| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_canvas.hxx" |
| |
| #include <ctype.h> // don't ask. msdev breaks otherwise... |
| #include <basegfx/numeric/ftools.hxx> |
| |
| #include <canvas/debug.hxx> |
| #include <canvas/verbosetrace.hxx> |
| #include <tools/diagnose_ex.h> |
| |
| #include <com/sun/star/lang/XServiceInfo.hpp> |
| #include <com/sun/star/lang/XUnoTunnel.hpp> |
| #include <com/sun/star/geometry/RealPoint2D.hpp> |
| #include <com/sun/star/geometry/IntegerRectangle2D.hpp> |
| |
| #include <basegfx/matrix/b2dhommatrix.hxx> |
| #include <basegfx/range/b2irectangle.hxx> |
| #include <basegfx/range/b2drectangle.hxx> |
| #include <basegfx/polygon/b2dpolygon.hxx> |
| #include <basegfx/polygon/b2dpolypolygon.hxx> |
| #include <basegfx/tools/canvastools.hxx> |
| |
| #include <canvas/canvastools.hxx> |
| #include <canvas/verifyinput.hxx> |
| |
| #include "dx_impltools.hxx" |
| #include "dx_vcltools.hxx" |
| #include "dx_linepolypolygon.hxx" |
| #include "dx_canvasbitmap.hxx" |
| #include "dx_canvasfont.hxx" |
| #include "dx_canvas.hxx" |
| #include "dx_spritecanvas.hxx" |
| |
| #include <boost/scoped_array.hpp> |
| |
| #include <vector> |
| #include <algorithm> |
| |
| |
| using namespace ::com::sun::star; |
| |
| |
| namespace dxcanvas |
| { |
| namespace tools |
| { |
| ::basegfx::B2DPolyPolygon polyPolygonFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly ) |
| { |
| LinePolyPolygon* pPolyImpl = dynamic_cast< LinePolyPolygon* >( xPoly.get() ); |
| |
| if( pPolyImpl ) |
| { |
| return pPolyImpl->getPolyPolygon(); |
| } |
| else |
| { |
| const sal_Int32 nPolys( xPoly->getNumberOfPolygons() ); |
| |
| // not a known implementation object - try data source |
| // interfaces |
| uno::Reference< rendering::XBezierPolyPolygon2D > xBezierPoly( |
| xPoly, |
| uno::UNO_QUERY ); |
| |
| if( xBezierPoly.is() ) |
| { |
| return ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence( |
| xBezierPoly->getBezierSegments( 0, |
| nPolys, |
| 0, |
| -1 ) ); |
| } |
| else |
| { |
| uno::Reference< rendering::XLinePolyPolygon2D > xLinePoly( |
| xPoly, |
| uno::UNO_QUERY ); |
| |
| // no implementation class and no data provider |
| // found - contract violation. |
| ENSURE_ARG_OR_THROW( xLinePoly.is(), |
| "VCLCanvas::polyPolygonFromXPolyPolygon2D(): Invalid input " |
| "poly-polygon, cannot retrieve vertex data" ); |
| |
| return ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence( |
| xLinePoly->getPoints( 0, |
| nPolys, |
| 0, |
| -1 ) ); |
| } |
| } |
| } |
| |
| void setupGraphics( Gdiplus::Graphics& rGraphics ) |
| { |
| // setup graphics with (somewhat arbitrary) defaults |
| //rGraphics.SetCompositingQuality( Gdiplus::CompositingQualityHighQuality ); |
| rGraphics.SetCompositingQuality( Gdiplus::CompositingQualityHighSpeed ); |
| //rGraphics.SetInterpolationMode( Gdiplus::InterpolationModeHighQualityBilinear ); // with prefiltering for shrinks |
| rGraphics.SetInterpolationMode( Gdiplus::InterpolationModeBilinear ); |
| |
| // #122683# Switched precedence of pixel offset |
| // mode. Seemingly, polygon stroking needs |
| // PixelOffsetModeNone to achieve visually pleasing |
| // results, whereas all other operations (e.g. polygon |
| // fills, bitmaps) look better with PixelOffsetModeHalf. |
| rGraphics.SetPixelOffsetMode( Gdiplus::PixelOffsetModeHalf ); // Pixel center at (0.5, 0.5) etc. |
| //rGraphics.SetPixelOffsetMode( Gdiplus::PixelOffsetModeNone ); |
| |
| //rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeHighSpeed ); // no line/curve antialiasing |
| //rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeHighQuality ); |
| rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeAntiAlias ); |
| //rGraphics.SetTextRenderingHint( Gdiplus::TextRenderingHintAntiAlias ); |
| rGraphics.SetTextRenderingHint( Gdiplus::TextRenderingHintSystemDefault ); |
| rGraphics.SetPageUnit(Gdiplus::UnitPixel); |
| } |
| |
| Gdiplus::Graphics* createGraphicsFromHDC(HDC aHDC) |
| { |
| Gdiplus::Graphics* pRet = new Gdiplus::Graphics(aHDC); |
| if( pRet ) |
| setupGraphics( *pRet ); |
| return pRet; |
| } |
| |
| Gdiplus::Graphics* createGraphicsFromBitmap(const BitmapSharedPtr& rBitmap) |
| { |
| Gdiplus::Graphics* pRet = Gdiplus::Graphics::FromImage(rBitmap.get()); |
| if( pRet ) |
| setupGraphics( *pRet ); |
| return pRet; |
| } |
| |
| void gdiPlusMatrixFromB2DHomMatrix( Gdiplus::Matrix& rGdiplusMatrix, const ::basegfx::B2DHomMatrix& rMatrix ) |
| { |
| rGdiplusMatrix.SetElements( static_cast<Gdiplus::REAL>(rMatrix.get(0,0)), |
| static_cast<Gdiplus::REAL>(rMatrix.get(1,0)), |
| static_cast<Gdiplus::REAL>(rMatrix.get(0,1)), |
| static_cast<Gdiplus::REAL>(rMatrix.get(1,1)), |
| static_cast<Gdiplus::REAL>(rMatrix.get(0,2)), |
| static_cast<Gdiplus::REAL>(rMatrix.get(1,2)) ); |
| } |
| |
| void gdiPlusMatrixFromAffineMatrix2D( Gdiplus::Matrix& rGdiplusMatrix, |
| const geometry::AffineMatrix2D& rMatrix ) |
| { |
| rGdiplusMatrix.SetElements( static_cast<Gdiplus::REAL>(rMatrix.m00), |
| static_cast<Gdiplus::REAL>(rMatrix.m10), |
| static_cast<Gdiplus::REAL>(rMatrix.m01), |
| static_cast<Gdiplus::REAL>(rMatrix.m11), |
| static_cast<Gdiplus::REAL>(rMatrix.m02), |
| static_cast<Gdiplus::REAL>(rMatrix.m12) ); |
| } |
| |
| namespace |
| { |
| // TODO(P2): Check whether this gets inlined. If not, make functor |
| // out of it |
| inline Gdiplus::PointF implGdiPlusPointFromRealPoint2D( const ::com::sun::star::geometry::RealPoint2D& rPoint ) |
| { |
| return Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.X), |
| static_cast<Gdiplus::REAL>(rPoint.Y) ); |
| } |
| |
| void graphicsPathFromB2DPolygon( GraphicsPathSharedPtr& rOutput, |
| ::std::vector< Gdiplus::PointF >& rPoints, |
| const ::basegfx::B2DPolygon& rPoly, |
| bool bNoLineJoin) |
| { |
| const sal_uInt32 nPoints( rPoly.count() ); |
| |
| if( nPoints < 2 ) |
| return; |
| |
| rOutput->StartFigure(); |
| |
| const bool bClosedPolygon( rPoly.isClosed() ); |
| |
| if( rPoly.areControlPointsUsed() ) |
| { |
| // control points used -> for now, add all |
| // segments as curves to GraphicsPath |
| |
| // If the polygon is closed, we need to add the |
| // first point, thus, one more (can't simply |
| // GraphicsPath::CloseFigure() it, since the last |
| // point cannot have any control points for GDI+) |
| rPoints.resize( 3*nPoints + bClosedPolygon ); |
| |
| sal_uInt32 nCurrOutput=0; |
| for( sal_uInt32 nCurrPoint=0; nCurrPoint<nPoints; ++nCurrPoint ) |
| { |
| const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint( nCurrPoint ) ); |
| rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()), |
| static_cast<Gdiplus::REAL>(rPoint.getY()) ); |
| |
| const ::basegfx::B2DPoint& rControlPointA( rPoly.getNextControlPoint( nCurrPoint ) ); |
| rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rControlPointA.getX()), |
| static_cast<Gdiplus::REAL>(rControlPointA.getY()) ); |
| |
| const ::basegfx::B2DPoint& rControlPointB( rPoly.getPrevControlPoint( (nCurrPoint + 1) % nPoints) ); |
| rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rControlPointB.getX()), |
| static_cast<Gdiplus::REAL>(rControlPointB.getY()) ); |
| } |
| |
| if( bClosedPolygon ) |
| { |
| // add first point again (to be able to pass |
| // control points for the last point, see |
| // above) |
| const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint(0) ); |
| rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()), |
| static_cast<Gdiplus::REAL>(rPoint.getY()) ); |
| |
| if(bNoLineJoin && nCurrOutput > 7) |
| { |
| for(sal_uInt32 a(3); a < nCurrOutput; a+=3) |
| { |
| rOutput->StartFigure(); |
| rOutput->AddBezier(rPoints[a - 3], rPoints[a - 2], rPoints[a - 1], rPoints[a]); |
| } |
| } |
| else |
| { |
| rOutput->AddBeziers( &rPoints[0], nCurrOutput ); |
| } |
| } |
| else |
| { |
| // GraphicsPath expects 3(n-1)+1 points (i.e. the |
| // last point must not have any trailing control |
| // points after it). |
| // Therefore, simply don't pass the last two |
| // points here. |
| if( nCurrOutput > 3 ) |
| { |
| if(bNoLineJoin && nCurrOutput > 7) |
| { |
| for(sal_uInt32 a(3); a < nCurrOutput; a+=3) |
| { |
| rOutput->StartFigure(); |
| rOutput->AddBezier(rPoints[a - 3], rPoints[a - 2], rPoints[a - 1], rPoints[a]); |
| } |
| } |
| else |
| { |
| rOutput->AddBeziers( &rPoints[0], nCurrOutput-2 ); |
| } |
| } |
| } |
| } |
| else |
| { |
| // no control points -> no curves, simply add |
| // straigt lines to GraphicsPath |
| rPoints.resize( nPoints ); |
| |
| for( sal_uInt32 nCurrPoint=0; nCurrPoint<nPoints; ++nCurrPoint ) |
| { |
| const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint( nCurrPoint ) ); |
| rPoints[nCurrPoint] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()), |
| static_cast<Gdiplus::REAL>(rPoint.getY()) ); |
| } |
| |
| if(bNoLineJoin && nPoints > 2) |
| { |
| for(sal_uInt32 a(1); a < nPoints; a++) |
| { |
| rOutput->StartFigure(); |
| rOutput->AddLine(rPoints[a - 1], rPoints[a]); |
| } |
| |
| if(bClosedPolygon) |
| { |
| rOutput->StartFigure(); |
| rOutput->AddLine(rPoints[nPoints - 1], rPoints[0]); |
| } |
| } |
| else |
| { |
| rOutput->AddLines( &rPoints[0], nPoints ); |
| } |
| } |
| |
| if( bClosedPolygon && !bNoLineJoin ) |
| rOutput->CloseFigure(); |
| } |
| } |
| |
| Gdiplus::PointF gdiPlusPointFromRealPoint2D( const ::com::sun::star::geometry::RealPoint2D& rPoint ) |
| { |
| return implGdiPlusPointFromRealPoint2D( rPoint ); |
| } |
| |
| Gdiplus::Rect gdiPlusRectFromIntegerRectangle2D( const geometry::IntegerRectangle2D& rRect ) |
| { |
| return Gdiplus::Rect( rRect.X1, |
| rRect.Y1, |
| rRect.X2 - rRect.X1, |
| rRect.Y2 - rRect.Y1 ); |
| } |
| |
| Gdiplus::RectF gdiPlusRectFFromRectangle2D( const geometry::RealRectangle2D& rRect ) |
| { |
| return Gdiplus::RectF( static_cast<Gdiplus::REAL>(rRect.X1), |
| static_cast<Gdiplus::REAL>(rRect.Y1), |
| static_cast<Gdiplus::REAL>(rRect.X2 - rRect.X1), |
| static_cast<Gdiplus::REAL>(rRect.Y2 - rRect.Y1) ); |
| } |
| |
| RECT gdiRectFromB2IRect( const ::basegfx::B2IRange& rRect ) |
| { |
| RECT aRect = {rRect.getMinX(), |
| rRect.getMinY(), |
| rRect.getMaxX(), |
| rRect.getMaxY()}; |
| |
| return aRect; |
| } |
| |
| geometry::RealPoint2D realPoint2DFromGdiPlusPointF( const Gdiplus::PointF& rPoint ) |
| { |
| return geometry::RealPoint2D( rPoint.X, rPoint.Y ); |
| } |
| |
| geometry::RealRectangle2D realRectangle2DFromGdiPlusRectF( const Gdiplus::RectF& rRect ) |
| { |
| return geometry::RealRectangle2D( rRect.X, rRect.Y, |
| rRect.X + rRect.Width, |
| rRect.Y + rRect.Height ); |
| } |
| |
| ::basegfx::B2DPoint b2dPointFromGdiPlusPointF( const Gdiplus::PointF& rPoint ) |
| { |
| return ::basegfx::B2DPoint( rPoint.X, rPoint.Y ); |
| } |
| |
| ::basegfx::B2DRange b2dRangeFromGdiPlusRectF( const Gdiplus::RectF& rRect ) |
| { |
| return ::basegfx::B2DRange( rRect.X, rRect.Y, |
| rRect.X + rRect.Width, |
| rRect.Y + rRect.Height ); |
| } |
| |
| uno::Sequence< double > argbToDoubleSequence( const Gdiplus::ARGB& rColor ) |
| { |
| // TODO(F1): handle color space conversions, when defined on canvas/graphicDevice |
| uno::Sequence< double > aRet(4); |
| |
| aRet[0] = ((rColor >> 16) & 0xFF) / 255.0; // red |
| aRet[1] = ((rColor >> 8) & 0xFF) / 255.0; // green |
| aRet[2] = (rColor & 0xFF) / 255.0; // blue |
| aRet[3] = ((rColor >> 24) & 0xFF) / 255.0; // alpha |
| |
| return aRet; |
| } |
| |
| uno::Sequence< sal_Int8 > argbToIntSequence( const Gdiplus::ARGB& rColor ) |
| { |
| // TODO(F1): handle color space conversions, when defined on canvas/graphicDevice |
| uno::Sequence< sal_Int8 > aRet(4); |
| |
| aRet[0] = static_cast<sal_Int8>((rColor >> 16) & 0xFF); // red |
| aRet[1] = static_cast<sal_Int8>((rColor >> 8) & 0xFF); // green |
| aRet[2] = static_cast<sal_Int8>(rColor & 0xFF); // blue |
| aRet[3] = static_cast<sal_Int8>((rColor >> 24) & 0xFF); // alpha |
| |
| return aRet; |
| } |
| |
| Gdiplus::ARGB sequenceToArgb( const uno::Sequence< sal_Int8 >& rColor ) |
| { |
| ENSURE_OR_THROW( rColor.getLength() > 2, |
| "sequenceToArgb: need at least three channels" ); |
| |
| // TODO(F1): handle color space conversions, when defined on canvas/graphicDevice |
| Gdiplus::ARGB aColor; |
| |
| aColor = (static_cast<sal_uInt8>(rColor[0]) << 16) | (static_cast<sal_uInt8>(rColor[1]) << 8) | static_cast<sal_uInt8>(rColor[2]); |
| |
| if( rColor.getLength() > 3 ) |
| aColor |= static_cast<sal_uInt8>(rColor[3]) << 24; |
| |
| return aColor; |
| } |
| |
| Gdiplus::ARGB sequenceToArgb( const uno::Sequence< double >& rColor ) |
| { |
| ENSURE_OR_THROW( rColor.getLength() > 2, |
| "sequenceToColor: need at least three channels" ); |
| |
| // TODO(F1): handle color space conversions, when defined on canvas/graphicDevice |
| Gdiplus::ARGB aColor; |
| |
| ::canvas::tools::verifyRange(rColor[0],0.0,1.0); |
| ::canvas::tools::verifyRange(rColor[1],0.0,1.0); |
| ::canvas::tools::verifyRange(rColor[2],0.0,1.0); |
| |
| aColor = |
| (static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[0] ) ) << 16) | |
| (static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[1] ) ) << 8) | |
| static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[2] ) ); |
| |
| if( rColor.getLength() > 3 ) |
| { |
| ::canvas::tools::verifyRange(rColor[3],0.0,1.0); |
| aColor |= static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[3] ) ) << 24; |
| } |
| |
| return aColor; |
| } |
| |
| GraphicsPathSharedPtr graphicsPathFromRealPoint2DSequence( const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >& points ) |
| { |
| GraphicsPathSharedPtr pRes( new Gdiplus::GraphicsPath() ); |
| ::std::vector< Gdiplus::PointF > aPoints; |
| |
| sal_Int32 nCurrPoly; |
| for( nCurrPoly=0; nCurrPoly<points.getLength(); ++nCurrPoly ) |
| { |
| const sal_Int32 nCurrSize( points[nCurrPoly].getLength() ); |
| if( nCurrSize ) |
| { |
| aPoints.resize( nCurrSize ); |
| |
| // TODO(F1): Closed/open polygons |
| |
| // convert from RealPoint2D array to Gdiplus::PointF array |
| ::std::transform( const_cast< uno::Sequence< geometry::RealPoint2D >& >(points[nCurrPoly]).getArray(), |
| const_cast< uno::Sequence< geometry::RealPoint2D >& >(points[nCurrPoly]).getArray()+nCurrSize, |
| aPoints.begin(), |
| implGdiPlusPointFromRealPoint2D ); |
| |
| pRes->AddLines( &aPoints[0], nCurrSize ); |
| } |
| } |
| |
| return pRes; |
| } |
| |
| GraphicsPathSharedPtr graphicsPathFromB2DPolygon( const ::basegfx::B2DPolygon& rPoly, bool bNoLineJoin ) |
| { |
| GraphicsPathSharedPtr pRes( new Gdiplus::GraphicsPath() ); |
| ::std::vector< Gdiplus::PointF > aPoints; |
| |
| graphicsPathFromB2DPolygon( pRes, aPoints, rPoly, bNoLineJoin ); |
| |
| return pRes; |
| } |
| |
| GraphicsPathSharedPtr graphicsPathFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPoly, bool bNoLineJoin ) |
| { |
| GraphicsPathSharedPtr pRes( new Gdiplus::GraphicsPath() ); |
| ::std::vector< Gdiplus::PointF > aPoints; |
| |
| const sal_uInt32 nPolies( rPoly.count() ); |
| for( sal_uInt32 nCurrPoly=0; nCurrPoly<nPolies; ++nCurrPoly ) |
| { |
| graphicsPathFromB2DPolygon( pRes, |
| aPoints, |
| rPoly.getB2DPolygon( nCurrPoly ), |
| bNoLineJoin); |
| } |
| |
| return pRes; |
| } |
| |
| GraphicsPathSharedPtr graphicsPathFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly, bool bNoLineJoin ) |
| { |
| LinePolyPolygon* pPolyImpl = dynamic_cast< LinePolyPolygon* >( xPoly.get() ); |
| |
| if( pPolyImpl ) |
| { |
| return pPolyImpl->getGraphicsPath( bNoLineJoin ); |
| } |
| else |
| { |
| return tools::graphicsPathFromB2DPolyPolygon( |
| polyPolygonFromXPolyPolygon2D( xPoly ), bNoLineJoin ); |
| } |
| } |
| |
| bool drawGdiPlusBitmap( const GraphicsSharedPtr& rGraphics, |
| const BitmapSharedPtr& rBitmap ) |
| { |
| Gdiplus::PointF aPoint; |
| return (Gdiplus::Ok == rGraphics->DrawImage( rBitmap.get(), |
| aPoint ) ); |
| } |
| |
| bool drawDIBits( const GraphicsSharedPtr& rGraphics, |
| const BITMAPINFO& rBI, |
| const void* pBits ) |
| { |
| BitmapSharedPtr pBitmap( |
| Gdiplus::Bitmap::FromBITMAPINFO( &rBI, |
| (void*)pBits ) ); |
| |
| return drawGdiPlusBitmap( rGraphics, |
| pBitmap ); |
| } |
| |
| bool drawRGBABits( const GraphicsSharedPtr& rGraphics, |
| const RawRGBABitmap& rRawRGBAData ) |
| { |
| BitmapSharedPtr pBitmap( new Gdiplus::Bitmap( rRawRGBAData.mnWidth, |
| rRawRGBAData.mnHeight, |
| PixelFormat32bppARGB ) ); |
| |
| Gdiplus::BitmapData aBmpData; |
| aBmpData.Width = rRawRGBAData.mnWidth; |
| aBmpData.Height = rRawRGBAData.mnHeight; |
| aBmpData.Stride = 4*aBmpData.Width; // bottom-up format |
| aBmpData.PixelFormat = PixelFormat32bppARGB; |
| aBmpData.Scan0 = rRawRGBAData.mpBitmapData.get(); |
| |
| const Gdiplus::Rect aRect( 0,0,aBmpData.Width,aBmpData.Height ); |
| if( Gdiplus::Ok != pBitmap->LockBits( &aRect, |
| Gdiplus::ImageLockModeWrite | Gdiplus::ImageLockModeUserInputBuf, |
| PixelFormat32bppARGB, |
| &aBmpData ) ) |
| { |
| return false; |
| } |
| |
| // commit data to bitmap |
| pBitmap->UnlockBits( &aBmpData ); |
| |
| return drawGdiPlusBitmap( rGraphics, |
| pBitmap ); |
| } |
| |
| BitmapSharedPtr bitmapFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap ) |
| { |
| BitmapProvider* pBitmapProvider = dynamic_cast< BitmapProvider* >(xBitmap.get()); |
| |
| if( pBitmapProvider ) |
| { |
| IBitmapSharedPtr pBitmap( pBitmapProvider->getBitmap() ); |
| return pBitmap->getBitmap(); |
| } |
| else |
| { |
| // not a native CanvasBitmap, extract VCL bitmap and |
| // render into GDI+ bitmap of similar size |
| // ================================================= |
| |
| const geometry::IntegerSize2D aBmpSize( xBitmap->getSize() ); |
| BitmapSharedPtr pBitmap; |
| |
| if( xBitmap->hasAlpha() ) |
| { |
| // TODO(P2): At least for the alpha bitmap case, it |
| // would be possible to generate the corresponding |
| // bitmap directly |
| pBitmap.reset( new Gdiplus::Bitmap( aBmpSize.Width, |
| aBmpSize.Height, |
| PixelFormat32bppARGB ) ); |
| } |
| else |
| { |
| // TODO(F2): Might be wise to create bitmap compatible |
| // to the VCL bitmap. Also, check whether the VCL |
| // bitmap's system handles can be used to create the |
| // GDI+ bitmap (currently, it does not seem so). |
| pBitmap.reset( new Gdiplus::Bitmap( aBmpSize.Width, |
| aBmpSize.Height, |
| PixelFormat24bppRGB ) ); |
| } |
| |
| GraphicsSharedPtr pGraphics(createGraphicsFromBitmap(pBitmap)); |
| tools::setupGraphics(*pGraphics); |
| if( !drawVCLBitmapFromXBitmap( |
| pGraphics, |
| xBitmap) ) |
| { |
| pBitmap.reset(); |
| } |
| |
| return pBitmap; |
| } |
| } |
| |
| CanvasFont::ImplRef canvasFontFromXFont( const uno::Reference< rendering::XCanvasFont >& xFont ) |
| { |
| CanvasFont* pCanvasFont = dynamic_cast< CanvasFont* >(xFont.get()); |
| |
| ENSURE_ARG_OR_THROW( pCanvasFont, |
| "canvasFontFromXFont(): Invalid XFont (or incompatible font for this XCanvas)" ); |
| |
| return CanvasFont::ImplRef( pCanvasFont ); |
| } |
| |
| void setModulateImageAttributes( Gdiplus::ImageAttributes& o_rAttr, |
| double nRedModulation, |
| double nGreenModulation, |
| double nBlueModulation, |
| double nAlphaModulation ) |
| { |
| // This gets rather verbose, but we have to setup a color |
| // transformation matrix, in order to incorporate the global |
| // alpha value mfAlpha into the bitmap rendering. |
| Gdiplus::ColorMatrix aColorMatrix; |
| |
| aColorMatrix.m[0][0] = static_cast<Gdiplus::REAL>(nRedModulation); |
| aColorMatrix.m[0][1] = 0.0; |
| aColorMatrix.m[0][2] = 0.0; |
| aColorMatrix.m[0][3] = 0.0; |
| aColorMatrix.m[0][4] = 0.0; |
| |
| aColorMatrix.m[1][0] = 0.0; |
| aColorMatrix.m[1][1] = static_cast<Gdiplus::REAL>(nGreenModulation); |
| aColorMatrix.m[1][2] = 0.0; |
| aColorMatrix.m[1][3] = 0.0; |
| aColorMatrix.m[1][4] = 0.0; |
| |
| aColorMatrix.m[2][0] = 0.0; |
| aColorMatrix.m[2][1] = 0.0; |
| aColorMatrix.m[2][2] = static_cast<Gdiplus::REAL>(nBlueModulation); |
| aColorMatrix.m[2][3] = 0.0; |
| aColorMatrix.m[2][4] = 0.0; |
| |
| aColorMatrix.m[3][0] = 0.0; |
| aColorMatrix.m[3][1] = 0.0; |
| aColorMatrix.m[3][2] = 0.0; |
| aColorMatrix.m[3][3] = static_cast<Gdiplus::REAL>(nAlphaModulation); |
| aColorMatrix.m[3][4] = 0.0; |
| |
| aColorMatrix.m[4][0] = 0.0; |
| aColorMatrix.m[4][1] = 0.0; |
| aColorMatrix.m[4][2] = 0.0; |
| aColorMatrix.m[4][3] = 0.0; |
| aColorMatrix.m[4][4] = 1.0; |
| |
| o_rAttr.SetColorMatrix( &aColorMatrix, |
| Gdiplus::ColorMatrixFlagsDefault, |
| Gdiplus::ColorAdjustTypeDefault ); |
| } |
| |
| } // namespace tools |
| } // namespace dxcanvas |
