96699848ec
Change-Id: I85ea6cc60add141954c8b75f78a8024c872d7174 Reviewed-on: https://gerrit.libreoffice.org/3158 Reviewed-by: Michael Stahl <mstahl@redhat.com> Tested-by: Michael Stahl <mstahl@redhat.com>
133 lines
5.5 KiB
C++
133 lines
5.5 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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#ifndef VCL_TEXTLAYOUT_HXX
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#define VCL_TEXTLAYOUT_HXX
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#include "vcl/outdev.hxx"
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#include <tools/solar.h>
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#include <tools/string.hxx>
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#include <memory>
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class Control;
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//........................................................................
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namespace vcl
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{
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//........................................................................
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//====================================================================
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//= ITextLayout
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//====================================================================
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class SAL_NO_VTABLE ITextLayout
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{
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public:
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virtual long GetTextWidth( const OUString& _rText, sal_Int32 _nStartIndex, sal_Int32 _nLength ) const = 0;
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virtual void DrawText( const Point& _rStartPoint, const OUString& _rText, sal_Int32 _nStartIndex, sal_Int32 _nLength,
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MetricVector* _pVector, OUString* _pDisplayText ) = 0;
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virtual bool GetCaretPositions( const OUString& _rText, sal_Int32* _pCaretXArray, sal_Int32 _nStartIndex, sal_Int32 _nLength ) const = 0;
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virtual xub_StrLen GetTextBreak( const OUString& _rText, long _nMaxTextWidth, sal_Int32 _nStartIndex, sal_Int32 _nLength ) const = 0;
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virtual bool DecomposeTextRectAction() const = 0;
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protected:
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~ITextLayout() {}
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};
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//====================================================================
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//= DefaultTextLayout
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//====================================================================
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/** is an implementation of the ITextLayout interface which simply delegates its calls to the respective
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methods of an OutputDevice instance, without any inbetween magic.
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*/
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class DefaultTextLayout : public ITextLayout
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{
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public:
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DefaultTextLayout( OutputDevice& _rTargetDevice )
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:m_rTargetDevice( _rTargetDevice )
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{
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}
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virtual ~DefaultTextLayout();
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// ITextLayout overridables
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virtual long GetTextWidth(
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const OUString& _rText,
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sal_Int32 _nStartIndex,
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sal_Int32 _nLength
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) const;
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virtual void DrawText(
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const Point& _rStartPoint,
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const OUString& _rText,
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sal_Int32 _nStartIndex,
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sal_Int32 _nLength,
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MetricVector* _pVector,
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OUString* _pDisplayText
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);
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virtual bool GetCaretPositions(
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const OUString& _rText,
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sal_Int32* _pCaretXArray,
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sal_Int32 _nStartIndex,
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sal_Int32 _nLength
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) const;
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virtual xub_StrLen GetTextBreak(
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const OUString& _rText,
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long _nMaxTextWidth,
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sal_Int32 _nStartIndex,
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sal_Int32 _nLength
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) const;
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virtual bool DecomposeTextRectAction() const;
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private:
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OutputDevice& m_rTargetDevice;
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};
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//====================================================================
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//= ControlTextRenderer
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//====================================================================
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class ReferenceDeviceTextLayout;
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/** a class which allows rendering text of a Control onto a device, by taking into account the metrics of
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a reference device.
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*/
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class ControlTextRenderer
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{
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public:
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ControlTextRenderer( const Control& _rControl, OutputDevice& _rTargetDevice, OutputDevice& _rReferenceDevice );
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virtual ~ControlTextRenderer();
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Rectangle DrawText( const Rectangle& _rRect,
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const XubString& _rText, sal_uInt16 _nStyle = 0,
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MetricVector* _pVector = NULL, OUString* _pDisplayText = NULL );
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private:
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ControlTextRenderer(); // never implemented
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ControlTextRenderer( const ControlTextRenderer& ); // never implemented
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ControlTextRenderer& operator=( const ControlTextRenderer& ); // never implemented
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private:
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::std::auto_ptr< ReferenceDeviceTextLayout > m_pImpl;
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};
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//........................................................................
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} // namespace vcl
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//........................................................................
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#endif // VCL_TEXTLAYOUT_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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