0
+ − 1 /****************************************************************************
+ − 2 **
+ − 3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ − 4 ** All rights reserved.
+ − 5 ** Contact: Nokia Corporation (qt-info@nokia.com)
+ − 6 **
+ − 7 ** This file is part of the QtGui module of the Qt Toolkit.
+ − 8 **
+ − 9 ** $QT_BEGIN_LICENSE:LGPL$
+ − 10 ** No Commercial Usage
+ − 11 ** This file contains pre-release code and may not be distributed.
+ − 12 ** You may use this file in accordance with the terms and conditions
+ − 13 ** contained in the Technology Preview License Agreement accompanying
+ − 14 ** this package.
+ − 15 **
+ − 16 ** GNU Lesser General Public License Usage
+ − 17 ** Alternatively, this file may be used under the terms of the GNU Lesser
+ − 18 ** General Public License version 2.1 as published by the Free Software
+ − 19 ** Foundation and appearing in the file LICENSE.LGPL included in the
+ − 20 ** packaging of this file. Please review the following information to
+ − 21 ** ensure the GNU Lesser General Public License version 2.1 requirements
+ − 22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+ − 23 **
+ − 24 ** In addition, as a special exception, Nokia gives you certain additional
+ − 25 ** rights. These rights are described in the Nokia Qt LGPL Exception
+ − 26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+ − 27 **
+ − 28 ** If you have questions regarding the use of this file, please contact
+ − 29 ** Nokia at qt-info@nokia.com.
+ − 30 **
+ − 31 **
+ − 32 **
+ − 33 **
+ − 34 **
+ − 35 **
+ − 36 **
+ − 37 **
+ − 38 ** $QT_END_LICENSE$
+ − 39 **
+ − 40 ****************************************************************************/
+ − 41
+ − 42 #include "qcombobox.h"
+ − 43
+ − 44 #ifndef QT_NO_COMBOBOX
+ − 45 #include <qstylepainter.h>
+ − 46 #include <qlineedit.h>
+ − 47 #include <qapplication.h>
+ − 48 #include <qdesktopwidget.h>
+ − 49 #include <qlistview.h>
+ − 50 #include <qtableview.h>
+ − 51 #include <qitemdelegate.h>
+ − 52 #include <qmap.h>
+ − 53 #include <qmenu.h>
+ − 54 #include <qevent.h>
+ − 55 #include <qlayout.h>
+ − 56 #include <qscrollbar.h>
+ − 57 #include <qtreeview.h>
+ − 58 #include <qheaderview.h>
+ − 59 #ifndef QT_NO_IM
+ − 60 #include "qinputcontext.h"
+ − 61 #endif
+ − 62 #include <private/qapplication_p.h>
+ − 63 #include <private/qcombobox_p.h>
+ − 64 #include <private/qabstractitemmodel_p.h>
+ − 65 #include <private/qabstractscrollarea_p.h>
+ − 66 #include <private/qsoftkeymanager_p.h>
+ − 67 #include <qdebug.h>
+ − 68 #ifdef Q_WS_X11
+ − 69 #include <private/qt_x11_p.h>
+ − 70 #endif
+ − 71 #if defined(Q_WS_MAC) && !defined(QT_NO_EFFECTS) && !defined(QT_NO_STYLE_MAC)
+ − 72 #include <private/qcore_mac_p.h>
+ − 73 #include <QMacStyle>
+ − 74 #include <private/qt_cocoa_helpers_mac_p.h>
+ − 75 #endif
+ − 76 #ifndef QT_NO_EFFECTS
+ − 77 # include <private/qeffects_p.h>
+ − 78 #endif
+ − 79 QT_BEGIN_NAMESPACE
+ − 80
+ − 81 QComboBoxPrivate::QComboBoxPrivate()
+ − 82 : QWidgetPrivate(),
+ − 83 model(0),
+ − 84 lineEdit(0),
+ − 85 container(0),
+ − 86 insertPolicy(QComboBox::InsertAtBottom),
+ − 87 sizeAdjustPolicy(QComboBox::AdjustToContentsOnFirstShow),
+ − 88 minimumContentsLength(0),
+ − 89 shownOnce(false),
+ − 90 autoCompletion(true),
+ − 91 duplicatesEnabled(false),
+ − 92 frame(true),
+ − 93 maxVisibleItems(10),
+ − 94 maxCount(INT_MAX),
+ − 95 modelColumn(0),
+ − 96 inserting(false),
+ − 97 arrowState(QStyle::State_None),
+ − 98 hoverControl(QStyle::SC_None),
+ − 99 autoCompletionCaseSensitivity(Qt::CaseInsensitive),
+ − 100 indexBeforeChange(-1)
+ − 101 #ifndef QT_NO_COMPLETER
+ − 102 , completer(0)
+ − 103 #endif
+ − 104 {
+ − 105 }
+ − 106
+ − 107 QStyleOptionMenuItem QComboMenuDelegate::getStyleOption(const QStyleOptionViewItem &option,
+ − 108 const QModelIndex &index) const
+ − 109 {
+ − 110 QStyleOptionMenuItem menuOption;
+ − 111 menuOption.palette = option.palette.resolve(QApplication::palette("QMenu"));
+ − 112 menuOption.state = QStyle::State_None;
+ − 113 if (mCombo->window()->isActiveWindow())
+ − 114 menuOption.state = QStyle::State_Active;
+ − 115 if ((option.state & QStyle::State_Enabled) && (index.model()->flags(index) & Qt::ItemIsEnabled))
+ − 116 menuOption.state |= QStyle::State_Enabled;
+ − 117 else
+ − 118 menuOption.palette.setCurrentColorGroup(QPalette::Disabled);
+ − 119 if (option.state & QStyle::State_Selected)
+ − 120 menuOption.state |= QStyle::State_Selected;
+ − 121 menuOption.checkType = QStyleOptionMenuItem::NonExclusive;
+ − 122 menuOption.checked = mCombo->currentIndex() == index.row();
+ − 123 if (QComboBoxDelegate::isSeparator(index))
+ − 124 menuOption.menuItemType = QStyleOptionMenuItem::Separator;
+ − 125 else
+ − 126 menuOption.menuItemType = QStyleOptionMenuItem::Normal;
+ − 127
+ − 128 QVariant variant = index.model()->data(index, Qt::DecorationRole);
+ − 129 switch (variant.type()) {
+ − 130 case QVariant::Icon:
+ − 131 menuOption.icon = qvariant_cast<QIcon>(variant);
+ − 132 break;
+ − 133 case QVariant::Color: {
+ − 134 static QPixmap pixmap(option.decorationSize);
+ − 135 pixmap.fill(qvariant_cast<QColor>(variant));
+ − 136 menuOption.icon = pixmap;
+ − 137 break; }
+ − 138 default:
+ − 139 menuOption.icon = qvariant_cast<QPixmap>(variant);
+ − 140 break;
+ − 141 }
+ − 142
+ − 143 menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
+ − 144 .replace(QLatin1Char('&'), QLatin1String("&&"));
+ − 145 menuOption.tabWidth = 0;
+ − 146 menuOption.maxIconWidth = option.decorationSize.width() + 4;
+ − 147 menuOption.menuRect = option.rect;
+ − 148 menuOption.rect = option.rect;
+ − 149
+ − 150 // Make sure fonts set on the combo box also overrides the font for the popup menu.
+ − 151 if (mCombo->testAttribute(Qt::WA_SetFont)
+ − 152 || mCombo->testAttribute(Qt::WA_MacSmallSize)
+ − 153 || mCombo->testAttribute(Qt::WA_MacMiniSize)
+ − 154 || mCombo->font() != qt_app_fonts_hash()->value("QComboBox", QFont()))
+ − 155 menuOption.font = mCombo->font();
+ − 156 else
+ − 157 menuOption.font = qt_app_fonts_hash()->value("QComboMenuItem", mCombo->font());
+ − 158
+ − 159 menuOption.fontMetrics = QFontMetrics(menuOption.font);
+ − 160
+ − 161 return menuOption;
+ − 162 }
+ − 163
+ − 164 #ifdef QT_KEYPAD_NAVIGATION
+ − 165 void QComboBoxPrivate::_q_completerActivated()
+ − 166 {
+ − 167 Q_Q(QComboBox);
+ − 168 if ( QApplication::keypadNavigationEnabled()
+ − 169 && q->isEditable()
+ − 170 && q->completer()
+ − 171 && q->completer()->completionMode() == QCompleter::UnfilteredPopupCompletion ) {
+ − 172 q->setEditFocus(false);
+ − 173 }
+ − 174 }
+ − 175 #endif
+ − 176
+ − 177 void QComboBoxPrivate::updateArrow(QStyle::StateFlag state)
+ − 178 {
+ − 179 Q_Q(QComboBox);
+ − 180 if (arrowState == state)
+ − 181 return;
+ − 182 arrowState = state;
+ − 183 QStyleOptionComboBox opt;
+ − 184 q->initStyleOption(&opt);
+ − 185 q->update(q->style()->subControlRect(QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxArrow, q));
+ − 186 }
+ − 187
+ − 188 void QComboBoxPrivate::_q_modelReset()
+ − 189 {
+ − 190 Q_Q(QComboBox);
+ − 191 if (lineEdit) {
+ − 192 lineEdit->setText(QString());
+ − 193 updateLineEditGeometry();
+ − 194 }
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+ − 195 if (currentIndex.row() != indexBeforeChange)
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+ − 196 _q_emitCurrentIndexChanged(currentIndex);
0
+ − 197 q->update();
+ − 198 }
+ − 199
+ − 200 void QComboBoxPrivate::_q_modelDestroyed()
+ − 201 {
+ − 202 model = QAbstractItemModelPrivate::staticEmptyModel();
+ − 203 }
+ − 204
+ − 205
+ − 206 //Windows and KDE allows menus to cover the taskbar, while GNOME and Mac don't
+ − 207 QRect QComboBoxPrivate::popupGeometry(int screen) const
+ − 208 {
+ − 209 #ifdef Q_WS_WIN
+ − 210 return QApplication::desktop()->screenGeometry(screen);
+ − 211 #elif defined Q_WS_X11
+ − 212 if (X11->desktopEnvironment == DE_KDE)
+ − 213 return QApplication::desktop()->screenGeometry(screen);
+ − 214 else
+ − 215 return QApplication::desktop()->availableGeometry(screen);
+ − 216 #else
+ − 217 return QApplication::desktop()->availableGeometry(screen);
+ − 218 #endif
+ − 219 }
+ − 220
+ − 221 bool QComboBoxPrivate::updateHoverControl(const QPoint &pos)
+ − 222 {
+ − 223
+ − 224 Q_Q(QComboBox);
+ − 225 QRect lastHoverRect = hoverRect;
+ − 226 QStyle::SubControl lastHoverControl = hoverControl;
+ − 227 bool doesHover = q->testAttribute(Qt::WA_Hover);
+ − 228 if (lastHoverControl != newHoverControl(pos) && doesHover) {
+ − 229 q->update(lastHoverRect);
+ − 230 q->update(hoverRect);
+ − 231 return true;
+ − 232 }
+ − 233 return !doesHover;
+ − 234 }
+ − 235
+ − 236 QStyle::SubControl QComboBoxPrivate::newHoverControl(const QPoint &pos)
+ − 237 {
+ − 238 Q_Q(QComboBox);
+ − 239 QStyleOptionComboBox opt;
+ − 240 q->initStyleOption(&opt);
+ − 241 opt.subControls = QStyle::SC_All;
+ − 242 hoverControl = q->style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt, pos, q);
+ − 243 hoverRect = (hoverControl != QStyle::SC_None)
+ − 244 ? q->style()->subControlRect(QStyle::CC_ComboBox, &opt, hoverControl, q)
+ − 245 : QRect();
+ − 246 return hoverControl;
+ − 247 }
+ − 248
+ − 249 /*
+ − 250 Computes a size hint based on the maximum width
+ − 251 for the items in the combobox.
+ − 252 */
+ − 253 int QComboBoxPrivate::computeWidthHint() const
+ − 254 {
+ − 255 Q_Q(const QComboBox);
+ − 256
+ − 257 int width = 0;
+ − 258 const int count = q->count();
+ − 259 const int iconWidth = q->iconSize().width() + 4;
+ − 260 const QFontMetrics &fontMetrics = q->fontMetrics();
+ − 261
+ − 262 for (int i = 0; i < count; ++i) {
+ − 263 const int textWidth = fontMetrics.width(q->itemText(i));
+ − 264 if (q->itemIcon(i).isNull())
+ − 265 width = (qMax(width, textWidth));
+ − 266 else
+ − 267 width = (qMax(width, textWidth + iconWidth));
+ − 268 }
+ − 269
+ − 270 QStyleOptionComboBox opt;
+ − 271 q->initStyleOption(&opt);
+ − 272 QSize tmp(width, 0);
+ − 273 tmp = q->style()->sizeFromContents(QStyle::CT_ComboBox, &opt, tmp, q);
+ − 274 return tmp.width();
+ − 275 }
+ − 276
+ − 277 QSize QComboBoxPrivate::recomputeSizeHint(QSize &sh) const
+ − 278 {
+ − 279 Q_Q(const QComboBox);
+ − 280 if (!sh.isValid()) {
+ − 281 bool hasIcon = sizeAdjustPolicy == QComboBox::AdjustToMinimumContentsLengthWithIcon ? true : false;
+ − 282 int count = q->count();
+ − 283 QSize iconSize = q->iconSize();
+ − 284 const QFontMetrics &fm = q->fontMetrics();
+ − 285
+ − 286 // text width
+ − 287 if (&sh == &sizeHint || minimumContentsLength == 0) {
+ − 288 switch (sizeAdjustPolicy) {
+ − 289 case QComboBox::AdjustToContents:
+ − 290 case QComboBox::AdjustToContentsOnFirstShow:
+ − 291 if (count == 0) {
+ − 292 sh.rwidth() = 7 * fm.width(QLatin1Char('x'));
+ − 293 } else {
+ − 294 for (int i = 0; i < count; ++i) {
+ − 295 if (!q->itemIcon(i).isNull()) {
+ − 296 hasIcon = true;
+ − 297 sh.setWidth(qMax(sh.width(), fm.boundingRect(q->itemText(i)).width() + iconSize.width() + 4));
+ − 298 } else {
+ − 299 sh.setWidth(qMax(sh.width(), fm.boundingRect(q->itemText(i)).width()));
+ − 300 }
+ − 301 }
+ − 302 }
+ − 303 break;
+ − 304 case QComboBox::AdjustToMinimumContentsLength:
+ − 305 for (int i = 0; i < count && !hasIcon; ++i)
+ − 306 hasIcon = !q->itemIcon(i).isNull();
+ − 307 default:
+ − 308 ;
+ − 309 }
+ − 310 } else {
+ − 311 for (int i = 0; i < count && !hasIcon; ++i)
+ − 312 hasIcon = !q->itemIcon(i).isNull();
+ − 313 }
+ − 314 if (minimumContentsLength > 0)
+ − 315 sh.setWidth(qMax(sh.width(), minimumContentsLength * fm.width(QLatin1Char('X')) + (hasIcon ? iconSize.width() + 4 : 0)));
+ − 316
+ − 317
+ − 318 // height
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+ − 319 sh.setHeight(qMax(fm.height(), 14) + 2);
0
+ − 320 if (hasIcon) {
+ − 321 sh.setHeight(qMax(sh.height(), iconSize.height() + 2));
+ − 322 }
+ − 323
+ − 324 // add style and strut values
+ − 325 QStyleOptionComboBox opt;
+ − 326 q->initStyleOption(&opt);
+ − 327 sh = q->style()->sizeFromContents(QStyle::CT_ComboBox, &opt, sh, q);
+ − 328 }
+ − 329 return sh.expandedTo(QApplication::globalStrut());
+ − 330 }
+ − 331
+ − 332 void QComboBoxPrivate::adjustComboBoxSize()
+ − 333 {
+ − 334 viewContainer()->adjustSizeTimer.start(20, container);
+ − 335 }
+ − 336
+ − 337 void QComboBoxPrivate::updateLayoutDirection()
+ − 338 {
+ − 339 Q_Q(const QComboBox);
+ − 340 QStyleOptionComboBox opt;
+ − 341 q->initStyleOption(&opt);
+ − 342 Qt::LayoutDirection dir = Qt::LayoutDirection(
+ − 343 q->style()->styleHint(QStyle::SH_ComboBox_LayoutDirection, &opt, q));
+ − 344 if (lineEdit)
+ − 345 lineEdit->setLayoutDirection(dir);
+ − 346 if (container)
+ − 347 container->setLayoutDirection(dir);
+ − 348 }
+ − 349
+ − 350
+ − 351 void QComboBoxPrivateContainer::timerEvent(QTimerEvent *timerEvent)
+ − 352 {
+ − 353 if (timerEvent->timerId() == adjustSizeTimer.timerId()) {
+ − 354 adjustSizeTimer.stop();
+ − 355 if (combo->sizeAdjustPolicy() == QComboBox::AdjustToContents) {
+ − 356 combo->adjustSize();
+ − 357 combo->update();
+ − 358 }
+ − 359 }
+ − 360 }
+ − 361
+ − 362 void QComboBoxPrivateContainer::resizeEvent(QResizeEvent *e)
+ − 363 {
+ − 364 QStyleOptionComboBox opt = comboStyleOption();
+ − 365 if (combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo)) {
+ − 366 QStyleOption myOpt;
+ − 367 myOpt.initFrom(this);
+ − 368 QStyleHintReturnMask mask;
+ − 369 if (combo->style()->styleHint(QStyle::SH_Menu_Mask, &myOpt, this, &mask)) {
+ − 370 setMask(mask.region);
+ − 371 }
+ − 372 } else {
+ − 373 clearMask();
+ − 374 }
+ − 375 QFrame::resizeEvent(e);
+ − 376 }
+ − 377
+ − 378 void QComboBoxPrivateContainer::leaveEvent(QEvent *)
+ − 379 {
+ − 380 // On Mac using the Mac style we want to clear the selection
+ − 381 // when the mouse moves outside the popup.
+ − 382 #ifdef Q_WS_MAC
+ − 383 QStyleOptionComboBox opt = comboStyleOption();
+ − 384 if (combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo))
+ − 385 view->clearSelection();
+ − 386 #endif
+ − 387 }
+ − 388
+ − 389 QComboBoxPrivateContainer::QComboBoxPrivateContainer(QAbstractItemView *itemView, QComboBox *parent)
+ − 390 : QFrame(parent, Qt::Popup), combo(parent), view(0), top(0), bottom(0)
+ − 391 {
+ − 392 // we need the combobox and itemview
+ − 393 Q_ASSERT(parent);
+ − 394 Q_ASSERT(itemView);
+ − 395
+ − 396 setAttribute(Qt::WA_WindowPropagation);
+ − 397 setAttribute(Qt::WA_X11NetWmWindowTypeCombo);
+ − 398
+ − 399 // setup container
+ − 400 blockMouseReleaseTimer.setSingleShot(true);
+ − 401
+ − 402 // we need a vertical layout
+ − 403 QBoxLayout *layout = new QBoxLayout(QBoxLayout::TopToBottom, this);
+ − 404 layout->setSpacing(0);
+ − 405 layout->setMargin(0);
+ − 406
+ − 407 // set item view
+ − 408 setItemView(itemView);
+ − 409
+ − 410 // add scroller arrows if style needs them
+ − 411 QStyleOptionComboBox opt = comboStyleOption();
+ − 412 const bool usePopup = combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo);
+ − 413 if (usePopup) {
+ − 414 top = new QComboBoxPrivateScroller(QAbstractSlider::SliderSingleStepSub, this);
+ − 415 bottom = new QComboBoxPrivateScroller(QAbstractSlider::SliderSingleStepAdd, this);
+ − 416 top->hide();
+ − 417 bottom->hide();
+ − 418 } else {
+ − 419 setLineWidth(1);
+ − 420 }
+ − 421
+ − 422 setFrameStyle(combo->style()->styleHint(QStyle::SH_ComboBox_PopupFrameStyle, &opt, combo));
+ − 423
+ − 424 if (top) {
+ − 425 layout->insertWidget(0, top);
+ − 426 connect(top, SIGNAL(doScroll(int)), this, SLOT(scrollItemView(int)));
+ − 427 }
+ − 428 if (bottom) {
+ − 429 layout->addWidget(bottom);
+ − 430 connect(bottom, SIGNAL(doScroll(int)), this, SLOT(scrollItemView(int)));
+ − 431 }
+ − 432
+ − 433 // Some styles (Mac) have a margin at the top and bottom of the popup.
+ − 434 layout->insertSpacing(0, 0);
+ − 435 layout->addSpacing(0);
+ − 436 updateTopBottomMargin();
+ − 437 }
+ − 438
+ − 439 void QComboBoxPrivateContainer::scrollItemView(int action)
+ − 440 {
+ − 441 #ifndef QT_NO_SCROLLBAR
+ − 442 if (view->verticalScrollBar())
+ − 443 view->verticalScrollBar()->triggerAction(static_cast<QAbstractSlider::SliderAction>(action));
+ − 444 #endif
+ − 445 }
+ − 446
+ − 447 /*
+ − 448 Hides or shows the scrollers when we emulate a popupmenu
+ − 449 */
+ − 450 void QComboBoxPrivateContainer::updateScrollers()
+ − 451 {
+ − 452 #ifndef QT_NO_SCROLLBAR
+ − 453 if (!top || !bottom)
+ − 454 return;
+ − 455
+ − 456 if (isVisible() == false)
+ − 457 return;
+ − 458
+ − 459 QStyleOptionComboBox opt = comboStyleOption();
+ − 460 if (combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo) &&
+ − 461 view->verticalScrollBar()->minimum() < view->verticalScrollBar()->maximum()) {
+ − 462
+ − 463 bool needTop = view->verticalScrollBar()->value()
+ − 464 > (view->verticalScrollBar()->minimum() + spacing());
+ − 465 bool needBottom = view->verticalScrollBar()->value()
+ − 466 < (view->verticalScrollBar()->maximum() - spacing()*2);
+ − 467 if (needTop)
+ − 468 top->show();
+ − 469 else
+ − 470 top->hide();
+ − 471 if (needBottom)
+ − 472 bottom->show();
+ − 473 else
+ − 474 bottom->hide();
+ − 475 } else {
+ − 476 top->hide();
+ − 477 bottom->hide();
+ − 478 }
+ − 479 #endif // QT_NO_SCROLLBAR
+ − 480 }
+ − 481
+ − 482 /*
+ − 483 Cleans up when the view is destroyed.
+ − 484 */
+ − 485 void QComboBoxPrivateContainer::viewDestroyed()
+ − 486 {
+ − 487 view = 0;
+ − 488 setItemView(new QComboBoxListView());
+ − 489 }
+ − 490
+ − 491 /*
+ − 492 Returns the item view used for the combobox popup.
+ − 493 */
+ − 494 QAbstractItemView *QComboBoxPrivateContainer::itemView() const
+ − 495 {
+ − 496 return view;
+ − 497 }
+ − 498
+ − 499 /*!
+ − 500 Sets the item view to be used for the combobox popup.
+ − 501 */
+ − 502 void QComboBoxPrivateContainer::setItemView(QAbstractItemView *itemView)
+ − 503 {
+ − 504 Q_ASSERT(itemView);
+ − 505
+ − 506 // clean up old one
+ − 507 if (view) {
+ − 508 view->removeEventFilter(this);
+ − 509 view->viewport()->removeEventFilter(this);
+ − 510 #ifndef QT_NO_SCROLLBAR
+ − 511 disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
+ − 512 this, SLOT(updateScrollers()));
+ − 513 disconnect(view->verticalScrollBar(), SIGNAL(rangeChanged(int,int)),
+ − 514 this, SLOT(updateScrollers()));
+ − 515 #endif
+ − 516 disconnect(view, SIGNAL(destroyed()),
+ − 517 this, SLOT(viewDestroyed()));
+ − 518
+ − 519 delete view;
+ − 520 view = 0;
+ − 521 }
+ − 522
+ − 523 // setup the item view
+ − 524 view = itemView;
+ − 525 view->setParent(this);
+ − 526 view->setAttribute(Qt::WA_MacShowFocusRect, false);
+ − 527 qobject_cast<QBoxLayout*>(layout())->insertWidget(top ? 2 : 0, view);
+ − 528 view->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
+ − 529 view->installEventFilter(this);
+ − 530 view->viewport()->installEventFilter(this);
+ − 531 view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ − 532 QStyleOptionComboBox opt = comboStyleOption();
+ − 533 const bool usePopup = combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo);
+ − 534 #ifndef QT_NO_SCROLLBAR
+ − 535 if (usePopup)
+ − 536 view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ − 537 #endif
+ − 538 if (combo->style()->styleHint(QStyle::SH_ComboBox_ListMouseTracking, &opt, combo) ||
+ − 539 usePopup) {
+ − 540 view->setMouseTracking(true);
+ − 541 }
+ − 542 view->setSelectionMode(QAbstractItemView::SingleSelection);
+ − 543 view->setFrameStyle(QFrame::NoFrame);
+ − 544 view->setLineWidth(0);
+ − 545 view->setEditTriggers(QAbstractItemView::NoEditTriggers);
+ − 546 #ifndef QT_NO_SCROLLBAR
+ − 547 connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
+ − 548 this, SLOT(updateScrollers()));
+ − 549 connect(view->verticalScrollBar(), SIGNAL(rangeChanged(int,int)),
+ − 550 this, SLOT(updateScrollers()));
+ − 551 #endif
+ − 552 connect(view, SIGNAL(destroyed()),
+ − 553 this, SLOT(viewDestroyed()));
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+ − 554
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 555 #ifdef QT_SOFTKEYS_ENABLED
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+ − 556 selectAction = QSoftKeyManager::createKeyedAction(QSoftKeyManager::SelectSoftKey, Qt::Key_Select, itemView);
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+ − 557 cancelAction = QSoftKeyManager::createKeyedAction(QSoftKeyManager::CancelSoftKey, Qt::Key_Escape, itemView);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 558 addAction(selectAction);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 559 addAction(cancelAction);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 560 #endif
0
+ − 561 }
+ − 562
+ − 563 /*!
+ − 564 Returns the spacing between the items in the view.
+ − 565 */
+ − 566 int QComboBoxPrivateContainer::spacing() const
+ − 567 {
+ − 568 QListView *lview = qobject_cast<QListView*>(view);
+ − 569 if (lview)
+ − 570 return lview->spacing();
+ − 571 #ifndef QT_NO_TABLEVIEW
+ − 572 QTableView *tview = qobject_cast<QTableView*>(view);
+ − 573 if (tview)
+ − 574 return tview->showGrid() ? 1 : 0;
+ − 575 #endif
+ − 576 return 0;
+ − 577 }
+ − 578
+ − 579 void QComboBoxPrivateContainer::updateTopBottomMargin()
+ − 580 {
+ − 581 if (!layout() || layout()->count() < 1)
+ − 582 return;
+ − 583
+ − 584 QBoxLayout *boxLayout = qobject_cast<QBoxLayout *>(layout());
+ − 585 if (!boxLayout)
+ − 586 return;
+ − 587
+ − 588 const QStyleOptionComboBox opt = comboStyleOption();
+ − 589 const bool usePopup = combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo);
+ − 590 const int margin = usePopup ? combo->style()->pixelMetric(QStyle::PM_MenuVMargin, &opt, combo) : 0;
+ − 591
+ − 592 QSpacerItem *topSpacer = boxLayout->itemAt(0)->spacerItem();
+ − 593 if (topSpacer)
+ − 594 topSpacer->changeSize(0, margin, QSizePolicy::Minimum, QSizePolicy::Fixed);
+ − 595
+ − 596 QSpacerItem *bottomSpacer = boxLayout->itemAt(boxLayout->count() - 1)->spacerItem();
+ − 597 if (bottomSpacer && bottomSpacer != topSpacer)
+ − 598 bottomSpacer->changeSize(0, margin, QSizePolicy::Minimum, QSizePolicy::Fixed);
+ − 599
+ − 600 boxLayout->invalidate();
+ − 601 }
+ − 602
+ − 603 void QComboBoxPrivateContainer::changeEvent(QEvent *e)
+ − 604 {
+ − 605 if (e->type() == QEvent::StyleChange) {
+ − 606 QStyleOptionComboBox opt = comboStyleOption();
+ − 607 view->setMouseTracking(combo->style()->styleHint(QStyle::SH_ComboBox_ListMouseTracking, &opt, combo) ||
+ − 608 combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo));
+ − 609 setFrameStyle(combo->style()->styleHint(QStyle::SH_ComboBox_PopupFrameStyle, &opt, combo));
+ − 610 }
+ − 611 QWidget::changeEvent(e);
+ − 612 }
+ − 613
+ − 614
+ − 615 bool QComboBoxPrivateContainer::eventFilter(QObject *o, QEvent *e)
+ − 616 {
+ − 617 switch (e->type()) {
+ − 618 case QEvent::ShortcutOverride:
+ − 619 switch (static_cast<QKeyEvent*>(e)->key()) {
+ − 620 case Qt::Key_Enter:
+ − 621 case Qt::Key_Return:
+ − 622 #ifdef QT_KEYPAD_NAVIGATION
+ − 623 case Qt::Key_Select:
+ − 624 #endif
+ − 625 if (view->currentIndex().isValid() && (view->currentIndex().flags() & Qt::ItemIsEnabled) ) {
+ − 626 combo->hidePopup();
+ − 627 emit itemSelected(view->currentIndex());
+ − 628 }
+ − 629 return true;
+ − 630 case Qt::Key_Down:
+ − 631 if (!(static_cast<QKeyEvent*>(e)->modifiers() & Qt::AltModifier))
+ − 632 break;
+ − 633 // fall through
+ − 634 case Qt::Key_F4:
+ − 635 case Qt::Key_Escape:
+ − 636 combo->hidePopup();
+ − 637 return true;
+ − 638 default:
+ − 639 break;
+ − 640 }
+ − 641 break;
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 642 case QEvent::MouseMove:
0
+ − 643 if (isVisible()) {
+ − 644 QMouseEvent *m = static_cast<QMouseEvent *>(e);
+ − 645 QWidget *widget = static_cast<QWidget *>(o);
+ − 646 QPoint vector = widget->mapToGlobal(m->pos()) - initialClickPosition;
+ − 647 if (vector.manhattanLength() > 9 && blockMouseReleaseTimer.isActive())
+ − 648 blockMouseReleaseTimer.stop();
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 649 QModelIndex indexUnderMouse = view->indexAt(m->pos());
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 650 if (indexUnderMouse.isValid() && indexUnderMouse != view->currentIndex()
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 651 && !QComboBoxDelegate::isSeparator(indexUnderMouse)) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 652 view->setCurrentIndex(indexUnderMouse);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 653 }
0
+ − 654 }
+ − 655 break;
+ − 656 case QEvent::MouseButtonRelease: {
+ − 657 QMouseEvent *m = static_cast<QMouseEvent *>(e);
+ − 658 if (isVisible() && view->rect().contains(m->pos()) && view->currentIndex().isValid()
+ − 659 && !blockMouseReleaseTimer.isActive()
+ − 660 && (view->currentIndex().flags() & Qt::ItemIsEnabled)
+ − 661 && (view->currentIndex().flags() & Qt::ItemIsSelectable)) {
+ − 662 combo->hidePopup();
+ − 663 emit itemSelected(view->currentIndex());
+ − 664 return true;
+ − 665 }
+ − 666 break;
+ − 667 }
+ − 668 default:
+ − 669 break;
+ − 670 }
+ − 671 return QFrame::eventFilter(o, e);
+ − 672 }
+ − 673
+ − 674 void QComboBoxPrivateContainer::showEvent(QShowEvent *)
+ − 675 {
+ − 676 combo->update();
+ − 677 }
+ − 678
+ − 679 void QComboBoxPrivateContainer::hideEvent(QHideEvent *)
+ − 680 {
+ − 681 emit resetButton();
+ − 682 combo->update();
+ − 683 }
+ − 684
+ − 685 void QComboBoxPrivateContainer::mousePressEvent(QMouseEvent *e)
+ − 686 {
+ − 687
+ − 688 QStyleOptionComboBox opt = comboStyleOption();
+ − 689 opt.subControls = QStyle::SC_All;
+ − 690 opt.activeSubControls = QStyle::SC_ComboBoxArrow;
+ − 691 QStyle::SubControl sc = combo->style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt,
+ − 692 combo->mapFromGlobal(e->globalPos()),
+ − 693 combo);
+ − 694 if ((combo->isEditable() && sc == QStyle::SC_ComboBoxArrow)
+ − 695 || (!combo->isEditable() && sc != QStyle::SC_None))
+ − 696 setAttribute(Qt::WA_NoMouseReplay);
+ − 697 combo->hidePopup();
+ − 698 }
+ − 699
+ − 700 void QComboBoxPrivateContainer::mouseReleaseEvent(QMouseEvent *e)
+ − 701 {
+ − 702 Q_UNUSED(e);
+ − 703 if (!blockMouseReleaseTimer.isActive()){
+ − 704 combo->hidePopup();
+ − 705 emit resetButton();
+ − 706 }
+ − 707 }
+ − 708
+ − 709 QStyleOptionComboBox QComboBoxPrivateContainer::comboStyleOption() const
+ − 710 {
+ − 711 // ### This should use QComboBox's initStyleOption(), but it's protected
+ − 712 // perhaps, we could cheat by having the QCombo private instead?
+ − 713 QStyleOptionComboBox opt;
+ − 714 opt.initFrom(combo);
+ − 715 opt.subControls = QStyle::SC_All;
+ − 716 opt.activeSubControls = QStyle::SC_None;
+ − 717 opt.editable = combo->isEditable();
+ − 718 return opt;
+ − 719 }
+ − 720
+ − 721 /*!
+ − 722 \enum QComboBox::InsertPolicy
+ − 723
+ − 724 This enum specifies what the QComboBox should do when a new string is
+ − 725 entered by the user.
+ − 726
+ − 727 \value NoInsert The string will not be inserted into the combobox.
+ − 728 \value InsertAtTop The string will be inserted as the first item in the combobox.
+ − 729 \value InsertAtCurrent The current item will be \e replaced by the string.
+ − 730 \value InsertAtBottom The string will be inserted after the last item in the combobox.
+ − 731 \value InsertAfterCurrent The string is inserted after the current item in the combobox.
+ − 732 \value InsertBeforeCurrent The string is inserted before the current item in the combobox.
+ − 733 \value InsertAlphabetically The string is inserted in the alphabetic order in the combobox.
+ − 734 \omitvalue NoInsertion
+ − 735 \omitvalue AtTop
+ − 736 \omitvalue AtCurrent
+ − 737 \omitvalue AtBottom
+ − 738 \omitvalue AfterCurrent
+ − 739 \omitvalue BeforeCurrent
+ − 740 */
+ − 741
+ − 742 /*!
+ − 743 \enum QComboBox::SizeAdjustPolicy
+ − 744
+ − 745 This enum specifies how the size hint of the QComboBox should
+ − 746 adjust when new content is added or content changes.
+ − 747
+ − 748 \value AdjustToContents The combobox will always adjust to the contents
+ − 749 \value AdjustToContentsOnFirstShow The combobox will adjust to its contents the first time it is shown.
+ − 750 \value AdjustToMinimumContentsLength Use AdjustToContents or AdjustToContentsOnFirstShow instead.
+ − 751 \value AdjustToMinimumContentsLengthWithIcon The combobox will adjust to \l minimumContentsLength plus space for an icon. For performance reasons use this policy on large models.
+ − 752 */
+ − 753
+ − 754 /*!
+ − 755 \fn void QComboBox::activated(int index)
+ − 756
+ − 757 This signal is sent when the user chooses an item in the combobox.
+ − 758 The item's \a index is passed. Note that this signal is sent even
+ − 759 when the choice is not changed. If you need to know when the
+ − 760 choice actually changes, use signal currentIndexChanged().
+ − 761
+ − 762 */
+ − 763
+ − 764 /*!
+ − 765 \fn void QComboBox::activated(const QString &text)
+ − 766
+ − 767 This signal is sent when the user chooses an item in the combobox.
+ − 768 The item's \a text is passed. Note that this signal is sent even
+ − 769 when the choice is not changed. If you need to know when the
+ − 770 choice actually changes, use signal currentIndexChanged().
+ − 771
+ − 772 */
+ − 773
+ − 774 /*!
+ − 775 \fn void QComboBox::highlighted(int index)
+ − 776
+ − 777 This signal is sent when an item in the combobox popup list is
+ − 778 highlighted by the user. The item's \a index is passed.
+ − 779 */
+ − 780
+ − 781 /*!
+ − 782 \fn void QComboBox::highlighted(const QString &text)
+ − 783
+ − 784 This signal is sent when an item in the combobox popup list is
+ − 785 highlighted by the user. The item's \a text is passed.
+ − 786 */
+ − 787
+ − 788 /*!
+ − 789 \fn void QComboBox::currentIndexChanged(int index)
+ − 790 \since 4.1
+ − 791
+ − 792 This signal is sent whenever the currentIndex in the combobox
+ − 793 changes either through user interaction or programmatically. The
+ − 794 item's \a index is passed or -1 if the combobox becomes empty or the
+ − 795 currentIndex was reset.
+ − 796 */
+ − 797
+ − 798 /*!
+ − 799 \fn void QComboBox::currentIndexChanged(const QString &text)
+ − 800 \since 4.1
+ − 801
+ − 802 This signal is sent whenever the currentIndex in the combobox
+ − 803 changes either through user interaction or programmatically. The
+ − 804 item's \a text is passed.
+ − 805 */
+ − 806
+ − 807 /*!
+ − 808 Constructs a combobox with the given \a parent, using the default
+ − 809 model QStandardItemModel.
+ − 810 */
+ − 811 QComboBox::QComboBox(QWidget *parent)
+ − 812 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 813 {
+ − 814 Q_D(QComboBox);
+ − 815 d->init();
+ − 816 }
+ − 817
+ − 818 /*!
+ − 819 \internal
+ − 820 */
+ − 821 QComboBox::QComboBox(QComboBoxPrivate &dd, QWidget *parent)
+ − 822 : QWidget(dd, parent, 0)
+ − 823 {
+ − 824 Q_D(QComboBox);
+ − 825 d->init();
+ − 826 }
+ − 827
+ − 828 #ifdef QT3_SUPPORT
+ − 829 /*!
+ − 830 Use one of the constructors that doesn't take the \a name
+ − 831 argument and then use setObjectName() instead.
+ − 832 */
+ − 833 QComboBox::QComboBox(QWidget *parent, const char *name)
+ − 834 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 835 {
+ − 836 Q_D(QComboBox);
+ − 837 d->init();
+ − 838 setObjectName(QString::fromAscii(name));
+ − 839 }
+ − 840
+ − 841 /*!
+ − 842 Use one of the constructors that doesn't take the \a name
+ − 843 argument and then use setObjectName() instead.
+ − 844 */
+ − 845 QComboBox::QComboBox(bool rw, QWidget *parent, const char *name)
+ − 846 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 847 {
+ − 848 Q_D(QComboBox);
+ − 849 d->init();
+ − 850 setEditable(rw);
+ − 851 setObjectName(QString::fromAscii(name));
+ − 852 }
+ − 853
+ − 854 #endif //QT3_SUPPORT
+ − 855
+ − 856 /*!
+ − 857 \class QComboBox
+ − 858 \brief The QComboBox widget is a combined button and popup list.
+ − 859
+ − 860 \ingroup basicwidgets
+ − 861
+ − 862
+ − 863 A QComboBox provides a means of presenting a list of options to the user
+ − 864 in a way that takes up the minimum amount of screen space.
+ − 865
+ − 866 A combobox is a selection widget that displays the current item,
+ − 867 and can pop up a list of selectable items. A combobox may be editable,
+ − 868 allowing the user to modify each item in the list.
+ − 869
+ − 870 Comboboxes can contain pixmaps as well as strings; the
+ − 871 insertItem() and setItemText() functions are suitably overloaded.
+ − 872 For editable comboboxes, the function clearEditText() is provided,
+ − 873 to clear the displayed string without changing the combobox's
+ − 874 contents.
+ − 875
+ − 876 There are two signals emitted if the current item of a combobox
+ − 877 changes, currentIndexChanged() and activated().
+ − 878 currentIndexChanged() is always emitted regardless if the change
+ − 879 was done programmatically or by user interaction, while
+ − 880 activated() is only emitted when the change is caused by user
+ − 881 interaction. The highlighted() signal is emitted when the user
+ − 882 highlights an item in the combobox popup list. All three signals
+ − 883 exist in two versions, one with a QString argument and one with an
+ − 884 \c int argument. If the user selectes or highlights a pixmap, only
+ − 885 the \c int signals are emitted. Whenever the text of an editable
+ − 886 combobox is changed the editTextChanged() signal is emitted.
+ − 887
+ − 888 When the user enters a new string in an editable combobox, the
+ − 889 widget may or may not insert it, and it can insert it in several
+ − 890 locations. The default policy is is \l AtBottom but you can change
+ − 891 this using setInsertPolicy().
+ − 892
+ − 893 It is possible to constrain the input to an editable combobox
+ − 894 using QValidator; see setValidator(). By default, any input is
+ − 895 accepted.
+ − 896
+ − 897 A combobox can be populated using the insert functions,
+ − 898 insertItem() and insertItems() for example. Items can be
+ − 899 changed with setItemText(). An item can be removed with
+ − 900 removeItem() and all items can be removed with clear(). The text
+ − 901 of the current item is returned by currentText(), and the text of
+ − 902 a numbered item is returned with text(). The current item can be
+ − 903 set with setCurrentIndex(). The number of items in the combobox is
+ − 904 returned by count(); the maximum number of items can be set with
+ − 905 setMaxCount(). You can allow editing using setEditable(). For
+ − 906 editable comboboxes you can set auto-completion using
+ − 907 setCompleter() and whether or not the user can add duplicates
+ − 908 is set with setDuplicatesEnabled().
+ − 909
+ − 910 QComboBox uses the \l{Model/View Programming}{model/view
+ − 911 framework} for its popup list and to store its items. By default
+ − 912 a QStandardItemModel stores the items and a QListView subclass
+ − 913 displays the popuplist. You can access the model and view directly
+ − 914 (with model() and view()), but QComboBox also provides functions
+ − 915 to set and get item data (e.g., setItemData() and itemText()). You
+ − 916 can also set a new model and view (with setModel() and setView()).
+ − 917 For the text and icon in the combobox label, the data in the model
+ − 918 that has the Qt::DisplayRole and Qt::DecorationRole is used.
+ − 919
+ − 920 \image qstyle-comboboxes.png Comboboxes in the different built-in styles.
+ − 921
+ − 922 \sa QLineEdit, QSpinBox, QRadioButton, QButtonGroup,
+ − 923 {fowler}{GUI Design Handbook: Combo Box, Drop-Down List Box}
+ − 924 */
+ − 925
+ − 926 void QComboBoxPrivate::init()
+ − 927 {
+ − 928 Q_Q(QComboBox);
+ − 929 q->setFocusPolicy(Qt::WheelFocus);
+ − 930 q->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed,
+ − 931 QSizePolicy::ComboBox));
+ − 932 setLayoutItemMargins(QStyle::SE_ComboBoxLayoutItem);
+ − 933 q->setModel(new QStandardItemModel(0, 1, q));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 934 if (!q->isEditable())
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 935 q->setAttribute(Qt::WA_InputMethodEnabled, false);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 936 else
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 937 q->setAttribute(Qt::WA_InputMethodEnabled);
0
+ − 938 }
+ − 939
+ − 940 QComboBoxPrivateContainer* QComboBoxPrivate::viewContainer()
+ − 941 {
+ − 942 if (container)
+ − 943 return container;
+ − 944
+ − 945 Q_Q(QComboBox);
+ − 946 container = new QComboBoxPrivateContainer(new QComboBoxListView(q), q);
+ − 947 container->itemView()->setModel(model);
+ − 948 container->itemView()->setTextElideMode(Qt::ElideMiddle);
+ − 949 updateDelegate(true);
+ − 950 updateLayoutDirection();
+ − 951 updateViewContainerPaletteAndOpacity();
+ − 952 QObject::connect(container, SIGNAL(itemSelected(QModelIndex)),
+ − 953 q, SLOT(_q_itemSelected(QModelIndex)));
+ − 954 QObject::connect(container->itemView()->selectionModel(),
+ − 955 SIGNAL(currentChanged(QModelIndex,QModelIndex)),
+ − 956 q, SLOT(_q_emitHighlighted(QModelIndex)));
+ − 957 QObject::connect(container, SIGNAL(resetButton()), q, SLOT(_q_resetButton()));
+ − 958 return container;
+ − 959 }
+ − 960
+ − 961
+ − 962 void QComboBoxPrivate::_q_resetButton()
+ − 963 {
+ − 964 updateArrow(QStyle::State_None);
+ − 965 }
+ − 966
+ − 967 void QComboBoxPrivate::_q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
+ − 968 {
+ − 969 Q_Q(QComboBox);
+ − 970 if (inserting || topLeft.parent() != root)
+ − 971 return;
+ − 972
+ − 973 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 974 sizeHint = QSize();
+ − 975 adjustComboBoxSize();
+ − 976 q->updateGeometry();
+ − 977 }
+ − 978
+ − 979 if (currentIndex.row() >= topLeft.row() && currentIndex.row() <= bottomRight.row()) {
+ − 980 if (lineEdit) {
+ − 981 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 982 updateLineEditGeometry();
+ − 983 }
+ − 984 q->update();
+ − 985 }
+ − 986 }
+ − 987
+ − 988 void QComboBoxPrivate::_q_rowsInserted(const QModelIndex &parent, int start, int end)
+ − 989 {
+ − 990 Q_Q(QComboBox);
+ − 991 if (inserting || parent != root)
+ − 992 return;
+ − 993
+ − 994 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 995 sizeHint = QSize();
+ − 996 adjustComboBoxSize();
+ − 997 q->updateGeometry();
+ − 998 }
+ − 999
+ − 1000 // set current index if combo was previously empty
+ − 1001 if (start == 0 && (end - start + 1) == q->count() && !currentIndex.isValid()) {
+ − 1002 q->setCurrentIndex(0);
+ − 1003 // need to emit changed if model updated index "silently"
+ − 1004 } else if (currentIndex.row() != indexBeforeChange) {
+ − 1005 q->update();
+ − 1006 _q_emitCurrentIndexChanged(currentIndex);
+ − 1007 }
+ − 1008 }
+ − 1009
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1010 void QComboBoxPrivate::_q_updateIndexBeforeChange()
0
+ − 1011 {
+ − 1012 indexBeforeChange = currentIndex.row();
+ − 1013 }
+ − 1014
+ − 1015 void QComboBoxPrivate::_q_rowsRemoved(const QModelIndex &parent, int /*start*/, int /*end*/)
+ − 1016 {
+ − 1017 Q_Q(QComboBox);
+ − 1018 if (parent != root)
+ − 1019 return;
+ − 1020
+ − 1021 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 1022 sizeHint = QSize();
+ − 1023 adjustComboBoxSize();
+ − 1024 q->updateGeometry();
+ − 1025 }
+ − 1026
+ − 1027 // model has changed the currentIndex
+ − 1028 if (currentIndex.row() != indexBeforeChange) {
+ − 1029 if (!currentIndex.isValid() && q->count()) {
+ − 1030 q->setCurrentIndex(qMin(q->count() - 1, qMax(indexBeforeChange, 0)));
+ − 1031 return;
+ − 1032 }
+ − 1033 if (lineEdit) {
+ − 1034 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 1035 updateLineEditGeometry();
+ − 1036 }
+ − 1037 q->update();
+ − 1038 _q_emitCurrentIndexChanged(currentIndex);
+ − 1039 }
+ − 1040 }
+ − 1041
+ − 1042
+ − 1043 void QComboBoxPrivate::updateViewContainerPaletteAndOpacity()
+ − 1044 {
+ − 1045 if (!container)
+ − 1046 return;
+ − 1047 Q_Q(QComboBox);
+ − 1048 QStyleOptionComboBox opt;
+ − 1049 q->initStyleOption(&opt);
+ − 1050 #ifndef QT_NO_MENU
+ − 1051 if (q->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, q)) {
+ − 1052 QMenu menu;
+ − 1053 menu.ensurePolished();
+ − 1054 container->setPalette(menu.palette());
+ − 1055 container->setWindowOpacity(menu.windowOpacity());
+ − 1056 } else
+ − 1057 #endif
+ − 1058 {
+ − 1059 container->setPalette(q->palette());
+ − 1060 container->setWindowOpacity(1.0);
+ − 1061 }
+ − 1062 }
+ − 1063
+ − 1064 /*!
+ − 1065 Initialize \a option with the values from this QComboBox. This method
+ − 1066 is useful for subclasses when they need a QStyleOptionComboBox, but don't want
+ − 1067 to fill in all the information themselves.
+ − 1068
+ − 1069 \sa QStyleOption::initFrom()
+ − 1070 */
+ − 1071 void QComboBox::initStyleOption(QStyleOptionComboBox *option) const
+ − 1072 {
+ − 1073 if (!option)
+ − 1074 return;
+ − 1075
+ − 1076 Q_D(const QComboBox);
+ − 1077 option->initFrom(this);
+ − 1078 option->editable = isEditable();
+ − 1079 option->frame = d->frame;
+ − 1080 if (hasFocus() && !option->editable)
+ − 1081 option->state |= QStyle::State_Selected;
+ − 1082 option->subControls = QStyle::SC_All;
+ − 1083 if (d->arrowState == QStyle::State_Sunken) {
+ − 1084 option->activeSubControls = QStyle::SC_ComboBoxArrow;
+ − 1085 option->state |= d->arrowState;
+ − 1086 } else {
+ − 1087 option->activeSubControls = d->hoverControl;
+ − 1088 }
+ − 1089 if (d->currentIndex.isValid()) {
+ − 1090 option->currentText = currentText();
+ − 1091 option->currentIcon = d->itemIcon(d->currentIndex);
+ − 1092 }
+ − 1093 option->iconSize = iconSize();
+ − 1094 if (d->container && d->container->isVisible())
+ − 1095 option->state |= QStyle::State_On;
+ − 1096 }
+ − 1097
+ − 1098 void QComboBoxPrivate::updateLineEditGeometry()
+ − 1099 {
+ − 1100 if (!lineEdit)
+ − 1101 return;
+ − 1102
+ − 1103 Q_Q(QComboBox);
+ − 1104 QStyleOptionComboBox opt;
+ − 1105 q->initStyleOption(&opt);
+ − 1106 QRect editRect = q->style()->subControlRect(QStyle::CC_ComboBox, &opt,
+ − 1107 QStyle::SC_ComboBoxEditField, q);
+ − 1108 if (!q->itemIcon(q->currentIndex()).isNull()) {
+ − 1109 QRect comboRect(editRect);
+ − 1110 editRect.setWidth(editRect.width() - q->iconSize().width() - 4);
+ − 1111 editRect = QStyle::alignedRect(q->layoutDirection(), Qt::AlignRight,
+ − 1112 editRect.size(), comboRect);
+ − 1113 }
+ − 1114 lineEdit->setGeometry(editRect);
+ − 1115 }
+ − 1116
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1117 Qt::MatchFlags QComboBoxPrivate::matchFlags() const
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1118 {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1119 // Base how duplicates are determined on the autocompletion case sensitivity
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1120 Qt::MatchFlags flags = Qt::MatchFixedString;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1121 #ifndef QT_NO_COMPLETER
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1122 if (!lineEdit->completer() || lineEdit->completer()->caseSensitivity() == Qt::CaseSensitive)
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1123 #endif
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1124 flags |= Qt::MatchCaseSensitive;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1125 return flags;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1126 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1127
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1128
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1129 void QComboBoxPrivate::_q_editingFinished()
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1130 {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1131 Q_Q(QComboBox);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1132 if (lineEdit && !lineEdit->text().isEmpty()) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1133 //here we just check if the current item was entered
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1134 const int index = q_func()->findText(lineEdit->text(), matchFlags());
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1135 if (index != -1 && itemText(currentIndex) != lineEdit->text()) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1136 q->setCurrentIndex(index);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1137 emitActivated(currentIndex);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1138 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1139 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1140
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1141 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1142
0
+ − 1143 void QComboBoxPrivate::_q_returnPressed()
+ − 1144 {
+ − 1145 Q_Q(QComboBox);
+ − 1146 if (lineEdit && !lineEdit->text().isEmpty()) {
+ − 1147 if (q->count() >= maxCount && !(this->insertPolicy == QComboBox::InsertAtCurrent))
+ − 1148 return;
+ − 1149 lineEdit->deselect();
+ − 1150 lineEdit->end(false);
+ − 1151 QString text = lineEdit->text();
+ − 1152 // check for duplicates (if not enabled) and quit
+ − 1153 int index = -1;
+ − 1154 if (!duplicatesEnabled) {
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1155 index = q->findText(text, matchFlags());
0
+ − 1156 if (index != -1) {
+ − 1157 q->setCurrentIndex(index);
+ − 1158 emitActivated(currentIndex);
+ − 1159 return;
+ − 1160 }
+ − 1161 }
+ − 1162 switch (insertPolicy) {
+ − 1163 case QComboBox::InsertAtTop:
+ − 1164 index = 0;
+ − 1165 break;
+ − 1166 case QComboBox::InsertAtBottom:
+ − 1167 index = q->count();
+ − 1168 break;
+ − 1169 case QComboBox::InsertAtCurrent:
+ − 1170 case QComboBox::InsertAfterCurrent:
+ − 1171 case QComboBox::InsertBeforeCurrent:
+ − 1172 if (!q->count() || !currentIndex.isValid())
+ − 1173 index = 0;
+ − 1174 else if (insertPolicy == QComboBox::InsertAtCurrent)
+ − 1175 q->setItemText(q->currentIndex(), text);
+ − 1176 else if (insertPolicy == QComboBox::InsertAfterCurrent)
+ − 1177 index = q->currentIndex() + 1;
+ − 1178 else if (insertPolicy == QComboBox::InsertBeforeCurrent)
+ − 1179 index = q->currentIndex();
+ − 1180 break;
+ − 1181 case QComboBox::InsertAlphabetically:
+ − 1182 index = 0;
+ − 1183 for (int i=0; i< q->count(); i++, index++ ) {
+ − 1184 if (text.toLower() < q->itemText(i).toLower())
+ − 1185 break;
+ − 1186 }
+ − 1187 break;
+ − 1188 case QComboBox::NoInsert:
+ − 1189 default:
+ − 1190 break;
+ − 1191 }
+ − 1192 if (index >= 0) {
+ − 1193 q->insertItem(index, text);
+ − 1194 q->setCurrentIndex(index);
+ − 1195 emitActivated(currentIndex);
+ − 1196 }
+ − 1197 }
+ − 1198 }
+ − 1199
+ − 1200 void QComboBoxPrivate::_q_itemSelected(const QModelIndex &item)
+ − 1201 {
+ − 1202 Q_Q(QComboBox);
+ − 1203 if (item != currentIndex) {
+ − 1204 setCurrentIndex(item);
+ − 1205 } else if (lineEdit) {
+ − 1206 lineEdit->selectAll();
+ − 1207 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 1208 }
+ − 1209 emitActivated(currentIndex);
+ − 1210 }
+ − 1211
+ − 1212 void QComboBoxPrivate::emitActivated(const QModelIndex &index)
+ − 1213 {
+ − 1214 Q_Q(QComboBox);
+ − 1215 if (!index.isValid())
+ − 1216 return;
+ − 1217 QString text(itemText(index));
+ − 1218 emit q->activated(index.row());
+ − 1219 emit q->activated(text);
+ − 1220 }
+ − 1221
+ − 1222 void QComboBoxPrivate::_q_emitHighlighted(const QModelIndex &index)
+ − 1223 {
+ − 1224 Q_Q(QComboBox);
+ − 1225 if (!index.isValid())
+ − 1226 return;
+ − 1227 QString text(itemText(index));
+ − 1228 emit q->highlighted(index.row());
+ − 1229 emit q->highlighted(text);
+ − 1230 }
+ − 1231
+ − 1232 void QComboBoxPrivate::_q_emitCurrentIndexChanged(const QModelIndex &index)
+ − 1233 {
+ − 1234 Q_Q(QComboBox);
+ − 1235 emit q->currentIndexChanged(index.row());
+ − 1236 emit q->currentIndexChanged(itemText(index));
+ − 1237 }
+ − 1238
+ − 1239 QString QComboBoxPrivate::itemText(const QModelIndex &index) const
+ − 1240 {
+ − 1241 return index.isValid() ? model->data(index, itemRole()).toString() : QString();
+ − 1242 }
+ − 1243
+ − 1244 int QComboBoxPrivate::itemRole() const
+ − 1245 {
+ − 1246 return q_func()->isEditable() ? Qt::EditRole : Qt::DisplayRole;
+ − 1247 }
+ − 1248
+ − 1249 /*!
+ − 1250 Destroys the combobox.
+ − 1251 */
+ − 1252 QComboBox::~QComboBox()
+ − 1253 {
+ − 1254 // ### check delegateparent and delete delegate if us?
+ − 1255 Q_D(QComboBox);
+ − 1256
+ − 1257 QT_TRY {
+ − 1258 disconnect(d->model, SIGNAL(destroyed()),
+ − 1259 this, SLOT(_q_modelDestroyed()));
+ − 1260 } QT_CATCH(...) {
+ − 1261 ; // objects can't throw in destructor
+ − 1262 }
+ − 1263 }
+ − 1264
+ − 1265 /*!
+ − 1266 \property QComboBox::maxVisibleItems
+ − 1267 \brief the maximum allowed size on screen of the combo box, measured in items
+ − 1268
+ − 1269 By default, this property has a value of 10.
+ − 1270
+ − 1271 \note This property is ignored for non-editable comboboxes in Mac style.
+ − 1272 */
+ − 1273 int QComboBox::maxVisibleItems() const
+ − 1274 {
+ − 1275 Q_D(const QComboBox);
+ − 1276 return d->maxVisibleItems;
+ − 1277 }
+ − 1278
+ − 1279 void QComboBox::setMaxVisibleItems(int maxItems)
+ − 1280 {
+ − 1281 Q_D(QComboBox);
+ − 1282 if (maxItems < 0) {
+ − 1283 qWarning("QComboBox::setMaxVisibleItems: "
+ − 1284 "Invalid max visible items (%d) must be >= 0", maxItems);
+ − 1285 return;
+ − 1286 }
+ − 1287 d->maxVisibleItems = maxItems;
+ − 1288 }
+ − 1289
+ − 1290 /*!
+ − 1291 \property QComboBox::count
+ − 1292 \brief the number of items in the combobox
+ − 1293
+ − 1294 By default, for an empty combo box, this property has a value of 0.
+ − 1295 */
+ − 1296 int QComboBox::count() const
+ − 1297 {
+ − 1298 Q_D(const QComboBox);
+ − 1299 return d->model->rowCount(d->root);
+ − 1300 }
+ − 1301
+ − 1302 /*!
+ − 1303 \property QComboBox::maxCount
+ − 1304 \brief the maximum number of items allowed in the combobox
+ − 1305
+ − 1306 \note If you set the maximum number to be less then the current
+ − 1307 amount of items in the combobox, the extra items will be
+ − 1308 truncated. This also applies if you have set an external model on
+ − 1309 the combobox.
+ − 1310
+ − 1311 By default, this property's value is derived from the highest
+ − 1312 signed integer available (typically 2147483647).
+ − 1313 */
+ − 1314 void QComboBox::setMaxCount(int max)
+ − 1315 {
+ − 1316 Q_D(QComboBox);
+ − 1317 if (max < 0) {
+ − 1318 qWarning("QComboBox::setMaxCount: Invalid count (%d) must be >= 0", max);
+ − 1319 return;
+ − 1320 }
+ − 1321
+ − 1322 if (max < count())
+ − 1323 d->model->removeRows(max, count() - max, d->root);
+ − 1324
+ − 1325 d->maxCount = max;
+ − 1326 }
+ − 1327
+ − 1328 int QComboBox::maxCount() const
+ − 1329 {
+ − 1330 Q_D(const QComboBox);
+ − 1331 return d->maxCount;
+ − 1332 }
+ − 1333
+ − 1334 #ifndef QT_NO_COMPLETER
+ − 1335
+ − 1336 /*!
+ − 1337 \property QComboBox::autoCompletion
+ − 1338 \brief whether the combobox provides auto-completion for editable items
+ − 1339 \since 4.1
+ − 1340 \obsolete
+ − 1341
+ − 1342 Use setCompleter() instead.
+ − 1343
+ − 1344 By default, this property is true.
+ − 1345
+ − 1346 \sa editable
+ − 1347 */
+ − 1348
+ − 1349 /*!
+ − 1350 \obsolete
+ − 1351
+ − 1352 Use setCompleter() instead.
+ − 1353 */
+ − 1354 bool QComboBox::autoCompletion() const
+ − 1355 {
+ − 1356 Q_D(const QComboBox);
+ − 1357 return d->autoCompletion;
+ − 1358 }
+ − 1359
+ − 1360 /*!
+ − 1361 \obsolete
+ − 1362
+ − 1363 Use setCompleter() instead.
+ − 1364 */
+ − 1365 void QComboBox::setAutoCompletion(bool enable)
+ − 1366 {
+ − 1367 Q_D(QComboBox);
+ − 1368
+ − 1369 #ifdef QT_KEYPAD_NAVIGATION
+ − 1370 if (QApplication::keypadNavigationEnabled() && !enable && isEditable())
+ − 1371 qWarning("QComboBox::setAutoCompletion: auto completion is mandatory when combo box editable");
+ − 1372 #endif
+ − 1373
+ − 1374 d->autoCompletion = enable;
+ − 1375 if (!d->lineEdit)
+ − 1376 return;
+ − 1377 if (enable) {
+ − 1378 if (d->lineEdit->completer())
+ − 1379 return;
+ − 1380 d->completer = new QCompleter(d->model, d->lineEdit);
+ − 1381 d->completer->setCaseSensitivity(d->autoCompletionCaseSensitivity);
+ − 1382 d->completer->setCompletionMode(QCompleter::InlineCompletion);
+ − 1383 d->completer->setCompletionColumn(d->modelColumn);
+ − 1384 d->lineEdit->setCompleter(d->completer);
+ − 1385 d->completer->setWidget(this);
+ − 1386 } else {
+ − 1387 d->lineEdit->setCompleter(0);
+ − 1388 }
+ − 1389 }
+ − 1390
+ − 1391 /*!
+ − 1392 \property QComboBox::autoCompletionCaseSensitivity
+ − 1393 \brief whether string comparisons are case-sensitive or case-insensitive for auto-completion
+ − 1394 \obsolete
+ − 1395
+ − 1396 By default, this property is Qt::CaseInsensitive.
+ − 1397
+ − 1398 Use setCompleter() instead. Case sensitivity of the auto completion can be
+ − 1399 changed using QCompleter::setCaseSensitivity().
+ − 1400
+ − 1401 \sa autoCompletion
+ − 1402 */
+ − 1403
+ − 1404 /*!
+ − 1405 \obsolete
+ − 1406
+ − 1407 Use setCompleter() and QCompleter::setCaseSensitivity() instead.
+ − 1408 */
+ − 1409 Qt::CaseSensitivity QComboBox::autoCompletionCaseSensitivity() const
+ − 1410 {
+ − 1411 Q_D(const QComboBox);
+ − 1412 return d->autoCompletionCaseSensitivity;
+ − 1413 }
+ − 1414
+ − 1415 /*!
+ − 1416 \obsolete
+ − 1417
+ − 1418 Use setCompleter() and QCompleter::setCaseSensitivity() instead.
+ − 1419 */
+ − 1420 void QComboBox::setAutoCompletionCaseSensitivity(Qt::CaseSensitivity sensitivity)
+ − 1421 {
+ − 1422 Q_D(QComboBox);
+ − 1423 d->autoCompletionCaseSensitivity = sensitivity;
+ − 1424 if (d->lineEdit && d->lineEdit->completer())
+ − 1425 d->lineEdit->completer()->setCaseSensitivity(sensitivity);
+ − 1426 }
+ − 1427
+ − 1428 #endif // QT_NO_COMPLETER
+ − 1429
+ − 1430 /*!
+ − 1431 \property QComboBox::duplicatesEnabled
+ − 1432 \brief whether the user can enter duplicate items into the combobox
+ − 1433
+ − 1434 Note that it is always possible to programmatically insert duplicate items into the
+ − 1435 combobox.
+ − 1436
+ − 1437 By default, this property is false (duplicates are not allowed).
+ − 1438 */
+ − 1439 bool QComboBox::duplicatesEnabled() const
+ − 1440 {
+ − 1441 Q_D(const QComboBox);
+ − 1442 return d->duplicatesEnabled;
+ − 1443 }
+ − 1444
+ − 1445 void QComboBox::setDuplicatesEnabled(bool enable)
+ − 1446 {
+ − 1447 Q_D(QComboBox);
+ − 1448 d->duplicatesEnabled = enable;
+ − 1449 }
+ − 1450
+ − 1451 /*! \fn int QComboBox::findText(const QString &text, Qt::MatchFlags flags = Qt::MatchExactly|Qt::MatchCaseSensitive) const
+ − 1452
+ − 1453 Returns the index of the item containing the given \a text; otherwise
+ − 1454 returns -1.
+ − 1455
+ − 1456 The \a flags specify how the items in the combobox are searched.
+ − 1457 */
+ − 1458
+ − 1459 /*!
+ − 1460 Returns the index of the item containing the given \a data for the
+ − 1461 given \a role; otherwise returns -1.
+ − 1462
+ − 1463 The \a flags specify how the items in the combobox are searched.
+ − 1464 */
+ − 1465 int QComboBox::findData(const QVariant &data, int role, Qt::MatchFlags flags) const
+ − 1466 {
+ − 1467 Q_D(const QComboBox);
+ − 1468 QModelIndexList result;
+ − 1469 QModelIndex start = d->model->index(0, d->modelColumn, d->root);
+ − 1470 result = d->model->match(start, role, data, 1, flags);
+ − 1471 if (result.isEmpty())
+ − 1472 return -1;
+ − 1473 return result.first().row();
+ − 1474 }
+ − 1475
+ − 1476 /*!
+ − 1477 \property QComboBox::insertPolicy
+ − 1478 \brief the policy used to determine where user-inserted items should
+ − 1479 appear in the combobox
+ − 1480
+ − 1481 The default value is \l AtBottom, indicating that new items will appear
+ − 1482 at the bottom of the list of items.
+ − 1483
+ − 1484 \sa InsertPolicy
+ − 1485 */
+ − 1486
+ − 1487 QComboBox::InsertPolicy QComboBox::insertPolicy() const
+ − 1488 {
+ − 1489 Q_D(const QComboBox);
+ − 1490 return d->insertPolicy;
+ − 1491 }
+ − 1492
+ − 1493 void QComboBox::setInsertPolicy(InsertPolicy policy)
+ − 1494 {
+ − 1495 Q_D(QComboBox);
+ − 1496 d->insertPolicy = policy;
+ − 1497 }
+ − 1498
+ − 1499 /*!
+ − 1500 \property QComboBox::sizeAdjustPolicy
+ − 1501 \brief the policy describing how the size of the combobox changes
+ − 1502 when the content changes
+ − 1503
+ − 1504 The default value is \l AdjustToContentsOnFirstShow.
+ − 1505
+ − 1506 \sa SizeAdjustPolicy
+ − 1507 */
+ − 1508
+ − 1509 QComboBox::SizeAdjustPolicy QComboBox::sizeAdjustPolicy() const
+ − 1510 {
+ − 1511 Q_D(const QComboBox);
+ − 1512 return d->sizeAdjustPolicy;
+ − 1513 }
+ − 1514
+ − 1515 void QComboBox::setSizeAdjustPolicy(QComboBox::SizeAdjustPolicy policy)
+ − 1516 {
+ − 1517 Q_D(QComboBox);
+ − 1518 if (policy == d->sizeAdjustPolicy)
+ − 1519 return;
+ − 1520
+ − 1521 d->sizeAdjustPolicy = policy;
+ − 1522 d->sizeHint = QSize();
+ − 1523 d->adjustComboBoxSize();
+ − 1524 updateGeometry();
+ − 1525 }
+ − 1526
+ − 1527 /*!
+ − 1528 \property QComboBox::minimumContentsLength
+ − 1529 \brief the minimum number of characters that should fit into the combobox.
+ − 1530
+ − 1531 The default value is 0.
+ − 1532
+ − 1533 If this property is set to a positive value, the
+ − 1534 minimumSizeHint() and sizeHint() take it into account.
+ − 1535
+ − 1536 \sa sizeAdjustPolicy
+ − 1537 */
+ − 1538 int QComboBox::minimumContentsLength() const
+ − 1539 {
+ − 1540 Q_D(const QComboBox);
+ − 1541 return d->minimumContentsLength;
+ − 1542 }
+ − 1543
+ − 1544 void QComboBox::setMinimumContentsLength(int characters)
+ − 1545 {
+ − 1546 Q_D(QComboBox);
+ − 1547 if (characters == d->minimumContentsLength || characters < 0)
+ − 1548 return;
+ − 1549
+ − 1550 d->minimumContentsLength = characters;
+ − 1551
+ − 1552 if (d->sizeAdjustPolicy == AdjustToContents
+ − 1553 || d->sizeAdjustPolicy == AdjustToMinimumContentsLength
+ − 1554 || d->sizeAdjustPolicy == AdjustToMinimumContentsLengthWithIcon) {
+ − 1555 d->sizeHint = QSize();
+ − 1556 d->adjustComboBoxSize();
+ − 1557 updateGeometry();
+ − 1558 }
+ − 1559 }
+ − 1560
+ − 1561 /*!
+ − 1562 \property QComboBox::iconSize
+ − 1563 \brief the size of the icons shown in the combobox.
+ − 1564
+ − 1565 Unless explicitly set this returns the default value of the
+ − 1566 current style. This size is the maximum size that icons can have;
+ − 1567 icons of smaller size are not scaled up.
+ − 1568 */
+ − 1569
+ − 1570 QSize QComboBox::iconSize() const
+ − 1571 {
+ − 1572 Q_D(const QComboBox);
+ − 1573 if (d->iconSize.isValid())
+ − 1574 return d->iconSize;
+ − 1575
+ − 1576 int iconWidth = style()->pixelMetric(QStyle::PM_SmallIconSize, 0, this);
+ − 1577 return QSize(iconWidth, iconWidth);
+ − 1578 }
+ − 1579
+ − 1580 void QComboBox::setIconSize(const QSize &size)
+ − 1581 {
+ − 1582 Q_D(QComboBox);
+ − 1583 if (size == d->iconSize)
+ − 1584 return;
+ − 1585
+ − 1586 view()->setIconSize(size);
+ − 1587 d->iconSize = size;
+ − 1588 d->sizeHint = QSize();
+ − 1589 updateGeometry();
+ − 1590 }
+ − 1591
+ − 1592 /*!
+ − 1593 \property QComboBox::editable
+ − 1594 \brief whether the combo box can be edited by the user
+ − 1595
+ − 1596 By default, this property is false.
+ − 1597 */
+ − 1598 bool QComboBox::isEditable() const
+ − 1599 {
+ − 1600 Q_D(const QComboBox);
+ − 1601 return d->lineEdit != 0;
+ − 1602 }
+ − 1603
+ − 1604 /*! \internal
+ − 1605 update the default delegate
+ − 1606 depending on the style's SH_ComboBox_Popup hint, we use a different default delegate.
+ − 1607
+ − 1608 but we do not change the delegate is the combobox use a custom delegate,
+ − 1609 unless \a force is set to true.
+ − 1610 */
+ − 1611 void QComboBoxPrivate::updateDelegate(bool force)
+ − 1612 {
+ − 1613 Q_Q(QComboBox);
+ − 1614 QStyleOptionComboBox opt;
+ − 1615 q->initStyleOption(&opt);
+ − 1616 if (q->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, q)) {
+ − 1617 if (force || qobject_cast<QComboBoxDelegate *>(q->itemDelegate()))
+ − 1618 q->setItemDelegate(new QComboMenuDelegate(q->view(), q));
+ − 1619 } else {
+ − 1620 if (force || qobject_cast<QComboMenuDelegate *>(q->itemDelegate()))
+ − 1621 q->setItemDelegate(new QComboBoxDelegate(q->view(), q));
+ − 1622 }
+ − 1623 }
+ − 1624
+ − 1625 QIcon QComboBoxPrivate::itemIcon(const QModelIndex &index) const
+ − 1626 {
+ − 1627 QVariant decoration = model->data(index, Qt::DecorationRole);
+ − 1628 if (decoration.type() == QVariant::Pixmap)
+ − 1629 return QIcon(qvariant_cast<QPixmap>(decoration));
+ − 1630 else
+ − 1631 return qvariant_cast<QIcon>(decoration);
+ − 1632 }
+ − 1633
+ − 1634 void QComboBox::setEditable(bool editable)
+ − 1635 {
+ − 1636 Q_D(QComboBox);
+ − 1637 if (isEditable() == editable)
+ − 1638 return;
+ − 1639
+ − 1640 d->updateDelegate();
+ − 1641
+ − 1642 QStyleOptionComboBox opt;
+ − 1643 initStyleOption(&opt);
+ − 1644 if (editable) {
+ − 1645 if (style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)) {
+ − 1646 d->viewContainer()->updateScrollers();
+ − 1647 view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+ − 1648 }
+ − 1649 QLineEdit *le = new QLineEdit(this);
+ − 1650 setLineEdit(le);
+ − 1651 } else {
+ − 1652 if (style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)) {
+ − 1653 d->viewContainer()->updateScrollers();
+ − 1654 view()->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ − 1655 }
+ − 1656 setAttribute(Qt::WA_InputMethodEnabled, false);
+ − 1657 d->lineEdit->hide();
+ − 1658 d->lineEdit->deleteLater();
+ − 1659 d->lineEdit = 0;
+ − 1660 }
+ − 1661
+ − 1662 d->viewContainer()->updateTopBottomMargin();
+ − 1663 if (!testAttribute(Qt::WA_Resized))
+ − 1664 adjustSize();
+ − 1665 }
+ − 1666
+ − 1667 /*!
+ − 1668 Sets the line \a edit to use instead of the current line edit widget.
+ − 1669
+ − 1670 The combo box takes ownership of the line edit.
+ − 1671 */
+ − 1672 void QComboBox::setLineEdit(QLineEdit *edit)
+ − 1673 {
+ − 1674 Q_D(QComboBox);
+ − 1675 if (!edit) {
+ − 1676 qWarning("QComboBox::setLineEdit: cannot set a 0 line edit");
+ − 1677 return;
+ − 1678 }
+ − 1679
+ − 1680 if (edit == d->lineEdit)
+ − 1681 return;
+ − 1682
+ − 1683 edit->setText(currentText());
+ − 1684 delete d->lineEdit;
+ − 1685
+ − 1686 d->lineEdit = edit;
+ − 1687 if (d->lineEdit->parent() != this)
+ − 1688 d->lineEdit->setParent(this);
+ − 1689 connect(d->lineEdit, SIGNAL(returnPressed()), this, SLOT(_q_returnPressed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1690 connect(d->lineEdit, SIGNAL(editingFinished()), this, SLOT(_q_editingFinished()));
0
+ − 1691 connect(d->lineEdit, SIGNAL(textChanged(QString)), this, SIGNAL(editTextChanged(QString)));
+ − 1692 #ifdef QT3_SUPPORT
+ − 1693 connect(d->lineEdit, SIGNAL(textChanged(QString)), this, SIGNAL(textChanged(QString)));
+ − 1694 #endif
+ − 1695 d->lineEdit->setFrame(false);
+ − 1696 d->lineEdit->setContextMenuPolicy(Qt::NoContextMenu);
+ − 1697 d->lineEdit->setFocusProxy(this);
+ − 1698 d->lineEdit->setAttribute(Qt::WA_MacShowFocusRect, false);
+ − 1699 #ifndef QT_NO_COMPLETER
+ − 1700 setAutoCompletion(d->autoCompletion);
+ − 1701 #endif
+ − 1702
+ − 1703 #ifdef QT_KEYPAD_NAVIGATION
+ − 1704 #ifndef QT_NO_COMPLETER
+ − 1705 if (QApplication::keypadNavigationEnabled()) {
+ − 1706 // Editable combo boxes will have a completer that is set to UnfilteredPopupCompletion.
+ − 1707 // This means that when the user enters edit mode they are immediately presented with a
+ − 1708 // list of possible completions.
+ − 1709 setAutoCompletion(true);
+ − 1710 if (d->completer) {
+ − 1711 d->completer->setCompletionMode(QCompleter::UnfilteredPopupCompletion);
+ − 1712 connect(d->completer, SIGNAL(activated(QModelIndex)), this, SLOT(_q_completerActivated()));
+ − 1713 }
+ − 1714 }
+ − 1715 #endif
+ − 1716 #endif
+ − 1717
+ − 1718 setAttribute(Qt::WA_InputMethodEnabled);
+ − 1719 d->updateLayoutDirection();
+ − 1720 d->updateLineEditGeometry();
+ − 1721 if (isVisible())
+ − 1722 d->lineEdit->show();
+ − 1723
+ − 1724 update();
+ − 1725 }
+ − 1726
+ − 1727 /*!
+ − 1728 Returns the line edit used to edit items in the combobox, or 0 if there
+ − 1729 is no line edit.
+ − 1730
+ − 1731 Only editable combo boxes have a line edit.
+ − 1732 */
+ − 1733 QLineEdit *QComboBox::lineEdit() const
+ − 1734 {
+ − 1735 Q_D(const QComboBox);
+ − 1736 return d->lineEdit;
+ − 1737 }
+ − 1738
+ − 1739 #ifndef QT_NO_VALIDATOR
+ − 1740 /*!
+ − 1741 \fn void QComboBox::setValidator(const QValidator *validator)
+ − 1742
+ − 1743 Sets the \a validator to use instead of the current validator.
+ − 1744 */
+ − 1745
+ − 1746 void QComboBox::setValidator(const QValidator *v)
+ − 1747 {
+ − 1748 Q_D(QComboBox);
+ − 1749 if (d->lineEdit)
+ − 1750 d->lineEdit->setValidator(v);
+ − 1751 }
+ − 1752
+ − 1753 /*!
+ − 1754 Returns the validator that is used to constrain text input for the
+ − 1755 combobox.
+ − 1756
+ − 1757 \sa editable
+ − 1758 */
+ − 1759 const QValidator *QComboBox::validator() const
+ − 1760 {
+ − 1761 Q_D(const QComboBox);
+ − 1762 return d->lineEdit ? d->lineEdit->validator() : 0;
+ − 1763 }
+ − 1764 #endif // QT_NO_VALIDATOR
+ − 1765
+ − 1766 #ifndef QT_NO_COMPLETER
+ − 1767
+ − 1768 /*!
+ − 1769 \fn void QComboBox::setCompleter(QCompleter *completer)
+ − 1770 \since 4.2
+ − 1771
+ − 1772 Sets the \a completer to use instead of the current completer.
+ − 1773 If \a completer is 0, auto completion is disabled.
+ − 1774
+ − 1775 By default, for an editable combo box, a QCompleter that
+ − 1776 performs case insensitive inline completion is automatically created.
+ − 1777 */
+ − 1778 void QComboBox::setCompleter(QCompleter *c)
+ − 1779 {
+ − 1780 Q_D(QComboBox);
+ − 1781 if (!d->lineEdit)
+ − 1782 return;
+ − 1783 d->lineEdit->setCompleter(c);
+ − 1784 if (c)
+ − 1785 c->setWidget(this);
+ − 1786 }
+ − 1787
+ − 1788 /*!
+ − 1789 \since 4.2
+ − 1790
+ − 1791 Returns the completer that is used to auto complete text input for the
+ − 1792 combobox.
+ − 1793
+ − 1794 \sa editable
+ − 1795 */
+ − 1796 QCompleter *QComboBox::completer() const
+ − 1797 {
+ − 1798 Q_D(const QComboBox);
+ − 1799 return d->lineEdit ? d->lineEdit->completer() : 0;
+ − 1800 }
+ − 1801
+ − 1802 #endif // QT_NO_COMPLETER
+ − 1803
+ − 1804 /*!
+ − 1805 Returns the item delegate used by the popup list view.
+ − 1806
+ − 1807 \sa setItemDelegate()
+ − 1808 */
+ − 1809 QAbstractItemDelegate *QComboBox::itemDelegate() const
+ − 1810 {
+ − 1811 return view()->itemDelegate();
+ − 1812 }
+ − 1813
+ − 1814 /*!
+ − 1815 Sets the item \a delegate for the popup list view.
+ − 1816 The combobox takes ownership of the delegate.
+ − 1817
+ − 1818 \warning You should not share the same instance of a delegate between comboboxes,
+ − 1819 widget mappers or views. Doing so can cause incorrect or unintuitive editing behavior
+ − 1820 since each view connected to a given delegate may receive the
+ − 1821 \l{QAbstractItemDelegate::}{closeEditor()} signal, and attempt to access, modify or
+ − 1822 close an editor that has already been closed.
+ − 1823
+ − 1824 \sa itemDelegate()
+ − 1825 */
+ − 1826 void QComboBox::setItemDelegate(QAbstractItemDelegate *delegate)
+ − 1827 {
+ − 1828 if (!delegate) {
+ − 1829 qWarning("QComboBox::setItemDelegate: cannot set a 0 delegate");
+ − 1830 return;
+ − 1831 }
+ − 1832 delete view()->itemDelegate();
+ − 1833 view()->setItemDelegate(delegate);
+ − 1834 }
+ − 1835
+ − 1836 /*!
+ − 1837 Returns the model used by the combobox.
+ − 1838 */
+ − 1839
+ − 1840 QAbstractItemModel *QComboBox::model() const
+ − 1841 {
+ − 1842 Q_D(const QComboBox);
+ − 1843 if (d->model == QAbstractItemModelPrivate::staticEmptyModel()) {
+ − 1844 QComboBox *that = const_cast<QComboBox*>(this);
+ − 1845 that->setModel(new QStandardItemModel(0, 1, that));
+ − 1846 }
+ − 1847 return d->model;
+ − 1848 }
+ − 1849
+ − 1850 /*!
+ − 1851 Sets the model to be \a model. \a model must not be 0.
+ − 1852 If you want to clear the contents of a model, call clear().
+ − 1853
+ − 1854 \sa clear()
+ − 1855 */
+ − 1856 void QComboBox::setModel(QAbstractItemModel *model)
+ − 1857 {
+ − 1858 Q_D(QComboBox);
+ − 1859
+ − 1860 if (!model) {
+ − 1861 qWarning("QComboBox::setModel: cannot set a 0 model");
+ − 1862 return;
+ − 1863 }
+ − 1864
+ − 1865 #ifndef QT_NO_COMPLETER
+ − 1866 if (d->lineEdit && d->lineEdit->completer()
+ − 1867 && d->lineEdit->completer() == d->completer)
+ − 1868 d->lineEdit->completer()->setModel(model);
+ − 1869 #endif
+ − 1870 if (d->model) {
+ − 1871 disconnect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+ − 1872 this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
+ − 1873 disconnect(d->model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1874 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1875 disconnect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ − 1876 this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
+ − 1877 disconnect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1878 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1879 disconnect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ − 1880 this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
+ − 1881 disconnect(d->model, SIGNAL(destroyed()),
+ − 1882 this, SLOT(_q_modelDestroyed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1883 disconnect(d->model, SIGNAL(modelAboutToBeReset()),
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1884 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1885 disconnect(d->model, SIGNAL(modelReset()),
+ − 1886 this, SLOT(_q_modelReset()));
+ − 1887 if (d->model->QObject::parent() == this)
+ − 1888 delete d->model;
+ − 1889 }
+ − 1890
+ − 1891 d->model = model;
+ − 1892
+ − 1893 connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+ − 1894 this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
+ − 1895 connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1896 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1897 connect(model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ − 1898 this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
+ − 1899 connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1900 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1901 connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ − 1902 this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
+ − 1903 connect(model, SIGNAL(destroyed()),
+ − 1904 this, SLOT(_q_modelDestroyed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1905 connect(model, SIGNAL(modelAboutToBeReset()),
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1906 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1907 connect(model, SIGNAL(modelReset()),
+ − 1908 this, SLOT(_q_modelReset()));
+ − 1909
+ − 1910 if (d->container)
+ − 1911 d->container->itemView()->setModel(model);
+ − 1912
+ − 1913 bool currentReset = false;
+ − 1914
+ − 1915 if (count()) {
+ − 1916 for (int pos=0; pos < count(); pos++) {
+ − 1917 if (d->model->index(pos, d->modelColumn, d->root).flags() & Qt::ItemIsEnabled) {
+ − 1918 setCurrentIndex(pos);
+ − 1919 currentReset = true;
+ − 1920 break;
+ − 1921 }
+ − 1922 }
+ − 1923 }
+ − 1924
+ − 1925 if (!currentReset)
+ − 1926 setCurrentIndex(-1);
+ − 1927
+ − 1928 d->modelChanged();
+ − 1929 }
+ − 1930
+ − 1931 /*!
+ − 1932 Returns the root model item index for the items in the combobox.
+ − 1933
+ − 1934 \sa setRootModelIndex()
+ − 1935 */
+ − 1936
+ − 1937 QModelIndex QComboBox::rootModelIndex() const
+ − 1938 {
+ − 1939 Q_D(const QComboBox);
+ − 1940 return QModelIndex(d->root);
+ − 1941 }
+ − 1942
+ − 1943 /*!
+ − 1944 Sets the root model item \a index for the items in the combobox.
+ − 1945
+ − 1946 \sa rootModelIndex()
+ − 1947 */
+ − 1948 void QComboBox::setRootModelIndex(const QModelIndex &index)
+ − 1949 {
+ − 1950 Q_D(QComboBox);
+ − 1951 d->root = QPersistentModelIndex(index);
+ − 1952 view()->setRootIndex(index);
+ − 1953 update();
+ − 1954 }
+ − 1955
+ − 1956 /*!
+ − 1957 \property QComboBox::currentIndex
+ − 1958 \brief the index of the current item in the combobox.
+ − 1959
+ − 1960 The current index can change when inserting or removing items.
+ − 1961
+ − 1962 By default, for an empty combo box or a combo box in which no current
+ − 1963 item is set, this property has a value of -1.
+ − 1964 */
+ − 1965 int QComboBox::currentIndex() const
+ − 1966 {
+ − 1967 Q_D(const QComboBox);
+ − 1968 return d->currentIndex.row();
+ − 1969 }
+ − 1970
+ − 1971 void QComboBox::setCurrentIndex(int index)
+ − 1972 {
+ − 1973 Q_D(QComboBox);
+ − 1974 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 1975 d->setCurrentIndex(mi);
+ − 1976 }
+ − 1977
+ − 1978 void QComboBoxPrivate::setCurrentIndex(const QModelIndex &mi)
+ − 1979 {
+ − 1980 Q_Q(QComboBox);
+ − 1981 bool indexChanged = (mi != currentIndex);
+ − 1982 if (indexChanged)
+ − 1983 currentIndex = QPersistentModelIndex(mi);
+ − 1984 if (lineEdit) {
+ − 1985 QString newText = q->itemText(currentIndex.row());
+ − 1986 if (lineEdit->text() != newText)
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1987 lineEdit->setText(newText);
0
+ − 1988 updateLineEditGeometry();
+ − 1989 }
+ − 1990 if (indexChanged) {
+ − 1991 q->update();
+ − 1992 _q_emitCurrentIndexChanged(currentIndex);
+ − 1993 }
+ − 1994 }
+ − 1995
+ − 1996 /*!
+ − 1997 \property QComboBox::currentText
+ − 1998 \brief the text of the current item
+ − 1999
+ − 2000 By default, for an empty combo box or a combo box in which no current
+ − 2001 item is set, this property contains an empty string.
+ − 2002 */
+ − 2003 QString QComboBox::currentText() const
+ − 2004 {
+ − 2005 Q_D(const QComboBox);
+ − 2006 if (d->lineEdit)
+ − 2007 return d->lineEdit->text();
+ − 2008 else if (d->currentIndex.isValid())
+ − 2009 return d->itemText(d->currentIndex);
+ − 2010 else
+ − 2011 return QString();
+ − 2012 }
+ − 2013
+ − 2014 /*!
+ − 2015 Returns the text for the given \a index in the combobox.
+ − 2016 */
+ − 2017 QString QComboBox::itemText(int index) const
+ − 2018 {
+ − 2019 Q_D(const QComboBox);
+ − 2020 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2021 return d->itemText(mi);
+ − 2022 }
+ − 2023
+ − 2024 /*!
+ − 2025 Returns the icon for the given \a index in the combobox.
+ − 2026 */
+ − 2027 QIcon QComboBox::itemIcon(int index) const
+ − 2028 {
+ − 2029 Q_D(const QComboBox);
+ − 2030 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2031 return d->itemIcon(mi);
+ − 2032 }
+ − 2033
+ − 2034 /*!
+ − 2035 Returns the data for the given \a role in the given \a index in the
+ − 2036 combobox, or QVariant::Invalid if there is no data for this role.
+ − 2037 */
+ − 2038 QVariant QComboBox::itemData(int index, int role) const
+ − 2039 {
+ − 2040 Q_D(const QComboBox);
+ − 2041 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2042 return d->model->data(mi, role);
+ − 2043 }
+ − 2044
+ − 2045 /*!
+ − 2046 \fn void QComboBox::insertItem(int index, const QString &text, const QVariant &userData)
+ − 2047
+ − 2048 Inserts the \a text and \a userData (stored in the Qt::UserRole)
+ − 2049 into the combobox at the given \a index.
+ − 2050
+ − 2051 If the index is equal to or higher than the total number of items,
+ − 2052 the new item is appended to the list of existing items. If the
+ − 2053 index is zero or negative, the new item is prepended to the list
+ − 2054 of existing items.
+ − 2055
+ − 2056 \sa insertItems()
+ − 2057 */
+ − 2058
+ − 2059 /*!
+ − 2060
+ − 2061 Inserts the \a icon, \a text and \a userData (stored in the
+ − 2062 Qt::UserRole) into the combobox at the given \a index.
+ − 2063
+ − 2064 If the index is equal to or higher than the total number of items,
+ − 2065 the new item is appended to the list of existing items. If the
+ − 2066 index is zero or negative, the new item is prepended to the list
+ − 2067 of existing items.
+ − 2068
+ − 2069 \sa insertItems()
+ − 2070 */
+ − 2071 void QComboBox::insertItem(int index, const QIcon &icon, const QString &text, const QVariant &userData)
+ − 2072 {
+ − 2073 Q_D(QComboBox);
+ − 2074 int itemCount = count();
+ − 2075 index = qBound(0, index, itemCount);
+ − 2076 if (index >= d->maxCount)
+ − 2077 return;
+ − 2078
+ − 2079 // For the common case where we are using the built in QStandardItemModel
+ − 2080 // construct a QStandardItem, reducing the number of expensive signals from the model
+ − 2081 if (QStandardItemModel *m = qobject_cast<QStandardItemModel*>(d->model)) {
+ − 2082 QStandardItem *item = new QStandardItem(text);
+ − 2083 if (!icon.isNull()) item->setData(icon, Qt::DecorationRole);
+ − 2084 if (userData.isValid()) item->setData(userData, Qt::UserRole);
+ − 2085 m->insertRow(index, item);
+ − 2086 ++itemCount;
+ − 2087 } else {
+ − 2088 d->inserting = true;
+ − 2089 if (d->model->insertRows(index, 1, d->root)) {
+ − 2090 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2091 if (icon.isNull() && !userData.isValid()) {
+ − 2092 d->model->setData(item, text, Qt::EditRole);
+ − 2093 } else {
+ − 2094 QMap<int, QVariant> values;
+ − 2095 if (!text.isNull()) values.insert(Qt::EditRole, text);
+ − 2096 if (!icon.isNull()) values.insert(Qt::DecorationRole, icon);
+ − 2097 if (userData.isValid()) values.insert(Qt::UserRole, userData);
+ − 2098 if (!values.isEmpty()) d->model->setItemData(item, values);
+ − 2099 }
+ − 2100 d->inserting = false;
+ − 2101 d->_q_rowsInserted(d->root, index, index);
+ − 2102 ++itemCount;
+ − 2103 } else {
+ − 2104 d->inserting = false;
+ − 2105 }
+ − 2106 }
+ − 2107
+ − 2108 if (itemCount > d->maxCount)
+ − 2109 d->model->removeRows(itemCount - 1, itemCount - d->maxCount, d->root);
+ − 2110 }
+ − 2111
+ − 2112 /*!
+ − 2113 Inserts the strings from the \a list into the combobox as separate items,
+ − 2114 starting at the \a index specified.
+ − 2115
+ − 2116 If the index is equal to or higher than the total number of items, the new items
+ − 2117 are appended to the list of existing items. If the index is zero or negative, the
+ − 2118 new items are prepended to the list of existing items.
+ − 2119
+ − 2120 \sa insertItem()
+ − 2121 */
+ − 2122 void QComboBox::insertItems(int index, const QStringList &list)
+ − 2123 {
+ − 2124 Q_D(QComboBox);
+ − 2125 if (list.isEmpty())
+ − 2126 return;
+ − 2127 index = qBound(0, index, count());
+ − 2128 int insertCount = qMin(d->maxCount - index, list.count());
+ − 2129 if (insertCount <= 0)
+ − 2130 return;
+ − 2131 // For the common case where we are using the built in QStandardItemModel
+ − 2132 // construct a QStandardItem, reducing the number of expensive signals from the model
+ − 2133 if (QStandardItemModel *m = qobject_cast<QStandardItemModel*>(d->model)) {
+ − 2134 QList<QStandardItem *> items;
+ − 2135 QStandardItem *hiddenRoot = m->invisibleRootItem();
+ − 2136 for (int i = 0; i < insertCount; ++i)
+ − 2137 items.append(new QStandardItem(list.at(i)));
+ − 2138 hiddenRoot->insertRows(index, items);
+ − 2139 } else {
+ − 2140 d->inserting = true;
+ − 2141 if (d->model->insertRows(index, insertCount, d->root)) {
+ − 2142 QModelIndex item;
+ − 2143 for (int i = 0; i < insertCount; ++i) {
+ − 2144 item = d->model->index(i+index, d->modelColumn, d->root);
+ − 2145 d->model->setData(item, list.at(i), Qt::EditRole);
+ − 2146 }
+ − 2147 d->inserting = false;
+ − 2148 d->_q_rowsInserted(d->root, index, index + insertCount - 1);
+ − 2149 } else {
+ − 2150 d->inserting = false;
+ − 2151 }
+ − 2152 }
+ − 2153
+ − 2154 int mc = count();
+ − 2155 if (mc > d->maxCount)
+ − 2156 d->model->removeRows(d->maxCount, mc - d->maxCount, d->root);
+ − 2157 }
+ − 2158
+ − 2159 /*!
+ − 2160 \since 4.4
+ − 2161
+ − 2162 Inserts a separator item into the combobox at the given \a index.
+ − 2163
+ − 2164 If the index is equal to or higher than the total number of items, the new item
+ − 2165 is appended to the list of existing items. If the index is zero or negative, the
+ − 2166 new item is prepended to the list of existing items.
+ − 2167
+ − 2168 \sa insertItem()
+ − 2169 */
+ − 2170 void QComboBox::insertSeparator(int index)
+ − 2171 {
+ − 2172 Q_D(QComboBox);
+ − 2173 int itemCount = count();
+ − 2174 index = qBound(0, index, itemCount);
+ − 2175 if (index >= d->maxCount)
+ − 2176 return;
+ − 2177 insertItem(index, QIcon(), QString());
+ − 2178 QComboBoxDelegate::setSeparator(d->model, d->model->index(index, 0, d->root));
+ − 2179 }
+ − 2180
+ − 2181 /*!
+ − 2182 Removes the item at the given \a index from the combobox.
+ − 2183 This will update the current index if the index is removed.
+ − 2184
+ − 2185 This function does nothing if \a index is out of range.
+ − 2186 */
+ − 2187 void QComboBox::removeItem(int index)
+ − 2188 {
+ − 2189 Q_D(QComboBox);
+ − 2190 if (index < 0 || index >= count())
+ − 2191 return;
+ − 2192 d->model->removeRows(index, 1, d->root);
+ − 2193 }
+ − 2194
+ − 2195 /*!
+ − 2196 Sets the \a text for the item on the given \a index in the combobox.
+ − 2197 */
+ − 2198 void QComboBox::setItemText(int index, const QString &text)
+ − 2199 {
+ − 2200 Q_D(const QComboBox);
+ − 2201 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2202 if (item.isValid()) {
+ − 2203 d->model->setData(item, text, Qt::EditRole);
+ − 2204 }
+ − 2205 }
+ − 2206
+ − 2207 /*!
+ − 2208 Sets the \a icon for the item on the given \a index in the combobox.
+ − 2209 */
+ − 2210 void QComboBox::setItemIcon(int index, const QIcon &icon)
+ − 2211 {
+ − 2212 Q_D(const QComboBox);
+ − 2213 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2214 if (item.isValid()) {
+ − 2215 d->model->setData(item, icon, Qt::DecorationRole);
+ − 2216 }
+ − 2217 }
+ − 2218
+ − 2219 /*!
+ − 2220 Sets the data \a role for the item on the given \a index in the combobox
+ − 2221 to the specified \a value.
+ − 2222 */
+ − 2223 void QComboBox::setItemData(int index, const QVariant &value, int role)
+ − 2224 {
+ − 2225 Q_D(const QComboBox);
+ − 2226 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2227 if (item.isValid()) {
+ − 2228 d->model->setData(item, value, role);
+ − 2229 }
+ − 2230 }
+ − 2231
+ − 2232 /*!
+ − 2233 Returns the list view used for the combobox popup.
+ − 2234 */
+ − 2235 QAbstractItemView *QComboBox::view() const
+ − 2236 {
+ − 2237 Q_D(const QComboBox);
+ − 2238 return const_cast<QComboBoxPrivate*>(d)->viewContainer()->itemView();
+ − 2239 }
+ − 2240
+ − 2241 /*!
+ − 2242 Sets the view to be used in the combobox popup to the given \a
+ − 2243 itemView. The combobox takes ownership of the view.
+ − 2244
+ − 2245 Note: If you want to use the convenience views (like QListWidget,
+ − 2246 QTableWidget or QTreeWidget), make sure to call setModel() on the
+ − 2247 combobox with the convenience widgets model before calling this
+ − 2248 function.
+ − 2249 */
+ − 2250 void QComboBox::setView(QAbstractItemView *itemView)
+ − 2251 {
+ − 2252 Q_D(QComboBox);
+ − 2253 if (!itemView) {
+ − 2254 qWarning("QComboBox::setView: cannot set a 0 view");
+ − 2255 return;
+ − 2256 }
+ − 2257
+ − 2258 if (itemView->model() != d->model)
+ − 2259 itemView->setModel(d->model);
+ − 2260 d->viewContainer()->setItemView(itemView);
+ − 2261 }
+ − 2262
+ − 2263 /*!
+ − 2264 \reimp
+ − 2265 */
+ − 2266 QSize QComboBox::minimumSizeHint() const
+ − 2267 {
+ − 2268 Q_D(const QComboBox);
+ − 2269 return d->recomputeSizeHint(d->minimumSizeHint);
+ − 2270 }
+ − 2271
+ − 2272 /*!
+ − 2273 \reimp
+ − 2274
+ − 2275 This implementation caches the size hint to avoid resizing when
+ − 2276 the contents change dynamically. To invalidate the cached value
+ − 2277 change the \l sizeAdjustPolicy.
+ − 2278 */
+ − 2279 QSize QComboBox::sizeHint() const
+ − 2280 {
+ − 2281 Q_D(const QComboBox);
+ − 2282 return d->recomputeSizeHint(d->sizeHint);
+ − 2283 }
+ − 2284
+ − 2285 /*!
+ − 2286 Displays the list of items in the combobox. If the list is empty
+ − 2287 then the no items will be shown.
+ − 2288
+ − 2289 If you reimplement this function to show a custom pop-up, make
+ − 2290 sure you call hidePopup() to reset the internal state.
+ − 2291
+ − 2292 \sa hidePopup()
+ − 2293 */
+ − 2294 void QComboBox::showPopup()
+ − 2295 {
+ − 2296 Q_D(QComboBox);
+ − 2297 if (count() <= 0)
+ − 2298 return;
+ − 2299
+ − 2300 #ifdef QT_KEYPAD_NAVIGATION
+ − 2301 #ifndef QT_NO_COMPLETER
+ − 2302 if (QApplication::keypadNavigationEnabled() && d->completer) {
+ − 2303 // editable combo box is line edit plus completer
+ − 2304 setEditFocus(true);
+ − 2305 d->completer->complete(); // show popup
+ − 2306 return;
+ − 2307 }
+ − 2308 #endif
+ − 2309 #endif
+ − 2310
+ − 2311 QStyle * const style = this->style();
+ − 2312
+ − 2313 // set current item and select it
+ − 2314 view()->selectionModel()->setCurrentIndex(d->currentIndex,
+ − 2315 QItemSelectionModel::ClearAndSelect);
+ − 2316 QComboBoxPrivateContainer* container = d->viewContainer();
+ − 2317 QStyleOptionComboBox opt;
+ − 2318 initStyleOption(&opt);
+ − 2319 QRect listRect(style->subControlRect(QStyle::CC_ComboBox, &opt,
+ − 2320 QStyle::SC_ComboBoxListBoxPopup, this));
+ − 2321 QRect screen = d->popupGeometry(QApplication::desktop()->screenNumber(this));
+ − 2322 QPoint below = mapToGlobal(listRect.bottomLeft());
+ − 2323 int belowHeight = screen.bottom() - below.y();
+ − 2324 QPoint above = mapToGlobal(listRect.topLeft());
+ − 2325 int aboveHeight = above.y() - screen.y();
+ − 2326 bool boundToScreen = !window()->testAttribute(Qt::WA_DontShowOnScreen);
+ − 2327
+ − 2328 const bool usePopup = style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this);
+ − 2329 {
+ − 2330 int listHeight = 0;
+ − 2331 int count = 0;
+ − 2332 QStack<QModelIndex> toCheck;
+ − 2333 toCheck.push(view()->rootIndex());
+ − 2334 #ifndef QT_NO_TREEVIEW
+ − 2335 QTreeView *treeView = qobject_cast<QTreeView*>(view());
+ − 2336 if (treeView && treeView->header() && !treeView->header()->isHidden())
+ − 2337 listHeight += treeView->header()->height();
+ − 2338 #endif
+ − 2339 while (!toCheck.isEmpty()) {
+ − 2340 QModelIndex parent = toCheck.pop();
+ − 2341 for (int i = 0; i < d->model->rowCount(parent); ++i) {
+ − 2342 QModelIndex idx = d->model->index(i, d->modelColumn, parent);
+ − 2343 if (!idx.isValid())
+ − 2344 continue;
+ − 2345 listHeight += view()->visualRect(idx).height() + container->spacing();
+ − 2346 #ifndef QT_NO_TREEVIEW
+ − 2347 if (d->model->hasChildren(idx) && treeView && treeView->isExpanded(idx))
+ − 2348 toCheck.push(idx);
+ − 2349 #endif
+ − 2350 ++count;
+ − 2351 if (!usePopup && count > d->maxVisibleItems) {
+ − 2352 toCheck.clear();
+ − 2353 break;
+ − 2354 }
+ − 2355 }
+ − 2356 }
+ − 2357 listRect.setHeight(listHeight);
+ − 2358 }
+ − 2359
+ − 2360 {
+ − 2361 // add the spacing for the grid on the top and the bottom;
+ − 2362 int heightMargin = 2*container->spacing();
+ − 2363
+ − 2364 // add the frame of the container
+ − 2365 int marginTop, marginBottom;
+ − 2366 container->getContentsMargins(0, &marginTop, 0, &marginBottom);
+ − 2367 heightMargin += marginTop + marginBottom;
+ − 2368
+ − 2369 //add the frame of the view
+ − 2370 view()->getContentsMargins(0, &marginTop, 0, &marginBottom);
+ − 2371 marginTop += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->top;
+ − 2372 marginBottom += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->bottom;
+ − 2373 heightMargin += marginTop + marginBottom;
+ − 2374
+ − 2375 listRect.setHeight(listRect.height() + heightMargin);
+ − 2376 }
+ − 2377
+ − 2378 // Add space for margin at top and bottom if the style wants it.
+ − 2379 if (usePopup)
+ − 2380 listRect.setHeight(listRect.height() + style->pixelMetric(QStyle::PM_MenuVMargin, &opt, this) * 2);
+ − 2381
+ − 2382 // Make sure the popup is wide enough to display its contents.
+ − 2383 if (usePopup) {
+ − 2384 const int diff = d->computeWidthHint() - width();
+ − 2385 if (diff > 0)
+ − 2386 listRect.setWidth(listRect.width() + diff);
+ − 2387 }
+ − 2388
+ − 2389 //we need to activate the layout to make sure the min/maximum size are set when the widget was not yet show
+ − 2390 container->layout()->activate();
+ − 2391 //takes account of the minimum/maximum size of the container
+ − 2392 listRect.setSize( listRect.size().expandedTo(container->minimumSize())
+ − 2393 .boundedTo(container->maximumSize()));
+ − 2394
+ − 2395 // make sure the widget fits on screen
+ − 2396 if (boundToScreen) {
+ − 2397 if (listRect.width() > screen.width() )
+ − 2398 listRect.setWidth(screen.width());
+ − 2399 if (mapToGlobal(listRect.bottomRight()).x() > screen.right()) {
+ − 2400 below.setX(screen.x() + screen.width() - listRect.width());
+ − 2401 above.setX(screen.x() + screen.width() - listRect.width());
+ − 2402 }
+ − 2403 if (mapToGlobal(listRect.topLeft()).x() < screen.x() ) {
+ − 2404 below.setX(screen.x());
+ − 2405 above.setX(screen.x());
+ − 2406 }
+ − 2407 }
+ − 2408
+ − 2409 if (usePopup) {
+ − 2410 // Position horizontally.
+ − 2411 listRect.moveLeft(above.x());
+ − 2412
+ − 2413 // Position vertically so the curently selected item lines up
+ − 2414 // with the combo box.
+ − 2415 const QRect currentItemRect = view()->visualRect(view()->currentIndex());
+ − 2416 const int offset = listRect.top() - currentItemRect.top();
+ − 2417 listRect.moveTop(above.y() + offset - listRect.top());
+ − 2418
+ − 2419
+ − 2420 // Clamp the listRect height and vertical position so we don't expand outside the
+ − 2421 // available screen geometry.This may override the vertical position, but it is more
+ − 2422 // important to show as much as possible of the popup.
+ − 2423 const int height = !boundToScreen ? listRect.height() : qMin(listRect.height(), screen.height());
+ − 2424 listRect.setHeight(height);
+ − 2425 if (boundToScreen) {
+ − 2426 if (listRect.top() < screen.top())
+ − 2427 listRect.moveTop(screen.top());
+ − 2428 if (listRect.bottom() > screen.bottom())
+ − 2429 listRect.moveBottom(screen.bottom());
+ − 2430 }
+ − 2431 } else if (!boundToScreen || listRect.height() <= belowHeight) {
+ − 2432 listRect.moveTopLeft(below);
+ − 2433 } else if (listRect.height() <= aboveHeight) {
+ − 2434 listRect.moveBottomLeft(above);
+ − 2435 } else if (belowHeight >= aboveHeight) {
+ − 2436 listRect.setHeight(belowHeight);
+ − 2437 listRect.moveTopLeft(below);
+ − 2438 } else {
+ − 2439 listRect.setHeight(aboveHeight);
+ − 2440 listRect.moveBottomLeft(above);
+ − 2441 }
+ − 2442
+ − 2443 #ifndef QT_NO_IM
+ − 2444 if (QInputContext *qic = inputContext())
+ − 2445 qic->reset();
+ − 2446 #endif
+ − 2447 QScrollBar *sb = view()->horizontalScrollBar();
+ − 2448 Qt::ScrollBarPolicy policy = view()->horizontalScrollBarPolicy();
+ − 2449 bool needHorizontalScrollBar = (policy == Qt::ScrollBarAsNeeded || policy == Qt::ScrollBarAlwaysOn)
+ − 2450 && sb->minimum() < sb->maximum();
+ − 2451 if (needHorizontalScrollBar) {
+ − 2452 listRect.adjust(0, 0, 0, sb->height());
+ − 2453 }
+ − 2454 container->setGeometry(listRect);
+ − 2455
+ − 2456 #ifndef Q_WS_MAC
+ − 2457 const bool updatesEnabled = container->updatesEnabled();
+ − 2458 #endif
+ − 2459
+ − 2460 #if defined(Q_WS_WIN) && !defined(QT_NO_EFFECTS)
+ − 2461 bool scrollDown = (listRect.topLeft() == below);
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 2462 if (QApplication::isEffectEnabled(Qt::UI_AnimateCombo)
0
+ − 2463 && !style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this) && !window()->testAttribute(Qt::WA_DontShowOnScreen))
+ − 2464 qScrollEffect(container, scrollDown ? QEffects::DownScroll : QEffects::UpScroll, 150);
+ − 2465 #endif
+ − 2466
+ − 2467 // Don't disable updates on Mac OS X. Windows are displayed immediately on this platform,
+ − 2468 // which means that the window will be visible before the call to container->show() returns.
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 2469 // If updates are disabled at this point we'll miss our chance at painting the popup
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 2470 // menu before it's shown, causing flicker since the window then displays the standard gray
0
+ − 2471 // background.
+ − 2472 #ifndef Q_WS_MAC
+ − 2473 container->setUpdatesEnabled(false);
+ − 2474 #endif
+ − 2475
+ − 2476 container->raise();
+ − 2477 container->show();
+ − 2478 container->updateScrollers();
+ − 2479 view()->setFocus();
+ − 2480
+ − 2481 view()->scrollTo(view()->currentIndex(),
+ − 2482 style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)
+ − 2483 ? QAbstractItemView::PositionAtCenter
+ − 2484 : QAbstractItemView::EnsureVisible);
+ − 2485
+ − 2486 #ifndef Q_WS_MAC
+ − 2487 container->setUpdatesEnabled(updatesEnabled);
+ − 2488 #endif
+ − 2489
+ − 2490 container->update();
+ − 2491 #ifdef QT_KEYPAD_NAVIGATION
+ − 2492 if (QApplication::keypadNavigationEnabled())
+ − 2493 view()->setEditFocus(true);
+ − 2494 #endif
+ − 2495 }
+ − 2496
+ − 2497 /*!
+ − 2498 Hides the list of items in the combobox if it is currently visible
+ − 2499 and resets the internal state, so that if the custom pop-up was
+ − 2500 shown inside the reimplemented showPopup(), then you also need to
+ − 2501 reimplement the hidePopup() function to hide your custom pop-up
+ − 2502 and call the base class implementation to reset the internal state
+ − 2503 whenever your custom pop-up widget is hidden.
+ − 2504
+ − 2505 \sa showPopup()
+ − 2506 */
+ − 2507 void QComboBox::hidePopup()
+ − 2508 {
+ − 2509 Q_D(QComboBox);
+ − 2510 if (d->container && d->container->isVisible()) {
+ − 2511 #if !defined(QT_NO_EFFECTS)
+ − 2512 d->model->blockSignals(true);
+ − 2513 d->container->itemView()->blockSignals(true);
+ − 2514 d->container->blockSignals(true);
+ − 2515 // Flash selected/triggered item (if any).
+ − 2516 if (style()->styleHint(QStyle::SH_Menu_FlashTriggeredItem)) {
+ − 2517 QItemSelectionModel *selectionModel = view() ? view()->selectionModel() : 0;
+ − 2518 if (selectionModel && selectionModel->hasSelection()) {
+ − 2519 QEventLoop eventLoop;
+ − 2520 const QItemSelection selection = selectionModel->selection();
+ − 2521
+ − 2522 // Deselect item and wait 60 ms.
+ − 2523 selectionModel->select(selection, QItemSelectionModel::Toggle);
+ − 2524 QTimer::singleShot(60, &eventLoop, SLOT(quit()));
+ − 2525 eventLoop.exec();
+ − 2526
+ − 2527 // Select item and wait 20 ms.
+ − 2528 selectionModel->select(selection, QItemSelectionModel::Toggle);
+ − 2529 QTimer::singleShot(20, &eventLoop, SLOT(quit()));
+ − 2530 eventLoop.exec();
+ − 2531 }
+ − 2532 }
+ − 2533
+ − 2534 // Fade out.
+ − 2535 bool needFade = style()->styleHint(QStyle::SH_Menu_FadeOutOnHide);
+ − 2536 if (needFade) {
+ − 2537 #if defined(Q_WS_MAC)
+ − 2538 macWindowFade(qt_mac_window_for(d->container));
+ − 2539 #endif // Q_WS_MAC
+ − 2540 // Other platform implementations welcome :-)
+ − 2541 }
+ − 2542 d->model->blockSignals(false);
+ − 2543 d->container->itemView()->blockSignals(false);
+ − 2544 d->container->blockSignals(false);
+ − 2545
+ − 2546 if (!needFade)
+ − 2547 #endif // QT_NO_EFFECTS
+ − 2548 // Fade should implicitly hide as well ;-)
+ − 2549 d->container->hide();
+ − 2550 }
+ − 2551 #ifdef QT_KEYPAD_NAVIGATION
+ − 2552 if (QApplication::keypadNavigationEnabled() && isEditable() && hasFocus())
+ − 2553 setEditFocus(true);
+ − 2554 #endif
+ − 2555 d->_q_resetButton();
+ − 2556 }
+ − 2557
+ − 2558 /*!
+ − 2559 Clears the combobox, removing all items.
+ − 2560
+ − 2561 Note: If you have set an external model on the combobox this model
+ − 2562 will still be cleared when calling this function.
+ − 2563 */
+ − 2564 void QComboBox::clear()
+ − 2565 {
+ − 2566 Q_D(QComboBox);
+ − 2567 d->model->removeRows(0, d->model->rowCount(d->root), d->root);
+ − 2568 }
+ − 2569
+ − 2570 /*!
+ − 2571 \fn void QComboBox::clearValidator()
+ − 2572
+ − 2573 Use setValidator(0) instead.
+ − 2574 */
+ − 2575
+ − 2576 /*!
+ − 2577 Clears the contents of the line edit used for editing in the combobox.
+ − 2578 */
+ − 2579 void QComboBox::clearEditText()
+ − 2580 {
+ − 2581 Q_D(QComboBox);
+ − 2582 if (d->lineEdit)
+ − 2583 d->lineEdit->clear();
+ − 2584 }
+ − 2585
+ − 2586 /*!
+ − 2587 Sets the \a text in the combobox's text edit.
+ − 2588 */
+ − 2589 void QComboBox::setEditText(const QString &text)
+ − 2590 {
+ − 2591 Q_D(QComboBox);
+ − 2592 if (d->lineEdit)
+ − 2593 d->lineEdit->setText(text);
+ − 2594 }
+ − 2595
+ − 2596 /*!
+ − 2597 \reimp
+ − 2598 */
+ − 2599 void QComboBox::focusInEvent(QFocusEvent *e)
+ − 2600 {
+ − 2601 Q_D(QComboBox);
+ − 2602 update();
+ − 2603 if (d->lineEdit) {
+ − 2604 d->lineEdit->event(e);
+ − 2605 #ifndef QT_NO_COMPLETER
+ − 2606 if (d->lineEdit->completer())
+ − 2607 d->lineEdit->completer()->setWidget(this);
+ − 2608 #endif
+ − 2609 }
+ − 2610 }
+ − 2611
+ − 2612 /*!
+ − 2613 \reimp
+ − 2614 */
+ − 2615 void QComboBox::focusOutEvent(QFocusEvent *e)
+ − 2616 {
+ − 2617 Q_D(QComboBox);
+ − 2618 update();
+ − 2619 if (d->lineEdit)
+ − 2620 d->lineEdit->event(e);
+ − 2621 }
+ − 2622
+ − 2623 /*! \reimp */
+ − 2624 void QComboBox::changeEvent(QEvent *e)
+ − 2625 {
+ − 2626 Q_D(QComboBox);
+ − 2627 switch (e->type()) {
+ − 2628 case QEvent::StyleChange:
+ − 2629 d->updateDelegate();
+ − 2630 #ifdef Q_WS_MAC
+ − 2631 case QEvent::MacSizeChange:
+ − 2632 #endif
+ − 2633 d->sizeHint = QSize(); // invalidate size hint
+ − 2634 d->minimumSizeHint = QSize();
+ − 2635 d->updateLayoutDirection();
+ − 2636 if (d->lineEdit)
+ − 2637 d->updateLineEditGeometry();
+ − 2638 d->setLayoutItemMargins(QStyle::SE_ComboBoxLayoutItem);
+ − 2639 // ### need to update scrollers etc. as well here
+ − 2640 break;
+ − 2641 case QEvent::EnabledChange:
+ − 2642 if (!isEnabled())
+ − 2643 hidePopup();
+ − 2644 break;
+ − 2645 case QEvent::PaletteChange: {
+ − 2646 d->updateViewContainerPaletteAndOpacity();
+ − 2647 break;
+ − 2648 }
+ − 2649 case QEvent::FontChange:
+ − 2650 d->sizeHint = QSize(); // invalidate size hint
+ − 2651 d->viewContainer()->setFont(font());
+ − 2652 if (d->lineEdit)
+ − 2653 d->updateLineEditGeometry();
+ − 2654 break;
+ − 2655 default:
+ − 2656 break;
+ − 2657 }
+ − 2658 QWidget::changeEvent(e);
+ − 2659 }
+ − 2660
+ − 2661 /*!
+ − 2662 \reimp
+ − 2663 */
+ − 2664 void QComboBox::resizeEvent(QResizeEvent *)
+ − 2665 {
+ − 2666 Q_D(QComboBox);
+ − 2667 d->updateLineEditGeometry();
+ − 2668 }
+ − 2669
+ − 2670 /*!
+ − 2671 \reimp
+ − 2672 */
+ − 2673 void QComboBox::paintEvent(QPaintEvent *)
+ − 2674 {
+ − 2675 QStylePainter painter(this);
+ − 2676 painter.setPen(palette().color(QPalette::Text));
+ − 2677
+ − 2678 // draw the combobox frame, focusrect and selected etc.
+ − 2679 QStyleOptionComboBox opt;
+ − 2680 initStyleOption(&opt);
+ − 2681 painter.drawComplexControl(QStyle::CC_ComboBox, opt);
+ − 2682
+ − 2683 // draw the icon and text
+ − 2684 painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
+ − 2685 }
+ − 2686
+ − 2687 /*!
+ − 2688 \reimp
+ − 2689 */
+ − 2690 void QComboBox::showEvent(QShowEvent *e)
+ − 2691 {
+ − 2692 Q_D(QComboBox);
+ − 2693 if (!d->shownOnce && d->sizeAdjustPolicy == QComboBox::AdjustToContentsOnFirstShow) {
+ − 2694 d->sizeHint = QSize();
+ − 2695 updateGeometry();
+ − 2696 }
+ − 2697 d->shownOnce = true;
+ − 2698 QWidget::showEvent(e);
+ − 2699 }
+ − 2700
+ − 2701 /*!
+ − 2702 \reimp
+ − 2703 */
+ − 2704 void QComboBox::hideEvent(QHideEvent *)
+ − 2705 {
+ − 2706 hidePopup();
+ − 2707 }
+ − 2708
+ − 2709 /*!
+ − 2710 \reimp
+ − 2711 */
+ − 2712 bool QComboBox::event(QEvent *event)
+ − 2713 {
+ − 2714 Q_D(QComboBox);
+ − 2715 switch(event->type()) {
+ − 2716 case QEvent::LayoutDirectionChange:
+ − 2717 case QEvent::ApplicationLayoutDirectionChange:
+ − 2718 d->updateLayoutDirection();
+ − 2719 d->updateLineEditGeometry();
+ − 2720 break;
+ − 2721 case QEvent::HoverEnter:
+ − 2722 case QEvent::HoverLeave:
+ − 2723 case QEvent::HoverMove:
+ − 2724 if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event))
+ − 2725 d->updateHoverControl(he->pos());
+ − 2726 break;
+ − 2727 case QEvent::ShortcutOverride:
+ − 2728 if (d->lineEdit)
+ − 2729 return d->lineEdit->event(event);
+ − 2730 break;
+ − 2731 #ifdef QT_KEYPAD_NAVIGATION
+ − 2732 case QEvent::EnterEditFocus:
+ − 2733 if (!d->lineEdit)
+ − 2734 setEditFocus(false); // We never want edit focus if we are not editable
+ − 2735 else
+ − 2736 d->lineEdit->event(event); //so cursor starts
+ − 2737 break;
+ − 2738 case QEvent::LeaveEditFocus:
+ − 2739 if (d->lineEdit)
+ − 2740 d->lineEdit->event(event); //so cursor stops
+ − 2741 break;
+ − 2742 #endif
+ − 2743 default:
+ − 2744 break;
+ − 2745 }
+ − 2746 return QWidget::event(event);
+ − 2747 }
+ − 2748
+ − 2749 /*!
+ − 2750 \reimp
+ − 2751 */
+ − 2752 void QComboBox::mousePressEvent(QMouseEvent *e)
+ − 2753 {
+ − 2754 Q_D(QComboBox);
+ − 2755 QStyleOptionComboBox opt;
+ − 2756 initStyleOption(&opt);
+ − 2757 QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt, e->pos(),
+ − 2758 this);
+ − 2759 if (e->button() == Qt::LeftButton && (sc == QStyle::SC_ComboBoxArrow || !isEditable())
+ − 2760 && !d->viewContainer()->isVisible()) {
+ − 2761 if (sc == QStyle::SC_ComboBoxArrow)
+ − 2762 d->updateArrow(QStyle::State_Sunken);
+ − 2763 #ifdef QT_KEYPAD_NAVIGATION
+ − 2764 if (!d->lineEdit) {
+ − 2765 #endif
+ − 2766 // We've restricted the next couple of lines, because by not calling
+ − 2767 // viewContainer(), we avoid creating the QComboBoxPrivateContainer.
+ − 2768 d->viewContainer()->blockMouseReleaseTimer.start(QApplication::doubleClickInterval());
+ − 2769 d->viewContainer()->initialClickPosition = mapToGlobal(e->pos());
+ − 2770 #ifdef QT_KEYPAD_NAVIGATION
+ − 2771 }
+ − 2772 #endif
+ − 2773 showPopup();
+ − 2774 } else {
+ − 2775 #ifdef QT_KEYPAD_NAVIGATION
+ − 2776 if (QApplication::keypadNavigationEnabled() && sc == QStyle::SC_ComboBoxEditField && d->lineEdit) {
+ − 2777 d->lineEdit->event(e); //so lineedit can move cursor, etc
+ − 2778 return;
+ − 2779 }
+ − 2780 #endif
+ − 2781 QWidget::mousePressEvent(e);
+ − 2782 }
+ − 2783 }
+ − 2784
+ − 2785 /*!
+ − 2786 \reimp
+ − 2787 */
+ − 2788 void QComboBox::mouseReleaseEvent(QMouseEvent *e)
+ − 2789 {
+ − 2790 Q_D(QComboBox);
+ − 2791 Q_UNUSED(e);
+ − 2792 d->updateArrow(QStyle::State_None);
+ − 2793 }
+ − 2794
+ − 2795 /*!
+ − 2796 \reimp
+ − 2797 */
+ − 2798 void QComboBox::keyPressEvent(QKeyEvent *e)
+ − 2799 {
+ − 2800 Q_D(QComboBox);
+ − 2801
+ − 2802 #ifndef QT_NO_COMPLETER
+ − 2803 if (d->lineEdit
+ − 2804 && d->lineEdit->completer()
+ − 2805 && d->lineEdit->completer()->popup()
+ − 2806 && d->lineEdit->completer()->popup()->isVisible()) {
+ − 2807 // provide same autocompletion support as line edit
+ − 2808 d->lineEdit->event(e);
+ − 2809 return;
+ − 2810 }
+ − 2811 #endif
+ − 2812
+ − 2813 enum Move { NoMove=0 , MoveUp , MoveDown , MoveFirst , MoveLast};
+ − 2814
+ − 2815 Move move = NoMove;
+ − 2816 int newIndex = currentIndex();
+ − 2817 switch (e->key()) {
+ − 2818 case Qt::Key_Up:
+ − 2819 if (e->modifiers() & Qt::ControlModifier)
+ − 2820 break; // pass to line edit for auto completion
+ − 2821 case Qt::Key_PageUp:
+ − 2822 #ifdef QT_KEYPAD_NAVIGATION
+ − 2823 if (QApplication::keypadNavigationEnabled())
+ − 2824 e->ignore();
+ − 2825 else
+ − 2826 #endif
+ − 2827 move = MoveUp;
+ − 2828 break;
+ − 2829 case Qt::Key_Down:
+ − 2830 if (e->modifiers() & Qt::AltModifier) {
+ − 2831 showPopup();
+ − 2832 return;
+ − 2833 } else if (e->modifiers() & Qt::ControlModifier)
+ − 2834 break; // pass to line edit for auto completion
+ − 2835 // fall through
+ − 2836 case Qt::Key_PageDown:
+ − 2837 #ifdef QT_KEYPAD_NAVIGATION
+ − 2838 if (QApplication::keypadNavigationEnabled())
+ − 2839 e->ignore();
+ − 2840 else
+ − 2841 #endif
+ − 2842 move = MoveDown;
+ − 2843 break;
+ − 2844 case Qt::Key_Home:
+ − 2845 if (!d->lineEdit)
+ − 2846 move = MoveFirst;
+ − 2847 break;
+ − 2848 case Qt::Key_End:
+ − 2849 if (!d->lineEdit)
+ − 2850 move = MoveLast;
+ − 2851 break;
+ − 2852 case Qt::Key_F4:
+ − 2853 if (!e->modifiers()) {
+ − 2854 showPopup();
+ − 2855 return;
+ − 2856 }
+ − 2857 break;
+ − 2858 case Qt::Key_Space:
+ − 2859 if (!d->lineEdit) {
+ − 2860 showPopup();
+ − 2861 return;
+ − 2862 }
+ − 2863 case Qt::Key_Enter:
+ − 2864 case Qt::Key_Return:
+ − 2865 case Qt::Key_Escape:
+ − 2866 if (!d->lineEdit)
+ − 2867 e->ignore();
+ − 2868 break;
+ − 2869 #ifdef QT_KEYPAD_NAVIGATION
+ − 2870 case Qt::Key_Select:
+ − 2871 if (QApplication::keypadNavigationEnabled()
+ − 2872 && (!hasEditFocus() || !d->lineEdit)) {
+ − 2873 showPopup();
+ − 2874 return;
+ − 2875 }
+ − 2876 break;
+ − 2877 case Qt::Key_Left:
+ − 2878 case Qt::Key_Right:
+ − 2879 if (QApplication::keypadNavigationEnabled() && !hasEditFocus())
+ − 2880 e->ignore();
+ − 2881 break;
+ − 2882 case Qt::Key_Back:
+ − 2883 if (QApplication::keypadNavigationEnabled()) {
+ − 2884 if (!hasEditFocus() || !d->lineEdit)
+ − 2885 e->ignore();
+ − 2886 } else {
+ − 2887 e->ignore(); // let the surounding dialog have it
+ − 2888 }
+ − 2889 break;
+ − 2890 #endif
+ − 2891 default:
+ − 2892 if (!d->lineEdit) {
+ − 2893 if (!e->text().isEmpty())
+ − 2894 d->keyboardSearchString(e->text());
+ − 2895 else
+ − 2896 e->ignore();
+ − 2897 }
+ − 2898 }
+ − 2899
+ − 2900 if (move != NoMove) {
+ − 2901 e->accept();
+ − 2902 switch (move) {
+ − 2903 case MoveFirst:
+ − 2904 newIndex = -1;
+ − 2905 case MoveDown:
+ − 2906 newIndex++;
+ − 2907 while ((newIndex < count()) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2908 newIndex++;
+ − 2909 break;
+ − 2910 case MoveLast:
+ − 2911 newIndex = count();
+ − 2912 case MoveUp:
+ − 2913 newIndex--;
+ − 2914 while ((newIndex >= 0) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2915 newIndex--;
+ − 2916 break;
+ − 2917 default:
+ − 2918 e->ignore();
+ − 2919 break;
+ − 2920 }
+ − 2921
+ − 2922 if (newIndex >= 0 && newIndex < count() && newIndex != currentIndex()) {
+ − 2923 setCurrentIndex(newIndex);
+ − 2924 d->emitActivated(d->currentIndex);
+ − 2925 }
+ − 2926 } else if (d->lineEdit) {
+ − 2927 d->lineEdit->event(e);
+ − 2928 }
+ − 2929 }
+ − 2930
+ − 2931
+ − 2932 /*!
+ − 2933 \reimp
+ − 2934 */
+ − 2935 void QComboBox::keyReleaseEvent(QKeyEvent *e)
+ − 2936 {
+ − 2937 Q_D(QComboBox);
+ − 2938 if (d->lineEdit)
+ − 2939 d->lineEdit->event(e);
+ − 2940 }
+ − 2941
+ − 2942 /*!
+ − 2943 \reimp
+ − 2944 */
+ − 2945 #ifndef QT_NO_WHEELEVENT
+ − 2946 void QComboBox::wheelEvent(QWheelEvent *e)
+ − 2947 {
+ − 2948 Q_D(QComboBox);
+ − 2949 if (!d->viewContainer()->isVisible()) {
+ − 2950 int newIndex = currentIndex();
+ − 2951
+ − 2952 if (e->delta() > 0) {
+ − 2953 newIndex--;
+ − 2954 while ((newIndex >= 0) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2955 newIndex--;
+ − 2956 } else {
+ − 2957 newIndex++;
+ − 2958 while ((newIndex < count()) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2959 newIndex++;
+ − 2960 }
+ − 2961
+ − 2962 if (newIndex >= 0 && newIndex < count() && newIndex != currentIndex()) {
+ − 2963 setCurrentIndex(newIndex);
+ − 2964 d->emitActivated(d->currentIndex);
+ − 2965 }
+ − 2966 e->accept();
+ − 2967 }
+ − 2968 }
+ − 2969 #endif
+ − 2970
+ − 2971 #ifndef QT_NO_CONTEXTMENU
+ − 2972 /*!
+ − 2973 \reimp
+ − 2974 */
+ − 2975 void QComboBox::contextMenuEvent(QContextMenuEvent *e)
+ − 2976 {
+ − 2977 Q_D(QComboBox);
+ − 2978 if (d->lineEdit) {
+ − 2979 Qt::ContextMenuPolicy p = d->lineEdit->contextMenuPolicy();
+ − 2980 d->lineEdit->setContextMenuPolicy(Qt::DefaultContextMenu);
+ − 2981 d->lineEdit->event(e);
+ − 2982 d->lineEdit->setContextMenuPolicy(p);
+ − 2983 }
+ − 2984 }
+ − 2985 #endif // QT_NO_CONTEXTMENU
+ − 2986
+ − 2987 void QComboBoxPrivate::keyboardSearchString(const QString &text)
+ − 2988 {
+ − 2989 // use keyboardSearch from the listView so we do not duplicate code
+ − 2990 QAbstractItemView *view = viewContainer()->itemView();
+ − 2991 view->setCurrentIndex(currentIndex);
+ − 2992 int currentRow = view->currentIndex().row();
+ − 2993 view->keyboardSearch(text);
+ − 2994 if (currentRow != view->currentIndex().row()) {
+ − 2995 setCurrentIndex(view->currentIndex());
+ − 2996 emitActivated(currentIndex);
+ − 2997 }
+ − 2998 }
+ − 2999
+ − 3000 void QComboBoxPrivate::modelChanged()
+ − 3001 {
+ − 3002 Q_Q(QComboBox);
+ − 3003
+ − 3004 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 3005 sizeHint = QSize();
+ − 3006 adjustComboBoxSize();
+ − 3007 q->updateGeometry();
+ − 3008 }
+ − 3009 }
+ − 3010
+ − 3011 /*!
+ − 3012 \reimp
+ − 3013 */
+ − 3014 void QComboBox::inputMethodEvent(QInputMethodEvent *e)
+ − 3015 {
+ − 3016 Q_D(QComboBox);
+ − 3017 if (d->lineEdit) {
+ − 3018 d->lineEdit->event(e);
+ − 3019 } else {
+ − 3020 if (!e->commitString().isEmpty())
+ − 3021 d->keyboardSearchString(e->commitString());
+ − 3022 else
+ − 3023 e->ignore();
+ − 3024 }
+ − 3025 }
+ − 3026
+ − 3027 /*!
+ − 3028 \reimp
+ − 3029 */
+ − 3030 QVariant QComboBox::inputMethodQuery(Qt::InputMethodQuery query) const
+ − 3031 {
+ − 3032 Q_D(const QComboBox);
+ − 3033 if (d->lineEdit)
+ − 3034 return d->lineEdit->inputMethodQuery(query);
+ − 3035 return QWidget::inputMethodQuery(query);
+ − 3036 }
+ − 3037
+ − 3038 /*!
+ − 3039 \fn bool QComboBox::editable() const
+ − 3040
+ − 3041 Use isEditable() instead.
+ − 3042 */
+ − 3043
+ − 3044 /*!
+ − 3045 \fn void QComboBox::insertItem(const QPixmap &pixmap, int index)
+ − 3046
+ − 3047 Use an insertItem() function that takes a QIcon instead, for
+ − 3048 example, insertItem(index, QIcon(pixmap)).
+ − 3049 */
+ − 3050
+ − 3051 /*!
+ − 3052 \fn void QComboBox::insertItem(const QPixmap &pixmap, const QString &text, int index)
+ − 3053
+ − 3054 Use an insertItem() function that takes a QIcon instead, for
+ − 3055 example, insertItem(index, QIcon(pixmap), text).
+ − 3056
+ − 3057 \sa insertItems()
+ − 3058 */
+ − 3059
+ − 3060 /*!
+ − 3061 \fn void QComboBox::changeItem(const QString &text, int index)
+ − 3062
+ − 3063 Use setItemText() instead.
+ − 3064 */
+ − 3065
+ − 3066 /*!
+ − 3067 \fn void QComboBox::changeItem(const QPixmap &pixmap, int index)
+ − 3068
+ − 3069 Use setItemIcon() instead, for example,
+ − 3070 setItemIcon(index, QIcon(pixmap)).
+ − 3071 */
+ − 3072
+ − 3073 /*!
+ − 3074 \fn void QComboBox::changeItem(const QPixmap &pixmap, const QString &text, int index)
+ − 3075
+ − 3076 Use setItem() instead, for example, setItem(index, QIcon(pixmap),text).
+ − 3077 */
+ − 3078
+ − 3079 /*!
+ − 3080 \fn void QComboBox::addItem(const QString &text, const QVariant &userData)
+ − 3081
+ − 3082 Adds an item to the combobox with the given \a text, and
+ − 3083 containing the specified \a userData (stored in the Qt::UserRole).
+ − 3084 The item is appended to the list of existing items.
+ − 3085 */
+ − 3086
+ − 3087 /*!
+ − 3088 \fn void QComboBox::addItem(const QIcon &icon, const QString &text,
+ − 3089 const QVariant &userData)
+ − 3090
+ − 3091 Adds an item to the combobox with the given \a icon and \a text,
+ − 3092 and containing the specified \a userData (stored in the
+ − 3093 Qt::UserRole). The item is appended to the list of existing items.
+ − 3094 */
+ − 3095
+ − 3096 /*!
+ − 3097 \fn void QComboBox::addItems(const QStringList &texts)
+ − 3098
+ − 3099 Adds each of the strings in the given \a texts to the combobox. Each item
+ − 3100 is appended to the list of existing items in turn.
+ − 3101 */
+ − 3102
+ − 3103 /*!
+ − 3104 \fn void QComboBox::editTextChanged(const QString &text)
+ − 3105
+ − 3106 This signal is emitted when the text in the combobox's line edit
+ − 3107 widget is changed. The new text is specified by \a text.
+ − 3108 */
+ − 3109
+ − 3110 /*!
+ − 3111 \fn QComboBox::InsertPolicy QComboBox::insertionPolicy() const
+ − 3112 \compat
+ − 3113
+ − 3114 Use QComboBox::insertPolicy instead.
+ − 3115 */
+ − 3116
+ − 3117 /*!
+ − 3118 \fn void QComboBox::setInsertionPolicy(InsertPolicy policy)
+ − 3119 \compat
+ − 3120
+ − 3121 Use QComboBox::insertPolicy instead.
+ − 3122 */
+ − 3123
+ − 3124 /*!
+ − 3125 \fn void QComboBox::setCurrentText(const QString &text)
+ − 3126 \compat
+ − 3127
+ − 3128 Use setItemText() instead.
+ − 3129
+ − 3130 \sa currentIndex()
+ − 3131 */
+ − 3132
+ − 3133 /*!
+ − 3134 \fn QString QComboBox::text(int index) const
+ − 3135 \compat
+ − 3136
+ − 3137 Use itemText() instead.
+ − 3138 */
+ − 3139
+ − 3140 /*!
+ − 3141 \fn QPixmap QComboBox::pixmap(int index) const
+ − 3142 \compat
+ − 3143
+ − 3144 Use itemIcon() instead.
+ − 3145 */
+ − 3146
+ − 3147 /*!
+ − 3148 \fn void QComboBox::insertStringList(const QStringList &list, int index)
+ − 3149 \compat
+ − 3150
+ − 3151 Use insertItems() instead.
+ − 3152 */
+ − 3153
+ − 3154 /*!
+ − 3155 \fn void QComboBox::insertItem(const QString &text, int index)
+ − 3156 \compat
+ − 3157 */
+ − 3158
+ − 3159 /*!
+ − 3160 \fn void QComboBox::clearEdit()
+ − 3161 \compat
+ − 3162
+ − 3163 Use clearEditText() instead.
+ − 3164 */
+ − 3165
+ − 3166
+ − 3167 /*!
+ − 3168 \property QComboBox::frame
+ − 3169 \brief whether the combo box draws itself with a frame
+ − 3170
+ − 3171
+ − 3172 If enabled (the default) the combo box draws itself inside a
+ − 3173 frame, otherwise the combo box draws itself without any frame.
+ − 3174 */
+ − 3175 bool QComboBox::hasFrame() const
+ − 3176 {
+ − 3177 Q_D(const QComboBox);
+ − 3178 return d->frame;
+ − 3179 }
+ − 3180
+ − 3181
+ − 3182 void QComboBox::setFrame(bool enable)
+ − 3183 {
+ − 3184 Q_D(QComboBox);
+ − 3185 d->frame = enable;
+ − 3186 update();
+ − 3187 updateGeometry();
+ − 3188 }
+ − 3189
+ − 3190 /*!
+ − 3191 \property QComboBox::modelColumn
+ − 3192 \brief the column in the model that is visible.
+ − 3193
+ − 3194 If set prior to populating the combo box, the pop-up view will
+ − 3195 not be affected and will show the first column (using this property's
+ − 3196 default value).
+ − 3197
+ − 3198 By default, this property has a value of 0.
+ − 3199 */
+ − 3200 int QComboBox::modelColumn() const
+ − 3201 {
+ − 3202 Q_D(const QComboBox);
+ − 3203 return d->modelColumn;
+ − 3204 }
+ − 3205
+ − 3206 void QComboBox::setModelColumn(int visibleColumn)
+ − 3207 {
+ − 3208 Q_D(QComboBox);
+ − 3209 d->modelColumn = visibleColumn;
+ − 3210 QListView *lv = qobject_cast<QListView *>(d->viewContainer()->itemView());
+ − 3211 if (lv)
+ − 3212 lv->setModelColumn(visibleColumn);
+ − 3213 #ifndef QT_NO_COMPLETER
+ − 3214 if (d->lineEdit && d->lineEdit->completer()
+ − 3215 && d->lineEdit->completer() == d->completer)
+ − 3216 d->lineEdit->completer()->setCompletionColumn(visibleColumn);
+ − 3217 #endif
+ − 3218 setCurrentIndex(currentIndex()); //update the text to the text of the new column;
+ − 3219 }
+ − 3220
+ − 3221 /*!
+ − 3222 \fn int QComboBox::currentItem() const
+ − 3223
+ − 3224 Use currentIndex() instead.
+ − 3225 */
+ − 3226
+ − 3227 /*!
+ − 3228 \fn void QComboBox::setCurrentItem(int)
+ − 3229
+ − 3230 Use setCurrentIndex(int) instead.
+ − 3231 */
+ − 3232
+ − 3233 /*!
+ − 3234 \fn void QComboBox::popup()
+ − 3235
+ − 3236 Use showPopup() instead.
+ − 3237 */
+ − 3238
+ − 3239 /*!
+ − 3240 \fn void QComboBox::textChanged(const QString &text)
+ − 3241
+ − 3242 Use the editTextChanged(const QString &text) signal instead.
+ − 3243 */
+ − 3244
+ − 3245 /*!
+ − 3246 \typedef QComboBox::Policy
+ − 3247 \compat
+ − 3248
+ − 3249 Use QComboBox::InsertPolicy instead.
+ − 3250 */
+ − 3251
+ − 3252 QT_END_NAMESPACE
+ − 3253
+ − 3254 #include "moc_qcombobox.cpp"
+ − 3255
+ − 3256 #endif // QT_NO_COMBOBOX