зеркало из https://github.com/mozilla/pjs.git
177 строки
6.3 KiB
C++
177 строки
6.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Roland Mainz <Roland.Mainz@informatik.med.uni-giessen.de>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsDeviceContext_h___
|
|
#define nsDeviceContext_h___
|
|
|
|
#include "nsIDeviceContext.h"
|
|
#include "nsIDeviceContextSpec.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIAtom.h"
|
|
#include "nsVoidArray.h"
|
|
#include "nsIObserver.h"
|
|
#include "nsIObserverService.h"
|
|
#include "nsWeakReference.h"
|
|
#include "gfxCore.h"
|
|
|
|
class nsIImageRequest;
|
|
class nsHashtable;
|
|
|
|
class NS_GFX nsFontCache
|
|
{
|
|
public:
|
|
nsFontCache();
|
|
virtual ~nsFontCache();
|
|
|
|
virtual nsresult Init(nsIDeviceContext* aContext);
|
|
virtual nsresult GetDeviceContext(nsIDeviceContext *&aContext) const;
|
|
virtual nsresult GetMetricsFor(const nsFont& aFont, nsIAtom* aLangGroup,
|
|
nsIFontMetrics *&aMetrics);
|
|
|
|
nsresult FontMetricsDeleted(const nsIFontMetrics* aFontMetrics);
|
|
nsresult Compact();
|
|
nsresult Flush();
|
|
/* printer device context classes may create their own
|
|
* subclasses of nsFontCache (and override this method) and override
|
|
* DeviceContextImpl::CreateFontCache (see bug 81311).
|
|
*/
|
|
virtual nsresult CreateFontMetricsInstance(nsIFontMetrics** fm);
|
|
|
|
protected:
|
|
nsVoidArray mFontMetrics;
|
|
nsIDeviceContext *mContext; // we do not addref this since
|
|
// ownership is implied. MMP.
|
|
};
|
|
|
|
#undef IMETHOD_VISIBILITY
|
|
#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT
|
|
|
|
class NS_GFX DeviceContextImpl : public nsIDeviceContext,
|
|
public nsIObserver,
|
|
public nsSupportsWeakReference
|
|
{
|
|
public:
|
|
DeviceContextImpl();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
NS_IMETHOD Init(nsNativeWidget aWidget);
|
|
|
|
NS_IMETHOD CreateRenderingContext(nsIView *aView, nsIRenderingContext *&aContext);
|
|
NS_IMETHOD CreateRenderingContext(nsIWidget *aWidget, nsIRenderingContext *&aContext);
|
|
NS_IMETHOD CreateRenderingContext(nsIRenderingContext *&aContext){return NS_ERROR_NOT_IMPLEMENTED;}
|
|
NS_IMETHOD CreateRenderingContext(nsIDrawingSurface* aSurface, nsIRenderingContext *&aContext);
|
|
NS_IMETHOD CreateRenderingContextInstance(nsIRenderingContext *&aContext);
|
|
|
|
NS_IMETHOD GetCanonicalPixelScale(float &aScale) const;
|
|
NS_IMETHOD SetCanonicalPixelScale(float aScale);
|
|
|
|
NS_IMETHOD GetMetricsFor(const nsFont& aFont, nsIAtom* aLangGroup,
|
|
nsIFontMetrics*& aMetrics);
|
|
NS_IMETHOD GetMetricsFor(const nsFont& aFont, nsIFontMetrics*& aMetrics);
|
|
|
|
NS_IMETHOD SetZoom(float aZoom);
|
|
NS_IMETHOD GetZoom(float &aZoom) const;
|
|
|
|
NS_IMETHOD SetTextZoom(float aTextZoom);
|
|
NS_IMETHOD GetTextZoom(float &aTextZoom) const;
|
|
|
|
NS_IMETHOD FirstExistingFont(const nsFont& aFont, nsString& aFaceName);
|
|
|
|
NS_IMETHOD GetLocalFontName(const nsString& aFaceName, nsString& aLocalName,
|
|
PRBool& aAliased);
|
|
|
|
NS_IMETHOD CreateFontCache();
|
|
NS_IMETHOD FontMetricsDeleted(const nsIFontMetrics* aFontMetrics);
|
|
NS_IMETHOD FlushFontCache(void);
|
|
|
|
NS_IMETHOD GetDepth(PRUint32& aDepth);
|
|
|
|
NS_IMETHOD GetPaletteInfo(nsPaletteInfo& aPaletteInfo);
|
|
|
|
NS_IMETHOD PrepareDocument(PRUnichar * aTitle,
|
|
PRUnichar* aPrintToFileName) { return NS_OK; }
|
|
NS_IMETHOD AbortDocument(void) { return NS_OK; }
|
|
|
|
#ifdef NS_PRINT_PREVIEW
|
|
NS_IMETHOD SetAltDevice(nsIDeviceContext* aAltDC);
|
|
NS_IMETHOD GetAltDevice(nsIDeviceContext** aAltDC) { *aAltDC = mAltDC.get(); NS_IF_ADDREF(*aAltDC); return NS_OK;}
|
|
NS_IMETHOD SetUseAltDC(PRUint8 aValue, PRBool aOn);
|
|
#endif
|
|
|
|
private:
|
|
/* Helper methods for |CreateRenderingContext|&co. */
|
|
nsresult InitRenderingContext(nsIRenderingContext *aContext, nsIWidget *aWindow);
|
|
nsresult InitRenderingContext(nsIRenderingContext *aContext, nsIDrawingSurface* aSurface);
|
|
|
|
protected:
|
|
virtual ~DeviceContextImpl();
|
|
|
|
void CommonInit(void);
|
|
nsresult CreateIconILGroupContext();
|
|
virtual nsresult CreateFontAliasTable();
|
|
nsresult AliasFont(const nsString& aFont,
|
|
const nsString& aAlias, const nsString& aAltAlias,
|
|
PRBool aForceAlias);
|
|
void GetLocaleLangGroup(void);
|
|
|
|
nsFontCache *mFontCache;
|
|
nsCOMPtr<nsIAtom> mLocaleLangGroup; // XXX temp fix for performance bug - erik
|
|
float mZoom;
|
|
float mTextZoom;
|
|
nsHashtable* mFontAliasTable;
|
|
float mCPixelScale;
|
|
|
|
#ifdef NS_PRINT_PREVIEW
|
|
nsCOMPtr<nsIDeviceContext> mAltDC;
|
|
PRUint8 mUseAltDC;
|
|
#endif
|
|
|
|
public:
|
|
nsNativeWidget mWidget;
|
|
#ifdef NS_DEBUG
|
|
PRBool mInitialized;
|
|
#endif
|
|
};
|
|
|
|
#undef IMETHOD_VISIBILITY
|
|
#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
|
|
|
|
#endif /* nsDeviceContext_h___ */
|