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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 .
*/
#ifndef _CPPCANVAS_IMPLRENDERER_HXX
#define _CPPCANVAS_IMPLRENDERER_HXX
#include <sal/types.h>
#include <boost/shared_ptr.hpp>
#include <cppcanvas/renderer.hxx>
#include <cppcanvas/canvas.hxx>
#include <canvasgraphichelper.hxx>
#include <action.hxx>
#include <vector>
class GDIMetaFile;
class VirtualDevice;
class Gradient;
class Rectangle;
class Font;
class PolyPolygon;
class Point;
class MetaCommentAction;
namespace basegfx {
class B2DPolyPolygon;
class B2DPolygon;
}
namespace cppcanvas
{
namespace internal
{
struct OutDevState;
struct ActionFactoryParameters;
struct EMFPObject;
struct XForm;
// state stack of OutputDevice, to correctly handle
// push/pop actions
class VectorOfOutDevStates
{
public:
OutDevState& getState();
const OutDevState& getState() const;
void pushState(sal_uInt16 nFlags);
void popState();
void clearStateStack();
private:
::std::vector< OutDevState > m_aStates;
};
// EMF+
// TODO: replace?
struct XForm
{
float eM11;
float eM12;
float eM21;
float eM22;
float eDx;
float eDy;
XForm()
{
SetIdentity ();
};
void SetIdentity ()
{
eM11 = eM22 = 1.0f;
eDx = eDy = eM12 = eM21 = 0.0f;
}
void Set (float m11, float m12, float dx, float m21, float m22, float dy)
{
eM11 = m11;
eM12 = m12;
eDx = dx;
eM21 = m21;
eM22 = m22;
eDy = dy;
}
void Set (XForm f)
{
eM11 = f.eM11;
eM12 = f.eM12;
eM21 = f.eM21;
eM22 = f.eM22;
eDx = f.eDx;
eDy = f.eDy;
}
void Multiply (float m11, float m12, float dx, float m21, float m22, float dy)
{
eM11 = eM11*m11 + eM12*m21;
eM12 = eM11*m12 + eM12*m22;
eM21 = eM21*m11 + eM22*m21;
eM22 = eM21*m12 + eM22*m22;
eDx *= eDx*m11 + eDy*m21 + dx;
eDy *= eDx*m12 + eDy*m22 + dy;
}
void Multiply (XForm f)
{
eM11 = eM11*f.eM11 + eM12*f.eM21;
eM12 = eM11*f.eM12 + eM12*f.eM22;
eM21 = eM21*f.eM11 + eM22*f.eM21;
eM22 = eM21*f.eM12 + eM22*f.eM22;
eDx *= eDx*f.eM11 + eDy*f.eM21 + f.eDx;
eDy *= eDx*f.eM12 + eDy*f.eM22 + f.eDy;
}
#ifdef OSL_BIGENDIAN
// currently unused
static float GetSwapFloat( SvStream& rSt )
{
float fTmp;
sal_Int8* pPtr = (sal_Int8*)&fTmp;
rSt >> pPtr[3] >> pPtr[2] >> pPtr[1] >> pPtr[0]; // Little Endian <-> Big Endian switch
return fTmp;
}
#endif
friend SvStream& operator>>( SvStream& rIn, XForm& rXForm )
{
if ( sizeof( float ) != 4 )
{
OSL_FAIL( "EnhWMFReader::sizeof( float ) != 4" );
rXForm = XForm();
}
else
{
#ifdef OSL_BIGENDIAN
rXForm.eM11 = GetSwapFloat( rIn );
rXForm.eM12 = GetSwapFloat( rIn );
rXForm.eM21 = GetSwapFloat( rIn );
rXForm.eM22 = GetSwapFloat( rIn );
rXForm.eDx = GetSwapFloat( rIn );
rXForm.eDy = GetSwapFloat( rIn );
#else
rIn >> rXForm.eM11 >> rXForm.eM12 >> rXForm.eM21 >> rXForm.eM22
>> rXForm.eDx >> rXForm.eDy;
#endif
}
return rIn;
}
};
class ImplRenderer : public virtual Renderer, protected CanvasGraphicHelper
{
public:
ImplRenderer( const CanvasSharedPtr& rCanvas,
const GDIMetaFile& rMtf,
const Parameters& rParms );
virtual ~ImplRenderer();
virtual bool draw() const;
virtual bool drawSubset( sal_Int32 nStartIndex,
sal_Int32 nEndIndex ) const;
virtual ::basegfx::B2DRange getSubsetArea( sal_Int32 nStartIndex,
sal_Int32 nEndIndex ) const;
// element of the Renderer's action vector. Need to be
// public, since some functors need it, too.
struct MtfAction
{
MtfAction( const ActionSharedPtr& rAction,
sal_Int32 nOrigIndex ) :
mpAction( rAction ),
mnOrigIndex( nOrigIndex )
{
}
ActionSharedPtr mpAction;
sal_Int32 mnOrigIndex;
};
// prefetched and prepared canvas actions
// (externally not visible)
typedef ::std::vector< MtfAction > ActionVector;
/* EMF+ */
void ReadRectangle (SvStream& s, float& x, float& y, float &width, float& height, bool bCompressed = false);
void ReadPoint (SvStream& s, float& x, float& y, sal_uInt32 flags);
void MapToDevice (double &x, double &y);
::basegfx::B2DPoint Map (double ix, double iy);
::basegfx::B2DSize MapSize (double iwidth, double iheight);
private:
// default: disabled copy/assignment
ImplRenderer(const ImplRenderer&);
ImplRenderer& operator=( const ImplRenderer& );
void updateClipping( const ::basegfx::B2DPolyPolygon& rClipPoly,
const ActionFactoryParameters& rParms,
bool bIntersect );
void updateClipping( const ::Rectangle& rClipRect,
const ActionFactoryParameters& rParms,
bool bIntersect );
::com::sun::star::uno::Reference<
::com::sun::star::rendering::XCanvasFont > createFont( double& o_rFontRotation,
const ::Font& rFont,
const ActionFactoryParameters& rParms ) const;
bool createActions( GDIMetaFile& rMtf,
const ActionFactoryParameters& rParms,
bool bSubsettableActions );
bool createFillAndStroke( const ::basegfx::B2DPolyPolygon& rPolyPoly,
const ActionFactoryParameters& rParms );
bool createFillAndStroke( const ::basegfx::B2DPolygon& rPoly,
const ActionFactoryParameters& rParms );
void skipContent( GDIMetaFile& rMtf,
const char* pCommentString,
sal_Int32& io_rCurrActionIndex ) const;
bool isActionContained( GDIMetaFile& rMtf,
const char* pCommentString,
sal_uInt16 nType ) const;
void createGradientAction( const ::PolyPolygon& rPoly,
const ::Gradient& rGradient,
const ActionFactoryParameters& rParms,
bool bIsPolygonRectangle,
bool bSubsettableActions );
void createTextAction( const ::Point& rStartPoint,
const String rString,
int nIndex,
int nLength,
const sal_Int32* pCharWidths,
const ActionFactoryParameters& rParms,
bool bSubsettable );
bool getSubsetIndices( sal_Int32& io_rStartIndex,
sal_Int32& io_rEndIndex,
ActionVector::const_iterator& o_rRangeBegin,
ActionVector::const_iterator& o_rRangeEnd ) const;
void processObjectRecord(SvMemoryStream& rObjectStream, sal_uInt16 flags, sal_uInt32 dataSize, sal_Bool bUseWholeStream = sal_False);
/* EMF+ */
void processEMFPlus( MetaCommentAction* pAct, const ActionFactoryParameters& rFactoryParms, OutDevState& rState, const CanvasSharedPtr& rCanvas );
double setFont( sal_uInt8 objectId, const ActionFactoryParameters& rParms, OutDevState& rState );
void EMFPPlusDrawPolygon (::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, sal_uInt32 penIndex);
void EMFPPlusFillPolygon (::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, bool isColor, sal_uInt32 brushIndexOrColor);
ActionVector maActions;
/* EMF+ */
XForm aBaseTransform;
XForm aWorldTransform;
EMFPObject* aObjects [256];
float fPageScale;
sal_Int32 nOriginX;
sal_Int32 nOriginY;
sal_Int32 nHDPI;
sal_Int32 nVDPI;
::PolyPolygon aClippingPolygon;
/* EMF+ emf header info */
sal_Int32 nFrameLeft;
sal_Int32 nFrameTop;
sal_Int32 nFrameRight;
sal_Int32 nFrameBottom;
sal_Int32 nPixX;
sal_Int32 nPixY;
sal_Int32 nMmX;
sal_Int32 nMmY;
/* multipart object data */
bool mbMultipart;
sal_uInt16 mMFlags;
SvMemoryStream mMStream;
};
/// Common parameters when creating actions
struct ActionFactoryParameters
{
ActionFactoryParameters( VectorOfOutDevStates& rStates,
const CanvasSharedPtr& rCanvas,
::VirtualDevice& rVDev,
const Renderer::Parameters& rParms,
sal_Int32& io_rCurrActionIndex ) :
mrStates(rStates),
mrCanvas(rCanvas),
mrVDev(rVDev),
mrParms(rParms),
mrCurrActionIndex(io_rCurrActionIndex)
{}
VectorOfOutDevStates& mrStates;
const CanvasSharedPtr& mrCanvas;
::VirtualDevice& mrVDev;
const Renderer::Parameters& mrParms;
sal_Int32& mrCurrActionIndex;
};
}
}
#endif /* _CPPCANVAS_IMPLRENDERER_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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