99 lines
4 KiB
C++
99 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <vcl/outdev.hxx>
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#include <font/EmphasisMark.hxx>
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#include <impglyphitem.hxx>
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#include <vcl/vcllayout.hxx>
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void OutputDevice::createEmphasisMarks(
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FontEmphasisMark nEmphasisMark, tools::Long nEmphasisHeight, SalLayout& rSalLayout,
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const std::function<void(const basegfx::B2DPoint&, const basegfx::B2DPolyPolygon&, bool,
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const tools::Rectangle&, const tools::Rectangle&)>& rCallback) const
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{
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// tooling method to create geometry data for EmphasisMarks. It does the same
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// as OutputDevice::ImplDrawEmphasisMarks, but feeds the data into the
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// callback for further usage
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vcl::font::EmphasisMark aEmphasisMark(nEmphasisMark, nEmphasisHeight, GetDPIY());
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Point aOffset(0, 0);
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Point aOffsetVert(0, 0);
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if (nEmphasisMark & FontEmphasisMark::PosBelow)
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{
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aOffset.AdjustY(mpFontInstance->mxFontMetric->GetDescent() + aEmphasisMark.GetYOffset());
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aOffsetVert = aOffset;
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}
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else
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{
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aOffset.AdjustY(-(mpFontInstance->mxFontMetric->GetAscent() + aEmphasisMark.GetYOffset()));
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// Todo: use ideographic em-box or ideographic character face information.
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aOffsetVert.AdjustY(-(mpFontInstance->mxFontMetric->GetAscent()
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+ mpFontInstance->mxFontMetric->GetDescent()
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+ aEmphasisMark.GetYOffset()));
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}
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tools::Long nEmphasisWidth2 = aEmphasisMark.GetWidth() / 2;
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tools::Long nEmphasisHeight2 = nEmphasisHeight / 2;
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aOffset += Point(nEmphasisWidth2, nEmphasisHeight2);
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basegfx::B2DPolyPolygon aShape(aEmphasisMark.GetShape().getB2DPolyPolygon());
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basegfx::B2DPoint aOutPoint;
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basegfx::B2DRectangle aRectangle;
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const GlyphItem* pGlyph;
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const LogicalFontInstance* pGlyphFont;
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int nStart = 0;
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while (rSalLayout.GetNextGlyph(&pGlyph, aOutPoint, nStart, &pGlyphFont))
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{
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if (!pGlyph->GetGlyphBoundRect(pGlyphFont, aRectangle))
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continue;
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if (!pGlyph->IsSpacing())
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{
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Point aAdjPoint;
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if (pGlyph->IsVertical())
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{
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aAdjPoint = aOffsetVert;
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aAdjPoint.AdjustX((-pGlyph->origWidth() + aEmphasisMark.GetWidth()) / 2);
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}
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else
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{
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aAdjPoint = aOffset;
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aAdjPoint.AdjustX(aRectangle.getMinX()
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+ (aRectangle.getWidth() - aEmphasisMark.GetWidth()) / 2);
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}
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if (mpFontInstance->mnOrientation)
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{
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Point aOriginPt(0, 0);
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aOriginPt.RotateAround(aAdjPoint, mpFontInstance->mnOrientation);
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}
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aOutPoint.adjustX(aAdjPoint.X() - nEmphasisWidth2);
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aOutPoint.adjustY(aAdjPoint.Y() - nEmphasisHeight2);
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// use callback to propagate the data to where it was requested from
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rCallback(aOutPoint, aShape, aEmphasisMark.IsShapePolyLine(), aEmphasisMark.GetRect1(),
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aEmphasisMark.GetRect2());
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}
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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