/* -*- 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 INCLUDED_VCL_INC_SALGDI_HXX #define INCLUDED_VCL_INC_SALGDI_HXX #include #include "impfontmetricdata.hxx" #include "salgdiimpl.hxx" #include "sallayout.hxx" #include #include "WidgetDrawInterface.hxx" #include #include #include class PhysicalFontCollection; class SalBitmap; class FontSelectPattern; class FontAttributes; class PhysicalFontFace; class SalLayout; class ImplLayoutArgs; namespace tools { class Rectangle; } class FontSubsetInfo; class OpenGLContext; class OutputDevice; class FreetypeFont; struct SystemGraphicsData; #if ENABLE_CAIRO_CANVAS struct SystemFontData; #endif // ENABLE_CAIRO_CANVAS namespace basegfx { class B2DVector; class B2DPolygon; class B2DPolyPolygon; } typedef sal_Unicode sal_Ucs; // TODO: use sal_UCS4 instead of sal_Unicode typedef std::map< sal_Ucs, sal_uInt32 > Ucs2UIntMap; // note: if you add any new methods to class SalGraphics using coordinates // make sure they have a corresponding protected pure virtual method // which has to be implemented by the platform dependent part. // Add a method that performs coordinate mirroring if required, (see // existing methods as sample) and then calls the equivalent pure method. // note: all positions are in pixel and relative to // the top/left-position of the virtual output area class VCL_PLUGIN_PUBLIC SalGraphics : protected vcl::WidgetDrawInterface { public: SalGraphics(); ~SalGraphics() override; virtual SalGraphicsImpl* GetImpl() const = 0; /// Check that our mpImpl is OpenGL and return the context, otherwise NULL. rtl::Reference GetOpenGLContext() const; void setAntiAliasB2DDraw(bool bNew) { m_bAntiAliasB2DDraw = bNew; } bool getAntiAliasB2DDraw() const { return m_bAntiAliasB2DDraw; } // public SalGraphics methods, the interface to the independent vcl part // get device resolution virtual void GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) = 0; // get the depth of the device virtual sal_uInt16 GetBitCount() const = 0; // get the width of the device virtual 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; // set the text color to a specific color virtual void SetTextColor( Color nColor ) = 0; // set the font virtual void SetFont(LogicalFontInstance*, int nFallbackLevel) = 0; // release the fonts void ReleaseFonts() { SetFont( nullptr, 0 ); } // get the current font's metrics virtual void GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) = 0; // get the repertoire of the current font virtual const FontCharMapRef GetFontCharMap() const = 0; // get the layout capabilities of the current font virtual bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const = 0; // graphics must fill supplied font list virtual void GetDevFontList( PhysicalFontCollection* ) = 0; // graphics must drop any cached font info virtual void ClearDevFontCache() = 0; virtual bool AddTempDevFont( PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) = 0; // CreateFontSubset: a method to get a subset of glyhps of a font // inside a new valid font file // returns true if creation of subset was successful // parameters: rToFile: contains a osl file URL to write the subset to // pFont: describes from which font to create a subset // pGlyphIDs: the glyph ids to be extracted // pEncoding: the character code corresponding to each glyph // pWidths: the advance widths of the corresponding glyphs (in PS font units) // nGlyphs: the number of glyphs // rInfo: additional outgoing information // implementation note: encoding 0 with glyph id 0 should be added implicitly // as "undefined character" virtual bool CreateFontSubset( const OUString& rToFile, const PhysicalFontFace* pFont, const sal_GlyphId* pGlyphIDs, const sal_uInt8* pEncoding, sal_Int32* pWidths, int nGlyphs, FontSubsetInfo& rInfo ) = 0; // GetEmbedFontData: gets the font data for a font marked // embeddable by GetDevFontList or NULL in case of error // parameters: pFont: describes the font in question // pDataLen: out parameter, contains the byte length of the returned buffer virtual const void* GetEmbedFontData(const PhysicalFontFace* pFont, long* pDataLen) = 0; // free the font data again virtual void FreeEmbedFontData( const void* pData, long nDataLen ) = 0; // get the same widths as in CreateFontSubset // in case of an embeddable font also fill the mapping // between unicode and glyph id // leave widths vector and mapping untouched in case of failure virtual void GetGlyphWidths( const PhysicalFontFace* pFont, bool bVertical, std::vector< sal_Int32 >& rWidths, Ucs2UIntMap& rUnicodeEnc ) = 0; virtual std::unique_ptr GetTextLayout(int nFallbackLevel) = 0; virtual void DrawTextLayout( const GenericSalLayout& ) = 0; virtual bool supportsOperation( OutDevSupportType ) const = 0; // mirroring specifics SalLayoutFlags GetLayout() const { return m_nLayout; } void SetLayout( SalLayoutFlags aLayout ) { m_nLayout = aLayout;} void mirror( long& nX, const OutputDevice *pOutDev ) const; // only called mirror2 to avoid ambiguity [[nodiscard]] long mirror2( long nX, const OutputDevice *pOutDev ) const; void mirror( long& nX, long nWidth, const OutputDevice *pOutDev, bool bBack = false ) const; bool mirror( sal_uInt32 nPoints, const SalPoint *pPtAry, SalPoint *pPtAry2, const OutputDevice *pOutDev ) const; void mirror( tools::Rectangle& rRect, const OutputDevice*, bool bBack = false ) const; void mirror( vcl::Region& rRgn, const OutputDevice *pOutDev ) const; void mirror( ImplControlValue&, const OutputDevice* ) const; basegfx::B2DPoint mirror( const basegfx::B2DPoint& i_rPoint, const OutputDevice *pOutDev ) const; basegfx::B2DPolyPolygon mirror( const basegfx::B2DPolyPolygon& i_rPoly, const OutputDevice *pOutDev ) const; const basegfx::B2DHomMatrix& getMirror( const OutputDevice *pOutDev ) const; basegfx::B2DHomMatrix mirror( const basegfx::B2DHomMatrix& i_rMatrix, const OutputDevice *pOutDev ) const; // non virtual methods; these do possible coordinate mirroring and // then delegate to protected virtual methods bool SetClipRegion( const vcl::Region&, const OutputDevice *pOutDev ); // draw --> LineColor and FillColor and RasterOp and ClipRegion void DrawPixel( long nX, long nY, const OutputDevice *pOutDev ); void DrawPixel( long nX, long nY, Color nColor, const OutputDevice *pOutDev ); void DrawLine( long nX1, long nY1, long nX2, long nY2, const OutputDevice *pOutDev ); void DrawRect( long nX, long nY, long nWidth, long nHeight, const OutputDevice *pOutDev ); void DrawPolyLine( sal_uInt32 nPoints, SalPoint const * pPtAry, const OutputDevice *pOutDev ); void DrawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry, const OutputDevice *pOutDev ); void DrawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, PCONSTSALPOINT* pPtAry, const OutputDevice *pOutDev ); bool DrawPolyPolygon( const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolyPolygon &i_rPolyPolygon, double i_fTransparency, const OutputDevice *i_pOutDev); bool DrawPolyLine( const basegfx::B2DHomMatrix& rObjectToDevice, const basegfx::B2DPolygon& i_rPolygon, double i_fTransparency, const basegfx::B2DVector& i_rLineWidth, basegfx::B2DLineJoin i_eLineJoin, css::drawing::LineCap i_eLineCap, double i_fMiterMinimumAngle, bool bPixelSnapHairline, const OutputDevice* i_pOutDev); bool DrawPolyLineBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry, const OutputDevice *pOutDev ); bool DrawPolygonBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry, const OutputDevice *pOutDev ); bool DrawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const SalPoint* const* pPtAry, const PolyFlags* const* pFlgAry, const OutputDevice *pOutDev ); bool DrawGradient( const tools::PolyPolygon& rPolyPoly, const Gradient& rGradient ); // CopyArea --> No RasterOp, but ClipRegion void CopyArea( long nDestX, long nDestY, long nSrcX, long nSrcY, long nSrcWidth, long nSrcHeight, const OutputDevice *pOutDev ); // CopyBits and DrawBitmap --> RasterOp and ClipRegion // CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics void CopyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics, const OutputDevice *pOutDev, const OutputDevice *pSrcOutDev ); void DrawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap, const OutputDevice *pOutDev ); void DrawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap, const SalBitmap& rTransparentBitmap, const OutputDevice *pOutDev ); void DrawMask( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap, Color nMaskColor, const OutputDevice *pOutDev ); std::shared_ptr GetBitmap( long nX, long nY, long nWidth, long nHeight, const OutputDevice *pOutDev ); Color GetPixel( long nX, long nY, const OutputDevice *pOutDev ); // invert --> ClipRegion (only Windows) void Invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags, const OutputDevice *pOutDev ); void Invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags, const OutputDevice *pOutDev ); bool DrawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uInt32 nSize, const OutputDevice *pOutDev ); // native widget rendering functions /** * @see WidgetDrawInterface::isNativeControlSupported */ inline bool IsNativeControlSupported(ControlType, ControlPart); /** * @see WidgetDrawInterface::hitTestNativeControl */ bool HitTestNativeScrollbar( ControlPart nPart, const tools::Rectangle& rControlRegion, const Point& aPos, bool& rIsInside, const OutputDevice *pOutDev ); /** * @see WidgetDrawInterface::drawNativeControl */ bool DrawNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState, const ImplControlValue& aValue, const OUString& aCaption, const OutputDevice *pOutDev ); /** * @see WidgetDrawInterface::getNativeControlRegion */ bool GetNativeControlRegion( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState, const ImplControlValue& aValue, tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion, const OutputDevice *pOutDev ); /** * @see WidgetDrawInterface::updateSettings */ inline bool UpdateSettings(AllSettings&); bool BlendBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap, const OutputDevice *pOutDev ); bool BlendAlphaBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalSrcBitmap, const SalBitmap& rSalMaskBitmap, const SalBitmap& rSalAlphaBitmap, const OutputDevice *pOutDev ); bool DrawAlphaBitmap( const SalTwoRect&, const SalBitmap& rSourceBitmap, const SalBitmap& rAlphaBitmap, const OutputDevice *pOutDev ); bool DrawTransformedBitmap( const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX, const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap, const SalBitmap* pAlphaBitmap, const OutputDevice* pOutDev ); bool DrawAlphaRect( long nX, long nY, long nWidth, long nHeight, sal_uInt8 nTransparency, const OutputDevice *pOutDev ); virtual SystemGraphicsData GetGraphicsData() const = 0; #if ENABLE_CAIRO_CANVAS /// Check whether cairo will work virtual bool SupportsCairo() const = 0; /// Create Surface from given cairo surface virtual cairo::SurfaceSharedPtr CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const = 0; /// Create surface with given dimensions virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y, int width, int height) const = 0; /// Create Surface for given bitmap data virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice, const BitmapSystemData& rData, const Size& rSize) const = 0; virtual css::uno::Any GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& rSize) const = 0; virtual SystemFontData GetSysFontData( int nFallbacklevel ) const = 0; #endif // ENABLE_CAIRO_CANVAS protected: virtual bool setClipRegion( const vcl::Region& ) = 0; // draw --> LineColor and FillColor and RasterOp and ClipRegion virtual void drawPixel( long nX, long nY ) = 0; virtual void drawPixel( long nX, long nY, Color nColor ) = 0; virtual void drawLine( long nX1, long nY1, long nX2, long nY2 ) = 0; virtual void drawRect( long nX, long nY, long nWidth, long nHeight ) = 0; virtual void drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry ) = 0; virtual void drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry ) = 0; virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, PCONSTSALPOINT* 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, const basegfx::B2DVector& rLineWidths, basegfx::B2DLineJoin, css::drawing::LineCap, double fMiterMinimumAngle, bool bPixelSnapHairline) = 0; virtual bool drawPolyLineBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry ) = 0; virtual bool drawPolygonBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry ) = 0; virtual bool drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const SalPoint* const* pPtAry, const PolyFlags* const* pFlgAry ) = 0; virtual bool drawGradient( const tools::PolyPolygon& rPolyPoly, const Gradient& rGradient ) = 0; // CopyArea --> No RasterOp, but ClipRegion virtual void copyArea( long nDestX, long nDestY, long nSrcX, long nSrcY, long nSrcWidth, 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 getBitmap( long nX, long nY, long nWidth, long nHeight ) = 0; virtual Color getPixel( long nX, long nY ) = 0; // invert --> ClipRegion (only Windows or VirDevs) virtual void invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags) = 0; virtual void invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags ) = 0; virtual bool drawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uInt32 nSize ) = 0; /** Blend the bitmap with the current buffer */ virtual bool blendBitmap( const SalTwoRect&, const SalBitmap& rBitmap ) = 0; /** Draw the bitmap by blending using the mask and alpha channel */ virtual bool blendAlphaBitmap( const SalTwoRect&, const SalBitmap& rSrcBitmap, const SalBitmap& rMaskBitmap, const SalBitmap& rAlphaBitmap ) = 0; /** Render bitmap with alpha channel @param rSourceBitmap Source bitmap to blit @param rAlphaBitmap Alpha channel to use for blitting @return true, if the operation succeeded, and false otherwise. In this case, clients should try to emulate alpha compositing themselves */ virtual bool drawAlphaBitmap( const SalTwoRect&, const SalBitmap& rSourceBitmap, const SalBitmap& rAlphaBitmap ) = 0; /** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */ virtual bool drawTransformedBitmap( const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX, const basegfx::B2DPoint& rY, const SalBitmap& rSourceBitmap, const SalBitmap* pAlphaBitmap) = 0; /** Render solid rectangle with given transparency * * @param nX Top left coordinate of rectangle * @param nY Bottom right coordinate of rectangle * @param nWidth Width of rectangle * @param nHeight Height of rectangle * @param nTransparency Transparency value (0-255) to use. 0 blits and opaque, 255 a * fully transparent rectangle * @returns true if successfully drawn, false if not able to draw rectangle */ virtual bool drawAlphaRect( long nX, long nY, long nWidth, long nHeight, sal_uInt8 nTransparency ) = 0; private: SalLayoutFlags m_nLayout; //< 0: mirroring off, 1: mirror x-axis // for buffering the Mirror-Matrix, see ::getMirror basegfx::B2DHomMatrix m_aLastMirror; long m_aLastMirrorW; protected: /// flags which hold the SetAntialiasing() value from OutputDevice bool m_bAntiAliasB2DDraw : 1; inline long GetDeviceWidth(const OutputDevice* pOutDev) const; /** * Handle damage done by drawing with a widget draw override * * If a m_pWidgetDraw is set and successfully draws using drawNativeControl, * this function is called to handle the damage done to the graphics buffer. * * @param rDamagedRegion the region damaged by drawNativeControl. **/ virtual inline void handleDamage(const tools::Rectangle& rDamagedRegion); // native controls bool initWidgetDrawBackends(bool bForce = false); std::unique_ptr m_pWidgetDraw; vcl::WidgetDrawInterface* forWidget() { return m_pWidgetDraw ? m_pWidgetDraw.get() : this; } }; bool SalGraphics::IsNativeControlSupported(ControlType eType, ControlPart ePart) { return forWidget()->isNativeControlSupported(eType, ePart); } bool SalGraphics::UpdateSettings(AllSettings& rSettings) { return forWidget()->updateSettings(rSettings); } void SalGraphics::handleDamage(const tools::Rectangle&) {} #endif // INCLUDED_VCL_INC_SALGDI_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */