summaryrefslogtreecommitdiffstats
path: root/src/gui/text/qfontdatabase_mac.cpp
blob: d65910ca11f9b81a79dd22bddafac9bfbdce0175 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <private/qt_mac_p.h>
#include "qfontengine_p.h"
#include <qfile.h>
#include <qabstractfileengine.h>
#include <stdlib.h>
#include <qendian.h>

QT_BEGIN_NAMESPACE

int qt_mac_pixelsize(const QFontDef &def, int dpi); //qfont_mac.cpp
int qt_mac_pointsize(const QFontDef &def, int dpi); //qfont_mac.cpp

#ifndef QT_MAC_USE_COCOA
static void initWritingSystems(QtFontFamily *family, ATSFontRef atsFont)
{
    ByteCount length = 0;
    if (ATSFontGetTable(atsFont, MAKE_TAG('O', 'S', '/', '2'), 0, 0, 0, &length) != noErr)
        return;
    QVarLengthArray<uchar> os2Table(length);
    if (length < 86
        || ATSFontGetTable(atsFont, MAKE_TAG('O', 'S', '/', '2'), 0, length, os2Table.data(), &length) != noErr)
        return;

    // See also qfontdatabase_win.cpp, offsets taken from OS/2 table in the TrueType spec
    quint32 unicodeRange[4] = {
        qFromBigEndian<quint32>(os2Table.data() + 42),
        qFromBigEndian<quint32>(os2Table.data() + 46),
        qFromBigEndian<quint32>(os2Table.data() + 50),
        qFromBigEndian<quint32>(os2Table.data() + 54)
    };
    quint32 codePageRange[2] = { qFromBigEndian<quint32>(os2Table.data() + 78), qFromBigEndian<quint32>(os2Table.data() + 82) };
    QList<QFontDatabase::WritingSystem> systems = determineWritingSystemsFromTrueTypeBits(unicodeRange, codePageRange);
#if 0
    QCFString name;
    ATSFontGetName(atsFont, kATSOptionFlagsDefault, &name);
    qDebug() << systems.count() << "writing systems for" << QString(name);
qDebug() << "first char" << hex << unicodeRange[0];
    for (int i = 0; i < systems.count(); ++i)
        qDebug() << QFontDatabase::writingSystemName(systems.at(i));
#endif
    for (int i = 0; i < systems.count(); ++i)
        family->writingSystems[systems.at(i)] = QtFontFamily::Supported;
}
#endif

static void initializeDb()
{
    QFontDatabasePrivate *db = privateDb();
    if(!db || db->count)
        return;

#if defined(QT_MAC_USE_COCOA) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
    QCFType<CTFontCollectionRef> collection = CTFontCollectionCreateFromAvailableFonts(0);
    if(!collection)
        return;
    QCFType<CFArrayRef> fonts = CTFontCollectionCreateMatchingFontDescriptors(collection);
    if(!fonts)
        return;
    QString foundry_name = "CoreText";
    const int numFonts = CFArrayGetCount(fonts);
    for(int i = 0; i < numFonts; ++i) {
        CTFontDescriptorRef font = (CTFontDescriptorRef)CFArrayGetValueAtIndex(fonts, i);

        QCFString family_name = (CFStringRef)CTFontDescriptorCopyAttribute(font, kCTFontFamilyNameAttribute);
        QtFontFamily *family = db->family(family_name, true);
        for(int ws = 1; ws < QFontDatabase::WritingSystemsCount; ++ws)
            family->writingSystems[ws] = QtFontFamily::Supported;
        QtFontFoundry *foundry = family->foundry(foundry_name, true);

        QtFontStyle::Key styleKey;
        if(QCFType<CFDictionaryRef> styles = (CFDictionaryRef)CTFontDescriptorCopyAttribute(font, kCTFontTraitsAttribute)) {
            if(CFNumberRef weight = (CFNumberRef)CFDictionaryGetValue(styles, kCTFontWeightTrait)) {
                Q_ASSERT(CFNumberIsFloatType(weight));
                double d;
                if(CFNumberGetValue(weight, kCFNumberDoubleType, &d)) {
                    //qDebug() << "BOLD" << (QString)family_name << d;
                    styleKey.weight = (d > 0.0) ? QFont::Bold : QFont::Normal;
                }
            }
            if(CFNumberRef italic = (CFNumberRef)CFDictionaryGetValue(styles, kCTFontSlantTrait)) {
                Q_ASSERT(CFNumberIsFloatType(italic));
                double d;
                if(CFNumberGetValue(italic, kCFNumberDoubleType, &d)) {
                    //qDebug() << "ITALIC" << (QString)family_name << d;
                    if (d > 0.0)
                        styleKey.style = QFont::StyleItalic;
                }
            }
        }

        QtFontStyle *style = foundry->style(styleKey, true);
        style->smoothScalable = true;
        if(QCFType<CFNumberRef> size = (CFNumberRef)CTFontDescriptorCopyAttribute(font, kCTFontSizeAttribute)) {
            //qDebug() << "WHEE";
            int pixel_size=0;
            if(CFNumberIsFloatType(size)) {
                double d;
                CFNumberGetValue(size, kCFNumberDoubleType, &d);
                pixel_size = d;
            } else {
                CFNumberGetValue(size, kCFNumberIntType, &pixel_size);
            }
            //qDebug() << "SIZE" << (QString)family_name << pixel_size;
            if(pixel_size)
                style->pixelSize(pixel_size, true);
        } else {
            //qDebug() << "WTF?";
        }
    }
} else 
#endif
    {
#ifndef QT_MAC_USE_COCOA
        FMFontIterator it;
        if (!FMCreateFontIterator(0, 0, kFMUseGlobalScopeOption, &it)) {
            while (true) {
                FMFont fmFont;
                if (FMGetNextFont(&it, &fmFont) != noErr)
                    break;

                FMFontFamily fmFamily;
                FMFontStyle fmStyle;
                QString familyName;

                QtFontStyle::Key styleKey;

                ATSFontRef atsFont = FMGetATSFontRefFromFont(fmFont);

                if (!FMGetFontFamilyInstanceFromFont(fmFont, &fmFamily, &fmStyle)) {
                    { //sanity check the font, and see if we can use it at all! --Sam
                        ATSUFontID fontID;
                        if(ATSUFONDtoFontID(fmFamily, 0, &fontID) != noErr)
                            continue;
                    }

                    if (fmStyle & ::italic)
                        styleKey.style = QFont::StyleItalic;
                    if (fmStyle & ::bold)
                        styleKey.weight = QFont::Bold;

                    ATSFontFamilyRef familyRef = FMGetATSFontFamilyRefFromFontFamily(fmFamily);
                    QCFString cfFamilyName;;
                    ATSFontFamilyGetName(familyRef, kATSOptionFlagsDefault, &cfFamilyName);
                    familyName = cfFamilyName;
                } else {
                    QCFString cfFontName;
                    ATSFontGetName(atsFont, kATSOptionFlagsDefault, &cfFontName);
                    familyName = cfFontName;
                    quint16 macStyle = 0;
                    {
                        uchar data[4];
                        ByteCount len = 4;
                        if (ATSFontGetTable(atsFont, MAKE_TAG('h', 'e', 'a', 'd'), 44, 4, &data, &len) == noErr)
                            macStyle = qFromBigEndian<quint16>(data);
                    }
                    if (macStyle & 1)
                        styleKey.weight = QFont::Bold;
                    if (macStyle & 2)
                        styleKey.style = QFont::StyleItalic;
                }

                QtFontFamily *family = db->family(familyName, true);
                QtFontFoundry *foundry = family->foundry(QString(), true);
                QtFontStyle *style = foundry->style(styleKey, true);
                style->pixelSize(0, true);
                style->smoothScalable = true;

                initWritingSystems(family, atsFont);
            }
            FMDisposeFontIterator(&it);
        }
#endif
    }

}

static inline void load(const QString & = QString(), int = -1)
{
    initializeDb();
}

static const char *styleHint(const QFontDef &request)
{
    const char *stylehint = 0;
    switch (request.styleHint) {
    case QFont::SansSerif:
        stylehint = "Arial";
        break;
    case QFont::Serif:
        stylehint = "Times New Roman";
        break;
    case QFont::TypeWriter:
        stylehint = "Courier New";
        break;
    default:
        if (request.fixedPitch)
            stylehint = "Courier New";
        break;
    }
    return stylehint;
}

void QFontDatabase::load(const QFontPrivate *d, int script)
{
    // sanity checks
    if(!qApp)
        qWarning("QFont: Must construct a QApplication before a QFont");

    Q_ASSERT(script >= 0 && script < QUnicodeTables::ScriptCount);
    Q_UNUSED(script);

    QFontDef req = d->request;
    req.pixelSize = qt_mac_pixelsize(req, d->dpi);

    // set the point size to 0 to get better caching
    req.pointSize = 0;
    QFontCache::Key key = QFontCache::Key(req, QUnicodeTables::Common, d->screen);

    if(!(d->engineData = QFontCache::instance()->findEngineData(key))) {
        d->engineData = new QFontEngineData;
        QFontCache::instance()->insertEngineData(key, d->engineData);
    } else {
        d->engineData->ref.ref();
    }
    if(d->engineData->engine) // already loaded
        return;

    // set it to the actual pointsize, so QFontInfo will do the right thing
    req.pointSize = qRound(qt_mac_pointsize(d->request, d->dpi));

    QFontEngine *e = QFontCache::instance()->findEngine(key);
    if(!e && qt_enable_test_font && req.family == QLatin1String("__Qt__Box__Engine__")) {
        e = new QTestFontEngine(req.pixelSize);
        e->fontDef = req;
    }

    if(e) {
        e->ref.ref();
        d->engineData->engine = e;
        return; // the font info and fontdef should already be filled
    }

    //find the font
    QStringList family_list = familyList(req);

    const char *stylehint = styleHint(req);
    if (stylehint)
        family_list << QLatin1String(stylehint);

    // add QFont::defaultFamily() to the list, for compatibility with
    // previous versions
    family_list << QApplication::font().defaultFamily();

    ATSFontFamilyRef familyRef = 0;
    ATSFontRef fontRef = 0;

    QMutexLocker locker(fontDatabaseMutex());
    QFontDatabasePrivate *db = privateDb();
    if (!db->count)
        initializeDb();
    for(int i = 0; i < family_list.size(); ++i) {
        for (int k = 0; k < db->count; ++k) {
            if (db->families[k]->name.compare(family_list.at(i), Qt::CaseInsensitive) == 0) {
                QByteArray family_name = db->families[k]->name.toUtf8();
                familyRef = ATSFontFamilyFindFromName(QCFString(db->families[k]->name), kATSOptionFlagsDefault);
                if (familyRef) {
                    fontRef = ATSFontFindFromName(QCFString(db->families[k]->name), kATSOptionFlagsDefault);
                    goto FamilyFound;
                }
            }
        }
    }
FamilyFound:
    //fill in the engine's font definition
    QFontDef fontDef = d->request; //copy..
    if(fontDef.pointSize < 0)
	fontDef.pointSize = qt_mac_pointsize(fontDef, d->dpi);
    else
	fontDef.pixelSize = qt_mac_pixelsize(fontDef, d->dpi);
#if 0
    ItemCount name_count;
    if(ATSUCountFontNames(fontID, &name_count) == noErr && name_count) {
        ItemCount actualName_size;
        if(ATSUGetIndFontName(fontID, 0, 0, 0, &actualName_size, 0, 0, 0, 0) == noErr && actualName_size) {
            QByteArray actualName(actualName_size);
            if(ATSUGetIndFontName(fontID, 0, actualName_size, actualName.data(), &actualName_size, 0, 0, 0, 0) == noErr && actualName_size)
                fontDef.family = QString::fromUtf8(actualName);
        }
    }
#else
    {
        QCFString actualName;
        if(ATSFontFamilyGetName(familyRef, kATSOptionFlagsDefault, &actualName) == noErr)
            fontDef.family = actualName;
    }
#endif

#ifdef QT_MAC_USE_COCOA
    QFontEngine *engine = new QCoreTextFontEngineMulti(familyRef, fontRef, fontDef, d->kerning);
#elif 1
    QFontEngine *engine = new QFontEngineMacMulti(familyRef, fontRef, fontDef, d->kerning);
#else
    ATSFontFamilyRef atsFamily = familyRef;
    ATSFontFamilyRef atsFontRef = fontRef;

    FMFont fontID;
    FMFontFamily fmFamily;
    FMFontStyle fntStyle = 0;
    fmFamily = FMGetFontFamilyFromATSFontFamilyRef(atsFamily);
    if (fmFamily == kInvalidFontFamily) {
        // Use the ATSFont then...
        fontID = FMGetFontFromATSFontRef(atsFontRef);
    } else {
        if (fontDef.weight >= QFont::Bold)
            fntStyle |= ::bold;
        if (fontDef.style != QFont::StyleNormal)
            fntStyle |= ::italic;

        FMFontStyle intrinsicStyle;
        FMFont fnt = 0;
        if (FMGetFontFromFontFamilyInstance(fmFamily, fntStyle, &fnt, &intrinsicStyle) == noErr)
           fontID = FMGetATSFontRefFromFont(fnt);
    }

    OSStatus status;

    const int maxAttributeCount = 5;
    ATSUAttributeTag tags[maxAttributeCount + 1];
    ByteCount sizes[maxAttributeCount + 1];
    ATSUAttributeValuePtr values[maxAttributeCount + 1];
    int attributeCount = 0;

    Fixed size = FixRatio(fontDef.pixelSize, 1);
    tags[attributeCount] = kATSUSizeTag;
    sizes[attributeCount] = sizeof(size);
    values[attributeCount] = &size;
    ++attributeCount;

    tags[attributeCount] = kATSUFontTag;
    sizes[attributeCount] = sizeof(fontID);
    values[attributeCount] = &fontID;
    ++attributeCount;

    CGAffineTransform transform = CGAffineTransformIdentity;
    if (fontDef.stretch != 100) {
        transform = CGAffineTransformMakeScale(float(fontDef.stretch) / float(100), 1);
        tags[attributeCount] = kATSUFontMatrixTag;
        sizes[attributeCount] = sizeof(transform);
        values[attributeCount] = &transform;
        ++attributeCount;
    }

    ATSUStyle style;
    status = ATSUCreateStyle(&style);
    Q_ASSERT(status == noErr);

    Q_ASSERT(attributeCount < maxAttributeCount + 1);
    status = ATSUSetAttributes(style, attributeCount, tags, sizes, values);
    Q_ASSERT(status == noErr);

    QFontEngine *engine = new QFontEngineMac(style, fontID, fontDef, /*multiEngine*/ 0);
    ATSUDisposeStyle(style);
#endif
    d->engineData->engine = engine;
    engine->ref.ref(); //a ref for the engineData->engine
    QFontCache::instance()->insertEngine(key, engine);
}

static void registerFont(QFontDatabasePrivate::ApplicationFont *fnt)
{
    ATSFontContainerRef handle;
    OSStatus e  = noErr;

    if(fnt->data.isEmpty()) {
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
        if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
                extern OSErr qt_mac_create_fsref(const QString &, FSRef *); // qglobal.cpp
                FSRef ref;
                if(qt_mac_create_fsref(fnt->fileName, &ref) != noErr)
                    return;

                ATSFontActivateFromFileReference(&ref, kATSFontContextLocal, kATSFontFormatUnspecified, 0, kATSOptionFlagsDefault, &handle);
        } else 
#endif
        {
#ifndef Q_WS_MAC64
                extern Q_CORE_EXPORT OSErr qt_mac_create_fsspec(const QString &, FSSpec *); // global.cpp
                FSSpec spec;
                if(qt_mac_create_fsspec(fnt->fileName, &spec) != noErr)
                    return;

                e = ATSFontActivateFromFileSpecification(&spec, kATSFontContextLocal, kATSFontFormatUnspecified,
                                                   0, kATSOptionFlagsDefault, &handle);
#endif
        }
    } else {
        e = ATSFontActivateFromMemory((void *)fnt->data.constData(), fnt->data.size(), kATSFontContextLocal,
                                           kATSFontFormatUnspecified, 0, kATSOptionFlagsDefault, &handle);

        fnt->data = QByteArray();
    }

    if(e != noErr)
        return;

    ItemCount fontCount = 0;
    e = ATSFontFindFromContainer(handle, kATSOptionFlagsDefault, 0, 0, &fontCount);
    if(e != noErr)
        return;

    QVarLengthArray<ATSFontRef> containedFonts(fontCount);
    e = ATSFontFindFromContainer(handle, kATSOptionFlagsDefault, fontCount, containedFonts.data(), &fontCount);
    if(e != noErr)
        return;

    fnt->families.clear();
    for(int i = 0; i < containedFonts.size(); ++i) {
        QCFString family;
        ATSFontGetName(containedFonts[i], kATSOptionFlagsDefault, &family);
        fnt->families.append(family);
    }

    fnt->handle = handle;
}

bool QFontDatabase::removeApplicationFont(int handle)
{
    QMutexLocker locker(fontDatabaseMutex());

    QFontDatabasePrivate *db = privateDb();
    if(handle < 0 || handle >= db->applicationFonts.count())
        return false;

    OSStatus e = ATSFontDeactivate(db->applicationFonts.at(handle).handle,
                                   /*iRefCon=*/0, kATSOptionFlagsDefault);
    if(e != noErr)
        return false;

    db->applicationFonts[handle] = QFontDatabasePrivate::ApplicationFont();

    db->invalidate();
    return true;
}

bool QFontDatabase::removeAllApplicationFonts()
{
    QMutexLocker locker(fontDatabaseMutex());

    QFontDatabasePrivate *db = privateDb();
    for(int i = 0; i < db->applicationFonts.count(); ++i) {
        if(!removeApplicationFont(i))
            return false;
    }
    return true;
}

bool QFontDatabase::supportsThreadedFontRendering()
{
    return true;
}

QT_END_NAMESPACE