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shell32: Build the file filter by hand instead of hardcoding it in resource strings.
[wine.git] / dlls / comctl32 / treeview.c
blobe3f9b1b41e6c90532e08b67e7cf99ae766e70129
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_CUT, 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 *wineItem)
351 {
352 if (!wineItem)
353 return NULL;
354
355 while (wineItem->lastChild)
356 {
357 if (wineItem->state & TVIS_EXPANDED)
358 wineItem = wineItem->lastChild;
359 else
360 break;
361 }
362
363 if (wineItem == infoPtr->root)
364 return NULL;
365
366 return wineItem;
367 }
368
369 /***************************************************************************
370 * This method returns the previous non-hidden item in the list not
371 * considering the tree hierarchy.
372 */
373 static TREEVIEW_ITEM *
374 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
375 {
376 if (tvItem->prevSibling)
377 {
378 /* This item has a prevSibling, get the last item in the sibling's tree. */
379 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
380
381 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
382 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
383 else
384 return upItem;
385 }
386 else
387 {
388 /* this item does not have a prevSibling, get the parent */
389 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
390 }
391 }
392
393
394 /***************************************************************************
395 * This method returns the next physical item in the treeview not
396 * considering the tree hierarchy.
397 */
398 static TREEVIEW_ITEM *
399 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
400 {
401 /*
402 * If this item has children and is expanded, return the first child
403 */
404 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
405 {
406 return tvItem->firstChild;
407 }
408
409
410 /*
411 * try to get the sibling
412 */
413 if (tvItem->nextSibling)
414 return tvItem->nextSibling;
415
416 /*
417 * Otherwise, get the parent's sibling.
418 */
419 while (tvItem->parent)
420 {
421 tvItem = tvItem->parent;
422
423 if (tvItem->nextSibling)
424 return tvItem->nextSibling;
425 }
426
427 return NULL;
428 }
429
430 /***************************************************************************
431 * This method returns the nth item starting at the given item. It returns
432 * the last item (or first) we we run out of items.
433 *
434 * Will scroll backward if count is <0.
435 * forward if count is >0.
436 */
437 static TREEVIEW_ITEM *
438 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
439 LONG count)
440 {
441 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
442 TREEVIEW_ITEM *previousItem;
443
444 assert(wineItem != NULL);
445
446 if (count > 0)
447 {
448 next_item = TREEVIEW_GetNextListItem;
449 }
450 else if (count < 0)
451 {
452 count = -count;
453 next_item = TREEVIEW_GetPrevListItem;
454 }
455 else
456 return wineItem;
457
458 do
459 {
460 previousItem = wineItem;
461 wineItem = next_item(infoPtr, wineItem);
462
463 } while (--count && wineItem != NULL);
464
465
466 return wineItem ? wineItem : previousItem;
467 }
468
469 /* Notifications ************************************************************/
470
471 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
472 {
473 if (!infoPtr->bNtfUnicode) {
474 switch (code) {
475 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
476 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
477 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
478 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
479 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
480 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
481 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
482 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
483 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
484 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
485 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
486 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
487 }
488 }
489 return code;
490 }
491
492 static inline BOOL
493 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPNMHDR pnmh)
494 {
495 TRACE("wParam=%ld, lParam=%p\n", wParam, pnmh);
496 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, (LPARAM)pnmh);
497 }
498
499 static BOOL
500 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
501 {
502 NMHDR nmhdr;
503 HWND hwnd = infoPtr->hwnd;
504
505 TRACE("%d\n", code);
506 nmhdr.hwndFrom = hwnd;
507 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
508 nmhdr.code = get_notifycode(infoPtr, code);
509
510 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, &nmhdr);
511 }
512
513 static VOID
514 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
515 {
516 tvItem->mask = mask;
517 tvItem->hItem = item;
518 tvItem->state = item->state;
519 tvItem->stateMask = 0;
520 tvItem->iImage = item->iImage;
521 tvItem->iSelectedImage = item->iSelectedImage;
522 tvItem->cChildren = item->cChildren;
523 tvItem->lParam = item->lParam;
524
525 if(mask & TVIF_TEXT)
526 {
527 if (!infoPtr->bNtfUnicode)
528 {
529 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
530 tvItem->pszText = Alloc (tvItem->cchTextMax);
531 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
532 }
533 else
534 {
535 tvItem->cchTextMax = item->cchTextMax;
536 tvItem->pszText = item->pszText;
537 }
538 }
539 else
540 {
541 tvItem->cchTextMax = 0;
542 tvItem->pszText = NULL;
543 }
544 }
545
546 static BOOL
547 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
548 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
549 {
550 HWND hwnd = infoPtr->hwnd;
551 NMTREEVIEWW nmhdr;
552 BOOL ret;
553
554 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
555 code, action, oldItem, newItem);
556
557 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
558
559 nmhdr.hdr.hwndFrom = hwnd;
560 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
561 nmhdr.hdr.code = get_notifycode(infoPtr, code);
562 nmhdr.action = action;
563
564 if (oldItem)
565 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
566
567 if (newItem)
568 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
569
570 nmhdr.ptDrag.x = 0;
571 nmhdr.ptDrag.y = 0;
572
573 ret = TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
574 if (!infoPtr->bNtfUnicode)
575 {
576 Free(nmhdr.itemOld.pszText);
577 Free(nmhdr.itemNew.pszText);
578 }
579 return ret;
580 }
581
582 static BOOL
583 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
584 HTREEITEM dragItem, POINT pt)
585 {
586 HWND hwnd = infoPtr->hwnd;
587 NMTREEVIEWW nmhdr;
588
589 TRACE("code:%d dragitem:%p\n", code, dragItem);
590
591 nmhdr.hdr.hwndFrom = hwnd;
592 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
593 nmhdr.hdr.code = get_notifycode(infoPtr, code);
594 nmhdr.action = 0;
595 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
596 nmhdr.itemNew.hItem = dragItem;
597 nmhdr.itemNew.state = dragItem->state;
598 nmhdr.itemNew.lParam = dragItem->lParam;
599
600 nmhdr.ptDrag.x = pt.x;
601 nmhdr.ptDrag.y = pt.y;
602
603 return TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, &nmhdr.hdr);
604 }
605
606
607 static BOOL
608 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
609 HDC hdc, RECT rc)
610 {
611 HWND hwnd = infoPtr->hwnd;
612 NMTVCUSTOMDRAW nmcdhdr;
613 LPNMCUSTOMDRAW nmcd;
614
615 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
616
617 nmcd = &nmcdhdr.nmcd;
618 nmcd->hdr.hwndFrom = hwnd;
619 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
620 nmcd->hdr.code = NM_CUSTOMDRAW;
621 nmcd->dwDrawStage = dwDrawStage;
622 nmcd->hdc = hdc;
623 nmcd->rc = rc;
624 nmcd->dwItemSpec = 0;
625 nmcd->uItemState = 0;
626 nmcd->lItemlParam = 0;
627 nmcdhdr.clrText = infoPtr->clrText;
628 nmcdhdr.clrTextBk = infoPtr->clrBk;
629 nmcdhdr.iLevel = 0;
630
631 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr.nmcd.hdr);
632 }
633
634
635
636 /* FIXME: need to find out when the flags in uItemState need to be set */
637
638 static BOOL
639 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
640 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
641 NMTVCUSTOMDRAW *nmcdhdr)
642 {
643 HWND hwnd = infoPtr->hwnd;
644 LPNMCUSTOMDRAW nmcd;
645 DWORD dwDrawStage;
646 DWORD_PTR dwItemSpec;
647 UINT uItemState;
648
649 dwDrawStage = CDDS_ITEM | uItemDrawState;
650 dwItemSpec = (DWORD_PTR)wineItem;
651 uItemState = 0;
652 if (wineItem->state & TVIS_SELECTED)
653 uItemState |= CDIS_SELECTED;
654 if (wineItem == infoPtr->selectedItem)
655 uItemState |= CDIS_FOCUS;
656 if (wineItem == infoPtr->hotItem)
657 uItemState |= CDIS_HOT;
658
659 nmcd = &nmcdhdr->nmcd;
660 nmcd->hdr.hwndFrom = hwnd;
661 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
662 nmcd->hdr.code = NM_CUSTOMDRAW;
663 nmcd->dwDrawStage = dwDrawStage;
664 nmcd->hdc = hdc;
665 nmcd->rc = wineItem->rect;
666 nmcd->dwItemSpec = dwItemSpec;
667 nmcd->uItemState = uItemState;
668 nmcd->lItemlParam = wineItem->lParam;
669 nmcdhdr->iLevel = wineItem->iLevel;
670
671 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
672 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
673 nmcd->uItemState, nmcd->lItemlParam);
674
675 return TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, &nmcdhdr->nmcd.hdr);
676 }
677
678 static BOOL
679 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
680 {
681 HWND hwnd = infoPtr->hwnd;
682 NMTVDISPINFOW tvdi;
683 BOOL ret;
684
685 tvdi.hdr.hwndFrom = hwnd;
686 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
687 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
688
689 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
690 &tvdi.item, editItem);
691
692 ret = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
693
694 if (!infoPtr->bNtfUnicode)
695 Free(tvdi.item.pszText);
696
697 return ret;
698 }
699
700 static void
701 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
702 UINT mask)
703 {
704 NMTVDISPINFOEXW callback;
705 HWND hwnd = infoPtr->hwnd;
706
707 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
708 mask &= wineItem->callbackMask;
709
710 if (mask == 0) return;
711
712 callback.hdr.hwndFrom = hwnd;
713 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
714 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
715
716 /* 'state' always contains valid value, as well as 'lParam'.
717 * All other parameters are uninitialized.
718 */
719 callback.item.pszText = wineItem->pszText;
720 callback.item.cchTextMax = wineItem->cchTextMax;
721 callback.item.mask = mask;
722 callback.item.hItem = wineItem;
723 callback.item.state = wineItem->state;
724 callback.item.lParam = wineItem->lParam;
725
726 /* If text is changed we need to recalculate textWidth */
727 if (mask & TVIF_TEXT)
728 wineItem->textWidth = 0;
729
730 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, &callback.hdr);
731 TRACE("resulting code 0x%08x\n", callback.hdr.code);
732
733 /* It may have changed due to a call to SetItem. */
734 mask &= wineItem->callbackMask;
735
736 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
737 {
738 /* Instead of copying text into our buffer user specified its own */
739 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
740 LPWSTR newText;
741 int buflen;
742 int len = MultiByteToWideChar( CP_ACP, 0,
743 (LPSTR)callback.item.pszText, -1,
744 NULL, 0);
745 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
746 newText = ReAlloc(wineItem->pszText, buflen);
747
748 TRACE("returned str %s, len=%d, buflen=%d\n",
749 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
750
751 if (newText)
752 {
753 wineItem->pszText = newText;
754 MultiByteToWideChar( CP_ACP, 0,
755 (LPSTR)callback.item.pszText, -1,
756 wineItem->pszText, buflen/sizeof(WCHAR));
757 wineItem->cchTextMax = buflen/sizeof(WCHAR);
758 }
759 /* If ReAlloc fails we have nothing to do, but keep original text */
760 }
761 else {
762 int len = max(lstrlenW(callback.item.pszText) + 1,
763 TEXT_CALLBACK_SIZE);
764 LPWSTR newText = ReAlloc(wineItem->pszText, len);
765
766 TRACE("returned wstr %s, len=%d\n",
767 debugstr_w(callback.item.pszText), len);
768
769 if (newText)
770 {
771 wineItem->pszText = newText;
772 strcpyW(wineItem->pszText, callback.item.pszText);
773 wineItem->cchTextMax = len;
774 }
775 /* If ReAlloc fails we have nothing to do, but keep original text */
776 }
777 }
778 else if (mask & TVIF_TEXT) {
779 /* User put text into our buffer, that is ok unless A string */
780 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
781 LPWSTR newText;
782 LPWSTR oldText = NULL;
783 int buflen;
784 int len = MultiByteToWideChar( CP_ACP, 0,
785 (LPSTR)callback.item.pszText, -1,
786 NULL, 0);
787 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
788 newText = Alloc(buflen);
789
790 TRACE("same buffer str %s, len=%d, buflen=%d\n",
791 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
792
793 if (newText)
794 {
795 oldText = wineItem->pszText;
796 wineItem->pszText = newText;
797 MultiByteToWideChar( CP_ACP, 0,
798 (LPSTR)callback.item.pszText, -1,
799 wineItem->pszText, buflen/sizeof(WCHAR));
800 wineItem->cchTextMax = buflen/sizeof(WCHAR);
801 Free(oldText);
802 }
803 }
804 }
805
806 if (mask & TVIF_IMAGE)
807 wineItem->iImage = callback.item.iImage;
808
809 if (mask & TVIF_SELECTEDIMAGE)
810 wineItem->iSelectedImage = callback.item.iSelectedImage;
811
812 if (mask & TVIF_EXPANDEDIMAGE)
813 wineItem->iExpandedImage = callback.item.iExpandedImage;
814
815 if (mask & TVIF_CHILDREN)
816 wineItem->cChildren = callback.item.cChildren;
817
818 /* These members are now permanently set. */
819 if (callback.item.mask & TVIF_DI_SETITEM)
820 wineItem->callbackMask &= ~callback.item.mask;
821 }
822
823 /***************************************************************************
824 * This function uses cChildren field to decide whether the item has
825 * children or not.
826 * Note: if this returns TRUE, the child items may not actually exist,
827 * they could be virtual.
828 *
829 * Just use wineItem->firstChild to check for physical children.
830 */
831 static BOOL
832 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
833 {
834 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
835
836 return wineItem->cChildren > 0;
837 }
838
839 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
840 {
841 INT format;
842
843 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
844
845 if (nCommand != NF_REQUERY) return 0;
846
847 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
848 TRACE("format=%d\n", format);
849
850 if (format != NFR_ANSI && format != NFR_UNICODE) return 0;
851
852 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
853
854 return format;
855 }
856
857 /* Item Position ********************************************************/
858
859 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
860 static VOID
861 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
862 {
863 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
864 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
865 > TVS_LINESATROOT);
866
867 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
868 - infoPtr->scrollX;
869 item->stateOffset = item->linesOffset + infoPtr->uIndent;
870 item->imageOffset = item->stateOffset
871 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
872 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
873 }
874
875 static VOID
876 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
877 {
878 HDC hdc;
879 HFONT hOldFont=0;
880 SIZE sz;
881
882 /* DRAW's OM docker creates items like this */
883 if (item->pszText == NULL)
884 {
885 item->textWidth = 0;
886 return;
887 }
888
889 if (hDC != 0)
890 {
891 hdc = hDC;
892 }
893 else
894 {
895 hdc = GetDC(infoPtr->hwnd);
896 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
897 }
898
899 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
900 item->textWidth = sz.cx;
901
902 if (hDC == 0)
903 {
904 SelectObject(hdc, hOldFont);
905 ReleaseDC(0, hdc);
906 }
907 }
908
909 static VOID
910 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
911 {
912 item->rect.top = infoPtr->uItemHeight *
913 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
914
915 item->rect.bottom = item->rect.top
916 + infoPtr->uItemHeight * item->iIntegral - 1;
917
918 item->rect.left = 0;
919 item->rect.right = infoPtr->clientWidth;
920 }
921
922 /* We know that only items after start need their order updated. */
923 static void
924 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
925 {
926 TREEVIEW_ITEM *item;
927 int order;
928
929 if (!start)
930 {
931 start = infoPtr->root->firstChild;
932 order = 0;
933 }
934 else
935 order = start->visibleOrder;
936
937 for (item = start; item != NULL;
938 item = TREEVIEW_GetNextListItem(infoPtr, item))
939 {
940 if (!ISVISIBLE(item) && order > 0)
941 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
942 item->visibleOrder = order;
943 order += item->iIntegral;
944 }
945
946 infoPtr->maxVisibleOrder = order;
947
948 for (item = start; item != NULL;
949 item = TREEVIEW_GetNextListItem(infoPtr, item))
950 {
951 TREEVIEW_ComputeItemRect(infoPtr, item);
952 }
953 }
954
955
956 /* Update metrics of all items in selected subtree.
957 * root must be expanded
958 */
959 static VOID
960 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
961 {
962 TREEVIEW_ITEM *sibling;
963 HDC hdc;
964 HFONT hOldFont;
965
966 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
967 return;
968
969 root->state &= ~TVIS_EXPANDED;
970 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
971 root->state |= TVIS_EXPANDED;
972
973 hdc = GetDC(infoPtr->hwnd);
974 hOldFont = SelectObject(hdc, infoPtr->hFont);
975
976 for (; root != sibling;
977 root = TREEVIEW_GetNextListItem(infoPtr, root))
978 {
979 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
980
981 if (root->callbackMask & TVIF_TEXT)
982 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
983
984 if (root->textWidth == 0)
985 {
986 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
987 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
988 }
989 }
990
991 SelectObject(hdc, hOldFont);
992 ReleaseDC(infoPtr->hwnd, hdc);
993 }
994
995 /* Item Allocation **********************************************************/
996
997 static TREEVIEW_ITEM *
998 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
999 {
1000 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
1001
1002 if (!newItem)
1003 return NULL;
1004
1005 /* I_IMAGENONE would make more sense but this is neither what is
1006 * documented (MSDN doesn't specify) nor what Windows actually does
1007 * (it sets it to zero)... and I can so imagine an application using
1008 * inc/dec to toggle the images. */
1009 newItem->iImage = 0;
1010 newItem->iSelectedImage = 0;
1011 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1012
1013 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1014 {
1015 Free(newItem);
1016 return NULL;
1017 }
1018
1019 return newItem;
1020 }
1021
1022 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1023 * free item->pszText. */
1024 static void
1025 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1026 {
1027 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1028 if (infoPtr->selectedItem == item)
1029 infoPtr->selectedItem = NULL;
1030 if (infoPtr->hotItem == item)
1031 infoPtr->hotItem = NULL;
1032 if (infoPtr->focusedItem == item)
1033 infoPtr->focusedItem = NULL;
1034 if (infoPtr->firstVisible == item)
1035 infoPtr->firstVisible = NULL;
1036 if (infoPtr->dropItem == item)
1037 infoPtr->dropItem = NULL;
1038 if (infoPtr->insertMarkItem == item)
1039 infoPtr->insertMarkItem = NULL;
1040 Free(item);
1041 }
1042
1043
1044 /* Item Insertion *******************************************************/
1045
1046 /***************************************************************************
1047 * This method inserts newItem before sibling as a child of parent.
1048 * sibling can be NULL, but only if parent has no children.
1049 */
1050 static void
1051 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1052 TREEVIEW_ITEM *parent)
1053 {
1054 assert(parent != NULL);
1055
1056 if (sibling != NULL)
1057 {
1058 assert(sibling->parent == parent);
1059
1060 if (sibling->prevSibling != NULL)
1061 sibling->prevSibling->nextSibling = newItem;
1062
1063 newItem->prevSibling = sibling->prevSibling;
1064 sibling->prevSibling = newItem;
1065 }
1066 else
1067 newItem->prevSibling = NULL;
1068
1069 newItem->nextSibling = sibling;
1070
1071 if (parent->firstChild == sibling)
1072 parent->firstChild = newItem;
1073
1074 if (parent->lastChild == NULL)
1075 parent->lastChild = newItem;
1076 }
1077
1078 /***************************************************************************
1079 * This method inserts newItem after sibling as a child of parent.
1080 * sibling can be NULL, but only if parent has no children.
1081 */
1082 static void
1083 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1084 TREEVIEW_ITEM *parent)
1085 {
1086 assert(parent != NULL);
1087
1088 if (sibling != NULL)
1089 {
1090 assert(sibling->parent == parent);
1091
1092 if (sibling->nextSibling != NULL)
1093 sibling->nextSibling->prevSibling = newItem;
1094
1095 newItem->nextSibling = sibling->nextSibling;
1096 sibling->nextSibling = newItem;
1097 }
1098 else
1099 newItem->nextSibling = NULL;
1100
1101 newItem->prevSibling = sibling;
1102
1103 if (parent->lastChild == sibling)
1104 parent->lastChild = newItem;
1105
1106 if (parent->firstChild == NULL)
1107 parent->firstChild = newItem;
1108 }
1109
1110 static BOOL
1111 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1112 const TVITEMEXW *tvItem, BOOL isW)
1113 {
1114 UINT callbackClear = 0;
1115 UINT callbackSet = 0;
1116
1117 TRACE("item %p\n", wineItem);
1118 /* Do this first in case it fails. */
1119 if (tvItem->mask & TVIF_TEXT)
1120 {
1121 wineItem->textWidth = 0; /* force width recalculation */
1122 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1123 {
1124 int len;
1125 LPWSTR newText;
1126 if (isW)
1127 len = lstrlenW(tvItem->pszText) + 1;
1128 else
1129 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1130
1131 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1132
1133 if (newText == NULL) return FALSE;
1134
1135 callbackClear |= TVIF_TEXT;
1136
1137 wineItem->pszText = newText;
1138 wineItem->cchTextMax = len;
1139 if (isW)
1140 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1141 else
1142 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1143 wineItem->pszText, len);
1144
1145 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1146 }
1147 else
1148 {
1149 callbackSet |= TVIF_TEXT;
1150
1151 wineItem->pszText = ReAlloc(wineItem->pszText,
1152 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1153 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1154 TRACE("setting callback, item %p\n", wineItem);
1155 }
1156 }
1157
1158 if (tvItem->mask & TVIF_CHILDREN)
1159 {
1160 wineItem->cChildren = tvItem->cChildren;
1161
1162 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1163 callbackSet |= TVIF_CHILDREN;
1164 else
1165 callbackClear |= TVIF_CHILDREN;
1166 }
1167
1168 if (tvItem->mask & TVIF_IMAGE)
1169 {
1170 wineItem->iImage = tvItem->iImage;
1171
1172 if (wineItem->iImage == I_IMAGECALLBACK)
1173 callbackSet |= TVIF_IMAGE;
1174 else
1175 callbackClear |= TVIF_IMAGE;
1176 }
1177
1178 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1179 {
1180 wineItem->iSelectedImage = tvItem->iSelectedImage;
1181
1182 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1183 callbackSet |= TVIF_SELECTEDIMAGE;
1184 else
1185 callbackClear |= TVIF_SELECTEDIMAGE;
1186 }
1187
1188 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1189 {
1190 wineItem->iExpandedImage = tvItem->iExpandedImage;
1191
1192 if (wineItem->iExpandedImage == I_IMAGECALLBACK)
1193 callbackSet |= TVIF_EXPANDEDIMAGE;
1194 else
1195 callbackClear |= TVIF_EXPANDEDIMAGE;
1196 }
1197
1198 if (tvItem->mask & TVIF_PARAM)
1199 wineItem->lParam = tvItem->lParam;
1200
1201 /* If the application sets TVIF_INTEGRAL without
1202 * supplying a TVITEMEX structure, it's toast. */
1203 if (tvItem->mask & TVIF_INTEGRAL)
1204 wineItem->iIntegral = tvItem->iIntegral;
1205
1206 if (tvItem->mask & TVIF_STATE)
1207 {
1208 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1209 tvItem->stateMask);
1210 wineItem->state &= ~tvItem->stateMask;
1211 wineItem->state |= (tvItem->state & tvItem->stateMask);
1212 }
1213
1214 if (tvItem->mask & TVIF_STATEEX)
1215 {
1216 FIXME("New extended state: %x\n", tvItem->uStateEx);
1217 }
1218
1219 wineItem->callbackMask |= callbackSet;
1220 wineItem->callbackMask &= ~callbackClear;
1221
1222 return TRUE;
1223 }
1224
1225 /* Note that the new item is pre-zeroed. */
1226 static LRESULT
1227 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1228 {
1229 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1230 HTREEITEM insertAfter;
1231 TREEVIEW_ITEM *newItem, *parentItem;
1232 BOOL bTextUpdated = FALSE;
1233
1234 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1235 {
1236 parentItem = infoPtr->root;
1237 }
1238 else
1239 {
1240 parentItem = ptdi->hParent;
1241
1242 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1243 {
1244 WARN("invalid parent %p\n", parentItem);
1245 return 0;
1246 }
1247 }
1248
1249 insertAfter = ptdi->hInsertAfter;
1250
1251 /* Validate this now for convenience. */
1252 switch ((DWORD_PTR)insertAfter)
1253 {
1254 case (DWORD_PTR)TVI_FIRST:
1255 case (DWORD_PTR)TVI_LAST:
1256 case (DWORD_PTR)TVI_SORT:
1257 break;
1258
1259 default:
1260 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1261 insertAfter->parent != parentItem)
1262 {
1263 WARN("invalid insert after %p\n", insertAfter);
1264 insertAfter = TVI_LAST;
1265 }
1266 }
1267
1268 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1269 (tvItem->mask & TVIF_TEXT)
1270 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1271 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1272 : "<no label>");
1273
1274 newItem = TREEVIEW_AllocateItem(infoPtr);
1275 if (newItem == NULL)
1276 return 0;
1277
1278 newItem->parent = parentItem;
1279 newItem->iIntegral = 1;
1280 newItem->visibleOrder = -1;
1281
1282 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1283 return 0;
1284
1285 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1286
1287 infoPtr->uNumItems++;
1288
1289 switch ((DWORD_PTR)insertAfter)
1290 {
1291 case (DWORD_PTR)TVI_FIRST:
1292 {
1293 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1294 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1295 if (infoPtr->firstVisible == originalFirst)
1296 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1297 }
1298 break;
1299
1300 case (DWORD_PTR)TVI_LAST:
1301 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1302 break;
1303
1304 /* hInsertAfter names a specific item we want to insert after */
1305 default:
1306 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1307 break;
1308
1309 case (DWORD_PTR)TVI_SORT:
1310 {
1311 TREEVIEW_ITEM *aChild;
1312 TREEVIEW_ITEM *previousChild = NULL;
1313 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1314 BOOL bItemInserted = FALSE;
1315
1316 aChild = parentItem->firstChild;
1317
1318 bTextUpdated = TRUE;
1319 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1320
1321 /* Iterate the parent children to see where we fit in */
1322 while (aChild != NULL)
1323 {
1324 INT comp;
1325
1326 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1327 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1328
1329 if (comp < 0) /* we are smaller than the current one */
1330 {
1331 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1332 if (infoPtr->firstVisible == originalFirst &&
1333 aChild == originalFirst)
1334 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1335 bItemInserted = TRUE;
1336 break;
1337 }
1338 else if (comp > 0) /* we are bigger than the current one */
1339 {
1340 previousChild = aChild;
1341
1342 /* This will help us to exit if there is no more sibling */
1343 aChild = (aChild->nextSibling == 0)
1344 ? NULL
1345 : aChild->nextSibling;
1346
1347 /* Look at the next item */
1348 continue;
1349 }
1350 else if (comp == 0)
1351 {
1352 /*
1353 * An item with this name is already existing, therefore,
1354 * we add after the one we found
1355 */
1356 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1357 bItemInserted = TRUE;
1358 break;
1359 }
1360 }
1361
1362 /*
1363 * we reach the end of the child list and the item has not
1364 * yet been inserted, therefore, insert it after the last child.
1365 */
1366 if ((!bItemInserted) && (aChild == NULL))
1367 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1368
1369 break;
1370 }
1371 }
1372
1373
1374 TRACE("new item %p; parent %p, mask %x\n", newItem,
1375 newItem->parent, tvItem->mask);
1376
1377 newItem->iLevel = newItem->parent->iLevel + 1;
1378
1379 if (newItem->parent->cChildren == 0)
1380 newItem->parent->cChildren = 1;
1381
1382 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1383 {
1384 if (STATEIMAGEINDEX(newItem->state) == 0)
1385 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1386 }
1387
1388 if (infoPtr->firstVisible == NULL)
1389 infoPtr->firstVisible = newItem;
1390
1391 TREEVIEW_VerifyTree(infoPtr);
1392
1393 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1394
1395 if (parentItem == infoPtr->root ||
1396 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1397 {
1398 TREEVIEW_ITEM *item;
1399 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1400
1401 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1402 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1403
1404 if (!bTextUpdated)
1405 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1406
1407 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1408 TREEVIEW_UpdateScrollBars(infoPtr);
1409 /*
1410 * if the item was inserted in a visible part of the tree,
1411 * invalidate it, as well as those after it
1412 */
1413 for (item = newItem;
1414 item != NULL;
1415 item = TREEVIEW_GetNextListItem(infoPtr, item))
1416 TREEVIEW_Invalidate(infoPtr, item);
1417 }
1418 else
1419 {
1420 /* refresh treeview if newItem is the first item inserted under parentItem */
1421 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1422 {
1423 /* parent got '+' - update it */
1424 TREEVIEW_Invalidate(infoPtr, parentItem);
1425 }
1426 }
1427
1428 return (LRESULT)newItem;
1429 }
1430
1431 /* Item Deletion ************************************************************/
1432 static void
1433 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1434
1435 static void
1436 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1437 {
1438 TREEVIEW_ITEM *kill = parentItem->firstChild;
1439
1440 while (kill != NULL)
1441 {
1442 TREEVIEW_ITEM *next = kill->nextSibling;
1443
1444 TREEVIEW_RemoveItem(infoPtr, kill);
1445
1446 kill = next;
1447 }
1448
1449 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1450 assert(parentItem->firstChild == NULL);
1451 assert(parentItem->lastChild == NULL);
1452 }
1453
1454 static void
1455 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1456 {
1457 TREEVIEW_ITEM *parentItem = item->parent;
1458
1459 assert(item != NULL);
1460 assert(item->parent != NULL); /* i.e. it must not be the root */
1461
1462 if (parentItem->firstChild == item)
1463 parentItem->firstChild = item->nextSibling;
1464
1465 if (parentItem->lastChild == item)
1466 parentItem->lastChild = item->prevSibling;
1467
1468 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1469 && parentItem->cChildren > 0)
1470 parentItem->cChildren = 0;
1471
1472 if (item->prevSibling)
1473 item->prevSibling->nextSibling = item->nextSibling;
1474
1475 if (item->nextSibling)
1476 item->nextSibling->prevSibling = item->prevSibling;
1477 }
1478
1479 static void
1480 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1481 {
1482 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1483
1484 if (wineItem->firstChild)
1485 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1486
1487 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1488 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1489
1490 TREEVIEW_UnlinkItem(wineItem);
1491
1492 infoPtr->uNumItems--;
1493
1494 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1495 Free(wineItem->pszText);
1496
1497 TREEVIEW_FreeItem(infoPtr, wineItem);
1498 }
1499
1500
1501 /* Empty out the tree. */
1502 static void
1503 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1504 {
1505 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1506
1507 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1508 }
1509
1510 static LRESULT
1511 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1512 {
1513 TREEVIEW_ITEM *newSelection = NULL;
1514 TREEVIEW_ITEM *newFirstVisible = NULL;
1515 TREEVIEW_ITEM *parent, *prev = NULL;
1516 BOOL visible = FALSE;
1517
1518 if (wineItem == TVI_ROOT || !wineItem)
1519 {
1520 TRACE("TVI_ROOT\n");
1521 parent = infoPtr->root;
1522 newSelection = NULL;
1523 visible = TRUE;
1524 TREEVIEW_RemoveTree(infoPtr);
1525 }
1526 else
1527 {
1528 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1529 return FALSE;
1530
1531 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1532 parent = wineItem->parent;
1533
1534 if (ISVISIBLE(wineItem))
1535 {
1536 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1537 visible = TRUE;
1538 }
1539
1540 if (infoPtr->selectedItem != NULL
1541 && (wineItem == infoPtr->selectedItem
1542 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1543 {
1544 if (wineItem->nextSibling)
1545 newSelection = wineItem->nextSibling;
1546 else if (wineItem->parent != infoPtr->root)
1547 newSelection = wineItem->parent;
1548 else
1549 newSelection = wineItem->prevSibling;
1550 TRACE("newSelection = %p\n", newSelection);
1551 }
1552
1553 if (infoPtr->firstVisible == wineItem)
1554 {
1555 if (wineItem->nextSibling)
1556 newFirstVisible = wineItem->nextSibling;
1557 else if (wineItem->prevSibling)
1558 newFirstVisible = wineItem->prevSibling;
1559 else if (wineItem->parent != infoPtr->root)
1560 newFirstVisible = wineItem->parent;
1561 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1562 }
1563 else
1564 newFirstVisible = infoPtr->firstVisible;
1565
1566 TREEVIEW_RemoveItem(infoPtr, wineItem);
1567 }
1568
1569 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1570 if (!infoPtr->selectedItem && newSelection)
1571 {
1572 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1573 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1574 }
1575
1576 /* Validate insertMark dropItem.
1577 * hotItem ??? - used for comparison only.
1578 */
1579 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1580 infoPtr->insertMarkItem = 0;
1581
1582 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1583 infoPtr->dropItem = 0;
1584
1585 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1586 newFirstVisible = infoPtr->root->firstChild;
1587
1588 TREEVIEW_VerifyTree(infoPtr);
1589
1590 if (!infoPtr->bRedraw) return TRUE;
1591
1592 if (visible)
1593 {
1594 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1595 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1596 TREEVIEW_UpdateScrollBars(infoPtr);
1597 TREEVIEW_Invalidate(infoPtr, NULL);
1598 }
1599 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1600 {
1601 /* parent lost '+/-' - update it */
1602 TREEVIEW_Invalidate(infoPtr, parent);
1603 }
1604
1605 return TRUE;
1606 }
1607
1608
1609 /* Get/Set Messages *********************************************************/
1610 static LRESULT
1611 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1612 {
1613 infoPtr->bRedraw = wParam ? TRUE : FALSE;
1614
1615 if (infoPtr->bRedraw)
1616 {
1617 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1618 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1619 TREEVIEW_UpdateScrollBars(infoPtr);
1620 TREEVIEW_Invalidate(infoPtr, NULL);
1621 }
1622 return 0;
1623 }
1624
1625 static LRESULT
1626 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1627 {
1628 TRACE("\n");
1629 return infoPtr->uIndent;
1630 }
1631
1632 static LRESULT
1633 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1634 {
1635 TRACE("\n");
1636
1637 if (newIndent < MINIMUM_INDENT)
1638 newIndent = MINIMUM_INDENT;
1639
1640 if (infoPtr->uIndent != newIndent)
1641 {
1642 infoPtr->uIndent = newIndent;
1643 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1644 TREEVIEW_UpdateScrollBars(infoPtr);
1645 TREEVIEW_Invalidate(infoPtr, NULL);
1646 }
1647
1648 return 0;
1649 }
1650
1651
1652 static LRESULT
1653 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1654 {
1655 TRACE("\n");
1656 return (LRESULT)infoPtr->hwndToolTip;
1657 }
1658
1659 static LRESULT
1660 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1661 {
1662 HWND prevToolTip;
1663
1664 TRACE("\n");
1665 prevToolTip = infoPtr->hwndToolTip;
1666 infoPtr->hwndToolTip = hwndTT;
1667
1668 return (LRESULT)prevToolTip;
1669 }
1670
1671 static LRESULT
1672 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1673 {
1674 BOOL rc = infoPtr->bNtfUnicode;
1675 infoPtr->bNtfUnicode = fUnicode;
1676 return rc;
1677 }
1678
1679 static LRESULT
1680 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1681 {
1682 return infoPtr->bNtfUnicode;
1683 }
1684
1685 static LRESULT
1686 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1687 {
1688 return infoPtr->uScrollTime;
1689 }
1690
1691 static LRESULT
1692 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1693 {
1694 UINT uOldScrollTime = infoPtr->uScrollTime;
1695
1696 infoPtr->uScrollTime = min(uScrollTime, 100);
1697
1698 return uOldScrollTime;
1699 }
1700
1701
1702 static LRESULT
1703 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1704 {
1705 TRACE("\n");
1706
1707 switch (wParam)
1708 {
1709 case TVSIL_NORMAL:
1710 return (LRESULT)infoPtr->himlNormal;
1711
1712 case TVSIL_STATE:
1713 return (LRESULT)infoPtr->himlState;
1714
1715 default:
1716 return 0;
1717 }
1718 }
1719
1720 #define TVHEIGHT_MIN 16
1721 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1722
1723 /* Compute the natural height for items. */
1724 static UINT
1725 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1726 {
1727 TEXTMETRICW tm;
1728 HDC hdc = GetDC(0);
1729 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1730 UINT height;
1731
1732 /* Height is the maximum of:
1733 * 16 (a hack because our fonts are tiny), and
1734 * The text height + border & margin, and
1735 * The size of the normal image list
1736 */
1737 GetTextMetricsW(hdc, &tm);
1738 SelectObject(hdc, hOldFont);
1739 ReleaseDC(0, hdc);
1740
1741 height = TVHEIGHT_MIN;
1742 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1743 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1744 if (height < infoPtr->normalImageHeight)
1745 height = infoPtr->normalImageHeight;
1746
1747 /* Round down, unless we support odd ("non even") heights. */
1748 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1749 height &= ~1;
1750
1751 return height;
1752 }
1753
1754 static LRESULT
1755 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1756 {
1757 HIMAGELIST himlOld = 0;
1758 int oldWidth = infoPtr->normalImageWidth;
1759 int oldHeight = infoPtr->normalImageHeight;
1760
1761
1762 TRACE("%lx,%p\n", wParam, himlNew);
1763
1764 switch (wParam)
1765 {
1766 case TVSIL_NORMAL:
1767 himlOld = infoPtr->himlNormal;
1768 infoPtr->himlNormal = himlNew;
1769
1770 if (himlNew != NULL)
1771 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1772 &infoPtr->normalImageHeight);
1773 else
1774 {
1775 infoPtr->normalImageWidth = 0;
1776 infoPtr->normalImageHeight = 0;
1777 }
1778
1779 break;
1780
1781 case TVSIL_STATE:
1782 himlOld = infoPtr->himlState;
1783 infoPtr->himlState = himlNew;
1784
1785 if (himlNew != NULL)
1786 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1787 &infoPtr->stateImageHeight);
1788 else
1789 {
1790 infoPtr->stateImageWidth = 0;
1791 infoPtr->stateImageHeight = 0;
1792 }
1793
1794 break;
1795 }
1796
1797 if (oldWidth != infoPtr->normalImageWidth ||
1798 oldHeight != infoPtr->normalImageHeight)
1799 {
1800 BOOL bRecalcVisible = FALSE;
1801
1802 if (oldHeight != infoPtr->normalImageHeight &&
1803 !infoPtr->bHeightSet)
1804 {
1805 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1806 bRecalcVisible = TRUE;
1807 }
1808
1809 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1810 infoPtr->normalImageWidth != infoPtr->uIndent)
1811 {
1812 infoPtr->uIndent = infoPtr->normalImageWidth;
1813 bRecalcVisible = TRUE;
1814 }
1815
1816 if (bRecalcVisible)
1817 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1818
1819 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1820 TREEVIEW_UpdateScrollBars(infoPtr);
1821 }
1822
1823 TREEVIEW_Invalidate(infoPtr, NULL);
1824
1825 return (LRESULT)himlOld;
1826 }
1827
1828 static LRESULT
1829 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1830 {
1831 INT prevHeight = infoPtr->uItemHeight;
1832
1833 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1834 if (newHeight == -1)
1835 {
1836 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1837 infoPtr->bHeightSet = FALSE;
1838 }
1839 else
1840 {
1841 if (newHeight == 0) newHeight = 1;
1842 infoPtr->uItemHeight = newHeight;
1843 infoPtr->bHeightSet = TRUE;
1844 }
1845
1846 /* Round down, unless we support odd ("non even") heights. */
1847 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1848 {
1849 infoPtr->uItemHeight &= ~1;
1850 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1851 }
1852
1853 if (infoPtr->uItemHeight != prevHeight)
1854 {
1855 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1856 TREEVIEW_UpdateScrollBars(infoPtr);
1857 TREEVIEW_Invalidate(infoPtr, NULL);
1858 }
1859
1860 return prevHeight;
1861 }
1862
1863 static LRESULT
1864 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1865 {
1866 TRACE("\n");
1867 return infoPtr->uItemHeight;
1868 }
1869
1870
1871 static LRESULT
1872 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1873 {
1874 TRACE("%p\n", infoPtr->hFont);
1875 return (LRESULT)infoPtr->hFont;
1876 }
1877
1878
1879 static INT CALLBACK
1880 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1881 {
1882 (void)unused;
1883
1884 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1885
1886 return 1;
1887 }
1888
1889 static LRESULT
1890 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1891 {
1892 UINT uHeight = infoPtr->uItemHeight;
1893
1894 TRACE("%p %i\n", hFont, bRedraw);
1895
1896 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1897
1898 DeleteObject(infoPtr->hBoldFont);
1899 DeleteObject(infoPtr->hUnderlineFont);
1900 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1901 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1902
1903 if (!infoPtr->bHeightSet)
1904 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1905
1906 if (uHeight != infoPtr->uItemHeight)
1907 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1908
1909 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1910
1911 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1912 TREEVIEW_UpdateScrollBars(infoPtr);
1913
1914 if (bRedraw)
1915 TREEVIEW_Invalidate(infoPtr, NULL);
1916
1917 return 0;
1918 }
1919
1920
1921 static LRESULT
1922 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1923 {
1924 TRACE("\n");
1925 return (LRESULT)infoPtr->clrLine;
1926 }
1927
1928 static LRESULT
1929 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1930 {
1931 COLORREF prevColor = infoPtr->clrLine;
1932
1933 TRACE("\n");
1934 infoPtr->clrLine = color;
1935 return (LRESULT)prevColor;
1936 }
1937
1938
1939 static LRESULT
1940 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1941 {
1942 TRACE("\n");
1943 return (LRESULT)infoPtr->clrText;
1944 }
1945
1946 static LRESULT
1947 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1948 {
1949 COLORREF prevColor = infoPtr->clrText;
1950
1951 TRACE("\n");
1952 infoPtr->clrText = color;
1953
1954 if (infoPtr->clrText != prevColor)
1955 TREEVIEW_Invalidate(infoPtr, NULL);
1956
1957 return (LRESULT)prevColor;
1958 }
1959
1960
1961 static LRESULT
1962 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1963 {
1964 TRACE("\n");
1965 return (LRESULT)infoPtr->clrBk;
1966 }
1967
1968 static LRESULT
1969 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1970 {
1971 COLORREF prevColor = infoPtr->clrBk;
1972
1973 TRACE("\n");
1974 infoPtr->clrBk = newColor;
1975
1976 if (newColor != prevColor)
1977 TREEVIEW_Invalidate(infoPtr, NULL);
1978
1979 return (LRESULT)prevColor;
1980 }
1981
1982
1983 static LRESULT
1984 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1985 {
1986 TRACE("\n");
1987 return (LRESULT)infoPtr->clrInsertMark;
1988 }
1989
1990 static LRESULT
1991 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1992 {
1993 COLORREF prevColor = infoPtr->clrInsertMark;
1994
1995 TRACE("%x\n", color);
1996 infoPtr->clrInsertMark = color;
1997
1998 return (LRESULT)prevColor;
1999 }
2000
2001
2002 static LRESULT
2003 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2004 {
2005 TRACE("%d %p\n", wParam, item);
2006
2007 if (!TREEVIEW_ValidItem(infoPtr, item))
2008 return 0;
2009
2010 infoPtr->insertBeforeorAfter = wParam;
2011 infoPtr->insertMarkItem = item;
2012
2013 TREEVIEW_Invalidate(infoPtr, NULL);
2014
2015 return 1;
2016 }
2017
2018
2019 /************************************************************************
2020 * Some serious braindamage here. lParam is a pointer to both the
2021 * input HTREEITEM and the output RECT.
2022 */
2023 static LRESULT
2024 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2025 {
2026 TREEVIEW_ITEM *wineItem;
2027 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2028
2029 TRACE("\n");
2030 /*
2031 * validate parameters
2032 */
2033 if (pItem == NULL)
2034 return FALSE;
2035
2036 wineItem = *pItem;
2037 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2038 return FALSE;
2039
2040 /*
2041 * If wParam is TRUE return the text size otherwise return
2042 * the whole item size
2043 */
2044 if (fTextRect)
2045 {
2046 /* Windows does not send TVN_GETDISPINFO here. */
2047
2048 lpRect->top = wineItem->rect.top;
2049 lpRect->bottom = wineItem->rect.bottom;
2050
2051 lpRect->left = wineItem->textOffset;
2052 if (!wineItem->textWidth)
2053 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2054
2055 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2056 }
2057 else
2058 {
2059 *lpRect = wineItem->rect;
2060 }
2061
2062 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2063
2064 return TRUE;
2065 }
2066
2067 static inline LRESULT
2068 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2069 {
2070 /* Surprise! This does not take integral height into account. */
2071 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2072 return infoPtr->clientHeight / infoPtr->uItemHeight;
2073 }
2074
2075
2076 static LRESULT
2077 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2078 {
2079 TREEVIEW_ITEM *wineItem;
2080
2081 wineItem = tvItem->hItem;
2082 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2083 return FALSE;
2084
2085 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2086
2087 if (tvItem->mask & TVIF_CHILDREN)
2088 {
2089 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2090 FIXME("I_CHILDRENCALLBACK not supported\n");
2091 tvItem->cChildren = wineItem->cChildren;
2092 }
2093
2094 if (tvItem->mask & TVIF_HANDLE)
2095 tvItem->hItem = wineItem;
2096
2097 if (tvItem->mask & TVIF_IMAGE)
2098 tvItem->iImage = wineItem->iImage;
2099
2100 if (tvItem->mask & TVIF_INTEGRAL)
2101 tvItem->iIntegral = wineItem->iIntegral;
2102
2103 /* undocumented: windows ignores TVIF_PARAM and
2104 * * always sets lParam
2105 */
2106 tvItem->lParam = wineItem->lParam;
2107
2108 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2109 tvItem->iSelectedImage = wineItem->iSelectedImage;
2110
2111 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2112 tvItem->iExpandedImage = wineItem->iExpandedImage;
2113
2114 if (tvItem->mask & TVIF_STATE)
2115 /* Careful here - Windows ignores the stateMask when you get the state
2116 That contradicts the documentation, but makes more common sense, masking
2117 retrieval in this way seems overkill */
2118 tvItem->state = wineItem->state;
2119
2120 if (tvItem->mask & TVIF_TEXT)
2121 {
2122 if (wineItem->pszText == NULL)
2123 {
2124 if (tvItem->cchTextMax > 0)
2125 tvItem->pszText[0] = '\0';
2126 }
2127 else if (isW)
2128 {
2129 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2130 {
2131 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2132 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2133 }
2134 else
2135 {
2136 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2137 }
2138 }
2139 else
2140 {
2141 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2142 {
2143 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2144 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2145 }
2146 else
2147 {
2148 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2149 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2150 }
2151 }
2152 }
2153
2154 if (tvItem->mask & TVIF_STATEEX)
2155 {
2156 FIXME("Extended item state not supported, returning 0.\n");
2157 tvItem->uStateEx = 0;
2158 }
2159
2160 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2161 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2162
2163 return TRUE;
2164 }
2165
2166 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2167 * which is wrong. */
2168 static LRESULT
2169 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2170 {
2171 TREEVIEW_ITEM *wineItem;
2172 TREEVIEW_ITEM originalItem;
2173
2174 wineItem = tvItem->hItem;
2175
2176 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2177 tvItem->mask);
2178
2179 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2180 return FALSE;
2181
2182 /* store the original item values */
2183 originalItem = *wineItem;
2184
2185 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2186 return FALSE;
2187
2188 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2189 if ((tvItem->mask & TVIF_TEXT
2190 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2191 && ISVISIBLE(wineItem))
2192 {
2193 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2194 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2195 }
2196
2197 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2198 {
2199 /* The refresh updates everything, but we can't wait until then. */
2200 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2201
2202 /* if any of the item's values changed and it's not a callback, redraw the item */
2203 if (item_changed(&originalItem, wineItem, tvItem))
2204 {
2205 if (tvItem->mask & TVIF_INTEGRAL)
2206 {
2207 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2208 TREEVIEW_UpdateScrollBars(infoPtr);
2209
2210 TREEVIEW_Invalidate(infoPtr, NULL);
2211 }
2212 else
2213 {
2214 TREEVIEW_UpdateScrollBars(infoPtr);
2215 TREEVIEW_Invalidate(infoPtr, wineItem);
2216 }
2217 }
2218 }
2219
2220 return TRUE;
2221 }
2222
2223 static LRESULT
2224 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2225 {
2226 TRACE("\n");
2227
2228 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2229 return 0;
2230
2231 return (wineItem->state & mask);
2232 }
2233
2234 static LRESULT
2235 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2236 {
2237 TREEVIEW_ITEM *retval;
2238
2239 retval = 0;
2240
2241 /* handle all the global data here */
2242 switch (which)
2243 {
2244 case TVGN_CHILD: /* Special case: child of 0 is root */
2245 if (wineItem)
2246 break;
2247 /* fall through */
2248 case TVGN_ROOT:
2249 retval = infoPtr->root->firstChild;
2250 break;
2251
2252 case TVGN_CARET:
2253 retval = infoPtr->selectedItem;
2254 break;
2255
2256 case TVGN_FIRSTVISIBLE:
2257 retval = infoPtr->firstVisible;
2258 break;
2259
2260 case TVGN_DROPHILITE:
2261 retval = infoPtr->dropItem;
2262 break;
2263
2264 case TVGN_LASTVISIBLE:
2265 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2266 break;
2267 }
2268
2269 if (retval)
2270 {
2271 TRACE("flags:%x, returns %p\n", which, retval);
2272 return (LRESULT)retval;
2273 }
2274
2275 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2276
2277 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2278 return FALSE;
2279
2280 switch (which)
2281 {
2282 case TVGN_NEXT:
2283 retval = wineItem->nextSibling;
2284 break;
2285 case TVGN_PREVIOUS:
2286 retval = wineItem->prevSibling;
2287 break;
2288 case TVGN_PARENT:
2289 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2290 break;
2291 case TVGN_CHILD:
2292 retval = wineItem->firstChild;
2293 break;
2294 case TVGN_NEXTVISIBLE:
2295 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2296 break;
2297 case TVGN_PREVIOUSVISIBLE:
2298 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2299 break;
2300 default:
2301 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2302 break;
2303 }
2304
2305 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2306 return (LRESULT)retval;
2307 }
2308
2309
2310 static LRESULT
2311 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2312 {
2313 TRACE(" %d\n", infoPtr->uNumItems);
2314 return (LRESULT)infoPtr->uNumItems;
2315 }
2316
2317 static VOID
2318 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2319 {
2320 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2321 {
2322 static const unsigned int state_table[] = { 0, 2, 1 };
2323
2324 unsigned int state;
2325
2326 state = STATEIMAGEINDEX(item->state);
2327 TRACE("state:%x\n", state);
2328 item->state &= ~TVIS_STATEIMAGEMASK;
2329
2330 if (state < 3)
2331 state = state_table[state];
2332
2333 item->state |= INDEXTOSTATEIMAGEMASK(state);
2334
2335 TRACE("state:%x\n", state);
2336 TREEVIEW_Invalidate(infoPtr, item);
2337 }
2338 }
2339
2340
2341 /* Painting *************************************************************/
2342
2343 /* Draw the lines and expand button for an item. Also draws one section
2344 * of the line from item's parent to item's parent's next sibling. */
2345 static void
2346 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2347 {
2348 LONG centerx, centery;
2349 BOOL lar = ((infoPtr->dwStyle
2350 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2351 > TVS_LINESATROOT);
2352 HBRUSH hbr, hbrOld;
2353 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2354
2355 if (!lar && item->iLevel == 0)
2356 return;
2357
2358 hbr = CreateSolidBrush(clrBk);
2359 hbrOld = SelectObject(hdc, hbr);
2360
2361 centerx = (item->linesOffset + item->stateOffset) / 2;
2362 centery = (item->rect.top + item->rect.bottom) / 2;
2363
2364 if (infoPtr->dwStyle & TVS_HASLINES)
2365 {
2366 HPEN hOldPen, hNewPen;
2367 HTREEITEM parent;
2368 LOGBRUSH lb;
2369
2370 /* Get a dotted grey pen */
2371 lb.lbStyle = BS_SOLID;
2372 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2373 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2374 hOldPen = SelectObject(hdc, hNewPen);
2375
2376 /* Make sure the center is on a dot (using +2 instead
2377 * of +1 gives us pixel-by-pixel compat with native) */
2378 centery = (centery + 2) & ~1;
2379
2380 MoveToEx(hdc, item->stateOffset, centery, NULL);
2381 LineTo(hdc, centerx - 1, centery);
2382
2383 if (item->prevSibling || item->parent != infoPtr->root)
2384 {
2385 MoveToEx(hdc, centerx, item->rect.top, NULL);
2386 LineTo(hdc, centerx, centery);
2387 }
2388
2389 if (item->nextSibling)
2390 {
2391 MoveToEx(hdc, centerx, centery, NULL);
2392 LineTo(hdc, centerx, item->rect.bottom + 1);
2393 }
2394
2395 /* Draw the line from our parent to its next sibling. */
2396 parent = item->parent;
2397 while (parent != infoPtr->root)
2398 {
2399 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2400
2401 if (parent->nextSibling
2402 /* skip top-levels unless TVS_LINESATROOT */
2403 && parent->stateOffset > parent->linesOffset)
2404 {
2405 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2406 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2407 }
2408
2409 parent = parent->parent;
2410 }
2411
2412 SelectObject(hdc, hOldPen);
2413 DeleteObject(hNewPen);
2414 }
2415
2416 /*
2417 * Display the (+/-) signs
2418 */
2419
2420 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2421 {
2422 if (item->cChildren)
2423 {
2424 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2425 if (theme)
2426 {
2427 RECT glyphRect = item->rect;
2428 glyphRect.left = item->linesOffset;
2429 glyphRect.right = item->stateOffset;
2430 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2431 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2432 &glyphRect, NULL);
2433 }
2434 else
2435 {
2436 LONG height = item->rect.bottom - item->rect.top;
2437 LONG width = item->stateOffset - item->linesOffset;
2438 LONG rectsize = min(height, width) / 4;
2439 /* plussize = ceil(rectsize * 3/4) */
2440 LONG plussize = (rectsize + 1) * 3 / 4;
2441
2442 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2443 HPEN old_pen = SelectObject(hdc, new_pen);
2444
2445 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2446 centerx + rectsize + 2, centery + rectsize + 2);
2447
2448 SelectObject(hdc, old_pen);
2449 DeleteObject(new_pen);
2450
2451 /* draw +/- signs with current text color */
2452 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2453 old_pen = SelectObject(hdc, new_pen);
2454
2455 if (height < 18 || width < 18)
2456 {
2457 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2458 LineTo(hdc, centerx + plussize, centery);
2459
2460 if (!(item->state & TVIS_EXPANDED))
2461 {
2462 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2463 LineTo(hdc, centerx, centery + plussize);
2464 }
2465 }
2466 else
2467 {
2468 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2469 centerx + plussize, centery + 2);
2470
2471 if (!(item->state & TVIS_EXPANDED))
2472 {
2473 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2474 centerx + 2, centery + plussize);
2475 SetPixel(hdc, centerx - 1, centery, clrBk);
2476 SetPixel(hdc, centerx + 1, centery, clrBk);
2477 }
2478 }
2479
2480 SelectObject(hdc, old_pen);
2481 DeleteObject(new_pen);
2482 }
2483 }
2484 }
2485 SelectObject(hdc, hbrOld);
2486 DeleteObject(hbr);
2487 }
2488
2489 static void
2490 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2491 {
2492 INT cditem;
2493 HFONT hOldFont;
2494 COLORREF oldTextColor, oldTextBkColor;
2495 int centery;
2496 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2497 NMTVCUSTOMDRAW nmcdhdr;
2498
2499 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2500
2501 /* - If item is drop target or it is selected and window is in focus -
2502 * use blue background (COLOR_HIGHLIGHT).
2503 * - If item is selected, window is not in focus, but it has style
2504 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2505 * - Otherwise - use background color
2506 */
2507 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2508 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2509 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2510 {
2511 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2512 {
2513 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2514 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2515 }
2516 else
2517 {
2518 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2519 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2520 }
2521 }
2522 else
2523 {
2524 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2525 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2526 nmcdhdr.clrText = comctl32_color.clrHighlight;
2527 else
2528 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2529 }
2530
2531 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2532
2533 /* The custom draw handler can query the text rectangle,
2534 * so get ready. */
2535 /* should already be known, set to 0 when changed */
2536 if (!wineItem->textWidth)
2537 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2538
2539 cditem = 0;
2540
2541 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2542 {
2543 cditem = TREEVIEW_SendCustomDrawItemNotify
2544 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2545 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2546
2547 if (cditem & CDRF_SKIPDEFAULT)
2548 {
2549 SelectObject(hdc, hOldFont);
2550 return;
2551 }
2552 }
2553
2554 if (cditem & CDRF_NEWFONT)
2555 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2556
2557 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2558
2559 /* Set colors. Custom draw handler can change these so we do this after it. */
2560 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2561 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2562
2563 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2564
2565 /*
2566 * Display the images associated with this item
2567 */
2568 {
2569 INT imageIndex;
2570
2571 /* State images are displayed to the left of the Normal image
2572 * image number is in state; zero should be `display no image'.
2573 */
2574 imageIndex = STATEIMAGEINDEX(wineItem->state);
2575
2576 if (infoPtr->himlState && imageIndex)
2577 {
2578 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2579 wineItem->stateOffset,
2580 centery - infoPtr->stateImageHeight / 2,
2581 ILD_NORMAL);
2582 }
2583
2584 /* Now, draw the normal image; can be either selected,
2585 * non-selected or expanded image.
2586 */
2587
2588 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2589 {
2590 /* The item is currently selected */
2591 imageIndex = wineItem->iSelectedImage;
2592 }
2593 else if ((wineItem->state & TVIS_EXPANDED) && (wineItem->iExpandedImage != (WORD)I_IMAGENONE))
2594 {
2595 /* The item is currently not selected but expanded */
2596 imageIndex = wineItem->iExpandedImage;
2597 }
2598 else
2599 {
2600 /* The item is not selected and not expanded */
2601 imageIndex = wineItem->iImage;
2602 }
2603
2604 if (infoPtr->himlNormal)
2605 {
2606 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2607
2608 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2609 wineItem->imageOffset,
2610 centery - infoPtr->normalImageHeight / 2,
2611 ILD_NORMAL | ovlIdx);
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 != wineItem))
2622 {
2623 if (wineItem->pszText)
2624 {
2625 RECT rcText;
2626
2627 rcText.top = wineItem->rect.top;
2628 rcText.bottom = wineItem->rect.bottom;
2629 rcText.left = wineItem->textOffset;
2630 rcText.right = rcText.left + wineItem->textWidth + 4;
2631
2632 TRACE("drawing text %s at (%s)\n",
2633 debugstr_w(wineItem->pszText), wine_dbgstr_rect(&rcText));
2634
2635 /* Draw it */
2636 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2637 ETO_CLIPPED | ETO_OPAQUE,
2638 &rcText,
2639 wineItem->pszText,
2640 lstrlenW(wineItem->pszText),
2641 NULL);
2642
2643 /* Draw the box around the selected item */
2644 if ((wineItem == infoPtr->selectedItem) && inFocus)
2645 {
2646 DrawFocusRect(hdc,&rcText);
2647 }
2648
2649 }
2650 }
2651
2652 /* Draw insertion mark if necessary */
2653
2654 if (infoPtr->insertMarkItem)
2655 TRACE("item:%d,mark:%p\n",
2656 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2657 infoPtr->insertMarkItem);
2658
2659 if (wineItem == infoPtr->insertMarkItem)
2660 {
2661 HPEN hNewPen, hOldPen;
2662 int offset;
2663 int left, right;
2664
2665 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2666 hOldPen = SelectObject(hdc, hNewPen);
2667
2668 if (infoPtr->insertBeforeorAfter)
2669 offset = wineItem->rect.bottom - 1;
2670 else
2671 offset = wineItem->rect.top + 1;
2672
2673 left = wineItem->textOffset - 2;
2674 right = wineItem->textOffset + wineItem->textWidth + 2;
2675
2676 MoveToEx(hdc, left, offset - 3, NULL);
2677 LineTo(hdc, left, offset + 4);
2678
2679 MoveToEx(hdc, left, offset, NULL);
2680 LineTo(hdc, right + 1, offset);
2681
2682 MoveToEx(hdc, right, offset + 3, NULL);
2683 LineTo(hdc, right, offset - 4);
2684
2685 SelectObject(hdc, hOldPen);
2686 DeleteObject(hNewPen);
2687 }
2688
2689 if (cditem & CDRF_NOTIFYPOSTPAINT)
2690 {
2691 cditem = TREEVIEW_SendCustomDrawItemNotify
2692 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2693 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2694 }
2695
2696 /* Restore the hdc state */
2697 SetTextColor(hdc, oldTextColor);
2698 SetBkColor(hdc, oldTextBkColor);
2699 SelectObject(hdc, hOldFont);
2700 }
2701
2702 /* Computes treeHeight and treeWidth and updates the scroll bars.
2703 */
2704 static void
2705 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2706 {
2707 TREEVIEW_ITEM *wineItem;
2708 HWND hwnd = infoPtr->hwnd;
2709 BOOL vert = FALSE;
2710 BOOL horz = FALSE;
2711 SCROLLINFO si;
2712 LONG scrollX = infoPtr->scrollX;
2713
2714 infoPtr->treeWidth = 0;
2715 infoPtr->treeHeight = 0;
2716
2717 /* We iterate through all visible items in order to get the tree height
2718 * and width */
2719 wineItem = infoPtr->root->firstChild;
2720
2721 while (wineItem != NULL)
2722 {
2723 if (ISVISIBLE(wineItem))
2724 {
2725 /* actually we draw text at textOffset + 2 */
2726 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2727 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2728
2729 /* This is scroll-adjusted, but we fix this below. */
2730 infoPtr->treeHeight = wineItem->rect.bottom;
2731 }
2732
2733 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2734 }
2735
2736 /* Fix the scroll adjusted treeHeight and treeWidth. */
2737 if (infoPtr->root->firstChild)
2738 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2739
2740 infoPtr->treeWidth += infoPtr->scrollX;
2741
2742 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2743
2744 /* Adding one scroll bar may take up enough space that it forces us
2745 * to add the other as well. */
2746 if (infoPtr->treeHeight > infoPtr->clientHeight)
2747 {
2748 vert = TRUE;
2749
2750 if (infoPtr->treeWidth
2751 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2752 horz = TRUE;
2753 }
2754 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2755 horz = TRUE;
2756
2757 if (!vert && horz && infoPtr->treeHeight
2758 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2759 vert = TRUE;
2760
2761 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2762
2763 si.cbSize = sizeof(SCROLLINFO);
2764 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2765 si.nMin = 0;
2766
2767 if (vert)
2768 {
2769 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2770 if ( si.nPage && NULL != infoPtr->firstVisible)
2771 {
2772 si.nPos = infoPtr->firstVisible->visibleOrder;
2773 si.nMax = infoPtr->maxVisibleOrder - 1;
2774
2775 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2776
2777 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2778 ShowScrollBar(hwnd, SB_VERT, TRUE);
2779 infoPtr->uInternalStatus |= TV_VSCROLL;
2780 }
2781 else
2782 {
2783 if (infoPtr->uInternalStatus & TV_VSCROLL)
2784 ShowScrollBar(hwnd, SB_VERT, FALSE);
2785 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2786 }
2787 }
2788 else
2789 {
2790 if (infoPtr->uInternalStatus & TV_VSCROLL)
2791 ShowScrollBar(hwnd, SB_VERT, FALSE);
2792 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2793 }
2794
2795 if (horz)
2796 {
2797 si.nPage = infoPtr->clientWidth;
2798 si.nPos = infoPtr->scrollX;
2799 si.nMax = infoPtr->treeWidth - 1;
2800
2801 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2802 {
2803 si.nPos = si.nMax - max( si.nPage-1, 0 );
2804 scrollX = si.nPos;
2805 }
2806
2807 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2808 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2809 infoPtr->uInternalStatus |= TV_HSCROLL;
2810
2811 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2812 TREEVIEW_HScroll(infoPtr,
2813 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2814 }
2815 else
2816 {
2817 if (infoPtr->uInternalStatus & TV_HSCROLL)
2818 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2819 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2820
2821 scrollX = 0;
2822 if (infoPtr->scrollX != 0)
2823 {
2824 TREEVIEW_HScroll(infoPtr,
2825 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2826 }
2827 }
2828
2829 if (!horz)
2830 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2831 }
2832
2833 static void
2834 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2835 {
2836 HBRUSH hBrush;
2837 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2838
2839 hBrush = CreateSolidBrush(clrBk);
2840 FillRect(hdc, rc, hBrush);
2841 DeleteObject(hBrush);
2842 }
2843
2844 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2845 static LRESULT
2846 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2847 {
2848 RECT rect;
2849
2850 TRACE("%p\n", infoPtr);
2851
2852 GetClientRect(infoPtr->hwnd, &rect);
2853 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2854
2855 return 1;
2856 }
2857
2858 static void
2859 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2860 {
2861 HWND hwnd = infoPtr->hwnd;
2862 RECT rect = *rc;
2863 TREEVIEW_ITEM *wineItem;
2864
2865 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2866 {
2867 TRACE("empty window\n");
2868 return;
2869 }
2870
2871 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2872 hdc, rect);
2873
2874 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2875 {
2876 ReleaseDC(hwnd, hdc);
2877 return;
2878 }
2879
2880 for (wineItem = infoPtr->root->firstChild;
2881 wineItem != NULL;
2882 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2883 {
2884 if (ISVISIBLE(wineItem))
2885 {
2886 /* Avoid unneeded calculations */
2887 if (wineItem->rect.top > rect.bottom)
2888 break;
2889 if (wineItem->rect.bottom < rect.top)
2890 continue;
2891
2892 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2893 }
2894 }
2895
2896 TREEVIEW_UpdateScrollBars(infoPtr);
2897
2898 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2899 infoPtr->cdmode =
2900 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2901 }
2902
2903 static inline void
2904 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2905 {
2906 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2907 }
2908
2909 static void
2910 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2911 {
2912 if (item)
2913 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2914 else
2915 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2916 }
2917
2918 static LRESULT
2919 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
2920 {
2921 HDC hdc;
2922 PAINTSTRUCT ps;
2923 RECT rc;
2924
2925 TRACE("(%p %p)\n", infoPtr, hdc_ref);
2926
2927 if (hdc_ref)
2928 {
2929 hdc = hdc_ref;
2930 GetClientRect(infoPtr->hwnd, &rc);
2931 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2932 }
2933 else
2934 {
2935 hdc = BeginPaint(infoPtr->hwnd, &ps);
2936 rc = ps.rcPaint;
2937 if(ps.fErase)
2938 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
2939 }
2940
2941 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2942 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2943
2944 if (!hdc_ref)
2945 EndPaint(infoPtr->hwnd, &ps);
2946
2947 return 0;
2948 }
2949
2950 static LRESULT
2951 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
2952 {
2953 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
2954
2955 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
2956 return 0;
2957
2958 if (options & PRF_ERASEBKGND)
2959 TREEVIEW_EraseBackground(infoPtr, hdc);
2960
2961 if (options & PRF_CLIENT)
2962 {
2963 RECT rc;
2964 GetClientRect(infoPtr->hwnd, &rc);
2965 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2966 }
2967
2968 return 0;
2969 }
2970
2971 /* Sorting **************************************************************/
2972
2973 /***************************************************************************
2974 * Forward the DPA local callback to the treeview owner callback
2975 */
2976 static INT WINAPI
2977 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2978 const TVSORTCB *pCallBackSort)
2979 {
2980 /* Forward the call to the client-defined callback */
2981 return pCallBackSort->lpfnCompare(first->lParam,
2982 second->lParam,
2983 pCallBackSort->lParam);
2984 }
2985
2986 /***************************************************************************
2987 * Treeview native sort routine: sort on item text.
2988 */
2989 static INT WINAPI
2990 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2991 const TREEVIEW_INFO *infoPtr)
2992 {
2993 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2994 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2995
2996 if(first->pszText && second->pszText)
2997 return lstrcmpiW(first->pszText, second->pszText);
2998 else if(first->pszText)
2999 return -1;
3000 else if(second->pszText)
3001 return 1;
3002 else
3003 return 0;
3004 }
3005
3006 /* Returns the number of physical children belonging to item. */
3007 static INT
3008 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3009 {
3010 INT cChildren = 0;
3011 HTREEITEM hti;
3012
3013 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3014 cChildren++;
3015
3016 return cChildren;
3017 }
3018
3019 /* Returns a DPA containing a pointer to each physical child of item in
3020 * sibling order. If item has no children, an empty DPA is returned. */
3021 static HDPA
3022 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3023 {
3024 HTREEITEM child = item->firstChild;
3025
3026 HDPA list = DPA_Create(8);
3027 if (list == 0) return NULL;
3028
3029 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3030 {
3031 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3032 {
3033 DPA_Destroy(list);
3034 return NULL;
3035 }
3036 }
3037
3038 return list;
3039 }
3040
3041 /***************************************************************************
3042 * Setup the treeview structure with regards of the sort method
3043 * and sort the children of the TV item specified in lParam
3044 * fRecurse: currently unused. Should be zero.
3045 * parent: if pSort!=NULL, should equal pSort->hParent.
3046 * otherwise, item which child items are to be sorted.
3047 * pSort: sort method info. if NULL, sort on item text.
3048 * if non-NULL, sort on item's lParam content, and let the
3049 * application decide what that means. See also TVM_SORTCHILDRENCB.
3050 */
3051
3052 static LRESULT
3053 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3054 LPTVSORTCB pSort)
3055 {
3056 INT cChildren;
3057 PFNDPACOMPARE pfnCompare;
3058 LPARAM lpCompare;
3059
3060 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3061 if (parent == TVI_ROOT || parent == NULL)
3062 parent = infoPtr->root;
3063
3064 /* Check for a valid handle to the parent item */
3065 if (!TREEVIEW_ValidItem(infoPtr, parent))
3066 {
3067 ERR("invalid item hParent=%p\n", parent);
3068 return FALSE;
3069 }
3070
3071 if (pSort)
3072 {
3073 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3074 lpCompare = (LPARAM)pSort;
3075 }
3076 else
3077 {
3078 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3079 lpCompare = (LPARAM)infoPtr;
3080 }
3081
3082 cChildren = TREEVIEW_CountChildren(parent);
3083
3084 /* Make sure there is something to sort */
3085 if (cChildren > 1)
3086 {
3087 /* TREEVIEW_ITEM rechaining */
3088 INT count = 0;
3089 HTREEITEM item = 0;
3090 HTREEITEM nextItem = 0;
3091 HTREEITEM prevItem = 0;
3092
3093 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3094
3095 if (sortList == NULL)
3096 return FALSE;
3097
3098 /* let DPA sort the list */
3099 DPA_Sort(sortList, pfnCompare, lpCompare);
3100
3101 /* The order of DPA entries has been changed, so fixup the
3102 * nextSibling and prevSibling pointers. */
3103
3104 item = DPA_GetPtr(sortList, count++);
3105 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3106 {
3107 /* link the two current item together */
3108 item->nextSibling = nextItem;
3109 nextItem->prevSibling = item;
3110
3111 if (prevItem == NULL)
3112 {
3113 /* this is the first item, update the parent */
3114 parent->firstChild = item;
3115 item->prevSibling = NULL;
3116 }
3117 else
3118 {
3119 /* fix the back chaining */
3120 item->prevSibling = prevItem;
3121 }
3122
3123 /* get ready for the next one */
3124 prevItem = item;
3125 item = nextItem;
3126 }
3127
3128 /* the last item is pointed to by item and never has a sibling */
3129 item->nextSibling = NULL;
3130 parent->lastChild = item;
3131
3132 DPA_Destroy(sortList);
3133
3134 TREEVIEW_VerifyTree(infoPtr);
3135
3136 if (parent->state & TVIS_EXPANDED)
3137 {
3138 int visOrder = infoPtr->firstVisible->visibleOrder;
3139
3140 if (parent == infoPtr->root)
3141 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3142 else
3143 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3144
3145 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3146 {
3147 TREEVIEW_ITEM *item;
3148
3149 for (item = infoPtr->root->firstChild; item != NULL;
3150 item = TREEVIEW_GetNextListItem(infoPtr, item))
3151 {
3152 if (item->visibleOrder == visOrder)
3153 break;
3154 }
3155
3156 if (!item) item = parent->firstChild;
3157 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3158 }
3159
3160 TREEVIEW_Invalidate(infoPtr, NULL);
3161 }
3162
3163 return TRUE;
3164 }
3165 return FALSE;
3166 }
3167
3168
3169 /***************************************************************************
3170 * Setup the treeview structure with regards of the sort method
3171 * and sort the children of the TV item specified in lParam
3172 */
3173 static LRESULT
3174 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3175 {
3176 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3177 }
3178
3179
3180 /***************************************************************************
3181 * Sort the children of the TV item specified in lParam.
3182 */
3183 static LRESULT
3184 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3185 {
3186 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3187 }
3188
3189
3190 /* Expansion/Collapse ***************************************************/
3191
3192 static BOOL
3193 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3194 UINT action)
3195 {
3196 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3197 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3198 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3199 0, wineItem);
3200 }
3201
3202 static VOID
3203 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3204 UINT action)
3205 {
3206 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3207 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3208 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3209 0, wineItem);
3210 }
3211
3212
3213 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3214 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3215 static BOOL
3216 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3217 BOOL bRemoveChildren, BOOL bUser)
3218 {
3219 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3220 BOOL bSetSelection, bSetFirstVisible;
3221 RECT scrollRect;
3222 LONG scrollDist = 0;
3223 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3224
3225 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3226
3227 if (!(wineItem->state & TVIS_EXPANDED))
3228 return FALSE;
3229
3230 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3231 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3232
3233 if (wineItem->firstChild == NULL)
3234 return FALSE;
3235
3236 wineItem->state &= ~TVIS_EXPANDED;
3237
3238 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3239 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3240
3241 bSetSelection = (infoPtr->selectedItem != NULL
3242 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3243
3244 bSetFirstVisible = (infoPtr->firstVisible != NULL
3245 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3246
3247 tmpItem = wineItem;
3248 while (tmpItem)
3249 {
3250 if (tmpItem->nextSibling)
3251 {
3252 nextItem = tmpItem->nextSibling;
3253 break;
3254 }
3255 tmpItem = tmpItem->parent;
3256 }
3257
3258 if (nextItem)
3259 scrollDist = nextItem->rect.top;
3260
3261 if (bRemoveChildren)
3262 {
3263 INT old_cChildren = wineItem->cChildren;
3264 TRACE("TVE_COLLAPSERESET\n");
3265 wineItem->state &= ~TVIS_EXPANDEDONCE;
3266 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3267 wineItem->cChildren = old_cChildren;
3268 }
3269
3270 if (wineItem->firstChild)
3271 {
3272 TREEVIEW_ITEM *item, *sibling;
3273
3274 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3275
3276 for (item = wineItem->firstChild; item != sibling;
3277 item = TREEVIEW_GetNextListItem(infoPtr, item))
3278 {
3279 item->visibleOrder = -1;
3280 }
3281 }
3282
3283 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3284
3285 if (nextItem)
3286 scrollDist = -(scrollDist - nextItem->rect.top);
3287
3288 if (bSetSelection)
3289 {
3290 /* Don't call DoSelectItem, it sends notifications. */
3291 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3292 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3293 wineItem->state |= TVIS_SELECTED;
3294 infoPtr->selectedItem = wineItem;
3295 }
3296
3297 TREEVIEW_UpdateScrollBars(infoPtr);
3298
3299 scrollRect.left = 0;
3300 scrollRect.right = infoPtr->clientWidth;
3301 scrollRect.bottom = infoPtr->clientHeight;
3302
3303 if (nextItem)
3304 {
3305 scrollRect.top = nextItem->rect.top;
3306
3307 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3308 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3309 TREEVIEW_Invalidate(infoPtr, wineItem);
3310 } else {
3311 scrollRect.top = wineItem->rect.top;
3312 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3313 }
3314
3315 TREEVIEW_SetFirstVisible(infoPtr,
3316 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3317 TRUE);
3318
3319 return TRUE;
3320 }
3321
3322 static BOOL
3323 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3324 BOOL partial, BOOL user)
3325 {
3326 LONG scrollDist;
3327 LONG orgNextTop = 0;
3328 RECT scrollRect;
3329 TREEVIEW_ITEM *nextItem, *tmpItem;
3330 BOOL sendsNotifications;
3331
3332 TRACE("(%p, %p, partial=%d, %d\n", infoPtr, wineItem, partial, user);
3333
3334 if (wineItem->state & TVIS_EXPANDED)
3335 return TRUE;
3336
3337 tmpItem = wineItem; nextItem = NULL;
3338 while (tmpItem)
3339 {
3340 if (tmpItem->nextSibling)
3341 {
3342 nextItem = tmpItem->nextSibling;
3343 break;
3344 }
3345 tmpItem = tmpItem->parent;
3346 }
3347
3348 if (nextItem)
3349 orgNextTop = nextItem->rect.top;
3350
3351 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3352
3353 sendsNotifications = user || ((wineItem->cChildren != 0) &&
3354 !(wineItem->state & TVIS_EXPANDEDONCE));
3355 if (sendsNotifications)
3356 {
3357 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3358 {
3359 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3360 return FALSE;
3361 }
3362 }
3363 if (!wineItem->firstChild)
3364 return FALSE;
3365
3366 wineItem->state |= TVIS_EXPANDED;
3367
3368 if (partial)
3369 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3370
3371 if (ISVISIBLE(wineItem))
3372 {
3373 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3374 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3375 TREEVIEW_UpdateScrollBars(infoPtr);
3376
3377 scrollRect.left = 0;
3378 scrollRect.bottom = infoPtr->treeHeight;
3379 scrollRect.right = infoPtr->clientWidth;
3380 if (nextItem)
3381 {
3382 scrollDist = nextItem->rect.top - orgNextTop;
3383 scrollRect.top = orgNextTop;
3384
3385 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3386 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3387 TREEVIEW_Invalidate (infoPtr, wineItem);
3388 } else {
3389 scrollRect.top = wineItem->rect.top;
3390 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3391 }
3392
3393 /* Scroll up so that as many children as possible are visible.
3394 * This fails when expanding causes an HScroll bar to appear, but we
3395 * don't know that yet, so the last item is obscured. */
3396 if (wineItem->firstChild != NULL)
3397 {
3398 int nChildren = wineItem->lastChild->visibleOrder
3399 - wineItem->firstChild->visibleOrder + 1;
3400
3401 int visible_pos = wineItem->visibleOrder
3402 - infoPtr->firstVisible->visibleOrder;
3403
3404 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3405
3406 if (visible_pos > 0 && nChildren > rows_below)
3407 {
3408 int scroll = nChildren - rows_below;
3409
3410 if (scroll > visible_pos)
3411 scroll = visible_pos;
3412
3413 if (scroll > 0)
3414 {
3415 TREEVIEW_ITEM *newFirstVisible
3416 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3417 scroll);
3418
3419
3420 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3421 }
3422 }
3423 }
3424 }
3425
3426 if (sendsNotifications) {
3427 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3428 wineItem->state |= TVIS_EXPANDEDONCE;
3429 }
3430
3431 return TRUE;
3432 }
3433
3434 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3435 to mouse messages and TVM_SELECTITEM.
3436
3437 selection - previously selected item, used to collapse a part of a tree
3438 item - new selected item
3439 */
3440 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3441 HTREEITEM selection, HTREEITEM item)
3442 {
3443 TREEVIEW_ITEM *SelItem;
3444
3445 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3446
3447 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3448
3449 /*
3450 * Close the previous selection all the way to the root
3451 * as long as the new selection is not a child
3452 */
3453 if(selection && (selection != item))
3454 {
3455 BOOL closeit = TRUE;
3456 SelItem = item;
3457
3458 /* determine if the hitItem is a child of the currently selected item */
3459 while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3460 (SelItem->parent != infoPtr->root))
3461 {
3462 closeit = (SelItem != selection);
3463 SelItem = SelItem->parent;
3464 }
3465
3466 if(closeit)
3467 {
3468 if(TREEVIEW_ValidItem(infoPtr, selection))
3469 SelItem = selection;
3470
3471 while(SelItem && (SelItem != item) && TREEVIEW_ValidItem(infoPtr, SelItem) &&
3472 SelItem->parent != infoPtr->root)
3473 {
3474 TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
3475 SelItem = SelItem->parent;
3476 }
3477 }
3478 }
3479
3480 /*
3481 * Expand the current item
3482 */
3483 TREEVIEW_Expand(infoPtr, item, FALSE, FALSE);
3484 }
3485
3486 static BOOL
3487 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3488 {
3489 TRACE("\n");
3490
3491 if (wineItem->state & TVIS_EXPANDED)
3492 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3493 else
3494 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3495 }
3496
3497 static VOID
3498 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3499 {
3500 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3501
3502 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3503 {
3504 if (TREEVIEW_HasChildren(infoPtr, item))
3505 TREEVIEW_ExpandAll(infoPtr, item);
3506 }
3507 }
3508
3509 /* Note:If the specified item is the child of a collapsed parent item,
3510 the parent's list of child items is (recursively) expanded to reveal the
3511 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3512 know if it also applies here.
3513 */
3514
3515 static LRESULT
3516 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3517 {
3518 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3519 return 0;
3520
3521 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3522 TREEVIEW_ItemName(wineItem), TREEVIEW_GetItemIndex(infoPtr, wineItem),
3523 flag, wineItem->state);
3524
3525 switch (flag & TVE_TOGGLE)
3526 {
3527 case TVE_COLLAPSE:
3528 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3529 FALSE);
3530
3531 case TVE_EXPAND:
3532 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3533 FALSE);
3534
3535 case TVE_TOGGLE:
3536 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3537
3538 default:
3539 return 0;
3540 }
3541 }
3542
3543 /* Hit-Testing **********************************************************/
3544
3545 static TREEVIEW_ITEM *
3546 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3547 {
3548 TREEVIEW_ITEM *wineItem;
3549 LONG row;
3550
3551 if (!infoPtr->firstVisible)
3552 return NULL;
3553
3554 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3555
3556 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3557 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3558 {
3559 if (row >= wineItem->visibleOrder
3560 && row < wineItem->visibleOrder + wineItem->iIntegral)
3561 break;
3562 }
3563
3564 return wineItem;
3565 }
3566
3567 static LRESULT
3568 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3569 {
3570 TREEVIEW_ITEM *wineItem;
3571 RECT rect;
3572 UINT status;
3573 LONG x, y;
3574
3575 lpht->hItem = 0;
3576 GetClientRect(infoPtr->hwnd, &rect);
3577 status = 0;
3578 x = lpht->pt.x;
3579 y = lpht->pt.y;
3580
3581 if (x < rect.left)
3582 {
3583 status |= TVHT_TOLEFT;
3584 }
3585 else if (x > rect.right)
3586 {
3587 status |= TVHT_TORIGHT;
3588 }
3589
3590 if (y < rect.top)
3591 {
3592 status |= TVHT_ABOVE;
3593 }
3594 else if (y > rect.bottom)
3595 {
3596 status |= TVHT_BELOW;
3597 }
3598
3599 if (status)
3600 {
3601 lpht->flags = status;
3602 return 0;
3603 }
3604
3605 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3606 if (!wineItem)
3607 {
3608 lpht->flags = TVHT_NOWHERE;
3609 return 0;
3610 }
3611
3612 if (x >= wineItem->textOffset + wineItem->textWidth)
3613 {
3614 lpht->flags = TVHT_ONITEMRIGHT;
3615 }
3616 else if (x >= wineItem->textOffset)
3617 {
3618 lpht->flags = TVHT_ONITEMLABEL;
3619 }
3620 else if (x >= wineItem->imageOffset)
3621 {
3622 lpht->flags = TVHT_ONITEMICON;
3623 }
3624 else if (x >= wineItem->stateOffset)
3625 {
3626 lpht->flags = TVHT_ONITEMSTATEICON;
3627 }
3628 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3629 {
3630 lpht->flags = TVHT_ONITEMBUTTON;
3631 }
3632 else
3633 {
3634 lpht->flags = TVHT_ONITEMINDENT;
3635 }
3636
3637 lpht->hItem = wineItem;
3638 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3639
3640 return (LRESULT)wineItem;
3641 }
3642
3643 /* Item Label Editing ***************************************************/
3644
3645 static LRESULT
3646 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3647 {
3648 return (LRESULT)infoPtr->hwndEdit;
3649 }
3650
3651 static LRESULT CALLBACK
3652 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3653 {
3654 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3655 BOOL bCancel = FALSE;
3656 LRESULT rc;
3657
3658 switch (uMsg)
3659 {
3660 case WM_PAINT:
3661 TRACE("WM_PAINT start\n");
3662 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3663 lParam);
3664 TRACE("WM_PAINT done\n");
3665 return rc;
3666
3667 case WM_KILLFOCUS:
3668 if (infoPtr->bIgnoreEditKillFocus)
3669 return TRUE;
3670 break;
3671
3672 case WM_DESTROY:
3673 {
3674 WNDPROC editProc = infoPtr->wpEditOrig;
3675 infoPtr->wpEditOrig = 0;
3676 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3677 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3678 }
3679
3680 case WM_GETDLGCODE:
3681 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3682
3683 case WM_KEYDOWN:
3684 if (wParam == VK_ESCAPE)
3685 {
3686 bCancel = TRUE;
3687 break;
3688 }
3689 else if (wParam == VK_RETURN)
3690 {
3691 break;
3692 }
3693
3694 /* fall through */
3695 default:
3696 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3697 }
3698
3699 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3700 /* eg. Using a messagebox */
3701
3702 infoPtr->bIgnoreEditKillFocus = TRUE;
3703 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3704 infoPtr->bIgnoreEditKillFocus = FALSE;
3705
3706 return 0;
3707 }
3708
3709
3710 /* should handle edit control messages here */
3711
3712 static LRESULT
3713 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3714 {
3715 TRACE("code=%x, id=%x, handle=%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3716
3717 switch (HIWORD(wParam))
3718 {
3719 case EN_UPDATE:
3720 {
3721 /*
3722 * Adjust the edit window size
3723 */
3724 WCHAR buffer[1024];
3725 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3726 HDC hdc = GetDC(infoPtr->hwndEdit);
3727 SIZE sz;
3728 HFONT hFont, hOldFont = 0;
3729
3730 TRACE("edit=%p\n", infoPtr->hwndEdit);
3731
3732 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3733
3734 infoPtr->bLabelChanged = TRUE;
3735
3736 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3737
3738 /* Select font to get the right dimension of the string */
3739 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3740
3741 if (hFont != 0)
3742 {
3743 hOldFont = SelectObject(hdc, hFont);
3744 }
3745
3746 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3747 {
3748 TEXTMETRICW textMetric;
3749
3750 /* Add Extra spacing for the next character */
3751 GetTextMetricsW(hdc, &textMetric);
3752 sz.cx += (textMetric.tmMaxCharWidth * 2);
3753
3754 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3755 sz.cx = min(sz.cx,
3756 infoPtr->clientWidth - editItem->textOffset + 2);
3757
3758 SetWindowPos(infoPtr->hwndEdit,
3759 HWND_TOP,
3760 0,
3761 0,
3762 sz.cx,
3763 editItem->rect.bottom - editItem->rect.top + 3,
3764 SWP_NOMOVE | SWP_DRAWFRAME);
3765 }
3766
3767 if (hFont != 0)
3768 {
3769 SelectObject(hdc, hOldFont);
3770 }
3771
3772 ReleaseDC(infoPtr->hwnd, hdc);
3773 break;
3774 }
3775 case EN_KILLFOCUS:
3776 /* apparently we should respect passed handle value */
3777 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3778
3779 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3780 break;
3781
3782 default:
3783 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3784 }
3785
3786 return 0;
3787 }
3788
3789 static HWND
3790 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3791 {
3792 HWND hwnd = infoPtr->hwnd;
3793 HWND hwndEdit;
3794 SIZE sz;
3795 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3796 HDC hdc;
3797 HFONT hOldFont=0;
3798 TEXTMETRICW textMetric;
3799
3800 TRACE("%p %p\n", hwnd, hItem);
3801 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3802 return NULL;
3803
3804 if (infoPtr->hwndEdit)
3805 return infoPtr->hwndEdit;
3806
3807 infoPtr->bLabelChanged = FALSE;
3808
3809 /* make edit item visible */
3810 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3811
3812 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3813
3814 hdc = GetDC(hwnd);
3815 /* Select the font to get appropriate metric dimensions */
3816 if (infoPtr->hFont != 0)
3817 {
3818 hOldFont = SelectObject(hdc, infoPtr->hFont);
3819 }
3820
3821 /* Get string length in pixels */
3822 if (hItem->pszText)
3823 GetTextExtentPoint32W(hdc, hItem->pszText, strlenW(hItem->pszText),
3824 &sz);
3825 else
3826 GetTextExtentPoint32A(hdc, "", 0, &sz);
3827
3828 /* Add Extra spacing for the next character */
3829 GetTextMetricsW(hdc, &textMetric);
3830 sz.cx += (textMetric.tmMaxCharWidth * 2);
3831
3832 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3833 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3834
3835 if (infoPtr->hFont != 0)
3836 {
3837 SelectObject(hdc, hOldFont);
3838 }
3839
3840 ReleaseDC(hwnd, hdc);
3841
3842 infoPtr->editItem = hItem;
3843
3844 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3845 WC_EDITW,
3846 0,
3847 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3848 WS_CLIPSIBLINGS | ES_WANTRETURN |
3849 ES_LEFT, hItem->textOffset - 2,
3850 hItem->rect.top - 1, sz.cx + 3,
3851 hItem->rect.bottom -
3852 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3853 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3854
3855 infoPtr->hwndEdit = hwndEdit;
3856
3857 /* Get a 2D border. */
3858 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3859 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3860 SetWindowLongW(hwndEdit, GWL_STYLE,
3861 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3862
3863 SendMessageW(hwndEdit, WM_SETFONT,
3864 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3865
3866 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3867 (DWORD_PTR)
3868 TREEVIEW_Edit_SubclassProc);
3869
3870 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3871 {
3872 DestroyWindow(hwndEdit);
3873 infoPtr->hwndEdit = 0;
3874 infoPtr->editItem = NULL;
3875 return NULL;
3876 }
3877
3878 if (hItem->pszText)
3879 SetWindowTextW(hwndEdit, hItem->pszText);
3880
3881 SetFocus(hwndEdit);
3882 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
3883 ShowWindow(hwndEdit, SW_SHOW);
3884
3885 return hwndEdit;
3886 }
3887
3888
3889 static LRESULT
3890 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
3891 {
3892 HWND hwnd = infoPtr->hwnd;
3893 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
3894 NMTVDISPINFOW tvdi;
3895 BOOL bCommit;
3896 WCHAR tmpText[1024] = { '\0' };
3897 WCHAR *newText = tmpText;
3898 int iLength = 0;
3899
3900 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
3901
3902 tvdi.hdr.hwndFrom = hwnd;
3903 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
3904 tvdi.hdr.code = get_notifycode(infoPtr, TVN_ENDLABELEDITW);
3905 tvdi.item.mask = 0;
3906 tvdi.item.hItem = editedItem;
3907 tvdi.item.state = editedItem->state;
3908 tvdi.item.lParam = editedItem->lParam;
3909
3910 if (!bCancel)
3911 {
3912 if (!infoPtr->bNtfUnicode)
3913 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, 1023);
3914 else
3915 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, 1023);
3916
3917 if (iLength >= 1023)
3918 {
3919 ERR("Insufficient space to retrieve new item label\n");
3920 }
3921
3922 tvdi.item.mask = TVIF_TEXT;
3923 tvdi.item.pszText = tmpText;
3924 tvdi.item.cchTextMax = iLength + 1;
3925 }
3926 else
3927 {
3928 tvdi.item.pszText = NULL;
3929 tvdi.item.cchTextMax = 0;
3930 }
3931
3932 bCommit = TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, &tvdi.hdr);
3933
3934 if (!bCancel && bCommit) /* Apply the changes */
3935 {
3936 if (!infoPtr->bNtfUnicode)
3937 {
3938 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, NULL, 0 );
3939 newText = Alloc(len * sizeof(WCHAR));
3940 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tmpText, -1, newText, len );
3941 iLength = len - 1;
3942 }
3943
3944 if (strcmpW(newText, editedItem->pszText) != 0)
3945 {
3946 WCHAR *ptr = ReAlloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
3947 if (ptr == NULL)
3948 {
3949 ERR("OutOfMemory, cannot allocate space for label\n");
3950 if(newText != tmpText) Free(newText);
3951 DestroyWindow(infoPtr->hwndEdit);
3952 infoPtr->hwndEdit = 0;
3953 infoPtr->editItem = NULL;
3954 return FALSE;
3955 }
3956 else
3957 {
3958 editedItem->pszText = ptr;
3959 editedItem->cchTextMax = iLength + 1;
3960 strcpyW(editedItem->pszText, newText);
3961 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
3962 }
3963 }
3964 if(newText != tmpText) Free(newText);
3965 }
3966
3967 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
3968 DestroyWindow(infoPtr->hwndEdit);
3969 infoPtr->hwndEdit = 0;
3970 infoPtr->editItem = NULL;
3971 return TRUE;
3972 }
3973
3974 static LRESULT
3975 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
3976 {
3977 if (wParam != TV_EDIT_TIMER)
3978 {
3979 ERR("got unknown timer\n");
3980 return 1;
3981 }
3982
3983 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
3984 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
3985
3986 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
3987
3988 return 0;
3989 }
3990
3991
3992 /* Mouse Tracking/Drag **************************************************/
3993
3994 /***************************************************************************
3995 * This is quite unusual piece of code, but that's how it's implemented in
3996 * Windows.
3997 */
3998 static LRESULT
3999 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4000 {
4001 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4002 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4003 RECT r;
4004 MSG msg;
4005
4006 r.top = pt.y - cyDrag;
4007 r.left = pt.x - cxDrag;
4008 r.bottom = pt.y + cyDrag;
4009 r.right = pt.x + cxDrag;
4010
4011 SetCapture(infoPtr->hwnd);
4012
4013 while (1)
4014 {
4015 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4016 {
4017 if (msg.message == WM_MOUSEMOVE)
4018 {
4019 pt.x = (short)LOWORD(msg.lParam);
4020 pt.y = (short)HIWORD(msg.lParam);
4021 if (PtInRect(&r, pt))
4022 continue;
4023 else
4024 {
4025 ReleaseCapture();
4026 return 1;
4027 }
4028 }
4029 else if (msg.message >= WM_LBUTTONDOWN &&
4030 msg.message <= WM_RBUTTONDBLCLK)
4031 {
4032 if (msg.message == WM_RBUTTONUP)
4033 TREEVIEW_RButtonUp(infoPtr, &pt);
4034 break;
4035 }
4036
4037 DispatchMessageW(&msg);
4038 }
4039
4040 if (GetCapture() != infoPtr->hwnd)
4041 return 0;
4042 }
4043
4044 ReleaseCapture();
4045 return 0;
4046 }
4047
4048
4049 static LRESULT
4050 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4051 {
4052 TREEVIEW_ITEM *wineItem;
4053 TVHITTESTINFO hit;
4054
4055 TRACE("\n");
4056 SetFocus(infoPtr->hwnd);
4057
4058 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4059 {
4060 /* If there is pending 'edit label' event - kill it now */
4061 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4062 }
4063
4064 hit.pt.x = (short)LOWORD(lParam);
4065 hit.pt.y = (short)HIWORD(lParam);
4066
4067 wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
4068 if (!wineItem)
4069 return 0;
4070 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
4071
4072 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4073 { /* FIXME! */
4074 switch (hit.flags)
4075 {
4076 case TVHT_ONITEMRIGHT:
4077 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4078 break;
4079
4080 case TVHT_ONITEMINDENT:
4081 if (!(infoPtr->dwStyle & TVS_HASLINES))
4082 {
4083 break;
4084 }
4085 else
4086 {
4087 int level = hit.pt.x / infoPtr->uIndent;
4088 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4089
4090 while (wineItem->iLevel > level)
4091 {
4092 wineItem = wineItem->parent;
4093 }
4094
4095 /* fall through */
4096 }
4097
4098 case TVHT_ONITEMLABEL:
4099 case TVHT_ONITEMICON:
4100 case TVHT_ONITEMBUTTON:
4101 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
4102 break;
4103
4104 case TVHT_ONITEMSTATEICON:
4105 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4106 TREEVIEW_ToggleItemState(infoPtr, wineItem);
4107 else
4108 TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
4109 break;
4110 }
4111 }
4112 return TRUE;
4113 }
4114
4115
4116 static LRESULT
4117 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4118 {
4119 HWND hwnd = infoPtr->hwnd;
4120 TVHITTESTINFO ht;
4121 BOOL bTrack, bDoLabelEdit;
4122
4123 /* If Edit control is active - kill it and return.
4124 * The best way to do it is to set focus to itself.
4125 * Edit control subclassed procedure will automatically call
4126 * EndEditLabelNow.
4127 */
4128 if (infoPtr->hwndEdit)
4129 {
4130 SetFocus(hwnd);
4131 return 0;
4132 }
4133
4134 ht.pt.x = (short)LOWORD(lParam);
4135 ht.pt.y = (short)HIWORD(lParam);
4136
4137 TREEVIEW_HitTest(infoPtr, &ht);
4138 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4139
4140 /* update focusedItem and redraw both items */
4141 if(ht.hItem && (ht.flags & TVHT_ONITEM))
4142 {
4143 infoPtr->focusedItem = ht.hItem;
4144 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4145 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4146 }
4147
4148 bTrack = (ht.flags & TVHT_ONITEM)
4149 && !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
4150
4151 /*
4152 * If the style allows editing and the node is already selected
4153 * and the click occurred on the item label...
4154 */
4155 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4156 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4157
4158 /* Send NM_CLICK right away */
4159 if (!bTrack)
4160 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4161 goto setfocus;
4162
4163 if (ht.flags & TVHT_ONITEMBUTTON)
4164 {
4165 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4166 goto setfocus;
4167 }
4168 else if (bTrack)
4169 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4170 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4171 {
4172 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4173 infoPtr->dropItem = ht.hItem;
4174
4175 /* clean up focusedItem as we dragged and won't select this item */
4176 if(infoPtr->focusedItem)
4177 {
4178 /* refresh the item that was focused */
4179 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4180 infoPtr->focusedItem = NULL;
4181
4182 /* refresh the selected item to return the filled background */
4183 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4184 }
4185
4186 return 0;
4187 }
4188 }
4189
4190 if (bTrack && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4191 goto setfocus;
4192
4193 if (bDoLabelEdit)
4194 {
4195 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4196 KillTimer(hwnd, TV_EDIT_TIMER);
4197
4198 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4199 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4200 }
4201 else if (ht.flags & (TVHT_ONITEMICON|TVHT_ONITEMLABEL)) /* select the item if the hit was inside of the icon or text */
4202 {
4203 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4204
4205 /* Select the current item */
4206 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4207 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4208 }
4209 else if (ht.flags & TVHT_ONITEMSTATEICON)
4210 {
4211 /* TVS_CHECKBOXES requires us to toggle the current state */
4212 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4213 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4214 }
4215
4216 setfocus:
4217 SetFocus(hwnd);
4218 return 0;
4219 }
4220
4221
4222 static LRESULT
4223 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4224 {
4225 TVHITTESTINFO ht;
4226
4227 if (infoPtr->hwndEdit)
4228 {
4229 SetFocus(infoPtr->hwnd);
4230 return 0;
4231 }
4232
4233 ht.pt.x = (short)LOWORD(lParam);
4234 ht.pt.y = (short)HIWORD(lParam);
4235
4236 TREEVIEW_HitTest(infoPtr, &ht);
4237
4238 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4239 {
4240 if (ht.hItem)
4241 {
4242 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4243 infoPtr->dropItem = ht.hItem;
4244 }
4245 }
4246 else
4247 {
4248 SetFocus(infoPtr->hwnd);
4249 TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
4250 }
4251
4252 return 0;
4253 }
4254
4255 static LRESULT
4256 TREEVIEW_RButtonUp(const TREEVIEW_INFO *infoPtr, const POINT *pPt)
4257 {
4258 TVHITTESTINFO ht;
4259
4260 ht.pt = *pPt;
4261
4262 TREEVIEW_HitTest(infoPtr, &ht);
4263
4264 if (ht.hItem)
4265 {
4266 /* Change to screen coordinate for WM_CONTEXTMENU */
4267 ClientToScreen(infoPtr->hwnd, &ht.pt);
4268
4269 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4270 SendMessageW(infoPtr->hwnd, WM_CONTEXTMENU,
4271 (WPARAM)infoPtr->hwnd, MAKELPARAM(ht.pt.x, ht.pt.y));
4272 }
4273 return 0;
4274 }
4275
4276
4277 static LRESULT
4278 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4279 {
4280 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4281 INT cx, cy;
4282 HDC hdc, htopdc;
4283 HWND hwtop;
4284 HBITMAP hbmp, hOldbmp;
4285 SIZE size;
4286 RECT rc;
4287 HFONT hOldFont;
4288
4289 TRACE("\n");
4290
4291 if (!(infoPtr->himlNormal))
4292 return 0;
4293
4294 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4295 return 0;
4296
4297 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4298
4299 hwtop = GetDesktopWindow();
4300 htopdc = GetDC(hwtop);
4301 hdc = CreateCompatibleDC(htopdc);
4302
4303 hOldFont = SelectObject(hdc, infoPtr->hFont);
4304
4305 if (dragItem->pszText)
4306 GetTextExtentPoint32W(hdc, dragItem->pszText, strlenW(dragItem->pszText),
4307 &size);
4308 else
4309 GetTextExtentPoint32A(hdc, "", 0, &size);
4310
4311 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4312 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4313 hOldbmp = SelectObject(hdc, hbmp);
4314
4315 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4316 size.cx += cx;
4317 if (cy > size.cy)
4318 size.cy = cy;
4319
4320 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4321 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4322 ILD_NORMAL);
4323
4324 /*
4325 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4326 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4327 */
4328
4329 /* draw item text */
4330
4331 SetRect(&rc, cx, 0, size.cx, size.cy);
4332
4333 if (dragItem->pszText)
4334 DrawTextW(hdc, dragItem->pszText, strlenW(dragItem->pszText), &rc,
4335 DT_LEFT);
4336
4337 SelectObject(hdc, hOldFont);
4338 SelectObject(hdc, hOldbmp);
4339
4340 ImageList_Add(infoPtr->dragList, hbmp, 0);
4341
4342 DeleteDC(hdc);
4343 DeleteObject(hbmp);
4344 ReleaseDC(hwtop, htopdc);
4345
4346 return (LRESULT)infoPtr->dragList;
4347 }
4348
4349 /* Selection ************************************************************/
4350
4351 static LRESULT
4352 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4353 INT cause)
4354 {
4355 TREEVIEW_ITEM *prevSelect;
4356
4357 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4358
4359 TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
4360 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4361 newSelect ? newSelect->state : 0);
4362
4363 /* reset and redraw focusedItem if focusedItem was set so we don't */
4364 /* have to worry about the previously focused item when we set a new one */
4365 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4366 infoPtr->focusedItem = NULL;
4367
4368 switch (action)
4369 {
4370 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4371 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4372 /* Fall through */
4373 case TVGN_CARET:
4374 prevSelect = infoPtr->selectedItem;
4375
4376 if (prevSelect == newSelect) {
4377 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4378 break;
4379 }
4380
4381 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4382 TVN_SELCHANGINGW,
4383 cause,
4384 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4385 prevSelect,
4386 newSelect))
4387 return FALSE;
4388
4389 if (prevSelect)
4390 prevSelect->state &= ~TVIS_SELECTED;
4391 if (newSelect)
4392 newSelect->state |= TVIS_SELECTED;
4393
4394 infoPtr->selectedItem = newSelect;
4395
4396 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4397
4398 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4399 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4400
4401 TREEVIEW_SendTreeviewNotify(infoPtr,
4402 TVN_SELCHANGEDW,
4403 cause,
4404 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4405 prevSelect,
4406 newSelect);
4407 break;
4408
4409 case TVGN_DROPHILITE:
4410 prevSelect = infoPtr->dropItem;
4411
4412 if (prevSelect)
4413 prevSelect->state &= ~TVIS_DROPHILITED;
4414
4415 infoPtr->dropItem = newSelect;
4416
4417 if (newSelect)
4418 newSelect->state |= TVIS_DROPHILITED;
4419
4420 TREEVIEW_Invalidate(infoPtr, prevSelect);
4421 TREEVIEW_Invalidate(infoPtr, newSelect);
4422 break;
4423
4424 case TVGN_FIRSTVISIBLE:
4425 if (newSelect != NULL)
4426 {
4427 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4428 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4429 TREEVIEW_Invalidate(infoPtr, NULL);
4430 }
4431 break;
4432 }
4433
4434 TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
4435 return TRUE;
4436 }
4437
4438 /* FIXME: handle NM_KILLFOCUS etc */
4439 static LRESULT
4440 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4441 {
4442 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4443
4444 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4445 return FALSE;
4446
4447 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4448
4449 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4450 return FALSE;
4451
4452 TREEVIEW_SingleExpand(infoPtr, selection, item);
4453
4454 return TRUE;
4455 }
4456
4457 /*************************************************************************
4458 * TREEVIEW_ProcessLetterKeys
4459 *
4460 * Processes keyboard messages generated by pressing the letter keys
4461 * on the keyboard.
4462 * What this does is perform a case insensitive search from the
4463 * current position with the following quirks:
4464 * - If two chars or more are pressed in quick succession we search
4465 * for the corresponding string (e.g. 'abc').
4466 * - If there is a delay we wipe away the current search string and
4467 * restart with just that char.
4468 * - If the user keeps pressing the same character, whether slowly or
4469 * fast, so that the search string is entirely composed of this
4470 * character ('aaaaa' for instance), then we search for first item
4471 * that starting with that character.
4472 * - If the user types the above character in quick succession, then
4473 * we must also search for the corresponding string ('aaaaa'), and
4474 * go to that string if there is a match.
4475 *
4476 * RETURNS
4477 *
4478 * Zero.
4479 *
4480 * BUGS
4481 *
4482 * - The current implementation has a list of characters it will
4483 * accept and it ignores everything else. In particular it will
4484 * ignore accentuated characters which seems to match what
4485 * Windows does. But I'm not sure it makes sense to follow
4486 * Windows there.
4487 * - We don't sound a beep when the search fails.
4488 * - The search should start from the focused item, not from the selected
4489 * item. One reason for this is to allow for multiple selections in trees.
4490 * But currently infoPtr->focusedItem does not seem very usable.
4491 *
4492 * SEE ALSO
4493 *
4494 * TREEVIEW_ProcessLetterKeys
4495 */
4496 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4497 {
4498 HTREEITEM nItem;
4499 HTREEITEM endidx,idx;
4500 TVITEMEXW item;
4501 WCHAR buffer[MAX_PATH];
4502 DWORD timestamp,elapsed;
4503
4504 /* simple parameter checking */
4505 if (!charCode || !keyData) return 0;
4506
4507 /* only allow the valid WM_CHARs through */
4508 if (!isalnum(charCode) &&
4509 charCode != '.' && charCode != '`' && charCode != '!' &&
4510 charCode != '@' && charCode != '#' && charCode != '$' &&
4511 charCode != '%' && charCode != '^' && charCode != '&' &&
4512 charCode != '*' && charCode != '(' && charCode != ')' &&
4513 charCode != '-' && charCode != '_' && charCode != '+' &&
4514 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4515 charCode != '}' && charCode != '[' && charCode != '{' &&
4516 charCode != '/' && charCode != '?' && charCode != '>' &&
4517 charCode != '<' && charCode != ',' && charCode != '~')
4518 return 0;
4519
4520 /* compute how much time elapsed since last keypress */
4521 timestamp = GetTickCount();
4522 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4523 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4524 } else {
4525 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4526 }
4527
4528 /* update the search parameters */
4529 infoPtr->lastKeyPressTimestamp=timestamp;
4530 if (elapsed < KEY_DELAY) {
4531 if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam) / sizeof(WCHAR)) {
4532 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4533 }
4534 if (infoPtr->charCode != charCode) {
4535 infoPtr->charCode=charCode=0;
4536 }
4537 } else {
4538 infoPtr->charCode=charCode;
4539 infoPtr->szSearchParam[0]=charCode;
4540 infoPtr->nSearchParamLength=1;
4541 /* Redundant with the 1 char string */
4542 charCode=0;
4543 }
4544
4545 /* and search from the current position */
4546 nItem=NULL;
4547 if (infoPtr->selectedItem != NULL) {
4548 endidx=infoPtr->selectedItem;
4549 /* if looking for single character match,
4550 * then we must always move forward
4551 */
4552 if (infoPtr->nSearchParamLength == 1)
4553 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4554 else
4555 idx=endidx;
4556 } else {
4557 endidx=NULL;
4558 idx=infoPtr->root->firstChild;
4559 }
4560 do {
4561 /* At the end point, sort out wrapping */
4562 if (idx == NULL) {
4563
4564 /* If endidx is null, stop at the last item (ie top to bottom) */
4565 if (endidx == NULL)
4566 break;
4567
4568 /* Otherwise, start again at the very beginning */
4569 idx=infoPtr->root->firstChild;
4570
4571 /* But if we are stopping on the first child, end now! */
4572 if (idx == endidx) break;
4573 }
4574
4575 /* get item */
4576 ZeroMemory(&item, sizeof(item));
4577 item.mask = TVIF_TEXT;
4578 item.hItem = idx;
4579 item.pszText = buffer;
4580 item.cchTextMax = sizeof(buffer);
4581 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4582
4583 /* check for a match */
4584 if (strncmpiW(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4585 nItem=idx;
4586 break;
4587 } else if ( (charCode != 0) && (nItem == NULL) &&
4588 (nItem != infoPtr->selectedItem) &&
4589 (strncmpiW(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4590 /* This would work but we must keep looking for a longer match */
4591 nItem=idx;
4592 }
4593 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4594 } while (idx != endidx);
4595
4596 if (nItem != NULL) {
4597 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4598 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4599 }
4600 }
4601
4602 return 0;
4603 }
4604
4605 /* Scrolling ************************************************************/
4606
4607 static LRESULT
4608 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4609 {
4610 int viscount;
4611 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4612 HTREEITEM newFirstVisible = NULL;
4613 int visible_pos = -1;
4614
4615 if (!TREEVIEW_ValidItem(infoPtr, item))
4616 return FALSE;
4617
4618 if (!ISVISIBLE(item))
4619 {
4620 /* Expand parents as necessary. */
4621 HTREEITEM parent;
4622
4623 /* see if we are trying to ensure that root is visible */
4624 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4625 parent = item->parent;
4626 else
4627 parent = item; /* this item is the topmost item */
4628
4629 while (parent != infoPtr->root)
4630 {
4631 if (!(parent->state & TVIS_EXPANDED))
4632 TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
4633
4634 parent = parent->parent;
4635 }
4636 }
4637
4638 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4639
4640 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4641 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4642
4643 if (hasFirstVisible)
4644 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4645
4646 if (visible_pos < 0)
4647 {
4648 /* item is before the start of the list: put it at the top. */
4649 newFirstVisible = item;
4650 }
4651 else if (visible_pos >= viscount
4652 /* Sometimes, before we are displayed, GVC is 0, causing us to
4653 * spuriously scroll up. */
4654 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4655 {
4656 /* item is past the end of the list. */
4657 int scroll = visible_pos - viscount;
4658
4659 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4660 scroll + 1);
4661 }
4662
4663 if (bHScroll)
4664 {
4665 /* Scroll window so item's text is visible as much as possible */
4666 /* Calculation of amount of extra space is taken from EditLabel code */
4667 INT pos, x;
4668 TEXTMETRICW textMetric;
4669 HDC hdc = GetWindowDC(infoPtr->hwnd);
4670
4671 x = item->textWidth;
4672
4673 GetTextMetricsW(hdc, &textMetric);
4674 ReleaseDC(infoPtr->hwnd, hdc);
4675
4676 x += (textMetric.tmMaxCharWidth * 2);
4677 x = max(x, textMetric.tmMaxCharWidth * 3);
4678
4679 if (item->textOffset < 0)
4680 pos = item->textOffset;
4681 else if (item->textOffset + x > infoPtr->clientWidth)
4682 {
4683 if (x > infoPtr->clientWidth)
4684 pos = item->textOffset;
4685 else
4686 pos = item->textOffset + x - infoPtr->clientWidth;
4687 }
4688 else
4689 pos = 0;
4690
4691 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4692 }
4693
4694 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4695 {
4696 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4697
4698 return TRUE;
4699 }
4700
4701 return FALSE;
4702 }
4703
4704 static VOID
4705 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4706 TREEVIEW_ITEM *newFirstVisible,
4707 BOOL bUpdateScrollPos)
4708 {
4709 int gap_size;
4710
4711 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4712
4713 if (newFirstVisible != NULL)
4714 {
4715 /* Prevent an empty gap from appearing at the bottom... */
4716 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4717 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4718
4719 if (gap_size > 0)
4720 {
4721 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4722 -gap_size);
4723
4724 /* ... unless we just don't have enough items. */
4725 if (newFirstVisible == NULL)
4726 newFirstVisible = infoPtr->root->firstChild;
4727 }
4728 }
4729
4730 if (infoPtr->firstVisible != newFirstVisible)
4731 {
4732 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4733 {
4734 infoPtr->firstVisible = newFirstVisible;
4735 TREEVIEW_Invalidate(infoPtr, NULL);
4736 }
4737 else
4738 {
4739 TREEVIEW_ITEM *item;
4740 int scroll = infoPtr->uItemHeight *
4741 (infoPtr->firstVisible->visibleOrder
4742 - newFirstVisible->visibleOrder);
4743
4744 infoPtr->firstVisible = newFirstVisible;
4745
4746 for (item = infoPtr->root->firstChild; item != NULL;
4747 item = TREEVIEW_GetNextListItem(infoPtr, item))
4748 {
4749 item->rect.top += scroll;
4750 item->rect.bottom += scroll;
4751 }
4752
4753 if (bUpdateScrollPos)
4754 SetScrollPos(infoPtr->hwnd, SB_VERT,
4755 newFirstVisible->visibleOrder, TRUE);
4756
4757 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4758 }
4759 }
4760 }
4761
4762 /************************************************************************
4763 * VScroll is always in units of visible items. i.e. we always have a
4764 * visible item aligned to the top of the control. (Unless we have no
4765 * items at all.)
4766 */
4767 static LRESULT
4768 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4769 {
4770 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4771 TREEVIEW_ITEM *newFirstVisible = NULL;
4772
4773 int nScrollCode = LOWORD(wParam);
4774
4775 TRACE("wp %lx\n", wParam);
4776
4777 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4778 return 0;
4779
4780 if (!oldFirstVisible)
4781 {
4782 assert(infoPtr->root->firstChild == NULL);
4783 return 0;
4784 }
4785
4786 switch (nScrollCode)
4787 {
4788 case SB_TOP:
4789 newFirstVisible = infoPtr->root->firstChild;
4790 break;
4791
4792 case SB_BOTTOM:
4793 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4794 break;
4795
4796 case SB_LINEUP:
4797 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4798 break;
4799
4800 case SB_LINEDOWN:
4801 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4802 break;
4803
4804 case SB_PAGEUP:
4805 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4806 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4807 break;
4808
4809 case SB_PAGEDOWN:
4810 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4811 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4812 break;
4813
4814 case SB_THUMBTRACK:
4815 case SB_THUMBPOSITION:
4816 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4817 infoPtr->root->firstChild,
4818 (LONG)(SHORT)HIWORD(wParam));
4819 break;
4820
4821 case SB_ENDSCROLL:
4822 return 0;
4823 }
4824
4825 if (newFirstVisible != NULL)
4826 {
4827 if (newFirstVisible != oldFirstVisible)
4828 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4829 nScrollCode != SB_THUMBTRACK);
4830 else if (nScrollCode == SB_THUMBPOSITION)
4831 SetScrollPos(infoPtr->hwnd, SB_VERT,
4832 newFirstVisible->visibleOrder, TRUE);
4833 }
4834
4835 return 0;
4836 }
4837
4838 static LRESULT
4839 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4840 {
4841 int maxWidth;
4842 int scrollX = infoPtr->scrollX;
4843 int nScrollCode = LOWORD(wParam);
4844
4845 TRACE("wp %lx\n", wParam);
4846
4847 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4848 return FALSE;
4849
4850 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4851 /* shall never occur */
4852 if (maxWidth <= 0)
4853 {
4854 scrollX = 0;
4855 goto scroll;
4856 }
4857
4858 switch (nScrollCode)
4859 {
4860 case SB_LINELEFT:
4861 scrollX -= infoPtr->uItemHeight;
4862 break;
4863 case SB_LINERIGHT:
4864 scrollX += infoPtr->uItemHeight;
4865 break;
4866 case SB_PAGELEFT:
4867 scrollX -= infoPtr->clientWidth;
4868 break;
4869 case SB_PAGERIGHT:
4870 scrollX += infoPtr->clientWidth;
4871 break;
4872
4873 case SB_THUMBTRACK:
4874 case SB_THUMBPOSITION:
4875 scrollX = (int)(SHORT)HIWORD(wParam);
4876 break;
4877
4878 case SB_ENDSCROLL:
4879 return 0;
4880 }
4881
4882 if (scrollX > maxWidth)
4883 scrollX = maxWidth;
4884 else if (scrollX < 0)
4885 scrollX = 0;
4886
4887 scroll:
4888 if (scrollX != infoPtr->scrollX)
4889 {
4890 TREEVIEW_ITEM *item;
4891 LONG scroll_pixels = infoPtr->scrollX - scrollX;
4892
4893 for (item = infoPtr->root->firstChild; item != NULL;
4894 item = TREEVIEW_GetNextListItem(infoPtr, item))
4895 {
4896 item->linesOffset += scroll_pixels;
4897 item->stateOffset += scroll_pixels;
4898 item->imageOffset += scroll_pixels;
4899 item->textOffset += scroll_pixels;
4900 }
4901
4902 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
4903 infoPtr->scrollX = scrollX;
4904 UpdateWindow(infoPtr->hwnd);
4905 }
4906
4907 if (nScrollCode != SB_THUMBTRACK)
4908 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
4909
4910 return 0;
4911 }
4912
4913 static LRESULT
4914 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
4915 {
4916 short gcWheelDelta;
4917 UINT pulScrollLines = 3;
4918
4919 if (wParam & (MK_SHIFT | MK_CONTROL))
4920 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
4921
4922 if (infoPtr->firstVisible == NULL)
4923 return TRUE;
4924
4925 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
4926
4927 gcWheelDelta = -(short)HIWORD(wParam);
4928 pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
4929
4930 if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
4931 {
4932 int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
4933 int maxDy = infoPtr->maxVisibleOrder;
4934
4935 if (newDy > maxDy)
4936 newDy = maxDy;
4937
4938 if (newDy < 0)
4939 newDy = 0;
4940
4941 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
4942 }
4943 return TRUE;
4944 }
4945
4946 /* Create/Destroy *******************************************************/
4947
4948 static void
4949 initialize_checkboxes(TREEVIEW_INFO *infoPtr)
4950 {
4951 RECT rc;
4952 HBITMAP hbm, hbmOld;
4953 HDC hdc, hdcScreen;
4954 int nIndex;
4955
4956 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
4957
4958 hdcScreen = GetDC(0);
4959
4960 hdc = CreateCompatibleDC(hdcScreen);
4961 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
4962 hbmOld = SelectObject(hdc, hbm);
4963
4964 SetRect(&rc, 0, 0, 48, 16);
4965 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
4966
4967 SetRect(&rc, 18, 2, 30, 14);
4968 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4969 DFCS_BUTTONCHECK|DFCS_FLAT);
4970
4971 SetRect(&rc, 34, 2, 46, 14);
4972 DrawFrameControl(hdc, &rc, DFC_BUTTON,
4973 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
4974
4975 SelectObject(hdc, hbmOld);
4976 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
4977 comctl32_color.clrWindow);
4978 TRACE("checkbox index %d\n", nIndex);
4979
4980 DeleteObject(hbm);
4981 DeleteDC(hdc);
4982 ReleaseDC(0, hdcScreen);
4983
4984 infoPtr->stateImageWidth = 16;
4985 infoPtr->stateImageHeight = 16;
4986 }
4987
4988 static LRESULT
4989 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
4990 {
4991 RECT rcClient;
4992 TREEVIEW_INFO *infoPtr;
4993 LOGFONTW lf;
4994
4995 TRACE("wnd %p, style %x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
4996
4997 infoPtr = Alloc(sizeof(TREEVIEW_INFO));
4998
4999 if (infoPtr == NULL)
5000 {
5001 ERR("could not allocate info memory!\n");
5002 return 0;
5003 }
5004
5005 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5006
5007 infoPtr->hwnd = hwnd;
5008 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5009 infoPtr->Timer = 0;
5010 infoPtr->uNumItems = 0;
5011 infoPtr->cdmode = 0;
5012 infoPtr->uScrollTime = 300; /* milliseconds */
5013 infoPtr->bRedraw = TRUE;
5014
5015 GetClientRect(hwnd, &rcClient);
5016
5017 /* No scroll bars yet. */
5018 infoPtr->clientWidth = rcClient.right;
5019 infoPtr->clientHeight = rcClient.bottom;
5020 infoPtr->uInternalStatus = 0;
5021
5022 infoPtr->treeWidth = 0;
5023 infoPtr->treeHeight = 0;
5024
5025 infoPtr->uIndent = MINIMUM_INDENT;
5026 infoPtr->selectedItem = NULL;
5027 infoPtr->focusedItem = NULL;
5028 infoPtr->hotItem = NULL;
5029 infoPtr->editItem = NULL;
5030 infoPtr->firstVisible = NULL;
5031 infoPtr->maxVisibleOrder = 0;
5032 infoPtr->dropItem = NULL;
5033 infoPtr->insertMarkItem = NULL;
5034 infoPtr->insertBeforeorAfter = 0;
5035 /* dragList */
5036
5037 infoPtr->scrollX = 0;
5038
5039 infoPtr->clrBk = CLR_NONE; /* use system color */
5040 infoPtr->clrText = CLR_NONE; /* use system color */
5041 infoPtr->clrLine = CLR_DEFAULT;
5042 infoPtr->clrInsertMark = CLR_DEFAULT;
5043
5044 /* hwndToolTip */
5045
5046 infoPtr->hwndEdit = NULL;
5047 infoPtr->wpEditOrig = NULL;
5048 infoPtr->bIgnoreEditKillFocus = FALSE;
5049 infoPtr->bLabelChanged = FALSE;
5050
5051 infoPtr->himlNormal = NULL;
5052 infoPtr->himlState = NULL;
5053 infoPtr->normalImageWidth = 0;
5054 infoPtr->normalImageHeight = 0;
5055 infoPtr->stateImageWidth = 0;
5056 infoPtr->stateImageHeight = 0;
5057
5058 infoPtr->items = DPA_Create(16);
5059
5060 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5061 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5062 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5063 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5064 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5065
5066 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5067
5068 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5069 infoPtr->root->state = TVIS_EXPANDED;
5070 infoPtr->root->iLevel = -1;
5071 infoPtr->root->visibleOrder = -1;
5072
5073 infoPtr->hwndNotify = lpcs->hwndParent;
5074 infoPtr->hwndToolTip = 0;
5075
5076 infoPtr->bNtfUnicode = IsWindowUnicode (hwnd);
5077
5078 /* Determine what type of notify should be issued */
5079 /* sets infoPtr->bNtfUnicode */
5080 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5081
5082 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5083 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5084 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5085 hwnd, 0, 0, 0);
5086
5087 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5088 initialize_checkboxes(infoPtr);
5089
5090 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5091 ShowScrollBar(hwnd, SB_VERT, FALSE);
5092 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5093
5094 OpenThemeData (hwnd, themeClass);
5095
5096 return 0;
5097 }
5098
5099
5100 static LRESULT
5101 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5102 {
5103 TRACE("\n");
5104
5105 /* free item data */
5106 TREEVIEW_RemoveTree(infoPtr);
5107 /* root isn't freed with other items */
5108 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5109 DPA_Destroy(infoPtr->items);
5110
5111 /* tool tip is automatically destroyed: we are its owner */
5112
5113 /* Restore original wndproc */
5114 if (infoPtr->hwndEdit)
5115 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5116 (DWORD_PTR)infoPtr->wpEditOrig);
5117
5118 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5119
5120 /* Deassociate treeview from the window before doing anything drastic. */
5121 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5122
5123
5124 DeleteObject(infoPtr->hDefaultFont);
5125 DeleteObject(infoPtr->hBoldFont);
5126 DeleteObject(infoPtr->hUnderlineFont);
5127 Free(infoPtr);
5128
5129 return 0;
5130 }
5131
5132 /* Miscellaneous Messages ***********************************************/
5133
5134 static LRESULT
5135 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5136 {
5137 static const struct
5138 {
5139 unsigned char code;
5140 }
5141 scroll[] =
5142 {
5143 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5144 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5145 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5146 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5147 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5148 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5149 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5150 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5151 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5152 #undef SCROLL_ENTRY
5153 };
5154
5155 if (key >= VK_PRIOR && key <= VK_DOWN)
5156 {
5157 unsigned char code = scroll[key - VK_PRIOR].code;
5158
5159 (((code & (1 << 7)) == (SB_HORZ << 7))
5160 ? TREEVIEW_HScroll
5161 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5162 }
5163
5164 return 0;
5165 }
5166
5167 /************************************************************************
5168 * TREEVIEW_KeyDown
5169 *
5170 * VK_UP Move selection to the previous non-hidden item.
5171 * VK_DOWN Move selection to the next non-hidden item.
5172 * VK_HOME Move selection to the first item.
5173 * VK_END Move selection to the last item.
5174 * VK_LEFT If expanded then collapse, otherwise move to parent.
5175 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5176 * VK_ADD Expand.
5177 * VK_SUBTRACT Collapse.
5178 * VK_MULTIPLY Expand all.
5179 * VK_PRIOR Move up GetVisibleCount items.
5180 * VK_NEXT Move down GetVisibleCount items.
5181 * VK_BACK Move to parent.
5182 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5183 */
5184 static LRESULT
5185 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5186 {
5187 /* If it is non-NULL and different, it will be selected and visible. */
5188 TREEVIEW_ITEM *newSelection = NULL;
5189
5190 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5191
5192 TRACE("%lx\n", wParam);
5193
5194 if (prevItem == NULL)
5195 return FALSE;
5196
5197 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5198 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5199
5200 switch (wParam)
5201 {
5202 case VK_UP:
5203 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5204 if (!newSelection)
5205 newSelection = infoPtr->root->firstChild;
5206 break;
5207
5208 case VK_DOWN:
5209 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5210 break;
5211
5212 case VK_HOME:
5213 newSelection = infoPtr->root->firstChild;
5214 break;
5215
5216 case VK_END:
5217 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5218 break;
5219
5220 case VK_LEFT:
5221 if (prevItem->state & TVIS_EXPANDED)
5222 {
5223 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5224 }
5225 else if (prevItem->parent != infoPtr->root)
5226 {
5227 newSelection = prevItem->parent;
5228 }
5229 break;
5230
5231 case VK_RIGHT:
5232 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5233 {
5234 if (!(prevItem->state & TVIS_EXPANDED))
5235 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5236 else
5237 {
5238 newSelection = prevItem->firstChild;
5239 }
5240 }
5241
5242 break;
5243
5244 case VK_MULTIPLY:
5245 TREEVIEW_ExpandAll(infoPtr, prevItem);
5246 break;
5247
5248 case VK_ADD:
5249 if (!(prevItem->state & TVIS_EXPANDED))
5250 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5251 break;
5252
5253 case VK_SUBTRACT:
5254 if (prevItem->state & TVIS_EXPANDED)
5255 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5256 break;
5257
5258 case VK_PRIOR:
5259 newSelection
5260 = TREEVIEW_GetListItem(infoPtr, prevItem,
5261 -TREEVIEW_GetVisibleCount(infoPtr));
5262 break;
5263
5264 case VK_NEXT:
5265 newSelection
5266 = TREEVIEW_GetListItem(infoPtr, prevItem,
5267 TREEVIEW_GetVisibleCount(infoPtr));
5268 break;
5269
5270 case VK_BACK:
5271 newSelection = prevItem->parent;
5272 if (newSelection == infoPtr->root)
5273 newSelection = NULL;
5274 break;
5275
5276 case VK_SPACE:
5277 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5278 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5279 break;
5280 }
5281
5282 if (newSelection && newSelection != prevItem)
5283 {
5284 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5285 TVC_BYKEYBOARD))
5286 {
5287 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5288 }
5289 }
5290
5291 return FALSE;
5292 }
5293
5294 static LRESULT
5295 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5296 {
5297 /* remove hot effect from item */
5298 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5299 infoPtr->hotItem = NULL;
5300
5301 return 0;
5302 }
5303
5304 static LRESULT
5305 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5306 {
5307 POINT pt;
5308 TRACKMOUSEEVENT trackinfo;
5309 TREEVIEW_ITEM * item;
5310
5311 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5312
5313 /* fill in the TRACKMOUSEEVENT struct */
5314 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5315 trackinfo.dwFlags = TME_QUERY;
5316 trackinfo.hwndTrack = infoPtr->hwnd;
5317
5318 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5319 _TrackMouseEvent(&trackinfo);
5320
5321 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5322 if(!(trackinfo.dwFlags & TME_LEAVE))
5323 {
5324 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5325 trackinfo.hwndTrack = infoPtr->hwnd;
5326 /* do it as fast as possible, minimal systimer latency will be used */
5327 trackinfo.dwHoverTime = 1;
5328
5329 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5330 /* and can properly deactivate the hot item */
5331 _TrackMouseEvent(&trackinfo);
5332 }
5333
5334 pt.x = (short)LOWORD(lParam);
5335 pt.y = (short)HIWORD(lParam);
5336
5337 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5338
5339 if (item != infoPtr->hotItem)
5340 {
5341 /* redraw old hot item */
5342 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5343 infoPtr->hotItem = item;
5344 /* redraw new hot item */
5345 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5346 }
5347
5348 return 0;
5349 }
5350
5351 /* Draw themed border */
5352 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5353 {
5354 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5355 HDC dc;
5356 RECT r;
5357 HRGN cliprgn;
5358 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5359 cyEdge = GetSystemMetrics (SM_CYEDGE);
5360
5361 if (!theme)
5362 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5363
5364 GetWindowRect(infoPtr->hwnd, &r);
5365
5366 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5367 r.right - cxEdge, r.bottom - cyEdge);
5368 if (region != (HRGN)1)
5369 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5370 OffsetRect(&r, -r.left, -r.top);
5371
5372 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5373 OffsetRect(&r, -r.left, -r.top);
5374
5375 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5376 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5377 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5378 ReleaseDC(infoPtr->hwnd, dc);
5379
5380 /* Call default proc to get the scrollbars etc. painted */
5381 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5382
5383 return TRUE;
5384 }
5385
5386 static LRESULT
5387 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5388 {
5389 LPNMHDR lpnmh = (LPNMHDR)lParam;
5390
5391 if (lpnmh->code == PGN_CALCSIZE) {
5392 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5393
5394 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5395 lppgc->iWidth = infoPtr->treeWidth;
5396 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5397 infoPtr->treeWidth, infoPtr->clientWidth);
5398 }
5399 else {
5400 lppgc->iHeight = infoPtr->treeHeight;
5401 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5402 infoPtr->treeHeight, infoPtr->clientHeight);
5403 }
5404 return 0;
5405 }
5406 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5407 }
5408
5409 static LRESULT
5410 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5411 {
5412 if (wParam == SIZE_RESTORED)
5413 {
5414 infoPtr->clientWidth = (short)LOWORD(lParam);
5415 infoPtr->clientHeight = (short)HIWORD(lParam);
5416
5417 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5418 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5419 TREEVIEW_UpdateScrollBars(infoPtr);
5420 }
5421 else
5422 {
5423 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5424 }
5425
5426 TREEVIEW_Invalidate(infoPtr, NULL);
5427 return 0;
5428 }
5429
5430 static LRESULT
5431 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5432 {
5433 TRACE("(%lx %lx)\n", wParam, lParam);
5434
5435 if (wParam == GWL_STYLE)
5436 {
5437 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5438
5439 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5440 {
5441 if (dwNewStyle & TVS_CHECKBOXES)
5442 {
5443 initialize_checkboxes(infoPtr);
5444 TRACE("checkboxes enabled\n");
5445 }
5446 else
5447 {
5448 FIXME("tried to disable checkboxes\n");
5449 }
5450 }
5451
5452 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5453 {
5454 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5455 {
5456 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5457 TRACE("tooltips enabled\n");
5458 }
5459 else
5460 {
5461 DestroyWindow(infoPtr->hwndToolTip);
5462 infoPtr->hwndToolTip = 0;
5463 TRACE("tooltips disabled\n");
5464 }
5465 }
5466
5467 infoPtr->dwStyle = dwNewStyle;
5468 }
5469
5470 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5471 TREEVIEW_UpdateScrollBars(infoPtr);
5472 TREEVIEW_Invalidate(infoPtr, NULL);
5473
5474 return 0;
5475 }
5476
5477 static LRESULT
5478 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5479 {
5480 POINT pt;
5481 TREEVIEW_ITEM * item;
5482 NMMOUSE nmmouse;
5483
5484 GetCursorPos(&pt);
5485 ScreenToClient(infoPtr->hwnd, &pt);
5486
5487 item = TREEVIEW_HitTestPoint(infoPtr, pt);
5488
5489 memset(&nmmouse, 0, sizeof(nmmouse));
5490 nmmouse.hdr.hwndFrom = infoPtr->hwnd;
5491 nmmouse.hdr.idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
5492 nmmouse.hdr.code = NM_SETCURSOR;
5493 if (item)
5494 {
5495 nmmouse.dwItemSpec = (DWORD_PTR)item;
5496 nmmouse.dwItemData = item->lParam;
5497 }
5498 nmmouse.pt.x = 0;
5499 nmmouse.pt.y = 0;
5500 nmmouse.dwHitInfo = lParam;
5501 if (TREEVIEW_SendRealNotify(infoPtr, nmmouse.hdr.idFrom, &nmmouse.hdr))
5502 return 0;
5503
5504 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT))
5505 {
5506 SetCursor(infoPtr->hcurHand);
5507 return 0;
5508 }
5509 else
5510 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5511 }
5512
5513 static LRESULT
5514 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5515 {
5516 TRACE("\n");
5517
5518 if (!infoPtr->selectedItem)
5519 {
5520 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5521 TVC_UNKNOWN);
5522 }
5523
5524 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5525 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5526 return 0;
5527 }
5528
5529 static LRESULT
5530 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5531 {
5532 TRACE("\n");
5533
5534 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5535 UpdateWindow(infoPtr->hwnd);
5536 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5537 return 0;
5538 }
5539
5540 /* update theme after a WM_THEMECHANGED message */
5541 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5542 {
5543 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5544 CloseThemeData (theme);
5545 OpenThemeData (infoPtr->hwnd, themeClass);
5546 return 0;
5547 }
5548
5549
5550 static LRESULT WINAPI
5551 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5552 {
5553 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5554
5555 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5556
5557 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5558 else
5559 {
5560 if (uMsg == WM_CREATE)
5561 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5562 else
5563 goto def;
5564 }
5565
5566 switch (uMsg)
5567 {
5568 case TVM_CREATEDRAGIMAGE:
5569 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5570
5571 case TVM_DELETEITEM:
5572 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5573
5574 case TVM_EDITLABELA:
5575 case TVM_EDITLABELW:
5576 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5577
5578 case TVM_ENDEDITLABELNOW:
5579 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5580
5581 case TVM_ENSUREVISIBLE:
5582 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5583
5584 case TVM_EXPAND:
5585 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5586
5587 case TVM_GETBKCOLOR:
5588 return TREEVIEW_GetBkColor(infoPtr);
5589
5590 case TVM_GETCOUNT:
5591 return TREEVIEW_GetCount(infoPtr);
5592
5593 case TVM_GETEDITCONTROL:
5594 return TREEVIEW_GetEditControl(infoPtr);
5595
5596 case TVM_GETIMAGELIST:
5597 return TREEVIEW_GetImageList(infoPtr, wParam);
5598
5599 case TVM_GETINDENT:
5600 return TREEVIEW_GetIndent(infoPtr);
5601
5602 case TVM_GETINSERTMARKCOLOR:
5603 return TREEVIEW_GetInsertMarkColor(infoPtr);
5604
5605 case TVM_GETISEARCHSTRINGA:
5606 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5607 return 0;
5608
5609 case TVM_GETISEARCHSTRINGW:
5610 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5611 return 0;
5612
5613 case TVM_GETITEMA:
5614 case TVM_GETITEMW:
5615 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5616 uMsg == TVM_GETITEMW);
5617 case TVM_GETITEMHEIGHT:
5618 return TREEVIEW_GetItemHeight(infoPtr);
5619
5620 case TVM_GETITEMRECT:
5621 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5622
5623 case TVM_GETITEMSTATE:
5624 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5625
5626 case TVM_GETLINECOLOR:
5627 return TREEVIEW_GetLineColor(infoPtr);
5628
5629 case TVM_GETNEXTITEM:
5630 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5631
5632 case TVM_GETSCROLLTIME:
5633 return TREEVIEW_GetScrollTime(infoPtr);
5634
5635 case TVM_GETTEXTCOLOR:
5636 return TREEVIEW_GetTextColor(infoPtr);
5637
5638 case TVM_GETTOOLTIPS:
5639 return TREEVIEW_GetToolTips(infoPtr);
5640
5641 case TVM_GETUNICODEFORMAT:
5642 return TREEVIEW_GetUnicodeFormat(infoPtr);
5643
5644 case TVM_GETVISIBLECOUNT:
5645 return TREEVIEW_GetVisibleCount(infoPtr);
5646
5647 case TVM_HITTEST:
5648 return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
5649
5650 case TVM_INSERTITEMA:
5651 case TVM_INSERTITEMW:
5652 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5653 uMsg == TVM_INSERTITEMW);
5654 case TVM_SELECTITEM:
5655 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5656
5657 case TVM_SETBKCOLOR:
5658 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5659
5660 case TVM_SETIMAGELIST:
5661 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5662
5663 case TVM_SETINDENT:
5664 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5665
5666 case TVM_SETINSERTMARK:
5667 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5668
5669 case TVM_SETINSERTMARKCOLOR:
5670 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5671
5672 case TVM_SETITEMA:
5673 case TVM_SETITEMW:
5674 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5675 uMsg == TVM_SETITEMW);
5676 case TVM_SETLINECOLOR:
5677 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5678
5679 case TVM_SETITEMHEIGHT:
5680 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5681
5682 case TVM_SETSCROLLTIME:
5683 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5684
5685 case TVM_SETTEXTCOLOR:
5686 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5687
5688 case TVM_SETTOOLTIPS:
5689 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5690
5691 case TVM_SETUNICODEFORMAT:
5692 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5693
5694 case TVM_SORTCHILDREN:
5695 return TREEVIEW_SortChildren(infoPtr, lParam);
5696
5697 case TVM_SORTCHILDRENCB:
5698 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5699
5700 case WM_CHAR:
5701 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5702
5703 case WM_COMMAND:
5704 return TREEVIEW_Command(infoPtr, wParam, lParam);
5705
5706 case WM_DESTROY:
5707 return TREEVIEW_Destroy(infoPtr);
5708
5709 /* WM_ENABLE */
5710
5711 case WM_ERASEBKGND:
5712 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5713
5714 case WM_GETDLGCODE:
5715 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5716
5717 case WM_GETFONT:
5718 return TREEVIEW_GetFont(infoPtr);
5719
5720 case WM_HSCROLL:
5721 return TREEVIEW_HScroll(infoPtr, wParam);
5722
5723 case WM_KEYDOWN:
5724 return TREEVIEW_KeyDown(infoPtr, wParam);
5725
5726 case WM_KILLFOCUS:
5727 return TREEVIEW_KillFocus(infoPtr);
5728
5729 case WM_LBUTTONDBLCLK:
5730 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5731
5732 case WM_LBUTTONDOWN:
5733 return TREEVIEW_LButtonDown(infoPtr, lParam);
5734
5735 /* WM_MBUTTONDOWN */
5736
5737 case WM_MOUSELEAVE:
5738 return TREEVIEW_MouseLeave(infoPtr);
5739
5740 case WM_MOUSEMOVE:
5741 return TREEVIEW_MouseMove(infoPtr, lParam);
5742
5743 case WM_NCLBUTTONDOWN:
5744 if (infoPtr->hwndEdit)
5745 SetFocus(infoPtr->hwnd);
5746 goto def;
5747
5748 case WM_NCPAINT:
5749 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5750
5751 case WM_NOTIFY:
5752 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5753
5754 case WM_NOTIFYFORMAT:
5755 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5756
5757 case WM_PRINTCLIENT:
5758 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5759
5760 case WM_PAINT:
5761 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5762
5763 case WM_RBUTTONDOWN:
5764 return TREEVIEW_RButtonDown(infoPtr, lParam);
5765
5766 case WM_SETCURSOR:
5767 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5768
5769 case WM_SETFOCUS:
5770 return TREEVIEW_SetFocus(infoPtr);
5771
5772 case WM_SETFONT:
5773 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5774
5775 case WM_SETREDRAW:
5776 return TREEVIEW_SetRedraw(infoPtr, wParam);
5777
5778 case WM_SIZE:
5779 return TREEVIEW_Size(infoPtr, wParam, lParam);
5780
5781 case WM_STYLECHANGED:
5782 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5783
5784 case WM_SYSCOLORCHANGE:
5785 COMCTL32_RefreshSysColors();
5786 return 0;
5787
5788 /* WM_SYSKEYDOWN */
5789
5790 case WM_TIMER:
5791 return TREEVIEW_HandleTimer(infoPtr, wParam);
5792
5793 case WM_THEMECHANGED:
5794 return TREEVIEW_ThemeChanged (infoPtr);
5795
5796 case WM_VSCROLL:
5797 return TREEVIEW_VScroll(infoPtr, wParam);
5798
5799 /* WM_WININICHANGE */
5800
5801 case WM_MOUSEWHEEL:
5802 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5803
5804 case WM_DRAWITEM:
5805 TRACE("drawItem\n");
5806 goto def;
5807
5808 default:
5809 /* This mostly catches MFC and Delphi messages. :( */
5810 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5811 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5812 def:
5813 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5814 }
5815 }
5816
5817
5818 /* Class Registration ***************************************************/
5819
5820 VOID
5821 TREEVIEW_Register(void)
5822 {
5823 WNDCLASSW wndClass;
5824
5825 TRACE("\n");
5826
5827 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5828 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5829 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5830 wndClass.cbClsExtra = 0;
5831 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5832
5833 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5834 wndClass.hbrBackground = 0;
5835 wndClass.lpszClassName = WC_TREEVIEWW;
5836
5837 RegisterClassW(&wndClass);
5838 }
5839
5840
5841 VOID
5842 TREEVIEW_Unregister(void)
5843 {
5844 UnregisterClassW(WC_TREEVIEWW, NULL);
5845 }
5846
5847
5848 /* Tree Verification ****************************************************/
5849
5850 static inline void
5851 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5852
5853 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5854 const TREEVIEW_ITEM *item)
5855 {
5856 assert(infoPtr != NULL);
5857 assert(item != NULL);
5858
5859 /* both NULL, or both non-null */
5860 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5861
5862 assert(item->firstChild != item);
5863 assert(item->lastChild != item);
5864
5865 if (item->firstChild)
5866 {
5867 assert(item->firstChild->parent == item);
5868 assert(item->firstChild->prevSibling == NULL);
5869 }
5870
5871 if (item->lastChild)
5872 {
5873 assert(item->lastChild->parent == item);
5874 assert(item->lastChild->nextSibling == NULL);
5875 }
5876
5877 assert(item->nextSibling != item);
5878 if (item->nextSibling)
5879 {
5880 assert(item->nextSibling->parent == item->parent);
5881 assert(item->nextSibling->prevSibling == item);
5882 }
5883
5884 assert(item->prevSibling != item);
5885 if (item->prevSibling)
5886 {
5887 assert(item->prevSibling->parent == item->parent);
5888 assert(item->prevSibling->nextSibling == item);
5889 }
5890 }
5891
5892 static inline void
5893 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5894 {
5895 assert(item != NULL);
5896
5897 assert(item->parent != NULL);
5898 assert(item->parent != item);
5899 assert(item->iLevel == item->parent->iLevel + 1);
5900
5901 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
5902
5903 TREEVIEW_VerifyItemCommon(infoPtr, item);
5904
5905 TREEVIEW_VerifyChildren(infoPtr, item);
5906 }
5907
5908 static inline void
5909 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
5910 {
5911 const TREEVIEW_ITEM *child;
5912 assert(item != NULL);
5913
5914 for (child = item->firstChild; child != NULL; child = child->nextSibling)
5915 TREEVIEW_VerifyItem(infoPtr, child);
5916 }
5917
5918 static inline void
5919 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
5920 {
5921 TREEVIEW_ITEM *root = infoPtr->root;
5922
5923 assert(root != NULL);
5924 assert(root->iLevel == -1);
5925 assert(root->parent == NULL);
5926 assert(root->prevSibling == NULL);
5927
5928 TREEVIEW_VerifyItemCommon(infoPtr, root);
5929
5930 TREEVIEW_VerifyChildren(infoPtr, root);
5931 }
5932
5933 static void
5934 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
5935 {
5936 if (!TRACE_ON(treeview)) return;
5937
5938 assert(infoPtr != NULL);
5939 TREEVIEW_VerifyRoot(infoPtr);
5940 }
Windows API implementation