xref: /aoo41x/main/vcl/source/gdi/outdev4.cxx (revision e5539b4a)
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_vcl.hxx"
26 
27 #include <tools/debug.hxx>
28 #include <tools/line.hxx>
29 #include <tools/poly.hxx>
30 
31 #include <vcl/gradient.hxx>
32 #include <vcl/metaact.hxx>
33 #include <vcl/gdimtf.hxx>
34 #include <vcl/salbtype.hxx>
35 #include <vcl/hatch.hxx>
36 #include <vcl/window.hxx>
37 #include <vcl/virdev.hxx>
38 #include <vcl/outdev.hxx>
39 
40 #include "pdfwriter_impl.hxx"
41 
42 #include "window.h"
43 #include "salframe.hxx"
44 #include "salgdi.hxx"
45 #include "svdata.hxx"
46 #include "outdata.hxx"
47 
48 #include <basegfx/polygon/b2dpolygon.hxx>
49 #include <basegfx/polygon/b2dpolypolygon.hxx>
50 #include <basegfx/matrix/b2dhommatrix.hxx>
51 
52 // -----------
53 // - Defines -
54 // -----------
55 
56 #define HATCH_MAXPOINTS				1024
57 #define GRADIENT_DEFAULT_STEPCOUNT	0
58 
59 // ----------------
60 // - Cmp-Function -
61 // ----------------
62 
ImplHatchCmpFnc(const void * p1,const void * p2)63 extern "C" int __LOADONCALLAPI ImplHatchCmpFnc( const void* p1, const void* p2 )
64 {
65 	const long nX1 = ( (Point*) p1 )->X();
66 	const long nX2 = ( (Point*) p2 )->X();
67 	const long nY1 = ( (Point*) p1 )->Y();
68 	const long nY2 = ( (Point*) p2 )->Y();
69 
70 	return ( nX1 > nX2 ? 1 : nX1 == nX2 ? nY1 > nY2 ? 1: nY1 == nY2 ? 0 : -1 : -1 );
71 }
72 
73 // =======================================================================
74 
75 DBG_NAMEEX( OutputDevice )
DBG_NAMEEX(Gradient)76 DBG_NAMEEX( Gradient )
77 
78 // =======================================================================
79 
80 void OutputDevice::ImplDrawPolygon( const Polygon& rPoly, const PolyPolygon* pClipPolyPoly )
81 {
82 	if( pClipPolyPoly )
83 		ImplDrawPolyPolygon( rPoly, pClipPolyPoly );
84 	else
85 	{
86 		sal_uInt16 nPoints = rPoly.GetSize();
87 
88 		if ( nPoints < 2 )
89 			return;
90 
91 		const SalPoint* pPtAry = (const SalPoint*)rPoly.GetConstPointAry();
92 		mpGraphics->DrawPolygon( nPoints, pPtAry, this );
93 	}
94 }
95 
96 // -----------------------------------------------------------------------
97 
ImplDrawPolyPolygon(const PolyPolygon & rPolyPoly,const PolyPolygon * pClipPolyPoly)98 void OutputDevice::ImplDrawPolyPolygon( const PolyPolygon& rPolyPoly, const PolyPolygon* pClipPolyPoly )
99 {
100 	PolyPolygon* pPolyPoly;
101 
102 	if( pClipPolyPoly )
103 	{
104 		pPolyPoly = new PolyPolygon;
105 		rPolyPoly.GetIntersection( *pClipPolyPoly, *pPolyPoly );
106 	}
107 	else
108 		pPolyPoly = (PolyPolygon*) &rPolyPoly;
109 
110 	if( pPolyPoly->Count() == 1 )
111 	{
112 		const Polygon	rPoly = pPolyPoly->GetObject( 0 );
113 		sal_uInt16			nSize = rPoly.GetSize();
114 
115 		if( nSize >= 2 )
116 		{
117 			const SalPoint* pPtAry = (const SalPoint*)rPoly.GetConstPointAry();
118 			mpGraphics->DrawPolygon( nSize, pPtAry, this );
119 		}
120 	}
121 	else if( pPolyPoly->Count() )
122 	{
123 		sal_uInt16				nCount = pPolyPoly->Count();
124 		sal_uInt32*			pPointAry = new sal_uInt32[nCount];
125 		PCONSTSALPOINT* 	pPointAryAry = new PCONSTSALPOINT[nCount];
126 		sal_uInt16				i = 0;
127 		do
128 		{
129 			const Polygon&	rPoly = pPolyPoly->GetObject( i );
130 			sal_uInt16			nSize = rPoly.GetSize();
131 			if ( nSize )
132 			{
133 				pPointAry[i]	= nSize;
134 				pPointAryAry[i] = (PCONSTSALPOINT)rPoly.GetConstPointAry();
135 				i++;
136 			}
137 			else
138 				nCount--;
139 		}
140 		while( i < nCount );
141 
142 		if( nCount == 1 )
143 			mpGraphics->DrawPolygon( *pPointAry, *pPointAryAry, this );
144 		else
145 			mpGraphics->DrawPolyPolygon( nCount, pPointAry, pPointAryAry, this );
146 
147 		delete[] pPointAry;
148 		delete[] pPointAryAry;
149 	}
150 
151 	if( pClipPolyPoly )
152 		delete pPolyPoly;
153 }
154 
155 // -----------------------------------------------------------------------
156 
ImplGetGradientColorValue(long nValue)157 inline sal_uInt8 ImplGetGradientColorValue( long nValue )
158 {
159 	if ( nValue < 0 )
160 		return 0;
161 	else if ( nValue > 0xFF )
162 		return 0xFF;
163 	else
164 		return (sal_uInt8)nValue;
165 }
166 
167 // -----------------------------------------------------------------------
168 
ImplDrawLinearGradient(const Rectangle & rRect,const Gradient & rGradient,sal_Bool bMtf,const PolyPolygon * pClipPolyPoly)169 void OutputDevice::ImplDrawLinearGradient( const Rectangle& rRect,
170 										   const Gradient& rGradient,
171 										   sal_Bool bMtf, const PolyPolygon* pClipPolyPoly )
172 {
173 	// get BoundRect of rotated rectangle
174 	Rectangle aRect = rRect;
175 	sal_uInt16	nAngle = rGradient.GetAngle() % 3600;
176 	double	fAngle	= nAngle * F_PI1800;
177 	double	fWidth	= aRect.GetWidth();
178 	double	fHeight = aRect.GetHeight();
179 	double	fDX 	= fWidth  * fabs( cos( fAngle ) ) +
180 					  fHeight * fabs( sin( fAngle ) );
181 	double	fDY 	= fHeight * fabs( cos( fAngle ) ) +
182 					  fWidth  * fabs( sin( fAngle ) );
183 			fDX 	= (fDX - fWidth)  * 0.5 + 0.5;
184 			fDY 	= (fDY - fHeight) * 0.5 + 0.5;
185 	aRect.Left()   -= (long)fDX;
186 	aRect.Right()  += (long)fDX;
187 	aRect.Top()    -= (long)fDY;
188 	aRect.Bottom() += (long)fDY;
189 
190 	sal_Bool	bLinear = ( rGradient.GetStyle() == GRADIENT_LINEAR );
191 	double		fBorder = rGradient.GetBorder() * aRect.GetHeight() / 100.0;
192 	Point		aCenter = rRect.Center();
193     if ( !bLinear )
194     {
195         fBorder /= 2.0;
196     }
197     Rectangle aMirrorRect = aRect; // used in style axial
198     aMirrorRect.Top() = ( aRect.Top() + aRect.Bottom() ) / 2;
199     if ( !bLinear )
200     {
201         aRect.Bottom() = aMirrorRect.Top();
202     }
203 
204 	// Intensitaeten von Start- und Endfarbe ggf. aendern
205 	long    nFactor;
206 	Color	aStartCol	= rGradient.GetStartColor();
207 	Color	aEndCol 	= rGradient.GetEndColor();
208 	long	nStartRed	= aStartCol.GetRed();
209 	long	nStartGreen = aStartCol.GetGreen();
210 	long	nStartBlue	= aStartCol.GetBlue();
211 	long	nEndRed 	= aEndCol.GetRed();
212 	long	nEndGreen	= aEndCol.GetGreen();
213 	long	nEndBlue	= aEndCol.GetBlue();
214             nFactor 	= rGradient.GetStartIntensity();
215 			nStartRed	= (nStartRed   * nFactor) / 100;
216 			nStartGreen = (nStartGreen * nFactor) / 100;
217 			nStartBlue	= (nStartBlue  * nFactor) / 100;
218 			nFactor 	= rGradient.GetEndIntensity();
219 			nEndRed 	= (nEndRed	 * nFactor) / 100;
220 			nEndGreen	= (nEndGreen * nFactor) / 100;
221 			nEndBlue	= (nEndBlue  * nFactor) / 100;
222 
223     // gradient style axial has exchanged start and end colors
224     if ( !bLinear)
225     {
226         long nTempColor = nStartRed;
227         nStartRed = nEndRed;
228         nEndRed = nTempColor;
229         nTempColor = nStartGreen;
230         nStartGreen = nEndGreen;
231         nEndGreen = nTempColor;
232         nTempColor = nStartBlue;
233         nStartBlue = nEndBlue;
234         nEndBlue = nTempColor;
235     }
236 
237     sal_uInt8   nRed;
238     sal_uInt8   nGreen;
239     sal_uInt8   nBlue;
240 
241     // Create border
242     Rectangle aBorderRect = aRect;
243     Polygon     aPoly( 4 );
244     if (fBorder > 0.0)
245     {
246         nRed        = (sal_uInt8)nStartRed;
247         nGreen      = (sal_uInt8)nStartGreen;
248         nBlue       = (sal_uInt8)nStartBlue;
249         if ( bMtf )
250             mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
251         else
252             mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
253 
254         aBorderRect.Bottom() = (long)( aBorderRect.Top() + fBorder );
255         aRect.Top() = aBorderRect.Bottom();
256         aPoly[0] = aBorderRect.TopLeft();
257         aPoly[1] = aBorderRect.TopRight();
258         aPoly[2] = aBorderRect.BottomRight();
259         aPoly[3] = aBorderRect.BottomLeft();
260         aPoly.Rotate( aCenter, nAngle );
261         if ( bMtf )
262             mpMetaFile->AddAction( new MetaPolygonAction( aPoly ) );
263         else
264             ImplDrawPolygon( aPoly, pClipPolyPoly );
265         if ( !bLinear)
266         {
267             aBorderRect = aMirrorRect;
268             aBorderRect.Top() = (long) ( aBorderRect.Bottom() - fBorder );
269             aMirrorRect.Bottom() = aBorderRect.Top();
270             aPoly[0] = aBorderRect.TopLeft();
271             aPoly[1] = aBorderRect.TopRight();
272             aPoly[2] = aBorderRect.BottomRight();
273             aPoly[3] = aBorderRect.BottomLeft();
274             aPoly.Rotate( aCenter, nAngle );
275             if ( bMtf )
276                 mpMetaFile->AddAction( new MetaPolygonAction( aPoly ) );
277             else
278                 ImplDrawPolygon( aPoly, pClipPolyPoly );
279         }
280     }
281 
282     // calculate step count
283     long    nStepCount  = rGradient.GetSteps();
284 	// generate nStepCount, if not passed
285 	long nMinRect = aRect.GetHeight();
286 	if ( !nStepCount )
287 	{
288 		long nInc = 1;
289 		if ( meOutDevType != OUTDEV_PRINTER && !bMtf )
290         {
291 			nInc = (nMinRect < 50) ? 2 : 4;
292         }
293 		else
294         {
295             // Use display-equivalent step size calculation
296 			nInc = (nMinRect < 800) ? 10 : 20;
297         }
298 		nStepCount = nMinRect / nInc;
299 	}
300 
301 	// minimal three steps and maximal as max color steps
302 	long   nAbsRedSteps   = Abs( nEndRed   - nStartRed );
303 	long   nAbsGreenSteps = Abs( nEndGreen - nStartGreen );
304 	long   nAbsBlueSteps  = Abs( nEndBlue  - nStartBlue );
305 	long   nMaxColorSteps = Max( nAbsRedSteps , nAbsGreenSteps );
306     nMaxColorSteps = Max( nMaxColorSteps, nAbsBlueSteps );
307 	long nSteps = Min( nStepCount, nMaxColorSteps );
308     if ( nSteps < 3)
309     {
310         nSteps = 3;
311     }
312 
313     double fScanInc = ((double)aRect.GetHeight()) / (double) nSteps;
314     double fGradientLine = (double)aRect.Top();
315     double fMirrorGradientLine = (double) aMirrorRect.Bottom();
316 
317     double fAlpha = 0.0;
318     const double fStepsMinus1 = ((double)nSteps) - 1.0;
319     double fTempColor;
320     if ( !bLinear)
321     {
322         nSteps -= 1; // draw middle polygons as one polygon after loop to avoid gap
323     }
324     for ( long i = 0; i < nSteps; i++ )
325     {
326         // linear interpolation of color
327         fAlpha = ((double)i) / fStepsMinus1;
328         fTempColor = ((double)nStartRed) * (1.0-fAlpha) + ((double)nEndRed) * fAlpha;
329         nRed = ImplGetGradientColorValue((long)fTempColor);
330         fTempColor = ((double)nStartGreen) * (1.0-fAlpha) + ((double)nEndGreen) * fAlpha;
331         nGreen = ImplGetGradientColorValue((long)fTempColor);
332         fTempColor = ((double)nStartBlue) * (1.0-fAlpha) + ((double)nEndBlue) * fAlpha;
333         nBlue = ImplGetGradientColorValue((long)fTempColor);
334         if ( bMtf )
335             mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
336         else
337             mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
338 
339         // Polygon for this color step
340         aRect.Top() = (long)( fGradientLine + ((double) i) * fScanInc );
341         aRect.Bottom() = (long)( fGradientLine + ( ((double) i) + 1.0 ) * fScanInc );
342         aPoly[0] = aRect.TopLeft();
343         aPoly[1] = aRect.TopRight();
344         aPoly[2] = aRect.BottomRight();
345         aPoly[3] = aRect.BottomLeft();
346         aPoly.Rotate( aCenter, nAngle );
347         if ( bMtf )
348             mpMetaFile->AddAction( new MetaPolygonAction( aPoly ) );
349         else
350             ImplDrawPolygon( aPoly, pClipPolyPoly );
351         if ( !bLinear )
352         {
353             aMirrorRect.Bottom() = (long)( fMirrorGradientLine - ((double) i) * fScanInc );
354             aMirrorRect.Top() = (long)( fMirrorGradientLine - (((double) i) + 1.0)* fScanInc );
355             aPoly[0] = aMirrorRect.TopLeft();
356             aPoly[1] = aMirrorRect.TopRight();
357             aPoly[2] = aMirrorRect.BottomRight();
358             aPoly[3] = aMirrorRect.BottomLeft();
359             aPoly.Rotate( aCenter, nAngle );
360             if ( bMtf )
361                 mpMetaFile->AddAction( new MetaPolygonAction( aPoly ) );
362             else
363                 ImplDrawPolygon( aPoly, pClipPolyPoly );
364         }
365     }
366     if ( !bLinear)
367     {
368         // draw middle polygon with end color
369         nRed = ImplGetGradientColorValue(nEndRed);
370         nGreen = ImplGetGradientColorValue(nEndGreen);
371         nBlue = ImplGetGradientColorValue(nEndBlue);
372         if ( bMtf )
373             mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
374         else
375             mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
376 
377         aRect.Top() = (long)( fGradientLine + ((double)nSteps) * fScanInc );
378         aRect.Bottom() = (long)( fMirrorGradientLine - ((double) nSteps) * fScanInc );
379         aPoly[0] = aRect.TopLeft();
380         aPoly[1] = aRect.TopRight();
381         aPoly[2] = aRect.BottomRight();
382         aPoly[3] = aRect.BottomLeft();
383         aPoly.Rotate( aCenter, nAngle );
384         if ( bMtf )
385             mpMetaFile->AddAction( new MetaPolygonAction( aPoly ) );
386         else
387             ImplDrawPolygon( aPoly, pClipPolyPoly );
388     }
389 }
390 
391 // -----------------------------------------------------------------------
392 
ImplDrawComplexGradient(const Rectangle & rRect,const Gradient & rGradient,sal_Bool bMtf,const PolyPolygon * pClipPolyPoly)393 void OutputDevice::ImplDrawComplexGradient( const Rectangle& rRect,
394 										    const Gradient& rGradient,
395 										    sal_Bool bMtf, const PolyPolygon* pClipPolyPoly )
396 {
397 	// Feststellen ob Ausgabe ueber Polygon oder PolyPolygon
398 	// Bei Rasteroperationen ungleich Overpaint immer PolyPolygone,
399 	// da es zu falschen Ergebnissen kommt, wenn man mehrfach uebereinander
400 	// ausgibt
401 	// Bei Druckern auch immer PolyPolygone, da nicht alle Drucker
402 	// das Uebereinanderdrucken von Polygonen koennen
403 	// Virtuelle Device werden auch ausgeklammert, da einige Treiber
404 	// ansonsten zu langsam sind
405 	PolyPolygon*    pPolyPoly;
406 	Rectangle	    aRect( rRect );
407 	Color			aStartCol( rGradient.GetStartColor() );
408 	Color			aEndCol( rGradient.GetEndColor() );
409     long			nStartRed = ( (long) aStartCol.GetRed() * rGradient.GetStartIntensity() ) / 100;
410     long			nStartGreen = ( (long) aStartCol.GetGreen() * rGradient.GetStartIntensity() ) / 100;
411 	long			nStartBlue = ( (long) aStartCol.GetBlue() * rGradient.GetStartIntensity() ) / 100;
412     long			nEndRed = ( (long) aEndCol.GetRed() * rGradient.GetEndIntensity() ) / 100;
413     long			nEndGreen = ( (long) aEndCol.GetGreen() * rGradient.GetEndIntensity() ) / 100;
414 	long			nEndBlue = ( (long) aEndCol.GetBlue() * rGradient.GetEndIntensity() ) / 100;
415 	long			nRedSteps = nEndRed	- nStartRed;
416 	long			nGreenSteps = nEndGreen - nStartGreen;
417 	long			nBlueSteps = nEndBlue	- nStartBlue;
418 	long            nStepCount = rGradient.GetSteps();
419 	sal_uInt16	        nAngle = rGradient.GetAngle() % 3600;
420 
421     if( (meRasterOp != ROP_OVERPAINT) || (meOutDevType != OUTDEV_WINDOW) || bMtf )
422 		pPolyPoly = new PolyPolygon( 2 );
423 	else
424 		pPolyPoly = NULL;
425 
426     if( rGradient.GetStyle() == GRADIENT_SQUARE || rGradient.GetStyle() == GRADIENT_RECT )
427     {
428         const double    fAngle	= nAngle * F_PI1800;
429 	    const double    fWidth	= aRect.GetWidth();
430 	    const double    fHeight = aRect.GetHeight();
431 	    double          fDX = fWidth  * fabs( cos( fAngle ) ) + fHeight * fabs( sin( fAngle ) );
432 	    double          fDY = fHeight * fabs( cos( fAngle ) ) + fWidth  * fabs( sin( fAngle ) );
433 
434         fDX = ( fDX - fWidth ) * 0.5 + 0.5;
435         fDY = ( fDY - fHeight ) * 0.5 + 0.5;
436 
437 	    aRect.Left() -= (long) fDX;
438 	    aRect.Right() += (long) fDX;
439 	    aRect.Top() -= (long) fDY;
440 	    aRect.Bottom() += (long) fDY;
441     }
442 
443     Size aSize( aRect.GetSize() );
444 
445     if( rGradient.GetStyle() == GRADIENT_RADIAL )
446 	{
447 	    // Radien-Berechnung fuer Kreis
448 		aSize.Width() = (long)(0.5 + sqrt((double)aSize.Width()*(double)aSize.Width() + (double)aSize.Height()*(double)aSize.Height()));
449 		aSize.Height() = aSize.Width();
450 	}
451 	else if( rGradient.GetStyle() == GRADIENT_ELLIPTICAL )
452 	{
453 	    // Radien-Berechnung fuer Ellipse
454 		aSize.Width() = (long)( 0.5 + (double) aSize.Width()  * 1.4142 );
455 		aSize.Height() = (long)( 0.5 + (double) aSize.Height() * 1.4142 );
456 	}
457     else if( rGradient.GetStyle() == GRADIENT_SQUARE )
458     {
459 		if ( aSize.Width() > aSize.Height() )
460 			aSize.Height() = aSize.Width();
461 		else
462 			aSize.Width() = aSize.Height();
463     }
464 
465 	// neue Mittelpunkte berechnen
466 	long	nZWidth = aRect.GetWidth()	* (long) rGradient.GetOfsX() / 100;
467 	long	nZHeight = aRect.GetHeight() * (long) rGradient.GetOfsY() / 100;
468 	long	nBorderX = (long) rGradient.GetBorder() * aSize.Width()  / 100;
469 	long	nBorderY = (long) rGradient.GetBorder() * aSize.Height() / 100;
470 	Point	aCenter( aRect.Left() + nZWidth, aRect.Top() + nZHeight );
471 
472 	// Rand beruecksichtigen
473 	aSize.Width() -= nBorderX;
474 	aSize.Height() -= nBorderY;
475 
476 	// Ausgaberechteck neu setzen
477 	aRect.Left() = aCenter.X() - ( aSize.Width() >> 1 );
478 	aRect.Top() = aCenter.Y() - ( aSize.Height() >> 1 );
479 
480     aRect.SetSize( aSize );
481 	long nMinRect = Min( aRect.GetWidth(), aRect.GetHeight() );
482 
483 	// Anzahl der Schritte berechnen, falls nichts uebergeben wurde
484     if( !nStepCount )
485 	{
486 		long nInc;
487 
488 		if ( meOutDevType != OUTDEV_PRINTER && !bMtf )
489         {
490 			nInc = ( nMinRect < 50 ) ? 2 : 4;
491         }
492 		else
493         {
494             // #105998# Use display-equivalent step size calculation
495 			nInc = (nMinRect < 800) ? 10 : 20;
496         }
497 
498 		if( !nInc )
499 			nInc = 1;
500 
501 		nStepCount = nMinRect / nInc;
502 	}
503 
504     // minimal drei Schritte und maximal die Anzahl der Farbunterschiede
505 	long nSteps = Max( nStepCount, 2L );
506 	long nCalcSteps  = Abs( nRedSteps );
507 	long nTempSteps = Abs( nGreenSteps );
508 	if ( nTempSteps > nCalcSteps )
509 		nCalcSteps = nTempSteps;
510 	nTempSteps = Abs( nBlueSteps );
511 	if ( nTempSteps > nCalcSteps )
512 		nCalcSteps = nTempSteps;
513 	if ( nCalcSteps < nSteps )
514 		nSteps = nCalcSteps;
515 	if ( !nSteps )
516 		nSteps = 1;
517 
518 	// Ausgabebegrenzungen und Schrittweite fuer jede Richtung festlegen
519     Polygon aPoly;
520 	double  fScanLeft = aRect.Left();
521 	double  fScanTop = aRect.Top();
522 	double  fScanRight = aRect.Right();
523 	double  fScanBottom = aRect.Bottom();
524 	double  fScanInc = (double) nMinRect / (double) nSteps * 0.5;
525     sal_uInt8   nRed = (sal_uInt8) nStartRed, nGreen = (sal_uInt8) nStartGreen, nBlue = (sal_uInt8) nStartBlue;
526     bool	bPaintLastPolygon( false ); // #107349# Paint last polygon only if loop has generated any output
527 
528 	if( bMtf )
529 		mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
530 	else
531 		mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
532 
533 	if( pPolyPoly )
534 	{
535     	pPolyPoly->Insert( aPoly = rRect );
536 		pPolyPoly->Insert( aPoly );
537 	}
538 	else
539     {
540 	    // extend rect, to avoid missing bounding line
541         Rectangle aExtRect( rRect );
542 
543         aExtRect.Left() -= 1;
544 	    aExtRect.Top() -= 1;
545 	    aExtRect.Right() += 1;
546 	    aExtRect.Bottom() += 1;
547 
548 		ImplDrawPolygon( aPoly = aExtRect, pClipPolyPoly );
549     }
550 
551 	// Schleife, um nacheinander die Polygone/PolyPolygone auszugeben
552 	for( long i = 1; i < nSteps; i++ )
553 	{
554 		// neues Polygon berechnen
555 		aRect.Left() = (long)( fScanLeft += fScanInc );
556 		aRect.Top() = (long)( fScanTop += fScanInc );
557 		aRect.Right() = (long)( fScanRight -= fScanInc );
558 		aRect.Bottom() = (long)( fScanBottom -= fScanInc );
559 
560 		if( ( aRect.GetWidth() < 2 ) || ( aRect.GetHeight() < 2 ) )
561 			break;
562 
563         if( rGradient.GetStyle() == GRADIENT_RADIAL || rGradient.GetStyle() == GRADIENT_ELLIPTICAL )
564 		    aPoly = Polygon( aRect.Center(), aRect.GetWidth() >> 1, aRect.GetHeight() >> 1 );
565         else
566     		aPoly = Polygon( aRect );
567 
568 		aPoly.Rotate( aCenter, nAngle );
569 
570 		// Farbe entsprechend anpassen
571         const long nStepIndex = ( ( pPolyPoly != NULL ) ? i : ( i + 1 ) );
572         nRed = ImplGetGradientColorValue( nStartRed + ( ( nRedSteps * nStepIndex ) / nSteps ) );
573 		nGreen = ImplGetGradientColorValue( nStartGreen + ( ( nGreenSteps * nStepIndex ) / nSteps ) );
574 		nBlue = ImplGetGradientColorValue( nStartBlue + ( ( nBlueSteps * nStepIndex ) / nSteps ) );
575 
576 		// entweder langsame PolyPolygon-Ausgaben oder schnelles Polygon-Painting
577 		if( pPolyPoly )
578 		{
579             bPaintLastPolygon = true; // #107349# Paint last polygon only if loop has generated any output
580 
581 			pPolyPoly->Replace( pPolyPoly->GetObject( 1 ), 0 );
582 			pPolyPoly->Replace( aPoly, 1 );
583 
584 			if( bMtf )
585 				mpMetaFile->AddAction( new MetaPolyPolygonAction( *pPolyPoly ) );
586 			else
587 				ImplDrawPolyPolygon( *pPolyPoly, pClipPolyPoly );
588 
589             // #107349# Set fill color _after_ geometry painting:
590             // pPolyPoly's geometry is the band from last iteration's
591             // aPoly to current iteration's aPoly. The window outdev
592             // path (see else below), on the other hand, paints the
593             // full aPoly. Thus, here, we're painting the band before
594             // the one painted in the window outdev path below. To get
595             // matching colors, have to delay color setting here.
596             if( bMtf )
597                 mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
598             else
599                 mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
600 		}
601 		else
602         {
603             // #107349# Set fill color _before_ geometry painting
604             if( bMtf )
605                 mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
606             else
607                 mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
608 
609 			ImplDrawPolygon( aPoly, pClipPolyPoly );
610         }
611 	}
612 
613 	// Falls PolyPolygon-Ausgabe, muessen wir noch ein letztes inneres Polygon zeichnen
614 	if( pPolyPoly )
615 	{
616 		const Polygon& rPoly = pPolyPoly->GetObject( 1 );
617 
618         if( !rPoly.GetBoundRect().IsEmpty() )
619 		{
620             // #107349# Paint last polygon with end color only if loop
621             // has generated output. Otherwise, the current
622             // (i.e. start) color is taken, to generate _any_ output.
623             if( bPaintLastPolygon )
624             {
625                 nRed = ImplGetGradientColorValue( nEndRed );
626                 nGreen = ImplGetGradientColorValue( nEndGreen );
627                 nBlue = ImplGetGradientColorValue( nEndBlue );
628             }
629 
630     		if( bMtf )
631             {
632 	    		mpMetaFile->AddAction( new MetaFillColorAction( Color( nRed, nGreen, nBlue ), sal_True ) );
633 				mpMetaFile->AddAction( new MetaPolygonAction( rPoly ) );
634             }
635 		    else
636             {
637 			    mpGraphics->SetFillColor( MAKE_SALCOLOR( nRed, nGreen, nBlue ) );
638    				ImplDrawPolygon( rPoly, pClipPolyPoly );
639             }
640 		}
641 
642 		delete pPolyPoly;
643 	}
644 }
645 
646 // -----------------------------------------------------------------------
647 
DrawGradient(const Rectangle & rRect,const Gradient & rGradient)648 void OutputDevice::DrawGradient( const Rectangle& rRect,
649 								 const Gradient& rGradient )
650 {
651 	DBG_TRACE( "OutputDevice::DrawGradient()" );
652 	DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
653 	DBG_CHKOBJ( &rGradient, Gradient, NULL );
654 
655 	if ( mnDrawMode & DRAWMODE_NOGRADIENT )
656 		return;
657 	else if ( mnDrawMode & ( DRAWMODE_BLACKGRADIENT | DRAWMODE_WHITEGRADIENT | DRAWMODE_SETTINGSGRADIENT) )
658 	{
659 		Color aColor;
660 
661 		if ( mnDrawMode & DRAWMODE_BLACKGRADIENT )
662             aColor = Color( COL_BLACK );
663 		else if ( mnDrawMode & DRAWMODE_WHITEGRADIENT )
664             aColor = Color( COL_WHITE );
665         else if ( mnDrawMode & DRAWMODE_SETTINGSGRADIENT )
666             aColor = GetSettings().GetStyleSettings().GetWindowColor();
667 
668 		if ( mnDrawMode & DRAWMODE_GHOSTEDGRADIENT )
669         {
670             aColor = Color( ( aColor.GetRed() >> 1 ) | 0x80,
671 						    ( aColor.GetGreen() >> 1 ) | 0x80,
672 						    ( aColor.GetBlue() >> 1 ) | 0x80 );
673         }
674 
675 		Push( PUSH_LINECOLOR | PUSH_FILLCOLOR );
676 		SetLineColor( aColor );
677 		SetFillColor( aColor );
678 		DrawRect( rRect );
679 		Pop();
680 		return;
681 	}
682 
683 	Gradient aGradient( rGradient );
684 
685 	if ( mnDrawMode & ( DRAWMODE_GRAYGRADIENT | DRAWMODE_GHOSTEDGRADIENT ) )
686 	{
687 		Color aStartCol( aGradient.GetStartColor() );
688 		Color aEndCol( aGradient.GetEndColor() );
689 
690 		if ( mnDrawMode & DRAWMODE_GRAYGRADIENT )
691 		{
692 			sal_uInt8 cStartLum = aStartCol.GetLuminance(), cEndLum = aEndCol.GetLuminance();
693 			aStartCol = Color( cStartLum, cStartLum, cStartLum );
694 			aEndCol = Color( cEndLum, cEndLum, cEndLum );
695 		}
696 
697 		if ( mnDrawMode & DRAWMODE_GHOSTEDGRADIENT )
698 		{
699 			aStartCol = Color( ( aStartCol.GetRed() >> 1 ) | 0x80,
700 							   ( aStartCol.GetGreen() >> 1 ) | 0x80,
701 							   ( aStartCol.GetBlue() >> 1 ) | 0x80 );
702 
703 			aEndCol = Color( ( aEndCol.GetRed() >> 1 ) | 0x80,
704 							 ( aEndCol.GetGreen() >> 1 ) | 0x80,
705 							 ( aEndCol.GetBlue() >> 1 ) | 0x80 );
706 		}
707 
708 		aGradient.SetStartColor( aStartCol );
709 		aGradient.SetEndColor( aEndCol );
710 	}
711 
712 	if( mpMetaFile )
713 		mpMetaFile->AddAction( new MetaGradientAction( rRect, aGradient ) );
714 
715 	if( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
716 		return;
717 
718 	// Rechteck in Pixel umrechnen
719 	Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
720 	aRect.Justify();
721 
722 	// Wenn Rechteck leer ist, brauchen wir nichts machen
723 	if ( !aRect.IsEmpty() )
724 	{
725 		// Clip Region sichern
726 		Push( PUSH_CLIPREGION );
727 		IntersectClipRegion( rRect );
728 
729         // because we draw with no border line, we have to expand gradient
730         // rect to avoid missing lines on the right and bottom edge
731         aRect.Left()--;
732         aRect.Top()--;
733         aRect.Right()++;
734         aRect.Bottom()++;
735 
736 		// we need a graphics
737 		if ( !mpGraphics )
738 		{
739 			if ( !ImplGetGraphics() )
740 				return;
741 		}
742 
743 		if ( mbInitClipRegion )
744 			ImplInitClipRegion();
745 
746 		if ( !mbOutputClipped )
747 		{
748 			// Gradienten werden ohne Umrandung gezeichnet
749 			if ( mbLineColor || mbInitLineColor )
750 			{
751 				mpGraphics->SetLineColor();
752 				mbInitLineColor = sal_True;
753 			}
754 
755 			mbInitFillColor = sal_True;
756 
757 			// calculate step count if neccessary
758 			if ( !aGradient.GetSteps() )
759 				aGradient.SetSteps( GRADIENT_DEFAULT_STEPCOUNT );
760 
761             if( aGradient.GetStyle() == GRADIENT_LINEAR || aGradient.GetStyle() == GRADIENT_AXIAL )
762     			ImplDrawLinearGradient( aRect, aGradient, sal_False, NULL );
763             else
764 				ImplDrawComplexGradient( aRect, aGradient, sal_False, NULL );
765 		}
766 
767 		Pop();
768 	}
769 
770     if( mpAlphaVDev )
771     {
772         // #i32109#: Make gradient area opaque
773         mpAlphaVDev->ImplFillOpaqueRectangle( rRect );
774     }
775 }
776 
777 // -----------------------------------------------------------------------
778 
DrawGradient(const PolyPolygon & rPolyPoly,const Gradient & rGradient)779 void OutputDevice::DrawGradient( const PolyPolygon& rPolyPoly,
780 								 const Gradient& rGradient )
781 {
782 	DBG_TRACE( "OutputDevice::DrawGradient()" );
783 	DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
784 	DBG_CHKOBJ( &rGradient, Gradient, NULL );
785 
786 	if( mbInitClipRegion )
787 		ImplInitClipRegion();
788 
789 	if( mbOutputClipped )
790 		return;
791 
792 	if( !mpGraphics )
793 		if( !ImplGetGraphics() )
794 			return;
795 
796 	if( rPolyPoly.Count() && rPolyPoly[ 0 ].GetSize() && !( mnDrawMode & DRAWMODE_NOGRADIENT ) )
797 	{
798         if ( mnDrawMode & ( DRAWMODE_BLACKGRADIENT | DRAWMODE_WHITEGRADIENT | DRAWMODE_SETTINGSGRADIENT) )
799 	    {
800 		    Color aColor;
801 
802 		    if ( mnDrawMode & DRAWMODE_BLACKGRADIENT )
803                 aColor = Color( COL_BLACK );
804 		    else if ( mnDrawMode & DRAWMODE_WHITEGRADIENT )
805                 aColor = Color( COL_WHITE );
806             else if ( mnDrawMode & DRAWMODE_SETTINGSGRADIENT )
807                 aColor = GetSettings().GetStyleSettings().GetWindowColor();
808 
809 		    if ( mnDrawMode & DRAWMODE_GHOSTEDGRADIENT )
810             {
811                 aColor = Color( ( aColor.GetRed() >> 1 ) | 0x80,
812 						        ( aColor.GetGreen() >> 1 ) | 0x80,
813 						        ( aColor.GetBlue() >> 1 ) | 0x80 );
814             }
815 
816 		    Push( PUSH_LINECOLOR | PUSH_FILLCOLOR );
817 		    SetLineColor( aColor );
818 		    SetFillColor( aColor );
819 			DrawPolyPolygon( rPolyPoly );
820 		    Pop();
821 		    return;
822 	    }
823 
824 		if( mpMetaFile )
825 		{
826 			const Rectangle	aRect( rPolyPoly.GetBoundRect() );
827 
828 			mpMetaFile->AddAction( new MetaCommentAction( "XGRAD_SEQ_BEGIN" ) );
829 			mpMetaFile->AddAction( new MetaGradientExAction( rPolyPoly, rGradient ) );
830 
831 			if( OUTDEV_PRINTER == meOutDevType )
832 			{
833 				Push( PUSH_CLIPREGION );
834 				IntersectClipRegion( rPolyPoly );
835 				DrawGradient( aRect, rGradient );
836 				Pop();
837 			}
838 			else
839 			{
840 				const sal_Bool	bOldOutput = IsOutputEnabled();
841 
842 				EnableOutput( sal_False );
843 				Push( PUSH_RASTEROP );
844 				SetRasterOp( ROP_XOR );
845 				DrawGradient( aRect, rGradient );
846 				SetFillColor( COL_BLACK );
847 				SetRasterOp( ROP_0 );
848 				DrawPolyPolygon( rPolyPoly );
849 				SetRasterOp( ROP_XOR );
850 				DrawGradient( aRect, rGradient );
851 				Pop();
852 				EnableOutput( bOldOutput );
853 			}
854 
855 			mpMetaFile->AddAction( new MetaCommentAction( "XGRAD_SEQ_END" ) );
856 		}
857 
858 		if( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
859 			return;
860 
861 		Gradient aGradient( rGradient );
862 
863 		if ( mnDrawMode & ( DRAWMODE_GRAYGRADIENT | DRAWMODE_GHOSTEDGRADIENT ) )
864 		{
865 			Color aStartCol( aGradient.GetStartColor() );
866 			Color aEndCol( aGradient.GetEndColor() );
867 
868 			if ( mnDrawMode & DRAWMODE_GRAYGRADIENT )
869 			{
870 				sal_uInt8 cStartLum = aStartCol.GetLuminance(), cEndLum = aEndCol.GetLuminance();
871 				aStartCol = Color( cStartLum, cStartLum, cStartLum );
872 				aEndCol = Color( cEndLum, cEndLum, cEndLum );
873 			}
874 
875 			if ( mnDrawMode & DRAWMODE_GHOSTEDGRADIENT )
876 			{
877 				aStartCol = Color( ( aStartCol.GetRed() >> 1 ) | 0x80,
878 								   ( aStartCol.GetGreen() >> 1 ) | 0x80,
879 								   ( aStartCol.GetBlue() >> 1 ) | 0x80 );
880 
881 				aEndCol = Color( ( aEndCol.GetRed() >> 1 ) | 0x80,
882 								 ( aEndCol.GetGreen() >> 1 ) | 0x80,
883 								 ( aEndCol.GetBlue() >> 1 ) | 0x80 );
884 			}
885 
886 			aGradient.SetStartColor( aStartCol );
887 			aGradient.SetEndColor( aEndCol );
888 		}
889 
890         if( OUTDEV_PRINTER == meOutDevType || ImplGetSVData()->maGDIData.mbNoXORClipping )
891 		{
892 			const Rectangle	aBoundRect( rPolyPoly.GetBoundRect() );
893 
894 			if( !Rectangle( PixelToLogic( Point() ), GetOutputSize() ).IsEmpty() )
895 			{
896 				// Rechteck in Pixel umrechnen
897 				Rectangle aRect( ImplLogicToDevicePixel( aBoundRect ) );
898 				aRect.Justify();
899 
900 				// Wenn Rechteck leer ist, brauchen wir nichts machen
901 				if ( !aRect.IsEmpty() )
902 				{
903 					if( !mpGraphics && !ImplGetGraphics() )
904 						return;
905 
906 					if( mbInitClipRegion )
907 						ImplInitClipRegion();
908 
909 					if( !mbOutputClipped )
910 					{
911 						PolyPolygon aClipPolyPoly( ImplLogicToDevicePixel( rPolyPoly ) );
912 
913 						// Gradienten werden ohne Umrandung gezeichnet
914 						if( mbLineColor || mbInitLineColor )
915 						{
916 							mpGraphics->SetLineColor();
917 							mbInitLineColor = sal_True;
918 						}
919 
920 						mbInitFillColor = sal_True;
921 
922 						// calculate step count if neccessary
923 						if ( !aGradient.GetSteps() )
924 							aGradient.SetSteps( GRADIENT_DEFAULT_STEPCOUNT );
925 
926                         if( aGradient.GetStyle() == GRADIENT_LINEAR || aGradient.GetStyle() == GRADIENT_AXIAL )
927     		            	ImplDrawLinearGradient( aRect, aGradient, sal_False, &aClipPolyPoly );
928                         else
929 				            ImplDrawComplexGradient( aRect, aGradient, sal_False, &aClipPolyPoly );
930 					}
931 				}
932 			}
933 		}
934 		else
935 		{
936 			const PolyPolygon	aPolyPoly( LogicToPixel( rPolyPoly ) );
937 			const Rectangle		aBoundRect( aPolyPoly.GetBoundRect() );
938 			Point aPoint;
939 			Rectangle			aDstRect( aPoint, GetOutputSizePixel() );
940 
941 			aDstRect.Intersection( aBoundRect );
942 
943 			if( OUTDEV_WINDOW == meOutDevType )
944 			{
945 				const Region aPaintRgn( ( (Window*) this )->GetPaintRegion() );
946 
947 				if( !aPaintRgn.IsNull() )
948 					aDstRect.Intersection( LogicToPixel( aPaintRgn ).GetBoundRect() );
949 			}
950 
951 			if( !aDstRect.IsEmpty() )
952 			{
953 				VirtualDevice*	pVDev;
954 				const Size		aDstSize( aDstRect.GetSize() );
955 
956                 if( HasAlpha() )
957                 {
958                     // #110958# Pay attention to alpha VDevs here, otherwise,
959                     // background will be wrong: Temp VDev has to have alpha, too.
960                     pVDev = new VirtualDevice( *this, 0, GetAlphaBitCount() > 1 ? 0 : 1 );
961                 }
962                 else
963                 {
964                     // nothing special here. Plain VDev
965                     pVDev = new VirtualDevice();
966                 }
967 
968 				if( pVDev->SetOutputSizePixel( aDstSize) )
969 				{
970 					MapMode			aVDevMap;
971 					const sal_Bool		bOldMap = mbMap;
972 
973 					EnableMapMode( sal_False );
974 
975 					pVDev->DrawOutDev( Point(), aDstSize, aDstRect.TopLeft(), aDstSize, *this );
976 					pVDev->SetRasterOp( ROP_XOR );
977 					aVDevMap.SetOrigin( Point( -aDstRect.Left(), -aDstRect.Top() ) );
978 					pVDev->SetMapMode( aVDevMap );
979 					pVDev->DrawGradient( aBoundRect, aGradient );
980 					pVDev->SetFillColor( COL_BLACK );
981 					pVDev->SetRasterOp( ROP_0 );
982 					pVDev->DrawPolyPolygon( aPolyPoly );
983 					pVDev->SetRasterOp( ROP_XOR );
984 					pVDev->DrawGradient( aBoundRect, aGradient );
985 					aVDevMap.SetOrigin( Point() );
986 					pVDev->SetMapMode( aVDevMap );
987 					DrawOutDev( aDstRect.TopLeft(), aDstSize, Point(), aDstSize, *pVDev );
988 
989 					EnableMapMode( bOldMap );
990 				}
991 
992                 delete pVDev;
993 			}
994 		}
995 	}
996 
997     if( mpAlphaVDev )
998         mpAlphaVDev->DrawPolyPolygon( rPolyPoly );
999 }
1000 
1001 // -----------------------------------------------------------------------
1002 
AddGradientActions(const Rectangle & rRect,const Gradient & rGradient,GDIMetaFile & rMtf)1003 void OutputDevice::AddGradientActions( const Rectangle& rRect, const Gradient& rGradient,
1004 									   GDIMetaFile& rMtf )
1005 {
1006 	DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
1007 	DBG_CHKOBJ( &rGradient, Gradient, NULL );
1008 
1009 	Rectangle aRect( rRect );
1010 
1011 	aRect.Justify();
1012 
1013 	// Wenn Rechteck leer ist, brauchen wir nichts machen
1014 	if ( !aRect.IsEmpty() )
1015 	{
1016 		Gradient		aGradient( rGradient );
1017 		GDIMetaFile*	pOldMtf = mpMetaFile;
1018 
1019 		mpMetaFile = &rMtf;
1020 		mpMetaFile->AddAction( new MetaPushAction( PUSH_ALL ) );
1021 		mpMetaFile->AddAction( new MetaISectRectClipRegionAction( aRect ) );
1022 		mpMetaFile->AddAction( new MetaLineColorAction( Color(), sal_False ) );
1023 
1024         // because we draw with no border line, we have to expand gradient
1025         // rect to avoid missing lines on the right and bottom edge
1026         aRect.Left()--;
1027         aRect.Top()--;
1028         aRect.Right()++;
1029         aRect.Bottom()++;
1030 
1031 		// calculate step count if neccessary
1032 		if ( !aGradient.GetSteps() )
1033 			aGradient.SetSteps( GRADIENT_DEFAULT_STEPCOUNT );
1034 
1035         if( aGradient.GetStyle() == GRADIENT_LINEAR || aGradient.GetStyle() == GRADIENT_AXIAL )
1036     		ImplDrawLinearGradient( aRect, aGradient, sal_True, NULL );
1037         else
1038 			ImplDrawComplexGradient( aRect, aGradient, sal_True, NULL );
1039 
1040 		mpMetaFile->AddAction( new MetaPopAction() );
1041 		mpMetaFile = pOldMtf;
1042 	}
1043 }
1044 
1045 // -----------------------------------------------------------------------
1046 
DrawHatch(const PolyPolygon & rPolyPoly,const Hatch & rHatch)1047 void OutputDevice::DrawHatch( const PolyPolygon& rPolyPoly, const Hatch& rHatch )
1048 {
1049 	DBG_TRACE( "OutputDevice::DrawHatch()" );
1050 	DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
1051 
1052 	Hatch aHatch( rHatch );
1053 
1054 	if ( mnDrawMode & ( DRAWMODE_BLACKLINE | DRAWMODE_WHITELINE |
1055 						DRAWMODE_GRAYLINE | DRAWMODE_GHOSTEDLINE |
1056                         DRAWMODE_SETTINGSLINE ) )
1057 	{
1058 		Color aColor( rHatch.GetColor() );
1059 
1060 		if ( mnDrawMode & DRAWMODE_BLACKLINE )
1061 			aColor = Color( COL_BLACK );
1062 		else if ( mnDrawMode & DRAWMODE_WHITELINE )
1063 			aColor = Color( COL_WHITE );
1064 		else if ( mnDrawMode & DRAWMODE_GRAYLINE )
1065 		{
1066 			const sal_uInt8 cLum = aColor.GetLuminance();
1067 			aColor = Color( cLum, cLum, cLum );
1068 		}
1069         else if( mnDrawMode & DRAWMODE_SETTINGSLINE )
1070         {
1071             aColor = GetSettings().GetStyleSettings().GetFontColor();
1072         }
1073 
1074 		if ( mnDrawMode & DRAWMODE_GHOSTEDLINE )
1075 		{
1076 			aColor = Color( ( aColor.GetRed() >> 1 ) | 0x80,
1077 							( aColor.GetGreen() >> 1 ) | 0x80,
1078 							( aColor.GetBlue() >> 1 ) | 0x80);
1079 		}
1080 
1081 		aHatch.SetColor( aColor );
1082 	}
1083 
1084 	if( mpMetaFile )
1085 		mpMetaFile->AddAction( new MetaHatchAction( rPolyPoly, aHatch ) );
1086 
1087 	if( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
1088 		return;
1089 
1090 	if( !mpGraphics && !ImplGetGraphics() )
1091 		return;
1092 
1093 	if( mbInitClipRegion )
1094 		ImplInitClipRegion();
1095 
1096 	if( mbOutputClipped )
1097 		return;
1098 
1099 	if( rPolyPoly.Count() )
1100 	{
1101 		PolyPolygon		aPolyPoly( LogicToPixel( rPolyPoly ) );
1102 		GDIMetaFile*	pOldMetaFile = mpMetaFile;
1103 		sal_Bool			bOldMap = mbMap;
1104 
1105 		aPolyPoly.Optimize( POLY_OPTIMIZE_NO_SAME );
1106         aHatch.SetDistance( ImplLogicWidthToDevicePixel( aHatch.GetDistance() ) );
1107 
1108 		mpMetaFile = NULL;
1109 		EnableMapMode( sal_False );
1110 		Push( PUSH_LINECOLOR );
1111 		SetLineColor( aHatch.GetColor() );
1112 		ImplInitLineColor();
1113 		ImplDrawHatch( aPolyPoly, aHatch, sal_False );
1114 		Pop();
1115 		EnableMapMode( bOldMap );
1116 		mpMetaFile = pOldMetaFile;
1117 	}
1118 
1119     if( mpAlphaVDev )
1120         mpAlphaVDev->DrawHatch( rPolyPoly, rHatch );
1121 }
1122 
1123 // -----------------------------------------------------------------------
1124 
AddHatchActions(const PolyPolygon & rPolyPoly,const Hatch & rHatch,GDIMetaFile & rMtf)1125 void OutputDevice::AddHatchActions( const PolyPolygon& rPolyPoly, const Hatch& rHatch,
1126 									GDIMetaFile& rMtf )
1127 {
1128 	DBG_CHKTHIS( OutputDevice, ImplDbgCheckOutputDevice );
1129 
1130 	PolyPolygon	aPolyPoly( rPolyPoly );
1131 	aPolyPoly.Optimize( POLY_OPTIMIZE_NO_SAME | POLY_OPTIMIZE_CLOSE );
1132 
1133 	if( aPolyPoly.Count() )
1134 	{
1135 		GDIMetaFile* pOldMtf = mpMetaFile;
1136 
1137 		mpMetaFile = &rMtf;
1138 		mpMetaFile->AddAction( new MetaPushAction( PUSH_ALL ) );
1139 		mpMetaFile->AddAction( new MetaLineColorAction( rHatch.GetColor(), sal_True ) );
1140 		ImplDrawHatch( aPolyPoly, rHatch, sal_True );
1141 		mpMetaFile->AddAction( new MetaPopAction() );
1142 		mpMetaFile = pOldMtf;
1143 	}
1144 }
1145 
1146 // -----------------------------------------------------------------------
1147 
ImplDrawHatch(const PolyPolygon & rPolyPoly,const Hatch & rHatch,sal_Bool bMtf)1148 void OutputDevice::ImplDrawHatch( const PolyPolygon& rPolyPoly, const Hatch& rHatch, sal_Bool bMtf )
1149 {
1150     if(rPolyPoly.Count())
1151     {
1152         // #115630# ImplDrawHatch does not work with beziers included in the polypolygon, take care of that
1153         bool bIsCurve(false);
1154 
1155         for(sal_uInt16 a(0); !bIsCurve && a < rPolyPoly.Count(); a++)
1156         {
1157             if(rPolyPoly[a].HasFlags())
1158             {
1159                 bIsCurve = true;
1160             }
1161         }
1162 
1163         if(bIsCurve)
1164         {
1165             OSL_ENSURE(false, "ImplDrawHatch does *not* support curves, falling back to AdaptiveSubdivide()...");
1166             PolyPolygon aPolyPoly;
1167 
1168             rPolyPoly.AdaptiveSubdivide(aPolyPoly);
1169             ImplDrawHatch(aPolyPoly, rHatch, bMtf);
1170         }
1171         else
1172         {
1173 	        Rectangle	aRect( rPolyPoly.GetBoundRect() );
1174 	        const long	nLogPixelWidth = ImplDevicePixelToLogicWidth( 1 );
1175 	        const long	nWidth = ImplDevicePixelToLogicWidth( Max( ImplLogicWidthToDevicePixel( rHatch.GetDistance() ), 3L ) );
1176 	        Point*		pPtBuffer = new Point[ HATCH_MAXPOINTS ];
1177 	        Point		aPt1, aPt2, aEndPt1;
1178 	        Size		aInc;
1179 
1180 	        // Single hatch
1181 	        aRect.Left() -= nLogPixelWidth; aRect.Top() -= nLogPixelWidth; aRect.Right() += nLogPixelWidth; aRect.Bottom() += nLogPixelWidth;
1182 	        ImplCalcHatchValues( aRect, nWidth, rHatch.GetAngle(), aPt1, aPt2, aInc, aEndPt1 );
1183 	        do
1184 	        {
1185 		        ImplDrawHatchLine( Line( aPt1, aPt2 ), rPolyPoly, pPtBuffer, bMtf );
1186 		        aPt1.X() += aInc.Width(); aPt1.Y() += aInc.Height();
1187 		        aPt2.X() += aInc.Width(); aPt2.Y() += aInc.Height();
1188 	        }
1189 	        while( ( aPt1.X() <= aEndPt1.X() ) && ( aPt1.Y() <= aEndPt1.Y() ) );
1190 
1191 	        if( ( rHatch.GetStyle() == HATCH_DOUBLE ) || ( rHatch.GetStyle() == HATCH_TRIPLE ) )
1192 	        {
1193 		        // Double hatch
1194 		        ImplCalcHatchValues( aRect, nWidth, rHatch.GetAngle() + 900, aPt1, aPt2, aInc, aEndPt1 );
1195 		        do
1196 		        {
1197 			        ImplDrawHatchLine( Line( aPt1, aPt2 ), rPolyPoly, pPtBuffer, bMtf );
1198 			        aPt1.X() += aInc.Width(); aPt1.Y() += aInc.Height();
1199 			        aPt2.X() += aInc.Width(); aPt2.Y() += aInc.Height();
1200 		        }
1201 		        while( ( aPt1.X() <= aEndPt1.X() ) && ( aPt1.Y() <= aEndPt1.Y() ) );
1202 
1203 		        if( rHatch.GetStyle() == HATCH_TRIPLE )
1204 		        {
1205 			        // Triple hatch
1206 			        ImplCalcHatchValues( aRect, nWidth, rHatch.GetAngle() + 450, aPt1, aPt2, aInc, aEndPt1 );
1207 			        do
1208 			        {
1209 				        ImplDrawHatchLine( Line( aPt1, aPt2 ), rPolyPoly, pPtBuffer, bMtf );
1210 				        aPt1.X() += aInc.Width(); aPt1.Y() += aInc.Height();
1211 				        aPt2.X() += aInc.Width(); aPt2.Y() += aInc.Height();
1212 			        }
1213 			        while( ( aPt1.X() <= aEndPt1.X() ) && ( aPt1.Y() <= aEndPt1.Y() ) );
1214 		        }
1215 	        }
1216 
1217 	        delete[] pPtBuffer;
1218         }
1219     }
1220 }
1221 
1222 // -----------------------------------------------------------------------
1223 
ImplCalcHatchValues(const Rectangle & rRect,long nDist,sal_uInt16 nAngle10,Point & rPt1,Point & rPt2,Size & rInc,Point & rEndPt1)1224 void OutputDevice::ImplCalcHatchValues( const Rectangle& rRect, long nDist, sal_uInt16 nAngle10,
1225 										Point& rPt1, Point& rPt2, Size& rInc, Point& rEndPt1 )
1226 {
1227 	Point	aRef;
1228 	long	nAngle = nAngle10 % 1800;
1229 	long	nOffset = 0;
1230 
1231 	if( nAngle > 900 )
1232 		nAngle -= 1800;
1233 
1234 	aRef = ( !IsRefPoint() ? rRect.TopLeft() : GetRefPoint() );
1235 
1236 	if( 0 == nAngle )
1237 	{
1238 		rInc = Size( 0, nDist );
1239 		rPt1 = rRect.TopLeft();
1240 		rPt2 = rRect.TopRight();
1241 		rEndPt1 = rRect.BottomLeft();
1242 
1243 		if( aRef.Y() <= rRect.Top() )
1244 			nOffset = ( ( rRect.Top() - aRef.Y() ) % nDist );
1245 		else
1246 			nOffset = ( nDist - ( ( aRef.Y() - rRect.Top() ) % nDist ) );
1247 
1248 		rPt1.Y() -= nOffset;
1249 		rPt2.Y() -= nOffset;
1250 	}
1251 	else if( 900 == nAngle )
1252 	{
1253 		rInc = Size( nDist, 0 );
1254 		rPt1 = rRect.TopLeft();
1255 		rPt2 = rRect.BottomLeft();
1256 		rEndPt1 = rRect.TopRight();
1257 
1258 		if( aRef.X() <= rRect.Left() )
1259 			nOffset = ( rRect.Left() - aRef.X() ) % nDist;
1260 		else
1261 			nOffset = nDist - ( ( aRef.X() - rRect.Left() ) % nDist );
1262 
1263 		rPt1.X() -= nOffset;
1264 		rPt2.X() -= nOffset;
1265 	}
1266 	else if( nAngle >= -450 && nAngle <= 450 )
1267 	{
1268 		const double	fAngle = F_PI1800 * labs( nAngle );
1269 		const double	fTan = tan( fAngle );
1270 		const long		nYOff = FRound( ( rRect.Right() - rRect.Left() ) * fTan );
1271 		long			nPY;
1272 
1273 		rInc = Size( 0, nDist = FRound( nDist / cos( fAngle ) ) );
1274 
1275 		if( nAngle > 0 )
1276 		{
1277 			rPt1 = rRect.TopLeft();
1278 			rPt2 = Point( rRect.Right(), rRect.Top() - nYOff );
1279 			rEndPt1 = Point( rRect.Left(), rRect.Bottom() + nYOff );
1280 			nPY = FRound( aRef.Y() - ( ( rPt1.X() - aRef.X() ) * fTan ) );
1281 		}
1282 		else
1283 		{
1284 			rPt1 = rRect.TopRight();
1285 			rPt2 = Point( rRect.Left(), rRect.Top() - nYOff );
1286 			rEndPt1 = Point( rRect.Right(), rRect.Bottom() + nYOff );
1287 			nPY = FRound( aRef.Y() + ( ( rPt1.X() - aRef.X() ) * fTan ) );
1288 		}
1289 
1290 		if( nPY <= rPt1.Y() )
1291 			nOffset = ( rPt1.Y() - nPY ) % nDist;
1292 		else
1293 			nOffset = nDist - ( ( nPY - rPt1.Y() ) % nDist );
1294 
1295 		rPt1.Y() -= nOffset;
1296 		rPt2.Y() -= nOffset;
1297 	}
1298 	else
1299 	{
1300 		const double fAngle = F_PI1800 * labs( nAngle );
1301 		const double fTan = tan( fAngle );
1302 		const long	 nXOff = FRound( ( rRect.Bottom() - rRect.Top() ) / fTan );
1303 		long		 nPX;
1304 
1305 		rInc = Size( nDist = FRound( nDist / sin( fAngle ) ), 0 );
1306 
1307 		if( nAngle > 0 )
1308 		{
1309 			rPt1 = rRect.TopLeft();
1310 			rPt2 = Point( rRect.Left() - nXOff, rRect.Bottom() );
1311 			rEndPt1 = Point( rRect.Right() + nXOff, rRect.Top() );
1312 			nPX = FRound( aRef.X() - ( ( rPt1.Y() - aRef.Y() ) / fTan ) );
1313 		}
1314 		else
1315 		{
1316 			rPt1 = rRect.BottomLeft();
1317 			rPt2 = Point( rRect.Left() - nXOff, rRect.Top() );
1318 			rEndPt1 = Point( rRect.Right() + nXOff, rRect.Bottom() );
1319 			nPX = FRound( aRef.X() + ( ( rPt1.Y() - aRef.Y() ) / fTan ) );
1320 		}
1321 
1322 		if( nPX <= rPt1.X() )
1323 			nOffset = ( rPt1.X() - nPX ) % nDist;
1324 		else
1325 			nOffset = nDist - ( ( nPX - rPt1.X() ) % nDist );
1326 
1327 		rPt1.X() -= nOffset;
1328 		rPt2.X() -= nOffset;
1329 	}
1330 }
1331 
1332 // ------------------------------------------------------------------------
1333 
ImplDrawHatchLine(const Line & rLine,const PolyPolygon & rPolyPoly,Point * pPtBuffer,sal_Bool bMtf)1334 void OutputDevice::ImplDrawHatchLine( const Line& rLine, const PolyPolygon& rPolyPoly,
1335 									  Point* pPtBuffer, sal_Bool bMtf )
1336 {
1337 	double	fX, fY;
1338 	long	nAdd, nPCounter = 0;
1339 
1340 	for( long nPoly = 0, nPolyCount = rPolyPoly.Count(); nPoly < nPolyCount; nPoly++ )
1341 	{
1342 		const Polygon& rPoly = rPolyPoly[ (sal_uInt16) nPoly ];
1343 
1344 		if( rPoly.GetSize() > 1 )
1345 		{
1346 			Line	aCurSegment( rPoly[ 0 ], Point() );
1347 
1348 			for( long i = 1, nCount = rPoly.GetSize(); i <= nCount; i++ )
1349 			{
1350 				aCurSegment.SetEnd( rPoly[ (sal_uInt16)( i % nCount ) ] );
1351 				nAdd = 0;
1352 
1353 				if( rLine.Intersection( aCurSegment, fX, fY ) )
1354 				{
1355 					if( ( fabs( fX - aCurSegment.GetStart().X() ) <= 0.0000001 ) &&
1356 						( fabs( fY - aCurSegment.GetStart().Y() ) <= 0.0000001 ) )
1357 					{
1358 						const Line		aPrevSegment( rPoly[ (sal_uInt16)( ( i > 1 ) ? ( i - 2 ) : ( nCount - 1 ) ) ], aCurSegment.GetStart() );
1359 						const double	fPrevDistance = rLine.GetDistance( aPrevSegment.GetStart() );
1360 						const double	fCurDistance = rLine.GetDistance( aCurSegment.GetEnd() );
1361 
1362 						if( ( fPrevDistance <= 0.0 && fCurDistance > 0.0 ) ||
1363 							( fPrevDistance > 0.0 && fCurDistance < 0.0 ) )
1364 						{
1365 							nAdd = 1;
1366 						}
1367 					}
1368 					else if( ( fabs( fX - aCurSegment.GetEnd().X() ) <= 0.0000001 ) &&
1369 							 ( fabs( fY - aCurSegment.GetEnd().Y() ) <= 0.0000001 ) )
1370 					{
1371 						const Line aNextSegment( aCurSegment.GetEnd(), rPoly[ (sal_uInt16)( ( i + 1 ) % nCount ) ] );
1372 
1373 						if( ( fabs( rLine.GetDistance( aNextSegment.GetEnd() ) ) <= 0.0000001 ) &&
1374 							( rLine.GetDistance( aCurSegment.GetStart() ) > 0.0 ) )
1375 						{
1376 							nAdd = 1;
1377 						}
1378 					}
1379 					else
1380 						nAdd = 1;
1381 
1382 					if( nAdd )
1383 						pPtBuffer[ nPCounter++ ] = Point( FRound( fX ), FRound( fY ) );
1384 				}
1385 
1386 				aCurSegment.SetStart( aCurSegment.GetEnd() );
1387 			}
1388 		}
1389 	}
1390 
1391 	if( nPCounter > 1 )
1392 	{
1393 		qsort( pPtBuffer, nPCounter, sizeof( Point ), ImplHatchCmpFnc );
1394 
1395 		if( nPCounter & 1 )
1396 			nPCounter--;
1397 
1398 		if( bMtf )
1399 		{
1400 			for( long i = 0; i < nPCounter; i += 2 )
1401 				mpMetaFile->AddAction( new MetaLineAction( pPtBuffer[ i ], pPtBuffer[ i + 1 ] ) );
1402 		}
1403 		else
1404 		{
1405 			for( long i = 0; i < nPCounter; i += 2 )
1406 			{
1407                 if( mpPDFWriter )
1408                 {
1409                     mpPDFWriter->drawLine( pPtBuffer[ i ], pPtBuffer[ i+1 ] );
1410                 }
1411                 else
1412                 {
1413                     const Point aPt1( ImplLogicToDevicePixel( pPtBuffer[ i ] ) );
1414                     const Point aPt2( ImplLogicToDevicePixel( pPtBuffer[ i + 1 ] ) );
1415                     mpGraphics->DrawLine( aPt1.X(), aPt1.Y(), aPt2.X(), aPt2.Y(), this );
1416                 }
1417 			}
1418 		}
1419 	}
1420 }
1421