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[reactos.git] / reactos / dll / win32 / comctl32 / header.c
1 /*
2 * Header control
3 *
4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Eric Kohl for CodeWeavers
6 * Copyright 2003 Maxime Bellenge
7 * Copyright 2006 Mikolaj Zalewski
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 *
23 * TODO:
24 * - Imagelist support (completed?)
25 * - Hottrack support (completed?)
26 * - Filters support (HDS_FILTER, HDI_FILTER, HDM_*FILTER*, HDN_*FILTER*)
27 * - New Windows Vista features
28 */
29
30 #include <stdarg.h>
31 #include <stdlib.h>
32 #include <string.h>
33
34 #include "windef.h"
35 #include "winbase.h"
36 #include "wine/unicode.h"
37 #include "wingdi.h"
38 #include "winuser.h"
39 #include "winnls.h"
40 #include "commctrl.h"
41 #include "comctl32.h"
42 #include "imagelist.h"
43 #include "tmschema.h"
44 #include "uxtheme.h"
45 #include "wine/debug.h"
46
47 WINE_DEFAULT_DEBUG_CHANNEL(header);
48
49 typedef struct
50 {
51 INT cxy;
52 HBITMAP hbm;
53 LPWSTR pszText;
54 INT fmt;
55 LPARAM lParam;
56 INT iImage;
57 INT iOrder; /* see documentation of HD_ITEM */
58
59 BOOL bDown; /* is item pressed? (used for drawing) */
60 RECT rect; /* bounding rectangle of the item */
61 DWORD callbackMask; /* HDI_* flags for items that are callback */
62 } HEADER_ITEM;
63
64
65 typedef struct
66 {
67 HWND hwndNotify; /* Owner window to send notifications to */
68 INT nNotifyFormat; /* format used for WM_NOTIFY messages */
69 UINT uNumItem; /* number of items (columns) */
70 INT nHeight; /* height of the header (pixels) */
71 HFONT hFont; /* handle to the current font */
72 HCURSOR hcurArrow; /* handle to the arrow cursor */
73 HCURSOR hcurDivider; /* handle to a cursor (used over dividers) <-|-> */
74 HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */
75 BOOL bCaptured; /* Is the mouse captured? */
76 BOOL bPressed; /* Is a header item pressed (down)? */
77 BOOL bDragging; /* Are we dragging an item? */
78 BOOL bTracking; /* Is in tracking mode? */
79 POINT ptLButtonDown; /* The point where the left button was pressed */
80 INT iMoveItem; /* index of tracked item. (Tracking mode) */
81 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
82 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
83 INT iHotItem; /* index of hot item (cursor is over this item) */
84 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
85 INT iMargin; /* width of the margin that surrounds a bitmap */
86
87 HIMAGELIST himl; /* handle to an image list (may be 0) */
88 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */
89 INT *order; /* array of item IDs indexed by order */
90 BOOL bRectsValid; /* validity flag for bounding rectangles */
91 } HEADER_INFO;
92
93
94 #define VERT_BORDER 4
95 #define DIVIDER_WIDTH 10
96 #define HOT_DIVIDER_WIDTH 2
97 #define MAX_HEADER_TEXT_LEN 260
98 #define HDN_UNICODE_OFFSET 20
99 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
100
101 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER)
102 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER)
103 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM))
104 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP)
105
106 #define HEADER_GetInfoPtr(hwnd) ((HEADER_INFO *)GetWindowLongPtrW(hwnd,0))
107
108 static BOOL HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask);
109 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem);
110 static LRESULT HEADER_SendNotify(HWND hwnd, UINT code, NMHDR *hdr);
111 static LRESULT HEADER_SendCtrlCustomDraw(HWND hwnd, DWORD dwDrawStage, HDC hdc, const RECT *rect);
112
113 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0};
114 static WCHAR emptyString[] = {0};
115
116 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, const HDITEMW *phdi, BOOL fUnicode)
117 {
118 if (mask & HDI_UNSUPPORTED_FIELDS)
119 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS));
120
121 if (mask & HDI_BITMAP)
122 lpItem->hbm = phdi->hbm;
123
124 if (mask & HDI_FORMAT)
125 lpItem->fmt = phdi->fmt;
126
127 if (mask & HDI_LPARAM)
128 lpItem->lParam = phdi->lParam;
129
130 if (mask & HDI_WIDTH)
131 lpItem->cxy = phdi->cxy;
132
133 if (mask & HDI_IMAGE)
134 {
135 lpItem->iImage = phdi->iImage;
136 if (phdi->iImage == I_IMAGECALLBACK)
137 lpItem->callbackMask |= HDI_IMAGE;
138 else
139 lpItem->callbackMask &= ~HDI_IMAGE;
140 }
141
142 if (mask & HDI_TEXT)
143 {
144 Free(lpItem->pszText);
145 lpItem->pszText = NULL;
146
147 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
148 {
149 LPWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString);
150 if (fUnicode)
151 Str_SetPtrW(&lpItem->pszText, pszText);
152 else
153 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)pszText);
154 lpItem->callbackMask &= ~HDI_TEXT;
155 }
156 else
157 {
158 lpItem->pszText = NULL;
159 lpItem->callbackMask |= HDI_TEXT;
160 }
161 }
162 }
163
164 static inline LRESULT
165 HEADER_IndexToOrder (HWND hwnd, INT iItem)
166 {
167 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
168 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
169 return lpItem->iOrder;
170 }
171
172
173 static INT
174 HEADER_OrderToIndex(HWND hwnd, WPARAM wParam)
175 {
176 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
177 INT iorder = (INT)wParam;
178
179 if ((iorder <0) || iorder >= infoPtr->uNumItem)
180 return iorder;
181 return infoPtr->order[iorder];
182 }
183
184 static void
185 HEADER_ChangeItemOrder(const HEADER_INFO *infoPtr, INT iItem, INT iNewOrder)
186 {
187 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
188 INT i, nMin, nMax;
189
190 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder);
191 if (lpItem->iOrder < iNewOrder)
192 {
193 memmove(&infoPtr->order[lpItem->iOrder],
194 &infoPtr->order[lpItem->iOrder + 1],
195 (iNewOrder - lpItem->iOrder) * sizeof(INT));
196 }
197 if (iNewOrder < lpItem->iOrder)
198 {
199 memmove(&infoPtr->order[iNewOrder + 1],
200 &infoPtr->order[iNewOrder],
201 (lpItem->iOrder - iNewOrder) * sizeof(INT));
202 }
203 infoPtr->order[iNewOrder] = iItem;
204 nMin = min(lpItem->iOrder, iNewOrder);
205 nMax = max(lpItem->iOrder, iNewOrder);
206 for (i = nMin; i <= nMax; i++)
207 infoPtr->items[infoPtr->order[i]].iOrder = i;
208 }
209
210 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
211 static INT
212 HEADER_NextItem(HWND hwnd, INT iItem)
213 {
214 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)+1);
215 }
216
217 static INT
218 HEADER_PrevItem(HWND hwnd, INT iItem)
219 {
220 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)-1);
221 }
222
223 static void
224 HEADER_SetItemBounds (HWND hwnd)
225 {
226 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
227 HEADER_ITEM *phdi;
228 RECT rect;
229 unsigned int i;
230 int x;
231
232 infoPtr->bRectsValid = TRUE;
233
234 if (infoPtr->uNumItem == 0)
235 return;
236
237 GetClientRect (hwnd, &rect);
238
239 x = rect.left;
240 for (i = 0; i < infoPtr->uNumItem; i++) {
241 phdi = &infoPtr->items[HEADER_OrderToIndex(hwnd,i)];
242 phdi->rect.top = rect.top;
243 phdi->rect.bottom = rect.bottom;
244 phdi->rect.left = x;
245 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0);
246 x = phdi->rect.right;
247 }
248 }
249
250 static LRESULT
251 HEADER_Size (HWND hwnd, WPARAM wParam)
252 {
253 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
254
255 infoPtr->bRectsValid = FALSE;
256
257 return 0;
258 }
259
260 static void HEADER_GetHotDividerRect(HWND hwnd, const HEADER_INFO *infoPtr, RECT *r)
261 {
262 INT iDivider = infoPtr->iHotDivider;
263 if (infoPtr->uNumItem > 0)
264 {
265 HEADER_ITEM *lpItem;
266
267 if (iDivider < infoPtr->uNumItem)
268 {
269 lpItem = &infoPtr->items[iDivider];
270 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
271 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
272 }
273 else
274 {
275 lpItem = &infoPtr->items[HEADER_OrderToIndex(hwnd, infoPtr->uNumItem-1)];
276 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
277 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
278 }
279 r->top = lpItem->rect.top;
280 r->bottom = lpItem->rect.bottom;
281 }
282 else
283 {
284 RECT clientRect;
285 GetClientRect(hwnd, &clientRect);
286 *r = clientRect;
287 r->right = r->left + HOT_DIVIDER_WIDTH/2;
288 }
289 }
290
291
292 static INT
293 HEADER_DrawItem (HWND hwnd, HDC hdc, INT iItem, BOOL bHotTrack, LRESULT lCDFlags)
294 {
295 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
296 HEADER_ITEM *phdi = &infoPtr->items[iItem];
297 RECT r;
298 INT oldBkMode;
299 HTHEME theme = GetWindowTheme (hwnd);
300 NMCUSTOMDRAW nmcd;
301
302 TRACE("DrawItem(iItem %d bHotTrack %d unicode flag %d)\n", iItem, bHotTrack, (infoPtr->nNotifyFormat == NFR_UNICODE));
303
304 r = phdi->rect;
305 if (r.right - r.left == 0)
306 return phdi->rect.right;
307
308 /* Set the colors before sending NM_CUSTOMDRAW so that it can change them */
309 SetTextColor(hdc, (bHotTrack && !theme) ? COLOR_HIGHLIGHT : COLOR_BTNTEXT);
310 SetBkColor(hdc, GetSysColor(COLOR_3DFACE));
311
312 if (lCDFlags & CDRF_NOTIFYITEMDRAW && !(phdi->fmt & HDF_OWNERDRAW))
313 {
314 LRESULT lCDItemFlags;
315
316 nmcd.dwDrawStage = CDDS_PREPAINT | CDDS_ITEM;
317 nmcd.hdc = hdc;
318 nmcd.dwItemSpec = iItem;
319 nmcd.rc = r;
320 nmcd.uItemState = phdi->bDown ? CDIS_SELECTED : 0;
321 nmcd.lItemlParam = phdi->lParam;
322
323 lCDItemFlags = HEADER_SendNotify(hwnd, NM_CUSTOMDRAW, (NMHDR *)&nmcd);
324 if (lCDItemFlags & CDRF_SKIPDEFAULT)
325 return phdi->rect.right;
326 }
327
328 if (theme != NULL) {
329 int state = (phdi->bDown) ? HIS_PRESSED :
330 (bHotTrack ? HIS_HOT : HIS_NORMAL);
331 DrawThemeBackground (theme, hdc, HP_HEADERITEM, state,
332 &r, NULL);
333 GetThemeBackgroundContentRect (theme, hdc, HP_HEADERITEM, state,
334 &r, &r);
335 }
336 else {
337 HBRUSH hbr;
338
339 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) {
340 if (phdi->bDown) {
341 DrawEdge (hdc, &r, BDR_RAISEDOUTER,
342 BF_RECT | BF_FLAT | BF_MIDDLE | BF_ADJUST);
343 }
344 else
345 DrawEdge (hdc, &r, EDGE_RAISED,
346 BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST);
347 }
348 else
349 DrawEdge (hdc, &r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST);
350
351 hbr = CreateSolidBrush(GetBkColor(hdc));
352 FillRect(hdc, &r, hbr);
353 DeleteObject(hbr);
354 }
355 if (phdi->bDown) {
356 r.left += 2;
357 r.top += 2;
358 }
359
360 if (phdi->fmt & HDF_OWNERDRAW) {
361 DRAWITEMSTRUCT dis;
362
363 dis.CtlType = ODT_HEADER;
364 dis.CtlID = GetWindowLongPtrW (hwnd, GWLP_ID);
365 dis.itemID = iItem;
366 dis.itemAction = ODA_DRAWENTIRE;
367 dis.itemState = phdi->bDown ? ODS_SELECTED : 0;
368 dis.hwndItem = hwnd;
369 dis.hDC = hdc;
370 dis.rcItem = phdi->rect;
371 dis.itemData = phdi->lParam;
372 oldBkMode = SetBkMode(hdc, TRANSPARENT);
373 SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM,
374 (WPARAM)dis.CtlID, (LPARAM)&dis);
375 if (oldBkMode != TRANSPARENT)
376 SetBkMode(hdc, oldBkMode);
377 }
378 else {
379 UINT rw, rh, /* width and height of r */
380 *x = NULL, *w = NULL; /* x and width of the pic (bmp or img) which is part of cnt */
381 /* cnt,txt,img,bmp */
382 UINT cx, tx, ix, bx,
383 cw, tw, iw, bw;
384 BITMAP bmp;
385
386 HEADER_PrepareCallbackItems(hwnd, iItem, HDI_TEXT|HDI_IMAGE);
387 cw = tw = iw = bw = 0;
388 rw = r.right - r.left;
389 rh = r.bottom - r.top;
390
391 if (phdi->fmt & HDF_STRING) {
392 RECT textRect;
393
394 SetRectEmpty(&textRect);
395 DrawTextW (hdc, phdi->pszText, -1,
396 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT);
397 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin;
398 }
399
400 if ((phdi->fmt & HDF_IMAGE) && (infoPtr->himl)) {
401 iw = infoPtr->himl->cx + 2 * infoPtr->iMargin;
402 x = &ix;
403 w = &iw;
404 }
405
406 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) {
407 GetObjectW (phdi->hbm, sizeof(BITMAP), (LPVOID)&bmp);
408 bw = bmp.bmWidth + 2 * infoPtr->iMargin;
409 if (!iw) {
410 x = &bx;
411 w = &bw;
412 }
413 }
414
415 if (bw || iw)
416 cw += *w;
417
418 /* align cx using the unclipped cw */
419 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT)
420 cx = r.left;
421 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER)
422 cx = r.left + rw / 2 - cw / 2;
423 else /* HDF_RIGHT */
424 cx = r.right - cw;
425
426 /* clip cx & cw */
427 if (cx < r.left)
428 cx = r.left;
429 if (cx + cw > r.right)
430 cw = r.right - cx;
431
432 tx = cx + infoPtr->iMargin;
433 /* since cw might have changed we have to recalculate tw */
434 tw = cw - infoPtr->iMargin * 2;
435
436 if (iw || bw) {
437 tw -= *w;
438 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) {
439 /* put pic behind text */
440 *x = cx + tw + infoPtr->iMargin * 3;
441 } else {
442 *x = cx + infoPtr->iMargin;
443 /* move text behind pic */
444 tx += *w;
445 }
446 }
447
448 if (iw && bw) {
449 /* since we're done with the layout we can
450 now calculate the position of bmp which
451 has no influence on alignment and layout
452 because of img */
453 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT)
454 bx = cx - bw + infoPtr->iMargin;
455 else
456 bx = cx + cw + infoPtr->iMargin;
457 }
458
459 if (iw || bw) {
460 HDC hClipDC = GetDC(hwnd);
461 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
462 SelectClipRgn(hClipDC, hClipRgn);
463
464 if (bw) {
465 HDC hdcBitmap = CreateCompatibleDC (hClipDC);
466 SelectObject (hdcBitmap, phdi->hbm);
467 BitBlt (hClipDC, bx, r.top + ((INT)rh - bmp.bmHeight) / 2,
468 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
469 DeleteDC (hdcBitmap);
470 }
471
472 if (iw) {
473 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC,
474 ix, r.top + ((INT)rh - infoPtr->himl->cy) / 2,
475 infoPtr->himl->cx, infoPtr->himl->cy, CLR_DEFAULT, CLR_DEFAULT, 0);
476 }
477
478 DeleteObject(hClipRgn);
479 ReleaseDC(hwnd, hClipDC);
480 }
481
482 if (((phdi->fmt & HDF_STRING)
483 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP|
484 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */
485 && (phdi->pszText)) {
486 oldBkMode = SetBkMode(hdc, TRANSPARENT);
487 r.left = tx;
488 r.right = tx + tw;
489 DrawTextW (hdc, phdi->pszText, -1,
490 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE);
491 if (oldBkMode != TRANSPARENT)
492 SetBkMode(hdc, oldBkMode);
493 }
494 HEADER_FreeCallbackItems(phdi);
495 }/*Ownerdrawn*/
496
497 return phdi->rect.right;
498 }
499
500 static void
501 HEADER_DrawHotDivider(HWND hwnd, HDC hdc)
502 {
503 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
504 HBRUSH brush;
505 RECT r;
506
507 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
508 brush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
509 FillRect(hdc, &r, brush);
510 DeleteObject(brush);
511 }
512
513 static void
514 HEADER_Refresh (HWND hwnd, HDC hdc)
515 {
516 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
517 HFONT hFont, hOldFont;
518 RECT rect, rcRest;
519 HBRUSH hbrBk;
520 UINT i;
521 INT x;
522 LRESULT lCDFlags;
523 HTHEME theme = GetWindowTheme (hwnd);
524
525 if (!infoPtr->bRectsValid)
526 HEADER_SetItemBounds(hwnd);
527
528 /* get rect for the bar, adjusted for the border */
529 GetClientRect (hwnd, &rect);
530 lCDFlags = HEADER_SendCtrlCustomDraw(hwnd, CDDS_PREPAINT, hdc, &rect);
531
532 if (infoPtr->bDragging)
533 ImageList_DragShowNolock(FALSE);
534
535 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
536 hOldFont = SelectObject (hdc, hFont);
537
538 /* draw Background */
539 if (infoPtr->uNumItem == 0 && theme == NULL) {
540 hbrBk = GetSysColorBrush(COLOR_3DFACE);
541 FillRect(hdc, &rect, hbrBk);
542 }
543
544 x = rect.left;
545 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) {
546 int idx = HEADER_OrderToIndex(hwnd,i);
547 if (RectVisible(hdc, &infoPtr->items[idx].rect))
548 HEADER_DrawItem(hwnd, hdc, idx, infoPtr->iHotItem == idx, lCDFlags);
549 x = infoPtr->items[idx].rect.right;
550 }
551
552 rcRest = rect;
553 rcRest.left = x;
554 if ((x <= rect.right) && RectVisible(hdc, &rcRest) && (infoPtr->uNumItem > 0)) {
555 if (theme != NULL) {
556 DrawThemeBackground(theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rcRest, NULL);
557 }
558 else {
559 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS)
560 DrawEdge (hdc, &rcRest, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE);
561 else
562 DrawEdge (hdc, &rcRest, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
563 }
564 }
565
566 if (infoPtr->iHotDivider != -1)
567 HEADER_DrawHotDivider(hwnd, hdc);
568
569 if (infoPtr->bDragging)
570 ImageList_DragShowNolock(TRUE);
571 SelectObject (hdc, hOldFont);
572
573 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
574 HEADER_SendCtrlCustomDraw(hwnd, CDDS_POSTPAINT, hdc, &rect);
575 }
576
577
578 static void
579 HEADER_RefreshItem (HWND hwnd, HDC hdc, INT iItem)
580 {
581 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
582
583 if (!infoPtr->bRectsValid)
584 HEADER_SetItemBounds(hwnd);
585
586 InvalidateRect(hwnd, &infoPtr->items[iItem].rect, FALSE);
587 }
588
589
590 static void
591 HEADER_InternalHitTest (HWND hwnd, const POINT *lpPt, UINT *pFlags, INT *pItem)
592 {
593 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
594 RECT rect, rcTest;
595 UINT iCount;
596 INT width;
597 BOOL bNoWidth;
598
599 GetClientRect (hwnd, &rect);
600
601 *pFlags = 0;
602 bNoWidth = FALSE;
603 if (PtInRect (&rect, *lpPt))
604 {
605 if (infoPtr->uNumItem == 0) {
606 *pFlags |= HHT_NOWHERE;
607 *pItem = 1;
608 TRACE("NOWHERE\n");
609 return;
610 }
611 else {
612 /* somewhere inside */
613 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) {
614 rect = infoPtr->items[iCount].rect;
615 width = rect.right - rect.left;
616 if (width == 0) {
617 bNoWidth = TRUE;
618 continue;
619 }
620 if (PtInRect (&rect, *lpPt)) {
621 if (width <= 2 * DIVIDER_WIDTH) {
622 *pFlags |= HHT_ONHEADER;
623 *pItem = iCount;
624 TRACE("ON HEADER %d\n", iCount);
625 return;
626 }
627 if (HEADER_IndexToOrder(hwnd, iCount) > 0) {
628 rcTest = rect;
629 rcTest.right = rcTest.left + DIVIDER_WIDTH;
630 if (PtInRect (&rcTest, *lpPt)) {
631 if (bNoWidth) {
632 *pFlags |= HHT_ONDIVOPEN;
633 *pItem = HEADER_PrevItem(hwnd, iCount);
634 TRACE("ON DIVOPEN %d\n", *pItem);
635 return;
636 }
637 else {
638 *pFlags |= HHT_ONDIVIDER;
639 *pItem = HEADER_PrevItem(hwnd, iCount);
640 TRACE("ON DIVIDER %d\n", *pItem);
641 return;
642 }
643 }
644 }
645 rcTest = rect;
646 rcTest.left = rcTest.right - DIVIDER_WIDTH;
647 if (PtInRect (&rcTest, *lpPt)) {
648 *pFlags |= HHT_ONDIVIDER;
649 *pItem = iCount;
650 TRACE("ON DIVIDER %d\n", *pItem);
651 return;
652 }
653
654 *pFlags |= HHT_ONHEADER;
655 *pItem = iCount;
656 TRACE("ON HEADER %d\n", iCount);
657 return;
658 }
659 }
660
661 /* check for last divider part (on nowhere) */
662 rect = infoPtr->items[infoPtr->uNumItem-1].rect;
663 rect.left = rect.right;
664 rect.right += DIVIDER_WIDTH;
665 if (PtInRect (&rect, *lpPt)) {
666 if (bNoWidth) {
667 *pFlags |= HHT_ONDIVOPEN;
668 *pItem = infoPtr->uNumItem - 1;
669 TRACE("ON DIVOPEN %d\n", *pItem);
670 return;
671 }
672 else {
673 *pFlags |= HHT_ONDIVIDER;
674 *pItem = infoPtr->uNumItem-1;
675 TRACE("ON DIVIDER %d\n", *pItem);
676 return;
677 }
678 }
679
680 *pFlags |= HHT_NOWHERE;
681 *pItem = 1;
682 TRACE("NOWHERE\n");
683 return;
684 }
685 }
686 else {
687 if (lpPt->x < rect.left) {
688 TRACE("TO LEFT\n");
689 *pFlags |= HHT_TOLEFT;
690 }
691 else if (lpPt->x > rect.right) {
692 TRACE("TO RIGHT\n");
693 *pFlags |= HHT_TORIGHT;
694 }
695
696 if (lpPt->y < rect.top) {
697 TRACE("ABOVE\n");
698 *pFlags |= HHT_ABOVE;
699 }
700 else if (lpPt->y > rect.bottom) {
701 TRACE("BELOW\n");
702 *pFlags |= HHT_BELOW;
703 }
704 }
705
706 *pItem = 1;
707 TRACE("flags=0x%X\n", *pFlags);
708 return;
709 }
710
711
712 static void
713 HEADER_DrawTrackLine (HWND hwnd, HDC hdc, INT x)
714 {
715 RECT rect;
716 HPEN hOldPen;
717 INT oldRop;
718
719 GetClientRect (hwnd, &rect);
720
721 hOldPen = SelectObject (hdc, GetStockObject (BLACK_PEN));
722 oldRop = SetROP2 (hdc, R2_XORPEN);
723 MoveToEx (hdc, x, rect.top, NULL);
724 LineTo (hdc, x, rect.bottom);
725 SetROP2 (hdc, oldRop);
726 SelectObject (hdc, hOldPen);
727 }
728
729 /***
730 * DESCRIPTION:
731 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify
732 *
733 * PARAMETER(S):
734 * [I] infoPtr : the header that wants to send the notify
735 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW
736 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW
737 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA
738 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after
739 * the HDITEM is no longer in use or NULL if none was needed
740 *
741 * NOTE: We depend on HDITEMA and HDITEMW having the same structure
742 */
743 static void HEADER_CopyHDItemForNotify(const HEADER_INFO *infoPtr, HDITEMW *dest,
744 const HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch)
745 {
746 *ppvScratch = NULL;
747 *dest = *src;
748
749 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */
750 {
751 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE)
752 {
753 dest->pszText = NULL;
754 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText);
755 *ppvScratch = dest->pszText;
756 }
757
758 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE)
759 {
760 dest->pszText = NULL;
761 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText);
762 *ppvScratch = dest->pszText;
763 }
764 }
765 }
766
767 static UINT HEADER_NotifyCodeWtoA(UINT code)
768 {
769 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/
770 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE)
771 return code + HDN_UNICODE_OFFSET;
772 else
773 return code;
774 }
775
776 static LRESULT
777 HEADER_SendNotify(HWND hwnd, UINT code, NMHDR *nmhdr)
778 {
779 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
780
781 nmhdr->hwndFrom = hwnd;
782 nmhdr->idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
783 nmhdr->code = code;
784
785 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
786 (WPARAM)nmhdr->idFrom, (LPARAM)nmhdr);
787 }
788
789 static BOOL
790 HEADER_SendSimpleNotify (HWND hwnd, UINT code)
791 {
792 NMHDR nmhdr;
793 return (BOOL)HEADER_SendNotify(hwnd, code, &nmhdr);
794 }
795
796 static LRESULT
797 HEADER_SendCtrlCustomDraw(HWND hwnd, DWORD dwDrawStage, HDC hdc, const RECT *rect)
798 {
799 NMCUSTOMDRAW nm;
800 nm.dwDrawStage = dwDrawStage;
801 nm.hdc = hdc;
802 nm.rc = *rect;
803 nm.dwItemSpec = 0;
804 nm.uItemState = 0;
805 nm.lItemlParam = 0;
806
807 return HEADER_SendNotify(hwnd, NM_CUSTOMDRAW, (NMHDR *)&nm);
808 }
809
810 static BOOL
811 HEADER_SendNotifyWithHDItemT(HWND hwnd, UINT code, INT iItem, HDITEMW *lpItem)
812 {
813 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
814 NMHEADERW nmhdr;
815
816 if (infoPtr->nNotifyFormat != NFR_UNICODE)
817 code = HEADER_NotifyCodeWtoA(code);
818 nmhdr.iItem = iItem;
819 nmhdr.iButton = 0;
820 nmhdr.pitem = lpItem;
821
822 return (BOOL)HEADER_SendNotify(hwnd, code, (NMHDR *)&nmhdr);
823 }
824
825 static BOOL
826 HEADER_SendNotifyWithIntFieldT(HWND hwnd, UINT code, INT iItem, INT mask, INT iValue)
827 {
828 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
829 HDITEMW nmitem;
830
831 /* copying only the iValue should be ok but to make the code more robust we copy everything */
832 nmitem.cxy = infoPtr->items[iItem].cxy;
833 nmitem.hbm = infoPtr->items[iItem].hbm;
834 nmitem.pszText = NULL;
835 nmitem.cchTextMax = 0;
836 nmitem.fmt = infoPtr->items[iItem].fmt;
837 nmitem.lParam = infoPtr->items[iItem].lParam;
838 nmitem.iOrder = infoPtr->items[iItem].iOrder;
839 nmitem.iImage = infoPtr->items[iItem].iImage;
840
841 nmitem.mask = mask;
842 switch (mask)
843 {
844 case HDI_WIDTH:
845 nmitem.cxy = iValue;
846 break;
847 case HDI_ORDER:
848 nmitem.iOrder = iValue;
849 break;
850 default:
851 ERR("invalid mask value 0x%x\n", iValue);
852 }
853
854 return HEADER_SendNotifyWithHDItemT(hwnd, code, iItem, &nmitem);
855 }
856
857 /**
858 * Prepare callback items
859 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA
860 * (so we handle the two cases only doing a specific cast for pszText).
861 * Checks if any of the required field are callback. If there are sends a
862 * NMHDISPINFO notify to retrieve these items. The items are stored in the
863 * HEADER_ITEM pszText and iImage fields. They should be freed with
864 * HEADER_FreeCallbackItems.
865 *
866 * @param hwnd : hwnd header container handler
867 * @param iItem : the header item id
868 * @param reqMask : required fields. If any of them is callback this function will fetch it
869 *
870 * @return TRUE on success, else FALSE
871 */
872 static BOOL
873 HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask)
874 {
875 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
876 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
877 DWORD mask = reqMask & lpItem->callbackMask;
878 NMHDDISPINFOW dispInfo;
879 void *pvBuffer = NULL;
880
881 if (mask == 0)
882 return TRUE;
883 if (mask&HDI_TEXT && lpItem->pszText != NULL)
884 {
885 ERR("(): function called without a call to FreeCallbackItems\n");
886 Free(lpItem->pszText);
887 lpItem->pszText = NULL;
888 }
889
890 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW));
891 dispInfo.hdr.hwndFrom = hwnd;
892 dispInfo.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
893 if (infoPtr->nNotifyFormat == NFR_UNICODE)
894 {
895 dispInfo.hdr.code = HDN_GETDISPINFOW;
896 if (mask & HDI_TEXT)
897 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(WCHAR));
898 }
899 else
900 {
901 dispInfo.hdr.code = HDN_GETDISPINFOA;
902 if (mask & HDI_TEXT)
903 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(CHAR));
904 }
905 dispInfo.pszText = (LPWSTR)pvBuffer;
906 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0);
907 dispInfo.iItem = iItem;
908 dispInfo.mask = mask;
909 dispInfo.lParam = lpItem->lParam;
910
911 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A');
912 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
913 (WPARAM) dispInfo.hdr.idFrom,
914 (LPARAM) &dispInfo);
915
916 TRACE("SendMessage returns(mask:0x%x,str:%s,lParam:%p)\n",
917 dispInfo.mask,
918 (infoPtr->nNotifyFormat == NFR_UNICODE ? debugstr_w(dispInfo.pszText) : (LPSTR) dispInfo.pszText),
919 (void*) dispInfo.lParam);
920
921 if (mask & HDI_IMAGE)
922 lpItem->iImage = dispInfo.iImage;
923 if (mask & HDI_TEXT)
924 {
925 if (infoPtr->nNotifyFormat == NFR_UNICODE)
926 {
927 lpItem->pszText = (LPWSTR)pvBuffer;
928
929 /* the user might have used his own buffer */
930 if (dispInfo.pszText != lpItem->pszText)
931 Str_GetPtrW(dispInfo.pszText, lpItem->pszText, MAX_HEADER_TEXT_LEN);
932 }
933 else
934 {
935 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)dispInfo.pszText);
936 Free(pvBuffer);
937 }
938 }
939
940 if (dispInfo.mask & HDI_DI_SETITEM)
941 {
942 /* make the items permanent */
943 lpItem->callbackMask &= ~dispInfo.mask;
944 }
945
946 return TRUE;
947 }
948
949 /***
950 * DESCRIPTION:
951 * Free the items that might be allocated with HEADER_PrepareCallbackItems
952 *
953 * PARAMETER(S):
954 * [I] lpItem : the item to free the data
955 *
956 */
957 static void
958 HEADER_FreeCallbackItems(HEADER_ITEM *lpItem)
959 {
960 if (lpItem->callbackMask&HDI_TEXT)
961 {
962 Free(lpItem->pszText);
963 lpItem->pszText = NULL;
964 }
965
966 if (lpItem->callbackMask&HDI_IMAGE)
967 lpItem->iImage = I_IMAGECALLBACK;
968 }
969
970 static LRESULT
971 HEADER_CreateDragImage (HWND hwnd, WPARAM wParam)
972 {
973 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
974 HEADER_ITEM *lpItem;
975 HIMAGELIST himl;
976 HBITMAP hMemory, hOldBitmap;
977 LRESULT lCDFlags;
978 RECT rc;
979 HDC hMemoryDC;
980 HDC hDeviceDC;
981 int height, width;
982 HFONT hFont;
983
984 if (wParam < 0 || wParam >= infoPtr->uNumItem)
985 return FALSE;
986
987 if (!infoPtr->bRectsValid)
988 HEADER_SetItemBounds(hwnd);
989
990 lpItem = &infoPtr->items[wParam];
991 width = lpItem->rect.right - lpItem->rect.left;
992 height = lpItem->rect.bottom - lpItem->rect.top;
993
994 hDeviceDC = GetDC(NULL);
995 hMemoryDC = CreateCompatibleDC(hDeviceDC);
996 hMemory = CreateCompatibleBitmap(hDeviceDC, width, height);
997 ReleaseDC(NULL, hDeviceDC);
998 hOldBitmap = SelectObject(hMemoryDC, hMemory);
999 SetViewportOrgEx(hMemoryDC, -lpItem->rect.left, -lpItem->rect.top, NULL);
1000 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject(SYSTEM_FONT);
1001 SelectObject(hMemoryDC, hFont);
1002
1003 GetClientRect(hwnd, &rc);
1004 lCDFlags = HEADER_SendCtrlCustomDraw(hwnd, CDDS_PREPAINT, hMemoryDC, &rc);
1005 HEADER_DrawItem(hwnd, hMemoryDC, wParam, FALSE, lCDFlags);
1006 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
1007 HEADER_SendCtrlCustomDraw(hwnd, CDDS_POSTPAINT, hMemoryDC, &rc);
1008
1009 hMemory = SelectObject(hMemoryDC, hOldBitmap);
1010 DeleteDC(hMemoryDC);
1011
1012 if (hMemory == NULL) /* if anything failed */
1013 return FALSE;
1014
1015 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1);
1016 ImageList_Add(himl, hMemory, NULL);
1017 DeleteObject(hMemory);
1018 return (LRESULT)himl;
1019 }
1020
1021 static LRESULT
1022 HEADER_SetHotDivider(HWND hwnd, WPARAM wParam, LPARAM lParam)
1023 {
1024 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1025 INT iDivider;
1026 RECT r;
1027
1028 if (wParam)
1029 {
1030 POINT pt;
1031 UINT flags;
1032 pt.x = (INT)(SHORT)LOWORD(lParam);
1033 pt.y = 0;
1034 HEADER_InternalHitTest (hwnd, &pt, &flags, &iDivider);
1035
1036 if (flags & HHT_TOLEFT)
1037 iDivider = 0;
1038 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
1039 iDivider = infoPtr->uNumItem;
1040 else
1041 {
1042 HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
1043 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
1044 iDivider = HEADER_NextItem(hwnd, iDivider);
1045 }
1046 }
1047 else
1048 iDivider = (INT)lParam;
1049
1050 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
1051 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
1052 return iDivider;
1053
1054 if (iDivider != infoPtr->iHotDivider)
1055 {
1056 if (infoPtr->iHotDivider != -1)
1057 {
1058 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1059 InvalidateRect(hwnd, &r, FALSE);
1060 }
1061 infoPtr->iHotDivider = iDivider;
1062 if (iDivider != -1)
1063 {
1064 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1065 InvalidateRect(hwnd, &r, FALSE);
1066 }
1067 }
1068 return iDivider;
1069 }
1070
1071 static LRESULT
1072 HEADER_DeleteItem (HWND hwnd, WPARAM wParam)
1073 {
1074 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1075 INT iItem = (INT)wParam;
1076 INT iOrder;
1077 INT i;
1078
1079 TRACE("[iItem=%d]\n", iItem);
1080
1081 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1082 return FALSE;
1083
1084 for (i = 0; i < infoPtr->uNumItem; i++)
1085 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1086
1087 iOrder = infoPtr->items[iItem].iOrder;
1088 Free(infoPtr->items[iItem].pszText);
1089
1090 infoPtr->uNumItem--;
1091 memmove(&infoPtr->items[iItem], &infoPtr->items[iItem + 1],
1092 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM));
1093 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1],
1094 (infoPtr->uNumItem - iOrder) * sizeof(INT));
1095 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1096 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1097
1098 /* Correct the orders */
1099 for (i = 0; i < infoPtr->uNumItem; i++)
1100 {
1101 if (infoPtr->order[i] > iItem)
1102 infoPtr->order[i]--;
1103 if (i >= iOrder)
1104 infoPtr->items[infoPtr->order[i]].iOrder = i;
1105 }
1106 for (i = 0; i < infoPtr->uNumItem; i++)
1107 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1108
1109 HEADER_SetItemBounds (hwnd);
1110 InvalidateRect(hwnd, NULL, FALSE);
1111
1112 return TRUE;
1113 }
1114
1115
1116 static LRESULT
1117 HEADER_GetImageList (HWND hwnd)
1118 {
1119 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1120
1121 return (LRESULT)infoPtr->himl;
1122 }
1123
1124
1125 static LRESULT
1126 HEADER_GetItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1127 {
1128 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1129 HEADER_ITEM *lpItem;
1130 UINT mask;
1131
1132 if (!phdi)
1133 return FALSE;
1134
1135 TRACE("[nItem=%d]\n", nItem);
1136
1137 mask = phdi->mask;
1138 if (mask == 0)
1139 return TRUE;
1140
1141 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1142 return FALSE;
1143
1144 if (mask & HDI_UNKNOWN_FIELDS)
1145 {
1146 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask);
1147 mask &= HDI_COMCTL32_4_0_FIELDS;
1148 }
1149
1150 lpItem = &infoPtr->items[nItem];
1151 HEADER_PrepareCallbackItems(hwnd, nItem, mask);
1152
1153 if (mask & HDI_BITMAP)
1154 phdi->hbm = lpItem->hbm;
1155
1156 if (mask & HDI_FORMAT)
1157 phdi->fmt = lpItem->fmt;
1158
1159 if (mask & HDI_WIDTH)
1160 phdi->cxy = lpItem->cxy;
1161
1162 if (mask & HDI_LPARAM)
1163 phdi->lParam = lpItem->lParam;
1164
1165 if (mask & HDI_IMAGE)
1166 phdi->iImage = lpItem->iImage;
1167
1168 if (mask & HDI_ORDER)
1169 phdi->iOrder = lpItem->iOrder;
1170
1171 if (mask & HDI_TEXT)
1172 {
1173 if (bUnicode)
1174 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax);
1175 else
1176 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax);
1177 }
1178
1179 HEADER_FreeCallbackItems(lpItem);
1180 return TRUE;
1181 }
1182
1183
1184 static inline LRESULT
1185 HEADER_GetItemCount (HWND hwnd)
1186 {
1187 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1188 return infoPtr->uNumItem;
1189 }
1190
1191
1192 static LRESULT
1193 HEADER_GetItemRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
1194 {
1195 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1196 INT iItem = (INT)wParam;
1197 LPRECT lpRect = (LPRECT)lParam;
1198
1199 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1200 return FALSE;
1201
1202 lpRect->left = infoPtr->items[iItem].rect.left;
1203 lpRect->right = infoPtr->items[iItem].rect.right;
1204 lpRect->top = infoPtr->items[iItem].rect.top;
1205 lpRect->bottom = infoPtr->items[iItem].rect.bottom;
1206
1207 return TRUE;
1208 }
1209
1210
1211 static LRESULT
1212 HEADER_GetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1213 {
1214 LPINT order = (LPINT) lParam;
1215 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1216
1217 if ((unsigned int)wParam <infoPtr->uNumItem)
1218 return FALSE;
1219
1220 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT));
1221 return TRUE;
1222 }
1223
1224 static LRESULT
1225 HEADER_SetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1226 {
1227 int i;
1228 LPINT order = (LPINT) lParam;
1229 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1230 HEADER_ITEM *lpItem;
1231
1232 if ((unsigned int)wParam <infoPtr->uNumItem)
1233 return FALSE;
1234 memcpy(infoPtr->order, order, infoPtr->uNumItem * sizeof(INT));
1235 for (i=0; i<(int)wParam; i++)
1236 {
1237 lpItem = &infoPtr->items[*order++];
1238 lpItem->iOrder=i;
1239 }
1240 infoPtr->bRectsValid=0;
1241 InvalidateRect(hwnd, NULL, FALSE);
1242 return TRUE;
1243 }
1244
1245 static inline LRESULT
1246 HEADER_GetUnicodeFormat (HWND hwnd)
1247 {
1248 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1249 return (infoPtr->nNotifyFormat == NFR_UNICODE);
1250 }
1251
1252
1253 static LRESULT
1254 HEADER_HitTest (HWND hwnd, WPARAM wParam, LPARAM lParam)
1255 {
1256 LPHDHITTESTINFO phti = (LPHDHITTESTINFO)lParam;
1257
1258 HEADER_InternalHitTest (hwnd, &phti->pt, &phti->flags, &phti->iItem);
1259
1260 if (phti->flags == HHT_NOWHERE)
1261 return -1;
1262 else
1263 return phti->iItem;
1264 }
1265
1266
1267 static LRESULT
1268 HEADER_InsertItemT (HWND hwnd, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1269 {
1270 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1271 HEADER_ITEM *lpItem;
1272 INT iOrder;
1273 UINT i;
1274 UINT copyMask;
1275
1276 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0))
1277 return -1;
1278
1279 if (nItem > infoPtr->uNumItem)
1280 nItem = infoPtr->uNumItem;
1281
1282 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem;
1283 if (iOrder < 0)
1284 iOrder = 0;
1285 else if (infoPtr->uNumItem < iOrder)
1286 iOrder = infoPtr->uNumItem;
1287
1288 infoPtr->uNumItem++;
1289 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1290 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1291
1292 /* make space for the new item */
1293 memmove(&infoPtr->items[nItem + 1], &infoPtr->items[nItem],
1294 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM));
1295 memmove(&infoPtr->order[iOrder + 1], &infoPtr->order[iOrder],
1296 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT));
1297
1298 /* update the order array */
1299 infoPtr->order[iOrder] = nItem;
1300 for (i = 0; i < infoPtr->uNumItem; i++)
1301 {
1302 if (i != iOrder && infoPtr->order[i] >= nItem)
1303 infoPtr->order[i]++;
1304 infoPtr->items[infoPtr->order[i]].iOrder = i;
1305 }
1306
1307 lpItem = &infoPtr->items[nItem];
1308 ZeroMemory(lpItem, sizeof(HEADER_ITEM));
1309 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */
1310 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM;
1311 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode);
1312 lpItem->iOrder = iOrder;
1313
1314 /* set automatically some format bits */
1315 if (phdi->mask & HDI_TEXT)
1316 lpItem->fmt |= HDF_STRING;
1317 else
1318 lpItem->fmt &= ~HDF_STRING;
1319
1320 if (lpItem->hbm != NULL)
1321 lpItem->fmt |= HDF_BITMAP;
1322 else
1323 lpItem->fmt &= ~HDF_BITMAP;
1324
1325 if (phdi->mask & HDI_IMAGE)
1326 lpItem->fmt |= HDF_IMAGE;
1327
1328 HEADER_SetItemBounds (hwnd);
1329 InvalidateRect(hwnd, NULL, FALSE);
1330
1331 return nItem;
1332 }
1333
1334
1335 static LRESULT
1336 HEADER_Layout (HWND hwnd, WPARAM wParam, LPARAM lParam)
1337 {
1338 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1339 LPHDLAYOUT lpLayout = (LPHDLAYOUT)lParam;
1340
1341 lpLayout->pwpos->hwnd = hwnd;
1342 lpLayout->pwpos->hwndInsertAfter = 0;
1343 lpLayout->pwpos->x = lpLayout->prc->left;
1344 lpLayout->pwpos->y = lpLayout->prc->top;
1345 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left;
1346 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_HIDDEN)
1347 lpLayout->pwpos->cy = 0;
1348 else {
1349 lpLayout->pwpos->cy = infoPtr->nHeight;
1350 lpLayout->prc->top += infoPtr->nHeight;
1351 }
1352 lpLayout->pwpos->flags = SWP_NOZORDER;
1353
1354 TRACE("Layout x=%d y=%d cx=%d cy=%d\n",
1355 lpLayout->pwpos->x, lpLayout->pwpos->y,
1356 lpLayout->pwpos->cx, lpLayout->pwpos->cy);
1357
1358 infoPtr->bRectsValid = FALSE;
1359
1360 return TRUE;
1361 }
1362
1363
1364 static LRESULT
1365 HEADER_SetImageList (HWND hwnd, HIMAGELIST himl)
1366 {
1367 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1368 HIMAGELIST himlOld;
1369
1370 TRACE("(himl %p)\n", himl);
1371 himlOld = infoPtr->himl;
1372 infoPtr->himl = himl;
1373
1374 /* FIXME: Refresh needed??? */
1375
1376 return (LRESULT)himlOld;
1377 }
1378
1379
1380 static LRESULT
1381 HEADER_GetBitmapMargin(HWND hwnd)
1382 {
1383 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1384
1385 return infoPtr->iMargin;
1386 }
1387
1388 static LRESULT
1389 HEADER_SetBitmapMargin(HWND hwnd, WPARAM wParam)
1390 {
1391 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1392 INT oldMargin = infoPtr->iMargin;
1393
1394 infoPtr->iMargin = (INT)wParam;
1395
1396 return oldMargin;
1397 }
1398
1399 static LRESULT
1400 HEADER_SetItemT (HWND hwnd, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1401 {
1402 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1403 HEADER_ITEM *lpItem;
1404 HDITEMW hdNotify;
1405 void *pvScratch;
1406
1407 if (phdi == NULL)
1408 return FALSE;
1409 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1410 return FALSE;
1411
1412 TRACE("[nItem=%d]\n", nItem);
1413
1414 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch);
1415 if (HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCHANGINGW, nItem, &hdNotify))
1416 {
1417 Free(pvScratch);
1418 return FALSE;
1419 }
1420
1421 lpItem = &infoPtr->items[nItem];
1422 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode);
1423
1424 if (phdi->mask & HDI_ORDER)
1425 if (phdi->iOrder >= 0 && phdi->iOrder < infoPtr->uNumItem)
1426 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder);
1427
1428 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCHANGEDW, nItem, &hdNotify);
1429
1430 HEADER_SetItemBounds (hwnd);
1431
1432 InvalidateRect(hwnd, NULL, FALSE);
1433
1434 Free(pvScratch);
1435 return TRUE;
1436 }
1437
1438 static inline LRESULT
1439 HEADER_SetUnicodeFormat (HWND hwnd, WPARAM wParam)
1440 {
1441 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1442 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE);
1443
1444 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI);
1445
1446 return bTemp;
1447 }
1448
1449
1450 static LRESULT
1451 HEADER_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
1452 {
1453 HEADER_INFO *infoPtr;
1454 TEXTMETRICW tm;
1455 HFONT hOldFont;
1456 HDC hdc;
1457
1458 infoPtr = (HEADER_INFO *)Alloc (sizeof(HEADER_INFO));
1459 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1460
1461 infoPtr->hwndNotify = ((LPCREATESTRUCTA)lParam)->hwndParent;
1462 infoPtr->uNumItem = 0;
1463 infoPtr->hFont = 0;
1464 infoPtr->items = 0;
1465 infoPtr->order = 0;
1466 infoPtr->bRectsValid = FALSE;
1467 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1468 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER));
1469 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN));
1470 infoPtr->bPressed = FALSE;
1471 infoPtr->bTracking = FALSE;
1472 infoPtr->iMoveItem = 0;
1473 infoPtr->himl = 0;
1474 infoPtr->iHotItem = -1;
1475 infoPtr->iHotDivider = -1;
1476 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
1477 infoPtr->nNotifyFormat =
1478 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
1479
1480 hdc = GetDC (0);
1481 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
1482 GetTextMetricsW (hdc, &tm);
1483 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1484 SelectObject (hdc, hOldFont);
1485 ReleaseDC (0, hdc);
1486
1487 OpenThemeData(hwnd, themeClass);
1488
1489 return 0;
1490 }
1491
1492
1493 static LRESULT
1494 HEADER_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1495 {
1496 HTHEME theme = GetWindowTheme(hwnd);
1497 CloseThemeData(theme);
1498 return 0;
1499 }
1500
1501 static LRESULT
1502 HEADER_NCDestroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1503 {
1504 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1505 HEADER_ITEM *lpItem;
1506 INT nItem;
1507
1508 if (infoPtr->items) {
1509 lpItem = infoPtr->items;
1510 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) {
1511 Free(lpItem->pszText);
1512 }
1513 Free (infoPtr->items);
1514 }
1515
1516 Free(infoPtr->order);
1517
1518 if (infoPtr->himl)
1519 ImageList_Destroy (infoPtr->himl);
1520
1521 SetWindowLongPtrW (hwnd, 0, 0);
1522 Free (infoPtr);
1523
1524 return 0;
1525 }
1526
1527
1528 static inline LRESULT
1529 HEADER_GetFont (HWND hwnd)
1530 {
1531 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1532
1533 return (LRESULT)infoPtr->hFont;
1534 }
1535
1536
1537 static BOOL
1538 HEADER_IsDragDistance(const HEADER_INFO *infoPtr, const POINT *pt)
1539 {
1540 /* Windows allows for a mouse movement before starting the drag. We use the
1541 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
1542 */
1543 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
1544 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
1545 }
1546
1547 static LRESULT
1548 HEADER_LButtonDblClk (HWND hwnd, WPARAM wParam, LPARAM lParam)
1549 {
1550 POINT pt;
1551 UINT flags;
1552 INT nItem;
1553
1554 pt.x = (short)LOWORD(lParam);
1555 pt.y = (short)HIWORD(lParam);
1556 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1557
1558 if ((GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) && (flags == HHT_ONHEADER))
1559 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMDBLCLICKW, nItem, NULL);
1560 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN))
1561 HEADER_SendNotifyWithHDItemT(hwnd, HDN_DIVIDERDBLCLICKW, nItem, NULL);
1562
1563 return 0;
1564 }
1565
1566
1567 static LRESULT
1568 HEADER_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
1569 {
1570 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1571 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1572 POINT pt;
1573 UINT flags;
1574 INT nItem;
1575 HDC hdc;
1576
1577 pt.x = (short)LOWORD(lParam);
1578 pt.y = (short)HIWORD(lParam);
1579 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1580
1581 if ((dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) {
1582 SetCapture (hwnd);
1583 infoPtr->bCaptured = TRUE;
1584 infoPtr->bPressed = TRUE;
1585 infoPtr->bDragging = FALSE;
1586 infoPtr->iMoveItem = nItem;
1587 infoPtr->ptLButtonDown = pt;
1588
1589 infoPtr->items[nItem].bDown = TRUE;
1590
1591 /* Send WM_CUSTOMDRAW */
1592 hdc = GetDC (hwnd);
1593 HEADER_RefreshItem (hwnd, hdc, nItem);
1594 ReleaseDC (hwnd, hdc);
1595
1596 TRACE("Pressed item %d!\n", nItem);
1597 }
1598 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) {
1599 INT iCurrWidth = infoPtr->items[nItem].cxy;
1600 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_BEGINTRACKW, nItem, HDI_WIDTH, iCurrWidth))
1601 {
1602 SetCapture (hwnd);
1603 infoPtr->bCaptured = TRUE;
1604 infoPtr->bTracking = TRUE;
1605 infoPtr->iMoveItem = nItem;
1606 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x;
1607
1608 if (!(dwStyle & HDS_FULLDRAG)) {
1609 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right;
1610 hdc = GetDC (hwnd);
1611 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1612 ReleaseDC (hwnd, hdc);
1613 }
1614
1615 TRACE("Begin tracking item %d!\n", nItem);
1616 }
1617 }
1618
1619 return 0;
1620 }
1621
1622
1623 static LRESULT
1624 HEADER_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1625 {
1626 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1627 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1628 POINT pt;
1629 UINT flags;
1630 INT nItem;
1631 HDC hdc;
1632
1633 pt.x = (INT)(SHORT)LOWORD(lParam);
1634 pt.y = (INT)(SHORT)HIWORD(lParam);
1635 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1636
1637 if (infoPtr->bPressed) {
1638 if (infoPtr->bDragging)
1639 {
1640 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1641 INT iNewOrder;
1642
1643 ImageList_DragShowNolock(FALSE);
1644 ImageList_EndDrag();
1645 lpItem->bDown=FALSE;
1646
1647 if (infoPtr->iHotDivider == -1)
1648 iNewOrder = -1;
1649 else if (infoPtr->iHotDivider == infoPtr->uNumItem)
1650 iNewOrder = infoPtr->uNumItem-1;
1651 else
1652 {
1653 iNewOrder = HEADER_IndexToOrder(hwnd, infoPtr->iHotDivider);
1654 if (iNewOrder > lpItem->iOrder)
1655 iNewOrder--;
1656 }
1657
1658 if (iNewOrder != -1 &&
1659 !HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, iNewOrder))
1660 {
1661 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder);
1662 infoPtr->bRectsValid = FALSE;
1663 InvalidateRect(hwnd, NULL, FALSE);
1664 }
1665 else
1666 InvalidateRect(hwnd, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
1667
1668 HEADER_SetHotDivider(hwnd, FALSE, -1);
1669 }
1670 else if (!(dwStyle&HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
1671 {
1672 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1673 hdc = GetDC (hwnd);
1674 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1675 ReleaseDC (hwnd, hdc);
1676
1677 HEADER_SendNotifyWithHDItemT(hwnd, HDN_ITEMCLICKW, infoPtr->iMoveItem, NULL);
1678 }
1679
1680 TRACE("Released item %d!\n", infoPtr->iMoveItem);
1681 infoPtr->bPressed = FALSE;
1682 }
1683 else if (infoPtr->bTracking) {
1684 INT iNewWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
1685 if (iNewWidth < 0)
1686 iNewWidth = 0;
1687 TRACE("End tracking item %d!\n", infoPtr->iMoveItem);
1688 infoPtr->bTracking = FALSE;
1689
1690 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1691
1692 if (!(dwStyle & HDS_FULLDRAG)) {
1693 hdc = GetDC (hwnd);
1694 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1695 ReleaseDC (hwnd, hdc);
1696 }
1697
1698 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth))
1699 {
1700 infoPtr->items[infoPtr->iMoveItem].cxy = iNewWidth;
1701 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1702 }
1703
1704 HEADER_SetItemBounds (hwnd);
1705 InvalidateRect(hwnd, NULL, TRUE);
1706 }
1707
1708 if (infoPtr->bCaptured) {
1709 infoPtr->bCaptured = FALSE;
1710 ReleaseCapture ();
1711 HEADER_SendSimpleNotify (hwnd, NM_RELEASEDCAPTURE);
1712 }
1713
1714 return 0;
1715 }
1716
1717
1718 static LRESULT
1719 HEADER_NotifyFormat (HWND hwnd, WPARAM wParam, LPARAM lParam)
1720 {
1721 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1722
1723 switch (lParam)
1724 {
1725 case NF_QUERY:
1726 return infoPtr->nNotifyFormat;
1727
1728 case NF_REQUERY:
1729 infoPtr->nNotifyFormat =
1730 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT,
1731 (WPARAM)hwnd, (LPARAM)NF_QUERY);
1732 return infoPtr->nNotifyFormat;
1733 }
1734
1735 return 0;
1736 }
1737
1738 static LRESULT
1739 HEADER_MouseLeave (HWND hwnd, WPARAM wParam, LPARAM lParam)
1740 {
1741 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1742 /* Reset hot-tracked item when mouse leaves control. */
1743 INT oldHotItem = infoPtr->iHotItem;
1744 HDC hdc = GetDC (hwnd);
1745
1746 infoPtr->iHotItem = -1;
1747 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1748 ReleaseDC (hwnd, hdc);
1749
1750 return 0;
1751 }
1752
1753
1754 static LRESULT
1755 HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
1756 {
1757 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1758 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1759 POINT pt;
1760 UINT flags;
1761 INT nItem, nWidth;
1762 HDC hdc;
1763 /* With theming, hottracking is always enabled */
1764 BOOL hotTrackEnabled =
1765 ((dwStyle & HDS_BUTTONS) && (dwStyle & HDS_HOTTRACK))
1766 || (GetWindowTheme (hwnd) != NULL);
1767 INT oldHotItem = infoPtr->iHotItem;
1768
1769 pt.x = (INT)(SHORT)LOWORD(lParam);
1770 pt.y = (INT)(SHORT)HIWORD(lParam);
1771 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1772
1773 if (hotTrackEnabled) {
1774 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN))
1775 infoPtr->iHotItem = nItem;
1776 else
1777 infoPtr->iHotItem = -1;
1778 }
1779
1780 if (infoPtr->bCaptured) {
1781 /* check if we should drag the header */
1782 if (infoPtr->bPressed && !infoPtr->bDragging && dwStyle&HDS_DRAGDROP
1783 && HEADER_IsDragDistance(infoPtr, &pt))
1784 {
1785 if (!HEADER_SendNotifyWithHDItemT(hwnd, HDN_BEGINDRAG, infoPtr->iMoveItem, NULL))
1786 {
1787 HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(hwnd, infoPtr->iMoveItem);
1788 if (hDragItem != NULL)
1789 {
1790 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1791 TRACE("Starting item drag\n");
1792 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
1793 ImageList_DragShowNolock(TRUE);
1794 ImageList_Destroy(hDragItem);
1795 infoPtr->bDragging = TRUE;
1796 }
1797 }
1798 }
1799
1800 if (infoPtr->bDragging)
1801 {
1802 POINT drag;
1803 drag.x = pt.x;
1804 drag.y = 0;
1805 ClientToScreen(hwnd, &drag);
1806 ImageList_DragMove(drag.x, drag.y);
1807 HEADER_SetHotDivider(hwnd, TRUE, lParam);
1808 }
1809
1810 if (infoPtr->bPressed && !infoPtr->bDragging) {
1811 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
1812 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
1813 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
1814 else
1815 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1816 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) {
1817 hdc = GetDC (hwnd);
1818 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1819 ReleaseDC (hwnd, hdc);
1820 }
1821
1822 TRACE("Moving pressed item %d!\n", infoPtr->iMoveItem);
1823 }
1824 else if (infoPtr->bTracking) {
1825 if (dwStyle & HDS_FULLDRAG) {
1826 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1827 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
1828 if (!HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, nWidth))
1829 {
1830 INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
1831 RECT rcClient;
1832 RECT rcScroll;
1833
1834 if (nWidth < 0) nWidth = 0;
1835 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1836 HEADER_SetItemBounds(hwnd);
1837
1838 GetClientRect(hwnd, &rcClient);
1839 rcScroll = rcClient;
1840 rcScroll.left = lpItem->rect.left + nOldWidth;
1841 ScrollWindowEx(hwnd, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
1842 InvalidateRect(hwnd, &lpItem->rect, FALSE);
1843 UpdateWindow(hwnd);
1844
1845 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, nWidth);
1846 }
1847 }
1848 else {
1849 INT iTrackWidth;
1850 hdc = GetDC (hwnd);
1851 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1852 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset;
1853 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left)
1854 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left;
1855 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1856 ReleaseDC (hwnd, hdc);
1857 iTrackWidth = infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left;
1858 /* FIXME: should stop tracking if HDN_TRACK returns TRUE */
1859 HEADER_SendNotifyWithIntFieldT(hwnd, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, iTrackWidth);
1860 }
1861
1862 TRACE("Tracking item %d!\n", infoPtr->iMoveItem);
1863 }
1864 }
1865
1866 if (hotTrackEnabled) {
1867 TRACKMOUSEEVENT tme;
1868 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
1869 hdc = GetDC (hwnd);
1870 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1871 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (hwnd, hdc, infoPtr->iHotItem);
1872 ReleaseDC (hwnd, hdc);
1873 }
1874 tme.cbSize = sizeof( tme );
1875 tme.dwFlags = TME_LEAVE;
1876 tme.hwndTrack = hwnd;
1877 TrackMouseEvent( &tme );
1878 }
1879
1880 return 0;
1881 }
1882
1883
1884 static LRESULT
1885 HEADER_Paint (HWND hwnd, WPARAM wParam)
1886 {
1887 HDC hdc;
1888 PAINTSTRUCT ps;
1889
1890 hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
1891 HEADER_Refresh (hwnd, hdc);
1892 if(!wParam)
1893 EndPaint (hwnd, &ps);
1894 return 0;
1895 }
1896
1897
1898 static LRESULT
1899 HEADER_RButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1900 {
1901 BOOL bRet;
1902 POINT pt;
1903
1904 pt.x = (short)LOWORD(lParam);
1905 pt.y = (short)HIWORD(lParam);
1906
1907 /* Send a Notify message */
1908 bRet = HEADER_SendSimpleNotify (hwnd, NM_RCLICK);
1909
1910 /* Change to screen coordinate for WM_CONTEXTMENU */
1911 ClientToScreen(hwnd, &pt);
1912
1913 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
1914 SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM) hwnd, MAKELPARAM(pt.x, pt.y));
1915
1916 return bRet;
1917 }
1918
1919
1920 static LRESULT
1921 HEADER_SetCursor (HWND hwnd, WPARAM wParam, LPARAM lParam)
1922 {
1923 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1924 POINT pt;
1925 UINT flags;
1926 INT nItem;
1927
1928 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam));
1929
1930 GetCursorPos (&pt);
1931 ScreenToClient (hwnd, &pt);
1932
1933 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1934
1935 if (flags == HHT_ONDIVIDER)
1936 SetCursor (infoPtr->hcurDivider);
1937 else if (flags == HHT_ONDIVOPEN)
1938 SetCursor (infoPtr->hcurDivopen);
1939 else
1940 SetCursor (infoPtr->hcurArrow);
1941
1942 return 0;
1943 }
1944
1945
1946 static LRESULT
1947 HEADER_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
1948 {
1949 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1950 TEXTMETRICW tm;
1951 HFONT hFont, hOldFont;
1952 HDC hdc;
1953
1954 infoPtr->hFont = (HFONT)wParam;
1955
1956 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
1957
1958 hdc = GetDC (0);
1959 hOldFont = SelectObject (hdc, hFont);
1960 GetTextMetricsW (hdc, &tm);
1961 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1962 SelectObject (hdc, hOldFont);
1963 ReleaseDC (0, hdc);
1964
1965 infoPtr->bRectsValid = FALSE;
1966
1967 if (lParam) {
1968 InvalidateRect(hwnd, NULL, FALSE);
1969 }
1970
1971 return 0;
1972 }
1973
1974 static LRESULT HEADER_SetRedraw(HWND hwnd, WPARAM wParam, LPARAM lParam)
1975 {
1976 /* ignoring the InvalidateRect calls is handled by user32. But some apps expect
1977 * that we invalidate the header and this has to be done manually */
1978 LRESULT ret;
1979
1980 ret = DefWindowProcW(hwnd, WM_SETREDRAW, wParam, lParam);
1981 if (wParam)
1982 InvalidateRect(hwnd, NULL, TRUE);
1983 return ret;
1984 }
1985
1986 /* Update the theme handle after a theme change */
1987 static LRESULT HEADER_ThemeChanged(HWND hwnd)
1988 {
1989 HTHEME theme = GetWindowTheme(hwnd);
1990 CloseThemeData(theme);
1991 OpenThemeData(hwnd, themeClass);
1992 InvalidateRect(hwnd, NULL, FALSE);
1993 return 0;
1994 }
1995
1996
1997 static LRESULT WINAPI
1998 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
1999 {
2000 TRACE("hwnd=%p msg=%x wparam=%lx lParam=%lx\n", hwnd, msg, wParam, lParam);
2001 if (!HEADER_GetInfoPtr (hwnd) && (msg != WM_CREATE))
2002 return DefWindowProcW (hwnd, msg, wParam, lParam);
2003 switch (msg) {
2004 /* case HDM_CLEARFILTER: */
2005
2006 case HDM_CREATEDRAGIMAGE:
2007 return HEADER_CreateDragImage (hwnd, wParam);
2008
2009 case HDM_DELETEITEM:
2010 return HEADER_DeleteItem (hwnd, wParam);
2011
2012 /* case HDM_EDITFILTER: */
2013
2014 case HDM_GETBITMAPMARGIN:
2015 return HEADER_GetBitmapMargin(hwnd);
2016
2017 case HDM_GETIMAGELIST:
2018 return HEADER_GetImageList (hwnd);
2019
2020 case HDM_GETITEMA:
2021 case HDM_GETITEMW:
2022 return HEADER_GetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW);
2023
2024 case HDM_GETITEMCOUNT:
2025 return HEADER_GetItemCount (hwnd);
2026
2027 case HDM_GETITEMRECT:
2028 return HEADER_GetItemRect (hwnd, wParam, lParam);
2029
2030 case HDM_GETORDERARRAY:
2031 return HEADER_GetOrderArray(hwnd, wParam, lParam);
2032
2033 case HDM_GETUNICODEFORMAT:
2034 return HEADER_GetUnicodeFormat (hwnd);
2035
2036 case HDM_HITTEST:
2037 return HEADER_HitTest (hwnd, wParam, lParam);
2038
2039 case HDM_INSERTITEMA:
2040 case HDM_INSERTITEMW:
2041 return HEADER_InsertItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW);
2042
2043 case HDM_LAYOUT:
2044 return HEADER_Layout (hwnd, wParam, lParam);
2045
2046 case HDM_ORDERTOINDEX:
2047 return HEADER_OrderToIndex(hwnd, wParam);
2048
2049 case HDM_SETBITMAPMARGIN:
2050 return HEADER_SetBitmapMargin(hwnd, wParam);
2051
2052 /* case HDM_SETFILTERCHANGETIMEOUT: */
2053
2054 case HDM_SETHOTDIVIDER:
2055 return HEADER_SetHotDivider(hwnd, wParam, lParam);
2056
2057 case HDM_SETIMAGELIST:
2058 return HEADER_SetImageList (hwnd, (HIMAGELIST)lParam);
2059
2060 case HDM_SETITEMA:
2061 case HDM_SETITEMW:
2062 return HEADER_SetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW);
2063
2064 case HDM_SETORDERARRAY:
2065 return HEADER_SetOrderArray(hwnd, wParam, lParam);
2066
2067 case HDM_SETUNICODEFORMAT:
2068 return HEADER_SetUnicodeFormat (hwnd, wParam);
2069
2070 case WM_CREATE:
2071 return HEADER_Create (hwnd, wParam, lParam);
2072
2073 case WM_DESTROY:
2074 return HEADER_Destroy (hwnd, wParam, lParam);
2075
2076 case WM_NCDESTROY:
2077 return HEADER_NCDestroy (hwnd, wParam, lParam);
2078
2079 case WM_ERASEBKGND:
2080 return 1;
2081
2082 case WM_GETDLGCODE:
2083 return DLGC_WANTTAB | DLGC_WANTARROWS;
2084
2085 case WM_GETFONT:
2086 return HEADER_GetFont (hwnd);
2087
2088 case WM_LBUTTONDBLCLK:
2089 return HEADER_LButtonDblClk (hwnd, wParam, lParam);
2090
2091 case WM_LBUTTONDOWN:
2092 return HEADER_LButtonDown (hwnd, wParam, lParam);
2093
2094 case WM_LBUTTONUP:
2095 return HEADER_LButtonUp (hwnd, wParam, lParam);
2096
2097 case WM_MOUSELEAVE:
2098 return HEADER_MouseLeave (hwnd, wParam, lParam);
2099
2100 case WM_MOUSEMOVE:
2101 return HEADER_MouseMove (hwnd, wParam, lParam);
2102
2103 case WM_NOTIFYFORMAT:
2104 return HEADER_NotifyFormat (hwnd, wParam, lParam);
2105
2106 case WM_SIZE:
2107 return HEADER_Size (hwnd, wParam);
2108
2109 case WM_THEMECHANGED:
2110 return HEADER_ThemeChanged (hwnd);
2111
2112 case WM_PRINTCLIENT:
2113 case WM_PAINT:
2114 return HEADER_Paint (hwnd, wParam);
2115
2116 case WM_RBUTTONUP:
2117 return HEADER_RButtonUp (hwnd, wParam, lParam);
2118
2119 case WM_SETCURSOR:
2120 return HEADER_SetCursor (hwnd, wParam, lParam);
2121
2122 case WM_SETFONT:
2123 return HEADER_SetFont (hwnd, wParam, lParam);
2124
2125 case WM_SETREDRAW:
2126 return HEADER_SetRedraw(hwnd, wParam, lParam);
2127
2128 default:
2129 if ((msg >= WM_USER) && (msg < WM_APP))
2130 ERR("unknown msg %04x wp=%04lx lp=%08lx\n",
2131 msg, wParam, lParam );
2132 return DefWindowProcW(hwnd, msg, wParam, lParam);
2133 }
2134 }
2135
2136
2137 VOID
2138 HEADER_Register (void)
2139 {
2140 WNDCLASSW wndClass;
2141
2142 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2143 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
2144 wndClass.lpfnWndProc = HEADER_WindowProc;
2145 wndClass.cbClsExtra = 0;
2146 wndClass.cbWndExtra = sizeof(HEADER_INFO *);
2147 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2148 wndClass.lpszClassName = WC_HEADERW;
2149
2150 RegisterClassW (&wndClass);
2151 }
2152
2153
2154 VOID
2155 HEADER_Unregister (void)
2156 {
2157 UnregisterClassW (WC_HEADERW, NULL);
2158 }
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