summaryrefslogtreecommitdiffstats
path: root/src/gui/text/qtextobject.h
blob: d62fab2a73cec9903b037b3f2dbbc282ad49e7e7 (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
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QTEXTOBJECT_H
#define QTEXTOBJECT_H

#include <QtCore/qobject.h>
#include <QtGui/qtextformat.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QTextObjectPrivate;
class QTextDocument;
class QTextDocumentPrivate;
class QTextCursor;
class QTextBlock;
class QTextFragment;
class QTextLayout;
class QTextList;

class Q_GUI_EXPORT QTextObject : public QObject
{
    Q_OBJECT

protected:
    explicit QTextObject(QTextDocument *doc);
    ~QTextObject();

    void setFormat(const QTextFormat &format);

public:
    QTextFormat format() const;
    int formatIndex() const;

    QTextDocument *document() const;

    int objectIndex() const;

    QTextDocumentPrivate *docHandle() const;

protected:
    QTextObject(QTextObjectPrivate &p, QTextDocument *doc);

private:
    Q_DECLARE_PRIVATE(QTextObject)
    Q_DISABLE_COPY(QTextObject)
    friend class QTextDocumentPrivate;
};

class QTextBlockGroupPrivate;
class Q_GUI_EXPORT QTextBlockGroup : public QTextObject
{
    Q_OBJECT

protected:
    explicit QTextBlockGroup(QTextDocument *doc);
    ~QTextBlockGroup();

    virtual void blockInserted(const QTextBlock &block);
    virtual void blockRemoved(const QTextBlock &block);
    virtual void blockFormatChanged(const QTextBlock &block);

    QList<QTextBlock> blockList() const;

protected:
    QTextBlockGroup(QTextBlockGroupPrivate &p, QTextDocument *doc);
private:
    Q_DECLARE_PRIVATE(QTextBlockGroup)
    Q_DISABLE_COPY(QTextBlockGroup)
    friend class QTextDocumentPrivate;
};

class Q_GUI_EXPORT QTextFrameLayoutData {
public:
    virtual ~QTextFrameLayoutData();
};

class QTextFramePrivate;
class Q_GUI_EXPORT QTextFrame : public QTextObject
{
    Q_OBJECT

public:
    explicit QTextFrame(QTextDocument *doc);
    ~QTextFrame();

    inline void setFrameFormat(const QTextFrameFormat &format);
    QTextFrameFormat frameFormat() const { return QTextObject::format().toFrameFormat(); }

    QTextCursor firstCursorPosition() const;
    QTextCursor lastCursorPosition() const;
    int firstPosition() const;
    int lastPosition() const;

    QTextFrameLayoutData *layoutData() const;
    void setLayoutData(QTextFrameLayoutData *data);

    QList<QTextFrame *> childFrames() const;
    QTextFrame *parentFrame() const;

    class Q_GUI_EXPORT iterator {
        QTextFrame *f;
        int b;
        int e;
        QTextFrame *cf;
        int cb;

        friend class QTextFrame;
        friend class QTextTableCell;
        friend class QTextDocumentLayoutPrivate;
        iterator(QTextFrame *frame, int block, int begin, int end);
    public:
        iterator();
        iterator(const iterator &o);
        iterator &operator=(const iterator &o);

        QTextFrame *parentFrame() const { return f; }

        QTextFrame *currentFrame() const;
        QTextBlock currentBlock() const;

        bool atEnd() const { return !cf && cb == e; }

        inline bool operator==(const iterator &o) const { return f == o.f && cf == o.cf && cb == o.cb; }
        inline bool operator!=(const iterator &o) const { return f != o.f || cf != o.cf || cb != o.cb; }
        iterator &operator++();
        inline iterator operator++(int) { iterator tmp = *this; operator++(); return tmp; }
        iterator &operator--();
        inline iterator operator--(int) { iterator tmp = *this; operator--(); return tmp; }
    };

    friend class iterator;
    // more Qt
    typedef iterator Iterator;

    iterator begin() const;
    iterator end() const;

protected:
    QTextFrame(QTextFramePrivate &p, QTextDocument *doc);
private:
    friend class QTextDocumentPrivate;
    Q_DECLARE_PRIVATE(QTextFrame)
    Q_DISABLE_COPY(QTextFrame)
};
Q_DECLARE_TYPEINFO(QTextFrame::iterator, Q_MOVABLE_TYPE);

inline void QTextFrame::setFrameFormat(const QTextFrameFormat &aformat)
{ QTextObject::setFormat(aformat); }

class Q_GUI_EXPORT QTextBlockUserData {
public:
    virtual ~QTextBlockUserData();
};

class Q_GUI_EXPORT QTextBlock
{
    friend class QSyntaxHighlighter;
public:
    inline QTextBlock(QTextDocumentPrivate *priv, int b) : p(priv), n(b) {}
    inline QTextBlock() : p(0), n(0) {}
    inline QTextBlock(const QTextBlock &o) : p(o.p), n(o.n) {}
    inline QTextBlock &operator=(const QTextBlock &o) { p = o.p; n = o.n; return *this; }

    inline bool isValid() const { return p != 0 && n != 0; }

    inline bool operator==(const QTextBlock &o) const { return p == o.p && n == o.n; }
    inline bool operator!=(const QTextBlock &o) const { return p != o.p || n != o.n; }
    inline bool operator<(const QTextBlock &o) const { return position() < o.position(); }

    int position() const;
    int length() const;
    bool contains(int position) const;

    QTextLayout *layout() const;
    void clearLayout();
    QTextBlockFormat blockFormat() const;
    int blockFormatIndex() const;
    QTextCharFormat charFormat() const;
    int charFormatIndex() const;

    QString text() const;

    const QTextDocument *document() const;

    QTextList *textList() const;

    QTextBlockUserData *userData() const;
    void setUserData(QTextBlockUserData *data);

    int userState() const;
    void setUserState(int state);

    int revision() const;
    void setRevision(int rev);

    bool isVisible() const;
    void setVisible(bool visible);

    int blockNumber() const;
    int firstLineNumber() const;

    void setLineCount(int count);
    int lineCount() const;

    class Q_GUI_EXPORT iterator {
        const QTextDocumentPrivate *p;
        int b;
        int e;
        int n;
        friend class QTextBlock;
        iterator(const QTextDocumentPrivate *priv, int begin, int end, int f) : p(priv), b(begin), e(end), n(f) {}
    public:
        iterator() : p(0), b(0), e(0), n(0) {}
        iterator(const iterator &o) : p(o.p), b(o.b), e(o.e), n(o.n) {}

        QTextFragment fragment() const;

        bool atEnd() const { return n == e; }

        inline bool operator==(const iterator &o) const { return p == o.p && n == o.n; }
        inline bool operator!=(const iterator &o) const { return p != o.p || n != o.n; }
        iterator &operator++();
        inline iterator operator++(int) { iterator tmp = *this; operator++(); return tmp; }
        iterator &operator--();
        inline iterator operator--(int) { iterator tmp = *this; operator--(); return tmp; }
    };

    // more Qt
    typedef iterator Iterator;

    iterator begin() const;
    iterator end() const;

    QTextBlock next() const;
    QTextBlock previous() const;

    inline QTextDocumentPrivate *docHandle() const { return p; }
    inline int fragmentIndex() const { return n; }

private:
    QTextDocumentPrivate *p;
    int n;
    friend class QTextDocumentPrivate;
    friend class QTextLayout;
};

Q_DECLARE_TYPEINFO(QTextBlock, Q_MOVABLE_TYPE);
Q_DECLARE_TYPEINFO(QTextBlock::iterator, Q_MOVABLE_TYPE);


class Q_GUI_EXPORT QTextFragment
{
public:
    inline QTextFragment(const QTextDocumentPrivate *priv, int f, int fe) : p(priv), n(f), ne(fe) {}
    inline QTextFragment() : p(0), n(0), ne(0) {}
    inline QTextFragment(const QTextFragment &o) : p(o.p), n(o.n), ne(o.ne) {}
    inline QTextFragment &operator=(const QTextFragment &o) { p = o.p; n = o.n; ne = o.ne; return *this; }

    inline bool isValid() const { return p && n; }

    inline bool operator==(const QTextFragment &o) const { return p == o.p && n == o.n; }
    inline bool operator!=(const QTextFragment &o) const { return p != o.p || n != o.n; }
    inline bool operator<(const QTextFragment &o) const { return position() < o.position(); }

    int position() const;
    int length() const;
    bool contains(int position) const;

    QTextCharFormat charFormat() const;
    int charFormatIndex() const;
    QString text() const;

private:
    const QTextDocumentPrivate *p;
    int n;
    int ne;
};

Q_DECLARE_TYPEINFO(QTextFragment, Q_MOVABLE_TYPE);

QT_END_NAMESPACE

QT_END_HEADER

#endif // QTEXTOBJECT_H