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[reactos.git] / reactos / dll / win32 / comctl32 / pager.c
1 /*
2 * Pager control
3 *
4 * Copyright 1998, 1999 Eric Kohl
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 *
20 * NOTES
21 *
22 * This code was audited for completeness against the documented features
23 * of Comctl32.dll version 6.0 on Sep. 18, 2004, by Robert Shearman.
24 *
25 * Unless otherwise noted, we believe this code to be complete, as per
26 * the specification mentioned above.
27 * If you discover missing features or bugs please note them below.
28 *
29 * TODO:
30 * Implement repetitive button press.
31 * Adjust arrow size relative to size of button.
32 * Allow border size changes.
33 * Styles:
34 * PGS_DRAGNDROP
35 * Notifications:
36 * PGN_HOTITEMCHANGE
37 * Messages:
38 * WM_PRINT and/or WM_PRINTCLIENT
39 *
40 * TESTING:
41 * Tested primarily with the controlspy Pager application.
42 * Susan Farley (susan@codeweavers.com)
43 *
44 * IMPLEMENTATION NOTES:
45 * This control uses WM_NCPAINT instead of WM_PAINT to paint itself
46 * as we need to scroll a child window. In order to do this we move
47 * the child window in the control's client area, using the clipping
48 * region that is automatically set around the client area. As the
49 * entire client area now consists of the child window, we must
50 * allocate space (WM_NCCALCSIZE) for the buttons and draw them as
51 * a non-client area (WM_NCPAINT).
52 * Robert Shearman <rob@codeweavers.com>
53 */
54
55 #include <stdarg.h>
56 #include <string.h>
57 #include "windef.h"
58 #include "winbase.h"
59 #include "wingdi.h"
60 #include "winuser.h"
61 #include "winnls.h"
62 #include "commctrl.h"
63 #include "comctl32.h"
64 #include "wine/debug.h"
65
66 WINE_DEFAULT_DEBUG_CHANNEL(pager);
67
68 typedef struct
69 {
70 HWND hwndSelf; /* handle of the control wnd */
71 HWND hwndChild; /* handle of the contained wnd */
72 HWND hwndNotify; /* handle of the parent wnd */
73 DWORD dwStyle; /* styles for this control */
74 COLORREF clrBk; /* background color */
75 INT nBorder; /* border size for the control */
76 INT nButtonSize;/* size of the pager btns */
77 INT nPos; /* scroll position */
78 INT nWidth; /* from child wnd's response to PGN_CALCSIZE */
79 INT nHeight; /* from child wnd's response to PGN_CALCSIZE */
80 BOOL bForward; /* forward WM_MOUSEMOVE msgs to the contained wnd */
81 BOOL bCapture; /* we have captured the mouse */
82 INT TLbtnState; /* state of top or left btn */
83 INT BRbtnState; /* state of bottom or right btn */
84 INT direction; /* direction of the scroll, (e.g. PGF_SCROLLUP) */
85 } PAGER_INFO;
86
87 #define MIN_ARROW_WIDTH 8
88 #define MIN_ARROW_HEIGHT 5
89
90 #define TIMERID1 1
91 #define TIMERID2 2
92 #define INITIAL_DELAY 500
93 #define REPEAT_DELAY 50
94
95 static void
96 PAGER_GetButtonRects(const PAGER_INFO* infoPtr, RECT* prcTopLeft, RECT* prcBottomRight, BOOL bClientCoords)
97 {
98 RECT rcWindow;
99 GetWindowRect (infoPtr->hwndSelf, &rcWindow);
100
101 if (bClientCoords)
102 MapWindowPoints( 0, infoPtr->hwndSelf, (POINT *)&rcWindow, 2 );
103 else
104 OffsetRect(&rcWindow, -rcWindow.left, -rcWindow.top);
105
106 *prcTopLeft = *prcBottomRight = rcWindow;
107 if (infoPtr->dwStyle & PGS_HORZ)
108 {
109 prcTopLeft->right = prcTopLeft->left + infoPtr->nButtonSize;
110 prcBottomRight->left = prcBottomRight->right - infoPtr->nButtonSize;
111 }
112 else
113 {
114 prcTopLeft->bottom = prcTopLeft->top + infoPtr->nButtonSize;
115 prcBottomRight->top = prcBottomRight->bottom - infoPtr->nButtonSize;
116 }
117 }
118
119 /* the horizontal arrows are:
120 *
121 * 01234 01234
122 * 1 * *
123 * 2 ** **
124 * 3*** ***
125 * 4*** ***
126 * 5 ** **
127 * 6 * *
128 * 7
129 *
130 */
131 static void
132 PAGER_DrawHorzArrow (HDC hdc, RECT r, INT colorRef, BOOL left)
133 {
134 INT x, y, w, h;
135 HPEN hPen, hOldPen;
136
137 w = r.right - r.left + 1;
138 h = r.bottom - r.top + 1;
139 if ((h < MIN_ARROW_WIDTH) || (w < MIN_ARROW_HEIGHT))
140 return; /* refuse to draw partial arrow */
141
142 if (!(hPen = CreatePen( PS_SOLID, 1, GetSysColor( colorRef )))) return;
143 hOldPen = SelectObject ( hdc, hPen );
144 if (left)
145 {
146 x = r.left + ((w - MIN_ARROW_HEIGHT) / 2) + 3;
147 y = r.top + ((h - MIN_ARROW_WIDTH) / 2) + 1;
148 MoveToEx (hdc, x, y, NULL);
149 LineTo (hdc, x--, y+5); y++;
150 MoveToEx (hdc, x, y, NULL);
151 LineTo (hdc, x--, y+3); y++;
152 MoveToEx (hdc, x, y, NULL);
153 LineTo (hdc, x, y+1);
154 }
155 else
156 {
157 x = r.left + ((w - MIN_ARROW_HEIGHT) / 2) + 1;
158 y = r.top + ((h - MIN_ARROW_WIDTH) / 2) + 1;
159 MoveToEx (hdc, x, y, NULL);
160 LineTo (hdc, x++, y+5); y++;
161 MoveToEx (hdc, x, y, NULL);
162 LineTo (hdc, x++, y+3); y++;
163 MoveToEx (hdc, x, y, NULL);
164 LineTo (hdc, x, y+1);
165 }
166
167 SelectObject( hdc, hOldPen );
168 DeleteObject( hPen );
169 }
170
171 /* the vertical arrows are:
172 *
173 * 01234567 01234567
174 * 1****** **
175 * 2 **** ****
176 * 3 ** ******
177 * 4
178 *
179 */
180 static void
181 PAGER_DrawVertArrow (HDC hdc, RECT r, INT colorRef, BOOL up)
182 {
183 INT x, y, w, h;
184 HPEN hPen, hOldPen;
185
186 w = r.right - r.left + 1;
187 h = r.bottom - r.top + 1;
188 if ((h < MIN_ARROW_WIDTH) || (w < MIN_ARROW_HEIGHT))
189 return; /* refuse to draw partial arrow */
190
191 if (!(hPen = CreatePen( PS_SOLID, 1, GetSysColor( colorRef )))) return;
192 hOldPen = SelectObject ( hdc, hPen );
193 if (up)
194 {
195 x = r.left + ((w - MIN_ARROW_HEIGHT) / 2) + 1;
196 y = r.top + ((h - MIN_ARROW_WIDTH) / 2) + 3;
197 MoveToEx (hdc, x, y, NULL);
198 LineTo (hdc, x+5, y--); x++;
199 MoveToEx (hdc, x, y, NULL);
200 LineTo (hdc, x+3, y--); x++;
201 MoveToEx (hdc, x, y, NULL);
202 LineTo (hdc, x+1, y);
203 }
204 else
205 {
206 x = r.left + ((w - MIN_ARROW_HEIGHT) / 2) + 1;
207 y = r.top + ((h - MIN_ARROW_WIDTH) / 2) + 1;
208 MoveToEx (hdc, x, y, NULL);
209 LineTo (hdc, x+5, y++); x++;
210 MoveToEx (hdc, x, y, NULL);
211 LineTo (hdc, x+3, y++); x++;
212 MoveToEx (hdc, x, y, NULL);
213 LineTo (hdc, x+1, y);
214 }
215
216 SelectObject( hdc, hOldPen );
217 DeleteObject( hPen );
218 }
219
220 static void
221 PAGER_DrawButton(HDC hdc, COLORREF clrBk, RECT arrowRect,
222 BOOL horz, BOOL topLeft, INT btnState)
223 {
224 HBRUSH hBrush, hOldBrush;
225 RECT rc = arrowRect;
226
227 TRACE("arrowRect = %s, btnState = %d\n", wine_dbgstr_rect(&arrowRect), btnState);
228
229 if (btnState == PGF_INVISIBLE)
230 return;
231
232 if ((rc.right - rc.left <= 0) || (rc.bottom - rc.top <= 0))
233 return;
234
235 hBrush = CreateSolidBrush(clrBk);
236 hOldBrush = SelectObject(hdc, hBrush);
237
238 FillRect(hdc, &rc, hBrush);
239
240 if (btnState == PGF_HOT)
241 {
242 DrawEdge( hdc, &rc, BDR_RAISEDINNER, BF_RECT);
243 if (horz)
244 PAGER_DrawHorzArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
245 else
246 PAGER_DrawVertArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
247 }
248 else if (btnState == PGF_NORMAL)
249 {
250 DrawEdge (hdc, &rc, BDR_OUTER, BF_FLAT);
251 if (horz)
252 PAGER_DrawHorzArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
253 else
254 PAGER_DrawVertArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
255 }
256 else if (btnState == PGF_DEPRESSED)
257 {
258 DrawEdge( hdc, &rc, BDR_SUNKENOUTER, BF_RECT);
259 if (horz)
260 PAGER_DrawHorzArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
261 else
262 PAGER_DrawVertArrow(hdc, rc, COLOR_WINDOWFRAME, topLeft);
263 }
264 else if (btnState == PGF_GRAYED)
265 {
266 DrawEdge (hdc, &rc, BDR_OUTER, BF_FLAT);
267 if (horz)
268 {
269 PAGER_DrawHorzArrow(hdc, rc, COLOR_3DHIGHLIGHT, topLeft);
270 rc.left++, rc.top++; rc.right++, rc.bottom++;
271 PAGER_DrawHorzArrow(hdc, rc, COLOR_3DSHADOW, topLeft);
272 }
273 else
274 {
275 PAGER_DrawVertArrow(hdc, rc, COLOR_3DHIGHLIGHT, topLeft);
276 rc.left++, rc.top++; rc.right++, rc.bottom++;
277 PAGER_DrawVertArrow(hdc, rc, COLOR_3DSHADOW, topLeft);
278 }
279 }
280
281 SelectObject( hdc, hOldBrush );
282 DeleteObject(hBrush);
283 }
284
285 /* << PAGER_GetDropTarget >> */
286
287 static inline LRESULT
288 PAGER_ForwardMouse (PAGER_INFO* infoPtr, BOOL bFwd)
289 {
290 TRACE("[%p]\n", infoPtr->hwndSelf);
291
292 infoPtr->bForward = bFwd;
293
294 return 0;
295 }
296
297 static inline LRESULT
298 PAGER_GetButtonState (const PAGER_INFO* infoPtr, INT btn)
299 {
300 LRESULT btnState = PGF_INVISIBLE;
301 TRACE("[%p]\n", infoPtr->hwndSelf);
302
303 if (btn == PGB_TOPORLEFT)
304 btnState = infoPtr->TLbtnState;
305 else if (btn == PGB_BOTTOMORRIGHT)
306 btnState = infoPtr->BRbtnState;
307
308 return btnState;
309 }
310
311
312 static inline INT
313 PAGER_GetPos(const PAGER_INFO *infoPtr)
314 {
315 TRACE("[%p] returns %d\n", infoPtr->hwndSelf, infoPtr->nPos);
316 return infoPtr->nPos;
317 }
318
319 static inline INT
320 PAGER_GetButtonSize(const PAGER_INFO *infoPtr)
321 {
322 TRACE("[%p] returns %d\n", infoPtr->hwndSelf, infoPtr->nButtonSize);
323 return infoPtr->nButtonSize;
324 }
325
326 static inline INT
327 PAGER_GetBorder(const PAGER_INFO *infoPtr)
328 {
329 TRACE("[%p] returns %d\n", infoPtr->hwndSelf, infoPtr->nBorder);
330 return infoPtr->nBorder;
331 }
332
333 static inline COLORREF
334 PAGER_GetBkColor(const PAGER_INFO *infoPtr)
335 {
336 TRACE("[%p] returns %06x\n", infoPtr->hwndSelf, infoPtr->clrBk);
337 return infoPtr->clrBk;
338 }
339
340 static void
341 PAGER_CalcSize (const PAGER_INFO *infoPtr, INT* size, BOOL getWidth)
342 {
343 NMPGCALCSIZE nmpgcs;
344 ZeroMemory (&nmpgcs, sizeof (NMPGCALCSIZE));
345 nmpgcs.hdr.hwndFrom = infoPtr->hwndSelf;
346 nmpgcs.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
347 nmpgcs.hdr.code = PGN_CALCSIZE;
348 nmpgcs.dwFlag = getWidth ? PGF_CALCWIDTH : PGF_CALCHEIGHT;
349 nmpgcs.iWidth = getWidth ? *size : 0;
350 nmpgcs.iHeight = getWidth ? 0 : *size;
351 SendMessageW (infoPtr->hwndNotify, WM_NOTIFY, nmpgcs.hdr.idFrom, (LPARAM)&nmpgcs);
352
353 *size = getWidth ? nmpgcs.iWidth : nmpgcs.iHeight;
354
355 TRACE("[%p] PGN_CALCSIZE returns %s=%d\n", infoPtr->hwndSelf,
356 getWidth ? "width" : "height", *size);
357 }
358
359 static void
360 PAGER_PositionChildWnd(PAGER_INFO* infoPtr)
361 {
362 if (infoPtr->hwndChild)
363 {
364 RECT rcClient;
365 int nPos = infoPtr->nPos;
366
367 /* compensate for a grayed btn, which will soon become invisible */
368 if (infoPtr->TLbtnState == PGF_GRAYED)
369 nPos += infoPtr->nButtonSize;
370
371 GetClientRect(infoPtr->hwndSelf, &rcClient);
372
373 if (infoPtr->dwStyle & PGS_HORZ)
374 {
375 int wndSize = max(0, rcClient.right - rcClient.left);
376 if (infoPtr->nWidth < wndSize)
377 infoPtr->nWidth = wndSize;
378
379 TRACE("[%p] SWP %dx%d at (%d,%d)\n", infoPtr->hwndSelf,
380 infoPtr->nWidth, infoPtr->nHeight,
381 -nPos, 0);
382 SetWindowPos(infoPtr->hwndChild, 0,
383 -nPos, 0,
384 infoPtr->nWidth, infoPtr->nHeight,
385 SWP_NOZORDER);
386 }
387 else
388 {
389 int wndSize = max(0, rcClient.bottom - rcClient.top);
390 if (infoPtr->nHeight < wndSize)
391 infoPtr->nHeight = wndSize;
392
393 TRACE("[%p] SWP %dx%d at (%d,%d)\n", infoPtr->hwndSelf,
394 infoPtr->nWidth, infoPtr->nHeight,
395 0, -nPos);
396 SetWindowPos(infoPtr->hwndChild, 0,
397 0, -nPos,
398 infoPtr->nWidth, infoPtr->nHeight,
399 SWP_NOZORDER);
400 }
401
402 InvalidateRect(infoPtr->hwndChild, NULL, TRUE);
403 }
404 }
405
406 static INT
407 PAGER_GetScrollRange(PAGER_INFO* infoPtr)
408 {
409 INT scrollRange = 0;
410
411 if (infoPtr->hwndChild)
412 {
413 INT wndSize, childSize;
414 RECT wndRect;
415 GetWindowRect(infoPtr->hwndSelf, &wndRect);
416
417 if (infoPtr->dwStyle & PGS_HORZ)
418 {
419 wndSize = wndRect.right - wndRect.left;
420 PAGER_CalcSize(infoPtr, &infoPtr->nWidth, TRUE);
421 childSize = infoPtr->nWidth;
422 }
423 else
424 {
425 wndSize = wndRect.bottom - wndRect.top;
426 PAGER_CalcSize(infoPtr, &infoPtr->nHeight, FALSE);
427 childSize = infoPtr->nHeight;
428 }
429
430 TRACE("childSize = %d, wndSize = %d\n", childSize, wndSize);
431 if (childSize > wndSize)
432 scrollRange = childSize - wndSize + infoPtr->nButtonSize;
433 }
434
435 TRACE("[%p] returns %d\n", infoPtr->hwndSelf, scrollRange);
436 return scrollRange;
437 }
438
439 static void
440 PAGER_UpdateBtns(PAGER_INFO *infoPtr, INT scrollRange, BOOL hideGrayBtns)
441 {
442 BOOL resizeClient;
443 BOOL repaintBtns;
444 INT oldTLbtnState = infoPtr->TLbtnState;
445 INT oldBRbtnState = infoPtr->BRbtnState;
446 POINT pt;
447 RECT rcTopLeft, rcBottomRight;
448
449 /* get button rects */
450 PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, FALSE);
451
452 GetCursorPos(&pt);
453
454 /* update states based on scroll position */
455 if (infoPtr->nPos > 0)
456 {
457 if (infoPtr->TLbtnState == PGF_INVISIBLE || infoPtr->TLbtnState == PGF_GRAYED)
458 infoPtr->TLbtnState = PGF_NORMAL;
459 }
460 else if (PtInRect(&rcTopLeft, pt))
461 infoPtr->TLbtnState = PGF_GRAYED;
462 else
463 infoPtr->TLbtnState = PGF_INVISIBLE;
464
465 if (scrollRange <= 0)
466 {
467 infoPtr->TLbtnState = PGF_INVISIBLE;
468 infoPtr->BRbtnState = PGF_INVISIBLE;
469 }
470 else if (infoPtr->nPos < scrollRange)
471 {
472 if (infoPtr->BRbtnState == PGF_INVISIBLE || infoPtr->BRbtnState == PGF_GRAYED)
473 infoPtr->BRbtnState = PGF_NORMAL;
474 }
475 else if (PtInRect(&rcBottomRight, pt))
476 infoPtr->BRbtnState = PGF_GRAYED;
477 else
478 infoPtr->BRbtnState = PGF_INVISIBLE;
479
480 /* only need to resize when entering or leaving PGF_INVISIBLE state */
481 resizeClient =
482 ((oldTLbtnState == PGF_INVISIBLE) != (infoPtr->TLbtnState == PGF_INVISIBLE)) ||
483 ((oldBRbtnState == PGF_INVISIBLE) != (infoPtr->BRbtnState == PGF_INVISIBLE));
484 /* initiate NCCalcSize to resize client wnd if necessary */
485 if (resizeClient)
486 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
487 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
488 SWP_NOZORDER | SWP_NOACTIVATE);
489
490 /* repaint when changing any state */
491 repaintBtns = (oldTLbtnState != infoPtr->TLbtnState) ||
492 (oldBRbtnState != infoPtr->BRbtnState);
493 if (repaintBtns)
494 SendMessageW(infoPtr->hwndSelf, WM_NCPAINT, 0, 0);
495 }
496
497 static LRESULT
498 PAGER_SetPos(PAGER_INFO* infoPtr, INT newPos, BOOL fromBtnPress)
499 {
500 INT scrollRange = PAGER_GetScrollRange(infoPtr);
501 INT oldPos = infoPtr->nPos;
502
503 if ((scrollRange <= 0) || (newPos < 0))
504 infoPtr->nPos = 0;
505 else if (newPos > scrollRange)
506 infoPtr->nPos = scrollRange;
507 else
508 infoPtr->nPos = newPos;
509
510 TRACE("[%p] pos=%d, oldpos=%d\n", infoPtr->hwndSelf, infoPtr->nPos, oldPos);
511
512 if (infoPtr->nPos != oldPos)
513 {
514 /* gray and restore btns, and if from WM_SETPOS, hide the gray btns */
515 PAGER_UpdateBtns(infoPtr, scrollRange, !fromBtnPress);
516 PAGER_PositionChildWnd(infoPtr);
517 }
518
519 return 0;
520 }
521
522 static LRESULT
523 PAGER_WindowPosChanging(PAGER_INFO* infoPtr, WINDOWPOS *winpos)
524 {
525 if ((infoPtr->dwStyle & CCS_NORESIZE) && !(winpos->flags & SWP_NOSIZE))
526 {
527 /* don't let the app resize the nonscrollable dimension of a control
528 * that was created with CCS_NORESIZE style
529 * (i.e. height for a horizontal pager, or width for a vertical one) */
530
531 /* except if the current dimension is 0 and app is setting for
532 * first time, then save amount as dimension. - GA 8/01 */
533
534 if (infoPtr->dwStyle & PGS_HORZ)
535 if (!infoPtr->nHeight && winpos->cy)
536 infoPtr->nHeight = winpos->cy;
537 else
538 winpos->cy = infoPtr->nHeight;
539 else
540 if (!infoPtr->nWidth && winpos->cx)
541 infoPtr->nWidth = winpos->cx;
542 else
543 winpos->cx = infoPtr->nWidth;
544 return 0;
545 }
546
547 return DefWindowProcW (infoPtr->hwndSelf, WM_WINDOWPOSCHANGING, 0, (LPARAM)winpos);
548 }
549
550 static INT
551 PAGER_SetFixedWidth(PAGER_INFO* infoPtr)
552 {
553 /* Must set the non-scrollable dimension to be less than the full height/width
554 * so that NCCalcSize is called. The Microsoft docs mention 3/4 factor for button
555 * size, and experimentation shows that the effect is almost right. */
556
557 RECT wndRect;
558 INT delta, h;
559 GetWindowRect(infoPtr->hwndSelf, &wndRect);
560
561 /* see what the app says for btn width */
562 PAGER_CalcSize(infoPtr, &infoPtr->nWidth, TRUE);
563
564 if (infoPtr->dwStyle & CCS_NORESIZE)
565 {
566 delta = wndRect.right - wndRect.left - infoPtr->nWidth;
567 if (delta > infoPtr->nButtonSize)
568 infoPtr->nWidth += 4 * infoPtr->nButtonSize / 3;
569 else if (delta > 0)
570 infoPtr->nWidth += infoPtr->nButtonSize / 3;
571 }
572
573 h = wndRect.bottom - wndRect.top + infoPtr->nButtonSize;
574
575 TRACE("[%p] infoPtr->nWidth set to %d\n",
576 infoPtr->hwndSelf, infoPtr->nWidth);
577
578 return h;
579 }
580
581 static INT
582 PAGER_SetFixedHeight(PAGER_INFO* infoPtr)
583 {
584 /* Must set the non-scrollable dimension to be less than the full height/width
585 * so that NCCalcSize is called. The Microsoft docs mention 3/4 factor for button
586 * size, and experimentation shows that the effect is almost right. */
587
588 RECT wndRect;
589 INT delta, w;
590 GetWindowRect(infoPtr->hwndSelf, &wndRect);
591
592 /* see what the app says for btn height */
593 PAGER_CalcSize(infoPtr, &infoPtr->nHeight, FALSE);
594
595 if (infoPtr->dwStyle & CCS_NORESIZE)
596 {
597 delta = wndRect.bottom - wndRect.top - infoPtr->nHeight;
598 if (delta > infoPtr->nButtonSize)
599 infoPtr->nHeight += infoPtr->nButtonSize;
600 else if (delta > 0)
601 infoPtr->nHeight += infoPtr->nButtonSize / 3;
602 }
603
604 w = wndRect.right - wndRect.left + infoPtr->nButtonSize;
605
606 TRACE("[%p] infoPtr->nHeight set to %d\n",
607 infoPtr->hwndSelf, infoPtr->nHeight);
608
609 return w;
610 }
611
612 /******************************************************************
613 * For the PGM_RECALCSIZE message (but not the other uses in *
614 * this module), the native control does only the following: *
615 * *
616 * if (some condition) *
617 * PostMessageW(hwnd, EM_FMTLINES, 0, 0); *
618 * return DefWindowProcW(hwnd, PGM_RECALCSIZE, 0, 0); *
619 * *
620 * When we figure out what the "some condition" is we will *
621 * implement that for the message processing. *
622 ******************************************************************/
623
624 static LRESULT
625 PAGER_RecalcSize(PAGER_INFO *infoPtr)
626 {
627 TRACE("[%p]\n", infoPtr->hwndSelf);
628
629 if (infoPtr->hwndChild)
630 {
631 INT scrollRange = PAGER_GetScrollRange(infoPtr);
632
633 if (scrollRange <= 0)
634 {
635 infoPtr->nPos = -1;
636 PAGER_SetPos(infoPtr, 0, FALSE);
637 }
638 else
639 PAGER_PositionChildWnd(infoPtr);
640 }
641
642 return 1;
643 }
644
645
646 static COLORREF
647 PAGER_SetBkColor (PAGER_INFO* infoPtr, COLORREF clrBk)
648 {
649 COLORREF clrTemp = infoPtr->clrBk;
650
651 infoPtr->clrBk = clrBk;
652 TRACE("[%p] %06x\n", infoPtr->hwndSelf, infoPtr->clrBk);
653
654 /* the native control seems to do things this way */
655 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
656 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
657 SWP_NOZORDER | SWP_NOACTIVATE);
658
659 RedrawWindow(infoPtr->hwndSelf, 0, 0, RDW_ERASE | RDW_INVALIDATE);
660
661 return clrTemp;
662 }
663
664
665 static INT
666 PAGER_SetBorder (PAGER_INFO* infoPtr, INT iBorder)
667 {
668 INT nTemp = infoPtr->nBorder;
669
670 infoPtr->nBorder = iBorder;
671 TRACE("[%p] %d\n", infoPtr->hwndSelf, infoPtr->nBorder);
672
673 PAGER_RecalcSize(infoPtr);
674
675 return nTemp;
676 }
677
678
679 static INT
680 PAGER_SetButtonSize (PAGER_INFO* infoPtr, INT iButtonSize)
681 {
682 INT nTemp = infoPtr->nButtonSize;
683
684 infoPtr->nButtonSize = iButtonSize;
685 TRACE("[%p] %d\n", infoPtr->hwndSelf, infoPtr->nButtonSize);
686
687 PAGER_RecalcSize(infoPtr);
688
689 return nTemp;
690 }
691
692
693 static LRESULT
694 PAGER_SetChild (PAGER_INFO* infoPtr, HWND hwndChild)
695 {
696 INT hw;
697
698 infoPtr->hwndChild = IsWindow (hwndChild) ? hwndChild : 0;
699
700 if (infoPtr->hwndChild)
701 {
702 TRACE("[%p] hwndChild=%p\n", infoPtr->hwndSelf, infoPtr->hwndChild);
703
704 if (infoPtr->dwStyle & PGS_HORZ) {
705 hw = PAGER_SetFixedHeight(infoPtr);
706 /* adjust non-scrollable dimension to fit the child */
707 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, hw, infoPtr->nHeight,
708 SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOZORDER |
709 SWP_NOSIZE | SWP_NOACTIVATE);
710 }
711 else {
712 hw = PAGER_SetFixedWidth(infoPtr);
713 /* adjust non-scrollable dimension to fit the child */
714 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, infoPtr->nWidth, hw,
715 SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOZORDER |
716 SWP_NOSIZE | SWP_NOACTIVATE);
717 }
718
719 /* position child within the page scroller */
720 SetWindowPos(infoPtr->hwndChild, HWND_TOP,
721 0,0,0,0,
722 SWP_SHOWWINDOW | SWP_NOSIZE); /* native is 0 */
723
724 infoPtr->nPos = -1;
725 PAGER_SetPos(infoPtr, 0, FALSE);
726 }
727
728 return 0;
729 }
730
731 static void
732 PAGER_Scroll(PAGER_INFO* infoPtr, INT dir)
733 {
734 NMPGSCROLL nmpgScroll;
735 RECT rcWnd;
736
737 if (infoPtr->hwndChild)
738 {
739 ZeroMemory (&nmpgScroll, sizeof (NMPGSCROLL));
740 nmpgScroll.hdr.hwndFrom = infoPtr->hwndSelf;
741 nmpgScroll.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID);
742 nmpgScroll.hdr.code = PGN_SCROLL;
743
744 GetWindowRect(infoPtr->hwndSelf, &rcWnd);
745 GetClientRect(infoPtr->hwndSelf, &nmpgScroll.rcParent);
746 nmpgScroll.iXpos = nmpgScroll.iYpos = 0;
747 nmpgScroll.iDir = dir;
748
749 if (infoPtr->dwStyle & PGS_HORZ)
750 {
751 nmpgScroll.iScroll = rcWnd.right - rcWnd.left;
752 nmpgScroll.iXpos = infoPtr->nPos;
753 }
754 else
755 {
756 nmpgScroll.iScroll = rcWnd.bottom - rcWnd.top;
757 nmpgScroll.iYpos = infoPtr->nPos;
758 }
759 nmpgScroll.iScroll -= 2*infoPtr->nButtonSize;
760
761 SendMessageW (infoPtr->hwndNotify, WM_NOTIFY, nmpgScroll.hdr.idFrom, (LPARAM)&nmpgScroll);
762
763 TRACE("[%p] PGN_SCROLL returns iScroll=%d\n", infoPtr->hwndSelf, nmpgScroll.iScroll);
764
765 if (nmpgScroll.iScroll > 0)
766 {
767 infoPtr->direction = dir;
768
769 if (dir == PGF_SCROLLLEFT || dir == PGF_SCROLLUP)
770 PAGER_SetPos(infoPtr, infoPtr->nPos - nmpgScroll.iScroll, TRUE);
771 else
772 PAGER_SetPos(infoPtr, infoPtr->nPos + nmpgScroll.iScroll, TRUE);
773 }
774 else
775 infoPtr->direction = -1;
776 }
777 }
778
779 static LRESULT
780 PAGER_FmtLines(const PAGER_INFO *infoPtr)
781 {
782 /* initiate NCCalcSize to resize client wnd and get size */
783 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
784 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
785 SWP_NOZORDER | SWP_NOACTIVATE);
786
787 SetWindowPos(infoPtr->hwndChild, 0,
788 0,0,infoPtr->nWidth,infoPtr->nHeight,
789 0);
790
791 return DefWindowProcW (infoPtr->hwndSelf, EM_FMTLINES, 0, 0);
792 }
793
794 static LRESULT
795 PAGER_Create (HWND hwnd, const CREATESTRUCTW *lpcs)
796 {
797 PAGER_INFO *infoPtr;
798
799 /* allocate memory for info structure */
800 infoPtr = Alloc (sizeof(PAGER_INFO));
801 if (!infoPtr) return -1;
802 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
803
804 /* set default settings */
805 infoPtr->hwndSelf = hwnd;
806 infoPtr->hwndChild = NULL;
807 infoPtr->hwndNotify = lpcs->hwndParent;
808 infoPtr->dwStyle = lpcs->style;
809 infoPtr->clrBk = GetSysColor(COLOR_BTNFACE);
810 infoPtr->nBorder = 0;
811 infoPtr->nButtonSize = 12;
812 infoPtr->nPos = 0;
813 infoPtr->nWidth = 0;
814 infoPtr->nHeight = 0;
815 infoPtr->bForward = FALSE;
816 infoPtr->bCapture = FALSE;
817 infoPtr->TLbtnState = PGF_INVISIBLE;
818 infoPtr->BRbtnState = PGF_INVISIBLE;
819 infoPtr->direction = -1;
820
821 if (infoPtr->dwStyle & PGS_DRAGNDROP)
822 FIXME("[%p] Drag and Drop style is not implemented yet.\n", infoPtr->hwndSelf);
823
824 return 0;
825 }
826
827
828 static LRESULT
829 PAGER_Destroy (PAGER_INFO *infoPtr)
830 {
831 SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0);
832 Free (infoPtr); /* free pager info data */
833 return 0;
834 }
835
836 static LRESULT
837 PAGER_NCCalcSize(PAGER_INFO* infoPtr, WPARAM wParam, LPRECT lpRect)
838 {
839 RECT rcChild, rcWindow;
840
841 /*
842 * lpRect points to a RECT struct. On entry, the struct
843 * contains the proposed wnd rectangle for the window.
844 * On exit, the struct should contain the screen
845 * coordinates of the corresponding window's client area.
846 */
847
848 DefWindowProcW (infoPtr->hwndSelf, WM_NCCALCSIZE, wParam, (LPARAM)lpRect);
849
850 TRACE("orig rect=%s\n", wine_dbgstr_rect(lpRect));
851
852 GetWindowRect (infoPtr->hwndChild, &rcChild);
853 MapWindowPoints (0, infoPtr->hwndSelf, (LPPOINT)&rcChild, 2); /* FIXME: RECT != 2 POINTS */
854 GetWindowRect (infoPtr->hwndSelf, &rcWindow);
855
856 if (infoPtr->dwStyle & PGS_HORZ)
857 {
858 infoPtr->nWidth = lpRect->right - lpRect->left;
859 PAGER_CalcSize (infoPtr, &infoPtr->nWidth, TRUE);
860
861 if (infoPtr->TLbtnState && (lpRect->left + infoPtr->nButtonSize < lpRect->right))
862 lpRect->left += infoPtr->nButtonSize;
863 if (infoPtr->BRbtnState && (lpRect->right - infoPtr->nButtonSize > lpRect->left))
864 lpRect->right -= infoPtr->nButtonSize;
865 }
866 else
867 {
868 infoPtr->nHeight = lpRect->bottom - lpRect->top;
869 PAGER_CalcSize (infoPtr, &infoPtr->nHeight, FALSE);
870
871 if (infoPtr->TLbtnState && (lpRect->top + infoPtr->nButtonSize < lpRect->bottom))
872 lpRect->top += infoPtr->nButtonSize;
873 if (infoPtr->BRbtnState && (lpRect->bottom - infoPtr->nButtonSize > lpRect->top))
874 lpRect->bottom -= infoPtr->nButtonSize;
875 }
876
877 TRACE("nPos=%d, nHeight=%d, window=%s\n",
878 infoPtr->nPos, infoPtr->nHeight,
879 wine_dbgstr_rect(&rcWindow));
880
881 TRACE("[%p] client rect set to %dx%d at (%d,%d) BtnState[%d,%d]\n",
882 infoPtr->hwndSelf, lpRect->right-lpRect->left, lpRect->bottom-lpRect->top,
883 lpRect->left, lpRect->top,
884 infoPtr->TLbtnState, infoPtr->BRbtnState);
885
886 return 0;
887 }
888
889 static LRESULT
890 PAGER_NCPaint (const PAGER_INFO* infoPtr, HRGN hRgn)
891 {
892 RECT rcBottomRight, rcTopLeft;
893 HDC hdc;
894
895 if (infoPtr->dwStyle & WS_MINIMIZE)
896 return 0;
897
898 DefWindowProcW (infoPtr->hwndSelf, WM_NCPAINT, (WPARAM)hRgn, 0);
899
900 if (!(hdc = GetDCEx (infoPtr->hwndSelf, 0, DCX_USESTYLE | DCX_WINDOW)))
901 return 0;
902
903 PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, FALSE);
904
905 PAGER_DrawButton(hdc, infoPtr->clrBk, rcTopLeft,
906 infoPtr->dwStyle & PGS_HORZ, TRUE, infoPtr->TLbtnState);
907 PAGER_DrawButton(hdc, infoPtr->clrBk, rcBottomRight,
908 infoPtr->dwStyle & PGS_HORZ, FALSE, infoPtr->BRbtnState);
909
910 ReleaseDC( infoPtr->hwndSelf, hdc );
911 return 0;
912 }
913
914 static INT
915 PAGER_HitTest (const PAGER_INFO* infoPtr, const POINT * pt)
916 {
917 RECT clientRect, rcTopLeft, rcBottomRight;
918 POINT ptWindow;
919
920 GetClientRect (infoPtr->hwndSelf, &clientRect);
921
922 if (PtInRect(&clientRect, *pt))
923 {
924 TRACE("child\n");
925 return -1;
926 }
927
928 ptWindow = *pt;
929 PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, TRUE);
930
931 if ((infoPtr->TLbtnState != PGF_INVISIBLE) && PtInRect(&rcTopLeft, ptWindow))
932 {
933 TRACE("PGB_TOPORLEFT\n");
934 return PGB_TOPORLEFT;
935 }
936 else if ((infoPtr->BRbtnState != PGF_INVISIBLE) && PtInRect(&rcBottomRight, ptWindow))
937 {
938 TRACE("PGB_BOTTOMORRIGHT\n");
939 return PGB_BOTTOMORRIGHT;
940 }
941
942 TRACE("nowhere\n");
943 return -1;
944 }
945
946 static LRESULT
947 PAGER_NCHitTest (const PAGER_INFO* infoPtr, INT x, INT y)
948 {
949 POINT pt;
950 INT nHit;
951
952 pt.x = x;
953 pt.y = y;
954
955 ScreenToClient (infoPtr->hwndSelf, &pt);
956 nHit = PAGER_HitTest(infoPtr, &pt);
957
958 return (nHit < 0) ? HTTRANSPARENT : HTCLIENT;
959 }
960
961 static LRESULT
962 PAGER_MouseMove (PAGER_INFO* infoPtr, INT keys, INT x, INT y)
963 {
964 POINT clpt, pt;
965 RECT wnrect, *btnrect = NULL;
966 BOOL topLeft = FALSE;
967 INT btnstate = 0;
968 INT hit;
969 HDC hdc;
970
971 pt.x = x;
972 pt.y = y;
973
974 TRACE("[%p] to (%d,%d)\n", infoPtr->hwndSelf, x, y);
975 ClientToScreen(infoPtr->hwndSelf, &pt);
976 GetWindowRect(infoPtr->hwndSelf, &wnrect);
977 if (PtInRect(&wnrect, pt)) {
978 RECT TLbtnrect, BRbtnrect;
979 PAGER_GetButtonRects(infoPtr, &TLbtnrect, &BRbtnrect, FALSE);
980
981 clpt = pt;
982 MapWindowPoints(0, infoPtr->hwndSelf, &clpt, 1);
983 hit = PAGER_HitTest(infoPtr, &clpt);
984 if ((hit == PGB_TOPORLEFT) && (infoPtr->TLbtnState == PGF_NORMAL))
985 {
986 topLeft = TRUE;
987 btnrect = &TLbtnrect;
988 infoPtr->TLbtnState = PGF_HOT;
989 btnstate = infoPtr->TLbtnState;
990 }
991 else if ((hit == PGB_BOTTOMORRIGHT) && (infoPtr->BRbtnState == PGF_NORMAL))
992 {
993 topLeft = FALSE;
994 btnrect = &BRbtnrect;
995 infoPtr->BRbtnState = PGF_HOT;
996 btnstate = infoPtr->BRbtnState;
997 }
998
999 /* If in one of the buttons the capture and draw buttons */
1000 if (btnrect)
1001 {
1002 TRACE("[%p] draw btn (%s), Capture %s, style %08x\n",
1003 infoPtr->hwndSelf, wine_dbgstr_rect(btnrect),
1004 (infoPtr->bCapture) ? "TRUE" : "FALSE",
1005 infoPtr->dwStyle);
1006 if (!infoPtr->bCapture)
1007 {
1008 TRACE("[%p] SetCapture\n", infoPtr->hwndSelf);
1009 SetCapture(infoPtr->hwndSelf);
1010 infoPtr->bCapture = TRUE;
1011 }
1012 if (infoPtr->dwStyle & PGS_AUTOSCROLL)
1013 SetTimer(infoPtr->hwndSelf, TIMERID1, 0x3e, 0);
1014 hdc = GetWindowDC(infoPtr->hwndSelf);
1015 /* OffsetRect(wnrect, 0 | 1, 0 | 1) */
1016 PAGER_DrawButton(hdc, infoPtr->clrBk, *btnrect,
1017 infoPtr->dwStyle & PGS_HORZ, topLeft, btnstate);
1018 ReleaseDC(infoPtr->hwndSelf, hdc);
1019 return 0;
1020 }
1021 }
1022
1023 /* If we think we are captured, then do release */
1024 if (infoPtr->bCapture && (WindowFromPoint(pt) != infoPtr->hwndSelf))
1025 {
1026 NMHDR nmhdr;
1027
1028 infoPtr->bCapture = FALSE;
1029
1030 if (GetCapture() == infoPtr->hwndSelf)
1031 {
1032 ReleaseCapture();
1033
1034 if (infoPtr->TLbtnState == PGF_GRAYED)
1035 {
1036 infoPtr->TLbtnState = PGF_INVISIBLE;
1037 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
1038 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
1039 SWP_NOZORDER | SWP_NOACTIVATE);
1040 }
1041 else if (infoPtr->TLbtnState == PGF_HOT)
1042 {
1043 infoPtr->TLbtnState = PGF_NORMAL;
1044 /* FIXME: just invalidate button rect */
1045 RedrawWindow(infoPtr->hwndSelf, NULL, NULL, RDW_FRAME | RDW_INVALIDATE);
1046 }
1047
1048 if (infoPtr->BRbtnState == PGF_GRAYED)
1049 {
1050 infoPtr->BRbtnState = PGF_INVISIBLE;
1051 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
1052 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
1053 SWP_NOZORDER | SWP_NOACTIVATE);
1054 }
1055 else if (infoPtr->BRbtnState == PGF_HOT)
1056 {
1057 infoPtr->BRbtnState = PGF_NORMAL;
1058 /* FIXME: just invalidate button rect */
1059 RedrawWindow(infoPtr->hwndSelf, NULL, NULL, RDW_FRAME | RDW_INVALIDATE);
1060 }
1061
1062 /* Notify parent of released mouse capture */
1063 memset(&nmhdr, 0, sizeof(NMHDR));
1064 nmhdr.hwndFrom = infoPtr->hwndSelf;
1065 nmhdr.idFrom = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
1066 nmhdr.code = NM_RELEASEDCAPTURE;
1067 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, nmhdr.idFrom, (LPARAM)&nmhdr);
1068 }
1069 if (IsWindow(infoPtr->hwndSelf))
1070 KillTimer(infoPtr->hwndSelf, TIMERID1);
1071 }
1072 return 0;
1073 }
1074
1075 static LRESULT
1076 PAGER_LButtonDown (PAGER_INFO* infoPtr, INT keys, INT x, INT y)
1077 {
1078 BOOL repaintBtns = FALSE;
1079 POINT pt;
1080 INT hit;
1081
1082 pt.x = x;
1083 pt.y = y;
1084
1085 TRACE("[%p] at (%d,%d)\n", infoPtr->hwndSelf, x, y);
1086
1087 hit = PAGER_HitTest(infoPtr, &pt);
1088
1089 /* put btn in DEPRESSED state */
1090 if (hit == PGB_TOPORLEFT)
1091 {
1092 repaintBtns = infoPtr->TLbtnState != PGF_DEPRESSED;
1093 infoPtr->TLbtnState = PGF_DEPRESSED;
1094 SetTimer(infoPtr->hwndSelf, TIMERID1, INITIAL_DELAY, 0);
1095 }
1096 else if (hit == PGB_BOTTOMORRIGHT)
1097 {
1098 repaintBtns = infoPtr->BRbtnState != PGF_DEPRESSED;
1099 infoPtr->BRbtnState = PGF_DEPRESSED;
1100 SetTimer(infoPtr->hwndSelf, TIMERID1, INITIAL_DELAY, 0);
1101 }
1102
1103 if (repaintBtns)
1104 SendMessageW(infoPtr->hwndSelf, WM_NCPAINT, 0, 0);
1105
1106 switch(hit)
1107 {
1108 case PGB_TOPORLEFT:
1109 if (infoPtr->dwStyle & PGS_HORZ)
1110 {
1111 TRACE("[%p] PGF_SCROLLLEFT\n", infoPtr->hwndSelf);
1112 PAGER_Scroll(infoPtr, PGF_SCROLLLEFT);
1113 }
1114 else
1115 {
1116 TRACE("[%p] PGF_SCROLLUP\n", infoPtr->hwndSelf);
1117 PAGER_Scroll(infoPtr, PGF_SCROLLUP);
1118 }
1119 break;
1120 case PGB_BOTTOMORRIGHT:
1121 if (infoPtr->dwStyle & PGS_HORZ)
1122 {
1123 TRACE("[%p] PGF_SCROLLRIGHT\n", infoPtr->hwndSelf);
1124 PAGER_Scroll(infoPtr, PGF_SCROLLRIGHT);
1125 }
1126 else
1127 {
1128 TRACE("[%p] PGF_SCROLLDOWN\n", infoPtr->hwndSelf);
1129 PAGER_Scroll(infoPtr, PGF_SCROLLDOWN);
1130 }
1131 break;
1132 default:
1133 break;
1134 }
1135
1136 return 0;
1137 }
1138
1139 static LRESULT
1140 PAGER_LButtonUp (PAGER_INFO* infoPtr, INT keys, INT x, INT y)
1141 {
1142 TRACE("[%p]\n", infoPtr->hwndSelf);
1143
1144 KillTimer (infoPtr->hwndSelf, TIMERID1);
1145 KillTimer (infoPtr->hwndSelf, TIMERID2);
1146
1147 /* make PRESSED btns NORMAL but don't hide gray btns */
1148 if (infoPtr->TLbtnState & (PGF_HOT | PGF_DEPRESSED))
1149 infoPtr->TLbtnState = PGF_NORMAL;
1150 if (infoPtr->BRbtnState & (PGF_HOT | PGF_DEPRESSED))
1151 infoPtr->BRbtnState = PGF_NORMAL;
1152
1153 return 0;
1154 }
1155
1156 static LRESULT
1157 PAGER_Timer (PAGER_INFO* infoPtr, INT nTimerId)
1158 {
1159 INT dir;
1160
1161 /* if initial timer, kill it and start the repeat timer */
1162 if (nTimerId == TIMERID1) {
1163 if (infoPtr->TLbtnState == PGF_HOT)
1164 dir = (infoPtr->dwStyle & PGS_HORZ) ?
1165 PGF_SCROLLLEFT : PGF_SCROLLUP;
1166 else
1167 dir = (infoPtr->dwStyle & PGS_HORZ) ?
1168 PGF_SCROLLRIGHT : PGF_SCROLLDOWN;
1169 TRACE("[%p] TIMERID1: style=%08x, dir=%d\n",
1170 infoPtr->hwndSelf, infoPtr->dwStyle, dir);
1171 KillTimer(infoPtr->hwndSelf, TIMERID1);
1172 SetTimer(infoPtr->hwndSelf, TIMERID1, REPEAT_DELAY, 0);
1173 if (infoPtr->dwStyle & PGS_AUTOSCROLL) {
1174 PAGER_Scroll(infoPtr, dir);
1175 SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
1176 SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
1177 SWP_NOZORDER | SWP_NOACTIVATE);
1178 }
1179 return 0;
1180
1181 }
1182
1183 TRACE("[%p] TIMERID2: dir=%d\n", infoPtr->hwndSelf, infoPtr->direction);
1184 KillTimer(infoPtr->hwndSelf, TIMERID2);
1185 if (infoPtr->direction > 0) {
1186 PAGER_Scroll(infoPtr, infoPtr->direction);
1187 SetTimer(infoPtr->hwndSelf, TIMERID2, REPEAT_DELAY, 0);
1188 }
1189 return 0;
1190 }
1191
1192 static LRESULT
1193 PAGER_EraseBackground (const PAGER_INFO* infoPtr, HDC hdc)
1194 {
1195 POINT pt, ptorig;
1196 HWND parent;
1197
1198 pt.x = 0;
1199 pt.y = 0;
1200 parent = GetParent(infoPtr->hwndSelf);
1201 MapWindowPoints(infoPtr->hwndSelf, parent, &pt, 1);
1202 OffsetWindowOrgEx (hdc, pt.x, pt.y, &ptorig);
1203 SendMessageW (parent, WM_ERASEBKGND, (WPARAM)hdc, 0);
1204 SetWindowOrgEx (hdc, ptorig.x, ptorig.y, 0);
1205
1206 return 0;
1207 }
1208
1209
1210 static LRESULT
1211 PAGER_Size (PAGER_INFO* infoPtr, INT type, INT x, INT y)
1212 {
1213 /* note that WM_SIZE is sent whenever NCCalcSize resizes the client wnd */
1214
1215 TRACE("[%p] %d,%d\n", infoPtr->hwndSelf, x, y);
1216
1217 if (infoPtr->dwStyle & PGS_HORZ)
1218 infoPtr->nHeight = y;
1219 else
1220 infoPtr->nWidth = x;
1221
1222 return PAGER_RecalcSize(infoPtr);
1223 }
1224
1225
1226 static LRESULT
1227 PAGER_StyleChanged(PAGER_INFO *infoPtr, WPARAM wStyleType, const STYLESTRUCT *lpss)
1228 {
1229 DWORD oldStyle = infoPtr->dwStyle;
1230
1231 TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
1232 wStyleType, lpss->styleOld, lpss->styleNew);
1233
1234 if (wStyleType != GWL_STYLE) return 0;
1235
1236 infoPtr->dwStyle = lpss->styleNew;
1237
1238 if ((oldStyle ^ lpss->styleNew) & (PGS_HORZ | PGS_VERT))
1239 {
1240 PAGER_RecalcSize(infoPtr);
1241 }
1242
1243 return 0;
1244 }
1245
1246 static LRESULT WINAPI
1247 PAGER_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1248 {
1249 PAGER_INFO *infoPtr = (PAGER_INFO *)GetWindowLongPtrW(hwnd, 0);
1250
1251 if (!infoPtr && (uMsg != WM_CREATE))
1252 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1253
1254 switch (uMsg)
1255 {
1256 case EM_FMTLINES:
1257 return PAGER_FmtLines(infoPtr);
1258
1259 case PGM_FORWARDMOUSE:
1260 return PAGER_ForwardMouse (infoPtr, (BOOL)wParam);
1261
1262 case PGM_GETBKCOLOR:
1263 return PAGER_GetBkColor(infoPtr);
1264
1265 case PGM_GETBORDER:
1266 return PAGER_GetBorder(infoPtr);
1267
1268 case PGM_GETBUTTONSIZE:
1269 return PAGER_GetButtonSize(infoPtr);
1270
1271 case PGM_GETPOS:
1272 return PAGER_GetPos(infoPtr);
1273
1274 case PGM_GETBUTTONSTATE:
1275 return PAGER_GetButtonState (infoPtr, (INT)lParam);
1276
1277 /* case PGM_GETDROPTARGET: */
1278
1279 case PGM_RECALCSIZE:
1280 return PAGER_RecalcSize(infoPtr);
1281
1282 case PGM_SETBKCOLOR:
1283 return PAGER_SetBkColor (infoPtr, (COLORREF)lParam);
1284
1285 case PGM_SETBORDER:
1286 return PAGER_SetBorder (infoPtr, (INT)lParam);
1287
1288 case PGM_SETBUTTONSIZE:
1289 return PAGER_SetButtonSize (infoPtr, (INT)lParam);
1290
1291 case PGM_SETCHILD:
1292 return PAGER_SetChild (infoPtr, (HWND)lParam);
1293
1294 case PGM_SETPOS:
1295 return PAGER_SetPos(infoPtr, (INT)lParam, FALSE);
1296
1297 case WM_CREATE:
1298 return PAGER_Create (hwnd, (LPCREATESTRUCTW)lParam);
1299
1300 case WM_DESTROY:
1301 return PAGER_Destroy (infoPtr);
1302
1303 case WM_SIZE:
1304 return PAGER_Size (infoPtr, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
1305
1306 case WM_NCPAINT:
1307 return PAGER_NCPaint (infoPtr, (HRGN)wParam);
1308
1309 case WM_WINDOWPOSCHANGING:
1310 return PAGER_WindowPosChanging (infoPtr, (WINDOWPOS*)lParam);
1311
1312 case WM_STYLECHANGED:
1313 return PAGER_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
1314
1315 case WM_NCCALCSIZE:
1316 return PAGER_NCCalcSize (infoPtr, wParam, (LPRECT)lParam);
1317
1318 case WM_NCHITTEST:
1319 return PAGER_NCHitTest (infoPtr, (short)LOWORD(lParam), (short)HIWORD(lParam));
1320
1321 case WM_MOUSEMOVE:
1322 if (infoPtr->bForward && infoPtr->hwndChild)
1323 PostMessageW(infoPtr->hwndChild, WM_MOUSEMOVE, wParam, lParam);
1324 return PAGER_MouseMove (infoPtr, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
1325
1326 case WM_LBUTTONDOWN:
1327 return PAGER_LButtonDown (infoPtr, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
1328
1329 case WM_LBUTTONUP:
1330 return PAGER_LButtonUp (infoPtr, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam));
1331
1332 case WM_ERASEBKGND:
1333 return PAGER_EraseBackground (infoPtr, (HDC)wParam);
1334
1335 case WM_TIMER:
1336 return PAGER_Timer (infoPtr, (INT)wParam);
1337
1338 case WM_NOTIFY:
1339 case WM_COMMAND:
1340 return SendMessageW (infoPtr->hwndNotify, uMsg, wParam, lParam);
1341
1342 default:
1343 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1344 }
1345 }
1346
1347
1348 VOID
1349 PAGER_Register (void)
1350 {
1351 WNDCLASSW wndClass;
1352
1353 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1354 wndClass.style = CS_GLOBALCLASS;
1355 wndClass.lpfnWndProc = PAGER_WindowProc;
1356 wndClass.cbClsExtra = 0;
1357 wndClass.cbWndExtra = sizeof(PAGER_INFO *);
1358 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1359 wndClass.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
1360 wndClass.lpszClassName = WC_PAGESCROLLERW;
1361
1362 RegisterClassW (&wndClass);
1363 }
1364
1365
1366 VOID
1367 PAGER_Unregister (void)
1368 {
1369 UnregisterClassW (WC_PAGESCROLLERW, NULL);
1370 }
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