зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
3.5 KiB
C++
111 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsDeviceContext_h___
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#define nsDeviceContext_h___
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#include "nsIDeviceContext.h"
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#include "nsIDeviceContextSpec.h"
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#include "libimg.h"
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class nsIImageRequest;
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class nsHashtable;
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class nsFontCache;
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class DeviceContextImpl : public nsIDeviceContext
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{
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public:
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DeviceContextImpl();
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NS_DECL_ISUPPORTS
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NS_IMETHOD Init(nsNativeWidget aWidget);
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NS_IMETHOD CreateRenderingContext(nsIView *aView, nsIRenderingContext *&aContext);
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NS_IMETHOD CreateRenderingContext(nsIWidget *aWidget, nsIRenderingContext *&aContext);
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//NS_IMETHOD CreateRenderingContext(nsIRenderingContext *&aContext) = 0;
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NS_IMETHOD InitRenderingContext(nsIRenderingContext *aContext, nsIWidget *aWindow);
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NS_IMETHOD GetDevUnitsToTwips(float &aDevUnitsToTwips) const;
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NS_IMETHOD GetTwipsToDevUnits(float &aTwipsToDevUnits) const;
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NS_IMETHOD SetAppUnitsToDevUnits(float aAppUnits);
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NS_IMETHOD SetDevUnitsToAppUnits(float aDevUnits);
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NS_IMETHOD GetAppUnitsToDevUnits(float &aAppUnits) const;
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NS_IMETHOD GetDevUnitsToAppUnits(float &aDevUnits) const;
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NS_IMETHOD GetCanonicalPixelScale(float &aScale) const;
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NS_IMETHOD GetMetricsFor(const nsFont& aFont, nsIFontMetrics*& aMetrics);
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NS_IMETHOD SetZoom(float aZoom);
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NS_IMETHOD GetZoom(float &aZoom) const;
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NS_IMETHOD GetGamma(float &aGamma);
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NS_IMETHOD SetGamma(float aGamma);
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NS_IMETHOD GetGammaTable(PRUint8 *&aGammaTable);
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NS_IMETHOD LoadIconImage(PRInt32 aId, nsIImage*& aImage);
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NS_IMETHOD FirstExistingFont(const nsFont& aFont, nsString& aFaceName);
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NS_IMETHOD GetLocalFontName(const nsString& aFaceName, nsString& aLocalName,
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PRBool& aAliased);
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NS_IMETHOD FlushFontCache(void);
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NS_IMETHOD GetDepth(PRUint32& aDepth);
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NS_IMETHOD GetILColorSpace(IL_ColorSpace*& aColorSpace);
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NS_IMETHOD GetPaletteInfo(nsPaletteInfo&);
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protected:
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virtual ~DeviceContextImpl();
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void CommonInit(void);
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nsresult CreateFontCache();
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void SetGammaTable(PRUint8 * aTable, float aCurrentGamma, float aNewGamma);
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nsresult CreateIconILGroupContext();
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virtual nsresult CreateFontAliasTable();
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nsresult AliasFont(const nsString& aFont,
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const nsString& aAlias, const nsString& aAltAlias,
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PRBool aForceAlias);
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float mTwipsToPixels;
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float mPixelsToTwips;
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float mAppUnitsToDevUnits;
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float mDevUnitsToAppUnits;
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nsFontCache *mFontCache;
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float mZoom;
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float mGammaValue;
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PRUint8 *mGammaTable;
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IL_GroupContext* mIconImageGroup;
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nsIImageRequest* mIcons[NS_NUMBER_OF_ICONS];
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nsHashtable* mFontAliasTable;
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IL_ColorSpace* mColorSpace;
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public:
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nsNativeWidget mWidget;
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};
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#endif /* nsDeviceContext_h___ */
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