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-rw-r--r--cppcanvas/source/mtfrenderer/textlineshelper.cxx125
1 files changed, 125 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/textlineshelper.cxx b/cppcanvas/source/mtfrenderer/textlineshelper.cxx
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+++ b/cppcanvas/source/mtfrenderer/textlineshelper.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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/.
+ */
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+#include <com/sun/star/rendering/StrokeAttributes.hpp>
+#include <com/sun/star/rendering/PathJoinType.hpp>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <outdevstate.hxx>
+#include <utility>
+#include "textlineshelper.hxx"
+#include "mtftools.hxx"
+
+using namespace ::com::sun::star;
+
+namespace
+{
+void initLineStyleWaveline(sal_uInt32 nLineStyle, bool& bIsWaveline, bool& bIsBold)
+{
+ bIsWaveline = nLineStyle == LINESTYLE_DOUBLEWAVE || nLineStyle == LINESTYLE_SMALLWAVE
+ || nLineStyle == LINESTYLE_BOLDWAVE || nLineStyle == LINESTYLE_WAVE;
+ bIsBold = nLineStyle == LINESTYLE_BOLDWAVE;
+}
+}
+
+namespace cppcanvas::internal
+{
+TextLinesHelper::TextLinesHelper(CanvasSharedPtr xCanvas, const OutDevState& rState)
+ : mpCanvas(std::move(xCanvas))
+ , mbIsOverlineColorSet(rState.isTextOverlineColorSet)
+ , maOverlineColor(rState.textOverlineColor)
+ , mbIsUnderlineColorSet(rState.isTextLineColorSet)
+ , maUnderlineColor(rState.textLineColor)
+ , mbOverlineWaveline(false)
+ , mbUnderlineWaveline(false)
+ , mbOverlineWavelineBold(false)
+ , mbUnderlineWavelineBold(false)
+{
+}
+
+void TextLinesHelper::init(double nLineWidth, const tools::TextLineInfo& rLineInfo)
+{
+ ::basegfx::B2DRange aRange; // default is empty.
+ ::basegfx::B2DPolyPolygon aOverline, aUnderline, aStrikeout;
+ tools::createTextLinesPolyPolygon(0.0, nLineWidth, rLineInfo, aOverline, aUnderline,
+ aStrikeout);
+
+ mxOverline.clear();
+ mxUnderline.clear();
+ mxStrikeout.clear();
+
+ uno::Reference<rendering::XGraphicDevice> xDevice = mpCanvas->getUNOCanvas()->getDevice();
+
+ if (aOverline.count())
+ {
+ aRange.expand(::basegfx::utils::getRange(aOverline));
+ mxOverline = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(xDevice, aOverline);
+ }
+
+ if (aUnderline.count())
+ {
+ aRange.expand(::basegfx::utils::getRange(aUnderline));
+ mxUnderline = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(xDevice, aUnderline);
+ }
+
+ if (aStrikeout.count())
+ {
+ aRange.expand(::basegfx::utils::getRange(aStrikeout));
+ mxStrikeout = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(xDevice, aStrikeout);
+ }
+
+ maOverallSize = aRange.getRange();
+
+ initLineStyleWaveline(rLineInfo.mnOverlineStyle, mbOverlineWaveline, mbOverlineWavelineBold);
+
+ initLineStyleWaveline(rLineInfo.mnUnderlineStyle, mbUnderlineWaveline, mbUnderlineWavelineBold);
+}
+
+void TextLinesHelper::render(const rendering::RenderState& rRenderState, bool bNormalText) const
+{
+ const rendering::ViewState& rViewState(mpCanvas->getViewState());
+ const uno::Reference<rendering::XCanvas>& xCanvas(mpCanvas->getUNOCanvas());
+ rendering::StrokeAttributes aStrokeAttributes;
+ aStrokeAttributes.JoinType = rendering::PathJoinType::ROUND;
+
+ if (mxOverline.is())
+ {
+ rendering::RenderState aLocalState(rRenderState);
+ if (bNormalText && mbIsOverlineColorSet)
+ aLocalState.DeviceColor = maOverlineColor;
+
+ if (mbOverlineWaveline)
+ {
+ aStrokeAttributes.StrokeWidth = mbOverlineWavelineBold ? 2.0 : 1.0;
+ xCanvas->strokePolyPolygon(mxOverline, rViewState, aLocalState, aStrokeAttributes);
+ }
+ else
+ xCanvas->fillPolyPolygon(mxOverline, rViewState, aLocalState);
+ }
+
+ if (mxUnderline.is())
+ {
+ rendering::RenderState aLocalState(rRenderState);
+ if (bNormalText && mbIsUnderlineColorSet)
+ aLocalState.DeviceColor = maUnderlineColor;
+ if (mbUnderlineWaveline)
+ {
+ aStrokeAttributes.StrokeWidth = mbUnderlineWavelineBold ? 2.0 : 1.0;
+ xCanvas->strokePolyPolygon(mxUnderline, rViewState, aLocalState, aStrokeAttributes);
+ }
+ else
+ xCanvas->fillPolyPolygon(mxUnderline, rViewState, aLocalState);
+ }
+
+ if (mxStrikeout.is())
+ xCanvas->fillPolyPolygon(mxStrikeout, rViewState, rRenderState);
+}
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */