gecko/gfx/thebes/gfxMacPlatformFontList.h

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7.2 KiB
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** 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 Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006-2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
* Masayuki Nakano <masayuki@d-toybox.com>
* John Daggett <jdaggett@mozilla.com>
* Jonathan Kew <jfkthame@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 gfxMacPlatformFontList_H_
#define gfxMacPlatformFontList_H_
#include "nsDataHashtable.h"
#include "nsRefPtrHashtable.h"
#include "gfxPlatformFontList.h"
#include "gfxPlatform.h"
#include "gfxPlatformMac.h"
#include <Carbon/Carbon.h>
#include "nsUnicharUtils.h"
#include "nsTArray.h"
class gfxMacPlatformFontList;
// a single member of a font family (i.e. a single face, such as Times Italic)
class MacOSFontEntry : public gfxFontEntry
{
public:
friend class gfxMacPlatformFontList;
virtual ~MacOSFontEntry() {
::CGFontRelease(mFontRef);
}
virtual CGFontRef GetFontRef() = 0;
virtual nsresult GetFontTable(PRUint32 aTableTag,
FallibleTArray<PRUint8>& aBuffer) = 0;
nsresult ReadCMAP();
bool RequiresAATLayout() const { return mRequiresAAT; }
bool IsCFF();
protected:
MacOSFontEntry(const nsAString& aPostscriptName, PRInt32 aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
virtual gfxFont* CreateFontInstance(const gfxFontStyle *aFontStyle, bool aNeedsBold);
virtual bool HasFontTable(PRUint32 aTableTag) = 0;
CGFontRef mFontRef; // owning reference to the CGFont, released on destruction
bool mFontRefInitialized;
bool mRequiresAAT;
bool mIsCFF;
bool mIsCFFInitialized;
};
// concrete subclasses of MacOSFontEntry: ATSFontEntry for 10.5, CGFontEntry for 10.6+
class ATSFontEntry : public MacOSFontEntry
{
public:
ATSFontEntry(const nsAString& aPostscriptName, PRInt32 aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
// for use with data fonts
ATSFontEntry(const nsAString& aPostscriptName, ATSFontRef aFontRef,
PRUint16 aWeight, PRUint16 aStretch, PRUint32 aItalicStyle,
gfxUserFontData *aUserFontData, bool aIsLocal);
ATSFontRef GetATSFontRef();
virtual CGFontRef GetFontRef();
virtual nsresult GetFontTable(PRUint32 aTableTag,
FallibleTArray<PRUint8>& aBuffer);
virtual void SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf,
FontListSizes* aSizes) const;
protected:
virtual bool HasFontTable(PRUint32 aTableTag);
ATSFontRef mATSFontRef;
bool mATSFontRefInitialized;
};
class CGFontEntry : public MacOSFontEntry
{
public:
CGFontEntry(const nsAString& aPostscriptName, PRInt32 aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
// for use with data fonts
CGFontEntry(const nsAString& aPostscriptName, CGFontRef aFontRef,
PRUint16 aWeight, PRUint16 aStretch, PRUint32 aItalicStyle,
bool aIsUserFont, bool aIsLocal);
virtual CGFontRef GetFontRef();
virtual nsresult GetFontTable(PRUint32 aTableTag,
FallibleTArray<PRUint8>& aBuffer);
virtual void SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf,
FontListSizes* aSizes) const;
protected:
virtual bool HasFontTable(PRUint32 aTableTag);
};
class gfxMacPlatformFontList : public gfxPlatformFontList {
public:
static gfxMacPlatformFontList* PlatformFontList() {
return static_cast<gfxMacPlatformFontList*>(sPlatformFontList);
}
static PRInt32 AppleWeightToCSSWeight(PRInt32 aAppleWeight);
virtual gfxFontEntry* GetDefaultFont(const gfxFontStyle* aStyle, bool& aNeedsBold);
virtual bool GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
const nsAString& aFontName);
virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData, PRUint32 aLength);
void ClearPrefFonts() { mPrefFonts.Clear(); }
static bool UseATSFontEntry() {
return gfxPlatformMac::GetPlatform()->OSXVersion() < MAC_OS_X_VERSION_10_6_HEX;
}
private:
friend class gfxPlatformMac;
gfxMacPlatformFontList();
virtual ~gfxMacPlatformFontList();
// initialize font lists
virtual nsresult InitFontList();
// special case font faces treated as font families (set via prefs)
void InitSingleFaceList();
gfxFontEntry* MakePlatformFontCG(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData, PRUint32 aLength);
gfxFontEntry* MakePlatformFontATS(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData, PRUint32 aLength);
static void ATSNotification(ATSFontNotificationInfoRef aInfo, void* aUserArg);
// search fonts system-wide for a given character, null otherwise
virtual gfxFontEntry* GlobalFontFallback(const PRUint32 aCh,
PRInt32 aRunScript,
const gfxFontStyle* aMatchStyle,
PRUint32& aCmapCount);
virtual bool UsesSystemFallback() { return true; }
// keep track of ATS generation to prevent unneeded updates when loading downloaded fonts
PRUint32 mATSGeneration;
enum {
kATSGenerationInitial = -1
};
// default font for use with system-wide font fallback
CTFontRef mDefaultFont;
};
#endif /* gfxMacPlatformFontList_H_ */