xref: /trunk/main/vcl/unx/generic/gdi/salgdi.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_vcl.hxx"
30 
31 #include "tools/debug.hxx"
32 
33 #include "basegfx/polygon/b2dpolygon.hxx"
34 #include "basegfx/polygon/b2dpolypolygon.hxx"
35 #include "basegfx/polygon/b2dpolypolygontools.hxx"
36 #include "basegfx/polygon/b2dpolygontools.hxx"
37 #include "basegfx/polygon/b2dpolygonclipper.hxx"
38 #include "basegfx/polygon/b2dlinegeometry.hxx"
39 #include "basegfx/matrix/b2dhommatrix.hxx"
40 #include "basegfx/matrix/b2dhommatrixtools.hxx"
41 #include "basegfx/polygon/b2dpolypolygoncutter.hxx"
42 #include "basegfx/polygon/b2dtrapezoid.hxx"
43 
44 #include "vcl/jobdata.hxx"
45 
46 #include "unx/Xproto.h"
47 #include "unx/salunx.h"
48 #include "unx/saldata.hxx"
49 #include "unx/saldisp.hxx"
50 #include "unx/salgdi.h"
51 #include "unx/salframe.h"
52 #include "unx/salvd.h"
53 
54 #include "printergfx.hxx"
55 #include "xrender_peer.hxx"
56 #include "region.h"
57 
58 #include <vector>
59 #include <queue>
60 #include <set>
61 
62 // -=-= SalPolyLine =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
63 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
64 #define STATIC_POINTS 64
65 
66 class SalPolyLine
67 {
68             XPoint              Points_[STATIC_POINTS];
69             XPoint             *pFirst_;
70 public:
71     inline                      SalPolyLine( sal_uLong nPoints );
72     inline                      SalPolyLine( sal_uLong nPoints, const SalPoint *p );
73     inline                      ~SalPolyLine();
74     inline  XPoint             &operator [] ( sal_uLong n ) const
75                                 { return pFirst_[n]; }
76 };
77 
78 inline SalPolyLine::SalPolyLine( sal_uLong nPoints )
79     : pFirst_( nPoints+1 > STATIC_POINTS ? new XPoint[nPoints+1] : Points_ )
80 {}
81 
82 inline SalPolyLine::SalPolyLine( sal_uLong nPoints, const SalPoint *p )
83     : pFirst_( nPoints+1 > STATIC_POINTS ? new XPoint[nPoints+1] : Points_ )
84 {
85     for( sal_uLong i = 0; i < nPoints; i++ )
86     {
87         pFirst_[i].x = (short)p[i].mnX;
88         pFirst_[i].y = (short)p[i].mnY;
89     }
90     pFirst_[nPoints] = pFirst_[0]; // close polyline
91 }
92 
93 inline SalPolyLine::~SalPolyLine()
94 { if( pFirst_ != Points_ ) delete [] pFirst_; }
95 
96 #undef STATIC_POINTS
97 // -=-= X11SalGraphics =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
98 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
99 X11SalGraphics::X11SalGraphics()
100 {
101     m_pFrame            = NULL;
102     m_pVDev             = NULL;
103     m_pDeleteColormap   = NULL;
104     hDrawable_          = None;
105     m_aRenderPicture    = 0;
106     m_pRenderFormat     = NULL;
107 
108     mpClipRegion            = NULL;
109     pPaintRegion_       = NULL;
110 
111     pPenGC_         = NULL;
112     nPenPixel_          = 0;
113     nPenColor_          = MAKE_SALCOLOR( 0x00, 0x00, 0x00 ); // Black
114 
115     pFontGC_            = NULL;
116     for( int i = 0; i < MAX_FALLBACK; ++i )
117         mpServerFont[i] = NULL;
118 
119     nTextPixel_         = 0;
120     nTextColor_         = MAKE_SALCOLOR( 0x00, 0x00, 0x00 ); // Black
121 
122 #ifdef ENABLE_GRAPHITE
123     // check if graphite fonts have been disabled
124     static const char* pDisableGraphiteStr = getenv( "SAL_DISABLE_GRAPHITE" );
125     bDisableGraphite_       = pDisableGraphiteStr ? (pDisableGraphiteStr[0]!='0') : sal_False;
126 #endif
127 
128     pBrushGC_           = NULL;
129     nBrushPixel_            = 0;
130     nBrushColor_        = MAKE_SALCOLOR( 0xFF, 0xFF, 0xFF ); // White
131     hBrush_             = None;
132 
133     pMonoGC_            = NULL;
134     pCopyGC_            = NULL;
135     pMaskGC_            = NULL;
136     pInvertGC_          = NULL;
137     pInvert50GC_        = NULL;
138     pStippleGC_         = NULL;
139     pTrackingGC_        = NULL;
140 
141     bWindow_            = sal_False;
142     bPrinter_           = sal_False;
143     bVirDev_            = sal_False;
144     bPenGC_         = sal_False;
145     bFontGC_            = sal_False;
146     bBrushGC_           = sal_False;
147     bMonoGC_            = sal_False;
148     bCopyGC_            = sal_False;
149     bInvertGC_          = sal_False;
150     bInvert50GC_        = sal_False;
151     bStippleGC_         = sal_False;
152     bTrackingGC_        = sal_False;
153     bXORMode_           = sal_False;
154     bDitherBrush_       = sal_False;
155 }
156 
157 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
158 X11SalGraphics::~X11SalGraphics()
159 {
160     ReleaseFonts();
161     freeResources();
162 }
163 
164 // -=-= SalGraphics / X11SalGraphics =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
165 
166 void X11SalGraphics::freeResources()
167 {
168     Display *pDisplay = GetXDisplay();
169 
170     DBG_ASSERT( !pPaintRegion_, "pPaintRegion_" );
171     if( mpClipRegion ) XDestroyRegion( mpClipRegion ), mpClipRegion = None;
172 
173     if( hBrush_ )       XFreePixmap( pDisplay, hBrush_ ), hBrush_ = None;
174     if( pPenGC_ )       XFreeGC( pDisplay, pPenGC_ ), pPenGC_ = None;
175     if( pFontGC_ )      XFreeGC( pDisplay, pFontGC_ ), pFontGC_ = None;
176     if( pBrushGC_ )     XFreeGC( pDisplay, pBrushGC_ ), pBrushGC_ = None;
177     if( pMonoGC_ )      XFreeGC( pDisplay, pMonoGC_ ), pMonoGC_ = None;
178     if( pCopyGC_ )      XFreeGC( pDisplay, pCopyGC_ ), pCopyGC_ = None;
179     if( pMaskGC_ )      XFreeGC( pDisplay, pMaskGC_ ), pMaskGC_ = None;
180     if( pInvertGC_ )    XFreeGC( pDisplay, pInvertGC_ ), pInvertGC_ = None;
181     if( pInvert50GC_ )  XFreeGC( pDisplay, pInvert50GC_ ), pInvert50GC_ = None;
182     if( pStippleGC_ )   XFreeGC( pDisplay, pStippleGC_ ), pStippleGC_ = None;
183     if( pTrackingGC_ )  XFreeGC( pDisplay, pTrackingGC_ ), pTrackingGC_ = None;
184     if( m_pDeleteColormap )
185         delete m_pDeleteColormap, m_pColormap = m_pDeleteColormap = NULL;
186 
187     if( m_aRenderPicture )
188         XRenderPeer::GetInstance().FreePicture( m_aRenderPicture ), m_aRenderPicture = 0;
189 
190     bPenGC_ = bFontGC_ = bBrushGC_ = bMonoGC_ = bCopyGC_ = bInvertGC_ = bInvert50GC_ = bStippleGC_ = bTrackingGC_ = false;
191 }
192 
193 void X11SalGraphics::SetDrawable( Drawable aDrawable, int nScreen )
194 {
195     // shortcut if nothing changed
196     if( hDrawable_ == aDrawable )
197         return;
198 
199     // free screen specific resources if needed
200     if( nScreen != m_nScreen )
201     {
202         freeResources();
203         m_pColormap = &GetX11SalData()->GetDisplay()->GetColormap( nScreen );
204         m_nScreen = nScreen;
205     }
206 
207     hDrawable_ = aDrawable;
208     SetXRenderFormat( NULL );
209     if( m_aRenderPicture )
210     {
211         XRenderPeer::GetInstance().FreePicture( m_aRenderPicture );
212         m_aRenderPicture = 0;
213     }
214 
215     if( hDrawable_ )
216     {
217         nPenPixel_      = GetPixel( nPenColor_ );
218         nTextPixel_     = GetPixel( nTextColor_ );
219         nBrushPixel_    = GetPixel( nBrushColor_ );
220     }
221 }
222 
223 void X11SalGraphics::Init( SalFrame *pFrame, Drawable aTarget, int nScreen )
224 {
225 #if 0 // TODO: use SetDrawable() instead
226     m_pColormap     = &GetX11SalData()->GetDisplay()->GetColormap(nScreen);
227     hDrawable_      = aTarget;
228     m_nScreen       = nScreen;
229     SetXRenderFormat( NULL );
230     if( m_aRenderPicture )
231         XRenderPeer::GetInstance().FreePicture( m_aRenderPicture ), m_aRenderPicture = 0;
232 
233     nPenPixel_      = GetPixel( nPenColor_ );
234     nTextPixel_     = GetPixel( nTextColor_ );
235     nBrushPixel_    = GetPixel( nBrushColor_ );
236 #else
237     m_pColormap     = &GetX11SalData()->GetDisplay()->GetColormap(nScreen);
238     m_nScreen = nScreen;
239     SetDrawable( aTarget, nScreen );
240 #endif
241 
242     bWindow_        = sal_True;
243     m_pFrame        = pFrame;
244     m_pVDev         = NULL;
245 }
246 
247 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
248 void X11SalGraphics::DeInit()
249 {
250     SetDrawable( None, m_nScreen );
251 }
252 
253 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
254 void X11SalGraphics::SetClipRegion( GC pGC, XLIB_Region pXReg ) const
255 {
256     Display *pDisplay = GetXDisplay();
257 
258     int n = 0;
259     XLIB_Region Regions[3];
260 
261     if( mpClipRegion /* && !XEmptyRegion( mpClipRegion ) */ )
262         Regions[n++] = mpClipRegion;
263 //  if( pPaintRegion_ /* && !XEmptyRegion( pPaintRegion_ ) */ )
264 //      Regions[n++] = pPaintRegion_;
265 
266     if( pXReg && !XEmptyRegion( pXReg ) )
267         Regions[n++] = pXReg;
268 
269     if( 0 == n )
270         XSetClipMask( pDisplay, pGC, None );
271     else if( 1 == n )
272         XSetRegion( pDisplay, pGC, Regions[0] );
273     else
274     {
275         XLIB_Region pTmpRegion = XCreateRegion();
276         XIntersectRegion( Regions[0], Regions[1], pTmpRegion );
277 //      if( 3 == n )
278 //          XIntersectRegion( Regions[2], pTmpRegion, pTmpRegion );
279         XSetRegion( pDisplay, pGC, pTmpRegion );
280         XDestroyRegion( pTmpRegion );
281     }
282 }
283 
284 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
285 GC X11SalGraphics::SelectPen()
286 {
287     Display *pDisplay = GetXDisplay();
288 
289     if( !pPenGC_ )
290     {
291         XGCValues values;
292         values.subwindow_mode       = ClipByChildren;
293         values.fill_rule            = EvenOddRule;      // Pict import/ Gradient
294         values.graphics_exposures   = False;
295 
296         pPenGC_ = XCreateGC( pDisplay, hDrawable_,
297                              GCSubwindowMode | GCFillRule | GCGraphicsExposures,
298                              &values );
299     }
300 
301     if( !bPenGC_ )
302     {
303         if( nPenColor_ != SALCOLOR_NONE )
304             XSetForeground( pDisplay, pPenGC_, nPenPixel_ );
305         XSetFunction  ( pDisplay, pPenGC_, bXORMode_ ? GXxor : GXcopy );
306         SetClipRegion( pPenGC_ );
307         bPenGC_ = sal_True;
308     }
309 
310     return pPenGC_;
311 }
312 
313 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
314 GC X11SalGraphics::SelectBrush()
315 {
316     Display *pDisplay = GetXDisplay();
317 
318     DBG_ASSERT( nBrushColor_ != SALCOLOR_NONE, "Brush Transparent" );
319 
320     if( !pBrushGC_ )
321     {
322         XGCValues values;
323         // values.subwindow_mode        = IncludeInferiors;
324         values.subwindow_mode       = ClipByChildren;
325         values.fill_rule            = EvenOddRule;      // Pict import/ Gradient
326         values.graphics_exposures   = False;
327 
328         pBrushGC_ = XCreateGC( pDisplay, hDrawable_,
329                                GCSubwindowMode | GCFillRule | GCGraphicsExposures,
330                                &values );
331     }
332 
333     if( !bBrushGC_ )
334     {
335         if( !bDitherBrush_ )
336         {
337             XSetFillStyle ( pDisplay, pBrushGC_, FillSolid );
338             XSetForeground( pDisplay, pBrushGC_, nBrushPixel_ );
339             if( bPrinter_ )
340                 XSetTile( pDisplay, pBrushGC_, None );
341         }
342         else
343         {
344             // Bug in Sun Solaris 2.5.1, XFillPolygon doesn't allways reflect
345             // changes of the tile. PROPERTY_BUG_Tile doesn't fix this !
346             if (GetDisplay()->GetProperties() & PROPERTY_BUG_FillPolygon_Tile)
347                 XSetFillStyle ( pDisplay, pBrushGC_, FillSolid );
348 
349             XSetFillStyle ( pDisplay, pBrushGC_, FillTiled );
350             XSetTile      ( pDisplay, pBrushGC_, hBrush_ );
351         }
352         XSetFunction  ( pDisplay, pBrushGC_, bXORMode_ ? GXxor : GXcopy );
353         SetClipRegion( pBrushGC_ );
354 
355         bBrushGC_ = sal_True;
356     }
357 
358     return pBrushGC_;
359 }
360 
361 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
362 GC X11SalGraphics::GetTrackingGC()
363 {
364     const char    dash_list[2] = {2, 2};
365 
366     if( !pTrackingGC_ )
367     {
368         XGCValues     values;
369 
370         values.graphics_exposures   = False;
371         values.foreground           = m_pColormap->GetBlackPixel()
372                                       ^ m_pColormap->GetWhitePixel();
373         values.function             = GXxor;
374         values.line_width           = 1;
375         values.line_style           = LineOnOffDash;
376 
377         pTrackingGC_ = XCreateGC( GetXDisplay(), GetDrawable(),
378                                   GCGraphicsExposures | GCForeground | GCFunction
379                                   | GCLineWidth | GCLineStyle,
380                                   &values );
381         XSetDashes( GetXDisplay(), pTrackingGC_, 0, dash_list, 2 );
382     }
383 
384     if( !bTrackingGC_ )
385     {
386         SetClipRegion( pTrackingGC_ );
387         bTrackingGC_ = sal_True;
388     }
389 
390     return pTrackingGC_;
391 }
392 
393 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
394 void X11SalGraphics::DrawLines( sal_uLong              nPoints,
395                                 const SalPolyLine &rPoints,
396                                 GC                 pGC,
397                                 bool               bClose
398                                 )
399 {
400     // errechne wie viele Linien XWindow auf einmal zeichnen kann
401     sal_uLong nMaxLines = (GetDisplay()->GetMaxRequestSize() - sizeof(xPolyPointReq))
402                       / sizeof(xPoint);
403     if( nMaxLines > nPoints ) nMaxLines = nPoints;
404 
405     // gebe alle Linien aus, die XWindows zeichnen kann.
406     sal_uLong n;
407     for( n = 0; nPoints - n > nMaxLines; n += nMaxLines - 1 )
408         XDrawLines( GetXDisplay(),
409                     GetDrawable(),
410                     pGC,
411                     &rPoints[n],
412                     nMaxLines,
413                     CoordModeOrigin );
414 
415     if( n < nPoints )
416         XDrawLines( GetXDisplay(),
417                     GetDrawable(),
418                     pGC,
419                     &rPoints[n],
420                     nPoints - n,
421                     CoordModeOrigin );
422     if( bClose )
423     {
424         if( rPoints[nPoints-1].x != rPoints[0].x || rPoints[nPoints-1].y != rPoints[0].y )
425             drawLine( rPoints[nPoints-1].x, rPoints[nPoints-1].y, rPoints[0].x, rPoints[0].y );
426     }
427 }
428 
429 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
430 // Dithern: Calculate a dither-pixmap and make a brush of it
431 #define P_DELTA         51
432 #define DMAP( v, m )    ((v % P_DELTA) > m ? (v / P_DELTA) + 1 : (v / P_DELTA))
433 
434 BOOL X11SalGraphics::GetDitherPixmap( SalColor nSalColor )
435 {
436     static const short nOrdDither8Bit[ 8 ][ 8 ] =
437     {
438         { 0, 38,  9, 48,  2, 40, 12, 50},
439         {25, 12, 35, 22, 28, 15, 37, 24},
440         { 6, 44,  3, 41,  8, 47,  5, 44},
441         {32, 19, 28, 16, 34, 21, 31, 18},
442         { 1, 40, 11, 49,  0, 39, 10, 48},
443         {27, 14, 36, 24, 26, 13, 36, 23},
444         { 8, 46,  4, 43,  7, 45,  4, 42},
445         {33, 20, 30, 17, 32, 20, 29, 16}
446     };
447 
448     // test for correct depth (8bit)
449     if( GetColormap().GetVisual().GetDepth() != 8 )
450         return sal_False;
451 
452     char    pBits[64];
453     char   *pBitsPtr = pBits;
454 
455     // Set the pallette-entries for the dithering tile
456     sal_uInt8 nSalColorRed   = SALCOLOR_RED   ( nSalColor );
457     sal_uInt8 nSalColorGreen = SALCOLOR_GREEN ( nSalColor );
458     sal_uInt8 nSalColorBlue  = SALCOLOR_BLUE  ( nSalColor );
459 
460     for( int nY = 0; nY < 8; nY++ )
461     {
462         for( int nX = 0; nX < 8; nX++ )
463         {
464             short nMagic = nOrdDither8Bit[nY][nX];
465             sal_uInt8 nR   = P_DELTA * DMAP( nSalColorRed,   nMagic );
466             sal_uInt8 nG   = P_DELTA * DMAP( nSalColorGreen, nMagic );
467             sal_uInt8 nB   = P_DELTA * DMAP( nSalColorBlue,  nMagic );
468 
469             *pBitsPtr++ = GetColormap().GetPixel( MAKE_SALCOLOR( nR, nG, nB ) );
470         }
471     }
472 
473     // create the tile as ximage and an according pixmap -> caching
474     XImage *pImage = XCreateImage( GetXDisplay(),
475                                    GetColormap().GetXVisual(),
476                                    8,
477                                    ZPixmap,
478                                    0,               // offset
479                                    pBits,           // data
480                                    8, 8,            // width & height
481                                    8,               // bitmap_pad
482                                    0 );             // (default) bytes_per_line
483 
484     if ( GetDisplay()->GetProperties() & PROPERTY_BUG_Tile )
485     {
486         if (hBrush_)
487             XFreePixmap (GetXDisplay(), hBrush_);
488         hBrush_ = XCreatePixmap( GetXDisplay(), GetDrawable(), 8, 8, 8 );
489     }
490     else
491     if( !hBrush_ )
492         hBrush_ = XCreatePixmap( GetXDisplay(), GetDrawable(), 8, 8, 8 );
493 
494     // put the ximage to the pixmap
495     XPutImage( GetXDisplay(),
496                hBrush_,
497                GetDisplay()->GetCopyGC( m_nScreen ),
498                pImage,
499                0, 0,                        // Source
500                0, 0,                        // Destination
501                8, 8 );                      // width & height
502 
503     // destroy image-frame but not palette-data
504     pImage->data = NULL;
505     XDestroyImage( pImage );
506 
507     return sal_True;
508 }
509 
510 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
511 void X11SalGraphics::GetResolution( sal_Int32 &rDPIX, sal_Int32 &rDPIY ) // const
512 {
513     const SalDisplay *pDisplay = GetDisplay();
514 
515     rDPIX = pDisplay->GetResolution().A();
516     rDPIY = pDisplay->GetResolution().B();
517     if( !pDisplay->GetExactResolution() && rDPIY < 96 )
518     {
519         rDPIX = Divide( rDPIX * 96, rDPIY );
520             rDPIY = 96;
521     }
522     else if ( rDPIY > 200 )
523     {
524         rDPIX = Divide( rDPIX * 200, rDPIY );
525         rDPIY = 200;
526     }
527 
528     // #i12705# equalize x- and y-resolution if they are close enough
529     if( rDPIX != rDPIY )
530     {
531         // different x- and y- resolutions are usually artifacts of
532         // a wrongly calculated screen size.
533         //if( (13*rDPIX >= 10*rDPIY) && (13*rDPIY >= 10*rDPIX) )  //+-30%
534         {
535 #ifdef DEBUG
536             printf("Forcing Resolution from %" SAL_PRIdINT32 "x%" SAL_PRIdINT32 " to %" SAL_PRIdINT32 "x%" SAL_PRIdINT32 "\n",
537                     rDPIX,rDPIY,rDPIY,rDPIY);
538 #endif
539             rDPIX = rDPIY; // y-resolution is more trustworthy
540         }
541     }
542 }
543 
544 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
545 sal_uInt16 X11SalGraphics::GetBitCount() // const
546 {
547     return GetVisual().GetDepth();
548 }
549 
550 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
551 long X11SalGraphics::GetGraphicsWidth() const
552 {
553     if( m_pFrame )
554         return m_pFrame->maGeometry.nWidth;
555     else if( m_pVDev )
556         return m_pVDev->GetWidth();
557     else
558         return 0;
559 }
560 
561 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
562 long X11SalGraphics::GetGraphicsHeight() const
563 {
564     if( m_pFrame )
565         return m_pFrame->maGeometry.nHeight;
566     else if( m_pVDev )
567         return m_pVDev->GetHeight();
568     else
569         return 0;
570 }
571 
572 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
573 void X11SalGraphics::ResetClipRegion()
574 {
575     if( mpClipRegion )
576     {
577         bPenGC_         = sal_False;
578         bFontGC_        = sal_False;
579         bBrushGC_       = sal_False;
580         bMonoGC_        = sal_False;
581         bCopyGC_        = sal_False;
582         bInvertGC_      = sal_False;
583         bInvert50GC_    = sal_False;
584         bStippleGC_     = sal_False;
585         bTrackingGC_    = sal_False;
586 
587         XDestroyRegion( mpClipRegion );
588         mpClipRegion    = NULL;
589     }
590 }
591 
592 bool X11SalGraphics::setClipRegion( const Region& i_rClip )
593 {
594     if( mpClipRegion )
595         XDestroyRegion( mpClipRegion );
596     mpClipRegion = XCreateRegion();
597 
598     ImplRegionInfo aInfo;
599     long nX, nY, nW, nH;
600     bool bRegionRect = i_rClip.ImplGetFirstRect(aInfo, nX, nY, nW, nH );
601     while( bRegionRect )
602     {
603         if ( nW && nH )
604         {
605             XRectangle aRect;
606             aRect.x         = (short)nX;
607             aRect.y         = (short)nY;
608             aRect.width     = (unsigned short)nW;
609             aRect.height    = (unsigned short)nH;
610 
611             XUnionRectWithRegion( &aRect, mpClipRegion, mpClipRegion );
612         }
613         bRegionRect = i_rClip.ImplGetNextRect( aInfo, nX, nY, nW, nH );
614     }
615 
616     // done, invalidate GCs
617     bPenGC_         = sal_False;
618     bFontGC_        = sal_False;
619     bBrushGC_       = sal_False;
620     bMonoGC_        = sal_False;
621     bCopyGC_        = sal_False;
622     bInvertGC_      = sal_False;
623     bInvert50GC_    = sal_False;
624     bStippleGC_     = sal_False;
625     bTrackingGC_    = sal_False;
626 
627     if( XEmptyRegion( mpClipRegion ) )
628     {
629         XDestroyRegion( mpClipRegion );
630         mpClipRegion= NULL;
631     }
632     return true;
633 }
634 
635 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
636 void X11SalGraphics::SetLineColor()
637 {
638     if( nPenColor_ != SALCOLOR_NONE )
639     {
640         nPenColor_      = SALCOLOR_NONE;
641         bPenGC_         = sal_False;
642     }
643 }
644 
645 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
646 void X11SalGraphics::SetLineColor( SalColor nSalColor )
647 {
648     if( nPenColor_ != nSalColor )
649     {
650         nPenColor_      = nSalColor;
651         nPenPixel_      = GetPixel( nSalColor );
652         bPenGC_         = sal_False;
653     }
654 }
655 
656 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
657 void X11SalGraphics::SetFillColor()
658 {
659     if( nBrushColor_ != SALCOLOR_NONE )
660     {
661         bDitherBrush_   = sal_False;
662         nBrushColor_    = SALCOLOR_NONE;
663         bBrushGC_       = sal_False;
664     }
665 }
666 
667 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
668 void X11SalGraphics::SetFillColor( SalColor nSalColor )
669 {
670     if( nBrushColor_ != nSalColor )
671     {
672         bDitherBrush_   = sal_False;
673         nBrushColor_    = nSalColor;
674         nBrushPixel_    = GetPixel( nSalColor );
675         if( TrueColor != GetColormap().GetVisual().GetClass()
676             && GetColormap().GetColor( nBrushPixel_ ) != nBrushColor_
677             && nSalColor != MAKE_SALCOLOR( 0x00, 0x00, 0x00 ) // black
678             && nSalColor != MAKE_SALCOLOR( 0x00, 0x00, 0x80 ) // blue
679             && nSalColor != MAKE_SALCOLOR( 0x00, 0x80, 0x00 ) // green
680             && nSalColor != MAKE_SALCOLOR( 0x00, 0x80, 0x80 ) // cyan
681             && nSalColor != MAKE_SALCOLOR( 0x80, 0x00, 0x00 ) // red
682             && nSalColor != MAKE_SALCOLOR( 0x80, 0x00, 0x80 ) // magenta
683             && nSalColor != MAKE_SALCOLOR( 0x80, 0x80, 0x00 ) // brown
684             && nSalColor != MAKE_SALCOLOR( 0x80, 0x80, 0x80 ) // gray
685             && nSalColor != MAKE_SALCOLOR( 0xC0, 0xC0, 0xC0 ) // light gray
686             && nSalColor != MAKE_SALCOLOR( 0x00, 0x00, 0xFF ) // light blue
687             && nSalColor != MAKE_SALCOLOR( 0x00, 0xFF, 0x00 ) // light green
688             && nSalColor != MAKE_SALCOLOR( 0x00, 0xFF, 0xFF ) // light cyan
689             && nSalColor != MAKE_SALCOLOR( 0xFF, 0x00, 0x00 ) // light red
690             && nSalColor != MAKE_SALCOLOR( 0xFF, 0x00, 0xFF ) // light magenta
691             && nSalColor != MAKE_SALCOLOR( 0xFF, 0xFF, 0x00 ) // light brown
692             && nSalColor != MAKE_SALCOLOR( 0xFF, 0xFF, 0xFF ) )
693             bDitherBrush_ = GetDitherPixmap(nSalColor);
694         bBrushGC_       = sal_False;
695     }
696 }
697 
698 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
699 void X11SalGraphics::SetROPLineColor( SalROPColor nROPColor )
700 {
701     switch( nROPColor )
702     {
703         case SAL_ROP_0 : // 0
704             nPenPixel_ = (Pixel)0;
705             break;
706         case SAL_ROP_1 : // 1
707             nPenPixel_ = (Pixel)(1 << GetVisual().GetDepth()) - 1;
708             break;
709         case SAL_ROP_INVERT : // 2
710             nPenPixel_ = (Pixel)(1 << GetVisual().GetDepth()) - 1;
711             break;
712     }
713     nPenColor_  = GetColormap().GetColor( nPenPixel_ );
714     bPenGC_     = sal_False;
715 }
716 
717 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
718 void X11SalGraphics::SetROPFillColor( SalROPColor nROPColor )
719 {
720     switch( nROPColor )
721     {
722         case SAL_ROP_0 : // 0
723             nBrushPixel_ = (Pixel)0;
724             break;
725         case SAL_ROP_1 : // 1
726             nBrushPixel_ = (Pixel)(1 << GetVisual().GetDepth()) - 1;
727             break;
728         case SAL_ROP_INVERT : // 2
729             nBrushPixel_ = (Pixel)(1 << GetVisual().GetDepth()) - 1;
730             break;
731     }
732     bDitherBrush_   = sal_False;
733     nBrushColor_    = GetColormap().GetColor( nBrushPixel_ );
734     bBrushGC_       = sal_False;
735 }
736 
737 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
738 void X11SalGraphics::SetXORMode( bool bSet, bool )
739 {
740     if( !bXORMode_ == bSet )
741     {
742         bXORMode_   = bSet;
743         bPenGC_     = sal_False;
744         bFontGC_    = sal_False;
745         bBrushGC_   = sal_False;
746         bMonoGC_        = sal_False;
747         bCopyGC_        = sal_False;
748         bInvertGC_  = sal_False;
749         bInvert50GC_    = sal_False;
750         bStippleGC_ = sal_False;
751         bTrackingGC_    = sal_False;
752     }
753 }
754 
755 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
756 void X11SalGraphics::drawPixel( long nX, long nY )
757 {
758     if( nPenColor_ !=  SALCOLOR_NONE )
759         XDrawPoint( GetXDisplay(), GetDrawable(), SelectPen(), nX, nY );
760 }
761 
762 void X11SalGraphics::drawPixel( long nX, long nY, SalColor nSalColor )
763 {
764     if( nSalColor != SALCOLOR_NONE )
765     {
766         Display *pDisplay = GetXDisplay();
767 
768         if( (nPenColor_ == SALCOLOR_NONE) && !bPenGC_ )
769         {
770             SetLineColor( nSalColor );
771             XDrawPoint( pDisplay, GetDrawable(), SelectPen(), nX, nY );
772             nPenColor_ = SALCOLOR_NONE;
773             bPenGC_ = False;
774         }
775         else
776         {
777             GC pGC = SelectPen();
778 
779             if( nSalColor != nPenColor_ )
780                 XSetForeground( pDisplay, pGC, GetPixel( nSalColor ) );
781 
782             XDrawPoint( pDisplay, GetDrawable(), pGC, nX, nY );
783 
784             if( nSalColor != nPenColor_ )
785                 XSetForeground( pDisplay, pGC, nPenPixel_ );
786         }
787     }
788 }
789 
790 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
791 void X11SalGraphics::drawLine( long nX1, long nY1, long nX2, long nY2 )
792 {
793     if( nPenColor_ != SALCOLOR_NONE )
794     {
795         if ( GetDisplay()->GetProperties() & PROPERTY_BUG_DrawLine )
796         {
797             GC aGC = SelectPen();
798             XDrawPoint (GetXDisplay(), GetDrawable(), aGC, (int)nX1, (int)nY1);
799             XDrawPoint (GetXDisplay(), GetDrawable(), aGC, (int)nX2, (int)nY2);
800             XDrawLine  (GetXDisplay(), GetDrawable(), aGC, nX1, nY1, nX2, nY2 );
801         }
802         else
803             XDrawLine( GetXDisplay(), GetDrawable(),SelectPen(),
804                        nX1, nY1, nX2, nY2 );
805     }
806 }
807 
808 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
809 void X11SalGraphics::drawRect( long nX, long nY, long nDX, long nDY )
810 {
811     if( nBrushColor_ != SALCOLOR_NONE )
812     {
813         XFillRectangle( GetXDisplay(),
814                         GetDrawable(),
815                         SelectBrush(),
816                         nX, nY, nDX, nDY );
817     }
818     // Beschreibung DrawRect verkehrt, deshalb -1
819     if( nPenColor_ != SALCOLOR_NONE )
820         XDrawRectangle( GetXDisplay(),
821                         GetDrawable(),
822                         SelectPen(),
823                         nX, nY, nDX-1, nDY-1 );
824 }
825 
826 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
827 void X11SalGraphics::drawPolyLine( sal_uLong nPoints, const SalPoint *pPtAry )
828 {
829     drawPolyLine( nPoints, pPtAry, false );
830 }
831 
832 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
833 void X11SalGraphics::drawPolyLine( sal_uLong nPoints, const SalPoint *pPtAry, bool bClose )
834 {
835     if( nPenColor_ != 0xFFFFFFFF )
836     {
837         SalPolyLine Points( nPoints, pPtAry );
838 
839         DrawLines( nPoints, Points, SelectPen(), bClose );
840     }
841 }
842 
843 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
844 void X11SalGraphics::drawPolygon( sal_uLong nPoints, const SalPoint* pPtAry )
845 {
846     if( nPoints == 0 )
847         return;
848 
849     if( nPoints < 3 )
850     {
851         if( !bXORMode_ )
852         {
853             if( 1 == nPoints  )
854                 drawPixel( pPtAry[0].mnX, pPtAry[0].mnY );
855             else
856                 drawLine( pPtAry[0].mnX, pPtAry[0].mnY,
857                           pPtAry[1].mnX, pPtAry[1].mnY );
858         }
859         return;
860     }
861 
862     SalPolyLine Points( nPoints, pPtAry );
863 
864     nPoints++;
865 
866     /* WORKAROUND: some Xservers (Xorg, VIA chipset in this case)
867      * do not draw the visible part of a polygon
868      * if it overlaps to the left of screen 0,y.
869      * This happens to be the case in the gradient drawn in the
870      * menubar background. workaround for the special case of
871      * of a rectangle overlapping to the left.
872      */
873     if( nPoints == 5 &&
874     Points[ 0 ].x == Points[ 1 ].x &&
875         Points[ 1 ].y == Points[ 2 ].y &&
876         Points[ 2 ].x == Points[ 3 ].x &&
877         Points[ 0 ].x == Points[ 4 ].x && Points[ 0 ].y == Points[ 4 ].y
878        )
879     {
880         bool bLeft = false;
881         bool bRight = false;
882         for(unsigned int i = 0; i < nPoints; i++ )
883     {
884             if( Points[i].x < 0 )
885                 bLeft = true;
886             else
887                 bRight= true;
888     }
889     if( bLeft && ! bRight )
890         return;
891     if( bLeft && bRight )
892         {
893             for( unsigned int i = 0; i < nPoints; i++ )
894                 if( Points[i].x < 0 )
895                     Points[i].x = 0;
896         }
897     }
898 
899     if( nBrushColor_ != SALCOLOR_NONE )
900         XFillPolygon( GetXDisplay(),
901                       GetDrawable(),
902                       SelectBrush(),
903                       &Points[0], nPoints,
904                       Complex, CoordModeOrigin );
905 
906     if( nPenColor_ != 0xFFFFFFFF )
907         DrawLines( nPoints, Points, SelectPen(), true );
908 }
909 
910 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
911 void X11SalGraphics::drawPolyPolygon( sal_uInt32        nPoly,
912                                    const sal_uInt32    *pPoints,
913                                    PCONSTSALPOINT  *pPtAry )
914 {
915     if( nBrushColor_ != SALCOLOR_NONE )
916     {
917         sal_uInt32      i, n;
918         XLIB_Region pXRegA  = NULL;
919 
920         for( i = 0; i < nPoly; i++ ) {
921             n = pPoints[i];
922             SalPolyLine Points( n, pPtAry[i] );
923             if( n > 2 )
924             {
925                 XLIB_Region pXRegB = XPolygonRegion( &Points[0], n+1, WindingRule );
926                 if( !pXRegA )
927                     pXRegA = pXRegB;
928                 else
929                 {
930                     XXorRegion( pXRegA, pXRegB, pXRegA );
931                     XDestroyRegion( pXRegB );
932                 }
933             }
934         }
935 
936         if( pXRegA )
937         {
938             XRectangle aXRect;
939             XClipBox( pXRegA, &aXRect );
940 
941             GC pGC = SelectBrush();
942             SetClipRegion( pGC, pXRegA ); // ??? doppelt
943             XDestroyRegion( pXRegA );
944             bBrushGC_ = sal_False;
945 
946             XFillRectangle( GetXDisplay(),
947                             GetDrawable(),
948                             pGC,
949                             aXRect.x, aXRect.y, aXRect.width, aXRect.height );
950         }
951    }
952 
953    if( nPenColor_ != SALCOLOR_NONE )
954        for( sal_uInt32 i = 0; i < nPoly; i++ )
955            drawPolyLine( pPoints[i], pPtAry[i], true );
956 }
957 
958 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
959 
960 sal_Bool X11SalGraphics::drawPolyLineBezier( sal_uLong, const SalPoint*, const BYTE* )
961 {
962     return sal_False;
963 }
964 
965 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
966 
967 sal_Bool X11SalGraphics::drawPolygonBezier( sal_uLong, const SalPoint*, const BYTE* )
968 {
969     return sal_False;
970 }
971 
972 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
973 
974 sal_Bool X11SalGraphics::drawPolyPolygonBezier( sal_uInt32, const sal_uInt32*,
975                                                 const SalPoint* const*, const BYTE* const* )
976 {
977     return sal_False;
978 }
979 
980 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
981 
982 void X11SalGraphics::invert( sal_uLong nPoints,
983                              const SalPoint* pPtAry,
984                              SalInvert nFlags )
985 {
986     SalPolyLine Points ( nPoints, pPtAry );
987 
988     GC pGC;
989     if( SAL_INVERT_50 & nFlags )
990         pGC = GetInvert50GC();
991     else
992         if ( SAL_INVERT_TRACKFRAME & nFlags )
993             pGC = GetTrackingGC();
994         else
995             pGC = GetInvertGC();
996 
997     if( SAL_INVERT_TRACKFRAME & nFlags )
998         DrawLines ( nPoints, Points, pGC, true );
999     else
1000         XFillPolygon( GetXDisplay(),
1001                       GetDrawable(),
1002                       pGC,
1003                       &Points[0], nPoints,
1004                       Complex, CoordModeOrigin );
1005 }
1006 
1007 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1008 
1009 BOOL X11SalGraphics::drawEPS( long,long,long,long,void*,sal_uLong )
1010 {
1011     return sal_False;
1012 }
1013 
1014 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1015 
1016 XID X11SalGraphics::GetXRenderPicture()
1017 {
1018     XRenderPeer& rRenderPeer = XRenderPeer::GetInstance();
1019 
1020     if( !m_aRenderPicture )
1021     {
1022         // check xrender support for matching visual
1023         // find a XRenderPictFormat compatible with the Drawable
1024         XRenderPictFormat* pVisualFormat = static_cast<XRenderPictFormat*>(GetXRenderFormat());
1025         if( !pVisualFormat )
1026         {
1027             Visual* pVisual = GetDisplay()->GetVisual( m_nScreen ).GetVisual();
1028             pVisualFormat = rRenderPeer.FindVisualFormat( pVisual );
1029             if( !pVisualFormat )
1030                 return 0;
1031             // cache the XRenderPictFormat
1032             SetXRenderFormat( static_cast<void*>(pVisualFormat) );
1033         }
1034 
1035         // get the matching xrender target for drawable
1036         m_aRenderPicture = rRenderPeer.CreatePicture( hDrawable_, pVisualFormat, 0, NULL );
1037     }
1038 
1039 #if 0
1040     // setup clipping so the callers don't have to do it themselves
1041     // TODO: avoid clipping if already set correctly
1042     if( mpClipRegion && !XEmptyRegion( mpClipRegion ) )
1043         rRenderPeer.SetPictureClipRegion( aDstPic, mpClipRegion );
1044     else
1045 #endif
1046     {
1047         // reset clip region
1048         // TODO: avoid clip reset if already done
1049         XRenderPictureAttributes aAttr;
1050         aAttr.clip_mask = None;
1051         rRenderPeer.ChangePicture( m_aRenderPicture, CPClipMask, &aAttr );
1052     }
1053 
1054     return m_aRenderPicture;
1055 }
1056 
1057 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1058 
1059 SystemGraphicsData X11SalGraphics::GetGraphicsData() const
1060 {
1061     SystemGraphicsData aRes;
1062 
1063     aRes.nSize = sizeof(aRes);
1064     aRes.pDisplay  = GetXDisplay();
1065     aRes.hDrawable = hDrawable_;
1066     aRes.pVisual   = GetDisplay()->GetVisual( m_nScreen ).GetVisual();
1067     aRes.nScreen   = m_nScreen;
1068     aRes.nDepth    = GetDisplay()->GetVisual( m_nScreen ).GetDepth();
1069     aRes.aColormap = GetDisplay()->GetColormap( m_nScreen ).GetXColormap();
1070     aRes.pRenderFormat = m_pRenderFormat;
1071     return aRes;
1072 }
1073 
1074 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1075 
1076 // draw a poly-polygon
1077 bool X11SalGraphics::drawPolyPolygon( const ::basegfx::B2DPolyPolygon& rOrigPolyPoly, double fTransparency )
1078 {
1079     // nothing to do for empty polypolygons
1080     const int nOrigPolyCount = rOrigPolyPoly.count();
1081     if( nOrigPolyCount <= 0 )
1082         return sal_True;
1083 
1084     // nothing to do if everything is transparent
1085     if( (nBrushColor_ == SALCOLOR_NONE)
1086     &&  (nPenColor_ == SALCOLOR_NONE) )
1087         return sal_True;
1088 
1089     // cannot handle pencolor!=brushcolor yet
1090     if( (nPenColor_ != SALCOLOR_NONE)
1091     &&  (nPenColor_ != nBrushColor_) )
1092         return sal_False;
1093 
1094     // TODO: remove the env-variable when no longer needed
1095     static const char* pRenderEnv = getenv( "SAL_DISABLE_RENDER_POLY" );
1096     if( pRenderEnv )
1097         return sal_False;
1098 
1099     // snap to raster if requested
1100     basegfx::B2DPolyPolygon aPolyPoly = rOrigPolyPoly;
1101     const bool bSnapToRaster = !getAntiAliasB2DDraw();
1102     if( bSnapToRaster )
1103         aPolyPoly = basegfx::tools::snapPointsOfHorizontalOrVerticalEdges( aPolyPoly );
1104 
1105     // don't bother with polygons outside of visible area
1106     const basegfx::B2DRange aViewRange( 0, 0, GetGraphicsWidth(), GetGraphicsHeight() );
1107     aPolyPoly = basegfx::tools::clipPolyPolygonOnRange( aPolyPoly, aViewRange, true, false );
1108     if( !aPolyPoly.count() )
1109         return true;
1110 
1111     // tesselate the polypolygon into trapezoids
1112     basegfx::B2DTrapezoidVector aB2DTrapVector;
1113     basegfx::tools::trapezoidSubdivide( aB2DTrapVector, aPolyPoly );
1114     const int nTrapCount = aB2DTrapVector.size();
1115     if( !nTrapCount )
1116         return true;
1117     const bool bDrawn = drawFilledTrapezoids( &aB2DTrapVector[0], nTrapCount, fTransparency );
1118     return bDrawn;
1119 }
1120 
1121 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1122 
1123 bool X11SalGraphics::drawFilledTrapezoids( const ::basegfx::B2DTrapezoid* pB2DTraps, int nTrapCount, double fTransparency )
1124 {
1125     if( nTrapCount <= 0 )
1126         return true;
1127 
1128     Picture aDstPic = GetXRenderPicture();
1129     // check xrender support for this drawable
1130     if( !aDstPic )
1131         return false;
1132 
1133      // convert the B2DTrapezoids into XRender-Trapezoids
1134     typedef std::vector<XTrapezoid> TrapezoidVector;
1135     TrapezoidVector aTrapVector( nTrapCount );
1136     const basegfx::B2DTrapezoid* pB2DTrap = pB2DTraps;
1137     for( int i = 0; i < nTrapCount; ++pB2DTrap, ++i )
1138     {
1139         XTrapezoid& rTrap = aTrapVector[ i ] ;
1140 
1141          // set y-coordinates
1142         const double fY1 = pB2DTrap->getTopY();
1143         rTrap.left.p1.y = rTrap.right.p1.y = rTrap.top = XDoubleToFixed( fY1 );
1144         const double fY2 = pB2DTrap->getBottomY();
1145         rTrap.left.p2.y = rTrap.right.p2.y = rTrap.bottom = XDoubleToFixed( fY2 );
1146 
1147          // set x-coordinates
1148         const double fXL1 = pB2DTrap->getTopXLeft();
1149         rTrap.left.p1.x = XDoubleToFixed( fXL1 );
1150         const double fXR1 = pB2DTrap->getTopXRight();
1151         rTrap.right.p1.x = XDoubleToFixed( fXR1 );
1152         const double fXL2 = pB2DTrap->getBottomXLeft();
1153         rTrap.left.p2.x = XDoubleToFixed( fXL2 );
1154         const double fXR2 = pB2DTrap->getBottomXRight();
1155         rTrap.right.p2.x = XDoubleToFixed( fXR2 );
1156     }
1157 
1158     // get xrender Picture for polygon foreground
1159     // TODO: cache it like the target picture which uses GetXRenderPicture()
1160     XRenderPeer& rRenderPeer = XRenderPeer::GetInstance();
1161     SalDisplay::RenderEntry& rEntry = GetDisplay()->GetRenderEntries( m_nScreen )[ 32 ];
1162     if( !rEntry.m_aPicture )
1163     {
1164         Display* pXDisplay = GetXDisplay();
1165 
1166         rEntry.m_aPixmap = ::XCreatePixmap( pXDisplay, hDrawable_, 1, 1, 32 );
1167         XRenderPictureAttributes aAttr;
1168         aAttr.repeat = true;
1169 
1170         XRenderPictFormat* pXRPF = rRenderPeer.FindStandardFormat( PictStandardARGB32 );
1171         rEntry.m_aPicture = rRenderPeer.CreatePicture( rEntry.m_aPixmap, pXRPF, CPRepeat, &aAttr );
1172     }
1173 
1174     // set polygon foreground color and opacity
1175     XRenderColor aRenderColor = GetXRenderColor( nBrushColor_ , fTransparency );
1176     rRenderPeer.FillRectangle( PictOpSrc, rEntry.m_aPicture, &aRenderColor, 0, 0, 1, 1 );
1177 
1178     // set clipping
1179     // TODO: move into GetXRenderPicture?
1180     if( mpClipRegion && !XEmptyRegion( mpClipRegion ) )
1181         rRenderPeer.SetPictureClipRegion( aDstPic, mpClipRegion );
1182 
1183     // render the trapezoids
1184     const XRenderPictFormat* pMaskFormat = rRenderPeer.GetStandardFormatA8();
1185     rRenderPeer.CompositeTrapezoids( PictOpOver,
1186         rEntry.m_aPicture, aDstPic, pMaskFormat, 0, 0, &aTrapVector[0], aTrapVector.size() );
1187 
1188     return true;
1189 }
1190 
1191 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1192 
1193 bool X11SalGraphics::drawPolyLine(const ::basegfx::B2DPolygon& rPolygon, double fTransparency, const ::basegfx::B2DVector& rLineWidth, basegfx::B2DLineJoin eLineJoin)
1194 {
1195     const bool bIsHairline = (rLineWidth.getX() == rLineWidth.getY()) && (rLineWidth.getX() <= 1.2);
1196 
1197     // #i101491#
1198     if( !bIsHairline && (rPolygon.count() > 1000) )
1199     {
1200         // the used basegfx::tools::createAreaGeometry is simply too
1201         // expensive with very big polygons; fallback to caller (who
1202         // should use ImplLineConverter normally)
1203         // AW: ImplLineConverter had to be removed since it does not even
1204         // know LineJoins, so the fallback will now prepare the line geometry
1205         // the same way.
1206         return false;
1207     }
1208 
1209     // temporarily adjust brush color to pen color
1210     // since the line is drawn as an area-polygon
1211     const SalColor aKeepBrushColor = nBrushColor_;
1212     nBrushColor_ = nPenColor_;
1213 
1214     // #i11575#desc5#b adjust B2D tesselation result to raster positions
1215     basegfx::B2DPolygon aPolygon = rPolygon;
1216     const double fHalfWidth = 0.5 * rLineWidth.getX();
1217     aPolygon.transform( basegfx::tools::createTranslateB2DHomMatrix(+fHalfWidth,+fHalfWidth) );
1218 
1219     // shortcut for hairline drawing to improve performance
1220     bool bDrawnOk = true;
1221     if( bIsHairline )
1222     {
1223         // hairlines can benefit from a simplified tesselation
1224         // e.g. for hairlines the linejoin style can be ignored
1225         basegfx::B2DTrapezoidVector aB2DTrapVector;
1226         basegfx::tools::createLineTrapezoidFromB2DPolygon( aB2DTrapVector, aPolygon, rLineWidth.getX() );
1227 
1228         // draw tesselation result
1229         const int nTrapCount = aB2DTrapVector.size();
1230         if( nTrapCount > 0 )
1231             bDrawnOk = drawFilledTrapezoids( &aB2DTrapVector[0], nTrapCount, fTransparency );
1232 
1233         // restore the original brush GC
1234         nBrushColor_ = aKeepBrushColor;
1235         return bDrawnOk;
1236     }
1237 
1238     // get the area polygon for the line polygon
1239     if( (rLineWidth.getX() != rLineWidth.getY())
1240     && !basegfx::fTools::equalZero( rLineWidth.getY() ) )
1241     {
1242         // prepare for createAreaGeometry() with anisotropic linewidth
1243         aPolygon.transform( basegfx::tools::createScaleB2DHomMatrix(1.0, rLineWidth.getX() / rLineWidth.getY()));
1244     }
1245 
1246     // create the area-polygon for the line
1247     const basegfx::B2DPolyPolygon aAreaPolyPoly( basegfx::tools::createAreaGeometry(aPolygon, fHalfWidth, eLineJoin) );
1248 
1249     if( (rLineWidth.getX() != rLineWidth.getY())
1250     && !basegfx::fTools::equalZero( rLineWidth.getX() ) )
1251     {
1252         // postprocess createAreaGeometry() for anisotropic linewidth
1253         aPolygon.transform(basegfx::tools::createScaleB2DHomMatrix(1.0, rLineWidth.getY() / rLineWidth.getX()));
1254     }
1255 
1256     // draw each area polypolygon component individually
1257     // to emulate the polypolygon winding rule "non-zero"
1258     const int nPolyCount = aAreaPolyPoly.count();
1259     for( int nPolyIdx = 0; nPolyIdx < nPolyCount; ++nPolyIdx )
1260     {
1261         const ::basegfx::B2DPolyPolygon aOnePoly( aAreaPolyPoly.getB2DPolygon( nPolyIdx ) );
1262         bDrawnOk = drawPolyPolygon( aOnePoly, fTransparency );
1263         if( !bDrawnOk )
1264             break;
1265     }
1266 
1267     // restore the original brush GC
1268     nBrushColor_ = aKeepBrushColor;
1269     return bDrawnOk;
1270 }
1271 
1272 // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1273 
1274