gfx/thebes/gfxMacPlatformFontList.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   2  * ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
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  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  15  * The Original Code is Mozilla Corporation code.
  16  *
  17  * The Initial Developer of the Original Code is Mozilla Foundation.
  18  * Portions created by the Initial Developer are Copyright (C) 2006-2009
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *   Vladimir Vukicevic <vladimir@pobox.com>
  23  *   Masayuki Nakano <masayuki@d-toybox.com>
  24  *   John Daggett <jdaggett@mozilla.com>
  25  *   Jonathan Kew <jfkthame@gmail.com>
  26  *
  27  * Alternatively, the contents of this file may be used under the terms of
  28  * either the GNU General Public License Version 2 or later (the "GPL"), or
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  36  * the provisions above, a recipient may use your version of this file under
  37  * the terms of any one of the MPL, the GPL or the LGPL.
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  39  * ***** END LICENSE BLOCK ***** */
  40
  41 #ifndef gfxMacPlatformFontList_H_
  42 #define gfxMacPlatformFontList_H_
  43
  44 #include "nsDataHashtable.h"
  45 #include "nsRefPtrHashtable.h"
  46
  47 #include "gfxPlatformFontList.h"
  48 #include "gfxPlatform.h"
  49
  50 #include <Carbon/Carbon.h>
  51
  52 #include "nsUnicharUtils.h"
  53 #include "nsTArray.h"
  54
  55 class gfxMacPlatformFontList;
  56
  57 // a single member of a font family (i.e. a single face, such as Times Italic)
  58 class MacOSFontEntry : public gfxFontEntry
  59 {
  60 public:
  61     friend class gfxMacPlatformFontList;
  62
  63     MacOSFontEntry(const nsAString& aPostscriptName, PRInt32 aWeight,
  64                    gfxFontFamily *aFamily, PRBool aIsStandardFace = PR_FALSE);
  65
  66     ATSFontRef GetFontRef();
  67     nsresult ReadCMAP();
  68
  69     virtual nsresult GetFontTable(PRUint32 aTableTag, nsTArray<PRUint8>& aBuffer);
  70
  71 protected:
  72     // for use with data fonts
  73     MacOSFontEntry(const nsAString& aPostscriptName, ATSFontRef aFontRef,
  74                    PRUint16 aWeight, PRUint16 aStretch, PRUint32 aItalicStyle,
  75                    gfxUserFontData *aUserFontData);
  76
  77     virtual gfxFont* CreateFontInstance(const gfxFontStyle *aFontStyle, PRBool aNeedsBold);
  78
  79     ATSFontRef mATSFontRef;
  80     PRPackedBool mATSFontRefInitialized;
  81 };
  82
  83 class gfxMacPlatformFontList : public gfxPlatformFontList {
  84 public:
  85     static gfxMacPlatformFontList* PlatformFontList() {
  86         return static_cast<gfxMacPlatformFontList*>(sPlatformFontList);
  87     }
  88
  89     static PRInt32 AppleWeightToCSSWeight(PRInt32 aAppleWeight);
  90
  91     virtual gfxFontEntry* GetDefaultFont(const gfxFontStyle* aStyle, PRBool& aNeedsBold);
  92
  93     virtual PRBool GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
  94
  95     virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
  96                                           const nsAString& aFontName);
  97
  98     virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
  99                                            const PRUint8 *aFontData, PRUint32 aLength);
 100
 101     void ClearPrefFonts() { mPrefFonts.Clear(); }
 102
 103 private:
 104     friend class gfxPlatformMac;
 105
 106     gfxMacPlatformFontList();
 107
 108     // initialize font lists
 109     virtual void InitFontList();
 110
 111     // special case font faces treated as font families (set via prefs)
 112     void InitSingleFaceList();
 113
 114     // eliminate faces which have the same ATS font reference
 115     void EliminateDuplicateFaces(const nsAString& aFamilyName);
 116
 117     static void ATSNotification(ATSFontNotificationInfoRef aInfo, void* aUserArg);
 118
 119     // keep track of ATS generation to prevent unneeded updates when loading downloaded fonts
 120     PRUint32 mATSGeneration;
 121
 122     enum {
 123         kATSGenerationInitial = -1
 124     };
 125 };
 126
 127 #endif /* gfxMacPlatformFontList_H_ */