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[COMCTL32]
[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 "vssym32.h"
43 #include "uxtheme.h"
44 #include "wine/debug.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(header);
47
48 typedef struct
49 {
50 INT cxy;
51 HBITMAP hbm;
52 LPWSTR pszText;
53 INT fmt;
54 LPARAM lParam;
55 INT iImage;
56 INT iOrder; /* see documentation of HD_ITEM */
57
58 BOOL bDown; /* is item pressed? (used for drawing) */
59 RECT rect; /* bounding rectangle of the item */
60 DWORD callbackMask; /* HDI_* flags for items that are callback */
61 } HEADER_ITEM;
62
63
64 typedef struct
65 {
66 HWND hwndSelf; /* Control window */
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 DWORD dwStyle; /* the cached window GWL_STYLE */
81 INT iMoveItem; /* index of tracked item. (Tracking mode) */
82 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
83 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
84 INT iHotItem; /* index of hot item (cursor is over this item) */
85 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
86 INT iMargin; /* width of the margin that surrounds a bitmap */
87
88 HIMAGELIST himl; /* handle to an image list (may be 0) */
89 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */
90 INT *order; /* array of item IDs indexed by order */
91 BOOL bRectsValid; /* validity flag for bounding rectangles */
92 } HEADER_INFO;
93
94
95 #define VERT_BORDER 4
96 #define DIVIDER_WIDTH 10
97 #define HOT_DIVIDER_WIDTH 2
98 #define MAX_HEADER_TEXT_LEN 260
99 #define HDN_UNICODE_OFFSET 20
100 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
101
102 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER)
103 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER)
104 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM))
105 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP)
106
107
108 static BOOL HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask);
109 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem);
110 static LRESULT HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *hdr);
111 static LRESULT HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect);
112
113 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0};
114
115 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, const HDITEMW *phdi, BOOL fUnicode)
116 {
117 if (mask & HDI_UNSUPPORTED_FIELDS)
118 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS));
119
120 if (mask & HDI_BITMAP)
121 lpItem->hbm = phdi->hbm;
122
123 if (mask & HDI_FORMAT)
124 lpItem->fmt = phdi->fmt;
125
126 if (mask & HDI_LPARAM)
127 lpItem->lParam = phdi->lParam;
128
129 if (mask & HDI_WIDTH)
130 lpItem->cxy = phdi->cxy;
131
132 if (mask & HDI_IMAGE)
133 {
134 lpItem->iImage = phdi->iImage;
135 if (phdi->iImage == I_IMAGECALLBACK)
136 lpItem->callbackMask |= HDI_IMAGE;
137 else
138 lpItem->callbackMask &= ~HDI_IMAGE;
139 }
140
141 if (mask & HDI_TEXT)
142 {
143 Free(lpItem->pszText);
144 lpItem->pszText = NULL;
145
146 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
147 {
148 static const WCHAR emptyString[] = {0};
149
150 LPCWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString);
151 if (fUnicode)
152 Str_SetPtrW(&lpItem->pszText, pszText);
153 else
154 Str_SetPtrAtoW(&lpItem->pszText, (LPCSTR)pszText);
155 lpItem->callbackMask &= ~HDI_TEXT;
156 }
157 else
158 {
159 lpItem->pszText = NULL;
160 lpItem->callbackMask |= HDI_TEXT;
161 }
162 }
163 }
164
165 static inline LRESULT
166 HEADER_IndexToOrder (const HEADER_INFO *infoPtr, INT iItem)
167 {
168 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
169 return lpItem->iOrder;
170 }
171
172
173 static INT
174 HEADER_OrderToIndex(const HEADER_INFO *infoPtr, INT iorder)
175 {
176 if ((iorder <0) || iorder >= infoPtr->uNumItem)
177 return iorder;
178 return infoPtr->order[iorder];
179 }
180
181 static void
182 HEADER_ChangeItemOrder(const HEADER_INFO *infoPtr, INT iItem, INT iNewOrder)
183 {
184 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
185 INT i, nMin, nMax;
186
187 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder);
188 if (lpItem->iOrder < iNewOrder)
189 {
190 memmove(&infoPtr->order[lpItem->iOrder],
191 &infoPtr->order[lpItem->iOrder + 1],
192 (iNewOrder - lpItem->iOrder) * sizeof(INT));
193 }
194 if (iNewOrder < lpItem->iOrder)
195 {
196 memmove(&infoPtr->order[iNewOrder + 1],
197 &infoPtr->order[iNewOrder],
198 (lpItem->iOrder - iNewOrder) * sizeof(INT));
199 }
200 infoPtr->order[iNewOrder] = iItem;
201 nMin = min(lpItem->iOrder, iNewOrder);
202 nMax = max(lpItem->iOrder, iNewOrder);
203 for (i = nMin; i <= nMax; i++)
204 infoPtr->items[infoPtr->order[i]].iOrder = i;
205 }
206
207 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
208 static INT
209 HEADER_NextItem(const HEADER_INFO *infoPtr, INT iItem)
210 {
211 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)+1);
212 }
213
214 static INT
215 HEADER_PrevItem(const HEADER_INFO *infoPtr, INT iItem)
216 {
217 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)-1);
218 }
219
220 /* TRUE when item is not resizable with dividers,
221 note that valid index should be supplied */
222 static inline BOOL
223 HEADER_IsItemFixed(const HEADER_INFO *infoPtr, INT iItem)
224 {
225 return (infoPtr->dwStyle & HDS_NOSIZING) || (infoPtr->items[iItem].fmt & HDF_FIXEDWIDTH);
226 }
227
228 static void
229 HEADER_SetItemBounds (HEADER_INFO *infoPtr)
230 {
231 HEADER_ITEM *phdi;
232 RECT rect;
233 unsigned int i;
234 int x;
235
236 infoPtr->bRectsValid = TRUE;
237
238 if (infoPtr->uNumItem == 0)
239 return;
240
241 GetClientRect (infoPtr->hwndSelf, &rect);
242
243 x = rect.left;
244 for (i = 0; i < infoPtr->uNumItem; i++) {
245 phdi = &infoPtr->items[HEADER_OrderToIndex(infoPtr,i)];
246 phdi->rect.top = rect.top;
247 phdi->rect.bottom = rect.bottom;
248 phdi->rect.left = x;
249 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0);
250 x = phdi->rect.right;
251 }
252 }
253
254 static LRESULT
255 HEADER_Size (HEADER_INFO *infoPtr)
256 {
257 HEADER_SetItemBounds(infoPtr);
258 return 0;
259 }
260
261 static void HEADER_GetHotDividerRect(const HEADER_INFO *infoPtr, RECT *r)
262 {
263 INT iDivider = infoPtr->iHotDivider;
264 if (infoPtr->uNumItem > 0)
265 {
266 HEADER_ITEM *lpItem;
267
268 if (iDivider < infoPtr->uNumItem)
269 {
270 lpItem = &infoPtr->items[iDivider];
271 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
272 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
273 }
274 else
275 {
276 lpItem = &infoPtr->items[HEADER_OrderToIndex(infoPtr, infoPtr->uNumItem-1)];
277 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
278 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
279 }
280 r->top = lpItem->rect.top;
281 r->bottom = lpItem->rect.bottom;
282 }
283 else
284 {
285 RECT clientRect;
286 GetClientRect(infoPtr->hwndSelf, &clientRect);
287 *r = clientRect;
288 r->right = r->left + HOT_DIVIDER_WIDTH/2;
289 }
290 }
291
292
293 static INT
294 HEADER_DrawItem (HEADER_INFO *infoPtr, HDC hdc, INT iItem, BOOL bHotTrack, LRESULT lCDFlags)
295 {
296 HEADER_ITEM *phdi = &infoPtr->items[iItem];
297 RECT r;
298 INT oldBkMode;
299 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
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, comctl32_color.clr3dFace);
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(infoPtr, 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 (!(infoPtr->dwStyle & HDS_FLAT))
340 {
341 if (infoPtr->dwStyle & HDS_BUTTONS) {
342 if (phdi->bDown) {
343 DrawEdge (hdc, &r, BDR_RAISEDOUTER,
344 BF_RECT | BF_FLAT | BF_MIDDLE | BF_ADJUST);
345 }
346 else
347 DrawEdge (hdc, &r, EDGE_RAISED,
348 BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST);
349 }
350 else
351 DrawEdge (hdc, &r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST);
352 }
353
354 hbr = CreateSolidBrush(GetBkColor(hdc));
355 FillRect(hdc, &r, hbr);
356 DeleteObject(hbr);
357 }
358 if (phdi->bDown) {
359 r.left += 2;
360 r.top += 2;
361 }
362
363 if (phdi->fmt & HDF_OWNERDRAW) {
364 DRAWITEMSTRUCT dis;
365
366 dis.CtlType = ODT_HEADER;
367 dis.CtlID = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
368 dis.itemID = iItem;
369 dis.itemAction = ODA_DRAWENTIRE;
370 dis.itemState = phdi->bDown ? ODS_SELECTED : 0;
371 dis.hwndItem = infoPtr->hwndSelf;
372 dis.hDC = hdc;
373 dis.rcItem = phdi->rect;
374 dis.itemData = phdi->lParam;
375 oldBkMode = SetBkMode(hdc, TRANSPARENT);
376 SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM, dis.CtlID, (LPARAM)&dis);
377 if (oldBkMode != TRANSPARENT)
378 SetBkMode(hdc, oldBkMode);
379 }
380 else {
381 UINT rw, rh, /* width and height of r */
382 *x = NULL, *w = NULL; /* x and width of the pic (bmp or img) which is part of cnt */
383 /* cnt,txt,img,bmp */
384 UINT cx, tx, ix, bx,
385 cw, tw, iw, bw;
386 INT img_cx, img_cy;
387 BITMAP bmp;
388
389 HEADER_PrepareCallbackItems(infoPtr, iItem, HDI_TEXT|HDI_IMAGE);
390 cw = tw = iw = bw = 0;
391 rw = r.right - r.left;
392 rh = r.bottom - r.top;
393
394 if (phdi->fmt & HDF_STRING) {
395 RECT textRect;
396
397 SetRectEmpty(&textRect);
398 DrawTextW (hdc, phdi->pszText, -1,
399 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT);
400 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin;
401 }
402
403 if ((phdi->fmt & HDF_IMAGE) && ImageList_GetIconSize( infoPtr->himl, &img_cx, &img_cy )) {
404 iw = img_cx + 2 * infoPtr->iMargin;
405 x = &ix;
406 w = &iw;
407 }
408
409 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) {
410 GetObjectW (phdi->hbm, sizeof(BITMAP), &bmp);
411 bw = bmp.bmWidth + 2 * infoPtr->iMargin;
412 if (!iw) {
413 x = &bx;
414 w = &bw;
415 }
416 }
417
418 if (bw || iw)
419 cw += *w;
420
421 /* align cx using the unclipped cw */
422 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT)
423 cx = r.left;
424 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER)
425 cx = r.left + rw / 2 - cw / 2;
426 else /* HDF_RIGHT */
427 cx = r.right - cw;
428
429 /* clip cx & cw */
430 if (cx < r.left)
431 cx = r.left;
432 if (cx + cw > r.right)
433 cw = r.right - cx;
434
435 tx = cx + infoPtr->iMargin;
436 /* since cw might have changed we have to recalculate tw */
437 tw = cw - infoPtr->iMargin * 2;
438
439 if (iw || bw) {
440 tw -= *w;
441 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) {
442 /* put pic behind text */
443 *x = cx + tw + infoPtr->iMargin * 3;
444 } else {
445 *x = cx + infoPtr->iMargin;
446 /* move text behind pic */
447 tx += *w;
448 }
449 }
450
451 if (iw && bw) {
452 /* since we're done with the layout we can
453 now calculate the position of bmp which
454 has no influence on alignment and layout
455 because of img */
456 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT)
457 bx = cx - bw + infoPtr->iMargin;
458 else
459 bx = cx + cw + infoPtr->iMargin;
460 }
461
462 if (iw || bw) {
463 HDC hClipDC = GetDC(infoPtr->hwndSelf);
464 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
465 SelectClipRgn(hClipDC, hClipRgn);
466
467 if (bw) {
468 HDC hdcBitmap = CreateCompatibleDC (hClipDC);
469 SelectObject (hdcBitmap, phdi->hbm);
470 BitBlt (hClipDC, bx, r.top + ((INT)rh - bmp.bmHeight) / 2,
471 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
472 DeleteDC (hdcBitmap);
473 }
474
475 if (iw) {
476 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC,
477 ix, r.top + ((INT)rh - img_cy) / 2,
478 img_cx, img_cy, CLR_DEFAULT, CLR_DEFAULT, 0);
479 }
480
481 DeleteObject(hClipRgn);
482 ReleaseDC(infoPtr->hwndSelf, hClipDC);
483 }
484
485 if (((phdi->fmt & HDF_STRING)
486 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP|
487 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */
488 && (phdi->pszText)) {
489 oldBkMode = SetBkMode(hdc, TRANSPARENT);
490 r.left = tx;
491 r.right = tx + tw;
492 DrawTextW (hdc, phdi->pszText, -1,
493 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE);
494 if (oldBkMode != TRANSPARENT)
495 SetBkMode(hdc, oldBkMode);
496 }
497 HEADER_FreeCallbackItems(phdi);
498 }/*Ownerdrawn*/
499
500 return phdi->rect.right;
501 }
502
503 static void
504 HEADER_DrawHotDivider(const HEADER_INFO *infoPtr, HDC hdc)
505 {
506 HBRUSH brush;
507 RECT r;
508
509 HEADER_GetHotDividerRect(infoPtr, &r);
510 brush = CreateSolidBrush(comctl32_color.clrHighlight);
511 FillRect(hdc, &r, brush);
512 DeleteObject(brush);
513 }
514
515 static void
516 HEADER_Refresh (HEADER_INFO *infoPtr, HDC hdc)
517 {
518 HFONT hFont, hOldFont;
519 RECT rect, rcRest;
520 HBRUSH hbrBk;
521 UINT i;
522 INT x;
523 LRESULT lCDFlags;
524 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf);
525
526 if (!infoPtr->bRectsValid)
527 HEADER_SetItemBounds(infoPtr);
528
529 /* get rect for the bar, adjusted for the border */
530 GetClientRect (infoPtr->hwndSelf, &rect);
531 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hdc, &rect);
532
533 if (infoPtr->bDragging)
534 ImageList_DragShowNolock(FALSE);
535
536 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
537 hOldFont = SelectObject (hdc, hFont);
538
539 /* draw Background */
540 if (infoPtr->uNumItem == 0 && theme == NULL) {
541 hbrBk = GetSysColorBrush(COLOR_3DFACE);
542 FillRect(hdc, &rect, hbrBk);
543 }
544
545 x = rect.left;
546 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) {
547 int idx = HEADER_OrderToIndex(infoPtr,i);
548 if (RectVisible(hdc, &infoPtr->items[idx].rect))
549 HEADER_DrawItem(infoPtr, hdc, idx, infoPtr->iHotItem == idx, lCDFlags);
550 x = infoPtr->items[idx].rect.right;
551 }
552
553 rcRest = rect;
554 rcRest.left = x;
555 if ((x <= rect.right) && RectVisible(hdc, &rcRest) && (infoPtr->uNumItem > 0)) {
556 if (theme != NULL) {
557 DrawThemeBackground(theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rcRest, NULL);
558 }
559 else if (infoPtr->dwStyle & HDS_FLAT) {
560 hbrBk = GetSysColorBrush(COLOR_3DFACE);
561 FillRect(hdc, &rcRest, hbrBk);
562 }
563 else
564 {
565 if (infoPtr->dwStyle & HDS_BUTTONS)
566 DrawEdge (hdc, &rcRest, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE);
567 else
568 DrawEdge (hdc, &rcRest, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
569 }
570 }
571
572 if (infoPtr->iHotDivider != -1)
573 HEADER_DrawHotDivider(infoPtr, hdc);
574
575 if (infoPtr->bDragging)
576 ImageList_DragShowNolock(TRUE);
577 SelectObject (hdc, hOldFont);
578
579 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
580 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hdc, &rect);
581 }
582
583
584 static void
585 HEADER_RefreshItem (HEADER_INFO *infoPtr, INT iItem)
586 {
587 if (!infoPtr->bRectsValid)
588 HEADER_SetItemBounds(infoPtr);
589
590 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[iItem].rect, FALSE);
591 }
592
593
594 static void
595 HEADER_InternalHitTest (const HEADER_INFO *infoPtr, const POINT *lpPt, UINT *pFlags, INT *pItem)
596 {
597 RECT rect, rcTest;
598 UINT iCount;
599 INT width;
600 BOOL bNoWidth;
601
602 GetClientRect (infoPtr->hwndSelf, &rect);
603
604 *pFlags = 0;
605 bNoWidth = FALSE;
606 if (PtInRect (&rect, *lpPt))
607 {
608 if (infoPtr->uNumItem == 0) {
609 *pFlags |= HHT_NOWHERE;
610 *pItem = 1;
611 TRACE("NOWHERE\n");
612 return;
613 }
614 else {
615 /* somewhere inside */
616 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) {
617 rect = infoPtr->items[iCount].rect;
618 width = rect.right - rect.left;
619 if (width == 0) {
620 bNoWidth = TRUE;
621 continue;
622 }
623 if (PtInRect (&rect, *lpPt)) {
624 if (width <= 2 * DIVIDER_WIDTH) {
625 *pFlags |= HHT_ONHEADER;
626 *pItem = iCount;
627 TRACE("ON HEADER %d\n", iCount);
628 return;
629 }
630 if (HEADER_IndexToOrder(infoPtr, iCount) > 0) {
631 rcTest = rect;
632 rcTest.right = rcTest.left + DIVIDER_WIDTH;
633 if (PtInRect (&rcTest, *lpPt)) {
634 if (HEADER_IsItemFixed(infoPtr, HEADER_PrevItem(infoPtr, iCount)))
635 {
636 *pFlags |= HHT_ONHEADER;
637 *pItem = iCount;
638 TRACE("ON HEADER %d\n", *pItem);
639 return;
640 }
641 if (bNoWidth) {
642 *pFlags |= HHT_ONDIVOPEN;
643 *pItem = HEADER_PrevItem(infoPtr, iCount);
644 TRACE("ON DIVOPEN %d\n", *pItem);
645 return;
646 }
647 else {
648 *pFlags |= HHT_ONDIVIDER;
649 *pItem = HEADER_PrevItem(infoPtr, iCount);
650 TRACE("ON DIVIDER %d\n", *pItem);
651 return;
652 }
653 }
654 }
655 rcTest = rect;
656 rcTest.left = rcTest.right - DIVIDER_WIDTH;
657 if (!HEADER_IsItemFixed(infoPtr, iCount) && PtInRect (&rcTest, *lpPt))
658 {
659 *pFlags |= HHT_ONDIVIDER;
660 *pItem = iCount;
661 TRACE("ON DIVIDER %d\n", *pItem);
662 return;
663 }
664
665 *pFlags |= HHT_ONHEADER;
666 *pItem = iCount;
667 TRACE("ON HEADER %d\n", iCount);
668 return;
669 }
670 }
671
672 /* check for last divider part (on nowhere) */
673 if (!HEADER_IsItemFixed(infoPtr, infoPtr->uNumItem - 1))
674 {
675 rect = infoPtr->items[infoPtr->uNumItem-1].rect;
676 rect.left = rect.right;
677 rect.right += DIVIDER_WIDTH;
678 if (PtInRect (&rect, *lpPt)) {
679 if (bNoWidth) {
680 *pFlags |= HHT_ONDIVOPEN;
681 *pItem = infoPtr->uNumItem - 1;
682 TRACE("ON DIVOPEN %d\n", *pItem);
683 return;
684 }
685 else {
686 *pFlags |= HHT_ONDIVIDER;
687 *pItem = infoPtr->uNumItem - 1;
688 TRACE("ON DIVIDER %d\n", *pItem);
689 return;
690 }
691 }
692 }
693
694 *pFlags |= HHT_NOWHERE;
695 *pItem = 1;
696 TRACE("NOWHERE\n");
697 return;
698 }
699 }
700 else {
701 if (lpPt->x < rect.left) {
702 TRACE("TO LEFT\n");
703 *pFlags |= HHT_TOLEFT;
704 }
705 else if (lpPt->x > rect.right) {
706 TRACE("TO RIGHT\n");
707 *pFlags |= HHT_TORIGHT;
708 }
709
710 if (lpPt->y < rect.top) {
711 TRACE("ABOVE\n");
712 *pFlags |= HHT_ABOVE;
713 }
714 else if (lpPt->y > rect.bottom) {
715 TRACE("BELOW\n");
716 *pFlags |= HHT_BELOW;
717 }
718 }
719
720 *pItem = 1;
721 TRACE("flags=0x%X\n", *pFlags);
722 return;
723 }
724
725
726 static void
727 HEADER_DrawTrackLine (const HEADER_INFO *infoPtr, HDC hdc, INT x)
728 {
729 RECT rect;
730
731 GetClientRect (infoPtr->hwndSelf, &rect);
732 PatBlt( hdc, x, rect.top, 1, rect.bottom - rect.top, DSTINVERT );
733 }
734
735 /***
736 * DESCRIPTION:
737 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify
738 *
739 * PARAMETER(S):
740 * [I] infoPtr : the header that wants to send the notify
741 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW
742 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW
743 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA
744 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after
745 * the HDITEM is no longer in use or NULL if none was needed
746 *
747 * NOTE: We depend on HDITEMA and HDITEMW having the same structure
748 */
749 static void HEADER_CopyHDItemForNotify(const HEADER_INFO *infoPtr, HDITEMW *dest,
750 const HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch)
751 {
752 *ppvScratch = NULL;
753 *dest = *src;
754
755 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */
756 {
757 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE)
758 {
759 dest->pszText = NULL;
760 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText);
761 *ppvScratch = dest->pszText;
762 }
763
764 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE)
765 {
766 dest->pszText = NULL;
767 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText);
768 *ppvScratch = dest->pszText;
769 }
770 }
771 }
772
773 static UINT HEADER_NotifyCodeWtoA(UINT code)
774 {
775 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/
776 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE)
777 return code + HDN_UNICODE_OFFSET;
778 else
779 return code;
780 }
781
782 static LRESULT
783 HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *nmhdr)
784 {
785 nmhdr->hwndFrom = infoPtr->hwndSelf;
786 nmhdr->idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
787 nmhdr->code = code;
788
789 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
790 nmhdr->idFrom, (LPARAM)nmhdr);
791 }
792
793 static BOOL
794 HEADER_SendSimpleNotify (const HEADER_INFO *infoPtr, UINT code)
795 {
796 NMHDR nmhdr;
797 return (BOOL)HEADER_SendNotify(infoPtr, code, &nmhdr);
798 }
799
800 static LRESULT
801 HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect)
802 {
803 NMCUSTOMDRAW nm;
804 nm.dwDrawStage = dwDrawStage;
805 nm.hdc = hdc;
806 nm.rc = *rect;
807 nm.dwItemSpec = 0;
808 nm.uItemState = 0;
809 nm.lItemlParam = 0;
810
811 return HEADER_SendNotify(infoPtr, NM_CUSTOMDRAW, (NMHDR *)&nm);
812 }
813
814 static BOOL
815 HEADER_SendNotifyWithHDItemT(const HEADER_INFO *infoPtr, UINT code, INT iItem, HDITEMW *lpItem)
816 {
817 NMHEADERW nmhdr;
818
819 if (infoPtr->nNotifyFormat != NFR_UNICODE)
820 code = HEADER_NotifyCodeWtoA(code);
821 nmhdr.iItem = iItem;
822 nmhdr.iButton = 0;
823 nmhdr.pitem = lpItem;
824
825 return (BOOL)HEADER_SendNotify(infoPtr, code, (NMHDR *)&nmhdr);
826 }
827
828 static BOOL
829 HEADER_SendNotifyWithIntFieldT(const HEADER_INFO *infoPtr, UINT code, INT iItem, INT mask, INT iValue)
830 {
831 HDITEMW nmitem;
832
833 /* copying only the iValue should be ok but to make the code more robust we copy everything */
834 nmitem.cxy = infoPtr->items[iItem].cxy;
835 nmitem.hbm = infoPtr->items[iItem].hbm;
836 nmitem.pszText = NULL;
837 nmitem.cchTextMax = 0;
838 nmitem.fmt = infoPtr->items[iItem].fmt;
839 nmitem.lParam = infoPtr->items[iItem].lParam;
840 nmitem.iOrder = infoPtr->items[iItem].iOrder;
841 nmitem.iImage = infoPtr->items[iItem].iImage;
842
843 nmitem.mask = mask;
844 switch (mask)
845 {
846 case HDI_WIDTH:
847 nmitem.cxy = iValue;
848 break;
849 case HDI_ORDER:
850 nmitem.iOrder = iValue;
851 break;
852 default:
853 ERR("invalid mask value 0x%x\n", iValue);
854 }
855
856 return HEADER_SendNotifyWithHDItemT(infoPtr, code, iItem, &nmitem);
857 }
858
859 /**
860 * Prepare callback items
861 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA
862 * (so we handle the two cases only doing a specific cast for pszText).
863 * Checks if any of the required field are callback. If there are sends a
864 * NMHDISPINFO notify to retrieve these items. The items are stored in the
865 * HEADER_ITEM pszText and iImage fields. They should be freed with
866 * HEADER_FreeCallbackItems.
867 *
868 * @param hwnd : hwnd header container handler
869 * @param iItem : the header item id
870 * @param reqMask : required fields. If any of them is callback this function will fetch it
871 *
872 * @return TRUE on success, else FALSE
873 */
874 static BOOL
875 HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask)
876 {
877 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
878 DWORD mask = reqMask & lpItem->callbackMask;
879 NMHDDISPINFOW dispInfo;
880 void *pvBuffer = NULL;
881
882 if (mask == 0)
883 return TRUE;
884 if (mask&HDI_TEXT && lpItem->pszText != NULL)
885 {
886 ERR("(): function called without a call to FreeCallbackItems\n");
887 Free(lpItem->pszText);
888 lpItem->pszText = NULL;
889 }
890
891 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW));
892 dispInfo.hdr.hwndFrom = infoPtr->hwndSelf;
893 dispInfo.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
894 if (infoPtr->nNotifyFormat == NFR_UNICODE)
895 {
896 dispInfo.hdr.code = HDN_GETDISPINFOW;
897 if (mask & HDI_TEXT)
898 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(WCHAR));
899 }
900 else
901 {
902 dispInfo.hdr.code = HDN_GETDISPINFOA;
903 if (mask & HDI_TEXT)
904 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(CHAR));
905 }
906 dispInfo.pszText = pvBuffer;
907 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0);
908 dispInfo.iItem = iItem;
909 dispInfo.mask = mask;
910 dispInfo.lParam = lpItem->lParam;
911
912 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A');
913 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, dispInfo.hdr.idFrom, (LPARAM)&dispInfo);
914
915 TRACE("SendMessage returns(mask:0x%x,str:%s,lParam:%p)\n",
916 dispInfo.mask,
917 (infoPtr->nNotifyFormat == NFR_UNICODE ? debugstr_w(dispInfo.pszText) : (LPSTR) dispInfo.pszText),
918 (void*) dispInfo.lParam);
919
920 if (mask & HDI_IMAGE)
921 lpItem->iImage = dispInfo.iImage;
922 if (mask & HDI_TEXT)
923 {
924 if (infoPtr->nNotifyFormat == NFR_UNICODE)
925 {
926 lpItem->pszText = pvBuffer;
927
928 /* the user might have used his own buffer */
929 if (dispInfo.pszText != lpItem->pszText)
930 Str_GetPtrW(dispInfo.pszText, lpItem->pszText, MAX_HEADER_TEXT_LEN);
931 }
932 else
933 {
934 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)dispInfo.pszText);
935 Free(pvBuffer);
936 }
937 }
938
939 if (dispInfo.mask & HDI_DI_SETITEM)
940 {
941 /* make the items permanent */
942 lpItem->callbackMask &= ~dispInfo.mask;
943 }
944
945 return TRUE;
946 }
947
948 /***
949 * DESCRIPTION:
950 * Free the items that might be allocated with HEADER_PrepareCallbackItems
951 *
952 * PARAMETER(S):
953 * [I] lpItem : the item to free the data
954 *
955 */
956 static void
957 HEADER_FreeCallbackItems(HEADER_ITEM *lpItem)
958 {
959 if (lpItem->callbackMask&HDI_TEXT)
960 {
961 Free(lpItem->pszText);
962 lpItem->pszText = NULL;
963 }
964
965 if (lpItem->callbackMask&HDI_IMAGE)
966 lpItem->iImage = I_IMAGECALLBACK;
967 }
968
969 static LRESULT
970 HEADER_CreateDragImage (HEADER_INFO *infoPtr, INT iItem)
971 {
972 HEADER_ITEM *lpItem;
973 HIMAGELIST himl;
974 HBITMAP hMemory, hOldBitmap;
975 LRESULT lCDFlags;
976 RECT rc;
977 HDC hMemoryDC;
978 HDC hDeviceDC;
979 int height, width;
980 HFONT hFont;
981
982 if (iItem >= infoPtr->uNumItem)
983 return FALSE;
984
985 if (!infoPtr->bRectsValid)
986 HEADER_SetItemBounds(infoPtr);
987
988 lpItem = &infoPtr->items[iItem];
989 width = lpItem->rect.right - lpItem->rect.left;
990 height = lpItem->rect.bottom - lpItem->rect.top;
991
992 hDeviceDC = GetDC(NULL);
993 hMemoryDC = CreateCompatibleDC(hDeviceDC);
994 hMemory = CreateCompatibleBitmap(hDeviceDC, width, height);
995 ReleaseDC(NULL, hDeviceDC);
996 hOldBitmap = SelectObject(hMemoryDC, hMemory);
997 SetViewportOrgEx(hMemoryDC, -lpItem->rect.left, -lpItem->rect.top, NULL);
998 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject(SYSTEM_FONT);
999 SelectObject(hMemoryDC, hFont);
1000
1001 GetClientRect(infoPtr->hwndSelf, &rc);
1002 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hMemoryDC, &rc);
1003 HEADER_DrawItem(infoPtr, hMemoryDC, iItem, FALSE, lCDFlags);
1004 if (lCDFlags & CDRF_NOTIFYPOSTPAINT)
1005 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hMemoryDC, &rc);
1006
1007 hMemory = SelectObject(hMemoryDC, hOldBitmap);
1008 DeleteDC(hMemoryDC);
1009
1010 if (hMemory == NULL) /* if anything failed */
1011 return FALSE;
1012
1013 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1);
1014 ImageList_Add(himl, hMemory, NULL);
1015 DeleteObject(hMemory);
1016 return (LRESULT)himl;
1017 }
1018
1019 static LRESULT
1020 HEADER_SetHotDivider(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1021 {
1022 INT iDivider;
1023 RECT r;
1024
1025 if (wParam)
1026 {
1027 POINT pt;
1028 UINT flags;
1029 pt.x = (INT)(SHORT)LOWORD(lParam);
1030 pt.y = 0;
1031 HEADER_InternalHitTest (infoPtr, &pt, &flags, &iDivider);
1032
1033 if (flags & HHT_TOLEFT)
1034 iDivider = 0;
1035 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
1036 iDivider = infoPtr->uNumItem;
1037 else
1038 {
1039 HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
1040 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
1041 iDivider = HEADER_NextItem(infoPtr, iDivider);
1042 }
1043 }
1044 else
1045 iDivider = (INT)lParam;
1046
1047 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
1048 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
1049 return iDivider;
1050
1051 if (iDivider != infoPtr->iHotDivider)
1052 {
1053 if (infoPtr->iHotDivider != -1)
1054 {
1055 HEADER_GetHotDividerRect(infoPtr, &r);
1056 InvalidateRect(infoPtr->hwndSelf, &r, FALSE);
1057 }
1058 infoPtr->iHotDivider = iDivider;
1059 if (iDivider != -1)
1060 {
1061 HEADER_GetHotDividerRect(infoPtr, &r);
1062 InvalidateRect(infoPtr->hwndSelf, &r, FALSE);
1063 }
1064 }
1065 return iDivider;
1066 }
1067
1068 static LRESULT
1069 HEADER_DeleteItem (HEADER_INFO *infoPtr, INT iItem)
1070 {
1071 INT iOrder;
1072 UINT i;
1073
1074 TRACE("[iItem=%d]\n", iItem);
1075
1076 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1077 return FALSE;
1078
1079 for (i = 0; i < infoPtr->uNumItem; i++)
1080 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1081
1082 iOrder = infoPtr->items[iItem].iOrder;
1083 Free(infoPtr->items[iItem].pszText);
1084
1085 infoPtr->uNumItem--;
1086 memmove(&infoPtr->items[iItem], &infoPtr->items[iItem + 1],
1087 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM));
1088 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1],
1089 (infoPtr->uNumItem - iOrder) * sizeof(INT));
1090 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1091 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1092
1093 /* Correct the orders */
1094 for (i = 0; i < infoPtr->uNumItem; i++)
1095 {
1096 if (infoPtr->order[i] > iItem)
1097 infoPtr->order[i]--;
1098 if (i >= iOrder)
1099 infoPtr->items[infoPtr->order[i]].iOrder = i;
1100 }
1101 for (i = 0; i < infoPtr->uNumItem; i++)
1102 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1103
1104 HEADER_SetItemBounds (infoPtr);
1105 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1106
1107 return TRUE;
1108 }
1109
1110
1111 static LRESULT
1112 HEADER_GetImageList (const HEADER_INFO *infoPtr)
1113 {
1114 return (LRESULT)infoPtr->himl;
1115 }
1116
1117
1118 static LRESULT
1119 HEADER_GetItemT (const HEADER_INFO *infoPtr, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1120 {
1121 HEADER_ITEM *lpItem;
1122 UINT mask;
1123
1124 if (!phdi)
1125 return FALSE;
1126
1127 TRACE("[nItem=%d]\n", nItem);
1128
1129 mask = phdi->mask;
1130 if (mask == 0)
1131 return TRUE;
1132
1133 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1134 return FALSE;
1135
1136 if (mask & HDI_UNKNOWN_FIELDS)
1137 {
1138 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask);
1139 mask &= HDI_COMCTL32_4_0_FIELDS;
1140 }
1141
1142 lpItem = &infoPtr->items[nItem];
1143 HEADER_PrepareCallbackItems(infoPtr, nItem, mask);
1144
1145 if (mask & HDI_BITMAP)
1146 phdi->hbm = lpItem->hbm;
1147
1148 if (mask & HDI_FORMAT)
1149 phdi->fmt = lpItem->fmt;
1150
1151 if (mask & HDI_WIDTH)
1152 phdi->cxy = lpItem->cxy;
1153
1154 if (mask & HDI_LPARAM)
1155 phdi->lParam = lpItem->lParam;
1156
1157 if (mask & HDI_IMAGE)
1158 phdi->iImage = lpItem->iImage;
1159
1160 if (mask & HDI_ORDER)
1161 phdi->iOrder = lpItem->iOrder;
1162
1163 if (mask & HDI_TEXT)
1164 {
1165 if (bUnicode)
1166 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax);
1167 else
1168 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax);
1169 }
1170
1171 HEADER_FreeCallbackItems(lpItem);
1172 return TRUE;
1173 }
1174
1175
1176 static inline LRESULT
1177 HEADER_GetItemCount (const HEADER_INFO *infoPtr)
1178 {
1179 return infoPtr->uNumItem;
1180 }
1181
1182
1183 static LRESULT
1184 HEADER_GetItemRect (const HEADER_INFO *infoPtr, INT iItem, LPRECT lpRect)
1185 {
1186 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1187 return FALSE;
1188
1189 lpRect->left = infoPtr->items[iItem].rect.left;
1190 lpRect->right = infoPtr->items[iItem].rect.right;
1191 lpRect->top = infoPtr->items[iItem].rect.top;
1192 lpRect->bottom = infoPtr->items[iItem].rect.bottom;
1193
1194 return TRUE;
1195 }
1196
1197
1198 static LRESULT
1199 HEADER_GetOrderArray(const HEADER_INFO *infoPtr, INT size, LPINT order)
1200 {
1201 if ((UINT)size <infoPtr->uNumItem)
1202 return FALSE;
1203
1204 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT));
1205 return TRUE;
1206 }
1207
1208 /* Returns index of first duplicate 'value' from [0,to) range,
1209 or -1 if there isn't any */
1210 static INT has_duplicate(const INT *array, INT to, INT value)
1211 {
1212 INT i;
1213 for(i = 0; i < to; i++)
1214 if (array[i] == value) return i;
1215 return -1;
1216 }
1217
1218 /* returns next available value from [0,max] not to duplicate in [0,to) */
1219 static INT get_nextvalue(const INT *array, INT to, INT max)
1220 {
1221 INT i;
1222 for(i = 0; i < max; i++)
1223 if (has_duplicate(array, to, i) == -1) return i;
1224 return 0;
1225 }
1226
1227 static LRESULT
1228 HEADER_SetOrderArray(HEADER_INFO *infoPtr, INT size, const INT *order)
1229 {
1230 HEADER_ITEM *lpItem;
1231 INT i;
1232
1233 if ((UINT)size != infoPtr->uNumItem)
1234 return FALSE;
1235
1236 if (TRACE_ON(header))
1237 {
1238 TRACE("count=%d, order array={", size);
1239 for (i = 0; i < size; i++)
1240 TRACE("%d%c", order[i], i != size-1 ? ',' : '}');
1241 TRACE("\n");
1242 }
1243
1244 for (i=0; i<size; i++)
1245 {
1246 if (order[i] >= size || order[i] < 0)
1247 /* on invalid index get next available */
1248 /* FIXME: if i==0 array item is out of range behaviour is
1249 different, see tests */
1250 infoPtr->order[i] = get_nextvalue(infoPtr->order, i, size);
1251 else
1252 {
1253 INT j, dup;
1254
1255 infoPtr->order[i] = order[i];
1256 j = i;
1257 /* remove duplicates */
1258 while ((dup = has_duplicate(infoPtr->order, j, order[j])) != -1)
1259 {
1260 INT next;
1261
1262 next = get_nextvalue(infoPtr->order, j, size);
1263 infoPtr->order[dup] = next;
1264 j--;
1265 }
1266 }
1267 }
1268 /* sync with item data */
1269 for (i=0; i<size; i++)
1270 {
1271 lpItem = &infoPtr->items[infoPtr->order[i]];
1272 lpItem->iOrder = i;
1273 }
1274 HEADER_SetItemBounds(infoPtr);
1275 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1276 return TRUE;
1277 }
1278
1279 static inline LRESULT
1280 HEADER_GetUnicodeFormat (const HEADER_INFO *infoPtr)
1281 {
1282 return (infoPtr->nNotifyFormat == NFR_UNICODE);
1283 }
1284
1285
1286 static LRESULT
1287 HEADER_HitTest (const HEADER_INFO *infoPtr, LPHDHITTESTINFO phti)
1288 {
1289 UINT outside = HHT_NOWHERE | HHT_ABOVE | HHT_BELOW | HHT_TOLEFT | HHT_TORIGHT;
1290
1291 HEADER_InternalHitTest (infoPtr, &phti->pt, &phti->flags, &phti->iItem);
1292
1293 if (phti->flags & outside)
1294 return phti->iItem = -1;
1295 else
1296 return phti->iItem;
1297 }
1298
1299
1300 static LRESULT
1301 HEADER_InsertItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1302 {
1303 HEADER_ITEM *lpItem;
1304 INT iOrder;
1305 UINT i;
1306 UINT copyMask;
1307
1308 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0))
1309 return -1;
1310
1311 if (nItem > infoPtr->uNumItem)
1312 nItem = infoPtr->uNumItem;
1313
1314 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem;
1315 if (iOrder < 0)
1316 iOrder = 0;
1317 else if (infoPtr->uNumItem < iOrder)
1318 iOrder = infoPtr->uNumItem;
1319
1320 infoPtr->uNumItem++;
1321 infoPtr->items = ReAlloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem);
1322 infoPtr->order = ReAlloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem);
1323
1324 /* make space for the new item */
1325 memmove(&infoPtr->items[nItem + 1], &infoPtr->items[nItem],
1326 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM));
1327 memmove(&infoPtr->order[iOrder + 1], &infoPtr->order[iOrder],
1328 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT));
1329
1330 /* update the order array */
1331 infoPtr->order[iOrder] = nItem;
1332 for (i = 0; i < infoPtr->uNumItem; i++)
1333 {
1334 if (i != iOrder && infoPtr->order[i] >= nItem)
1335 infoPtr->order[i]++;
1336 infoPtr->items[infoPtr->order[i]].iOrder = i;
1337 }
1338
1339 lpItem = &infoPtr->items[nItem];
1340 ZeroMemory(lpItem, sizeof(HEADER_ITEM));
1341 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */
1342 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM;
1343 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode);
1344 lpItem->iOrder = iOrder;
1345
1346 /* set automatically some format bits */
1347 if (phdi->mask & HDI_TEXT)
1348 lpItem->fmt |= HDF_STRING;
1349 else
1350 lpItem->fmt &= ~HDF_STRING;
1351
1352 if (lpItem->hbm != NULL)
1353 lpItem->fmt |= HDF_BITMAP;
1354 else
1355 lpItem->fmt &= ~HDF_BITMAP;
1356
1357 if (phdi->mask & HDI_IMAGE)
1358 lpItem->fmt |= HDF_IMAGE;
1359
1360 HEADER_SetItemBounds (infoPtr);
1361 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1362
1363 return nItem;
1364 }
1365
1366
1367 static LRESULT
1368 HEADER_Layout (HEADER_INFO *infoPtr, LPHDLAYOUT lpLayout)
1369 {
1370 lpLayout->pwpos->hwnd = infoPtr->hwndSelf;
1371 lpLayout->pwpos->hwndInsertAfter = 0;
1372 lpLayout->pwpos->x = lpLayout->prc->left;
1373 lpLayout->pwpos->y = lpLayout->prc->top;
1374 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left;
1375 if (infoPtr->dwStyle & HDS_HIDDEN)
1376 lpLayout->pwpos->cy = 0;
1377 else {
1378 lpLayout->pwpos->cy = infoPtr->nHeight;
1379 lpLayout->prc->top += infoPtr->nHeight;
1380 }
1381 lpLayout->pwpos->flags = SWP_NOZORDER;
1382
1383 TRACE("Layout x=%d y=%d cx=%d cy=%d\n",
1384 lpLayout->pwpos->x, lpLayout->pwpos->y,
1385 lpLayout->pwpos->cx, lpLayout->pwpos->cy);
1386
1387 infoPtr->bRectsValid = FALSE;
1388
1389 return TRUE;
1390 }
1391
1392
1393 static LRESULT
1394 HEADER_SetImageList (HEADER_INFO *infoPtr, HIMAGELIST himl)
1395 {
1396 HIMAGELIST himlOld;
1397
1398 TRACE("(himl %p)\n", himl);
1399 himlOld = infoPtr->himl;
1400 infoPtr->himl = himl;
1401
1402 /* FIXME: Refresh needed??? */
1403
1404 return (LRESULT)himlOld;
1405 }
1406
1407
1408 static LRESULT
1409 HEADER_GetBitmapMargin(const HEADER_INFO *infoPtr)
1410 {
1411 return infoPtr->iMargin;
1412 }
1413
1414 static LRESULT
1415 HEADER_SetBitmapMargin(HEADER_INFO *infoPtr, INT iMargin)
1416 {
1417 INT oldMargin = infoPtr->iMargin;
1418
1419 infoPtr->iMargin = iMargin;
1420
1421 return oldMargin;
1422 }
1423
1424 static LRESULT
1425 HEADER_SetItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode)
1426 {
1427 HEADER_ITEM *lpItem;
1428 HDITEMW hdNotify;
1429 void *pvScratch;
1430
1431 if (phdi == NULL)
1432 return FALSE;
1433 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1434 return FALSE;
1435
1436 TRACE("[nItem=%d]\n", nItem);
1437
1438 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch);
1439 if (HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGINGW, nItem, &hdNotify))
1440 {
1441 Free(pvScratch);
1442 return FALSE;
1443 }
1444
1445 lpItem = &infoPtr->items[nItem];
1446 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode);
1447
1448 if (phdi->mask & HDI_ORDER)
1449 if (phdi->iOrder >= 0 && phdi->iOrder < infoPtr->uNumItem)
1450 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder);
1451
1452 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGEDW, nItem, &hdNotify);
1453
1454 HEADER_SetItemBounds (infoPtr);
1455
1456 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1457
1458 Free(pvScratch);
1459 return TRUE;
1460 }
1461
1462 static inline LRESULT
1463 HEADER_SetUnicodeFormat (HEADER_INFO *infoPtr, WPARAM wParam)
1464 {
1465 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE);
1466
1467 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI);
1468
1469 return bTemp;
1470 }
1471
1472
1473 static LRESULT
1474 HEADER_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
1475 {
1476 HEADER_INFO *infoPtr;
1477 TEXTMETRICW tm;
1478 HFONT hOldFont;
1479 HDC hdc;
1480
1481 infoPtr = Alloc (sizeof(HEADER_INFO));
1482 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1483
1484 infoPtr->hwndSelf = hwnd;
1485 infoPtr->hwndNotify = lpcs->hwndParent;
1486 infoPtr->uNumItem = 0;
1487 infoPtr->hFont = 0;
1488 infoPtr->items = 0;
1489 infoPtr->order = 0;
1490 infoPtr->bRectsValid = FALSE;
1491 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1492 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER));
1493 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN));
1494 infoPtr->bPressed = FALSE;
1495 infoPtr->bTracking = FALSE;
1496 infoPtr->dwStyle = lpcs->style;
1497 infoPtr->iMoveItem = 0;
1498 infoPtr->himl = 0;
1499 infoPtr->iHotItem = -1;
1500 infoPtr->iHotDivider = -1;
1501 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
1502 infoPtr->nNotifyFormat =
1503 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
1504
1505 hdc = GetDC (0);
1506 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
1507 GetTextMetricsW (hdc, &tm);
1508 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1509 SelectObject (hdc, hOldFont);
1510 ReleaseDC (0, hdc);
1511
1512 OpenThemeData(hwnd, themeClass);
1513
1514 return 0;
1515 }
1516
1517
1518 static LRESULT
1519 HEADER_Destroy (HEADER_INFO *infoPtr)
1520 {
1521 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf);
1522 CloseThemeData(theme);
1523 return 0;
1524 }
1525
1526 static LRESULT
1527 HEADER_NCDestroy (HEADER_INFO *infoPtr)
1528 {
1529 HEADER_ITEM *lpItem;
1530 INT nItem;
1531
1532 if (infoPtr->items) {
1533 lpItem = infoPtr->items;
1534 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) {
1535 Free(lpItem->pszText);
1536 }
1537 Free (infoPtr->items);
1538 }
1539
1540 Free(infoPtr->order);
1541
1542 SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
1543 Free (infoPtr);
1544
1545 return 0;
1546 }
1547
1548
1549 static inline LRESULT
1550 HEADER_GetFont (const HEADER_INFO *infoPtr)
1551 {
1552 return (LRESULT)infoPtr->hFont;
1553 }
1554
1555
1556 static BOOL
1557 HEADER_IsDragDistance(const HEADER_INFO *infoPtr, const POINT *pt)
1558 {
1559 /* Windows allows for a mouse movement before starting the drag. We use the
1560 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
1561 */
1562 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
1563 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
1564 }
1565
1566 static LRESULT
1567 HEADER_LButtonDblClk (const HEADER_INFO *infoPtr, INT x, INT y)
1568 {
1569 POINT pt;
1570 UINT flags;
1571 INT nItem;
1572
1573 pt.x = x;
1574 pt.y = y;
1575 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1576
1577 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER))
1578 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMDBLCLICKW, nItem, NULL);
1579 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN))
1580 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_DIVIDERDBLCLICKW, nItem, NULL);
1581
1582 return 0;
1583 }
1584
1585
1586 static LRESULT
1587 HEADER_LButtonDown (HEADER_INFO *infoPtr, INT x, INT y)
1588 {
1589 POINT pt;
1590 UINT flags;
1591 INT nItem;
1592 HDC hdc;
1593
1594 pt.x = x;
1595 pt.y = y;
1596 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1597
1598 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) {
1599 SetCapture (infoPtr->hwndSelf);
1600 infoPtr->bCaptured = TRUE;
1601 infoPtr->bPressed = TRUE;
1602 infoPtr->bDragging = FALSE;
1603 infoPtr->iMoveItem = nItem;
1604 infoPtr->ptLButtonDown = pt;
1605
1606 infoPtr->items[nItem].bDown = TRUE;
1607
1608 /* Send WM_CUSTOMDRAW */
1609 hdc = GetDC (infoPtr->hwndSelf);
1610 HEADER_RefreshItem (infoPtr, nItem);
1611 ReleaseDC (infoPtr->hwndSelf, hdc);
1612
1613 TRACE("Pressed item %d!\n", nItem);
1614 }
1615 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) {
1616 INT iCurrWidth = infoPtr->items[nItem].cxy;
1617 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_BEGINTRACKW, nItem, HDI_WIDTH, iCurrWidth))
1618 {
1619 SetCapture (infoPtr->hwndSelf);
1620 infoPtr->bCaptured = TRUE;
1621 infoPtr->bTracking = TRUE;
1622 infoPtr->iMoveItem = nItem;
1623 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x;
1624
1625 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) {
1626 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right;
1627 hdc = GetDC (infoPtr->hwndSelf);
1628 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1629 ReleaseDC (infoPtr->hwndSelf, hdc);
1630 }
1631
1632 TRACE("Begin tracking item %d!\n", nItem);
1633 }
1634 }
1635
1636 return 0;
1637 }
1638
1639
1640 static LRESULT
1641 HEADER_LButtonUp (HEADER_INFO *infoPtr, INT x, INT y)
1642 {
1643 POINT pt;
1644 UINT flags;
1645 INT nItem;
1646 HDC hdc;
1647
1648 pt.x = x;
1649 pt.y = y;
1650 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1651
1652 if (infoPtr->bPressed) {
1653
1654 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1655
1656 if (infoPtr->bDragging)
1657 {
1658 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1659 INT iNewOrder;
1660
1661 ImageList_DragShowNolock(FALSE);
1662 ImageList_EndDrag();
1663
1664 if (infoPtr->iHotDivider == -1)
1665 iNewOrder = -1;
1666 else if (infoPtr->iHotDivider == infoPtr->uNumItem)
1667 iNewOrder = infoPtr->uNumItem-1;
1668 else
1669 {
1670 iNewOrder = HEADER_IndexToOrder(infoPtr, infoPtr->iHotDivider);
1671 if (iNewOrder > lpItem->iOrder)
1672 iNewOrder--;
1673 }
1674
1675 if (iNewOrder != -1 &&
1676 !HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, iNewOrder))
1677 {
1678 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder);
1679 infoPtr->bRectsValid = FALSE;
1680 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1681 }
1682 else
1683 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
1684
1685 infoPtr->bDragging = FALSE;
1686 HEADER_SetHotDivider(infoPtr, FALSE, -1);
1687 }
1688 else
1689 {
1690 hdc = GetDC (infoPtr->hwndSelf);
1691 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem);
1692 ReleaseDC (infoPtr->hwndSelf, hdc);
1693
1694 if (!(infoPtr->dwStyle & HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
1695 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCLICKW, infoPtr->iMoveItem, NULL);
1696 }
1697
1698 TRACE("Released item %d!\n", infoPtr->iMoveItem);
1699 infoPtr->bPressed = FALSE;
1700 }
1701 else if (infoPtr->bTracking) {
1702 INT iNewWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
1703 if (iNewWidth < 0)
1704 iNewWidth = 0;
1705 TRACE("End tracking item %d!\n", infoPtr->iMoveItem);
1706 infoPtr->bTracking = FALSE;
1707
1708 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1709
1710 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) {
1711 hdc = GetDC (infoPtr->hwndSelf);
1712 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1713 ReleaseDC (infoPtr->hwndSelf, hdc);
1714 }
1715
1716 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth))
1717 {
1718 infoPtr->items[infoPtr->iMoveItem].cxy = iNewWidth;
1719 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth);
1720 }
1721
1722 HEADER_SetItemBounds (infoPtr);
1723 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1724 }
1725
1726 if (infoPtr->bCaptured) {
1727 infoPtr->bCaptured = FALSE;
1728 ReleaseCapture ();
1729 HEADER_SendSimpleNotify (infoPtr, NM_RELEASEDCAPTURE);
1730 }
1731
1732 return 0;
1733 }
1734
1735
1736 static LRESULT
1737 HEADER_NotifyFormat (HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1738 {
1739 switch (lParam)
1740 {
1741 case NF_QUERY:
1742 return infoPtr->nNotifyFormat;
1743
1744 case NF_REQUERY:
1745 infoPtr->nNotifyFormat =
1746 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT,
1747 (WPARAM)infoPtr->hwndSelf, NF_QUERY);
1748 return infoPtr->nNotifyFormat;
1749 }
1750
1751 return 0;
1752 }
1753
1754 static LRESULT
1755 HEADER_MouseLeave (HEADER_INFO *infoPtr)
1756 {
1757 /* Reset hot-tracked item when mouse leaves control. */
1758 INT oldHotItem = infoPtr->iHotItem;
1759 HDC hdc = GetDC (infoPtr->hwndSelf);
1760
1761 infoPtr->iHotItem = -1;
1762 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem);
1763 ReleaseDC (infoPtr->hwndSelf, hdc);
1764
1765 return 0;
1766 }
1767
1768
1769 static LRESULT
1770 HEADER_MouseMove (HEADER_INFO *infoPtr, LPARAM lParam)
1771 {
1772 POINT pt;
1773 UINT flags;
1774 INT nItem, nWidth;
1775 HDC hdc;
1776 /* With theming, hottracking is always enabled */
1777 BOOL hotTrackEnabled =
1778 ((infoPtr->dwStyle & HDS_BUTTONS) && (infoPtr->dwStyle & HDS_HOTTRACK))
1779 || (GetWindowTheme (infoPtr->hwndSelf) != NULL);
1780 INT oldHotItem = infoPtr->iHotItem;
1781
1782 pt.x = (INT)(SHORT)LOWORD(lParam);
1783 pt.y = (INT)(SHORT)HIWORD(lParam);
1784 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1785
1786 if (hotTrackEnabled) {
1787 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN))
1788 infoPtr->iHotItem = nItem;
1789 else
1790 infoPtr->iHotItem = -1;
1791 }
1792
1793 if (infoPtr->bCaptured) {
1794 /* check if we should drag the header */
1795 if (infoPtr->bPressed && !infoPtr->bDragging && (infoPtr->dwStyle & HDS_DRAGDROP)
1796 && HEADER_IsDragDistance(infoPtr, &pt))
1797 {
1798 if (!HEADER_SendNotifyWithHDItemT(infoPtr, HDN_BEGINDRAG, infoPtr->iMoveItem, NULL))
1799 {
1800 HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(infoPtr, infoPtr->iMoveItem);
1801 if (hDragItem != NULL)
1802 {
1803 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1804 TRACE("Starting item drag\n");
1805 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
1806 ImageList_DragShowNolock(TRUE);
1807 ImageList_Destroy(hDragItem);
1808 infoPtr->bDragging = TRUE;
1809 }
1810 }
1811 }
1812
1813 if (infoPtr->bDragging)
1814 {
1815 POINT drag;
1816 drag.x = pt.x;
1817 drag.y = 0;
1818 ClientToScreen(infoPtr->hwndSelf, &drag);
1819 ImageList_DragMove(drag.x, drag.y);
1820 HEADER_SetHotDivider(infoPtr, TRUE, lParam);
1821 }
1822
1823 if (infoPtr->bPressed && !infoPtr->bDragging) {
1824 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
1825 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
1826 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
1827 else
1828 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1829 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) {
1830 hdc = GetDC (infoPtr->hwndSelf);
1831 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem);
1832 ReleaseDC (infoPtr->hwndSelf, hdc);
1833 }
1834
1835 TRACE("Moving pressed item %d!\n", infoPtr->iMoveItem);
1836 }
1837 else if (infoPtr->bTracking) {
1838 if (infoPtr->dwStyle & HDS_FULLDRAG) {
1839 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1840 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
1841 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, nWidth))
1842 {
1843 INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
1844 RECT rcClient;
1845 RECT rcScroll;
1846
1847 if (nWidth < 0) nWidth = 0;
1848 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1849 HEADER_SetItemBounds(infoPtr);
1850
1851 GetClientRect(infoPtr->hwndSelf, &rcClient);
1852 rcScroll = rcClient;
1853 rcScroll.left = lpItem->rect.left + nOldWidth;
1854 ScrollWindowEx(infoPtr->hwndSelf, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
1855 InvalidateRect(infoPtr->hwndSelf, &lpItem->rect, FALSE);
1856 UpdateWindow(infoPtr->hwndSelf);
1857
1858 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, nWidth);
1859 }
1860 }
1861 else {
1862 INT iTrackWidth;
1863 hdc = GetDC (infoPtr->hwndSelf);
1864 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1865 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset;
1866 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left)
1867 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left;
1868 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack);
1869 ReleaseDC (infoPtr->hwndSelf, hdc);
1870 iTrackWidth = infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left;
1871 /* FIXME: should stop tracking if HDN_TRACK returns TRUE */
1872 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, iTrackWidth);
1873 }
1874
1875 TRACE("Tracking item %d!\n", infoPtr->iMoveItem);
1876 }
1877 }
1878
1879 if (hotTrackEnabled) {
1880 TRACKMOUSEEVENT tme;
1881 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
1882 hdc = GetDC (infoPtr->hwndSelf);
1883 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem);
1884 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (infoPtr, infoPtr->iHotItem);
1885 ReleaseDC (infoPtr->hwndSelf, hdc);
1886 }
1887 tme.cbSize = sizeof( tme );
1888 tme.dwFlags = TME_LEAVE;
1889 tme.hwndTrack = infoPtr->hwndSelf;
1890 TrackMouseEvent( &tme );
1891 }
1892
1893 return 0;
1894 }
1895
1896
1897 static LRESULT
1898 HEADER_Paint (HEADER_INFO *infoPtr, HDC hdcParam)
1899 {
1900 HDC hdc;
1901 PAINTSTRUCT ps;
1902
1903 hdc = hdcParam==0 ? BeginPaint (infoPtr->hwndSelf, &ps) : hdcParam;
1904 HEADER_Refresh (infoPtr, hdc);
1905 if(!hdcParam)
1906 EndPaint (infoPtr->hwndSelf, &ps);
1907 return 0;
1908 }
1909
1910
1911 static LRESULT
1912 HEADER_RButtonUp (HEADER_INFO *infoPtr, INT x, INT y)
1913 {
1914 BOOL bRet;
1915 POINT pt;
1916
1917 pt.x = x;
1918 pt.y = y;
1919
1920 /* Send a Notify message */
1921 bRet = HEADER_SendSimpleNotify (infoPtr, NM_RCLICK);
1922
1923 /* Change to screen coordinate for WM_CONTEXTMENU */
1924 ClientToScreen(infoPtr->hwndSelf, &pt);
1925
1926 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
1927 SendMessageW( infoPtr->hwndSelf, WM_CONTEXTMENU, (WPARAM) infoPtr->hwndSelf, MAKELPARAM(pt.x, pt.y));
1928
1929 return bRet;
1930 }
1931
1932
1933 static LRESULT
1934 HEADER_SetCursor (HEADER_INFO *infoPtr, LPARAM lParam)
1935 {
1936 POINT pt;
1937 UINT flags;
1938 INT nItem;
1939
1940 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam));
1941
1942 GetCursorPos (&pt);
1943 ScreenToClient (infoPtr->hwndSelf, &pt);
1944
1945 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem);
1946
1947 if (flags == HHT_ONDIVIDER)
1948 SetCursor (infoPtr->hcurDivider);
1949 else if (flags == HHT_ONDIVOPEN)
1950 SetCursor (infoPtr->hcurDivopen);
1951 else
1952 SetCursor (infoPtr->hcurArrow);
1953
1954 return 0;
1955 }
1956
1957
1958 static LRESULT
1959 HEADER_SetFont (HEADER_INFO *infoPtr, HFONT hFont, WORD Redraw)
1960 {
1961 TEXTMETRICW tm;
1962 HFONT hOldFont;
1963 HDC hdc;
1964
1965 infoPtr->hFont = hFont;
1966
1967 hdc = GetDC (0);
1968 hOldFont = SelectObject (hdc, infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT));
1969 GetTextMetricsW (hdc, &tm);
1970 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1971 SelectObject (hdc, hOldFont);
1972 ReleaseDC (0, hdc);
1973
1974 infoPtr->bRectsValid = FALSE;
1975
1976 if (Redraw) {
1977 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
1978 }
1979
1980 return 0;
1981 }
1982
1983 static LRESULT HEADER_SetRedraw(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
1984 {
1985 /* ignoring the InvalidateRect calls is handled by user32. But some apps expect
1986 * that we invalidate the header and this has to be done manually */
1987 LRESULT ret;
1988
1989 ret = DefWindowProcW(infoPtr->hwndSelf, WM_SETREDRAW, wParam, lParam);
1990 if (wParam)
1991 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
1992 return ret;
1993 }
1994
1995 static INT HEADER_StyleChanged(HEADER_INFO *infoPtr, WPARAM wStyleType,
1996 const STYLESTRUCT *lpss)
1997 {
1998 TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
1999 wStyleType, lpss->styleOld, lpss->styleNew);
2000
2001 if (wStyleType != GWL_STYLE) return 0;
2002
2003 infoPtr->dwStyle = lpss->styleNew;
2004
2005 return 0;
2006 }
2007
2008 /* Update the theme handle after a theme change */
2009 static LRESULT HEADER_ThemeChanged(const HEADER_INFO *infoPtr)
2010 {
2011 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf);
2012 CloseThemeData(theme);
2013 OpenThemeData(infoPtr->hwndSelf, themeClass);
2014 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
2015 return 0;
2016 }
2017
2018
2019 static LRESULT WINAPI
2020 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
2021 {
2022 HEADER_INFO *infoPtr = (HEADER_INFO *)GetWindowLongPtrW(hwnd, 0);
2023
2024 TRACE("hwnd=%p msg=%x wparam=%lx lParam=%lx\n", hwnd, msg, wParam, lParam);
2025 if (!infoPtr && (msg != WM_CREATE))
2026 return DefWindowProcW (hwnd, msg, wParam, lParam);
2027 switch (msg) {
2028 /* case HDM_CLEARFILTER: */
2029
2030 case HDM_CREATEDRAGIMAGE:
2031 return HEADER_CreateDragImage (infoPtr, (INT)wParam);
2032
2033 case HDM_DELETEITEM:
2034 return HEADER_DeleteItem (infoPtr, (INT)wParam);
2035
2036 /* case HDM_EDITFILTER: */
2037
2038 case HDM_GETBITMAPMARGIN:
2039 return HEADER_GetBitmapMargin(infoPtr);
2040
2041 case HDM_GETIMAGELIST:
2042 return HEADER_GetImageList (infoPtr);
2043
2044 case HDM_GETITEMA:
2045 case HDM_GETITEMW:
2046 return HEADER_GetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW);
2047
2048 case HDM_GETITEMCOUNT:
2049 return HEADER_GetItemCount (infoPtr);
2050
2051 case HDM_GETITEMRECT:
2052 return HEADER_GetItemRect (infoPtr, (INT)wParam, (LPRECT)lParam);
2053
2054 case HDM_GETORDERARRAY:
2055 return HEADER_GetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam);
2056
2057 case HDM_GETUNICODEFORMAT:
2058 return HEADER_GetUnicodeFormat (infoPtr);
2059
2060 case HDM_HITTEST:
2061 return HEADER_HitTest (infoPtr, (LPHDHITTESTINFO)lParam);
2062
2063 case HDM_INSERTITEMA:
2064 case HDM_INSERTITEMW:
2065 return HEADER_InsertItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW);
2066
2067 case HDM_LAYOUT:
2068 return HEADER_Layout (infoPtr, (LPHDLAYOUT)lParam);
2069
2070 case HDM_ORDERTOINDEX:
2071 return HEADER_OrderToIndex(infoPtr, (INT)wParam);
2072
2073 case HDM_SETBITMAPMARGIN:
2074 return HEADER_SetBitmapMargin(infoPtr, (INT)wParam);
2075
2076 /* case HDM_SETFILTERCHANGETIMEOUT: */
2077
2078 case HDM_SETHOTDIVIDER:
2079 return HEADER_SetHotDivider(infoPtr, wParam, lParam);
2080
2081 case HDM_SETIMAGELIST:
2082 return HEADER_SetImageList (infoPtr, (HIMAGELIST)lParam);
2083
2084 case HDM_SETITEMA:
2085 case HDM_SETITEMW:
2086 return HEADER_SetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW);
2087
2088 case HDM_SETORDERARRAY:
2089 return HEADER_SetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam);
2090
2091 case HDM_SETUNICODEFORMAT:
2092 return HEADER_SetUnicodeFormat (infoPtr, wParam);
2093
2094 case WM_CREATE:
2095 return HEADER_Create (hwnd, (LPCREATESTRUCTW)lParam);
2096
2097 case WM_DESTROY:
2098 return HEADER_Destroy (infoPtr);
2099
2100 case WM_NCDESTROY:
2101 return HEADER_NCDestroy (infoPtr);
2102
2103 case WM_ERASEBKGND:
2104 return 1;
2105
2106 case WM_GETDLGCODE:
2107 return DLGC_WANTTAB | DLGC_WANTARROWS;
2108
2109 case WM_GETFONT:
2110 return HEADER_GetFont (infoPtr);
2111
2112 case WM_LBUTTONDBLCLK:
2113 return HEADER_LButtonDblClk (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2114
2115 case WM_LBUTTONDOWN:
2116 return HEADER_LButtonDown (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2117
2118 case WM_LBUTTONUP:
2119 return HEADER_LButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2120
2121 case WM_MOUSELEAVE:
2122 return HEADER_MouseLeave (infoPtr);
2123
2124 case WM_MOUSEMOVE:
2125 return HEADER_MouseMove (infoPtr, lParam);
2126
2127 case WM_NOTIFYFORMAT:
2128 return HEADER_NotifyFormat (infoPtr, wParam, lParam);
2129
2130 case WM_SIZE:
2131 return HEADER_Size (infoPtr);
2132
2133 case WM_THEMECHANGED:
2134 return HEADER_ThemeChanged (infoPtr);
2135
2136 case WM_PRINTCLIENT:
2137 case WM_PAINT:
2138 return HEADER_Paint (infoPtr, (HDC)wParam);
2139
2140 case WM_RBUTTONUP:
2141 return HEADER_RButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
2142
2143 case WM_SETCURSOR:
2144 return HEADER_SetCursor (infoPtr, lParam);
2145
2146 case WM_SETFONT:
2147 return HEADER_SetFont (infoPtr, (HFONT)wParam, (WORD)lParam);
2148
2149 case WM_SETREDRAW:
2150 return HEADER_SetRedraw(infoPtr, wParam, lParam);
2151
2152 case WM_STYLECHANGED:
2153 return HEADER_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
2154
2155 case WM_SYSCOLORCHANGE:
2156 COMCTL32_RefreshSysColors();
2157 return 0;
2158
2159 default:
2160 if ((msg >= WM_USER) && (msg < WM_APP) && !COMCTL32_IsReflectedMessage(msg))
2161 ERR("unknown msg %04x wp=%04lx lp=%08lx\n",
2162 msg, wParam, lParam );
2163 return DefWindowProcW(hwnd, msg, wParam, lParam);
2164 }
2165 }
2166
2167
2168 VOID
2169 HEADER_Register (void)
2170 {
2171 WNDCLASSW wndClass;
2172
2173 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2174 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
2175 wndClass.lpfnWndProc = HEADER_WindowProc;
2176 wndClass.cbClsExtra = 0;
2177 wndClass.cbWndExtra = sizeof(HEADER_INFO *);
2178 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2179 wndClass.lpszClassName = WC_HEADERW;
2180
2181 RegisterClassW (&wndClass);
2182 }
2183
2184
2185 VOID
2186 HEADER_Unregister (void)
2187 {
2188 UnregisterClassW (WC_HEADERW, NULL);
2189 }
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