salgdiimpl.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_VCL_INC_SALGDIIMPL_HXX
#define INCLUDED_VCL_INC_SALGDIIMPL_HXX

#include <vcl/dllapi.h>

#include <tools/color.hxx>
#include <tools/poly.hxx>

#include <vcl/salgtype.hxx>
#include <vcl/region.hxx>
#include <vcl/vclenum.hxx>

#include <com/sun/star/drawing/LineCap.hpp>

class SalGraphics;
class SalBitmap;
class SalFrame;
class Gradient;
class SalVirtualDevice;
struct SalGradient;

class VCL_PLUGIN_PUBLIC SalGraphicsImpl
{
public:

    virtual ~SalGraphicsImpl();

    virtual void Init() = 0;

    virtual void DeInit() {}

    virtual void freeResources() = 0;

    virtual OUString getRenderBackendName() const = 0;

    virtual bool setClipRegion( const vcl::Region& ) = 0;
    //
    // get the depth of the device
    virtual sal_uInt16 GetBitCount() const = 0;

    // get the width of the device
    virtual tools::Long GetGraphicsWidth() const = 0;

    // set the clip region to empty
    virtual void ResetClipRegion() = 0;

    // set the line color to transparent (= don't draw lines)

    virtual void SetLineColor() = 0;

    // set the line color to a specific color
    virtual void SetLineColor( Color nColor ) = 0;

    // set the fill color to transparent (= don't fill)
    virtual void SetFillColor() = 0;

    // set the fill color to a specific color, shapes will be
    // filled accordingly
    virtual void SetFillColor( Color nColor ) = 0;

    // enable/disable XOR drawing
    virtual void SetXORMode( bool bSet, bool bInvertOnly ) = 0;

    // set line color for raster operations
    virtual void SetROPLineColor( SalROPColor nROPColor ) = 0;

    // set fill color for raster operations
    virtual void SetROPFillColor( SalROPColor nROPColor ) = 0;

    // draw --> LineColor and FillColor and RasterOp and ClipRegion
    virtual void drawPixel( tools::Long nX, tools::Long nY ) = 0;
    virtual void drawPixel( tools::Long nX, tools::Long nY, Color nColor ) = 0;

    virtual void drawLine( tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2 ) = 0;

    virtual void drawRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) = 0;

    virtual void drawPolyLine( sal_uInt32 nPoints, const Point* pPtAry ) = 0;

    virtual void drawPolygon( sal_uInt32 nPoints, const Point* pPtAry ) = 0;

    virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point** pPtAry ) = 0;

    virtual bool drawPolyPolygon(
        const basegfx::B2DHomMatrix& rObjectToDevice,
        const basegfx::B2DPolyPolygon&,
        double fTransparency) = 0;

    virtual bool drawPolyLine(
                const basegfx::B2DHomMatrix& rObjectToDevice,
                const basegfx::B2DPolygon&,
                double fTransparency,
                double fLineWidth,
                const std::vector< double >* pStroke, // MM01
                basegfx::B2DLineJoin,
                css::drawing::LineCap,
                double fMiterMinimumAngle,
                bool bPixelSnapHairline) = 0;

    virtual bool drawPolyLineBezier(
                sal_uInt32 nPoints,
                const Point* pPtAry,
                const PolyFlags* pFlgAry ) = 0;

    virtual bool drawPolygonBezier(
                sal_uInt32 nPoints,
                const Point* pPtAry,
                const PolyFlags* pFlgAry ) = 0;

    virtual bool drawPolyPolygonBezier(
                sal_uInt32 nPoly,
                const sal_uInt32* pPoints,
                const Point* const* pPtAry,
                const PolyFlags* const* pFlgAry ) = 0;

    // CopyArea --> No RasterOp, but ClipRegion
    virtual void copyArea(
                tools::Long nDestX, tools::Long nDestY,
                tools::Long nSrcX, tools::Long nSrcY,
                tools::Long nSrcWidth, tools::Long nSrcHeight,
                bool bWindowInvalidate ) = 0;

    // CopyBits and DrawBitmap --> RasterOp and ClipRegion
    // CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
    virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) = 0;

    virtual void drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) = 0;

    virtual void drawBitmap(
                const SalTwoRect& rPosAry,
                const SalBitmap& rSalBitmap,
                const SalBitmap& rMaskBitmap ) = 0;

    virtual void drawMask(
                const SalTwoRect& rPosAry,
                const SalBitmap& rSalBitmap,
                Color nMaskColor ) = 0;

    virtual std::shared_ptr<SalBitmap> getBitmap( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) = 0;

    virtual Color getPixel( tools::Long nX, tools::Long nY ) = 0;

    // invert --> ClipRegion (only Windows or VirDevs)
    virtual void invert(
                tools::Long nX, tools::Long nY,
                tools::Long nWidth, tools::Long nHeight,
                SalInvert nFlags) = 0;

    virtual void invert( sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags ) = 0;

    virtual bool drawEPS(
                tools::Long nX, tools::Long nY,
                tools::Long nWidth, tools::Long nHeight,
                void* pPtr,
                sal_uInt32 nSize ) = 0;

    virtual bool blendBitmap(
                const SalTwoRect&,
                const SalBitmap& rBitmap ) = 0;

    virtual bool blendAlphaBitmap(
                const SalTwoRect&,
                const SalBitmap& rSrcBitmap,
                const SalBitmap& rMaskBitmap,
                const SalBitmap& rAlphaBitmap ) = 0;

    virtual bool drawAlphaBitmap(
                const SalTwoRect&,
                const SalBitmap& rSourceBitmap,
                const SalBitmap& rAlphaBitmap ) = 0;

    virtual bool drawTransformedBitmap(
                const basegfx::B2DPoint& rNull,
                const basegfx::B2DPoint& rX,
                const basegfx::B2DPoint& rY,
                const SalBitmap& rSourceBitmap,
                const SalBitmap* pAlphaBitmap) = 0;

    virtual bool drawAlphaRect(
                    tools::Long nX, tools::Long nY,
                    tools::Long nWidth, tools::Long nHeight,
                    sal_uInt8 nTransparency ) = 0;

    virtual bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) = 0;
    virtual bool implDrawGradient(basegfx::B2DPolyPolygon const & rPolyPolygon, SalGradient const & rGradient) = 0;

    virtual bool supportsOperation(OutDevSupportType eType) const = 0;
};

#endif

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