/* -*- 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 .
*/
#pragma once
#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 Gradient;
struct SalGradient;
/**
Implementation class for SalGraphics .
This class allows having an implementation of drawing calls that is separate from SalGraphics ,
and SalGraphics can forward all such calls to SalGraphicsImpl . For example X11SalGraphics
may internally use either Cairo - based X11CairoSalGraphicsImpl or Skia - based SkiaSalGraphicsImpl ,
and the latter may be used also by other SalGraphics implementations . All the functions
here should be implementations of the relevant SalGraphics functions .
*/
class VCL_PLUGIN_PUBLIC SalGraphicsImpl
{
bool m_bAntiAlias;
public :
void setAntiAlias(bool bNew)
{
m_bAntiAlias = bNew;
}
bool getAntiAlias() const
{
return m_bAntiAlias;
}
SalGraphicsImpl()
: m_bAntiAlias(false )
{}
virtual ~SalGraphicsImpl();
// All the functions are implementations of functions from the SalGraphics class,
// so see the SalGraphics class for documentation (both uppercase and lowercase
// function variants).
/// Only used by the X11SkiaSalGraphicsImpl backend
virtual void UpdateX11GeometryProvider() {}
virtual void DeInit() {}
virtual OUString getRenderBackendName() const = 0 ;
virtual void setClipRegion( const vcl::Region& ) = 0 ;
virtual sal_uInt16 GetBitCount() const = 0 ;
virtual tools::Long GetGraphicsWidth() const = 0 ;
virtual void ResetClipRegion() = 0 ;
virtual void SetLineColor() = 0 ;
virtual void SetLineColor( Color nColor ) = 0 ;
virtual void SetFillColor() = 0 ;
virtual void SetFillColor( Color nColor ) = 0 ;
virtual void SetXORMode( bool bSet, bool bInvertOnly ) = 0 ;
virtual void SetROPLineColor( SalROPColor nROPColor ) = 0 ;
virtual void SetROPFillColor( SalROPColor nROPColor ) = 0 ;
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 void 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,
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 ;
virtual void copyArea(
tools::Long nDestX, tools::Long nDestY,
tools::Long nSrcX, tools::Long nSrcY,
tools::Long nSrcWidth, tools::Long nSrcHeight,
bool bWindowInvalidate ) = 0 ;
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 ;
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 ;
/// Only implemented by the macOS Quartz backend and the MS-Windows GDI backend.
virtual bool drawEPS(
tools::Long /*nX*/, tools::Long /*nY*/,
tools::Long /*nWidth*/, tools::Long /*nHeight*/,
void * /*pPtr*/,
sal_uInt32 /*nSize*/ ) { return false; }
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,
double fAlpha) = 0 ;
/// Only currently true for SkiaSalGraphicsImpl
virtual bool hasFastDrawTransformedBitmap() const { return false ; }
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 ;
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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