53ec7e3b2c
Another code-review follow-up fix from fdo#44533 - don't use Sequence::getArray, that tends to create a new copy everytime you call.
669 lines
28 KiB
C++
669 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <ctype.h> // don't ask. msdev breaks otherwise...
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#include <basegfx/numeric/ftools.hxx>
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#include <canvas/debug.hxx>
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#include <canvas/verbosetrace.hxx>
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#include <tools/diagnose_ex.h>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/lang/XUnoTunnel.hpp>
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#include <com/sun/star/geometry/RealPoint2D.hpp>
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#include <com/sun/star/geometry/IntegerRectangle2D.hpp>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/range/b2irectangle.hxx>
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#include <basegfx/range/b2drectangle.hxx>
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#include <basegfx/polygon/b2dpolygon.hxx>
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#include <basegfx/polygon/b2dpolypolygon.hxx>
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#include <basegfx/tools/canvastools.hxx>
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#include <canvas/canvastools.hxx>
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#include <canvas/verifyinput.hxx>
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#include "dx_impltools.hxx"
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#include "dx_vcltools.hxx"
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#include "dx_linepolypolygon.hxx"
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#include "dx_canvasbitmap.hxx"
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#include "dx_canvasfont.hxx"
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#include "dx_canvas.hxx"
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#include "dx_spritecanvas.hxx"
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#include <boost/scoped_array.hpp>
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#include <vector>
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#include <algorithm>
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using namespace ::com::sun::star;
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namespace dxcanvas
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{
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namespace tools
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{
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::basegfx::B2DPolyPolygon polyPolygonFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly )
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{
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LinePolyPolygon* pPolyImpl = dynamic_cast< LinePolyPolygon* >( xPoly.get() );
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if( pPolyImpl )
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{
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return pPolyImpl->getPolyPolygon();
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}
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else
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{
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const sal_Int32 nPolys( xPoly->getNumberOfPolygons() );
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// not a known implementation object - try data source
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// interfaces
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uno::Reference< rendering::XBezierPolyPolygon2D > xBezierPoly(
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xPoly,
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uno::UNO_QUERY );
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if( xBezierPoly.is() )
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{
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return ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence(
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xBezierPoly->getBezierSegments( 0,
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nPolys,
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0,
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-1 ) );
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}
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else
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{
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uno::Reference< rendering::XLinePolyPolygon2D > xLinePoly(
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xPoly,
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uno::UNO_QUERY );
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// no implementation class and no data provider
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// found - contract violation.
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ENSURE_ARG_OR_THROW( xLinePoly.is(),
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"VCLCanvas::polyPolygonFromXPolyPolygon2D(): Invalid input "
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"poly-polygon, cannot retrieve vertex data" );
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return ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence(
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xLinePoly->getPoints( 0,
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nPolys,
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0,
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-1 ) );
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}
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}
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}
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void setupGraphics( Gdiplus::Graphics& rGraphics )
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{
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// setup graphics with (somewhat arbitrary) defaults
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//rGraphics.SetCompositingQuality( Gdiplus::CompositingQualityHighQuality );
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rGraphics.SetCompositingQuality( Gdiplus::CompositingQualityHighSpeed );
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//rGraphics.SetInterpolationMode( Gdiplus::InterpolationModeHighQualityBilinear ); // with prefiltering for shrinks
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rGraphics.SetInterpolationMode( Gdiplus::InterpolationModeBilinear );
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// #122683# Switched precedence of pixel offset
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// mode. Seemingly, polygon stroking needs
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// PixelOffsetModeNone to achieve visually pleasing
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// results, whereas all other operations (e.g. polygon
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// fills, bitmaps) look better with PixelOffsetModeHalf.
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rGraphics.SetPixelOffsetMode( Gdiplus::PixelOffsetModeHalf ); // Pixel center at (0.5, 0.5) etc.
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//rGraphics.SetPixelOffsetMode( Gdiplus::PixelOffsetModeNone );
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//rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeHighSpeed ); // no line/curve antialiasing
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//rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeHighQuality );
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rGraphics.SetSmoothingMode( Gdiplus::SmoothingModeAntiAlias );
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//rGraphics.SetTextRenderingHint( Gdiplus::TextRenderingHintAntiAlias );
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rGraphics.SetTextRenderingHint( Gdiplus::TextRenderingHintSystemDefault );
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rGraphics.SetPageUnit(Gdiplus::UnitPixel);
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}
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Gdiplus::Graphics* createGraphicsFromHDC(HDC aHDC)
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{
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Gdiplus::Graphics* pRet = new Gdiplus::Graphics(aHDC);
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if( pRet )
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setupGraphics( *pRet );
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return pRet;
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}
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Gdiplus::Graphics* createGraphicsFromBitmap(const BitmapSharedPtr& rBitmap)
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{
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Gdiplus::Graphics* pRet = Gdiplus::Graphics::FromImage(rBitmap.get());
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if( pRet )
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setupGraphics( *pRet );
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return pRet;
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}
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void gdiPlusMatrixFromB2DHomMatrix( Gdiplus::Matrix& rGdiplusMatrix, const ::basegfx::B2DHomMatrix& rMatrix )
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{
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rGdiplusMatrix.SetElements( static_cast<Gdiplus::REAL>(rMatrix.get(0,0)),
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static_cast<Gdiplus::REAL>(rMatrix.get(1,0)),
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static_cast<Gdiplus::REAL>(rMatrix.get(0,1)),
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static_cast<Gdiplus::REAL>(rMatrix.get(1,1)),
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static_cast<Gdiplus::REAL>(rMatrix.get(0,2)),
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static_cast<Gdiplus::REAL>(rMatrix.get(1,2)) );
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}
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void gdiPlusMatrixFromAffineMatrix2D( Gdiplus::Matrix& rGdiplusMatrix,
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const geometry::AffineMatrix2D& rMatrix )
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{
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rGdiplusMatrix.SetElements( static_cast<Gdiplus::REAL>(rMatrix.m00),
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static_cast<Gdiplus::REAL>(rMatrix.m10),
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static_cast<Gdiplus::REAL>(rMatrix.m01),
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static_cast<Gdiplus::REAL>(rMatrix.m11),
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static_cast<Gdiplus::REAL>(rMatrix.m02),
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static_cast<Gdiplus::REAL>(rMatrix.m12) );
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}
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namespace
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{
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// TODO(P2): Check whether this gets inlined. If not, make functor
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// out of it
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inline Gdiplus::PointF implGdiPlusPointFromRealPoint2D( const ::com::sun::star::geometry::RealPoint2D& rPoint )
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{
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return Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.X),
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static_cast<Gdiplus::REAL>(rPoint.Y) );
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}
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void graphicsPathFromB2DPolygon( GraphicsPathSharedPtr& rOutput,
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::std::vector< Gdiplus::PointF >& rPoints,
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const ::basegfx::B2DPolygon& rPoly,
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bool bNoLineJoin)
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{
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const sal_uInt32 nPoints( rPoly.count() );
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if( nPoints < 2 )
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return;
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rOutput->StartFigure();
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const bool bClosedPolygon( rPoly.isClosed() );
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if( rPoly.areControlPointsUsed() )
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{
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// control points used -> for now, add all
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// segments as curves to GraphicsPath
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// If the polygon is closed, we need to add the
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// first point, thus, one more (can't simply
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// GraphicsPath::CloseFigure() it, since the last
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// point cannot have any control points for GDI+)
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rPoints.resize( 3*nPoints + bClosedPolygon );
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sal_uInt32 nCurrOutput=0;
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for( sal_uInt32 nCurrPoint=0; nCurrPoint<nPoints; ++nCurrPoint )
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{
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const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint( nCurrPoint ) );
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rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()),
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static_cast<Gdiplus::REAL>(rPoint.getY()) );
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const ::basegfx::B2DPoint& rControlPointA( rPoly.getNextControlPoint( nCurrPoint ) );
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rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rControlPointA.getX()),
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static_cast<Gdiplus::REAL>(rControlPointA.getY()) );
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const ::basegfx::B2DPoint& rControlPointB( rPoly.getPrevControlPoint( (nCurrPoint + 1) % nPoints) );
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rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rControlPointB.getX()),
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static_cast<Gdiplus::REAL>(rControlPointB.getY()) );
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}
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if( bClosedPolygon )
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{
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// add first point again (to be able to pass
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// control points for the last point, see
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// above)
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const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint(0) );
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rPoints[nCurrOutput++] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()),
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static_cast<Gdiplus::REAL>(rPoint.getY()) );
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if(bNoLineJoin && nCurrOutput > 7)
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{
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for(sal_uInt32 a(3); a < nCurrOutput; a+=3)
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{
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rOutput->StartFigure();
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rOutput->AddBezier(rPoints[a - 3], rPoints[a - 2], rPoints[a - 1], rPoints[a]);
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}
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}
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else
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{
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rOutput->AddBeziers( &rPoints[0], nCurrOutput );
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}
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}
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else
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{
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// GraphicsPath expects 3(n-1)+1 points (i.e. the
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// last point must not have any trailing control
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// points after it).
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// Therefore, simply don't pass the last two
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// points here.
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if( nCurrOutput > 3 )
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{
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if(bNoLineJoin && nCurrOutput > 7)
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{
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for(sal_uInt32 a(3); a < nCurrOutput; a+=3)
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{
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rOutput->StartFigure();
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rOutput->AddBezier(rPoints[a - 3], rPoints[a - 2], rPoints[a - 1], rPoints[a]);
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}
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}
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else
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{
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rOutput->AddBeziers( &rPoints[0], nCurrOutput-2 );
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}
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}
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}
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}
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else
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{
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// no control points -> no curves, simply add
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// straigt lines to GraphicsPath
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rPoints.resize( nPoints );
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for( sal_uInt32 nCurrPoint=0; nCurrPoint<nPoints; ++nCurrPoint )
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{
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const ::basegfx::B2DPoint& rPoint( rPoly.getB2DPoint( nCurrPoint ) );
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rPoints[nCurrPoint] = Gdiplus::PointF( static_cast<Gdiplus::REAL>(rPoint.getX()),
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static_cast<Gdiplus::REAL>(rPoint.getY()) );
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}
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if(bNoLineJoin && nPoints > 2)
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{
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for(sal_uInt32 a(1); a < nPoints; a++)
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{
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rOutput->StartFigure();
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rOutput->AddLine(rPoints[a - 1], rPoints[a]);
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}
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if(bClosedPolygon)
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{
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rOutput->StartFigure();
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rOutput->AddLine(rPoints[nPoints - 1], rPoints[0]);
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}
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}
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else
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{
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rOutput->AddLines( &rPoints[0], nPoints );
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}
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}
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if( bClosedPolygon && !bNoLineJoin )
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rOutput->CloseFigure();
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}
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}
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Gdiplus::PointF gdiPlusPointFromRealPoint2D( const ::com::sun::star::geometry::RealPoint2D& rPoint )
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{
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return implGdiPlusPointFromRealPoint2D( rPoint );
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}
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Gdiplus::Rect gdiPlusRectFromIntegerRectangle2D( const geometry::IntegerRectangle2D& rRect )
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{
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return Gdiplus::Rect( rRect.X1,
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rRect.Y1,
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rRect.X2 - rRect.X1,
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rRect.Y2 - rRect.Y1 );
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}
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Gdiplus::RectF gdiPlusRectFFromRectangle2D( const geometry::RealRectangle2D& rRect )
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{
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return Gdiplus::RectF( static_cast<Gdiplus::REAL>(rRect.X1),
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static_cast<Gdiplus::REAL>(rRect.Y1),
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static_cast<Gdiplus::REAL>(rRect.X2 - rRect.X1),
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static_cast<Gdiplus::REAL>(rRect.Y2 - rRect.Y1) );
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}
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RECT gdiRectFromB2IRect( const ::basegfx::B2IRange& rRect )
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{
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RECT aRect = {rRect.getMinX(),
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rRect.getMinY(),
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rRect.getMaxX(),
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rRect.getMaxY()};
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return aRect;
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}
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geometry::RealPoint2D realPoint2DFromGdiPlusPointF( const Gdiplus::PointF& rPoint )
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{
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return geometry::RealPoint2D( rPoint.X, rPoint.Y );
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}
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geometry::RealRectangle2D realRectangle2DFromGdiPlusRectF( const Gdiplus::RectF& rRect )
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{
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return geometry::RealRectangle2D( rRect.X, rRect.Y,
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rRect.X + rRect.Width,
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rRect.Y + rRect.Height );
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}
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::basegfx::B2DPoint b2dPointFromGdiPlusPointF( const Gdiplus::PointF& rPoint )
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{
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return ::basegfx::B2DPoint( rPoint.X, rPoint.Y );
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}
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::basegfx::B2DRange b2dRangeFromGdiPlusRectF( const Gdiplus::RectF& rRect )
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{
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return ::basegfx::B2DRange( rRect.X, rRect.Y,
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rRect.X + rRect.Width,
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rRect.Y + rRect.Height );
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}
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uno::Sequence< double > argbToDoubleSequence( const Gdiplus::ARGB& rColor )
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{
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// TODO(F1): handle color space conversions, when defined on canvas/graphicDevice
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uno::Sequence< double > aRet(4);
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aRet[0] = ((rColor >> 16) & 0xFF) / 255.0; // red
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aRet[1] = ((rColor >> 8) & 0xFF) / 255.0; // green
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aRet[2] = (rColor & 0xFF) / 255.0; // blue
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aRet[3] = ((rColor >> 24) & 0xFF) / 255.0; // alpha
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return aRet;
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}
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uno::Sequence< sal_Int8 > argbToIntSequence( const Gdiplus::ARGB& rColor )
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{
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// TODO(F1): handle color space conversions, when defined on canvas/graphicDevice
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uno::Sequence< sal_Int8 > aRet(4);
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aRet[0] = static_cast<sal_Int8>((rColor >> 16) & 0xFF); // red
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aRet[1] = static_cast<sal_Int8>((rColor >> 8) & 0xFF); // green
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aRet[2] = static_cast<sal_Int8>(rColor & 0xFF); // blue
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aRet[3] = static_cast<sal_Int8>((rColor >> 24) & 0xFF); // alpha
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return aRet;
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}
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Gdiplus::ARGB sequenceToArgb( const uno::Sequence< sal_Int8 >& rColor )
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{
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ENSURE_OR_THROW( rColor.getLength() > 2,
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"sequenceToArgb: need at least three channels" );
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// TODO(F1): handle color space conversions, when defined on canvas/graphicDevice
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Gdiplus::ARGB aColor;
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aColor = (static_cast<sal_uInt8>(rColor[0]) << 16) | (static_cast<sal_uInt8>(rColor[1]) << 8) | static_cast<sal_uInt8>(rColor[2]);
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if( rColor.getLength() > 3 )
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aColor |= static_cast<sal_uInt8>(rColor[3]) << 24;
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return aColor;
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}
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Gdiplus::ARGB sequenceToArgb( const uno::Sequence< double >& rColor )
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{
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ENSURE_OR_THROW( rColor.getLength() > 2,
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"sequenceToColor: need at least three channels" );
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// TODO(F1): handle color space conversions, when defined on canvas/graphicDevice
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Gdiplus::ARGB aColor;
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::canvas::tools::verifyRange(rColor[0],0.0,1.0);
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::canvas::tools::verifyRange(rColor[1],0.0,1.0);
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::canvas::tools::verifyRange(rColor[2],0.0,1.0);
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aColor =
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(static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[0] ) ) << 16) |
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(static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[1] ) ) << 8) |
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static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[2] ) );
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if( rColor.getLength() > 3 )
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{
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::canvas::tools::verifyRange(rColor[3],0.0,1.0);
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aColor |= static_cast<sal_uInt8>( ::basegfx::fround( 255*rColor[3] ) ) << 24;
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}
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return aColor;
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}
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GraphicsPathSharedPtr graphicsPathFromRealPoint2DSequence( const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >& points )
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{
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GraphicsPathSharedPtr pRes( new Gdiplus::GraphicsPath() );
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::std::vector< Gdiplus::PointF > aPoints;
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sal_Int32 nCurrPoly;
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for( nCurrPoly=0; nCurrPoly<points.getLength(); ++nCurrPoly )
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{
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const sal_Int32 nCurrSize( points[nCurrPoly].getLength() );
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if( nCurrSize )
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{
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aPoints.resize( nCurrSize );
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// TODO(F1): Closed/open polygons
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// convert from RealPoint2D array to Gdiplus::PointF array
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::std::transform( points[nCurrPoly].getConstArray(),
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points[nCurrPoly].getConstArray()+nCurrSize,
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aPoints.begin(),
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implGdiPlusPointFromRealPoint2D );
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|
|
|
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
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|