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
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Foundation code.
16 : *
17 : * The Initial Developer of the Original Code is Mozilla Foundation.
18 : * Portions created by the Initial Developer are Copyright (C) 2005
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Vladimir Vukicevic <vladimir@mozilla.com>
23 : * Masayuki Nakano <masayuki@d-toybox.com>
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef GFX_PANGOFONTS_H
40 : #define GFX_PANGOFONTS_H
41 :
42 : #include "cairo.h"
43 : #include "gfxTypes.h"
44 : #include "gfxFont.h"
45 :
46 : #include "nsAutoRef.h"
47 : #include "nsTArray.h"
48 :
49 : #include <pango/pango.h>
50 :
51 : class gfxFcFontSet;
52 : class gfxFcFont;
53 : class gfxProxyFontEntry;
54 : typedef struct _FcPattern FcPattern;
55 : typedef struct FT_FaceRec_* FT_Face;
56 : typedef struct FT_LibraryRec_ *FT_Library;
57 :
58 : class THEBES_API gfxPangoFontGroup : public gfxFontGroup {
59 : public:
60 : gfxPangoFontGroup (const nsAString& families,
61 : const gfxFontStyle *aStyle,
62 : gfxUserFontSet *aUserFontSet);
63 : virtual ~gfxPangoFontGroup ();
64 :
65 : virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
66 :
67 : virtual gfxFont *GetFontAt(PRInt32 i);
68 :
69 : virtual void UpdateFontList();
70 :
71 : virtual already_AddRefed<gfxFont>
72 : FindFontForChar(PRUint32 aCh, PRUint32 aPrevCh, PRInt32 aRunScript,
73 : gfxFont *aPrevMatchedFont,
74 : PRUint8 *aMatchType);
75 :
76 : static void Shutdown();
77 :
78 : // Used for @font-face { src: local(); }
79 : static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
80 : const nsAString &aFullname);
81 : // Used for @font-face { src: url(); }
82 : static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry,
83 : const PRUint8 *aFontData,
84 : PRUint32 aLength);
85 :
86 : // Interfaces used internally
87 : // (but public so that they can be accessed from non-member functions):
88 :
89 : // A language guessed from the gfxFontStyle
90 : PangoLanguage *GetPangoLanguage() { return mPangoLanguage; }
91 :
92 : private:
93 : // @param aLang [in] language to use for pref fonts and system default font
94 : // selection, or NULL for the language guessed from the gfxFontStyle.
95 : // The FontGroup holds a reference to this set.
96 : gfxFcFontSet *GetFontSet(PangoLanguage *aLang = NULL);
97 :
98 0 : class FontSetByLangEntry {
99 : public:
100 : FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet);
101 : PangoLanguage *mLang;
102 : nsRefPtr<gfxFcFontSet> mFontSet;
103 : };
104 : // There is only one of entry in this array unless characters from scripts
105 : // of other languages are measured.
106 : nsAutoTArray<FontSetByLangEntry,1> mFontSets;
107 :
108 : gfxFloat mSizeAdjustFactor;
109 : PangoLanguage *mPangoLanguage;
110 :
111 : void GetFcFamilies(nsTArray<nsString> *aFcFamilyList,
112 : nsIAtom *aLanguage);
113 :
114 : // @param aLang [in] language to use for pref fonts and system font
115 : // resolution, or NULL to guess a language from the gfxFontStyle.
116 : // @param aMatchPattern [out] if non-NULL, will return the pattern used.
117 : already_AddRefed<gfxFcFontSet>
118 : MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor,
119 : nsAutoRef<FcPattern> *aMatchPattern = NULL);
120 :
121 : gfxFcFontSet *GetBaseFontSet();
122 : gfxFcFont *GetBaseFont();
123 :
124 : gfxFloat GetSizeAdjustFactor()
125 : {
126 : if (mFontSets.Length() == 0)
127 : GetBaseFontSet();
128 : return mSizeAdjustFactor;
129 : }
130 :
131 : static FT_Library GetFTLibrary();
132 : };
133 :
134 : #endif /* GFX_PANGOFONTS_H */
|