summaryrefslogtreecommitdiffstats
path: root/cppcanvas/source/mtfrenderer/mtftools.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'cppcanvas/source/mtfrenderer/mtftools.cxx')
-rw-r--r--cppcanvas/source/mtfrenderer/mtftools.cxx671
1 files changed, 671 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/mtftools.cxx b/cppcanvas/source/mtfrenderer/mtftools.cxx
new file mode 100644
index 000000000..0181fa78e
--- /dev/null
+++ b/cppcanvas/source/mtfrenderer/mtftools.cxx
@@ -0,0 +1,671 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * 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 .
+ */
+
+
+#include <tools/diagnose_ex.h>
+#include <com/sun/star/rendering/XCanvas.hpp>
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/vector/b2dvector.hxx>
+#include <canvas/canvastools.hxx>
+#include <rtl/math.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/metric.hxx>
+#include "mtftools.hxx"
+#include <outdevstate.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+
+
+using namespace ::com::sun::star;
+
+namespace cppcanvas::tools
+{
+ void initRenderState( rendering::RenderState& renderState,
+ const ::cppcanvas::internal::OutDevState& outdevState )
+ {
+ ::canvas::tools::initRenderState( renderState );
+ ::canvas::tools::setRenderStateTransform( renderState,
+ outdevState.transform );
+ renderState.Clip = outdevState.xClipPoly;
+ }
+
+ ::Size getBaselineOffset( const ::cppcanvas::internal::OutDevState& outdevState,
+ const VirtualDevice& rVDev )
+ {
+ const ::FontMetric& aMetric = rVDev.GetFontMetric();
+
+ // calc offset for text output, the XCanvas always renders
+ // baseline offset.
+ switch( outdevState.textReferencePoint )
+ {
+ case ALIGN_TOP:
+ return ::Size( 0,
+ aMetric.GetInternalLeading() + aMetric.GetAscent() );
+
+ case ALIGN_BASELINE:
+ return ::Size( 0, 0 );
+
+ case ALIGN_BOTTOM:
+ return ::Size( 0,
+ -aMetric.GetDescent() );
+
+ default:
+ throw css::uno::RuntimeException(
+ "tools::getBaselineOffset(): Unexpected TextAlign value" );
+ }
+ }
+
+ ::basegfx::B2DHomMatrix& calcLogic2PixelLinearTransform( ::basegfx::B2DHomMatrix& o_rMatrix,
+ const VirtualDevice& rVDev )
+ {
+ // select size value in the middle of the available range,
+ // to have headroom both when map mode scales up, and when
+ // it scales down.
+ const ::Size aSizeLogic( 0x00010000L,
+ 0x00010000L );
+
+ const ::Size aSizePixel( rVDev.LogicToPixel( aSizeLogic ) );
+
+ o_rMatrix = basegfx::utils::createScaleB2DHomMatrix(
+ aSizePixel.Width() / static_cast<double>(aSizeLogic.Width()),
+ aSizePixel.Height() / static_cast<double>(aSizeLogic.Height()) );
+
+ return o_rMatrix;
+ }
+
+ ::basegfx::B2DHomMatrix& calcLogic2PixelAffineTransform( ::basegfx::B2DHomMatrix& o_rMatrix,
+ const VirtualDevice& rVDev )
+ {
+ // retrieves scale
+ calcLogic2PixelLinearTransform(o_rMatrix, rVDev);
+
+ // translate according to curr map mode/pref map mode offset
+ const ::Point aEmptyPoint;
+ const ::Point& rTranslatedPoint(
+ rVDev.LogicToPixel( aEmptyPoint ));
+
+ o_rMatrix.translate(rTranslatedPoint.X(),
+ rTranslatedPoint.Y());
+
+ return o_rMatrix;
+ }
+
+ bool modifyClip( rendering::RenderState& o_rRenderState,
+ const struct ::cppcanvas::internal::OutDevState& rOutdevState,
+ const CanvasSharedPtr& rCanvas,
+ const ::basegfx::B2DPoint& rOffset,
+ const ::basegfx::B2DVector* pScaling,
+ const double* pRotation )
+ {
+ const bool bOffsetting( !rOffset.equalZero() );
+ const bool bScaling( pScaling &&
+ !rtl::math::approxEqual(pScaling->getX(), 1.0) &&
+ !rtl::math::approxEqual(pScaling->getY(), 1.0) );
+ const bool bRotation( pRotation &&
+ *pRotation != 0.0 );
+
+ if( !bOffsetting && !bScaling && !bRotation )
+ return false; // nothing to do
+
+ if( rOutdevState.clip.count() )
+ {
+ // general polygon case
+
+ ::basegfx::B2DPolyPolygon aLocalClip( rOutdevState.clip );
+ ::basegfx::B2DHomMatrix aTransform;
+
+ if( bOffsetting )
+ aTransform.translate( -rOffset.getX(),
+ -rOffset.getY() );
+ if( bScaling )
+ aTransform.scale( 1.0/pScaling->getX(), 1.0/pScaling->getY() );
+
+ if( bRotation )
+ aTransform.rotate( - *pRotation );
+
+ aLocalClip.transform( aTransform );
+
+ o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+ rCanvas->getUNOCanvas()->getDevice(),
+ aLocalClip );
+
+ return true;
+ }
+ else if( !rOutdevState.clipRect.IsEmpty() )
+ {
+ // simple rect case
+
+ const ::tools::Rectangle aLocalClipRect( rOutdevState.clipRect );
+
+ if( bRotation )
+ {
+ // rotation involved - convert to polygon first,
+ // then transform that
+ ::basegfx::B2DPolygon aLocalClip(
+ ::basegfx::utils::createPolygonFromRect(
+ vcl::unotools::b2DRectangleFromRectangle(aLocalClipRect) ) );
+ ::basegfx::B2DHomMatrix aTransform;
+
+ if( bOffsetting )
+ aTransform.translate( -rOffset.getX(),
+ -rOffset.getY() );
+ if( bScaling )
+ aTransform.scale( 1.0/pScaling->getX(), 1.0/pScaling->getY() );
+
+ aTransform.rotate( - *pRotation );
+
+ aLocalClip.transform( aTransform );
+
+ o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+ rCanvas->getUNOCanvas()->getDevice(),
+ ::basegfx::B2DPolyPolygon( aLocalClip ) );
+ }
+ else if( bScaling )
+ {
+ // scale and offset - do it on the fly, have to
+ // convert to float anyway.
+ o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+ rCanvas->getUNOCanvas()->getDevice(),
+ ::basegfx::B2DPolyPolygon(
+ ::basegfx::utils::createPolygonFromRect(
+ ::basegfx::B2DRectangle(
+ (aLocalClipRect.Left() - rOffset.getX())/pScaling->getX(),
+ (aLocalClipRect.Top() - rOffset.getY())/pScaling->getY(),
+ (aLocalClipRect.Right() - rOffset.getX())/pScaling->getX(),
+ (aLocalClipRect.Bottom() - rOffset.getY())/pScaling->getY() ) ) ) );
+ }
+ else
+ {
+ // offset only - do it on the fly, have to convert
+ // to float anyway.
+ o_rRenderState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+ rCanvas->getUNOCanvas()->getDevice(),
+ ::basegfx::B2DPolyPolygon(
+ ::basegfx::utils::createPolygonFromRect(
+ ::basegfx::B2DRectangle( aLocalClipRect.Left() - rOffset.getX(),
+ aLocalClipRect.Top() - rOffset.getY(),
+ aLocalClipRect.Right() - rOffset.getX(),
+ aLocalClipRect.Bottom() - rOffset.getY() ) ) ) );
+ }
+
+ return true;
+ }
+
+ // empty clip, nothing to do
+ return false;
+ }
+
+ // create overline/underline/strikeout line info struct
+ TextLineInfo createTextLineInfo( const ::VirtualDevice& rVDev,
+ const ::cppcanvas::internal::OutDevState& rState )
+ {
+ const bool bOldMode( rVDev.IsMapModeEnabled() );
+
+ // #i68512# Force metric regeneration with mapmode enabled
+ // (prolly OutDev bug)
+ rVDev.GetFontMetric();
+
+ // will restore map mode below
+ const_cast< ::VirtualDevice& >(rVDev).EnableMapMode( false );
+
+ const ::FontMetric aMetric = rVDev.GetFontMetric();
+
+ TextLineInfo aTextInfo(
+ (aMetric.GetDescent() + 2) / 4.0,
+ ((aMetric.GetInternalLeading() + 1.5) / 3.0),
+ (aMetric.GetInternalLeading() / 2.0) - aMetric.GetAscent(),
+ aMetric.GetDescent() / 2.0,
+ (aMetric.GetInternalLeading() - aMetric.GetAscent()) / 3.0,
+ rState.textOverlineStyle,
+ rState.textUnderlineStyle,
+ rState.textStrikeoutStyle );
+
+ const_cast< ::VirtualDevice& >(rVDev).EnableMapMode( bOldMode );
+
+ return aTextInfo;
+ }
+
+ namespace
+ {
+ void appendWaveline( ::basegfx::B2DPolyPolygon& o_rPoly,
+ const ::basegfx::B2DPoint& rStartPos,
+ const double nStartOffset,
+ const double nWidth,
+ const double nHeight,
+ sal_Int8 nLineStyle)
+ {
+ const double x(rStartPos.getX());
+ const double y(rStartPos.getY() + nStartOffset + nHeight);
+ double nWaveWidth = nHeight * 10.6 * 0.25;
+ // Offset for the double line.
+ double nOffset = 0.0;
+
+ if (nLineStyle == LINESTYLE_DOUBLEWAVE)
+ nOffset = -nHeight * 0.5;
+ else
+ nWaveWidth *= 2.0;
+
+ basegfx::B2DPolygon aLine;
+ aLine.append(basegfx::B2DPoint(x, y + nOffset));
+ aLine.append(basegfx::B2DPoint(x + nWidth, y + nOffset));
+
+ o_rPoly.append(::basegfx::utils::createWaveline(aLine, nWaveWidth, nWaveWidth * 0.5));
+
+ if (nLineStyle == LINESTYLE_DOUBLEWAVE)
+ {
+ nOffset = nHeight * 1.2;
+
+ basegfx::B2DPolygon aLine2;
+ aLine2.append(basegfx::B2DPoint(x, y + nOffset));
+ aLine2.append(basegfx::B2DPoint(x + nWidth, y + nOffset));
+ o_rPoly.append(::basegfx::utils::createWaveline(aLine2, nWaveWidth, nWaveWidth * 0.5));
+ }
+ }
+
+ void appendRect( ::basegfx::B2DPolyPolygon& o_rPoly,
+ const ::basegfx::B2DPoint& rStartPos,
+ const double nX1,
+ const double nY1,
+ const double nX2,
+ const double nY2 )
+ {
+ const double x( rStartPos.getX() );
+ const double y( rStartPos.getY() );
+
+ o_rPoly.append(
+ ::basegfx::utils::createPolygonFromRect(
+ ::basegfx::B2DRectangle( x + nX1, y + nY1, x + nX2, y + nY2 ) ) );
+ }
+
+ void appendRect( ::basegfx::B2DPolyPolygon& o_rPoly,
+ const double nX1,
+ const double nY1,
+ const double nX2,
+ const double nY2 )
+ {
+ o_rPoly.append(
+ ::basegfx::utils::createPolygonFromRect(
+ ::basegfx::B2DRectangle( nX1, nY1, nX2, nY2 ) ) );
+ }
+
+ bool appendDashes( ::basegfx::B2DPolyPolygon& o_rPoly,
+ const double nX,
+ double nY,
+ const double nLineWidth,
+ double nLineHeight,
+ sal_Int8 nLineStyle,
+ bool bIsOverline)
+ {
+ static const int aDottedArray[] = { 1, 1, 0}; // DOTTED LINE
+ static const int aDotDashArray[] = { 1, 1, 4, 1, 0}; // DASHDOT
+ static const int aDashDotDotArray[] = { 1, 1, 1, 1, 4, 1, 0}; // DASHDOTDOT
+ static const int aDashedArray[] = { 5, 2, 0}; // DASHED LINE
+ static const int aLongDashArray[] = { 7, 2, 0}; // LONGDASH
+ const int *pArray = nullptr;
+ bool bIsBold = false;
+
+ switch(nLineStyle)
+ {
+ case LINESTYLE_BOLDDOTTED:
+ bIsBold = true;
+ [[fallthrough]];
+ case LINESTYLE_DOTTED:
+ pArray = aDottedArray;
+ break;
+
+ case LINESTYLE_BOLDDASH:
+ bIsBold = true;
+ [[fallthrough]];
+ case LINESTYLE_DASH:
+ pArray = aDashedArray;
+ break;
+
+ case LINESTYLE_BOLDLONGDASH:
+ bIsBold = true;
+ [[fallthrough]];
+ case LINESTYLE_LONGDASH:
+ pArray = aLongDashArray;
+ break;
+
+ case LINESTYLE_BOLDDASHDOT:
+ bIsBold = true;
+ [[fallthrough]];
+ case LINESTYLE_DASHDOT:
+ pArray = aDotDashArray;
+ break;
+ case LINESTYLE_BOLDDASHDOTDOT:
+ bIsBold = true;
+ [[fallthrough]];
+ case LINESTYLE_DASHDOTDOT:
+ pArray = aDashDotDotArray;
+ break;
+ }
+
+ if (!pArray)
+ return false;
+
+ if (bIsBold)
+ {
+ if (bIsOverline)
+ nY -= nLineHeight;
+
+ nLineHeight *= 2;
+ }
+
+ const double nEnd = nX + nLineWidth;
+ sal_Int32 nIndex = 0;
+ bool bAppend = true;
+ double nX1 = nX;
+
+ while(nX1 < nEnd)
+ {
+ if (pArray[nIndex] == 0)
+ nIndex = 0;
+
+ const double nX2 = std::min(nEnd, nX1 + pArray[nIndex] * nLineHeight);
+
+ if (bAppend)
+ appendRect(o_rPoly, nX1, nY, nX2, nY + nLineHeight);
+
+ nX1 = nX2;
+
+ ++nIndex;
+
+ bAppend = !bAppend;
+ }
+ return true;
+ }
+
+ // create line actions for text such as underline and
+ // strikeout
+ void createOverlinePolyPolygon(::basegfx::B2DPolyPolygon& rTextLinesPolyPoly,
+ const ::basegfx::B2DPoint& rStartPos,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo)
+ {
+ switch( rTextLineInfo.mnOverlineStyle )
+ {
+ case LINESTYLE_NONE: // nothing to do
+ case LINESTYLE_DONTKNOW:
+ break;
+
+ case LINESTYLE_DOUBLEWAVE:
+ case LINESTYLE_SMALLWAVE:
+ case LINESTYLE_BOLDWAVE:
+ case LINESTYLE_WAVE:
+ appendWaveline(
+ rTextLinesPolyPoly,
+ rStartPos,
+ rTextLineInfo.mnOverlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnOverlineHeight,
+ rTextLineInfo.mnOverlineStyle);
+
+ break;
+ case LINESTYLE_SINGLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnOverlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnOverlineOffset + rTextLineInfo.mnOverlineHeight );
+ break;
+ case LINESTYLE_BOLD:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnOverlineOffset - rTextLineInfo.mnOverlineHeight,
+ rLineWidth,
+ rTextLineInfo.mnOverlineOffset + rTextLineInfo.mnOverlineHeight );
+ break;
+
+ case LINESTYLE_DOUBLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnOverlineOffset - rTextLineInfo.mnOverlineHeight * 2.0 ,
+ rLineWidth,
+ rTextLineInfo.mnOverlineOffset - rTextLineInfo.mnOverlineHeight );
+
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnOverlineOffset + rTextLineInfo.mnOverlineHeight,
+ rLineWidth,
+ rTextLineInfo.mnOverlineOffset + rTextLineInfo.mnOverlineHeight * 2.0 );
+ break;
+
+ default:
+ if (!appendDashes(
+ rTextLinesPolyPoly,
+ rStartPos.getX(),
+ rStartPos.getY() + rTextLineInfo.mnOverlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnOverlineHeight,
+ rTextLineInfo.mnOverlineStyle,
+ true))
+ {
+ ENSURE_OR_THROW( false,
+ "::cppcanvas::internal::createTextLinesPolyPolygon(): Unexpected overline case" );
+ }
+ }
+ }
+
+ void createUnderlinePolyPolygon(::basegfx::B2DPolyPolygon& rTextLinesPolyPoly,
+ const ::basegfx::B2DPoint& rStartPos,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo )
+ {
+
+ switch( rTextLineInfo.mnUnderlineStyle )
+ {
+ case LINESTYLE_NONE: // nothing to do
+ case LINESTYLE_DONTKNOW:
+ break;
+
+ case LINESTYLE_DOUBLEWAVE:
+ case LINESTYLE_SMALLWAVE:
+ case LINESTYLE_BOLDWAVE:
+ case LINESTYLE_WAVE:
+ appendWaveline(
+ rTextLinesPolyPoly,
+ rStartPos,
+ rTextLineInfo.mnUnderlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnLineHeight,
+ rTextLineInfo.mnUnderlineStyle);
+ break;
+ case LINESTYLE_SINGLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnUnderlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnUnderlineOffset + rTextLineInfo.mnLineHeight );
+ break;
+
+ case LINESTYLE_BOLD:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnUnderlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnUnderlineOffset + 2*rTextLineInfo.mnLineHeight );
+ break;
+
+ case LINESTYLE_DOUBLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnUnderlineOffset - rTextLineInfo.mnLineHeight,
+ rLineWidth,
+ rTextLineInfo.mnUnderlineOffset );
+
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnUnderlineOffset + 2*rTextLineInfo.mnLineHeight,
+ rLineWidth,
+ rTextLineInfo.mnUnderlineOffset + 3*rTextLineInfo.mnLineHeight );
+ break;
+
+ default:
+ if (!appendDashes(
+ rTextLinesPolyPoly,
+ rStartPos.getX(),
+ rStartPos.getY() + rTextLineInfo.mnUnderlineOffset,
+ rLineWidth,
+ rTextLineInfo.mnLineHeight,
+ rTextLineInfo.mnUnderlineStyle,
+ false))
+ {
+ ENSURE_OR_THROW( false,
+ "::cppcanvas::internal::createTextLinesPolyPolygon(): Unexpected underline case" );
+ }
+ }
+ }
+
+ void createStrikeoutPolyPolygon(::basegfx::B2DPolyPolygon& rTextLinesPolyPoly,
+ const ::basegfx::B2DPoint& rStartPos,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo)
+ {
+ switch( rTextLineInfo.mnStrikeoutStyle )
+ {
+ case STRIKEOUT_NONE: // nothing to do
+ case STRIKEOUT_DONTKNOW:
+ break;
+
+ case STRIKEOUT_SLASH: // TODO(Q1): we should handle this in the text layer
+ case STRIKEOUT_X:
+ break;
+
+ case STRIKEOUT_SINGLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnStrikeoutOffset,
+ rLineWidth,
+ rTextLineInfo.mnStrikeoutOffset + rTextLineInfo.mnLineHeight );
+ break;
+
+ case STRIKEOUT_BOLD:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnStrikeoutOffset,
+ rLineWidth,
+ rTextLineInfo.mnStrikeoutOffset + 2*rTextLineInfo.mnLineHeight );
+ break;
+
+ case STRIKEOUT_DOUBLE:
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnStrikeoutOffset - rTextLineInfo.mnLineHeight,
+ rLineWidth,
+ rTextLineInfo.mnStrikeoutOffset );
+
+ appendRect(
+ rTextLinesPolyPoly,
+ rStartPos,
+ 0,
+ rTextLineInfo.mnStrikeoutOffset + 2*rTextLineInfo.mnLineHeight,
+ rLineWidth,
+ rTextLineInfo.mnStrikeoutOffset + 3*rTextLineInfo.mnLineHeight );
+ break;
+
+ default:
+ ENSURE_OR_THROW( false,
+ "::cppcanvas::internal::createTextLinesPolyPolygon(): Unexpected strikeout case" );
+ }
+ }
+ }
+
+ ::basegfx::B2DPolyPolygon createTextLinesPolyPolygon( const ::basegfx::B2DPoint& rStartPos,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo )
+ {
+ // fill the polypolygon with all text lines
+ ::basegfx::B2DPolyPolygon aTextLinesPolyPoly;
+
+ createOverlinePolyPolygon(aTextLinesPolyPoly, rStartPos, rLineWidth, rTextLineInfo);
+ createUnderlinePolyPolygon(aTextLinesPolyPoly, rStartPos, rLineWidth, rTextLineInfo);
+ createStrikeoutPolyPolygon(aTextLinesPolyPoly, rStartPos, rLineWidth, rTextLineInfo);
+ return aTextLinesPolyPoly;
+ }
+
+ ::basegfx::B2DRange calcDevicePixelBounds( const ::basegfx::B2DRange& rBounds,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ::basegfx::B2DHomMatrix aTransform;
+ ::canvas::tools::mergeViewAndRenderTransform( aTransform,
+ viewState,
+ renderState );
+
+ ::basegfx::B2DRange aTransformedBounds;
+ return ::canvas::tools::calcTransformedRectBounds( aTransformedBounds,
+ rBounds,
+ aTransform );
+ }
+
+ // create line actions for text such as underline and
+ // strikeout
+ ::basegfx::B2DPolyPolygon createTextLinesPolyPolygon( const double& rStartOffset,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo )
+ {
+ return createTextLinesPolyPolygon(
+ ::basegfx::B2DPoint( rStartOffset,
+ 0.0 ),
+ rLineWidth,
+ rTextLineInfo );
+ }
+
+ void createTextLinesPolyPolygon( const double& rStartOffset,
+ const double& rLineWidth,
+ const TextLineInfo& rTextLineInfo,
+ ::basegfx::B2DPolyPolygon& rOverlinePolyPoly,
+ ::basegfx::B2DPolyPolygon& rUnderlinePolyPoly,
+ ::basegfx::B2DPolyPolygon& rStrikeoutPolyPoly )
+ {
+ ::basegfx::B2DPoint aStartPos(rStartOffset, 0.0);
+
+ createOverlinePolyPolygon(rOverlinePolyPoly, aStartPos, rLineWidth, rTextLineInfo);
+ createUnderlinePolyPolygon(rUnderlinePolyPoly, aStartPos, rLineWidth, rTextLineInfo);
+ createStrikeoutPolyPolygon(rStrikeoutPolyPoly, aStartPos, rLineWidth, rTextLineInfo);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */