1 /*
2 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc.
3 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
4 * Copyright (C) 2007 Holger Hans Peter Freyther
5 * Copyright (C) 2007 Pioneer Research Center USA, Inc.
6 * Copyright (C) 2010, 2011 Brent Fulgham <bfulgham@webkit.org>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 *
23 */
24
25 // FIXME: This is temporary until all ports switch to using this file.
26 #if PLATFORM(CHROMIUM) && !OS(DARWIN)
27 #include "chromium/FontPlatformData.h"
28 #elif PLATFORM(QT)
29 #include "qt/FontPlatformData.h"
30 #elif PLATFORM(WIN) && OS(WINCE)
31 #include "wince/FontPlatformData.h"
32 #elif PLATFORM(WX)
33 #include "wx/FontPlatformData.h"
34 #elif (PLATFORM(EFL) || PLATFORM(GTK)) && USE(FREETYPE)
35 #include "freetype/FontPlatformData.h"
36 #elif (PLATFORM(EFL) || PLATFORM(GTK)) && USE(PANGO)
37 #include "pango/FontPlatformData.h"
38 #elif PLATFORM(ANDROID)
39 #include "android/fonts/FontPlatformData.h"
40 #else
41
42 #ifndef FontPlatformData_h
43 #define FontPlatformData_h
44
45 #include "FontOrientation.h"
46 #include "FontWidthVariant.h"
47 #include "GlyphBuffer.h"
48 #include "TextOrientation.h"
49
50 #if PLATFORM(WIN)
51 #include "RefCountedGDIHandle.h"
52 #endif
53
54 #if USE(CAIRO)
55 #include "HashFunctions.h"
56 #include <cairo.h>
57 #endif
58
59 #if OS(DARWIN)
60 #ifdef __OBJC__
61 @class NSFont;
62 #else
63 class NSFont;
64 #endif
65
66 typedef struct CGFont* CGFontRef;
67 #ifndef BUILDING_ON_TIGER
68 typedef const struct __CTFont* CTFontRef;
69 #endif
70
71 #include <CoreFoundation/CFBase.h>
72 #include <objc/objc-auto.h>
73 #endif
74
75 #include <wtf/Forward.h>
76 #include <wtf/PassRefPtr.h>
77 #include <wtf/RefCounted.h>
78 #include <wtf/RetainPtr.h>
79 #include <wtf/text/StringImpl.h>
80
81 #if PLATFORM(CHROMIUM) && OS(DARWIN)
82 #include "CrossProcessFontLoading.h"
83 #endif
84
85 #if PLATFORM(WIN)
86 typedef struct HFONT__* HFONT;
87 #endif
88
89 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
90 typedef struct CGFont* CGFontRef;
91 #if OS(DARWIN)
92 #ifndef BUILDING_ON_TIGER
93 typedef const struct __CTFont* CTFontRef;
94 typedef UInt32 ATSUFontID;
95 typedef UInt32 ATSFontRef;
96 #endif
97 #endif
98 #endif
99
100 namespace WebCore {
101
102 class FontDescription;
103
104 #if OS(DARWIN) && !defined(BUILDING_ON_TIGER)
toCTFontRef(NSFont * nsFont)105 inline CTFontRef toCTFontRef(NSFont *nsFont) { return reinterpret_cast<CTFontRef>(nsFont); }
106 #endif
107
108 class FontPlatformData {
109 public:
FontPlatformData(WTF::HashTableDeletedValueType)110 FontPlatformData(WTF::HashTableDeletedValueType)
111 : m_syntheticBold(false)
112 , m_syntheticOblique(false)
113 , m_orientation(Horizontal)
114 , m_textOrientation(TextOrientationVerticalRight)
115 , m_size(0)
116 , m_widthVariant(RegularWidth)
117 #if PLATFORM(WIN)
118 , m_font(WTF::HashTableDeletedValue)
119 #elif OS(DARWIN)
120 , m_font(hashTableDeletedFontValue())
121 #endif
122 #if USE(CG) && (defined(BUILDING_ON_TIGER) || PLATFORM(WIN))
123 , m_cgFont(0)
124 #elif USE(CAIRO)
125 , m_scaledFont(hashTableDeletedFontValue())
126 #endif
127 , m_isColorBitmapFont(false)
128 #if PLATFORM(WIN)
129 , m_useGDI(false)
130 #endif
131 {
132 }
133
FontPlatformData()134 FontPlatformData()
135 : m_syntheticBold(false)
136 , m_syntheticOblique(false)
137 , m_orientation(Horizontal)
138 , m_textOrientation(TextOrientationVerticalRight)
139 , m_size(0)
140 , m_widthVariant(RegularWidth)
141 #if OS(DARWIN)
142 , m_font(0)
143 #endif
144 #if USE(CG) && (defined(BUILDING_ON_TIGER) || PLATFORM(WIN))
145 , m_cgFont(0)
146 #elif USE(CAIRO)
147 , m_scaledFont(0)
148 #endif
149 , m_isColorBitmapFont(false)
150 #if PLATFORM(WIN)
151 , m_useGDI(false)
152 #endif
153 {
154 }
155
156 FontPlatformData(const FontPlatformData&);
157 FontPlatformData(const FontDescription&, const AtomicString& family);
158 FontPlatformData(float size, bool syntheticBold, bool syntheticOblique, FontOrientation orientation = Horizontal,
159 TextOrientation textOrientation = TextOrientationVerticalRight, FontWidthVariant widthVariant = RegularWidth)
m_syntheticBold(syntheticBold)160 : m_syntheticBold(syntheticBold)
161 , m_syntheticOblique(syntheticOblique)
162 , m_orientation(orientation)
163 , m_textOrientation(textOrientation)
164 , m_size(size)
165 , m_widthVariant(widthVariant)
166 #if OS(DARWIN)
167 , m_font(0)
168 #endif
169 #if USE(CG) && (defined(BUILDING_ON_TIGER) || PLATFORM(WIN))
170 , m_cgFont(0)
171 #elif USE(CAIRO)
172 , m_scaledFont(0)
173 #endif
174 , m_isColorBitmapFont(false)
175 #if PLATFORM(WIN)
176 , m_useGDI(false)
177 #endif
178 {
179 }
180
181 #if OS(DARWIN)
182 FontPlatformData(NSFont*, float size, bool syntheticBold = false, bool syntheticOblique = false, FontOrientation = Horizontal,
183 TextOrientation = TextOrientationVerticalRight, FontWidthVariant = RegularWidth);
184 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
FontPlatformData(CGFontRef cgFont,float size,bool syntheticBold,bool syntheticOblique,FontOrientation orientation,TextOrientation textOrientation,FontWidthVariant widthVariant)185 FontPlatformData(CGFontRef cgFont, float size, bool syntheticBold, bool syntheticOblique, FontOrientation orientation,
186 TextOrientation textOrientation, FontWidthVariant widthVariant)
187 : m_syntheticBold(syntheticBold)
188 , m_syntheticOblique(syntheticOblique)
189 , m_orientation(orientation)
190 , m_textOrientation(textOrientation)
191 , m_size(size)
192 , m_widthVariant(widthVariant)
193 , m_font(0)
194 , m_cgFont(cgFont)
195 , m_isColorBitmapFont(false)
196 {
197 }
198 #endif
199 #endif
200 #if PLATFORM(WIN)
201 FontPlatformData(HFONT, float size, bool syntheticBold, bool syntheticOblique, bool useGDI);
202 #if USE(CG)
203 FontPlatformData(HFONT, CGFontRef, float size, bool syntheticBold, bool syntheticOblique, bool useGDI);
204 #endif
205 #endif
206 #if USE(CAIRO)
207 FontPlatformData(cairo_font_face_t*, float size, bool bold, bool italic);
208 #endif
209
210 ~FontPlatformData();
211
212 #if PLATFORM(WIN)
hfont()213 HFONT hfont() const { return m_font ? m_font->handle() : 0; }
useGDI()214 bool useGDI() const { return m_useGDI; }
215 #elif OS(DARWIN)
font()216 NSFont* font() const { return m_font; }
217 void setFont(NSFont*);
218 #endif
219
220 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
221 #if OS(DARWIN)
222 #ifndef BUILDING_ON_TIGER
cgFont()223 CGFontRef cgFont() const { return m_cgFont.get(); }
224 #else
cgFont()225 CGFontRef cgFont() const { return m_cgFont; }
226 #endif
227 CTFontRef ctFont() const;
228
229 bool roundsGlyphAdvances() const;
230 bool allowsLigatures() const;
231 #else
cgFont()232 CGFontRef cgFont() const { return m_cgFont.get(); }
233 #endif
234 #endif
235
236 bool isFixedPitch() const;
size()237 float size() const { return m_size; }
setSize(float size)238 void setSize(float size) { m_size = size; }
syntheticBold()239 bool syntheticBold() const { return m_syntheticBold; }
syntheticOblique()240 bool syntheticOblique() const { return m_syntheticOblique; }
isColorBitmapFont()241 bool isColorBitmapFont() const { return m_isColorBitmapFont; }
orientation()242 FontOrientation orientation() const { return m_orientation; }
textOrientation()243 TextOrientation textOrientation() const { return m_textOrientation; }
widthVariant()244 FontWidthVariant widthVariant() const { return m_widthVariant; }
245
setOrientation(FontOrientation orientation)246 void setOrientation(FontOrientation orientation) { m_orientation = orientation; }
247
248 #if USE(CAIRO)
scaledFont()249 cairo_scaled_font_t* scaledFont() const { return m_scaledFont; }
250 #endif
251
hash()252 unsigned hash() const
253 {
254 #if PLATFORM(WIN) && !USE(CAIRO)
255 return m_font ? m_font->hash() : 0;
256 #elif OS(DARWIN)
257 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
258 ASSERT(m_font || !m_cgFont);
259 #endif
260 uintptr_t hashCodes[3] = { (uintptr_t)m_font, m_widthVariant, m_textOrientation << 3 | m_orientation << 2 | m_syntheticBold << 1 | m_syntheticOblique };
261 return StringHasher::hashMemory<sizeof(hashCodes)>(hashCodes);
262 #elif USE(CAIRO)
263 return PtrHash<cairo_scaled_font_t*>::hash(m_scaledFont);
264 #endif
265 }
266
267 const FontPlatformData& operator=(const FontPlatformData&);
268
269 bool operator==(const FontPlatformData& other) const
270 {
271 return platformIsEqual(other)
272 && m_size == other.m_size
273 && m_syntheticBold == other.m_syntheticBold
274 && m_syntheticOblique == other.m_syntheticOblique
275 && m_isColorBitmapFont == other.m_isColorBitmapFont
276 && m_orientation == other.m_orientation
277 && m_textOrientation == other.m_textOrientation
278 && m_widthVariant == other.m_widthVariant;
279 }
280
isHashTableDeletedValue()281 bool isHashTableDeletedValue() const
282 {
283 #if PLATFORM(WIN) && !USE(CAIRO)
284 return m_font.isHashTableDeletedValue();
285 #elif OS(DARWIN)
286 return m_font == hashTableDeletedFontValue();
287 #elif USE(CAIRO)
288 return m_scaledFont == hashTableDeletedFontValue();
289 #endif
290 }
291
292
293 #ifndef NDEBUG
294 String description() const;
295 #endif
296
297 private:
298 bool platformIsEqual(const FontPlatformData&) const;
299 void platformDataInit(const FontPlatformData&);
300 const FontPlatformData& platformDataAssign(const FontPlatformData&);
301 #if OS(DARWIN)
302 // Load various data about the font specified by |nsFont| with the size fontSize into the following output paramters:
303 // Note: Callers should always take into account that for the Chromium port, |outNSFont| isn't necessarily the same
304 // font as |nsFont|. This because the sandbox may block loading of the original font.
305 // * outNSFont - The font that was actually loaded, for the Chromium port this may be different than nsFont.
306 // The caller is responsible for calling CFRelease() on this parameter when done with it.
307 // * cgFont - CGFontRef representing the input font at the specified point size.
308 void loadFont(NSFont*, float fontSize, NSFont*& outNSFont, CGFontRef&);
hashTableDeletedFontValue()309 static NSFont* hashTableDeletedFontValue() { return reinterpret_cast<NSFont *>(-1); }
310 #elif PLATFORM(WIN)
311 void platformDataInit(HFONT, float size, HDC, WCHAR* faceName);
312 #endif
313
314 #if USE(CAIRO)
hashTableDeletedFontValue()315 static cairo_scaled_font_t* hashTableDeletedFontValue() { return reinterpret_cast<cairo_scaled_font_t*>(-1); }
316 #endif
317
318 public:
319 bool m_syntheticBold;
320 bool m_syntheticOblique;
321 FontOrientation m_orientation;
322 TextOrientation m_textOrientation;
323 float m_size;
324 FontWidthVariant m_widthVariant;
325
326 private:
327 #if OS(DARWIN)
328 NSFont* m_font;
329 #elif PLATFORM(WIN)
330 RefPtr<RefCountedGDIHandle<HFONT> > m_font;
331 #endif
332
333 #if USE(CG) || USE(SKIA_ON_MAC_CHROME)
334 #if PLATFORM(WIN)
335 RetainPtr<CGFontRef> m_cgFont;
336 #else
337 #ifndef BUILDING_ON_TIGER
338 RetainPtr<CGFontRef> m_cgFont;
339 #else
340 CGFontRef m_cgFont; // It is not necessary to refcount this, since either an NSFont owns it or some CachedFont has it referenced.
341 #endif
342 mutable RetainPtr<CTFontRef> m_CTFont;
343 #endif
344 #endif
345
346 #if USE(CAIRO)
347 cairo_scaled_font_t* m_scaledFont;
348 #endif
349
350 #if PLATFORM(CHROMIUM) && OS(DARWIN)
351 RefPtr<MemoryActivatedFont> m_inMemoryFont;
352 #endif
353
354 bool m_isColorBitmapFont;
355
356 #if PLATFORM(WIN)
357 bool m_useGDI;
358 #endif
359 };
360
361 } // namespace WebCore
362
363 #endif // FontPlatformData_h
364
365 #endif
366