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[wxWidgets.git] / src / os2 / dc.cpp
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 #include "wx/module.h"
27 #endif
28
29 #include "wx/dcprint.h"
30
31 #include <string.h>
32 #include <math.h>
33
34 #include "wx/os2/private.h"
35
36 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
37
38 //
39 // wxWindows uses the Microsoft convention that the origin is the UPPER left.
40 // Native OS/2 however in the GPI and PM define the origin as the LOWER left.
41 // In order to map OS/2 GPI/PM y coordinates to wxWindows coordinates we must
42 // perform the following transformation:
43 //
44 // Parent object height: POBJHEIGHT
45 // Desried origin: WXORIGINY
46 // Object to place's height: OBJHEIGHT
47 //
48 // To get the OS2 position from the wxWindows one:
49 //
50 // OS2Y = POBJHEIGHT - (WXORIGINY + OBJHEIGHT)
51 //
52 // For OS/2 wxDC's we will always determine m_vRclPaint as the size of the
53 // OS/2 Presentation Space associated with the device context. y is the
54 // desired application's y coordinate of the origin in wxWindows space.
55 // objy is the height of the object we are going to draw.
56 //
57 #define OS2Y(y, objy) ((m_vRclPaint.yTop - m_vRclPaint.yBottom) - (y + objy))
58
59 // ---------------------------------------------------------------------------
60 // constants
61 // ---------------------------------------------------------------------------
62
63 static const int VIEWPORT_EXTENT = 1000;
64
65 static const int MM_POINTS = 9;
66 static const int MM_METRIC = 10;
67
68 // usually this is defined in math.h
69 #ifndef M_PI
70 static const double M_PI = 3.14159265358979323846;
71 #endif // M_PI
72
73 // ---------------------------------------------------------------------------
74 // private functions
75 // ---------------------------------------------------------------------------
76
77 // convert degrees to radians
78 static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
79
80 int SetTextColor(
81 HPS hPS
82 , int nForegroundColour
83 )
84 {
85 CHARBUNDLE vCbnd;
86
87 vCbnd.lColor = nForegroundColour;
88 ::GpiSetAttrs( hPS // presentation-space handle
89 ,PRIM_CHAR // Char primitive.
90 ,CBB_COLOR // sets color.
91 ,0 //
92 ,&vCbnd // buffer for attributes.
93 );
94 return 0;
95 }
96
97 int QueryTextBkColor(
98 HPS hPS
99 )
100 {
101 CHARBUNDLE vCbnd;
102
103 ::GpiQueryAttrs( hPS // presentation-space handle
104 ,PRIM_CHAR // Char primitive.
105 ,CBB_BACK_COLOR // Background color.
106 ,&vCbnd // buffer for attributes.
107 );
108 return vCbnd.lBackColor;
109 }
110
111
112 int SetTextBkColor(
113 HPS hPS
114 , int nBackgroundColour
115 )
116 {
117 CHARBUNDLE vCbnd;
118 int rc;
119
120 rc = QueryTextBkColor(hPS);
121
122 vCbnd.lBackColor = nBackgroundColour;
123 ::GpiSetAttrs(hPS, // presentation-space handle
124 PRIM_CHAR, // Char primitive.
125 CBB_BACK_COLOR, // sets color.
126 0,
127 &vCbnd // buffer for attributes.
128 );
129 return rc;
130 }
131
132 int SetBkMode(
133 HPS hPS
134 , int nBackgroundMode
135 )
136 {
137 if(nBackgroundMode == wxTRANSPARENT)
138 ::GpiSetBackMix( hPS
139 ,BM_LEAVEALONE
140 );
141 else
142 // the background of the primitive takes over whatever is underneath.
143 ::GpiSetBackMix( hPS
144 ,BM_OVERPAINT
145 );
146 return 0;
147 }
148
149 // ===========================================================================
150 // implementation
151 // ===========================================================================
152
153 #if wxUSE_DC_CACHEING
154
155 /*
156 * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will
157 * improve it in due course, either using arrays, or simply storing pointers to one
158 * entry for the bitmap, and two for the DCs. -- JACS
159 */
160
161 // ---------------------------------------------------------------------------
162 // wxDCCacheEntry
163 // ---------------------------------------------------------------------------
164
165 wxList wxDC::m_svBitmapCache;
166 wxList wxDC::m_svDCCache;
167
168 wxDCCacheEntry::wxDCCacheEntry(
169 WXHBITMAP hBitmap
170 , int nWidth
171 , int nHeight
172 , int nDepth
173 )
174 {
175 m_hBitmap = hBitmap;
176 m_hPS = NULLHANDLE;
177 m_nWidth = nWidth;
178 m_nHeight = nHeight;
179 m_nDepth = nDepth;
180 } // end of wxDCCacheEntry::wxDCCacheEntry
181
182 wxDCCacheEntry::wxDCCacheEntry(
183 HPS hPS
184 , int nDepth
185 )
186 {
187 m_hBitmap = NULLHANDLE;
188 m_hPS = hPS;
189 m_nWidth = 0;
190 m_nHeight = 0;
191 m_nDepth = nDepth;
192 } // end of wxDCCacheEntry::wxDCCacheEntry
193
194 wxDCCacheEntry::~wxDCCacheEntry()
195 {
196 if (m_hBitmap)
197 ::GpiDeleteBitmap(m_hBitmap);
198 if (m_hPS)
199 ::GpiDestroyPS(m_hPS);
200 } // end of wxDCCacheEntry::~wxDCCacheEntry
201
202 wxDCCacheEntry* wxDC::FindBitmapInCache(
203 HPS hPS
204 , int nWidth
205 , int nHeight
206 )
207 {
208 int nDepth = 24; // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
209 wxNode* pNode = m_svBitmapCache.First();
210 BITMAPINFOHEADER2 vBmpHdr;
211
212 while(pNode)
213 {
214 wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data();
215
216 if (pEntry->m_nDepth == nDepth)
217 {
218 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
219
220 if (pEntry->m_nWidth < nWidth || pEntry->m_nHeight < nHeight)
221 {
222 ::GpiDeleteBitmap((HBITMAP)pEntry->m_hBitmap);
223 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
224 vBmpHdr.cx = nWidth;
225 vBmpHdr.cy = nHeight;
226 vBmpHdr.cPlanes = 1;
227 vBmpHdr.cBitCount = nDepth;
228
229 pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
230 ,&vBmpHdr
231 ,0L, NULL, NULL
232 );
233 if (!pEntry->m_hBitmap)
234 {
235 wxLogLastError(wxT("CreateCompatibleBitmap"));
236 }
237 pEntry->m_nWidth = nWidth;
238 pEntry->m_nHeight = nHeight;
239 return pEntry;
240 }
241 return pEntry;
242 }
243 pNode = pNode->Next();
244 }
245 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
246 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
247 vBmpHdr.cx = nWidth;
248 vBmpHdr.cy = nHeight;
249 vBmpHdr.cPlanes = 1;
250 vBmpHdr.cBitCount = nDepth;
251
252 WXHBITMAP hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS
253 ,&vBmpHdr
254 ,0L, NULL, NULL
255 );
256 if (!hBitmap)
257 {
258 wxLogLastError(wxT("CreateCompatibleBitmap"));
259 }
260 wxDCCacheEntry* pEntry = new wxDCCacheEntry( hBitmap
261 ,nWidth
262 ,nHeight
263 ,nDepth
264 );
265 AddToBitmapCache(pEntry);
266 return pEntry;
267 } // end of FindBitmapInCache
268
269 wxDCCacheEntry* wxDC::FindDCInCache(
270 wxDCCacheEntry* pNotThis
271 , HPS hPS
272 )
273 {
274 int nDepth = 24; // we'll fix this up later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
275 wxNode* pNode = m_svDCCache.First();
276
277 while(pNode)
278 {
279 wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data();
280
281 //
282 // Don't return the same one as we already have
283 //
284 if (!pNotThis || (pNotThis != pEntry))
285 {
286 if (pEntry->m_nDepth == nDepth)
287 {
288 return pEntry;
289 }
290 }
291 pNode = pNode->Next();
292 }
293 wxDCCacheEntry* pEntry = new wxDCCacheEntry( hPS
294 ,nDepth
295 );
296 AddToDCCache(pEntry);
297 return pEntry;
298 } // end of wxDC::FindDCInCache
299
300 void wxDC::AddToBitmapCache(
301 wxDCCacheEntry* pEntry
302 )
303 {
304 m_svBitmapCache.Append(pEntry);
305 } // end of wxDC::AddToBitmapCache
306
307 void wxDC::AddToDCCache(
308 wxDCCacheEntry* pEntry
309 )
310 {
311 m_svDCCache.Append(pEntry);
312 } // end of wxDC::AddToDCCache
313
314 void wxDC::ClearCache()
315 {
316 m_svBitmapCache.DeleteContents(TRUE);
317 m_svBitmapCache.Clear();
318 m_svBitmapCache.DeleteContents(FALSE);
319 m_svDCCache.DeleteContents(TRUE);
320 m_svDCCache.Clear();
321 m_svDCCache.DeleteContents(FALSE);
322 } // end of wxDC::ClearCache
323
324 // Clean up cache at app exit
325 class wxDCModule : public wxModule
326 {
327 public:
328 virtual bool OnInit() { return TRUE; }
329 virtual void OnExit() { wxDC::ClearCache(); }
330
331 private:
332 DECLARE_DYNAMIC_CLASS(wxDCModule)
333 }; // end of CLASS wxDCModule
334
335 IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
336
337 #endif // ndef for wxUSE_DC_CACHEING
338
339 // ---------------------------------------------------------------------------
340 // wxDC
341 // ---------------------------------------------------------------------------
342
343 wxDC::wxDC(void)
344 {
345 wxColour vColor;
346
347 m_pCanvas = NULL;
348
349 m_hOldBitmap = 0;
350 m_hOldPen = 0;
351 m_hOldBrush = 0;
352 m_hOldFont = 0;
353 m_hOldPalette = 0;
354
355 m_bOwnsDC = FALSE;
356 m_hDC = 0;
357 m_hOldPS = NULL;
358 m_hPS = NULL;
359 m_bIsPaintTime = FALSE; // True at Paint Time
360
361 vColor.InitFromName("BLACK");
362 m_pen.SetColour(vColor);
363 vColor.Set("WHITE");
364 m_brush.SetColour(vColor);
365 } // end of wxDC::wxDC
366
367 wxDC::~wxDC(void)
368 {
369 if ( m_hDC != 0 )
370 {
371 SelectOldObjects(m_hDC);
372
373 // if we own the HDC, we delete it, otherwise we just release it
374
375 if (m_bOwnsDC)
376 {
377 if(m_hPS)
378 {
379 ::GpiAssociate(m_hPS, NULLHANDLE);
380 ::GpiDestroyPS(m_hPS);
381 }
382 m_hPS = NULLHANDLE;
383 ::DevCloseDC((HDC)m_hDC);
384 }
385 else
386 {
387 //
388 // Just Dissacociate, not destroy if we don't own the DC
389 //
390 if(m_hPS)
391 {
392 ::GpiAssociate(m_hPS, NULLHANDLE);
393 }
394 }
395 }
396 } // end of wxDC::~wxDC
397
398 // This will select current objects out of the DC,
399 // which is what you have to do before deleting the
400 // DC.
401 void wxDC::SelectOldObjects(
402 WXHDC hPS
403 )
404 {
405 if (hPS)
406 {
407 if (m_hOldBitmap)
408 {
409 ::GpiSetBitmap(hPS, (HBITMAP) m_hOldBitmap);
410 if (m_vSelectedBitmap.Ok())
411 {
412 m_vSelectedBitmap.SetSelectedInto(NULL);
413 }
414 }
415 m_hOldBitmap = 0;
416 //
417 // OS/2 has no other native GDI objects to set in a PS/DC like windows
418 //
419 m_hOldPen = 0;
420 m_hOldBrush = 0;
421 m_hOldFont = 0;
422 m_hOldPalette = 0;
423 }
424
425 m_brush = wxNullBrush;
426 m_pen = wxNullPen;
427 m_palette = wxNullPalette;
428 m_font = wxNullFont;
429 m_backgroundBrush = wxNullBrush;
430 m_vSelectedBitmap = wxNullBitmap;
431 } // end of wxDC::SelectOldObjects
432
433 // ---------------------------------------------------------------------------
434 // clipping
435 // ---------------------------------------------------------------------------
436
437 #define DO_SET_CLIPPING_BOX() \
438 { \
439 RECTL rect; \
440 \
441 ::GpiQueryClipBox(m_hPS, &rect); \
442 \
443 m_clipX1 = (wxCoord) XDEV2LOG(rect.xLeft); \
444 m_clipY1 = (wxCoord) YDEV2LOG(rect.yTop); \
445 m_clipX2 = (wxCoord) XDEV2LOG(rect.xRight); \
446 m_clipY2 = (wxCoord) YDEV2LOG(rect.yBottom); \
447 }
448
449 void wxDC::DoSetClippingRegion(
450 wxCoord vX
451 , wxCoord vY
452 , wxCoord vWidth
453 , wxCoord vHeight
454 )
455 {
456 RECTL vRect;
457
458 vY = OS2Y(vY,vHeight);
459 m_clipping = TRUE;
460 vRect.xLeft = vX;
461 vRect.yTop = vY + vHeight;
462 vRect.xRight = vX + vWidth;
463 vRect.yBottom = vY;
464 ::GpiIntersectClipRectangle(m_hPS, &vRect);
465 DO_SET_CLIPPING_BOX()
466 } // end of wxDC::DoSetClippingRegion
467
468 void wxDC::DoSetClippingRegionAsRegion(
469 const wxRegion& rRegion
470 )
471 {
472 wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region"));
473 HRGN hRgnOld;
474
475 m_clipping = TRUE;
476 ::GpiSetClipRegion( m_hPS
477 ,(HRGN)rRegion.GetHRGN()
478 ,&hRgnOld
479 );
480 DO_SET_CLIPPING_BOX()
481 } // end of wxDC::DoSetClippingRegionAsRegion
482
483 void wxDC::DestroyClippingRegion(void)
484 {
485 if (m_clipping && m_hPS)
486 {
487 HRGN hRgnOld;
488 RECTL vRect;
489
490 // TODO: this should restore the previous clipped region
491 // so that OnPaint processing works correctly, and
492 // the update doesn't get destroyed after the first
493 // DestroyClippingRegion
494 vRect.xLeft = XLOG2DEV(0);
495 vRect.yTop = YLOG2DEV(32000);
496 vRect.xRight = XLOG2DEV(32000);
497 vRect.yBottom = YLOG2DEV(0);
498
499 HRGN hRgn = ::GpiCreateRegion(m_hPS, 1, &vRect);
500
501 ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld);
502 }
503 m_clipping = FALSE;
504 } // end of wxDC::DestroyClippingRegion
505
506 // ---------------------------------------------------------------------------
507 // query capabilities
508 // ---------------------------------------------------------------------------
509
510 bool wxDC::CanDrawBitmap() const
511 {
512 return TRUE;
513 }
514
515 bool wxDC::CanGetTextExtent() const
516 {
517 LONG lTechnology = 0L;
518
519 ::DevQueryCaps(GetHDC(), CAPS_TECHNOLOGY, 1L, &lTechnology);
520 return (lTechnology == CAPS_TECH_RASTER_DISPLAY) || (lTechnology == CAPS_TECH_RASTER_PRINTER);
521 } // end of wxDC::CanGetTextExtent
522
523 int wxDC::GetDepth() const
524 {
525 LONG lArray[CAPS_COLOR_BITCOUNT];
526 int nBitsPerPixel;
527
528 if(::DevQueryCaps( GetHDC()
529 ,CAPS_FAMILY
530 ,CAPS_COLOR_BITCOUNT
531 ,lArray
532 ))
533 {
534 nBitsPerPixel = (int)lArray[CAPS_COLOR_BITCOUNT];
535 }
536 return nBitsPerPixel;
537 } // end of wxDC::GetDepth
538
539 // ---------------------------------------------------------------------------
540 // drawing
541 // ---------------------------------------------------------------------------
542
543 void wxDC::Clear()
544 {
545 //
546 // If this is a canvas DC then just fill with the background color
547 // Otherwise purge the whole thing
548 //
549 if (m_pCanvas)
550 {
551 RECTL vRect;
552
553 ::GpiQueryClipBox(m_hPS, &vRect);
554 ::WinFillRect(m_hPS, &vRect, ::GpiQueryBackColor(m_hPS));
555 }
556 else
557 ::GpiErase(m_hPS);
558 } // end of wxDC::Clear
559
560 bool wxDC::DoFloodFill(
561 wxCoord vX
562 , wxCoord vY
563 , const wxColour& rCol
564 , int nStyle
565 )
566 {
567 POINTL vPtlPos;
568 LONG lColor;
569 LONG lOptions;
570 LONG lHits;
571 bool bSuccess = FALSE;
572
573 vPtlPos.x = vX; // Loads x-coordinate
574 vPtlPos.y = OS2Y(vY,0); // Loads y-coordinate
575 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
576 lColor = rCol.GetPixel();
577 lOptions = FF_BOUNDARY;
578 if(wxFLOOD_SURFACE == nStyle)
579 lOptions = FF_SURFACE;
580
581 if ((lHits = ::GpiFloodFill(m_hPS, lOptions, lColor)) != GPI_ERROR)
582 bSuccess = TRUE;
583 return TRUE;
584 } // end of wxDC::DoFloodFill
585
586 bool wxDC::DoGetPixel(
587 wxCoord vX
588 , wxCoord vY
589 , wxColour* pCol
590 ) const
591 {
592 POINTL vPoint;
593 LONG lColor;
594
595 vPoint.x = vX;
596 vPoint.y = OS2Y(vY,0);
597 lColor = ::GpiSetPel(m_hPS, &vPoint);
598
599 //
600 // Get the color of the pen
601 //
602 LONG lPencolor = 0x00ffffff;
603
604 if (m_pen.Ok())
605 {
606 lPencolor = m_pen.GetColour().GetPixel();
607 }
608
609 //
610 // return the color of the pixel
611 //
612 if(pCol)
613 pCol->Set( GetRValue(lColor)
614 ,GetGValue(lColor)
615 ,GetBValue(lColor)
616 );
617 return(lColor == lPencolor);
618 } // end of wxDC::DoGetPixel
619
620 void wxDC::DoCrossHair(
621 wxCoord vX
622 , wxCoord vY
623 )
624 {
625 vY = OS2Y(vY,0);
626
627 wxCoord vX1 = vX - VIEWPORT_EXTENT;
628 wxCoord vY1 = vY - VIEWPORT_EXTENT;
629 wxCoord vX2 = vX + VIEWPORT_EXTENT;
630 wxCoord vY2 = vY + VIEWPORT_EXTENT;
631 POINTL vPoint[4];
632
633 vPoint[0].x = vX1;
634 vPoint[0].y = vY;
635
636 vPoint[1].x = vX2;
637 vPoint[1].y = vY;
638
639 ::GpiMove(m_hPS, &vPoint[0]);
640 ::GpiLine(m_hPS, &vPoint[1]);
641
642 vPoint[2].x = vX;
643 vPoint[2].y = vY1;
644
645 vPoint[3].x = vX;
646 vPoint[3].y = vY2;
647
648 ::GpiMove(m_hPS, &vPoint[2]);
649 ::GpiLine(m_hPS, &vPoint[3]);
650 CalcBoundingBox(vX1, vY1);
651 CalcBoundingBox(vX2, vY2);
652 } // end of wxDC::DoCrossHair
653
654 void wxDC::DoDrawLine(
655 wxCoord vX1
656 , wxCoord vY1
657 , wxCoord vX2
658 , wxCoord vY2
659 )
660 {
661 POINTL vPoint[2];
662 COLORREF vColor = 0x00ffffff;
663
664 //
665 // Might be a memory DC with no Paint rect.
666 //
667 if (!(m_vRclPaint.yTop == 0 &&
668 m_vRclPaint.yBottom == 0 &&
669 m_vRclPaint.xRight == 0 &&
670 m_vRclPaint.xLeft == 0))
671 {
672 vY1 = OS2Y(vY1,0);
673 vY2 = OS2Y(vY2,0);
674 }
675 else
676 {
677 if (m_vSelectedBitmap != wxNullBitmap)
678 {
679 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
680 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
681 vY1 = OS2Y(vY1,0);
682 vY2 = OS2Y(vY2,0);
683 }
684 }
685 vPoint[0].x = vX1;
686 vPoint[0].y = vY1;
687 vPoint[1].x = vX2;
688 vPoint[1].y = vY2;
689 if (m_pen.Ok())
690 {
691 vColor = m_pen.GetColour().GetPixel();
692 }
693 ::GpiSetColor(m_hPS, vColor);
694 ::GpiMove(m_hPS, &vPoint[0]);
695 ::GpiLine(m_hPS, &vPoint[1]);
696 CalcBoundingBox(vX1, vY1);
697 CalcBoundingBox(vX2, vY2);
698 } // end of wxDC::DoDrawLine
699
700 //////////////////////////////////////////////////////////////////////////////
701 // Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1)
702 // and ending at (x2, y2). The current pen is used for the outline and the
703 // current brush for filling the shape. The arc is drawn in an anticlockwise
704 // direction from the start point to the end point.
705 //////////////////////////////////////////////////////////////////////////////
706 void wxDC::DoDrawArc(
707 wxCoord vX1
708 , wxCoord vY1
709 , wxCoord vX2
710 , wxCoord vY2
711 , wxCoord vXc
712 , wxCoord vYc
713 )
714 {
715 POINTL vPtlPos;
716 POINTL vPtlArc[2]; // Structure for current position
717 int nDx;
718 int nDy;
719 double dRadius;
720 double dAngl1;
721 double dAngl2;
722 double dAnglmid;
723 wxCoord vXm;
724 wxCoord vYm;
725 ARCPARAMS vArcp; // Structure for arc parameters
726
727 if((vX1 == vXc && vY1 == vXc) || (vX2 == vXc && vY2 == vXc))
728 return; // Draw point ??
729 dRadius = 0.5 * ( hypot( (double)(vY1 - vYc)
730 ,(double)(vX1 - vXc)
731 ) +
732 hypot( (double)(vY2 - vYc)
733 ,(double)(vX2 - vXc)
734 )
735 );
736
737 dAngl1 = atan2( (double)(vY1 - vYc)
738 ,(double)(vX1 - vXc)
739 );
740 dAngl2 = atan2( (double)(vY2 - vYc)
741 ,(double)(vX2 - vXc)
742 );
743 if(dAngl2 < dAngl1)
744 dAngl2 += M_PI * 2;
745
746 //
747 // GpiPointArc can't draw full arc
748 //
749 if(dAngl2 == dAngl1 || (vX1 == vX2 && vY1 == vY2) )
750 {
751 //
752 // Medium point
753 //
754 dAnglmid = (dAngl1 + dAngl2)/2. + M_PI;
755 vXm = vXc + dRadius * cos(dAnglmid);
756 vYm = vYc + dRadius * sin(dAnglmid);
757 DoDrawArc( vX1, vY1
758 ,vXm, vYm
759 ,vXc, vYc
760 );
761 DoDrawArc( vXm, vYm
762 ,vX2, vY2
763 ,vXc, vYc
764 );
765 return;
766 }
767
768 //
769 // Medium point
770 //
771 dAnglmid = (dAngl1 + dAngl2)/2.;
772 vXm = vXc + dRadius * cos(dAnglmid);
773 vYm = vYc + dRadius * sin(dAnglmid);
774
775 //
776 // Ellipse main axis (r,q), (p,s) with center at (0,0) */
777 //
778 vArcp.lR = 0;
779 vArcp.lQ = 1;
780 vArcp.lP = 1;
781 vArcp.lS = 0;
782 ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
783
784 vPtlPos.x = vX1; // Loads x-coordinate
785 vPtlPos.y = vY1; // Loads y-coordinate
786 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
787 vPtlArc[0].x = vXm;
788 vPtlArc[0].y = vYm;
789 vPtlArc[1].x = vX2;
790 vPtlArc[1].y = vY2;
791 ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc
792 CalcBoundingBox( (vXc - dRadius)
793 ,(vYc - dRadius)
794 );
795 CalcBoundingBox( (vXc + dRadius)
796 ,(vYc + dRadius)
797 );
798 } // end of wxDC::DoDrawArc
799
800 void wxDC::DoDrawCheckMark(
801 wxCoord vX1
802 , wxCoord vY1
803 , wxCoord vWidth
804 , wxCoord vHeight
805 )
806 {
807 POINTL vPoint[2];
808
809 vY1 = OS2Y(vY1,vHeight);
810
811 vPoint[0].x = vX1;
812 vPoint[0].y = vY1;
813 vPoint[1].x = vX1 + vWidth;
814 vPoint[1].y = vY1 + vHeight;
815
816 ::GpiMove(m_hPS, &vPoint[0]);
817 ::GpiBox( m_hPS // handle to a presentation space
818 ,DRO_OUTLINE // draw the box outline ? or ?
819 ,&vPoint[1] // address of the corner
820 ,0L // horizontal corner radius
821 ,0L // vertical corner radius
822 );
823 if(vWidth > 4 && vHeight > 4)
824 {
825 int nTmp;
826
827 vPoint[0].x += 2; vPoint[0].y += 2;
828 vPoint[1].x -= 2; vPoint[1].y -= 2;
829 ::GpiMove(m_hPS, &vPoint[0]);
830 ::GpiLine(m_hPS, &vPoint[1]);
831 nTmp = vPoint[0].x;
832 vPoint[0].x = vPoint[1].x;
833 vPoint[1].x = nTmp;
834 ::GpiMove(m_hPS, &vPoint[0]);
835 ::GpiLine(m_hPS, &vPoint[1]);
836 }
837 CalcBoundingBox( vX1
838 ,vY1
839 );
840
841 wxCoord vX2 = vX1 + vWidth;
842 wxCoord vY2 = vY1 + vHeight;
843
844 CalcBoundingBox( vX2
845 ,vY2
846 );
847 } // end of wxDC::DoDrawCheckMark
848
849 void wxDC::DoDrawPoint(
850 wxCoord vX
851 , wxCoord vY
852 )
853 {
854 POINTL vPoint;
855 COLORREF vColor = 0x00ffffff;
856
857 if (m_pen.Ok())
858 {
859 vColor = m_pen.GetColour().GetPixel();
860 }
861 ::GpiSetColor(m_hPS, vColor);
862 vPoint.x = vX;
863 vPoint.y = OS2Y(vY,0);
864 ::GpiSetPel(m_hPS, &vPoint);
865 CalcBoundingBox( vX
866 ,vY
867 );
868 } // end of wxDC::DoDrawPoint
869
870 void wxDC::DoDrawPolygon(
871 int n
872 , wxPoint vPoints[]
873 , wxCoord vXoffset
874 , wxCoord vYoffset
875 , int nFillStyle
876 )
877 {
878 ULONG ulCount = 1; // Number of polygons.
879 POLYGON vPlgn; // polygon.
880 ULONG flOptions = 0L; // Drawing options.
881
882 //////////////////////////////////////////////////////////////////////////////
883 // This contains fields of option bits... to draw boundary lines as well as
884 // the area interior.
885 //
886 // Drawing boundary lines:
887 // POLYGON_NOBOUNDARY Does not draw boundary lines.
888 // POLYGON_BOUNDARY Draws boundary lines (the default).
889 //
890 // Construction of the area interior:
891 // POLYGON_ALTERNATE Constructs interior in alternate mode
892 // (the default).
893 // POLYGON_WINDING Constructs interior in winding mode.
894 //////////////////////////////////////////////////////////////////////////////
895
896 ULONG flModel = 0L; // Drawing model.
897
898 //////////////////////////////////////////////////////////////////////////////
899 // Drawing model.
900 // POLYGON_INCL Fill is inclusive of bottom right (the default).
901 // POLYGON_EXCL Fill is exclusive of bottom right.
902 // This is provided to aid migration from other graphics models.
903 //////////////////////////////////////////////////////////////////////////////
904
905 LONG lHits = 0L; // Correlation/error indicator.
906 POINTL vPoint;
907 int i;
908 int nIsTRANSPARENT = 0;
909 LONG lBorderColor = 0L;
910 LONG lColor = 0L;
911
912 lBorderColor = m_pen.GetColour().GetPixel();
913 lColor = m_brush.GetColour().GetPixel();
914 if(m_brush.GetStyle() == wxTRANSPARENT)
915 nIsTRANSPARENT = 1;
916
917 vPlgn.ulPoints = n;
918 vPlgn.aPointl = (POINTL*) calloc( n + 1
919 ,sizeof(POINTL)
920 ); // well, new will call malloc
921
922 for(i = 0; i < n; i++)
923 {
924 vPlgn.aPointl[i].x = vPoints[i].x; // +xoffset;
925 vPlgn.aPointl[i].y = OS2Y(vPoints[i].y,0); // +yoffset;
926 }
927 flModel = POLYGON_BOUNDARY;
928 if(nFillStyle == wxWINDING_RULE)
929 flModel |= POLYGON_WINDING;
930 else
931 flModel |= POLYGON_ALTERNATE;
932
933 vPoint.x = vXoffset;
934 vPoint.y = OS2Y(vYoffset,0);
935
936 ::GpiSetColor(m_hPS, lBorderColor);
937 ::GpiMove(m_hPS, &vPoint);
938 lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel);
939 free(vPlgn.aPointl);
940 } // end of wxDC::DoDrawPolygon
941
942 void wxDC::DoDrawLines(
943 int n
944 , wxPoint vPoints[]
945 , wxCoord vXoffset
946 , wxCoord vYoffset
947 )
948 {
949 POINTL vPoint;
950
951 if (vXoffset != 0L || vXoffset != 0L)
952 {
953 int i;
954
955 vPoint.x = vPoints[0].x + vXoffset;
956 vPoint.y = OS2Y(vPoints[0].y + vYoffset,0);
957 ::GpiMove(m_hPS, &vPoint);
958
959 LONG lBorderColor = m_pen.GetColour().GetPixel();
960
961 ::GpiSetColor(m_hPS, lBorderColor);
962 for(i = 1; i < n; i++)
963 {
964 vPoint.x = vPoints[i].x + vXoffset;
965 vPoint.y = OS2Y(vPoints[i].y + vYoffset,0);
966 ::GpiLine(m_hPS, &vPoint);
967 }
968 }
969 else
970 {
971 int i;
972
973 CalcBoundingBox( vPoints[i].x
974 ,vPoints[i].y
975 );
976 vPoint.x = vPoints[0].x;
977 vPoint.y = OS2Y(vPoints[0].y,0);
978 ::GpiMove(m_hPS, &vPoint);
979
980 for (i = 0; i < n; i++)
981 {
982 CalcBoundingBox( vPoints[i].x
983 ,vPoints[i].y
984 );
985 vPoint.x = vPoints[i].x;
986 vPoint.y = OS2Y(vPoints[i].y,0);
987 ::GpiLine(m_hPS, &vPoint);
988 }
989 }
990 } // end of wxDC::DoDrawLines
991
992 void wxDC::DoDrawRectangle(
993 wxCoord vX
994 , wxCoord vY
995 , wxCoord vWidth
996 , wxCoord vHeight
997 )
998 {
999 POINTL vPoint[2];
1000 LONG lControl;
1001 LONG lColor;
1002 LONG lBorderColor;
1003 int nIsTRANSPARENT = 0;
1004
1005 //
1006 // Might be a memory DC with no Paint rect.
1007 //
1008 if (!(m_vRclPaint.yTop == 0 &&
1009 m_vRclPaint.yBottom == 0 &&
1010 m_vRclPaint.xRight == 0 &&
1011 m_vRclPaint.xLeft == 0))
1012 vY = OS2Y(vY,vHeight);
1013 else
1014 {
1015 if (m_vSelectedBitmap != wxNullBitmap)
1016 {
1017 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1018 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1019 vY = OS2Y(vY,vHeight);
1020 }
1021 }
1022
1023 wxCoord vX2 = vX + vWidth;
1024 wxCoord vY2 = vY + vHeight;
1025
1026 vPoint[0].x = vX;
1027 vPoint[0].y = vY;
1028 vPoint[1].x = vX + vWidth - 1;
1029 vPoint[1].y = vY + vHeight - 1;
1030 ::GpiMove(m_hPS, &vPoint[0]);
1031 lColor = m_brush.GetColour().GetPixel();
1032 lBorderColor = m_pen.GetColour().GetPixel();
1033 if (m_brush.GetStyle() == wxTRANSPARENT)
1034 nIsTRANSPARENT = 1;
1035 if(lColor == lBorderColor || nIsTRANSPARENT)
1036 {
1037 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1038 if(m_brush.GetStyle() == wxTRANSPARENT)
1039 lControl = DRO_OUTLINE;
1040
1041 ::GpiSetColor(m_hPS, lColor);
1042 ::GpiBox( m_hPS // handle to a presentation space
1043 ,lControl // draw the box outline ? or ?
1044 ,&vPoint[1] // address of the corner
1045 ,0L // horizontal corner radius
1046 ,0L // vertical corner radius
1047 );
1048 }
1049 else
1050 {
1051 lControl = DRO_OUTLINE;
1052 ::GpiSetColor( m_hPS
1053 ,lBorderColor
1054 );
1055 ::GpiBox( m_hPS
1056 ,lControl
1057 ,&vPoint[1]
1058 ,0L
1059 ,0L
1060 );
1061 lControl = DRO_FILL;
1062 ::GpiSetColor( m_hPS
1063 ,lColor
1064 );
1065 vPoint[0].x = vX + 1;
1066 vPoint[0].y = vY + 1;
1067 vPoint[1].x = vX + vWidth - 2;
1068 vPoint[1].y = vY + vHeight - 2;
1069 ::GpiMove(m_hPS, &vPoint[0]);
1070 ::GpiBox( m_hPS
1071 ,lControl
1072 ,&vPoint[1]
1073 ,0L
1074 ,0L
1075 );
1076 }
1077 CalcBoundingBox(vX, vY);
1078 CalcBoundingBox(vX2, vY2);
1079 } // end of wxDC::DoDrawRectangle
1080
1081 void wxDC::DoDrawRoundedRectangle(
1082 wxCoord vX
1083 , wxCoord vY
1084 , wxCoord vWidth
1085 , wxCoord vHeight
1086 , double dRadius
1087 )
1088 {
1089 POINTL vPoint[2];
1090 LONG lControl;
1091 LONG lColor;
1092 LONG lBorderColor;
1093 int nIsTRANSPARENT = 0;
1094
1095 //
1096 // Might be a memory DC with no Paint rect.
1097 //
1098 if (!(m_vRclPaint.yTop == 0 &&
1099 m_vRclPaint.yBottom == 0 &&
1100 m_vRclPaint.xRight == 0 &&
1101 m_vRclPaint.xLeft == 0))
1102 vY = OS2Y(vY,vHeight);
1103 else
1104 {
1105 if (m_vSelectedBitmap != wxNullBitmap)
1106 {
1107 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1108 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1109 vY = OS2Y(vY,vHeight);
1110 }
1111 }
1112
1113 wxCoord vX2 = (vX + vWidth);
1114 wxCoord vY2 = (vY + vHeight);
1115
1116 vPoint[0].x = vX;
1117 vPoint[0].y = vY;
1118 vPoint[1].x = vX + vWidth - 1;
1119 vPoint[1].y = vY + vHeight - 1;
1120 ::GpiMove(m_hPS, &vPoint[0]);
1121
1122 lColor = m_brush.GetColour().GetPixel();
1123 lBorderColor = m_pen.GetColour().GetPixel();
1124 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1125 if (m_brush.GetStyle() == wxTRANSPARENT)
1126 nIsTRANSPARENT = 1;
1127 if(lColor == lBorderColor || nIsTRANSPARENT)
1128 {
1129 lControl = DRO_OUTLINEFILL; //DRO_FILL;
1130 if(m_brush.GetStyle() == wxTRANSPARENT)
1131 lControl = DRO_OUTLINE;
1132
1133 ::GpiSetColor(m_hPS, lColor);
1134 ::GpiBox( m_hPS // handle to a presentation space
1135 ,lControl // draw the box outline ? or ?
1136 ,&vPoint[1] // address of the corner
1137 ,(LONG)dRadius // horizontal corner radius
1138 ,(LONG)dRadius // vertical corner radius
1139 );
1140 }
1141 else
1142 {
1143 lControl = DRO_OUTLINE;
1144 ::GpiSetColor( m_hPS
1145 ,lBorderColor
1146 );
1147 ::GpiBox( m_hPS
1148 ,lControl
1149 ,&vPoint[1]
1150 ,0L
1151 ,0L
1152 );
1153 lControl = DRO_FILL;
1154 ::GpiSetColor( m_hPS
1155 ,lColor
1156 );
1157 vPoint[0].x = vX + 1;
1158 vPoint[0].y = vY + 1;
1159 vPoint[1].x = vX + vWidth - 2;
1160 vPoint[1].y = vY + vHeight - 2;
1161 ::GpiMove(m_hPS, &vPoint[0]);
1162 ::GpiBox( m_hPS
1163 ,lControl
1164 ,&vPoint[1]
1165 ,0L
1166 ,0L
1167 );
1168 }
1169
1170 CalcBoundingBox(vX, vY);
1171 CalcBoundingBox(vX2, vY2);
1172 } // end of wxDC::DoDrawRoundedRectangle
1173
1174 // Draw Ellipse within box (x,y) - (x+width, y+height)
1175 void wxDC::DoDrawEllipse(
1176 wxCoord vX
1177 , wxCoord vY
1178 , wxCoord vWidth
1179 , wxCoord vHeight
1180 )
1181 {
1182 POINTL vPtlPos; // Structure for current position
1183 FIXED vFxMult; // Multiplier for ellipse
1184 ARCPARAMS vArcp; // Structure for arc parameters
1185
1186 vY = OS2Y(vY,vHeight);
1187
1188 vArcp.lR = 0;
1189 vArcp.lQ = vHeight/2;
1190 vArcp.lP = vWidth/2;
1191 vArcp.lS = 0;
1192 ::GpiSetArcParams( m_hPS
1193 ,&vArcp
1194 ); // Sets parameters to default
1195 vPtlPos.x = vX + vWidth/2; // Loads x-coordinate
1196 vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
1197 ::GpiMove( m_hPS
1198 ,&vPtlPos
1199 ); // Sets current position
1200 vFxMult = MAKEFIXED(1, 0); /* Sets multiplier */
1201
1202 //
1203 // DRO_FILL, DRO_OTLINEFILL - where to get
1204 //
1205 ::GpiFullArc( m_hPS
1206 ,DRO_OUTLINE
1207 ,vFxMult
1208 ); // Draws full arc with center at current position
1209
1210 wxCoord vX2 = (vX + vWidth);
1211 wxCoord vY2 = (vY + vHeight);
1212
1213 CalcBoundingBox(vX, vY);
1214 CalcBoundingBox(vX2, vY2);
1215 } // end of wxDC::DoDrawEllipse
1216
1217 void wxDC::DoDrawEllipticArc(
1218 wxCoord vX
1219 , wxCoord vY
1220 , wxCoord vWidth
1221 , wxCoord vHeight
1222 , double dSa
1223 , double dEa
1224 )
1225 {
1226 POINTL vPtlPos; // Structure for current position
1227 FIXED vFxMult; // Multiplier for ellipse
1228 ARCPARAMS vArcp; // Structure for arc parameters
1229 FIXED vFSa;
1230 FIXED vFSweepa; // Start angle, sweep angle
1231 double dIntPart;
1232 double dFractPart;
1233 double dRadius;
1234
1235 vY = OS2Y(vY,vHeight);
1236
1237 dFractPart = modf(dSa,&dIntPart);
1238 vFSa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
1239 dFractPart = modf(dEa - dSa, &dIntPart);
1240 vFSweepa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) );
1241
1242 //
1243 // Ellipse main axis (r,q), (p,s) with center at (0,0)
1244 //
1245 vArcp.lR = 0;
1246 vArcp.lQ = vHeight/2;
1247 vArcp.lP = vWidth/2;
1248 vArcp.lS = 0;
1249 ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default
1250 vPtlPos.x = vX + vWidth/2 * (1. + cos(DegToRad(dSa))); // Loads x-coordinate
1251 vPtlPos.y = vY + vHeight/2 * (1. + sin(DegToRad(dSa))); // Loads y-coordinate
1252 ::GpiMove(m_hPS, &vPtlPos); // Sets current position
1253
1254 //
1255 // May be not to the center ?
1256 //
1257 vPtlPos.x = vX + vWidth/2 ; // Loads x-coordinate
1258 vPtlPos.y = vY + vHeight/2; // Loads y-coordinate
1259 vFxMult = MAKEFIXED(1, 0); // Sets multiplier
1260
1261 //
1262 // DRO_FILL, DRO_OTLINEFILL - where to get
1263 //
1264 ::GpiPartialArc( m_hPS
1265 ,&vPtlPos
1266 ,vFxMult
1267 ,vFSa
1268 ,vFSweepa
1269 );
1270 wxCoord vX2 = (vX + vWidth);
1271 wxCoord vY2 = (vY + vHeight);
1272
1273 CalcBoundingBox(vX, vY);
1274 CalcBoundingBox(vX2, vY2);
1275 } // end of wxDC::DoDrawEllipticArc
1276
1277 void wxDC::DoDrawIcon(
1278 const wxIcon& rIcon
1279 , wxCoord vX
1280 , wxCoord vY
1281 )
1282 {
1283 //
1284 // Need to copy back into a bitmap. ::WinDrawPointer uses device coords
1285 // and I don't feel like figuring those out for scrollable windows so
1286 // just convert to a bitmap then let the DoDrawBitmap routing display it
1287 //
1288 if (rIcon.IsXpm())
1289 {
1290 DoDrawBitmap(rIcon.GetXpmSrc(), vX, vY, TRUE);
1291 }
1292 else
1293 {
1294 wxBitmap vBitmap(rIcon);
1295
1296 DoDrawBitmap(vBitmap, vX, vY, FALSE);
1297 }
1298 CalcBoundingBox(vX, vY);
1299 CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight());
1300 } // end of wxDC::DoDrawIcon
1301
1302 void wxDC::DoDrawBitmap(
1303 const wxBitmap& rBmp
1304 , wxCoord vX
1305 , wxCoord vY
1306 , bool bUseMask
1307 )
1308 {
1309 if (!IsKindOf(CLASSINFO(wxPrinterDC)))
1310 {
1311 HBITMAP hBitmap = (HBITMAP)rBmp.GetHBITMAP();
1312 HBITMAP hBitmapOld;
1313 POINTL vPoint[4];
1314
1315 vY = OS2Y(vY,rBmp.GetHeight());
1316
1317 //
1318 // Flip the picture as OS/2 is upside-down
1319 //
1320 if (rBmp.Flip())
1321 {
1322 vPoint[0].x = vX;
1323 vPoint[0].y = vY + rBmp.GetHeight();
1324 vPoint[1].x = vX + rBmp.GetWidth();
1325 vPoint[1].y = vY;
1326 vPoint[2].x = 0;
1327 vPoint[2].y = 0;
1328 vPoint[3].x = rBmp.GetWidth();
1329 vPoint[3].y = rBmp.GetHeight();
1330 }
1331 else
1332 {
1333 vPoint[0].x = vX;
1334 vPoint[0].y = vY;
1335 vPoint[1].x = vX + rBmp.GetWidth();
1336 vPoint[1].y = vY + rBmp.GetHeight();
1337 vPoint[2].x = 0;
1338 vPoint[2].y = 0;
1339 vPoint[3].x = rBmp.GetWidth();
1340 vPoint[3].y = rBmp.GetHeight();
1341 }
1342 if (bUseMask)
1343 {
1344 wxMask* pMask = rBmp.GetMask();
1345
1346 if (pMask)
1347 {
1348 //
1349 // Need to imitate ::MaskBlt in windows.
1350 // 1) Extract the bits from from the bitmap.
1351 // 2) Extract the bits from the mask
1352 // 3) Using the mask bits do the following:
1353 // A) If the mask byte is 00 leave the bitmap byte alone
1354 // B) If the mask byte is FF copy the screen color into
1355 // bitmap byte
1356 // 4) Create a new bitmap and set its bits to the above result
1357 // 5) Blit this to the screen PS
1358 //
1359 HBITMAP hMask = (HBITMAP)pMask->GetMaskBitmap();
1360 HBITMAP hOldMask = NULLHANDLE;
1361 HBITMAP hOldBitmap = NULLHANDLE;
1362 HBITMAP hNewBitmap = NULLHANDLE;
1363 unsigned char* pucBits; // buffer that will contain the bitmap data
1364 unsigned char* pucBitsMask; // buffer that will contain the mask data
1365 unsigned char* pucData; // pointer to use to traverse bitmap data
1366 unsigned char* pucDataMask; // pointer to use to traverse mask data
1367 LONG lHits;
1368 ERRORID vError;
1369 wxString sError;
1370
1371 //
1372 // The usual Memory context creation stuff
1373 //
1374 DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1375 SIZEL vSize = {0, 0};
1376 HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1377 HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
1378
1379 //
1380 // The usual bitmap header stuff
1381 //
1382 BITMAPINFOHEADER2 vHeader;
1383 BITMAPINFO2 vInfo;
1384
1385 memset(&vHeader, '\0', 16);
1386 vHeader.cbFix = 16;
1387
1388 memset(&vInfo, '\0', 16);
1389 vInfo.cbFix = 16;
1390 vInfo.cx = (ULONG)rBmp.GetWidth();
1391 vInfo.cy = (ULONG)rBmp.GetHeight();
1392 vInfo.cPlanes = 1;
1393 vInfo.cBitCount = 24; // Set to desired count going in
1394
1395 //
1396 // Create the buffers for data....all wxBitmaps are 24 bit internally
1397 //
1398 int nBytesPerLine = rBmp.GetWidth() * 3;
1399 int nSizeDWORD = sizeof(DWORD);
1400 int nLineBoundary = nBytesPerLine % nSizeDWORD;
1401 int nPadding = 0;
1402 int i;
1403 int j;
1404 LONG lScans = 0L;
1405 LONG lColor = 0L;
1406
1407 //
1408 // Need to get a background color for mask blitting
1409 //
1410 if (IsKindOf(CLASSINFO(wxPaintDC)))
1411 {
1412 wxPaintDC* pPaintDC = wxDynamicCast(this, wxPaintDC);
1413
1414 lColor = pPaintDC->m_pCanvas->GetBackgroundColour().GetPixel();
1415 }
1416 else if (GetBrush() != wxNullBrush)
1417 lColor = GetBrush().GetColour().GetPixel();
1418 else
1419 lColor = m_textBackgroundColour.GetPixel();
1420
1421 //
1422 // Bitmap must be ina double-word alligned address so we may
1423 // have some padding to worry about
1424 //
1425 if (nLineBoundary > 0)
1426 {
1427 nPadding = nSizeDWORD - nLineBoundary;
1428 nBytesPerLine += nPadding;
1429 }
1430 pucBits = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
1431 pucBitsMask = (unsigned char *)malloc(nBytesPerLine * rBmp.GetHeight());
1432 memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
1433 memset(pucBitsMask, '\0', (nBytesPerLine * rBmp.GetHeight()));
1434
1435 //
1436 // Extract the bitmap and mask data
1437 //
1438 if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
1439 {
1440 vError = ::WinGetLastError(vHabmain);
1441 sError = wxPMErrorToStr(vError);
1442 }
1443 ::GpiQueryBitmapInfoHeader(hBitmap, &vHeader);
1444 vInfo.cBitCount = 24;
1445 if ((lScans = ::GpiQueryBitmapBits( hPS
1446 ,0L
1447 ,(LONG)rBmp.GetHeight()
1448 ,(PBYTE)pucBits
1449 ,&vInfo
1450 )) == GPI_ALTERROR)
1451 {
1452 vError = ::WinGetLastError(vHabmain);
1453 sError = wxPMErrorToStr(vError);
1454 }
1455 if ((hOldMask = ::GpiSetBitmap(hPS, hMask)) == HBM_ERROR)
1456 {
1457 vError = ::WinGetLastError(vHabmain);
1458 sError = wxPMErrorToStr(vError);
1459 }
1460 ::GpiQueryBitmapInfoHeader(hMask, &vHeader);
1461 vInfo.cBitCount = 24;
1462 if ((lScans = ::GpiQueryBitmapBits( hPS
1463 ,0L
1464 ,(LONG)rBmp.GetHeight()
1465 ,(PBYTE)pucBitsMask
1466 ,&vInfo
1467 )) == GPI_ALTERROR)
1468 {
1469 vError = ::WinGetLastError(vHabmain);
1470 sError = wxPMErrorToStr(vError);
1471 }
1472 if (( hMask = ::GpiSetBitmap(hPS, hOldMask)) == HBM_ERROR)
1473 {
1474 vError = ::WinGetLastError(vHabmain);
1475 sError = wxPMErrorToStr(vError);
1476 }
1477
1478 //
1479 // Now set the bytes(bits) according to the mask values
1480 // 3 bytes per pel...must handle one at a time
1481 //
1482 pucData = pucBits;
1483 pucDataMask = pucBitsMask;
1484
1485 //
1486 // 16 bit kludge really only kinda works. The mask gets applied
1487 // where needed but the original bitmap bits are dorked sometimes
1488 //
1489 bool bpp16 = (wxDisplayDepth() == 16);
1490
1491 for (i = 0; i < rBmp.GetHeight(); i++)
1492 {
1493 for (j = 0; j < rBmp.GetWidth(); j++)
1494 {
1495 // Byte 1
1496 if (bpp16 && *pucDataMask == 0xF8) // 16 bit display gobblygook
1497 pucData++;
1498 else if (*pucDataMask == 0xFF) // leave bitmap byte alone
1499 pucData++;
1500 else
1501 {
1502 *pucData = ((unsigned char)(lColor >> 16));
1503 pucData++;
1504 }
1505 // Byte 2
1506 if (bpp16 && *(pucDataMask + 1) == 0xFC) // 16 bit display gobblygook
1507 pucData++;
1508 else if (*(pucDataMask + 1) == 0xFF) // leave bitmap byte alone
1509 pucData++;
1510 else
1511 {
1512 *pucData = ((unsigned char)(lColor >> 8));
1513 pucData++;
1514 }
1515
1516 // Byte 3
1517 if (bpp16 && *(pucDataMask + 2) == 0xF8) // 16 bit display gobblygook
1518 pucData++;
1519 else if (*(pucDataMask + 2) == 0xFF) // leave bitmap byte alone
1520 pucData++;
1521 else
1522 {
1523 *pucData = ((unsigned char)lColor);
1524 pucData++;
1525 }
1526 pucDataMask += 3;
1527 }
1528 for (j = 0; j < nPadding; j++)
1529 {
1530 pucData++;
1531 pucDataMask++;
1532 }
1533 }
1534 //
1535 // Create a new bitmap
1536 //
1537 vHeader.cx = (ULONG)rBmp.GetWidth();
1538 vHeader.cy = (ULONG)rBmp.GetHeight();
1539 vHeader.cPlanes = 1L;
1540 vHeader.cBitCount = 24;
1541 if ((hNewBitmap = ::GpiCreateBitmap( hPS
1542 ,&vHeader
1543 ,CBM_INIT
1544 ,(PBYTE)pucBits
1545 ,&vInfo
1546 )) == GPI_ERROR)
1547 {
1548 vError = ::WinGetLastError(vHabmain);
1549 sError = wxPMErrorToStr(vError);
1550 }
1551
1552 //
1553 // Now blit it to the screen PS
1554 //
1555 if ((lHits = ::GpiWCBitBlt( (HPS)GetHPS()
1556 ,hNewBitmap
1557 ,4
1558 ,vPoint
1559 ,ROP_SRCCOPY
1560 ,BBO_IGNORE
1561 )) == GPI_ERROR)
1562 {
1563 vError = ::WinGetLastError(vHabmain);
1564 sError = wxPMErrorToStr(vError);
1565 }
1566
1567 //
1568 // Clean up
1569 //
1570 free(pucBits);
1571 free(pucBitsMask);
1572 ::GpiSetBitmap(hPS, NULLHANDLE);
1573 ::GpiDeleteBitmap(hNewBitmap);
1574 ::GpiDestroyPS(hPS);
1575 ::DevCloseDC(hDC);
1576 }
1577 }
1578 else
1579 {
1580 LONG lOldForeGround = ::GpiQueryColor((HPS)GetHPS());
1581 LONG lOldBackGround = ::GpiQueryBackColor((HPS)GetHPS());
1582
1583 if (m_textForegroundColour.Ok())
1584 {
1585 ::GpiSetColor( (HPS)GetHPS()
1586 ,m_textForegroundColour.GetPixel()
1587 );
1588 }
1589 if (m_textBackgroundColour.Ok())
1590 {
1591 ::GpiSetBackColor( (HPS)GetHPS()
1592 ,m_textBackgroundColour.GetPixel()
1593 );
1594 }
1595 //
1596 // Need to alter bits in a mono bitmap to match the new
1597 // background-foreground if it is different.
1598 //
1599 if (rBmp.IsMono() &&
1600 ((m_textForegroundColour.GetPixel() != lOldForeGround) ||
1601 (m_textBackgroundColour.GetPixel() != lOldBackGround)))
1602 {
1603 DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1604 SIZEL vSize = {0, 0};
1605 HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1606 HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
1607
1608 int nBytesPerLine = rBmp.GetWidth() * 3;
1609 int i, j;
1610 LONG lForeGround = m_textForegroundColour.GetPixel();
1611 LONG lBackGround = m_textBackgroundColour.GetPixel();
1612 LONG lScans;
1613 HBITMAP hOldBitmap = NULLHANDLE;
1614 BITMAPINFO2 vInfo;
1615 ERRORID vError;
1616 wxString sError;
1617
1618
1619 memset(&vInfo, '\0', 16);
1620 vInfo.cbFix = 16;
1621 vInfo.cx = (ULONG)rBmp.GetWidth();
1622 vInfo.cy = (ULONG)rBmp.GetHeight();
1623 vInfo.cPlanes = 1;
1624 vInfo.cBitCount = 24;
1625
1626 unsigned char* pucBits; // buffer that will contain the bitmap data
1627 unsigned char* pucData; // pointer to use to traverse bitmap data
1628
1629 pucBits = new unsigned char[nBytesPerLine * rBmp.GetHeight()];
1630 memset(pucBits, '\0', (nBytesPerLine * rBmp.GetHeight()));
1631
1632 if ((hOldBitmap = ::GpiSetBitmap(hPS, hBitmap)) == HBM_ERROR)
1633 {
1634 vError = ::WinGetLastError(vHabmain);
1635 sError = wxPMErrorToStr(vError);
1636 return;
1637 }
1638 if ((lScans = ::GpiQueryBitmapBits( hPS
1639 ,0L
1640 ,(LONG)rBmp.GetHeight()
1641 ,(PBYTE)pucBits
1642 ,&vInfo
1643 )) == GPI_ALTERROR)
1644 {
1645 vError = ::WinGetLastError(vHabmain);
1646 sError = wxPMErrorToStr(vError);
1647 return;
1648 }
1649 unsigned char cOldRedFore = (unsigned char)(lOldForeGround >> 16);
1650 unsigned char cOldGreenFore = (unsigned char)(lOldForeGround >> 8);
1651 unsigned char cOldBlueFore = (unsigned char)lOldForeGround;
1652
1653 unsigned char cOldRedBack = (unsigned char)(lOldBackGround >> 16);
1654 unsigned char cOldGreenBack = (unsigned char)(lOldBackGround >> 8);
1655 unsigned char cOldBlueBack = (unsigned char)lOldBackGround;
1656
1657 unsigned char cRedFore = (unsigned char)(lForeGround >> 16);
1658 unsigned char cGreenFore = (unsigned char)(lForeGround >> 8);
1659 unsigned char cBlueFore = (unsigned char)lForeGround;
1660
1661 unsigned char cRedBack = (unsigned char)(lBackGround >> 16);
1662 unsigned char cGreenBack = (unsigned char)(lBackGround >> 8);
1663 unsigned char cBlueBack = (unsigned char)lBackGround;
1664
1665 pucData = pucBits;
1666 for (i = 0; i < rBmp.GetHeight(); i++)
1667 {
1668 for (j = 0; j < rBmp.GetWidth(); j++)
1669 {
1670 unsigned char cBmpRed = *pucData;
1671 unsigned char cBmpGreen = *(pucData + 1);
1672 unsigned char cBmpBlue = *(pucData + 2);
1673
1674 if ((cBmpRed == cOldRedFore) &&
1675 (cBmpGreen == cOldGreenFore) &&
1676 (cBmpBlue == cOldBlueFore))
1677 {
1678 *pucData = cBlueFore;
1679 pucData++;
1680 *pucData = cGreenFore;
1681 pucData++;
1682 *pucData = cRedFore;
1683 pucData++;
1684 }
1685 else
1686 {
1687 *pucData = cBlueBack;
1688 pucData++;
1689 *pucData = cGreenBack;
1690 pucData++;
1691 *pucData = cRedBack;
1692 pucData++;
1693 }
1694 }
1695 }
1696 if ((lScans = ::GpiSetBitmapBits( hPS
1697 ,0L
1698 ,(LONG)rBmp.GetHeight()
1699 ,(PBYTE)pucBits
1700 ,&vInfo
1701 )) == GPI_ALTERROR)
1702 {
1703 vError = ::WinGetLastError(vHabmain);
1704 sError = wxPMErrorToStr(vError);
1705 return;
1706 }
1707 delete [] pucBits;
1708 ::GpiSetBitmap(hPS, NULLHANDLE);
1709 ::GpiDestroyPS(hPS);
1710 ::DevCloseDC(hDC);
1711 }
1712 ::GpiWCBitBlt( (HPS)GetHPS()
1713 ,hBitmap
1714 ,4
1715 ,vPoint
1716 ,ROP_SRCCOPY
1717 ,BBO_IGNORE
1718 );
1719 ::GpiSetBitmap((HPS)GetHPS(), hBitmapOld);
1720 ::GpiSetColor((HPS)GetHPS(), lOldForeGround);
1721 ::GpiSetBackColor((HPS)GetHPS(), lOldBackGround);
1722 }
1723 }
1724 } // end of wxDC::DoDrawBitmap
1725
1726 void wxDC::DoDrawText(
1727 const wxString& rsText
1728 , wxCoord vX
1729 , wxCoord vY
1730 )
1731 {
1732 wxCoord vWidth;
1733 wxCoord vHeight;
1734
1735 DrawAnyText( rsText
1736 ,vX
1737 ,vY
1738 );
1739
1740 CalcBoundingBox(vX, vY);
1741 GetTextExtent(rsText, &vWidth, &vHeight);
1742 CalcBoundingBox((vX + vWidth), (vY + vHeight));
1743 } // end of wxDC::DoDrawText
1744
1745 void wxDC::DrawAnyText(
1746 const wxString& rsText
1747 , wxCoord vX
1748 , wxCoord vY
1749 )
1750 {
1751 int nOldBackground = 0;
1752 POINTL vPtlStart;
1753 LONG lHits;
1754 wxCoord vTextX = 0;
1755 wxCoord vTextY = 0;
1756
1757 //
1758 // prepare for drawing the text
1759 //
1760
1761 //
1762 // Set text color attributes
1763 //
1764 if (m_textForegroundColour.Ok())
1765 {
1766 SetTextColor( m_hPS
1767 ,(int)m_textForegroundColour.GetPixel()
1768 );
1769 }
1770
1771 if (m_textBackgroundColour.Ok())
1772 {
1773 nOldBackground = SetTextBkColor( m_hPS
1774 ,(int)m_textBackgroundColour.GetPixel()
1775 );
1776 }
1777 SetBkMode( m_hPS
1778 ,m_backgroundMode
1779 );
1780 GetTextExtent( rsText
1781 ,&vTextX
1782 ,&vTextY
1783 );
1784 vPtlStart.x = vX;
1785 if (!(m_vRclPaint.yTop == 0 &&
1786 m_vRclPaint.yBottom == 0 &&
1787 m_vRclPaint.xRight == 0 &&
1788 m_vRclPaint.xLeft == 0))
1789 vPtlStart.y = OS2Y(vY,vTextY);
1790 else
1791 {
1792 if (m_vSelectedBitmap != wxNullBitmap)
1793 {
1794 m_vRclPaint.yTop = m_vSelectedBitmap.GetHeight();
1795 m_vRclPaint.xRight = m_vSelectedBitmap.GetWidth();
1796 vPtlStart.y = OS2Y(vY,vTextY);
1797 }
1798 else
1799 vPtlStart.y = vY;
1800 }
1801
1802 PCH pzStr = (PCH)rsText.c_str();
1803
1804 ::GpiMove(m_hPS, &vPtlStart);
1805 lHits = ::GpiCharString( m_hPS
1806 ,rsText.length()
1807 ,pzStr
1808 );
1809 if (lHits != GPI_OK)
1810 {
1811 wxLogLastError(wxT("TextOut"));
1812 }
1813
1814 //
1815 // Restore the old parameters (text foreground colour may be left because
1816 // it never is set to anything else, but background should remain
1817 // transparent even if we just drew an opaque string)
1818 //
1819 if (m_textBackgroundColour.Ok())
1820 SetTextBkColor( m_hPS
1821 ,nOldBackground
1822 );
1823 SetBkMode( m_hPS
1824 ,wxTRANSPARENT
1825 );
1826 }
1827
1828 void wxDC::DoDrawRotatedText(
1829 const wxString& rsText
1830 , wxCoord vX
1831 , wxCoord vY
1832 , double dAngle
1833 )
1834 {
1835 if (dAngle == 0.0)
1836 {
1837 DoDrawText( rsText
1838 ,vX
1839 ,vY
1840 );
1841 }
1842
1843 // TODO:
1844 /*
1845 if ( angle == 0.0 )
1846 {
1847 DoDrawText(text, x, y);
1848 }
1849 else
1850 {
1851 LOGFONT lf;
1852 wxFillLogFont(&lf, &m_font);
1853
1854 // GDI wants the angle in tenth of degree
1855 long angle10 = (long)(angle * 10);
1856 lf.lfEscapement = angle10;
1857 lf. lfOrientation = angle10;
1858
1859 HFONT hfont = ::CreateFontIndirect(&lf);
1860 if ( !hfont )
1861 {
1862 wxLogLastError("CreateFont");
1863 }
1864 else
1865 {
1866 HFONT hfontOld = ::SelectObject(GetHdc(), hfont);
1867
1868 DrawAnyText(text, x, y);
1869
1870 (void)::SelectObject(GetHdc(), hfontOld);
1871 }
1872
1873 // call the bounding box by adding all four vertices of the rectangle
1874 // containing the text to it (simpler and probably not slower than
1875 // determining which of them is really topmost/leftmost/...)
1876 wxCoord w, h;
1877 GetTextExtent(text, &w, &h);
1878
1879 double rad = DegToRad(angle);
1880
1881 // "upper left" and "upper right"
1882 CalcBoundingBox(x, y);
1883 CalcBoundingBox(x + w*cos(rad), y - h*sin(rad));
1884 CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
1885
1886 // "bottom left" and "bottom right"
1887 x += (wxCoord)(h*sin(rad));
1888 y += (wxCoord)(h*cos(rad));
1889 CalcBoundingBox(x, y);
1890 CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
1891 }
1892 */
1893 }
1894
1895 // ---------------------------------------------------------------------------
1896 // set GDI objects
1897 // ---------------------------------------------------------------------------
1898
1899 void wxDC::DoSelectPalette(
1900 bool bRealize
1901 )
1902 {
1903 //
1904 // Set the old object temporarily, in case the assignment deletes an object
1905 // that's not yet selected out.
1906 //
1907 if (m_hOldPalette)
1908 {
1909 m_hOldPalette = 0;
1910 }
1911
1912 if (m_palette.Ok())
1913 {
1914 HPALETTE hOldPal;
1915
1916 hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
1917 if (!m_hOldPalette)
1918 m_hOldPalette = (WXHPALETTE)hOldPal;
1919 }
1920 } // end of wxDC::DoSelectPalette
1921
1922 void wxDC::InitializePalette()
1923 {
1924 if (wxDisplayDepth() <= 8 )
1925 {
1926 //
1927 // Look for any window or parent that has a custom palette. If any has
1928 // one then we need to use it in drawing operations
1929 //
1930 wxWindow* pWin = m_pCanvas->GetAncestorWithCustomPalette();
1931
1932 m_hasCustomPalette = pWin && pWin->HasCustomPalette();
1933 if (m_hasCustomPalette)
1934 {
1935 m_palette = pWin->GetPalette();
1936
1937 //
1938 // turn on PM translation for this palette
1939 //
1940 DoSelectPalette();
1941 }
1942 }
1943 } // end of wxDC::InitializePalette
1944
1945 void wxDC::SetPalette(
1946 const wxPalette& rPalette
1947 )
1948 {
1949 if (m_hOldFont)
1950 {
1951 m_hOldFont = 0;
1952 }
1953 m_palette = rPalette;
1954 if (!rPalette.Ok())
1955 {
1956 if (m_hOldFont)
1957 {
1958 m_hOldFont = 0;
1959 }
1960 }
1961 HPALETTE hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE());
1962 if (!m_hOldPalette)
1963 m_hOldPalette = (WXHPALETTE)hOldPal;
1964 } // end of wxDC::SetPalette
1965
1966 void wxDC::SetFont(
1967 const wxFont& rFont
1968 )
1969 {
1970 //
1971 // Set the old object temporarily, in case the assignment deletes an object
1972 // that's not yet selected out.
1973 //
1974 if (m_hOldFont)
1975 {
1976 m_hOldFont = 0;
1977 }
1978 m_font = rFont;
1979 if (!rFont.Ok())
1980 {
1981 m_hOldFont = 0;
1982 }
1983
1984 m_font.SetPS(m_hPS); // this will realize the font
1985
1986 if (m_font.Ok())
1987 {
1988 HFONT hFont = m_font.GetResourceHandle();
1989 if (hFont == (HFONT) NULL)
1990 {
1991 wxLogDebug(wxT("::SelectObject failed in wxDC::SetFont."));
1992 }
1993 if (!m_hOldFont)
1994 m_hOldFont = (WXHFONT) hFont;
1995 }
1996 } // end of wxDC::SetFont
1997
1998 void wxDC::SetPen(
1999 const wxPen& rPen
2000 )
2001 {
2002 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2003
2004 if (m_pen == rPen)
2005 return;
2006 m_pen = rPen;
2007 if (!m_pen.Ok())
2008 return;
2009
2010 if (m_hOldPen)
2011 m_hOldPen = 0L;
2012 m_pen = rPen;
2013
2014 if (!m_pen.Ok())
2015 {
2016 if (m_hOldPen)
2017 {
2018 m_pen.SetPS((HPS)m_hOldPen);
2019 }
2020 m_hOldPen = 0L;
2021 }
2022
2023 if (m_pen.Ok())
2024 {
2025 if (m_pen.GetResourceHandle())
2026 {
2027 m_pen.SetPS(m_hPS);
2028 if (!m_hOldPen)
2029 m_hOldPen = m_pen.GetPS();
2030 }
2031 ::GpiSetColor(m_hPS, m_pen.GetColour().GetPixel());
2032 }
2033 }
2034
2035 void wxDC::SetBrush(
2036 const wxBrush& rBrush
2037 )
2038 {
2039 wxCHECK_RET( Ok(), wxT("invalid window dc") );
2040
2041 if (m_hOldBrush)
2042 m_hOldBrush = 0L;
2043 m_brush = rBrush;
2044 if (!m_brush.Ok())
2045 if (m_brush == rBrush)
2046 return;
2047 if (!m_brush.Ok())
2048 if (m_hOldBrush)
2049 m_hOldBrush = 0L;
2050
2051 if (!m_brush.Ok())
2052 {
2053 if (m_hOldBrush)
2054 {
2055 m_brush.SetPS((HPS)m_hOldBrush);
2056 }
2057 m_hOldBrush = 0L;
2058 }
2059
2060 if (m_brush.Ok())
2061 {
2062 if (m_brush.GetResourceHandle())
2063 {
2064 m_brush.SetPS(m_hPS);
2065 if (!m_hOldBrush)
2066 m_hOldBrush = (WXHWND)m_brush.GetPS();
2067 }
2068 }
2069 } // end of wxDC::SetBrush
2070
2071 void wxDC::SetBackground(
2072 const wxBrush& rBrush
2073 )
2074 {
2075 m_backgroundBrush = rBrush;
2076 if (!m_backgroundBrush.Ok())
2077 return;
2078 if (m_pCanvas)
2079 {
2080 bool bCustomColours = TRUE;
2081
2082 //
2083 // If we haven't specified wxUSER_COLOURS, don't allow the panel/dialog box to
2084 // change background colours from the control-panel specified colours.
2085 //
2086 if (m_pCanvas->IsKindOf(CLASSINFO(wxWindow)) &&
2087 ((m_pCanvas->GetWindowStyleFlag() & wxUSER_COLOURS) != wxUSER_COLOURS))
2088 bCustomColours = FALSE;
2089 if (bCustomColours)
2090 {
2091 if (m_backgroundBrush.GetStyle()==wxTRANSPARENT)
2092 {
2093 m_pCanvas->SetTransparent(TRUE);
2094 }
2095 else
2096 {
2097 //
2098 // Setting the background brush of a DC
2099 // doesn't affect the window background colour. However,
2100 // I'm leaving in the transparency setting because it's needed by
2101 // various controls (e.g. wxStaticText) to determine whether to draw
2102 // transparently or not. TODO: maybe this should be a new function
2103 // wxWindow::SetTransparency(). Should that apply to the child itself, or the
2104 // parent?
2105 // m_canvas->SetBackgroundColour(m_backgroundBrush.GetColour());
2106 //
2107 m_pCanvas->SetTransparent(FALSE);
2108 }
2109 }
2110 }
2111 COLORREF vNewColor = m_backgroundBrush.GetColour().GetPixel();
2112 (void)::GpiSetBackColor((HPS)m_hPS, (LONG)vNewColor);
2113 } // end of wxDC::SetBackground
2114
2115 void wxDC::SetBackgroundMode(
2116 int nMode
2117 )
2118 {
2119 m_backgroundMode = nMode;
2120 } // end of wxDC::SetBackgroundMode
2121
2122 void wxDC::SetLogicalFunction(
2123 int nFunction
2124 )
2125 {
2126 m_logicalFunction = nFunction;
2127 SetRop((WXHDC)m_hDC);
2128 } // wxDC::SetLogicalFunction
2129
2130 void wxDC::SetRop(
2131 WXHDC hDC
2132 )
2133 {
2134 if (!hDC || m_logicalFunction < 0)
2135 return;
2136
2137 LONG lCRop;
2138 switch (m_logicalFunction)
2139 {
2140 case wxXOR:
2141 lCRop = FM_XOR;
2142 break;
2143
2144 case wxINVERT:
2145 lCRop = FM_INVERT;
2146 break;
2147
2148 case wxOR_REVERSE:
2149 lCRop = FM_MERGESRCNOT;
2150 break;
2151
2152 case wxAND_REVERSE:
2153 lCRop = FM_NOTMASKSRC;
2154 break;
2155
2156 case wxCLEAR:
2157 lCRop = FM_ONE;
2158 break;
2159
2160 case wxSET:
2161 lCRop = FM_ZERO;
2162 break;
2163
2164 case wxSRC_INVERT:
2165 lCRop = FM_MERGENOTSRC;
2166 break;
2167
2168 case wxOR_INVERT:
2169 lCRop = FM_MERGESRCNOT;
2170 break;
2171
2172 case wxAND:
2173 lCRop = FM_AND;
2174 break;
2175
2176 case wxOR:
2177 lCRop = FM_OR;
2178 break;
2179
2180 case wxAND_INVERT:
2181 lCRop = FM_SUBTRACT;
2182 break;
2183
2184 case wxEQUIV:
2185 case wxNAND:
2186 case wxCOPY:
2187 default:
2188 lCRop = FM_OVERPAINT;
2189 break;
2190 }
2191 ::GpiSetMix((HPS)hDC, lCRop);
2192 } // end of wxDC::SetRop
2193
2194 bool wxDC::StartDoc(
2195 const wxString& rsMessage
2196 )
2197 {
2198 // We might be previewing, so return TRUE to let it continue.
2199 return TRUE;
2200 } // end of wxDC::StartDoc
2201
2202 void wxDC::EndDoc()
2203 {
2204 } // end of wxDC::EndDoc
2205
2206 void wxDC::StartPage()
2207 {
2208 } // end of wxDC::StartPage
2209
2210 void wxDC::EndPage()
2211 {
2212 } // end of wxDC::EndPage
2213
2214 // ---------------------------------------------------------------------------
2215 // text metrics
2216 // ---------------------------------------------------------------------------
2217
2218 wxCoord wxDC::GetCharHeight() const
2219 {
2220 FONTMETRICS vFM; // metrics structure
2221
2222 ::GpiQueryFontMetrics( m_hPS
2223 ,sizeof(FONTMETRICS)
2224 ,&vFM
2225 );
2226 return YDEV2LOGREL(vFM.lXHeight);
2227 }
2228
2229 wxCoord wxDC::GetCharWidth() const
2230 {
2231 FONTMETRICS vFM; // metrics structure
2232
2233 ::GpiQueryFontMetrics( m_hPS
2234 ,sizeof(FONTMETRICS)
2235 ,&vFM
2236 );
2237 return XDEV2LOGREL(vFM.lAveCharWidth);
2238 }
2239
2240 void wxDC::DoGetTextExtent(
2241 const wxString& rsString
2242 , wxCoord* pvX
2243 , wxCoord* pvY
2244 , wxCoord* pvDescent
2245 , wxCoord* pvExternalLeading
2246 , wxFont* pTheFont
2247 ) const
2248 {
2249 POINTL avPoint[TXTBOX_COUNT];
2250 POINTL vPtMin;
2251 POINTL vPtMax;
2252 int i;
2253 int l;
2254 FONTMETRICS vFM; // metrics structure
2255 BOOL bRc;
2256 char* pStr;
2257 ERRORID vErrorCode; // last error id code
2258 wxFont* pFontToUse = (wxFont*)pTheFont;
2259
2260 char zMsg[128]; // DEBUG
2261 wxString sError;
2262
2263 if (!pFontToUse)
2264 pFontToUse = (wxFont*)&m_font;
2265 l = rsString.length();
2266 pStr = (PCH) rsString.c_str();
2267
2268 //
2269 // In world coordinates.
2270 //
2271 bRc = ::GpiQueryTextBox( m_hPS
2272 ,l
2273 ,pStr
2274 ,TXTBOX_COUNT // return maximum information
2275 ,avPoint // array of coordinates points
2276 );
2277 if(!bRc)
2278 {
2279 vErrorCode = ::WinGetLastError(wxGetInstance());
2280 sError = wxPMErrorToStr(vErrorCode);
2281 // DEBUG
2282 sprintf(zMsg, "GpiQueryTextBox for %s: failed with Error: %x - %s", pStr, vErrorCode, sError.c_str());
2283 (void)wxMessageBox( "wxWindows Menu sample"
2284 ,zMsg
2285 ,wxICON_INFORMATION
2286 );
2287 }
2288
2289 vPtMin.x = avPoint[0].x;
2290 vPtMax.x = avPoint[0].x;
2291 vPtMin.y = avPoint[0].y;
2292 vPtMax.y = avPoint[0].y;
2293 for (i = 1; i < 4; i++)
2294 {
2295 if(vPtMin.x > avPoint[i].x) vPtMin.x = avPoint[i].x;
2296 if(vPtMin.y > avPoint[i].y) vPtMin.y = avPoint[i].y;
2297 if(vPtMax.x < avPoint[i].x) vPtMax.x = avPoint[i].x;
2298 if(vPtMax.y < avPoint[i].y) vPtMax.y = avPoint[i].y;
2299 }
2300 ::GpiQueryFontMetrics( m_hPS
2301 ,sizeof(FONTMETRICS)
2302 ,&vFM
2303 );
2304
2305 if (pvX)
2306 *pvX = (wxCoord)(vPtMax.x - vPtMin.x + 1);
2307 if (pvY)
2308 *pvY = (wxCoord)(vPtMax.y - vPtMin.y + 1);
2309 if (pvDescent)
2310 *pvDescent = vFM.lMaxDescender;
2311 if (pvExternalLeading)
2312 *pvExternalLeading = vFM.lExternalLeading;
2313 }
2314
2315 void wxDC::SetMapMode(
2316 int nMode
2317 )
2318 {
2319 int nPixelWidth = 0;
2320 int nPixelHeight = 0;
2321 int nMmWidth = 1;
2322 int nMmHeight = 1;
2323 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2324
2325 m_mappingMode = nMode;
2326
2327 if(::DevQueryCaps( m_hDC
2328 ,CAPS_FAMILY
2329 ,CAPS_VERTICAL_RESOLUTION
2330 ,lArray
2331 ))
2332 {
2333 LONG lHorzRes;
2334 LONG lVertRes;
2335
2336 nPixelWidth = lArray[CAPS_WIDTH];
2337 nPixelHeight = lArray[CAPS_HEIGHT];
2338 lHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2339 lVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2340 nMmWidth = (lHorzRes/1000) * nPixelWidth;
2341 nMmWidth = (lVertRes/1000) * nPixelHeight;
2342 }
2343 if ((nPixelWidth == 0) || (nPixelHeight == 0) || (nMmWidth == 0) || (nMmHeight == 0))
2344 {
2345 return;
2346 }
2347
2348 double dMm2pixelsX = nPixelWidth/nMmWidth;
2349 double dMm2pixelsY = nPixelHeight/nMmHeight;
2350
2351 switch (nMode)
2352 {
2353 case wxMM_TWIPS:
2354 m_logicalScaleX = (twips2mm * dMm2pixelsX);
2355 m_logicalScaleY = (twips2mm * dMm2pixelsY);
2356 break;
2357
2358 case wxMM_POINTS:
2359 m_logicalScaleX = (pt2mm * dMm2pixelsX);
2360 m_logicalScaleY = (pt2mm * dMm2pixelsY);
2361 break;
2362
2363 case wxMM_METRIC:
2364 m_logicalScaleX = dMm2pixelsX;
2365 m_logicalScaleY = dMm2pixelsY;
2366 break;
2367
2368 case wxMM_LOMETRIC:
2369 m_logicalScaleX = (dMm2pixelsX/10.0);
2370 m_logicalScaleY = (dMm2pixelsY/10.0);
2371 break;
2372
2373 case wxMM_TEXT:
2374 default:
2375 m_logicalScaleX = 1.0;
2376 m_logicalScaleY = 1.0;
2377 break;
2378 }
2379 SIZEL vSize;
2380 ULONG ulOptions;
2381
2382 ulOptions = ::GpiQueryPS(m_hPS, &vSize);
2383 if (!ulOptions & PU_ARBITRARY)
2384 {
2385 ulOptions = PU_ARBITRARY | GPIF_DEFAULT;
2386 ::GpiSetPS(m_hPS, &vSize, ulOptions);
2387 }
2388 m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT);
2389 m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT);
2390 // ????
2391 }; // end of wxDC::SetMapMode
2392
2393 void wxDC::SetUserScale(
2394 double dX
2395 , double dY
2396 )
2397 {
2398 m_userScaleX = dX;
2399 m_userScaleY = dY;
2400
2401 SetMapMode(m_mappingMode);
2402 } // end of wxDC::SetUserScale
2403
2404 void wxDC::SetAxisOrientation(
2405 bool bXLeftRight
2406 , bool bYBottomUp
2407 )
2408 {
2409 m_signX = bXLeftRight ? 1 : -1;
2410 m_signY = bYBottomUp ? -1 : 1;
2411
2412 SetMapMode(m_mappingMode);
2413 } // end of wxDC::SetAxisOrientation
2414
2415 void wxDC::SetSystemScale(
2416 double dX
2417 , double dY
2418 )
2419 {
2420 m_scaleX = dX;
2421 m_scaleY = dY;
2422
2423 SetMapMode(m_mappingMode);
2424 } // end of wxDC::SetSystemScale
2425
2426 void wxDC::SetLogicalOrigin(
2427 wxCoord vX
2428 , wxCoord vY
2429 )
2430 {
2431 RECTL vRect;
2432
2433 ::GpiQueryPageViewport( m_hPS
2434 ,&vRect
2435 );
2436 vRect.xRight -= vX;
2437 vRect.yTop += vY;
2438 vRect.xLeft = vX;
2439 vRect.yBottom = vY;
2440 ::GpiSetPageViewport( m_hPS
2441 ,&vRect
2442 );
2443 }; // end of wxDC::SetLogicalOrigin
2444
2445 void wxDC::SetDeviceOrigin(
2446 wxCoord vX
2447 , wxCoord vY
2448 )
2449 {
2450 RECTL vRect;
2451
2452 m_deviceOriginX = vX;
2453 m_deviceOriginY = vY;
2454 ::GpiQueryPageViewport( m_hPS
2455 ,&vRect
2456 );
2457 vRect.xLeft += vX;
2458 vRect.xRight += vX;
2459 vRect.yBottom -= vY;
2460 vRect.yTop -= vY;
2461 ::GpiSetPageViewport( m_hPS
2462 ,&vRect
2463 );
2464 }; // end of wxDC::SetDeviceOrigin
2465
2466 // ---------------------------------------------------------------------------
2467 // coordinates transformations
2468 // ---------------------------------------------------------------------------
2469
2470 wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
2471 {
2472 return (wxCoord) (((x) - m_deviceOriginX)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX) - m_logicalOriginX);
2473 }
2474
2475 wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
2476 {
2477 // axis orientation is not taken into account for conversion of a distance
2478 return (wxCoord) ((x)/(m_logicalScaleX*m_userScaleX*m_scaleX));
2479 }
2480
2481 wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
2482 {
2483 return (wxCoord) (((y) - m_deviceOriginY)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY) - m_logicalOriginY);
2484 }
2485
2486 wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
2487 {
2488 // axis orientation is not taken into account for conversion of a distance
2489 return (wxCoord) ((y)/(m_logicalScaleY*m_userScaleY*m_scaleY));
2490 }
2491
2492 wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
2493 {
2494 return (wxCoord) ((x - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX);
2495 }
2496
2497 wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
2498 {
2499 // axis orientation is not taken into account for conversion of a distance
2500 return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_scaleX);
2501 }
2502
2503 wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
2504 {
2505 return (wxCoord) ((y - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY);
2506 }
2507
2508 wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
2509 {
2510 // axis orientation is not taken into account for conversion of a distance
2511 return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY);
2512 }
2513
2514 // ---------------------------------------------------------------------------
2515 // bit blit
2516 // ---------------------------------------------------------------------------
2517
2518 bool wxDC::DoBlit(
2519 wxCoord vXdest
2520 , wxCoord vYdest
2521 , wxCoord vWidth
2522 , wxCoord vHeight
2523 , wxDC* pSource
2524 , wxCoord vXsrc
2525 , wxCoord vYsrc
2526 , int nRop
2527 , bool bUseMask
2528 , wxCoord vXsrcMask
2529 , wxCoord vYsrcMask
2530 )
2531 {
2532 wxMask* pMask = NULL;
2533 CHARBUNDLE vCbnd;
2534 COLORREF vOldTextColor;
2535 COLORREF vOldBackground = ::GpiQueryBackColor(m_hPS);
2536
2537 if (bUseMask)
2538 {
2539 const wxBitmap& rBmp = pSource->m_vSelectedBitmap;
2540
2541 pMask = rBmp.GetMask();
2542 if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap()))
2543 {
2544 bUseMask = FALSE;
2545 }
2546 }
2547
2548 ::GpiQueryAttrs( m_hPS
2549 ,PRIM_CHAR
2550 ,CBB_COLOR
2551 ,&vCbnd
2552 );
2553 vOldTextColor = (COLORREF)vCbnd.lColor;
2554
2555 if (m_textForegroundColour.Ok())
2556 {
2557 vCbnd.lColor = (LONG)m_textForegroundColour.GetPixel();
2558 ::GpiSetAttrs( m_hPS // presentation-space handle
2559 ,PRIM_CHAR // Char primitive.
2560 ,CBB_COLOR // sets color.
2561 ,0
2562 ,&vCbnd // buffer for attributes.
2563 );
2564 }
2565 if (m_textBackgroundColour.Ok())
2566 {
2567 ::GpiSetBackColor(m_hPS, (LONG)m_textBackgroundColour.GetPixel());
2568 }
2569
2570 LONG lRop = ROP_SRCCOPY;
2571
2572 switch (nRop)
2573 {
2574 case wxXOR: lRop = ROP_SRCINVERT; break;
2575 case wxINVERT: lRop = ROP_DSTINVERT; break;
2576 case wxOR_REVERSE: lRop = 0x00DD0228; break;
2577 case wxAND_REVERSE: lRop = ROP_SRCERASE; break;
2578 case wxCLEAR: lRop = ROP_ZERO; break;
2579 case wxSET: lRop = ROP_ONE; break;
2580 case wxOR_INVERT: lRop = ROP_MERGEPAINT; break;
2581 case wxAND: lRop = ROP_SRCAND; break;
2582 case wxOR: lRop = ROP_SRCPAINT; break;
2583 case wxEQUIV: lRop = 0x00990066; break;
2584 case wxNAND: lRop = 0x007700E6; break;
2585 case wxAND_INVERT: lRop = 0x00220326; break;
2586 case wxCOPY: lRop = ROP_SRCCOPY; break;
2587 case wxNO_OP: lRop = ROP_NOTSRCERASE; break;
2588 case wxSRC_INVERT: lRop = ROP_SRCINVERT; break;
2589 case wxNOR: lRop = ROP_NOTSRCCOPY; break;
2590 default:
2591 wxFAIL_MSG( wxT("unsupported logical function") );
2592 return FALSE;
2593 }
2594
2595 bool bSuccess;
2596
2597 if (bUseMask)
2598 {
2599 //
2600 // Blit bitmap with mask
2601 //
2602
2603 //
2604 // Create a temp buffer bitmap and DCs/PSs to access it and the mask
2605 //
2606 HDC hDCMask;
2607 HDC hDCBuffer;
2608 HPS hPSMask;
2609 HPS hPSBuffer;
2610 DEVOPENSTRUC vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
2611 BITMAPINFOHEADER2 vBmpHdr;
2612 HBITMAP hBufBitmap;
2613 SIZEL vSize = {0, 0};
2614 LONG rc;
2615
2616 memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2));
2617 vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2);
2618 vBmpHdr.cx = vWidth;
2619 vBmpHdr.cy = vHeight;
2620 vBmpHdr.cPlanes = 1;
2621 vBmpHdr.cBitCount = 24;
2622
2623 #if wxUSE_DC_CACHEING
2624 if (TRUE)
2625 {
2626 //
2627 // create a temp buffer bitmap and DCs to access it and the mask
2628 //
2629 wxDCCacheEntry* pDCCacheEntry1 = FindDCInCache( NULL
2630 ,pSource->GetHPS()
2631 );
2632 wxDCCacheEntry* pDCCacheEntry2 = FindDCInCache( pDCCacheEntry1
2633 ,GetHPS()
2634 );
2635 wxDCCacheEntry* pBitmapCacheEntry = FindBitmapInCache( GetHPS()
2636 ,vWidth
2637 ,vHeight
2638 );
2639
2640 hPSMask = pDCCacheEntry1->m_hPS;
2641 hDCBuffer = (HDC)pDCCacheEntry2->m_hPS;
2642 hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap;
2643 }
2644 else
2645 #endif
2646 {
2647 hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
2648 hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE);
2649 hPSMask = ::GpiCreatePS(vHabmain, hDCMask, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
2650 hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC);
2651 hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL);
2652 }
2653
2654 POINTL aPoint1[4] = { 0, 0
2655 ,vWidth, vHeight
2656 ,vXdest, vYdest
2657 ,vXdest + vWidth, vYdest + vHeight
2658 };
2659 POINTL aPoint2[4] = { 0, 0
2660 ,vWidth, vHeight
2661 ,vXsrc, vYsrc
2662 ,vXsrc + vWidth, vYsrc + vHeight
2663 };
2664 POINTL aPoint3[4] = { vXdest, vYdest
2665 ,vXdest + vWidth, vYdest + vHeight
2666 ,vXsrc, vYsrc
2667 ,vXsrc + vWidth, vYsrc + vHeight
2668 };
2669 POINTL aPoint4[4] = { vXdest, vYdest
2670 ,vXdest + vWidth, vYdest + vHeight
2671 ,0, 0
2672 ,vWidth, vHeight
2673 };
2674 ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap());
2675 ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap);
2676
2677 //
2678 // Copy dest to buffer
2679 //
2680 rc = ::GpiBitBlt( hPSBuffer
2681 ,GetHPS()
2682 ,4L
2683 ,aPoint1
2684 ,ROP_SRCCOPY
2685 ,BBO_IGNORE
2686 );
2687 if (rc == GPI_ERROR)
2688 {
2689 wxLogLastError(wxT("BitBlt"));
2690 }
2691
2692 //
2693 // Copy src to buffer using selected raster op
2694 //
2695 rc = ::GpiBitBlt( hPSBuffer
2696 ,GetHPS()
2697 ,4L
2698 ,aPoint2
2699 ,lRop
2700 ,BBO_IGNORE
2701 );
2702 if (rc == GPI_ERROR)
2703 {
2704 wxLogLastError(wxT("BitBlt"));
2705 }
2706
2707 //
2708 // Set masked area in buffer to BLACK (pixel value 0)
2709 //
2710 COLORREF vPrevBkCol = ::GpiQueryBackColor(GetHPS());
2711 COLORREF vPrevCol = ::GpiQueryColor(GetHPS());
2712
2713 ::GpiSetBackColor(GetHPS(), OS2RGB(255, 255, 255));
2714 ::GpiSetColor(GetHPS(), OS2RGB(0, 0, 0));
2715
2716 rc = ::GpiBitBlt( hPSBuffer
2717 ,hPSMask
2718 ,4L
2719 ,aPoint2
2720 ,ROP_SRCAND
2721 ,BBO_IGNORE
2722 );
2723 if (rc == GPI_ERROR)
2724 {
2725 wxLogLastError(wxT("BitBlt"));
2726 }
2727
2728 //
2729 // Set unmasked area in dest to BLACK
2730 //
2731 ::GpiSetBackColor(GetHPS(), OS2RGB(0, 0, 0));
2732 ::GpiSetColor(GetHPS(), OS2RGB(255, 255, 255));
2733 rc = ::GpiBitBlt( GetHPS()
2734 ,hPSMask
2735 ,4L
2736 ,aPoint3
2737 ,ROP_SRCAND
2738 ,BBO_IGNORE
2739 );
2740 if (rc == GPI_ERROR)
2741 {
2742 wxLogLastError(wxT("BitBlt"));
2743 }
2744
2745 //
2746 // Restore colours to original values
2747 //
2748 ::GpiSetBackColor(GetHPS(), vPrevBkCol);
2749 ::GpiSetColor(GetHPS(), vPrevCol);
2750
2751 //
2752 // OR buffer to dest
2753 //
2754 rc = ::GpiBitBlt( GetHPS()
2755 ,hPSMask
2756 ,4L
2757 ,aPoint4
2758 ,ROP_SRCPAINT
2759 ,BBO_IGNORE
2760 );
2761 if (rc == GPI_ERROR)
2762 {
2763 bSuccess = FALSE;
2764 wxLogLastError(wxT("BitBlt"));
2765 }
2766
2767 //
2768 // Tidy up temporary DCs and bitmap
2769 //
2770 ::GpiSetBitmap(hPSMask, NULLHANDLE);
2771 ::GpiSetBitmap(hPSBuffer, NULLHANDLE);
2772 #if !wxUSE_DC_CACHEING
2773 ::GpiDestroyPS(hPSMask);
2774 ::GpiDestroyPS(hPSBuffer);
2775 ::DevCloseDC(hDCMask);
2776 ::DevCloseDC(hDCBuffer);
2777 ::GpiDeleteBitmap(hBufBitmap);
2778 #endif
2779 bSuccess = TRUE;
2780 }
2781 else // no mask, just BitBlt() it
2782 {
2783 POINTL aPoint[4] = { vXdest, vYdest
2784 ,vXdest + vWidth, vYdest + vHeight
2785 ,vXsrc, vYsrc
2786 ,vXsrc + vWidth, vYsrc + vHeight
2787 };
2788
2789 bSuccess = (::GpiBitBlt( m_hPS
2790 ,pSource->GetHPS()
2791 ,4L
2792 ,aPoint
2793 ,lRop
2794 ,BBO_IGNORE
2795 ) != GPI_ERROR);
2796 if (!bSuccess )
2797 {
2798 wxLogLastError(wxT("BitBlt"));
2799 }
2800 }
2801 vCbnd.lColor = (LONG)vOldTextColor;
2802 ::GpiSetAttrs( m_hPS // presentation-space handle
2803 ,PRIM_CHAR // Char primitive.
2804 ,CBB_COLOR // sets color.
2805 ,0
2806 ,&vCbnd // buffer for attributes.
2807 );
2808 ::GpiSetBackColor(m_hPS, (LONG)vOldBackground);
2809 return bSuccess;
2810 }
2811
2812 void wxDC::DoGetSize(
2813 int* pnWidth
2814 , int* pnHeight
2815 ) const
2816 {
2817 LONG lArray[CAPS_HEIGHT];
2818
2819 if(::DevQueryCaps( m_hDC
2820 ,CAPS_FAMILY
2821 ,CAPS_HEIGHT
2822 ,lArray
2823 ))
2824 {
2825 *pnWidth = lArray[CAPS_WIDTH];
2826 *pnHeight = lArray[CAPS_HEIGHT];
2827 }
2828 }; // end of wxDC::DoGetSize(
2829
2830 void wxDC::DoGetSizeMM(
2831 int* pnWidth
2832 , int* pnHeight
2833 ) const
2834 {
2835 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2836
2837 if(::DevQueryCaps( m_hDC
2838 ,CAPS_FAMILY
2839 ,CAPS_VERTICAL_RESOLUTION
2840 ,lArray
2841 ))
2842 {
2843 int nWidth;
2844 int nHeight;
2845 int nHorzRes;
2846 int nVertRes;
2847
2848 nWidth = lArray[CAPS_WIDTH];
2849 nHeight = lArray[CAPS_HEIGHT];
2850 nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2851 nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2852 nWidth = (nHorzRes/1000) * nWidth;
2853 nHeight = (nVertRes/1000) * nHeight;
2854 }
2855 }; // end of wxDC::DoGetSizeMM
2856
2857 wxSize wxDC::GetPPI() const
2858 {
2859 LONG lArray[CAPS_VERTICAL_RESOLUTION];
2860 int nWidth;
2861 int nHeight;
2862
2863 if(::DevQueryCaps( m_hDC
2864 ,CAPS_FAMILY
2865 ,CAPS_VERTICAL_RESOLUTION
2866 ,lArray
2867 ))
2868 {
2869 int nPelWidth;
2870 int nPelHeight;
2871 int nHorzRes;
2872 int nVertRes;
2873
2874 nPelWidth = lArray[CAPS_WIDTH];
2875 nPelHeight = lArray[CAPS_HEIGHT];
2876 nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter
2877 nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter
2878 nWidth = (nHorzRes/39.3) * nPelWidth;
2879 nHeight = (nVertRes/39.3) * nPelHeight;
2880 }
2881 return (wxSize(nWidth,nHeight));
2882 } // end of wxDC::GetPPI
2883
2884 void wxDC::SetLogicalScale(
2885 double dX
2886 , double dY
2887 )
2888 {
2889 m_logicalScaleX = dX;
2890 m_logicalScaleY = dY;
2891 }; // end of wxDC::SetLogicalScale
2892
2893 #if WXWIN_COMPATIBILITY
2894 void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y,
2895 float *descent, float *externalLeading,
2896 wxFont *theFont, bool use16bit) const
2897 {
2898 wxCoord x1, y1, descent1, externalLeading1;
2899 GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit);
2900 *x = x1; *y = y1;
2901 if (descent)
2902 *descent = descent1;
2903 if (externalLeading)
2904 *externalLeading = externalLeading1;
2905 }
2906 #endif
2907
wxWidgets (Impactor)