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path: root/extensions/source/svg/svgaction.hxx
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _SVGACTION_HXX
#define _SVGACTION_HXX

#include "svgcom.hxx"

// --------------
// - FastString -
// --------------

class FastString
{
private:

    NMSP_RTL::OUString			maString;
    sal_Unicode*				mpBuffer;
    sal_uInt32					mnBufLen;
    sal_uInt32					mnCurLen;
    sal_uInt32					mnBufInc;
    sal_uInt32					mnPartPos;
                                
public:							
                                
                                FastString( sal_uInt32 nInitLen = 2048, sal_uInt32 nIncrement = 2048 );
                                FastString( sal_Char* pBufferForBase64Encoding, sal_uInt32 nBufLen );
                                ~FastString();
                                
    FastString&					operator+=( const NMSP_RTL::OUString& rStr );
                        
    const NMSP_RTL::OUString&	GetString() const;
    sal_Bool					GetFirstPartString( const sal_uInt32 nPartLen, NMSP_RTL::OUString& rPartString );
    sal_Bool					GetNextPartString( const sal_uInt32 nPartLen, NMSP_RTL::OUString& rPartString );

    sal_uInt32					GetLength() const { return mnCurLen; }
    void						Clear() { mnCurLen = 0, maString = NMSP_RTL::OUString(); }
};

// ----------------------
// - SVGAttributeWriter -
// ----------------------

class SVGActionWriter;

class SVGAttributeWriter
{
private:

    Font					maCurFont;
    Color					maCurLineColor;
    Color					maCurFillColor;
    SVGActionWriter&		mrParent;
    SvXMLExport&			mrExport;
    SvXMLElementExport*		mpElemFont;
    SvXMLElementExport*		mpElemPaint;

                            SVGAttributeWriter();

public:

                            SVGAttributeWriter( SVGActionWriter& rParent, SvXMLExport& rExport );
    virtual					~SVGAttributeWriter();

    NMSP_RTL::OUString		GetFontStyle( const Font& rFont );
    NMSP_RTL::OUString		GetPaintStyle( const Color& rLineColor, const Color& rFillColor );

    void					SetFontAttr( const Font& rFont );
    void					SetPaintAttr( const Color& rLineColor, const Color& rFillColor );
};

// -------------------
// - SVGActionWriter -
// -------------------

class SVGAttributeWriter;
class SvXMLExport;
class GDIMetaFile;

class SVGActionWriter
{
    friend class SVGAttributeWriter;

private:

    Stack					maContextStack;
    SvXMLExport&			mrExport;
    const GDIMetaFile&		mrMtf;
    SVGAttributeWriter*		mpContext;
    VirtualDevice*			mpVDev;
    MapMode					maTargetMapMode;
    sal_Int32				mnCurClipId;
    sal_Bool				mbDestroyVDev;
    sal_Bool				mbPaintAttrChanged;
    sal_Bool				mbFontAttrChanged;
    sal_Bool				mbClipAttrChanged;
    sal_Bool				mbDoublePoints;

    SVGAttributeWriter*		ImplAcquireContext() { maContextStack.Push( mpContext = new SVGAttributeWriter( *this, mrExport ) ); return mpContext; }
    void					ImplReleaseContext() { delete (SVGAttributeWriter*)	maContextStack.Pop(); mpContext = (SVGAttributeWriter*) maContextStack.Top(); }

    long					ImplMap( sal_Int32 nVal ) const; 
    Point					ImplMap( const Point& rPt ) const;
    Size					ImplMap( const Size& rSz ) const;
    inline Rectangle		ImplMap( const Rectangle& rRect ) const { return Rectangle( ImplMap( rRect.TopLeft() ), ImplMap( rRect.GetSize() ) ); }

    void					ImplWriteLine( const Point& rPt1, const Point& rPt2, const Color* pLineColor = NULL, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWriteRect( const Rectangle& rRect, long nRadX = 0, long nRadY = 0, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWriteEllipse( const Point& rCenter, long nRadX, long nRadY, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWritePolygon( const Polygon& rPoly, sal_Bool bLineOnly, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWritePolyPolygon( const PolyPolygon& rPolyPoly, sal_Bool bLineOnly, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWriteGradientEx( const PolyPolygon& rPolyPoly, const Gradient& rGradient, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWriteText( const Point& rPos, const String& rText, const sal_Int32* pDXArray, long nWidth, const NMSP_RTL::OUString* pStyle = NULL );
    void					ImplWriteBmp( const BitmapEx& rBmpEx, const Point& rPt, const Size& rSz, const Point& rSrcPt, const Size& rSrcSz, const NMSP_RTL::OUString* pStyle = NULL );

    void					ImplCheckFontAttributes();
    void					ImplCheckPaintAttributes();
    
    void					ImplWriteActions( const GDIMetaFile& rMtf, const NMSP_RTL::OUString* pStyle = NULL );

    sal_Int32				ImplGetNextClipId() { return mnCurClipId++; }

                            SVGActionWriter();

public:

    static NMSP_RTL::OUString GetValueString( sal_Int32 nVal, sal_Bool bDoublePoints );

public:

                            SVGActionWriter( SvXMLExport& rExport, const GDIMetaFile& rMtf, 
                                             VirtualDevice* pParentVDev = NULL, 
                                             sal_Bool bWriteDoublePoints = sal_False );
    virtual					~SVGActionWriter();

    const VirtualDevice&	GetVDev() const { return *mpVDev; }
    BOOL					HasDoublePoints() const { return mbDoublePoints; }
};

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */