forked from amazingfate/loongoffice
9f7999c628
Change-Id: Ia80a0331246b4e25cdc3387c50bd97c6befc4ea4 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106382 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
128 lines
4.5 KiB
C++
128 lines
4.5 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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#pragma once
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <basegfx/range/b2drange.hxx>
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#include <vector>
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#include <basegfx/polygon/b2dpolypolygon.hxx>
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#include <vcl/svapp.hxx>
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// predefines
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class VirtualDevice;
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class GDIMetaFile;
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enum class DrawTextFlags;
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namespace vcl
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{
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class Font;
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}
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namespace tools
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{
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class Rectangle;
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}
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namespace drawinglayer::attribute
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{
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class FontAttribute;
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}
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namespace com::sun::star::lang
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{
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struct Locale;
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}
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// access to one global impTimedRefDev incarnation in namespace drawinglayer::primitive
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namespace drawinglayer::primitive2d
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{
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/** TextLayouterDevice class
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This helper class exists to isolate all accesses to VCL
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text formatting/handling functionality for primitive implementations.
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When in the future FontHandling may move to an own library independent
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from VCL, primitives will be prepared.
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*/
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class DRAWINGLAYER_DLLPUBLIC TextLayouterDevice
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{
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/// internally used VirtualDevice
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SolarMutexGuard maSolarGuard;
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VirtualDevice& mrDevice;
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public:
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/// constructor/destructor
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TextLayouterDevice();
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~TextLayouterDevice() COVERITY_NOEXCEPT_FALSE;
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/// tooling methods
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void setFont(const vcl::Font& rFont);
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void setFontAttribute(const attribute::FontAttribute& rFontAttribute, double fFontScaleX,
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double fFontScaleY, const css::lang::Locale& rLocale);
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double getTextHeight() const;
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double getOverlineHeight() const;
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double getOverlineOffset() const;
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double getUnderlineHeight() const;
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double getUnderlineOffset() const;
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double getStrikeoutOffset() const;
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double getTextWidth(const OUString& rText, sal_uInt32 nIndex, sal_uInt32 nLength) const;
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void getTextOutlines(basegfx::B2DPolyPolygonVector&, const OUString& rText, sal_uInt32 nIndex,
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sal_uInt32 nLength, const ::std::vector<double>& rDXArray) const;
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basegfx::B2DRange getTextBoundRect(const OUString& rText, sal_uInt32 nIndex,
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sal_uInt32 nLength) const;
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double getFontAscent() const;
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double getFontDescent() const;
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void addTextRectActions(const tools::Rectangle& rRectangle, const OUString& rText,
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DrawTextFlags nStyle, GDIMetaFile& rGDIMetaFile) const;
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::std::vector<double> getTextArray(const OUString& rText, sal_uInt32 nIndex,
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sal_uInt32 nLength) const;
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::std::vector<double> getCaretPositions(const OUString& rText, sal_uInt32 nIndex,
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sal_uInt32 nLength) const;
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};
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// helper methods for vcl font handling
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/** Create a VCL-Font based on the definitions in FontAttribute
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and the given FontScaling. The FontScaling defines the FontHeight
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(fFontScaleY) and the FontWidth (fFontScaleX). The combination of
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both defines FontStretching, where no stretching happens at
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fFontScaleY == fFontScaleX
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*/
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vcl::Font DRAWINGLAYER_DLLPUBLIC getVclFontFromFontAttribute(
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const attribute::FontAttribute& rFontAttribute, double fFontScaleX, double fFontScaleY,
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double fFontRotation, const css::lang::Locale& rLocale);
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/** Generate FontAttribute DataSet derived from the given VCL-Font.
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The FontScaling with fFontScaleY, fFontScaleX relationship (see
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above) will be set in return parameter o_rSize to allow further
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processing
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*/
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attribute::FontAttribute DRAWINGLAYER_DLLPUBLIC getFontAttributeFromVclFont(
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basegfx::B2DVector& o_rSize, const vcl::Font& rFont, bool bRTL, bool bBiDiStrong);
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} // end of namespace drawinglayer::primitive2d
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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