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39
40#ifndef QTEXTOBJECT_H
41#define QTEXTOBJECT_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtCore/qobject.h>
45#include <QtGui/qtextformat.h>
46#include <QtGui/qtextlayout.h>
47#include <QtGui/qglyphrun.h>
48
49QT_BEGIN_NAMESPACE
50
51
52class QTextObjectPrivate;
53class QTextDocument;
54class QTextDocumentPrivate;
55class QTextCursor;
56class QTextBlock;
57class QTextFragment;
58class QTextList;
59
60class Q_GUI_EXPORT QTextObject : public QObject
61{
62 Q_OBJECT
63
64protected:
65 explicit QTextObject(QTextDocument *doc);
66 ~QTextObject();
67
68 void setFormat(const QTextFormat &format);
69
70public:
71 QTextFormat format() const;
72 int formatIndex() const;
73
74 QTextDocument *document() const;
75
76 int objectIndex() const;
77
78 QTextDocumentPrivate *docHandle() const;
79
80protected:
81 QTextObject(QTextObjectPrivate &p, QTextDocument *doc);
82
83private:
84 Q_DECLARE_PRIVATE(QTextObject)
85 Q_DISABLE_COPY(QTextObject)
86 friend class QTextDocumentPrivate;
87};
88
89class QTextBlockGroupPrivate;
90class Q_GUI_EXPORT QTextBlockGroup : public QTextObject
91{
92 Q_OBJECT
93
94protected:
95 explicit QTextBlockGroup(QTextDocument *doc);
96 ~QTextBlockGroup();
97
98 virtual void blockInserted(const QTextBlock &block);
99 virtual void blockRemoved(const QTextBlock &block);
100 virtual void blockFormatChanged(const QTextBlock &block);
101
102 QList<QTextBlock> blockList() const;
103
104protected:
105 QTextBlockGroup(QTextBlockGroupPrivate &p, QTextDocument *doc);
106private:
107 Q_DECLARE_PRIVATE(QTextBlockGroup)
108 Q_DISABLE_COPY(QTextBlockGroup)
109 friend class QTextDocumentPrivate;
110};
111
112class Q_GUI_EXPORT QTextFrameLayoutData {
113public:
114 virtual ~QTextFrameLayoutData();
115};
116
117class QTextFramePrivate;
118class Q_GUI_EXPORT QTextFrame : public QTextObject
119{
120 Q_OBJECT
121
122public:
123 explicit QTextFrame(QTextDocument *doc);
124 ~QTextFrame();
125
126 inline void setFrameFormat(const QTextFrameFormat &format);
127 QTextFrameFormat frameFormat() const { return QTextObject::format().toFrameFormat(); }
128
129 QTextCursor firstCursorPosition() const;
130 QTextCursor lastCursorPosition() const;
131 int firstPosition() const;
132 int lastPosition() const;
133
134 QTextFrameLayoutData *layoutData() const;
135 void setLayoutData(QTextFrameLayoutData *data);
136
137 QList<QTextFrame *> childFrames() const;
138 QTextFrame *parentFrame() const;
139
140 class Q_GUI_EXPORT iterator {
141 QTextFrame *f;
142 int b;
143 int e;
144 QTextFrame *cf;
145 int cb;
146
147 friend class QTextFrame;
148 friend class QTextTableCell;
149 friend class QTextDocumentLayoutPrivate;
150 iterator(QTextFrame *frame, int block, int begin, int end);
151 public:
152 iterator(); // ### Qt 6: inline
153#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
154 iterator(const iterator &o) noexcept; // = default
155 iterator &operator=(const iterator &o) noexcept; // = default
156 iterator(iterator &&other) noexcept // = default
157 { memcpy(dest: static_cast<void *>(this), src: static_cast<void *>(&other), n: sizeof(iterator)); }
158 iterator &operator=(iterator &&other) noexcept // = default
159 { memcpy(dest: static_cast<void *>(this), src: static_cast<void *>(&other), n: sizeof(iterator)); return *this; }
160#endif
161
162 QTextFrame *parentFrame() const { return f; }
163
164 QTextFrame *currentFrame() const;
165 QTextBlock currentBlock() const;
166
167 bool atEnd() const { return !cf && cb == e; }
168
169 inline bool operator==(const iterator &o) const { return f == o.f && cf == o.cf && cb == o.cb; }
170 inline bool operator!=(const iterator &o) const { return f != o.f || cf != o.cf || cb != o.cb; }
171 iterator &operator++();
172 inline iterator operator++(int) { iterator tmp = *this; operator++(); return tmp; }
173 iterator &operator--();
174 inline iterator operator--(int) { iterator tmp = *this; operator--(); return tmp; }
175 };
176
177 friend class iterator;
178 // more Qt
179 typedef iterator Iterator;
180
181 iterator begin() const;
182 iterator end() const;
183
184protected:
185 QTextFrame(QTextFramePrivate &p, QTextDocument *doc);
186private:
187 friend class QTextDocumentPrivate;
188 Q_DECLARE_PRIVATE(QTextFrame)
189 Q_DISABLE_COPY(QTextFrame)
190};
191Q_DECLARE_TYPEINFO(QTextFrame::iterator, Q_MOVABLE_TYPE);
192
193inline void QTextFrame::setFrameFormat(const QTextFrameFormat &aformat)
194{ QTextObject::setFormat(aformat); }
195
196class Q_GUI_EXPORT QTextBlockUserData {
197public:
198 virtual ~QTextBlockUserData();
199};
200
201class Q_GUI_EXPORT QTextBlock
202{
203 friend class QSyntaxHighlighter;
204public:
205 inline QTextBlock(QTextDocumentPrivate *priv, int b) : p(priv), n(b) {}
206 inline QTextBlock() : p(nullptr), n(0) {}
207 inline QTextBlock(const QTextBlock &o) : p(o.p), n(o.n) {}
208 inline QTextBlock &operator=(const QTextBlock &o) { p = o.p; n = o.n; return *this; }
209
210 bool isValid() const;
211
212 inline bool operator==(const QTextBlock &o) const { return p == o.p && n == o.n; }
213 inline bool operator!=(const QTextBlock &o) const { return p != o.p || n != o.n; }
214 inline bool operator<(const QTextBlock &o) const { return position() < o.position(); }
215
216 int position() const;
217 int length() const;
218 bool contains(int position) const;
219
220 QTextLayout *layout() const;
221 void clearLayout();
222 QTextBlockFormat blockFormat() const;
223 int blockFormatIndex() const;
224 QTextCharFormat charFormat() const;
225 int charFormatIndex() const;
226
227 Qt::LayoutDirection textDirection() const;
228
229 QString text() const;
230
231 QVector<QTextLayout::FormatRange> textFormats() const;
232
233 const QTextDocument *document() const;
234
235 QTextList *textList() const;
236
237 QTextBlockUserData *userData() const;
238 void setUserData(QTextBlockUserData *data);
239
240 int userState() const;
241 void setUserState(int state);
242
243 int revision() const;
244 void setRevision(int rev);
245
246 bool isVisible() const;
247 void setVisible(bool visible);
248
249 int blockNumber() const;
250 int firstLineNumber() const;
251
252 void setLineCount(int count);
253 int lineCount() const;
254
255 class Q_GUI_EXPORT iterator {
256 const QTextDocumentPrivate *p;
257 int b;
258 int e;
259 int n;
260 friend class QTextBlock;
261 iterator(const QTextDocumentPrivate *priv, int begin, int end, int f) : p(priv), b(begin), e(end), n(f) {}
262 public:
263 iterator() : p(nullptr), b(0), e(0), n(0) {}
264#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
265 iterator(const iterator &o) : p(o.p), b(o.b), e(o.e), n(o.n) {}
266 iterator &operator=(const iterator &o) = default;
267#endif
268
269 QTextFragment fragment() const;
270
271 bool atEnd() const { return n == e; }
272
273 inline bool operator==(const iterator &o) const { return p == o.p && n == o.n; }
274 inline bool operator!=(const iterator &o) const { return p != o.p || n != o.n; }
275 iterator &operator++();
276 inline iterator operator++(int) { iterator tmp = *this; operator++(); return tmp; }
277 iterator &operator--();
278 inline iterator operator--(int) { iterator tmp = *this; operator--(); return tmp; }
279 };
280
281 // more Qt
282 typedef iterator Iterator;
283
284 iterator begin() const;
285 iterator end() const;
286
287 QTextBlock next() const;
288 QTextBlock previous() const;
289
290 inline QTextDocumentPrivate *docHandle() const { return p; }
291 inline int fragmentIndex() const { return n; }
292
293private:
294 QTextDocumentPrivate *p;
295 int n;
296 friend class QTextDocumentPrivate;
297 friend class QTextLayout;
298};
299
300Q_DECLARE_TYPEINFO(QTextBlock, Q_MOVABLE_TYPE);
301Q_DECLARE_TYPEINFO(QTextBlock::iterator, Q_MOVABLE_TYPE);
302
303
304class Q_GUI_EXPORT QTextFragment
305{
306public:
307 inline QTextFragment(const QTextDocumentPrivate *priv, int f, int fe) : p(priv), n(f), ne(fe) {}
308 inline QTextFragment() : p(nullptr), n(0), ne(0) {}
309 inline QTextFragment(const QTextFragment &o) : p(o.p), n(o.n), ne(o.ne) {}
310 inline QTextFragment &operator=(const QTextFragment &o) { p = o.p; n = o.n; ne = o.ne; return *this; }
311
312 inline bool isValid() const { return p && n; }
313
314 inline bool operator==(const QTextFragment &o) const { return p == o.p && n == o.n; }
315 inline bool operator!=(const QTextFragment &o) const { return p != o.p || n != o.n; }
316 inline bool operator<(const QTextFragment &o) const { return position() < o.position(); }
317
318 int position() const;
319 int length() const;
320 bool contains(int position) const;
321
322 QTextCharFormat charFormat() const;
323 int charFormatIndex() const;
324 QString text() const;
325
326#if !defined(QT_NO_RAWFONT)
327 QList<QGlyphRun> glyphRuns(int from = -1, int length = -1) const;
328#endif
329
330private:
331 const QTextDocumentPrivate *p;
332 int n;
333 int ne;
334};
335
336Q_DECLARE_TYPEINFO(QTextFragment, Q_MOVABLE_TYPE);
337
338QT_END_NAMESPACE
339
340#endif // QTEXTOBJECT_H
341

source code of qtbase/src/gui/text/qtextobject.h