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CB_GETTEXT: Use lpBuffer instead of lpText for LB_GETTEXT32, handle 0
[wine/multimedia.git] / controls / listbox.c
blobdd1a69f718b6165a6fcd5fe5b5b627484dac221d
1 /*
2 * Listbox controls
3 *
4 * Copyright 1996 Alexandre Julliard
5 */
6
7 #include <string.h>
8 #include "windows.h"
9 #include "winerror.h"
10 #include "drive.h"
11 #include "heap.h"
12 #include "spy.h"
13 #include "win.h"
14 #include "combo.h"
15 #include "debug.h"
16 #include "tweak.h"
17
18 /* Unimplemented yet:
19 * - LBS_NOSEL
20 * - LBS_USETABSTOPS
21 * - Unicode
22 * - Locale handling
23 */
24
25 /* Items array granularity */
26 #define LB_ARRAY_GRANULARITY 16
27
28 /* Scrolling timeout in ms */
29 #define LB_SCROLL_TIMEOUT 50
30
31 /* Listbox system timer id */
32 #define LB_TIMER_ID 2
33
34 /* Item structure */
35 typedef struct
36 {
37 LPSTR str; /* Item text */
38 BOOL32 selected; /* Is item selected? */
39 UINT32 height; /* Item height (only for OWNERDRAWVARIABLE) */
40 DWORD data; /* User data */
41 } LB_ITEMDATA;
42
43 /* Listbox structure */
44 typedef struct
45 {
46 HANDLE32 heap; /* Heap for this listbox */
47 HWND32 owner; /* Owner window to send notifications to */
48 UINT32 style; /* Window style */
49 INT32 width; /* Window width */
50 INT32 height; /* Window height */
51 LB_ITEMDATA *items; /* Array of items */
52 INT32 nb_items; /* Number of items */
53 INT32 top_item; /* Top visible item */
54 INT32 selected_item; /* Selected item */
55 INT32 focus_item; /* Item that has the focus */
56 INT32 anchor_item; /* Anchor item for extended selection */
57 INT32 item_height; /* Default item height */
58 INT32 page_size; /* Items per listbox page */
59 INT32 column_width; /* Column width for multi-column listboxes */
60 INT32 horz_extent; /* Horizontal extent (0 if no hscroll) */
61 INT32 horz_pos; /* Horizontal position */
62 INT32 nb_tabs; /* Number of tabs in array */
63 INT32 *tabs; /* Array of tabs */
64 BOOL32 caret_on; /* Is caret on? */
65 HFONT32 font; /* Current font */
66 LCID locale; /* Current locale for string comparisons */
67 LPHEADCOMBO lphc; /* ComboLBox */
68 } LB_DESCR;
69
70
71 #define IS_OWNERDRAW(descr) \
72 ((descr)->style & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE))
73
74 #define HAS_STRINGS(descr) \
75 (!IS_OWNERDRAW(descr) || ((descr)->style & LBS_HASSTRINGS))
76
77 #define SEND_NOTIFICATION(wnd,descr,code) \
78 (SendMessage32A( (descr)->owner, WM_COMMAND, \
79 MAKEWPARAM((((descr)->lphc)?ID_CB_LISTBOX:(wnd)->wIDmenu), (code) ), (wnd)->hwndSelf ))
80
81 /* Current timer status */
82 typedef enum
83 {
84 LB_TIMER_NONE,
85 LB_TIMER_UP,
86 LB_TIMER_LEFT,
87 LB_TIMER_DOWN,
88 LB_TIMER_RIGHT
89 } TIMER_DIRECTION;
90
91 static TIMER_DIRECTION LISTBOX_Timer = LB_TIMER_NONE;
92
93
94 /***********************************************************************
95 * LISTBOX_Dump
96 */
97 void LISTBOX_Dump( WND *wnd )
98 {
99 INT32 i;
100 LB_ITEMDATA *item;
101 LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
102
103 DUMP( "Listbox:\n" );
104 DUMP( "hwnd=%04x descr=%08x heap=%08x items=%d top=%d\n",
105 wnd->hwndSelf, (UINT32)descr, descr->heap, descr->nb_items,
106 descr->top_item );
107 for (i = 0, item = descr->items; i < descr->nb_items; i++, item++)
108 {
109 DUMP( "%4d: %-40s %d %08lx %3d\n",
110 i, item->str, item->selected, item->data, item->height );
111 }
112 }
113
114
115 /***********************************************************************
116 * LISTBOX_GetCurrentPageSize
117 *
118 * Return the current page size
119 */
120 static INT32 LISTBOX_GetCurrentPageSize( WND *wnd, LB_DESCR *descr )
121 {
122 INT32 i, height;
123 if (!(descr->style & LBS_OWNERDRAWVARIABLE)) return descr->page_size;
124 for (i = descr->top_item, height = 0; i < descr->nb_items; i++)
125 {
126 if ((height += descr->items[i].height) > descr->height) break;
127 }
128 if (i == descr->top_item) return 1;
129 else return i - descr->top_item;
130 }
131
132
133 /***********************************************************************
134 * LISTBOX_GetMaxTopIndex
135 *
136 * Return the maximum possible index for the top of the listbox.
137 */
138 static INT32 LISTBOX_GetMaxTopIndex( WND *wnd, LB_DESCR *descr )
139 {
140 INT32 max, page;
141
142 if (descr->style & LBS_OWNERDRAWVARIABLE)
143 {
144 page = descr->height;
145 for (max = descr->nb_items - 1; max >= 0; max--)
146 if ((page -= descr->items[max].height) < 0) break;
147 if (max < descr->nb_items - 1) max++;
148 }
149 else if (descr->style & LBS_MULTICOLUMN)
150 {
151 if ((page = descr->width / descr->column_width) < 1) page = 1;
152 max = (descr->nb_items + descr->page_size - 1) / descr->page_size;
153 max = (max - page) * descr->page_size;
154 }
155 else
156 {
157 max = descr->nb_items - descr->page_size;
158 }
159 if (max < 0) max = 0;
160 return max;
161 }
162
163
164 /***********************************************************************
165 * LISTBOX_UpdateScroll
166 *
167 * Update the scrollbars. Should be called whenever the content
168 * of the listbox changes.
169 */
170 static void LISTBOX_UpdateScroll( WND *wnd, LB_DESCR *descr )
171 {
172 SCROLLINFO info;
173
174 if (!(descr->style & WS_VSCROLL)) return;
175 /* It is important that we check descr->style, and not wnd->dwStyle,
176 for WS_VSCROLL, as the former is exactly the one passed in
177 argument to CreateWindow.
178 In Windows (and from now on in Wine :) a listbox created
179 with such a style (no WS_SCROLL) does not update
180 the scrollbar with listbox-related data, thus letting
181 the programmer use it for his/her own purposes. */
182
183 if (descr->style & LBS_NOREDRAW) return;
184 info.cbSize = sizeof(info);
185
186 if (descr->style & LBS_MULTICOLUMN)
187 {
188 info.nMin = 0;
189 info.nMax = (descr->nb_items - 1) / descr->page_size;
190 info.nPos = descr->top_item / descr->page_size;
191 info.nPage = descr->width / descr->column_width;
192 if (info.nPage < 1) info.nPage = 1;
193 info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
194 if (descr->style & LBS_DISABLENOSCROLL)
195 info.fMask |= SIF_DISABLENOSCROLL;
196 SetScrollInfo32( wnd->hwndSelf, SB_HORZ, &info, TRUE );
197 info.nMax = 0;
198 info.fMask = SIF_RANGE;
199 SetScrollInfo32( wnd->hwndSelf, SB_VERT, &info, TRUE );
200 }
201 else
202 {
203 info.nMin = 0;
204 info.nMax = descr->nb_items - 1;
205 info.nPos = descr->top_item;
206 info.nPage = LISTBOX_GetCurrentPageSize( wnd, descr );
207 info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
208 if (descr->style & LBS_DISABLENOSCROLL)
209 info.fMask |= SIF_DISABLENOSCROLL;
210 SetScrollInfo32( wnd->hwndSelf, SB_VERT, &info, TRUE );
211
212 if (descr->horz_extent)
213 {
214 info.nMin = 0;
215 info.nMax = descr->horz_extent - 1;
216 info.nPos = descr->horz_pos;
217 info.nPage = descr->width;
218 info.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
219 if (descr->style & LBS_DISABLENOSCROLL)
220 info.fMask |= SIF_DISABLENOSCROLL;
221 SetScrollInfo32( wnd->hwndSelf, SB_HORZ, &info, TRUE );
222 }
223 }
224 }
225
226
227 /***********************************************************************
228 * LISTBOX_SetTopItem
229 *
230 * Set the top item of the listbox, scrolling up or down if necessary.
231 */
232 static LRESULT LISTBOX_SetTopItem( WND *wnd, LB_DESCR *descr, INT32 index,
233 BOOL32 scroll )
234 {
235 INT32 max = LISTBOX_GetMaxTopIndex( wnd, descr );
236 if (index > max) index = max;
237 if (index < 0) index = 0;
238 if (descr->style & LBS_MULTICOLUMN) index -= index % descr->page_size;
239 if (descr->top_item == index) return LB_OKAY;
240 if (descr->style & LBS_MULTICOLUMN)
241 {
242 INT32 diff = (descr->top_item - index) / descr->page_size * descr->column_width;
243 if (scroll && (abs(diff) < descr->width))
244 ScrollWindowEx32( wnd->hwndSelf, diff, 0, NULL, NULL, 0, NULL,
245 SW_INVALIDATE | SW_ERASE );
246 else
247 scroll = FALSE;
248 }
249 else if (scroll)
250 {
251 INT32 diff;
252 if (descr->style & LBS_OWNERDRAWVARIABLE)
253 {
254 INT32 i;
255 diff = 0;
256 if (index > descr->top_item)
257 {
258 for (i = index - 1; i >= descr->top_item; i--)
259 diff -= descr->items[i].height;
260 }
261 else
262 {
263 for (i = index; i < descr->top_item; i++)
264 diff += descr->items[i].height;
265 }
266 }
267 else
268 diff = (descr->top_item - index) * descr->item_height;
269
270 if (abs(diff) < descr->height)
271 ScrollWindowEx32( wnd->hwndSelf, 0, diff, NULL, NULL, 0, NULL,
272 SW_INVALIDATE | SW_ERASE );
273 else
274 scroll = FALSE;
275 }
276 if (!scroll) InvalidateRect32( wnd->hwndSelf, NULL, TRUE );
277 descr->top_item = index;
278 LISTBOX_UpdateScroll( wnd, descr );
279 return LB_OKAY;
280 }
281
282
283 /***********************************************************************
284 * LISTBOX_UpdatePage
285 *
286 * Update the page size. Should be called when the size of
287 * the client area or the item height changes.
288 */
289 static void LISTBOX_UpdatePage( WND *wnd, LB_DESCR *descr )
290 {
291 INT32 page_size;
292
293 if ((page_size = descr->height / descr->item_height) < 1) page_size = 1;
294 if (page_size == descr->page_size) return;
295 descr->page_size = page_size;
296 if (descr->style & LBS_MULTICOLUMN)
297 InvalidateRect32( wnd->hwndSelf, NULL, TRUE );
298 LISTBOX_SetTopItem( wnd, descr, descr->top_item, FALSE );
299 }
300
301
302 /***********************************************************************
303 * LISTBOX_UpdateSize
304 *
305 * Update the size of the listbox. Should be called when the size of
306 * the client area changes.
307 */
308 static void LISTBOX_UpdateSize( WND *wnd, LB_DESCR *descr )
309 {
310 RECT32 rect;
311
312 GetClientRect32( wnd->hwndSelf, &rect );
313 descr->width = rect.right - rect.left;
314 descr->height = rect.bottom - rect.top;
315 if (!(descr->style & LBS_NOINTEGRALHEIGHT) && !IS_OWNERDRAW(descr))
316 {
317 if ((descr->height > descr->item_height) &&
318 (descr->height % descr->item_height))
319 {
320 TRACE(listbox, "[%04x]: changing height %d -> %d\n",
321 wnd->hwndSelf, descr->height,
322 descr->height - descr->height%descr->item_height );
323 SetWindowPos32( wnd->hwndSelf, 0, 0, 0,
324 wnd->rectWindow.right - wnd->rectWindow.left,
325 wnd->rectWindow.bottom - wnd->rectWindow.top -
326 (descr->height % descr->item_height),
327 SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE );
328 return;
329 }
330 }
331 TRACE(listbox, "[%04x]: new size = %d,%d\n",
332 wnd->hwndSelf, descr->width, descr->height );
333 LISTBOX_UpdatePage( wnd, descr );
334 LISTBOX_UpdateScroll( wnd, descr );
335 }
336
337
338 /***********************************************************************
339 * LISTBOX_GetItemRect
340 *
341 * Get the rectangle enclosing an item, in listbox client coordinates.
342 * Return 1 if the rectangle is (partially) visible, 0 if hidden, -1 on error.
343 */
344 static LRESULT LISTBOX_GetItemRect( WND *wnd, LB_DESCR *descr, INT32 index,
345 RECT32 *rect )
346 {
347 /* Index <= 0 is legal even on empty listboxes */
348 if (index && (index >= descr->nb_items)) return -1;
349 SetRect32( rect, 0, 0, descr->width, descr->height );
350 if (descr->style & LBS_MULTICOLUMN)
351 {
352 INT32 col = (index / descr->page_size) -
353 (descr->top_item / descr->page_size);
354 rect->left += col * descr->column_width;
355 rect->right = rect->left + descr->column_width;
356 rect->top += (index % descr->page_size) * descr->item_height;
357 rect->bottom = rect->top + descr->item_height;
358 }
359 else if (descr->style & LBS_OWNERDRAWVARIABLE)
360 {
361 INT32 i;
362 rect->right += descr->horz_pos;
363 if ((index >= 0) && (index < descr->nb_items))
364 {
365 if (index < descr->top_item)
366 {
367 for (i = descr->top_item-1; i >= index; i--)
368 rect->top -= descr->items[i].height;
369 }
370 else
371 {
372 for (i = descr->top_item; i < index; i++)
373 rect->top += descr->items[i].height;
374 }
375 rect->bottom = rect->top + descr->items[index].height;
376
377 }
378 }
379 else
380 {
381 rect->top += (index - descr->top_item) * descr->item_height;
382 rect->bottom = rect->top + descr->item_height;
383 rect->right += descr->horz_pos;
384 }
385
386 return ((rect->left < descr->width) && (rect->right > 0) &&
387 (rect->top < descr->height) && (rect->bottom > 0));
388 }
389
390
391 /***********************************************************************
392 * LISTBOX_GetItemFromPoint
393 *
394 * Return the item nearest from point (x,y) (in client coordinates).
395 */
396 static INT32 LISTBOX_GetItemFromPoint( WND *wnd, LB_DESCR *descr,
397 INT32 x, INT32 y )
398 {
399 INT32 index = descr->top_item;
400
401 if (!descr->nb_items) return -1; /* No items */
402 if (descr->style & LBS_OWNERDRAWVARIABLE)
403 {
404 INT32 pos = 0;
405 if (y >= 0)
406 {
407 while (index < descr->nb_items)
408 {
409 if ((pos += descr->items[index].height) > y) break;
410 index++;
411 }
412 }
413 else
414 {
415 while (index > 0)
416 {
417 index--;
418 if ((pos -= descr->items[index].height) <= y) break;
419 }
420 }
421 }
422 else if (descr->style & LBS_MULTICOLUMN)
423 {
424 if (y >= descr->item_height * descr->page_size) return -1;
425 if (y >= 0) index += y / descr->item_height;
426 if (x >= 0) index += (x / descr->column_width) * descr->page_size;
427 else index -= (((x + 1) / descr->column_width) - 1) * descr->page_size;
428 }
429 else
430 {
431 index += (y / descr->item_height);
432 }
433 if (index < 0) return 0;
434 if (index >= descr->nb_items) return -1;
435 return index;
436 }
437
438
439 /***********************************************************************
440 * LISTBOX_PaintItem
441 *
442 * Paint an item.
443 */
444 static void LISTBOX_PaintItem( WND *wnd, LB_DESCR *descr, HDC32 hdc,
445 const RECT32 *rect, INT32 index, UINT32 action )
446 {
447 LB_ITEMDATA *item = NULL;
448 if (index < descr->nb_items) item = &descr->items[index];
449
450 if (IS_OWNERDRAW(descr))
451 {
452 DRAWITEMSTRUCT32 dis;
453 UINT32 id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
454
455 dis.CtlType = ODT_LISTBOX;
456 dis.CtlID = id;
457 dis.hwndItem = wnd->hwndSelf;
458 dis.itemAction = action;
459 dis.hDC = hdc;
460 dis.itemID = index;
461 dis.itemState = 0;
462 if (item && item->selected) dis.itemState |= ODS_SELECTED;
463 if ((descr->focus_item == index) &&
464 (descr->caret_on) &&
465 (GetFocus32() == wnd->hwndSelf)) dis.itemState |= ODS_FOCUS;
466 if (wnd->dwStyle & WS_DISABLED) dis.itemState |= ODS_DISABLED;
467 dis.itemData = item ? item->data : 0;
468 dis.rcItem = *rect;
469 TRACE(listbox, "[%04x]: drawitem %d (%s) action=%02x "
470 "state=%02x rect=%d,%d-%d,%d\n",
471 wnd->hwndSelf, index, item ? item->str : "", action,
472 dis.itemState, rect->left, rect->top,
473 rect->right, rect->bottom );
474 SendMessage32A(descr->owner, WM_DRAWITEM, id, (LPARAM)&dis);
475 }
476 else
477 {
478 COLORREF oldText = 0, oldBk = 0;
479
480 if (action == ODA_FOCUS)
481 {
482 DrawFocusRect32( hdc, rect );
483 return;
484 }
485 if (item && item->selected)
486 {
487 oldBk = SetBkColor32( hdc, GetSysColor32( COLOR_HIGHLIGHT ) );
488 oldText = SetTextColor32( hdc, GetSysColor32(COLOR_HIGHLIGHTTEXT));
489 }
490
491 TRACE(listbox, "[%04x]: painting %d (%s) action=%02x "
492 "rect=%d,%d-%d,%d\n",
493 wnd->hwndSelf, index, item ? item->str : "", action,
494 rect->left, rect->top, rect->right, rect->bottom );
495 if (!item)
496 ExtTextOut32A( hdc, rect->left + 1, rect->top + 1,
497 ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
498 else if (!(descr->style & LBS_USETABSTOPS))
499 ExtTextOut32A( hdc, rect->left + 1, rect->top + 1,
500 ETO_OPAQUE | ETO_CLIPPED, rect, item->str,
501 strlen(item->str), NULL );
502 else
503 {
504 /* Output empty string to paint background in the full width. */
505 ExtTextOut32A( hdc, rect->left + 1, rect->top + 1,
506 ETO_OPAQUE | ETO_CLIPPED, rect, NULL, 0, NULL );
507 TabbedTextOut32A( hdc, rect->left + 1 , rect->top + 1,
508 item->str, strlen(item->str),
509 descr->nb_tabs, descr->tabs, 0);
510 }
511 if (item && item->selected)
512 {
513 SetBkColor32( hdc, oldBk );
514 SetTextColor32( hdc, oldText );
515 }
516 if ((descr->focus_item == index) &&
517 (descr->caret_on) &&
518 (GetFocus32() == wnd->hwndSelf)) DrawFocusRect32( hdc, rect );
519 }
520 }
521
522
523 /***********************************************************************
524 * LISTBOX_SetRedraw
525 *
526 * Change the redraw flag.
527 */
528 static void LISTBOX_SetRedraw( WND *wnd, LB_DESCR *descr, BOOL32 on )
529 {
530 if (on)
531 {
532 if (!(descr->style & LBS_NOREDRAW)) return;
533 descr->style &= ~LBS_NOREDRAW;
534 LISTBOX_UpdateScroll( wnd, descr );
535 }
536 else descr->style |= LBS_NOREDRAW;
537 }
538
539
540 /***********************************************************************
541 * LISTBOX_RepaintItem
542 *
543 * Repaint a single item synchronously.
544 */
545 static void LISTBOX_RepaintItem( WND *wnd, LB_DESCR *descr, INT32 index,
546 UINT32 action )
547 {
548 HDC32 hdc;
549 RECT32 rect;
550 HFONT32 oldFont = 0;
551 HBRUSH32 hbrush, oldBrush = 0;
552
553 if (descr->style & LBS_NOREDRAW) return;
554 if (LISTBOX_GetItemRect( wnd, descr, index, &rect ) != 1) return;
555 if (!(hdc = GetDCEx32( wnd->hwndSelf, 0, DCX_CACHE ))) return;
556 if (descr->font) oldFont = SelectObject32( hdc, descr->font );
557 hbrush = SendMessage32A( descr->owner, WM_CTLCOLORLISTBOX,
558 hdc, (LPARAM)wnd->hwndSelf );
559 if (hbrush) oldBrush = SelectObject32( hdc, hbrush );
560 if (wnd->dwStyle & WS_DISABLED)
561 SetTextColor32( hdc, GetSysColor32( COLOR_GRAYTEXT ) );
562 SetWindowOrgEx32( hdc, descr->horz_pos, 0, NULL );
563 LISTBOX_PaintItem( wnd, descr, hdc, &rect, index, action );
564 if (oldFont) SelectObject32( hdc, oldFont );
565 if (oldBrush) SelectObject32( hdc, oldBrush );
566 ReleaseDC32( wnd->hwndSelf, hdc );
567 }
568
569
570 /***********************************************************************
571 * LISTBOX_InitStorage
572 */
573 static LRESULT LISTBOX_InitStorage( WND *wnd, LB_DESCR *descr, INT32 nb_items,
574 DWORD bytes )
575 {
576 LB_ITEMDATA *item;
577
578 nb_items += LB_ARRAY_GRANULARITY - 1;
579 nb_items -= (nb_items % LB_ARRAY_GRANULARITY);
580 if (descr->items)
581 nb_items += HeapSize( descr->heap, 0, descr->items ) / sizeof(*item);
582 if (!(item = HeapReAlloc( descr->heap, 0, descr->items,
583 nb_items * sizeof(LB_ITEMDATA) )))
584 {
585 SEND_NOTIFICATION( wnd, descr, LBN_ERRSPACE );
586 return LB_ERRSPACE;
587 }
588 descr->items = item;
589 return LB_OKAY;
590 }
591
592
593 /***********************************************************************
594 * LISTBOX_SetTabStops
595 */
596 static BOOL32 LISTBOX_SetTabStops( WND *wnd, LB_DESCR *descr, INT32 count,
597 LPINT32 tabs, BOOL32 short_ints )
598 {
599 if (!(descr->style & LBS_USETABSTOPS)) return TRUE;
600 if (descr->tabs) HeapFree( descr->heap, 0, descr->tabs );
601 if (!(descr->nb_tabs = count))
602 {
603 descr->tabs = NULL;
604 return TRUE;
605 }
606 /* FIXME: count = 1 */
607 if (!(descr->tabs = (INT32 *)HeapAlloc( descr->heap, 0,
608 descr->nb_tabs * sizeof(INT32) )))
609 return FALSE;
610 if (short_ints)
611 {
612 INT32 i;
613 LPINT16 p = (LPINT16)tabs;
614 dbg_decl_str(listbox, 256);
615
616 for (i = 0; i < descr->nb_tabs; i++) {
617 descr->tabs[i] = *p++<<1; /* FIXME */
618 if(TRACE_ON(listbox))
619 dsprintf(listbox, "%hd ", descr->tabs[i]);
620 }
621 TRACE(listbox, "[%04x]: settabstops %s\n",
622 wnd->hwndSelf, dbg_str(listbox));
623 }
624 else memcpy( descr->tabs, tabs, descr->nb_tabs * sizeof(INT32) );
625 /* FIXME: repaint the window? */
626 return TRUE;
627 }
628
629
630 /***********************************************************************
631 * LISTBOX_GetText
632 */
633 static LRESULT LISTBOX_GetText( WND *wnd, LB_DESCR *descr, INT32 index,
634 LPSTR buffer )
635 {
636 if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
637 if (HAS_STRINGS(descr))
638 {
639 lstrcpy32A( buffer, descr->items[index].str );
640 return strlen(buffer);
641 }
642 else
643 {
644 memcpy( buffer, &descr->items[index].data, sizeof(DWORD) );
645 return sizeof(DWORD);
646 }
647 }
648
649
650 /***********************************************************************
651 * LISTBOX_FindStringPos
652 *
653 * Find the nearest string located before a given string in sort order.
654 * If 'exact' is TRUE, return an error if we don't get an exact match.
655 */
656 static INT32 LISTBOX_FindStringPos( WND *wnd, LB_DESCR *descr, LPCSTR str,
657 BOOL32 exact )
658 {
659 INT32 index, min, max, res = -1;
660
661 if (!(descr->style & LBS_SORT)) return -1; /* Add it at the end */
662 min = 0;
663 max = descr->nb_items;
664 while (min != max)
665 {
666 index = (min + max) / 2;
667 if (HAS_STRINGS(descr))
668 res = lstrcmpi32A( descr->items[index].str, str );
669 else
670 {
671 COMPAREITEMSTRUCT32 cis;
672 UINT32 id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
673
674 cis.CtlType = ODT_LISTBOX;
675 cis.CtlID = id;
676 cis.hwndItem = wnd->hwndSelf;
677 cis.itemID1 = index;
678 cis.itemData1 = descr->items[index].data;
679 cis.itemID2 = -1;
680 cis.itemData2 = (DWORD)str;
681 cis.dwLocaleId = descr->locale;
682 res = SendMessage32A( descr->owner, WM_COMPAREITEM,
683 id, (LPARAM)&cis );
684 }
685 if (!res) return index;
686 if (res > 0) max = index;
687 else min = index + 1;
688 }
689 return exact ? -1 : max;
690 }
691
692
693 /***********************************************************************
694 * LISTBOX_FindFileStrPos
695 *
696 * Find the nearest string located before a given string in directory
697 * sort order (i.e. first files, then directories, then drives).
698 */
699 static INT32 LISTBOX_FindFileStrPos( WND *wnd, LB_DESCR *descr, LPCSTR str )
700 {
701 INT32 min, max, res = -1;
702
703 if (!HAS_STRINGS(descr))
704 return LISTBOX_FindStringPos( wnd, descr, str, FALSE );
705 min = 0;
706 max = descr->nb_items;
707 while (min != max)
708 {
709 INT32 index = (min + max) / 2;
710 const char *p = descr->items[index].str;
711 if (*p == '[') /* drive or directory */
712 {
713 if (*str != '[') res = -1;
714 else if (p[1] == '-') /* drive */
715 {
716 if (str[1] == '-') res = str[2] - p[2];
717 else res = -1;
718 }
719 else /* directory */
720 {
721 if (str[1] == '-') res = 1;
722 else res = lstrcmpi32A( str, p );
723 }
724 }
725 else /* filename */
726 {
727 if (*str == '[') res = 1;
728 else res = lstrcmpi32A( str, p );
729 }
730 if (!res) return index;
731 if (res < 0) max = index;
732 else min = index + 1;
733 }
734 return max;
735 }
736
737
738 /***********************************************************************
739 * LISTBOX_FindString
740 *
741 * Find the item beginning with a given string.
742 */
743 static INT32 LISTBOX_FindString( WND *wnd, LB_DESCR *descr, INT32 start,
744 LPCSTR str, BOOL32 exact )
745 {
746 INT32 i;
747 LB_ITEMDATA *item;
748
749 if (start >= descr->nb_items) start = -1;
750 item = descr->items + start + 1;
751 if (HAS_STRINGS(descr))
752 {
753 if (!str) return LB_ERR;
754 if (exact)
755 {
756 for (i = start + 1; i < descr->nb_items; i++, item++)
757 if (!lstrcmpi32A( str, item->str )) return i;
758 for (i = 0, item = descr->items; i <= start; i++, item++)
759 if (!lstrcmpi32A( str, item->str )) return i;
760 }
761 else
762 {
763 /* Special case for drives and directories: ignore prefix */
764 #define CHECK_DRIVE(item) \
765 if ((item)->str[0] == '[') \
766 { \
767 if (!lstrncmpi32A( str, (item)->str+1, len )) return i; \
768 if (((item)->str[1] == '-') && !lstrncmpi32A(str,(item)->str+2,len)) \
769 return i; \
770 }
771
772 INT32 len = strlen(str);
773 for (i = start + 1; i < descr->nb_items; i++, item++)
774 {
775 if (!lstrncmpi32A( str, item->str, len )) return i;
776 CHECK_DRIVE(item);
777 }
778 for (i = 0, item = descr->items; i <= start; i++, item++)
779 {
780 if (!lstrncmpi32A( str, item->str, len )) return i;
781 CHECK_DRIVE(item);
782 }
783 #undef CHECK_DRIVE
784 }
785 }
786 else
787 {
788 if (exact && (descr->style & LBS_SORT))
789 /* If sorted, use a WM_COMPAREITEM binary search */
790 return LISTBOX_FindStringPos( wnd, descr, str, TRUE );
791
792 /* Otherwise use a linear search */
793 for (i = start + 1; i < descr->nb_items; i++, item++)
794 if (item->data == (DWORD)str) return i;
795 for (i = 0, item = descr->items; i <= start; i++, item++)
796 if (item->data == (DWORD)str) return i;
797 }
798 return LB_ERR;
799 }
800
801
802 /***********************************************************************
803 * LISTBOX_GetSelCount
804 */
805 static LRESULT LISTBOX_GetSelCount( WND *wnd, LB_DESCR *descr )
806 {
807 INT32 i, count;
808 LB_ITEMDATA *item = descr->items;
809
810 if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
811 for (i = count = 0; i < descr->nb_items; i++, item++)
812 if (item->selected) count++;
813 return count;
814 }
815
816
817 /***********************************************************************
818 * LISTBOX_GetSelItems16
819 */
820 static LRESULT LISTBOX_GetSelItems16( WND *wnd, LB_DESCR *descr, INT16 max,
821 LPINT16 array )
822 {
823 INT32 i, count;
824 LB_ITEMDATA *item = descr->items;
825
826 if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
827 for (i = count = 0; (i < descr->nb_items) && (count < max); i++, item++)
828 if (item->selected) array[count++] = (INT16)i;
829 return count;
830 }
831
832
833 /***********************************************************************
834 * LISTBOX_GetSelItems32
835 */
836 static LRESULT LISTBOX_GetSelItems32( WND *wnd, LB_DESCR *descr, INT32 max,
837 LPINT32 array )
838 {
839 INT32 i, count;
840 LB_ITEMDATA *item = descr->items;
841
842 if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
843 for (i = count = 0; (i < descr->nb_items) && (count < max); i++, item++)
844 if (item->selected) array[count++] = i;
845 return count;
846 }
847
848
849 /***********************************************************************
850 * LISTBOX_Paint
851 */
852 static LRESULT LISTBOX_Paint( WND *wnd, LB_DESCR *descr, HDC32 hdc )
853 {
854 INT32 i, col_pos = descr->page_size - 1;
855 RECT32 rect;
856 HFONT32 oldFont = 0;
857 HBRUSH32 hbrush, oldBrush = 0;
858
859 SetRect32( &rect, 0, 0, descr->width, descr->height );
860 if (descr->style & LBS_NOREDRAW) return 0;
861 if (descr->style & LBS_MULTICOLUMN)
862 rect.right = rect.left + descr->column_width;
863 else if (descr->horz_pos)
864 {
865 SetWindowOrgEx32( hdc, descr->horz_pos, 0, NULL );
866 rect.right += descr->horz_pos;
867 }
868
869 if (descr->font) oldFont = SelectObject32( hdc, descr->font );
870 hbrush = SendMessage32A( descr->owner, WM_CTLCOLORLISTBOX,
871 hdc, (LPARAM)wnd->hwndSelf );
872 if (hbrush) oldBrush = SelectObject32( hdc, hbrush );
873 if (wnd->dwStyle & WS_DISABLED)
874 SetTextColor32( hdc, GetSysColor32( COLOR_GRAYTEXT ) );
875
876 if (!descr->nb_items && (descr->focus_item != -1) && descr->caret_on &&
877 (GetFocus32() == wnd->hwndSelf))
878 {
879 /* Special case for empty listbox: paint focus rect */
880 rect.bottom = rect.top + descr->item_height;
881 LISTBOX_PaintItem( wnd, descr, hdc, &rect, descr->focus_item,
882 ODA_DRAWENTIRE );
883 rect.top = rect.bottom;
884 }
885
886 for (i = descr->top_item; i < descr->nb_items; i++)
887 {
888 if (!(descr->style & LBS_OWNERDRAWVARIABLE))
889 rect.bottom = rect.top + descr->item_height;
890 else
891 rect.bottom = rect.top + descr->items[i].height;
892
893 LISTBOX_PaintItem( wnd, descr, hdc, &rect, i, ODA_DRAWENTIRE );
894 rect.top = rect.bottom;
895
896 if ((descr->style & LBS_MULTICOLUMN) && !col_pos)
897 {
898 if (!IS_OWNERDRAW(descr))
899 {
900 /* Clear the bottom of the column */
901 SetBkColor32( hdc, GetSysColor32( COLOR_WINDOW ) );
902 if (rect.top < descr->height)
903 {
904 rect.bottom = descr->height;
905 ExtTextOut32A( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
906 &rect, NULL, 0, NULL );
907 }
908 }
909
910 /* Go to the next column */
911 rect.left += descr->column_width;
912 rect.right += descr->column_width;
913 rect.top = 0;
914 col_pos = descr->page_size - 1;
915 }
916 else
917 {
918 col_pos--;
919 if (rect.top >= descr->height) break;
920 }
921 }
922
923 if (!IS_OWNERDRAW(descr))
924 {
925 /* Clear the remainder of the client area */
926 SetBkColor32( hdc, GetSysColor32( COLOR_WINDOW ) );
927 if (rect.top < descr->height)
928 {
929 rect.bottom = descr->height;
930 ExtTextOut32A( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
931 &rect, NULL, 0, NULL );
932 }
933 if (rect.right < descr->width)
934 {
935 rect.left = rect.right;
936 rect.right = descr->width;
937 rect.top = 0;
938 rect.bottom = descr->height;
939 ExtTextOut32A( hdc, 0, 0, ETO_OPAQUE | ETO_CLIPPED,
940 &rect, NULL, 0, NULL );
941 }
942 }
943 if (oldFont) SelectObject32( hdc, oldFont );
944 if (oldBrush) SelectObject32( hdc, oldBrush );
945 return 0;
946 }
947
948
949 /***********************************************************************
950 * LISTBOX_InvalidateItems
951 *
952 * Invalidate all items from a given item. If the specified item is not
953 * visible, nothing happens.
954 */
955 static void LISTBOX_InvalidateItems( WND *wnd, LB_DESCR *descr, INT32 index )
956 {
957 RECT32 rect;
958
959 if (LISTBOX_GetItemRect( wnd, descr, index, &rect ) == 1)
960 {
961 rect.bottom = descr->height;
962 InvalidateRect32( wnd->hwndSelf, &rect, TRUE );
963 if (descr->style & LBS_MULTICOLUMN)
964 {
965 /* Repaint the other columns */
966 rect.left = rect.right;
967 rect.right = descr->width;
968 rect.top = 0;
969 InvalidateRect32( wnd->hwndSelf, &rect, TRUE );
970 }
971 }
972 }
973
974
975 /***********************************************************************
976 * LISTBOX_GetItemHeight
977 */
978 static LRESULT LISTBOX_GetItemHeight( WND *wnd, LB_DESCR *descr, INT32 index )
979 {
980 if (descr->style & LBS_OWNERDRAWVARIABLE)
981 {
982 if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
983 return descr->items[index].height;
984 }
985 else return descr->item_height;
986 }
987
988
989 /***********************************************************************
990 * LISTBOX_SetItemHeight
991 */
992 static LRESULT LISTBOX_SetItemHeight( WND *wnd, LB_DESCR *descr, INT32 index,
993 UINT32 height )
994 {
995 if (!height) height = 1;
996
997 if (descr->style & LBS_OWNERDRAWVARIABLE)
998 {
999 if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
1000 TRACE(listbox, "[%04x]: item %d height = %d\n",
1001 wnd->hwndSelf, index, height );
1002 descr->items[index].height = height;
1003 LISTBOX_UpdateScroll( wnd, descr );
1004 LISTBOX_InvalidateItems( wnd, descr, index );
1005 }
1006 else if (height != descr->item_height)
1007 {
1008 TRACE(listbox, "[%04x]: new height = %d\n",
1009 wnd->hwndSelf, height );
1010 descr->item_height = height;
1011 LISTBOX_UpdatePage( wnd, descr );
1012 LISTBOX_UpdateScroll( wnd, descr );
1013 InvalidateRect32( wnd->hwndSelf, 0, TRUE );
1014 }
1015 return LB_OKAY;
1016 }
1017
1018
1019 /***********************************************************************
1020 * LISTBOX_SetHorizontalPos
1021 */
1022 static void LISTBOX_SetHorizontalPos( WND *wnd, LB_DESCR *descr, INT32 pos )
1023 {
1024 INT32 diff;
1025
1026 if (pos > descr->horz_extent - descr->width)
1027 pos = descr->horz_extent - descr->width;
1028 if (pos < 0) pos = 0;
1029 if (!(diff = descr->horz_pos - pos)) return;
1030 TRACE(listbox, "[%04x]: new horz pos = %d\n",
1031 wnd->hwndSelf, pos );
1032 descr->horz_pos = pos;
1033 LISTBOX_UpdateScroll( wnd, descr );
1034 if (abs(diff) < descr->width)
1035 ScrollWindowEx32( wnd->hwndSelf, diff, 0, NULL, NULL, 0, NULL,
1036 SW_INVALIDATE | SW_ERASE );
1037 else
1038 InvalidateRect32( wnd->hwndSelf, NULL, TRUE );
1039 }
1040
1041
1042 /***********************************************************************
1043 * LISTBOX_SetHorizontalExtent
1044 */
1045 static LRESULT LISTBOX_SetHorizontalExtent( WND *wnd, LB_DESCR *descr,
1046 UINT32 extent )
1047 {
1048 if (!descr->horz_extent || (descr->style & LBS_MULTICOLUMN))
1049 return LB_OKAY;
1050 if (extent <= 0) extent = 1;
1051 if (extent == descr->horz_extent) return LB_OKAY;
1052 TRACE(listbox, "[%04x]: new horz extent = %d\n",
1053 wnd->hwndSelf, extent );
1054 descr->horz_extent = extent;
1055 if (descr->horz_pos > extent - descr->width)
1056 LISTBOX_SetHorizontalPos( wnd, descr, extent - descr->width );
1057 else
1058 LISTBOX_UpdateScroll( wnd, descr );
1059 return LB_OKAY;
1060 }
1061
1062
1063 /***********************************************************************
1064 * LISTBOX_SetColumnWidth
1065 */
1066 static LRESULT LISTBOX_SetColumnWidth( WND *wnd, LB_DESCR *descr, UINT32 width)
1067 {
1068 width += 2; /* For left and right margin */
1069 if (width == descr->column_width) return LB_OKAY;
1070 TRACE(listbox, "[%04x]: new column width = %d\n",
1071 wnd->hwndSelf, width );
1072 descr->column_width = width;
1073 LISTBOX_UpdatePage( wnd, descr );
1074 return LB_OKAY;
1075 }
1076
1077
1078 /***********************************************************************
1079 * LISTBOX_SetFont
1080 *
1081 * Returns the item height.
1082 */
1083 static INT32 LISTBOX_SetFont( WND *wnd, LB_DESCR *descr, HFONT32 font )
1084 {
1085 HDC32 hdc;
1086 HFONT32 oldFont = 0;
1087 TEXTMETRIC32A tm;
1088
1089 descr->font = font;
1090
1091 if (!(hdc = GetDCEx32( wnd->hwndSelf, 0, DCX_CACHE )))
1092 {
1093 ERR(listbox, "unable to get DC.\n" );
1094 return 16;
1095 }
1096 if (font) oldFont = SelectObject32( hdc, font );
1097 GetTextMetrics32A( hdc, &tm );
1098 if (oldFont) SelectObject32( hdc, oldFont );
1099 ReleaseDC32( wnd->hwndSelf, hdc );
1100 if (!IS_OWNERDRAW(descr))
1101 LISTBOX_SetItemHeight( wnd, descr, 0, tm.tmHeight );
1102 return tm.tmHeight ;
1103 }
1104
1105
1106 /***********************************************************************
1107 * LISTBOX_MakeItemVisible
1108 *
1109 * Make sure that a given item is partially or fully visible.
1110 */
1111 static void LISTBOX_MakeItemVisible( WND *wnd, LB_DESCR *descr, INT32 index,
1112 BOOL32 fully )
1113 {
1114 INT32 top;
1115
1116 if (index <= descr->top_item) top = index;
1117 else if (descr->style & LBS_MULTICOLUMN)
1118 {
1119 INT32 cols = descr->width;
1120 if (!fully) cols += descr->column_width - 1;
1121 if (cols >= descr->column_width) cols /= descr->column_width;
1122 else cols = 1;
1123 if (index < descr->top_item + (descr->page_size * cols)) return;
1124 top = index - descr->page_size * (cols - 1);
1125 }
1126 else if (descr->style & LBS_OWNERDRAWVARIABLE)
1127 {
1128 INT32 height = fully ? descr->items[index].height : 1;
1129 for (top = index; top > descr->top_item; top--)
1130 if ((height += descr->items[top-1].height) > descr->height) break;
1131 }
1132 else
1133 {
1134 if (index < descr->top_item + descr->page_size) return;
1135 if (!fully && (index == descr->top_item + descr->page_size) &&
1136 (descr->height > (descr->page_size * descr->item_height))) return;
1137 top = index - descr->page_size + 1;
1138 }
1139 LISTBOX_SetTopItem( wnd, descr, top, TRUE );
1140 }
1141
1142
1143 /***********************************************************************
1144 * LISTBOX_SelectItemRange
1145 *
1146 * Select a range of items. Should only be used on a MULTIPLESEL listbox.
1147 */
1148 static LRESULT LISTBOX_SelectItemRange( WND *wnd, LB_DESCR *descr, INT32 first,
1149 INT32 last, BOOL32 on )
1150 {
1151 INT32 i;
1152
1153 /* A few sanity checks */
1154
1155 if ((last == -1) && (descr->nb_items == 0)) return LB_OKAY;
1156 if (!(descr->style & LBS_MULTIPLESEL)) return LB_ERR;
1157 if (last == -1) last = descr->nb_items - 1;
1158 if ((first < 0) || (first >= descr->nb_items)) return LB_ERR;
1159 if ((last < 0) || (last >= descr->nb_items)) return LB_ERR;
1160 /* selected_item reflects last selected/unselected item on multiple sel */
1161 descr->selected_item = last;
1162
1163 if (on) /* Turn selection on */
1164 {
1165 for (i = first; i <= last; i++)
1166 {
1167 if (descr->items[i].selected) continue;
1168 descr->items[i].selected = TRUE;
1169 LISTBOX_RepaintItem( wnd, descr, i, ODA_SELECT );
1170 }
1171 }
1172 else /* Turn selection off */
1173 {
1174 for (i = first; i <= last; i++)
1175 {
1176 if (!descr->items[i].selected) continue;
1177 descr->items[i].selected = FALSE;
1178 LISTBOX_RepaintItem( wnd, descr, i, ODA_SELECT );
1179 }
1180 }
1181 return LB_OKAY;
1182 }
1183
1184
1185 /***********************************************************************
1186 * LISTBOX_SetCaretIndex
1187 */
1188 static LRESULT LISTBOX_SetCaretIndex( WND *wnd, LB_DESCR *descr, INT32 index,
1189 BOOL32 fully_visible )
1190 {
1191 INT32 oldfocus = descr->focus_item;
1192
1193 if ((index < -1) || (index >= descr->nb_items)) return LB_ERR;
1194 if (index == oldfocus) return LB_OKAY;
1195 descr->focus_item = index;
1196 if ((oldfocus != -1) && descr->caret_on && (GetFocus32() == wnd->hwndSelf))
1197 LISTBOX_RepaintItem( wnd, descr, oldfocus, ODA_FOCUS );
1198 if (index != -1)
1199 {
1200 LISTBOX_MakeItemVisible( wnd, descr, index, fully_visible );
1201 if (descr->caret_on && (GetFocus32() == wnd->hwndSelf))
1202 LISTBOX_RepaintItem( wnd, descr, index, ODA_FOCUS );
1203 }
1204 return LB_OKAY;
1205 }
1206
1207
1208 /***********************************************************************
1209 * LISTBOX_SetSelection
1210 */
1211 static LRESULT LISTBOX_SetSelection( WND *wnd, LB_DESCR *descr, INT32 index,
1212 BOOL32 on, BOOL32 send_notify )
1213 {
1214 if ((index < -1) || (index >= descr->nb_items)) return LB_ERR;
1215 if (descr->style & LBS_MULTIPLESEL)
1216 {
1217 if (index == -1) /* Select all items */
1218 return LISTBOX_SelectItemRange( wnd, descr, 0, -1, on );
1219 else /* Only one item */
1220 return LISTBOX_SelectItemRange( wnd, descr, index, index, on );
1221 }
1222 else
1223 {
1224 INT32 oldsel = descr->selected_item;
1225 if (index == oldsel) return LB_OKAY;
1226 if (oldsel != -1) descr->items[oldsel].selected = FALSE;
1227 if (index != -1) descr->items[index].selected = TRUE;
1228 descr->selected_item = index;
1229 if (oldsel != -1) LISTBOX_RepaintItem( wnd, descr, oldsel, ODA_SELECT);
1230 if (index != -1) LISTBOX_RepaintItem( wnd, descr, index, ODA_SELECT );
1231 if (send_notify) SEND_NOTIFICATION( wnd, descr,
1232 (index != -1) ? LBN_SELCHANGE : LBN_SELCANCEL );
1233 }
1234 return LB_OKAY;
1235 }
1236
1237
1238 /***********************************************************************
1239 * LISTBOX_MoveCaret
1240 *
1241 * Change the caret position and extend the selection to the new caret.
1242 */
1243 static void LISTBOX_MoveCaret( WND *wnd, LB_DESCR *descr, INT32 index,
1244 BOOL32 fully_visible )
1245 {
1246 LISTBOX_SetCaretIndex( wnd, descr, index, fully_visible );
1247 if (descr->style & LBS_EXTENDEDSEL)
1248 {
1249 if (descr->anchor_item != -1)
1250 {
1251 INT32 first = MIN( descr->focus_item, descr->anchor_item );
1252 INT32 last = MAX( descr->focus_item, descr->anchor_item );
1253 if (first > 0)
1254 LISTBOX_SelectItemRange( wnd, descr, 0, first - 1, FALSE );
1255 LISTBOX_SelectItemRange( wnd, descr, last + 1, -1, FALSE );
1256 LISTBOX_SelectItemRange( wnd, descr, first, last, TRUE );
1257 }
1258 }
1259 else if (!(descr->style & LBS_MULTIPLESEL) && (descr->selected_item != -1))
1260 {
1261 /* Set selection to new caret item */
1262 LISTBOX_SetSelection( wnd, descr, index, TRUE, FALSE );
1263 }
1264 }
1265
1266
1267 /***********************************************************************
1268 * LISTBOX_InsertItem
1269 */
1270 static LRESULT LISTBOX_InsertItem( WND *wnd, LB_DESCR *descr, INT32 index,
1271 LPSTR str, DWORD data )
1272 {
1273 LB_ITEMDATA *item;
1274 INT32 max_items;
1275
1276 if (index == -1) index = descr->nb_items;
1277 else if ((index < 0) || (index > descr->nb_items)) return LB_ERR;
1278 if (!descr->items) max_items = 0;
1279 else max_items = HeapSize( descr->heap, 0, descr->items ) / sizeof(*item);
1280 if (descr->nb_items == max_items)
1281 {
1282 /* We need to grow the array */
1283 max_items += LB_ARRAY_GRANULARITY;
1284 if (!(item = HeapReAlloc( descr->heap, 0, descr->items,
1285 max_items * sizeof(LB_ITEMDATA) )))
1286 {
1287 SEND_NOTIFICATION( wnd, descr, LBN_ERRSPACE );
1288 return LB_ERRSPACE;
1289 }
1290 descr->items = item;
1291 }
1292
1293 /* Insert the item structure */
1294
1295 item = &descr->items[index];
1296 if (index < descr->nb_items)
1297 RtlMoveMemory( item + 1, item,
1298 (descr->nb_items - index) * sizeof(LB_ITEMDATA) );
1299 item->str = str;
1300 item->data = data;
1301 item->height = 0;
1302 item->selected = FALSE;
1303 descr->nb_items++;
1304
1305 /* Get item height */
1306
1307 if (descr->style & LBS_OWNERDRAWVARIABLE)
1308 {
1309 MEASUREITEMSTRUCT32 mis;
1310 UINT32 id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
1311
1312 mis.CtlType = ODT_LISTBOX;
1313 mis.CtlID = id;
1314 mis.itemID = index;
1315 mis.itemData = descr->items[index].data;
1316 mis.itemHeight = descr->item_height;
1317 SendMessage32A( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
1318 item->height = mis.itemHeight ? mis.itemHeight : 1;
1319 TRACE(listbox, "[%04x]: measure item %d (%s) = %d\n",
1320 wnd->hwndSelf, index, str ? str : "", item->height );
1321 }
1322
1323 /* Repaint the items */
1324
1325 LISTBOX_UpdateScroll( wnd, descr );
1326 LISTBOX_InvalidateItems( wnd, descr, index );
1327
1328 /* Move selection and focused item */
1329
1330 if (index <= descr->selected_item) descr->selected_item++;
1331 if (index <= descr->focus_item)
1332 {
1333 descr->focus_item++;
1334 LISTBOX_MoveCaret( wnd, descr, descr->focus_item, FALSE );
1335 }
1336
1337 /* If listbox was empty, set focus to the first item */
1338
1339 if (descr->nb_items == 1) LISTBOX_SetCaretIndex( wnd, descr, 0, FALSE );
1340 return LB_OKAY;
1341 }
1342
1343
1344 /***********************************************************************
1345 * LISTBOX_InsertString
1346 */
1347 static LRESULT LISTBOX_InsertString( WND *wnd, LB_DESCR *descr, INT32 index,
1348 LPCSTR str )
1349 {
1350 LPSTR new_str = NULL;
1351 DWORD data = 0;
1352 LRESULT ret;
1353
1354 if (HAS_STRINGS(descr))
1355 {
1356 if (!(new_str = HEAP_strdupA( descr->heap, 0, str )))
1357 {
1358 SEND_NOTIFICATION( wnd, descr, LBN_ERRSPACE );
1359 return LB_ERRSPACE;
1360 }
1361 }
1362 else data = (DWORD)str;
1363
1364 if (index == -1) index = descr->nb_items;
1365 if ((ret = LISTBOX_InsertItem( wnd, descr, index, new_str, data )) != 0)
1366 {
1367 if (new_str) HeapFree( descr->heap, 0, new_str );
1368 return ret;
1369 }
1370
1371 TRACE(listbox, "[%04x]: added item %d '%s'\n",
1372 wnd->hwndSelf, index, HAS_STRINGS(descr) ? new_str : "" );
1373 return index;
1374 }
1375
1376
1377 /***********************************************************************
1378 * LISTBOX_DeleteItem
1379 *
1380 * Delete the content of an item. 'index' must be a valid index.
1381 */
1382 static void LISTBOX_DeleteItem( WND *wnd, LB_DESCR *descr, INT32 index )
1383 {
1384 /* Note: Win 3.1 only sends DELETEITEM on owner-draw items,
1385 * while Win95 sends it for all items with user data.
1386 * It's probably better to send it too often than not
1387 * often enough, so this is what we do here.
1388 */
1389 if (IS_OWNERDRAW(descr) || descr->items[index].data)
1390 {
1391 DELETEITEMSTRUCT32 dis;
1392 UINT32 id = (descr->lphc) ? ID_CB_LISTBOX : wnd->wIDmenu;
1393
1394 dis.CtlType = ODT_LISTBOX;
1395 dis.CtlID = id;
1396 dis.itemID = index;
1397 dis.hwndItem = wnd->hwndSelf;
1398 dis.itemData = descr->items[index].data;
1399 SendMessage32A( descr->owner, WM_DELETEITEM, id, (LPARAM)&dis );
1400 }
1401 if (HAS_STRINGS(descr) && descr->items[index].str)
1402 HeapFree( descr->heap, 0, descr->items[index].str );
1403 }
1404
1405
1406 /***********************************************************************
1407 * LISTBOX_RemoveItem
1408 *
1409 * Remove an item from the listbox and delete its content.
1410 */
1411 static LRESULT LISTBOX_RemoveItem( WND *wnd, LB_DESCR *descr, INT32 index )
1412 {
1413 LB_ITEMDATA *item;
1414 INT32 max_items;
1415
1416 if (index == -1) index = descr->nb_items - 1;
1417 else if ((index < 0) || (index >= descr->nb_items)) return LB_ERR;
1418 LISTBOX_DeleteItem( wnd, descr, index );
1419
1420 /* Remove the item */
1421
1422 item = &descr->items[index];
1423 if (index < descr->nb_items-1)
1424 RtlMoveMemory( item, item + 1,
1425 (descr->nb_items - index - 1) * sizeof(LB_ITEMDATA) );
1426 descr->nb_items--;
1427 if (descr->anchor_item == descr->nb_items) descr->anchor_item--;
1428
1429 /* Shrink the item array if possible */
1430
1431 max_items = HeapSize( descr->heap, 0, descr->items ) / sizeof(LB_ITEMDATA);
1432 if (descr->nb_items < max_items - 2*LB_ARRAY_GRANULARITY)
1433 {
1434 max_items -= LB_ARRAY_GRANULARITY;
1435 item = HeapReAlloc( descr->heap, 0, descr->items,
1436 max_items * sizeof(LB_ITEMDATA) );
1437 if (item) descr->items = item;
1438 }
1439
1440 /* Repaint the items */
1441
1442 LISTBOX_UpdateScroll( wnd, descr );
1443 LISTBOX_InvalidateItems( wnd, descr, index );
1444
1445 /* Move selection and focused item */
1446
1447 if (index <= descr->selected_item) descr->selected_item--;
1448 if (index <= descr->focus_item)
1449 {
1450 descr->focus_item--;
1451 LISTBOX_MoveCaret( wnd, descr, descr->focus_item, FALSE );
1452 }
1453 return LB_OKAY;
1454 }
1455
1456
1457 /***********************************************************************
1458 * LISTBOX_ResetContent
1459 */
1460 static void LISTBOX_ResetContent( WND *wnd, LB_DESCR *descr )
1461 {
1462 INT32 i;
1463
1464 for (i = 0; i < descr->nb_items; i++) LISTBOX_DeleteItem( wnd, descr, i );
1465 if (descr->items) HeapFree( descr->heap, 0, descr->items );
1466 descr->nb_items = 0;
1467 descr->top_item = 0;
1468 descr->selected_item = -1;
1469 descr->focus_item = 0;
1470 descr->anchor_item = -1;
1471 descr->items = NULL;
1472 LISTBOX_UpdateScroll( wnd, descr );
1473 InvalidateRect32( wnd->hwndSelf, NULL, TRUE );
1474 }
1475
1476
1477 /***********************************************************************
1478 * LISTBOX_SetCount
1479 */
1480 static LRESULT LISTBOX_SetCount( WND *wnd, LB_DESCR *descr, INT32 count )
1481 {
1482 LRESULT ret;
1483
1484 if (HAS_STRINGS(descr)) return LB_ERR;
1485 /* FIXME: this is far from optimal... */
1486 if (count > descr->nb_items)
1487 {
1488 while (count > descr->nb_items)
1489 if ((ret = LISTBOX_InsertString( wnd, descr, -1, 0 )) < 0)
1490 return ret;
1491 }
1492 else if (count < descr->nb_items)
1493 {
1494 while (count < descr->nb_items)
1495 if ((ret = LISTBOX_RemoveItem( wnd, descr, -1 )) < 0)
1496 return ret;
1497 }
1498 return LB_OKAY;
1499 }
1500
1501
1502 /***********************************************************************
1503 * LISTBOX_Directory
1504 */
1505 static LRESULT LISTBOX_Directory( WND *wnd, LB_DESCR *descr, UINT32 attrib,
1506 LPCSTR filespec, BOOL32 long_names )
1507 {
1508 HANDLE32 handle;
1509 LRESULT ret = LB_OKAY;
1510 WIN32_FIND_DATA32A entry;
1511 int pos;
1512
1513 if ((handle = FindFirstFile32A(filespec,&entry)) == INVALID_HANDLE_VALUE32)
1514 {
1515 if (GetLastError() != ERROR_NO_MORE_FILES) return LB_ERR;
1516 }
1517 else
1518 {
1519 do
1520 {
1521 char buffer[270];
1522 if (entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1523 {
1524 if (!(attrib & DDL_DIRECTORY) ||
1525 !strcmp( entry.cAlternateFileName, "." )) continue;
1526 if (long_names) sprintf( buffer, "[%s]", entry.cFileName );
1527 else sprintf( buffer, "[%s]", entry.cAlternateFileName );
1528 }
1529 else /* not a directory */
1530 {
1531 #define ATTRIBS (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | \
1532 FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE)
1533
1534 if ((attrib & DDL_EXCLUSIVE) &&
1535 ((attrib & ATTRIBS) != (entry.dwFileAttributes & ATTRIBS)))
1536 continue;
1537 #undef ATTRIBS
1538 if (long_names) strcpy( buffer, entry.cFileName );
1539 else strcpy( buffer, entry.cAlternateFileName );
1540 }
1541 if (!long_names) CharLower32A( buffer );
1542 pos = LISTBOX_FindFileStrPos( wnd, descr, buffer );
1543 if ((ret = LISTBOX_InsertString( wnd, descr, pos, buffer )) < 0)
1544 break;
1545 } while (FindNextFile32A( handle, &entry ));
1546 FindClose32( handle );
1547 }
1548
1549 if ((ret >= 0) && (attrib & DDL_DRIVES))
1550 {
1551 char buffer[] = "[-a-]";
1552 int drive;
1553 for (drive = 0; drive < MAX_DOS_DRIVES; drive++, buffer[2]++)
1554 {
1555 if (!DRIVE_IsValid(drive)) continue;
1556 if ((ret = LISTBOX_InsertString( wnd, descr, -1, buffer )) < 0)
1557 break;
1558 }
1559 }
1560 return ret;
1561 }
1562
1563
1564 /***********************************************************************
1565 * LISTBOX_HandleVScroll
1566 */
1567 static LRESULT LISTBOX_HandleVScroll( WND *wnd, LB_DESCR *descr,
1568 WPARAM32 wParam, LPARAM lParam )
1569 {
1570 SCROLLINFO info;
1571
1572 if (descr->style & LBS_MULTICOLUMN) return 0;
1573 switch(LOWORD(wParam))
1574 {
1575 case SB_LINEUP:
1576 LISTBOX_SetTopItem( wnd, descr, descr->top_item - 1, TRUE );
1577 break;
1578 case SB_LINEDOWN:
1579 LISTBOX_SetTopItem( wnd, descr, descr->top_item + 1, TRUE );
1580 break;
1581 case SB_PAGEUP:
1582 LISTBOX_SetTopItem( wnd, descr, descr->top_item -
1583 LISTBOX_GetCurrentPageSize( wnd, descr ), TRUE );
1584 break;
1585 case SB_PAGEDOWN:
1586 LISTBOX_SetTopItem( wnd, descr, descr->top_item +
1587 LISTBOX_GetCurrentPageSize( wnd, descr ), TRUE );
1588 break;
1589 case SB_THUMBPOSITION:
1590 LISTBOX_SetTopItem( wnd, descr, HIWORD(wParam), TRUE );
1591 break;
1592 case SB_THUMBTRACK:
1593 info.cbSize = sizeof(info);
1594 info.fMask = SIF_TRACKPOS;
1595 GetScrollInfo32( wnd->hwndSelf, SB_VERT, &info );
1596 LISTBOX_SetTopItem( wnd, descr, info.nTrackPos, TRUE );
1597 break;
1598 case SB_TOP:
1599 LISTBOX_SetTopItem( wnd, descr, 0, TRUE );
1600 break;
1601 case SB_BOTTOM:
1602 LISTBOX_SetTopItem( wnd, descr, descr->nb_items, TRUE );
1603 break;
1604 }
1605 return 0;
1606 }
1607
1608
1609 /***********************************************************************
1610 * LISTBOX_HandleHScroll
1611 */
1612 static LRESULT LISTBOX_HandleHScroll( WND *wnd, LB_DESCR *descr,
1613 WPARAM32 wParam, LPARAM lParam )
1614 {
1615 SCROLLINFO info;
1616 INT32 page;
1617
1618 if (descr->style & LBS_MULTICOLUMN)
1619 {
1620 switch(LOWORD(wParam))
1621 {
1622 case SB_LINELEFT:
1623 LISTBOX_SetTopItem( wnd, descr, descr->top_item-descr->page_size,
1624 TRUE );
1625 break;
1626 case SB_LINERIGHT:
1627 LISTBOX_SetTopItem( wnd, descr, descr->top_item+descr->page_size,
1628 TRUE );
1629 break;
1630 case SB_PAGELEFT:
1631 page = descr->width / descr->column_width;
1632 if (page < 1) page = 1;
1633 LISTBOX_SetTopItem( wnd, descr,
1634 descr->top_item - page * descr->page_size, TRUE );
1635 break;
1636 case SB_PAGERIGHT:
1637 page = descr->width / descr->column_width;
1638 if (page < 1) page = 1;
1639 LISTBOX_SetTopItem( wnd, descr,
1640 descr->top_item + page * descr->page_size, TRUE );
1641 break;
1642 case SB_THUMBPOSITION:
1643 LISTBOX_SetTopItem( wnd, descr, HIWORD(wParam)*descr->page_size,
1644 TRUE );
1645 break;
1646 case SB_THUMBTRACK:
1647 info.cbSize = sizeof(info);
1648 info.fMask = SIF_TRACKPOS;
1649 GetScrollInfo32( wnd->hwndSelf, SB_VERT, &info );
1650 LISTBOX_SetTopItem( wnd, descr, info.nTrackPos*descr->page_size,
1651 TRUE );
1652 break;
1653 case SB_LEFT:
1654 LISTBOX_SetTopItem( wnd, descr, 0, TRUE );
1655 break;
1656 case SB_RIGHT:
1657 LISTBOX_SetTopItem( wnd, descr, descr->nb_items, TRUE );
1658 break;
1659 }
1660 }
1661 else if (descr->horz_extent)
1662 {
1663 switch(LOWORD(wParam))
1664 {
1665 case SB_LINELEFT:
1666 LISTBOX_SetHorizontalPos( wnd, descr, descr->horz_pos - 1 );
1667 break;
1668 case SB_LINERIGHT:
1669 LISTBOX_SetHorizontalPos( wnd, descr, descr->horz_pos + 1 );
1670 break;
1671 case SB_PAGELEFT:
1672 LISTBOX_SetHorizontalPos( wnd, descr,
1673 descr->horz_pos - descr->width );
1674 break;
1675 case SB_PAGERIGHT:
1676 LISTBOX_SetHorizontalPos( wnd, descr,
1677 descr->horz_pos + descr->width );
1678 break;
1679 case SB_THUMBPOSITION:
1680 LISTBOX_SetHorizontalPos( wnd, descr, HIWORD(wParam) );
1681 break;
1682 case SB_THUMBTRACK:
1683 info.cbSize = sizeof(info);
1684 info.fMask = SIF_TRACKPOS;
1685 GetScrollInfo32( wnd->hwndSelf, SB_HORZ, &info );
1686 LISTBOX_SetHorizontalPos( wnd, descr, info.nTrackPos );
1687 break;
1688 case SB_LEFT:
1689 LISTBOX_SetHorizontalPos( wnd, descr, 0 );
1690 break;
1691 case SB_RIGHT:
1692 LISTBOX_SetHorizontalPos( wnd, descr,
1693 descr->horz_extent - descr->width );
1694 break;
1695 }
1696 }
1697 return 0;
1698 }
1699
1700
1701 /***********************************************************************
1702 * LISTBOX_HandleLButtonDown
1703 */
1704 static LRESULT LISTBOX_HandleLButtonDown( WND *wnd, LB_DESCR *descr,
1705 WPARAM32 wParam, INT32 x, INT32 y )
1706 {
1707 INT32 index = LISTBOX_GetItemFromPoint( wnd, descr, x, y );
1708 TRACE(listbox, "[%04x]: lbuttondown %d,%d item %d\n",
1709 wnd->hwndSelf, x, y, index );
1710 if (!descr->caret_on && (GetFocus32() == wnd->hwndSelf)) return 0;
1711 if (index != -1)
1712 {
1713 if (descr->style & LBS_EXTENDEDSEL)
1714 {
1715 if (!(wParam & MK_SHIFT)) descr->anchor_item = index;
1716 if (wParam & MK_CONTROL)
1717 {
1718 LISTBOX_SetCaretIndex( wnd, descr, index, FALSE );
1719 LISTBOX_SetSelection( wnd, descr, index,
1720 !descr->items[index].selected, FALSE );
1721 }
1722 else LISTBOX_MoveCaret( wnd, descr, index, FALSE );
1723 }
1724 else
1725 {
1726 LISTBOX_MoveCaret( wnd, descr, index, FALSE );
1727 LISTBOX_SetSelection( wnd, descr, index,
1728 (!(descr->style & LBS_MULTIPLESEL) ||
1729 !descr->items[index].selected), FALSE );
1730 }
1731 }
1732
1733 if( !descr->lphc ) SetFocus32( wnd->hwndSelf );
1734 else SetFocus32( (descr->lphc->hWndEdit) ? descr->lphc->hWndEdit
1735 : descr->lphc->self->hwndSelf ) ;
1736
1737 SetCapture32( wnd->hwndSelf );
1738 if (index != -1 && !descr->lphc)
1739 {
1740 if (descr->style & LBS_NOTIFY )
1741 SendMessage32A( descr->owner, WM_LBTRACKPOINT, index,
1742 MAKELPARAM( x, y ) );
1743 if (wnd->dwExStyle & WS_EX_DRAGDETECT)
1744 {
1745 POINT32 pt = { x, y };
1746 if (DragDetect32( wnd->hwndSelf, pt ))
1747 SendMessage32A( descr->owner, WM_BEGINDRAG, 0, 0 );
1748 }
1749 }
1750 return 0;
1751 }
1752
1753
1754 /***********************************************************************
1755 * LISTBOX_HandleLButtonUp
1756 */
1757 static LRESULT LISTBOX_HandleLButtonUp( WND *wnd, LB_DESCR *descr )
1758 {
1759 if (LISTBOX_Timer != LB_TIMER_NONE)
1760 KillSystemTimer32( wnd->hwndSelf, LB_TIMER_ID );
1761 LISTBOX_Timer = LB_TIMER_NONE;
1762 if (GetCapture32() == wnd->hwndSelf)
1763 {
1764 ReleaseCapture();
1765 if (descr->style & LBS_NOTIFY)
1766 SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
1767 }
1768 return 0;
1769 }
1770
1771
1772 /***********************************************************************
1773 * LISTBOX_HandleTimer
1774 *
1775 * Handle scrolling upon a timer event.
1776 * Return TRUE if scrolling should continue.
1777 */
1778 static LRESULT LISTBOX_HandleTimer( WND *wnd, LB_DESCR *descr,
1779 INT32 index, TIMER_DIRECTION dir )
1780 {
1781 switch(dir)
1782 {
1783 case LB_TIMER_UP:
1784 if (descr->top_item) index = descr->top_item - 1;
1785 else index = 0;
1786 break;
1787 case LB_TIMER_LEFT:
1788 if (descr->top_item) index -= descr->page_size;
1789 break;
1790 case LB_TIMER_DOWN:
1791 index = descr->top_item + LISTBOX_GetCurrentPageSize( wnd, descr );
1792 if (index == descr->focus_item) index++;
1793 if (index >= descr->nb_items) index = descr->nb_items - 1;
1794 break;
1795 case LB_TIMER_RIGHT:
1796 if (index + descr->page_size < descr->nb_items)
1797 index += descr->page_size;
1798 break;
1799 case LB_TIMER_NONE:
1800 break;
1801 }
1802 if (index == descr->focus_item) return FALSE;
1803 LISTBOX_MoveCaret( wnd, descr, index, FALSE );
1804 return TRUE;
1805 }
1806
1807
1808 /***********************************************************************
1809 * LISTBOX_HandleSystemTimer
1810 *
1811 * WM_SYSTIMER handler.
1812 */
1813 static LRESULT LISTBOX_HandleSystemTimer( WND *wnd, LB_DESCR *descr )
1814 {
1815 if (!LISTBOX_HandleTimer( wnd, descr, descr->focus_item, LISTBOX_Timer ))
1816 {
1817 KillSystemTimer32( wnd->hwndSelf, LB_TIMER_ID );
1818 LISTBOX_Timer = LB_TIMER_NONE;
1819 }
1820 return 0;
1821 }
1822
1823
1824 /***********************************************************************
1825 * LISTBOX_HandleMouseMove
1826 *
1827 * WM_MOUSEMOVE handler.
1828 */
1829 static void LISTBOX_HandleMouseMove( WND *wnd, LB_DESCR *descr,
1830 INT32 x, INT32 y )
1831 {
1832 INT32 index;
1833 TIMER_DIRECTION dir;
1834
1835 if (descr->style & LBS_MULTICOLUMN)
1836 {
1837 if (y < 0) y = 0;
1838 else if (y >= descr->item_height * descr->page_size)
1839 y = descr->item_height * descr->page_size - 1;
1840
1841 if (x < 0)
1842 {
1843 dir = LB_TIMER_LEFT;
1844 x = 0;
1845 }
1846 else if (x >= descr->width)
1847 {
1848 dir = LB_TIMER_RIGHT;
1849 x = descr->width - 1;
1850 }
1851 else dir = LB_TIMER_NONE; /* inside */
1852 }
1853 else
1854 {
1855 if (y < 0) dir = LB_TIMER_UP; /* above */
1856 else if (y >= descr->height) dir = LB_TIMER_DOWN; /* below */
1857 else dir = LB_TIMER_NONE; /* inside */
1858 }
1859
1860 index = LISTBOX_GetItemFromPoint( wnd, descr, x, y );
1861 if (index == -1) index = descr->focus_item;
1862 if (!LISTBOX_HandleTimer( wnd, descr, index, dir )) dir = LB_TIMER_NONE;
1863
1864 /* Start/stop the system timer */
1865
1866 if (dir != LB_TIMER_NONE)
1867 SetSystemTimer32( wnd->hwndSelf, LB_TIMER_ID, LB_SCROLL_TIMEOUT, NULL);
1868 else if (LISTBOX_Timer != LB_TIMER_NONE)
1869 KillSystemTimer32( wnd->hwndSelf, LB_TIMER_ID );
1870 LISTBOX_Timer = dir;
1871 }
1872
1873
1874 /***********************************************************************
1875 * LISTBOX_HandleKeyDown
1876 */
1877 static LRESULT LISTBOX_HandleKeyDown( WND *wnd, LB_DESCR *descr, WPARAM32 wParam )
1878 {
1879 INT32 caret = -1;
1880 if (descr->style & LBS_WANTKEYBOARDINPUT)
1881 {
1882 caret = SendMessage32A( descr->owner, WM_VKEYTOITEM,
1883 MAKEWPARAM(LOWORD(wParam), descr->focus_item),
1884 wnd->hwndSelf );
1885 if (caret == -2) return 0;
1886 }
1887 if (caret == -1) switch(wParam)
1888 {
1889 case VK_LEFT:
1890 if (descr->style & LBS_MULTICOLUMN)
1891 {
1892 if (descr->focus_item >= descr->page_size)
1893 caret = descr->focus_item - descr->page_size;
1894 break;
1895 }
1896 /* fall through */
1897 case VK_UP:
1898 caret = descr->focus_item - 1;
1899 if (caret < 0) caret = 0;
1900 break;
1901 case VK_RIGHT:
1902 if (descr->style & LBS_MULTICOLUMN)
1903 {
1904 if (descr->focus_item + descr->page_size < descr->nb_items)
1905 caret = descr->focus_item + descr->page_size;
1906 break;
1907 }
1908 /* fall through */
1909 case VK_DOWN:
1910 caret = descr->focus_item + 1;
1911 if (caret >= descr->nb_items) caret = descr->nb_items - 1;
1912 break;
1913 case VK_PRIOR:
1914 if (descr->style & LBS_MULTICOLUMN)
1915 {
1916 INT32 page = descr->width / descr->column_width;
1917 if (page < 1) page = 1;
1918 caret = descr->focus_item - (page * descr->page_size) + 1;
1919 }
1920 else caret = descr->focus_item-LISTBOX_GetCurrentPageSize(wnd,descr)+1;
1921 if (caret < 0) caret = 0;
1922 break;
1923 case VK_NEXT:
1924 if (descr->style & LBS_MULTICOLUMN)
1925 {
1926 INT32 page = descr->width / descr->column_width;
1927 if (page < 1) page = 1;
1928 caret = descr->focus_item + (page * descr->page_size) - 1;
1929 }
1930 else caret = descr->focus_item+LISTBOX_GetCurrentPageSize(wnd,descr)-1;
1931 if (caret >= descr->nb_items) caret = descr->nb_items - 1;
1932 break;
1933 case VK_HOME:
1934 caret = 0;
1935 break;
1936 case VK_END:
1937 caret = descr->nb_items - 1;
1938 break;
1939 case VK_SPACE:
1940 if (descr->style & LBS_EXTENDEDSEL) caret = descr->focus_item;
1941 else if (descr->style & LBS_MULTIPLESEL)
1942 {
1943 LISTBOX_SetSelection( wnd, descr, descr->focus_item,
1944 !descr->items[descr->focus_item].selected,
1945 (descr->style & LBS_NOTIFY) != 0 );
1946 }
1947 else if (descr->selected_item == -1)
1948 {
1949 LISTBOX_SetSelection( wnd, descr, descr->focus_item, TRUE,
1950 (descr->style & LBS_NOTIFY) != 0 );
1951 }
1952 break;
1953 }
1954 if (caret >= 0)
1955 {
1956 if ((descr->style & LBS_EXTENDEDSEL) &&
1957 !(GetKeyState32( VK_SHIFT ) & 0x8000))
1958 descr->anchor_item = caret;
1959 LISTBOX_MoveCaret( wnd, descr, caret, TRUE );
1960 if (descr->style & LBS_NOTIFY)
1961 {
1962 if( descr->lphc && CB_GETTYPE(descr->lphc) != CBS_SIMPLE )
1963 {
1964 /* make sure that combo parent doesn't hide us */
1965 descr->lphc->wState |= CBF_NOROLLUP;
1966 }
1967 SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
1968 }
1969 }
1970 return 0;
1971 }
1972
1973
1974 /***********************************************************************
1975 * LISTBOX_HandleChar
1976 */
1977 static LRESULT LISTBOX_HandleChar( WND *wnd, LB_DESCR *descr,
1978 WPARAM32 wParam )
1979 {
1980 INT32 caret = -1;
1981 char str[2] = { wParam & 0xff, '\0' };
1982
1983 if (descr->style & LBS_WANTKEYBOARDINPUT)
1984 {
1985 caret = SendMessage32A( descr->owner, WM_CHARTOITEM,
1986 MAKEWPARAM(LOWORD(wParam), descr->focus_item),
1987 wnd->hwndSelf );
1988 if (caret == -2) return 0;
1989 }
1990 if (caret == -1)
1991 caret = LISTBOX_FindString( wnd, descr, descr->focus_item, str, FALSE);
1992 if (caret != -1)
1993 {
1994 LISTBOX_MoveCaret( wnd, descr, caret, TRUE );
1995 if (descr->style & LBS_NOTIFY)
1996 SEND_NOTIFICATION( wnd, descr, LBN_SELCHANGE );
1997 }
1998 return 0;
1999 }
2000
2001
2002 /***********************************************************************
2003 * LISTBOX_Create
2004 */
2005 static BOOL32 LISTBOX_Create( WND *wnd, LPHEADCOMBO lphc )
2006 {
2007 LB_DESCR *descr;
2008 MEASUREITEMSTRUCT32 mis;
2009 RECT32 rect;
2010
2011 if (!(descr = HeapAlloc( GetProcessHeap(), 0, sizeof(*descr) )))
2012 return FALSE;
2013 if (!(descr->heap = HeapCreate( 0, 0x10000, 0 )))
2014 {
2015 HeapFree( GetProcessHeap(), 0, descr );
2016 return FALSE;
2017 }
2018 GetClientRect32( wnd->hwndSelf, &rect );
2019 descr->owner = GetParent32( wnd->hwndSelf );
2020 descr->style = wnd->dwStyle;
2021 descr->width = rect.right - rect.left;
2022 descr->height = rect.bottom - rect.top;
2023 descr->items = NULL;
2024 descr->nb_items = 0;
2025 descr->top_item = 0;
2026 descr->selected_item = -1;
2027 descr->focus_item = 0;
2028 descr->anchor_item = -1;
2029 descr->item_height = 1;
2030 descr->page_size = 1;
2031 descr->column_width = 150;
2032 descr->horz_extent = (wnd->dwStyle & WS_HSCROLL) ? 1 : 0;
2033 descr->horz_pos = 0;
2034 descr->nb_tabs = 0;
2035 descr->tabs = NULL;
2036 descr->caret_on = TRUE;
2037 descr->font = 0;
2038 descr->locale = 0; /* FIXME */
2039 descr->lphc = lphc;
2040
2041 if( lphc )
2042 {
2043 TRACE(combo,"[%04x]: resetting owner %04x -> %04x\n",
2044 wnd->hwndSelf, descr->owner, lphc->self->hwndSelf );
2045 descr->owner = lphc->self->hwndSelf;
2046 }
2047
2048 *(LB_DESCR **)wnd->wExtra = descr;
2049
2050 /* if (wnd->dwExStyle & WS_EX_NOPARENTNOTIFY) descr->style &= ~LBS_NOTIFY;
2051 */
2052 if (descr->style & LBS_EXTENDEDSEL) descr->style |= LBS_MULTIPLESEL;
2053 if (descr->style & LBS_MULTICOLUMN) descr->style &= ~LBS_OWNERDRAWVARIABLE;
2054 if (descr->style & LBS_OWNERDRAWVARIABLE) descr->style |= LBS_NOINTEGRALHEIGHT;
2055 descr->item_height = LISTBOX_SetFont( wnd, descr, 0 );
2056
2057 if (descr->style & LBS_OWNERDRAWFIXED)
2058 {
2059 if( descr->lphc && (descr->lphc->dwStyle & CBS_DROPDOWN))
2060 {
2061 /* WinWord gets VERY unhappy if we send WM_MEASUREITEM from here */
2062 descr->item_height = lphc->RectButton.bottom - lphc->RectButton.top - 6;
2063 }
2064 else
2065 {
2066 UINT32 id = (descr->lphc ) ? ID_CB_LISTBOX : wnd->wIDmenu;
2067
2068 mis.CtlType = ODT_LISTBOX;
2069 mis.CtlID = id;
2070 mis.itemID = -1;
2071 mis.itemWidth = 0;
2072 mis.itemData = 0;
2073 mis.itemHeight = descr->item_height;
2074 SendMessage32A( descr->owner, WM_MEASUREITEM, id, (LPARAM)&mis );
2075 descr->item_height = mis.itemHeight ? mis.itemHeight : 1;
2076 }
2077 }
2078
2079 return TRUE;
2080 }
2081
2082
2083 /***********************************************************************
2084 * LISTBOX_Destroy
2085 */
2086 static BOOL32 LISTBOX_Destroy( WND *wnd, LB_DESCR *descr )
2087 {
2088 LISTBOX_ResetContent( wnd, descr );
2089 HeapDestroy( descr->heap );
2090 HeapFree( GetProcessHeap(), 0, descr );
2091 wnd->wExtra[0] = 0;
2092 return TRUE;
2093 }
2094
2095
2096 /***********************************************************************
2097 * ListBoxWndProc
2098 */
2099 LRESULT WINAPI ListBoxWndProc( HWND32 hwnd, UINT32 msg,
2100 WPARAM32 wParam, LPARAM lParam )
2101 {
2102 LRESULT ret;
2103 LB_DESCR *descr;
2104 WND *wnd = WIN_FindWndPtr( hwnd );
2105
2106 if (!wnd) return 0;
2107 if (!(descr = *(LB_DESCR **)wnd->wExtra))
2108 {
2109 if (msg == WM_CREATE)
2110 {
2111 if (!LISTBOX_Create( wnd, NULL )) return -1;
2112 TRACE(listbox, "creating wnd=%04x descr=%p\n",
2113 hwnd, *(LB_DESCR **)wnd->wExtra );
2114 return 0;
2115 }
2116 /* Ignore all other messages before we get a WM_CREATE */
2117 return DefWindowProc32A( hwnd, msg, wParam, lParam );
2118 }
2119
2120 TRACE(listbox, "[%04x]: msg %s wp %08x lp %08lx\n",
2121 wnd->hwndSelf, SPY_GetMsgName(msg), wParam, lParam );
2122 switch(msg)
2123 {
2124 case LB_RESETCONTENT16:
2125 case LB_RESETCONTENT32:
2126 LISTBOX_ResetContent( wnd, descr );
2127 return 0;
2128
2129 case LB_ADDSTRING16:
2130 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2131 /* fall through */
2132 case LB_ADDSTRING32:
2133 wParam = LISTBOX_FindStringPos( wnd, descr, (LPCSTR)lParam, FALSE );
2134 return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
2135
2136 case LB_INSERTSTRING16:
2137 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2138 wParam = (INT32)(INT16)wParam;
2139 /* fall through */
2140 case LB_INSERTSTRING32:
2141 return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
2142
2143 case LB_ADDFILE16:
2144 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2145 /* fall through */
2146 case LB_ADDFILE32:
2147 wParam = LISTBOX_FindFileStrPos( wnd, descr, (LPCSTR)lParam );
2148 return LISTBOX_InsertString( wnd, descr, wParam, (LPCSTR)lParam );
2149
2150 case LB_DELETESTRING16:
2151 case LB_DELETESTRING32:
2152 return LISTBOX_RemoveItem( wnd, descr, wParam );
2153
2154 case LB_GETITEMDATA16:
2155 case LB_GETITEMDATA32:
2156 if (((INT32)wParam < 0) || ((INT32)wParam >= descr->nb_items))
2157 return LB_ERR;
2158 return descr->items[wParam].data;
2159
2160 case LB_SETITEMDATA16:
2161 case LB_SETITEMDATA32:
2162 if (((INT32)wParam < 0) || ((INT32)wParam >= descr->nb_items))
2163 return LB_ERR;
2164 descr->items[wParam].data = (DWORD)lParam;
2165 return LB_OKAY;
2166
2167 case LB_GETCOUNT16:
2168 case LB_GETCOUNT32:
2169 return descr->nb_items;
2170
2171 case LB_GETTEXT16:
2172 lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2173 /* fall through */
2174 case LB_GETTEXT32:
2175 return LISTBOX_GetText( wnd, descr, wParam, (LPSTR)lParam );
2176
2177 case LB_GETTEXTLEN16:
2178 /* fall through */
2179 case LB_GETTEXTLEN32:
2180 if (wParam >= descr->nb_items) return LB_ERR;
2181 return (HAS_STRINGS(descr) ? strlen(descr->items[wParam].str)
2182 : sizeof(DWORD));
2183
2184 case LB_GETCURSEL16:
2185 case LB_GETCURSEL32:
2186 return descr->selected_item;
2187
2188 case LB_GETTOPINDEX16:
2189 case LB_GETTOPINDEX32:
2190 return descr->top_item;
2191
2192 case LB_GETITEMHEIGHT16:
2193 case LB_GETITEMHEIGHT32:
2194 return LISTBOX_GetItemHeight( wnd, descr, wParam );
2195
2196 case LB_SETITEMHEIGHT16:
2197 lParam = LOWORD(lParam);
2198 /* fall through */
2199 case LB_SETITEMHEIGHT32:
2200 return LISTBOX_SetItemHeight( wnd, descr, wParam, lParam );
2201
2202 case LB_ITEMFROMPOINT32:
2203 {
2204 POINT32 pt = { LOWORD(lParam), HIWORD(lParam) };
2205 RECT32 rect = { 0, 0, descr->width, descr->height };
2206 return MAKELONG( LISTBOX_GetItemFromPoint(wnd, descr, pt.x, pt.y),
2207 PtInRect32( &rect, pt ) );
2208 }
2209
2210 case LB_SETCARETINDEX16:
2211 case LB_SETCARETINDEX32:
2212 return LISTBOX_SetCaretIndex( wnd, descr, wParam, !lParam );
2213
2214 case LB_GETCARETINDEX16:
2215 case LB_GETCARETINDEX32:
2216 return descr->focus_item;
2217
2218 case LB_SETTOPINDEX16:
2219 case LB_SETTOPINDEX32:
2220 return LISTBOX_SetTopItem( wnd, descr, wParam, TRUE );
2221
2222 case LB_SETCOLUMNWIDTH16:
2223 case LB_SETCOLUMNWIDTH32:
2224 return LISTBOX_SetColumnWidth( wnd, descr, wParam );
2225
2226 case LB_GETITEMRECT16:
2227 {
2228 RECT32 rect;
2229 ret = LISTBOX_GetItemRect( wnd, descr, (INT16)wParam, &rect );
2230 CONV_RECT32TO16( &rect, (RECT16 *)PTR_SEG_TO_LIN(lParam) );
2231 }
2232 return ret;
2233
2234 case LB_GETITEMRECT32:
2235 return LISTBOX_GetItemRect( wnd, descr, wParam, (RECT32 *)lParam );
2236
2237 case LB_FINDSTRING16:
2238 wParam = (INT32)(INT16)wParam;
2239 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2240 /* fall through */
2241 case LB_FINDSTRING32:
2242 return LISTBOX_FindString( wnd, descr, wParam, (LPCSTR)lParam, FALSE );
2243
2244 case LB_FINDSTRINGEXACT16:
2245 wParam = (INT32)(INT16)wParam;
2246 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2247 /* fall through */
2248 case LB_FINDSTRINGEXACT32:
2249 return LISTBOX_FindString( wnd, descr, wParam, (LPCSTR)lParam, TRUE );
2250
2251 case LB_SELECTSTRING16:
2252 wParam = (INT32)(INT16)wParam;
2253 if (HAS_STRINGS(descr)) lParam = (LPARAM)PTR_SEG_TO_LIN(lParam);
2254 /* fall through */
2255 case LB_SELECTSTRING32:
2256 {
2257 INT32 index = LISTBOX_FindString( wnd, descr, wParam,
2258 (LPCSTR)lParam, FALSE );
2259 if (index == LB_ERR) return LB_ERR;
2260 LISTBOX_SetSelection( wnd, descr, index, TRUE, FALSE );
2261 return index;
2262 }
2263
2264 case LB_GETSEL16:
2265 wParam = (INT32)(INT16)wParam;
2266 /* fall through */
2267 case LB_GETSEL32:
2268 if (((INT32)wParam < 0) || ((INT32)wParam >= descr->nb_items))
2269 return LB_ERR;
2270 return descr->items[wParam].selected;
2271
2272 case LB_SETSEL16:
2273 lParam = (INT32)(INT16)lParam;
2274 /* fall through */
2275 case LB_SETSEL32:
2276 return LISTBOX_SetSelection( wnd, descr, lParam, wParam, FALSE );
2277
2278 case LB_SETCURSEL16:
2279 wParam = (INT32)(INT16)wParam;
2280 /* fall through */
2281 case LB_SETCURSEL32:
2282 if (wParam != -1) LISTBOX_MakeItemVisible( wnd, descr, wParam, TRUE );
2283 return LISTBOX_SetSelection( wnd, descr, wParam, TRUE, (descr->lphc != NULL) );
2284
2285 case LB_GETSELCOUNT16:
2286 case LB_GETSELCOUNT32:
2287 return LISTBOX_GetSelCount( wnd, descr );
2288
2289 case LB_GETSELITEMS16:
2290 return LISTBOX_GetSelItems16( wnd, descr, wParam,
2291 (LPINT16)PTR_SEG_TO_LIN(lParam) );
2292
2293 case LB_GETSELITEMS32:
2294 return LISTBOX_GetSelItems32( wnd, descr, wParam, (LPINT32)lParam );
2295
2296 case LB_SELITEMRANGE16:
2297 case LB_SELITEMRANGE32:
2298 if (LOWORD(lParam) <= HIWORD(lParam))
2299 return LISTBOX_SelectItemRange( wnd, descr, LOWORD(lParam),
2300 HIWORD(lParam), wParam );
2301 else
2302 return LISTBOX_SelectItemRange( wnd, descr, HIWORD(lParam),
2303 LOWORD(lParam), wParam );
2304
2305 case LB_SELITEMRANGEEX16:
2306 case LB_SELITEMRANGEEX32:
2307 if ((INT32)lParam >= (INT32)wParam)
2308 return LISTBOX_SelectItemRange( wnd, descr, wParam, lParam, TRUE );
2309 else
2310 return LISTBOX_SelectItemRange( wnd, descr, lParam, wParam, FALSE);
2311
2312 case LB_GETHORIZONTALEXTENT16:
2313 case LB_GETHORIZONTALEXTENT32:
2314 return descr->horz_extent;
2315
2316 case LB_SETHORIZONTALEXTENT16:
2317 case LB_SETHORIZONTALEXTENT32:
2318 return LISTBOX_SetHorizontalExtent( wnd, descr, wParam );
2319
2320 case LB_GETANCHORINDEX16:
2321 case LB_GETANCHORINDEX32:
2322 return descr->anchor_item;
2323
2324 case LB_SETANCHORINDEX16:
2325 wParam = (INT32)(INT16)wParam;
2326 /* fall through */
2327 case LB_SETANCHORINDEX32:
2328 if (((INT32)wParam < -1) || ((INT32)wParam >= descr->nb_items))
2329 return LB_ERR;
2330 descr->anchor_item = (INT32)wParam;
2331 return LB_OKAY;
2332
2333 case LB_DIR16:
2334 return LISTBOX_Directory( wnd, descr, wParam,
2335 (LPCSTR)PTR_SEG_TO_LIN(lParam), FALSE );
2336
2337 case LB_DIR32:
2338 return LISTBOX_Directory( wnd, descr, wParam, (LPCSTR)lParam, TRUE );
2339
2340 case LB_GETLOCALE32:
2341 return descr->locale;
2342
2343 case LB_SETLOCALE32:
2344 descr->locale = (LCID)wParam; /* FIXME: should check for valid lcid */
2345 return LB_OKAY;
2346
2347 case LB_INITSTORAGE32:
2348 return LISTBOX_InitStorage( wnd, descr, wParam, (DWORD)lParam );
2349
2350 case LB_SETCOUNT32:
2351 return LISTBOX_SetCount( wnd, descr, (INT32)wParam );
2352
2353 case LB_SETTABSTOPS16:
2354 return LISTBOX_SetTabStops( wnd, descr, (INT32)(INT16)wParam,
2355 (LPINT32)PTR_SEG_TO_LIN(lParam), TRUE );
2356
2357 case LB_SETTABSTOPS32:
2358 return LISTBOX_SetTabStops( wnd, descr, wParam,
2359 (LPINT32)lParam, FALSE );
2360
2361 case LB_CARETON16:
2362 case LB_CARETON32:
2363 if (descr->caret_on) return LB_OKAY;
2364 descr->caret_on = TRUE;
2365 if ((descr->focus_item != -1) && (GetFocus32() == wnd->hwndSelf))
2366 LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
2367 return LB_OKAY;
2368
2369 case LB_CARETOFF16:
2370 case LB_CARETOFF32:
2371 if (!descr->caret_on) return LB_OKAY;
2372 descr->caret_on = FALSE;
2373 if ((descr->focus_item != -1) && (GetFocus32() == wnd->hwndSelf))
2374 LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
2375 return LB_OKAY;
2376
2377 case WM_DESTROY:
2378 return LISTBOX_Destroy( wnd, descr );
2379
2380 case WM_ENABLE:
2381 InvalidateRect32( hwnd, NULL, TRUE );
2382 return 0;
2383
2384 case WM_SETREDRAW:
2385 LISTBOX_SetRedraw( wnd, descr, wParam != 0 );
2386 return 0;
2387
2388 case WM_GETDLGCODE:
2389 return DLGC_WANTARROWS | DLGC_WANTCHARS;
2390
2391 case WM_PAINT:
2392 {
2393 PAINTSTRUCT32 ps;
2394 HDC32 hdc = ( wParam ) ? ((HDC32)wParam)
2395 : BeginPaint32( hwnd, &ps );
2396 ret = LISTBOX_Paint( wnd, descr, hdc );
2397 if( !wParam ) EndPaint32( hwnd, &ps );
2398 }
2399 return ret;
2400
2401 case WM_SIZE:
2402 LISTBOX_UpdateSize( wnd, descr );
2403 return 0;
2404
2405 case WM_GETFONT:
2406 return descr->font;
2407
2408 case WM_SETFONT:
2409 LISTBOX_SetFont( wnd, descr, (HFONT32)wParam );
2410 if (lParam) InvalidateRect32( wnd->hwndSelf, 0, TRUE );
2411 return 0;
2412
2413 case WM_SETFOCUS:
2414 descr->caret_on = TRUE;
2415 if (descr->focus_item != -1)
2416 LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
2417 SEND_NOTIFICATION( wnd, descr, LBN_SETFOCUS );
2418 return 0;
2419
2420 case WM_KILLFOCUS:
2421 if ((descr->focus_item != -1) && descr->caret_on)
2422 LISTBOX_RepaintItem( wnd, descr, descr->focus_item, ODA_FOCUS );
2423 SEND_NOTIFICATION( wnd, descr, LBN_KILLFOCUS );
2424 return 0;
2425
2426 case WM_HSCROLL:
2427 return LISTBOX_HandleHScroll( wnd, descr, wParam, lParam );
2428
2429 case WM_VSCROLL:
2430 return LISTBOX_HandleVScroll( wnd, descr, wParam, lParam );
2431
2432 case WM_LBUTTONDOWN:
2433 return LISTBOX_HandleLButtonDown( wnd, descr, wParam,
2434 (INT16)LOWORD(lParam),
2435 (INT16)HIWORD(lParam) );
2436
2437 case WM_LBUTTONDBLCLK:
2438 if (descr->style & LBS_NOTIFY)
2439 SEND_NOTIFICATION( wnd, descr, LBN_DBLCLK );
2440 return 0;
2441
2442 case WM_MOUSEMOVE:
2443 if (GetCapture32() == hwnd)
2444 LISTBOX_HandleMouseMove( wnd, descr, (INT16)LOWORD(lParam),
2445 (INT16)HIWORD(lParam) );
2446 return 0;
2447
2448 case WM_LBUTTONUP:
2449 return LISTBOX_HandleLButtonUp( wnd, descr );
2450
2451 case WM_KEYDOWN:
2452 return LISTBOX_HandleKeyDown( wnd, descr, wParam );
2453
2454 case WM_CHAR:
2455 return LISTBOX_HandleChar( wnd, descr, wParam );
2456
2457 case WM_SYSTIMER:
2458 return LISTBOX_HandleSystemTimer( wnd, descr );
2459
2460 case WM_ERASEBKGND:
2461 if (IS_OWNERDRAW(descr))
2462 {
2463 RECT32 rect = { 0, 0, descr->width, descr->height };
2464 HBRUSH32 hbrush = SendMessage32A( descr->owner, WM_CTLCOLORLISTBOX,
2465 wParam, (LPARAM)wnd->hwndSelf );
2466 if (hbrush) FillRect32( (HDC32)wParam, &rect, hbrush );
2467 }
2468 return 1;
2469
2470 case WM_DROPFILES:
2471 if( !descr->lphc )
2472 return SendMessage32A( descr->owner, msg, wParam, lParam );
2473 break;
2474
2475 case WM_DROPOBJECT:
2476 case WM_QUERYDROPOBJECT:
2477 case WM_DRAGSELECT:
2478 case WM_DRAGMOVE:
2479 if( !descr->lphc )
2480 {
2481 LPDRAGINFO dragInfo = (LPDRAGINFO)PTR_SEG_TO_LIN( (SEGPTR)lParam );
2482 dragInfo->l = LISTBOX_GetItemFromPoint( wnd, descr, dragInfo->pt.x,
2483 dragInfo->pt.y );
2484 return SendMessage32A( descr->owner, msg, wParam, lParam );
2485 }
2486 break;
2487
2488 case WM_NCCREATE:
2489 if (TWEAK_WineLook > WIN31_LOOK)
2490 wnd->dwExStyle |= WS_EX_CLIENTEDGE;
2491 return DefWindowProc32A( hwnd, msg, wParam, lParam );
2492
2493 default:
2494 if ((msg >= WM_USER) && (msg < 0xc000))
2495 WARN(listbox, "[%04x]: unknown msg %04x wp %08x lp %08lx\n",
2496 hwnd, msg, wParam, lParam );
2497 return DefWindowProc32A( hwnd, msg, wParam, lParam );
2498 }
2499 return 0;
2500 }
2501
2502 /***********************************************************************
2503 * COMBO_Directory
2504 */
2505 LRESULT COMBO_Directory( LPHEADCOMBO lphc, UINT32 attrib, LPSTR dir, BOOL32 bLong)
2506 {
2507 WND *wnd = WIN_FindWndPtr( lphc->hWndLBox );
2508
2509 if( wnd )
2510 {
2511 LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
2512 if( descr )
2513 {
2514 LRESULT lRet = LISTBOX_Directory( wnd, descr, attrib, dir, bLong );
2515
2516 RedrawWindow32( lphc->self->hwndSelf, NULL, 0,
2517 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
2518 return lRet;
2519 }
2520 }
2521 return CB_ERR;
2522 }
2523
2524 /***********************************************************************
2525 * ComboLBWndProc
2526 *
2527 * NOTE: in Windows, winproc address of the ComboLBox is the same
2528 * as that of the Listbox.
2529 */
2530 LRESULT WINAPI ComboLBWndProc( HWND32 hwnd, UINT32 msg,
2531 WPARAM32 wParam, LPARAM lParam )
2532 {
2533 LRESULT lRet = 0;
2534 WND *wnd = WIN_FindWndPtr( hwnd );
2535
2536 if (wnd)
2537 {
2538 LB_DESCR *descr = *(LB_DESCR **)wnd->wExtra;
2539
2540 TRACE(combo, "[%04x]: msg %s wp %08x lp %08lx\n",
2541 wnd->hwndSelf, SPY_GetMsgName(msg), wParam, lParam );
2542
2543 if( descr || msg == WM_CREATE )
2544 {
2545 LPHEADCOMBO lphc = (descr) ? descr->lphc : NULL;
2546
2547 switch( msg )
2548 {
2549 case WM_CREATE:
2550 #define lpcs ((LPCREATESTRUCT32A)lParam)
2551 TRACE(combo, "\tpassed parent handle = 0x%08x\n",
2552 (UINT32)lpcs->lpCreateParams);
2553
2554 lphc = (LPHEADCOMBO)(lpcs->lpCreateParams);
2555 #undef lpcs
2556 return LISTBOX_Create( wnd, lphc );
2557
2558 case WM_LBUTTONDOWN:
2559 return LISTBOX_HandleLButtonDown( wnd, descr, wParam,
2560 (INT16)LOWORD(lParam), (INT16)HIWORD(lParam));
2561
2562 /* avoid activation at all costs */
2563
2564 case WM_MOUSEACTIVATE:
2565 return MA_NOACTIVATE;
2566
2567 case WM_NCACTIVATE:
2568 return FALSE;
2569
2570 case WM_KEYDOWN:
2571 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
2572 {
2573 /* for some reason(?) Windows makes it possible to
2574 * show/hide ComboLBox by sending it WM_KEYDOWNs */
2575
2576 if( (!(lphc->wState & CBF_EUI) && wParam == VK_F4) ||
2577 ( (lphc->wState & CBF_EUI) && !(lphc->wState & CBF_DROPPED)
2578 && (wParam == VK_DOWN || wParam == VK_UP)) )
2579 {
2580 COMBO_FlipListbox( lphc, FALSE );
2581 return 0;
2582 }
2583 }
2584 return LISTBOX_HandleKeyDown( wnd, descr, wParam );
2585
2586 case WM_NCDESTROY:
2587 if( CB_GETTYPE(lphc) != CBS_SIMPLE )
2588 lphc->hWndLBox = 0;
2589 /* fall through */
2590
2591 default:
2592 return ListBoxWndProc( hwnd, msg, wParam, lParam );
2593 }
2594 }
2595 lRet = DefWindowProc32A( hwnd, msg, wParam, lParam );
2596
2597 TRACE(combo,"\t default on msg [%04x]\n", (UINT16)msg );
2598 }
2599
2600 return lRet;
2601 }
2602
Maarten's multimedia branch