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/* -*- 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;
namespace vcl { class Font; }
class GDIMetaFile;
namespace tools { class Rectangle; }
enum class DrawTextFlags;
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;
};
// 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: */
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