1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ***********************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef VCL_TEXTLAYOUT_HXX 29*cdf0e10cSrcweir #define VCL_TEXTLAYOUT_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include "vcl/outdev.hxx" 32*cdf0e10cSrcweir 33*cdf0e10cSrcweir #include <tools/solar.h> 34*cdf0e10cSrcweir #include <tools/string.hxx> 35*cdf0e10cSrcweir 36*cdf0e10cSrcweir #include <memory> 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir class Control; 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir //........................................................................ 41*cdf0e10cSrcweir namespace vcl 42*cdf0e10cSrcweir { 43*cdf0e10cSrcweir //........................................................................ 44*cdf0e10cSrcweir 45*cdf0e10cSrcweir //==================================================================== 46*cdf0e10cSrcweir //= ITextLayout 47*cdf0e10cSrcweir //==================================================================== 48*cdf0e10cSrcweir class SAL_NO_VTABLE ITextLayout 49*cdf0e10cSrcweir { 50*cdf0e10cSrcweir public: 51*cdf0e10cSrcweir virtual long GetTextWidth( const XubString& _rText, xub_StrLen _nStartIndex, xub_StrLen _nLength ) const = 0; 52*cdf0e10cSrcweir virtual void DrawText( const Point& _rStartPoint, const XubString& _rText, xub_StrLen _nStartIndex, xub_StrLen _nLength, 53*cdf0e10cSrcweir MetricVector* _pVector, String* _pDisplayText ) = 0; 54*cdf0e10cSrcweir virtual bool GetCaretPositions( const XubString& _rText, sal_Int32* _pCaretXArray, xub_StrLen _nStartIndex, xub_StrLen _nLength ) const = 0; 55*cdf0e10cSrcweir virtual xub_StrLen GetTextBreak( const XubString& _rText, long _nMaxTextWidth, xub_StrLen _nStartIndex, xub_StrLen _nLength ) const = 0; 56*cdf0e10cSrcweir virtual bool DecomposeTextRectAction() const = 0; 57*cdf0e10cSrcweir }; 58*cdf0e10cSrcweir 59*cdf0e10cSrcweir //==================================================================== 60*cdf0e10cSrcweir //= DefaultTextLayout 61*cdf0e10cSrcweir //==================================================================== 62*cdf0e10cSrcweir /** is an implementation of the ITextLayout interface which simply delegates its calls to the respective 63*cdf0e10cSrcweir methods of an OutputDevice instance, without any inbetween magic. 64*cdf0e10cSrcweir */ 65*cdf0e10cSrcweir class DefaultTextLayout : public ITextLayout 66*cdf0e10cSrcweir { 67*cdf0e10cSrcweir public: 68*cdf0e10cSrcweir DefaultTextLayout( OutputDevice& _rTargetDevice ) 69*cdf0e10cSrcweir :m_rTargetDevice( _rTargetDevice ) 70*cdf0e10cSrcweir { 71*cdf0e10cSrcweir } 72*cdf0e10cSrcweir virtual ~DefaultTextLayout(); 73*cdf0e10cSrcweir 74*cdf0e10cSrcweir // ITextLayout overridables 75*cdf0e10cSrcweir virtual long GetTextWidth( 76*cdf0e10cSrcweir const XubString& _rText, 77*cdf0e10cSrcweir xub_StrLen _nStartIndex, 78*cdf0e10cSrcweir xub_StrLen _nLength 79*cdf0e10cSrcweir ) const; 80*cdf0e10cSrcweir virtual void DrawText( 81*cdf0e10cSrcweir const Point& _rStartPoint, 82*cdf0e10cSrcweir const XubString& _rText, 83*cdf0e10cSrcweir xub_StrLen _nStartIndex, 84*cdf0e10cSrcweir xub_StrLen _nLength, 85*cdf0e10cSrcweir MetricVector* _pVector, 86*cdf0e10cSrcweir String* _pDisplayText 87*cdf0e10cSrcweir ); 88*cdf0e10cSrcweir virtual bool GetCaretPositions( 89*cdf0e10cSrcweir const XubString& _rText, 90*cdf0e10cSrcweir sal_Int32* _pCaretXArray, 91*cdf0e10cSrcweir xub_StrLen _nStartIndex, 92*cdf0e10cSrcweir xub_StrLen _nLength 93*cdf0e10cSrcweir ) const; 94*cdf0e10cSrcweir virtual xub_StrLen GetTextBreak( 95*cdf0e10cSrcweir const XubString& _rText, 96*cdf0e10cSrcweir long _nMaxTextWidth, 97*cdf0e10cSrcweir xub_StrLen _nStartIndex, 98*cdf0e10cSrcweir xub_StrLen _nLength 99*cdf0e10cSrcweir ) const; 100*cdf0e10cSrcweir virtual bool DecomposeTextRectAction() const; 101*cdf0e10cSrcweir 102*cdf0e10cSrcweir private: 103*cdf0e10cSrcweir OutputDevice& m_rTargetDevice; 104*cdf0e10cSrcweir }; 105*cdf0e10cSrcweir 106*cdf0e10cSrcweir //==================================================================== 107*cdf0e10cSrcweir //= ControlTextRenderer 108*cdf0e10cSrcweir //==================================================================== 109*cdf0e10cSrcweir class ReferenceDeviceTextLayout; 110*cdf0e10cSrcweir /** a class which allows rendering text of a Control onto a device, by taking into account the metrics of 111*cdf0e10cSrcweir a reference device. 112*cdf0e10cSrcweir */ 113*cdf0e10cSrcweir class ControlTextRenderer 114*cdf0e10cSrcweir { 115*cdf0e10cSrcweir public: 116*cdf0e10cSrcweir ControlTextRenderer( const Control& _rControl, OutputDevice& _rTargetDevice, OutputDevice& _rReferenceDevice ); 117*cdf0e10cSrcweir virtual ~ControlTextRenderer(); 118*cdf0e10cSrcweir 119*cdf0e10cSrcweir Rectangle DrawText( const Rectangle& _rRect, 120*cdf0e10cSrcweir const XubString& _rText, sal_uInt16 _nStyle = 0, 121*cdf0e10cSrcweir MetricVector* _pVector = NULL, String* _pDisplayText = NULL ); 122*cdf0e10cSrcweir 123*cdf0e10cSrcweir private: 124*cdf0e10cSrcweir ControlTextRenderer(); // never implemented 125*cdf0e10cSrcweir ControlTextRenderer( const ControlTextRenderer& ); // never implemented 126*cdf0e10cSrcweir ControlTextRenderer& operator=( const ControlTextRenderer& ); // never implemented 127*cdf0e10cSrcweir 128*cdf0e10cSrcweir private: 129*cdf0e10cSrcweir ::std::auto_ptr< ReferenceDeviceTextLayout > m_pImpl; 130*cdf0e10cSrcweir }; 131*cdf0e10cSrcweir 132*cdf0e10cSrcweir //........................................................................ 133*cdf0e10cSrcweir } // namespace vcl 134*cdf0e10cSrcweir //........................................................................ 135*cdf0e10cSrcweir 136*cdf0e10cSrcweir #endif // VCL_TEXTLAYOUT_HXX 137