summaryrefslogtreecommitdiffstats
path: root/src/gui/text/qfont.h
blob: 9d2f9a745cead2a1e250b2954df2b6bb3b8e3d46 (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
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFONT_H
#define QFONT_H

#include <QtGui/qwindowdefs.h>
#include <QtCore/qstring.h>
#include <QtCore/qsharedpointer.h>

#if defined(Q_WS_X11) || defined(Q_WS_QWS)
typedef struct FT_FaceRec_* FT_Face;
#endif

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QFontPrivate;                                     /* don't touch */
class QStringList;
class QVariant;
class Q3TextFormatCollection;

class Q_GUI_EXPORT QFont
{
    Q_GADGET
    Q_ENUMS(StyleStrategy)
public:
    enum StyleHint {
        Helvetica,  SansSerif = Helvetica,
        Times,      Serif = Times,
        Courier,    TypeWriter = Courier,
        OldEnglish, Decorative = OldEnglish,
        System,
        AnyStyle,
        Cursive,
        Monospace,
        Fantasy
    };

    enum StyleStrategy {
        PreferDefault       = 0x0001,
        PreferBitmap        = 0x0002,
        PreferDevice        = 0x0004,
        PreferOutline       = 0x0008,
        ForceOutline        = 0x0010,
        PreferMatch         = 0x0020,
        PreferQuality       = 0x0040,
        PreferAntialias     = 0x0080,
        NoAntialias         = 0x0100,
        OpenGLCompatible    = 0x0200,
        ForceIntegerMetrics = 0x0400,
        NoFontMerging       = 0x8000
    };

    enum HintingPreference {
        PreferDefaultHinting        = 0,
        PreferNoHinting             = 1,
        PreferVerticalHinting       = 2,
        PreferFullHinting           = 3
    };

    enum Weight {
        Light    = 25,
        Normal   = 50,
        DemiBold = 63,
        Bold     = 75,
        Black    = 87
    };

    enum Style {
        StyleNormal,
        StyleItalic,
        StyleOblique
    };

    enum Stretch {
        UltraCondensed =  50,
        ExtraCondensed =  62,
        Condensed      =  75,
        SemiCondensed  =  87,
        Unstretched    = 100,
        SemiExpanded   = 112,
        Expanded       = 125,
        ExtraExpanded  = 150,
        UltraExpanded  = 200
    };

    enum Capitalization {
        MixedCase,
        AllUppercase,
        AllLowercase,
        SmallCaps,
        Capitalize
    };

    enum SpacingType {
        PercentageSpacing,
        AbsoluteSpacing
    };

    enum ResolveProperties {
        FamilyResolved              = 0x0001,
        SizeResolved                = 0x0002,
        StyleHintResolved           = 0x0004,
        StyleStrategyResolved       = 0x0008,
        WeightResolved              = 0x0010,
        StyleResolved               = 0x0020,
        UnderlineResolved           = 0x0040,
        OverlineResolved            = 0x0080,
        StrikeOutResolved           = 0x0100,
        FixedPitchResolved          = 0x0200,
        StretchResolved             = 0x0400,
        KerningResolved             = 0x0800,
        CapitalizationResolved      = 0x1000,
        LetterSpacingResolved       = 0x2000,
        WordSpacingResolved         = 0x4000,
        HintingPreferenceResolved   = 0x8000,
        StyleNameResolved           = 0x10000,
        AllPropertiesResolved       = 0x1ffff
    };

    QFont();
    QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false);
    QFont(const QFont &, QPaintDevice *pd);
    QFont(const QFont &);
    ~QFont();

    QString family() const;
    void setFamily(const QString &);

    QString styleName() const;
    void setStyleName(const QString &);

    int pointSize() const;
    void setPointSize(int);
    qreal pointSizeF() const;
    void setPointSizeF(qreal);

    int pixelSize() const;
    void setPixelSize(int);

    int weight() const;
    void setWeight(int);

    inline bool bold() const;
    inline void setBold(bool);

    void setStyle(Style style);
    Style style() const;

    inline bool italic() const;
    inline void setItalic(bool b);

    bool underline() const;
    void setUnderline(bool);

    bool overline() const;
    void setOverline(bool);

    bool strikeOut() const;
    void setStrikeOut(bool);

    bool fixedPitch() const;
    void setFixedPitch(bool);

    bool kerning() const;
    void setKerning(bool);

    StyleHint styleHint() const;
    StyleStrategy styleStrategy() const;
    void setStyleHint(StyleHint, StyleStrategy = PreferDefault);
    void setStyleStrategy(StyleStrategy s);

    int stretch() const;
    void setStretch(int);

    qreal letterSpacing() const;
    SpacingType letterSpacingType() const;
    void setLetterSpacing(SpacingType type, qreal spacing);

    qreal wordSpacing() const;
    void setWordSpacing(qreal spacing);

    void setCapitalization(Capitalization);
    Capitalization capitalization() const;

    void setHintingPreference(HintingPreference hintingPreference);
    HintingPreference hintingPreference() const;

    // is raw mode still needed?
    bool rawMode() const;
    void setRawMode(bool);

    // dupicated from QFontInfo
    bool exactMatch() const;

    QFont &operator=(const QFont &);
    bool operator==(const QFont &) const;
    bool operator!=(const QFont &) const;
    bool operator<(const QFont &) const;
    operator QVariant() const;
    bool isCopyOf(const QFont &) const;
#ifdef Q_COMPILER_RVALUE_REFS
    inline QFont &operator=(QFont &&other)
    { qSwap(d, other.d); qSwap(resolve_mask, other.resolve_mask);  return *this; }
#endif

#ifdef Q_WS_WIN
    HFONT handle() const;
#else // !Q_WS_WIN
    Qt::HANDLE handle() const;
#endif // Q_WS_WIN
#ifdef Q_WS_MAC
    quint32 macFontID() const;
#endif
#if defined(Q_WS_X11) || defined(Q_WS_QWS)
    FT_Face freetypeFace() const;
#endif

    // needed for X11
    void setRawName(const QString &);
    QString rawName() const;

    QString key() const;

    QString toString() const;
    bool fromString(const QString &);

    static QString substitute(const QString &);
    static QStringList substitutes(const QString &);
    static QStringList substitutions();
    static void insertSubstitution(const QString&, const QString &);
    static void insertSubstitutions(const QString&, const QStringList &);
    static void removeSubstitution(const QString &);
    static void initialize();
    static void cleanup();
#ifndef Q_WS_QWS
    static void cacheStatistics();
#endif

    QString defaultFamily() const;
    QString lastResortFamily() const;
    QString lastResortFont() const;

    QFont resolve(const QFont &) const;
    inline uint resolve() const { return resolve_mask; }
    inline void resolve(uint mask) { resolve_mask = mask; }

#ifdef QT3_SUPPORT
    static QT3_SUPPORT QFont defaultFont();
    static QT3_SUPPORT void setDefaultFont(const QFont &);
    QT3_SUPPORT void setPixelSizeFloat(qreal);
    QT3_SUPPORT qreal pointSizeFloat() const { return pointSizeF(); }
    QT3_SUPPORT void setPointSizeFloat(qreal size) { setPointSizeF(size); }
#endif

private:
    QFont(QFontPrivate *);

    void detach();

#if defined(Q_WS_MAC)
    void macSetFont(QPaintDevice *);
#elif defined(Q_WS_X11)
    void x11SetScreen(int screen = -1);
    int x11Screen() const;
#endif

    friend class QFontPrivate;
    friend class QFontDialogPrivate;
    friend class QFontMetrics;
    friend class QFontMetricsF;
    friend class QFontInfo;
    friend class QPainter;
    friend class QPainterPrivate;
    friend class QPSPrintEngineFont;
    friend class QApplication;
    friend class QWidget;
    friend class QWidgetPrivate;
    friend class Q3TextFormatCollection;
    friend class QTextLayout;
    friend class QTextEngine;
    friend class QStackTextEngine;
    friend class QTextLine;
    friend struct QScriptLine;
    friend class QGLContext;
    friend class QWin32PaintEngine;
    friend class QAlphaPaintEngine;
    friend class QPainterPath;
    friend class QTextItemInt;
    friend class QPicturePaintEngine;
    friend class QPainterReplayer;
    friend class QPaintBufferEngine;
    friend class QCommandLinkButtonPrivate;
    friend class QFontEngine;

#ifndef QT_NO_DATASTREAM
    friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QFont &);
    friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QFont &);
#endif

    QExplicitlySharedDataPointer<QFontPrivate> d;
    uint resolve_mask;
};


inline bool QFont::bold() const
{ return weight() > Normal; }


inline void QFont::setBold(bool enable)
{ setWeight(enable ? Bold : Normal); }

inline bool QFont::italic() const
{
    return (style() != StyleNormal);
}

inline void QFont::setItalic(bool b) {
    setStyle(b ? StyleItalic : StyleNormal);
}


/*****************************************************************************
  QFont stream functions
 *****************************************************************************/

#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QFont &);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QFont &);
#endif

#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug, const QFont &);
#endif

QT_END_NAMESPACE

QT_END_HEADER

#endif // QFONT_H