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25 | ** GNU General Public License Usage | - | ||||||
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36 | ** $QT_END_LICENSE$ | - | ||||||
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38 | ****************************************************************************/ | - | ||||||
39 | - | |||||||
40 | #include "qtextedit_p.h" | - | ||||||
41 | #include "qlineedit.h" | - | ||||||
42 | #include "qtextbrowser.h" | - | ||||||
43 | - | |||||||
44 | #ifndef QT_NO_TEXTEDIT | - | ||||||
45 | #include <qfont.h> | - | ||||||
46 | #include <qpainter.h> | - | ||||||
47 | #include <qevent.h> | - | ||||||
48 | #include <qdebug.h> | - | ||||||
49 | #include <qdrag.h> | - | ||||||
50 | #include <qclipboard.h> | - | ||||||
51 | #include <qmenu.h> | - | ||||||
52 | #include <qstyle.h> | - | ||||||
53 | #include <qtimer.h> | - | ||||||
54 | #ifndef QT_NO_ACCESSIBILITY | - | ||||||
55 | #include <qaccessible.h> | - | ||||||
56 | #endif | - | ||||||
57 | #include "private/qtextdocumentlayout_p.h" | - | ||||||
58 | #include "qtextdocument.h" | - | ||||||
59 | #include "private/qtextdocument_p.h" | - | ||||||
60 | #include "qtextlist.h" | - | ||||||
61 | #include "private/qwidgettextcontrol_p.h" | - | ||||||
62 | - | |||||||
63 | #include <qtextformat.h> | - | ||||||
64 | #include <qdatetime.h> | - | ||||||
65 | #include <qapplication.h> | - | ||||||
66 | #include <limits.h> | - | ||||||
67 | #include <qtexttable.h> | - | ||||||
68 | #include <qvariant.h> | - | ||||||
69 | - | |||||||
70 | #endif | - | ||||||
71 | - | |||||||
72 | QT_BEGIN_NAMESPACE | - | ||||||
73 | - | |||||||
74 | - | |||||||
75 | #ifndef QT_NO_TEXTEDIT | - | ||||||
76 | static inline bool shouldEnableInputMethod(QTextEdit *textedit) | - | ||||||
77 | { | - | ||||||
78 | return !textedit->isReadOnly(); | - | ||||||
79 | } | - | ||||||
80 | - | |||||||
81 | class QTextEditControl : public QWidgetTextControl | - | ||||||
82 | { | - | ||||||
83 | public: | - | ||||||
84 | inline QTextEditControl(QObject *parent) : QWidgetTextControl(parent) {} | - | ||||||
85 | - | |||||||
86 | virtual QMimeData *createMimeDataFromSelection() const Q_DECL_OVERRIDE { | - | ||||||
87 | QTextEdit *ed = qobject_cast<QTextEdit *>(parent()); | - | ||||||
88 | if (!ed) | - | ||||||
89 | return QWidgetTextControl::createMimeDataFromSelection(); | - | ||||||
90 | return ed->createMimeDataFromSelection(); | - | ||||||
91 | } | - | ||||||
92 | virtual bool canInsertFromMimeData(const QMimeData *source) const Q_DECL_OVERRIDE { | - | ||||||
93 | QTextEdit *ed = qobject_cast<QTextEdit *>(parent()); | - | ||||||
94 | if (!ed) | - | ||||||
95 | return QWidgetTextControl::canInsertFromMimeData(source); | - | ||||||
96 | return ed->canInsertFromMimeData(source); | - | ||||||
97 | } | - | ||||||
98 | virtual void insertFromMimeData(const QMimeData *source) Q_DECL_OVERRIDE { | - | ||||||
99 | QTextEdit *ed = qobject_cast<QTextEdit *>(parent()); | - | ||||||
100 | if (!ed) | - | ||||||
101 | QWidgetTextControl::insertFromMimeData(source); | - | ||||||
102 | else | - | ||||||
103 | ed->insertFromMimeData(source); | - | ||||||
104 | } | - | ||||||
105 | }; | - | ||||||
106 | - | |||||||
107 | QTextEditPrivate::QTextEditPrivate() | - | ||||||
108 | : control(0), | - | ||||||
109 | autoFormatting(QTextEdit::AutoNone), tabChangesFocus(false), | - | ||||||
110 | lineWrap(QTextEdit::WidgetWidth), lineWrapColumnOrWidth(0), | - | ||||||
111 | wordWrap(QTextOption::WrapAtWordBoundaryOrAnywhere), clickCausedFocus(0), | - | ||||||
112 | textFormat(Qt::AutoText) | - | ||||||
113 | { | - | ||||||
114 | ignoreAutomaticScrollbarAdjustment = false; | - | ||||||
115 | preferRichText = false; | - | ||||||
116 | showCursorOnInitialShow = true; | - | ||||||
117 | inDrag = false; | - | ||||||
118 | } | - | ||||||
119 | - | |||||||
120 | void QTextEditPrivate::createAutoBulletList() | - | ||||||
121 | { | - | ||||||
122 | QTextCursor cursor = control->textCursor(); | - | ||||||
123 | cursor.beginEditBlock(); | - | ||||||
124 | - | |||||||
125 | QTextBlockFormat blockFmt = cursor.blockFormat(); | - | ||||||
126 | - | |||||||
127 | QTextListFormat listFmt; | - | ||||||
128 | listFmt.setStyle(QTextListFormat::ListDisc); | - | ||||||
129 | listFmt.setIndent(blockFmt.indent() + 1); | - | ||||||
130 | - | |||||||
131 | blockFmt.setIndent(0); | - | ||||||
132 | cursor.setBlockFormat(blockFmt); | - | ||||||
133 | - | |||||||
134 | cursor.createList(listFmt); | - | ||||||
135 | - | |||||||
136 | cursor.endEditBlock(); | - | ||||||
137 | control->setTextCursor(cursor); | - | ||||||
138 | } | - | ||||||
139 | - | |||||||
140 | void QTextEditPrivate::init(const QString &html) | - | ||||||
141 | { | - | ||||||
142 | Q_Q(QTextEdit); | - | ||||||
143 | control = new QTextEditControl(q); | - | ||||||
144 | control->setPalette(q->palette()); | - | ||||||
145 | - | |||||||
146 | QObject::connect(control, SIGNAL(microFocusChanged()), q, SLOT(updateMicroFocus())); | - | ||||||
147 | QObject::connect(control, SIGNAL(documentSizeChanged(QSizeF)), q, SLOT(_q_adjustScrollbars())); | - | ||||||
148 | QObject::connect(control, SIGNAL(updateRequest(QRectF)), q, SLOT(_q_repaintContents(QRectF))); | - | ||||||
149 | QObject::connect(control, SIGNAL(visibilityRequest(QRectF)), q, SLOT(_q_ensureVisible(QRectF))); | - | ||||||
150 | QObject::connect(control, SIGNAL(currentCharFormatChanged(QTextCharFormat)), | - | ||||||
151 | q, SLOT(_q_currentCharFormatChanged(QTextCharFormat))); | - | ||||||
152 | - | |||||||
153 | QObject::connect(control, SIGNAL(textChanged()), q, SIGNAL(textChanged())); | - | ||||||
154 | QObject::connect(control, SIGNAL(undoAvailable(bool)), q, SIGNAL(undoAvailable(bool))); | - | ||||||
155 | QObject::connect(control, SIGNAL(redoAvailable(bool)), q, SIGNAL(redoAvailable(bool))); | - | ||||||
156 | QObject::connect(control, SIGNAL(copyAvailable(bool)), q, SIGNAL(copyAvailable(bool))); | - | ||||||
157 | QObject::connect(control, SIGNAL(selectionChanged()), q, SIGNAL(selectionChanged())); | - | ||||||
158 | QObject::connect(control, SIGNAL(cursorPositionChanged()), q, SLOT(_q_cursorPositionChanged())); | - | ||||||
159 | - | |||||||
160 | QObject::connect(control, SIGNAL(textChanged()), q, SLOT(updateMicroFocus())); | - | ||||||
161 | - | |||||||
162 | QTextDocument *doc = control->document(); | - | ||||||
163 | // set a null page size initially to avoid any relayouting until the textedit | - | ||||||
164 | // is shown. relayoutDocument() will take care of setting the page size to the | - | ||||||
165 | // viewport dimensions later. | - | ||||||
166 | doc->setPageSize(QSize(0, 0)); | - | ||||||
167 | doc->documentLayout()->setPaintDevice(viewport); | - | ||||||
168 | doc->setDefaultFont(q->font()); | - | ||||||
169 | doc->setUndoRedoEnabled(false); // flush undo buffer. | - | ||||||
170 | doc->setUndoRedoEnabled(true); | - | ||||||
171 | - | |||||||
172 | if (!html.isEmpty()) | - | ||||||
173 | control->setHtml(html); | - | ||||||
174 | - | |||||||
175 | hbar->setSingleStep(20); | - | ||||||
176 | vbar->setSingleStep(20); | - | ||||||
177 | - | |||||||
178 | viewport->setBackgroundRole(QPalette::Base); | - | ||||||
179 | q->setAcceptDrops(true); | - | ||||||
180 | q->setFocusPolicy(Qt::StrongFocus); | - | ||||||
181 | q->setAttribute(Qt::WA_KeyCompression); | - | ||||||
182 | q->setAttribute(Qt::WA_InputMethodEnabled); | - | ||||||
183 | q->setInputMethodHints(Qt::ImhMultiLine); | - | ||||||
184 | #ifndef QT_NO_CURSOR | - | ||||||
185 | viewport->setCursor(Qt::IBeamCursor); | - | ||||||
186 | #endif | - | ||||||
187 | #ifdef Q_DEAD_CODE_FROM_QT4_WIN | - | ||||||
188 | setSingleFingerPanEnabled(true); | - | ||||||
189 | #endif | - | ||||||
190 | } | - | ||||||
191 | - | |||||||
192 | void QTextEditPrivate::_q_repaintContents(const QRectF &contentsRect) | - | ||||||
193 | { | - | ||||||
194 | if (!contentsRect.isValid()) { | - | ||||||
195 | viewport->update(); | - | ||||||
196 | return; | - | ||||||
197 | } | - | ||||||
198 | const int xOffset = horizontalOffset(); | - | ||||||
199 | const int yOffset = verticalOffset(); | - | ||||||
200 | const QRectF visibleRect(xOffset, yOffset, viewport->width(), viewport->height()); | - | ||||||
201 | - | |||||||
202 | QRect r = contentsRect.intersected(visibleRect).toAlignedRect(); | - | ||||||
203 | if (r.isEmpty()) | - | ||||||
204 | return; | - | ||||||
205 | - | |||||||
206 | r.translate(-xOffset, -yOffset); | - | ||||||
207 | viewport->update(r); | - | ||||||
208 | } | - | ||||||
209 | - | |||||||
210 | void QTextEditPrivate::_q_cursorPositionChanged() | - | ||||||
211 | { | - | ||||||
212 | Q_Q(QTextEdit); | - | ||||||
213 | emit q->cursorPositionChanged(); | - | ||||||
214 | #ifndef QT_NO_ACCESSIBILITY | - | ||||||
215 | QAccessibleTextCursorEvent event(q, q->textCursor().position()); | - | ||||||
216 | QAccessible::updateAccessibility(&event); | - | ||||||
217 | #endif | - | ||||||
218 | } | - | ||||||
219 | - | |||||||
220 | void QTextEditPrivate::pageUpDown(QTextCursor::MoveOperation op, QTextCursor::MoveMode moveMode) | - | ||||||
221 | { | - | ||||||
222 | QTextCursor cursor = control->textCursor(); | - | ||||||
223 | bool moved = false; | - | ||||||
224 | qreal lastY = control->cursorRect(cursor).top(); | - | ||||||
225 | qreal distance = 0; | - | ||||||
226 | // move using movePosition to keep the cursor's x | - | ||||||
227 | do { | - | ||||||
228 | qreal y = control->cursorRect(cursor).top(); | - | ||||||
229 | distance += qAbs(y - lastY); | - | ||||||
230 | lastY = y; | - | ||||||
231 | moved = cursor.movePosition(op, moveMode); | - | ||||||
232 | } while (moved && distance < viewport->height()); | - | ||||||
233 | - | |||||||
234 | if (moved) { | - | ||||||
235 | if (op == QTextCursor::Up) { | - | ||||||
236 | cursor.movePosition(QTextCursor::Down, moveMode); | - | ||||||
237 | vbar->triggerAction(QAbstractSlider::SliderPageStepSub); | - | ||||||
238 | } else { | - | ||||||
239 | cursor.movePosition(QTextCursor::Up, moveMode); | - | ||||||
240 | vbar->triggerAction(QAbstractSlider::SliderPageStepAdd); | - | ||||||
241 | } | - | ||||||
242 | } | - | ||||||
243 | control->setTextCursor(cursor); | - | ||||||
244 | } | - | ||||||
245 | - | |||||||
246 | #ifndef QT_NO_SCROLLBAR | - | ||||||
247 | static QSize documentSize(QWidgetTextControl *control) | - | ||||||
248 | { | - | ||||||
249 | QTextDocument *doc = control->document(); | - | ||||||
250 | QAbstractTextDocumentLayout *layout = doc->documentLayout(); | - | ||||||
251 | - | |||||||
252 | QSize docSize; | - | ||||||
253 | - | |||||||
254 | if (QTextDocumentLayout *tlayout = qobject_cast<QTextDocumentLayout *>(layout)) { | - | ||||||
255 | docSize = tlayout->dynamicDocumentSize().toSize(); | - | ||||||
256 | int percentageDone = tlayout->layoutStatus(); | - | ||||||
257 | // extrapolate height | - | ||||||
258 | if (percentageDone > 0) | - | ||||||
259 | docSize.setHeight(docSize.height() * 100 / percentageDone); | - | ||||||
260 | } else { | - | ||||||
261 | docSize = layout->documentSize().toSize(); | - | ||||||
262 | } | - | ||||||
263 | - | |||||||
264 | return docSize; | - | ||||||
265 | } | - | ||||||
266 | - | |||||||
267 | void QTextEditPrivate::_q_adjustScrollbars() | - | ||||||
268 | { | - | ||||||
269 | if (ignoreAutomaticScrollbarAdjustment) | - | ||||||
270 | return; | - | ||||||
271 | ignoreAutomaticScrollbarAdjustment = true; // avoid recursion, #106108 | - | ||||||
272 | - | |||||||
273 | QSize viewportSize = viewport->size(); | - | ||||||
274 | QSize docSize = documentSize(control); | - | ||||||
275 | - | |||||||
276 | // due to the recursion guard we have to repeat this step a few times, | - | ||||||
277 | // as adding/removing a scroll bar will cause the document or viewport | - | ||||||
278 | // size to change | - | ||||||
279 | // ideally we should loop until the viewport size and doc size stabilize, | - | ||||||
280 | // but in corner cases they might fluctuate, so we need to limit the | - | ||||||
281 | // number of iterations | - | ||||||
282 | for (int i = 0; i < 4; ++i) { | - | ||||||
283 | hbar->setRange(0, docSize.width() - viewportSize.width()); | - | ||||||
284 | hbar->setPageStep(viewportSize.width()); | - | ||||||
285 | - | |||||||
286 | vbar->setRange(0, docSize.height() - viewportSize.height()); | - | ||||||
287 | vbar->setPageStep(viewportSize.height()); | - | ||||||
288 | - | |||||||
289 | // if we are in left-to-right mode widening the document due to | - | ||||||
290 | // lazy layouting does not require a repaint. If in right-to-left | - | ||||||
291 | // the scroll bar has the value zero and it visually has the maximum | - | ||||||
292 | // value (it is visually at the right), then widening the document | - | ||||||
293 | // keeps it at value zero but visually adjusts it to the new maximum | - | ||||||
294 | // on the right, hence we need an update. | - | ||||||
295 | if (q_func()->isRightToLeft()) | - | ||||||
296 | viewport->update(); | - | ||||||
297 | - | |||||||
298 | _q_showOrHideScrollBars(); | - | ||||||
299 | - | |||||||
300 | const QSize oldViewportSize = viewportSize; | - | ||||||
301 | const QSize oldDocSize = docSize; | - | ||||||
302 | - | |||||||
303 | // make sure the document is layouted if the viewport width changes | - | ||||||
304 | viewportSize = viewport->size(); | - | ||||||
305 | if (viewportSize.width() != oldViewportSize.width()) | - | ||||||
306 | relayoutDocument(); | - | ||||||
307 | - | |||||||
308 | docSize = documentSize(control); | - | ||||||
309 | if (viewportSize == oldViewportSize && docSize == oldDocSize) | - | ||||||
310 | break; | - | ||||||
311 | } | - | ||||||
312 | ignoreAutomaticScrollbarAdjustment = false; | - | ||||||
313 | } | - | ||||||
314 | #endif | - | ||||||
315 | - | |||||||
316 | // rect is in content coordinates | - | ||||||
317 | void QTextEditPrivate::_q_ensureVisible(const QRectF &_rect) | - | ||||||
318 | { | - | ||||||
319 | const QRect rect = _rect.toRect(); | - | ||||||
320 | if ((vbar->isVisible() && vbar->maximum() < rect.bottom()) | - | ||||||
321 | || (hbar->isVisible() && hbar->maximum() < rect.right())) | - | ||||||
322 | _q_adjustScrollbars(); | - | ||||||
323 | const int visibleWidth = viewport->width(); | - | ||||||
324 | const int visibleHeight = viewport->height(); | - | ||||||
325 | const bool rtl = q_func()->isRightToLeft(); | - | ||||||
326 | - | |||||||
327 | if (rect.x() < horizontalOffset()) { | - | ||||||
328 | if (rtl) | - | ||||||
329 | hbar->setValue(hbar->maximum() - rect.x()); | - | ||||||
330 | else | - | ||||||
331 | hbar->setValue(rect.x()); | - | ||||||
332 | } else if (rect.x() + rect.width() > horizontalOffset() + visibleWidth) { | - | ||||||
333 | if (rtl) | - | ||||||
334 | hbar->setValue(hbar->maximum() - (rect.x() + rect.width() - visibleWidth)); | - | ||||||
335 | else | - | ||||||
336 | hbar->setValue(rect.x() + rect.width() - visibleWidth); | - | ||||||
337 | } | - | ||||||
338 | - | |||||||
339 | if (rect.y() < verticalOffset()) | - | ||||||
340 | vbar->setValue(rect.y()); | - | ||||||
341 | else if (rect.y() + rect.height() > verticalOffset() + visibleHeight) | - | ||||||
342 | vbar->setValue(rect.y() + rect.height() - visibleHeight); | - | ||||||
343 | } | - | ||||||
344 | - | |||||||
345 | /*! | - | ||||||
346 | \class QTextEdit | - | ||||||
347 | \brief The QTextEdit class provides a widget that is used to edit and display | - | ||||||
348 | both plain and rich text. | - | ||||||
349 | - | |||||||
350 | \ingroup richtext-processing | - | ||||||
351 | \inmodule QtWidgets | - | ||||||
352 | - | |||||||
353 | \tableofcontents | - | ||||||
354 | - | |||||||
355 | \section1 Introduction and Concepts | - | ||||||
356 | - | |||||||
357 | QTextEdit is an advanced WYSIWYG viewer/editor supporting rich | - | ||||||
358 | text formatting using HTML-style tags. It is optimized to handle | - | ||||||
359 | large documents and to respond quickly to user input. | - | ||||||
360 | - | |||||||
361 | QTextEdit works on paragraphs and characters. A paragraph is a | - | ||||||
362 | formatted string which is word-wrapped to fit into the width of | - | ||||||
363 | the widget. By default when reading plain text, one newline | - | ||||||
364 | signifies a paragraph. A document consists of zero or more | - | ||||||
365 | paragraphs. The words in the paragraph are aligned in accordance | - | ||||||
366 | with the paragraph's alignment. Paragraphs are separated by hard | - | ||||||
367 | line breaks. Each character within a paragraph has its own | - | ||||||
368 | attributes, for example, font and color. | - | ||||||
369 | - | |||||||
370 | QTextEdit can display images, lists and tables. If the text is | - | ||||||
371 | too large to view within the text edit's viewport, scroll bars will | - | ||||||
372 | appear. The text edit can load both plain text and rich text files. | - | ||||||
373 | Rich text is described using a subset of HTML 4 markup, refer to the | - | ||||||
374 | \l {Supported HTML Subset} page for more information. | - | ||||||
375 | - | |||||||
376 | If you just need to display a small piece of rich text use QLabel. | - | ||||||
377 | - | |||||||
378 | The rich text support in Qt is designed to provide a fast, portable and | - | ||||||
379 | efficient way to add reasonable online help facilities to | - | ||||||
380 | applications, and to provide a basis for rich text editors. If | - | ||||||
381 | you find the HTML support insufficient for your needs you may consider | - | ||||||
382 | the use of Qt WebKit, which provides a full-featured web browser | - | ||||||
383 | widget. | - | ||||||
384 | - | |||||||
385 | The shape of the mouse cursor on a QTextEdit is Qt::IBeamCursor by default. | - | ||||||
386 | It can be changed through the viewport()'s cursor property. | - | ||||||
387 | - | |||||||
388 | \section1 Using QTextEdit as a Display Widget | - | ||||||
389 | - | |||||||
390 | QTextEdit can display a large HTML subset, including tables and | - | ||||||
391 | images. | - | ||||||
392 | - | |||||||
393 | The text is set or replaced using setHtml() which deletes any | - | ||||||
394 | existing text and replaces it with the text passed in the | - | ||||||
395 | setHtml() call. If you call setHtml() with legacy HTML, and then | - | ||||||
396 | call toHtml(), the text that is returned may have different markup, | - | ||||||
397 | but will render the same. The entire text can be deleted with clear(). | - | ||||||
398 | - | |||||||
399 | Text itself can be inserted using the QTextCursor class or using the | - | ||||||
400 | convenience functions insertHtml(), insertPlainText(), append() or | - | ||||||
401 | paste(). QTextCursor is also able to insert complex objects like tables | - | ||||||
402 | or lists into the document, and it deals with creating selections | - | ||||||
403 | and applying changes to selected text. | - | ||||||
404 | - | |||||||
405 | By default the text edit wraps words at whitespace to fit within | - | ||||||
406 | the text edit widget. The setLineWrapMode() function is used to | - | ||||||
407 | specify the kind of line wrap you want, or \l NoWrap if you don't | - | ||||||
408 | want any wrapping. Call setLineWrapMode() to set a fixed pixel width | - | ||||||
409 | \l FixedPixelWidth, or character column (e.g. 80 column) \l | - | ||||||
410 | FixedColumnWidth with the pixels or columns specified with | - | ||||||
411 | setLineWrapColumnOrWidth(). If you use word wrap to the widget's width | - | ||||||
412 | \l WidgetWidth, you can specify whether to break on whitespace or | - | ||||||
413 | anywhere with setWordWrapMode(). | - | ||||||
414 | - | |||||||
415 | The find() function can be used to find and select a given string | - | ||||||
416 | within the text. | - | ||||||
417 | - | |||||||
418 | If you want to limit the total number of paragraphs in a QTextEdit, | - | ||||||
419 | as for example it is often useful in a log viewer, then you can use | - | ||||||
420 | QTextDocument's maximumBlockCount property for that. | - | ||||||
421 | - | |||||||
422 | \section2 Read-only Key Bindings | - | ||||||
423 | - | |||||||
424 | When QTextEdit is used read-only the key bindings are limited to | - | ||||||
425 | navigation, and text may only be selected with the mouse: | - | ||||||
426 | \table | - | ||||||
427 | \header \li Keypresses \li Action | - | ||||||
428 | \row \li Up \li Moves one line up. | - | ||||||
429 | \row \li Down \li Moves one line down. | - | ||||||
430 | \row \li Left \li Moves one character to the left. | - | ||||||
431 | \row \li Right \li Moves one character to the right. | - | ||||||
432 | \row \li PageUp \li Moves one (viewport) page up. | - | ||||||
433 | \row \li PageDown \li Moves one (viewport) page down. | - | ||||||
434 | \row \li Home \li Moves to the beginning of the text. | - | ||||||
435 | \row \li End \li Moves to the end of the text. | - | ||||||
436 | \row \li Alt+Wheel | - | ||||||
437 | \li Scrolls the page horizontally (the Wheel is the mouse wheel). | - | ||||||
438 | \row \li Ctrl+Wheel \li Zooms the text. | - | ||||||
439 | \row \li Ctrl+A \li Selects all text. | - | ||||||
440 | \endtable | - | ||||||
441 | - | |||||||
442 | The text edit may be able to provide some meta-information. For | - | ||||||
443 | example, the documentTitle() function will return the text from | - | ||||||
444 | within HTML \c{<title>} tags. | - | ||||||
445 | - | |||||||
446 | \note Zooming into HTML documents only works if the font-size is not set to a fixed size. | - | ||||||
447 | - | |||||||
448 | \section1 Using QTextEdit as an Editor | - | ||||||
449 | - | |||||||
450 | All the information about using QTextEdit as a display widget also | - | ||||||
451 | applies here. | - | ||||||
452 | - | |||||||
453 | The current char format's attributes are set with setFontItalic(), | - | ||||||
454 | setFontWeight(), setFontUnderline(), setFontFamily(), | - | ||||||
455 | setFontPointSize(), setTextColor() and setCurrentFont(). The current | - | ||||||
456 | paragraph's alignment is set with setAlignment(). | - | ||||||
457 | - | |||||||
458 | Selection of text is handled by the QTextCursor class, which provides | - | ||||||
459 | functionality for creating selections, retrieving the text contents or | - | ||||||
460 | deleting selections. You can retrieve the object that corresponds with | - | ||||||
461 | the user-visible cursor using the textCursor() method. If you want to set | - | ||||||
462 | a selection in QTextEdit just create one on a QTextCursor object and | - | ||||||
463 | then make that cursor the visible cursor using setTextCursor(). The selection | - | ||||||
464 | can be copied to the clipboard with copy(), or cut to the clipboard with | - | ||||||
465 | cut(). The entire text can be selected using selectAll(). | - | ||||||
466 | - | |||||||
467 | When the cursor is moved and the underlying formatting attributes change, | - | ||||||
468 | the currentCharFormatChanged() signal is emitted to reflect the new attributes | - | ||||||
469 | at the new cursor position. | - | ||||||
470 | - | |||||||
471 | The textChanged() signal is emitted whenever the text changes (as a result | - | ||||||
472 | of setText() or through the editor itself). | - | ||||||
473 | - | |||||||
474 | QTextEdit holds a QTextDocument object which can be retrieved using the | - | ||||||
475 | document() method. You can also set your own document object using setDocument(). | - | ||||||
476 | - | |||||||
477 | QTextDocument provides an \l {QTextDocument::isModified()}{isModified()} | - | ||||||
478 | function which will return true if the text has been modified since it was | - | ||||||
479 | either loaded or since the last call to setModified with false as argument. | - | ||||||
480 | In addition it provides methods for undo and redo. | - | ||||||
481 | - | |||||||
482 | \section2 Drag and Drop | - | ||||||
483 | - | |||||||
484 | QTextEdit also supports custom drag and drop behavior. By default, | - | ||||||
485 | QTextEdit will insert plain text, HTML and rich text when the user drops | - | ||||||
486 | data of these MIME types onto a document. Reimplement | - | ||||||
487 | canInsertFromMimeData() and insertFromMimeData() to add support for | - | ||||||
488 | additional MIME types. | - | ||||||
489 | - | |||||||
490 | For example, to allow the user to drag and drop an image onto a QTextEdit, | - | ||||||
491 | you could the implement these functions in the following way: | - | ||||||
492 | - | |||||||
493 | \snippet textdocument-imagedrop/textedit.cpp 0 | - | ||||||
494 | - | |||||||
495 | We add support for image MIME types by returning true. For all other | - | ||||||
496 | MIME types, we use the default implementation. | - | ||||||
497 | - | |||||||
498 | \snippet textdocument-imagedrop/textedit.cpp 1 | - | ||||||
499 | - | |||||||
500 | We unpack the image from the QVariant held by the MIME source and insert | - | ||||||
501 | it into the document as a resource. | - | ||||||
502 | - | |||||||
503 | \section2 Editing Key Bindings | - | ||||||
504 | - | |||||||
505 | The list of key bindings which are implemented for editing: | - | ||||||
506 | \table | - | ||||||
507 | \header \li Keypresses \li Action | - | ||||||
508 | \row \li Backspace \li Deletes the character to the left of the cursor. | - | ||||||
509 | \row \li Delete \li Deletes the character to the right of the cursor. | - | ||||||
510 | \row \li Ctrl+C \li Copy the selected text to the clipboard. | - | ||||||
511 | \row \li Ctrl+Insert \li Copy the selected text to the clipboard. | - | ||||||
512 | \row \li Ctrl+K \li Deletes to the end of the line. | - | ||||||
513 | \row \li Ctrl+V \li Pastes the clipboard text into text edit. | - | ||||||
514 | \row \li Shift+Insert \li Pastes the clipboard text into text edit. | - | ||||||
515 | \row \li Ctrl+X \li Deletes the selected text and copies it to the clipboard. | - | ||||||
516 | \row \li Shift+Delete \li Deletes the selected text and copies it to the clipboard. | - | ||||||
517 | \row \li Ctrl+Z \li Undoes the last operation. | - | ||||||
518 | \row \li Ctrl+Y \li Redoes the last operation. | - | ||||||
519 | \row \li Left \li Moves the cursor one character to the left. | - | ||||||
520 | \row \li Ctrl+Left \li Moves the cursor one word to the left. | - | ||||||
521 | \row \li Right \li Moves the cursor one character to the right. | - | ||||||
522 | \row \li Ctrl+Right \li Moves the cursor one word to the right. | - | ||||||
523 | \row \li Up \li Moves the cursor one line up. | - | ||||||
524 | \row \li Down \li Moves the cursor one line down. | - | ||||||
525 | \row \li PageUp \li Moves the cursor one page up. | - | ||||||
526 | \row \li PageDown \li Moves the cursor one page down. | - | ||||||
527 | \row \li Home \li Moves the cursor to the beginning of the line. | - | ||||||
528 | \row \li Ctrl+Home \li Moves the cursor to the beginning of the text. | - | ||||||
529 | \row \li End \li Moves the cursor to the end of the line. | - | ||||||
530 | \row \li Ctrl+End \li Moves the cursor to the end of the text. | - | ||||||
531 | \row \li Alt+Wheel \li Scrolls the page horizontally (the Wheel is the mouse wheel). | - | ||||||
532 | \endtable | - | ||||||
533 | - | |||||||
534 | To select (mark) text hold down the Shift key whilst pressing one | - | ||||||
535 | of the movement keystrokes, for example, \e{Shift+Right} | - | ||||||
536 | will select the character to the right, and \e{Shift+Ctrl+Right} will select the word to the right, etc. | - | ||||||
537 | - | |||||||
538 | \sa QTextDocument, QTextCursor, {Application Example}, | - | ||||||
539 | {Syntax Highlighter Example}, {Rich Text Processing} | - | ||||||
540 | */ | - | ||||||
541 | - | |||||||
542 | /*! | - | ||||||
543 | \property QTextEdit::plainText | - | ||||||
544 | \since 4.3 | - | ||||||
545 | - | |||||||
546 | This property gets and sets the text editor's contents as plain | - | ||||||
547 | text. Previous contents are removed and undo/redo history is reset | - | ||||||
548 | when the property is set. | - | ||||||
549 | - | |||||||
550 | If the text edit has another content type, it will not be replaced | - | ||||||
551 | by plain text if you call toPlainText(). The only exception to this | - | ||||||
552 | is the non-break space, \e{nbsp;}, that will be converted into | - | ||||||
553 | standard space. | - | ||||||
554 | - | |||||||
555 | By default, for an editor with no contents, this property contains | - | ||||||
556 | an empty string. | - | ||||||
557 | - | |||||||
558 | \sa html | - | ||||||
559 | */ | - | ||||||
560 | - | |||||||
561 | /*! | - | ||||||
562 | \property QTextEdit::undoRedoEnabled | - | ||||||
563 | \brief whether undo and redo are enabled | - | ||||||
564 | - | |||||||
565 | Users are only able to undo or redo actions if this property is | - | ||||||
566 | true, and if there is an action that can be undone (or redone). | - | ||||||
567 | */ | - | ||||||
568 | - | |||||||
569 | /*! | - | ||||||
570 | \enum QTextEdit::LineWrapMode | - | ||||||
571 | - | |||||||
572 | \value NoWrap | - | ||||||
573 | \value WidgetWidth | - | ||||||
574 | \value FixedPixelWidth | - | ||||||
575 | \value FixedColumnWidth | - | ||||||
576 | */ | - | ||||||
577 | - | |||||||
578 | /*! | - | ||||||
579 | \enum QTextEdit::AutoFormattingFlag | - | ||||||
580 | - | |||||||
581 | \value AutoNone Don't do any automatic formatting. | - | ||||||
582 | \value AutoBulletList Automatically create bullet lists (e.g. when | - | ||||||
583 | the user enters an asterisk ('*') in the left most column, or | - | ||||||
584 | presses Enter in an existing list item. | - | ||||||
585 | \value AutoAll Apply all automatic formatting. Currently only | - | ||||||
586 | automatic bullet lists are supported. | - | ||||||
587 | */ | - | ||||||
588 | - | |||||||
589 | - | |||||||
590 | /*! | - | ||||||
591 | Constructs an empty QTextEdit with parent \a | - | ||||||
592 | parent. | - | ||||||
593 | */ | - | ||||||
594 | QTextEdit::QTextEdit(QWidget *parent) | - | ||||||
595 | : QAbstractScrollArea(*new QTextEditPrivate, parent) | - | ||||||
596 | { | - | ||||||
597 | Q_D(QTextEdit); | - | ||||||
598 | d->init(); | - | ||||||
599 | } | - | ||||||
600 | - | |||||||
601 | /*! | - | ||||||
602 | \internal | - | ||||||
603 | */ | - | ||||||
604 | QTextEdit::QTextEdit(QTextEditPrivate &dd, QWidget *parent) | - | ||||||
605 | : QAbstractScrollArea(dd, parent) | - | ||||||
606 | { | - | ||||||
607 | Q_D(QTextEdit); | - | ||||||
608 | d->init(); | - | ||||||
609 | } | - | ||||||
610 | - | |||||||
611 | /*! | - | ||||||
612 | Constructs a QTextEdit with parent \a parent. The text edit will display | - | ||||||
613 | the text \a text. The text is interpreted as html. | - | ||||||
614 | */ | - | ||||||
615 | QTextEdit::QTextEdit(const QString &text, QWidget *parent) | - | ||||||
616 | : QAbstractScrollArea(*new QTextEditPrivate, parent) | - | ||||||
617 | { | - | ||||||
618 | Q_D(QTextEdit); | - | ||||||
619 | d->init(text); | - | ||||||
620 | } | - | ||||||
621 | - | |||||||
622 | - | |||||||
623 | - | |||||||
624 | /*! | - | ||||||
625 | Destructor. | - | ||||||
626 | */ | - | ||||||
627 | QTextEdit::~QTextEdit() | - | ||||||
628 | { | - | ||||||
629 | } | - | ||||||
630 | - | |||||||
631 | /*! | - | ||||||
632 | Returns the point size of the font of the current format. | - | ||||||
633 | - | |||||||
634 | \sa setFontFamily(), setCurrentFont(), setFontPointSize() | - | ||||||
635 | */ | - | ||||||
636 | qreal QTextEdit::fontPointSize() const | - | ||||||
637 | { | - | ||||||
638 | Q_D(const QTextEdit); | - | ||||||
639 | return d->control->textCursor().charFormat().fontPointSize(); | - | ||||||
640 | } | - | ||||||
641 | - | |||||||
642 | /*! | - | ||||||
643 | Returns the font family of the current format. | - | ||||||
644 | - | |||||||
645 | \sa setFontFamily(), setCurrentFont(), setFontPointSize() | - | ||||||
646 | */ | - | ||||||
647 | QString QTextEdit::fontFamily() const | - | ||||||
648 | { | - | ||||||
649 | Q_D(const QTextEdit); | - | ||||||
650 | return d->control->textCursor().charFormat().fontFamily(); | - | ||||||
651 | } | - | ||||||
652 | - | |||||||
653 | /*! | - | ||||||
654 | Returns the font weight of the current format. | - | ||||||
655 | - | |||||||
656 | \sa setFontWeight(), setCurrentFont(), setFontPointSize(), QFont::Weight | - | ||||||
657 | */ | - | ||||||
658 | int QTextEdit::fontWeight() const | - | ||||||
659 | { | - | ||||||
660 | Q_D(const QTextEdit); | - | ||||||
661 | return d->control->textCursor().charFormat().fontWeight(); | - | ||||||
662 | } | - | ||||||
663 | - | |||||||
664 | /*! | - | ||||||
665 | Returns \c true if the font of the current format is underlined; otherwise returns | - | ||||||
666 | false. | - | ||||||
667 | - | |||||||
668 | \sa setFontUnderline() | - | ||||||
669 | */ | - | ||||||
670 | bool QTextEdit::fontUnderline() const | - | ||||||
671 | { | - | ||||||
672 | Q_D(const QTextEdit); | - | ||||||
673 | return d->control->textCursor().charFormat().fontUnderline(); | - | ||||||
674 | } | - | ||||||
675 | - | |||||||
676 | /*! | - | ||||||
677 | Returns \c true if the font of the current format is italic; otherwise returns | - | ||||||
678 | false. | - | ||||||
679 | - | |||||||
680 | \sa setFontItalic() | - | ||||||
681 | */ | - | ||||||
682 | bool QTextEdit::fontItalic() const | - | ||||||
683 | { | - | ||||||
684 | Q_D(const QTextEdit); | - | ||||||
685 | return d->control->textCursor().charFormat().fontItalic(); | - | ||||||
686 | } | - | ||||||
687 | - | |||||||
688 | /*! | - | ||||||
689 | Returns the text color of the current format. | - | ||||||
690 | - | |||||||
691 | \sa setTextColor() | - | ||||||
692 | */ | - | ||||||
693 | QColor QTextEdit::textColor() const | - | ||||||
694 | { | - | ||||||
695 | Q_D(const QTextEdit); | - | ||||||
696 | return d->control->textCursor().charFormat().foreground().color(); | - | ||||||
697 | } | - | ||||||
698 | - | |||||||
699 | /*! | - | ||||||
700 | \since 4.4 | - | ||||||
701 | - | |||||||
702 | Returns the text background color of the current format. | - | ||||||
703 | - | |||||||
704 | \sa setTextBackgroundColor() | - | ||||||
705 | */ | - | ||||||
706 | QColor QTextEdit::textBackgroundColor() const | - | ||||||
707 | { | - | ||||||
708 | Q_D(const QTextEdit); | - | ||||||
709 | return d->control->textCursor().charFormat().background().color(); | - | ||||||
710 | } | - | ||||||
711 | - | |||||||
712 | /*! | - | ||||||
713 | Returns the font of the current format. | - | ||||||
714 | - | |||||||
715 | \sa setCurrentFont(), setFontFamily(), setFontPointSize() | - | ||||||
716 | */ | - | ||||||
717 | QFont QTextEdit::currentFont() const | - | ||||||
718 | { | - | ||||||
719 | Q_D(const QTextEdit); | - | ||||||
720 | return d->control->textCursor().charFormat().font(); | - | ||||||
721 | } | - | ||||||
722 | - | |||||||
723 | /*! | - | ||||||
724 | Sets the alignment of the current paragraph to \a a. Valid | - | ||||||
725 | alignments are Qt::AlignLeft, Qt::AlignRight, | - | ||||||
726 | Qt::AlignJustify and Qt::AlignCenter (which centers | - | ||||||
727 | horizontally). | - | ||||||
728 | */ | - | ||||||
729 | void QTextEdit::setAlignment(Qt::Alignment a) | - | ||||||
730 | { | - | ||||||
731 | Q_D(QTextEdit); | - | ||||||
732 | QTextBlockFormat fmt; | - | ||||||
733 | fmt.setAlignment(a); | - | ||||||
734 | QTextCursor cursor = d->control->textCursor(); | - | ||||||
735 | cursor.mergeBlockFormat(fmt); | - | ||||||
736 | d->control->setTextCursor(cursor); | - | ||||||
737 | } | - | ||||||
738 | - | |||||||
739 | /*! | - | ||||||
740 | Returns the alignment of the current paragraph. | - | ||||||
741 | - | |||||||
742 | \sa setAlignment() | - | ||||||
743 | */ | - | ||||||
744 | Qt::Alignment QTextEdit::alignment() const | - | ||||||
745 | { | - | ||||||
746 | Q_D(const QTextEdit); | - | ||||||
747 | return d->control->textCursor().blockFormat().alignment(); | - | ||||||
748 | } | - | ||||||
749 | - | |||||||
750 | /*! | - | ||||||
751 | \property QTextEdit::document | - | ||||||
752 | \brief the underlying document of the text editor. | - | ||||||
753 | - | |||||||
754 | \note The editor \e{does not take ownership of the document} unless it | - | ||||||
755 | is the document's parent object. The parent object of the provided document | - | ||||||
756 | remains the owner of the object. If the previously assigned document is a | - | ||||||
757 | child of the editor then it will be deleted. | - | ||||||
758 | */ | - | ||||||
759 | void QTextEdit::setDocument(QTextDocument *document) | - | ||||||
760 | { | - | ||||||
761 | Q_D(QTextEdit); | - | ||||||
762 | d->control->setDocument(document); | - | ||||||
763 | d->updateDefaultTextOption(); | - | ||||||
764 | d->relayoutDocument(); | - | ||||||
765 | } | - | ||||||
766 | - | |||||||
767 | QTextDocument *QTextEdit::document() const | - | ||||||
768 | { | - | ||||||
769 | Q_D(const QTextEdit); | - | ||||||
770 | return d->control->document(); | - | ||||||
771 | } | - | ||||||
772 | - | |||||||
773 | /*! | - | ||||||
774 | \since 5.2 | - | ||||||
775 | - | |||||||
776 | \property QTextEdit::placeholderText | - | ||||||
777 | \brief the editor placeholder text | - | ||||||
778 | - | |||||||
779 | Setting this property makes the editor display a grayed-out | - | ||||||
780 | placeholder text as long as the document() is empty. | - | ||||||
781 | - | |||||||
782 | By default, this property contains an empty string. | - | ||||||
783 | - | |||||||
784 | \sa document() | - | ||||||
785 | */ | - | ||||||
786 | QString QTextEdit::placeholderText() const | - | ||||||
787 | { | - | ||||||
788 | Q_D(const QTextEdit); | - | ||||||
789 | return d->placeholderText; | - | ||||||
790 | } | - | ||||||
791 | - | |||||||
792 | void QTextEdit::setPlaceholderText(const QString &placeholderText) | - | ||||||
793 | { | - | ||||||
794 | Q_D(QTextEdit); | - | ||||||
795 | if (d->placeholderText != placeholderText) { | - | ||||||
796 | d->placeholderText = placeholderText; | - | ||||||
797 | if (d->control->document()->isEmpty()) | - | ||||||
798 | d->viewport->update(); | - | ||||||
799 | } | - | ||||||
800 | } | - | ||||||
801 | - | |||||||
802 | /*! | - | ||||||
803 | Sets the visible \a cursor. | - | ||||||
804 | */ | - | ||||||
805 | void QTextEdit::setTextCursor(const QTextCursor &cursor) | - | ||||||
806 | { | - | ||||||
807 | doSetTextCursor(cursor); | - | ||||||
808 | } | - | ||||||
809 | - | |||||||
810 | /*! | - | ||||||
811 | \internal | - | ||||||
812 | - | |||||||
813 | This provides a hook for subclasses to intercept cursor changes. | - | ||||||
814 | */ | - | ||||||
815 | - | |||||||
816 | void QTextEdit::doSetTextCursor(const QTextCursor &cursor) | - | ||||||
817 | { | - | ||||||
818 | Q_D(QTextEdit); | - | ||||||
819 | d->control->setTextCursor(cursor); | - | ||||||
820 | } | - | ||||||
821 | - | |||||||
822 | /*! | - | ||||||
823 | Returns a copy of the QTextCursor that represents the currently visible cursor. | - | ||||||
824 | Note that changes on the returned cursor do not affect QTextEdit's cursor; use | - | ||||||
825 | setTextCursor() to update the visible cursor. | - | ||||||
826 | */ | - | ||||||
827 | QTextCursor QTextEdit::textCursor() const | - | ||||||
828 | { | - | ||||||
829 | Q_D(const QTextEdit); | - | ||||||
830 | return d->control->textCursor(); | - | ||||||
831 | } | - | ||||||
832 | - | |||||||
833 | /*! | - | ||||||
834 | Sets the font family of the current format to \a fontFamily. | - | ||||||
835 | - | |||||||
836 | \sa fontFamily(), setCurrentFont() | - | ||||||
837 | */ | - | ||||||
838 | void QTextEdit::setFontFamily(const QString &fontFamily) | - | ||||||
839 | { | - | ||||||
840 | QTextCharFormat fmt; | - | ||||||
841 | fmt.setFontFamily(fontFamily); | - | ||||||
842 | mergeCurrentCharFormat(fmt); | - | ||||||
843 | } | - | ||||||
844 | - | |||||||
845 | /*! | - | ||||||
846 | Sets the point size of the current format to \a s. | - | ||||||
847 | - | |||||||
848 | Note that if \a s is zero or negative, the behavior of this | - | ||||||
849 | function is not defined. | - | ||||||
850 | - | |||||||
851 | \sa fontPointSize(), setCurrentFont(), setFontFamily() | - | ||||||
852 | */ | - | ||||||
853 | void QTextEdit::setFontPointSize(qreal s) | - | ||||||
854 | { | - | ||||||
855 | QTextCharFormat fmt; | - | ||||||
856 | fmt.setFontPointSize(s); | - | ||||||
857 | mergeCurrentCharFormat(fmt); | - | ||||||
858 | } | - | ||||||
859 | - | |||||||
860 | /*! | - | ||||||
861 | \fn void QTextEdit::setFontWeight(int weight) | - | ||||||
862 | - | |||||||
863 | Sets the font weight of the current format to the given \a weight, | - | ||||||
864 | where the value used is in the range defined by the QFont::Weight | - | ||||||
865 | enum. | - | ||||||
866 | - | |||||||
867 | \sa fontWeight(), setCurrentFont(), setFontFamily() | - | ||||||
868 | */ | - | ||||||
869 | void QTextEdit::setFontWeight(int w) | - | ||||||
870 | { | - | ||||||
871 | QTextCharFormat fmt; | - | ||||||
872 | fmt.setFontWeight(w); | - | ||||||
873 | mergeCurrentCharFormat(fmt); | - | ||||||
874 | } | - | ||||||
875 | - | |||||||
876 | /*! | - | ||||||
877 | If \a underline is true, sets the current format to underline; | - | ||||||
878 | otherwise sets the current format to non-underline. | - | ||||||
879 | - | |||||||
880 | \sa fontUnderline() | - | ||||||
881 | */ | - | ||||||
882 | void QTextEdit::setFontUnderline(bool underline) | - | ||||||
883 | { | - | ||||||
884 | QTextCharFormat fmt; | - | ||||||
885 | fmt.setFontUnderline(underline); | - | ||||||
886 | mergeCurrentCharFormat(fmt); | - | ||||||
887 | } | - | ||||||
888 | - | |||||||
889 | /*! | - | ||||||
890 | If \a italic is true, sets the current format to italic; | - | ||||||
891 | otherwise sets the current format to non-italic. | - | ||||||
892 | - | |||||||
893 | \sa fontItalic() | - | ||||||
894 | */ | - | ||||||
895 | void QTextEdit::setFontItalic(bool italic) | - | ||||||
896 | { | - | ||||||
897 | QTextCharFormat fmt; | - | ||||||
898 | fmt.setFontItalic(italic); | - | ||||||
899 | mergeCurrentCharFormat(fmt); | - | ||||||
900 | } | - | ||||||
901 | - | |||||||
902 | /*! | - | ||||||
903 | Sets the text color of the current format to \a c. | - | ||||||
904 | - | |||||||
905 | \sa textColor() | - | ||||||
906 | */ | - | ||||||
907 | void QTextEdit::setTextColor(const QColor &c) | - | ||||||
908 | { | - | ||||||
909 | QTextCharFormat fmt; | - | ||||||
910 | fmt.setForeground(QBrush(c)); | - | ||||||
911 | mergeCurrentCharFormat(fmt); | - | ||||||
912 | } | - | ||||||
913 | - | |||||||
914 | /*! | - | ||||||
915 | \since 4.4 | - | ||||||
916 | - | |||||||
917 | Sets the text background color of the current format to \a c. | - | ||||||
918 | - | |||||||
919 | \sa textBackgroundColor() | - | ||||||
920 | */ | - | ||||||
921 | void QTextEdit::setTextBackgroundColor(const QColor &c) | - | ||||||
922 | { | - | ||||||
923 | QTextCharFormat fmt; | - | ||||||
924 | fmt.setBackground(QBrush(c)); | - | ||||||
925 | mergeCurrentCharFormat(fmt); | - | ||||||
926 | } | - | ||||||
927 | - | |||||||
928 | /*! | - | ||||||
929 | Sets the font of the current format to \a f. | - | ||||||
930 | - | |||||||
931 | \sa currentFont(), setFontPointSize(), setFontFamily() | - | ||||||
932 | */ | - | ||||||
933 | void QTextEdit::setCurrentFont(const QFont &f) | - | ||||||
934 | { | - | ||||||
935 | QTextCharFormat fmt; | - | ||||||
936 | fmt.setFont(f); | - | ||||||
937 | mergeCurrentCharFormat(fmt); | - | ||||||
938 | } | - | ||||||
939 | - | |||||||
940 | /*! | - | ||||||
941 | \since 4.2 | - | ||||||
942 | - | |||||||
943 | Undoes the last operation. | - | ||||||
944 | - | |||||||
945 | If there is no operation to undo, i.e. there is no undo step in | - | ||||||
946 | the undo/redo history, nothing happens. | - | ||||||
947 | - | |||||||
948 | \sa redo() | - | ||||||
949 | */ | - | ||||||
950 | void QTextEdit::undo() | - | ||||||
951 | { | - | ||||||
952 | Q_D(QTextEdit); | - | ||||||
953 | d->control->undo(); | - | ||||||
954 | } | - | ||||||
955 | - | |||||||
956 | void QTextEdit::redo() | - | ||||||
957 | { | - | ||||||
958 | Q_D(QTextEdit); | - | ||||||
959 | d->control->redo(); | - | ||||||
960 | } | - | ||||||
961 | - | |||||||
962 | /*! | - | ||||||
963 | \fn void QTextEdit::redo() | - | ||||||
964 | \since 4.2 | - | ||||||
965 | - | |||||||
966 | Redoes the last operation. | - | ||||||
967 | - | |||||||
968 | If there is no operation to redo, i.e. there is no redo step in | - | ||||||
969 | the undo/redo history, nothing happens. | - | ||||||
970 | - | |||||||
971 | \sa undo() | - | ||||||
972 | */ | - | ||||||
973 | - | |||||||
974 | #ifndef QT_NO_CLIPBOARD | - | ||||||
975 | /*! | - | ||||||
976 | Copies the selected text to the clipboard and deletes it from | - | ||||||
977 | the text edit. | - | ||||||
978 | - | |||||||
979 | If there is no selected text nothing happens. | - | ||||||
980 | - | |||||||
981 | \sa copy(), paste() | - | ||||||
982 | */ | - | ||||||
983 | - | |||||||
984 | void QTextEdit::cut() | - | ||||||
985 | { | - | ||||||
986 | Q_D(QTextEdit); | - | ||||||
987 | d->control->cut(); | - | ||||||
988 | } | - | ||||||
989 | - | |||||||
990 | /*! | - | ||||||
991 | Copies any selected text to the clipboard. | - | ||||||
992 | - | |||||||
993 | \sa copyAvailable() | - | ||||||
994 | */ | - | ||||||
995 | - | |||||||
996 | void QTextEdit::copy() | - | ||||||
997 | { | - | ||||||
998 | Q_D(QTextEdit); | - | ||||||
999 | d->control->copy(); | - | ||||||
1000 | } | - | ||||||
1001 | - | |||||||
1002 | /*! | - | ||||||
1003 | Pastes the text from the clipboard into the text edit at the | - | ||||||
1004 | current cursor position. | - | ||||||
1005 | - | |||||||
1006 | If there is no text in the clipboard nothing happens. | - | ||||||
1007 | - | |||||||
1008 | To change the behavior of this function, i.e. to modify what | - | ||||||
1009 | QTextEdit can paste and how it is being pasted, reimplement the | - | ||||||
1010 | virtual canInsertFromMimeData() and insertFromMimeData() | - | ||||||
1011 | functions. | - | ||||||
1012 | - | |||||||
1013 | \sa cut(), copy() | - | ||||||
1014 | */ | - | ||||||
1015 | - | |||||||
1016 | void QTextEdit::paste() | - | ||||||
1017 | { | - | ||||||
1018 | Q_D(QTextEdit); | - | ||||||
1019 | d->control->paste(); | - | ||||||
1020 | } | - | ||||||
1021 | #endif | - | ||||||
1022 | - | |||||||
1023 | /*! | - | ||||||
1024 | Deletes all the text in the text edit. | - | ||||||
1025 | - | |||||||
1026 | Note that the undo/redo history is cleared by this function. | - | ||||||
1027 | - | |||||||
1028 | \sa cut(), setPlainText(), setHtml() | - | ||||||
1029 | */ | - | ||||||
1030 | void QTextEdit::clear() | - | ||||||
1031 | { | - | ||||||
1032 | Q_D(QTextEdit); | - | ||||||
1033 | // clears and sets empty content | - | ||||||
1034 | d->control->clear(); | - | ||||||
1035 | } | - | ||||||
1036 | - | |||||||
1037 | - | |||||||
1038 | /*! | - | ||||||
1039 | Selects all text. | - | ||||||
1040 | - | |||||||
1041 | \sa copy(), cut(), textCursor() | - | ||||||
1042 | */ | - | ||||||
1043 | void QTextEdit::selectAll() | - | ||||||
1044 | { | - | ||||||
1045 | Q_D(QTextEdit); | - | ||||||
1046 | d->control->selectAll(); | - | ||||||
1047 | } | - | ||||||
1048 | - | |||||||
1049 | /*! \internal | - | ||||||
1050 | */ | - | ||||||
1051 | bool QTextEdit::event(QEvent *e) | - | ||||||
1052 | { | - | ||||||
1053 | Q_D(QTextEdit); | - | ||||||
1054 | #ifndef QT_NO_CONTEXTMENU | - | ||||||
1055 | if (e->type() == QEvent::ContextMenu
| 0 | ||||||
1056 | && static_cast<QContextMenuEvent *>(e)->reason() == QContextMenuEvent::Keyboard) {
| 0 | ||||||
1057 | Q_D(QTextEdit); | - | ||||||
1058 | ensureCursorVisible(); | - | ||||||
1059 | const QPoint cursorPos = cursorRect().center(); | - | ||||||
1060 | QContextMenuEvent ce(QContextMenuEvent::Keyboard, cursorPos, d->viewport->mapToGlobal(cursorPos)); | - | ||||||
1061 | ce.setAccepted(e->isAccepted()); | - | ||||||
1062 | const bool result = QAbstractScrollArea::event(&ce); | - | ||||||
1063 | e->setAccepted(ce.isAccepted()); | - | ||||||
1064 | return result; never executed: return result; | 0 | ||||||
1065 | } else if (e->type() == QEvent::ShortcutOverride
| 0 | ||||||
1066 | || e->type() == QEvent::ToolTip) {
| 0 | ||||||
1067 | d->sendControlEvent(e); | - | ||||||
1068 | } never executed: end of block | 0 | ||||||
1069 | #else | - | ||||||
1070 | Q_UNUSED(d) | - | ||||||
1071 | #endif // QT_NO_CONTEXTMENU | - | ||||||
1072 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1073 | if (e->type() == QEvent::EnterEditFocus || e->type() == QEvent::LeaveEditFocus) { | - | ||||||
1074 | if (QApplication::keypadNavigationEnabled()) | - | ||||||
1075 | d->sendControlEvent(e); | - | ||||||
1076 | } | - | ||||||
1077 | #endif | - | ||||||
1078 | return QAbstractScrollArea::event(e); never executed: return QAbstractScrollArea::event(e); | 0 | ||||||
1079 | } | - | ||||||
1080 | - | |||||||
1081 | /*! \internal | - | ||||||
1082 | */ | - | ||||||
1083 | - | |||||||
1084 | void QTextEdit::timerEvent(QTimerEvent *e) | - | ||||||
1085 | { | - | ||||||
1086 | Q_D(QTextEdit); | - | ||||||
1087 | if (e->timerId() == d->autoScrollTimer.timerId()) { | - | ||||||
1088 | QRect visible = d->viewport->rect(); | - | ||||||
1089 | QPoint pos; | - | ||||||
1090 | if (d->inDrag) { | - | ||||||
1091 | pos = d->autoScrollDragPos; | - | ||||||
1092 | visible.adjust(qMin(visible.width()/3,20), qMin(visible.height()/3,20), | - | ||||||
1093 | -qMin(visible.width()/3,20), -qMin(visible.height()/3,20)); | - | ||||||
1094 | } else { | - | ||||||
1095 | const QPoint globalPos = QCursor::pos(); | - | ||||||
1096 | pos = d->viewport->mapFromGlobal(globalPos); | - | ||||||
1097 | QMouseEvent ev(QEvent::MouseMove, pos, mapTo(topLevelWidget(), pos), globalPos, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier); | - | ||||||
1098 | mouseMoveEvent(&ev); | - | ||||||
1099 | } | - | ||||||
1100 | int deltaY = qMax(pos.y() - visible.top(), visible.bottom() - pos.y()) - visible.height(); | - | ||||||
1101 | int deltaX = qMax(pos.x() - visible.left(), visible.right() - pos.x()) - visible.width(); | - | ||||||
1102 | int delta = qMax(deltaX, deltaY); | - | ||||||
1103 | if (delta >= 0) { | - | ||||||
1104 | if (delta < 7) | - | ||||||
1105 | delta = 7; | - | ||||||
1106 | int timeout = 4900 / (delta * delta); | - | ||||||
1107 | d->autoScrollTimer.start(timeout, this); | - | ||||||
1108 | - | |||||||
1109 | if (deltaY > 0) | - | ||||||
1110 | d->vbar->triggerAction(pos.y() < visible.center().y() ? | - | ||||||
1111 | QAbstractSlider::SliderSingleStepSub | - | ||||||
1112 | : QAbstractSlider::SliderSingleStepAdd); | - | ||||||
1113 | if (deltaX > 0) | - | ||||||
1114 | d->hbar->triggerAction(pos.x() < visible.center().x() ? | - | ||||||
1115 | QAbstractSlider::SliderSingleStepSub | - | ||||||
1116 | : QAbstractSlider::SliderSingleStepAdd); | - | ||||||
1117 | } | - | ||||||
1118 | } | - | ||||||
1119 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1120 | else if (e->timerId() == d->deleteAllTimer.timerId()) { | - | ||||||
1121 | d->deleteAllTimer.stop(); | - | ||||||
1122 | clear(); | - | ||||||
1123 | } | - | ||||||
1124 | #endif | - | ||||||
1125 | } | - | ||||||
1126 | - | |||||||
1127 | /*! | - | ||||||
1128 | Changes the text of the text edit to the string \a text. | - | ||||||
1129 | Any previous text is removed. | - | ||||||
1130 | - | |||||||
1131 | \a text is interpreted as plain text. | - | ||||||
1132 | - | |||||||
1133 | Note that the undo/redo history is cleared by this function. | - | ||||||
1134 | - | |||||||
1135 | \sa toPlainText() | - | ||||||
1136 | */ | - | ||||||
1137 | - | |||||||
1138 | void QTextEdit::setPlainText(const QString &text) | - | ||||||
1139 | { | - | ||||||
1140 | Q_D(QTextEdit); | - | ||||||
1141 | d->control->setPlainText(text); | - | ||||||
1142 | d->preferRichText = false; | - | ||||||
1143 | } | - | ||||||
1144 | - | |||||||
1145 | /*! | - | ||||||
1146 | QString QTextEdit::toPlainText() const | - | ||||||
1147 | - | |||||||
1148 | Returns the text of the text edit as plain text. | - | ||||||
1149 | - | |||||||
1150 | \sa QTextEdit::setPlainText() | - | ||||||
1151 | */ | - | ||||||
1152 | QString QTextEdit::toPlainText() const | - | ||||||
1153 | { | - | ||||||
1154 | Q_D(const QTextEdit); | - | ||||||
1155 | return d->control->toPlainText(); | - | ||||||
1156 | } | - | ||||||
1157 | - | |||||||
1158 | /*! | - | ||||||
1159 | \property QTextEdit::html | - | ||||||
1160 | - | |||||||
1161 | This property provides an HTML interface to the text of the text edit. | - | ||||||
1162 | - | |||||||
1163 | toHtml() returns the text of the text edit as html. | - | ||||||
1164 | - | |||||||
1165 | setHtml() changes the text of the text edit. Any previous text is | - | ||||||
1166 | removed and the undo/redo history is cleared. The input text is | - | ||||||
1167 | interpreted as rich text in html format. | - | ||||||
1168 | - | |||||||
1169 | \note It is the responsibility of the caller to make sure that the | - | ||||||
1170 | text is correctly decoded when a QString containing HTML is created | - | ||||||
1171 | and passed to setHtml(). | - | ||||||
1172 | - | |||||||
1173 | By default, for a newly-created, empty document, this property contains | - | ||||||
1174 | text to describe an HTML 4.0 document with no body text. | - | ||||||
1175 | - | |||||||
1176 | \sa {Supported HTML Subset}, plainText | - | ||||||
1177 | */ | - | ||||||
1178 | - | |||||||
1179 | #ifndef QT_NO_TEXTHTMLPARSER | - | ||||||
1180 | void QTextEdit::setHtml(const QString &text) | - | ||||||
1181 | { | - | ||||||
1182 | Q_D(QTextEdit); | - | ||||||
1183 | d->control->setHtml(text); | - | ||||||
1184 | d->preferRichText = true; | - | ||||||
1185 | } | - | ||||||
1186 | - | |||||||
1187 | QString QTextEdit::toHtml() const | - | ||||||
1188 | { | - | ||||||
1189 | Q_D(const QTextEdit); | - | ||||||
1190 | return d->control->toHtml(); | - | ||||||
1191 | } | - | ||||||
1192 | #endif | - | ||||||
1193 | - | |||||||
1194 | - | |||||||
1195 | /*! \reimp | - | ||||||
1196 | */ | - | ||||||
1197 | void QTextEdit::keyPressEvent(QKeyEvent *e) | - | ||||||
1198 | { | - | ||||||
1199 | Q_D(QTextEdit); | - | ||||||
1200 | - | |||||||
1201 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1202 | switch (e->key()) { | - | ||||||
1203 | case Qt::Key_Select: | - | ||||||
1204 | if (QApplication::keypadNavigationEnabled()) { | - | ||||||
1205 | // code assumes linksaccessible + editable isn't meaningful | - | ||||||
1206 | if (d->control->textInteractionFlags() & Qt::TextEditable) { | - | ||||||
1207 | setEditFocus(!hasEditFocus()); | - | ||||||
1208 | } else { | - | ||||||
1209 | if (!hasEditFocus()) | - | ||||||
1210 | setEditFocus(true); | - | ||||||
1211 | else { | - | ||||||
1212 | QTextCursor cursor = d->control->textCursor(); | - | ||||||
1213 | QTextCharFormat charFmt = cursor.charFormat(); | - | ||||||
1214 | if (!(d->control->textInteractionFlags() & Qt::LinksAccessibleByKeyboard) | - | ||||||
1215 | || !cursor.hasSelection() || charFmt.anchorHref().isEmpty()) { | - | ||||||
1216 | e->accept(); | - | ||||||
1217 | return; | - | ||||||
1218 | } | - | ||||||
1219 | } | - | ||||||
1220 | } | - | ||||||
1221 | } | - | ||||||
1222 | break; | - | ||||||
1223 | case Qt::Key_Back: | - | ||||||
1224 | case Qt::Key_No: | - | ||||||
1225 | if (!QApplication::keypadNavigationEnabled() | - | ||||||
1226 | || (QApplication::keypadNavigationEnabled() && !hasEditFocus())) { | - | ||||||
1227 | e->ignore(); | - | ||||||
1228 | return; | - | ||||||
1229 | } | - | ||||||
1230 | break; | - | ||||||
1231 | default: | - | ||||||
1232 | if (QApplication::keypadNavigationEnabled()) { | - | ||||||
1233 | if (!hasEditFocus() && !(e->modifiers() & Qt::ControlModifier)) { | - | ||||||
1234 | if (e->text()[0].isPrint()) | - | ||||||
1235 | setEditFocus(true); | - | ||||||
1236 | else { | - | ||||||
1237 | e->ignore(); | - | ||||||
1238 | return; | - | ||||||
1239 | } | - | ||||||
1240 | } | - | ||||||
1241 | } | - | ||||||
1242 | break; | - | ||||||
1243 | } | - | ||||||
1244 | #endif | - | ||||||
1245 | #ifndef QT_NO_SHORTCUT | - | ||||||
1246 | - | |||||||
1247 | Qt::TextInteractionFlags tif = d->control->textInteractionFlags(); | - | ||||||
1248 | - | |||||||
1249 | if (tif & Qt::TextSelectableByKeyboard){ | - | ||||||
1250 | if (e == QKeySequence::SelectPreviousPage) { | - | ||||||
1251 | e->accept(); | - | ||||||
1252 | d->pageUpDown(QTextCursor::Up, QTextCursor::KeepAnchor); | - | ||||||
1253 | return; | - | ||||||
1254 | } else if (e ==QKeySequence::SelectNextPage) { | - | ||||||
1255 | e->accept(); | - | ||||||
1256 | d->pageUpDown(QTextCursor::Down, QTextCursor::KeepAnchor); | - | ||||||
1257 | return; | - | ||||||
1258 | } | - | ||||||
1259 | } | - | ||||||
1260 | if (tif & (Qt::TextSelectableByKeyboard | Qt::TextEditable)) { | - | ||||||
1261 | if (e == QKeySequence::MoveToPreviousPage) { | - | ||||||
1262 | e->accept(); | - | ||||||
1263 | d->pageUpDown(QTextCursor::Up, QTextCursor::MoveAnchor); | - | ||||||
1264 | return; | - | ||||||
1265 | } else if (e == QKeySequence::MoveToNextPage) { | - | ||||||
1266 | e->accept(); | - | ||||||
1267 | d->pageUpDown(QTextCursor::Down, QTextCursor::MoveAnchor); | - | ||||||
1268 | return; | - | ||||||
1269 | } | - | ||||||
1270 | } | - | ||||||
1271 | - | |||||||
1272 | if (!(tif & Qt::TextEditable)) { | - | ||||||
1273 | switch (e->key()) { | - | ||||||
1274 | case Qt::Key_Space: | - | ||||||
1275 | e->accept(); | - | ||||||
1276 | if (e->modifiers() & Qt::ShiftModifier) | - | ||||||
1277 | d->vbar->triggerAction(QAbstractSlider::SliderPageStepSub); | - | ||||||
1278 | else | - | ||||||
1279 | d->vbar->triggerAction(QAbstractSlider::SliderPageStepAdd); | - | ||||||
1280 | break; | - | ||||||
1281 | default: | - | ||||||
1282 | d->sendControlEvent(e); | - | ||||||
1283 | if (!e->isAccepted() && e->modifiers() == Qt::NoModifier) { | - | ||||||
1284 | if (e->key() == Qt::Key_Home) { | - | ||||||
1285 | d->vbar->triggerAction(QAbstractSlider::SliderToMinimum); | - | ||||||
1286 | e->accept(); | - | ||||||
1287 | } else if (e->key() == Qt::Key_End) { | - | ||||||
1288 | d->vbar->triggerAction(QAbstractSlider::SliderToMaximum); | - | ||||||
1289 | e->accept(); | - | ||||||
1290 | } | - | ||||||
1291 | } | - | ||||||
1292 | if (!e->isAccepted()) { | - | ||||||
1293 | QAbstractScrollArea::keyPressEvent(e); | - | ||||||
1294 | } | - | ||||||
1295 | } | - | ||||||
1296 | return; | - | ||||||
1297 | } | - | ||||||
1298 | #endif // QT_NO_SHORTCUT | - | ||||||
1299 | - | |||||||
1300 | { | - | ||||||
1301 | QTextCursor cursor = d->control->textCursor(); | - | ||||||
1302 | const QString text = e->text(); | - | ||||||
1303 | if (cursor.atBlockStart() | - | ||||||
1304 | && (d->autoFormatting & AutoBulletList) | - | ||||||
1305 | && (text.length() == 1) | - | ||||||
1306 | && (text.at(0) == QLatin1Char('-') || text.at(0) == QLatin1Char('*')) | - | ||||||
1307 | && (!cursor.currentList())) { | - | ||||||
1308 | - | |||||||
1309 | d->createAutoBulletList(); | - | ||||||
1310 | e->accept(); | - | ||||||
1311 | return; | - | ||||||
1312 | } | - | ||||||
1313 | } | - | ||||||
1314 | - | |||||||
1315 | d->sendControlEvent(e); | - | ||||||
1316 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1317 | if (!e->isAccepted()) { | - | ||||||
1318 | switch (e->key()) { | - | ||||||
1319 | case Qt::Key_Up: | - | ||||||
1320 | case Qt::Key_Down: | - | ||||||
1321 | if (QApplication::keypadNavigationEnabled()) { | - | ||||||
1322 | // Cursor position didn't change, so we want to leave | - | ||||||
1323 | // these keys to change focus. | - | ||||||
1324 | e->ignore(); | - | ||||||
1325 | return; | - | ||||||
1326 | } | - | ||||||
1327 | break; | - | ||||||
1328 | case Qt::Key_Back: | - | ||||||
1329 | if (!e->isAutoRepeat()) { | - | ||||||
1330 | if (QApplication::keypadNavigationEnabled()) { | - | ||||||
1331 | if (document()->isEmpty() || !(d->control->textInteractionFlags() & Qt::TextEditable)) { | - | ||||||
1332 | setEditFocus(false); | - | ||||||
1333 | e->accept(); | - | ||||||
1334 | } else if (!d->deleteAllTimer.isActive()) { | - | ||||||
1335 | e->accept(); | - | ||||||
1336 | d->deleteAllTimer.start(750, this); | - | ||||||
1337 | } | - | ||||||
1338 | } else { | - | ||||||
1339 | e->ignore(); | - | ||||||
1340 | return; | - | ||||||
1341 | } | - | ||||||
1342 | } | - | ||||||
1343 | break; | - | ||||||
1344 | default: break; | - | ||||||
1345 | } | - | ||||||
1346 | } | - | ||||||
1347 | #endif | - | ||||||
1348 | } | - | ||||||
1349 | - | |||||||
1350 | /*! \reimp | - | ||||||
1351 | */ | - | ||||||
1352 | void QTextEdit::keyReleaseEvent(QKeyEvent *e) | - | ||||||
1353 | { | - | ||||||
1354 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1355 | Q_D(QTextEdit); | - | ||||||
1356 | if (QApplication::keypadNavigationEnabled()) { | - | ||||||
1357 | if (!e->isAutoRepeat() && e->key() == Qt::Key_Back | - | ||||||
1358 | && d->deleteAllTimer.isActive()) { | - | ||||||
1359 | d->deleteAllTimer.stop(); | - | ||||||
1360 | QTextCursor cursor = d->control->textCursor(); | - | ||||||
1361 | QTextBlockFormat blockFmt = cursor.blockFormat(); | - | ||||||
1362 | - | |||||||
1363 | QTextList *list = cursor.currentList(); | - | ||||||
1364 | if (list && cursor.atBlockStart()) { | - | ||||||
1365 | list->remove(cursor.block()); | - | ||||||
1366 | } else if (cursor.atBlockStart() && blockFmt.indent() > 0) { | - | ||||||
1367 | blockFmt.setIndent(blockFmt.indent() - 1); | - | ||||||
1368 | cursor.setBlockFormat(blockFmt); | - | ||||||
1369 | } else { | - | ||||||
1370 | cursor.deletePreviousChar(); | - | ||||||
1371 | } | - | ||||||
1372 | setTextCursor(cursor); | - | ||||||
1373 | e->accept(); | - | ||||||
1374 | return; | - | ||||||
1375 | } | - | ||||||
1376 | } | - | ||||||
1377 | #endif | - | ||||||
1378 | e->ignore(); | - | ||||||
1379 | } | - | ||||||
1380 | - | |||||||
1381 | /*! | - | ||||||
1382 | Loads the resource specified by the given \a type and \a name. | - | ||||||
1383 | - | |||||||
1384 | This function is an extension of QTextDocument::loadResource(). | - | ||||||
1385 | - | |||||||
1386 | \sa QTextDocument::loadResource() | - | ||||||
1387 | */ | - | ||||||
1388 | QVariant QTextEdit::loadResource(int type, const QUrl &name) | - | ||||||
1389 | { | - | ||||||
1390 | Q_UNUSED(type); | - | ||||||
1391 | Q_UNUSED(name); | - | ||||||
1392 | return QVariant(); | - | ||||||
1393 | } | - | ||||||
1394 | - | |||||||
1395 | /*! \reimp | - | ||||||
1396 | */ | - | ||||||
1397 | void QTextEdit::resizeEvent(QResizeEvent *e) | - | ||||||
1398 | { | - | ||||||
1399 | Q_D(QTextEdit); | - | ||||||
1400 | - | |||||||
1401 | if (d->lineWrap == NoWrap) { | - | ||||||
1402 | QTextDocument *doc = d->control->document(); | - | ||||||
1403 | QVariant alignmentProperty = doc->documentLayout()->property("contentHasAlignment"); | - | ||||||
1404 | - | |||||||
1405 | if (!doc->pageSize().isNull() | - | ||||||
1406 | && alignmentProperty.type() == QVariant::Bool | - | ||||||
1407 | && !alignmentProperty.toBool()) { | - | ||||||
1408 | - | |||||||
1409 | d->_q_adjustScrollbars(); | - | ||||||
1410 | return; | - | ||||||
1411 | } | - | ||||||
1412 | } | - | ||||||
1413 | - | |||||||
1414 | if (d->lineWrap != FixedPixelWidth | - | ||||||
1415 | && e->oldSize().width() != e->size().width()) | - | ||||||
1416 | d->relayoutDocument(); | - | ||||||
1417 | else | - | ||||||
1418 | d->_q_adjustScrollbars(); | - | ||||||
1419 | } | - | ||||||
1420 | - | |||||||
1421 | void QTextEditPrivate::relayoutDocument() | - | ||||||
1422 | { | - | ||||||
1423 | QTextDocument *doc = control->document(); | - | ||||||
1424 | QAbstractTextDocumentLayout *layout = doc->documentLayout(); | - | ||||||
1425 | - | |||||||
1426 | if (QTextDocumentLayout *tlayout = qobject_cast<QTextDocumentLayout *>(layout)) { | - | ||||||
1427 | if (lineWrap == QTextEdit::FixedColumnWidth) | - | ||||||
1428 | tlayout->setFixedColumnWidth(lineWrapColumnOrWidth); | - | ||||||
1429 | else | - | ||||||
1430 | tlayout->setFixedColumnWidth(-1); | - | ||||||
1431 | } | - | ||||||
1432 | - | |||||||
1433 | QTextDocumentLayout *tlayout = qobject_cast<QTextDocumentLayout *>(layout); | - | ||||||
1434 | QSize lastUsedSize; | - | ||||||
1435 | if (tlayout) | - | ||||||
1436 | lastUsedSize = tlayout->dynamicDocumentSize().toSize(); | - | ||||||
1437 | else | - | ||||||
1438 | lastUsedSize = layout->documentSize().toSize(); | - | ||||||
1439 | - | |||||||
1440 | // ignore calls to _q_adjustScrollbars caused by an emission of the | - | ||||||
1441 | // usedSizeChanged() signal in the layout, as we're calling it | - | ||||||
1442 | // later on our own anyway (or deliberately not) . | - | ||||||
1443 | const bool oldIgnoreScrollbarAdjustment = ignoreAutomaticScrollbarAdjustment; | - | ||||||
1444 | ignoreAutomaticScrollbarAdjustment = true; | - | ||||||
1445 | - | |||||||
1446 | int width = viewport->width(); | - | ||||||
1447 | if (lineWrap == QTextEdit::FixedPixelWidth) | - | ||||||
1448 | width = lineWrapColumnOrWidth; | - | ||||||
1449 | else if (lineWrap == QTextEdit::NoWrap) { | - | ||||||
1450 | QVariant alignmentProperty = doc->documentLayout()->property("contentHasAlignment"); | - | ||||||
1451 | if (alignmentProperty.type() == QVariant::Bool && !alignmentProperty.toBool()) { | - | ||||||
1452 | - | |||||||
1453 | width = 0; | - | ||||||
1454 | } | - | ||||||
1455 | } | - | ||||||
1456 | - | |||||||
1457 | doc->setPageSize(QSize(width, -1)); | - | ||||||
1458 | if (tlayout) | - | ||||||
1459 | tlayout->ensureLayouted(verticalOffset() + viewport->height()); | - | ||||||
1460 | - | |||||||
1461 | ignoreAutomaticScrollbarAdjustment = oldIgnoreScrollbarAdjustment; | - | ||||||
1462 | - | |||||||
1463 | QSize usedSize; | - | ||||||
1464 | if (tlayout) | - | ||||||
1465 | usedSize = tlayout->dynamicDocumentSize().toSize(); | - | ||||||
1466 | else | - | ||||||
1467 | usedSize = layout->documentSize().toSize(); | - | ||||||
1468 | - | |||||||
1469 | // this is an obscure situation in the layout that can happen: | - | ||||||
1470 | // if a character at the end of a line is the tallest one and therefore | - | ||||||
1471 | // influencing the total height of the line and the line right below it | - | ||||||
1472 | // is always taller though, then it can happen that if due to line breaking | - | ||||||
1473 | // that tall character wraps into the lower line the document not only shrinks | - | ||||||
1474 | // horizontally (causing the character to wrap in the first place) but also | - | ||||||
1475 | // vertically, because the original line is now smaller and the one below kept | - | ||||||
1476 | // its size. So a layout with less width _can_ take up less vertical space, too. | - | ||||||
1477 | // If the wider case causes a vertical scroll bar to appear and the narrower one | - | ||||||
1478 | // (narrower because the vertical scroll bar takes up horizontal space)) to disappear | - | ||||||
1479 | // again then we have an endless loop, as _q_adjustScrollBars sets new ranges on the | - | ||||||
1480 | // scroll bars, the QAbstractScrollArea will find out about it and try to show/hide | - | ||||||
1481 | // the scroll bars again. That's why we try to detect this case here and break out. | - | ||||||
1482 | // | - | ||||||
1483 | // (if you change this please also check the layoutingLoop() testcase in | - | ||||||
1484 | // QTextEdit's autotests) | - | ||||||
1485 | if (lastUsedSize.isValid() | - | ||||||
1486 | && !vbar->isHidden() | - | ||||||
1487 | && viewport->width() < lastUsedSize.width() | - | ||||||
1488 | && usedSize.height() < lastUsedSize.height() | - | ||||||
1489 | && usedSize.height() <= viewport->height()) | - | ||||||
1490 | return; | - | ||||||
1491 | - | |||||||
1492 | _q_adjustScrollbars(); | - | ||||||
1493 | } | - | ||||||
1494 | - | |||||||
1495 | void QTextEditPrivate::paint(QPainter *p, QPaintEvent *e) | - | ||||||
1496 | { | - | ||||||
1497 | const int xOffset = horizontalOffset(); | - | ||||||
1498 | const int yOffset = verticalOffset(); | - | ||||||
1499 | - | |||||||
1500 | QRect r = e->rect(); | - | ||||||
1501 | p->translate(-xOffset, -yOffset); | - | ||||||
1502 | r.translate(xOffset, yOffset); | - | ||||||
1503 | - | |||||||
1504 | QTextDocument *doc = control->document(); | - | ||||||
1505 | QTextDocumentLayout *layout = qobject_cast<QTextDocumentLayout *>(doc->documentLayout()); | - | ||||||
1506 | - | |||||||
1507 | // the layout might need to expand the root frame to | - | ||||||
1508 | // the viewport if NoWrap is set | - | ||||||
1509 | if (layout) | - | ||||||
1510 | layout->setViewport(viewport->rect()); | - | ||||||
1511 | - | |||||||
1512 | control->drawContents(p, r, q_func()); | - | ||||||
1513 | - | |||||||
1514 | if (layout) | - | ||||||
1515 | layout->setViewport(QRect()); | - | ||||||
1516 | - | |||||||
1517 | if (!placeholderText.isEmpty() && doc->isEmpty() && !control->isPreediting()) { | - | ||||||
1518 | QColor col = control->palette().text().color(); | - | ||||||
1519 | col.setAlpha(128); | - | ||||||
1520 | p->setPen(col); | - | ||||||
1521 | const int margin = int(doc->documentMargin()); | - | ||||||
1522 | p->drawText(viewport->rect().adjusted(margin, margin, -margin, -margin), Qt::AlignTop | Qt::TextWordWrap, placeholderText); | - | ||||||
1523 | } | - | ||||||
1524 | } | - | ||||||
1525 | - | |||||||
1526 | /*! \fn void QTextEdit::paintEvent(QPaintEvent *event) | - | ||||||
1527 | - | |||||||
1528 | This event handler can be reimplemented in a subclass to receive paint events passed in \a event. | - | ||||||
1529 | It is usually unnecessary to reimplement this function in a subclass of QTextEdit. | - | ||||||
1530 | - | |||||||
1531 | \warning The underlying text document must not be modified from within a reimplementation | - | ||||||
1532 | of this function. | - | ||||||
1533 | */ | - | ||||||
1534 | void QTextEdit::paintEvent(QPaintEvent *e) | - | ||||||
1535 | { | - | ||||||
1536 | Q_D(QTextEdit); | - | ||||||
1537 | QPainter p(d->viewport); | - | ||||||
1538 | d->paint(&p, e); | - | ||||||
1539 | } | - | ||||||
1540 | - | |||||||
1541 | void QTextEditPrivate::_q_currentCharFormatChanged(const QTextCharFormat &fmt) | - | ||||||
1542 | { | - | ||||||
1543 | Q_Q(QTextEdit); | - | ||||||
1544 | emit q->currentCharFormatChanged(fmt); | - | ||||||
1545 | } | - | ||||||
1546 | - | |||||||
1547 | void QTextEditPrivate::updateDefaultTextOption() | - | ||||||
1548 | { | - | ||||||
1549 | QTextDocument *doc = control->document(); | - | ||||||
1550 | - | |||||||
1551 | QTextOption opt = doc->defaultTextOption(); | - | ||||||
1552 | QTextOption::WrapMode oldWrapMode = opt.wrapMode(); | - | ||||||
1553 | - | |||||||
1554 | if (lineWrap == QTextEdit::NoWrap) | - | ||||||
1555 | opt.setWrapMode(QTextOption::NoWrap); | - | ||||||
1556 | else | - | ||||||
1557 | opt.setWrapMode(wordWrap); | - | ||||||
1558 | - | |||||||
1559 | if (opt.wrapMode() != oldWrapMode) | - | ||||||
1560 | doc->setDefaultTextOption(opt); | - | ||||||
1561 | } | - | ||||||
1562 | - | |||||||
1563 | /*! \reimp | - | ||||||
1564 | */ | - | ||||||
1565 | void QTextEdit::mousePressEvent(QMouseEvent *e) | - | ||||||
1566 | { | - | ||||||
1567 | Q_D(QTextEdit); | - | ||||||
1568 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1569 | if (QApplication::keypadNavigationEnabled() && !hasEditFocus()) | - | ||||||
1570 | setEditFocus(true); | - | ||||||
1571 | #endif | - | ||||||
1572 | d->sendControlEvent(e); | - | ||||||
1573 | } | - | ||||||
1574 | - | |||||||
1575 | /*! \reimp | - | ||||||
1576 | */ | - | ||||||
1577 | void QTextEdit::mouseMoveEvent(QMouseEvent *e) | - | ||||||
1578 | { | - | ||||||
1579 | Q_D(QTextEdit); | - | ||||||
1580 | d->inDrag = false; // paranoia | - | ||||||
1581 | const QPoint pos = e->pos(); | - | ||||||
1582 | d->sendControlEvent(e); | - | ||||||
1583 | if (!(e->buttons() & Qt::LeftButton)) | - | ||||||
1584 | return; | - | ||||||
1585 | if (e->source() == Qt::MouseEventNotSynthesized) { | - | ||||||
1586 | const QRect visible = d->viewport->rect(); | - | ||||||
1587 | if (visible.contains(pos)) | - | ||||||
1588 | d->autoScrollTimer.stop(); | - | ||||||
1589 | else if (!d->autoScrollTimer.isActive()) | - | ||||||
1590 | d->autoScrollTimer.start(100, this); | - | ||||||
1591 | } | - | ||||||
1592 | } | - | ||||||
1593 | - | |||||||
1594 | /*! \reimp | - | ||||||
1595 | */ | - | ||||||
1596 | void QTextEdit::mouseReleaseEvent(QMouseEvent *e) | - | ||||||
1597 | { | - | ||||||
1598 | Q_D(QTextEdit); | - | ||||||
1599 | d->sendControlEvent(e); | - | ||||||
1600 | if (e->source() == Qt::MouseEventNotSynthesized && d->autoScrollTimer.isActive()) { | - | ||||||
1601 | d->autoScrollTimer.stop(); | - | ||||||
1602 | ensureCursorVisible(); | - | ||||||
1603 | } | - | ||||||
1604 | if (!isReadOnly() && rect().contains(e->pos())) | - | ||||||
1605 | d->handleSoftwareInputPanel(e->button(), d->clickCausedFocus); | - | ||||||
1606 | d->clickCausedFocus = 0; | - | ||||||
1607 | } | - | ||||||
1608 | - | |||||||
1609 | /*! \reimp | - | ||||||
1610 | */ | - | ||||||
1611 | void QTextEdit::mouseDoubleClickEvent(QMouseEvent *e) | - | ||||||
1612 | { | - | ||||||
1613 | Q_D(QTextEdit); | - | ||||||
1614 | d->sendControlEvent(e); | - | ||||||
1615 | } | - | ||||||
1616 | - | |||||||
1617 | /*! \reimp | - | ||||||
1618 | */ | - | ||||||
1619 | bool QTextEdit::focusNextPrevChild(bool next) | - | ||||||
1620 | { | - | ||||||
1621 | Q_D(const QTextEdit); | - | ||||||
1622 | if (!d->tabChangesFocus && d->control->textInteractionFlags() & Qt::TextEditable) | - | ||||||
1623 | return false; | - | ||||||
1624 | return QAbstractScrollArea::focusNextPrevChild(next); | - | ||||||
1625 | } | - | ||||||
1626 | - | |||||||
1627 | #ifndef QT_NO_CONTEXTMENU | - | ||||||
1628 | /*! | - | ||||||
1629 | \fn void QTextEdit::contextMenuEvent(QContextMenuEvent *event) | - | ||||||
1630 | - | |||||||
1631 | Shows the standard context menu created with createStandardContextMenu(). | - | ||||||
1632 | - | |||||||
1633 | If you do not want the text edit to have a context menu, you can set | - | ||||||
1634 | its \l contextMenuPolicy to Qt::NoContextMenu. If you want to | - | ||||||
1635 | customize the context menu, reimplement this function. If you want | - | ||||||
1636 | to extend the standard context menu, reimplement this function, call | - | ||||||
1637 | createStandardContextMenu() and extend the menu returned. | - | ||||||
1638 | - | |||||||
1639 | Information about the event is passed in the \a event object. | - | ||||||
1640 | - | |||||||
1641 | \snippet code/src_gui_widgets_qtextedit.cpp 0 | - | ||||||
1642 | */ | - | ||||||
1643 | void QTextEdit::contextMenuEvent(QContextMenuEvent *e) | - | ||||||
1644 | { | - | ||||||
1645 | Q_D(QTextEdit); | - | ||||||
1646 | d->sendControlEvent(e); | - | ||||||
1647 | } | - | ||||||
1648 | #endif // QT_NO_CONTEXTMENU | - | ||||||
1649 | - | |||||||
1650 | #ifndef QT_NO_DRAGANDDROP | - | ||||||
1651 | /*! \reimp | - | ||||||
1652 | */ | - | ||||||
1653 | void QTextEdit::dragEnterEvent(QDragEnterEvent *e) | - | ||||||
1654 | { | - | ||||||
1655 | Q_D(QTextEdit); | - | ||||||
1656 | d->inDrag = true; | - | ||||||
1657 | d->sendControlEvent(e); | - | ||||||
1658 | } | - | ||||||
1659 | - | |||||||
1660 | /*! \reimp | - | ||||||
1661 | */ | - | ||||||
1662 | void QTextEdit::dragLeaveEvent(QDragLeaveEvent *e) | - | ||||||
1663 | { | - | ||||||
1664 | Q_D(QTextEdit); | - | ||||||
1665 | d->inDrag = false; | - | ||||||
1666 | d->autoScrollTimer.stop(); | - | ||||||
1667 | d->sendControlEvent(e); | - | ||||||
1668 | } | - | ||||||
1669 | - | |||||||
1670 | /*! \reimp | - | ||||||
1671 | */ | - | ||||||
1672 | void QTextEdit::dragMoveEvent(QDragMoveEvent *e) | - | ||||||
1673 | { | - | ||||||
1674 | Q_D(QTextEdit); | - | ||||||
1675 | d->autoScrollDragPos = e->pos(); | - | ||||||
1676 | if (!d->autoScrollTimer.isActive()) | - | ||||||
1677 | d->autoScrollTimer.start(100, this); | - | ||||||
1678 | d->sendControlEvent(e); | - | ||||||
1679 | } | - | ||||||
1680 | - | |||||||
1681 | /*! \reimp | - | ||||||
1682 | */ | - | ||||||
1683 | void QTextEdit::dropEvent(QDropEvent *e) | - | ||||||
1684 | { | - | ||||||
1685 | Q_D(QTextEdit); | - | ||||||
1686 | d->inDrag = false; | - | ||||||
1687 | d->autoScrollTimer.stop(); | - | ||||||
1688 | d->sendControlEvent(e); | - | ||||||
1689 | } | - | ||||||
1690 | - | |||||||
1691 | #endif // QT_NO_DRAGANDDROP | - | ||||||
1692 | - | |||||||
1693 | /*! \reimp | - | ||||||
1694 | */ | - | ||||||
1695 | void QTextEdit::inputMethodEvent(QInputMethodEvent *e) | - | ||||||
1696 | { | - | ||||||
1697 | Q_D(QTextEdit); | - | ||||||
1698 | #ifdef QT_KEYPAD_NAVIGATION | - | ||||||
1699 | if (d->control->textInteractionFlags() & Qt::TextEditable | - | ||||||
1700 | && QApplication::keypadNavigationEnabled() | - | ||||||
1701 | && !hasEditFocus()) | - | ||||||
1702 | setEditFocus(true); | - | ||||||
1703 | #endif | - | ||||||
1704 | d->sendControlEvent(e); | - | ||||||
1705 | ensureCursorVisible(); | - | ||||||
1706 | } | - | ||||||
1707 | - | |||||||
1708 | /*!\reimp | - | ||||||
1709 | */ | - | ||||||
1710 | void QTextEdit::scrollContentsBy(int dx, int dy) | - | ||||||
1711 | { | - | ||||||
1712 | Q_D(QTextEdit); | - | ||||||
1713 | if (isRightToLeft())
| 0 | ||||||
1714 | dx = -dx; never executed: dx = -dx; | 0 | ||||||
1715 | d->viewport->scroll(dx, dy); | - | ||||||
1716 | QGuiApplication::inputMethod()->update(Qt::ImCursorRectangle | Qt::ImAnchorRectangle); | - | ||||||
1717 | } never executed: end of block | 0 | ||||||
1718 | - | |||||||
1719 | /*!\reimp | - | ||||||
1720 | */ | - | ||||||
1721 | QVariant QTextEdit::inputMethodQuery(Qt::InputMethodQuery property) const | - | ||||||
1722 | { | - | ||||||
1723 | return inputMethodQuery(property, QVariant()); | - | ||||||
1724 | } | - | ||||||
1725 | - | |||||||
1726 | /*!\internal | - | ||||||
1727 | */ | - | ||||||
1728 | QVariant QTextEdit::inputMethodQuery(Qt::InputMethodQuery query, QVariant argument) const | - | ||||||
1729 | { | - | ||||||
1730 | Q_D(const QTextEdit); | - | ||||||
1731 | ifswitch (query==) { | - | ||||||
1732 | case never executed: Qt::ImHints):case Qt::ImHints: never executed: case Qt::ImHints: | 0 | ||||||
1733 | case Qt::ImInputItemClipRectangle: never executed: case Qt::ImInputItemClipRectangle: | 0 | ||||||
1734 | return QWidget::inputMethodQuery(query); never executed: return QWidget::inputMethodQuery(query); | 0 | ||||||
1735 | default: never executed: default: | 0 | ||||||
1736 | break; never executed: break; | 0 | ||||||
1737 | } | - | ||||||
1738 | - | |||||||
1739 | const QPointF offset(-d->horizontalOffset(), -d->verticalOffset()); | - | ||||||
1740 | switch (argument.type()) { | - | ||||||
1741 | case QVariant::RectF: never executed: case QVariant::RectF: | 0 | ||||||
1742 | argument = argument.toRectF().translated(-offset); | - | ||||||
1743 | break; never executed: break; | 0 | ||||||
1744 | case QVariant::PointF: never executed: case QVariant::PointF: | 0 | ||||||
1745 | argument = argument.toPointF() - offset; | - | ||||||
1746 | break; never executed: break; | 0 | ||||||
1747 | case QVariant::Rect: never executed: case QVariant::Rect: | 0 | ||||||
1748 | argument = argument.toRect().translated(-offset.toPoint()); | - | ||||||
1749 | break; never executed: break; | 0 | ||||||
1750 | case QVariant::Point: never executed: case QVariant::Point: | 0 | ||||||
1751 | argument = argument.toPoint() - offset; | - | ||||||
1752 | break; never executed: break; | 0 | ||||||
1753 | default: never executed: default: | 0 | ||||||
1754 | break; never executed: break; | 0 | ||||||
1755 | } | - | ||||||
1756 | - | |||||||
1757 | const QVariant v = d->control->inputMethodQuery(query, argument);const QPointF offset(-d->horizontalOffset(), -d->verticalOffset()); | - | ||||||
1758 | switch (v.type()) { | - | ||||||
1759 | case QVariant::RectF: never executed: case QVariant::RectF: | 0 | ||||||
1760 | return v.toRectF().translated(offset); never executed: return v.toRectF().translated(offset); | 0 | ||||||
1761 | case QVariant::PointF: never executed: case QVariant::PointF: | 0 | ||||||
1762 | return v.toPointF() + offset; never executed: return v.toPointF() + offset; | 0 | ||||||
1763 | case QVariant::Rect: never executed: case QVariant::Rect: | 0 | ||||||
1764 | return v.toRect().translated(offset.toPoint()); never executed: return v.toRect().translated(offset.toPoint()); | 0 | ||||||
1765 | case QVariant::Point: never executed: case QVariant::Point: | 0 | ||||||
1766 | return v.toPoint() + offset.toPoint(); never executed: return v.toPoint() + offset.toPoint(); | 0 | ||||||
1767 | default: never executed: default: | 0 | ||||||
1768 | break; never executed: break; | 0 | ||||||
1769 | } | - | ||||||
1770 | return v; never executed: return v; | 0 | ||||||
1771 | } | - | ||||||
1772 | - | |||||||
1773 | /*! \reimp | - | ||||||
1774 | */ | - | ||||||
1775 | void QTextEdit::focusInEvent(QFocusEvent *e) | - | ||||||
1776 | { | - | ||||||
1777 | Q_D(QTextEdit); | - | ||||||
1778 | if (e->reason() == Qt::MouseFocusReason) { | - | ||||||
1779 | d->clickCausedFocus = 1; | - | ||||||
1780 | } | - | ||||||
1781 | QAbstractScrollArea::focusInEvent(e); | - | ||||||
1782 | d->sendControlEvent(e); | - | ||||||
1783 | } | - | ||||||
1784 | - | |||||||
1785 | /*! \reimp | - | ||||||
1786 | */ | - | ||||||
1787 | void QTextEdit::focusOutEvent(QFocusEvent *e) | - | ||||||
1788 | { | - | ||||||
1789 | Q_D(QTextEdit); | - | ||||||
1790 | QAbstractScrollArea::focusOutEvent(e); | - | ||||||
1791 | d->sendControlEvent(e); | - | ||||||
1792 | } | - | ||||||
1793 | - | |||||||
1794 | /*! \reimp | - | ||||||
1795 | */ | - | ||||||
1796 | void QTextEdit::showEvent(QShowEvent *) | - | ||||||
1797 | { | - | ||||||
1798 | Q_D(QTextEdit); | - | ||||||
1799 | if (!d->anchorToScrollToWhenVisible.isEmpty()) { | - | ||||||
1800 | scrollToAnchor(d->anchorToScrollToWhenVisible); | - | ||||||
1801 | d->anchorToScrollToWhenVisible.clear(); | - | ||||||
1802 | d->showCursorOnInitialShow = false; | - | ||||||
1803 | } else if (d->showCursorOnInitialShow) { | - | ||||||
1804 | d->showCursorOnInitialShow = false; | - | ||||||
1805 | ensureCursorVisible(); | - | ||||||
1806 | } | - | ||||||
1807 | } | - | ||||||
1808 | - | |||||||
1809 | /*! \reimp | - | ||||||
1810 | */ | - | ||||||
1811 | void QTextEdit::changeEvent(QEvent *e) | - | ||||||
1812 | { | - | ||||||
1813 | Q_D(QTextEdit); | - | ||||||
1814 | QAbstractScrollArea::changeEvent(e); | - | ||||||
1815 | if (e->type() == QEvent::ApplicationFontChange | - | ||||||
1816 | || e->type() == QEvent::FontChange) { | - | ||||||
1817 | d->control->document()->setDefaultFont(font()); | - | ||||||
1818 | } else if(e->type() == QEvent::ActivationChange) { | - | ||||||
1819 | if (!isActiveWindow()) | - | ||||||
1820 | d->autoScrollTimer.stop(); | - | ||||||
1821 | } else if (e->type() == QEvent::EnabledChange) { | - | ||||||
1822 | e->setAccepted(isEnabled()); | - | ||||||
1823 | d->control->setPalette(palette()); | - | ||||||
1824 | d->sendControlEvent(e); | - | ||||||
1825 | } else if (e->type() == QEvent::PaletteChange) { | - | ||||||
1826 | d->control->setPalette(palette()); | - | ||||||
1827 | } else if (e->type() == QEvent::LayoutDirectionChange) { | - | ||||||
1828 | d->sendControlEvent(e); | - | ||||||
1829 | } | - | ||||||
1830 | } | - | ||||||
1831 | - | |||||||
1832 | /*! \reimp | - | ||||||
1833 | */ | - | ||||||
1834 | #ifndef QT_NO_WHEELEVENT | - | ||||||
1835 | void QTextEdit::wheelEvent(QWheelEvent *e) | - | ||||||
1836 | { | - | ||||||
1837 | Q_D(QTextEdit); | - | ||||||
1838 | if (!(d->control->textInteractionFlags() & Qt::TextEditable)) { | - | ||||||
1839 | if (e->modifiers() & Qt::ControlModifier) { | - | ||||||
1840 | float delta = e->angleDelta().y() / 120.f; | - | ||||||
1841 | zoomInF(delta); | - | ||||||
1842 | return; | - | ||||||
1843 | } | - | ||||||
1844 | } | - | ||||||
1845 | QAbstractScrollArea::wheelEvent(e); | - | ||||||
1846 | updateMicroFocus(); | - | ||||||
1847 | } | - | ||||||
1848 | #endif | - | ||||||
1849 | - | |||||||
1850 | #ifndef QT_NO_CONTEXTMENU | - | ||||||
1851 | /*! This function creates the standard context menu which is shown | - | ||||||
1852 | when the user clicks on the text edit with the right mouse | - | ||||||
1853 | button. It is called from the default contextMenuEvent() handler. | - | ||||||
1854 | The popup menu's ownership is transferred to the caller. | - | ||||||
1855 | - | |||||||
1856 | We recommend that you use the createStandardContextMenu(QPoint) version instead | - | ||||||
1857 | which will enable the actions that are sensitive to where the user clicked. | - | ||||||
1858 | */ | - | ||||||
1859 | - | |||||||
1860 | QMenu *QTextEdit::createStandardContextMenu() | - | ||||||
1861 | { | - | ||||||
1862 | Q_D(QTextEdit); | - | ||||||
1863 | return d->control->createStandardContextMenu(QPointF(), this); | - | ||||||
1864 | } | - | ||||||
1865 | - | |||||||
1866 | /*! | - | ||||||
1867 | \since 4.4 | - | ||||||
1868 | This function creates the standard context menu which is shown | - | ||||||
1869 | when the user clicks on the text edit with the right mouse | - | ||||||
1870 | button. It is called from the default contextMenuEvent() handler | - | ||||||
1871 | and it takes the \a position in document coordinates where the mouse click was. | - | ||||||
1872 | This can enable actions that are sensitive to the position where the user clicked. | - | ||||||
1873 | The popup menu's ownership is transferred to the caller. | - | ||||||
1874 | */ | - | ||||||
1875 | - | |||||||
1876 | QMenu *QTextEdit::createStandardContextMenu(const QPoint &position) | - | ||||||
1877 | { | - | ||||||
1878 | Q_D(QTextEdit); | - | ||||||
1879 | return d->control->createStandardContextMenu(position, this); | - | ||||||
1880 | } | - | ||||||
1881 | #endif // QT_NO_CONTEXTMENU | - | ||||||
1882 | - | |||||||
1883 | /*! | - | ||||||
1884 | returns a QTextCursor at position \a pos (in viewport coordinates). | - | ||||||
1885 | */ | - | ||||||
1886 | QTextCursor QTextEdit::cursorForPosition(const QPoint &pos) const | - | ||||||
1887 | { | - | ||||||
1888 | Q_D(const QTextEdit); | - | ||||||
1889 | return d->control->cursorForPosition(d->mapToContents(pos)); | - | ||||||
1890 | } | - | ||||||
1891 | - | |||||||
1892 | /*! | - | ||||||
1893 | returns a rectangle (in viewport coordinates) that includes the | - | ||||||
1894 | \a cursor. | - | ||||||
1895 | */ | - | ||||||
1896 | QRect QTextEdit::cursorRect(const QTextCursor &cursor) const | - | ||||||
1897 | { | - | ||||||
1898 | Q_D(const QTextEdit); | - | ||||||
1899 | if (cursor.isNull()) | - | ||||||
1900 | return QRect(); | - | ||||||
1901 | - | |||||||
1902 | QRect r = d->control->cursorRect(cursor).toRect(); | - | ||||||
1903 | r.translate(-d->horizontalOffset(),-d->verticalOffset()); | - | ||||||
1904 | return r; | - | ||||||
1905 | } | - | ||||||
1906 | - | |||||||
1907 | /*! | - | ||||||
1908 | returns a rectangle (in viewport coordinates) that includes the | - | ||||||
1909 | cursor of the text edit. | - | ||||||
1910 | */ | - | ||||||
1911 | QRect QTextEdit::cursorRect() const | - | ||||||
1912 | { | - | ||||||
1913 | Q_D(const QTextEdit); | - | ||||||
1914 | QRect r = d->control->cursorRect().toRect(); | - | ||||||
1915 | r.translate(-d->horizontalOffset(),-d->verticalOffset()); | - | ||||||
1916 | return r; | - | ||||||
1917 | } | - | ||||||
1918 | - | |||||||
1919 | - | |||||||
1920 | /*! | - | ||||||
1921 | Returns the reference of the anchor at position \a pos, or an | - | ||||||
1922 | empty string if no anchor exists at that point. | - | ||||||
1923 | */ | - | ||||||
1924 | QString QTextEdit::anchorAt(const QPoint& pos) const | - | ||||||
1925 | { | - | ||||||
1926 | Q_D(const QTextEdit); | - | ||||||
1927 | return d->control->anchorAt(d->mapToContents(pos)); | - | ||||||
1928 | } | - | ||||||
1929 | - | |||||||
1930 | /*! | - | ||||||
1931 | \property QTextEdit::overwriteMode | - | ||||||
1932 | \since 4.1 | - | ||||||
1933 | \brief whether text entered by the user will overwrite existing text | - | ||||||
1934 | - | |||||||
1935 | As with many text editors, the text editor widget can be configured | - | ||||||
1936 | to insert or overwrite existing text with new text entered by the user. | - | ||||||
1937 | - | |||||||
1938 | If this property is \c true, existing text is overwritten, character-for-character | - | ||||||
1939 | by new text; otherwise, text is inserted at the cursor position, displacing | - | ||||||
1940 | existing text. | - | ||||||
1941 | - | |||||||
1942 | By default, this property is \c false (new text does not overwrite existing text). | - | ||||||
1943 | */ | - | ||||||
1944 | - | |||||||
1945 | bool QTextEdit::overwriteMode() const | - | ||||||
1946 | { | - | ||||||
1947 | Q_D(const QTextEdit); | - | ||||||
1948 | return d->control->overwriteMode(); | - | ||||||
1949 | } | - | ||||||
1950 | - | |||||||
1951 | void QTextEdit::setOverwriteMode(bool overwrite) | - | ||||||
1952 | { | - | ||||||
1953 | Q_D(QTextEdit); | - | ||||||
1954 | d->control->setOverwriteMode(overwrite); | - | ||||||
1955 | } | - | ||||||
1956 | - | |||||||
1957 | /*! | - | ||||||
1958 | \property QTextEdit::tabStopWidth | - | ||||||
1959 | \brief the tab stop width in pixels | - | ||||||
1960 | \since 4.1 | - | ||||||
1961 | - | |||||||
1962 | By default, this property contains a value of 80 pixels. | - | ||||||
1963 | */ | - | ||||||
1964 | - | |||||||
1965 | int QTextEdit::tabStopWidth() const | - | ||||||
1966 | { | - | ||||||
1967 | Q_D(const QTextEdit); | - | ||||||
1968 | return qRound(d->control->document()->defaultTextOption().tabStop()); | - | ||||||
1969 | } | - | ||||||
1970 | - | |||||||
1971 | void QTextEdit::setTabStopWidth(int width) | - | ||||||
1972 | { | - | ||||||
1973 | Q_D(QTextEdit); | - | ||||||
1974 | QTextOption opt = d->control->document()->defaultTextOption(); | - | ||||||
1975 | if (opt.tabStop() == width || width < 0) | - | ||||||
1976 | return; | - | ||||||
1977 | opt.setTabStop(width); | - | ||||||
1978 | d->control->document()->setDefaultTextOption(opt); | - | ||||||
1979 | } | - | ||||||
1980 | - | |||||||
1981 | /*! | - | ||||||
1982 | \since 4.2 | - | ||||||
1983 | \property QTextEdit::cursorWidth | - | ||||||
1984 | - | |||||||
1985 | This property specifies the width of the cursor in pixels. The default value is 1. | - | ||||||
1986 | */ | - | ||||||
1987 | int QTextEdit::cursorWidth() const | - | ||||||
1988 | { | - | ||||||
1989 | Q_D(const QTextEdit); | - | ||||||
1990 | return d->control->cursorWidth(); | - | ||||||
1991 | } | - | ||||||
1992 | - | |||||||
1993 | void QTextEdit::setCursorWidth(int width) | - | ||||||
1994 | { | - | ||||||
1995 | Q_D(QTextEdit); | - | ||||||
1996 | d->control->setCursorWidth(width); | - | ||||||
1997 | } | - | ||||||
1998 | - | |||||||
1999 | /*! | - | ||||||
2000 | \property QTextEdit::acceptRichText | - | ||||||
2001 | \brief whether the text edit accepts rich text insertions by the user | - | ||||||
2002 | \since 4.1 | - | ||||||
2003 | - | |||||||
2004 | When this propery is set to false text edit will accept only | - | ||||||
2005 | plain text input from the user. For example through clipboard or drag and drop. | - | ||||||
2006 | - | |||||||
2007 | This property's default is true. | - | ||||||
2008 | */ | - | ||||||
2009 | - | |||||||
2010 | bool QTextEdit::acceptRichText() const | - | ||||||
2011 | { | - | ||||||
2012 | Q_D(const QTextEdit); | - | ||||||
2013 | return d->control->acceptRichText(); | - | ||||||
2014 | } | - | ||||||
2015 | - | |||||||
2016 | void QTextEdit::setAcceptRichText(bool accept) | - | ||||||
2017 | { | - | ||||||
2018 | Q_D(QTextEdit); | - | ||||||
2019 | d->control->setAcceptRichText(accept); | - | ||||||
2020 | } | - | ||||||
2021 | - | |||||||
2022 | /*! | - | ||||||
2023 | \class QTextEdit::ExtraSelection | - | ||||||
2024 | \since 4.2 | - | ||||||
2025 | \inmodule QtWidgets | - | ||||||
2026 | - | |||||||
2027 | \brief The QTextEdit::ExtraSelection structure provides a way of specifying a | - | ||||||
2028 | character format for a given selection in a document | - | ||||||
2029 | */ | - | ||||||
2030 | - | |||||||
2031 | /*! | - | ||||||
2032 | \variable QTextEdit::ExtraSelection::cursor | - | ||||||
2033 | A cursor that contains a selection in a QTextDocument | - | ||||||
2034 | */ | - | ||||||
2035 | - | |||||||
2036 | /*! | - | ||||||
2037 | \variable QTextEdit::ExtraSelection::format | - | ||||||
2038 | A format that is used to specify a foreground or background brush/color | - | ||||||
2039 | for the selection. | - | ||||||
2040 | */ | - | ||||||
2041 | - | |||||||
2042 | /*! | - | ||||||
2043 | \since 4.2 | - | ||||||
2044 | This function allows temporarily marking certain regions in the document | - | ||||||
2045 | with a given color, specified as \a selections. This can be useful for | - | ||||||
2046 | example in a programming editor to mark a whole line of text with a given | - | ||||||
2047 | background color to indicate the existence of a breakpoint. | - | ||||||
2048 | - | |||||||
2049 | \sa QTextEdit::ExtraSelection, extraSelections() | - | ||||||
2050 | */ | - | ||||||
2051 | void QTextEdit::setExtraSelections(const QList<ExtraSelection> &selections) | - | ||||||
2052 | { | - | ||||||
2053 | Q_D(QTextEdit); | - | ||||||
2054 | d->control->setExtraSelections(selections); | - | ||||||
2055 | } | - | ||||||
2056 | - | |||||||
2057 | /*! | - | ||||||
2058 | \since 4.2 | - | ||||||
2059 | Returns previously set extra selections. | - | ||||||
2060 | - | |||||||
2061 | \sa setExtraSelections() | - | ||||||
2062 | */ | - | ||||||
2063 | QList<QTextEdit::ExtraSelection> QTextEdit::extraSelections() const | - | ||||||
2064 | { | - | ||||||
2065 | Q_D(const QTextEdit); | - | ||||||
2066 | return d->control->extraSelections(); | - | ||||||
2067 | } | - | ||||||
2068 | - | |||||||
2069 | /*! | - | ||||||
2070 | This function returns a new MIME data object to represent the contents | - | ||||||
2071 | of the text edit's current selection. It is called when the selection needs | - | ||||||
2072 | to be encapsulated into a new QMimeData object; for example, when a drag | - | ||||||
2073 | and drop operation is started, or when data is copied to the clipboard. | - | ||||||
2074 | - | |||||||
2075 | If you reimplement this function, note that the ownership of the returned | - | ||||||
2076 | QMimeData object is passed to the caller. The selection can be retrieved | - | ||||||
2077 | by using the textCursor() function. | - | ||||||
2078 | */ | - | ||||||
2079 | QMimeData *QTextEdit::createMimeDataFromSelection() const | - | ||||||
2080 | { | - | ||||||
2081 | Q_D(const QTextEdit); | - | ||||||
2082 | return d->control->QWidgetTextControl::createMimeDataFromSelection(); | - | ||||||
2083 | } | - | ||||||
2084 | - | |||||||
2085 | /*! | - | ||||||
2086 | This function returns \c true if the contents of the MIME data object, specified | - | ||||||
2087 | by \a source, can be decoded and inserted into the document. It is called | - | ||||||
2088 | for example when during a drag operation the mouse enters this widget and it | - | ||||||
2089 | is necessary to determine whether it is possible to accept the drag and drop | - | ||||||
2090 | operation. | - | ||||||
2091 | - | |||||||
2092 | Reimplement this function to enable drag and drop support for additional MIME types. | - | ||||||
2093 | */ | - | ||||||
2094 | bool QTextEdit::canInsertFromMimeData(const QMimeData *source) const | - | ||||||
2095 | { | - | ||||||
2096 | Q_D(const QTextEdit); | - | ||||||
2097 | return d->control->QWidgetTextControl::canInsertFromMimeData(source); | - | ||||||
2098 | } | - | ||||||
2099 | - | |||||||
2100 | /*! | - | ||||||
2101 | This function inserts the contents of the MIME data object, specified | - | ||||||
2102 | by \a source, into the text edit at the current cursor position. It is | - | ||||||
2103 | called whenever text is inserted as the result of a clipboard paste | - | ||||||
2104 | operation, or when the text edit accepts data from a drag and drop | - | ||||||
2105 | operation. | - | ||||||
2106 | - | |||||||
2107 | Reimplement this function to enable drag and drop support for additional MIME types. | - | ||||||
2108 | */ | - | ||||||
2109 | void QTextEdit::insertFromMimeData(const QMimeData *source) | - | ||||||
2110 | { | - | ||||||
2111 | Q_D(QTextEdit); | - | ||||||
2112 | d->control->QWidgetTextControl::insertFromMimeData(source); | - | ||||||
2113 | } | - | ||||||
2114 | - | |||||||
2115 | /*! | - | ||||||
2116 | \property QTextEdit::readOnly | - | ||||||
2117 | \brief whether the text edit is read-only | - | ||||||
2118 | - | |||||||
2119 | In a read-only text edit the user can only navigate through the | - | ||||||
2120 | text and select text; modifying the text is not possible. | - | ||||||
2121 | - | |||||||
2122 | This property's default is false. | - | ||||||
2123 | */ | - | ||||||
2124 | - | |||||||
2125 | bool QTextEdit::isReadOnly() const | - | ||||||
2126 | { | - | ||||||
2127 | Q_D(const QTextEdit); | - | ||||||
2128 | return !(d->control->textInteractionFlags() & Qt::TextEditable); | - | ||||||
2129 | } | - | ||||||
2130 | - | |||||||
2131 | void QTextEdit::setReadOnly(bool ro) | - | ||||||
2132 | { | - | ||||||
2133 | Q_D(QTextEdit); | - | ||||||
2134 | Qt::TextInteractionFlags flags = Qt::NoTextInteraction; | - | ||||||
2135 | if (ro) { | - | ||||||
2136 | flags = Qt::TextSelectableByMouse; | - | ||||||
2137 | #ifndef QT_NO_TEXTBROWSER | - | ||||||
2138 | if (qobject_cast<QTextBrowser *>(this)) | - | ||||||
2139 | flags |= Qt::TextBrowserInteraction; | - | ||||||
2140 | #endif | - | ||||||
2141 | } else { | - | ||||||
2142 | flags = Qt::TextEditorInteraction; | - | ||||||
2143 | } | - | ||||||
2144 | d->control->setTextInteractionFlags(flags); | - | ||||||
2145 | setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod(this)); | - | ||||||
2146 | QEvent event(QEvent::ReadOnlyChange); | - | ||||||
2147 | QApplication::sendEvent(this, &event); | - | ||||||
2148 | } | - | ||||||
2149 | - | |||||||
2150 | /*! | - | ||||||
2151 | \property QTextEdit::textInteractionFlags | - | ||||||
2152 | \since 4.2 | - | ||||||
2153 | - | |||||||
2154 | Specifies how the widget should interact with user input. | - | ||||||
2155 | - | |||||||
2156 | The default value depends on whether the QTextEdit is read-only | - | ||||||
2157 | or editable, and whether it is a QTextBrowser or not. | - | ||||||
2158 | */ | - | ||||||
2159 | - | |||||||
2160 | void QTextEdit::setTextInteractionFlags(Qt::TextInteractionFlags flags) | - | ||||||
2161 | { | - | ||||||
2162 | Q_D(QTextEdit); | - | ||||||
2163 | d->control->setTextInteractionFlags(flags); | - | ||||||
2164 | } | - | ||||||
2165 | - | |||||||
2166 | Qt::TextInteractionFlags QTextEdit::textInteractionFlags() const | - | ||||||
2167 | { | - | ||||||
2168 | Q_D(const QTextEdit); | - | ||||||
2169 | return d->control->textInteractionFlags(); | - | ||||||
2170 | } | - | ||||||
2171 | - | |||||||
2172 | /*! | - | ||||||
2173 | Merges the properties specified in \a modifier into the current character | - | ||||||
2174 | format by calling QTextCursor::mergeCharFormat on the editor's cursor. | - | ||||||
2175 | If the editor has a selection then the properties of \a modifier are | - | ||||||
2176 | directly applied to the selection. | - | ||||||
2177 | - | |||||||
2178 | \sa QTextCursor::mergeCharFormat() | - | ||||||
2179 | */ | - | ||||||
2180 | void QTextEdit::mergeCurrentCharFormat(const QTextCharFormat &modifier) | - | ||||||
2181 | { | - | ||||||
2182 | Q_D(QTextEdit); | - | ||||||
2183 | d->control->mergeCurrentCharFormat(modifier); | - | ||||||
2184 | } | - | ||||||
2185 | - | |||||||
2186 | /*! | - | ||||||
2187 | Sets the char format that is be used when inserting new text to \a | - | ||||||
2188 | format by calling QTextCursor::setCharFormat() on the editor's | - | ||||||
2189 | cursor. If the editor has a selection then the char format is | - | ||||||
2190 | directly applied to the selection. | - | ||||||
2191 | */ | - | ||||||
2192 | void QTextEdit::setCurrentCharFormat(const QTextCharFormat &format) | - | ||||||
2193 | { | - | ||||||
2194 | Q_D(QTextEdit); | - | ||||||
2195 | d->control->setCurrentCharFormat(format); | - | ||||||
2196 | } | - | ||||||
2197 | - | |||||||
2198 | /*! | - | ||||||
2199 | Returns the char format that is used when inserting new text. | - | ||||||
2200 | */ | - | ||||||
2201 | QTextCharFormat QTextEdit::currentCharFormat() const | - | ||||||
2202 | { | - | ||||||
2203 | Q_D(const QTextEdit); | - | ||||||
2204 | return d->control->currentCharFormat(); | - | ||||||
2205 | } | - | ||||||
2206 | - | |||||||
2207 | /*! | - | ||||||
2208 | \property QTextEdit::autoFormatting | - | ||||||
2209 | \brief the enabled set of auto formatting features | - | ||||||
2210 | - | |||||||
2211 | The value can be any combination of the values in the | - | ||||||
2212 | AutoFormattingFlag enum. The default is AutoNone. Choose | - | ||||||
2213 | AutoAll to enable all automatic formatting. | - | ||||||
2214 | - | |||||||
2215 | Currently, the only automatic formatting feature provided is | - | ||||||
2216 | AutoBulletList; future versions of Qt may offer more. | - | ||||||
2217 | */ | - | ||||||
2218 | - | |||||||
2219 | QTextEdit::AutoFormatting QTextEdit::autoFormatting() const | - | ||||||
2220 | { | - | ||||||
2221 | Q_D(const QTextEdit); | - | ||||||
2222 | return d->autoFormatting; | - | ||||||
2223 | } | - | ||||||
2224 | - | |||||||
2225 | void QTextEdit::setAutoFormatting(AutoFormatting features) | - | ||||||
2226 | { | - | ||||||
2227 | Q_D(QTextEdit); | - | ||||||
2228 | d->autoFormatting = features; | - | ||||||
2229 | } | - | ||||||
2230 | - | |||||||
2231 | /*! | - | ||||||
2232 | Convenience slot that inserts \a text at the current | - | ||||||
2233 | cursor position. | - | ||||||
2234 | - | |||||||
2235 | It is equivalent to | - | ||||||
2236 | - | |||||||
2237 | \snippet code/src_gui_widgets_qtextedit.cpp 1 | - | ||||||
2238 | */ | - | ||||||
2239 | void QTextEdit::insertPlainText(const QString &text) | - | ||||||
2240 | { | - | ||||||
2241 | Q_D(QTextEdit); | - | ||||||
2242 | d->control->insertPlainText(text); | - | ||||||
2243 | } | - | ||||||
2244 | - | |||||||
2245 | /*! | - | ||||||
2246 | Convenience slot that inserts \a text which is assumed to be of | - | ||||||
2247 | html formatting at the current cursor position. | - | ||||||
2248 | - | |||||||
2249 | It is equivalent to: | - | ||||||
2250 | - | |||||||
2251 | \snippet code/src_gui_widgets_qtextedit.cpp 2 | - | ||||||
2252 | - | |||||||
2253 | \note When using this function with a style sheet, the style sheet will | - | ||||||
2254 | only apply to the current block in the document. In order to apply a style | - | ||||||
2255 | sheet throughout a document, use QTextDocument::setDefaultStyleSheet() | - | ||||||
2256 | instead. | - | ||||||
2257 | */ | - | ||||||
2258 | #ifndef QT_NO_TEXTHTMLPARSER | - | ||||||
2259 | void QTextEdit::insertHtml(const QString &text) | - | ||||||
2260 | { | - | ||||||
2261 | Q_D(QTextEdit); | - | ||||||
2262 | d->control->insertHtml(text); | - | ||||||
2263 | } | - | ||||||
2264 | #endif // QT_NO_TEXTHTMLPARSER | - | ||||||
2265 | - | |||||||
2266 | /*! | - | ||||||
2267 | Scrolls the text edit so that the anchor with the given \a name is | - | ||||||
2268 | visible; does nothing if the \a name is empty, or is already | - | ||||||
2269 | visible, or isn't found. | - | ||||||
2270 | */ | - | ||||||
2271 | void QTextEdit::scrollToAnchor(const QString &name) | - | ||||||
2272 | { | - | ||||||
2273 | Q_D(QTextEdit); | - | ||||||
2274 | if (name.isEmpty()) | - | ||||||
2275 | return; | - | ||||||
2276 | - | |||||||
2277 | if (!isVisible()) { | - | ||||||
2278 | d->anchorToScrollToWhenVisible = name; | - | ||||||
2279 | return; | - | ||||||
2280 | } | - | ||||||
2281 | - | |||||||
2282 | QPointF p = d->control->anchorPosition(name); | - | ||||||
2283 | const int newPosition = qRound(p.y()); | - | ||||||
2284 | if ( d->vbar->maximum() < newPosition ) | - | ||||||
2285 | d->_q_adjustScrollbars(); | - | ||||||
2286 | d->vbar->setValue(newPosition); | - | ||||||
2287 | } | - | ||||||
2288 | - | |||||||
2289 | /*! | - | ||||||
2290 | \fn QTextEdit::zoomIn(int range) | - | ||||||
2291 | - | |||||||
2292 | Zooms in on the text by making the base font size \a range | - | ||||||
2293 | points larger and recalculating all font sizes to be the new size. | - | ||||||
2294 | This does not change the size of any images. | - | ||||||
2295 | - | |||||||
2296 | \sa zoomOut() | - | ||||||
2297 | */ | - | ||||||
2298 | void QTextEdit::zoomIn(int range) | - | ||||||
2299 | { | - | ||||||
2300 | zoomInF(range); | - | ||||||
2301 | } | - | ||||||
2302 | - | |||||||
2303 | /*! | - | ||||||
2304 | \fn QTextEdit::zoomOut(int range) | - | ||||||
2305 | - | |||||||
2306 | \overload | - | ||||||
2307 | - | |||||||
2308 | Zooms out on the text by making the base font size \a range points | - | ||||||
2309 | smaller and recalculating all font sizes to be the new size. This | - | ||||||
2310 | does not change the size of any images. | - | ||||||
2311 | - | |||||||
2312 | \sa zoomIn() | - | ||||||
2313 | */ | - | ||||||
2314 | void QTextEdit::zoomOut(int range) | - | ||||||
2315 | { | - | ||||||
2316 | zoomInF(-range); | - | ||||||
2317 | } | - | ||||||
2318 | - | |||||||
2319 | /*! | - | ||||||
2320 | \internal | - | ||||||
2321 | */ | - | ||||||
2322 | void QTextEdit::zoomInF(float range) | - | ||||||
2323 | { | - | ||||||
2324 | if (range == 0.f) | - | ||||||
2325 | return; | - | ||||||
2326 | QFont f = font(); | - | ||||||
2327 | const float newSize = f.pointSizeF() + range; | - | ||||||
2328 | if (newSize <= 0) | - | ||||||
2329 | return; | - | ||||||
2330 | f.setPointSizeF(newSize); | - | ||||||
2331 | setFont(f); | - | ||||||
2332 | } | - | ||||||
2333 | - | |||||||
2334 | /*! | - | ||||||
2335 | \since 4.2 | - | ||||||
2336 | Moves the cursor by performing the given \a operation. | - | ||||||
2337 | - | |||||||
2338 | If \a mode is QTextCursor::KeepAnchor, the cursor selects the text it moves over. | - | ||||||
2339 | This is the same effect that the user achieves when they hold down the Shift key | - | ||||||
2340 | and move the cursor with the cursor keys. | - | ||||||
2341 | - | |||||||
2342 | \sa QTextCursor::movePosition() | - | ||||||
2343 | */ | - | ||||||
2344 | void QTextEdit::moveCursor(QTextCursor::MoveOperation operation, QTextCursor::MoveMode mode) | - | ||||||
2345 | { | - | ||||||
2346 | Q_D(QTextEdit); | - | ||||||
2347 | d->control->moveCursor(operation, mode); | - | ||||||
2348 | } | - | ||||||
2349 | - | |||||||
2350 | /*! | - | ||||||
2351 | \since 4.2 | - | ||||||
2352 | Returns whether text can be pasted from the clipboard into the textedit. | - | ||||||
2353 | */ | - | ||||||
2354 | bool QTextEdit::canPaste() const | - | ||||||
2355 | { | - | ||||||
2356 | Q_D(const QTextEdit); | - | ||||||
2357 | return d->control->canPaste(); | - | ||||||
2358 | } | - | ||||||
2359 | - | |||||||
2360 | /*! | - | ||||||
2361 | \since 4.3 | - | ||||||
2362 | Convenience function to print the text edit's document to the given \a printer. This | - | ||||||
2363 | is equivalent to calling the print method on the document directly except that this | - | ||||||
2364 | function also supports QPrinter::Selection as print range. | - | ||||||
2365 | - | |||||||
2366 | \sa QTextDocument::print() | - | ||||||
2367 | */ | - | ||||||
2368 | #ifndef QT_NO_PRINTER | - | ||||||
2369 | void QTextEdit::print(QPagedPaintDevice *printer) const | - | ||||||
2370 | { | - | ||||||
2371 | Q_D(const QTextEdit); | - | ||||||
2372 | d->control->print(printer); | - | ||||||
2373 | } | - | ||||||
2374 | #endif | - | ||||||
2375 | - | |||||||
2376 | /*! \property QTextEdit::tabChangesFocus | - | ||||||
2377 | \brief whether \uicontrol Tab changes focus or is accepted as input | - | ||||||
2378 | - | |||||||
2379 | In some occasions text edits should not allow the user to input | - | ||||||
2380 | tabulators or change indentation using the \uicontrol Tab key, as this breaks | - | ||||||
2381 | the focus chain. The default is false. | - | ||||||
2382 | - | |||||||
2383 | */ | - | ||||||
2384 | - | |||||||
2385 | bool QTextEdit::tabChangesFocus() const | - | ||||||
2386 | { | - | ||||||
2387 | Q_D(const QTextEdit); | - | ||||||
2388 | return d->tabChangesFocus; | - | ||||||
2389 | } | - | ||||||
2390 | - | |||||||
2391 | void QTextEdit::setTabChangesFocus(bool b) | - | ||||||
2392 | { | - | ||||||
2393 | Q_D(QTextEdit); | - | ||||||
2394 | d->tabChangesFocus = b; | - | ||||||
2395 | } | - | ||||||
2396 | - | |||||||
2397 | /*! | - | ||||||
2398 | \property QTextEdit::documentTitle | - | ||||||
2399 | \brief the title of the document parsed from the text. | - | ||||||
2400 | - | |||||||
2401 | By default, for a newly-created, empty document, this property contains | - | ||||||
2402 | an empty string. | - | ||||||
2403 | */ | - | ||||||
2404 | - | |||||||
2405 | /*! | - | ||||||
2406 | \property QTextEdit::lineWrapMode | - | ||||||
2407 | \brief the line wrap mode | - | ||||||
2408 | - | |||||||
2409 | The default mode is WidgetWidth which causes words to be | - | ||||||
2410 | wrapped at the right edge of the text edit. Wrapping occurs at | - | ||||||
2411 | whitespace, keeping whole words intact. If you want wrapping to | - | ||||||
2412 | occur within words use setWordWrapMode(). If you set a wrap mode of | - | ||||||
2413 | FixedPixelWidth or FixedColumnWidth you should also call | - | ||||||
2414 | setLineWrapColumnOrWidth() with the width you want. | - | ||||||
2415 | - | |||||||
2416 | \sa lineWrapColumnOrWidth | - | ||||||
2417 | */ | - | ||||||
2418 | - | |||||||
2419 | QTextEdit::LineWrapMode QTextEdit::lineWrapMode() const | - | ||||||
2420 | { | - | ||||||
2421 | Q_D(const QTextEdit); | - | ||||||
2422 | return d->lineWrap; | - | ||||||
2423 | } | - | ||||||
2424 | - | |||||||
2425 | void QTextEdit::setLineWrapMode(LineWrapMode wrap) | - | ||||||
2426 | { | - | ||||||
2427 | Q_D(QTextEdit); | - | ||||||
2428 | if (d->lineWrap == wrap) | - | ||||||
2429 | return; | - | ||||||
2430 | d->lineWrap = wrap; | - | ||||||
2431 | d->updateDefaultTextOption(); | - | ||||||
2432 | d->relayoutDocument(); | - | ||||||
2433 | } | - | ||||||
2434 | - | |||||||
2435 | /*! | - | ||||||
2436 | \property QTextEdit::lineWrapColumnOrWidth | - | ||||||
2437 | \brief the position (in pixels or columns depending on the wrap mode) where text will be wrapped | - | ||||||
2438 | - | |||||||
2439 | If the wrap mode is FixedPixelWidth, the value is the number of | - | ||||||
2440 | pixels from the left edge of the text edit at which text should be | - | ||||||
2441 | wrapped. If the wrap mode is FixedColumnWidth, the value is the | - | ||||||
2442 | column number (in character columns) from the left edge of the | - | ||||||
2443 | text edit at which text should be wrapped. | - | ||||||
2444 | - | |||||||
2445 | By default, this property contains a value of 0. | - | ||||||
2446 | - | |||||||
2447 | \sa lineWrapMode | - | ||||||
2448 | */ | - | ||||||
2449 | - | |||||||
2450 | int QTextEdit::lineWrapColumnOrWidth() const | - | ||||||
2451 | { | - | ||||||
2452 | Q_D(const QTextEdit); | - | ||||||
2453 | return d->lineWrapColumnOrWidth; | - | ||||||
2454 | } | - | ||||||
2455 | - | |||||||
2456 | void QTextEdit::setLineWrapColumnOrWidth(int w) | - | ||||||
2457 | { | - | ||||||
2458 | Q_D(QTextEdit); | - | ||||||
2459 | d->lineWrapColumnOrWidth = w; | - | ||||||
2460 | d->relayoutDocument(); | - | ||||||
2461 | } | - | ||||||
2462 | - | |||||||
2463 | /*! | - | ||||||
2464 | \property QTextEdit::wordWrapMode | - | ||||||
2465 | \brief the mode QTextEdit will use when wrapping text by words | - | ||||||
2466 | - | |||||||
2467 | By default, this property is set to QTextOption::WrapAtWordBoundaryOrAnywhere. | - | ||||||
2468 | - | |||||||
2469 | \sa QTextOption::WrapMode | - | ||||||
2470 | */ | - | ||||||
2471 | - | |||||||
2472 | QTextOption::WrapMode QTextEdit::wordWrapMode() const | - | ||||||
2473 | { | - | ||||||
2474 | Q_D(const QTextEdit); | - | ||||||
2475 | return d->wordWrap; | - | ||||||
2476 | } | - | ||||||
2477 | - | |||||||
2478 | void QTextEdit::setWordWrapMode(QTextOption::WrapMode mode) | - | ||||||
2479 | { | - | ||||||
2480 | Q_D(QTextEdit); | - | ||||||
2481 | if (mode == d->wordWrap) | - | ||||||
2482 | return; | - | ||||||
2483 | d->wordWrap = mode; | - | ||||||
2484 | d->updateDefaultTextOption(); | - | ||||||
2485 | } | - | ||||||
2486 | - | |||||||
2487 | /*! | - | ||||||
2488 | Finds the next occurrence of the string, \a exp, using the given | - | ||||||
2489 | \a options. Returns \c true if \a exp was found and changes the | - | ||||||
2490 | cursor to select the match; otherwise returns \c false. | - | ||||||
2491 | */ | - | ||||||
2492 | bool QTextEdit::find(const QString &exp, QTextDocument::FindFlags options) | - | ||||||
2493 | { | - | ||||||
2494 | Q_D(QTextEdit); | - | ||||||
2495 | return d->control->find(exp, options); | - | ||||||
2496 | } | - | ||||||
2497 | - | |||||||
2498 | /*! | - | ||||||
2499 | \fn bool QTextEdit::find(const QRegExp &exp, QTextDocument::FindFlags options) | - | ||||||
2500 | - | |||||||
2501 | \since 5.3 | - | ||||||
2502 | \overload | - | ||||||
2503 | - | |||||||
2504 | Finds the next occurrence, matching the regular expression, \a exp, using the given | - | ||||||
2505 | \a options. The QTextDocument::FindCaseSensitively option is ignored for this overload, | - | ||||||
2506 | use QRegExp::caseSensitivity instead. | - | ||||||
2507 | - | |||||||
2508 | Returns \c true if a match was found and changes the cursor to select the match; | - | ||||||
2509 | otherwise returns \c false. | - | ||||||
2510 | */ | - | ||||||
2511 | #ifndef QT_NO_REGEXP | - | ||||||
2512 | bool QTextEdit::find(const QRegExp &exp, QTextDocument::FindFlags options) | - | ||||||
2513 | { | - | ||||||
2514 | Q_D(QTextEdit); | - | ||||||
2515 | return d->control->find(exp, options); | - | ||||||
2516 | } | - | ||||||
2517 | #endif | - | ||||||
2518 | - | |||||||
2519 | /*! | - | ||||||
2520 | \fn void QTextEdit::copyAvailable(bool yes) | - | ||||||
2521 | - | |||||||
2522 | This signal is emitted when text is selected or de-selected in the | - | ||||||
2523 | text edit. | - | ||||||
2524 | - | |||||||
2525 | When text is selected this signal will be emitted with \a yes set | - | ||||||
2526 | to true. If no text has been selected or if the selected text is | - | ||||||
2527 | de-selected this signal is emitted with \a yes set to false. | - | ||||||
2528 | - | |||||||
2529 | If \a yes is true then copy() can be used to copy the selection to | - | ||||||
2530 | the clipboard. If \a yes is false then copy() does nothing. | - | ||||||
2531 | - | |||||||
2532 | \sa selectionChanged() | - | ||||||
2533 | */ | - | ||||||
2534 | - | |||||||
2535 | /*! | - | ||||||
2536 | \fn void QTextEdit::currentCharFormatChanged(const QTextCharFormat &f) | - | ||||||
2537 | - | |||||||
2538 | This signal is emitted if the current character format has changed, for | - | ||||||
2539 | example caused by a change of the cursor position. | - | ||||||
2540 | - | |||||||
2541 | The new format is \a f. | - | ||||||
2542 | - | |||||||
2543 | \sa setCurrentCharFormat() | - | ||||||
2544 | */ | - | ||||||
2545 | - | |||||||
2546 | /*! | - | ||||||
2547 | \fn void QTextEdit::selectionChanged() | - | ||||||
2548 | - | |||||||
2549 | This signal is emitted whenever the selection changes. | - | ||||||
2550 | - | |||||||
2551 | \sa copyAvailable() | - | ||||||
2552 | */ | - | ||||||
2553 | - | |||||||
2554 | /*! | - | ||||||
2555 | \fn void QTextEdit::cursorPositionChanged() | - | ||||||
2556 | - | |||||||
2557 | This signal is emitted whenever the position of the | - | ||||||
2558 | cursor changed. | - | ||||||
2559 | */ | - | ||||||
2560 | - | |||||||
2561 | /*! | - | ||||||
2562 | \since 4.2 | - | ||||||
2563 | - | |||||||
2564 | Sets the text edit's \a text. The text can be plain text or HTML | - | ||||||
2565 | and the text edit will try to guess the right format. | - | ||||||
2566 | - | |||||||
2567 | Use setHtml() or setPlainText() directly to avoid text edit's guessing. | - | ||||||
2568 | - | |||||||
2569 | \sa toPlainText(), toHtml() | - | ||||||
2570 | */ | - | ||||||
2571 | void QTextEdit::setText(const QString &text) | - | ||||||
2572 | { | - | ||||||
2573 | Q_D(QTextEdit); | - | ||||||
2574 | Qt::TextFormat format = d->textFormat; | - | ||||||
2575 | if (d->textFormat == Qt::AutoText) | - | ||||||
2576 | format = Qt::mightBeRichText(text) ? Qt::RichText : Qt::PlainText; | - | ||||||
2577 | #ifndef QT_NO_TEXTHTMLPARSER | - | ||||||
2578 | if (format == Qt::RichText) | - | ||||||
2579 | setHtml(text); | - | ||||||
2580 | else | - | ||||||
2581 | #endif | - | ||||||
2582 | setPlainText(text); | - | ||||||
2583 | } | - | ||||||
2584 | - | |||||||
2585 | - | |||||||
2586 | /*! | - | ||||||
2587 | Appends a new paragraph with \a text to the end of the text edit. | - | ||||||
2588 | - | |||||||
2589 | \note The new paragraph appended will have the same character format and | - | ||||||
2590 | block format as the current paragraph, determined by the position of the cursor. | - | ||||||
2591 | - | |||||||
2592 | \sa currentCharFormat(), QTextCursor::blockFormat() | - | ||||||
2593 | */ | - | ||||||
2594 | - | |||||||
2595 | void QTextEdit::append(const QString &text) | - | ||||||
2596 | { | - | ||||||
2597 | Q_D(QTextEdit); | - | ||||||
2598 | const bool atBottom = isReadOnly() ? d->verticalOffset() >= d->vbar->maximum() : | - | ||||||
2599 | d->control->textCursor().atEnd(); | - | ||||||
2600 | d->control->append(text); | - | ||||||
2601 | if (atBottom) | - | ||||||
2602 | d->vbar->setValue(d->vbar->maximum()); | - | ||||||
2603 | } | - | ||||||
2604 | - | |||||||
2605 | /*! | - | ||||||
2606 | Ensures that the cursor is visible by scrolling the text edit if | - | ||||||
2607 | necessary. | - | ||||||
2608 | */ | - | ||||||
2609 | void QTextEdit::ensureCursorVisible() | - | ||||||
2610 | { | - | ||||||
2611 | Q_D(QTextEdit); | - | ||||||
2612 | d->control->ensureCursorVisible(); | - | ||||||
2613 | } | - | ||||||
2614 | - | |||||||
2615 | /*! | - | ||||||
2616 | \fn void QTextEdit::textChanged() | - | ||||||
2617 | - | |||||||
2618 | This signal is emitted whenever the document's content changes; for | - | ||||||
2619 | example, when text is inserted or deleted, or when formatting is applied. | - | ||||||
2620 | */ | - | ||||||
2621 | - | |||||||
2622 | /*! | - | ||||||
2623 | \fn void QTextEdit::undoAvailable(bool available) | - | ||||||
2624 | - | |||||||
2625 | This signal is emitted whenever undo operations become available | - | ||||||
2626 | (\a available is true) or unavailable (\a available is false). | - | ||||||
2627 | */ | - | ||||||
2628 | - | |||||||
2629 | /*! | - | ||||||
2630 | \fn void QTextEdit::redoAvailable(bool available) | - | ||||||
2631 | - | |||||||
2632 | This signal is emitted whenever redo operations become available | - | ||||||
2633 | (\a available is true) or unavailable (\a available is false). | - | ||||||
2634 | */ | - | ||||||
2635 | - | |||||||
2636 | #endif // QT_NO_TEXTEDIT | - | ||||||
2637 | - | |||||||
2638 | QT_END_NAMESPACE | - | ||||||
2639 | - | |||||||
2640 | #include "moc_qtextedit.cpp" | - | ||||||
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