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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /include/drawinglayer/primitive2d/textlayoutdevice.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream.tar.xz libreoffice-upstream.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/drawinglayer/primitive2d/textlayoutdevice.hxx | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/include/drawinglayer/primitive2d/textlayoutdevice.hxx b/include/drawinglayer/primitive2d/textlayoutdevice.hxx new file mode 100644 index 000000000..93587769c --- /dev/null +++ b/include/drawinglayer/primitive2d/textlayoutdevice.hxx @@ -0,0 +1,127 @@ +/* -*- 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 . + */ + +#pragma once + +#include <drawinglayer/drawinglayerdllapi.h> + +#include <basegfx/range/b2drange.hxx> +#include <vector> +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <vcl/svapp.hxx> + +// predefines +class VirtualDevice; +class GDIMetaFile; +enum class DrawTextFlags; +namespace vcl +{ +class Font; +} +namespace tools +{ +class Rectangle; +} +namespace drawinglayer::attribute +{ +class FontAttribute; +} +namespace com::sun::star::lang +{ +struct Locale; +} + +// access to one global impTimedRefDev incarnation in namespace drawinglayer::primitive + +namespace drawinglayer::primitive2d +{ +/** TextLayouterDevice class + + This helper class exists to isolate all accesses to VCL + text formatting/handling functionality for primitive implementations. + When in the future FontHandling may move to an own library independent + from VCL, primitives will be prepared. + */ +class DRAWINGLAYER_DLLPUBLIC TextLayouterDevice +{ + /// internally used VirtualDevice + SolarMutexGuard maSolarGuard; + VirtualDevice& mrDevice; + +public: + /// constructor/destructor + TextLayouterDevice(); + ~TextLayouterDevice() COVERITY_NOEXCEPT_FALSE; + + /// tooling methods + void setFont(const vcl::Font& rFont); + void setFontAttribute(const attribute::FontAttribute& rFontAttribute, double fFontScaleX, + double fFontScaleY, const css::lang::Locale& rLocale); + + double getTextHeight() const; + double getOverlineHeight() const; + double getOverlineOffset() const; + double getUnderlineHeight() const; + double getUnderlineOffset() const; + double getStrikeoutOffset() const; + + double getTextWidth(const OUString& rText, sal_uInt32 nIndex, sal_uInt32 nLength) const; + + void getTextOutlines(basegfx::B2DPolyPolygonVector&, const OUString& rText, sal_uInt32 nIndex, + sal_uInt32 nLength, const ::std::vector<double>& rDXArray) const; + + basegfx::B2DRange getTextBoundRect(const OUString& rText, sal_uInt32 nIndex, + sal_uInt32 nLength) const; + + double getFontAscent() const; + double getFontDescent() const; + + void addTextRectActions(const tools::Rectangle& rRectangle, const OUString& rText, + DrawTextFlags nStyle, GDIMetaFile& rGDIMetaFile) const; + + ::std::vector<double> getTextArray(const OUString& rText, sal_uInt32 nIndex, + sal_uInt32 nLength) const; + + ::std::vector<double> getCaretPositions(const OUString& rText, sal_uInt32 nIndex, + sal_uInt32 nLength) const; +}; + +// helper methods for vcl font handling + +/** Create a VCL-Font based on the definitions in FontAttribute + and the given FontScaling. The FontScaling defines the FontHeight + (fFontScaleY) and the FontWidth (fFontScaleX). The combination of + both defines FontStretching, where no stretching happens at + fFontScaleY == fFontScaleX + */ +vcl::Font DRAWINGLAYER_DLLPUBLIC getVclFontFromFontAttribute( + const attribute::FontAttribute& rFontAttribute, double fFontScaleX, double fFontScaleY, + double fFontRotation, const css::lang::Locale& rLocale); + +/** Generate FontAttribute DataSet derived from the given VCL-Font. + The FontScaling with fFontScaleY, fFontScaleX relationship (see + above) will be set in return parameter o_rSize to allow further + processing + */ +attribute::FontAttribute DRAWINGLAYER_DLLPUBLIC getFontAttributeFromVclFont( + basegfx::B2DVector& o_rSize, const vcl::Font& rFont, bool bRTL, bool bBiDiStrong); + +} // end of namespace drawinglayer::primitive2d + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |