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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 <tools/long.hxx>
#include <vcl/outdev.hxx>
#include <memory>
#include <vector>
#include <com/sun/star/i18n/WordType.hpp>
#include <com/sun/star/i18n/XBreakIterator.hpp>
#include <com/sun/star/linguistic2/LinguServiceManager.hpp>
class Control;
namespace vcl
{
class VCL_DLLPUBLIC TextLayoutCommon
{
public:
virtual tools::Long GetTextWidth( const OUString& _rText, sal_Int32 _nStartIndex, sal_Int32 _nLength ) const = 0;
virtual void DrawText( const Point& _rStartPoint, const OUString& _rText, sal_Int32 _nStartIndex, sal_Int32 _nLength,
std::vector< tools::Rectangle >* _pVector, OUString* _pDisplayText ) = 0;
virtual tools::Long GetTextArray( const OUString& _rText, KernArray* _pDXArray, sal_Int32 _nStartIndex, sal_Int32 _nLength, bool bCaret = false ) const = 0;
virtual sal_Int32 GetTextBreak( const OUString& _rText, tools::Long _nMaxTextWidth, sal_Int32 _nStartIndex, sal_Int32 _nLength ) const = 0;
virtual bool DecomposeTextRectAction() const = 0;
SAL_DLLPRIVATE OUString GetEllipsisString(OUString const& rOrigStr, tools::Long nMaxWidth, DrawTextFlags nStyle);
std::tuple<sal_Int32, sal_Int32> BreakLine(const tools::Long nWidth, OUString const& rStr,
css::uno::Reference< css::linguistic2::XHyphenator > const& xHyph,
css::uno::Reference<css::i18n::XBreakIterator>& xBI,
const bool bHyphenate, const tools::Long nOrigLineWidth,
const sal_Int32 nPos, const sal_Int32 nLen);
SAL_DLLPRIVATE std::tuple<sal_Int32, sal_Int32> BreakLineSimple(const tools::Long nWidth, OUString const& rStr,
const sal_Int32 nPos, sal_Int32 nBreakPos, const tools::Long nOrigLineWidth);
SAL_DLLPRIVATE tools::Long GetTextLines(tools::Rectangle const& rRect, const tools::Long nTextHeight,
ImplMultiTextLineInfo& rLineInfo,
tools::Long nWidth, OUString const& rStr,
DrawTextFlags nStyle);
protected:
SAL_DLLPRIVATE ~TextLayoutCommon() COVERITY_NOEXCEPT_FALSE;
private:
SAL_DLLPRIVATE OUString GetCenterEllipsisString(std::u16string_view rOrigStr, sal_Int32 nIndex, tools::Long nMaxWidth);
SAL_DLLPRIVATE OUString GetEndEllipsisString(OUString const& rOrigStr, sal_Int32 nIndex, tools::Long nMaxWidth, bool bClipText);
SAL_DLLPRIVATE OUString GetNewsEllipsisString(OUString const& rOrigStr, tools::Long nMaxWidth, DrawTextFlags nStyle);
};
/** is an implementation of TextLayoutCommon which simply delegates its calls to the respective
methods of an OutputDevice instance, without any inbetween magic.
*/
class VCL_DLLPUBLIC DefaultTextLayout final : public TextLayoutCommon
{
public:
DefaultTextLayout( OutputDevice& _rTargetDevice )
: m_rTargetDevice( _rTargetDevice )
{
}
virtual ~DefaultTextLayout();
// TextLayoutCommon overridables
SAL_DLLPRIVATE virtual tools::Long GetTextWidth( const OUString& _rText,
sal_Int32 _nStartIndex,
sal_Int32 _nLength ) const override;
virtual void DrawText( const Point& _rStartPoint,
const OUString& _rText,
sal_Int32 _nStartIndex,
sal_Int32 _nLength,
std::vector< tools::Rectangle >* _pVector,
OUString* _pDisplayText ) override;
SAL_DLLPRIVATE virtual tools::Long GetTextArray( const OUString& _rText,
KernArray* _pDXArray,
sal_Int32 _nStartIndex,
sal_Int32 _nLength,
bool bCaret = false ) const override;
SAL_DLLPRIVATE virtual sal_Int32 GetTextBreak( const OUString& _rText,
tools::Long _nMaxTextWidth,
sal_Int32 _nStartIndex,
sal_Int32 _nLength ) const override;
SAL_DLLPRIVATE virtual bool DecomposeTextRectAction() const override;
private:
OutputDevice& m_rTargetDevice;
};
class ReferenceDeviceTextLayout;
/** a class which allows rendering text of a Control onto a device, by taking into account the metrics of
a reference device.
*/
class ControlTextRenderer final
{
public:
ControlTextRenderer( const Control& _rControl, OutputDevice& _rTargetDevice, OutputDevice& _rReferenceDevice );
~ControlTextRenderer();
tools::Rectangle DrawText( const tools::Rectangle& _rRect,
const OUString& _rText, DrawTextFlags _nStyle,
std::vector< tools::Rectangle >* _pVector, OUString* _pDisplayText, const Size* i_pDeviceSize );
tools::Rectangle GetTextRect( const tools::Rectangle& _rRect,
const OUString& _rText, DrawTextFlags _nStyle, Size* o_pDeviceSize );
private:
ControlTextRenderer( const ControlTextRenderer& ) = delete;
ControlTextRenderer& operator=( const ControlTextRenderer& ) = delete;
private:
::std::unique_ptr< ReferenceDeviceTextLayout > m_pImpl;
};
} // namespace vcl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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