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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: dc.cpp
3 // Purpose: wxDC class
4 // Author: David Webster
5 // Modified by:
6 // Created: 10/14/99
7 // RCS-ID: $Id$
8 // Copyright: (c) David Webster
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
14
15 #ifndef WX_PRECOMP
16 #include "wx/window.h"
17 #include "wx/dc.h"
18 #include "wx/utils.h"
19 #include "wx/dialog.h"
20 #include "wx/app.h"
21 #include "wx/bitmap.h"
22 #include "wx/dcmemory.h"
23 #include "wx/log.h"
24 #include "wx/icon.h"
25 #include "wx/msgdlg.h"
26 #if wxUSE_STATUSBAR
27 #include "wx/statusbr.h"
28 #endif
29 #endif
30
31 #include "wx/module.h"
32 #include "wx/dcprint.h"
33
34 #include <string.h>
35
36 #include "wx/os2/private.h"
37
38 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
39
40 //
41 // wxWidgets uses the Microsoft convention that the origin is the UPPER left.
42 // Native OS/2 however in the GPI and PM define the origin as the LOWER left.
43 // In order to map OS/2 GPI/PM y coordinates to wxWidgets coordinates we must
44 // perform the following transformation:
45 //
46 // Parent object height: POBJHEIGHT
47 // Desried origin: WXORIGINY
48 // Object to place's height: OBJHEIGHT
49 //
50 // To get the OS2 position from the wxWidgets one:
51 //
52 // OS2Y = POBJHEIGHT - (WXORIGINY + OBJHEIGHT)
53 //
54 // For OS/2 wxDC's we will always determine m_vRclPaint as the size of the
55 // OS/2 Presentation Space associated with the device context. y is the
56 // desired application's y coordinate of the origin in wxWidgets space.
57 // objy is the height of the object we are going to draw.
58 //
59 #define OS2Y(y, objy) ((m_vRclPaint.yTop - m_vRclPaint.yBottom) - (y + objy))
60
61 // ---------------------------------------------------------------------------
62 // constants
63 // ---------------------------------------------------------------------------
64
65 static const int VIEWPORT_EXTENT = 1000;
66
67 static const int MM_POINTS = 9;
68 static const int MM_METRIC = 10;
69
70 // ---------------------------------------------------------------------------
71 // private functions
72 // ---------------------------------------------------------------------------
73
74 // convert degrees to radians
75 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
76
77 int SetTextColor(
78 HPS hPS
79 , int nForegroundColour
80 )
81 {
82 CHARBUNDLE vCbnd;
83
84 vCbnd.lColor = nForegroundColour;
85 ::GpiSetAttrs( hPS // presentation-space handle
86 ,PRIM_CHAR // Char primitive.
87 ,CBB_COLOR // sets color.
88 ,0 //
89 ,&vCbnd // buffer for attributes.
90 );
91 return 0;
92 }
93
94 int QueryTextBkColor(
95 HPS hPS
96 )
97 {
98 CHARBUNDLE vCbnd;
99
100 ::GpiQueryAttrs( hPS // presentation-space handle
101 ,PRIM_CHAR // Char primitive.
102 ,CBB_BACK_COLOR // Background color.
103 ,&vCbnd // buffer for attributes.
104 );
105 return vCbnd.lBackColor;
106 }
107
108
109 int SetTextBkColor(
110 HPS hPS
111 , int nBackgroundColour
112 )
113 {
114 CHARBUNDLE vCbnd;
115 int rc;
116
117 rc = QueryTextBkColor(hPS);
118
119 vCbnd.lBackColor = nBackgroundColour;
120 ::GpiSetAttrs(hPS, // presentation-space handle
121 PRIM_CHAR, // Char primitive.
122 CBB_BACK_COLOR, // sets color.
123 0,
124 &vCbnd // buffer for attributes.
125 );
126 return rc;
127 }
128
129 int SetBkMode(
130 HPS hPS
131 , int nBackgroundMode
132 )
133 {
134 if(nBackgroundMode == wxTRANSPARENT)
135 ::GpiSetBackMix( hPS
136 ,BM_LEAVEALONE
137 );
138 else
139 // the background of the primitive takes over whatever is underneath.
140 ::GpiSetBackMix( hPS
141 ,BM_OVERPAINT
142 );
143 return 0;
144 }
145
146 // ===========================================================================
147 // implementation
148 // ===========================================================================
149
150 #if wxUSE_DC_CACHEING
151
152 /*
153 * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will
154 * improve it in due course, either using arrays, or simply storing pointers to one
155 * entry for the bitmap, and two for the DCs. -- JACS
156 */
157
158 // ---------------------------------------------------------------------------
159 // wxDCCacheEntry
160 // ---------------------------------------------------------------------------
161
162 wxList wxDC::m_svBitmapCache;
163 wxList wxDC::m_svDCCache;
164
165 wxDCCacheEntry::wxDCCacheEntry(
166 WXHBITMAP hBitmap
167 , int nWidth
168 , int nHeight
169 , int nDepth
170 )
171 {
172 m_hBitmap = hBitmap;
173 m_hPS = NULLHANDLE;
174 m_nWidth = nWidth;
175 m_nHeight = nHeight;
176 m_nDepth = nDepth;
177 } // end of wxDCCacheEntry::wxDCCacheEntry
178
179 wxDCCacheEntry::wxDCCacheEntry(
180 HPS hPS
181 , int nDepth
182 )
183 {
184 m_hBitmap = NULLHANDLE;
185 m_hPS = hPS;
186 m_nWidth = 0;
187 m_nHeight = 0;
188 m_nDepth = nDepth;
189 } // end of wxDCCacheEntry::wxDCCacheEntry
190
191 wxDCCacheEntry::~wxDCCacheEntry()
192 {
193 if (m_hBitmap)
194 ::GpiDeleteBitmap(m_hBitmap);
195 if (m_hPS)
196 ::GpiDestroyPS(m_hPS);
197 } // end of wxDCCacheEntry::~wxDCCacheEntry
198
199 wxDCCacheEntry* wxDC::FindBitmapInCache(
200 HPS hPS
201 , int nWidth
202 , int nHeight
203 )
204 {
205 int nDepth = 24; // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
206 wxNode* pNode = m_svBitmapCache.First();
207 BITMAPINFOHEADER2 vBmpHdr;
208
209 while(pNode)
210 {
211 wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data();
212
213 if (pEntry->m_nDepth == nDepth)
214 {
215 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
216
217 if (pEntry->m_nWidth < nWidth || pEntry->m_nHeight < nHeight)
218 {
219 ::GpiDeleteBitmap((HBITMAP)pEntry->m_hBitmap);
220 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
221 vBmpHdr.cx = nWidth;
222 vBmpHdr.cy = nHeight;
223 vBmpHdr.cPlanes = 1;
224 vBmpHdr.cBitCount = nDepth;
225
226 pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
227 ,&vBmpHdr
228 ,0L, NULL, NULL
229 );
230 if (!pEntry->m_hBitmap)
231 {
232 wxLogLastError(wxT("CreateCompatibleBitmap"));
233 }
234 pEntry->m_nWidth = nWidth;
235 pEntry->m_nHeight = nHeight;
236 return pEntry;
237 }
238 return pEntry;
239 }
240 pNode = pNode->Next();
241 }
242 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
243 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
244 vBmpHdr.cx = nWidth;
245 vBmpHdr.cy = nHeight;
246 vBmpHdr.cPlanes = 1;
247 vBmpHdr.cBitCount = nDepth;
248
249 WXHBITMAP hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
250 ,&vBmpHdr
251 ,0L, NULL, NULL
252 );
253 if (!hBitmap)
254 {
255 wxLogLastError(wxT("CreateCompatibleBitmap"));
256 }
257 wxDCCacheEntry* pEntry = new wxDCCacheEntry( hBitmap
258 ,nWidth
259 ,nHeight
260 ,nDepth
261 );
262 AddToBitmapCache(pEntry);
263 return pEntry;
264 } // end of FindBitmapInCache
265
266 wxDCCacheEntry* wxDC::FindDCInCache(
267 wxDCCacheEntry* pNotThis
268 , HPS hPS
269 )
270 {
271 int nDepth = 24; // we'll fix this up later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
272 wxNode* pNode = m_svDCCache.First();
273
274 while(pNode)
275 {
276 wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data();
277
278 //
279 // Don't return the same one as we already have
280 //
281 if (!pNotThis || (pNotThis != pEntry))
282 {
283 if (pEntry->m_nDepth == nDepth)
284 {
285 return pEntry;
286 }
287 }
288 pNode = pNode->Next();
289 }
290 wxDCCacheEntry* pEntry = new wxDCCacheEntry( hPS
291 ,nDepth
292 );
293 AddToDCCache(pEntry);
294 return pEntry;
295 } // end of wxDC::FindDCInCache
296
297 void wxDC::AddToBitmapCache(
298 wxDCCacheEntry* pEntry
299 )
300 {
301 m_svBitmapCache.Append(pEntry);
302 } // end of wxDC::AddToBitmapCache
303
304 void wxDC::AddToDCCache(
305 wxDCCacheEntry* pEntry
306 )
307 {
308 m_svDCCache.Append(pEntry);
309 } // end of wxDC::AddToDCCache
310
311 void wxDC::ClearCache()
312 {
313 m_svBitmapCache.DeleteContents(true);
314 m_svBitmapCache.Clear();
315 m_svBitmapCache.DeleteContents(false);
316 m_svDCCache.DeleteContents(true);
317 m_svDCCache.Clear();
318 m_svDCCache.DeleteContents(false);
319 } // end of wxDC::ClearCache
320
321 // Clean up cache at app exit
322 class wxDCModule : public wxModule
323 {
324 public:
325 virtual bool OnInit() { return true; }
326 virtual void OnExit() { wxDC::ClearCache(); }
327
328 private:
329 DECLARE_DYNAMIC_CLASS(wxDCModule)
330 }; // end of CLASS wxDCModule
331
332 IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
333
334 #endif // ndef for wxUSE_DC_CACHEING
335
336 // ---------------------------------------------------------------------------
337 // wxDC
338 // ---------------------------------------------------------------------------
339
340 wxDC::wxDC(void)
341 {
342 m_pCanvas = NULL;
343
344 m_hOldBitmap = 0;
345 m_hOldPen = 0;
346 m_hOldBrush = 0;
347 m_hOldFont = 0;
348 m_hOldPalette = 0;
349
350 m_bOwnsDC = false;
351 m_hDC = 0;
352 m_hOldPS = NULL;
353 m_hPS = NULL;
354 m_bIsPaintTime = false; // True at Paint Time
355
356 wxColour vColor( wxT("BLACK") );
357 m_pen.SetColour(vColor);
358
359 vColor.Set( wxT("WHITE") );
360 m_brush.SetColour(vColor);
361
362 } // end of wxDC::wxDC
363
364 wxDC::~wxDC(void)
365 {
366 if ( m_hDC != 0 )
367 {
368 SelectOldObjects(m_hDC);
369
370 // if we own the HDC, we delete it, otherwise we just release it
371
372 if (m_bOwnsDC)
373 {
374 if(m_hPS)
375 {
376 ::GpiAssociate(m_hPS, NULLHANDLE);
377 ::GpiDestroyPS(m_hPS);
378 }
379 m_hPS = NULLHANDLE;
380 ::DevCloseDC((HDC)m_hDC);
381 }
382 else
383 {
384 //
385 // Just Dissacociate, not destroy if we don't own the DC
386 //
387 if(m_hPS)
388 {
389 ::GpiAssociate(m_hPS, NULLHANDLE);
390 }
391 }
392 }
393 } // end of wxDC::~wxDC
394
395 // This will select current objects out of the DC,
396 // which is what you have to do before deleting the
397 // DC.
398 void wxDC::SelectOldObjects(
399 WXHDC hPS
400 )
401 {
402 if (hPS)
403 {
404 if (m_hOldBitmap)
405 {
406 ::GpiSetBitmap(hPS, (HBITMAP) m_hOldBitmap);
407 if (m_vSelectedBitmap.Ok())
408 {
409 m_vSelectedBitmap.SetSelectedInto(NULL);
410 }
411 }
412 m_hOldBitmap = 0;
413 //
414 // OS/2 has no other native GDI objects to set in a PS/DC like windows
415 //
416 m_hOldPen = 0;
417 m_hOldBrush = 0;
418 m_hOldFont = 0;
419 m_hOldPalette = 0;
420 }
421
422 m_brush = wxNullBrush;
423 m_pen = wxNullPen;
424 m_palette = wxNullPalette;
425 m_font = wxNullFont;
426 m_backgroundBrush = wxNullBrush;
427 m_vSelectedBitmap = wxNullBitmap;
428 } // end of wxDC::SelectOldObjects
429
430 // ---------------------------------------------------------------------------
431 // clipping
432 // ---------------------------------------------------------------------------
433
434 #define DO_SET_CLIPPING_BOX() \
435 { \
436 RECTL rect; \
437 \
438 ::GpiQueryClipBox(m_hPS, &rect); \
439 \
440 m_clipX1 = (wxCoord) XDEV2LOG(rect.xLeft); \
441 m_clipY1 = (wxCoord) YDEV2LOG(rect.yTop); \
442 m_clipX2 = (wxCoord) XDEV2LOG(rect.xRight); \
443 m_clipY2 = (wxCoord) YDEV2LOG(rect.yBottom); \
444 }
445
446 void wxDC::DoSetClippingRegion(
447 wxCoord vX
448 , wxCoord vY
449 , wxCoord vWidth
450 , wxCoord vHeight
451 )
452 {
453 RECTL vRect;
454
455 vY = OS2Y(vY,vHeight);
456 m_clipping = true;
457 vRect.xLeft = vX;
458 vRect.yTop = vY + vHeight;
459 vRect.xRight = vX + vWidth;
460 vRect.yBottom = vY;
461 ::GpiIntersectClipRectangle(m_hPS, &vRect);
462 DO_SET_CLIPPING_BOX()
463 } // end of wxDC::DoSetClippingRegion
464
465 void wxDC::DoSetClippingRegionAsRegion(
466 const wxRegion& rRegion
467 )
468 {
469 wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
470 HRGN hRgnOld;
471
472 m_clipping = true;
473 ::GpiSetClipRegion( m_hPS
474 ,(HRGN)rRegion.GetHRGN()
475 ,&hRgnOld
476 );
477 DO_SET_CLIPPING_BOX()
478 } // end of wxDC::DoSetClippingRegionAsRegion
479
480 void wxDC::DestroyClippingRegion(void)
481 {
482 if (m_clipping && m_hPS)
483 {
484 HRGN hRgnOld;
485 RECTL vRect;
486
487 // TODO: this should restore the previous clipped region
488 // so that OnPaint processing works correctly, and
489 // the update doesn't get destroyed after the first
490 // DestroyClippingRegion
491 vRect.xLeft = XLOG2DEV(0);
492 vRect.yTop = YLOG2DEV(32000);
493 vRect.xRight = XLOG2DEV(32000);
494 vRect.yBottom = YLOG2DEV(0);
495
496 HRGN hRgn = ::GpiCreateRegion(m_hPS, 1, &vRect);
497
498 ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
499 }
500 ResetClipping();
501 } // end of wxDC::DestroyClippingRegion
502
503 // ---------------------------------------------------------------------------
504 // query capabilities
505 // ---------------------------------------------------------------------------
506
507 bool wxDC::CanDrawBitmap() const
508 {
509 return true;
510 }
511
512 bool wxDC::CanGetTextExtent() const
513 {
514 LONG lTechnology = 0L;
515
516 ::DevQueryCaps(GetHDC(), CAPS_TECHNOLOGY, 1L, &lTechnology);
517 return (lTechnology == CAPS_TECH_RASTER_DISPLAY) || (lTechnology == CAPS_TECH_RASTER_PRINTER);
518 } // end of wxDC::CanGetTextExtent
519
520 int wxDC::GetDepth() const
521 {
522 LONG lArray[CAPS_COLOR_BITCOUNT];
523 int nBitsPerPixel = 0;
524
525 if(::DevQueryCaps( GetHDC()
526 ,CAPS_FAMILY
527 ,CAPS_COLOR_BITCOUNT
528 ,lArray
529 ))
530 {
531 nBitsPerPixel = (int)lArray[CAPS_COLOR_BITCOUNT];
532 }
533 return nBitsPerPixel;
534 } // end of wxDC::GetDepth
535
536 // ---------------------------------------------------------------------------
537 // drawing
538 // ---------------------------------------------------------------------------
539
540 void wxDC::Clear()
541 {
542 //
543 // If this is a canvas DC then just fill with the background color
544 // Otherwise purge the whole thing
545 //
546 if (m_pCanvas)
547 {
548 RECTL vRect;
549
550 ::GpiQueryClipBox(m_hPS, &vRect);
551 ::WinFillRect(m_hPS, &vRect, ::GpiQueryBackColor(m_hPS));
552 }
553 else
554 ::GpiErase(m_hPS);
555 } // end of wxDC::Clear
556
557 bool wxDC::DoFloodFill(
558 wxCoord vX
559 , wxCoord vY
560 , const wxColour& rCol
561 , int nStyle
562 )
563 {
564 POINTL vPtlPos;
565 LONG lColor;
566 LONG lOptions;
567 LONG lHits;
568 bool bSuccess = false;
569
570 vPtlPos.x = vX; // Loads x-coordinate
571 vPtlPos.y = OS2Y(vY,0); // Loads y-coordinate
572 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
573 lColor = rCol.GetPixel();
574 lOptions = FF_BOUNDARY;
575 if(wxFLOOD_SURFACE == nStyle)
576 lOptions = FF_SURFACE;
577
578 if ((lHits = ::GpiFloodFill(m_hPS, lOptions, lColor)) != GPI_ERROR)
579 bSuccess = true;
580
581 return bSuccess;
582 } // end of wxDC::DoFloodFill
583
584 bool wxDC::DoGetPixel(
585 wxCoord vX
586 , wxCoord vY
587 , wxColour* pCol
588 ) const
589 {
590 POINTL vPoint;
591 LONG lColor;
592
593 vPoint.x = vX;
594 vPoint.y = OS2Y(vY,0);
595 lColor = ::GpiQueryPel(m_hPS, &vPoint);
596
597 //
598 // return the color of the pixel
599 //
600 if(pCol)
601 pCol->Set( GetRValue(lColor)
602 ,GetGValue(lColor)
603 ,GetBValue(lColor)
604 );
605 return true;
606 } // end of wxDC::DoGetPixel
607
608 void wxDC::DoCrossHair(
609 wxCoord vX
610 , wxCoord vY
611 )
612 {
613 vY = OS2Y(vY,0);
614
615 wxCoord vX1 = vX - VIEWPORT_EXTENT;
616 wxCoord vY1 = vY - VIEWPORT_EXTENT;
617 wxCoord vX2 = vX + VIEWPORT_EXTENT;
618 wxCoord vY2 = vY + VIEWPORT_EXTENT;
619 POINTL vPoint[4];
620
621 vPoint[0].x = vX1;
622 vPoint[0].y = vY;
623
624 vPoint[1].x = vX2;
625 vPoint[1].y = vY;
626
627 ::GpiMove(m_hPS, &vPoint[0]);
628 ::GpiLine(m_hPS, &vPoint[1]);
629
630 vPoint[2].x = vX;
631 vPoint[2].y = vY1;
632
633 vPoint[3].x = vX;
634 vPoint[3].y = vY2;
635
636 ::GpiMove(m_hPS, &vPoint[2]);
637 ::GpiLine(m_hPS, &vPoint[3]);
638 CalcBoundingBox(vX1, vY1);
639 CalcBoundingBox(vX2, vY2);
640 } // end of wxDC::DoCrossHair
641
642 void wxDC::DoDrawLine(
643 wxCoord vX1
644 , wxCoord vY1
645 , wxCoord vX2
646 , wxCoord vY2
647 )
648 {
649 POINTL vPoint[2];
650 COLORREF vColor = 0x00ffffff;
651
652 //
653 // Might be a memory DC with no Paint rect.
654 //
655 if (!(m_vRclPaint.yTop == 0 &&
656 m_vRclPaint.yBottom == 0 &&
657 m_vRclPaint.xRight == 0 &&
658 m_vRclPaint.xLeft == 0))
659 {
660 vY1 = OS2Y(vY1,0);
661 vY2 = OS2Y(vY2,0);
662 }
663 else
664 {
665 if (m_vSelectedBitmap != wxNullBitmap)
666 {
667 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
668 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
669 vY1 = OS2Y(vY1,0);
670 vY2 = OS2Y(vY2,0);
671 }
672 }
673 vPoint[0].x = vX1;
674 vPoint[0].y = vY1;
675 vPoint[1].x = vX2;
676 vPoint[1].y = vY2;
677 if (m_pen.Ok())
678 {
679 vColor = m_pen.GetColour().GetPixel();
680 }
681 ::GpiSetColor(m_hPS, vColor);
682 ::GpiMove(m_hPS, &vPoint[0]);
683 ::GpiLine(m_hPS, &vPoint[1]);
684 CalcBoundingBox(vX1, vY1);
685 CalcBoundingBox(vX2, vY2);
686 } // end of wxDC::DoDrawLine
687
688 //////////////////////////////////////////////////////////////////////////////
689 // Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1)
690 // and ending at (x2, y2). The current pen is used for the outline and the
691 // current brush for filling the shape. The arc is drawn in an anticlockwise
692 // direction from the start point to the end point.
693 //////////////////////////////////////////////////////////////////////////////
694 void wxDC::DoDrawArc(
695 wxCoord vX1
696 , wxCoord vY1
697 , wxCoord vX2
698 , wxCoord vY2
699 , wxCoord vXc
700 , wxCoord vYc
701 )
702 {
703 POINTL vPtlPos;
704 POINTL vPtlArc[2]; // Structure for current position
705 double dRadius;
706 double dAngl1;
707 double dAngl2;
708 double dAnglmid;
709 wxCoord vXm;
710 wxCoord vYm;
711 ARCPARAMS vArcp; // Structure for arc parameters
712
713 if((vX1 == vXc && vY1 == vXc) || (vX2 == vXc && vY2 == vXc))
714 return; // Draw point ??
715 dRadius = 0.5 * ( hypot( (double)(vY1 - vYc)
716 ,(double)(vX1 - vXc)
717 ) +
718 hypot( (double)(vY2 - vYc)
719 ,(double)(vX2 - vXc)
720 )
721 );
722
723 dAngl1 = atan2( (double)(vY1 - vYc)
724 ,(double)(vX1 - vXc)
725 );
726 dAngl2 = atan2( (double)(vY2 - vYc)
727 ,(double)(vX2 - vXc)
728 );
729 if(dAngl2 < dAngl1)
730 dAngl2 += M_PI * 2;
731
732 //
733 // GpiPointArc can't draw full arc
734 //
735 if(dAngl2 == dAngl1 || (vX1 == vX2 && vY1 == vY2) )
736 {
737 //
738 // Medium point
739 //
740 dAnglmid = (dAngl1 + dAngl2)/2. + M_PI;
741 vXm = (wxCoord)(vXc + dRadius * cos(dAnglmid));
742 vYm = (wxCoord)(vYc + dRadius * sin(dAnglmid));
743 DoDrawArc( vX1, vY1
744 ,vXm, vYm
745 ,vXc, vYc
746 );
747 DoDrawArc( vXm, vYm
748 ,vX2, vY2
749 ,vXc, vYc
750 );
751 return;
752 }
753
754 //
755 // Medium point
756 //
757 dAnglmid = (dAngl1 + dAngl2)/2.;
758 vXm = (wxCoord)(vXc + dRadius * cos(dAnglmid));
759 vYm = (wxCoord)(vYc + dRadius * sin(dAnglmid));
760
761 //
762 // Ellipse main axis (r,q), (p,s) with center at (0,0) */
763 //
764 vArcp.lR = 0;
765 vArcp.lQ = 1;
766 vArcp.lP = 1;
767 vArcp.lS = 0;
768 ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
769
770 vPtlPos.x = vX1; // Loads x-coordinate
771 vPtlPos.y = vY1; // Loads y-coordinate
772 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
773 vPtlArc[0].x = vXm;
774 vPtlArc[0].y = vYm;
775 vPtlArc[1].x = vX2;
776 vPtlArc[1].y = vY2;
777 ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc
778 CalcBoundingBox( (wxCoord)(vXc - dRadius)
779 ,(wxCoord)(vYc - dRadius)
780 );
781 CalcBoundingBox( (wxCoord)(vXc + dRadius)
782 ,(wxCoord)(vYc + dRadius)
783 );
784 } // end of wxDC::DoDrawArc
785
786 void wxDC::DoDrawCheckMark(
787 wxCoord vX1
788 , wxCoord vY1
789 , wxCoord vWidth
790 , wxCoord vHeight
791 )
792 {
793 POINTL vPoint[2];
794
795 vY1 = OS2Y(vY1,vHeight);
796
797 vPoint[0].x = vX1;
798 vPoint[0].y = vY1;
799 vPoint[1].x = vX1 + vWidth;
800 vPoint[1].y = vY1 + vHeight;
801
802 ::GpiMove(m_hPS, &vPoint[0]);
803 ::GpiBox( m_hPS // handle to a presentation space
804 ,DRO_OUTLINE // draw the box outline ? or ?
805 ,&vPoint[1] // address of the corner
806 ,0L // horizontal corner radius
807 ,0L // vertical corner radius
808 );
809 if(vWidth > 4 && vHeight > 4)
810 {
811 int nTmp;
812
813 vPoint[0].x += 2; vPoint[0].y += 2;
814 vPoint[1].x -= 2; vPoint[1].y -= 2;
815 ::GpiMove(m_hPS, &vPoint[0]);
816 ::GpiLine(m_hPS, &vPoint[1]);
817 nTmp = vPoint[0].x;
818 vPoint[0].x = vPoint[1].x;
819 vPoint[1].x = nTmp;
820 ::GpiMove(m_hPS, &vPoint[0]);
821 ::GpiLine(m_hPS, &vPoint[1]);
822 }
823 CalcBoundingBox( vX1
824 ,vY1
825 );
826
827 wxCoord vX2 = vX1 + vWidth;
828 wxCoord vY2 = vY1 + vHeight;
829
830 CalcBoundingBox( vX2
831 ,vY2
832 );
833 } // end of wxDC::DoDrawCheckMark
834
835 void wxDC::DoDrawPoint(
836 wxCoord vX
837 , wxCoord vY
838 )
839 {
840 POINTL vPoint;
841 COLORREF vColor = 0x00ffffff;
842
843 if (m_pen.Ok())
844 {
845 vColor = m_pen.GetColour().GetPixel();
846 }
847 ::GpiSetColor(m_hPS, vColor);
848 vPoint.x = vX;
849 vPoint.y = OS2Y(vY,0);
850 ::GpiSetPel(m_hPS, &vPoint);
851 CalcBoundingBox( vX
852 ,vY
853 );
854 } // end of wxDC::DoDrawPoint
855
856 void wxDC::DoDrawPolygon(
857 int n
858 , wxPoint vPoints[]
859 , wxCoord vXoffset
860 , wxCoord vYoffset
861 , int nFillStyle
862 )
863 {
864 ULONG ulCount = 1; // Number of polygons.
865 POLYGON vPlgn; // polygon.
866 ULONG flOptions = 0L; // Drawing options.
867
868 //////////////////////////////////////////////////////////////////////////////
869 // This contains fields of option bits... to draw boundary lines as well as
870 // the area interior.
871 //
872 // Drawing boundary lines:
873 // POLYGON_NOBOUNDARY Does not draw boundary lines.
874 // POLYGON_BOUNDARY Draws boundary lines (the default).
875 //
876 // Construction of the area interior:
877 // POLYGON_ALTERNATE Constructs interior in alternate mode
878 // (the default).
879 // POLYGON_WINDING Constructs interior in winding mode.
880 //////////////////////////////////////////////////////////////////////////////
881
882 ULONG flModel = 0L; // Drawing model.
883
884 //////////////////////////////////////////////////////////////////////////////
885 // Drawing model.
886 // POLYGON_INCL Fill is inclusive of bottom right (the default).
887 // POLYGON_EXCL Fill is exclusive of bottom right.
888 // This is provided to aid migration from other graphics models.
889 //////////////////////////////////////////////////////////////////////////////
890
891 LONG lHits = 0L; // Correlation/error indicator.
892 POINTL vPoint;
893 int i;
894 int nIsTRANSPARENT = 0;
895 LONG lBorderColor = 0L;
896 LONG lColor = 0L;
897
898 lBorderColor = m_pen.GetColour().GetPixel();
899 lColor = m_brush.GetColour().GetPixel();
900 if(m_brush.GetStyle() == wxTRANSPARENT)
901 nIsTRANSPARENT = 1;
902
903 vPlgn.ulPoints = n;
904 vPlgn.aPointl = (POINTL*) calloc( n + 1
905 ,sizeof(POINTL)
906 ); // well, new will call malloc
907
908 for(i = 0; i < n; i++)
909 {
910 vPlgn.aPointl[i].x = vPoints[i].x; // +xoffset;
911 vPlgn.aPointl[i].y = OS2Y(vPoints[i].y,0); // +yoffset;
912 }
913 flModel = POLYGON_BOUNDARY;
914 if(nFillStyle == wxWINDING_RULE)
915 flModel |= POLYGON_WINDING;
916 else
917 flModel |= POLYGON_ALTERNATE;
918
919 vPoint.x = vXoffset;
920 vPoint.y = OS2Y(vYoffset,0);
921
922 ::GpiSetColor(m_hPS, lBorderColor);
923 ::GpiMove(m_hPS, &vPoint);
924 lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel);
925 free(vPlgn.aPointl);
926 } // end of wxDC::DoDrawPolygon
927
928 void wxDC::DoDrawLines(
929 int n
930 , wxPoint vPoints[]
931 , wxCoord vXoffset
932 , wxCoord vYoffset
933 )
934 {
935 POINTL vPoint;
936
937 if (vXoffset != 0L || vXoffset != 0L)
938 {
939 int i;
940
941 vPoint.x = vPoints[0].x + vXoffset;
942 vPoint.y = OS2Y(vPoints[0].y + vYoffset,0);
943 ::GpiMove(m_hPS, &vPoint);
944
945 LONG lBorderColor = m_pen.GetColour().GetPixel();
946
947 ::GpiSetColor(m_hPS, lBorderColor);
948 for(i = 1; i < n; i++)
949 {
950 vPoint.x = vPoints[i].x + vXoffset;
951 vPoint.y = OS2Y(vPoints[i].y + vYoffset,0);
952 ::GpiLine(m_hPS, &vPoint);
953 }
954 }
955 else
956 {
957 int i;
958
959 CalcBoundingBox( vPoints[0].x
960 ,vPoints[0].y
961 );
962 vPoint.x = vPoints[0].x;
963 vPoint.y = OS2Y(vPoints[0].y,0);
964 ::GpiMove(m_hPS, &vPoint);
965
966 for (i = 0; i < n; i++)
967 {
968 CalcBoundingBox( vPoints[i].x
969 ,vPoints[i].y
970 );
971 vPoint.x = vPoints[i].x;
972 vPoint.y = OS2Y(vPoints[i].y,0);
973 ::GpiLine(m_hPS, &vPoint);
974 }
975 }
976 } // end of wxDC::DoDrawLines
977
978 void wxDC::DoDrawRectangle(
979 wxCoord vX
980 , wxCoord vY
981 , wxCoord vWidth
982 , wxCoord vHeight
983 )
984 {
985 POINTL vPoint[2];
986 LONG lControl;
987 LONG lColor;
988 LONG lBorderColor;
989 int nIsTRANSPARENT = 0;
990
991 //
992 // Might be a memory DC with no Paint rect.
993 //
994 if (!(m_vRclPaint.yTop == 0 &&
995 m_vRclPaint.yBottom == 0 &&
996 m_vRclPaint.xRight == 0 &&
997 m_vRclPaint.xLeft == 0))
998 vY = OS2Y(vY,vHeight);
999 else
1000 {
1001 if (m_vSelectedBitmap != wxNullBitmap)
1002 {
1003 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1004 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1005 vY = OS2Y(vY,vHeight);
1006 }
1007 }
1008
1009 wxCoord vX2 = vX + vWidth;
1010 wxCoord vY2 = vY + vHeight;
1011
1012 vPoint[0].x = vX;
1013 vPoint[0].y = vY;
1014 vPoint[1].x = vX + vWidth - 1;
1015 vPoint[1].y = vY + vHeight - 1;
1016 ::GpiMove(m_hPS, &vPoint[0]);
1017 lColor = m_brush.GetColour().GetPixel();
1018 lBorderColor = m_pen.GetColour().GetPixel();
1019 if (m_brush.GetStyle() == wxTRANSPARENT)
1020 nIsTRANSPARENT = 1;
1021 if(lColor == lBorderColor || nIsTRANSPARENT)
1022 {
1023 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1024 if(m_brush.GetStyle() == wxTRANSPARENT)
1025 lControl = DRO_OUTLINE;
1026
1027 ::GpiSetColor(m_hPS, lBorderColor);
1028 ::GpiBox( m_hPS // handle to a presentation space
1029 ,lControl // draw the box outline ? or ?
1030 ,&vPoint[1] // address of the corner
1031 ,0L // horizontal corner radius
1032 ,0L // vertical corner radius
1033 );
1034 }
1035 else
1036 {
1037 lControl = DRO_OUTLINE;
1038 ::GpiSetColor( m_hPS
1039 ,lBorderColor
1040 );
1041 ::GpiBox( m_hPS
1042 ,lControl
1043 ,&vPoint[1]
1044 ,0L
1045 ,0L
1046 );
1047 lControl = DRO_FILL;
1048 ::GpiSetColor( m_hPS
1049 ,lColor
1050 );
1051 vPoint[0].x = vX + 1;
1052 vPoint[0].y = vY + 1;
1053 vPoint[1].x = vX + vWidth - 2;
1054 vPoint[1].y = vY + vHeight - 2;
1055 ::GpiMove(m_hPS, &vPoint[0]);
1056 ::GpiBox( m_hPS
1057 ,lControl
1058 ,&vPoint[1]
1059 ,0L
1060 ,0L
1061 );
1062 }
1063 CalcBoundingBox(vX, vY);
1064 CalcBoundingBox(vX2, vY2);
1065 } // end of wxDC::DoDrawRectangle
1066
1067 void wxDC::DoDrawRoundedRectangle(
1068 wxCoord vX
1069 , wxCoord vY
1070 , wxCoord vWidth
1071 , wxCoord vHeight
1072 , double dRadius
1073 )
1074 {
1075 POINTL vPoint[2];
1076 LONG lControl;
1077 LONG lColor;
1078 LONG lBorderColor;
1079 int nIsTRANSPARENT = 0;
1080
1081 //
1082 // Might be a memory DC with no Paint rect.
1083 //
1084 if (!(m_vRclPaint.yTop == 0 &&
1085 m_vRclPaint.yBottom == 0 &&
1086 m_vRclPaint.xRight == 0 &&
1087 m_vRclPaint.xLeft == 0))
1088 vY = OS2Y(vY,vHeight);
1089 else
1090 {
1091 if (m_vSelectedBitmap != wxNullBitmap)
1092 {
1093 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1094 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1095 vY = OS2Y(vY,vHeight);
1096 }
1097 }
1098
1099 wxCoord vX2 = (vX + vWidth);
1100 wxCoord vY2 = (vY + vHeight);
1101
1102 vPoint[0].x = vX;
1103 vPoint[0].y = vY;
1104 vPoint[1].x = vX + vWidth - 1;
1105 vPoint[1].y = vY + vHeight - 1;
1106 ::GpiMove(m_hPS, &vPoint[0]);
1107
1108 lColor = m_brush.GetColour().GetPixel();
1109 lBorderColor = m_pen.GetColour().GetPixel();
1110 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1111 if (m_brush.GetStyle() == wxTRANSPARENT)
1112 nIsTRANSPARENT = 1;
1113 if(lColor == lBorderColor || nIsTRANSPARENT)
1114 {
1115 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1116 if(m_brush.GetStyle() == wxTRANSPARENT)
1117 lControl = DRO_OUTLINE;
1118
1119 ::GpiSetColor(m_hPS, lColor);
1120 ::GpiBox( m_hPS // handle to a presentation space
1121 ,lControl // draw the box outline ? or ?
1122 ,&vPoint[1] // address of the corner
1123 ,(LONG)dRadius // horizontal corner radius
1124 ,(LONG)dRadius // vertical corner radius
1125 );
1126 }
1127 else
1128 {
1129 lControl = DRO_OUTLINE;
1130 ::GpiSetColor( m_hPS
1131 ,lBorderColor
1132 );
1133 ::GpiBox( m_hPS
1134 ,lControl
1135 ,&vPoint[1]
1136 ,(LONG)dRadius
1137 ,(LONG)dRadius
1138 );
1139 lControl = DRO_FILL;
1140 ::GpiSetColor( m_hPS
1141 ,lColor
1142 );
1143 vPoint[0].x = vX + 1;
1144 vPoint[0].y = vY + 1;
1145 vPoint[1].x = vX + vWidth - 2;
1146 vPoint[1].y = vY + vHeight - 2;
1147 ::GpiMove(m_hPS, &vPoint[0]);
1148 ::GpiBox( m_hPS
1149 ,lControl
1150 ,&vPoint[1]
1151 ,(LONG)dRadius
1152 ,(LONG)dRadius
1153 );
1154 }
1155
1156 CalcBoundingBox(vX, vY);
1157 CalcBoundingBox(vX2, vY2);
1158 } // end of wxDC::DoDrawRoundedRectangle
1159
1160 // Draw Ellipse within box (x,y) - (x+width, y+height)
1161 void wxDC::DoDrawEllipse(
1162 wxCoord vX
1163 , wxCoord vY
1164 , wxCoord vWidth
1165 , wxCoord vHeight
1166 )
1167 {
1168 POINTL vPtlPos; // Structure for current position
1169 FIXED vFxMult; // Multiplier for ellipse
1170 ARCPARAMS vArcp; // Structure for arc parameters
1171
1172 vY = OS2Y(vY,vHeight);
1173
1174 vArcp.lR = 0;
1175 vArcp.lQ = vHeight/2;
1176 vArcp.lP = vWidth/2;
1177 vArcp.lS = 0;
1178 ::GpiSetArcParams( m_hPS
1179 ,&vArcp
1180 ); // Sets parameters to default
1181 vPtlPos.x = vX + vWidth/2; // Loads x-coordinate
1182 vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
1183 ::GpiMove( m_hPS
1184 ,&vPtlPos
1185 ); // Sets current position
1186 vFxMult = MAKEFIXED(1, 0); /* Sets multiplier */
1187
1188 //
1189 // DRO_FILL, DRO_OTLINEFILL - where to get
1190 //
1191 ::GpiFullArc( m_hPS
1192 ,DRO_OUTLINE
1193 ,vFxMult
1194 ); // Draws full arc with center at current position
1195
1196 wxCoord vX2 = (vX + vWidth);
1197 wxCoord vY2 = (vY + vHeight);
1198
1199 CalcBoundingBox(vX, vY);
1200 CalcBoundingBox(vX2, vY2);
1201 } // end of wxDC::DoDrawEllipse
1202
1203 void wxDC::DoDrawEllipticArc(
1204 wxCoord vX
1205 , wxCoord vY
1206 , wxCoord vWidth
1207 , wxCoord vHeight
1208 , double dSa
1209 , double dEa
1210 )
1211 {
1212 POINTL vPtlPos; // Structure for current position
1213 FIXED vFxMult; // Multiplier for ellipse
1214 ARCPARAMS vArcp; // Structure for arc parameters
1215 FIXED vFSa;
1216 FIXED vFSweepa; // Start angle, sweep angle
1217 double dIntPart;
1218 double dFractPart;
1219
1220 vY = OS2Y(vY,vHeight);
1221
1222 dFractPart = modf(dSa,&dIntPart);
1223 vFSa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
1224 dFractPart = modf(dEa - dSa, &dIntPart);
1225 vFSweepa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
1226
1227 //
1228 // Ellipse main axis (r,q), (p,s) with center at (0,0)
1229 //
1230 vArcp.lR = 0;
1231 vArcp.lQ = vHeight/2;
1232 vArcp.lP = vWidth/2;
1233 vArcp.lS = 0;
1234 ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
1235 vPtlPos.x = (wxCoord)(vX + vWidth/2 * (1. + cos(DegToRad(dSa)))); // Loads x-coordinate
1236 vPtlPos.y = (wxCoord)(vY + vHeight/2 * (1. + sin(DegToRad(dSa)))); // Loads y-coordinate
1237 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
1238
1239 //
1240 // May be not to the center ?
1241 //
1242 vPtlPos.x = vX + vWidth/2 ; // Loads x-coordinate
1243 vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
1244 vFxMult = MAKEFIXED(1, 0); // Sets multiplier
1245
1246 //
1247 // DRO_FILL, DRO_OTLINEFILL - where to get
1248 //
1249 ::GpiPartialArc( m_hPS
1250 ,&vPtlPos
1251 ,vFxMult
1252 ,vFSa
1253 ,vFSweepa
1254 );
1255 wxCoord vX2 = (vX + vWidth);
1256 wxCoord vY2 = (vY + vHeight);
1257
1258 CalcBoundingBox(vX, vY);
1259 CalcBoundingBox(vX2, vY2);
1260 } // end of wxDC::DoDrawEllipticArc
1261
1262 void wxDC::DoDrawIcon(
1263 const wxIcon& rIcon
1264 , wxCoord vX
1265 , wxCoord vY
1266 )
1267 {
1268 //
1269 // Need to copy back into a bitmap. ::WinDrawPointer uses device coords
1270 // and I don't feel like figuring those out for scrollable windows so
1271 // just convert to a bitmap then let the DoDrawBitmap routing display it
1272 //
1273 if (rIcon.IsXpm())
1274 {
1275 DoDrawBitmap(rIcon.GetXpmSrc(), vX, vY, true);
1276 }
1277 else
1278 {
1279 wxBitmap vBitmap(rIcon);
1280
1281 DoDrawBitmap(vBitmap, vX, vY, false);
1282 }
1283 CalcBoundingBox(vX, vY);
1284 CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());
1285 } // end of wxDC::DoDrawIcon
1286
1287 void wxDC::DoDrawBitmap(
1288 const wxBitmap& rBmp
1289 , wxCoord vX
1290 , wxCoord vY
1291 , bool bUseMask
1292 )
1293 {
1294 if (!IsKindOf(CLASSINFO(wxPrinterDC)))
1295 {
1296 HBITMAP hBitmap = (HBITMAP)rBmp.GetHBITMAP();
1297 HBITMAP hBitmapOld = NULLHANDLE;
1298 POINTL vPoint[4];
1299
1300 vY = OS2Y(vY,rBmp.GetHeight());
1301
1302 vPoint[0].x = vX;
1303 vPoint[0].y = vY + rBmp.GetHeight();
1304 vPoint[1].x = vX + rBmp.GetWidth();
1305 vPoint[1].y = vY;
1306 vPoint[2].x = 0;
1307 vPoint[2].y = 0;
1308 vPoint[3].x = rBmp.GetWidth();
1309 vPoint[3].y = rBmp.GetHeight();
1310 if (bUseMask)
1311 {
1312 wxMask* pMask = rBmp.GetMask();
1313
1314 if (pMask)
1315 {
1316 //
1317 // Need to imitate ::MaskBlt in windows.
1318 // 1) Extract the bits from from the bitmap.
1319 // 2) Extract the bits from the mask
1320 // 3) Using the mask bits do the following:
1321 // A) If the mask byte is 00 leave the bitmap byte alone
1322 // B) If the mask byte is FF copy the screen color into
1323 // bitmap byte
1324 // 4) Create a new bitmap and set its bits to the above result
1325 // 5) Blit this to the screen PS
1326 //
1327 HBITMAP hMask = (HBITMAP)pMask->GetMaskBitmap();
1328 HBITMAP hOldMask = NULLHANDLE;
1329 HBITMAP hOldBitmap = NULLHANDLE;
1330 HBITMAP hNewBitmap = NULLHANDLE;
1331 unsigned char* pucBits; // buffer that will contain the bitmap data
1332 unsigned char* pucBitsMask; // buffer that will contain the mask data
1333 unsigned char* pucData; // pointer to use to traverse bitmap data
1334 unsigned char* pucDataMask; // pointer to use to traverse mask data
1335 LONG lHits;
1336 ERRORID vError;
1337 wxString sError;
1338
1339 //
1340 // The usual Memory context creation stuff
1341 //
1342 DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1343 SIZEL vSize = {0, 0};
1344 HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1345 HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
1346
1347 //
1348 // The usual bitmap header stuff
1349 //
1350 BITMAPINFOHEADER2 vHeader;
1351 BITMAPINFO2 vInfo;
1352
1353 memset(&vHeader, '\0', 16);
1354 vHeader.cbFix = 16;
1355
1356 memset(&vInfo, '\0', 16);
1357 vInfo.cbFix = 16;
1358 vInfo.cx = (ULONG)rBmp.GetWidth();
1359 vInfo.cy = (ULONG)rBmp.GetHeight();
1360 vInfo.cPlanes = 1;
1361 vInfo.cBitCount = 24; // Set to desired count going in
1362
1363 //
1364 // Create the buffers for data....all wxBitmaps are 24 bit internally
1365 //
1366 int nBytesPerLine = rBmp.GetWidth() * 3;
1367 int nSizeDWORD = sizeof(DWORD);
1368 int nLineBoundary = nBytesPerLine % nSizeDWORD;
1369 int nPadding = 0;
1370 int i;
1371 int j;
1372 LONG lScans = 0L;
1373 LONG lColor = 0L;
1374
1375 //
1376 // Need to get a background color for mask blitting
1377 //
1378 if (IsKindOf(CLASSINFO(wxWindowDC)))
1379 {
1380 wxWindowDC* pWindowDC = wxDynamicCast(this, wxWindowDC);
1381
1382 lColor = pWindowDC->m_pCanvas->GetBackgroundColour().GetPixel();
1383 }
1384 else if (GetBrush().Ok())
1385 lColor = GetBrush().GetColour().GetPixel();
1386 else
1387 lColor = m_textBackgroundColour.GetPixel();
1388
1389 //
1390 // Bitmap must be in a double-word aligned address so we may
1391 // have some padding to worry about
1392 //
1393 if (nLineBoundary > 0)
1394 {
1395 nPadding = nSizeDWORD - nLineBoundary;
1396 nBytesPerLine += nPadding;
1397 }
1398 pucBits = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
1399 pucBitsMask = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
1400 memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
1401 memset(pucBitsMask, '\0', (nBytesPerLine * rBmp.GetHeight()));
1402
1403 //
1404 // Extract the bitmap and mask data
1405 //
1406 if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
1407 {
1408 vError = ::WinGetLastError(vHabmain);
1409 sError = wxPMErrorToStr(vError);
1410 }
1411 ::GpiQueryBitmapInfoHeader(hBitmap, &vHeader);
1412 vInfo.cBitCount = 24;
1413 if ((lScans = ::GpiQueryBitmapBits( hPS
1414 ,0L
1415 ,(LONG)rBmp.GetHeight()
1416 ,(PBYTE)pucBits
1417 ,&vInfo
1418 )) == GPI_ALTERROR)
1419 {
1420 vError = ::WinGetLastError(vHabmain);
1421 sError = wxPMErrorToStr(vError);
1422 }
1423 if ((hOldMask = ::GpiSetBitmap(hPS, hMask)) == HBM_ERROR)
1424 {
1425 vError = ::WinGetLastError(vHabmain);
1426 sError = wxPMErrorToStr(vError);
1427 }
1428 ::GpiQueryBitmapInfoHeader(hMask, &vHeader);
1429 vInfo.cBitCount = 24;
1430 if ((lScans = ::GpiQueryBitmapBits( hPS
1431 ,0L
1432 ,(LONG)rBmp.GetHeight()
1433 ,(PBYTE)pucBitsMask
1434 ,&vInfo
1435 )) == GPI_ALTERROR)
1436 {
1437 vError = ::WinGetLastError(vHabmain);
1438 sError = wxPMErrorToStr(vError);
1439 }
1440 if (( hMask = ::GpiSetBitmap(hPS, hOldMask)) == HBM_ERROR)
1441 {
1442 vError = ::WinGetLastError(vHabmain);
1443 sError = wxPMErrorToStr(vError);
1444 }
1445
1446 //
1447 // Now set the bytes(bits) according to the mask values
1448 // 3 bytes per pel...must handle one at a time
1449 //
1450 pucData = pucBits;
1451 pucDataMask = pucBitsMask;
1452
1453 //
1454 // 16 bit kludge really only kinda works. The mask gets applied
1455 // where needed but the original bitmap bits are dorked sometimes
1456 //
1457 bool bpp16 = (wxDisplayDepth() == 16);
1458
1459 for (i = 0; i < rBmp.GetHeight(); i++)
1460 {
1461 for (j = 0; j < rBmp.GetWidth(); j++)
1462 {
1463 // Byte 1
1464 if (bpp16 && *pucDataMask == 0xF8) // 16 bit display gobblygook
1465 pucData++;
1466 else if (*pucDataMask == 0xFF) // leave bitmap byte alone
1467 pucData++;
1468 else
1469 {
1470 *pucData = ((unsigned char)(lColor >> 16));
1471 pucData++;
1472 }
1473 // Byte 2
1474 if (bpp16 && *(pucDataMask + 1) == 0xFC) // 16 bit display gobblygook
1475 pucData++;
1476 else if (*(pucDataMask + 1) == 0xFF) // leave bitmap byte alone
1477 pucData++;
1478 else
1479 {
1480 *pucData = ((unsigned char)(lColor >> 8));
1481 pucData++;
1482 }
1483
1484 // Byte 3
1485 if (bpp16 && *(pucDataMask + 2) == 0xF8) // 16 bit display gobblygook
1486 pucData++;
1487 else if (*(pucDataMask + 2) == 0xFF) // leave bitmap byte alone
1488 pucData++;
1489 else
1490 {
1491 *pucData = ((unsigned char)lColor);
1492 pucData++;
1493 }
1494 pucDataMask += 3;
1495 }
1496 for (j = 0; j < nPadding; j++)
1497 {
1498 pucData++;
1499 pucDataMask++;
1500 }
1501 }
1502 //
1503 // Create a new bitmap
1504 //
1505 vHeader.cx = (ULONG)rBmp.GetWidth();
1506 vHeader.cy = (ULONG)rBmp.GetHeight();
1507 vHeader.cPlanes = 1L;
1508 vHeader.cBitCount = 24;
1509 if ((hNewBitmap = ::GpiCreateBitmap( hPS
1510 ,&vHeader
1511 ,CBM_INIT
1512 ,(PBYTE)pucBits
1513 ,&vInfo
1514 )) == GPI_ERROR)
1515 {
1516 vError = ::WinGetLastError(vHabmain);
1517 sError = wxPMErrorToStr(vError);
1518 }
1519
1520 //
1521 // Now blit it to the screen PS
1522 //
1523 if ((lHits = ::GpiWCBitBlt( (HPS)GetHPS()
1524 ,hNewBitmap
1525 ,4
1526 ,vPoint
1527 ,ROP_SRCCOPY
1528 ,BBO_IGNORE
1529 )) == GPI_ERROR)
1530 {
1531 vError = ::WinGetLastError(vHabmain);
1532 sError = wxPMErrorToStr(vError);
1533 }
1534
1535 //
1536 // Clean up
1537 //
1538 free(pucBits);
1539 free(pucBitsMask);
1540 ::GpiSetBitmap(hPS, NULLHANDLE);
1541 ::GpiDeleteBitmap(hNewBitmap);
1542 ::GpiDestroyPS(hPS);
1543 ::DevCloseDC(hDC);
1544 }
1545 }
1546 else
1547 {
1548 ULONG lOldForeGround = ::GpiQueryColor((HPS)GetHPS());
1549 ULONG lOldBackGround = ::GpiQueryBackColor((HPS)GetHPS());
1550
1551 if (m_textForegroundColour.Ok())
1552 {
1553 ::GpiSetColor( (HPS)GetHPS()
1554 ,m_textForegroundColour.GetPixel()
1555 );
1556 }
1557 if (m_textBackgroundColour.Ok())
1558 {
1559 ::GpiSetBackColor( (HPS)GetHPS()
1560 ,m_textBackgroundColour.GetPixel()
1561 );
1562 }
1563 //
1564 // Need to alter bits in a mono bitmap to match the new
1565 // background-foreground if it is different.
1566 //
1567 if (rBmp.IsMono() &&
1568 ((m_textForegroundColour.GetPixel() != lOldForeGround) ||
1569 (m_textBackgroundColour.GetPixel() != lOldBackGround)))
1570 {
1571 DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1572 SIZEL vSize = {0, 0};
1573 HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1574 HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
1575
1576 int nBytesPerLine = rBmp.GetWidth() * 3;
1577 int i, j;
1578 LONG lForeGround = m_textForegroundColour.GetPixel();
1579 LONG lBackGround = m_textBackgroundColour.GetPixel();
1580 LONG lScans;
1581 HBITMAP hOldBitmap = NULLHANDLE;
1582 BITMAPINFO2 vInfo;
1583 ERRORID vError;
1584 wxString sError;
1585
1586
1587 memset(&vInfo, '\0', 16);
1588 vInfo.cbFix = 16;
1589 vInfo.cx = (ULONG)rBmp.GetWidth();
1590 vInfo.cy = (ULONG)rBmp.GetHeight();
1591 vInfo.cPlanes = 1;
1592 vInfo.cBitCount = 24;
1593
1594 unsigned char* pucBits; // buffer that will contain the bitmap data
1595 unsigned char* pucData; // pointer to use to traverse bitmap data
1596
1597 pucBits = new unsigned char[nBytesPerLine * rBmp.GetHeight()];
1598 memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
1599
1600 if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
1601 {
1602 vError = ::WinGetLastError(vHabmain);
1603 sError = wxPMErrorToStr(vError);
1604 return;
1605 }
1606 if ((lScans = ::GpiQueryBitmapBits( hPS
1607 ,0L
1608 ,(LONG)rBmp.GetHeight()
1609 ,(PBYTE)pucBits
1610 ,&vInfo
1611 )) == GPI_ALTERROR)
1612 {
1613 vError = ::WinGetLastError(vHabmain);
1614 sError = wxPMErrorToStr(vError);
1615 return;
1616 }
1617 unsigned char cOldRedFore = (unsigned char)(lOldForeGround >> 16);
1618 unsigned char cOldGreenFore = (unsigned char)(lOldForeGround >> 8);
1619 unsigned char cOldBlueFore = (unsigned char)lOldForeGround;
1620
1621 unsigned char cRedFore = (unsigned char)(lForeGround >> 16);
1622 unsigned char cGreenFore = (unsigned char)(lForeGround >> 8);
1623 unsigned char cBlueFore = (unsigned char)lForeGround;
1624
1625 unsigned char cRedBack = (unsigned char)(lBackGround >> 16);
1626 unsigned char cGreenBack = (unsigned char)(lBackGround >> 8);
1627 unsigned char cBlueBack = (unsigned char)lBackGround;
1628
1629 pucData = pucBits;
1630 for (i = 0; i < rBmp.GetHeight(); i++)
1631 {
1632 for (j = 0; j < rBmp.GetWidth(); j++)
1633 {
1634 unsigned char cBmpRed = *pucData;
1635 unsigned char cBmpGreen = *(pucData + 1);
1636 unsigned char cBmpBlue = *(pucData + 2);
1637
1638 if ((cBmpRed == cOldRedFore) &&
1639 (cBmpGreen == cOldGreenFore) &&
1640 (cBmpBlue == cOldBlueFore))
1641 {
1642 *pucData = cBlueFore;
1643 pucData++;
1644 *pucData = cGreenFore;
1645 pucData++;
1646 *pucData = cRedFore;
1647 pucData++;
1648 }
1649 else
1650 {
1651 *pucData = cBlueBack;
1652 pucData++;
1653 *pucData = cGreenBack;
1654 pucData++;
1655 *pucData = cRedBack;
1656 pucData++;
1657 }
1658 }
1659 }
1660 if ((lScans = ::GpiSetBitmapBits( hPS
1661 ,0L
1662 ,(LONG)rBmp.GetHeight()
1663 ,(PBYTE)pucBits
1664 ,&vInfo
1665 )) == GPI_ALTERROR)
1666 {
1667 vError = ::WinGetLastError(vHabmain);
1668 sError = wxPMErrorToStr(vError);
1669 return;
1670 }
1671 delete [] pucBits;
1672 ::GpiSetBitmap(hPS, NULLHANDLE);
1673 ::GpiDestroyPS(hPS);
1674 ::DevCloseDC(hDC);
1675 }
1676 ::GpiWCBitBlt( (HPS)GetHPS()
1677 ,hBitmap
1678 ,4
1679 ,vPoint
1680 ,ROP_SRCCOPY
1681 ,BBO_IGNORE
1682 );
1683 ::GpiSetBitmap((HPS)GetHPS(), hBitmapOld);
1684 ::GpiSetColor((HPS)GetHPS(), lOldForeGround);
1685 ::GpiSetBackColor((HPS)GetHPS(), lOldBackGround);
1686 }
1687 }
1688 } // end of wxDC::DoDrawBitmap
1689
1690 void wxDC::DoDrawText(
1691 const wxString& rsText
1692 , wxCoord vX
1693 , wxCoord vY
1694 )
1695 {
1696 wxCoord vWidth;
1697 wxCoord vHeight;
1698
1699 DrawAnyText( rsText
1700 ,vX
1701 ,vY
1702 );
1703
1704 CalcBoundingBox(vX, vY);
1705 GetTextExtent(rsText, &vWidth, &vHeight);
1706 CalcBoundingBox((vX + vWidth), (vY + vHeight));
1707 } // end of wxDC::DoDrawText
1708
1709 void wxDC::DrawAnyText(
1710 const wxString& rsText
1711 , wxCoord vX
1712 , wxCoord vY
1713 )
1714 {
1715 int nOldBackground = 0;
1716 POINTL vPtlStart;
1717 LONG lHits;
1718 wxCoord vTextX = 0;
1719 wxCoord vTextY = 0;
1720
1721 //
1722 // prepare for drawing the text
1723 //
1724
1725 //
1726 // Set text color attributes
1727 //
1728 if (m_textForegroundColour.Ok())
1729 {
1730 SetTextColor( m_hPS
1731 ,(int)m_textForegroundColour.GetPixel()
1732 );
1733 }
1734
1735 if (m_textBackgroundColour.Ok())
1736 {
1737 nOldBackground = SetTextBkColor( m_hPS
1738 ,(int)m_textBackgroundColour.GetPixel()
1739 );
1740 }
1741 SetBkMode( m_hPS
1742 ,m_backgroundMode
1743 );
1744 GetTextExtent( rsText
1745 ,&vTextX
1746 ,&vTextY
1747 );
1748 vPtlStart.x = vX;
1749 if (!(m_vRclPaint.yTop == 0 &&
1750 m_vRclPaint.yBottom == 0 &&
1751 m_vRclPaint.xRight == 0 &&
1752 m_vRclPaint.xLeft == 0))
1753 {
1754 //
1755 // Position Text a little differently in the Statusbar from other panels
1756 //
1757 if (m_pCanvas && m_pCanvas->IsKindOf(CLASSINFO(wxStatusBar)))
1758 vPtlStart.y = OS2Y(vY,vTextY);
1759 else
1760 vPtlStart.y = (wxCoord)(OS2Y(vY,vTextY/1.5)); // Full extent is a bit much
1761 }
1762 else
1763 {
1764 if (m_vSelectedBitmap != wxNullBitmap)
1765 {
1766 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1767 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1768 if (m_pCanvas && m_pCanvas->IsKindOf(CLASSINFO(wxStatusBar)))
1769 vPtlStart.y = OS2Y(vY,vTextY);
1770 else
1771 vPtlStart.y = (LONG)(OS2Y(vY,vTextY/1.5));
1772 }
1773 else
1774 vPtlStart.y = vY;
1775 }
1776
1777 PCH pzStr = (PCH)rsText.c_str();
1778
1779 ::GpiMove(m_hPS, &vPtlStart);
1780 lHits = ::GpiCharString( m_hPS
1781 ,rsText.length()
1782 ,pzStr
1783 );
1784 if (lHits != GPI_OK)
1785 {
1786 wxLogLastError(wxT("TextOut"));
1787 }
1788
1789 //
1790 // Restore the old parameters (text foreground colour may be left because
1791 // it never is set to anything else, but background should remain
1792 // transparent even if we just drew an opaque string)
1793 //
1794 if (m_textBackgroundColour.Ok())
1795 SetTextBkColor( m_hPS
1796 ,nOldBackground
1797 );
1798 SetBkMode( m_hPS
1799 ,wxTRANSPARENT
1800 );
1801 }
1802
1803 void wxDC::DoDrawRotatedText(
1804 const wxString& rsText
1805 , wxCoord vX
1806 , wxCoord vY
1807 , double dAngle
1808 )
1809 {
1810 if (dAngle == 0.0)
1811 {
1812 DoDrawText( rsText
1813 ,vX
1814 ,vY
1815 );
1816 }
1817
1818 // TODO:
1819 /*
1820 if ( angle == 0.0 )
1821 {
1822 DoDrawText(text, x, y);
1823 }
1824 else
1825 {
1826 LOGFONT lf;
1827 wxFillLogFont(&lf, &m_font);
1828
1829 // GDI wants the angle in tenth of degree
1830 long angle10 = (long)(angle * 10);
1831 lf.lfEscapement = angle10;
1832 lf. lfOrientation = angle10;
1833
1834 HFONT hfont = ::CreateFontIndirect(&lf);
1835 if ( !hfont )
1836 {
1837 wxLogLastError("CreateFont");
1838 }
1839 else
1840 {
1841 HFONT hfontOld = ::SelectObject(GetHdc(), hfont);
1842
1843 DrawAnyText(text, x, y);
1844
1845 (void)::SelectObject(GetHdc(), hfontOld);
1846 }
1847
1848 // call the bounding box by adding all four vertices of the rectangle
1849 // containing the text to it (simpler and probably not slower than
1850 // determining which of them is really topmost/leftmost/...)
1851 wxCoord w, h;
1852 GetTextExtent(text, &w, &h);
1853
1854 double rad = DegToRad(angle);
1855
1856 // "upper left" and "upper right"
1857 CalcBoundingBox(x, y);
1858 CalcBoundingBox(x + w*cos(rad), y - h*sin(rad));
1859 CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
1860
1861 // "bottom left" and "bottom right"
1862 x += (wxCoord)(h*sin(rad));
1863 y += (wxCoord)(h*cos(rad));
1864 CalcBoundingBox(x, y);
1865 CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
1866 }
1867 */
1868 }
1869
1870 // ---------------------------------------------------------------------------
1871 // set GDI objects
1872 // ---------------------------------------------------------------------------
1873
1874 void wxDC::DoSelectPalette(
1875 bool bRealize
1876 )
1877 {
1878 //
1879 // Set the old object temporarily, in case the assignment deletes an object
1880 // that's not yet selected out.
1881 //
1882 if (m_hOldPalette)
1883 {
1884 m_hOldPalette = 0;
1885 }
1886
1887 if (m_palette.Ok())
1888 {
1889 HPALETTE hOldPal;
1890
1891 hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
1892 if (!m_hOldPalette)
1893 m_hOldPalette = (WXHPALETTE)hOldPal;
1894 }
1895 } // end of wxDC::DoSelectPalette
1896
1897 void wxDC::InitializePalette()
1898 {
1899 if (wxDisplayDepth() <= 8 )
1900 {
1901 //
1902 // Look for any window or parent that has a custom palette. If any has
1903 // one then we need to use it in drawing operations
1904 //
1905 wxWindow* pWin = m_pCanvas->GetAncestorWithCustomPalette();
1906
1907 m_hasCustomPalette = pWin && pWin->HasCustomPalette();
1908 if (m_hasCustomPalette)
1909 {
1910 m_palette = pWin->GetPalette();
1911
1912 //
1913 // turn on PM translation for this palette
1914 //
1915 DoSelectPalette();
1916 }
1917 }
1918 } // end of wxDC::InitializePalette
1919
1920 void wxDC::SetPalette(
1921 const wxPalette& rPalette
1922 )
1923 {
1924 if (m_hOldFont)
1925 {
1926 m_hOldFont = 0;
1927 }
1928 m_palette = rPalette;
1929 if (!rPalette.Ok())
1930 {
1931 if (m_hOldFont)
1932 {
1933 m_hOldFont = 0;
1934 }
1935 }
1936 HPALETTE hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
1937 if (!m_hOldPalette)
1938 m_hOldPalette = (WXHPALETTE)hOldPal;
1939 } // end of wxDC::SetPalette
1940
1941 void wxDC::SetFont(
1942 const wxFont& rFont
1943 )
1944 {
1945 //
1946 // Set the old object temporarily, in case the assignment deletes an object
1947 // that's not yet selected out.
1948 //
1949 if (m_hOldFont)
1950 {
1951 m_hOldFont = 0;
1952 }
1953 m_font = rFont;
1954 if (!rFont.Ok())
1955 {
1956 m_hOldFont = 0;
1957 }
1958
1959 m_font.SetPS(m_hPS); // this will realize the font
1960
1961 if (m_font.Ok())
1962 {
1963 HFONT hFont = m_font.GetResourceHandle();
1964 if (hFont == (HFONT) NULL)
1965 {
1966 wxLogDebug(wxT("::SelectObject failed in wxDC::SetFont."));
1967 }
1968 if (!m_hOldFont)
1969 m_hOldFont = (WXHFONT) hFont;
1970 }
1971 } // end of wxDC::SetFont
1972
1973 void wxDC::SetPen(
1974 const wxPen& rPen
1975 )
1976 {
1977 wxCHECK_RET( Ok(), wxT("invalid window dc") );
1978
1979 if (m_pen == rPen)
1980 return;
1981 m_pen = rPen;
1982 if (!m_pen.Ok())
1983 return;
1984
1985 if (m_hOldPen)
1986 m_hOldPen = 0L;
1987 m_pen = rPen;
1988
1989 if (!m_pen.Ok())
1990 {
1991 if (m_hOldPen)
1992 {
1993 m_pen.SetPS((HPS)m_hOldPen);
1994 }
1995 m_hOldPen = 0L;
1996 }
1997
1998 if (m_pen.Ok())
1999 {
2000 if (m_pen.GetResourceHandle())
2001 {
2002 m_pen.SetPS(m_hPS);
2003 if (!m_hOldPen)
2004 m_hOldPen = m_pen.GetPS();
2005 }
2006 ::GpiSetColor(m_hPS, m_pen.GetColour().GetPixel());
2007 }
2008 }
2009
2010 void wxDC::SetBrush(
2011 const wxBrush& rBrush
2012 )
2013 {
2014 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2015
2016 if (m_hOldBrush)
2017 m_hOldBrush = 0L;
2018 m_brush = rBrush;
2019 if (!m_brush.Ok())
2020 if (m_brush == rBrush)
2021 return;
2022 if (!m_brush.Ok())
2023 if (m_hOldBrush)
2024 m_hOldBrush = 0L;
2025
2026 if (!m_brush.Ok())
2027 {
2028 if (m_hOldBrush)
2029 {
2030 m_brush.SetPS((HPS)m_hOldBrush);
2031 }
2032 m_hOldBrush = 0L;
2033 }
2034
2035 if (m_brush.Ok())
2036 {
2037 if (m_brush.GetResourceHandle())
2038 {
2039 m_brush.SetPS(m_hPS);
2040 if (!m_hOldBrush)
2041 m_hOldBrush = (WXHWND)m_brush.GetPS();
2042 }
2043 }
2044 } // end of wxDC::SetBrush
2045
2046 void wxDC::SetBackground(
2047 const wxBrush& rBrush
2048 )
2049 {
2050 m_backgroundBrush = rBrush;
2051 if (!m_backgroundBrush.Ok())
2052 return;
2053 if (m_pCanvas)
2054 {
2055 bool bCustomColours = true;
2056
2057 //
2058 // If we haven't specified wxUSER_COLOURS, don't allow the panel/dialog box to
2059 // change background colours from the control-panel specified colours.
2060 //
2061 if (m_pCanvas->IsKindOf(CLASSINFO(wxWindow)) &&
2062 ((m_pCanvas->GetWindowStyleFlag() & wxUSER_COLOURS) != wxUSER_COLOURS))
2063 bCustomColours = false;
2064 if (bCustomColours)
2065 {
2066 if (m_backgroundBrush.GetStyle()==wxTRANSPARENT)
2067 {
2068 m_pCanvas->SetTransparent(true);
2069 }
2070 else
2071 {
2072 //
2073 // Setting the background brush of a DC
2074 // doesn't affect the window background colour. However,
2075 // I'm leaving in the transparency setting because it's needed by
2076 // various controls (e.g. wxStaticText) to determine whether to draw
2077 // transparently or not. TODO: maybe this should be a new function
2078 // wxWindow::SetTransparency(). Should that apply to the child itself, or the
2079 // parent?
2080 // m_canvas->SetBackgroundColour(m_backgroundBrush.GetColour());
2081 //
2082 m_pCanvas->SetTransparent(false);
2083 }
2084 }
2085 }
2086 COLORREF vNewColor = m_backgroundBrush.GetColour().GetPixel();
2087 (void)::GpiSetBackColor((HPS)m_hPS, (LONG)vNewColor);
2088 } // end of wxDC::SetBackground
2089
2090 void wxDC::SetBackgroundMode(
2091 int nMode
2092 )
2093 {
2094 m_backgroundMode = nMode;
2095 } // end of wxDC::SetBackgroundMode
2096
2097 void wxDC::SetLogicalFunction(
2098 int nFunction
2099 )
2100 {
2101 m_logicalFunction = nFunction;
2102 SetRop((WXHDC)m_hDC);
2103 } // wxDC::SetLogicalFunction
2104
2105 void wxDC::SetRop(
2106 WXHDC hDC
2107 )
2108 {
2109 if (!hDC || m_logicalFunction < 0)
2110 return;
2111
2112 LONG lCRop;
2113 switch (m_logicalFunction)
2114 {
2115 case wxXOR:
2116 lCRop = FM_XOR;
2117 break;
2118
2119 case wxINVERT:
2120 lCRop = FM_INVERT;
2121 break;
2122
2123 case wxOR_REVERSE:
2124 lCRop = FM_MERGESRCNOT;
2125 break;
2126
2127 case wxAND_REVERSE:
2128 lCRop = FM_NOTMASKSRC;
2129 break;
2130
2131 case wxCLEAR:
2132 lCRop = FM_ONE;
2133 break;
2134
2135 case wxSET:
2136 lCRop = FM_ZERO;
2137 break;
2138
2139 case wxSRC_INVERT:
2140 lCRop = FM_MERGENOTSRC;
2141 break;
2142
2143 case wxOR_INVERT:
2144 lCRop = FM_MERGESRCNOT;
2145 break;
2146
2147 case wxAND:
2148 lCRop = FM_AND;
2149 break;
2150
2151 case wxOR:
2152 lCRop = FM_OR;
2153 break;
2154
2155 case wxAND_INVERT:
2156 lCRop = FM_SUBTRACT;
2157 break;
2158
2159 case wxEQUIV:
2160 case wxNAND:
2161 case wxCOPY:
2162 default:
2163 lCRop = FM_OVERPAINT;
2164 break;
2165 }
2166 ::GpiSetMix((HPS)hDC, lCRop);
2167 } // end of wxDC::SetRop
2168
2169 bool wxDC::StartDoc(
2170 const wxString& rsMessage
2171 )
2172 {
2173 // We might be previewing, so return true to let it continue.
2174 return true;
2175 } // end of wxDC::StartDoc
2176
2177 void wxDC::EndDoc()
2178 {
2179 } // end of wxDC::EndDoc
2180
2181 void wxDC::StartPage()
2182 {
2183 } // end of wxDC::StartPage
2184
2185 void wxDC::EndPage()
2186 {
2187 } // end of wxDC::EndPage
2188
2189 // ---------------------------------------------------------------------------
2190 // text metrics
2191 // ---------------------------------------------------------------------------
2192
2193 wxCoord wxDC::GetCharHeight() const
2194 {
2195 FONTMETRICS vFM; // metrics structure
2196
2197 ::GpiQueryFontMetrics( m_hPS
2198 ,sizeof(FONTMETRICS)
2199 ,&vFM
2200 );
2201 return YDEV2LOGREL(vFM.lXHeight);
2202 }
2203
2204 wxCoord wxDC::GetCharWidth() const
2205 {
2206 FONTMETRICS vFM; // metrics structure
2207
2208 ::GpiQueryFontMetrics( m_hPS
2209 ,sizeof(FONTMETRICS)
2210 ,&vFM
2211 );
2212 return XDEV2LOGREL(vFM.lAveCharWidth);
2213 }
2214
2215 void wxDC::DoGetTextExtent(
2216 const wxString& rsString
2217 , wxCoord* pvX
2218 , wxCoord* pvY
2219 , wxCoord* pvDescent
2220 , wxCoord* pvExternalLeading
2221 , wxFont* pTheFont
2222 ) const
2223 {
2224 POINTL avPoint[TXTBOX_COUNT];
2225 POINTL vPtMin;
2226 POINTL vPtMax;
2227 int i;
2228 int l;
2229 FONTMETRICS vFM; // metrics structure
2230 BOOL bRc;
2231 ERRORID vErrorCode; // last error id code
2232 wxFont* pFontToUse = (wxFont*)pTheFont;
2233
2234 wxChar zMsg[128]; // DEBUG
2235 wxString sError;
2236
2237 if (!pFontToUse)
2238 pFontToUse = (wxFont*)&m_font;
2239 l = rsString.length();
2240
2241 //
2242 // In world coordinates.
2243 //
2244 bRc = ::GpiQueryTextBox( m_hPS
2245 ,l
2246 ,(PCH)rsString.c_str()
2247 ,TXTBOX_COUNT // return maximum information
2248 ,avPoint // array of coordinates points
2249 );
2250 if(!bRc)
2251 {
2252 vErrorCode = ::WinGetLastError(wxGetInstance());
2253 sError = wxPMErrorToStr(vErrorCode);
2254 // DEBUG
2255 wxSprintf(zMsg, _T("GpiQueryTextBox for %s: failed with Error: %lx - %s"), rsString.c_str(), vErrorCode, sError.c_str());
2256 (void)wxMessageBox( _T("wxWidgets Menu sample")
2257 ,zMsg
2258 ,wxICON_INFORMATION
2259 );
2260 }
2261
2262 vPtMin.x = avPoint[0].x;
2263 vPtMax.x = avPoint[0].x;
2264 vPtMin.y = avPoint[0].y;
2265 vPtMax.y = avPoint[0].y;
2266 for (i = 1; i < 4; i++)
2267 {
2268 if(vPtMin.x > avPoint[i].x) vPtMin.x = avPoint[i].x;
2269 if(vPtMin.y > avPoint[i].y) vPtMin.y = avPoint[i].y;
2270 if(vPtMax.x < avPoint[i].x) vPtMax.x = avPoint[i].x;
2271 if(vPtMax.y < avPoint[i].y) vPtMax.y = avPoint[i].y;
2272 }
2273 ::GpiQueryFontMetrics( m_hPS
2274 ,sizeof(FONTMETRICS)
2275 ,&vFM
2276 );
2277
2278 if (pvX)
2279 *pvX = (wxCoord)(vPtMax.x - vPtMin.x + 1);
2280 if (pvY)
2281 *pvY = (wxCoord)(vPtMax.y - vPtMin.y + 1);
2282 if (pvDescent)
2283 *pvDescent = vFM.lMaxDescender;
2284 if (pvExternalLeading)
2285 *pvExternalLeading = vFM.lExternalLeading;
2286 }
2287
2288 void wxDC::SetMapMode(
2289 int nMode
2290 )
2291 {
2292 int nPixelWidth = 0;
2293 int nPixelHeight = 0;
2294 int nMmWidth = 1;
2295 int nMmHeight = 1;
2296 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2297
2298 m_mappingMode = nMode;
2299
2300 if(::DevQueryCaps( m_hDC
2301 ,CAPS_FAMILY
2302 ,CAPS_VERTICAL_RESOLUTION
2303 ,lArray
2304 ))
2305 {
2306 LONG lHorzRes;
2307 LONG lVertRes;
2308
2309 nPixelWidth = lArray[CAPS_WIDTH];
2310 nPixelHeight = lArray[CAPS_HEIGHT];
2311 lHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2312 lVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2313 nMmWidth = (lHorzRes/1000) * nPixelWidth;
2314 nMmWidth = (lVertRes/1000) * nPixelHeight;
2315 }
2316 if ((nPixelWidth == 0) || (nPixelHeight == 0) || (nMmWidth == 0) || (nMmHeight == 0))
2317 {
2318 return;
2319 }
2320
2321 double dMm2pixelsX = nPixelWidth/nMmWidth;
2322 double dMm2pixelsY = nPixelHeight/nMmHeight;
2323
2324 switch (nMode)
2325 {
2326 case wxMM_TWIPS:
2327 m_logicalScaleX = (twips2mm * dMm2pixelsX);
2328 m_logicalScaleY = (twips2mm * dMm2pixelsY);
2329 break;
2330
2331 case wxMM_POINTS:
2332 m_logicalScaleX = (pt2mm * dMm2pixelsX);
2333 m_logicalScaleY = (pt2mm * dMm2pixelsY);
2334 break;
2335
2336 case wxMM_METRIC:
2337 m_logicalScaleX = dMm2pixelsX;
2338 m_logicalScaleY = dMm2pixelsY;
2339 break;
2340
2341 case wxMM_LOMETRIC:
2342 m_logicalScaleX = (dMm2pixelsX/10.0);
2343 m_logicalScaleY = (dMm2pixelsY/10.0);
2344 break;
2345
2346 case wxMM_TEXT:
2347 default:
2348 m_logicalScaleX = 1.0;
2349 m_logicalScaleY = 1.0;
2350 break;
2351 }
2352 SIZEL vSize;
2353 ULONG ulOptions;
2354
2355 ulOptions = ::GpiQueryPS(m_hPS, &vSize);
2356 if (!ulOptions & PU_ARBITRARY)
2357 {
2358 ulOptions = PU_ARBITRARY | GPIF_DEFAULT;
2359 ::GpiSetPS(m_hPS, &vSize, ulOptions);
2360 }
2361 m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
2362 m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
2363 // ????
2364 }; // end of wxDC::SetMapMode
2365
2366 void wxDC::SetUserScale(
2367 double dX
2368 , double dY
2369 )
2370 {
2371 m_userScaleX = dX;
2372 m_userScaleY = dY;
2373
2374 SetMapMode(m_mappingMode);
2375 } // end of wxDC::SetUserScale
2376
2377 void wxDC::SetAxisOrientation(
2378 bool bXLeftRight
2379 , bool bYBottomUp
2380 )
2381 {
2382 m_signX = bXLeftRight ? 1 : -1;
2383 m_signY = bYBottomUp ? -1 : 1;
2384
2385 SetMapMode(m_mappingMode);
2386 } // end of wxDC::SetAxisOrientation
2387
2388 void wxDC::SetSystemScale(
2389 double dX
2390 , double dY
2391 )
2392 {
2393 m_scaleX = dX;
2394 m_scaleY = dY;
2395
2396 SetMapMode(m_mappingMode);
2397 } // end of wxDC::SetSystemScale
2398
2399 void wxDC::SetLogicalOrigin(
2400 wxCoord vX
2401 , wxCoord vY
2402 )
2403 {
2404 RECTL vRect;
2405
2406 ::GpiQueryPageViewport( m_hPS
2407 ,&vRect
2408 );
2409 vRect.xRight -= vX;
2410 vRect.yTop += vY;
2411 vRect.xLeft = vX;
2412 vRect.yBottom = vY;
2413 ::GpiSetPageViewport( m_hPS
2414 ,&vRect
2415 );
2416 }; // end of wxDC::SetLogicalOrigin
2417
2418 void wxDC::SetDeviceOrigin(
2419 wxCoord vX
2420 , wxCoord vY
2421 )
2422 {
2423 RECTL vRect;
2424
2425 m_deviceOriginX = vX;
2426 m_deviceOriginY = vY;
2427 ::GpiQueryPageViewport( m_hPS
2428 ,&vRect
2429 );
2430 vRect.xLeft += vX;
2431 vRect.xRight += vX;
2432 vRect.yBottom -= vY;
2433 vRect.yTop -= vY;
2434 ::GpiSetPageViewport( m_hPS
2435 ,&vRect
2436 );
2437 }; // end of wxDC::SetDeviceOrigin
2438
2439 // ---------------------------------------------------------------------------
2440 // coordinates transformations
2441 // ---------------------------------------------------------------------------
2442
2443 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2444 {
2445 return (wxCoord) (((x) - m_deviceOriginX)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX) - m_logicalOriginX);
2446 }
2447
2448 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2449 {
2450 // axis orientation is not taken into account for conversion of a distance
2451 return (wxCoord) ((x)/(m_logicalScaleX*m_userScaleX*m_scaleX));
2452 }
2453
2454 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2455 {
2456 return (wxCoord) (((y) - m_deviceOriginY)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY) - m_logicalOriginY);
2457 }
2458
2459 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2460 {
2461 // axis orientation is not taken into account for conversion of a distance
2462 return (wxCoord) ((y)/(m_logicalScaleY*m_userScaleY*m_scaleY));
2463 }
2464
2465 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2466 {
2467 return (wxCoord) ((x - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX);
2468 }
2469
2470 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2471 {
2472 // axis orientation is not taken into account for conversion of a distance
2473 return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_scaleX);
2474 }
2475
2476 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2477 {
2478 return (wxCoord) ((y - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY);
2479 }
2480
2481 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2482 {
2483 // axis orientation is not taken into account for conversion of a distance
2484 return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY);
2485 }
2486
2487 // ---------------------------------------------------------------------------
2488 // bit blit
2489 // ---------------------------------------------------------------------------
2490
2491 bool wxDC::DoBlit(
2492 wxCoord vXdest
2493 , wxCoord vYdest
2494 , wxCoord vWidth
2495 , wxCoord vHeight
2496 , wxDC* pSource
2497 , wxCoord vXsrc
2498 , wxCoord vYsrc
2499 , int nRop
2500 , bool bUseMask
2501 , wxCoord vXsrcMask
2502 , wxCoord vYsrcMask
2503 )
2504 {
2505 wxMask* pMask = NULL;
2506 CHARBUNDLE vCbnd;
2507 COLORREF vOldTextColor;
2508 COLORREF vOldBackground = ::GpiQueryBackColor(m_hPS);
2509
2510 if (bUseMask)
2511 {
2512 const wxBitmap& rBmp = pSource->m_vSelectedBitmap;
2513
2514 pMask = rBmp.GetMask();
2515 if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
2516 {
2517 bUseMask = false;
2518 }
2519 }
2520
2521 ::GpiQueryAttrs( m_hPS
2522 ,PRIM_CHAR
2523 ,CBB_COLOR
2524 ,&vCbnd
2525 );
2526 vOldTextColor = (COLORREF)vCbnd.lColor;
2527
2528 if (m_textForegroundColour.Ok())
2529 {
2530 vCbnd.lColor = (LONG)m_textForegroundColour.GetPixel();
2531 ::GpiSetAttrs( m_hPS // presentation-space handle
2532 ,PRIM_CHAR // Char primitive.
2533 ,CBB_COLOR // sets color.
2534 ,0
2535 ,&vCbnd // buffer for attributes.
2536 );
2537 }
2538 if (m_textBackgroundColour.Ok())
2539 {
2540 ::GpiSetBackColor(m_hPS, (LONG)m_textBackgroundColour.GetPixel());
2541 }
2542
2543 LONG lRop = ROP_SRCCOPY;
2544
2545 switch (nRop)
2546 {
2547 case wxXOR: lRop = ROP_SRCINVERT; break;
2548 case wxINVERT: lRop = ROP_DSTINVERT; break;
2549 case wxOR_REVERSE: lRop = 0x00DD0228; break;
2550 case wxAND_REVERSE: lRop = ROP_SRCERASE; break;
2551 case wxCLEAR: lRop = ROP_ZERO; break;
2552 case wxSET: lRop = ROP_ONE; break;
2553 case wxOR_INVERT: lRop = ROP_MERGEPAINT; break;
2554 case wxAND: lRop = ROP_SRCAND; break;
2555 case wxOR: lRop = ROP_SRCPAINT; break;
2556 case wxEQUIV: lRop = 0x00990066; break;
2557 case wxNAND: lRop = 0x007700E6; break;
2558 case wxAND_INVERT: lRop = 0x00220326; break;
2559 case wxCOPY: lRop = ROP_SRCCOPY; break;
2560 case wxNO_OP: lRop = ROP_NOTSRCERASE; break;
2561 case wxSRC_INVERT: lRop = ROP_SRCINVERT; break;
2562 case wxNOR: lRop = ROP_NOTSRCCOPY; break;
2563 default:
2564 wxFAIL_MSG( wxT("unsupported logical function") );
2565 return false;
2566 }
2567
2568 bool bSuccess;
2569
2570 if (bUseMask)
2571 {
2572 //
2573 // Blit bitmap with mask
2574 //
2575
2576 //
2577 // Create a temp buffer bitmap and DCs/PSs to access it and the mask
2578 //
2579 HDC hDCMask;
2580 HDC hDCBuffer;
2581 HPS hPSMask;
2582 HPS hPSBuffer;
2583 DEVOPENSTRUC vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
2584 BITMAPINFOHEADER2 vBmpHdr;
2585 HBITMAP hBufBitmap;
2586 SIZEL vSize = {0, 0};
2587 LONG rc;
2588
2589 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
2590 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
2591 vBmpHdr.cx = vWidth;
2592 vBmpHdr.cy = vHeight;
2593 vBmpHdr.cPlanes = 1;
2594 vBmpHdr.cBitCount = 24;
2595
2596 #if wxUSE_DC_CACHEING
2597 if (true)
2598 {
2599 //
2600 // create a temp buffer bitmap and DCs to access it and the mask
2601 //
2602 wxDCCacheEntry* pDCCacheEntry1 = FindDCInCache( NULL
2603 ,pSource->GetHPS()
2604 );
2605 wxDCCacheEntry* pDCCacheEntry2 = FindDCInCache( pDCCacheEntry1
2606 ,GetHPS()
2607 );
2608 wxDCCacheEntry* pBitmapCacheEntry = FindBitmapInCache( GetHPS()
2609 ,vWidth
2610 ,vHeight
2611 );
2612
2613 hPSMask = pDCCacheEntry1->m_hPS;
2614 hDCBuffer = (HDC)pDCCacheEntry2->m_hPS;
2615 hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap;
2616 }
2617 else
2618 #endif
2619 {
2620 hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
2621 hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
2622 hPSMask = ::GpiCreatePS(vHabmain, hDCMask, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
2623 hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
2624 hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL);
2625 }
2626
2627 POINTL aPoint1[4] = { {0, 0}
2628 ,{vWidth, vHeight}
2629 ,{vXdest, vYdest}
2630 ,{vXdest + vWidth, vYdest + vHeight}
2631 };
2632 POINTL aPoint2[4] = { {0, 0}
2633 ,{vWidth, vHeight}
2634 ,{vXsrc, vYsrc}
2635 ,{vXsrc + vWidth, vYsrc + vHeight}
2636 };
2637 POINTL aPoint3[4] = { {vXdest, vYdest}
2638 ,{vXdest + vWidth, vYdest + vHeight}
2639 ,{vXsrc, vYsrc}
2640 ,{vXsrc + vWidth, vYsrc + vHeight}
2641 };
2642 POINTL aPoint4[4] = { {vXdest, vYdest}
2643 ,{vXdest + vWidth, vYdest + vHeight}
2644 ,{0, 0}
2645 ,{vWidth, vHeight}
2646 };
2647 ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap());
2648 ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap);
2649
2650 //
2651 // Copy dest to buffer
2652 //
2653 rc = ::GpiBitBlt( hPSBuffer
2654 ,GetHPS()
2655 ,4L
2656 ,aPoint1
2657 ,ROP_SRCCOPY
2658 ,BBO_IGNORE
2659 );
2660 if (rc == GPI_ERROR)
2661 {
2662 wxLogLastError(wxT("BitBlt"));
2663 }
2664
2665 //
2666 // Copy src to buffer using selected raster op
2667 //
2668 rc = ::GpiBitBlt( hPSBuffer
2669 ,GetHPS()
2670 ,4L
2671 ,aPoint2
2672 ,lRop
2673 ,BBO_IGNORE
2674 );
2675 if (rc == GPI_ERROR)
2676 {
2677 wxLogLastError(wxT("BitBlt"));
2678 }
2679
2680 //
2681 // Set masked area in buffer to BLACK (pixel value 0)
2682 //
2683 COLORREF vPrevBkCol = ::GpiQueryBackColor(GetHPS());
2684 COLORREF vPrevCol = ::GpiQueryColor(GetHPS());
2685
2686 ::GpiSetBackColor(GetHPS(), OS2RGB(255, 255, 255));
2687 ::GpiSetColor(GetHPS(), OS2RGB(0, 0, 0));
2688
2689 rc = ::GpiBitBlt( hPSBuffer
2690 ,hPSMask
2691 ,4L
2692 ,aPoint2
2693 ,ROP_SRCAND
2694 ,BBO_IGNORE
2695 );
2696 if (rc == GPI_ERROR)
2697 {
2698 wxLogLastError(wxT("BitBlt"));
2699 }
2700
2701 //
2702 // Set unmasked area in dest to BLACK
2703 //
2704 ::GpiSetBackColor(GetHPS(), OS2RGB(0, 0, 0));
2705 ::GpiSetColor(GetHPS(), OS2RGB(255, 255, 255));
2706 rc = ::GpiBitBlt( GetHPS()
2707 ,hPSMask
2708 ,4L
2709 ,aPoint3
2710 ,ROP_SRCAND
2711 ,BBO_IGNORE
2712 );
2713 if (rc == GPI_ERROR)
2714 {
2715 wxLogLastError(wxT("BitBlt"));
2716 }
2717
2718 //
2719 // Restore colours to original values
2720 //
2721 ::GpiSetBackColor(GetHPS(), vPrevBkCol);
2722 ::GpiSetColor(GetHPS(), vPrevCol);
2723
2724 //
2725 // OR buffer to dest
2726 //
2727 rc = ::GpiBitBlt( GetHPS()
2728 ,hPSMask
2729 ,4L
2730 ,aPoint4
2731 ,ROP_SRCPAINT
2732 ,BBO_IGNORE
2733 );
2734 if (rc == GPI_ERROR)
2735 {
2736 bSuccess = false;
2737 wxLogLastError(wxT("BitBlt"));
2738 }
2739
2740 //
2741 // Tidy up temporary DCs and bitmap
2742 //
2743 ::GpiSetBitmap(hPSMask, NULLHANDLE);
2744 ::GpiSetBitmap(hPSBuffer, NULLHANDLE);
2745 #if !wxUSE_DC_CACHEING
2746 ::GpiDestroyPS(hPSMask);
2747 ::GpiDestroyPS(hPSBuffer);
2748 ::DevCloseDC(hDCMask);
2749 ::DevCloseDC(hDCBuffer);
2750 ::GpiDeleteBitmap(hBufBitmap);
2751 #endif
2752 bSuccess = true;
2753 }
2754 else // no mask, just BitBlt() it
2755 {
2756 POINTL aPoint[4] = { {vXdest, vYdest}
2757 ,{vXdest + vWidth, vYdest + vHeight}
2758 ,{vXsrc, vYsrc}
2759 ,{vXsrc + vWidth, vYsrc + vHeight}
2760 };
2761
2762 bSuccess = (::GpiBitBlt( m_hPS
2763 ,pSource->GetHPS()
2764 ,4L
2765 ,aPoint
2766 ,lRop
2767 ,BBO_IGNORE
2768 ) != GPI_ERROR);
2769 if (!bSuccess )
2770 {
2771 wxLogLastError(wxT("BitBlt"));
2772 }
2773 }
2774 vCbnd.lColor = (LONG)vOldTextColor;
2775 ::GpiSetAttrs( m_hPS // presentation-space handle
2776 ,PRIM_CHAR // Char primitive.
2777 ,CBB_COLOR // sets color.
2778 ,0
2779 ,&vCbnd // buffer for attributes.
2780 );
2781 ::GpiSetBackColor(m_hPS, (LONG)vOldBackground);
2782 return bSuccess;
2783 }
2784
2785 void wxDC::DoGetSize(
2786 int* pnWidth
2787 , int* pnHeight
2788 ) const
2789 {
2790 LONG lArray[CAPS_HEIGHT];
2791
2792 if(::DevQueryCaps( m_hDC
2793 ,CAPS_FAMILY
2794 ,CAPS_HEIGHT
2795 ,lArray
2796 ))
2797 {
2798 *pnWidth = lArray[CAPS_WIDTH];
2799 *pnHeight = lArray[CAPS_HEIGHT];
2800 }
2801 }; // end of wxDC::DoGetSize(
2802
2803 void wxDC::DoGetSizeMM(
2804 int* pnWidth
2805 , int* pnHeight
2806 ) const
2807 {
2808 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2809
2810 if(::DevQueryCaps( m_hDC
2811 ,CAPS_FAMILY
2812 ,CAPS_VERTICAL_RESOLUTION
2813 ,lArray
2814 ))
2815 {
2816 int nWidth;
2817 int nHeight;
2818 int nHorzRes;
2819 int nVertRes;
2820
2821 nWidth = lArray[CAPS_WIDTH];
2822 nHeight = lArray[CAPS_HEIGHT];
2823 nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2824 nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2825 nWidth = (nHorzRes/1000) * nWidth;
2826 nHeight = (nVertRes/1000) * nHeight;
2827 }
2828 }; // end of wxDC::DoGetSizeMM
2829
2830 wxSize wxDC::GetPPI() const
2831 {
2832 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2833 int nWidth = 0;
2834 int nHeight = 0;
2835
2836 if(::DevQueryCaps( m_hDC
2837 ,CAPS_FAMILY
2838 ,CAPS_VERTICAL_RESOLUTION
2839 ,lArray
2840 ))
2841 {
2842 int nPelWidth;
2843 int nPelHeight;
2844 int nHorzRes;
2845 int nVertRes;
2846
2847 nPelWidth = lArray[CAPS_WIDTH];
2848 nPelHeight = lArray[CAPS_HEIGHT];
2849 nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2850 nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2851 nWidth = (int)((nHorzRes/39.3) * nPelWidth);
2852 nHeight = (int)((nVertRes/39.3) * nPelHeight);
2853 }
2854 return (wxSize(nWidth,nHeight));
2855 } // end of wxDC::GetPPI
2856
2857 void wxDC::SetLogicalScale(
2858 double dX
2859 , double dY
2860 )
2861 {
2862 m_logicalScaleX = dX;
2863 m_logicalScaleY = dY;
2864 }; // end of wxDC::SetLogicalScale
2865
2866
2867
wxWidgets (Impactor)