1 | /* |
---|
2 | |
---|
3 | Copyright 2014 S. Razi Alavizadeh |
---|
4 | Copyright 2012-2015 Adam Reichold |
---|
5 | Copyright 2014 Dorian Scholz |
---|
6 | |
---|
7 | This file is part of qpdfview. |
---|
8 | |
---|
9 | qpdfview is free software: you can redistribute it and/or modify |
---|
10 | it under the terms of the GNU General Public License as published by |
---|
11 | the Free Software Foundation, either version 2 of the License, or |
---|
12 | (at your option) any later version. |
---|
13 | |
---|
14 | qpdfview is distributed in the hope that it will be useful, |
---|
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
17 | GNU General Public License for more details. |
---|
18 | |
---|
19 | You should have received a copy of the GNU General Public License |
---|
20 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
---|
21 | |
---|
22 | */ |
---|
23 | |
---|
24 | #include "miscellaneous.h" |
---|
25 | |
---|
26 | #include <QApplication> |
---|
27 | #include <QDebug> |
---|
28 | #include <QDialog> |
---|
29 | #include <QDialogButtonBox> |
---|
30 | #include <QLabel> |
---|
31 | #include <QMenu> |
---|
32 | #include <QMouseEvent> |
---|
33 | #include <QScrollBar> |
---|
34 | #include <QTimer> |
---|
35 | #include <QToolTip> |
---|
36 | #include <QVBoxLayout> |
---|
37 | |
---|
38 | #include "searchmodel.h" |
---|
39 | |
---|
40 | namespace |
---|
41 | { |
---|
42 | |
---|
43 | using namespace qpdfview; |
---|
44 | |
---|
45 | inline bool isPrintable(const QString& string) |
---|
46 | { |
---|
47 | foreach(QChar character, string) |
---|
48 | { |
---|
49 | if(!character.isPrint()) |
---|
50 | { |
---|
51 | return false; |
---|
52 | } |
---|
53 | } |
---|
54 | |
---|
55 | return true; |
---|
56 | } |
---|
57 | |
---|
58 | inline QModelIndex firstIndex(const QModelIndexList& indexes) |
---|
59 | { |
---|
60 | return !indexes.isEmpty() ? indexes.first() : QModelIndex(); |
---|
61 | } |
---|
62 | |
---|
63 | } // anonymous |
---|
64 | |
---|
65 | namespace qpdfview |
---|
66 | { |
---|
67 | |
---|
68 | GraphicsCompositionModeEffect::GraphicsCompositionModeEffect(QPainter::CompositionMode compositionMode, QObject* parent) : QGraphicsEffect(parent), |
---|
69 | m_compositionMode(compositionMode) |
---|
70 | { |
---|
71 | } |
---|
72 | |
---|
73 | void GraphicsCompositionModeEffect::draw(QPainter* painter) |
---|
74 | { |
---|
75 | painter->save(); |
---|
76 | |
---|
77 | painter->setCompositionMode(m_compositionMode); |
---|
78 | |
---|
79 | drawSource(painter); |
---|
80 | |
---|
81 | painter->restore(); |
---|
82 | } |
---|
83 | |
---|
84 | ProxyStyle::ProxyStyle() : QProxyStyle(), |
---|
85 | m_scrollableMenus(false) |
---|
86 | { |
---|
87 | } |
---|
88 | |
---|
89 | bool ProxyStyle::scrollableMenus() const |
---|
90 | { |
---|
91 | return m_scrollableMenus; |
---|
92 | } |
---|
93 | |
---|
94 | void ProxyStyle::setScrollableMenus(bool scrollableMenus) |
---|
95 | { |
---|
96 | m_scrollableMenus = scrollableMenus; |
---|
97 | } |
---|
98 | |
---|
99 | int ProxyStyle::styleHint(StyleHint hint, const QStyleOption* option, const QWidget* widget, QStyleHintReturn* returnData) const |
---|
100 | { |
---|
101 | if(m_scrollableMenus && hint == QStyle::SH_Menu_Scrollable) |
---|
102 | { |
---|
103 | return 1; |
---|
104 | } |
---|
105 | |
---|
106 | return QProxyStyle::styleHint(hint, option, widget, returnData); |
---|
107 | } |
---|
108 | |
---|
109 | SearchableMenu::SearchableMenu(const QString& title, QWidget* parent) : QMenu(title, parent), |
---|
110 | m_searchable(false), |
---|
111 | m_text() |
---|
112 | { |
---|
113 | } |
---|
114 | |
---|
115 | bool SearchableMenu::isSearchable() const |
---|
116 | { |
---|
117 | return m_searchable; |
---|
118 | } |
---|
119 | |
---|
120 | void SearchableMenu::setSearchable(bool searchable) |
---|
121 | { |
---|
122 | m_searchable = searchable; |
---|
123 | } |
---|
124 | |
---|
125 | void SearchableMenu::hideEvent(QHideEvent* event) |
---|
126 | { |
---|
127 | QMenu::hideEvent(event); |
---|
128 | |
---|
129 | if(m_searchable && !event->spontaneous()) |
---|
130 | { |
---|
131 | m_text = QString(); |
---|
132 | |
---|
133 | foreach(QAction* action, actions()) |
---|
134 | { |
---|
135 | action->setVisible(true); |
---|
136 | } |
---|
137 | } |
---|
138 | } |
---|
139 | |
---|
140 | void SearchableMenu::keyPressEvent(QKeyEvent* event) |
---|
141 | { |
---|
142 | if(!m_searchable) |
---|
143 | { |
---|
144 | QMenu::keyPressEvent(event); |
---|
145 | return; |
---|
146 | } |
---|
147 | |
---|
148 | const QString text = event->text(); |
---|
149 | |
---|
150 | if(!text.isEmpty() && isPrintable(text)) |
---|
151 | { |
---|
152 | m_text.append(text); |
---|
153 | } |
---|
154 | else if(event->key() == Qt::Key_Backspace || event->key() == Qt::Key_Delete) |
---|
155 | { |
---|
156 | m_text.chop(1); |
---|
157 | } |
---|
158 | else |
---|
159 | { |
---|
160 | QMenu::keyPressEvent(event); |
---|
161 | return; |
---|
162 | } |
---|
163 | |
---|
164 | setActiveAction(0); |
---|
165 | |
---|
166 | foreach(QAction* action, actions()) |
---|
167 | { |
---|
168 | if(!action->data().isNull()) // Modify only flagged actions |
---|
169 | { |
---|
170 | const bool visible = action->text().contains(m_text, Qt::CaseInsensitive); |
---|
171 | |
---|
172 | action->setVisible(visible); |
---|
173 | |
---|
174 | if(visible && activeAction() == 0) |
---|
175 | { |
---|
176 | setActiveAction(action); |
---|
177 | } |
---|
178 | } |
---|
179 | } |
---|
180 | |
---|
181 | QToolTip::showText(mapToGlobal(rect().topLeft()), tr("Search for '%1'...").arg(m_text), this); |
---|
182 | } |
---|
183 | |
---|
184 | TabBar::TabBar(QWidget* parent) : QTabBar(parent) |
---|
185 | { |
---|
186 | } |
---|
187 | |
---|
188 | QSize TabBar::tabSizeHint(int index) const |
---|
189 | { |
---|
190 | QSize size = QTabBar::tabSizeHint(index); |
---|
191 | |
---|
192 | const TabWidget* tabWidget = qobject_cast< TabWidget* >(parentWidget()); |
---|
193 | |
---|
194 | if(tabWidget != 0 && tabWidget->spreadTabs()) |
---|
195 | { |
---|
196 | switch(tabWidget->tabPosition()) |
---|
197 | { |
---|
198 | default: |
---|
199 | case QTabWidget::North: |
---|
200 | case QTabWidget::South: |
---|
201 | size.setWidth(qMax(width() / count(), size.width())); |
---|
202 | break; |
---|
203 | case QTabWidget::East: |
---|
204 | case QTabWidget::West: |
---|
205 | size.setHeight(qMax(height() / count(), size.height())); |
---|
206 | break; |
---|
207 | } |
---|
208 | } |
---|
209 | |
---|
210 | return size; |
---|
211 | } |
---|
212 | |
---|
213 | void TabBar::mousePressEvent(QMouseEvent* event) |
---|
214 | { |
---|
215 | QTabBar::mousePressEvent(event); |
---|
216 | |
---|
217 | if(event->button() == Qt::MidButton) |
---|
218 | { |
---|
219 | const int index = tabAt(event->pos()); |
---|
220 | |
---|
221 | if(index != -1) |
---|
222 | { |
---|
223 | emit tabCloseRequested(index); |
---|
224 | } |
---|
225 | } |
---|
226 | } |
---|
227 | |
---|
228 | TabWidget::TabWidget(QWidget* parent) : QTabWidget(parent), |
---|
229 | m_tabBarPolicy(TabBarAsNeeded), |
---|
230 | m_spreadTabs(false) |
---|
231 | { |
---|
232 | setTabBar(new TabBar(this)); |
---|
233 | |
---|
234 | tabBar()->setContextMenuPolicy(Qt::CustomContextMenu); |
---|
235 | |
---|
236 | connect(tabBar(), SIGNAL(customContextMenuRequested(QPoint)), SLOT(on_tabBar_customContextMenuRequested(QPoint))); |
---|
237 | } |
---|
238 | |
---|
239 | TabWidget::TabBarPolicy TabWidget::tabBarPolicy() const |
---|
240 | { |
---|
241 | return m_tabBarPolicy; |
---|
242 | } |
---|
243 | |
---|
244 | void TabWidget::setTabBarPolicy(TabWidget::TabBarPolicy tabBarPolicy) |
---|
245 | { |
---|
246 | m_tabBarPolicy = tabBarPolicy; |
---|
247 | |
---|
248 | switch(m_tabBarPolicy) |
---|
249 | { |
---|
250 | case TabBarAsNeeded: |
---|
251 | tabBar()->setVisible(count() > 1); |
---|
252 | break; |
---|
253 | case TabBarAlwaysOn: |
---|
254 | tabBar()->setVisible(true); |
---|
255 | break; |
---|
256 | case TabBarAlwaysOff: |
---|
257 | tabBar()->setVisible(false); |
---|
258 | break; |
---|
259 | } |
---|
260 | } |
---|
261 | |
---|
262 | bool TabWidget::spreadTabs() const |
---|
263 | { |
---|
264 | return m_spreadTabs; |
---|
265 | } |
---|
266 | |
---|
267 | void TabWidget::setSpreadTabs(bool spreadTabs) |
---|
268 | { |
---|
269 | if(m_spreadTabs != spreadTabs) |
---|
270 | { |
---|
271 | m_spreadTabs = spreadTabs; |
---|
272 | |
---|
273 | QResizeEvent resizeEvent(tabBar()->size(), tabBar()->size()); |
---|
274 | QApplication::sendEvent(tabBar(), &resizeEvent); |
---|
275 | } |
---|
276 | } |
---|
277 | |
---|
278 | void TabWidget::on_tabBar_customContextMenuRequested(const QPoint& pos) |
---|
279 | { |
---|
280 | emit tabContextMenuRequested(tabBar()->mapToGlobal(pos), tabBar()->tabAt(pos)); |
---|
281 | } |
---|
282 | |
---|
283 | void TabWidget::tabInserted(int index) |
---|
284 | { |
---|
285 | QTabWidget::tabInserted(index); |
---|
286 | |
---|
287 | if(m_tabBarPolicy == TabBarAsNeeded) |
---|
288 | { |
---|
289 | tabBar()->setVisible(count() > 1); |
---|
290 | } |
---|
291 | } |
---|
292 | |
---|
293 | void TabWidget::tabRemoved(int index) |
---|
294 | { |
---|
295 | QTabWidget::tabRemoved(index); |
---|
296 | |
---|
297 | if(m_tabBarPolicy == TabBarAsNeeded) |
---|
298 | { |
---|
299 | tabBar()->setVisible(count() > 1); |
---|
300 | } |
---|
301 | } |
---|
302 | |
---|
303 | TreeView::TreeView(int expansionRole, QWidget* parent) : QTreeView(parent), |
---|
304 | m_expansionRole(expansionRole) |
---|
305 | { |
---|
306 | connect(this, SIGNAL(expanded(QModelIndex)), SLOT(on_expanded(QModelIndex))); |
---|
307 | connect(this, SIGNAL(collapsed(QModelIndex)), SLOT(on_collapsed(QModelIndex))); |
---|
308 | } |
---|
309 | |
---|
310 | void TreeView::expandAbove(const QModelIndex& child) |
---|
311 | { |
---|
312 | for(QModelIndex index = child.parent(); index.isValid(); index = index.parent()) |
---|
313 | { |
---|
314 | expand(index); |
---|
315 | } |
---|
316 | } |
---|
317 | |
---|
318 | void TreeView::expandAll(const QModelIndex& index) |
---|
319 | { |
---|
320 | if(index.isValid()) |
---|
321 | { |
---|
322 | if(!isExpanded(index)) |
---|
323 | { |
---|
324 | expand(index); |
---|
325 | } |
---|
326 | |
---|
327 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
328 | { |
---|
329 | expandAll(index.child(row, 0)); |
---|
330 | } |
---|
331 | } |
---|
332 | else |
---|
333 | { |
---|
334 | QTreeView::expandAll(); |
---|
335 | } |
---|
336 | } |
---|
337 | |
---|
338 | void TreeView::collapseAll(const QModelIndex& index) |
---|
339 | { |
---|
340 | if(index.isValid()) |
---|
341 | { |
---|
342 | if(isExpanded(index)) |
---|
343 | { |
---|
344 | collapse(index); |
---|
345 | } |
---|
346 | |
---|
347 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
348 | { |
---|
349 | collapseAll(index.child(row, 0)); |
---|
350 | } |
---|
351 | } |
---|
352 | else |
---|
353 | { |
---|
354 | QTreeView::collapseAll(); |
---|
355 | } |
---|
356 | } |
---|
357 | |
---|
358 | int TreeView::expandedDepth(const QModelIndex& index) |
---|
359 | { |
---|
360 | if(index.isValid()) |
---|
361 | { |
---|
362 | if(!isExpanded(index) || !model()->hasChildren(index)) |
---|
363 | { |
---|
364 | return 0; |
---|
365 | } |
---|
366 | |
---|
367 | int depth = 0; |
---|
368 | |
---|
369 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
370 | { |
---|
371 | depth = qMax(depth, expandedDepth(index.child(row, 0))); |
---|
372 | } |
---|
373 | |
---|
374 | return 1 + depth; |
---|
375 | } |
---|
376 | else |
---|
377 | { |
---|
378 | int depth = 0; |
---|
379 | |
---|
380 | for(int row = 0, rowCount = model()->rowCount(); row < rowCount; ++row) |
---|
381 | { |
---|
382 | depth = qMax(depth, expandedDepth(model()->index(row, 0))); |
---|
383 | } |
---|
384 | |
---|
385 | return depth; |
---|
386 | } |
---|
387 | } |
---|
388 | |
---|
389 | void TreeView::expandToDepth(const QModelIndex& index, int depth) |
---|
390 | { |
---|
391 | if(index.isValid()) |
---|
392 | { |
---|
393 | if(depth > 0) |
---|
394 | { |
---|
395 | if(!isExpanded(index)) |
---|
396 | { |
---|
397 | expand(index); |
---|
398 | } |
---|
399 | } |
---|
400 | |
---|
401 | if(depth > 1) |
---|
402 | { |
---|
403 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
404 | { |
---|
405 | expandToDepth(index.child(row, 0), depth - 1); |
---|
406 | } |
---|
407 | } |
---|
408 | } |
---|
409 | else |
---|
410 | { |
---|
411 | for(int row = 0, rowCount = model()->rowCount(); row < rowCount; ++row) |
---|
412 | { |
---|
413 | expandToDepth(model()->index(row, 0), depth); |
---|
414 | } |
---|
415 | } |
---|
416 | } |
---|
417 | |
---|
418 | void TreeView::collapseFromDepth(const QModelIndex& index, int depth) |
---|
419 | { |
---|
420 | if(index.isValid()) |
---|
421 | { |
---|
422 | if(depth <= 0) |
---|
423 | { |
---|
424 | if(isExpanded(index)) |
---|
425 | { |
---|
426 | collapse(index); |
---|
427 | } |
---|
428 | } |
---|
429 | |
---|
430 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
431 | { |
---|
432 | collapseFromDepth(index.child(row, 0), depth - 1); |
---|
433 | } |
---|
434 | } |
---|
435 | else |
---|
436 | { |
---|
437 | for(int row = 0, rowCount = model()->rowCount(); row < rowCount; ++row) |
---|
438 | { |
---|
439 | collapseFromDepth(model()->index(row, 0), depth); |
---|
440 | } |
---|
441 | } |
---|
442 | } |
---|
443 | |
---|
444 | void TreeView::restoreExpansion(const QModelIndex& index) |
---|
445 | { |
---|
446 | if(index.isValid()) |
---|
447 | { |
---|
448 | const bool expanded = index.data(m_expansionRole).toBool(); |
---|
449 | |
---|
450 | if(isExpanded(index) != expanded) |
---|
451 | { |
---|
452 | setExpanded(index, expanded); |
---|
453 | } |
---|
454 | } |
---|
455 | |
---|
456 | for(int row = 0, rowCount = model()->rowCount(index); row < rowCount; ++row) |
---|
457 | { |
---|
458 | restoreExpansion(model()->index(row, 0, index)); |
---|
459 | } |
---|
460 | } |
---|
461 | |
---|
462 | void TreeView::keyPressEvent(QKeyEvent* event) |
---|
463 | { |
---|
464 | const bool verticalKeys = event->key() == Qt::Key_Up || event->key() == Qt::Key_Down; |
---|
465 | const bool horizontalKeys = event->key() == Qt::Key_Left || event->key() == Qt::Key_Right; |
---|
466 | |
---|
467 | const QModelIndex selection = firstIndex(selectedIndexes()); |
---|
468 | |
---|
469 | // If Shift is pressed, the view is scrolled up or down. |
---|
470 | if(event->modifiers().testFlag(Qt::ShiftModifier) && verticalKeys) |
---|
471 | { |
---|
472 | QScrollBar* scrollBar = verticalScrollBar(); |
---|
473 | |
---|
474 | if(event->key() == Qt::Key_Up && scrollBar->value() > scrollBar->minimum()) |
---|
475 | { |
---|
476 | scrollBar->triggerAction(QAbstractSlider::SliderSingleStepSub); |
---|
477 | |
---|
478 | event->accept(); |
---|
479 | return; |
---|
480 | } |
---|
481 | else if(event->key() == Qt::Key_Down && scrollBar->value() < scrollBar->maximum()) |
---|
482 | { |
---|
483 | scrollBar->triggerAction(QAbstractSlider::SliderSingleStepAdd); |
---|
484 | |
---|
485 | event->accept(); |
---|
486 | return; |
---|
487 | } |
---|
488 | } |
---|
489 | |
---|
490 | // If Control is pressed, all children of the selected item are expanded or collapsed. |
---|
491 | if(event->modifiers().testFlag(Qt::ControlModifier) && horizontalKeys) |
---|
492 | { |
---|
493 | if(event->key() == Qt::Key_Left) |
---|
494 | { |
---|
495 | collapseAll(selection); |
---|
496 | } |
---|
497 | else if(event->key() == Qt::Key_Right) |
---|
498 | { |
---|
499 | expandAll(selection); |
---|
500 | } |
---|
501 | |
---|
502 | event->accept(); |
---|
503 | return; |
---|
504 | } |
---|
505 | |
---|
506 | // If Shift is pressed, one level of children of the selected item are expanded or collapsed. |
---|
507 | if(event->modifiers().testFlag(Qt::ShiftModifier) && horizontalKeys) |
---|
508 | { |
---|
509 | const int depth = expandedDepth(selection); |
---|
510 | |
---|
511 | if(event->key() == Qt::Key_Left) |
---|
512 | { |
---|
513 | collapseFromDepth(selection, depth - 1); |
---|
514 | } |
---|
515 | else if(event->key() == Qt::Key_Right) |
---|
516 | { |
---|
517 | expandToDepth(selection, depth + 1); |
---|
518 | } |
---|
519 | |
---|
520 | event->accept(); |
---|
521 | return; |
---|
522 | } |
---|
523 | |
---|
524 | QTreeView::keyPressEvent(event); |
---|
525 | } |
---|
526 | |
---|
527 | void TreeView::wheelEvent(QWheelEvent* event) |
---|
528 | { |
---|
529 | const QModelIndex selection = firstIndex(selectedIndexes()); |
---|
530 | |
---|
531 | // If Control is pressed, expand or collapse the selected entry. |
---|
532 | if(event->modifiers().testFlag(Qt::ControlModifier) && selection.isValid()) |
---|
533 | { |
---|
534 | if(event->delta() > 0) |
---|
535 | { |
---|
536 | collapse(selection); |
---|
537 | } |
---|
538 | else |
---|
539 | { |
---|
540 | expand(selection); |
---|
541 | } |
---|
542 | |
---|
543 | // Fall through when Shift is also pressed. |
---|
544 | if(!event->modifiers().testFlag(Qt::ShiftModifier)) |
---|
545 | { |
---|
546 | event->accept(); |
---|
547 | return; |
---|
548 | } |
---|
549 | } |
---|
550 | |
---|
551 | // If Shift is pressed, move the selected entry up and down. |
---|
552 | if(event->modifiers().testFlag(Qt::ShiftModifier) && selection.isValid()) |
---|
553 | { |
---|
554 | QModelIndex sibling; |
---|
555 | |
---|
556 | if(event->delta() > 0) |
---|
557 | { |
---|
558 | sibling = indexAbove(selection); |
---|
559 | } |
---|
560 | else |
---|
561 | { |
---|
562 | sibling = indexBelow(selection); |
---|
563 | } |
---|
564 | |
---|
565 | if(sibling.isValid()) |
---|
566 | { |
---|
567 | setCurrentIndex(sibling); |
---|
568 | } |
---|
569 | |
---|
570 | event->accept(); |
---|
571 | return; |
---|
572 | } |
---|
573 | |
---|
574 | QTreeView::wheelEvent(event); |
---|
575 | } |
---|
576 | |
---|
577 | void TreeView::contextMenuEvent(QContextMenuEvent* event) |
---|
578 | { |
---|
579 | QTreeView::contextMenuEvent(event); |
---|
580 | |
---|
581 | if(!event->isAccepted()) |
---|
582 | { |
---|
583 | QMenu menu; |
---|
584 | |
---|
585 | const QAction* expandAllAction = menu.addAction(tr("&Expand all")); |
---|
586 | const QAction* collapseAllAction = menu.addAction(tr("&Collapse all")); |
---|
587 | |
---|
588 | const QAction* action = menu.exec(event->globalPos()); |
---|
589 | |
---|
590 | if(action == expandAllAction) |
---|
591 | { |
---|
592 | expandAll(indexAt(event->pos())); |
---|
593 | } |
---|
594 | else if(action == collapseAllAction) |
---|
595 | { |
---|
596 | collapseAll(indexAt(event->pos())); |
---|
597 | } |
---|
598 | } |
---|
599 | } |
---|
600 | |
---|
601 | void TreeView::on_expanded(const QModelIndex& index) |
---|
602 | { |
---|
603 | model()->setData(index, true, m_expansionRole); |
---|
604 | } |
---|
605 | |
---|
606 | void TreeView::on_collapsed(const QModelIndex& index) |
---|
607 | { |
---|
608 | model()->setData(index, false, m_expansionRole); |
---|
609 | } |
---|
610 | |
---|
611 | LineEdit::LineEdit(QWidget* parent) : QLineEdit(parent) |
---|
612 | { |
---|
613 | } |
---|
614 | |
---|
615 | void LineEdit::mousePressEvent(QMouseEvent* event) |
---|
616 | { |
---|
617 | QLineEdit::mousePressEvent(event); |
---|
618 | |
---|
619 | selectAll(); |
---|
620 | } |
---|
621 | |
---|
622 | ComboBox::ComboBox(QWidget* parent) : QComboBox(parent) |
---|
623 | { |
---|
624 | setLineEdit(new LineEdit(this)); |
---|
625 | } |
---|
626 | |
---|
627 | SpinBox::SpinBox(QWidget* parent) : QSpinBox(parent) |
---|
628 | { |
---|
629 | setLineEdit(new LineEdit(this)); |
---|
630 | } |
---|
631 | |
---|
632 | void SpinBox::keyPressEvent(QKeyEvent* event) |
---|
633 | { |
---|
634 | QSpinBox::keyPressEvent(event); |
---|
635 | |
---|
636 | if(event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) |
---|
637 | { |
---|
638 | emit returnPressed(); |
---|
639 | } |
---|
640 | } |
---|
641 | |
---|
642 | MappingSpinBox::MappingSpinBox(TextValueMapper* mapper, QWidget* parent) : SpinBox(parent), |
---|
643 | m_mapper(mapper) |
---|
644 | { |
---|
645 | } |
---|
646 | |
---|
647 | QString MappingSpinBox::textFromValue(int val) const |
---|
648 | { |
---|
649 | bool ok = false; |
---|
650 | QString text = m_mapper->textFromValue(val, ok); |
---|
651 | |
---|
652 | if(!ok) |
---|
653 | { |
---|
654 | text = SpinBox::textFromValue(val); |
---|
655 | } |
---|
656 | |
---|
657 | return text; |
---|
658 | } |
---|
659 | |
---|
660 | int MappingSpinBox::valueFromText(const QString& text) const |
---|
661 | { |
---|
662 | bool ok = false; |
---|
663 | int val = m_mapper->valueFromText(text, ok); |
---|
664 | |
---|
665 | if(!ok) |
---|
666 | { |
---|
667 | val = SpinBox::valueFromText(text); |
---|
668 | } |
---|
669 | |
---|
670 | return val; |
---|
671 | } |
---|
672 | |
---|
673 | QValidator::State MappingSpinBox::validate(QString& input, int& pos) const |
---|
674 | { |
---|
675 | Q_UNUSED(input); |
---|
676 | Q_UNUSED(pos); |
---|
677 | |
---|
678 | return QValidator::Acceptable; |
---|
679 | } |
---|
680 | |
---|
681 | int getMappedNumber(MappingSpinBox::TextValueMapper* mapper, |
---|
682 | QWidget* parent, const QString& title, const QString& caption, |
---|
683 | int value, int min, int max, bool* ok, Qt::WindowFlags flags) |
---|
684 | { |
---|
685 | QDialog* dialog = new QDialog(parent, flags | Qt::MSWindowsFixedSizeDialogHint); |
---|
686 | dialog->setWindowTitle(title); |
---|
687 | |
---|
688 | QLabel* label = new QLabel(dialog); |
---|
689 | label->setText(caption); |
---|
690 | |
---|
691 | MappingSpinBox* mappingSpinBox = new MappingSpinBox(mapper, dialog); |
---|
692 | mappingSpinBox->setRange(min, max); |
---|
693 | mappingSpinBox->setValue(value); |
---|
694 | |
---|
695 | QDialogButtonBox* dialogButtonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, dialog); |
---|
696 | QObject::connect(dialogButtonBox, SIGNAL(accepted()), dialog, SLOT(accept())); |
---|
697 | QObject::connect(dialogButtonBox, SIGNAL(rejected()), dialog, SLOT(reject())); |
---|
698 | |
---|
699 | dialog->setLayout(new QVBoxLayout(dialog)); |
---|
700 | dialog->layout()->addWidget(label); |
---|
701 | dialog->layout()->addWidget(mappingSpinBox); |
---|
702 | dialog->layout()->addWidget(dialogButtonBox); |
---|
703 | |
---|
704 | dialog->setFocusProxy(mappingSpinBox); |
---|
705 | |
---|
706 | const int dialogResult = dialog->exec(); |
---|
707 | const int number = mappingSpinBox->value(); |
---|
708 | |
---|
709 | delete dialog; |
---|
710 | |
---|
711 | if(ok) |
---|
712 | { |
---|
713 | *ok = dialogResult == QDialog::Accepted; |
---|
714 | } |
---|
715 | |
---|
716 | return number; |
---|
717 | } |
---|
718 | |
---|
719 | ProgressLineEdit::ProgressLineEdit(QWidget* parent) : QLineEdit(parent), |
---|
720 | m_progress(0) |
---|
721 | { |
---|
722 | } |
---|
723 | |
---|
724 | int ProgressLineEdit::progress() const |
---|
725 | { |
---|
726 | return m_progress; |
---|
727 | } |
---|
728 | |
---|
729 | void ProgressLineEdit::setProgress(int progress) |
---|
730 | { |
---|
731 | if(m_progress != progress && progress >= 0 && progress <= 100) |
---|
732 | { |
---|
733 | m_progress = progress; |
---|
734 | |
---|
735 | update(); |
---|
736 | } |
---|
737 | } |
---|
738 | |
---|
739 | void ProgressLineEdit::paintEvent(QPaintEvent* event) |
---|
740 | { |
---|
741 | QLineEdit::paintEvent(event); |
---|
742 | |
---|
743 | QPainter painter(this); |
---|
744 | |
---|
745 | QRect highlightedRect = rect(); |
---|
746 | highlightedRect.setWidth(m_progress * highlightedRect.width() / 100); |
---|
747 | |
---|
748 | painter.setCompositionMode(QPainter::CompositionMode_Multiply); |
---|
749 | painter.fillRect(highlightedRect, palette().highlight()); |
---|
750 | } |
---|
751 | |
---|
752 | void ProgressLineEdit::keyPressEvent(QKeyEvent* event) |
---|
753 | { |
---|
754 | QLineEdit::keyPressEvent(event); |
---|
755 | |
---|
756 | if(event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) |
---|
757 | { |
---|
758 | emit returnPressed(event->modifiers()); |
---|
759 | } |
---|
760 | } |
---|
761 | |
---|
762 | SearchLineEdit::SearchLineEdit(QWidget* parent) : ProgressLineEdit(parent) |
---|
763 | { |
---|
764 | m_timer = new QTimer(this); |
---|
765 | |
---|
766 | m_timer->setInterval(2000); |
---|
767 | m_timer->setSingleShot(true); |
---|
768 | |
---|
769 | connect(this, SIGNAL(textEdited(QString)), m_timer, SLOT(start())); |
---|
770 | connect(this, SIGNAL(returnPressed(Qt::KeyboardModifiers)), SLOT(on_returnPressed(Qt::KeyboardModifiers))); |
---|
771 | connect(m_timer, SIGNAL(timeout()), SLOT(on_timeout())); |
---|
772 | } |
---|
773 | |
---|
774 | void SearchLineEdit::startSearch() |
---|
775 | { |
---|
776 | QTimer::singleShot(0, this, SLOT(on_timeout())); |
---|
777 | } |
---|
778 | |
---|
779 | void SearchLineEdit::startTimer() |
---|
780 | { |
---|
781 | m_timer->start(); |
---|
782 | } |
---|
783 | |
---|
784 | void SearchLineEdit::stopTimer() |
---|
785 | { |
---|
786 | m_timer->stop(); |
---|
787 | } |
---|
788 | |
---|
789 | void SearchLineEdit::on_timeout() |
---|
790 | { |
---|
791 | emit searchInitiated(text()); |
---|
792 | } |
---|
793 | |
---|
794 | void SearchLineEdit::on_returnPressed(const Qt::KeyboardModifiers& modifiers) |
---|
795 | { |
---|
796 | stopTimer(); |
---|
797 | |
---|
798 | emit searchInitiated(text(), modifiers == Qt::ShiftModifier); |
---|
799 | } |
---|
800 | |
---|
801 | } // qpdfview |
---|