99c51ce0e4
Change-Id: I6b8c815fda3a48917467719432071c0716e3e9ab Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127338 Tested-by: Caolán McNamara <caolanm@redhat.com> Reviewed-by: Caolán McNamara <caolanm@redhat.com>
432 lines
19 KiB
C++
432 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <sal/config.h>
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#include <sallayout.hxx>
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#include <salgeom.hxx>
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#include <salgdi.hxx>
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#include <fontinstance.hxx>
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#include <fontattributes.hxx>
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#include <font/PhysicalFontFace.hxx>
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#include <impfont.hxx>
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#include <vcl/fontcapabilities.hxx>
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#include <vcl/fontcharmap.hxx>
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#include <memory>
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#include <unordered_set>
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#ifndef INCLUDED_PRE_POST_WIN_H
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#define INCLUDED_PRE_POST_WIN_H
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# include <prewin.h>
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# include <postwin.h>
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#endif
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#include <hb-ot.h>
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#include <dwrite.h>
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namespace vcl::font
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{
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class PhysicalFontCollection;
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class FontSelectPattern;
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}
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class WinFontInstance;
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class ImplFontAttrCache;
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class SalGraphicsImpl;
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class WinSalGraphicsImplBase;
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class ImplFontMetricData;
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#define RGB_TO_PALRGB(nRGB) ((nRGB)|0x02000000)
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#define PALRGB_TO_RGB(nPalRGB) ((nPalRGB)&0x00ffffff)
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// win32 specific physically available font face
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class WinFontFace : public vcl::font::PhysicalFontFace
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{
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public:
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explicit WinFontFace( const FontAttributes&,
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BYTE eWinCharSet,
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BYTE nPitchAndFamily );
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virtual ~WinFontFace() override;
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virtual rtl::Reference<LogicalFontInstance> CreateFontInstance( const vcl::font::FontSelectPattern& ) const override;
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virtual sal_IntPtr GetFontId() const override;
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void SetFontId( sal_IntPtr nId ) { mnId = nId; }
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void UpdateFromHDC( HDC ) const;
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bool HasChar( sal_uInt32 cChar ) const;
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BYTE GetCharSet() const { return meWinCharSet; }
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BYTE GetPitchAndFamily() const { return mnPitchAndFamily; }
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FontCharMapRef GetFontCharMap() const override;
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bool GetFontCapabilities(vcl::FontCapabilities&) const override;
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private:
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sal_IntPtr mnId;
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// some members that are initialized lazily when the font gets selected into a HDC
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mutable bool mbFontCapabilitiesRead;
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mutable FontCharMapRef mxUnicodeMap;
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mutable vcl::FontCapabilities maFontCapabilities;
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BYTE meWinCharSet;
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BYTE mnPitchAndFamily;
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bool mbAliasSymbolsHigh;
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bool mbAliasSymbolsLow;
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void ReadCmapTable( HDC ) const;
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void GetFontCapabilities( HDC hDC ) const;
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};
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/** Class that creates (and destroys) a compatible Device Context.
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This is to be used for GDI drawing into a DIB that we later use for a different
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drawing method, such as a texture for OpenGL drawing or surface for Skia drawing.
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*/
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class CompatibleDC
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{
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protected:
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/// The compatible DC that we create for our purposes.
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HDC mhCompatibleDC;
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/// DIBSection that we use for the GDI drawing, and later obtain.
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HBITMAP mhBitmap;
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/// Return the previous bitmap to undo the SelectObject.
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HBITMAP mhOrigBitmap;
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/// DIBSection data.
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sal_uInt32 *mpData;
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/// Mapping between the GDI position and OpenGL, to use for OpenGL drawing.
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SalTwoRect maRects;
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/// The SalGraphicsImpl where we will draw. If null, we ignore the drawing, it means it happened directly to the DC...
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WinSalGraphicsImplBase *mpImpl;
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// If 'disable' is true, this class is a simple wrapper for drawing directly. Subclasses should use true.
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CompatibleDC(SalGraphics &rGraphics, int x, int y, int width, int height, bool disable=true);
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public:
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static std::unique_ptr< CompatibleDC > create(SalGraphics &rGraphics, int x, int y, int width, int height);
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virtual ~CompatibleDC();
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HDC getCompatibleHDC() { return mhCompatibleDC; }
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SalTwoRect getTwoRect() const { return maRects; }
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tools::Long getBitmapWidth() const { return maRects.mnSrcWidth; }
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tools::Long getBitmapHeight() const { return maRects.mnSrcHeight; }
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/// Reset the DC with the defined color.
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void fill(sal_uInt32 color);
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};
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/**
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* WinSalGraphics never owns the HDC it uses to draw, because the HDC can have
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* various origins with different ways to correctly free it. And WinSalGraphics
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* stores all default values (mhDef*) of the HDC, which must be restored when
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* the HDC changes (setHDC) or the SalGraphics is destructed. So think of the
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* HDC in terms of Rust's Borrowing semantics.
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*/
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class WinSalGraphics : public SalGraphics
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{
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friend class WinSalGraphicsImpl;
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friend class ScopedFont;
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protected:
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std::unique_ptr<SalGraphicsImpl> mpImpl;
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private:
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HDC mhLocalDC; // HDC
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bool mbPrinter : 1; // is Printer
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bool mbVirDev : 1; // is VirDev
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bool mbWindow : 1; // is Window
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bool mbScreen : 1; // is Screen compatible
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HWND mhWnd; // Window-Handle, when Window-Graphics
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rtl::Reference<WinFontInstance>
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mpWinFontEntry[ MAX_FALLBACK ]; // pointer to the most recent font instance
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HRGN mhRegion; // vcl::Region Handle
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HPEN mhDefPen; // DefaultPen
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HBRUSH mhDefBrush; // DefaultBrush
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HFONT mhDefFont; // DefaultFont
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HPALETTE mhDefPal; // DefaultPalette
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COLORREF mnTextColor; // TextColor
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RGNDATA* mpClipRgnData; // ClipRegion-Data
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RGNDATA* mpStdClipRgnData; // Cache Standard-ClipRegion-Data
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int mnPenWidth; // line width
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// just call both from setHDC!
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void InitGraphics();
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void DeInitGraphics();
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public:
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// Return HFONT, and whether the font is for vertical writing ( prefixed with '@' )
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// and tmDescent value for adjusting offset in vertical writing mode.
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std::tuple<HFONT,bool,sal_Int32> ImplDoSetFont(HDC hDC, vcl::font::FontSelectPattern const & i_rFont, const vcl::font::PhysicalFontFace * i_pFontFace, HFONT& o_rOldFont);
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HDC getHDC() const { return mhLocalDC; }
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// NOTE: this doesn't transfer ownership! See class comment.
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void setHDC(HDC aNew);
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HPALETTE getDefPal() const;
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// returns the result from RealizePalette, otherwise 0 on success or GDI_ERROR
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UINT setPalette(HPALETTE, BOOL bForceBkgd = TRUE);
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HRGN getRegion() const;
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enum Type
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{
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PRINTER,
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VIRTUAL_DEVICE,
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WINDOW,
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SCREEN
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};
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public:
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HWND gethWnd();
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public:
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explicit WinSalGraphics(WinSalGraphics::Type eType, bool bScreen, HWND hWnd,
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SalGeometryProvider *pProvider);
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virtual ~WinSalGraphics() override;
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SalGraphicsImpl* GetImpl() const override;
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bool isPrinter() const;
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bool isVirtualDevice() const;
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bool isWindow() const;
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bool isScreen() const;
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void setHWND(HWND hWnd);
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void Flush();
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protected:
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virtual bool setClipRegion( const vcl::Region& ) override;
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// draw --> LineColor and FillColor and RasterOp and ClipRegion
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virtual void drawPixel( tools::Long nX, tools::Long nY ) override;
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virtual void drawPixel( tools::Long nX, tools::Long nY, Color nColor ) override;
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virtual void drawLine( tools::Long nX1, tools::Long nY1, tools::Long nX2, tools::Long nY2 ) override;
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virtual void drawRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
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virtual void drawPolyLine( sal_uInt32 nPoints, const Point* pPtAry ) override;
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virtual void drawPolygon( sal_uInt32 nPoints, const Point* pPtAry ) override;
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virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point** pPtAry ) override;
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virtual bool drawPolyPolygon(
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const basegfx::B2DHomMatrix& rObjectToDevice,
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const basegfx::B2DPolyPolygon&,
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double fTransparency) override;
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virtual bool drawPolyLine(
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const basegfx::B2DHomMatrix& rObjectToDevice,
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const basegfx::B2DPolygon&,
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double fTransparency,
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double fLineWidth,
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const std::vector< double >* pStroke, // MM01
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basegfx::B2DLineJoin,
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css::drawing::LineCap,
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double fMiterMinimumAngle,
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bool bPixelSnapHairline) override;
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virtual bool drawPolyLineBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
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virtual bool drawPolygonBezier( sal_uInt32 nPoints, const Point* pPtAry, const PolyFlags* pFlgAry ) override;
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virtual bool drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const Point* const* pPtAry, const PolyFlags* const* pFlgAry ) override;
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virtual bool drawGradient( const tools::PolyPolygon&, const Gradient& ) override;
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virtual bool implDrawGradient(basegfx::B2DPolyPolygon const & rPolyPolygon, SalGradient const & rGradient) override;
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// CopyArea --> No RasterOp, but ClipRegion
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virtual void copyArea( tools::Long nDestX, tools::Long nDestY, tools::Long nSrcX, tools::Long nSrcY, tools::Long nSrcWidth,
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tools::Long nSrcHeight, bool bWindowInvalidate ) override;
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// CopyBits and DrawBitmap --> RasterOp and ClipRegion
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// CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
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virtual void copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) override;
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virtual void drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) override;
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virtual void drawBitmap( const SalTwoRect& rPosAry,
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const SalBitmap& rSalBitmap,
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const SalBitmap& rTransparentBitmap ) override;
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virtual void drawMask( const SalTwoRect& rPosAry,
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const SalBitmap& rSalBitmap,
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Color nMaskColor ) override;
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virtual std::shared_ptr<SalBitmap> getBitmap( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
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virtual Color getPixel( tools::Long nX, tools::Long nY ) override;
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// invert --> ClipRegion (only Windows or VirDevs)
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virtual void invert( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, SalInvert nFlags) override;
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virtual void invert( sal_uInt32 nPoints, const Point* pPtAry, SalInvert nFlags ) override;
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virtual bool drawEPS( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, void* pPtr, sal_uInt32 nSize ) override;
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// native widget rendering methods that require mirroring
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protected:
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virtual bool isNativeControlSupported( ControlType nType, ControlPart nPart ) override;
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virtual bool hitTestNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
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const Point& aPos, bool& rIsInside ) override;
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virtual bool drawNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
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ControlState nState, const ImplControlValue& aValue,
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const OUString& aCaption, const Color& rBackgroundColor ) override;
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virtual bool getNativeControlRegion( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState,
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const ImplControlValue& aValue, const OUString& aCaption,
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tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion ) override;
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public:
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virtual bool blendBitmap( const SalTwoRect&,
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const SalBitmap& rBitmap ) override;
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virtual bool blendAlphaBitmap( const SalTwoRect&,
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const SalBitmap& rSrcBitmap,
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const SalBitmap& rMaskBitmap,
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const SalBitmap& rAlphaBitmap ) override;
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virtual bool drawAlphaBitmap( const SalTwoRect&,
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const SalBitmap& rSourceBitmap,
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const SalBitmap& rAlphaBitmap ) override;
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virtual bool drawTransformedBitmap(
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const basegfx::B2DPoint& rNull,
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const basegfx::B2DPoint& rX,
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const basegfx::B2DPoint& rY,
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const SalBitmap& rSourceBitmap,
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const SalBitmap* pAlphaBitmap,
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double fAlpha) override;
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virtual bool hasFastDrawTransformedBitmap() const override;
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virtual bool drawAlphaRect( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, sal_uInt8 nTransparency ) override;
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private:
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// local helpers
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void DrawTextLayout(const GenericSalLayout&, HDC, bool bUseDWrite, bool bRenderingModeNatural);
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public:
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// public SalGraphics methods, the interface to the independent vcl part
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// get device resolution
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virtual void GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;
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// get the depth of the device
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virtual sal_uInt16 GetBitCount() const override;
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// get the width of the device
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virtual tools::Long GetGraphicsWidth() const override;
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// set the clip region to empty
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virtual void ResetClipRegion() override;
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// set the line color to transparent (= don't draw lines)
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virtual void SetLineColor() override;
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// set the line color to a specific color
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virtual void SetLineColor( Color nColor ) override;
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// set the fill color to transparent (= don't fill)
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virtual void SetFillColor() override;
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// set the fill color to a specific color, shapes will be
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// filled accordingly
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virtual void SetFillColor( Color nColor ) override;
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// enable/disable XOR drawing
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virtual void SetXORMode( bool bSet, bool ) override;
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// set line color for raster operations
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virtual void SetROPLineColor( SalROPColor nROPColor ) override;
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// set fill color for raster operations
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virtual void SetROPFillColor( SalROPColor nROPColor ) override;
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// set the text color to a specific color
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virtual void SetTextColor( Color nColor ) override;
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// set the font
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virtual void SetFont( LogicalFontInstance*, int nFallbackLevel ) override;
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// get the current font's metrics
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virtual void GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) override;
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// get the repertoire of the current font
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virtual FontCharMapRef GetFontCharMap() const override;
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// get the layout capabilities of the current font
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virtual bool GetFontCapabilities(vcl::FontCapabilities &rGetFontCapabilities) const override;
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// graphics must fill supplied font list
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virtual void GetDevFontList( vcl::font::PhysicalFontCollection* ) override;
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// graphics must drop any cached font info
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virtual void ClearDevFontCache() override;
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virtual bool AddTempDevFont( vcl::font::PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;
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// CreateFontSubset: a method to get a subset of glyhps of a font
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// inside a new valid font file
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// returns TRUE if creation of subset was successful
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// parameters: rToFile: contains an osl file URL to write the subset to
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// pFont: describes from which font to create a subset
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// pGlyphIDs: the glyph ids to be extracted
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// pEncoding: the character code corresponding to each glyph
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// pWidths: the advance widths of the corresponding glyphs (in PS font units)
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// nGlyphs: the number of glyphs
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// rInfo: additional outgoing information
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// implementation note: encoding 0 with glyph id 0 should be added implicitly
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// as "undefined character"
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virtual bool CreateFontSubset( const OUString& rToFile,
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const vcl::font::PhysicalFontFace*,
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const sal_GlyphId* pGlyphIDs,
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const sal_uInt8* pEncoding,
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sal_Int32* pWidths,
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int nGlyphs,
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FontSubsetInfo& rInfo // out parameter
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) override;
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// GetEmbedFontData: gets the font data for a font marked
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// embeddable by GetDevFontList or NULL in case of error
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// parameters: pFont: describes the font in question
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// pDataLen: out parameter, contains the byte length of the returned buffer
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virtual const void* GetEmbedFontData(const vcl::font::PhysicalFontFace*, tools::Long* pDataLen) override;
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// frees the font data again
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virtual void FreeEmbedFontData( const void* pData, tools::Long nDataLen ) override;
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virtual void GetGlyphWidths( const vcl::font::PhysicalFontFace*,
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bool bVertical,
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std::vector< sal_Int32 >& rWidths,
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Ucs2UIntMap& rUnicodeEnc ) override;
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virtual std::unique_ptr<GenericSalLayout>
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GetTextLayout(int nFallbackLevel) override;
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virtual void DrawTextLayout( const GenericSalLayout& ) override;
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virtual bool supportsOperation( OutDevSupportType ) const override;
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virtual SystemGraphicsData GetGraphicsData() const override;
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/// Update settings based on the platform values
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static void updateSettingsNative( AllSettings& rSettings );
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};
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// Init/Deinit Graphics
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void ImplUpdateSysColorEntries();
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int ImplIsSysColorEntry( Color nColor );
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void ImplGetLogFontFromFontSelect( const vcl::font::FontSelectPattern&,
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const vcl::font::PhysicalFontFace*, LOGFONTW& );
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#define MAX_64KSALPOINTS ((((sal_uInt16)0xFFFF)-8)/sizeof(POINTS))
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// called extremely often from just one spot => inline
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inline bool WinFontFace::HasChar( sal_uInt32 cChar ) const
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{
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if( mxUnicodeMap->HasChar( cChar ) )
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return true;
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// second chance to allow symbol aliasing
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if( mbAliasSymbolsLow && ((cChar-0xF000) <= 0xFF) )
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cChar -= 0xF000;
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else if( mbAliasSymbolsHigh && (cChar <= 0xFF) )
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cChar += 0xF000;
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else
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return false;
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return mxUnicodeMap->HasChar( cChar );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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