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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 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <sallayout.hxx>
+#include <salgeom.hxx>
+#include <salgdi.hxx>
+#include <fontinstance.hxx>
+#include <fontattributes.hxx>
+#include <font/PhysicalFontFace.hxx>
+#include <impfont.hxx>
+#include <vcl/fontcapabilities.hxx>
+#include <vcl/fontcharmap.hxx>
+
+#include <memory>
+#include <unordered_set>
+
+#ifndef INCLUDED_PRE_POST_WIN_H
+#define INCLUDED_PRE_POST_WIN_H
+# include <prewin.h>
+# include <postwin.h>
+#endif
+
+#include <hb-ot.h>
+#include <dwrite.h>
+
+namespace vcl::font
+{
+class PhysicalFontCollection;
+class FontSelectPattern;
+}
+class WinFontInstance;
+class ImplFontAttrCache;
+class SalGraphicsImpl;
+class WinSalGraphicsImplBase;
+class ImplFontMetricData;
+
+#define RGB_TO_PALRGB(nRGB) ((nRGB)|0x02000000)
+#define PALRGB_TO_RGB(nPalRGB) ((nPalRGB)&0x00ffffff)
+
+// win32 specific physically available font face
+class WinFontFace : public vcl::font::PhysicalFontFace
+{
+public:
+ explicit WinFontFace( const FontAttributes&,
+ BYTE eWinCharSet,
+ BYTE nPitchAndFamily );
+ virtual ~WinFontFace() override;
+
+ virtual rtl::Reference<LogicalFontInstance> CreateFontInstance( const vcl::font::FontSelectPattern& ) const override;
+ virtual sal_IntPtr GetFontId() const override;
+ void SetFontId( sal_IntPtr nId ) { mnId = nId; }
+ void UpdateFromHDC( HDC ) const;
+
+ bool HasChar( sal_uInt32 cChar ) const;
+
+ BYTE GetCharSet() const { return meWinCharSet; }
+ BYTE GetPitchAndFamily() const { return mnPitchAndFamily; }
+
+ FontCharMapRef GetFontCharMap() const override;
+ bool GetFontCapabilities(vcl::FontCapabilities&) const override;
+
+private:
+ sal_IntPtr mnId;
+
+ // some members that are initialized lazily when the font gets selected into a HDC
+ mutable bool mbFontCapabilitiesRead;
+ mutable FontCharMapRef mxUnicodeMap;
+ mutable vcl::FontCapabilities maFontCapabilities;
+
+ BYTE meWinCharSet;
+ BYTE mnPitchAndFamily;
+ bool mbAliasSymbolsHigh;
+ bool mbAliasSymbolsLow;
+
+ void ReadCmapTable( HDC ) const;
+ void GetFontCapabilities( HDC hDC ) const;
+};
+
+/** Class that creates (and destroys) a compatible Device Context.
+
+This is to be used for GDI drawing into a DIB that we later use for a different
+drawing method, such as a texture for OpenGL drawing or surface for Skia drawing.
+*/
+class CompatibleDC
+{
+protected:
+ /// The compatible DC that we create for our purposes.
+ HDC mhCompatibleDC;
+
+ /// DIBSection that we use for the GDI drawing, and later obtain.
+ HBITMAP mhBitmap;
+
+ /// Return the previous bitmap to undo the SelectObject.
+ HBITMAP mhOrigBitmap;
+
+ /// DIBSection data.
+ sal_uInt32 *mpData;
+
+ /// Mapping between the GDI position and OpenGL, to use for OpenGL drawing.
+ SalTwoRect maRects;
+
+ /// The SalGraphicsImpl where we will draw. If null, we ignore the drawing, it means it happened directly to the DC...
+ WinSalGraphicsImplBase *mpImpl;
+
+ // If 'disable' is true, this class is a simple wrapper for drawing directly. Subclasses should use true.
+ CompatibleDC(SalGraphics &rGraphics, int x, int y, int width, int height, bool disable=true);
+
+public:
+ static std::unique_ptr< CompatibleDC > create(SalGraphics &rGraphics, int x, int y, int width, int height);
+
+ virtual ~CompatibleDC();
+
+ HDC getCompatibleHDC() { return mhCompatibleDC; }
+
+ SalTwoRect getTwoRect() const { return maRects; }
+
+ tools::Long getBitmapWidth() const { return maRects.mnSrcWidth; }
+ tools::Long getBitmapHeight() const { return maRects.mnSrcHeight; }
+
+ /// Reset the DC with the defined color.
+ void fill(sal_uInt32 color);
+};
+
+/**
+ * WinSalGraphics never owns the HDC it uses to draw, because the HDC can have
+ * various origins with different ways to correctly free it. And WinSalGraphics
+ * stores all default values (mhDef*) of the HDC, which must be restored when
+ * the HDC changes (setHDC) or the SalGraphics is destructed. So think of the
+ * HDC in terms of Rust's Borrowing semantics.
+ */
+class WinSalGraphics : public SalGraphics
+{
+ friend class WinSalGraphicsImpl;
+ friend class ScopedFont;
+
+protected:
+ std::unique_ptr<SalGraphicsImpl> mpImpl;
+
+private:
+ HDC mhLocalDC; // HDC
+ bool mbPrinter : 1; // is Printer
+ bool mbVirDev : 1; // is VirDev
+ bool mbWindow : 1; // is Window
+ bool mbScreen : 1; // is Screen compatible
+ HWND mhWnd; // Window-Handle, when Window-Graphics
+
+ rtl::Reference<WinFontInstance>
+ mpWinFontEntry[ MAX_FALLBACK ]; // pointer to the most recent font instance
+ HRGN mhRegion; // vcl::Region Handle
+ HPEN mhDefPen; // DefaultPen
+ HBRUSH mhDefBrush; // DefaultBrush
+ HFONT mhDefFont; // DefaultFont
+ HPALETTE mhDefPal; // DefaultPalette
+ COLORREF mnTextColor; // TextColor
+ RGNDATA* mpClipRgnData; // ClipRegion-Data
+ RGNDATA* mpStdClipRgnData; // Cache Standard-ClipRegion-Data
+ int mnPenWidth; // line width
+
+ // just call both from setHDC!
+ void InitGraphics();
+ void DeInitGraphics();
+
+public:
+ // Return HFONT, and whether the font is for vertical writing ( prefixed with '@' )
+ // and tmDescent value for adjusting offset in vertical writing mode.
+ std::tuple<HFONT,bool,sal_Int32> ImplDoSetFont(HDC hDC, vcl::font::FontSelectPattern const & i_rFont, const vcl::font::PhysicalFontFace * i_pFontFace, HFONT& o_rOldFont);
+
+ HDC getHDC() const { return mhLocalDC; }
+ // NOTE: this doesn't transfer ownership! See class comment.
+ void setHDC(HDC aNew);
+
+ HPALETTE getDefPal() const;
+ // returns the result from RealizePalette, otherwise 0 on success or GDI_ERROR
+ UINT setPalette(HPALETTE, BOOL bForceBkgd = TRUE);
+
+ HRGN getRegion() const;
+
+
+ enum Type
+ {
+ PRINTER,
+ VIRTUAL_DEVICE,
+ WINDOW,
+ SCREEN
+ };
+
+public:
+
+ HWND gethWnd();
+
+
+public:
+ explicit WinSalGraphics(WinSalGraphics::Type eType, bool bScreen, HWND hWnd,
+ SalGeometryProvider *pProvider);
+ virtual ~WinSalGraphics() override;
+
+ SalGraphicsImpl* GetImpl() const override;
+ bool isPrinter() const;
+ bool isVirtualDevice() const;
+ bool isWindow() const;
+ bool isScreen() const;
+
+ void setHWND(HWND hWnd);
+ void Flush();
+
+protected:
+ virtual bool setClipRegion( const vcl::Region& ) override;
+ // draw --> LineColor and FillColor and RasterOp and ClipRegion
+ virtual void drawPixel( tools::Long nX, tools::Long nY ) override;
+ virtual void drawPixel( tools::Long nX, tools::Long nY, Color nColor ) override;
+ virtual void drawLine( tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2 ) override;
+ virtual void drawRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
+ virtual void drawPolyLine( sal_uInt32 nPoints, const Point* pPtAry ) override;
+ virtual void drawPolygon( sal_uInt32 nPoints, const Point* pPtAry ) override;
+ virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point** pPtAry ) override;
+ virtual bool drawPolyPolygon(
+ const basegfx::B2DHomMatrix& rObjectToDevice,
+ const basegfx::B2DPolyPolygon&,
+ double fTransparency) override;
+ 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) override;
+ virtual bool drawPolyLineBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
+ virtual bool drawPolygonBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
+ virtual bool drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point* const* pPtAry, const PolyFlags* const* pFlgAry ) override;
+ virtual bool drawGradient( const tools::PolyPolygon&, const Gradient& ) override;
+ virtual bool implDrawGradient(basegfx::B2DPolyPolygon const & rPolyPolygon, SalGradient const & rGradient) override;
+
+ // 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 ) override;
+
+ // CopyBits and DrawBitmap --> RasterOp and ClipRegion
+ // CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
+ virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) override;
+ virtual void drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) override;
+ virtual void drawBitmap( const SalTwoRect& rPosAry,
+ const SalBitmap& rSalBitmap,
+ const SalBitmap& rTransparentBitmap ) override;
+ virtual void drawMask( const SalTwoRect& rPosAry,
+ const SalBitmap& rSalBitmap,
+ Color nMaskColor ) override;
+
+ virtual std::shared_ptr<SalBitmap> getBitmap( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
+ virtual Color getPixel( tools::Long nX, tools::Long nY ) override;
+
+ // invert --> ClipRegion (only Windows or VirDevs)
+ virtual void invert( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, SalInvert nFlags) override;
+ virtual void invert( sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags ) override;
+
+ virtual bool drawEPS( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, void* pPtr, sal_uInt32 nSize ) override;
+
+ // native widget rendering methods that require mirroring
+protected:
+ virtual bool isNativeControlSupported( ControlType nType, ControlPart nPart ) override;
+ virtual bool hitTestNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
+ const Point& aPos, bool& rIsInside ) override;
+ virtual bool drawNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
+ ControlState nState, const ImplControlValue& aValue,
+ const OUString& aCaption, const Color& rBackgroundColor ) override;
+ virtual bool getNativeControlRegion( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState,
+ const ImplControlValue& aValue, const OUString& aCaption,
+ tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion ) override;
+
+public:
+ virtual bool blendBitmap( const SalTwoRect&,
+ const SalBitmap& rBitmap ) override;
+
+ virtual bool blendAlphaBitmap( const SalTwoRect&,
+ const SalBitmap& rSrcBitmap,
+ const SalBitmap& rMaskBitmap,
+ const SalBitmap& rAlphaBitmap ) override;
+
+ virtual bool drawAlphaBitmap( const SalTwoRect&,
+ const SalBitmap& rSourceBitmap,
+ const SalBitmap& rAlphaBitmap ) override;
+ virtual bool drawTransformedBitmap(
+ const basegfx::B2DPoint& rNull,
+ const basegfx::B2DPoint& rX,
+ const basegfx::B2DPoint& rY,
+ const SalBitmap& rSourceBitmap,
+ const SalBitmap* pAlphaBitmap,
+ double fAlpha) override;
+
+ virtual bool hasFastDrawTransformedBitmap() const override;
+
+ virtual bool drawAlphaRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, sal_uInt8 nTransparency ) override;
+
+private:
+ // local helpers
+
+ void DrawTextLayout(const GenericSalLayout&, HDC, bool bUseDWrite, bool bRenderingModeNatural);
+
+public:
+ // public SalGraphics methods, the interface to the independent vcl part
+
+ // get device resolution
+ virtual void GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;
+ // get the depth of the device
+ virtual sal_uInt16 GetBitCount() const override;
+ // get the width of the device
+ virtual tools::Long GetGraphicsWidth() const override;
+
+ // set the clip region to empty
+ virtual void ResetClipRegion() override;
+
+ // set the line color to transparent (= don't draw lines)
+ virtual void SetLineColor() override;
+ // set the line color to a specific color
+ virtual void SetLineColor( Color nColor ) override;
+ // set the fill color to transparent (= don't fill)
+ virtual void SetFillColor() override;
+ // set the fill color to a specific color, shapes will be
+ // filled accordingly
+ virtual void SetFillColor( Color nColor ) override;
+ // enable/disable XOR drawing
+ virtual void SetXORMode( bool bSet, bool ) override;
+ // set line color for raster operations
+ virtual void SetROPLineColor( SalROPColor nROPColor ) override;
+ // set fill color for raster operations
+ virtual void SetROPFillColor( SalROPColor nROPColor ) override;
+ // set the text color to a specific color
+ virtual void SetTextColor( Color nColor ) override;
+ // set the font
+ virtual void SetFont( LogicalFontInstance*, int nFallbackLevel ) override;
+ // get the current font's metrics
+ virtual void GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) override;
+ // get the repertoire of the current font
+ virtual FontCharMapRef GetFontCharMap() const override;
+ // get the layout capabilities of the current font
+ virtual bool GetFontCapabilities(vcl::FontCapabilities &rGetFontCapabilities) const override;
+ // graphics must fill supplied font list
+ virtual void GetDevFontList( vcl::font::PhysicalFontCollection* ) override;
+ // graphics must drop any cached font info
+ virtual void ClearDevFontCache() override;
+ virtual bool AddTempDevFont( vcl::font::PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;
+ // 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 an 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 vcl::font::PhysicalFontFace*,
+ const sal_GlyphId* pGlyphIDs,
+ const sal_uInt8* pEncoding,
+ sal_Int32* pWidths,
+ int nGlyphs,
+ FontSubsetInfo& rInfo // out parameter
+ ) override;
+
+ // 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 vcl::font::PhysicalFontFace*, tools::Long* pDataLen) override;
+ // frees the font data again
+ virtual void FreeEmbedFontData( const void* pData, tools::Long nDataLen ) override;
+ virtual void GetGlyphWidths( const vcl::font::PhysicalFontFace*,
+ bool bVertical,
+ std::vector< sal_Int32 >& rWidths,
+ Ucs2UIntMap& rUnicodeEnc ) override;
+
+ virtual std::unique_ptr<GenericSalLayout>
+ GetTextLayout(int nFallbackLevel) override;
+ virtual void DrawTextLayout( const GenericSalLayout& ) override;
+
+ virtual bool supportsOperation( OutDevSupportType ) const override;
+
+ virtual SystemGraphicsData GetGraphicsData() const override;
+
+ /// Update settings based on the platform values
+ static void updateSettingsNative( AllSettings& rSettings );
+};
+
+// Init/Deinit Graphics
+void ImplUpdateSysColorEntries();
+int ImplIsSysColorEntry( Color nColor );
+void ImplGetLogFontFromFontSelect( const vcl::font::FontSelectPattern&,
+ const vcl::font::PhysicalFontFace*, LOGFONTW& );
+
+#define MAX_64KSALPOINTS ((((sal_uInt16)0xFFFF)-8)/sizeof(POINTS))
+
+// called extremely often from just one spot => inline
+inline bool WinFontFace::HasChar( sal_uInt32 cChar ) const
+{
+ if( mxUnicodeMap->HasChar( cChar ) )
+ return true;
+ // second chance to allow symbol aliasing
+ if( mbAliasSymbolsLow && ((cChar-0xF000) <= 0xFF) )
+ cChar -= 0xF000;
+ else if( mbAliasSymbolsHigh && (cChar <= 0xFF) )
+ cChar += 0xF000;
+ else
+ return false;
+ return mxUnicodeMap->HasChar( cChar );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 22:24:37 +0000