source: trunk/src/user32/dc.cpp@ 5898

Last change on this file since 5898 was 5882, checked in by sandervl, 24 years ago

ScrollDC fix; clip & scroll rect translation
File size: 60.5 KB
Line 
1/* $Id: dc.cpp,v 1.107 2001-06-02 14:26:52 sandervl Exp $ */
2
3/*
4 * DC functions for USER32
5 *
6 * Project Odin Software License can be found in LICENSE.TXT
7 *
8 */
9
10/*****************************************************************************
11 * Includes *
12 *****************************************************************************/
13
14#include <odin.h>
15
16#define INCL_WIN
17#define INCL_GPI
18#define INCL_GREALL
19#define INCL_DEV
20#include <os2wrap.h>
21//#include <pmddi.h>
22#include <stdlib.h>
23
24#include <string.h>
25#include <win32type.h>
26#include <win32api.h>
27#include <winuser32.h>
28#include <winconst.h>
29#include <misc.h>
30#include <win32wbase.h>
31#include <math.h>
32#include <limits.h>
33#include "oslibwin.h"
34#include "oslibmsg.h"
35#include <dcdata.h>
36#include <codepage.h>
37#include <wingdi32.h>
38
39#define INCLUDED_BY_DC
40#include "dc.h"
41
42#define DBG_LOCALLOG DBG_dc
43#include "dbglocal.h"
44
45#ifndef DEVESC_SETPS
46 #define DEVESC_SETPS 49149L
47#endif
48
49#define FLOAT_TO_FIXED(x) ((FIXED) ((x) * 65536.0))
50#define MICRO_HPS_TO_HDC(x) ((x) & 0xFFFFFFFE)
51
52#define PMRECT_FROM_WINRECT( pmRect, winRect ) \
53{ \
54 (pmRect).xLeft = (winRect).left; \
55 (pmRect).yBottom = (winRect).bottom; \
56 (pmRect).xRight = (winRect).right; \
57 (pmRect).yTop = (winRect).top; \
58}
59
60#define WINRECT_FROM_PMRECT( winRect, pmRect ) \
61{ \
62 (winRect).left = (pmRect).xLeft; \
63 (winRect).top = (pmRect).yTop; \
64 (winRect).right = (pmRect).xRight; \
65 (winRect).bottom = (pmRect).yBottom; \
66}
67
68#define MEM_HPS_MAX 768
69
70const XFORM_W XFORMIdentity = { 1.0, 0.0, 0.0, 1.0, 0, 0 };
71const MATRIXLF matrixlfIdentity = { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0};
72
73BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps);
74BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev);
75LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps);
76
77#ifdef DEBUG
78#define dprintfRegion(a,b,c) if(DbgEnabledLvl2[DBG_LOCALLOG] == 1) dprintfRegion1(a,b,c)
79
80void dprintfRegion1(HPS hps, HWND hWnd, HRGN hrgnClip)
81{
82 RGNRECT rgnRect = {0, 16, 0, RECTDIR_LFRT_TOPBOT};
83 RECTL rectRegion[16];
84 APIRET rc;
85
86 dprintf(("dprintfRegion %x %x", hWnd, hps));
87 rc = GpiQueryRegionRects(hps, hrgnClip, NULL, &rgnRect, &rectRegion[0]);
88 for(int i=0;i<rgnRect.crcReturned;i++) {
89 dprintf(("(%d,%d)(%d,%d)", rectRegion[i].xLeft, rectRegion[i].yBottom, rectRegion[i].xRight, rectRegion[i].yTop));
90 }
91}
92#else
93#define dprintfRegion(a,b,c)
94#endif
95
96//******************************************************************************
97//******************************************************************************
98void WIN32API TestWideLine (pDCData pHps)
99{
100 const LOGPEN_W *pLogPen;
101
102 pHps->isWideLine = FALSE;
103 pLogPen = pHps->penIsExtPen ?
104 &(pHps->lastPenObject->ExtPen.logpen) :
105 &(pHps->lastPenObject->Pen.logpen);
106
107 if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
108 (pLogPen->lopnWidth.x > 0))
109 {
110 POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
111
112 GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
113
114 ULONG dx = abs(aptl[0].x - aptl[1].x);
115 ULONG dy = abs(aptl[0].y - aptl[1].y);
116
117 pHps->isWideLine = (dx > 1) || (dy > 1);
118 }
119}
120//******************************************************************************
121//******************************************************************************
122void WIN32API Calculate1PixelDelta(pDCData pHps)
123{
124 POINTL aptl[2] = {0, 0, 1, 1};
125
126 GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
127 pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
128 pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x); // 171182
129}
130//******************************************************************************
131//******************************************************************************
132int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
133{
134 int prevMode = 0;
135 ULONG flOptions;
136
137 switch (mode)
138 {
139 case MM_HIENGLISH_W : flOptions = PU_HIENGLISH; break;
140 case MM_LOENGLISH_W : flOptions = PU_LOENGLISH; break;
141 case MM_HIMETRIC_W : flOptions = PU_HIMETRIC ; break;
142 case MM_LOMETRIC_W : flOptions = PU_LOMETRIC ; break;
143 case MM_TEXT_W : flOptions = PU_PELS ; break;
144 case MM_TWIPS_W : flOptions = PU_TWIPS ; break;
145 case MM_ANISOTROPIC_W: flOptions = PU_PELS ; break;
146 case MM_ISOTROPIC_W : flOptions = PU_LOMETRIC ; break;
147 default:
148 SetLastError(ERROR_INVALID_PARAMETER_W);
149 return FALSE;
150 }
151
152 prevMode = pHps->MapMode; /* store previous mode */
153 pHps->MapMode = mode;
154
155 if (mode == MM_TEXT_W)
156 {
157 pHps->viewportXExt =
158 pHps->viewportYExt = 1.0;
159 pHps->windowExt.cx =
160 pHps->windowExt.cy = 1;
161 }
162 else if (mode != MM_ANISOTROPIC_W)
163 {
164 RECTL rectl;
165 SIZEL sizel;
166 ULONG data[3];
167
168 data[0] = flOptions;
169 data[1] = data[2] = 0;
170
171 if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
172 {
173 SetLastError(ERROR_INVALID_PARAMETER_W);
174 return 0;
175 }
176
177 GpiQueryPageViewport(pHps->hps, &rectl);
178 pHps->viewportXExt = (double)rectl.xRight;
179 pHps->viewportYExt = -(double)rectl.yTop;
180
181 GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
182 pHps->windowExt.cx = sizel.cx;
183 pHps->windowExt.cy = sizel.cy;
184
185 data[0] = PU_PELS;
186 DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
187 }
188
189 if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
190 ((mode == MM_ISOTROPIC_W) || (mode == MM_ANISOTROPIC_W)))
191 {
192 if (pHps->lWndXExtSave && pHps->lWndYExtSave)
193 {
194 changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
195 pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
196 pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
197 }
198 if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
199 {
200 changePageXForm (wnd, pHps, NULL,
201 pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
202 pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
203 }
204 }
205
206 setPageXForm(wnd, pHps);
207
208 return prevMode;
209}
210//******************************************************************************
211//******************************************************************************
212BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
213{
214 MATRIXLF mlf;
215 BOOL rc = TRUE;
216
217 pHps->height = clientHeight(wnd, 0, pHps) - 1;
218
219 double xScale = pHps->viewportXExt / (double)pHps->windowExt.cx;
220 double yScale = pHps->viewportYExt / (double)pHps->windowExt.cy;
221
222#if 0
223 mlf.fxM11 = FLOAT_TO_FIXED(1.0);
224 mlf.fxM12 = 0;
225 mlf.lM13 = 0;
226 mlf.fxM21 = 0;
227 mlf.fxM22 = FLOAT_TO_FIXED(1.0);
228 mlf.lM23 = 0;
229 mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
230 mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
231 mlf.lM33 = 1;
232
233//testestest
234 if(wnd && wnd->getWindowWidth() && wnd->getWindowHeight())
235 {
236 RECTL recttmp, rectviewold;
237
238 rc = GpiQueryPageViewport(pHps->hps, &rectviewold);
239 if(rc == 0) {
240 dprintf(("WARNING: GpiQueryPageViewport returned FALSE!!"));
241 }
242 recttmp.xLeft = 0;
243 recttmp.xRight = ((double)GetScreenWidth() / xScale);
244 recttmp.yBottom = 0;
245 recttmp.yTop = ((double)GetScreenHeight() / yScale);
246
247 if(recttmp.yTop != rectviewold.yTop ||
248 recttmp.xRight != rectviewold.xRight)
249 {
250 if(pHps->viewportYExt > pHps->windowExt.cy) {//scaling up means we have to invert the y values
251 recttmp.yBottom = GetScreenHeight() - recttmp.yTop;
252 recttmp.yTop = GetScreenHeight();
253 }
254 dprintf(("GpiSetPageViewport %x (%d,%d)(%d,%d) %f %f", pHps->hps, recttmp.xLeft, recttmp.yBottom, recttmp.xRight, recttmp.yTop, xScale, yScale));
255 rc = GpiSetPageViewport(pHps->hps, &recttmp);
256 if(rc == 0) {
257 dprintf(("WARNING: GpiSetPageViewport returned FALSE!!"));
258 }
259 }
260 }
261//testestest
262
263#else
264 mlf.fxM11 = FLOAT_TO_FIXED(xScale);
265 mlf.fxM12 = 0;
266 mlf.lM13 = 0;
267 mlf.fxM21 = 0;
268 mlf.fxM22 = FLOAT_TO_FIXED(yScale);
269 mlf.lM23 = 0;
270 mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
271 mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
272 mlf.lM33 = 1;
273#endif
274
275 pHps->isLeftLeft = mlf.fxM11 >= 0;
276 pHps->isTopTop = mlf.fxM22 >= 0;
277
278 BOOL bEnableYInversion = FALSE;
279 if ((mlf.fxM22 > 0) ||
280 ((pHps->graphicsMode == GM_ADVANCED_W) &&
281 ((pHps->MapMode == MM_ANISOTROPIC_W) ||
282 (pHps->MapMode == MM_ISOTROPIC_W))))
283 {
284 bEnableYInversion = TRUE;
285 }
286 else
287 {
288 bEnableYInversion = FALSE;
289 mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
290 mlf.fxM22 = -mlf.fxM22;
291 }
292
293 if (!pHps->isMetaPS)
294// if ((!pHps->isMetaPS) ||
295// (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
296 rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
297 if(rc == 0) {
298 dprintf(("WARNING: GpiSetDefaultViewMatrix returned FALSE!!"));
299 }
300#ifdef INVERT
301 if (bEnableYInversion)
302 GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
303 else
304 GpiEnableYInversion(pHps->hps, 0);
305#else
306 pHps->yInvert = 0;
307 if(bEnableYInversion)
308 {
309 pHps->yInvert4Enable = pHps->height + pHps->HPStoHDCInversionHeight;
310 if(pHps->isPrinter)
311 {
312 pHps->yInvert = pHps->yInvert4Enable
313 * (pHps->windowExt.cy / (double)pHps->viewportYExt);
314 } else {
315 pHps->yInvert = pHps->yInvert4Enable;
316 }
317 }
318#endif
319
320 TestWideLine(pHps);
321 Calculate1PixelDelta(pHps);
322 return rc;
323}
324//******************************************************************************
325//******************************************************************************
326BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
327{
328 BOOL result = FALSE;
329
330 if (pValue)
331 {
332 if (pPrev)
333 *pPrev = *pValue;
334
335 if ((pValue->x == x) && (pValue->y == y)) {
336 return TRUE;
337 }
338 pValue->x = x;
339 pValue->y = y;
340 }
341 else
342 {
343 if (pPrev)
344 {
345 pPrev->x = (int)pHps->viewportXExt;
346 pPrev->y = (int)pHps->viewportYExt;
347 }
348 pHps->viewportXExt = (double)x;
349 pHps->viewportYExt = (double)y;
350 }
351
352 if (pHps->MapMode == MM_ISOTROPIC_W)
353 {
354 double xExt = fabs(pHps->viewportXExt);
355 double yExt = fabs(pHps->viewportYExt);
356 double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
357
358 if (xExt > (yExt * sf))
359 {
360 xExt = yExt * sf;
361
362 if ((double)LONG_MAX <= xExt) return (result);
363
364 if (pHps->viewportXExt < 0.0)
365 pHps->viewportXExt = -xExt;
366 else
367 pHps->viewportXExt = xExt;
368 }
369 else
370 {
371 yExt = xExt / sf;
372
373 if ((double)LONG_MAX <= yExt) return (result);
374
375 if (pHps->viewportYExt < 0.0)
376 pHps->viewportYExt = -yExt;
377 else
378 pHps->viewportYExt = yExt;
379 }
380 }
381 result = setPageXForm(wnd, pHps);
382
383 return (result);
384}
385//******************************************************************************
386//******************************************************************************
387VOID removeClientArea(Win32BaseWindow *window, pDCData pHps)
388{
389 pHps->isClient = FALSE;
390 pHps->isClientArea = FALSE;
391}
392//******************************************************************************
393//******************************************************************************
394void selectClientArea(Win32BaseWindow *window, pDCData pHps)
395{
396 pHps->isClient = TRUE;
397 pHps->isClientArea = TRUE;
398}
399//******************************************************************************
400//******************************************************************************
401void selectClientArea(Win32BaseWindow *wnd, HDC hdc)
402{
403 pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
404
405 if (pHps != NULLHANDLE)
406 selectClientArea(wnd, pHps);
407}
408//******************************************************************************
409//******************************************************************************
410LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
411{
412 if ((hwnd == 0) && (pHps != 0))
413 hwnd = pHps->hwnd;
414
415 if ((hwnd != 0) || (pHps == 0))
416 {
417 if(wnd) {
418 if(pHps && !pHps->isClientArea) {
419 return (wnd->getWindowHeight());
420 }
421 else return (wnd->getClientHeight());
422 }
423 else return OSLibQueryScreenHeight();
424 }
425 else if (pHps->bitmapHandle)
426 {
427 return pHps->bitmapHeight;
428 }
429 else if (pHps->isMetaPS)
430 {
431 return 0;
432 }
433 else if (pHps->isPrinter)
434 {
435 return pHps->printPageHeight;
436 }
437 else
438 {
439 return MEM_HPS_MAX;
440 }
441}
442//******************************************************************************
443//******************************************************************************
444BOOL WIN32API changePageXForm(pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
445{
446 Win32BaseWindow *wnd;
447
448 if(pHps->isClient) {
449 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
450 }
451 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
452 return changePageXForm(wnd, pHps, pValue, x, y, pPrev);
453}
454//******************************************************************************
455//******************************************************************************
456BOOL WIN32API setPageXForm(pDCData pHps)
457{
458 Win32BaseWindow *wnd;
459
460 if(pHps->isClient) {
461 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
462 }
463 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
464 return setPageXForm(wnd, pHps);
465}
466//******************************************************************************
467//******************************************************************************
468VOID WIN32API removeClientArea(pDCData pHps)
469{
470 Win32BaseWindow *wnd;
471
472 if(pHps->isClient) {
473 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
474 }
475 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
476 if(wnd) {
477 removeClientArea(wnd, pHps);
478 }
479}
480//******************************************************************************
481//******************************************************************************
482VOID WIN32API selectClientArea(pDCData pHps)
483{
484 Win32BaseWindow *wnd;
485
486 if(pHps->isClient) {
487 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
488 }
489 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
490 if(wnd) {
491 selectClientArea(wnd, pHps);
492 }
493}
494//******************************************************************************
495//******************************************************************************
496VOID WIN32API checkOrigin(pDCData pHps)
497{
498 Win32BaseWindow *wnd;
499
500 if(pHps->isClient) {
501 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
502 }
503 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
504 if(wnd) {
505 if(pHps->isClient)
506 selectClientArea(wnd, pHps);
507 }
508}
509//******************************************************************************
510//******************************************************************************
511LONG WIN32API clientHeight(HWND hwnd, pDCData pHps)
512{
513 Win32BaseWindow *wnd;
514
515 if(!pHps) {
516 wnd = Win32BaseWindow::GetWindowFromOS2Handle(hwnd);
517 }
518 else
519 if(pHps->isClient) {
520 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
521 }
522 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
523 return clientHeight(wnd, hwnd, pHps);
524}
525//******************************************************************************
526//******************************************************************************
527int WIN32API setMapMode(pDCData pHps, int mode)
528{
529 Win32BaseWindow *wnd;
530
531 if(pHps->isClient) {
532 wnd = Win32BaseWindow::GetWindowFromOS2Handle(pHps->hwnd);
533 }
534 else wnd = Win32BaseWindow::GetWindowFromOS2FrameHandle(pHps->hwnd);
535 return setMapMode(wnd, pHps, mode);
536}
537//******************************************************************************
538//******************************************************************************
539BOOL isYup (pDCData pHps)
540{
541 if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) ||
542 ((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
543 {
544 if ((pHps->graphicsMode == GM_COMPATIBLE_W) ||
545 ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
546 return TRUE;
547 }
548 else
549 {
550 if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
551 return TRUE;
552 }
553 return FALSE;
554}
555//******************************************************************************
556//******************************************************************************
557INT revertDy (Win32BaseWindow *wnd, INT dy)
558{
559 //SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
560// if (wnd->isOwnDC() && wnd->getOwnDC())
561 if (wnd->isOwnDC())
562 {
563 pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
564
565 if (pHps != NULLHANDLE)
566 if (!isYup (pHps))
567 dy = -dy;
568 }
569 else
570 {
571 dy = -dy;
572 }
573 return (dy);
574}
575//******************************************************************************
576//******************************************************************************
577HDC sendEraseBkgnd (Win32BaseWindow *wnd)
578{
579 BOOL erased;
580 HWND hwnd;
581 HDC hdc;
582 HPS hps;
583 HRGN hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
584 RECTL rectl = { 1, 1, 2, 2 };
585
586 hwnd = wnd->getOS2WindowHandle();
587 hps = WinGetPS(hwnd);
588
589 hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
590 WinQueryUpdateRegion (hwnd, hrgnUpdate);
591 hrgnClip = GpiQueryClipRegion (hps);
592
593 if (hrgnClip == NULLHANDLE)
594 {
595 GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
596 }
597 else
598 {
599 hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
600 GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
601 GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
602 GpiDestroyRegion (hps, hrgnUpdate);
603 GpiDestroyRegion (hps, hrgnClip);
604 }
605 if (hrgnOld != NULLHANDLE)
606 GpiDestroyRegion (hps, hrgnOld);
607
608 hdc = HPSToHDC (hwnd, hps, NULL, NULL);
609
610 erased = wnd->MsgEraseBackGround (hdc);
611
612 DeleteHDC (hdc);
613 WinReleasePS (hps);
614
615 return erased;
616}
617//******************************************************************************
618//******************************************************************************
619void releaseOwnDC (HDC hps)
620{
621 pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
622
623 dprintf2(("releaseOwnDC %x", hps));
624
625 if (pHps) {
626 if (pHps->hrgnHDC)
627 GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
628
629 GpiSetBitmap (pHps->hps, NULL);
630 O32_DeleteObject (pHps->nullBitmapHandle);
631 GpiDestroyPS(pHps->hps);
632
633 if (pHps->hdc)
634 DevCloseDC(pHps->hdc);
635 }
636}
637//******************************************************************************
638//******************************************************************************
639HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
640{
641 HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
642 pDCData pHps = NULLHANDLE;
643 HPS hPS_ownDC = NULLHANDLE, hpsPaint = 0;
644 RECTL rectl = {0, 0, 1, 1};
645 HRGN hrgnOldClip;
646 LONG lComplexity;
647 RECTL rectlClient;
648 RECTL rectlClip;
649
650 if(lpps == NULL) {
651 //BeginPaint does NOT change last error in this case
652 //(verified in NT4, SP6)
653 dprintf (("USER32: BeginPaint %x NULL PAINTSTRUCT pointer", hWnd));
654 return 0;
655 }
656 memset(lpps, 0, sizeof(*lpps));
657
658 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
659 if(!wnd) {
660 dprintf (("USER32: BeginPaint %x %x: invalid window handle!!", hWnd, lpps));
661 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W); //(verified in NT4, SP6)
662 return (HDC)0;
663 }
664 HWND hwndClient = wnd->getOS2WindowHandle();
665
666 if(hwnd != HWND_DESKTOP && wnd->isOwnDC())
667 {
668 hPS_ownDC = wnd->getOwnDC();
669 //SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
670 if(hPS_ownDC) {
671 pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
672 if (!pHps)
673 {
674 dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
675 SetLastError(ERROR_INVALID_PARAMETER_W);
676 return (HDC)NULLHANDLE;
677 }
678 hpsPaint = hPS_ownDC;
679 }
680 }
681 if(!hpsPaint) {
682 hpsPaint = GetDCEx(hwnd, 0, (DCX_CACHE_W|DCX_USESTYLE_W));
683 pHps = (pDCData)GpiQueryDCData(hpsPaint);
684 if (!pHps)
685 {
686 dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
687 SetLastError(ERROR_INVALID_PARAMETER_W);
688 return (HDC)NULLHANDLE;
689 }
690 }
691
692 if(WinQueryUpdateRect(hwndClient, &rectl) == FALSE)
693 {
694 memset(&rectl, 0, sizeof(rectl));
695 dprintf (("USER32: WARNING: WinQueryUpdateRect failed (error or no update rectangle)!!"));
696
697 HRGN hrgnClip = GpiCreateRegion(pHps->hps, 1, &rectl);
698 GpiSetClipRegion(pHps->hps, hrgnClip, &hrgnOldClip);
699
700 selectClientArea(wnd, pHps);
701
702 //save old clip region (restored for CS_OWNDC windows in EndPaint)
703 wnd->SetClipRegion(hrgnOldClip);
704 lComplexity = RGN_NULL;
705 }
706 else {
707 rectlClip.yBottom = rectlClip.xLeft = 0;
708 rectlClip.yTop = rectlClip.xRight = 1;
709
710 //Query update region
711 HRGN hrgnClip = GpiCreateRegion(pHps->hps, 1, &rectlClip);
712 WinQueryUpdateRegion(hwndClient, hrgnClip);
713 WinValidateRegion(hwndClient, hrgnClip, FALSE);
714
715 dprintfRegion(pHps->hps, wnd->getWindowHandle(), hrgnClip);
716
717#ifdef DEBUG
718 //Note: GpiQueryClipBox returns logical points
719 lComplexity = GpiQueryClipBox(pHps->hps, &rectlClip);
720 dprintf(("ClipBox (%d): (%d,%d)(%d,%d)", lComplexity, rectlClip.xLeft, rectlClip.yBottom, rectlClip.xRight, rectlClip.yTop));
721#endif
722
723 //set clip region
724 lComplexity = GpiSetClipRegion(pHps->hps, hrgnClip, &hrgnOldClip);
725
726 if(lComplexity == RGN_NULL) {
727 dprintf (("BeginPaint %x: EMPTY update rectangle (show=%d/%d vis=%d/%d", hWnd, WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()), WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle())));
728 }
729 else dprintf (("BeginPaint %x: (show=%d/%d vis=%d/%d)", hWnd, WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()), WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle())));
730
731 selectClientArea(wnd, pHps);
732
733#ifdef DEBUG
734 //Note: GpiQueryClipBox returns logical points
735 GpiQueryClipBox(pHps->hps, &rectlClip);
736 dprintf(("ClipBox (%d): (%d,%d)(%d,%d)", lComplexity, rectlClip.xLeft, rectlClip.yBottom, rectlClip.xRight, rectlClip.yTop));
737#endif
738 //save old clip region (restored for CS_OWNDC windows in EndPaint)
739 wnd->SetClipRegion(hrgnOldClip);
740 }
741
742 if(hPS_ownDC == 0)
743 setMapMode (wnd, pHps, MM_TEXT_W);
744 else
745 setPageXForm(wnd, pHps);
746
747 pHps->hdcType = TYPE_3;
748
749 HideCaret(hwnd);
750 WinShowTrackRect(wnd->getOS2WindowHandle(), FALSE);
751
752 if((wnd->needsEraseBkgnd() || wnd->IsVisibleRegionChanged()) && lComplexity != RGN_NULL) {
753 wnd->setEraseBkgnd(FALSE);
754 wnd->SetVisibleRegionChanged(FALSE);
755 lpps->fErase = (wnd->MsgEraseBackGround(pHps->hps) == 0);
756 }
757 else lpps->fErase = TRUE;
758
759 lpps->hdc = (HDC)pHps->hps;
760
761 if(lComplexity != RGN_NULL) {
762 long height = wnd->getClientHeight();
763 lpps->rcPaint.top = height - rectl.yTop;
764 lpps->rcPaint.left = rectl.xLeft;
765 lpps->rcPaint.bottom = height - rectl.yBottom;
766 lpps->rcPaint.right = rectl.xRight;
767 //BeginPaint must return logical points instead of device points.
768 //(not the same if e.g. app changes page viewport)
769 DPtoLP(lpps->hdc, (LPPOINT)&lpps->rcPaint, 2);
770 }
771 else {
772 lpps->rcPaint.bottom = lpps->rcPaint.top = 0;
773 lpps->rcPaint.right = lpps->rcPaint.left = 0;
774 }
775
776 SetLastError(0);
777 dprintf(("USER32: BeginPaint %x -> hdc %x (%d,%d)(%d,%d)", hWnd, pHps->hps, lpps->rcPaint.left, lpps->rcPaint.top, lpps->rcPaint.right, lpps->rcPaint.bottom));
778 return (HDC)pHps->hps;
779}
780//******************************************************************************
781//******************************************************************************
782BOOL WIN32API EndPaint (HWND hWnd, const PAINTSTRUCT_W *pPaint)
783{
784 HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
785 HRGN hrgnOld;
786 pDCData pHps;
787
788 dprintf (("USER32: EndPaint(%x)", hwnd));
789
790 if (!pPaint || !pPaint->hdc )
791 return TRUE;
792
793 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
794
795 if (!wnd) goto exit;
796
797 pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
798 if (pHps && (pHps->hdcType == TYPE_3))
799 {
800 GpiSetClipRegion(pHps->hps, wnd->GetClipRegion(), &hrgnOld);
801 wnd->SetClipRegion(0);
802 if(hrgnOld) {
803 GpiDestroyRegion(pHps->hps, hrgnOld);
804 }
805 pHps->hdcType = TYPE_1; //otherwise Open32's ReleaseDC fails
806 ReleaseDC(hwnd, pPaint->hdc);
807 }
808 else {
809 dprintf(("EndPaint: wrong hdc %x!!", pPaint->hdc));
810 }
811 wnd->setEraseBkgnd(TRUE);
812 ShowCaret(hwnd);
813 WinShowTrackRect(wnd->getOS2WindowHandle(), TRUE);
814
815exit:
816 SetLastError(0);
817 return TRUE;
818}
819//******************************************************************************
820//******************************************************************************
821int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
822{
823 BOOL isOwnDC = FALSE;
824 int rc;
825
826 if (hwnd)
827 {
828 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
829 if(wnd == NULL) {
830 dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
831 return 0;
832 }
833 isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
834 if(!isOwnDC)
835 {
836 pDCData pHps = (pDCData)GpiQueryDCData((HPS)hdc);
837 if(pHps && pHps->psType == MICRO_CACHED) {
838 removeClientArea(wnd, pHps);
839 if(pHps->hrgnVis) {
840 GreDestroyRegion(pHps->hps, pHps->hrgnVis);
841 pHps->hrgnVis = 0;
842 }
843 }
844 else {
845 dprintf(("ERROR: ReleaseDC: pHps == NULL!!"));
846 DebugInt3();
847 }
848 }
849 else {
850 dprintf2(("ReleaseDC: CS_OWNDC, not released"));
851 }
852 }
853
854 if(isOwnDC) {
855 rc = TRUE;
856 }
857 else {
858 UnselectGDIObjects(hdc);
859 rc = O32_ReleaseDC (0, hdc);
860 }
861
862 dprintf(("ReleaseDC %x %x", hwnd, hdc));
863 return (rc);
864}
865//******************************************************************************
866// This implementation of GetDCEx supports
867// DCX_WINDOW
868// DCX_CACHE
869// DCX_EXCLUDERGN (complex regions allowed)
870// DCX_INTERSECTRGN (complex regions allowed)
871// DCX_USESTYLE
872// DCX_CLIPSIBLINGS
873// DCX_CLIPCHILDREN
874// DCX_PARENTCLIP
875//
876//TODO: WM_SETREDRAW affects drawingAllowed flag!!
877//******************************************************************************
878HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
879{
880 Win32BaseWindow *wnd = NULL;
881 HWND hWindow;
882 BOOL success;
883 pDCData pHps = NULL;
884 HPS hps = NULLHANDLE;
885 BOOL drawingAllowed = TRUE;
886 BOOL isWindowOwnDC;
887 BOOL creatingOwnDC = FALSE;
888 PS_Type psType;
889
890 if(hwnd == 0) {
891 dprintf(("error: GetDCEx window %x not found", hwnd));
892 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
893 return 0;
894 }
895
896 if(hwnd)
897 {
898 wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
899 if(wnd == NULL) {
900 dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
901 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
902 return 0;
903 }
904 if(flags & DCX_WINDOW_W) {
905 hWindow = wnd->getOS2FrameWindowHandle();
906 }
907 else hWindow = wnd->getOS2WindowHandle();
908 }
909
910 isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
911 && !(flags & (DCX_CACHE_W|DCX_WINDOW_W)));
912
913 if(isWindowOwnDC) //own dc always for client area
914 {
915 hps = wnd->getOwnDC();
916 if (hps)
917 {
918 pDCData pHps = (pDCData)GpiQueryDCData (hps);
919 if (!pHps)
920 goto error;
921
922 selectClientArea(wnd, pHps);
923
924 //TODO: Is this always necessary??
925 setPageXForm (wnd, pHps);
926 pHps->hdcType = TYPE_1;
927
928 //TODO: intersect/exclude clip region?
929 dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
930 return (HDC)hps;
931 }
932 else creatingOwnDC = TRUE;
933 }
934
935 if(isWindowOwnDC)
936 {
937 SIZEL sizel = {0,0};
938 hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
939 WinOpenWindowDC (hWindow),
940 &sizel, PU_PELS | GPIT_MICRO | GPIA_ASSOC );
941 psType = MICRO;
942 // default cp is OS/2 one: set to windows default (ODIN.INI)
943 GpiSetCp(hps, GetDisplayCodepage());
944 }
945 else
946 {
947 if (hWindow == HWND_DESKTOP) {
948 hps = WinGetScreenPS (hWindow);
949 }
950 else {
951 int clipstyle = 0;
952 int clipwnd = HWND_TOP;
953 if(flags & (DCX_USESTYLE_W)) {
954 int style = wnd->getStyle();
955 if(style & WS_CLIPCHILDREN_W) {
956 clipstyle |= PSF_CLIPCHILDREN;
957 }
958 if(style & WS_CLIPSIBLINGS_W) {
959 clipstyle |= PSF_CLIPSIBLINGS;
960 }
961 if(wnd->fHasParentDC()) {
962 clipstyle |= PSF_PARENTCLIP;
963 }
964 }
965 if(flags & DCX_CLIPSIBLINGS_W) {
966 clipstyle |= PSF_CLIPSIBLINGS;
967 }
968 if(flags & DCX_CLIPCHILDREN_W) {
969 clipstyle |= PSF_CLIPCHILDREN;
970 }
971 if(flags & DCX_PARENTCLIP_W) {
972 clipstyle |= PSF_PARENTCLIP;
973 }
974 if(clipstyle) {
975 dprintf2(("WinGetClipPS style %x", clipstyle));
976 hps = WinGetClipPS(hWindow, clipwnd, clipstyle);
977 }
978 else hps = WinGetPS (hWindow);
979
980 // default cp is OS/2 one: set to windows default (ODIN.INI)
981 GpiSetCp(hps, GetDisplayCodepage());
982 }
983 psType = MICRO_CACHED;
984 }
985
986 if (!hps)
987 goto error;
988
989 HPSToHDC (hWindow, hps, NULL, NULL);
990 pHps = (pDCData)GpiQueryDCData (hps);
991
992 if(flags & DCX_WINDOW_W) {
993 removeClientArea(wnd, pHps);
994 }
995 else selectClientArea(wnd, pHps);
996
997 setMapMode(wnd, pHps, MM_TEXT_W);
998
999 if ((flags & DCX_EXCLUDERGN_W) || (flags & DCX_INTERSECTRGN_W))
1000 {
1001 ULONG BytesNeeded;
1002 PRGNDATA RgnData;
1003 PRECT pr;
1004 int i;
1005 RECTL rectl;
1006
1007 if (!hrgn)
1008 goto error;
1009
1010 success = TRUE;
1011 if (flags & DCX_EXCLUDERGN_W)
1012 {
1013#if 0 //CB: todo
1014 long height;
1015
1016 BytesNeeded = GetRegionData (hrgn, 0, NULL);
1017 RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
1018 if (RgnData == NULL)
1019 goto error;
1020 GetRegionData (hrgn, BytesNeeded, RgnData);
1021
1022 i = RgnData->rdh.nCount;
1023 pr = (PRECT)(RgnData->Buffer);
1024
1025 if (flags & DCX_WINDOW_W)
1026 height = wnd->getWindowHeight();
1027 else height = wnd->getClientHeight();
1028
1029 for (; (i > 0) && success; i--, pr++) {
1030 LONG y = pr->yBottom;
1031
1032 pr->yBottom = height - pr->yTop;
1033 pr->yTop = height - y;
1034 success &= GpiExcludeClipRectangle (pHps->hps, pr);
1035 }
1036#endif
1037 }
1038 else //DCX_INTERSECTRGN_W
1039 {
1040 //SvL: I'm getting paint problems when clipping a dc created in GetDCEx
1041 // with a region that covers the entire window (RealPlayer 7 Update 1)
1042 // Using SelectClipRgn here doesn't make any difference.
1043 if(ExtSelectClipRgn(pHps->hps, hrgn, RGN_AND_W) == ERROR_W) {
1044 dprintf(("ExtSelectClipRgn failed!!"));
1045 }
1046 }
1047 if (!success)
1048 goto error;
1049 }
1050
1051 if (creatingOwnDC)
1052 wnd->setOwnDC ((HDC)hps);
1053
1054 pHps->psType = psType;
1055 pHps->hdcType = TYPE_1;
1056 //TODO: WM_SETREDRAW affects drawingAllowed flag!!
1057 GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
1058
1059 dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
1060 return (HDC)pHps->hps;
1061
1062error:
1063 /* Something went wrong; clean up
1064 */
1065 dprintf(("ERROR: GetDCEx hwnd %x (%x %x) FAILED!", hwnd, hrgn, flags));
1066 DebugInt3();
1067 if (pHps)
1068 {
1069 if (pHps->hps)
1070 {
1071 if(pHps->psType == MICRO_CACHED)
1072 WinReleasePS(pHps->hps);
1073 else
1074 GpiDestroyPS(pHps->hps);
1075 }
1076
1077 if (pHps->hdc) DevCloseDC(pHps->hdc);
1078 if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
1079
1080 O32_DeleteObject (pHps->nullBitmapHandle);
1081 }
1082 SetLastError(ERROR_INVALID_PARAMETER_W);
1083 return NULL;
1084}
1085//******************************************************************************
1086//******************************************************************************
1087HDC WIN32API GetDC (HWND hwnd)
1088{
1089 if(!hwnd)
1090 return GetDCEx( GetDesktopWindow(), 0, DCX_CACHE_W | DCX_WINDOW_W );
1091
1092 return GetDCEx (hwnd, NULL, 0);
1093}
1094//******************************************************************************
1095//******************************************************************************
1096HDC WIN32API GetWindowDC (HWND hwnd)
1097{
1098 if (!hwnd) hwnd = GetDesktopWindow();
1099 return GetDCEx (hwnd, NULL, DCX_WINDOW_W);
1100}
1101//******************************************************************************
1102//Helper for RedrawWindow (RDW_ALLCHILDREN_W)
1103//******************************************************************************
1104LRESULT WIN32API RedrawChildEnumProc(HWND hwnd, LPARAM lParam)
1105{
1106 RedrawWindow(hwnd, NULL, 0, lParam);
1107 return TRUE;
1108}
1109//******************************************************************************
1110// This implementation of RedrawWindow supports
1111// RDW_ERASE
1112// RDW_NOERASE
1113// RDW_INTERNALPAINT
1114// RDW_NOINTERNALPAINT
1115// RDW_INVALIDATE
1116// RDW_VALIDATE
1117// RDW_ERASENOW
1118// RDW_UPDATENOW
1119// RDW_FRAME
1120//
1121//TODO: Works ok for RDW_FRAME??
1122// SDK docs say RDW_FRAME is only valid for RDW_INVALIDATE...
1123//******************************************************************************
1124BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
1125{
1126 Win32BaseWindow *wnd;
1127
1128 if(pRect) {
1129 dprintf(("RedrawWindow %x (%d,%d)(%d,%d) %x %x", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, hrgn, redraw));
1130 }
1131 else dprintf(("RedrawWindow %x %x %x %x", hwnd, pRect, hrgn, redraw));
1132
1133 if (hwnd == NULLHANDLE)
1134 {
1135 hwnd = HWND_DESKTOP;
1136 wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
1137
1138 if (!wnd)
1139 {
1140 dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
1141 hwnd));
1142 SetLastError(ERROR_INVALID_PARAMETER_W);
1143 return FALSE;
1144 }
1145 }
1146 else
1147 {
1148 wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1149
1150 if (!wnd)
1151 {
1152 dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
1153 hwnd));
1154 SetLastError(ERROR_INVALID_PARAMETER_W);
1155 return FALSE;
1156 }
1157 if(redraw & RDW_FRAME_W) {
1158 hwnd = wnd->getOS2FrameWindowHandle();
1159 }
1160 else hwnd = wnd->getOS2WindowHandle();
1161 }
1162
1163 BOOL IncludeChildren = (redraw & RDW_ALLCHILDREN_W) ? TRUE : FALSE;
1164 BOOL success = TRUE;
1165 HPS hpsTemp = NULLHANDLE;
1166 HRGN hrgnTemp = NULLHANDLE;
1167 RECTL rectl;
1168
1169 if (hrgn)
1170 {
1171 ULONG BytesNeeded;
1172 PRGNDATA RgnData;
1173 PRECTL pr;
1174 int i;
1175 LONG height;
1176
1177 if(wnd) {
1178 height = (redraw & RDW_FRAME_W) ? wnd->getWindowHeight() : wnd->getClientHeight();
1179 }
1180 else height = OSLibQueryScreenHeight();
1181
1182 if (!hrgn)
1183 goto error;
1184
1185 BytesNeeded = GetRegionData (hrgn, 0, NULL);
1186 RgnData = (PRGNDATA)_alloca (BytesNeeded);
1187 if (RgnData == NULL)
1188 goto error;
1189 GetRegionData (hrgn, BytesNeeded, RgnData);
1190
1191 pr = (PRECTL)(RgnData->Buffer);
1192 for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
1193 LONG temp = pr->yTop;
1194 pr->yTop = height - pr->yBottom;
1195 pr->yBottom = height - temp;
1196 dprintf2(("RedrawWindow: region (%d,%d) (%d,%d)", pr->xLeft, pr->yBottom, pr->xRight, pr->yTop));
1197 }
1198
1199 hpsTemp = WinGetScreenPS (HWND_DESKTOP);
1200 hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
1201 if (!hrgnTemp) goto error;
1202 }
1203 else if (pRect)
1204 {
1205 if(wnd) {
1206 if(redraw & RDW_FRAME_W) {
1207 mapWin32ToOS2Rect(wnd->getWindowHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
1208 }
1209 else mapWin32ToOS2Rect(wnd->getClientHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
1210 }
1211 else mapWin32ToOS2Rect(OSLibQueryScreenHeight(), (PRECT)pRect, (PRECTLOS2)&rectl);
1212 }
1213
1214 if (redraw & RDW_INVALIDATE_W)
1215 {
1216 //TODO: SvL: pingpong.exe doesn't have RDW_NOERASE, but doesn't want WM_ERASEBKGND msgs
1217 if (redraw & RDW_ERASE_W) {
1218 wnd->setEraseBkgnd(TRUE);
1219 }
1220 else
1221 //Don't clear erase background flag if the window is
1222 //already (partly) invalidated
1223 if (!WinQueryUpdateRect (hwnd, NULL)) {
1224 wnd->setEraseBkgnd(FALSE);
1225 }
1226
1227 if (!pRect && !hrgn)
1228 success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
1229 else
1230 if (hrgn) {
1231 success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
1232 if(IncludeChildren && WinQueryUpdateRect(hwnd, NULL) == FALSE) {
1233 dprintf(("WARNING: WinQueryUpdateRect %x region %x returned false even though we just invalidated part of a window!!!", hwnd, hrgnTemp));
1234 success = success = WinInvalidateRegion (hwnd, hrgnTemp, FALSE);
1235 }
1236 }
1237 else {
1238 dprintf2(("WinInvalidateRect (%d,%d)(%d,%d)", rectl.xLeft, rectl.yBottom, rectl.xRight, rectl.yTop));
1239 success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
1240//SvL: If all children are included, then WinInvalidateRect is called
1241// with fIncludeChildren=1 -> rect of hwnd isn't invalidated if child(ren)
1242// overlap(s) the specified rectangle completely (EVEN if window doesn't
1243// have WS_CLIPCHILREN!)
1244// -> example: XWing vs Tie Fighter install window
1245// WinInvalidateRect with fIncludeChildren=0 invalidates both the parent
1246// and child windows
1247//SvL: Can't always set fIncludeChildren to FALSE or else some controls in
1248// the RealPlayer setup application aren't redrawn when invalidating
1249// their parent
1250// SO: Check if IncludeChildren is set and part of the window is invalid
1251// If not -> call WinInvalidateRect with IncludeChildren=0 to force
1252// the window rectangle to be invalidated
1253//
1254 if(IncludeChildren && WinQueryUpdateRect(hwnd, NULL) == FALSE) {
1255 dprintf(("WARNING: WinQueryUpdateRect %x (%d,%d)(%d,%d) returned false even though we just invalidated part of a window!!!", hwnd, rectl.xLeft, rectl.yBottom, rectl.xRight, rectl.yTop));
1256 success = WinInvalidateRect (hwnd, &rectl, FALSE);
1257 }
1258 }
1259
1260 if (!success) goto error;
1261 }
1262 else if (redraw & RDW_VALIDATE_W)
1263 {
1264 if (redraw & RDW_NOERASE_W)
1265 wnd->setEraseBkgnd(FALSE);
1266
1267 if (WinQueryUpdateRect (hwnd, NULL))
1268 {
1269 if(!pRect && !hrgn) {
1270 success = WinValidateRect (hwnd, NULL, IncludeChildren);
1271 }
1272 else
1273 if(hrgn) {
1274 success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
1275 }
1276 else {
1277 success = WinValidateRect (hwnd, &rectl, IncludeChildren);
1278 }
1279 if(!success) goto error;
1280 }
1281 }
1282
1283 if(WinQueryUpdateRect(hwnd, &rectl))
1284 {
1285 //TODO: Does this work if RDW_ALLCHILDREN is set??
1286 if(redraw & RDW_UPDATENOW_W) {
1287 RECT rectUpdate;
1288
1289 if(redraw & RDW_FRAME_W) {
1290 mapOS2ToWin32Rect(wnd->getWindowHeight(), (PRECTLOS2)&rectl, &rectUpdate);
1291 wnd->MsgNCPaint(&rectUpdate);
1292 }
1293
1294 wnd->MsgPaint(0, FALSE);
1295 }
1296 else
1297// if((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
1298 if(redraw & RDW_ERASENOW_W && wnd->needsEraseBkgnd())
1299 wnd->setEraseBkgnd(sendEraseBkgnd(wnd) == 0);
1300// if(redraw & RDW_ALLCHILDREN_W) {
1301// EnumChildWindows(wnd->getWindowHandle(), RedrawChildEnumProc, redraw);
1302// }
1303 }
1304 else if((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
1305 {
1306 if(redraw & RDW_UPDATENOW_W) {
1307 wnd->MsgPaint(0, FALSE);
1308 }
1309 else PostMessageA(hwnd, WINWM_PAINT, 0, 0);
1310 }
1311
1312error:
1313 /* clean up */
1314 if (hrgnTemp)
1315 GpiDestroyRegion (hpsTemp, hrgnTemp);
1316
1317 if (hpsTemp)
1318 WinReleasePS (hpsTemp);
1319
1320 if (!success) {
1321 dprintf(("RedrawWindow failure!"));
1322 SetLastError(ERROR_INVALID_PARAMETER_W);
1323 }
1324 return (success);
1325}
1326//******************************************************************************
1327//******************************************************************************
1328BOOL WIN32API UpdateWindow (HWND hwnd)
1329{
1330 Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1331 RECTL rectl;
1332 BOOL rc;
1333
1334 if(!wnd) {
1335 dprintf (("ERROR: User32: UpdateWindow INVALID hwnd %x", hwnd));
1336 SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
1337 return FALSE;
1338 }
1339
1340#ifdef DEBUG
1341 if(WinQueryUpdateRect(wnd->getOS2WindowHandle(), &rectl))
1342 {
1343 RECT rectUpdate;
1344 mapOS2ToWin32Rect(wnd->getClientHeight(), (PRECTLOS2)&rectl, &rectUpdate);
1345
1346 dprintf (("User32: UpdateWindow hwnd %x: update rectangle (%d,%d)(%d,%d)", hwnd, rectUpdate.left, rectUpdate.top, rectUpdate.right, rectUpdate.bottom));
1347 }
1348 else dprintf (("User32: UpdateWindow hwnd %x; EMPTY update rectangle (vis=%d/%d, show=%d/%d)", hwnd, WinIsWindowVisible(wnd->getOS2FrameWindowHandle()), WinIsWindowVisible(wnd->getOS2WindowHandle()), WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle())));
1349#endif
1350 //SvL: This doesn't work right (Wine uses RDW_NOCHILDREN_W -> doesn't work here)
1351 // Breaks vpbuddy
1352 //rc = RedrawWindow(hwnd, NULL, 0, RDW_UPDATENOW_W | RDW_ALLCHILDREN_W);
1353 // -> RDW_UPDATENOW causes WM_PAINT messages to be directy posted to window
1354 // handler; possibly bypassing queued WM_PAINT messages for parent window(s)
1355 // -> out of sync painting (i.e. parent paints over child)
1356
1357// if(!WinIsWindowShowing(wnd->getOS2FrameWindowHandle()) || !WinIsWindowShowing(wnd->getOS2WindowHandle())) {
1358// dprintf(("UpdateWindow: window not showing %d/%d", WinIsWindowShowing(wnd->getOS2FrameWindowHandle()), WinIsWindowShowing(wnd->getOS2WindowHandle()) ));
1359// return FALSE;
1360// }
1361 //Must use frame window here. If the frame window has a valid update region and we call
1362 //WinUpdateWindow for the client window, then no WM_PAINT messages will be sent.
1363 rc = WinUpdateWindow(wnd->getOS2FrameWindowHandle());
1364#ifdef DEBUG
1365 if(WinQueryUpdateRect(wnd->getOS2WindowHandle(), NULL))
1366 {
1367 //if parent has valid update region then WinUpdateWindow will still fail..
1368 //might be harmless and happen even in windows
1369 dprintf (("ERROR: User32: UpdateWindow didn't send WM_PAINT messages!!"));
1370 }
1371#endif
1372 return rc;
1373}
1374//******************************************************************************
1375//******************************************************************************
1376BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1377{
1378 if(lprc) {
1379 dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1380 }
1381 else dprintf(("USER32: ValidateRect %x", hwnd));
1382
1383 return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W | RDW_NOCHILDREN_W | (hwnd==0 ? RDW_UPDATENOW_W : 0));
1384}
1385//******************************************************************************
1386//******************************************************************************
1387BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1388{
1389 dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1390 return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W | RDW_NOCHILDREN_W | (hwnd==0 ? RDW_UPDATENOW_W : 0));
1391}
1392//******************************************************************************
1393//******************************************************************************
1394BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1395{
1396 BOOL result;
1397
1398 if(pRect) {
1399 dprintf(("InvalidateRect %x (%d,%d)(%d,%d) erase=%d", hwnd, pRect->left, pRect->top, pRect->right, pRect->bottom, erase));
1400 }
1401 else dprintf(("InvalidateRect %x NULL erase=%d", hwnd, erase));
1402#if 1
1403 result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1404 RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
1405 (erase ? RDW_ERASE_W : 0) |
1406 (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1407#else
1408 result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1409 RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
1410 (erase ? RDW_ERASE_W : RDW_NOERASE_W) |
1411 (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1412#endif
1413 return (result);
1414}
1415//******************************************************************************
1416//******************************************************************************
1417BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1418{
1419 BOOL result;
1420
1421 dprintf(("InvalidateRgn %x %x erase=%d", hwnd, hrgn, erase));
1422#if 1
1423 result = RedrawWindow (hwnd, NULL, hrgn,
1424 RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
1425 (erase ? RDW_ERASE_W : 0) |
1426 (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1427#else
1428 result = RedrawWindow (hwnd, NULL, hrgn,
1429 RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
1430 (erase ? RDW_ERASE_W : RDW_NOERASE_W) |
1431 (hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1432#endif
1433 return (result);
1434}
1435//******************************************************************************
1436//TODO: Change for client rectangle!!!!!
1437//******************************************************************************
1438BOOL setPMRgnIntoWinRgn (HPS hps, HRGN hrgnPM, HRGN hrgnWin, LONG height)
1439{
1440 BOOL rc;
1441 RGNRECT rgnRect;
1442 rgnRect.ircStart = 1;
1443 rgnRect.crc = 0;
1444 rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT;
1445
1446 rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1447
1448 if (rc && (rgnRect.crcReturned > 0))
1449 {
1450 PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1451 PRECTL pRcl = Rcls;
1452
1453 if (Rcls != NULL)
1454 {
1455 rgnRect.crc = rgnRect.crcReturned;
1456 rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1457
1458 rc = SetRectRgn(hrgnWin, pRcl->xLeft, height - pRcl->yTop,
1459 pRcl->xRight, height - pRcl->yBottom);
1460
1461 if (rgnRect.crcReturned > 1)
1462 {
1463 int i;
1464 HRGN temp;
1465 temp = CreateRectRgn (0, 0, 1, 1);
1466
1467 for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1468 {
1469 rc = SetRectRgn (temp, pRcl->xLeft, height - pRcl->yTop,
1470 pRcl->xRight, height - pRcl->yBottom);
1471 rc &= CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1472 }
1473 DeleteObject (temp);
1474 }
1475 delete[] Rcls;
1476 }
1477 else
1478 {
1479 rc = FALSE;
1480 }
1481 }
1482 else
1483 {
1484 rc = SetRectRgn (hrgnWin, 0, 0, 0, 0);
1485 }
1486
1487 return (rc);
1488}
1489//******************************************************************************
1490//TODO: Check if this one works correctly...
1491//Have to check if dc is for frame or client!!
1492//******************************************************************************
1493BOOL WIN32API ScrollDC(HDC hDC, int dx, int dy, const RECT *pScroll,
1494 const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1495{
1496 Win32BaseWindow *wnd;
1497 BOOL rc = TRUE;
1498
1499 if (!hDC)
1500 {
1501 dprintf (("USER32: ScrollDC %x (%d,%d), %x %x %x %x -> invalid hdc", hDC, dx, dy, pScroll, pClip, hrgnUpdate, pRectUpdate));
1502 return (FALSE);
1503 }
1504
1505 pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1506 HWND hwnd = pHps->hwnd;
1507 if(pHps->isClient) {
1508 wnd = Win32BaseWindow::GetWindowFromOS2Handle (hwnd);
1509 }
1510 else {
1511 //assume (for now) that this is not allowed (TODO)
1512 dprintf (("USER32: ScrollDC %x (%d,%d), %x %x %x %x", hDC, dx, dy, pScroll, pClip, hrgnUpdate, pRectUpdate));
1513 dprintf(("ScrollDC used for frame HDC!!"));
1514 DebugInt3();
1515 return FALSE;
1516 }
1517 if((hwnd == NULLHANDLE) || !wnd)
1518 {
1519 dprintf (("USER32: ScrollDC %x (%d,%d), %x %x %x %x -> invalid window handle", hDC, dx, dy, pScroll, pClip, hrgnUpdate, pRectUpdate));
1520 return (FALSE);
1521 }
1522
1523 dprintf (("USER32: ScrollDC %x (hwnd %x) (%d,%d), %x %x %x %x", hDC, wnd->getWindowHandle(), dx, dy, pScroll, pClip, hrgnUpdate, pRectUpdate));
1524 POINTL ptl[2] = { 0, 0, dx, dy };
1525
1526 GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1527 dx = (int)(ptl[1].x - ptl[0].x);
1528 dy = (int)(ptl[1].y - ptl[0].y);
1529
1530 RECT scrollRect;
1531 RECT clipRect;
1532
1533 if (pClip)
1534 {
1535 dprintf (("ScrollDC: Clip rectangle (%d,%d)(%d,%d)", pClip->left, pClip->top, pClip->right, pClip->bottom));
1536#if 1
1537 clipRect = *pClip;
1538 LPtoDP(hDC, (LPPOINT)&clipRect, 2);
1539#else
1540 memcpy(&clipRect, pClip, sizeof(clipRect));
1541
1542 if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1543 (clipRect.left != clipRect.right) &&
1544 (clipRect.bottom != clipRect.top))
1545 {
1546 if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1547 clipRect.right -= abs(pHps->worldXDeltaFor1Pixel);
1548 else
1549 clipRect.left += abs(pHps->worldXDeltaFor1Pixel);
1550
1551 if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1552 clipRect.bottom -= abs(pHps->worldYDeltaFor1Pixel);
1553 else
1554 clipRect.top += abs(pHps->worldYDeltaFor1Pixel);
1555 }
1556 GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1557 if (clipRect.right < clipRect.left) {
1558 ULONG temp = clipRect.left;
1559 clipRect.left = clipRect.right;
1560 clipRect.right = temp;
1561 }
1562 if (clipRect.bottom < clipRect.top) {
1563 ULONG temp = clipRect.top;
1564 clipRect.top = clipRect.bottom;
1565 clipRect.bottom = temp;
1566 }
1567#endif
1568 }
1569
1570 if (pScroll)
1571 {
1572#if 1
1573 dprintf (("ScrollDC: Scroll rectangle (%d,%d)(%d,%d)", pScroll->left, pScroll->top, pScroll->right, pScroll->bottom));
1574 scrollRect = *pScroll;
1575 LPtoDP(hDC, (LPPOINT)&scrollRect, 2);
1576#else
1577 memcpy(&scrollRect, pScroll, sizeof(scrollRect));
1578
1579 if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1580 (scrollRect.left != scrollRect.right) &&
1581 (scrollRect.top != scrollRect.bottom))
1582 {
1583 if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1584 scrollRect.right -= abs(pHps->worldXDeltaFor1Pixel);
1585 else
1586 scrollRect.left += abs(pHps->worldXDeltaFor1Pixel);
1587
1588 if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1589 scrollRect.bottom -= abs(pHps->worldYDeltaFor1Pixel);
1590 else
1591 scrollRect.top += abs(pHps->worldYDeltaFor1Pixel);
1592 }
1593 GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1594 if (scrollRect.right < scrollRect.left) {
1595 ULONG temp = scrollRect.left;
1596 scrollRect.left = scrollRect.right;
1597 scrollRect.right = temp;
1598 }
1599 if (scrollRect.bottom < scrollRect.top) {
1600 ULONG temp = scrollRect.top;
1601 scrollRect.top = scrollRect.bottom;
1602 scrollRect.bottom = temp;
1603 }
1604#endif
1605 }
1606 RECTL rectlUpdate;
1607 HRGN hrgn = NULLHANDLE;
1608 RECTL clipOS2;
1609 RECTL scrollOS2;
1610 PRECTL pScrollOS2 = NULL;
1611 PRECTL pClipOS2 = NULL;
1612 HPS hpsScreen = 0;
1613
1614 if(pScroll) {
1615 mapWin32ToOS2Rect(wnd->getClientHeight(), &scrollRect, (PRECTLOS2)&scrollOS2);
1616 pScrollOS2 = &scrollOS2;
1617 dprintf2(("ScrollDC: PM Scroll rectangle (%d,%d)(%d,%d)", pScrollOS2->xLeft, pScrollOS2->yBottom, pScrollOS2->xRight, pScrollOS2->yTop));
1618 }
1619
1620 if(pClip) {
1621 mapWin32ToOS2Rect(wnd->getClientHeight(), &clipRect, (PRECTLOS2)&clipOS2);
1622 pClipOS2 = &clipOS2;
1623 dprintf2(("ScrollDC: PM Clip rectangle (%d,%d)(%d,%d)", pClipOS2->xLeft, pClipOS2->yBottom, pClipOS2->xRight, pClipOS2->yTop));
1624 }
1625
1626 if(hrgnUpdate) {
1627 RECTL rectl = { 1, 1, 2, 2 };
1628
1629 hpsScreen = WinGetScreenPS (HWND_DESKTOP);
1630 hrgn = GpiCreateRegion(hpsScreen, 1, &rectl);
1631 }
1632
1633 LONG lComplexity = WinScrollWindow(hwnd, dx, dy, pScrollOS2,
1634 pClipOS2, hrgn, &rectlUpdate, 0);
1635 if (lComplexity == RGN_ERROR)
1636 {
1637 dprintf(("ScrollDC: lComplexity == RGN_ERROR" ));
1638 return (FALSE);
1639 }
1640
1641 RECT winRectUpdate;
1642
1643 dprintf2(("ScrollDC: PM Update rectangle (%d,%d)(%d,%d)", rectlUpdate.xLeft, rectlUpdate.yBottom, rectlUpdate.xRight, rectlUpdate.yTop));
1644
1645 mapOS2ToWin32Rect(wnd->getClientHeight(), (PRECTLOS2)&rectlUpdate, &winRectUpdate);
1646
1647 dprintf2(("ScrollDC: Update rectangle (%d,%d)(%d,%d)", winRectUpdate.left, winRectUpdate.top, winRectUpdate.right, winRectUpdate.bottom));
1648
1649 if (pRectUpdate)
1650 *pRectUpdate = winRectUpdate;
1651
1652 if (hrgnUpdate) {
1653 rc = setPMRgnIntoWinRgn(hpsScreen, hrgn, hrgnUpdate, wnd->getClientHeight());
1654 GpiDestroyRegion(hpsScreen, hrgn);
1655 WinReleasePS(hpsScreen);
1656 }
1657
1658 return (rc);
1659}
1660//******************************************************************************
1661//Using WinScrollWindow to scroll child windows is better (smoother).
1662//******************************************************************************
1663INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT *pScroll, const RECT *pClip,
1664 HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1665{
1666 Win32BaseWindow *window;
1667 APIRET rc;
1668 RECTL scrollRect;
1669 RECTL clipRect;
1670 PRECTL pScrollOS2 = NULL;
1671 PRECTL pClipOS2 = NULL;
1672 ULONG scrollFlagsOS2 = 0;
1673 int orgdy = dy;
1674 int regionType = ERROR_W;
1675
1676 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1677 if(!window) {
1678 dprintf(("ScrollWindowEx, window %x not found", hwnd));
1679 return 0;
1680 }
1681
1682 dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1683
1684 dy = revertDy (window, dy);
1685
1686 if (scrollFlag & SW_INVALIDATE_W) scrollFlagsOS2 |= SW_INVALIDATERGN;
1687 if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlagsOS2 |= SW_SCROLLCHILDREN;
1688
1689 if(pScroll) {
1690 mapWin32ToOS2Rect(window->getClientHeight(), (RECT *)pScroll, (PRECTLOS2)&scrollRect);
1691 pScrollOS2 = &scrollRect;
1692 }
1693
1694 if(pClip) {
1695 mapWin32ToOS2Rect(window->getClientHeight(), (RECT *)pClip, (PRECTLOS2)&clipRect);
1696 pClipOS2 = &clipRect;
1697 }
1698
1699 RECTL rectlUpdate;
1700 HRGN hrgn = NULLHANDLE;
1701 HPS hpsScreen = 0;
1702
1703 if(hrgnUpdate) {
1704 RECTL rectl = { 1, 1, 2, 2 };
1705
1706 hpsScreen = WinGetScreenPS (HWND_DESKTOP);
1707 hrgn = GpiCreateRegion(hpsScreen, 1, &rectl);
1708 }
1709
1710 if (scrollFlag & SW_SMOOTHSCROLL_W)
1711 {
1712 INT time = (scrollFlag >> 16) & 0xFFFF;
1713
1714 //CB: todo, scroll in several steps
1715 // is time in ms? time <-> iteration count?
1716 }
1717
1718 LONG lComplexity = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1719 pScrollOS2, pClipOS2,
1720 hrgn, &rectlUpdate, scrollFlagsOS2);
1721 if (lComplexity == RGN_ERROR)
1722 {
1723 return ERROR_W;
1724 }
1725
1726 //Notify children that they have moved (according to the SDK docs,
1727 //they only receive a WM_MOVE message)
1728 //(PM only does this for windows with CS_MOVENOTIFY class)
1729 //TODO: Verify this (no WM_WINDOWPOSCHANGING/ED?)
1730 if (scrollFlag & SW_SCROLLCHILDREN_W)
1731 {
1732 HWND hwndChild;
1733 RECT rectChild, rc;
1734
1735 dprintf(("ScrollWindowEx: Scroll child windows"));
1736 GetClientRect(hwnd, &rc);
1737 if (pScroll) IntersectRect(&rc, &rc, pScroll);
1738
1739 hwndChild = GetWindow(hwnd, GW_CHILD_W);
1740
1741 while(hwndChild)
1742 {
1743 Win32BaseWindow *child;
1744
1745 child = Win32BaseWindow::GetWindowFromHandle(hwndChild);
1746 if(!child) {
1747 dprintf(("ERROR: ScrollWindowEx, child %x not found", hwnd));
1748 return 0;
1749 }
1750 rectChild = *child->getWindowRect();
1751 if(!pScroll || IntersectRect(&rectChild, &rectChild, &rc))
1752 {
1753 dprintf(("ScrollWindowEx: Scroll child window %x", hwndChild));
1754 child->ScrollWindow(dx, orgdy);
1755 }
1756 hwndChild = GetWindow(hwndChild, GW_HWNDNEXT_W);
1757 }
1758 dprintf(("***ScrollWindowEx: Scroll child windows DONE"));
1759 }
1760
1761 RECT winRectUpdate;
1762
1763 mapOS2ToWin32Rect(window->getClientHeight(), (PRECTLOS2)&rectlUpdate, &winRectUpdate);
1764
1765 if (pRectUpdate)
1766 *pRectUpdate = winRectUpdate;
1767
1768 if (hrgnUpdate) {
1769 rc = setPMRgnIntoWinRgn(hpsScreen, hrgn, hrgnUpdate, window->getClientHeight());
1770 GpiDestroyRegion(hpsScreen, hrgn);
1771 WinReleasePS(hpsScreen);
1772 }
1773
1774#if 0
1775 //SvL: WinScrollWindow already invalidates the area; no need to do it again
1776 //(call to invalidateRect was wrong; has to include erase flag)
1777 if ((scrollFlag & SW_INVALIDATE_W) &&
1778 ((lComplexity == RGN_RECT) || (lComplexity == RGN_COMPLEX)))
1779 {
1780 rc = RedrawWindow (hwnd, &winRectUpdate, NULLHANDLE,
1781 RDW_ALLCHILDREN_W | RDW_INVALIDATE_W |
1782 ((scrollFlag & SW_ERASE_W) ? RDW_ERASE_W : 0) |
1783 RDW_UPDATENOW_W);
1784
1785// rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
1786 if (rc == FALSE)
1787 {
1788 return (0);
1789 }
1790 }
1791#endif
1792
1793 switch (lComplexity)
1794 {
1795 case RGN_NULL:
1796 regionType = NULLREGION_W;
1797 break;
1798 case RGN_RECT:
1799 regionType = SIMPLEREGION_W;
1800 break;
1801 case RGN_COMPLEX:
1802 regionType = COMPLEXREGION_W;
1803 break;
1804 default:
1805 regionType = ERROR_W;
1806 break;
1807 }
1808
1809 return (regionType);
1810}
1811//******************************************************************************
1812//******************************************************************************
1813BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT *pScroll, const RECT *pClip)
1814{
1815 Win32BaseWindow *window;
1816
1817 window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1818 if(!window) {
1819 dprintf(("ScrollWindow, window %x not found", hwnd));
1820 return 0;
1821 }
1822 dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1823 return (ERROR_W != ScrollWindowEx(hwnd, dx, dy, pScroll, pClip, 0, NULL,
1824 (pScroll ? 0 : SW_SCROLLCHILDREN_W) |
1825 SW_INVALIDATE_W ));
1826}
1827//******************************************************************************
1828//******************************************************************************
1829HWND WIN32API WindowFromDC(HDC hdc)
1830{
1831 pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1832
1833 dprintf2(("USER32: WindowFromDC %x", hdc));
1834 if ( pHps )
1835 return OS2ToWin32Handle(pHps->hwnd);
1836 else
1837 return 0;
1838}
1839//******************************************************************************
1840//******************************************************************************
1841
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