Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <canvas/debug.hxx>
21 : #include <tools/diagnose_ex.h>
22 :
23 : #include <rtl/math.hxx>
24 :
25 : #include <com/sun/star/rendering/CompositeOperation.hpp>
26 : #include <com/sun/star/util/Endianness.hpp>
27 : #include <com/sun/star/rendering/TextDirection.hpp>
28 : #include <com/sun/star/rendering/TexturingMode.hpp>
29 : #include <com/sun/star/rendering/PathCapType.hpp>
30 : #include <com/sun/star/rendering/PathJoinType.hpp>
31 : #include <com/sun/star/drawing/LineCap.hpp>
32 :
33 : #include <tools/poly.hxx>
34 : #include <vcl/window.hxx>
35 : #include <vcl/bitmapex.hxx>
36 : #include <vcl/bmpacc.hxx>
37 : #include <vcl/canvastools.hxx>
38 :
39 : #include <basegfx/matrix/b2dhommatrix.hxx>
40 : #include <basegfx/range/b2drectangle.hxx>
41 : #include <basegfx/point/b2dpoint.hxx>
42 : #include <basegfx/vector/b2dsize.hxx>
43 : #include <basegfx/polygon/b2dpolygon.hxx>
44 : #include <basegfx/polygon/b2dpolygontools.hxx>
45 : #include <basegfx/polygon/b2dpolypolygontools.hxx>
46 : #include <basegfx/polygon/b2dlinegeometry.hxx>
47 : #include <basegfx/tools/canvastools.hxx>
48 : #include <basegfx/numeric/ftools.hxx>
49 :
50 : #include <utility>
51 :
52 : #include <comphelper/sequence.hxx>
53 : #include <canvas/canvastools.hxx>
54 :
55 : #include "textlayout.hxx"
56 : #include "canvashelper.hxx"
57 : #include "canvasbitmap.hxx"
58 : #include "impltools.hxx"
59 : #include "canvasfont.hxx"
60 :
61 :
62 : using namespace ::com::sun::star;
63 :
64 : namespace vclcanvas
65 : {
66 : namespace
67 : {
68 0 : basegfx::B2DLineJoin b2DJoineFromJoin( sal_Int8 nJoinType )
69 : {
70 0 : switch( nJoinType )
71 : {
72 : case rendering::PathJoinType::NONE:
73 0 : return basegfx::B2DLINEJOIN_NONE;
74 :
75 : case rendering::PathJoinType::MITER:
76 0 : return basegfx::B2DLINEJOIN_MITER;
77 :
78 : case rendering::PathJoinType::ROUND:
79 0 : return basegfx::B2DLINEJOIN_ROUND;
80 :
81 : case rendering::PathJoinType::BEVEL:
82 0 : return basegfx::B2DLINEJOIN_BEVEL;
83 :
84 : default:
85 0 : ENSURE_OR_THROW( false,
86 : "b2DJoineFromJoin(): Unexpected join type" );
87 : }
88 :
89 : return basegfx::B2DLINEJOIN_NONE;
90 : }
91 :
92 0 : drawing::LineCap unoCapeFromCap( sal_Int8 nCapType)
93 : {
94 0 : switch ( nCapType)
95 : {
96 : case rendering::PathCapType::BUTT:
97 0 : return drawing::LineCap_BUTT;
98 :
99 : case rendering::PathCapType::ROUND:
100 0 : return drawing::LineCap_ROUND;
101 :
102 : case rendering::PathCapType::SQUARE:
103 0 : return drawing::LineCap_SQUARE;
104 :
105 : default:
106 0 : ENSURE_OR_THROW( false,
107 : "unoCapeFromCap(): Unexpected cap type" );
108 : }
109 : return drawing::LineCap_BUTT;
110 : }
111 : }
112 :
113 0 : CanvasHelper::CanvasHelper() :
114 : mpDevice(),
115 : mpProtectedOutDev(),
116 : mpOutDev(),
117 : mp2ndOutDev(),
118 0 : mbHaveAlpha( false )
119 : {
120 0 : }
121 :
122 0 : void CanvasHelper::disposing()
123 : {
124 0 : mpDevice = NULL;
125 0 : mpProtectedOutDev.reset();
126 0 : mpOutDev.reset();
127 0 : mp2ndOutDev.reset();
128 0 : }
129 :
130 0 : void CanvasHelper::init( rendering::XGraphicDevice& rDevice,
131 : const OutDevProviderSharedPtr& rOutDev,
132 : bool bProtect,
133 : bool bHaveAlpha )
134 : {
135 : // cast away const, need to change refcount (as this is
136 : // ~invisible to client code, still logically const)
137 0 : mpDevice = &rDevice;
138 0 : mbHaveAlpha = bHaveAlpha;
139 :
140 0 : setOutDev( rOutDev, bProtect );
141 0 : }
142 :
143 0 : void CanvasHelper::setOutDev( const OutDevProviderSharedPtr& rOutDev,
144 : bool bProtect )
145 : {
146 0 : if( bProtect )
147 0 : mpProtectedOutDev = rOutDev;
148 : else
149 0 : mpProtectedOutDev.reset();
150 :
151 0 : mpOutDev = rOutDev;
152 0 : }
153 :
154 0 : void CanvasHelper::setBackgroundOutDev( const OutDevProviderSharedPtr& rOutDev )
155 : {
156 0 : mp2ndOutDev = rOutDev;
157 0 : mp2ndOutDev->getOutDev().EnableMapMode( false );
158 0 : mp2ndOutDev->getOutDev().SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
159 0 : }
160 :
161 0 : void CanvasHelper::clear()
162 : {
163 : // are we disposed?
164 0 : if( mpOutDev )
165 : {
166 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
167 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
168 :
169 0 : rOutDev.EnableMapMode( false );
170 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
171 0 : rOutDev.SetLineColor( COL_WHITE );
172 0 : rOutDev.SetFillColor( COL_WHITE );
173 0 : rOutDev.SetClipRegion();
174 : rOutDev.DrawRect( Rectangle( Point(),
175 0 : rOutDev.GetOutputSizePixel()) );
176 :
177 0 : if( mp2ndOutDev )
178 : {
179 0 : OutputDevice& rOutDev2( mp2ndOutDev->getOutDev() );
180 :
181 0 : rOutDev2.SetDrawMode( DRAWMODE_DEFAULT );
182 0 : rOutDev2.EnableMapMode( false );
183 0 : rOutDev2.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
184 0 : rOutDev2.SetLineColor( COL_WHITE );
185 0 : rOutDev2.SetFillColor( COL_WHITE );
186 0 : rOutDev2.SetClipRegion();
187 : rOutDev2.DrawRect( Rectangle( Point(),
188 0 : rOutDev2.GetOutputSizePixel()) );
189 : rOutDev2.SetDrawMode( DRAWMODE_BLACKLINE | DRAWMODE_BLACKFILL | DRAWMODE_BLACKTEXT |
190 0 : DRAWMODE_BLACKGRADIENT | DRAWMODE_BLACKBITMAP );
191 0 : }
192 : }
193 0 : }
194 :
195 0 : void CanvasHelper::drawPoint( const rendering::XCanvas* ,
196 : const geometry::RealPoint2D& aPoint,
197 : const rendering::ViewState& viewState,
198 : const rendering::RenderState& renderState )
199 : {
200 : // are we disposed?
201 0 : if( mpOutDev )
202 : {
203 : // nope, render
204 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
205 0 : setupOutDevState( viewState, renderState, LINE_COLOR );
206 :
207 : const Point aOutPoint( tools::mapRealPoint2D( aPoint,
208 0 : viewState, renderState ) );
209 : // TODO(F1): alpha
210 0 : mpOutDev->getOutDev().DrawPixel( aOutPoint );
211 :
212 0 : if( mp2ndOutDev )
213 0 : mp2ndOutDev->getOutDev().DrawPixel( aOutPoint );
214 : }
215 0 : }
216 :
217 0 : void CanvasHelper::drawLine( const rendering::XCanvas* ,
218 : const geometry::RealPoint2D& aStartRealPoint2D,
219 : const geometry::RealPoint2D& aEndRealPoint2D,
220 : const rendering::ViewState& viewState,
221 : const rendering::RenderState& renderState )
222 : {
223 : // are we disposed?
224 0 : if( mpOutDev )
225 : {
226 : // nope, render
227 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
228 0 : setupOutDevState( viewState, renderState, LINE_COLOR );
229 :
230 : const Point aStartPoint( tools::mapRealPoint2D( aStartRealPoint2D,
231 0 : viewState, renderState ) );
232 : const Point aEndPoint( tools::mapRealPoint2D( aEndRealPoint2D,
233 0 : viewState, renderState ) );
234 : // TODO(F2): alpha
235 0 : mpOutDev->getOutDev().DrawLine( aStartPoint, aEndPoint );
236 :
237 0 : if( mp2ndOutDev )
238 0 : mp2ndOutDev->getOutDev().DrawLine( aStartPoint, aEndPoint );
239 : }
240 0 : }
241 :
242 0 : void CanvasHelper::drawBezier( const rendering::XCanvas* ,
243 : const geometry::RealBezierSegment2D& aBezierSegment,
244 : const geometry::RealPoint2D& _aEndPoint,
245 : const rendering::ViewState& viewState,
246 : const rendering::RenderState& renderState )
247 : {
248 0 : if( mpOutDev )
249 : {
250 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
251 0 : setupOutDevState( viewState, renderState, LINE_COLOR );
252 :
253 : const Point& rStartPoint( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.Px,
254 : aBezierSegment.Py),
255 0 : viewState, renderState ) );
256 : const Point& rCtrlPoint1( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C1x,
257 : aBezierSegment.C1y),
258 0 : viewState, renderState ) );
259 : const Point& rCtrlPoint2( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C2x,
260 : aBezierSegment.C2y),
261 0 : viewState, renderState ) );
262 : const Point& rEndPoint( tools::mapRealPoint2D( _aEndPoint,
263 0 : viewState, renderState ) );
264 :
265 0 : ::Polygon aPoly(4);
266 0 : aPoly.SetPoint( rStartPoint, 0 );
267 0 : aPoly.SetFlags( 0, POLY_NORMAL );
268 0 : aPoly.SetPoint( rCtrlPoint1, 1 );
269 0 : aPoly.SetFlags( 1, POLY_CONTROL );
270 0 : aPoly.SetPoint( rCtrlPoint2, 2 );
271 0 : aPoly.SetFlags( 2, POLY_CONTROL );
272 0 : aPoly.SetPoint( rEndPoint, 3 );
273 0 : aPoly.SetFlags( 3, POLY_NORMAL );
274 :
275 : // TODO(F2): alpha
276 0 : mpOutDev->getOutDev().DrawPolygon( aPoly );
277 0 : if( mp2ndOutDev )
278 0 : mp2ndOutDev->getOutDev().DrawPolygon( aPoly );
279 : }
280 0 : }
281 :
282 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawPolyPolygon( const rendering::XCanvas* ,
283 : const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
284 : const rendering::ViewState& viewState,
285 : const rendering::RenderState& renderState )
286 : {
287 0 : ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
288 : "polygon is NULL");
289 :
290 0 : if( mpOutDev )
291 : {
292 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
293 0 : setupOutDevState( viewState, renderState, LINE_COLOR );
294 :
295 : const ::basegfx::B2DPolyPolygon& rPolyPoly(
296 0 : ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
297 0 : const ::tools::PolyPolygon aPolyPoly( tools::mapPolyPolygon( rPolyPoly, viewState, renderState ) );
298 :
299 0 : if( rPolyPoly.isClosed() )
300 : {
301 0 : mpOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
302 :
303 0 : if( mp2ndOutDev )
304 0 : mp2ndOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
305 : }
306 : else
307 : {
308 : // mixed open/closed state. Cannot render open polygon
309 : // via DrawPolyPolygon(), since that implicitley
310 : // closed every polygon. OTOH, no need to distinguish
311 : // further and render closed polygons via
312 : // DrawPolygon(), and open ones via DrawPolyLine():
313 : // closed polygons will simply already contain the
314 : // closing segment.
315 0 : sal_uInt16 nSize( aPolyPoly.Count() );
316 :
317 0 : for( sal_uInt16 i=0; i<nSize; ++i )
318 : {
319 0 : mpOutDev->getOutDev().DrawPolyLine( aPolyPoly[i] );
320 :
321 0 : if( mp2ndOutDev )
322 0 : mp2ndOutDev->getOutDev().DrawPolyLine( aPolyPoly[i] );
323 : }
324 0 : }
325 : }
326 :
327 : // TODO(P1): Provide caching here.
328 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
329 : }
330 :
331 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokePolyPolygon( const rendering::XCanvas* ,
332 : const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
333 : const rendering::ViewState& viewState,
334 : const rendering::RenderState& renderState,
335 : const rendering::StrokeAttributes& strokeAttributes )
336 : {
337 0 : ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
338 : "polygon is NULL");
339 :
340 0 : if( mpOutDev )
341 : {
342 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
343 :
344 0 : ::basegfx::B2DHomMatrix aMatrix;
345 0 : ::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
346 :
347 : ::basegfx::B2DSize aLinePixelSize(strokeAttributes.StrokeWidth,
348 0 : strokeAttributes.StrokeWidth);
349 0 : aLinePixelSize *= aMatrix;
350 :
351 : ::basegfx::B2DPolyPolygon aPolyPoly(
352 0 : ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
353 :
354 0 : if( aPolyPoly.areControlPointsUsed() )
355 : {
356 : // AW: Not needed for ApplyLineDashing anymore; should be removed
357 0 : aPolyPoly = ::basegfx::tools::adaptiveSubdivideByAngle(aPolyPoly);
358 : }
359 :
360 : // apply dashing, if any
361 0 : if( strokeAttributes.DashArray.getLength() )
362 : {
363 : const ::std::vector<double>& aDashArray(
364 0 : ::comphelper::sequenceToContainer< ::std::vector<double> >(strokeAttributes.DashArray) );
365 :
366 0 : ::basegfx::B2DPolyPolygon aDashedPolyPoly;
367 :
368 0 : for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
369 : {
370 : // AW: new interface; You may also get gaps in the same run now
371 0 : basegfx::tools::applyLineDashing(aPolyPoly.getB2DPolygon(i), aDashArray, &aDashedPolyPoly);
372 : //aDashedPolyPoly.append(
373 : // ::basegfx::tools::applyLineDashing( aPolyPoly.getB2DPolygon(i),
374 : // aDashArray ) );
375 : }
376 :
377 0 : aPolyPoly = aDashedPolyPoly;
378 : }
379 :
380 0 : ::basegfx::B2DPolyPolygon aStrokedPolyPoly;
381 0 : if( aLinePixelSize.getLength() < 1.42 )
382 : {
383 : // line width < 1.0 in device pixel, thus, output as a
384 : // simple hairline poly-polygon
385 0 : setupOutDevState( viewState, renderState, LINE_COLOR );
386 :
387 0 : aStrokedPolyPoly = aPolyPoly;
388 : }
389 : else
390 : {
391 : // render as a 'thick' line
392 0 : setupOutDevState( viewState, renderState, FILL_COLOR );
393 :
394 0 : for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
395 : {
396 : // TODO(F2): Use MiterLimit from StrokeAttributes,
397 : // need to convert it here to angle.
398 :
399 : // TODO(F2): Also use Cap settings from
400 : // StrokeAttributes, the
401 : // createAreaGeometryForLineStartEnd() method does not
402 : // seem to fit very well here
403 :
404 : // AW: New interface, will create bezier polygons now
405 : aStrokedPolyPoly.append(basegfx::tools::createAreaGeometry(
406 : aPolyPoly.getB2DPolygon(i),
407 : strokeAttributes.StrokeWidth*0.5,
408 : b2DJoineFromJoin(strokeAttributes.JoinType),
409 : unoCapeFromCap(strokeAttributes.StartCapType)
410 0 : ));
411 : //aStrokedPolyPoly.append(
412 : // ::basegfx::tools::createAreaGeometryForPolygon( aPolyPoly.getB2DPolygon(i),
413 : // strokeAttributes.StrokeWidth*0.5,
414 : // b2DJoineFromJoin(strokeAttributes.JoinType) ) );
415 : }
416 : }
417 :
418 : // transform only _now_, all the StrokeAttributes are in
419 : // user coordinates.
420 0 : aStrokedPolyPoly.transform( aMatrix );
421 :
422 0 : const ::tools::PolyPolygon aVCLPolyPoly( aStrokedPolyPoly );
423 :
424 : // TODO(F2): When using alpha here, must handle that via
425 : // temporary surface or somesuch.
426 :
427 : // Note: the generated stroke poly-polygon is NOT free of
428 : // self-intersections. Therefore, if we would render it
429 : // via OutDev::DrawPolyPolygon(), on/off fill would
430 : // generate off areas on those self-intersections.
431 0 : sal_uInt16 nSize( aVCLPolyPoly.Count() );
432 :
433 0 : for( sal_uInt16 i=0; i<nSize; ++i )
434 : {
435 0 : if( aStrokedPolyPoly.getB2DPolygon( i ).isClosed() ) {
436 0 : mpOutDev->getOutDev().DrawPolygon( aVCLPolyPoly[i] );
437 0 : if( mp2ndOutDev )
438 0 : mp2ndOutDev->getOutDev().DrawPolygon( aVCLPolyPoly[i] );
439 : } else {
440 0 : const sal_uInt16 nPolySize = aVCLPolyPoly[i].GetSize();
441 0 : if( nPolySize ) {
442 0 : Point rPrevPoint = aVCLPolyPoly[i].GetPoint( 0 );
443 0 : Point rPoint;
444 :
445 0 : for( sal_uInt16 j=1; j<nPolySize; j++ ) {
446 0 : rPoint = aVCLPolyPoly[i].GetPoint( j );
447 0 : mpOutDev->getOutDev().DrawLine( rPrevPoint, rPoint );
448 0 : if( mp2ndOutDev )
449 0 : mp2ndOutDev->getOutDev().DrawLine( rPrevPoint, rPoint );
450 0 : rPrevPoint = rPoint;
451 : }
452 : }
453 : }
454 0 : }
455 : }
456 :
457 : // TODO(P1): Provide caching here.
458 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
459 : }
460 :
461 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTexturedPolyPolygon( const rendering::XCanvas* ,
462 : const uno::Reference< rendering::XPolyPolygon2D >& ,
463 : const rendering::ViewState& ,
464 : const rendering::RenderState& ,
465 : const uno::Sequence< rendering::Texture >& ,
466 : const rendering::StrokeAttributes& )
467 : {
468 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
469 : }
470 :
471 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTextureMappedPolyPolygon( const rendering::XCanvas* ,
472 : const uno::Reference< rendering::XPolyPolygon2D >& ,
473 : const rendering::ViewState& ,
474 : const rendering::RenderState& ,
475 : const uno::Sequence< rendering::Texture >& ,
476 : const uno::Reference< geometry::XMapping2D >& ,
477 : const rendering::StrokeAttributes& )
478 : {
479 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
480 : }
481 :
482 0 : uno::Reference< rendering::XPolyPolygon2D > CanvasHelper::queryStrokeShapes( const rendering::XCanvas* ,
483 : const uno::Reference< rendering::XPolyPolygon2D >& ,
484 : const rendering::ViewState& ,
485 : const rendering::RenderState& ,
486 : const rendering::StrokeAttributes& )
487 : {
488 0 : return uno::Reference< rendering::XPolyPolygon2D >(NULL);
489 : }
490 :
491 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillPolyPolygon( const rendering::XCanvas* ,
492 : const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
493 : const rendering::ViewState& viewState,
494 : const rendering::RenderState& renderState )
495 : {
496 0 : ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
497 : "polygon is NULL");
498 :
499 0 : if( mpOutDev )
500 : {
501 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
502 :
503 0 : const int nTransparency( setupOutDevState( viewState, renderState, FILL_COLOR ) );
504 : ::basegfx::B2DPolyPolygon aB2DPolyPoly(
505 0 : ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
506 0 : aB2DPolyPoly.setClosed(true); // ensure closed poly, otherwise VCL does not fill
507 : const ::tools::PolyPolygon aPolyPoly( tools::mapPolyPolygon(
508 : aB2DPolyPoly,
509 0 : viewState, renderState ) );
510 0 : const bool bSourceAlpha( renderState.CompositeOperation == rendering::CompositeOperation::SOURCE );
511 0 : if( !nTransparency || bSourceAlpha )
512 : {
513 0 : mpOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
514 : }
515 : else
516 : {
517 0 : const int nTransPercent( (nTransparency * 100 + 128) / 255 ); // normal rounding, no truncation here
518 0 : mpOutDev->getOutDev().DrawTransparent( aPolyPoly, (sal_uInt16)nTransPercent );
519 : }
520 :
521 0 : if( mp2ndOutDev )
522 : {
523 : // HACK. Normally, CanvasHelper does not care about
524 : // actually what mp2ndOutDev is... well, here we do &
525 : // assume a 1bpp target - everything beyond 97%
526 : // transparency is fully transparent
527 0 : if( nTransparency < 253 )
528 : {
529 0 : mp2ndOutDev->getOutDev().SetFillColor( COL_BLACK );
530 0 : mp2ndOutDev->getOutDev().DrawPolyPolygon( aPolyPoly );
531 : }
532 0 : }
533 : }
534 :
535 : // TODO(P1): Provide caching here.
536 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
537 : }
538 :
539 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTextureMappedPolyPolygon( const rendering::XCanvas* ,
540 : const uno::Reference< rendering::XPolyPolygon2D >& ,
541 : const rendering::ViewState& ,
542 : const rendering::RenderState& ,
543 : const uno::Sequence< rendering::Texture >& ,
544 : const uno::Reference< geometry::XMapping2D >& )
545 : {
546 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
547 : }
548 :
549 0 : uno::Reference< rendering::XCanvasFont > CanvasHelper::createFont( const rendering::XCanvas* ,
550 : const rendering::FontRequest& fontRequest,
551 : const uno::Sequence< beans::PropertyValue >& extraFontProperties,
552 : const geometry::Matrix2D& fontMatrix )
553 : {
554 0 : if( mpOutDev && mpDevice )
555 : {
556 : // TODO(F2): font properties and font matrix
557 : return uno::Reference< rendering::XCanvasFont >(
558 : new CanvasFont(fontRequest, extraFontProperties, fontMatrix,
559 0 : *mpDevice, mpOutDev) );
560 : }
561 :
562 0 : return uno::Reference< rendering::XCanvasFont >();
563 : }
564 :
565 0 : uno::Sequence< rendering::FontInfo > CanvasHelper::queryAvailableFonts( const rendering::XCanvas* ,
566 : const rendering::FontInfo& ,
567 : const uno::Sequence< beans::PropertyValue >& )
568 : {
569 : // TODO(F2)
570 0 : return uno::Sequence< rendering::FontInfo >();
571 : }
572 :
573 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawText( const rendering::XCanvas* ,
574 : const rendering::StringContext& text,
575 : const uno::Reference< rendering::XCanvasFont >& xFont,
576 : const rendering::ViewState& viewState,
577 : const rendering::RenderState& renderState,
578 : sal_Int8 textDirection )
579 : {
580 0 : ENSURE_ARG_OR_THROW( xFont.is(),
581 : "font is NULL");
582 :
583 0 : if( mpOutDev )
584 : {
585 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
586 :
587 0 : ::Point aOutpos;
588 0 : if( !setupTextOutput( aOutpos, viewState, renderState, xFont ) )
589 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL); // no output necessary
590 :
591 : // change text direction and layout mode
592 0 : ComplexTextLayoutMode nLayoutMode(TEXT_LAYOUT_DEFAULT);
593 0 : switch( textDirection )
594 : {
595 : case rendering::TextDirection::WEAK_LEFT_TO_RIGHT:
596 : // FALLTHROUGH intended
597 : case rendering::TextDirection::STRONG_LEFT_TO_RIGHT:
598 0 : nLayoutMode |= TEXT_LAYOUT_BIDI_STRONG;
599 0 : nLayoutMode |= TEXT_LAYOUT_TEXTORIGIN_LEFT;
600 0 : break;
601 :
602 : case rendering::TextDirection::WEAK_RIGHT_TO_LEFT:
603 0 : nLayoutMode |= TEXT_LAYOUT_BIDI_RTL;
604 : // FALLTHROUGH intended
605 : case rendering::TextDirection::STRONG_RIGHT_TO_LEFT:
606 0 : nLayoutMode |= TEXT_LAYOUT_BIDI_RTL | TEXT_LAYOUT_BIDI_STRONG;
607 0 : nLayoutMode |= TEXT_LAYOUT_TEXTORIGIN_RIGHT;
608 0 : break;
609 : }
610 :
611 : // TODO(F2): alpha
612 0 : mpOutDev->getOutDev().SetLayoutMode( nLayoutMode );
613 0 : mpOutDev->getOutDev().DrawText( aOutpos,
614 : text.Text,
615 0 : ::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
616 0 : ::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
617 :
618 0 : if( mp2ndOutDev )
619 : {
620 0 : mp2ndOutDev->getOutDev().SetLayoutMode( nLayoutMode );
621 0 : mp2ndOutDev->getOutDev().DrawText( aOutpos,
622 : text.Text,
623 0 : ::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
624 0 : ::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
625 0 : }
626 : }
627 :
628 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
629 : }
630 :
631 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawTextLayout( const rendering::XCanvas* ,
632 : const uno::Reference< rendering::XTextLayout >& xLayoutedText,
633 : const rendering::ViewState& viewState,
634 : const rendering::RenderState& renderState )
635 : {
636 0 : ENSURE_ARG_OR_THROW( xLayoutedText.is(),
637 : "layout is NULL");
638 :
639 0 : TextLayout* pTextLayout = dynamic_cast< TextLayout* >( xLayoutedText.get() );
640 :
641 0 : if( pTextLayout )
642 : {
643 0 : if( mpOutDev )
644 : {
645 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
646 :
647 : // TODO(T3): Race condition. We're taking the font
648 : // from xLayoutedText, and then calling draw() at it,
649 : // without exclusive access. Move setupTextOutput(),
650 : // e.g. to impltools?
651 :
652 0 : ::Point aOutpos;
653 0 : if( !setupTextOutput( aOutpos, viewState, renderState, xLayoutedText->getFont() ) )
654 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL); // no output necessary
655 :
656 : // TODO(F2): What about the offset scalings?
657 : // TODO(F2): alpha
658 0 : pTextLayout->draw( mpOutDev->getOutDev(), aOutpos, viewState, renderState );
659 :
660 0 : if( mp2ndOutDev )
661 0 : pTextLayout->draw( mp2ndOutDev->getOutDev(), aOutpos, viewState, renderState );
662 : }
663 : }
664 : else
665 : {
666 0 : ENSURE_ARG_OR_THROW( false,
667 : "TextLayout not compatible with this canvas" );
668 : }
669 :
670 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
671 : }
672 :
673 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::implDrawBitmap( const rendering::XCanvas* pCanvas,
674 : const uno::Reference< rendering::XBitmap >& xBitmap,
675 : const rendering::ViewState& viewState,
676 : const rendering::RenderState& renderState,
677 : bool bModulateColors )
678 : {
679 0 : ENSURE_ARG_OR_THROW( xBitmap.is(),
680 : "bitmap is NULL");
681 :
682 : ::canvas::tools::verifyInput( renderState,
683 : BOOST_CURRENT_FUNCTION,
684 : mpDevice,
685 : 4,
686 0 : bModulateColors ? 3 : 0 );
687 :
688 0 : if( mpOutDev )
689 : {
690 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
691 0 : setupOutDevState( viewState, renderState, IGNORE_COLOR );
692 :
693 0 : ::basegfx::B2DHomMatrix aMatrix;
694 0 : ::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
695 :
696 0 : ::basegfx::B2DPoint aOutputPos( 0.0, 0.0 );
697 0 : aOutputPos *= aMatrix;
698 :
699 0 : BitmapEx aBmpEx( tools::bitmapExFromXBitmap(xBitmap) );
700 :
701 : // TODO(F2): Implement modulation again for other color
702 : // channels (currently, works only for alpha). Note: this
703 : // is already implemented in transformBitmap()
704 0 : if( bModulateColors &&
705 0 : renderState.DeviceColor.getLength() > 3 )
706 : {
707 : // optimize away the case where alpha modulation value
708 : // is 1.0 - we then simply switch off modulation at all
709 : bModulateColors = !::rtl::math::approxEqual(
710 0 : renderState.DeviceColor[3], 1.0);
711 : }
712 :
713 : // check whether we can render bitmap as-is: must not
714 : // modulate colors, matrix must either be the identity
715 : // transform (that's clear), _or_ contain only
716 : // translational components.
717 0 : if( !bModulateColors &&
718 0 : (aMatrix.isIdentity() ||
719 0 : (::basegfx::fTools::equalZero( aMatrix.get(0,1) ) &&
720 0 : ::basegfx::fTools::equalZero( aMatrix.get(1,0) ) &&
721 0 : ::rtl::math::approxEqual(aMatrix.get(0,0), 1.0) &&
722 0 : ::rtl::math::approxEqual(aMatrix.get(1,1), 1.0)) ) )
723 : {
724 : // optimized case: identity matrix, or only
725 : // translational components.
726 0 : mpOutDev->getOutDev().DrawBitmapEx( ::vcl::unotools::pointFromB2DPoint( aOutputPos ),
727 0 : aBmpEx );
728 :
729 0 : if( mp2ndOutDev )
730 : {
731 : // HACK. Normally, CanvasHelper does not care about
732 : // actually what mp2ndOutDev is... well, here we do &
733 : // assume a 1bpp target - everything beyond 97%
734 : // transparency is fully transparent
735 0 : if( aBmpEx.IsAlpha() )
736 : {
737 0 : Bitmap aMask( aBmpEx.GetAlpha().GetBitmap() );
738 0 : aMask.MakeMono( 253 );
739 0 : aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aMask );
740 : }
741 0 : else if( aBmpEx.IsTransparent() )
742 : {
743 0 : aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aBmpEx.GetMask() );
744 : }
745 :
746 0 : mp2ndOutDev->getOutDev().DrawBitmapEx( ::vcl::unotools::pointFromB2DPoint( aOutputPos ),
747 0 : aBmpEx );
748 : }
749 :
750 : // Returning a cache object is not useful, the XBitmap
751 : // itself serves this purpose
752 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
753 : }
754 : else
755 : {
756 : // Matrix contains non-trivial transformation (or
757 : // color modulation is requested), decompose to check
758 : // whether GraphicObject suffices
759 0 : ::basegfx::B2DVector aScale;
760 : double nRotate;
761 : double nShearX;
762 0 : aMatrix.decompose( aScale, aOutputPos, nRotate, nShearX );
763 :
764 0 : GraphicAttr aGrfAttr;
765 0 : GraphicObjectSharedPtr pGrfObj;
766 :
767 0 : ::Size aBmpSize( aBmpEx.GetSizePixel() );
768 :
769 : // setup alpha modulation
770 0 : if( bModulateColors )
771 : {
772 0 : const double nAlphaModulation( renderState.DeviceColor[3] );
773 :
774 : // TODO(F1): Note that the GraphicManager has a
775 : // subtle difference in how it calculates the
776 : // resulting alpha value: it's using the inverse
777 : // alpha values (i.e. 'transparency'), and
778 : // calculates transOrig + transModulate, instead
779 : // of transOrig + transModulate -
780 : // transOrig*transModulate (which would be
781 : // equivalent to the origAlpha*modulateAlpha the
782 : // DX canvas performs)
783 : aGrfAttr.SetTransparency(
784 : static_cast< sal_uInt8 >(
785 0 : ::basegfx::fround( 255.0*( 1.0 - nAlphaModulation ) ) ) );
786 : }
787 :
788 0 : if( ::basegfx::fTools::equalZero( nShearX ) )
789 : {
790 : // no shear, GraphicObject is enough (the
791 : // GraphicObject only supports scaling, rotation
792 : // and translation)
793 :
794 : // #i75339# don't apply mirror flags, having
795 : // negative size values is enough to make
796 : // GraphicObject flip the bitmap
797 :
798 : // The angle has to be mapped from radian to tenths of
799 : // degress with the orientation reversed: [0,2Pi) ->
800 : // (3600,0]. Note that the original angle may have
801 : // values outside the [0,2Pi) interval.
802 0 : const double nAngleInTenthOfDegrees (3600.0 - nRotate * 3600.0 / (2*M_PI));
803 0 : aGrfAttr.SetRotation( static_cast< sal_uInt16 >(::basegfx::fround(nAngleInTenthOfDegrees)) );
804 :
805 0 : pGrfObj.reset( new GraphicObject( aBmpEx ) );
806 : }
807 : else
808 : {
809 : // modify output position, to account for the fact
810 : // that transformBitmap() always normalizes its output
811 : // bitmap into the smallest enclosing box.
812 0 : ::basegfx::B2DRectangle aDestRect;
813 : ::canvas::tools::calcTransformedRectBounds( aDestRect,
814 : ::basegfx::B2DRectangle(0,
815 : 0,
816 0 : aBmpSize.Width(),
817 0 : aBmpSize.Height()),
818 0 : aMatrix );
819 :
820 0 : aOutputPos.setX( aDestRect.getMinX() );
821 0 : aOutputPos.setY( aDestRect.getMinY() );
822 :
823 : // complex transformation, use generic affine bitmap
824 : // transformation
825 0 : aBmpEx = tools::transformBitmap( aBmpEx,
826 : aMatrix,
827 : renderState.DeviceColor,
828 0 : tools::MODULATE_NONE );
829 :
830 0 : pGrfObj.reset( new GraphicObject( aBmpEx ) );
831 :
832 : // clear scale values, generated bitmap already
833 : // contains scaling
834 0 : aScale.setX( 1.0 ); aScale.setY( 1.0 );
835 :
836 : // update bitmap size, bitmap has changed above.
837 0 : aBmpSize = aBmpEx.GetSizePixel();
838 : }
839 :
840 : // output GraphicObject
841 0 : const ::Point aPt( ::vcl::unotools::pointFromB2DPoint( aOutputPos ) );
842 0 : const ::Size aSz( ::basegfx::fround( aScale.getX() * aBmpSize.Width() ),
843 0 : ::basegfx::fround( aScale.getY() * aBmpSize.Height() ) );
844 :
845 0 : pGrfObj->Draw( &mpOutDev->getOutDev(),
846 : aPt,
847 : aSz,
848 0 : &aGrfAttr );
849 :
850 0 : if( mp2ndOutDev )
851 0 : pGrfObj->Draw( &mp2ndOutDev->getOutDev(),
852 : aPt,
853 : aSz,
854 0 : &aGrfAttr );
855 :
856 : // created GraphicObject, which possibly cached
857 : // display bitmap - return cache object, to retain
858 : // that information.
859 : return uno::Reference< rendering::XCachedPrimitive >(
860 : new CachedBitmap( pGrfObj,
861 : aPt,
862 : aSz,
863 : aGrfAttr,
864 : viewState,
865 : renderState,
866 : // cast away const, need to
867 : // change refcount (as this is
868 : // ~invisible to client code,
869 : // still logically const)
870 0 : const_cast< rendering::XCanvas* >(pCanvas)) );
871 0 : }
872 : }
873 :
874 : // Nothing rendered
875 0 : return uno::Reference< rendering::XCachedPrimitive >(NULL);
876 : }
877 :
878 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmap( const rendering::XCanvas* pCanvas,
879 : const uno::Reference< rendering::XBitmap >& xBitmap,
880 : const rendering::ViewState& viewState,
881 : const rendering::RenderState& renderState )
882 : {
883 : return implDrawBitmap( pCanvas,
884 : xBitmap,
885 : viewState,
886 : renderState,
887 0 : false );
888 : }
889 :
890 0 : uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmapModulated( const rendering::XCanvas* pCanvas,
891 : const uno::Reference< rendering::XBitmap >& xBitmap,
892 : const rendering::ViewState& viewState,
893 : const rendering::RenderState& renderState )
894 : {
895 : return implDrawBitmap( pCanvas,
896 : xBitmap,
897 : viewState,
898 : renderState,
899 0 : true );
900 : }
901 :
902 0 : void CanvasHelper::copyRect( const rendering::XCanvas* ,
903 : const uno::Reference< rendering::XBitmapCanvas >& ,
904 : const geometry::RealRectangle2D& ,
905 : const rendering::ViewState& ,
906 : const rendering::RenderState& ,
907 : const geometry::RealRectangle2D& ,
908 : const rendering::ViewState& ,
909 : const rendering::RenderState& )
910 : {
911 : // TODO(F1)
912 0 : }
913 :
914 0 : geometry::IntegerSize2D CanvasHelper::getSize()
915 : {
916 0 : if( !mpOutDev.get() )
917 0 : return geometry::IntegerSize2D(); // we're disposed
918 :
919 0 : return ::vcl::unotools::integerSize2DFromSize( mpOutDev->getOutDev().GetOutputSizePixel() );
920 : }
921 :
922 0 : uno::Reference< rendering::XBitmap > CanvasHelper::getScaledBitmap( const geometry::RealSize2D& newSize,
923 : bool beFast )
924 : {
925 0 : if( !mpOutDev.get() || !mpDevice )
926 0 : return uno::Reference< rendering::XBitmap >(); // we're disposed
927 :
928 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
929 :
930 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
931 0 : rOutDev.EnableMapMode( false );
932 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
933 :
934 : // TODO(F2): Support alpha vdev canvas here
935 0 : const Point aEmptyPoint(0,0);
936 0 : const Size aBmpSize( rOutDev.GetOutputSizePixel() );
937 :
938 0 : Bitmap aBitmap( rOutDev.GetBitmap(aEmptyPoint, aBmpSize) );
939 :
940 : aBitmap.Scale( ::vcl::unotools::sizeFromRealSize2D(newSize),
941 0 : beFast ? BMP_SCALE_DEFAULT : BMP_SCALE_BESTQUALITY );
942 :
943 : return uno::Reference< rendering::XBitmap >(
944 0 : new CanvasBitmap( aBitmap, *mpDevice, mpOutDev ) );
945 : }
946 :
947 0 : uno::Sequence< sal_Int8 > CanvasHelper::getData( rendering::IntegerBitmapLayout& rLayout,
948 : const geometry::IntegerRectangle2D& rect )
949 : {
950 0 : if( !mpOutDev.get() )
951 0 : return uno::Sequence< sal_Int8 >(); // we're disposed
952 :
953 0 : rLayout = getMemoryLayout();
954 :
955 : // TODO(F2): Support alpha canvas here
956 0 : const Rectangle aRect( ::vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
957 :
958 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
959 :
960 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
961 0 : rOutDev.EnableMapMode( false );
962 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
963 :
964 : Bitmap aBitmap( rOutDev.GetBitmap(aRect.TopLeft(),
965 0 : aRect.GetSize()) );
966 :
967 0 : Bitmap::ScopedReadAccess pReadAccess( aBitmap );
968 :
969 0 : ENSURE_OR_THROW( pReadAccess.get() != NULL,
970 : "Could not acquire read access to OutDev bitmap" );
971 :
972 0 : const sal_Int32 nWidth( rect.X2 - rect.X1 );
973 0 : const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
974 :
975 0 : rLayout.ScanLines = nHeight;
976 0 : rLayout.ScanLineBytes = nWidth*4;
977 0 : rLayout.ScanLineStride = rLayout.ScanLineBytes;
978 :
979 0 : uno::Sequence< sal_Int8 > aRes( 4*nWidth*nHeight );
980 0 : sal_Int8* pRes = aRes.getArray();
981 :
982 0 : int nCurrPos(0);
983 0 : for( int y=0; y<nHeight; ++y )
984 : {
985 0 : for( int x=0; x<nWidth; ++x )
986 : {
987 0 : pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetRed();
988 0 : pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetGreen();
989 0 : pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetBlue();
990 0 : pRes[ nCurrPos++ ] = -1;
991 : }
992 : }
993 :
994 0 : return aRes;
995 : }
996 :
997 0 : void CanvasHelper::setData( const uno::Sequence< sal_Int8 >& data,
998 : const rendering::IntegerBitmapLayout& aLayout,
999 : const geometry::IntegerRectangle2D& rect )
1000 : {
1001 0 : if( !mpOutDev.get() )
1002 0 : return; // we're disposed
1003 :
1004 0 : const rendering::IntegerBitmapLayout aRefLayout( getMemoryLayout() );
1005 0 : ENSURE_ARG_OR_THROW( aRefLayout.PlaneStride != aLayout.PlaneStride ||
1006 : aRefLayout.ColorSpace != aLayout.ColorSpace ||
1007 : aRefLayout.Palette != aLayout.Palette ||
1008 : aRefLayout.IsMsbFirst != aLayout.IsMsbFirst,
1009 : "Mismatching memory layout" );
1010 :
1011 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
1012 :
1013 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
1014 0 : rOutDev.EnableMapMode( false );
1015 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
1016 :
1017 0 : const Rectangle aRect( ::vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
1018 : const sal_uInt16 nBitCount( ::std::min( (sal_uInt16)24U,
1019 0 : (sal_uInt16)rOutDev.GetBitCount() ) );
1020 0 : const BitmapPalette* pPalette = NULL;
1021 :
1022 0 : if( nBitCount <= 8 )
1023 : {
1024 : // TODO(Q1): Extract this to a common place, e.g. GraphicDevice
1025 :
1026 : // try to determine palette from output device (by
1027 : // extracting a 1,1 bitmap, and querying it)
1028 0 : const Point aEmptyPoint;
1029 0 : const Size aSize(1,1);
1030 : Bitmap aTmpBitmap( rOutDev.GetBitmap( aEmptyPoint,
1031 0 : aSize ) );
1032 :
1033 0 : Bitmap::ScopedReadAccess pReadAccess( aTmpBitmap );
1034 :
1035 0 : pPalette = &pReadAccess->GetPalette();
1036 : }
1037 :
1038 : // TODO(F2): Support alpha canvas here
1039 0 : Bitmap aBitmap( aRect.GetSize(), nBitCount, pPalette );
1040 :
1041 0 : bool bCopyBack( false ); // only copy something back, if we
1042 : // actually changed some pixel
1043 : {
1044 0 : Bitmap::ScopedWriteAccess pWriteAccess( aBitmap );
1045 :
1046 0 : ENSURE_OR_THROW( pWriteAccess.get() != NULL,
1047 : "Could not acquire write access to OutDev bitmap" );
1048 :
1049 : // for the time being, always read as RGB
1050 0 : const sal_Int32 nWidth( rect.X2 - rect.X1 );
1051 0 : const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
1052 0 : int x, y, nCurrPos(0);
1053 0 : for( y=0; y<nHeight; ++y )
1054 : {
1055 0 : switch( pWriteAccess->GetScanlineFormat() )
1056 : {
1057 : case BMP_FORMAT_8BIT_PAL:
1058 : {
1059 0 : Scanline pScan = pWriteAccess->GetScanline( y );
1060 :
1061 0 : for( x=0; x<nWidth; ++x )
1062 : {
1063 0 : *pScan++ = (sal_uInt8)pWriteAccess->GetBestPaletteIndex(
1064 0 : BitmapColor( data[ nCurrPos ],
1065 0 : data[ nCurrPos+1 ],
1066 0 : data[ nCurrPos+2 ] ) );
1067 :
1068 0 : nCurrPos += 4;
1069 : }
1070 : }
1071 0 : break;
1072 :
1073 : case BMP_FORMAT_24BIT_TC_BGR:
1074 : {
1075 0 : Scanline pScan = pWriteAccess->GetScanline( y );
1076 :
1077 0 : for( x=0; x<nWidth; ++x )
1078 : {
1079 0 : *pScan++ = data[ nCurrPos+2 ];
1080 0 : *pScan++ = data[ nCurrPos+1 ];
1081 0 : *pScan++ = data[ nCurrPos ];
1082 :
1083 0 : nCurrPos += 4;
1084 : }
1085 : }
1086 0 : break;
1087 :
1088 : case BMP_FORMAT_24BIT_TC_RGB:
1089 : {
1090 0 : Scanline pScan = pWriteAccess->GetScanline( y );
1091 :
1092 0 : for( x=0; x<nWidth; ++x )
1093 : {
1094 0 : *pScan++ = data[ nCurrPos ];
1095 0 : *pScan++ = data[ nCurrPos+1 ];
1096 0 : *pScan++ = data[ nCurrPos+2 ];
1097 :
1098 0 : nCurrPos += 4;
1099 : }
1100 : }
1101 0 : break;
1102 :
1103 : default:
1104 : {
1105 0 : for( x=0; x<nWidth; ++x )
1106 : {
1107 0 : pWriteAccess->SetPixel( y, x, BitmapColor( data[ nCurrPos ],
1108 0 : data[ nCurrPos+1 ],
1109 0 : data[ nCurrPos+2 ] ) );
1110 0 : nCurrPos += 4;
1111 : }
1112 : }
1113 0 : break;
1114 : }
1115 : }
1116 :
1117 0 : bCopyBack = true;
1118 : }
1119 :
1120 : // copy back only here, since the BitmapAccessors must be
1121 : // destroyed beforehand
1122 0 : if( bCopyBack )
1123 : {
1124 : // TODO(F2): Support alpha canvas here
1125 0 : rOutDev.DrawBitmap(aRect.TopLeft(), aBitmap);
1126 0 : }
1127 : }
1128 :
1129 0 : void CanvasHelper::setPixel( const uno::Sequence< sal_Int8 >& color,
1130 : const rendering::IntegerBitmapLayout& rLayout,
1131 : const geometry::IntegerPoint2D& pos )
1132 : {
1133 0 : if( !mpOutDev.get() )
1134 0 : return; // we're disposed
1135 :
1136 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
1137 :
1138 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
1139 0 : rOutDev.EnableMapMode( false );
1140 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
1141 :
1142 0 : const Size aBmpSize( rOutDev.GetOutputSizePixel() );
1143 :
1144 0 : ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
1145 : "X coordinate out of bounds" );
1146 0 : ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
1147 : "Y coordinate out of bounds" );
1148 0 : ENSURE_ARG_OR_THROW( color.getLength() > 3,
1149 : "not enough color components" );
1150 :
1151 0 : const rendering::IntegerBitmapLayout aRefLayout( getMemoryLayout() );
1152 0 : ENSURE_ARG_OR_THROW( aRefLayout.PlaneStride != rLayout.PlaneStride ||
1153 : aRefLayout.ColorSpace != rLayout.ColorSpace ||
1154 : aRefLayout.Palette != rLayout.Palette ||
1155 : aRefLayout.IsMsbFirst != rLayout.IsMsbFirst,
1156 : "Mismatching memory layout" );
1157 :
1158 : // TODO(F2): Support alpha canvas here
1159 : rOutDev.DrawPixel( ::vcl::unotools::pointFromIntegerPoint2D( pos ),
1160 0 : ::canvas::tools::stdIntSequenceToColor( color ));
1161 : }
1162 :
1163 0 : uno::Sequence< sal_Int8 > CanvasHelper::getPixel( rendering::IntegerBitmapLayout& rLayout,
1164 : const geometry::IntegerPoint2D& pos )
1165 : {
1166 0 : if( !mpOutDev.get() )
1167 0 : return uno::Sequence< sal_Int8 >(); // we're disposed
1168 :
1169 0 : rLayout = getMemoryLayout();
1170 0 : rLayout.ScanLines = 1;
1171 0 : rLayout.ScanLineBytes = 4;
1172 0 : rLayout.ScanLineStride = rLayout.ScanLineBytes;
1173 :
1174 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
1175 :
1176 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
1177 0 : rOutDev.EnableMapMode( false );
1178 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
1179 :
1180 0 : const Size aBmpSize( rOutDev.GetOutputSizePixel() );
1181 :
1182 0 : ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
1183 : "X coordinate out of bounds" );
1184 0 : ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
1185 : "Y coordinate out of bounds" );
1186 :
1187 : // TODO(F2): Support alpha canvas here
1188 : return ::canvas::tools::colorToStdIntSequence(
1189 : rOutDev.GetPixel(
1190 0 : ::vcl::unotools::pointFromIntegerPoint2D( pos )));
1191 : }
1192 :
1193 0 : rendering::IntegerBitmapLayout CanvasHelper::getMemoryLayout()
1194 : {
1195 0 : if( !mpOutDev.get() )
1196 0 : return rendering::IntegerBitmapLayout(); // we're disposed
1197 :
1198 0 : rendering::IntegerBitmapLayout xBitmapLayout( ::canvas::tools::getStdMemoryLayout(getSize()) );
1199 0 : if ( !mbHaveAlpha )
1200 0 : xBitmapLayout.ColorSpace = canvas::tools::getStdColorSpaceWithoutAlpha();
1201 :
1202 0 : return xBitmapLayout;
1203 : }
1204 :
1205 0 : int CanvasHelper::setupOutDevState( const rendering::ViewState& viewState,
1206 : const rendering::RenderState& renderState,
1207 : ColorType eColorType ) const
1208 : {
1209 0 : ENSURE_OR_THROW( mpOutDev.get(),
1210 : "outdev null. Are we disposed?" );
1211 :
1212 : ::canvas::tools::verifyInput( renderState,
1213 : BOOST_CURRENT_FUNCTION,
1214 : mpDevice,
1215 : 2,
1216 0 : eColorType == IGNORE_COLOR ? 0 : 3 );
1217 :
1218 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
1219 0 : OutputDevice* p2ndOutDev = NULL;
1220 :
1221 0 : rOutDev.EnableMapMode( false );
1222 0 : rOutDev.SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW );
1223 :
1224 0 : if( mp2ndOutDev )
1225 0 : p2ndOutDev = &mp2ndOutDev->getOutDev();
1226 :
1227 0 : int nTransparency(0);
1228 :
1229 : // TODO(P2): Don't change clipping all the time, maintain current clip
1230 : // state and change only when update is necessary
1231 :
1232 : // accumulate non-empty clips into one region
1233 : // ==========================================
1234 :
1235 0 : vcl::Region aClipRegion(true);
1236 :
1237 0 : if( viewState.Clip.is() )
1238 : {
1239 : ::basegfx::B2DPolyPolygon aClipPoly(
1240 0 : ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(viewState.Clip) );
1241 :
1242 0 : if( aClipPoly.count() )
1243 : {
1244 : // setup non-empty clipping
1245 0 : ::basegfx::B2DHomMatrix aMatrix;
1246 : aClipPoly.transform(
1247 : ::basegfx::unotools::homMatrixFromAffineMatrix( aMatrix,
1248 0 : viewState.AffineTransform ) );
1249 :
1250 0 : aClipRegion = vcl::Region::GetRegionFromPolyPolygon( ::tools::PolyPolygon( aClipPoly ) );
1251 : }
1252 : else
1253 : {
1254 : // clip polygon is empty
1255 0 : aClipRegion.SetEmpty();
1256 0 : }
1257 : }
1258 :
1259 0 : if( renderState.Clip.is() )
1260 : {
1261 : ::basegfx::B2DPolyPolygon aClipPoly(
1262 0 : ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(renderState.Clip) );
1263 :
1264 0 : ::basegfx::B2DHomMatrix aMatrix;
1265 : aClipPoly.transform(
1266 : ::canvas::tools::mergeViewAndRenderTransform( aMatrix,
1267 : viewState,
1268 0 : renderState ) );
1269 :
1270 0 : if( aClipPoly.count() )
1271 : {
1272 : // setup non-empty clipping
1273 0 : vcl::Region aRegion = vcl::Region::GetRegionFromPolyPolygon( ::tools::PolyPolygon( aClipPoly ) );
1274 0 : aClipRegion.Intersect( aRegion );
1275 : }
1276 : else
1277 : {
1278 : // clip polygon is empty
1279 0 : aClipRegion.SetEmpty();
1280 0 : }
1281 : }
1282 :
1283 : // setup accumulated clip region. Note that setting an
1284 : // empty clip region denotes "clip everything" on the
1285 : // OutputDevice (which is why we translate that into
1286 : // SetClipRegion() here). When both view and render clip
1287 : // are empty, aClipRegion remains default-constructed,
1288 : // i.e. empty, too.
1289 0 : if( aClipRegion.IsNull() )
1290 : {
1291 0 : rOutDev.SetClipRegion();
1292 :
1293 0 : if( p2ndOutDev )
1294 0 : p2ndOutDev->SetClipRegion();
1295 : }
1296 : else
1297 : {
1298 0 : rOutDev.SetClipRegion( aClipRegion );
1299 :
1300 0 : if( p2ndOutDev )
1301 0 : p2ndOutDev->SetClipRegion( aClipRegion );
1302 : }
1303 :
1304 0 : Color aColor( COL_WHITE );
1305 :
1306 0 : if( renderState.DeviceColor.getLength() > 2 )
1307 : {
1308 : aColor = ::vcl::unotools::stdColorSpaceSequenceToColor(
1309 0 : renderState.DeviceColor );
1310 : }
1311 :
1312 : // extract alpha, and make color opaque
1313 : // afterwards. Otherwise, OutputDevice won't draw anything
1314 0 : nTransparency = aColor.GetTransparency();
1315 0 : aColor.SetTransparency(0);
1316 :
1317 0 : if( eColorType != IGNORE_COLOR )
1318 : {
1319 0 : switch( eColorType )
1320 : {
1321 : case LINE_COLOR:
1322 0 : rOutDev.SetLineColor( aColor );
1323 0 : rOutDev.SetFillColor();
1324 :
1325 0 : if( p2ndOutDev )
1326 : {
1327 0 : p2ndOutDev->SetLineColor( aColor );
1328 0 : p2ndOutDev->SetFillColor();
1329 : }
1330 0 : break;
1331 :
1332 : case FILL_COLOR:
1333 0 : rOutDev.SetFillColor( aColor );
1334 0 : rOutDev.SetLineColor();
1335 :
1336 0 : if( p2ndOutDev )
1337 : {
1338 0 : p2ndOutDev->SetFillColor( aColor );
1339 0 : p2ndOutDev->SetLineColor();
1340 : }
1341 0 : break;
1342 :
1343 : case TEXT_COLOR:
1344 0 : rOutDev.SetTextColor( aColor );
1345 :
1346 0 : if( p2ndOutDev )
1347 0 : p2ndOutDev->SetTextColor( aColor );
1348 0 : break;
1349 :
1350 : default:
1351 0 : ENSURE_OR_THROW( false,
1352 : "Unexpected color type");
1353 : break;
1354 : }
1355 : }
1356 :
1357 0 : return nTransparency;
1358 : }
1359 :
1360 0 : bool CanvasHelper::setupTextOutput( ::Point& o_rOutPos,
1361 : const rendering::ViewState& viewState,
1362 : const rendering::RenderState& renderState,
1363 : const uno::Reference< rendering::XCanvasFont >& xFont ) const
1364 : {
1365 0 : ENSURE_OR_THROW( mpOutDev.get(),
1366 : "outdev null. Are we disposed?" );
1367 :
1368 0 : setupOutDevState( viewState, renderState, TEXT_COLOR );
1369 :
1370 0 : OutputDevice& rOutDev( mpOutDev->getOutDev() );
1371 :
1372 0 : vcl::Font aVCLFont;
1373 :
1374 0 : CanvasFont* pFont = dynamic_cast< CanvasFont* >( xFont.get() );
1375 :
1376 0 : ENSURE_ARG_OR_THROW( pFont,
1377 : "Font not compatible with this canvas" );
1378 :
1379 0 : aVCLFont = pFont->getVCLFont();
1380 :
1381 0 : Color aColor( COL_BLACK );
1382 :
1383 0 : if( renderState.DeviceColor.getLength() > 2 )
1384 : {
1385 : aColor = ::vcl::unotools::stdColorSpaceSequenceToColor(
1386 0 : renderState.DeviceColor );
1387 : }
1388 :
1389 : // setup font color
1390 0 : aVCLFont.SetColor( aColor );
1391 0 : aVCLFont.SetFillColor( aColor );
1392 :
1393 : // no need to replicate this for mp2ndOutDev, we're modifying only aVCLFont here.
1394 0 : if( !tools::setupFontTransform( o_rOutPos, aVCLFont, viewState, renderState, rOutDev ) )
1395 0 : return false;
1396 :
1397 0 : rOutDev.SetFont( aVCLFont );
1398 :
1399 0 : if( mp2ndOutDev )
1400 0 : mp2ndOutDev->getOutDev().SetFont( aVCLFont );
1401 :
1402 0 : return true;
1403 : }
1404 :
1405 0 : bool CanvasHelper::repaint( const GraphicObjectSharedPtr& rGrf,
1406 : const rendering::ViewState& viewState,
1407 : const rendering::RenderState& renderState,
1408 : const ::Point& rPt,
1409 : const ::Size& rSz,
1410 : const GraphicAttr& rAttr ) const
1411 : {
1412 0 : ENSURE_OR_RETURN_FALSE( rGrf,
1413 : "Invalid Graphic" );
1414 :
1415 0 : if( !mpOutDev )
1416 0 : return false; // disposed
1417 : else
1418 : {
1419 0 : tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDev );
1420 0 : setupOutDevState( viewState, renderState, IGNORE_COLOR );
1421 :
1422 0 : if( !rGrf->Draw( &mpOutDev->getOutDev(), rPt, rSz, &rAttr ) )
1423 0 : return false;
1424 :
1425 : // #i80779# Redraw also into mask outdev
1426 0 : if( mp2ndOutDev )
1427 0 : return rGrf->Draw( &mp2ndOutDev->getOutDev(), rPt, rSz, &rAttr );
1428 :
1429 0 : return true;
1430 : }
1431 : }
1432 :
1433 0 : void CanvasHelper::flush() const
1434 : {
1435 0 : if( mpOutDev && mpOutDev->getOutDev().GetOutDevType() == OUTDEV_WINDOW )
1436 : {
1437 : // TODO(Q3): Evil downcast. And what's more, Window::Flush is
1438 : // not even const. Wah.
1439 0 : static_cast<vcl::Window&>(mpOutDev->getOutDev()).Flush();
1440 : }
1441 :
1442 0 : if( mp2ndOutDev && mp2ndOutDev->getOutDev().GetOutDevType() == OUTDEV_WINDOW )
1443 : {
1444 : // TODO(Q3): Evil downcast. And what's more, Window::Flush is
1445 : // not even const. Wah.
1446 0 : static_cast<vcl::Window&>(mp2ndOutDev->getOutDev()).Flush();
1447 : }
1448 0 : }
1449 :
1450 0 : }
1451 :
1452 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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