168 return TRUE;
3169 }
3170 return FALSE;
3171 }
3172
3173
3174 /***************************************************************************
3175 * Setup the treeview structure with regards of the sort method
3176 * and sort the children of the TV item specified in lParam
3177 */
3178 static LRESULT
3179 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3180 {
3181 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3182 }
3183
3184
3185 /***************************************************************************
3186 * Sort the children of the TV item specified in lParam.
3187 */
3188 static LRESULT
3189 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3190 {
3191 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3192 }
3193
3194
3195 /* Expansion/Collapse ***************************************************/
3196
3197 static BOOL
3198 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3199 UINT action)
3200 {
3201 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3202 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3203 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3204 0, item);
3205 }
3206
3207 static VOID
3208 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3209 UINT action)
3210 {
3211 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3212 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3213 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3214 0, item);
3215 }
3216
3217
3218 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3219 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3220 static BOOL
3221 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3222 BOOL bRemoveChildren, BOOL bUser)
3223 {
3224 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3225 BOOL bSetSelection, bSetFirstVisible;
3226 RECT scrollRect;
3227 LONG scrollDist = 0;
3228 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3229
3230 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3231
3232 if (!(item->state & TVIS_EXPANDED))
3233 return FALSE;
3234
3235 if (bUser || !(item->state & TVIS_EXPANDEDONCE))
3236 TREEVIEW_SendExpanding(infoPtr, item, action);
3237
3238 if (item->firstChild == NULL)
3239 return FALSE;
3240
3241 item->state &= ~TVIS_EXPANDED;
3242
3243 if (bUser || !(item->state & TVIS_EXPANDEDONCE))
3244 TREEVIEW_SendExpanded(infoPtr, item, action);
3245
3246 bSetSelection = (infoPtr->selectedItem != NULL
3247 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3248
3249 bSetFirstVisible = (infoPtr->firstVisible != NULL
3250 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3251
3252 tmpItem = item;
3253 while (tmpItem)
3254 {
3255 if (tmpItem->nextSibling)
3256 {
3257 nextItem = tmpItem->nextSibling;
3258 break;
3259 }
3260 tmpItem = tmpItem->parent;
3261 }
3262
3263 if (nextItem)
3264 scrollDist = nextItem->rect.top;
3265
3266 if (bRemoveChildren)
3267 {
3268 INT old_cChildren = item->cChildren;
3269 TRACE("TVE_COLLAPSERESET\n");
3270 item->state &= ~TVIS_EXPANDEDONCE;
3271 TREEVIEW_RemoveAllChildren(infoPtr, item);
3272 item->cChildren = old_cChildren;
3273 }
3274
3275 if (item->firstChild)
3276 {
3277 TREEVIEW_ITEM *i, *sibling;
3278
3279 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3280
3281 for (i = item->firstChild; i != sibling;
3282 i = TREEVIEW_GetNextListItem(infoPtr, i))
3283 {
3284 i->visibleOrder = -1;
3285 }
3286 }
3287
3288 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3289
3290 if (nextItem)
3291 scrollDist = -(scrollDist - nextItem->rect.top);
3292
3293 if (bSetSelection)
3294 {
3295 /* Don't call DoSelectItem, it sends notifications. */
3296 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3297 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3298 item->state |= TVIS_SELECTED;
3299 infoPtr->selectedItem = item;
3300 }
3301
3302 TREEVIEW_UpdateScrollBars(infoPtr);
3303
3304 scrollRect.left = 0;
3305 scrollRect.right = infoPtr->clientWidth;
3306 scrollRect.bottom = infoPtr->clientHeight;
3307
3308 if (nextItem)
3309 {
3310 scrollRect.top = nextItem->rect.top;
3311
3312 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3313 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3314 TREEVIEW_Invalidate(infoPtr, item);
3315 } else {
3316 scrollRect.top = item->rect.top;
3317 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3318 }
3319
3320 TREEVIEW_SetFirstVisible(infoPtr,
3321 bSetFirstVisible ? item : infoPtr->firstVisible,
3322 TRUE);
3323
3324 return TRUE;
3325 }
3326
3327 static BOOL
3328 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3329 BOOL partial, BOOL user)
3330 {
3331 LONG scrollDist;
3332 LONG orgNextTop = 0;
3333 RECT scrollRect;
3334 TREEVIEW_ITEM *nextItem, *tmpItem;
3335 BOOL sendsNotifications;
3336
3337 TRACE("(%p, %p, partial=%d, %d\n", infoPtr, item, partial, user);
3338
3339 if (item->state & TVIS_EXPANDED)
3340 return TRUE;
3341
3342 tmpItem = item; nextItem = NULL;
3343 while (tmpItem)
3344 {
3345 if (tmpItem->nextSibling)
3346 {
3347 nextItem = tmpItem->nextSibling;
3348 break;
3349 }
3350 tmpItem = tmpItem->parent;
3351 }
3352
3353 if (nextItem)
3354 orgNextTop = nextItem->rect.top;
3355
3356 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3357
3358 sendsNotifications = user || ((item->cChildren != 0) &&
3359 !(item->state & TVIS_EXPANDEDONCE));
3360 if (sendsNotifications)
3361 {
3362 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3363 {
3364 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3365 return FALSE;
3366 }
3367 }
3368 if (!item->firstChild)
3369 return FALSE;
3370
3371 item->state |= TVIS_EXPANDED;
3372
3373 if (partial)
3374 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3375
3376 if (ISVISIBLE(item))
3377 {
3378 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3379 TREEVIEW_UpdateSubTree(infoPtr, item);
3380 TREEVIEW_UpdateScrollBars(infoPtr);
3381
3382 scrollRect.left = 0;
3383 scrollRect.bottom = infoPtr->treeHeight;
3384 scrollRect.right = infoPtr->clientWidth;
3385 if (nextItem)
3386 {
3387 scrollDist = nextItem->rect.top - orgNextTop;
3388 scrollRect.top = orgNextTop;
3389
3390 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3391 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3392 TREEVIEW_Invalidate (infoPtr, item);
3393 } else {
3394 scrollRect.top = item->rect.top;
3395 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3396 }
3397
3398 /* Scroll up so that as many children as possible are visible.
3399 * This fails when expanding causes an HScroll bar to appear, but we
3400 * don't know that yet, so the last item is obscured. */
3401 if (item->firstChild != NULL)
3402 {
3403 int nChildren = item->lastChild->visibleOrder
3404 - item->firstChild->visibleOrder + 1;
3405
3406 int visible_pos = item->visibleOrder
3407 - infoPtr->firstVisible->visibleOrder;
3408
3409 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3410
3411 if (visible_pos > 0 && nChildren > rows_below)
3412 {
3413 int scroll = nChildren - rows_below;
3414
3415 if (scroll > visible_pos)
3416 scroll = visible_pos;
3417
3418 if (scroll > 0)
3419 {
3420 TREEVIEW_ITEM *newFirstVisible
3421 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3422 scroll);
3423
3424
3425 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3426 }
3427 }
3428 }
3429 }
3430
3431 if (sendsNotifications) {
3432 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3433 item->state |= TVIS_EXPANDEDONCE;
3434 }
3435
3436 return TRUE;
3437 }
3438
3439 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3440 to mouse messages and TVM_SELECTITEM.
3441
3442 selection - previously selected item, used to collapse a part of a tree
3443 item - new selected item
3444 */
3445 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3446 HTREEITEM selection, HTREEITEM item)
3447 {
3448 TREEVIEW_ITEM *SelItem;
3449
3450 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3451
3452 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3453
3454 /*
3455 * Close the previous selection all the way to the root
3456 * as long as the new selection is not a child
3457 */
3458 if(selection && (selection != item))
3459 {
3460 BOOL closeit = TRUE;
3461 SelItem = item;
3462
3463 /* determine if the hitItem is a child of the currently selected item */
3464 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3465 (SelItem->parent != infoPtr->root))
3466 {
3467 closeit = (SelItem != selection);
3468 SelItem = SelItem->parent;
3469 }
3470
3471 if(closeit)
3472 {
3473 if(TREEVIEW_ValidItem(infoPtr, selection))
3474 SelItem = selection;
3475
3476 while(SelItem && (SelItem != item) && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3477 SelItem->parent != infoPtr->root)
3478 {
3479 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
3480 SelItem = SelItem->parent;
3481 }
3482 }
3483 }
3484
3485 /*
3486 * Expand the current item
3487 */
3488 TREEVIEW_Expand(infoPtr, item, FALSE, FALSE);
3489 }
3490
3491 static BOOL
3492 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3493 {
3494 TRACE("item=%p, user=%d\n", item, user);
3495
3496 if (item->state & TVIS_EXPANDED)
3497 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3498 else
3499 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3500 }
3501
3502 static VOID
3503 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3504 {
3505 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3506
3507 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3508 {
3509 if (TREEVIEW_HasChildren(infoPtr, item))
3510 TREEVIEW_ExpandAll(infoPtr, item);
3511 }
3512 }
3513
3514 /* Note:If the specified item is the child of a collapsed parent item,
3515 the parent's list of child items is (recursively) expanded to reveal the
3516 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3517 know if it also applies here.
3518 */
3519
3520 static LRESULT
3521 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3522 {
3523 if (!TREEVIEW_ValidItem(infoPtr, item))
3524 return 0;
3525
3526 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3527 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3528 flag, item->state);
3529
3530 switch (flag & TVE_TOGGLE)
3531 {
3532 case TVE_COLLAPSE:
3533 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3534 FALSE);
3535
3536 case TVE_EXPAND:
3537 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3538 FALSE);
3539
3540 case TVE_TOGGLE:
3541 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3542
3543 default:
3544 return 0;
3545 }
3546 }
3547
3548 /* Hit-Testing **********************************************************/
3549
3550 static TREEVIEW_ITEM *
3551 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3552 {
3553 TREEVIEW_ITEM *item;
3554 LONG row;
3555
3556 if (!infoPtr->firstVisible)
3557 return NULL;
3558
3559 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3560
3561 for (item = infoPtr->firstVisible; item != NULL;
3562 item = TREEVIEW_GetNextListItem(infoPtr, item))
3563 {
3564 if (row >= item->visibleOrder
3565 && row < item->visibleOrder + item->iIntegral)
3566 break;
3567 }
3568
3569 return item;
3570 }
3571
3572 static LRESULT
3573 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3574 {
3575 TREEVIEW_ITEM *item;
3576 RECT rect;
3577 UINT status;
3578 LONG x, y;
3579
3580 lpht->hItem = 0;
3581 GetClientRect(infoPtr->hwnd, &rect);
3582 status = 0;
3583 x = lpht->pt.x;
3584 y = lpht->pt.y;
3585
3586 if (x < rect.left)
3587 {
3588 status |= TVHT_TOLEFT;
3589 }
3590 else if (x > rect.right)
3591 {
3592 status |= TVHT_TORIGHT;
3593 }
3594
3595 if (y < rect.top)
3596 {
3597 status |= TVHT_ABOVE;
3598 }
3599 else if (y > rect.bottom)
3600 {
3601 status |= TVHT_BELOW;
3602 }
3603
3604 if (status)
3605 {
3606 lpht->flags = status;
3607 return 0;
3608 }
3609
3610 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3611 if (!item)
3612 {
3613 lpht->flags = TVHT_NOWHERE;
3614 return 0;
3615 }
3616
3617 if (x >= item->textOffset + item->textWidth)
3618 {
3619 lpht->flags = TVHT_ONITEMRIGHT;
3620 }
3621 else if (x >= item->textOffset)
3622 {
3623 lpht->flags = TVHT_ONITEMLABEL;
3624 }
3625 else if (x >= item->imageOffset)
3626 {
3627 lpht->flags = TVHT_ONITEMICON;
3628 }
3629 else if (x >= item->stateOffset)
3630 {
3631 lpht->flags = TVHT_ONITEMSTATEICON;
3632 }
3633 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3634 {
3635 lpht->flags = TVHT_ONITEMBUTTON;
3636 }
3637 else
3638 {
3639 lpht->flags = TVHT_ONITEMINDENT;
3640 }
3641
3642 lpht->hItem = item;
3643 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3644
3645 return (LRESULT)item;
3646 }
3647
3648 /* Item Label Editing ***************************************************/
3649
3650 static LRESULT
3651 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3652 {
3653 return (LRESULT)infoPtr->hwndEdit;
3654 }
3655
3656 static LRESULT CALLBACK
3657 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3658 {
3659 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3660 BOOL bCancel = FALSE;
3661 LRESULT rc;
3662
3663 switch (uMsg)
3664 {
3665 case WM_PAINT:
3666 TRACE("WM_PAINT start\n");
3667 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3668 lParam);
3669 TRACE("WM_PAINT done\n");
3670 return rc;
3671
3672 case WM_KILLFOCUS:
3673 if (infoPtr->bIgnoreEditKillFocus)
3674 return TRUE;
3675 break;
3676
3677 case WM_DESTROY:
3678 {
3679 WNDPROC editProc = infoPtr->wpEditOrig;
3680 infoPtr->wpEditOrig = 0;
3681 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3682 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3683 }
3684
3685 case WM_GETDLGCODE:
3686 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3687
3688 case WM_KEYDOWN:
3689 if (wParam == VK_ESCAPE)
3690 {
3691 bCancel = TRUE;
3692 break;
3693 }
3694 else if (wParam == VK_RETURN)
3695 {
3696 break;
3697 }
3698
3699 /* fall through */
3700 default:
3701 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3702 }
3703
3704 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3705 /* eg. Using a messagebox */
3706
3707 infoPtr->bIgnoreEditKillFocus = TRUE;
3708 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3709 infoPtr->bIgnoreEditKillFocus = FALSE;
3710
3711 return 0;
3712 }
3713
3714
3715 /* should handle edit control messages here */
3716
3717 static LRESULT
3718 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3719 {
3720 TRACE("code=%x, id=%x, handle=%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3721
3722 switch (HIWORD(wParam))
3723 {
3724 case EN_UPDATE:
3725 {
3726 /*
3727 * Adjust the edit window size
3728 */
3729 WCHAR buffer[1024];
3730 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3731 HDC hdc = GetDC(infoPtr->hwndEdit);
3732 SIZE sz;
3733 HFONT hFont, hOldFont = 0;
3734
3735 TRACE("edit=%p\n", infoPtr->hwndEdit);
3736
3737 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3738
3739 infoPtr->bLabelChanged = TRUE;
3740
3741 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3742
3743 /* Select font to get the right dimension of the string */
3744 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3745
3746 if (hFont != 0)
3747 {
3748 hOldFont = SelectObject(hdc, hFont);
3749 }
3750
3751 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3752 {
3753 TEXTMETRICW textMetric;
3754
3755 /* Add Extra spacing for the next character */
3756 GetTextMetricsW(hdc, &textMetric);
3757 sz.cx += (textMetric.tmMaxCharWidth * 2);
3758
3759 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3760 sz.cx = min(sz.cx,
3761 infoPtr->clientWidth - editItem->textOffset + 2);
3762
3763 SetWindowPos(infoPtr->hwndEdit,
3764 HWND_TOP,
3765 0,
3766 0,
3767 sz.cx,
3768 editItem->rect.bottom - editItem->rect.top + 3,
3769 SWP_NOMOVE | SWP_DRAWFRAME);
3770 }
3771
3772 if (hFont != 0)
3773 {
3774 SelectObject(hdc, hOldFont);
3775 }
3776
3777 ReleaseDC(infoPtr->hwnd, hdc);
3778 break;
3779 }
3780 case EN_KILLFOCUS:
3781 /* apparently we should respect passed handle value */
3782 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3783
3784 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3785 break;
3786
3787 default:
3788 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3789 }
3790
3791 return 0;
3792 }
3793
3794 static HWND
3795 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3796 {
3797 HWND hwnd = infoPtr->hwnd;
3798 HWND hwndEdit;
3799 SIZE sz;
3800 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3801 HDC hdc;
3802 HFONT hOldFont=0;
3803 TEXTMETRICW textMetric;
3804
3805 TRACE("%p %p\n", hwnd, hItem);
3806 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3807 return NULL;
3808
3809 if (infoPtr->hwndEdit)
3810 return infoPtr->hwndEdit;
3811
3812 infoPtr->bLabelChanged = FALSE;
3813
3814 /* make edit item visible */
3815 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3816
3817 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3818
3819 hdc = GetDC(hwnd);
3820 /* Select the font to get appropriate metric dimensions */
3821 if (infoPtr->hFont != 0)
3822 {
3823 hOldFont = SelectObject(hdc, infoPtr->hFont);
3824 }
3825
3826 /* Get string length in pixels */
3827 if (hItem->pszText)
3828 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3829 &sz);
3830 else
3831 GetTextExtentPoint32A(hdc, "", 0, &sz);
3832
3833 /* Add Extra spacing for the next character */
3834 GetTextMetricsW(hdc, &textMetric);
3835 sz.cx += (textMetric.tmMaxCharWidth * 2);
3836
3837 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3838 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3839
3840 if (infoPtr->hFont != 0)
3841 {
3842 SelectObject(hdc, hOldFont);
3843 }
3844
3845 ReleaseDC(hwnd, hdc);
3846
3847 infoPtr->editItem = hItem;
3848
3849 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3850 WC_EDITW,
3851 0,
3852 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3853 WS_CLIPSIBLINGS | ES_WANTRETURN |
3854 ES_LEFT, hItem->textOffset - 2,
3855 hItem->rect.top - 1, sz.cx + 3,
3856 hItem->rect.bottom -
3857 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3858 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3859
3860 infoPtr->hwndEdit = hwndEdit;
3861
3862 /* Get a 2D border. */
3863 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3864 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3865 SetWindowLongW(hwndEdit, GWL_STYLE,
3866 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3867
3868 SendMessageW(hwndEdit, WM_SETFONT,
3869 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3870
3871 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3872 (DWORD_PTR)
3873 TREEVIEW_Edit_SubclassProc);
3874
3875 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3876 {
3877 DestroyWindow(hwndEdit);
3878 infoPtr->hwndEdit = 0;
3879 infoPtr->editItem = NULL;
3880 return NULL;
3881 }
3882
3883 if (hItem->pszText)
3884 SetWindowTextW(hwndEdit, hItem->pszText);
3885
3886 SetFocus(hwndEdit);
3887 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3888 ShowWindow(hwndEdit, SW_SHOW);
3889
3890 return hwndEdit;
3891 }
3892
3893
3894 static LRESULT
3895 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3896 {
3897 HWND hwnd = infoPtr->hwnd;
3898 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3899 NMTVDISPINFOW tvdi;
3900 BOOL bCommit;
3901 WCHAR tmpText[1024] = { '\0' };
3902 WCHAR *newText = tmpText;
3903 int iLength = 0;
3904
3905 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3906
3907 tvdi.hdr.hwndFrom = hwnd;
3908 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3909 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3910 tvdi.item.mask = 0;
3911 tvdi.item.hItem = editedItem;
3912 tvdi.item.state = editedItem->state;
3913 tvdi.item.lParam = editedItem->lParam;
3914
3915 if (!bCancel)
3916 {
3917 if (!infoPtr->bNtfUnicode)
3918 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3919 else
3920 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3921
3922 if (iLength >= 1023)
3923 {
3924 ERR("Insufficient space to retrieve new item label\n");
3925 }
3926
3927 tvdi.item.mask = TVIF_TEXT;
3928 tvdi.item.pszText = tmpText;
3929 tvdi.item.cchTextMax = iLength + 1;
3930 }
3931 else
3932 {
3933 tvdi.item.pszText = NULL;
3934 tvdi.item.cchTextMax = 0;
3935 }
3936
3937 bCommit = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
3938
3939 if (!bCancel && bCommit) /* Apply the changes */
3940 {
3941 if (!infoPtr->bNtfUnicode)
3942 {
3943 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3944 newText = Alloc(len * sizeof(WCHAR));
3945 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3946 iLength = len - 1;
3947 }
3948
3949 if (strcmpW(newText, editedItem->pszText) != 0)
3950 {
3951 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
3952 if (ptr == NULL)
3953 {
3954 ERR("OutOfMemory, cannot allocate space for label\n");
3955 if(newText != tmpText) Free(newText);
3956 DestroyWindow(infoPtr->hwndEdit);
3957 infoPtr->hwndEdit = 0;
3958 infoPtr->editItem = NULL;
3959 return FALSE;
3960 }
3961 else
3962 {
3963 editedItem->pszText = ptr;
3964 editedItem->cchTextMax = iLength + 1;
3965 strcpyW(editedItem->pszText, newText);
3966 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
3967 }
3968 }
3969 if(newText != tmpText) Free(newText);
3970 }
3971
3972 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3973 DestroyWindow(infoPtr->hwndEdit);
3974 infoPtr->hwndEdit = 0;
3975 infoPtr->editItem = NULL;
3976 return TRUE;
3977 }
3978
3979 static LRESULT
3980 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3981 {
3982 if (wParam != TV_EDIT_TIMER)
3983 {
3984 ERR("got unknown timer\n");
3985 return 1;
3986 }
3987
3988 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3989 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3990
3991 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3992
3993 return 0;
3994 }
3995
3996
3997 /* Mouse Tracking/Drag **************************************************/
3998
3999 /***************************************************************************
4000 * This is quite unusual piece of code, but that's how it's implemented in
4001 * Windows.
4002 */
4003 static LRESULT
4004 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4005 {
4006 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4007 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4008 RECT r;
4009 MSG msg;
4010
4011 r.top = pt.y - cyDrag;
4012 r.left = pt.x - cxDrag;
4013 r.bottom = pt.y + cyDrag;
4014 r.right = pt.x + cxDrag;
4015
4016 SetCapture(infoPtr->hwnd);
4017
4018 while (1)
4019 {
4020 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4021 {
4022 if (msg.message == WM_MOUSEMOVE)
4023 {
4024 pt.x = (short)LOWORD(msg.lParam);
4025 pt.y = (short)HIWORD(msg.lParam);
4026 if (PtInRect(&r, pt))
4027 continue;
4028 else
4029 {
4030 ReleaseCapture();
4031 return 1;
4032 }
4033 }
4034 else if (msg.message >= WM_LBUTTONDOWN &&
4035 msg.message <= WM_RBUTTONDBLCLK)
4036 {
4037 if (msg.message == WM_RBUTTONUP)
4038 TREEVIEW_RButtonUp(infoPtr, &pt);
4039 break;
4040 }
4041
4042 DispatchMessageW(&msg);
4043 }
4044
4045 if (GetCapture() != infoPtr->hwnd)
4046 return 0;
4047 }
4048
4049 ReleaseCapture();
4050 return 0;
4051 }
4052
4053
4054 static LRESULT
4055 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4056 {
4057 TREEVIEW_ITEM *item;
4058 TVHITTESTINFO hit;
4059
4060 TRACE("\n");
4061 SetFocus(infoPtr->hwnd);
4062
4063 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4064 {
4065 /* If there is pending 'edit label' event - kill it now */
4066 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4067 }
4068
4069 hit.pt.x = (short)LOWORD(lParam);
4070 hit.pt.y = (short)HIWORD(lParam);
4071
4072 item = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4073 if (!item)
4074 return 0;
4075 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4076
4077 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4078 { /* FIXME! */
4079 switch (hit.flags)
4080 {
4081 case TVHT_ONITEMRIGHT:
4082 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4083 break;
4084
4085 case TVHT_ONITEMINDENT:
4086 if (!(infoPtr->dwStyle & TVS_HASLINES))
4087 {
4088 break;
4089 }
4090 else
4091 {
4092 int level = hit.pt.x / infoPtr->uIndent;
4093 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4094
4095 while (item->iLevel > level)
4096 {
4097 item = item->parent;
4098 }
4099
4100 /* fall through */
4101 }
4102
4103 case TVHT_ONITEMLABEL:
4104 case TVHT_ONITEMICON:
4105 case TVHT_ONITEMBUTTON:
4106 TREEVIEW_Toggle(infoPtr, item, TRUE);
4107 break;
4108
4109 case TVHT_ONITEMSTATEICON:
4110 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4111 TREEVIEW_ToggleItemState(infoPtr, item);
4112 else
4113 TREEVIEW_Toggle(infoPtr, item, TRUE);
4114 break;
4115 }
4116 }
4117 return TRUE;
4118 }
4119
4120
4121 static LRESULT
4122 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4123 {
4124 HWND hwnd = infoPtr->hwnd;
4125 TVHITTESTINFO ht;
4126 BOOL bTrack, bDoLabelEdit;
4127
4128 /* If Edit control is active - kill it and return.
4129 * The best way to do it is to set focus to itself.
4130 * Edit control subclassed procedure will automatically call
4131 * EndEditLabelNow.
4132 */
4133 if (infoPtr->hwndEdit)
4134 {
4135 SetFocus(hwnd);
4136 return 0;
4137 }
4138
4139 ht.pt.x = (short)LOWORD(lParam);
4140 ht.pt.y = (short)HIWORD(lParam);
4141
4142 TREEVIEW_HitTest(infoPtr, &ht);
4143 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4144
4145 /* update focusedItem and redraw both items */
4146 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4147 {
4148 infoPtr->focusedItem = ht.hItem;
4149 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4150 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4151 }
4152
4153 bTrack = (ht.flags & TVHT_ONITEM)
4154 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4155
4156 /*
4157 * If the style allows editing and the node is already selected
4158 * and the click occurred on the item label...
4159 */
4160 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4161 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4162
4163 /* Send NM_CLICK right away */
4164 if (!bTrack)
4165 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4166 goto setfocus;
4167
4168 if (ht.flags & TVHT_ONITEMBUTTON)
4169 {
4170 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4171 goto setfocus;
4172 }
4173 else if (bTrack)
4174 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4175 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4176 {
4177 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4178 infoPtr->dropItem = ht.hItem;
4179
4180 /* clean up focusedItem as we dragged and won't select this item */
4181 if(infoPtr->focusedItem)
4182 {
4183 /* refresh the item that was focused */
4184 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4185 infoPtr->focusedItem = NULL;
4186
4187 /* refresh the selected item to return the filled background */
4188 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4189 }
4190
4191 return 0;
4192 }
4193 }
4194
4195 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4196 goto setfocus;
4197
4198 if (bDoLabelEdit)
4199 {
4200 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4201 KillTimer(hwnd, TV_EDIT_TIMER);
4202
4203 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4204 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4205 }
4206 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4207 {
4208 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4209
4210 /* Select the current item */
4211 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4212 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4213 }
4214 else if (ht.flags & TVHT_ONITEMSTATEICON)
4215 {
4216 /* TVS_CHECKBOXES requires us to toggle the current state */
4217 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4218 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4219 }
4220
4221 setfocus:
4222 SetFocus(hwnd);
4223 return 0;
4224 }
4225
4226
4227 static LRESULT
4228 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4229 {
4230 TVHITTESTINFO ht;
4231
4232 if (infoPtr->hwndEdit)
4233 {
4234 SetFocus(infoPtr->hwnd);
4235 return 0;
4236 }
4237
4238 ht.pt.x = (short)LOWORD(lParam);
4239 ht.pt.y = (short)HIWORD(lParam);
4240
4241 TREEVIEW_HitTest(infoPtr, &ht);
4242
4243 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4244 {
4245 if (ht.hItem)
4246 {
4247 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4248 infoPtr->dropItem = ht.hItem;
4249 }
4250 }
4251 else
4252 {
4253 SetFocus(infoPtr->hwnd);
4254 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4255 }
4256
4257 return 0;
4258 }
4259
4260 static LRESULT
4261 TREEVIEW_RButtonUp(const TREEVIEW_INFO *infoPtr, const POINT *pPt)
4262 {
4263 TVHITTESTINFO ht;
4264
4265 ht.pt = *pPt;
4266
4267 TREEVIEW_HitTest(infoPtr, &ht);
4268
4269 if (ht.hItem)
4270 {
4271 /* Change to screen coordinate for WM_CONTEXTMENU */
4272 ClientToScreen(infoPtr->hwnd, &ht.pt);
4273
4274 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4275 SendMessageW(infoPtr->hwnd, WM_CONTEXTMENU,
4276 (WPARAM)infoPtr->hwnd, MAKELPARAM(ht.pt.x, ht.pt.y));
4277 }
4278 return 0;
4279 }
4280
4281
4282 static LRESULT
4283 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4284 {
4285 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4286 INT cx, cy;
4287 HDC hdc, htopdc;
4288 HWND hwtop;
4289 HBITMAP hbmp, hOldbmp;
4290 SIZE size;
4291 RECT rc;
4292 HFONT hOldFont;
4293
4294 TRACE("\n");
4295
4296 if (!(infoPtr->himlNormal))
4297 return 0;
4298
4299 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4300 return 0;
4301
4302 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4303
4304 hwtop = GetDesktopWindow();
4305 htopdc = GetDC(hwtop);
4306 hdc = CreateCompatibleDC(htopdc);
4307
4308 hOldFont = SelectObject(hdc, infoPtr->hFont);
4309
4310 if (dragItem->pszText)
4311 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4312 &size);
4313 else
4314 GetTextExtentPoint32A(hdc, "", 0, &size);
4315
4316 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4317 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4318 hOldbmp = SelectObject(hdc, hbmp);
4319
4320 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4321 size.cx += cx;
4322 if (cy > size.cy)
4323 size.cy = cy;
4324
4325 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4326 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4327 ILD_NORMAL);
4328
4329 /*
4330 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4331 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4332 */
4333
4334 /* draw item text */
4335
4336 SetRect(&rc, cx, 0, size.cx, size.cy);
4337
4338 if (dragItem->pszText)
4339 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4340 DT_LEFT);
4341
4342 SelectObject(hdc, hOldFont);
4343 SelectObject(hdc, hOldbmp);
4344
4345 ImageList_Add(infoPtr->dragList, hbmp, 0);
4346
4347 DeleteDC(hdc);
4348 DeleteObject(hbmp);
4349 ReleaseDC(hwtop, htopdc);
4350
4351 return (LRESULT)infoPtr->dragList;
4352 }
4353
4354 /* Selection ************************************************************/
4355
4356 static LRESULT
4357 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4358 INT cause)
4359 {
4360 TREEVIEW_ITEM *prevSelect;
4361
4362 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4363
4364 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4365 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4366 newSelect ? newSelect->state : 0);
4367
4368 /* reset and redraw focusedItem if focusedItem was set so we don't */
4369 /* have to worry about the previously focused item when we set a new one */
4370 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4371 infoPtr->focusedItem = NULL;
4372
4373 switch (action)
4374 {
4375 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4376 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4377 /* Fall through */
4378 case TVGN_CARET:
4379 prevSelect = infoPtr->selectedItem;
4380
4381 if (prevSelect == newSelect) {
4382 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4383 break;
4384 }
4385
4386 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4387 TVN_SELCHANGINGW,
4388 cause,
4389 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4390 prevSelect,
4391 newSelect))
4392 return FALSE;
4393
4394 if (prevSelect)
4395 prevSelect->state &= ~TVIS_SELECTED;
4396 if (newSelect)
4397 newSelect->state |= TVIS_SELECTED;
4398
4399 infoPtr->selectedItem = newSelect;
4400
4401 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4402
4403 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4404 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4405
4406 TREEVIEW_SendTreeviewNotify(infoPtr,
4407 TVN_SELCHANGEDW,
4408 cause,
4409 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4410 prevSelect,
4411 newSelect);
4412 break;
4413
4414 case TVGN_DROPHILITE:
4415 prevSelect = infoPtr->dropItem;
4416
4417 if (prevSelect)
4418 prevSelect->state &= ~TVIS_DROPHILITED;
4419
4420 infoPtr->dropItem = newSelect;
4421
4422 if (newSelect)
4423 newSelect->state |= TVIS_DROPHILITED;
4424
4425 TREEVIEW_Invalidate(infoPtr, prevSelect);
4426 TREEVIEW_Invalidate(infoPtr, newSelect);
4427 break;
4428
4429 case TVGN_FIRSTVISIBLE:
4430 if (newSelect != NULL)
4431 {
4432 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4433 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4434 TREEVIEW_Invalidate(infoPtr, NULL);
4435 }
4436 break;
4437 }
4438
4439 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4440 return TRUE;
4441 }
4442
4443 /* FIXME: handle NM_KILLFOCUS etc */
4444 static LRESULT
4445 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4446 {
4447 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4448
4449 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4450 return FALSE;
4451
4452 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4453
4454 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4455 return FALSE;
4456
4457 TREEVIEW_SingleExpand(infoPtr, selection, item);
4458
4459 return TRUE;
4460 }
4461
4462 /*************************************************************************
4463 * TREEVIEW_ProcessLetterKeys
4464 *
4465 * Processes keyboard messages generated by pressing the letter keys
4466 * on the keyboard.
4467 * What this does is perform a case insensitive search from the
4468 * current position with the following quirks:
4469 * - If two chars or more are pressed in quick succession we search
4470 * for the corresponding string (e.g. 'abc').
4471 * - If there is a delay we wipe away the current search string and
4472 * restart with just that char.
4473 * - If the user keeps pressing the same character, whether slowly or
4474 * fast, so that the search string is entirely composed of this
4475 * character ('aaaaa' for instance), then we search for first item
4476 * that starting with that character.
4477 * - If the user types the above character in quick succession, then
4478 * we must also search for the corresponding string ('aaaaa'), and
4479 * go to that string if there is a match.
4480 *
4481 * RETURNS
4482 *
4483 * Zero.
4484 *
4485 * BUGS
4486 *
4487 * - The current implementation has a list of characters it will
4488 * accept and it ignores everything else. In particular it will
4489 * ignore accentuated characters which seems to match what
4490 * Windows does. But I'm not sure it makes sense to follow
4491 * Windows there.
4492 * - We don't sound a beep when the search fails.
4493 * - The search should start from the focused item, not from the selected
4494 * item. One reason for this is to allow for multiple selections in trees.
4495 * But currently infoPtr->focusedItem does not seem very usable.
4496 *
4497 * SEE ALSO
4498 *
4499 * TREEVIEW_ProcessLetterKeys
4500 */
4501 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4502 {
4503 HTREEITEM nItem;
4504 HTREEITEM endidx,idx;
4505 TVITEMEXW item;
4506 WCHAR buffer[MAX_PATH];
4507 DWORD timestamp,elapsed;
4508
4509 /* simple parameter checking */
4510 if (!charCode || !keyData) return 0;
4511
4512 /* only allow the valid WM_CHARs through */
4513 if (!isalnum(charCode) &&
4514 charCode != '.' && charCode != '`' && charCode != '!' &&
4515 charCode != '@' && charCode != '#' && charCode != '$' &&
4516 charCode != '%' && charCode != '^' && charCode != '&' &&
4517 charCode != '*' && charCode != '(' && charCode != ')' &&
4518 charCode != '-' && charCode != '_' && charCode != '+' &&
4519 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4520 charCode != '}' && charCode != '[' && charCode != '{' &&
4521 charCode != '/' && charCode != '?' && charCode != '>' &&
4522 charCode != '<' && charCode != ',' && charCode != '~')
4523 return 0;
4524
4525 /* compute how much time elapsed since last keypress */
4526 timestamp = GetTickCount();
4527 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4528 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4529 } else {
4530 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4531 }
4532
4533 /* update the search parameters */
4534 infoPtr->lastKeyPressTimestamp=timestamp;
4535 if (elapsed < KEY_DELAY) {
4536 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4537 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4538 }
4539 if (infoPtr->charCode != charCode) {
4540 infoPtr->charCode=charCode=0;
4541 }
4542 } else {
4543 infoPtr->charCode=charCode;
4544 infoPtr->szSearchParam[0]=charCode;
4545 infoPtr->nSearchParamLength=1;
4546 /* Redundant with the 1 char string */
4547 charCode=0;
4548 }
4549
4550 /* and search from the current position */
4551 nItem=NULL;
4552 if (infoPtr->selectedItem != NULL) {
4553 endidx=infoPtr->selectedItem;
4554 /* if looking for single character match,
4555 * then we must always move forward
4556 */
4557 if (infoPtr->nSearchParamLength == 1)
4558 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4559 else
4560 idx=endidx;
4561 } else {
4562 endidx=NULL;
4563 idx=infoPtr->root->firstChild;
4564 }
4565 do {
4566 /* At the end point, sort out wrapping */
4567 if (idx == NULL) {
4568
4569 /* If endidx is null, stop at the last item (ie top to bottom) */
4570 if (endidx == NULL)
4571 break;
4572
4573 /* Otherwise, start again at the very beginning */
4574 idx=infoPtr->root->firstChild;
4575
4576 /* But if we are stopping on the first child, end now! */
4577 if (idx == endidx) break;
4578 }
4579
4580 /* get item */
4581 ZeroMemory(&item, sizeof(item));
4582 item.mask = TVIF_TEXT;
4583 item.hItem = idx;
4584 item.pszText = buffer;
4585 item.cchTextMax = sizeof(buffer);
4586 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4587
4588 /* check for a match */
4589 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4590 nItem=idx;
4591 break;
4592 } else if ( (charCode != 0) && (nItem == NULL) &&
4593 (nItem != infoPtr->selectedItem) &&
4594 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4595 /* This would work but we must keep looking for a longer match */
4596 nItem=idx;
4597 }
4598 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4599 } while (idx != endidx);
4600
4601 if (nItem != NULL) {
4602 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4603 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4604 }
4605 }
4606
4607 return 0;
4608 }
4609
4610 /* Scrolling ************************************************************/
4611
4612 static LRESULT
4613 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4614 {
4615 int viscount;
4616 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4617 HTREEITEM newFirstVisible = NULL;
4618 int visible_pos = -1;
4619
4620 if (!TREEVIEW_ValidItem(infoPtr, item))
4621 return FALSE;
4622
4623 if (!ISVISIBLE(item))
4624 {
4625 /* Expand parents as necessary. */
4626 HTREEITEM parent;
4627
4628 /* see if we are trying to ensure that root is visible */
4629 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4630 parent = item->parent;
4631 else
4632 parent = item; /* this item is the topmost item */
4633
4634 while (parent != infoPtr->root)
4635 {
4636 if (!(parent->state & TVIS_EXPANDED))
4637 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4638
4639 parent = parent->parent;
4640 }
4641 }
4642
4643 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4644
4645 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4646 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4647
4648 if (hasFirstVisible)
4649 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4650
4651 if (visible_pos < 0)
4652 {
4653 /* item is before the start of the list: put it at the top. */
4654 newFirstVisible = item;
4655 }
4656 else if (visible_pos >= viscount
4657 /* Sometimes, before we are displayed, GVC is 0, causing us to
4658 * spuriously scroll up. */
4659 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4660 {
4661 /* item is past the end of the list. */
4662 int scroll = visible_pos - viscount;
4663
4664 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4665 scroll + 1);
4666 }
4667
4668 if (bHScroll)
4669 {
4670 /* Scroll window so item's text is visible as much as possible */
4671 /* Calculation of amount of extra space is taken from EditLabel code */
4672 INT pos, x;
4673 TEXTMETRICW textMetric;
4674 HDC hdc = GetWindowDC(infoPtr->hwnd);
4675
4676 x = item->textWidth;
4677
4678 GetTextMetricsW(hdc, &textMetric);
4679 ReleaseDC(infoPtr->hwnd, hdc);
4680
4681 x += (textMetric.tmMaxCharWidth * 2);
4682 x = max(x, textMetric.tmMaxCharWidth * 3);
4683
4684 if (item->textOffset < 0)
4685 pos = item->textOffset;
4686 else if (item->textOffset + x > infoPtr->clientWidth)
4687 {
4688 if (x > infoPtr->clientWidth)
4689 pos = item->textOffset;
4690 else
4691 pos = item->textOffset + x - infoPtr->clientWidth;
4692 }
4693 else
4694 pos = 0;
4695
4696 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4697 }
4698
4699 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4700 {
4701 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4702
4703 return TRUE;
4704 }
4705
4706 return FALSE;
4707 }
4708
4709 static VOID
4710 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4711 TREEVIEW_ITEM *newFirstVisible,
4712 BOOL bUpdateScrollPos)
4713 {
4714 int gap_size;
4715
4716 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4717
4718 if (newFirstVisible != NULL)
4719 {
4720 /* Prevent an empty gap from appearing at the bottom... */
4721 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4722 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4723
4724 if (gap_size > 0)
4725 {
4726 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4727 -gap_size);
4728
4729 /* ... unless we just don't have enough items. */
4730 if (newFirstVisible == NULL)
4731 newFirstVisible = infoPtr->root->firstChild;
4732 }
4733 }
4734
4735 if (infoPtr->firstVisible != newFirstVisible)
4736 {
4737 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4738 {
4739 infoPtr->firstVisible = newFirstVisible;
4740 TREEVIEW_Invalidate(infoPtr, NULL);
4741 }
4742 else
4743 {
4744 TREEVIEW_ITEM *item;
4745 int scroll = infoPtr->uItemHeight *
4746 (infoPtr->firstVisible->visibleOrder
4747 - newFirstVisible->visibleOrder);
4748
4749 infoPtr->firstVisible = newFirstVisible;
4750
4751 for (item = infoPtr->root->firstChild; item != NULL;
4752 item = TREEVIEW_GetNextListItem(infoPtr, item))
4753 {
4754 item->rect.top += scroll;
4755 item->rect.bottom += scroll;
4756 }
4757
4758 if (bUpdateScrollPos)
4759 SetScrollPos(infoPtr->hwnd, SB_VERT,
4760 newFirstVisible->visibleOrder, TRUE);
4761
4762 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4763 }
4764 }
4765 }
4766
4767 /************************************************************************
4768 * VScroll is always in units of visible items. i.e. we always have a
4769 * visible item aligned to the top of the control. (Unless we have no
4770 * items at all.)
4771 */
4772 static LRESULT
4773 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4774 {
4775 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4776 TREEVIEW_ITEM *newFirstVisible = NULL;
4777
4778 int nScrollCode = LOWORD(wParam);
4779
4780 TRACE("wp %lx\n", wParam);
4781
4782 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4783 return 0;
4784
4785 if (!oldFirstVisible)
4786 {
4787 assert(infoPtr->root->firstChild == NULL);
4788 return 0;
4789 }
4790
4791 switch (nScrollCode)
4792 {
4793 case SB_TOP:
4794 newFirstVisible = infoPtr->root->firstChild;
4795 break;
4796
4797 case SB_BOTTOM:
4798 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4799 break;
4800
4801 case SB_LINEUP:
4802 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4803 break;
4804
4805 case SB_LINEDOWN:
4806 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4807 break;
4808
4809 case SB_PAGEUP:
4810 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4811 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4812 break;
4813
4814 case SB_PAGEDOWN:
4815 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4816 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4817 break;
4818
4819 case SB_THUMBTRACK:
4820 case SB_THUMBPOSITION:
4821 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4822 infoPtr->root->firstChild,
4823 (LONG)(SHORT)HIWORD(wParam));
4824 break;
4825
4826 case SB_ENDSCROLL:
4827 return 0;
4828 }
4829
4830 if (newFirstVisible != NULL)
4831 {
4832 if (newFirstVisible != oldFirstVisible)
4833 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4834 nScrollCode != SB_THUMBTRACK);
4835 else if (nScrollCode == SB_THUMBPOSITION)
4836 SetScrollPos(infoPtr->hwnd, SB_VERT,
4837 newFirstVisible->visibleOrder, TRUE);
4838 }
4839
4840 return 0;
4841 }
4842
4843 static LRESULT
4844 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4845 {
4846 int maxWidth;
4847 int scrollX = infoPtr->scrollX;
4848 int nScrollCode = LOWORD(wParam);
4849
4850 TRACE("wp %lx\n", wParam);
4851
4852 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4853 return FALSE;
4854
4855 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4856 /* shall never occur */
4857 if (maxWidth <= 0)
4858 {
4859 scrollX = 0;
4860 goto scroll;
4861 }
4862
4863 switch (nScrollCode)
4864 {
4865 case SB_LINELEFT:
4866 scrollX -= infoPtr->uItemHeight;
4867 break;
4868 case SB_LINERIGHT:
4869 scrollX += infoPtr->uItemHeight;
4870 break;
4871 case SB_PAGELEFT:
4872 scrollX -= infoPtr->clientWidth;
4873 break;
4874 case SB_PAGERIGHT:
4875 scrollX += infoPtr->clientWidth;
4876 break;
4877
4878 case SB_THUMBTRACK:
4879 case SB_THUMBPOSITION:
4880 scrollX = (int)(SHORT)HIWORD(wParam);
4881 break;
4882
4883 case SB_ENDSCROLL:
4884 return 0;
4885 }
4886
4887 if (scrollX > maxWidth)
4888 scrollX = maxWidth;
4889 else if (scrollX < 0)
4890 scrollX = 0;
4891
4892 scroll:
4893 if (scrollX != infoPtr->scrollX)
4894 {
4895 TREEVIEW_ITEM *item;
4896 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4897
4898 for (item = infoPtr->root->firstChild; item != NULL;
4899 item = TREEVIEW_GetNextListItem(infoPtr, item))
4900 {
4901 item->linesOffset += scroll_pixels;
4902 item->stateOffset += scroll_pixels;
4903 item->imageOffset += scroll_pixels;
4904 item->textOffset += scroll_pixels;
4905 }
4906
4907 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4908 infoPtr->scrollX = scrollX;
4909 UpdateWindow(infoPtr->hwnd);
4910 }
4911
4912 if (nScrollCode != SB_THUMBTRACK)
4913 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4914
4915 return 0;
4916 }
4917
4918 static LRESULT
4919 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4920 {
4921 short gcWheelDelta;
4922 UINT pulScrollLines = 3;
4923
4924 if (wParam & (MK_SHIFT | MK_CONTROL))
4925 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4926
4927 if (infoPtr->firstVisible == NULL)
4928 return TRUE;
4929
4930 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4931
4932 gcWheelDelta = -(short)HIWORD(wParam);
4933 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4934
4935 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4936 {
4937 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4938 int maxDy = infoPtr->maxVisibleOrder;
4939
4940 if (newDy > maxDy)
4941 newDy = maxDy;
4942
4943 if (newDy < 0)
4944 newDy = 0;
4945
4946 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4947 }
4948 return TRUE;
4949 }
4950
4951 /* Create/Destroy *******************************************************/
4952
4953 static void
4954 initialize_checkboxes(TREEVIEW_INFO *infoPtr)
4955 {
4956 RECT rc;
4957 HBITMAP hbm, hbmOld;
4958 HDC hdc, hdcScreen;
4959 int nIndex;
4960
4961 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4962
4963 hdcScreen = GetDC(0);
4964
4965 hdc = CreateCompatibleDC(hdcScreen);
4966 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4967 hbmOld = SelectObject(hdc, hbm);
4968
4969 SetRect(&rc, 0, 0, 48, 16);
4970 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4971
4972 SetRect(&rc, 18, 2, 30, 14);
4973 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4974 DFCS_BUTTONCHECK|DFCS_FLAT);
4975
4976 SetRect(&rc, 34, 2, 46, 14);
4977 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4978 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4979
4980 SelectObject(hdc, hbmOld);
4981 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4982 comctl32_color.clrWindow);
4983 TRACE("checkbox index %d\n", nIndex);
4984
4985 DeleteObject(hbm);
4986 DeleteDC(hdc);
4987 ReleaseDC(0, hdcScreen);
4988
4989 infoPtr->stateImageWidth = 16;
4990 infoPtr->stateImageHeight = 16;
4991 }
4992
4993 static LRESULT
4994 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4995 {
4996 RECT rcClient;
4997 TREEVIEW_INFO *infoPtr;
4998 LOGFONTW lf;
4999
5000 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5001
5002 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
5003
5004 if (infoPtr == NULL)
5005 {
5006 ERR("could not allocate info memory!\n");
5007 return 0;
5008 }
5009
5010 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5011
5012 infoPtr->hwnd = hwnd;
5013 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5014 infoPtr->Timer = 0;
5015 infoPtr->uNumItems = 0;
5016 infoPtr->cdmode = 0;
5017 infoPtr->uScrollTime = 300; /* milliseconds */
5018 infoPtr->bRedraw = TRUE;
5019
5020 GetClientRect(hwnd, &rcClient);
5021
5022 /* No scroll bars yet. */
5023 infoPtr->clientWidth = rcClient.right;
5024 infoPtr->clientHeight = rcClient.bottom;
5025 infoPtr->uInternalStatus = 0;
5026
5027 infoPtr->treeWidth = 0;
5028 infoPtr->treeHeight = 0;
5029
5030 infoPtr->uIndent = MINIMUM_INDENT;
5031 infoPtr->selectedItem = NULL;
5032 infoPtr->focusedItem = NULL;
5033 infoPtr->hotItem = NULL;
5034 infoPtr->editItem = NULL;
5035 infoPtr->firstVisible = NULL;
5036 infoPtr->maxVisibleOrder = 0;
5037 infoPtr->dropItem = NULL;
5038 infoPtr->insertMarkItem = NULL;
5039 infoPtr->insertBeforeorAfter = 0;
5040 /* dragList */
5041
5042 infoPtr->scrollX = 0;
5043
5044 infoPtr->clrBk = CLR_NONE; /* use system color */
5045 infoPtr->clrText = CLR_NONE; /* use system color */
5046 infoPtr->clrLine = CLR_DEFAULT;
5047 infoPtr->clrInsertMark = CLR_DEFAULT;
5048
5049 /* hwndToolTip */
5050
5051 infoPtr->hwndEdit = NULL;
5052 infoPtr->wpEditOrig = NULL;
5053 infoPtr->bIgnoreEditKillFocus = FALSE;
5054 infoPtr->bLabelChanged = FALSE;
5055
5056 infoPtr->himlNormal = NULL;
5057 infoPtr->himlState = NULL;
5058 infoPtr->normalImageWidth = 0;
5059 infoPtr->normalImageHeight = 0;
5060 infoPtr->stateImageWidth = 0;
5061 infoPtr->stateImageHeight = 0;
5062
5063 infoPtr->items = DPA_Create(16);
5064
5065 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5066 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5067 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5068 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5069 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5070
5071 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5072
5073 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5074 infoPtr->root->state = TVIS_EXPANDED;
5075 infoPtr->root->iLevel = -1;
5076 infoPtr->root->visibleOrder = -1;
5077
5078 infoPtr->hwndNotify = lpcs->hwndParent;
5079 infoPtr->hwndToolTip = 0;
5080
5081 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
5082
5083 /* Determine what type of notify should be issued */
5084 /* sets infoPtr->bNtfUnicode */
5085 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5086
5087 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5088 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5089 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5090 hwnd, 0, 0, 0);
5091
5092 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5093 initialize_checkboxes(infoPtr);
5094
5095 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5096 ShowScrollBar(hwnd, SB_VERT, FALSE);
5097 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5098
5099 OpenThemeData (hwnd, themeClass);
5100
5101 return 0;
5102 }
5103
5104
5105 static LRESULT
5106 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5107 {
5108 TRACE("\n");
5109
5110 /* free item data */
5111 TREEVIEW_RemoveTree(infoPtr);
5112 /* root isn't freed with other items */
5113 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5114 DPA_Destroy(infoPtr->items);
5115
5116 /* tool tip is automatically destroyed: we are its owner */
5117
5118 /* Restore original wndproc */
5119 if (infoPtr->hwndEdit)
5120 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5121 (DWORD_PTR)infoPtr->wpEditOrig);
5122
5123 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5124
5125 /* Deassociate treeview from the window before doing anything drastic. */
5126 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5127
5128
5129 DeleteObject(infoPtr->hDefaultFont);
5130 DeleteObject(infoPtr->hBoldFont);
5131 DeleteObject(infoPtr->hUnderlineFont);
5132 Free(infoPtr);
5133
5134 return 0;
5135 }
5136
5137 /* Miscellaneous Messages ***********************************************/
5138
5139 static LRESULT
5140 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5141 {
5142 static const struct
5143 {
5144 unsigned char code;
5145 }
5146 scroll[] =
5147 {
5148 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5149 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5150 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5151 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5152 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5153 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5154 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5155 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5156 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5157 #undef SCROLL_ENTRY
5158 };
5159
5160 if (key >= VK_PRIOR && key <= VK_DOWN)
5161 {
5162 unsigned char code = scroll[key - VK_PRIOR].code;
5163
5164 (((code & (1 << 7)) == (SB_HORZ << 7))
5165 ? TREEVIEW_HScroll
5166 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5167 }
5168
5169 return 0;
5170 }
5171
5172 /************************************************************************
5173 * TREEVIEW_KeyDown
5174 *
5175 * VK_UP Move selection to the previous non-hidden item.
5176 * VK_DOWN Move selection to the next non-hidden item.
5177 * VK_HOME Move selection to the first item.
5178 * VK_END Move selection to the last item.
5179 * VK_LEFT If expanded then collapse, otherwise move to parent.
5180 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5181 * VK_ADD Expand.
5182 * VK_SUBTRACT Collapse.
5183 * VK_MULTIPLY Expand all.
5184 * VK_PRIOR Move up GetVisibleCount items.
5185 * VK_NEXT Move down GetVisibleCount items.
5186 * VK_BACK Move to parent.
5187 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5188 */
5189 static LRESULT
5190 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5191 {
5192 /* If it is non-NULL and different, it will be selected and visible. */
5193 TREEVIEW_ITEM *newSelection = NULL;
5194
5195 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5196
5197 TRACE("%lx\n", wParam);
5198
5199 if (prevItem == NULL)
5200 return FALSE;
5201
5202 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5203 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5204
5205 switch (wParam)
5206 {
5207 case VK_UP:
5208 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5209 if (!newSelection)
5210 newSelection = infoPtr->root->firstChild;
5211 break;
5212
5213 case VK_DOWN:
5214 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5215 break;
5216
5217 case VK_HOME:
5218 newSelection = infoPtr->root->firstChild;
5219 break;
5220
5221 case VK_END:
5222 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5223 break;
5224
5225 case VK_LEFT:
5226 if (prevItem->state & TVIS_EXPANDED)
5227 {
5228 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5229 }
5230 else if (prevItem->parent != infoPtr->root)
5231 {
5232 newSelection = prevItem->parent;
5233 }
5234 break;
5235
5236 case VK_RIGHT:
5237 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5238 {
5239 if (!(prevItem->state & TVIS_EXPANDED))
5240 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5241 else
5242 {
5243 newSelection = prevItem->firstChild;
5244 }
5245 }
5246
5247 break;
5248
5249 case VK_MULTIPLY:
5250 TREEVIEW_ExpandAll(infoPtr, prevItem);
5251 break;
5252
5253 case VK_ADD:
5254 if (!(prevItem->state & TVIS_EXPANDED))
5255 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5256 break;
5257
5258 case VK_SUBTRACT:
5259 if (prevItem->state & TVIS_EXPANDED)
5260 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5261 break;
5262
5263 case VK_PRIOR:
5264 newSelection
5265 = TREEVIEW_GetListItem(infoPtr, prevItem,
5266 -TREEVIEW_GetVisibleCount(infoPtr));
5267 break;
5268
5269 case VK_NEXT:
5270 newSelection
5271 = TREEVIEW_GetListItem(infoPtr, prevItem,
5272 TREEVIEW_GetVisibleCount(infoPtr));
5273 break;
5274
5275 case VK_BACK:
5276 newSelection = prevItem->parent;
5277 if (newSelection == infoPtr->root)
5278 newSelection = NULL;
5279 break;
5280
5281 case VK_SPACE:
5282 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5283 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5284 break;
5285 }
5286
5287 if (newSelection && newSelection != prevItem)
5288 {
5289 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5290 TVC_BYKEYBOARD))
5291 {
5292 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5293 }
5294 }
5295
5296 return FALSE;
5297 }
5298
5299 static LRESULT
5300 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5301 {
5302 /* remove hot effect from item */
5303 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5304 infoPtr->hotItem = NULL;
5305
5306 return 0;
5307 }
5308
5309 static LRESULT
5310 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5311 {
5312 POINT pt;
5313 TRACKMOUSEEVENT trackinfo;
5314 TREEVIEW_ITEM * item;
5315
5316 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5317
5318 /* fill in the TRACKMOUSEEVENT struct */
5319 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5320 trackinfo.dwFlags = TME_QUERY;
5321 trackinfo.hwndTrack = infoPtr->hwnd;
5322
5323 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5324 _TrackMouseEvent(&trackinfo);
5325
5326 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5327 if(!(trackinfo.dwFlags & TME_LEAVE))
5328 {
5329 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5330 trackinfo.hwndTrack = infoPtr->hwnd;
5331 /* do it as fast as possible, minimal systimer latency will be used */
5332 trackinfo.dwHoverTime = 1;
5333
5334 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5335 /* and can properly deactivate the hot item */
5336 _TrackMouseEvent(&trackinfo);
5337 }
5338
5339 pt.x = (short)LOWORD(lParam);
5340 pt.y = (short)HIWORD(lParam);
5341
5342 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5343
5344 if (item != infoPtr->hotItem)
5345 {
5346 /* redraw old hot item */
5347 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5348 infoPtr->hotItem = item;
5349 /* redraw new hot item */
5350 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5351 }
5352
5353 return 0;
5354 }
5355
5356 /* Draw themed border */
5357 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5358 {
5359 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5360 HDC dc;
5361 RECT r;
5362 HRGN cliprgn;
5363 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5364 cyEdge = GetSystemMetrics (SM_CYEDGE);
5365
5366 if (!theme)
5367 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5368
5369 GetWindowRect(infoPtr->hwnd, &r);
5370
5371 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5372 r.right - cxEdge, r.bottom - cyEdge);
5373 if (region != (HRGN)1)
5374 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5375 OffsetRect(&r, -r.left, -r.top);
5376
5377 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5378 OffsetRect(&r, -r.left, -r.top);
5379
5380 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5381 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5382 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5383 ReleaseDC(infoPtr->hwnd, dc);
5384
5385 /* Call default proc to get the scrollbars etc. painted */
5386 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5387
5388 return TRUE;
5389 }
5390
5391 static LRESULT
5392 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5393 {
5394 LPNMHDR lpnmh = (LPNMHDR)lParam;
5395
5396 if (lpnmh->code == PGN_CALCSIZE) {
5397 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5398
5399 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5400 lppgc->iWidth = infoPtr->treeWidth;
5401 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5402 infoPtr->treeWidth, infoPtr->clientWidth);
5403 }
5404 else {
5405 lppgc->iHeight = infoPtr->treeHeight;
5406 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5407 infoPtr->treeHeight, infoPtr->clientHeight);
5408 }
5409 return 0;
5410 }
5411 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5412 }
5413
5414 static LRESULT
5415 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5416 {
5417 if (wParam == SIZE_RESTORED)
5418 {
5419 infoPtr->clientWidth = (short)LOWORD(lParam);
5420 infoPtr->clientHeight = (short)HIWORD(lParam);
5421
5422 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5423 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5424 TREEVIEW_UpdateScrollBars(infoPtr);
5425 }
5426 else
5427 {
5428 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5429 }
5430
5431 TREEVIEW_Invalidate(infoPtr, NULL);
5432 return 0;
5433 }
5434
5435 static void TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
5436 {
5437 TREEVIEW_ITEM *child = item->firstChild;
5438
5439 item->state &= ~TVIS_STATEIMAGEMASK;
5440 item->state |= INDEXTOSTATEIMAGEMASK(1);
5441
5442 while (child)
5443 {
5444 TREEVIEW_ITEM *next = child->nextSibling;
5445 TREEVIEW_ResetImageStateIndex(infoPtr, child);
5446 child = next;
5447 }
5448 }
5449
5450 static LRESULT
5451 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5452 {
5453 TRACE("(%lx %lx)\n", wParam, lParam);
5454
5455 if (wParam == GWL_STYLE)
5456 {
5457 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5458
5459 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5460 {
5461 if (dwNewStyle & TVS_CHECKBOXES)
5462 {
5463 initialize_checkboxes(infoPtr);
5464 TRACE("checkboxes enabled\n");
5465
5466 /* set all items to state image index 1 */
5467 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5468 }
5469 else
5470 {
5471 FIXME("tried to disable checkboxes\n");
5472 }
5473 }
5474
5475 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5476 {
5477 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5478 {
5479 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5480 TRACE("tooltips enabled\n");
5481 }
5482 else
5483 {
5484 DestroyWindow(infoPtr->hwndToolTip);
5485 infoPtr->hwndToolTip = 0;
5486 TRACE("tooltips disabled\n");
5487 }
5488 }
5489
5490 infoPtr->dwStyle = dwNewStyle;
5491 }
5492
5493 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5494 TREEVIEW_UpdateScrollBars(infoPtr);
5495 TREEVIEW_Invalidate(infoPtr, NULL);
5496
5497 return 0;
5498 }
5499
5500 static LRESULT
5501 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5502 {
5503 POINT pt;
5504 TREEVIEW_ITEM * item;
5505 NMMOUSE nmmouse;
5506
5507 GetCursorPos(&pt);
5508 ScreenToClient(infoPtr->hwnd, &pt);
5509
5510 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5511
5512 memset(&nmmouse, 0, sizeof(nmmouse));
5513 nmmouse.hdr.hwndFrom = infoPtr->hwnd;
5514 nmmouse.hdr.idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
5515 nmmouse.hdr.code = NM_SETCURSOR;
5516 if (item)
5517 {
5518 nmmouse.dwItemSpec = (DWORD_PTR)item;
5519 nmmouse.dwItemData = item->lParam;
5520 }
5521 nmmouse.pt.x = 0;
5522 nmmouse.pt.y = 0;
5523 nmmouse.dwHitInfo = lParam;
5524 if (TREEVIEW_SendRealNotify(infoPtr, nmmouse.hdr.idFrom, &nmmouse.hdr))
5525 return 0;
5526
5527 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5528 {
5529 SetCursor(infoPtr->hcurHand);
5530 return 0;
5531 }
5532 else
5533 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5534 }
5535
5536 static LRESULT
5537 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5538 {
5539 TRACE("\n");
5540
5541 if (!infoPtr->selectedItem)
5542 {
5543 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5544 TVC_UNKNOWN);
5545 }
5546
5547 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5548 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5549 return 0;
5550 }
5551
5552 static LRESULT
5553 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5554 {
5555 TRACE("\n");
5556
5557 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5558 UpdateWindow(infoPtr->hwnd);
5559 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5560 return 0;
5561 }
5562
5563 /* update theme after a WM_THEMECHANGED message */
5564 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5565 {
5566 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5567 CloseThemeData (theme);
5568 OpenThemeData (infoPtr->hwnd, themeClass);
5569 return 0;
5570 }
5571
5572
5573 static LRESULT WINAPI
5574 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5575 {
5576 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5577
5578 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5579
5580 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5581 else
5582 {
5583 if (uMsg == WM_CREATE)
5584 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5585 else
5586 goto def;
5587 }
5588
5589 switch (uMsg)
5590 {
5591 case TVM_CREATEDRAGIMAGE:
5592 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5593
5594 case TVM_DELETEITEM:
5595 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5596
5597 case TVM_EDITLABELA:
5598 case TVM_EDITLABELW:
5599 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5600
5601 case TVM_ENDEDITLABELNOW:
5602 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5603
5604 case TVM_ENSUREVISIBLE:
5605 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5606
5607 case TVM_EXPAND:
5608 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5609
5610 case TVM_GETBKCOLOR:
5611 return TREEVIEW_GetBkColor(infoPtr);
5612
5613 case TVM_GETCOUNT:
5614 return TREEVIEW_GetCount(infoPtr);
5615
5616 case TVM_GETEDITCONTROL:
5617 return TREEVIEW_GetEditControl(infoPtr);
5618
5619 case TVM_GETIMAGELIST:
5620 return TREEVIEW_GetImageList(infoPtr, wParam);
5621
5622 case TVM_GETINDENT:
5623 return TREEVIEW_GetIndent(infoPtr);
5624
5625 case TVM_GETINSERTMARKCOLOR:
5626 return TREEVIEW_GetInsertMarkColor(infoPtr);
5627
5628 case TVM_GETISEARCHSTRINGA:
5629 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5630 return 0;
5631
5632 case TVM_GETISEARCHSTRINGW:
5633 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5634 return 0;
5635
5636 case TVM_GETITEMA:
5637 case TVM_GETITEMW:
5638 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5639 uMsg == TVM_GETITEMW);
5640 case TVM_GETITEMHEIGHT:
5641 return TREEVIEW_GetItemHeight(infoPtr);
5642
5643 case TVM_GETITEMRECT:
5644 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5645
5646 case TVM_GETITEMSTATE:
5647 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5648
5649 case TVM_GETLINECOLOR:
5650 return TREEVIEW_GetLineColor(infoPtr);
5651
5652 case TVM_GETNEXTITEM:
5653 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5654
5655 case TVM_GETSCROLLTIME:
5656 return TREEVIEW_GetScrollTime(infoPtr);
5657
5658 case TVM_GETTEXTCOLOR:
5659 return TREEVIEW_GetTextColor(infoPtr);
5660
5661 case TVM_GETTOOLTIPS:
5662 return TREEVIEW_GetToolTips(infoPtr);
5663
5664 case TVM_GETUNICODEFORMAT:
5665 return TREEVIEW_GetUnicodeFormat(infoPtr);
5666
5667 case TVM_GETVISIBLECOUNT:
5668 return TREEVIEW_GetVisibleCount(infoPtr);
5669
5670 case TVM_HITTEST:
5671 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5672
5673 case TVM_INSERTITEMA:
5674 case TVM_INSERTITEMW:
5675 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5676 uMsg == TVM_INSERTITEMW);
5677 case TVM_SELECTITEM:
5678 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5679
5680 case TVM_SETBKCOLOR:
5681 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5682
5683 case TVM_SETIMAGELIST:
5684 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5685
5686 case TVM_SETINDENT:
5687 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5688
5689 case TVM_SETINSERTMARK:
5690 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5691
5692 case TVM_SETINSERTMARKCOLOR:
5693 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5694
5695 case TVM_SETITEMA:
5696 case TVM_SETITEMW:
5697 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5698 uMsg == TVM_SETITEMW);
5699 case TVM_SETLINECOLOR:
5700 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5701
5702 case TVM_SETITEMHEIGHT:
5703 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5704
5705 case TVM_SETSCROLLTIME:
5706 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5707
5708 case TVM_SETTEXTCOLOR:
5709 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5710
5711 case TVM_SETTOOLTIPS:
5712 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5713
5714 case TVM_SETUNICODEFORMAT:
5715 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5716
5717 case TVM_SORTCHILDREN:
5718 return TREEVIEW_SortChildren(infoPtr, lParam);
5719
5720 case TVM_SORTCHILDRENCB:
5721 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5722
5723 case WM_CHAR:
5724 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5725
5726 case WM_COMMAND:
5727 return TREEVIEW_Command(infoPtr, wParam, lParam);
5728
5729 case WM_DESTROY:
5730 return TREEVIEW_Destroy(infoPtr);
5731
5732 /* WM_ENABLE */
5733
5734 case WM_ERASEBKGND:
5735 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5736
5737 case WM_GETDLGCODE:
5738 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5739
5740 case WM_GETFONT:
5741 return TREEVIEW_GetFont(infoPtr);
5742
5743 case WM_HSCROLL:
5744 return TREEVIEW_HScroll(infoPtr, wParam);
5745
5746 case WM_KEYDOWN:
5747 return TREEVIEW_KeyDown(infoPtr, wParam);
5748
5749 case WM_KILLFOCUS:
5750 return TREEVIEW_KillFocus(infoPtr);
5751
5752 case WM_LBUTTONDBLCLK:
5753 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5754
5755 case WM_LBUTTONDOWN:
5756 return TREEVIEW_LButtonDown(infoPtr, lParam);
5757
5758 /* WM_MBUTTONDOWN */
5759
5760 case WM_MOUSELEAVE:
5761 return TREEVIEW_MouseLeave(infoPtr);
5762
5763 case WM_MOUSEMOVE:
5764 return TREEVIEW_MouseMove(infoPtr, lParam);
5765
5766 case WM_NCLBUTTONDOWN:
5767 if (infoPtr->hwndEdit)
5768 SetFocus(infoPtr->hwnd);
5769 goto def;
5770
5771 case WM_NCPAINT:
5772 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5773
5774 case WM_NOTIFY:
5775 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5776
5777 case WM_NOTIFYFORMAT:
5778 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5779
5780 case WM_PRINTCLIENT:
5781 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5782
5783 case WM_PAINT:
5784 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5785
5786 case WM_RBUTTONDOWN:
5787 return TREEVIEW_RButtonDown(infoPtr, lParam);
5788
5789 case WM_SETCURSOR:
5790 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5791
5792 case WM_SETFOCUS:
5793 return TREEVIEW_SetFocus(infoPtr);
5794
5795 case WM_SETFONT:
5796 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5797
5798 case WM_SETREDRAW:
5799 return TREEVIEW_SetRedraw(infoPtr, wParam);
5800
5801 case WM_SIZE:
5802 return TREEVIEW_Size(infoPtr, wParam, lParam);
5803
5804 case WM_STYLECHANGED:
5805 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5806
5807 case WM_SYSCOLORCHANGE:
5808 COMCTL32_RefreshSysColors();
5809 return 0;
5810
5811 /* WM_SYSKEYDOWN */
5812
5813 case WM_TIMER:
5814 return TREEVIEW_HandleTimer(infoPtr, wParam);
5815
5816 case WM_THEMECHANGED:
5817 return TREEVIEW_ThemeChanged (infoPtr);
5818
5819 case WM_VSCROLL:
5820 return TREEVIEW_VScroll(infoPtr, wParam);
5821
5822 /* WM_WININICHANGE */
5823
5824 case WM_MOUSEWHEEL:
5825 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5826
5827 case WM_DRAWITEM:
5828 TRACE("drawItem\n");
5829 goto def;
5830
5831 default:
5832 /* This mostly catches MFC and Delphi messages. :( */
5833 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5834 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5835 def:
5836 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5837 }
5838 }
5839
5840
5841 /* Class Registration ***************************************************/
5842
5843 VOID
5844 TREEVIEW_Register(void)
5845 {
5846 WNDCLASSW wndClass;
5847
5848 TRACE("\n");
5849
5850 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5851 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5852 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5853 wndClass.cbClsExtra = 0;
5854 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5855
5856 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5857 wndClass.hbrBackground = 0;
5858 wndClass.lpszClassName = WC_TREEVIEWW;
5859
5860 RegisterClassW(&wndClass);
5861 }
5862
5863
5864 VOID
5865 TREEVIEW_Unregister(void)
5866 {
5867 UnregisterClassW(WC_TREEVIEWW, NULL);
5868 }
5869
5870
5871 /* Tree Verification ****************************************************/
5872
5873 static inline void
5874 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5875
5876 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5877 const TREEVIEW_ITEM *item)
5878 {
5879 assert(infoPtr != NULL);
5880 assert(item != NULL);
5881
5882 /* both NULL, or both non-null */
5883 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5884
5885 assert(item->firstChild != item);
5886 assert(item->lastChild != item);
5887
5888 if (item->firstChild)
5889 {
5890 assert(item->firstChild->parent == item);
5891 assert(item->firstChild->prevSibling == NULL);
5892 }
5893
5894 if (item->lastChild)
5895 {
5896 assert(item->lastChild->parent == item);
5897 assert(item->lastChild->nextSibling == NULL);
5898 }
5899
5900 assert(item->nextSibling != item);
5901 if (item->nextSibling)
5902 {
5903 assert(item->nextSibling->parent == item->parent);
5904 assert(item->nextSibling->prevSibling == item);
5905 }
5906
5907 assert(item->prevSibling != item);
5908 if (item->prevSibling)
5909 {
5910 assert(item->prevSibling->parent == item->parent);
5911 assert(item->prevSibling->nextSibling == item);
5912 }
5913 }
5914
5915 static inline void
5916 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5917 {
5918 assert(item != NULL);
5919
5920 assert(item->parent != NULL);
5921 assert(item->parent != item);
5922 assert(item->iLevel == item->parent->iLevel + 1);
5923
5924 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5925
5926 TREEVIEW_VerifyItemCommon(infoPtr, item);
5927
5928 TREEVIEW_VerifyChildren(infoPtr, item);
5929 }
5930
5931 static inline void
5932 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5933 {
5934 const TREEVIEW_ITEM *child;
5935 assert(item != NULL);
5936
5937 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5938 TREEVIEW_VerifyItem(infoPtr, child);
5939 }
5940
5941 static inline void
5942 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5943 {
5944 TREEVIEW_ITEM *root = infoPtr->root;
5945
5946 assert(root != NULL);
5947 assert(root->iLevel == -1);
5948 assert(root->parent == NULL);
5949 assert(root->prevSibling == NULL);
5950
5951 TREEVIEW_VerifyItemCommon(infoPtr, root);
5952
5953 TREEVIEW_VerifyChildren(infoPtr, root);
5954 }
5955
5956 static void
5957 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5958 {
5959 if (!TRACE_ON(treeview)) return;
5960
5961 assert(infoPtr != NULL);
5962 TREEVIEW_VerifyRoot(infoPtr);
5963 }
Maarten's multimedia branch