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: NM_SETCURSOR, 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
37 *
38 * Make the insertion mark look right.
39 * Scroll (instead of repaint) as much as possible.
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <assert.h>
46 #include <ctype.h>
47 #include <stdarg.h>
48 #include <string.h>
49 #include <limits.h>
50 #include <stdlib.h>
51
52 #define NONAMELESSUNION
53 #define NONAMELESSSTRUCT
54 #include "windef.h"
55 #include "winbase.h"
56 #include "wingdi.h"
57 #include "winuser.h"
58 #include "winnls.h"
59 #include "commctrl.h"
60 #include "comctl32.h"
61 #include "uxtheme.h"
62 #include "tmschema.h"
63 #include "wine/unicode.h"
64 #include "wine/debug.h"
65
66 /* internal structures */
67
68 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
69 {
70 UINT callbackMask;
71 UINT state;
72 UINT stateMask;
73 LPWSTR pszText;
74 int cchTextMax;
75 int iImage;
76 int iSelectedImage;
77 int cChildren;
78 LPARAM lParam;
79 int iIntegral; /* item height multiplier (1 is normal) */
80 int iLevel; /* indentation level:0=root level */
81 HTREEITEM parent; /* handle to parent or 0 if at root */
82 HTREEITEM firstChild; /* handle to first child or 0 if no child */
83 HTREEITEM lastChild;
84 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
85 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
86 RECT rect;
87 LONG linesOffset;
88 LONG stateOffset;
89 LONG imageOffset;
90 LONG textOffset;
91 LONG textWidth; /* horizontal text extent for pszText */
92 LONG visibleOrder; /* visible ordering, 0 is first visible item */
93 } TREEVIEW_ITEM;
94
95
96 typedef struct tagTREEVIEW_INFO
97 {
98 HWND hwnd;
99 HWND hwndNotify; /* Owner window to send notifications to */
100 DWORD dwStyle;
101 HTREEITEM root;
102 UINT uInternalStatus;
103 INT Timer;
104 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
105 INT cdmode; /* last custom draw setting */
106 UINT uScrollTime; /* max. time for scrolling in milliseconds */
107 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
108
109 UINT uItemHeight; /* item height */
110 BOOL bHeightSet;
111
112 LONG clientWidth; /* width of control window */
113 LONG clientHeight; /* height of control window */
114
115 LONG treeWidth; /* width of visible tree items */
116 LONG treeHeight; /* height of visible tree items */
117
118 UINT uIndent; /* indentation in pixels */
119 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
120 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
121 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
122
123 HTREEITEM firstVisible; /* handle to first visible item */
124 LONG maxVisibleOrder;
125 HTREEITEM dropItem; /* handle to item selected by drag cursor */
126 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
127 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
128 HIMAGELIST dragList; /* Bitmap of dragged item */
129 LONG scrollX;
130 COLORREF clrBk;
131 COLORREF clrText;
132 COLORREF clrLine;
133 COLORREF clrInsertMark;
134 HFONT hFont;
135 HFONT hDefaultFont;
136 HFONT hBoldFont;
137 HFONT hUnderlineFont;
138 HCURSOR hcurHand;
139 HWND hwndToolTip;
140
141 HWND hwndEdit;
142 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
143 BOOL bIgnoreEditKillFocus;
144 BOOL bLabelChanged;
145
146 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
147 HIMAGELIST himlNormal;
148 int normalImageHeight;
149 int normalImageWidth;
150 HIMAGELIST himlState;
151 int stateImageHeight;
152 int stateImageWidth;
153 HDPA items;
154
155 DWORD lastKeyPressTimestamp; /* Added */
156 WPARAM charCode; /* Added */
157 INT nSearchParamLength; /* Added */
158 WCHAR szSearchParam[ MAX_PATH ]; /* Added */
159 } TREEVIEW_INFO;
160
161
162 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
163 #define KEY_DELAY 450
164
165 /* bitflags for infoPtr->uInternalStatus */
166
167 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
168 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
169 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
170 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
171 #define TV_RDRAG 0x10 /* ditto Rbutton */
172 #define TV_RDRAGGING 0x20
173
174 /* bitflags for infoPtr->timer */
175
176 #define TV_EDIT_TIMER 2
177 #define TV_EDIT_TIMER_SET 2
178
179
180 VOID TREEVIEW_Register (VOID);
181 VOID TREEVIEW_Unregister (VOID);
182
183
184 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
185
186
187 #define TEXT_CALLBACK_SIZE 260
188
189 #define TREEVIEW_LEFT_MARGIN 8
190
191 #define MINIMUM_INDENT 19
192
193 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
194
195 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
196 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
197 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
198
199
200 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
201
202
203 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
204
205
206 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
207
208 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
209 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
210 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
211 static LRESULT TREEVIEW_RButtonUp(const TREEVIEW_INFO *, const POINT *);
212 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
213 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
214 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
215 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND wParam, UINT lParam);
216
217
218 /* Random Utilities *****************************************************/
219
220 #ifndef NDEBUG
221 static inline void
222 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
223 {
224 (void)infoPtr;
225 }
226 #else
227 /* The definition is at the end of the file. */
228 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
229 #endif
230
231 /* Returns the treeview private data if hwnd is a treeview.
232 * Otherwise returns an undefined value. */
233 static TREEVIEW_INFO *
234 TREEVIEW_GetInfoPtr(HWND hwnd)
235 {
236 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
237 }
238
239 /* Don't call this. Nothing wants an item index. */
240 static inline int
241 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
242 {
243 return DPA_GetPtrIndex(infoPtr->items, handle);
244 }
245
246 /* Checks if item has changed and needs to be redrawn */
247 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
248 const TVITEMEXW *tvChange)
249 {
250 /* Number of children has changed */
251 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
252 return TRUE;
253
254 /* Image has changed and it's not a callback */
255 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
256 tiNew->iImage != I_IMAGECALLBACK)
257 return TRUE;
258
259 /* Selected image has changed and it's not a callback */
260 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
261 tiNew->iSelectedImage != I_IMAGECALLBACK)
262 return TRUE;
263
264 /* Text has changed and it's not a callback */
265 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
266 tiNew->pszText != LPSTR_TEXTCALLBACKW)
267 return TRUE;
268
269 /* Indent has changed */
270 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
271 return TRUE;
272
273 /* Item state has changed */
274 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
275 return TRUE;
276
277 return FALSE;
278 }
279
280 /***************************************************************************
281 * This method checks that handle is an item for this tree.
282 */
283 static BOOL
284 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
285 {
286 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
287 {
288 TRACE("invalid item %p\n", handle);
289 return FALSE;
290 }
291 else
292 return TRUE;
293 }
294
295 static HFONT
296 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
297 {
298 LOGFONTW font;
299
300 GetObjectW(hOrigFont, sizeof(font), &font);
301 font.lfWeight = FW_BOLD;
302 return CreateFontIndirectW(&font);
303 }
304
305 static HFONT
306 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
307 {
308 LOGFONTW font;
309
310 GetObjectW(hOrigFont, sizeof(font), &font);
311 font.lfUnderline = TRUE;
312 return CreateFontIndirectW(&font);
313 }
314
315 static inline HFONT
316 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
317 {
318 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
319 return infoPtr->hUnderlineFont;
320 if (item->state & TVIS_BOLD)
321 return infoPtr->hBoldFont;
322 return infoPtr->hFont;
323 }
324
325 /* for trace/debugging purposes only */
326 static const char *
327 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
328 {
329 if (item == NULL) return "<null item>";
330 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
331 if (item->pszText == NULL) return "<null>";
332 return debugstr_w(item->pszText);
333 }
334
335 /* An item is not a child of itself. */
336 static BOOL
337 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
338 {
339 do
340 {
341 child = child->parent;
342 if (child == parent) return TRUE;
343 } while (child != NULL);
344
345 return FALSE;
346 }
347
348
349 /* Tree Traversal *******************************************************/
350
351 /***************************************************************************
352 * This method returns the last expanded sibling or child child item
353 * of a tree node
354 */
355 static TREEVIEW_ITEM *
356 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
357 {
358 if (!wineItem)
359 return NULL;
360
361 while (wineItem->lastChild)
362 {
363 if (wineItem->state & TVIS_EXPANDED)
364 wineItem = wineItem->lastChild;
365 else
366 break;
367 }
368
369 if (wineItem == infoPtr->root)
370 return NULL;
371
372 return wineItem;
373 }
374
375 /***************************************************************************
376 * This method returns the previous non-hidden item in the list not
377 * considering the tree hierarchy.
378 */
379 static TREEVIEW_ITEM *
380 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
381 {
382 if (tvItem->prevSibling)
383 {
384 /* This item has a prevSibling, get the last item in the sibling's tree. */
385 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
386
387 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
388 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
389 else
390 return upItem;
391 }
392 else
393 {
394 /* this item does not have a prevSibling, get the parent */
395 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
396 }
397 }
398
399
400 /***************************************************************************
401 * This method returns the next physical item in the treeview not
402 * considering the tree hierarchy.
403 */
404 static TREEVIEW_ITEM *
405 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
406 {
407 /*
408 * If this item has children and is expanded, return the first child
409 */
410 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
411 {
412 return tvItem->firstChild;
413 }
414
415
416 /*
417 * try to get the sibling
418 */
419 if (tvItem->nextSibling)
420 return tvItem->nextSibling;
421
422 /*
423 * Otherwise, get the parent's sibling.
424 */
425 while (tvItem->parent)
426 {
427 tvItem = tvItem->parent;
428
429 if (tvItem->nextSibling)
430 return tvItem->nextSibling;
431 }
432
433 return NULL;
434 }
435
436 /***************************************************************************
437 * This method returns the nth item starting at the given item. It returns
438 * the last item (or first) we we run out of items.
439 *
440 * Will scroll backward if count is <0.
441 * forward if count is >0.
442 */
443 static TREEVIEW_ITEM *
444 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
445 LONG count)
446 {
447 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
448 TREEVIEW_ITEM *previousItem;
449
450 assert(wineItem != NULL);
451
452 if (count > 0)
453 {
454 next_item = TREEVIEW_GetNextListItem;
455 }
456 else if (count < 0)
457 {
458 count = -count;
459 next_item = TREEVIEW_GetPrevListItem;
460 }
461 else
462 return wineItem;
463
464 do
465 {
466 previousItem = wineItem;
467 wineItem = next_item(infoPtr, wineItem);
468
469 } while (--count && wineItem != NULL);
470
471
472 return wineItem ? wineItem : previousItem;
473 }
474
475 /* Notifications ************************************************************/
476
477 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
478 {
479 if (!infoPtr->bNtfUnicode) {
480 switch (code) {
481 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
482 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
483 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
484 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
485 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
486 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
487 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
488 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
489 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
490 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
491 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
492 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
493 }
494 }
495 return code;
496 }
497
498 static LRESULT
499 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
500 {
501 TRACE("wParam=%ld, lParam=%ld\n", wParam, lParam);
502 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, wParam, lParam);
503 }
504
505 static BOOL
506 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
507 {
508 NMHDR nmhdr;
509 HWND hwnd = infoPtr->hwnd;
510
511 TRACE("%d\n", code);
512 nmhdr.hwndFrom = hwnd;
513 nmhdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
514 nmhdr.code = get_notifycode(infoPtr, code);
515
516 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.idFrom, (LPARAM)&nmhdr);
517 }
518
519 static VOID
520 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
521 {
522 tvItem->mask = mask;
523 tvItem->hItem = item;
524 tvItem->state = item->state;
525 tvItem->stateMask = 0;
526 tvItem->iImage = item->iImage;
527 tvItem->iSelectedImage = item->iSelectedImage;
528 tvItem->cChildren = item->cChildren;
529 tvItem->lParam = item->lParam;
530
531 if(mask & TVIF_TEXT)
532 {
533 if (!infoPtr->bNtfUnicode)
534 {
535 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
536 tvItem->pszText = Alloc (tvItem->cchTextMax);
537 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
538 }
539 else
540 {
541 tvItem->cchTextMax = item->cchTextMax;
542 tvItem->pszText = item->pszText;
543 }
544 }
545 else
546 {
547 tvItem->cchTextMax = 0;
548 tvItem->pszText = NULL;
549 }
550 }
551
552 static BOOL
553 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
554 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
555 {
556 HWND hwnd = infoPtr->hwnd;
557 NMTREEVIEWW nmhdr;
558 BOOL ret;
559
560 TRACE("code:%d action:%x olditem:%p newitem:%p\n",
561 code, action, oldItem, newItem);
562
563 ZeroMemory(&nmhdr, sizeof(NMTREEVIEWW));
564
565 nmhdr.hdr.hwndFrom = hwnd;
566 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
567 nmhdr.hdr.code = get_notifycode(infoPtr, code);
568 nmhdr.action = action;
569
570 if (oldItem)
571 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
572
573 if (newItem)
574 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
575
576 nmhdr.ptDrag.x = 0;
577 nmhdr.ptDrag.y = 0;
578
579 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
580 if (!infoPtr->bNtfUnicode)
581 {
582 Free(nmhdr.itemOld.pszText);
583 Free(nmhdr.itemNew.pszText);
584 }
585 return ret;
586 }
587
588 static BOOL
589 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
590 HTREEITEM dragItem, POINT pt)
591 {
592 HWND hwnd = infoPtr->hwnd;
593 NMTREEVIEWW nmhdr;
594
595 TRACE("code:%d dragitem:%p\n", code, dragItem);
596
597 nmhdr.hdr.hwndFrom = hwnd;
598 nmhdr.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
599 nmhdr.hdr.code = get_notifycode(infoPtr, code);
600 nmhdr.action = 0;
601 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
602 nmhdr.itemNew.hItem = dragItem;
603 nmhdr.itemNew.state = dragItem->state;
604 nmhdr.itemNew.lParam = dragItem->lParam;
605
606 nmhdr.ptDrag.x = pt.x;
607 nmhdr.ptDrag.y = pt.y;
608
609 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
610 }
611
612
613 static BOOL
614 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
615 HDC hdc, RECT rc)
616 {
617 HWND hwnd = infoPtr->hwnd;
618 NMTVCUSTOMDRAW nmcdhdr;
619 LPNMCUSTOMDRAW nmcd;
620
621 TRACE("drawstage:%x hdc:%p\n", dwDrawStage, hdc);
622
623 nmcd = &nmcdhdr.nmcd;
624 nmcd->hdr.hwndFrom = hwnd;
625 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
626 nmcd->hdr.code = NM_CUSTOMDRAW;
627 nmcd->dwDrawStage = dwDrawStage;
628 nmcd->hdc = hdc;
629 nmcd->rc = rc;
630 nmcd->dwItemSpec = 0;
631 nmcd->uItemState = 0;
632 nmcd->lItemlParam = 0;
633 nmcdhdr.clrText = infoPtr->clrText;
634 nmcdhdr.clrTextBk = infoPtr->clrBk;
635 nmcdhdr.iLevel = 0;
636
637 return (BOOL)TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)&nmcdhdr);
638 }
639
640
641
642 /* FIXME: need to find out when the flags in uItemState need to be set */
643
644 static BOOL
645 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
646 TREEVIEW_ITEM *wineItem, UINT uItemDrawState,
647 NMTVCUSTOMDRAW *nmcdhdr)
648 {
649 HWND hwnd = infoPtr->hwnd;
650 LPNMCUSTOMDRAW nmcd;
651 DWORD dwDrawStage;
652 DWORD_PTR dwItemSpec;
653 UINT uItemState;
654 INT retval;
655
656 dwDrawStage = CDDS_ITEM | uItemDrawState;
657 dwItemSpec = (DWORD_PTR)wineItem;
658 uItemState = 0;
659 if (wineItem->state & TVIS_SELECTED)
660 uItemState |= CDIS_SELECTED;
661 if (wineItem == infoPtr->selectedItem)
662 uItemState |= CDIS_FOCUS;
663 if (wineItem == infoPtr->hotItem)
664 uItemState |= CDIS_HOT;
665
666 nmcd = &nmcdhdr->nmcd;
667 nmcd->hdr.hwndFrom = hwnd;
668 nmcd->hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
669 nmcd->hdr.code = NM_CUSTOMDRAW;
670 nmcd->dwDrawStage = dwDrawStage;
671 nmcd->hdc = hdc;
672 nmcd->rc = wineItem->rect;
673 nmcd->dwItemSpec = dwItemSpec;
674 nmcd->uItemState = uItemState;
675 nmcd->lItemlParam = wineItem->lParam;
676 nmcdhdr->iLevel = wineItem->iLevel;
677
678 TRACE("drawstage:%x hdc:%p item:%lx, itemstate:%x, lItemlParam:%lx\n",
679 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
680 nmcd->uItemState, nmcd->lItemlParam);
681
682 retval = TREEVIEW_SendRealNotify(infoPtr, nmcd->hdr.idFrom, (LPARAM)nmcdhdr);
683
684 return retval;
685 }
686
687 static BOOL
688 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
689 {
690 HWND hwnd = infoPtr->hwnd;
691 NMTVDISPINFOW tvdi;
692 BOOL ret;
693
694 tvdi.hdr.hwndFrom = hwnd;
695 tvdi.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
696 tvdi.hdr.code = get_notifycode(infoPtr, TVN_BEGINLABELEDITW);
697
698 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
699 &tvdi.item, editItem);
700
701 ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr, tvdi.hdr.idFrom, (LPARAM)&tvdi);
702
703 if (!infoPtr->bNtfUnicode)
704 Free(tvdi.item.pszText);
705
706 return ret;
707 }
708
709 static void
710 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
711 UINT mask)
712 {
713 NMTVDISPINFOEXW callback;
714 HWND hwnd = infoPtr->hwnd;
715
716 TRACE("mask %x callbackMask %x\n", mask, wineItem->callbackMask);
717 mask &= wineItem->callbackMask;
718
719 if (mask == 0) return;
720
721 callback.hdr.hwndFrom = hwnd;
722 callback.hdr.idFrom = GetWindowLongPtrW(hwnd, GWLP_ID);
723 callback.hdr.code = get_notifycode(infoPtr, TVN_GETDISPINFOW);
724
725 /* 'state' always contains valid value, as well as 'lParam'.
726 * All other parameters are uninitialized.
727 */
728 callback.item.pszText = wineItem->pszText;
729 callback.item.cchTextMax = wineItem->cchTextMax;
730 callback.item.mask = mask;
731 callback.item.hItem = wineItem;
732 callback.item.state = wineItem->state;
733 callback.item.lParam = wineItem->lParam;
734
735 /* If text is changed we need to recalculate textWidth */
736 if (mask & TVIF_TEXT)
737 wineItem->textWidth = 0;
738
739 TREEVIEW_SendRealNotify(infoPtr, callback.hdr.idFrom, (LPARAM)&callback);
740
741 /* It may have changed due to a call to SetItem. */
742 mask &= wineItem->callbackMask;
743
744 if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
745 {
746 /* Instead of copying text into our buffer user specified its own */
747 if (!infoPtr->bNtfUnicode) {
748 LPWSTR newText;
749 int buflen;
750 int len = MultiByteToWideChar( CP_ACP, 0,
751 (LPSTR)callback.item.pszText, -1,
752 NULL, 0);
753 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
754 newText = ReAlloc(wineItem->pszText, buflen);
755
756 TRACE("returned str %s, len=%d, buflen=%d\n",
757 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
758
759 if (newText)
760 {
761 wineItem->pszText = newText;
762 MultiByteToWideChar( CP_ACP, 0,
763 (LPSTR)callback.item.pszText, -1,
764 wineItem->pszText, buflen/sizeof(WCHAR));
765 wineItem->cchTextMax = buflen/sizeof(WCHAR);
766 }
767 /* If ReAlloc fails we have nothing to do, but keep original text */
768 }
769 else {
770 int len = max(lstrlenW(callback.item.pszText) + 1,
771 TEXT_CALLBACK_SIZE);
772 LPWSTR newText = ReAlloc(wineItem->pszText, len);
773
774 TRACE("returned wstr %s, len=%d\n",
775 debugstr_w(callback.item.pszText), len);
776
777 if (newText)
778 {
779 wineItem->pszText = newText;
780 strcpyW(wineItem->pszText, callback.item.pszText);
781 wineItem->cchTextMax = len;
782 }
783 /* If ReAlloc fails we have nothing to do, but keep original text */
784 }
785 }
786 else if (mask & TVIF_TEXT) {
787 /* User put text into our buffer, that is ok unless A string */
788 if (!infoPtr->bNtfUnicode) {
789 LPWSTR newText;
790 LPWSTR oldText = NULL;
791 int buflen;
792 int len = MultiByteToWideChar( CP_ACP, 0,
793 (LPSTR)callback.item.pszText, -1,
794 NULL, 0);
795 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
796 newText = Alloc(buflen);
797
798 TRACE("same buffer str %s, len=%d, buflen=%d\n",
799 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
800
801 if (newText)
802 {
803 oldText = wineItem->pszText;
804 wineItem->pszText = newText;
805 MultiByteToWideChar( CP_ACP, 0,
806 (LPSTR)callback.item.pszText, -1,
807 wineItem->pszText, buflen/sizeof(WCHAR));
808 wineItem->cchTextMax = buflen/sizeof(WCHAR);
809 Free(oldText);
810 }
811 }
812 }
813
814 if (mask & TVIF_IMAGE)
815 wineItem->iImage = callback.item.iImage;
816
817 if (mask & TVIF_SELECTEDIMAGE)
818 wineItem->iSelectedImage = callback.item.iSelectedImage;
819
820 if (mask & TVIF_CHILDREN)
821 wineItem->cChildren = callback.item.cChildren;
822
823 /* These members are now permanently set. */
824 if (callback.item.mask & TVIF_DI_SETITEM)
825 wineItem->callbackMask &= ~callback.item.mask;
826 }
827
828 /***************************************************************************
829 * This function uses cChildren field to decide whether the item has
830 * children or not.
831 * Note: if this returns TRUE, the child items may not actually exist,
832 * they could be virtual.
833 *
834 * Just use wineItem->firstChild to check for physical children.
835 */
836 static BOOL
837 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
838 {
839 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
840
841 return wineItem->cChildren > 0;
842 }
843
844
845 /* Item Position ********************************************************/
846
847 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
848 static VOID
849 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
850 {
851 /* Same effect, different optimisation. */
852 #if 0
853 BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
854 && (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
855 #else
856 BOOL lar = ((infoPtr->dwStyle
857 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
858 > TVS_LINESATROOT);
859 #endif
860
861 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
862 - infoPtr->scrollX;
863 item->stateOffset = item->linesOffset + infoPtr->uIndent;
864 item->imageOffset = item->stateOffset
865 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
866 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
867 }
868
869 static VOID
870 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
871 {
872 HDC hdc;
873 HFONT hOldFont=0;
874 SIZE sz;
875
876 /* DRAW's OM docker creates items like this */
877 if (item->pszText == NULL)
878 {
879 item->textWidth = 0;
880 return;
881 }
882
883 if (hDC != 0)
884 {
885 hdc = hDC;
886 }
887 else
888 {
889 hdc = GetDC(infoPtr->hwnd);
890 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
891 }
892
893 GetTextExtentPoint32W(hdc, item->pszText, strlenW(item->pszText), &sz);
894 item->textWidth = sz.cx;
895
896 if (hDC == 0)
897 {
898 SelectObject(hdc, hOldFont);
899 ReleaseDC(0, hdc);
900 }
901 }
902
903 static VOID
904 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
905 {
906 item->rect.top = infoPtr->uItemHeight *
907 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
908
909 item->rect.bottom = item->rect.top
910 + infoPtr->uItemHeight * item->iIntegral - 1;
911
912 item->rect.left = 0;
913 item->rect.right = infoPtr->clientWidth;
914 }
915
916 /* We know that only items after start need their order updated. */
917 static void
918 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
919 {
920 TREEVIEW_ITEM *item;
921 int order;
922
923 if (!start)
924 {
925 start = infoPtr->root->firstChild;
926 order = 0;
927 }
928 else
929 order = start->visibleOrder;
930
931 for (item = start; item != NULL;
932 item = TREEVIEW_GetNextListItem(infoPtr, item))
933 {
934 if (!ISVISIBLE(item) && order > 0)
935 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
936 item->visibleOrder = order;
937 order += item->iIntegral;
938 }
939
940 infoPtr->maxVisibleOrder = order;
941
942 for (item = start; item != NULL;
943 item = TREEVIEW_GetNextListItem(infoPtr, item))
944 {
945 TREEVIEW_ComputeItemRect(infoPtr, item);
946 }
947 }
948
949
950 /* Update metrics of all items in selected subtree.
951 * root must be expanded
952 */
953 static VOID
954 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
955 {
956 TREEVIEW_ITEM *sibling;
957 HDC hdc;
958 HFONT hOldFont;
959
960 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
961 return;
962
963 root->state &= ~TVIS_EXPANDED;
964 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
965 root->state |= TVIS_EXPANDED;
966
967 hdc = GetDC(infoPtr->hwnd);
968 hOldFont = SelectObject(hdc, infoPtr->hFont);
969
970 for (; root != sibling;
971 root = TREEVIEW_GetNextListItem(infoPtr, root))
972 {
973 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
974
975 if (root->callbackMask & TVIF_TEXT)
976 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
977
978 if (root->textWidth == 0)
979 {
980 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
981 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
982 }
983 }
984
985 SelectObject(hdc, hOldFont);
986 ReleaseDC(infoPtr->hwnd, hdc);
987 }
988
989 /* Item Allocation **********************************************************/
990
991 static TREEVIEW_ITEM *
992 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
993 {
994 TREEVIEW_ITEM *newItem = Alloc(sizeof(TREEVIEW_ITEM));
995
996 if (!newItem)
997 return NULL;
998
999 /* I_IMAGENONE would make more sense but this is neither what is
1000 * documented (MSDN doesn't specify) nor what Windows actually does
1001 * (it sets it to zero)... and I can so imagine an application using
1002 * inc/dec to toggle the images. */
1003 newItem->iImage = 0;
1004 newItem->iSelectedImage = 0;
1005
1006 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1007 {
1008 Free(newItem);
1009 return NULL;
1010 }
1011
1012 return newItem;
1013 }
1014
1015 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1016 * free item->pszText. */
1017 static void
1018 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1019 {
1020 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1021 if (infoPtr->selectedItem == item)
1022 infoPtr->selectedItem = NULL;
1023 if (infoPtr->hotItem == item)
1024 infoPtr->hotItem = NULL;
1025 if (infoPtr->focusedItem == item)
1026 infoPtr->focusedItem = NULL;
1027 if (infoPtr->firstVisible == item)
1028 infoPtr->firstVisible = NULL;
1029 if (infoPtr->dropItem == item)
1030 infoPtr->dropItem = NULL;
1031 if (infoPtr->insertMarkItem == item)
1032 infoPtr->insertMarkItem = NULL;
1033 Free(item);
1034 }
1035
1036
1037 /* Item Insertion *******************************************************/
1038
1039 /***************************************************************************
1040 * This method inserts newItem before sibling as a child of parent.
1041 * sibling can be NULL, but only if parent has no children.
1042 */
1043 static void
1044 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1045 TREEVIEW_ITEM *parent)
1046 {
1047 assert(parent != NULL);
1048
1049 if (sibling != NULL)
1050 {
1051 assert(sibling->parent == parent);
1052
1053 if (sibling->prevSibling != NULL)
1054 sibling->prevSibling->nextSibling = newItem;
1055
1056 newItem->prevSibling = sibling->prevSibling;
1057 sibling->prevSibling = newItem;
1058 }
1059 else
1060 newItem->prevSibling = NULL;
1061
1062 newItem->nextSibling = sibling;
1063
1064 if (parent->firstChild == sibling)
1065 parent->firstChild = newItem;
1066
1067 if (parent->lastChild == NULL)
1068 parent->lastChild = newItem;
1069 }
1070
1071 /***************************************************************************
1072 * This method inserts newItem after sibling as a child of parent.
1073 * sibling can be NULL, but only if parent has no children.
1074 */
1075 static void
1076 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1077 TREEVIEW_ITEM *parent)
1078 {
1079 assert(parent != NULL);
1080
1081 if (sibling != NULL)
1082 {
1083 assert(sibling->parent == parent);
1084
1085 if (sibling->nextSibling != NULL)
1086 sibling->nextSibling->prevSibling = newItem;
1087
1088 newItem->nextSibling = sibling->nextSibling;
1089 sibling->nextSibling = newItem;
1090 }
1091 else
1092 newItem->nextSibling = NULL;
1093
1094 newItem->prevSibling = sibling;
1095
1096 if (parent->lastChild == sibling)
1097 parent->lastChild = newItem;
1098
1099 if (parent->firstChild == NULL)
1100 parent->firstChild = newItem;
1101 }
1102
1103 static BOOL
1104 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
1105 const TVITEMEXW *tvItem, BOOL isW)
1106 {
1107 UINT callbackClear = 0;
1108 UINT callbackSet = 0;
1109
1110 TRACE("item %p\n", wineItem);
1111 /* Do this first in case it fails. */
1112 if (tvItem->mask & TVIF_TEXT)
1113 {
1114 wineItem->textWidth = 0; /* force width recalculation */
1115 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1116 {
1117 int len;
1118 LPWSTR newText;
1119 if (isW)
1120 len = lstrlenW(tvItem->pszText) + 1;
1121 else
1122 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1123
1124 newText = ReAlloc(wineItem->pszText, len * sizeof(WCHAR));
1125
1126 if (newText == NULL) return FALSE;
1127
1128 callbackClear |= TVIF_TEXT;
1129
1130 wineItem->pszText = newText;
1131 wineItem->cchTextMax = len;
1132 if (isW)
1133 lstrcpynW(wineItem->pszText, tvItem->pszText, len);
1134 else
1135 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1136 wineItem->pszText, len);
1137
1138 TRACE("setting text %s, item %p\n", debugstr_w(wineItem->pszText), wineItem);
1139 }
1140 else
1141 {
1142 callbackSet |= TVIF_TEXT;
1143
1144 wineItem->pszText = ReAlloc(wineItem->pszText,
1145 TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1146 wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
1147 TRACE("setting callback, item %p\n", wineItem);
1148 }
1149 }
1150
1151 if (tvItem->mask & TVIF_CHILDREN)
1152 {
1153 wineItem->cChildren = tvItem->cChildren;
1154
1155 if (wineItem->cChildren == I_CHILDRENCALLBACK)
1156 callbackSet |= TVIF_CHILDREN;
1157 else
1158 callbackClear |= TVIF_CHILDREN;
1159 }
1160
1161 if (tvItem->mask & TVIF_IMAGE)
1162 {
1163 wineItem->iImage = tvItem->iImage;
1164
1165 if (wineItem->iImage == I_IMAGECALLBACK)
1166 callbackSet |= TVIF_IMAGE;
1167 else
1168 callbackClear |= TVIF_IMAGE;
1169 }
1170
1171 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1172 {
1173 wineItem->iSelectedImage = tvItem->iSelectedImage;
1174
1175 if (wineItem->iSelectedImage == I_IMAGECALLBACK)
1176 callbackSet |= TVIF_SELECTEDIMAGE;
1177 else
1178 callbackClear |= TVIF_SELECTEDIMAGE;
1179 }
1180
1181 if (tvItem->mask & TVIF_PARAM)
1182 wineItem->lParam = tvItem->lParam;
1183
1184 /* If the application sets TVIF_INTEGRAL without
1185 * supplying a TVITEMEX structure, it's toast. */
1186 if (tvItem->mask & TVIF_INTEGRAL)
1187 wineItem->iIntegral = tvItem->iIntegral;
1188
1189 if (tvItem->mask & TVIF_STATE)
1190 {
1191 TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
1192 tvItem->stateMask);
1193 wineItem->state &= ~tvItem->stateMask;
1194 wineItem->state |= (tvItem->state & tvItem->stateMask);
1195 }
1196
1197 wineItem->callbackMask |= callbackSet;
1198 wineItem->callbackMask &= ~callbackClear;
1199
1200 return TRUE;
1201 }
1202
1203 /* Note that the new item is pre-zeroed. */
1204 static LRESULT
1205 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1206 {
1207 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1208 HTREEITEM insertAfter;
1209 TREEVIEW_ITEM *newItem, *parentItem;
1210 BOOL bTextUpdated = FALSE;
1211
1212 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1213 {
1214 parentItem = infoPtr->root;
1215 }
1216 else
1217 {
1218 parentItem = ptdi->hParent;
1219
1220 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1221 {
1222 WARN("invalid parent %p\n", parentItem);
1223 return 0;
1224 }
1225 }
1226
1227 insertAfter = ptdi->hInsertAfter;
1228
1229 /* Validate this now for convenience. */
1230 switch ((DWORD_PTR)insertAfter)
1231 {
1232 case (DWORD_PTR)TVI_FIRST:
1233 case (DWORD_PTR)TVI_LAST:
1234 case (DWORD_PTR)TVI_SORT:
1235 break;
1236
1237 default:
1238 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1239 insertAfter->parent != parentItem)
1240 {
1241 WARN("invalid insert after %p\n", insertAfter);
1242 insertAfter = TVI_LAST;
1243 }
1244 }
1245
1246 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1247 (tvItem->mask & TVIF_TEXT)
1248 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1249 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1250 : "<no label>");
1251
1252 newItem = TREEVIEW_AllocateItem(infoPtr);
1253 if (newItem == NULL)
1254 return 0;
1255
1256 newItem->parent = parentItem;
1257 newItem->iIntegral = 1;
1258 newItem->visibleOrder = -1;
1259
1260 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1261 return 0;
1262
1263 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1264
1265 infoPtr->uNumItems++;
1266
1267 switch ((DWORD_PTR)insertAfter)
1268 {
1269 case (DWORD_PTR)TVI_FIRST:
1270 {
1271 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1272 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1273 if (infoPtr->firstVisible == originalFirst)
1274 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1275 }
1276 break;
1277
1278 case (DWORD_PTR)TVI_LAST:
1279 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1280 break;
1281
1282 /* hInsertAfter names a specific item we want to insert after */
1283 default:
1284 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1285 break;
1286
1287 case (DWORD_PTR)TVI_SORT:
1288 {
1289 TREEVIEW_ITEM *aChild;
1290 TREEVIEW_ITEM *previousChild = NULL;
1291 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1292 BOOL bItemInserted = FALSE;
1293
1294 aChild = parentItem->firstChild;
1295
1296 bTextUpdated = TRUE;
1297 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1298
1299 /* Iterate the parent children to see where we fit in */
1300 while (aChild != NULL)
1301 {
1302 INT comp;
1303
1304 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1305 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1306
1307 if (comp < 0) /* we are smaller than the current one */
1308 {
1309 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1310 if (infoPtr->firstVisible == originalFirst &&
1311 aChild == originalFirst)
1312 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1313 bItemInserted = TRUE;
1314 break;
1315 }
1316 else if (comp > 0) /* we are bigger than the current one */
1317 {
1318 previousChild = aChild;
1319
1320 /* This will help us to exit if there is no more sibling */
1321 aChild = (aChild->nextSibling == 0)
1322 ? NULL
1323 : aChild->nextSibling;
1324
1325 /* Look at the next item */
1326 continue;
1327 }
1328 else if (comp == 0)
1329 {
1330 /*
1331 * An item with this name is already existing, therefore,
1332 * we add after the one we found
1333 */
1334 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1335 bItemInserted = TRUE;
1336 break;
1337 }
1338 }
1339
1340 /*
1341 * we reach the end of the child list and the item has not
1342 * yet been inserted, therefore, insert it after the last child.
1343 */
1344 if ((!bItemInserted) && (aChild == NULL))
1345 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1346
1347 break;
1348 }
1349 }
1350
1351
1352 TRACE("new item %p; parent %p, mask %x\n", newItem,
1353 newItem->parent, tvItem->mask);
1354
1355 newItem->iLevel = newItem->parent->iLevel + 1;
1356
1357 if (newItem->parent->cChildren == 0)
1358 newItem->parent->cChildren = 1;
1359
1360 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1361 {
1362 if (STATEIMAGEINDEX(newItem->state) == 0)
1363 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1364 }
1365
1366 if (infoPtr->firstVisible == NULL)
1367 infoPtr->firstVisible = newItem;
1368
1369 TREEVIEW_VerifyTree(infoPtr);
1370
1371 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1372
1373 if (parentItem == infoPtr->root ||
1374 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1375 {
1376 TREEVIEW_ITEM *item;
1377 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1378
1379 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1380 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1381
1382 if (!bTextUpdated)
1383 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1384
1385 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1386 TREEVIEW_UpdateScrollBars(infoPtr);
1387 /*
1388 * if the item was inserted in a visible part of the tree,
1389 * invalidate it, as well as those after it
1390 */
1391 for (item = newItem;
1392 item != NULL;
1393 item = TREEVIEW_GetNextListItem(infoPtr, item))
1394 TREEVIEW_Invalidate(infoPtr, item);
1395 }
1396 else
1397 {
1398 /* refresh treeview if newItem is the first item inserted under parentItem */
1399 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1400 {
1401 /* parent got '+' - update it */
1402 TREEVIEW_Invalidate(infoPtr, parentItem);
1403 }
1404 }
1405
1406 return (LRESULT)newItem;
1407 }
1408
1409 /* Item Deletion ************************************************************/
1410 static void
1411 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
1412
1413 static void
1414 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1415 {
1416 TREEVIEW_ITEM *kill = parentItem->firstChild;
1417
1418 while (kill != NULL)
1419 {
1420 TREEVIEW_ITEM *next = kill->nextSibling;
1421
1422 TREEVIEW_RemoveItem(infoPtr, kill);
1423
1424 kill = next;
1425 }
1426
1427 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1428 assert(parentItem->firstChild == NULL);
1429 assert(parentItem->lastChild == NULL);
1430 }
1431
1432 static void
1433 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1434 {
1435 TREEVIEW_ITEM *parentItem = item->parent;
1436
1437 assert(item != NULL);
1438 assert(item->parent != NULL); /* i.e. it must not be the root */
1439
1440 if (parentItem->firstChild == item)
1441 parentItem->firstChild = item->nextSibling;
1442
1443 if (parentItem->lastChild == item)
1444 parentItem->lastChild = item->prevSibling;
1445
1446 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1447 && parentItem->cChildren > 0)
1448 parentItem->cChildren = 0;
1449
1450 if (item->prevSibling)
1451 item->prevSibling->nextSibling = item->nextSibling;
1452
1453 if (item->nextSibling)
1454 item->nextSibling->prevSibling = item->prevSibling;
1455 }
1456
1457 static void
1458 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
1459 {
1460 TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1461
1462 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1463 TVIF_HANDLE | TVIF_PARAM, wineItem, 0);
1464
1465 if (wineItem->firstChild)
1466 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
1467
1468 TREEVIEW_UnlinkItem(wineItem);
1469
1470 infoPtr->uNumItems--;
1471
1472 if (wineItem->pszText != LPSTR_TEXTCALLBACKW)
1473 Free(wineItem->pszText);
1474
1475 TREEVIEW_FreeItem(infoPtr, wineItem);
1476 }
1477
1478
1479 /* Empty out the tree. */
1480 static void
1481 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1482 {
1483 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1484
1485 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1486 }
1487
1488 static LRESULT
1489 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
1490 {
1491 TREEVIEW_ITEM *newSelection = NULL;
1492 TREEVIEW_ITEM *newFirstVisible = NULL;
1493 TREEVIEW_ITEM *parent, *prev = NULL;
1494 BOOL visible = FALSE;
1495
1496 if (wineItem == TVI_ROOT)
1497 {
1498 TRACE("TVI_ROOT\n");
1499 parent = infoPtr->root;
1500 newSelection = NULL;
1501 visible = TRUE;
1502 TREEVIEW_RemoveTree(infoPtr);
1503 }
1504 else
1505 {
1506 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
1507 return FALSE;
1508
1509 TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
1510 parent = wineItem->parent;
1511
1512 if (ISVISIBLE(wineItem))
1513 {
1514 prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
1515 visible = TRUE;
1516 }
1517
1518 if (infoPtr->selectedItem != NULL
1519 && (wineItem == infoPtr->selectedItem
1520 || TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
1521 {
1522 if (wineItem->nextSibling)
1523 newSelection = wineItem->nextSibling;
1524 else if (wineItem->parent != infoPtr->root)
1525 newSelection = wineItem->parent;
1526 else
1527 newSelection = wineItem->prevSibling;
1528 TRACE("newSelection = %p\n", newSelection);
1529 }
1530
1531 if (infoPtr->firstVisible == wineItem)
1532 {
1533 if (wineItem->nextSibling)
1534 newFirstVisible = wineItem->nextSibling;
1535 else if (wineItem->prevSibling)
1536 newFirstVisible = wineItem->prevSibling;
1537 else if (wineItem->parent != infoPtr->root)
1538 newFirstVisible = wineItem->parent;
1539 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1540 }
1541 else
1542 newFirstVisible = infoPtr->firstVisible;
1543
1544 TREEVIEW_RemoveItem(infoPtr, wineItem);
1545 }
1546
1547 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1548 if (!infoPtr->selectedItem && newSelection)
1549 {
1550 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1551 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1552 }
1553
1554 /* Validate insertMark dropItem.
1555 * hotItem ??? - used for comparison only.
1556 */
1557 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1558 infoPtr->insertMarkItem = 0;
1559
1560 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1561 infoPtr->dropItem = 0;
1562
1563 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1564 newFirstVisible = infoPtr->root->firstChild;
1565
1566 TREEVIEW_VerifyTree(infoPtr);
1567
1568 if (!infoPtr->bRedraw) return TRUE;
1569
1570 if (visible)
1571 {
1572 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1573 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1574 TREEVIEW_UpdateScrollBars(infoPtr);
1575 TREEVIEW_Invalidate(infoPtr, NULL);
1576 }
1577 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1578 {
1579 /* parent lost '+/-' - update it */
1580 TREEVIEW_Invalidate(infoPtr, parent);
1581 }
1582
1583 return TRUE;
1584 }
1585
1586
1587 /* Get/Set Messages *********************************************************/
1588 static LRESULT
1589 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1590 {
1591 infoPtr->bRedraw = wParam ? TRUE : FALSE;
1592
1593 if (infoPtr->bRedraw)
1594 {
1595 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1596 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1597 TREEVIEW_UpdateScrollBars(infoPtr);
1598 TREEVIEW_Invalidate(infoPtr, NULL);
1599 }
1600 return 0;
1601 }
1602
1603 static LRESULT
1604 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1605 {
1606 TRACE("\n");
1607 return infoPtr->uIndent;
1608 }
1609
1610 static LRESULT
1611 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1612 {
1613 TRACE("\n");
1614
1615 if (newIndent < MINIMUM_INDENT)
1616 newIndent = MINIMUM_INDENT;
1617
1618 if (infoPtr->uIndent != newIndent)
1619 {
1620 infoPtr->uIndent = newIndent;
1621 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1622 TREEVIEW_UpdateScrollBars(infoPtr);
1623 TREEVIEW_Invalidate(infoPtr, NULL);
1624 }
1625
1626 return 0;
1627 }
1628
1629
1630 static LRESULT
1631 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1632 {
1633 TRACE("\n");
1634 return (LRESULT)infoPtr->hwndToolTip;
1635 }
1636
1637 static LRESULT
1638 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1639 {
1640 HWND prevToolTip;
1641
1642 TRACE("\n");
1643 prevToolTip = infoPtr->hwndToolTip;
1644 infoPtr->hwndToolTip = hwndTT;
1645
1646 return (LRESULT)prevToolTip;
1647 }
1648
1649 static LRESULT
1650 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1651 {
1652 BOOL rc = infoPtr->bNtfUnicode;
1653 infoPtr->bNtfUnicode = fUnicode;
1654 return rc;
1655 }
1656
1657 static LRESULT
1658 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1659 {
1660 return infoPtr->bNtfUnicode;
1661 }
1662
1663 static LRESULT
1664 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1665 {
1666 return infoPtr->uScrollTime;
1667 }
1668
1669 static LRESULT
1670 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1671 {
1672 UINT uOldScrollTime = infoPtr->uScrollTime;
1673
1674 infoPtr->uScrollTime = min(uScrollTime, 100);
1675
1676 return uOldScrollTime;
1677 }
1678
1679
1680 static LRESULT
1681 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1682 {
1683 TRACE("\n");
1684
1685 switch (wParam)
1686 {
1687 case (WPARAM)TVSIL_NORMAL:
1688 return (LRESULT)infoPtr->himlNormal;
1689
1690 case (WPARAM)TVSIL_STATE:
1691 return (LRESULT)infoPtr->himlState;
1692
1693 default:
1694 return 0;
1695 }
1696 }
1697
1698 #define TVHEIGHT_MIN 16
1699 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1700
1701 /* Compute the natural height for items. */
1702 static UINT
1703 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1704 {
1705 TEXTMETRICW tm;
1706 HDC hdc = GetDC(0);
1707 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1708 UINT height;
1709
1710 /* Height is the maximum of:
1711 * 16 (a hack because our fonts are tiny), and
1712 * The text height + border & margin, and
1713 * The size of the normal image list
1714 */
1715 GetTextMetricsW(hdc, &tm);
1716 SelectObject(hdc, hOldFont);
1717 ReleaseDC(0, hdc);
1718
1719 height = TVHEIGHT_MIN;
1720 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1721 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1722 if (height < infoPtr->normalImageHeight)
1723 height = infoPtr->normalImageHeight;
1724
1725 /* Round down, unless we support odd ("non even") heights. */
1726 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1727 height &= ~1;
1728
1729 return height;
1730 }
1731
1732 static LRESULT
1733 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
1734 {
1735 HIMAGELIST himlOld = 0;
1736 int oldWidth = infoPtr->normalImageWidth;
1737 int oldHeight = infoPtr->normalImageHeight;
1738
1739
1740 TRACE("%lx,%p\n", wParam, himlNew);
1741
1742 switch (wParam)
1743 {
1744 case (WPARAM)TVSIL_NORMAL:
1745 himlOld = infoPtr->himlNormal;
1746 infoPtr->himlNormal = himlNew;
1747
1748 if (himlNew != NULL)
1749 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1750 &infoPtr->normalImageHeight);
1751 else
1752 {
1753 infoPtr->normalImageWidth = 0;
1754 infoPtr->normalImageHeight = 0;
1755 }
1756
1757 break;
1758
1759 case (WPARAM)TVSIL_STATE:
1760 himlOld = infoPtr->himlState;
1761 infoPtr->himlState = himlNew;
1762
1763 if (himlNew != NULL)
1764 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1765 &infoPtr->stateImageHeight);
1766 else
1767 {
1768 infoPtr->stateImageWidth = 0;
1769 infoPtr->stateImageHeight = 0;
1770 }
1771
1772 break;
1773 }
1774
1775 if (oldWidth != infoPtr->normalImageWidth ||
1776 oldHeight != infoPtr->normalImageHeight)
1777 {
1778 BOOL bRecalcVisible = FALSE;
1779
1780 if (oldHeight != infoPtr->normalImageHeight &&
1781 !infoPtr->bHeightSet)
1782 {
1783 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1784 bRecalcVisible = TRUE;
1785 }
1786
1787 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1788 infoPtr->normalImageWidth != infoPtr->uIndent)
1789 {
1790 infoPtr->uIndent = infoPtr->normalImageWidth;
1791 bRecalcVisible = TRUE;
1792 }
1793
1794 if (bRecalcVisible)
1795 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1796
1797 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1798 TREEVIEW_UpdateScrollBars(infoPtr);
1799 }
1800
1801 TREEVIEW_Invalidate(infoPtr, NULL);
1802
1803 return (LRESULT)himlOld;
1804 }
1805
1806 static LRESULT
1807 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1808 {
1809 INT prevHeight = infoPtr->uItemHeight;
1810
1811 TRACE("%d\n", newHeight);
1812 if (newHeight == -1)
1813 {
1814 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1815 infoPtr->bHeightSet = FALSE;
1816 }
1817 else
1818 {
1819 infoPtr->uItemHeight = newHeight;
1820 infoPtr->bHeightSet = TRUE;
1821 }
1822
1823 /* Round down, unless we support odd ("non even") heights. */
1824 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1825 infoPtr->uItemHeight &= ~1;
1826
1827 if (infoPtr->uItemHeight != prevHeight)
1828 {
1829 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1830 TREEVIEW_UpdateScrollBars(infoPtr);
1831 TREEVIEW_Invalidate(infoPtr, NULL);
1832 }
1833
1834 return prevHeight;
1835 }
1836
1837 static LRESULT
1838 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1839 {
1840 TRACE("\n");
1841 return infoPtr->uItemHeight;
1842 }
1843
1844
1845 static LRESULT
1846 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1847 {
1848 TRACE("%p\n", infoPtr->hFont);
1849 return (LRESULT)infoPtr->hFont;
1850 }
1851
1852
1853 static INT CALLBACK
1854 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1855 {
1856 (void)unused;
1857
1858 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1859
1860 return 1;
1861 }
1862
1863 static LRESULT
1864 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1865 {
1866 UINT uHeight = infoPtr->uItemHeight;
1867
1868 TRACE("%p %i\n", hFont, bRedraw);
1869
1870 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1871
1872 DeleteObject(infoPtr->hBoldFont);
1873 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1874 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1875
1876 if (!infoPtr->bHeightSet)
1877 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1878
1879 if (uHeight != infoPtr->uItemHeight)
1880 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1881
1882 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1883
1884 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1885 TREEVIEW_UpdateScrollBars(infoPtr);
1886
1887 if (bRedraw)
1888 TREEVIEW_Invalidate(infoPtr, NULL);
1889
1890 return 0;
1891 }
1892
1893
1894 static LRESULT
1895 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1896 {
1897 TRACE("\n");
1898 return (LRESULT)infoPtr->clrLine;
1899 }
1900
1901 static LRESULT
1902 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1903 {
1904 COLORREF prevColor = infoPtr->clrLine;
1905
1906 TRACE("\n");
1907 infoPtr->clrLine = color;
1908 return (LRESULT)prevColor;
1909 }
1910
1911
1912 static LRESULT
1913 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1914 {
1915 TRACE("\n");
1916 return (LRESULT)infoPtr->clrText;
1917 }
1918
1919 static LRESULT
1920 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1921 {
1922 COLORREF prevColor = infoPtr->clrText;
1923
1924 TRACE("\n");
1925 infoPtr->clrText = color;
1926
1927 if (infoPtr->clrText != prevColor)
1928 TREEVIEW_Invalidate(infoPtr, NULL);
1929
1930 return (LRESULT)prevColor;
1931 }
1932
1933
1934 static LRESULT
1935 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1936 {
1937 TRACE("\n");
1938 return (LRESULT)infoPtr->clrBk;
1939 }
1940
1941 static LRESULT
1942 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1943 {
1944 COLORREF prevColor = infoPtr->clrBk;
1945
1946 TRACE("\n");
1947 infoPtr->clrBk = newColor;
1948
1949 if (newColor != prevColor)
1950 TREEVIEW_Invalidate(infoPtr, NULL);
1951
1952 return (LRESULT)prevColor;
1953 }
1954
1955
1956 static LRESULT
1957 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1958 {
1959 TRACE("\n");
1960 return (LRESULT)infoPtr->clrInsertMark;
1961 }
1962
1963 static LRESULT
1964 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1965 {
1966 COLORREF prevColor = infoPtr->clrInsertMark;
1967
1968 TRACE("%x\n", color);
1969 infoPtr->clrInsertMark = color;
1970
1971 return (LRESULT)prevColor;
1972 }
1973
1974
1975 static LRESULT
1976 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
1977 {
1978 TRACE("%d %p\n", wParam, item);
1979
1980 if (!TREEVIEW_ValidItem(infoPtr, item))
1981 return 0;
1982
1983 infoPtr->insertBeforeorAfter = wParam;
1984 infoPtr->insertMarkItem = item;
1985
1986 TREEVIEW_Invalidate(infoPtr, NULL);
1987
1988 return 1;
1989 }
1990
1991
1992 /************************************************************************
1993 * Some serious braindamage here. lParam is a pointer to both the
1994 * input HTREEITEM and the output RECT.
1995 */
1996 static LRESULT
1997 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
1998 {
1999 TREEVIEW_ITEM *wineItem;
2000 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2001
2002 TRACE("\n");
2003 /*
2004 * validate parameters
2005 */
2006 if (pItem == NULL)
2007 return FALSE;
2008
2009 wineItem = *pItem;
2010 if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
2011 return FALSE;
2012
2013 /*
2014 * If wParam is TRUE return the text size otherwise return
2015 * the whole item size
2016 */
2017 if (fTextRect)
2018 {
2019 /* Windows does not send TVN_GETDISPINFO here. */
2020
2021 lpRect->top = wineItem->rect.top;
2022 lpRect->bottom = wineItem->rect.bottom;
2023
2024 lpRect->left = wineItem->textOffset;
2025 if (!wineItem->textWidth)
2026 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2027
2028 lpRect->right = wineItem->textOffset + wineItem->textWidth + 4;
2029 }
2030 else
2031 {
2032 *lpRect = wineItem->rect;
2033 }
2034
2035 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2036
2037 return TRUE;
2038 }
2039
2040 static inline LRESULT
2041 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2042 {
2043 /* Surprise! This does not take integral height into account. */
2044 return infoPtr->clientHeight / infoPtr->uItemHeight;
2045 }
2046
2047
2048 static LRESULT
2049 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2050 {
2051 TREEVIEW_ITEM *wineItem;
2052
2053 wineItem = tvItem->hItem;
2054 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2055 return FALSE;
2056
2057 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
2058
2059 if (tvItem->mask & TVIF_CHILDREN)
2060 {
2061 if (wineItem->cChildren==I_CHILDRENCALLBACK)
2062 FIXME("I_CHILDRENCALLBACK not supported\n");
2063 tvItem->cChildren = wineItem->cChildren;
2064 }
2065
2066 if (tvItem->mask & TVIF_HANDLE)
2067 tvItem->hItem = wineItem;
2068
2069 if (tvItem->mask & TVIF_IMAGE)
2070 tvItem->iImage = wineItem->iImage;
2071
2072 if (tvItem->mask & TVIF_INTEGRAL)
2073 tvItem->iIntegral = wineItem->iIntegral;
2074
2075 /* undocumented: windows ignores TVIF_PARAM and
2076 * * always sets lParam
2077 */
2078 tvItem->lParam = wineItem->lParam;
2079
2080 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2081 tvItem->iSelectedImage = wineItem->iSelectedImage;
2082
2083 if (tvItem->mask & TVIF_STATE)
2084 /* Careful here - Windows ignores the stateMask when you get the state
2085 That contradicts the documentation, but makes more common sense, masking
2086 retrieval in this way seems overkill */
2087 tvItem->state = wineItem->state;
2088
2089 if (tvItem->mask & TVIF_TEXT)
2090 {
2091 if (wineItem->pszText == NULL)
2092 {
2093 if (tvItem->cchTextMax > 0)
2094 tvItem->pszText[0] = '\0';
2095 }
2096 else if (isW)
2097 {
2098 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2099 {
2100 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2101 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2102 }
2103 else
2104 {
2105 lstrcpynW(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
2106 }
2107 }
2108 else
2109 {
2110 if (wineItem->pszText == LPSTR_TEXTCALLBACKW)
2111 {
2112 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2113 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2114 }
2115 else
2116 {
2117 WideCharToMultiByte(CP_ACP, 0, wineItem->pszText, -1,
2118 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2119 }
2120 }
2121 }
2122 TRACE("item <%p>, txt %p, img %p, mask %x\n",
2123 wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
2124
2125 return TRUE;
2126 }
2127
2128 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2129 * which is wrong. */
2130 static LRESULT
2131 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2132 {
2133 TREEVIEW_ITEM *wineItem;
2134 TREEVIEW_ITEM originalItem;
2135
2136 wineItem = tvItem->hItem;
2137
2138 TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
2139 tvItem->mask);
2140
2141 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2142 return FALSE;
2143
2144 /* store the original item values */
2145 originalItem = *wineItem;
2146
2147 if (!TREEVIEW_DoSetItemT(infoPtr, wineItem, tvItem, isW))
2148 return FALSE;
2149
2150 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2151 if ((tvItem->mask & TVIF_TEXT
2152 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2153 && ISVISIBLE(wineItem))
2154 {
2155 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
2156 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
2157 }
2158
2159 if (tvItem->mask != 0 && ISVISIBLE(wineItem))
2160 {
2161 /* The refresh updates everything, but we can't wait until then. */
2162 TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
2163
2164 /* if any of the item's values changed and it's not a callback, redraw the item */
2165 if (item_changed(&originalItem, wineItem, tvItem))
2166 {
2167 if (tvItem->mask & TVIF_INTEGRAL)
2168 {
2169 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
2170 TREEVIEW_UpdateScrollBars(infoPtr);
2171
2172 TREEVIEW_Invalidate(infoPtr, NULL);
2173 }
2174 else
2175 {
2176 TREEVIEW_UpdateScrollBars(infoPtr);
2177 TREEVIEW_Invalidate(infoPtr, wineItem);
2178 }
2179 }
2180 }
2181
2182 return TRUE;
2183 }
2184
2185 static LRESULT
2186 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
2187 {
2188 TRACE("\n");
2189
2190 if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
2191 return 0;
2192
2193 return (wineItem->state & mask);
2194 }
2195
2196 static LRESULT
2197 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
2198 {
2199 TREEVIEW_ITEM *retval;
2200
2201 retval = 0;
2202
2203 /* handle all the global data here */
2204 switch (which)
2205 {
2206 case TVGN_CHILD: /* Special case: child of 0 is root */
2207 if (wineItem)
2208 break;
2209 /* fall through */
2210 case TVGN_ROOT:
2211 retval = infoPtr->root->firstChild;
2212 break;
2213
2214 case TVGN_CARET:
2215 retval = infoPtr->selectedItem;
2216 break;
2217
2218 case TVGN_FIRSTVISIBLE:
2219 retval = infoPtr->firstVisible;
2220 break;
2221
2222 case TVGN_DROPHILITE:
2223 retval = infoPtr->dropItem;
2224 break;
2225
2226 case TVGN_LASTVISIBLE:
2227 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2228 break;
2229 }
2230
2231 if (retval)
2232 {
2233 TRACE("flags:%x, returns %p\n", which, retval);
2234 return (LRESULT)retval;
2235 }
2236
2237 if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
2238
2239 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
2240 return FALSE;
2241
2242 switch (which)
2243 {
2244 case TVGN_NEXT:
2245 retval = wineItem->nextSibling;
2246 break;
2247 case TVGN_PREVIOUS:
2248 retval = wineItem->prevSibling;
2249 break;
2250 case TVGN_PARENT:
2251 retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
2252 break;
2253 case TVGN_CHILD:
2254 retval = wineItem->firstChild;
2255 break;
2256 case TVGN_NEXTVISIBLE:
2257 retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2258 break;
2259 case TVGN_PREVIOUSVISIBLE:
2260 retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
2261 break;
2262 default:
2263 TRACE("Unknown msg %x,item %p\n", which, wineItem);
2264 break;
2265 }
2266
2267 TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
2268 return (LRESULT)retval;
2269 }
2270
2271
2272 static LRESULT
2273 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2274 {
2275 TRACE(" %d\n", infoPtr->uNumItems);
2276 return (LRESULT)infoPtr->uNumItems;
2277 }
2278
2279 static VOID
2280 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2281 {
2282 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2283 {
2284 static const unsigned int state_table[] = { 0, 2, 1 };
2285
2286 unsigned int state;
2287
2288 state = STATEIMAGEINDEX(item->state);
2289 TRACE("state:%x\n", state);
2290 item->state &= ~TVIS_STATEIMAGEMASK;
2291
2292 if (state < 3)
2293 state = state_table[state];
2294
2295 item->state |= INDEXTOSTATEIMAGEMASK(state);
2296
2297 TRACE("state:%x\n", state);
2298 TREEVIEW_Invalidate(infoPtr, item);
2299 }
2300 }
2301
2302
2303 /* Painting *************************************************************/
2304
2305 /* Draw the lines and expand button for an item. Also draws one section
2306 * of the line from item's parent to item's parent's next sibling. */
2307 static void
2308 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2309 {
2310 LONG centerx, centery;
2311 BOOL lar = ((infoPtr->dwStyle
2312 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2313 > TVS_LINESATROOT);
2314 HBRUSH hbr, hbrOld;
2315 COLORREF clrBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2316 infoPtr->clrBk;
2317
2318 if (!lar && item->iLevel == 0)
2319 return;
2320
2321 hbr = CreateSolidBrush(clrBk);
2322 hbrOld = SelectObject(hdc, hbr);
2323
2324 centerx = (item->linesOffset + item->stateOffset) / 2;
2325 centery = (item->rect.top + item->rect.bottom) / 2;
2326
2327 if (infoPtr->dwStyle & TVS_HASLINES)
2328 {
2329 HPEN hOldPen, hNewPen;
2330 HTREEITEM parent;
2331 LOGBRUSH lb;
2332
2333 /* Get a dotted grey pen */
2334 lb.lbStyle = BS_SOLID;
2335 lb.lbColor = infoPtr->clrLine;
2336 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2337 hOldPen = SelectObject(hdc, hNewPen);
2338
2339 /* Make sure the center is on a dot (using +2 instead
2340 * of +1 gives us pixel-by-pixel compat with native) */
2341 centery = (centery + 2) & ~1;
2342
2343 MoveToEx(hdc, item->stateOffset, centery, NULL);
2344 LineTo(hdc, centerx - 1, centery);
2345
2346 if (item->prevSibling || item->parent != infoPtr->root)
2347 {
2348 MoveToEx(hdc, centerx, item->rect.top, NULL);
2349 LineTo(hdc, centerx, centery);
2350 }
2351
2352 if (item->nextSibling)
2353 {
2354 MoveToEx(hdc, centerx, centery, NULL);
2355 LineTo(hdc, centerx, item->rect.bottom + 1);
2356 }
2357
2358 /* Draw the line from our parent to its next sibling. */
2359 parent = item->parent;
2360 while (parent != infoPtr->root)
2361 {
2362 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2363
2364 if (parent->nextSibling
2365 /* skip top-levels unless TVS_LINESATROOT */
2366 && parent->stateOffset > parent->linesOffset)
2367 {
2368 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2369 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2370 }
2371
2372 parent = parent->parent;
2373 }
2374
2375 SelectObject(hdc, hOldPen);
2376 DeleteObject(hNewPen);
2377 }
2378
2379 /*
2380 * Display the (+/-) signs
2381 */
2382
2383 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2384 {
2385 if (item->cChildren)
2386 {
2387 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2388 if (theme)
2389 {
2390 RECT glyphRect = item->rect;
2391 glyphRect.left = item->linesOffset;
2392 glyphRect.right = item->stateOffset;
2393 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2394 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2395 &glyphRect, NULL);
2396 }
2397 else
2398 {
2399 LONG height = item->rect.bottom - item->rect.top;
2400 LONG width = item->stateOffset - item->linesOffset;
2401 LONG rectsize = min(height, width) / 4;
2402 /* plussize = ceil(rectsize * 3/4) */
2403 LONG plussize = (rectsize + 1) * 3 / 4;
2404
2405 HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
2406 HPEN hOldPen = SelectObject(hdc, hNewPen);
2407
2408 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2409 centerx + rectsize + 2, centery + rectsize + 2);
2410
2411 SelectObject(hdc, hOldPen);
2412 DeleteObject(hNewPen);
2413
2414 if (height < 18 || width < 18)
2415 {
2416 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2417 LineTo(hdc, centerx + plussize, centery);
2418
2419 if (!(item->state & TVIS_EXPANDED))
2420 {
2421 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2422 LineTo(hdc, centerx, centery + plussize);
2423 }
2424 }
2425 else
2426 {
2427 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2428 centerx + plussize, centery + 2);
2429
2430 if (!(item->state & TVIS_EXPANDED))
2431 {
2432 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2433 centerx + 2, centery + plussize);
2434 SetPixel(hdc, centerx - 1, centery, clrBk);
2435 SetPixel(hdc, centerx + 1, centery, clrBk);
2436 }
2437 }
2438 }
2439 }
2440 }
2441 SelectObject(hdc, hbrOld);
2442 DeleteObject(hbr);
2443 }
2444
2445 static void
2446 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
2447 {
2448 INT cditem;
2449 HFONT hOldFont;
2450 COLORREF oldTextColor, oldTextBkColor;
2451 int centery;
2452 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2453 NMTVCUSTOMDRAW nmcdhdr;
2454
2455 TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
2456
2457 /* - If item is drop target or it is selected and window is in focus -
2458 * use blue background (COLOR_HIGHLIGHT).
2459 * - If item is selected, window is not in focus, but it has style
2460 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2461 * - Otherwise - use background color
2462 */
2463 if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
2464 ((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
2465 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2466 {
2467 if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
2468 {
2469 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2470 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2471 }
2472 else
2473 {
2474 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2475 if (infoPtr->clrText == -1)
2476 nmcdhdr.clrText = comctl32_color.clrWindowText;
2477 else
2478 nmcdhdr.clrText = infoPtr->clrText;
2479 }
2480 }
2481 else
2482 {
2483 nmcdhdr.clrTextBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2484 infoPtr->clrBk;
2485 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == infoPtr->hotItem))
2486 nmcdhdr.clrText = comctl32_color.clrHighlight;
2487 else if (infoPtr->clrText == -1)
2488 nmcdhdr.clrText = comctl32_color.clrWindowText;
2489 else
2490 nmcdhdr.clrText = infoPtr->clrText;
2491 }
2492
2493 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
2494
2495 /* The custom draw handler can query the text rectangle,
2496 * so get ready. */
2497 /* should already be known, set to 0 when changed */
2498 if (!wineItem->textWidth)
2499 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2500
2501 cditem = 0;
2502
2503 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2504 {
2505 cditem = TREEVIEW_SendCustomDrawItemNotify
2506 (infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT, &nmcdhdr);
2507 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2508
2509 if (cditem & CDRF_SKIPDEFAULT)
2510 {
2511 SelectObject(hdc, hOldFont);
2512 return;
2513 }
2514 }
2515
2516 if (cditem & CDRF_NEWFONT)
2517 TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
2518
2519 TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
2520
2521 /* Set colors. Custom draw handler can change these so we do this after it. */
2522 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2523 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2524
2525 centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
2526
2527 /*
2528 * Display the images associated with this item
2529 */
2530 {
2531 INT imageIndex;
2532
2533 /* State images are displayed to the left of the Normal image
2534 * image number is in state; zero should be `display no image'.
2535 */
2536 imageIndex = STATEIMAGEINDEX(wineItem->state);
2537
2538 if (infoPtr->himlState && imageIndex)
2539 {
2540 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2541 wineItem->stateOffset,
2542 centery - infoPtr->stateImageHeight / 2,
2543 ILD_NORMAL);
2544 }
2545
2546 /* Now, draw the normal image; can be either selected or
2547 * non-selected image.
2548 */
2549
2550 if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
2551 {
2552 /* The item is currently selected */
2553 imageIndex = wineItem->iSelectedImage;
2554 }
2555 else
2556 {
2557 /* The item is not selected */
2558 imageIndex = wineItem->iImage;
2559 }
2560
2561 if (infoPtr->himlNormal)
2562 {
2563 int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
2564
2565 ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
2566 wineItem->imageOffset,
2567 centery - infoPtr->normalImageHeight / 2,
2568 ILD_NORMAL | ovlIdx);
2569 }
2570 }
2571
2572
2573 /*
2574 * Display the text associated with this item
2575 */
2576
2577 /* Don't paint item's text if it's being edited */
2578 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
2579 {
2580 if (wineItem->pszText)
2581 {
2582 RECT rcText;
2583
2584 rcText.top = wineItem->rect.top;
2585 rcText.bottom = wineItem->rect.bottom;
2586 rcText.left = wineItem->textOffset;
2587 rcText.right = rcText.left + wineItem->textWidth + 4;
2588
2589 TRACE("drawing text %s at (%s)\n",
2590 debugstr_w(wineItem->pszText), wine_dbgstr_rect(&rcText));
2591
2592 /* Draw it */
2593 ExtTextOutW(hdc, rcText.left + 2, rcText.top + 1,
2594 ETO_CLIPPED | ETO_OPAQUE,
2595 &rcText,
2596 wineItem->pszText,
2597 lstrlenW(wineItem->pszText),
2598 NULL);
2599
2600 /* Draw the box around the selected item */
2601 if ((wineItem == infoPtr->selectedItem) && inFocus)
2602 {
2603 DrawFocusRect(hdc,&rcText);
2604 }
2605
2606 }
2607 }
2608
2609 /* Draw insertion mark if necessary */
2610
2611 if (infoPtr->insertMarkItem)
2612 TRACE("item:%d,mark:%p\n",
2613 TREEVIEW_GetItemIndex(infoPtr, wineItem),
2614 infoPtr->insertMarkItem);
2615
2616 if (wineItem == infoPtr->insertMarkItem)
2617 {
2618 HPEN hNewPen, hOldPen;
2619 int offset;
2620 int left, right;
2621
2622 hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
2623 hOldPen = SelectObject(hdc, hNewPen);
2624
2625 if (infoPtr->insertBeforeorAfter)
2626 offset = wineItem->rect.bottom - 1;
2627 else
2628 offset = wineItem->rect.top + 1;
2629
2630 left = wineItem->textOffset - 2;
2631 right = wineItem->textOffset + wineItem->textWidth + 2;
2632
2633 MoveToEx(hdc, left, offset - 3, NULL);
2634 LineTo(hdc, left, offset + 4);
2635
2636 MoveToEx(hdc, left, offset, NULL);
2637 LineTo(hdc, right + 1, offset);
2638
2639 MoveToEx(hdc, right, offset + 3, NULL);
2640 LineTo(hdc, right, offset - 4);
2641
2642 SelectObject(hdc, hOldPen);
2643 DeleteObject(hNewPen);
2644 }
2645
2646 if (cditem & CDRF_NOTIFYPOSTPAINT)
2647 {
2648 cditem = TREEVIEW_SendCustomDrawItemNotify
2649 (infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2650 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2651 }
2652
2653 /* Restore the hdc state */
2654 SetTextColor(hdc, oldTextColor);
2655 SetBkColor(hdc, oldTextBkColor);
2656 SelectObject(hdc, hOldFont);
2657 }
2658
2659 /* Computes treeHeight and treeWidth and updates the scroll bars.
2660 */
2661 static void
2662 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2663 {
2664 TREEVIEW_ITEM *wineItem;
2665 HWND hwnd = infoPtr->hwnd;
2666 BOOL vert = FALSE;
2667 BOOL horz = FALSE;
2668 SCROLLINFO si;
2669 LONG scrollX = infoPtr->scrollX;
2670
2671 infoPtr->treeWidth = 0;
2672 infoPtr->treeHeight = 0;
2673
2674 /* We iterate through all visible items in order to get the tree height
2675 * and width */
2676 wineItem = infoPtr->root->firstChild;
2677
2678 while (wineItem != NULL)
2679 {
2680 if (ISVISIBLE(wineItem))
2681 {
2682 /* actually we draw text at textOffset + 2 */
2683 if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
2684 infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
2685
2686 /* This is scroll-adjusted, but we fix this below. */
2687 infoPtr->treeHeight = wineItem->rect.bottom;
2688 }
2689
2690 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
2691 }
2692
2693 /* Fix the scroll adjusted treeHeight and treeWidth. */
2694 if (infoPtr->root->firstChild)
2695 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2696
2697 infoPtr->treeWidth += infoPtr->scrollX;
2698
2699 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2700
2701 /* Adding one scroll bar may take up enough space that it forces us
2702 * to add the other as well. */
2703 if (infoPtr->treeHeight > infoPtr->clientHeight)
2704 {
2705 vert = TRUE;
2706
2707 if (infoPtr->treeWidth
2708 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2709 horz = TRUE;
2710 }
2711 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2712 horz = TRUE;
2713
2714 if (!vert && horz && infoPtr->treeHeight
2715 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2716 vert = TRUE;
2717
2718 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2719
2720 si.cbSize = sizeof(SCROLLINFO);
2721 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2722 si.nMin = 0;
2723
2724 if (vert)
2725 {
2726 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2727 if ( si.nPage && NULL != infoPtr->firstVisible)
2728 {
2729 si.nPos = infoPtr->firstVisible->visibleOrder;
2730 si.nMax = infoPtr->maxVisibleOrder - 1;
2731
2732 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2733
2734 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2735 ShowScrollBar(hwnd, SB_VERT, TRUE);
2736 infoPtr->uInternalStatus |= TV_VSCROLL;
2737 }
2738 else
2739 {
2740 if (infoPtr->uInternalStatus & TV_VSCROLL)
2741 ShowScrollBar(hwnd, SB_VERT, FALSE);
2742 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2743 }
2744 }
2745 else
2746 {
2747 if (infoPtr->uInternalStatus & TV_VSCROLL)
2748 ShowScrollBar(hwnd, SB_VERT, FALSE);
2749 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2750 }
2751
2752 if (horz)
2753 {
2754 si.nPage = infoPtr->clientWidth;
2755 si.nPos = infoPtr->scrollX;
2756 si.nMax = infoPtr->treeWidth - 1;
2757
2758 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2759 {
2760 si.nPos = si.nMax - max( si.nPage-1, 0 );
2761 scrollX = si.nPos;
2762 }
2763
2764 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2765 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2766 infoPtr->uInternalStatus |= TV_HSCROLL;
2767
2768 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2769 TREEVIEW_HScroll(infoPtr,
2770 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2771 }
2772 else
2773 {
2774 if (infoPtr->uInternalStatus & TV_HSCROLL)
2775 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2776 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2777
2778 scrollX = 0;
2779 if (infoPtr->scrollX != 0)
2780 {
2781 TREEVIEW_HScroll(infoPtr,
2782 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2783 }
2784 }
2785
2786 if (!horz)
2787 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2788 }
2789
2790 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2791 static LRESULT
2792 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hDC)
2793 {
2794 HBRUSH hBrush;
2795 COLORREF clrBk = infoPtr->clrBk == -1 ? comctl32_color.clrWindow:
2796 infoPtr->clrBk;
2797 RECT rect;
2798
2799 hBrush = CreateSolidBrush(clrBk);
2800 GetClientRect(infoPtr->hwnd, &rect);
2801 FillRect(hDC, &rect, hBrush);
2802 DeleteObject(hBrush);
2803
2804 return 1;
2805 }
2806
2807 static void
2808 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2809 {
2810 HWND hwnd = infoPtr->hwnd;
2811 RECT rect = *rc;
2812 TREEVIEW_ITEM *wineItem;
2813
2814 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2815 {
2816 TRACE("empty window\n");
2817 return;
2818 }
2819
2820 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2821 hdc, rect);
2822
2823 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2824 {
2825 ReleaseDC(hwnd, hdc);
2826 return;
2827 }
2828
2829 for (wineItem = infoPtr->root->firstChild;
2830 wineItem != NULL;
2831 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
2832 {
2833 if (ISVISIBLE(wineItem))
2834 {
2835 /* Avoid unneeded calculations */
2836 if (wineItem->rect.top > rect.bottom)
2837 break;
2838 if (wineItem->rect.bottom < rect.top)
2839 continue;
2840
2841 TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
2842 }
2843 }
2844
2845 TREEVIEW_UpdateScrollBars(infoPtr);
2846
2847 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2848 infoPtr->cdmode =
2849 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2850 }
2851
2852 static void
2853 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2854 {
2855 if (item != NULL)
2856 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2857 else
2858 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2859 }
2860
2861 static LRESULT
2862 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
2863 {
2864 HDC hdc;
2865 PAINTSTRUCT ps;
2866 RECT rc;
2867
2868 TRACE("\n");
2869
2870 if (wParam)
2871 {
2872 hdc = (HDC)wParam;
2873 GetClientRect(infoPtr->hwnd, &rc);
2874 TREEVIEW_EraseBackground(infoPtr, hdc);
2875 }
2876 else
2877 {
2878 hdc = BeginPaint(infoPtr->hwnd, &ps);
2879 rc = ps.rcPaint;
2880 }
2881
2882 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
2883 TREEVIEW_Refresh(infoPtr, hdc, &rc);
2884
2885 if (!wParam)
2886 EndPaint(infoPtr->hwnd, &ps);
2887
2888 return 0;
2889 }
2890
2891
2892 /* Sorting **************************************************************/
2893
2894 /***************************************************************************
2895 * Forward the DPA local callback to the treeview owner callback
2896 */
2897 static INT WINAPI
2898 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
2899 const TVSORTCB *pCallBackSort)
2900 {
2901 /* Forward the call to the client-defined callback */
2902 return pCallBackSort->lpfnCompare(first->lParam,
2903 second->lParam,
2904 pCallBackSort->lParam);
2905 }
2906
2907 /***************************************************************************
2908 * Treeview native sort routine: sort on item text.
2909 */
2910 static INT WINAPI
2911 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
2912 const TREEVIEW_INFO *infoPtr)
2913 {
2914 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
2915 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
2916
2917 if(first->pszText && second->pszText)
2918 return lstrcmpiW(first->pszText, second->pszText);
2919 else if(first->pszText)
2920 return -1;
2921 else if(second->pszText)
2922 return 1;
2923 else
2924 return 0;
2925 }
2926
2927 /* Returns the number of physical children belonging to item. */
2928 static INT
2929 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
2930 {
2931 INT cChildren = 0;
2932 HTREEITEM hti;
2933
2934 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
2935 cChildren++;
2936
2937 return cChildren;
2938 }
2939
2940 /* Returns a DPA containing a pointer to each physical child of item in
2941 * sibling order. If item has no children, an empty DPA is returned. */
2942 static HDPA
2943 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
2944 {
2945 HTREEITEM child = item->firstChild;
2946
2947 HDPA list = DPA_Create(8);
2948 if (list == 0) return NULL;
2949
2950 for (child = item->firstChild; child != NULL; child = child->nextSibling)
2951 {
2952 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
2953 {
2954 DPA_Destroy(list);
2955 return NULL;
2956 }
2957 }
2958
2959 return list;
2960 }
2961
2962 /***************************************************************************
2963 * Setup the treeview structure with regards of the sort method
2964 * and sort the children of the TV item specified in lParam
2965 * fRecurse: currently unused. Should be zero.
2966 * parent: if pSort!=NULL, should equal pSort->hParent.
2967 * otherwise, item which child items are to be sorted.
2968 * pSort: sort method info. if NULL, sort on item text.
2969 * if non-NULL, sort on item's lParam content, and let the
2970 * application decide what that means. See also TVM_SORTCHILDRENCB.
2971 */
2972
2973 static LRESULT
2974 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
2975 LPTVSORTCB pSort)
2976 {
2977 INT cChildren;
2978 PFNDPACOMPARE pfnCompare;
2979 LPARAM lpCompare;
2980
2981 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
2982 if (parent == TVI_ROOT || parent == NULL)
2983 parent = infoPtr->root;
2984
2985 /* Check for a valid handle to the parent item */
2986 if (!TREEVIEW_ValidItem(infoPtr, parent))
2987 {
2988 ERR("invalid item hParent=%p\n", parent);
2989 return FALSE;
2990 }
2991
2992 if (pSort)
2993 {
2994 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
2995 lpCompare = (LPARAM)pSort;
2996 }
2997 else
2998 {
2999 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3000 lpCompare = (LPARAM)infoPtr;
3001 }
3002
3003 cChildren = TREEVIEW_CountChildren(parent);
3004
3005 /* Make sure there is something to sort */
3006 if (cChildren > 1)
3007 {
3008 /* TREEVIEW_ITEM rechaining */
3009 INT count = 0;
3010 HTREEITEM item = 0;
3011 HTREEITEM nextItem = 0;
3012 HTREEITEM prevItem = 0;
3013
3014 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3015
3016 if (sortList == NULL)
3017 return FALSE;
3018
3019 /* let DPA sort the list */
3020 DPA_Sort(sortList, pfnCompare, lpCompare);
3021
3022 /* The order of DPA entries has been changed, so fixup the
3023 * nextSibling and prevSibling pointers. */
3024
3025 item = DPA_GetPtr(sortList, count++);
3026 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3027 {
3028 /* link the two current item together */
3029 item->nextSibling = nextItem;
3030 nextItem->prevSibling = item;
3031
3032 if (prevItem == NULL)
3033 {
3034 /* this is the first item, update the parent */
3035 parent->firstChild = item;
3036 item->prevSibling = NULL;
3037 }
3038 else
3039 {
3040 /* fix the back chaining */
3041 item->prevSibling = prevItem;
3042 }
3043
3044 /* get ready for the next one */
3045 prevItem = item;
3046 item = nextItem;
3047 }
3048
3049 /* the last item is pointed to by item and never has a sibling */
3050 item->nextSibling = NULL;
3051 parent->lastChild = item;
3052
3053 DPA_Destroy(sortList);
3054
3055 TREEVIEW_VerifyTree(infoPtr);
3056
3057 if (parent->state & TVIS_EXPANDED)
3058 {
3059 int visOrder = infoPtr->firstVisible->visibleOrder;
3060
3061 if (parent == infoPtr->root)
3062 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3063 else
3064 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3065
3066 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3067 {
3068 TREEVIEW_ITEM *item;
3069
3070 for (item = infoPtr->root->firstChild; item != NULL;
3071 item = TREEVIEW_GetNextListItem(infoPtr, item))
3072 {
3073 if (item->visibleOrder == visOrder)
3074 break;
3075 }
3076
3077 if (!item) item = parent->firstChild;
3078 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3079 }
3080
3081 TREEVIEW_Invalidate(infoPtr, NULL);
3082 }
3083
3084 return TRUE;
3085 }
3086 return FALSE;
3087 }
3088
3089
3090 /***************************************************************************
3091 * Setup the treeview structure with regards of the sort method
3092 * and sort the children of the TV item specified in lParam
3093 */
3094 static LRESULT
3095 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3096 {
3097 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3098 }
3099
3100
3101 /***************************************************************************
3102 * Sort the children of the TV item specified in lParam.
3103 */
3104 static LRESULT
3105 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3106 {
3107 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3108 }
3109
3110
3111 /* Expansion/Collapse ***************************************************/
3112
3113 static BOOL
3114 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3115 UINT action)
3116 {
3117 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3118 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3119 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3120 0, wineItem);
3121 }
3122
3123 static VOID
3124 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3125 UINT action)
3126 {
3127 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3128 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3129 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3130 0, wineItem);
3131 }
3132
3133
3134 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3135 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3136 static BOOL
3137 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3138 BOOL bRemoveChildren, BOOL bUser)
3139 {
3140 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3141 BOOL bSetSelection, bSetFirstVisible;
3142 RECT scrollRect;
3143 LONG scrollDist = 0;
3144 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3145
3146 TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3147
3148 if (!(wineItem->state & TVIS_EXPANDED))
3149 return FALSE;
3150
3151 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3152 TREEVIEW_SendExpanding(infoPtr, wineItem, action);
3153
3154 if (wineItem->firstChild == NULL)
3155 return FALSE;
3156
3157 wineItem->state &= ~TVIS_EXPANDED;
3158
3159 if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
3160 TREEVIEW_SendExpanded(infoPtr, wineItem, action);
3161
3162 bSetSelection = (infoPtr->selectedItem != NULL
3163 && TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
3164
3165 bSetFirstVisible = (infoPtr->firstVisible != NULL
3166 && TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
3167
3168 tmpItem = wineItem;
3169 while (tmpItem)
3170 {
3171 if (tmpItem->nextSibling)
3172 {
3173 nextItem = tmpItem->nextSibling;
3174 break;
3175 }
3176 tmpItem = tmpItem->parent;
3177 }
3178
3179 if (nextItem)
3180 scrollDist = nextItem->rect.top;
3181
3182 if (bRemoveChildren)
3183 {
3184 INT old_cChildren = wineItem->cChildren;
3185 TRACE("TVE_COLLAPSERESET\n");
3186 wineItem->state &= ~TVIS_EXPANDEDONCE;
3187 TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
3188 wineItem->cChildren = old_cChildren;
3189 }
3190
3191 if (wineItem->firstChild)
3192 {
3193 TREEVIEW_ITEM *item, *sibling;
3194
3195 sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
3196
3197 for (item = wineItem->firstChild; item != sibling;
3198 item = TREEVIEW_GetNextListItem(infoPtr, item))
3199 {
3200 item->visibleOrder = -1;
3201 }
3202 }
3203
3204 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3205
3206 if (nextItem)
3207 scrollDist = -(scrollDist - nextItem->rect.top);
3208
3209 if (bSetSelection)
3210 {
3211 /* Don't call DoSelectItem, it sends notifications. */
3212 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3213 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3214 wineItem->state |= TVIS_SELECTED;
3215 infoPtr->selectedItem = wineItem;
3216 }
3217
3218 TREEVIEW_UpdateScrollBars(infoPtr);
3219
3220 scrollRect.left = 0;
3221 scrollRect.right = infoPtr->clientWidth;
3222 scrollRect.bottom = infoPtr->clientHeight;
3223
3224 if (nextItem)
3225 {
3226 scrollRect.top = nextItem->rect.top;
3227
3228 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3229 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3230 TREEVIEW_Invalidate(infoPtr, wineItem);
3231 } else {
3232 scrollRect.top = wineItem->rect.top;
3233 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3234 }
3235
3236 TREEVIEW_SetFirstVisible(infoPtr,
3237 bSetFirstVisible ? wineItem : infoPtr->firstVisible,
3238 TRUE);
3239
3240 return TRUE;
3241 }
3242
3243 static BOOL
3244 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
3245 BOOL bExpandPartial, BOOL bUser)
3246 {
3247 LONG scrollDist;
3248 LONG orgNextTop = 0;
3249 RECT scrollRect;
3250 TREEVIEW_ITEM *nextItem, *tmpItem;
3251
3252 TRACE("\n");
3253
3254 if (wineItem->state & TVIS_EXPANDED)
3255 return TRUE;
3256
3257 tmpItem = wineItem; nextItem = NULL;
3258 while (tmpItem)
3259 {
3260 if (tmpItem->nextSibling)
3261 {
3262 nextItem = tmpItem->nextSibling;
3263 break;
3264 }
3265 tmpItem = tmpItem->parent;
3266 }
3267
3268 if (nextItem)
3269 orgNextTop = nextItem->rect.top;
3270
3271 TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
3272
3273 if (bUser || ((wineItem->cChildren != 0) &&
3274 !(wineItem->state & TVIS_EXPANDEDONCE)))
3275 {
3276 if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
3277 {
3278 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3279 return FALSE;
3280 }
3281
3282 if (!wineItem->firstChild)
3283 return FALSE;
3284
3285 wineItem->state |= TVIS_EXPANDED;
3286 TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
3287 wineItem->state |= TVIS_EXPANDEDONCE;
3288 }
3289 else
3290 {
3291 if (!wineItem->firstChild)
3292 return FALSE;
3293
3294 /* this item has already been expanded */
3295 wineItem->state |= TVIS_EXPANDED;
3296 }
3297
3298 if (bExpandPartial)
3299 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3300
3301 if (ISVISIBLE(wineItem))
3302 {
3303 TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
3304 TREEVIEW_UpdateSubTree(infoPtr, wineItem);
3305 TREEVIEW_UpdateScrollBars(infoPtr);
3306
3307 scrollRect.left = 0;
3308 scrollRect.bottom = infoPtr->treeHeight;
3309 scrollRect.right = infoPtr->clientWidth;
3310 if (nextItem)
3311 {
3312 scrollDist = nextItem->rect.top - orgNextTop;
3313 scrollRect.top = orgNextTop;
3314
3315 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3316 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3317 TREEVIEW_Invalidate (infoPtr, wineItem);
3318 } else {
3319 scrollRect.top = wineItem->rect.top;
3320 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3321 }
3322
3323 /* Scroll up so that as many children as possible are visible.
3324 * This fails when expanding causes an HScroll bar to appear, but we
3325 * don't know that yet, so the last item is obscured. */
3326 if (wineItem->firstChild != NULL)
3327 {
3328 int nChildren = wineItem->lastChild->visibleOrder
3329 - wineItem->firstChild->visibleOrder + 1;
3330
3331 int visible_pos = wineItem->visibleOrder
3332 - infoPtr->firstVisible->visibleOrder;
3333
3334 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3335
3336 if (visible_pos > 0 && nChildren > rows_below)
3337 {
3338 int scroll = nChildren - rows_below;
3339
3340 if (scroll > visible_pos)
3341 scroll = visible_pos;
3342
3343 if (scroll > 0)
3344 {
3345 TREEVIEW_ITEM *newFirstVisible
3346 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3347 scroll);
3348
3349
3350 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3351 }
3352 }
3353 }
3354 }
3355
3356 return TRUE;
3357 }
3358
3359 static BOOL
3360 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
3361 {
3362 TRACE("\n");
3363
3364 if (wineItem->state & TVIS_EXPANDED)
3365 return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
3366 else
3367 return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
3368 }
3369
3370 static VOID
3371 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3372 {
3373 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3374
3375 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3376 {
3377 if (TREEVIEW_HasChildren(infoPtr, item))
3378 TREEVIEW_ExpandAll(infoPtr, item);
3379 }
3380 }
3381
3382 /* Note:If the specified item is the child of a collapsed parent item,
3383 the parent's list of child items is (recursively) expanded to reveal the
3384 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3385 know if it also applies here.
3386 */
3387
3388 static LRESULT
3389 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
3390 {
3391 if (!TREEVIEW_ValidItem(infoPtr, wineItem))
3392 return 0;
3393
3394 TRACE("For (%s) item:%d, flags %x, state:%d\n",
3395 TREEVIEW_ItemName(wineItem), flag,
3396 TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
3397
3398 switch (flag & TVE_TOGGLE)
3399 {
3400 case TVE_COLLAPSE:
3401 return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
3402 FALSE);
3403
3404 case TVE_EXPAND:
3405 return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
3406 FALSE);
3407
3408 case TVE_TOGGLE:
3409 return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
3410
3411 default:
3412 return 0;
3413 }
3414
3415 #if 0
3416 TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
3417 #endif
3418 }
3419
3420 /* Hit-Testing **********************************************************/
3421
3422 static TREEVIEW_ITEM *
3423 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3424 {
3425 TREEVIEW_ITEM *wineItem;
3426 LONG row;
3427
3428 if (!infoPtr->firstVisible)
3429 return NULL;
3430
3431 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3432
3433 for (wineItem = infoPtr->firstVisible; wineItem != NULL;
3434 wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
3435 {
3436 if (row >= wineItem->visibleOrder
3437 && row < wineItem->visibleOrder + wineItem->iIntegral)
3438 break;
3439 }
3440
3441 return wineItem;
3442 }
3443
3444 static LRESULT
3445 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3446 {
3447 TREEVIEW_ITEM *wineItem;
3448 RECT rect;
3449 UINT status;
3450 LONG x, y;
3451
3452 lpht->hItem = 0;
3453 GetClientRect(infoPtr->hwnd, &rect);
3454 status = 0;
3455 x = lpht->pt.x;
3456 y = lpht->pt.y;
3457
3458 if (x < rect.left)
3459 {
3460 status |= TVHT_TOLEFT;
3461 }
3462 else if (x > rect.right)
3463 {
3464 status |= TVHT_TORIGHT;
3465 }
3466
3467 if (y < rect.top)
3468 {
3469 status |= TVHT_ABOVE;
3470 }
3471 else if (y > rect.bottom)
3472 {
3473 status |= TVHT_BELOW;
3474 }
3475
3476 if (status)
3477 {
3478 lpht->flags = status;
3479 return 0;
3480 }
3481
3482 wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3483 if (!wineItem)
3484 {
3485 lpht->flags = TVHT_NOWHERE;
3486 return 0;
3487 }
3488
3489 if (x >= wineItem->textOffset + wineItem->textWidth)
3490 {
3491 lpht->flags = TVHT_ONITEMRIGHT;
3492 }
3493 else if (x >= wineItem->textOffset)
3494 {
3495 lpht->flags = TVHT_ONITEMLABEL;
3496 }
3497 else if (x >= wineItem->imageOffset)
3498 {
3499 lpht->flags = TVHT_ONITEMICON;
3500 }
3501 else if (x >= wineItem->stateOffset)
3502 {
3503 lpht->flags = TVHT_ONITEMSTATEICON;
3504 }
3505 else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3506 {
3507 lpht->flags = TVHT_ONITEMBUTTON;
3508 }
3509 else
3510 {
3511 lpht->flags = TVHT_ONITEMINDENT;
3512 }
3513
3514 lpht->hItem = wineItem;
3515 TRACE("(%d,%d):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3516
3517 return (LRESULT)wineItem;
3518 }
3519
3520 /* Item Label Editing ***************************************************/
3521
3522 static LRESULT
3523 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3524 {
3525 return (LRESULT)infoPtr->hwndEdit;
3526 }
3527
3528 static LRESULT CALLBACK
3529 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3530 {
3531 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3532 BOOL bCancel = FALSE;
3533 LRESULT rc;
3534
3535 switch (uMsg)
3536 {
3537 case WM_PAINT:
3538 TRACE("WM_PAINT start\n");
3539 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3540 lParam);
3541 TRACE("WM_PAINT done\n");
3542 return rc;
3543
3544 case WM_KILLFOCUS:
3545 if (infoPtr->bIgnoreEditKillFocus)
3546 return TRUE;
3547 break;
3548
3549 case WM_GETDLGCODE:
3550 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3551
3552 case WM_KEYDOWN:
3553 if (wParam == (WPARAM)VK_ESCAPE)
3554 {
3555 bCancel = TRUE;
3556 break;
3557 }
3558 else if (wParam == (WPARAM)VK_RETURN)
3559 {
3560 break;
3561 }
3562
3563 /* fall through */
3564 default:
3565 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3566 }
3567
3568 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3569 /* eg. Using a messagebox */
3570
3571 infoPtr->bIgnoreEditKillFocus = TRUE;
3572 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3573 infoPtr->bIgnoreEditKillFocus = FALSE;
3574
3575 return 0;
3576 }
3577
3578
3579 /* should handle edit control messages here */
3580
3581 static LRESULT
3582 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3583 {
3584 TRACE("%lx %ld\n", wParam, lParam);
3585
3586 switch (HIWORD(wParam))
3587 {
3588 case EN_UPDATE:
3589 {
3590 /*
3591 * Adjust the edit window size
3592 */
3593 WCHAR buffer[1024];
3594 TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
3595 HDC hdc = GetDC(infoPtr->hwndEdit);
3596 SIZE sz;
3597 HFONT hFont, hOldFont = 0;
3598
3599 infoPtr->bLabelChanged = TRUE;
3600
3601 GetWindowTextW(infoPtr->hwndEdit, buffer, sizeof(buffer)/sizeof(buffer[0]));
3602
3603 /* Select font to get the right dimension of the string */
3604 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3605
3606 if (hFont != 0)
3607 {
3608 hOldFont = SelectObject(hdc, hFont);
3609 }
3610
3611 if (GetTextExtentPoint32W(hdc, buffer, strlenW(buffer), &sz))
3612 {
3613 TEXTMETRICW textMetric;
3614
3615 /* Add Extra spacing for the next character */
3616 GetTextMetricsW(hdc, &textMetric);
3617 sz.cx += (textMetric.tmMaxCharWidth * 2);
3618
3619 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3620 sz.cx = min(sz.cx,
3621 infoPtr->clientWidth - editItem->textOffset + 2);
3622
3623 SetWindowPos(infoPtr->hwndEdit,