0
+ − 1 /****************************************************************************
+ − 2 **
4
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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changeset
+ − 3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
0
+ − 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)
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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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
7
+ − 535 #ifndef Q_WS_S60
0
+ − 536 if (usePopup)
+ − 537 view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ − 538 #endif
7
+ − 539 #endif
0
+ − 540 if (combo->style()->styleHint(QStyle::SH_ComboBox_ListMouseTracking, &opt, combo) ||
+ − 541 usePopup) {
+ − 542 view->setMouseTracking(true);
+ − 543 }
+ − 544 view->setSelectionMode(QAbstractItemView::SingleSelection);
+ − 545 view->setFrameStyle(QFrame::NoFrame);
+ − 546 view->setLineWidth(0);
+ − 547 view->setEditTriggers(QAbstractItemView::NoEditTriggers);
+ − 548 #ifndef QT_NO_SCROLLBAR
+ − 549 connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
+ − 550 this, SLOT(updateScrollers()));
+ − 551 connect(view->verticalScrollBar(), SIGNAL(rangeChanged(int,int)),
+ − 552 this, SLOT(updateScrollers()));
+ − 553 #endif
+ − 554 connect(view, SIGNAL(destroyed()),
+ − 555 this, SLOT(viewDestroyed()));
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+ − 556
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 557 #ifdef QT_SOFTKEYS_ENABLED
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 558 selectAction = QSoftKeyManager::createKeyedAction(QSoftKeyManager::SelectSoftKey, Qt::Key_Select, itemView);
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+ − 559 cancelAction = QSoftKeyManager::createKeyedAction(QSoftKeyManager::CancelSoftKey, Qt::Key_Escape, itemView);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 560 addAction(selectAction);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 561 addAction(cancelAction);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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+ − 562 #endif
0
+ − 563 }
+ − 564
+ − 565 /*!
+ − 566 Returns the spacing between the items in the view.
+ − 567 */
+ − 568 int QComboBoxPrivateContainer::spacing() const
+ − 569 {
+ − 570 QListView *lview = qobject_cast<QListView*>(view);
+ − 571 if (lview)
+ − 572 return lview->spacing();
+ − 573 #ifndef QT_NO_TABLEVIEW
+ − 574 QTableView *tview = qobject_cast<QTableView*>(view);
+ − 575 if (tview)
+ − 576 return tview->showGrid() ? 1 : 0;
+ − 577 #endif
+ − 578 return 0;
+ − 579 }
+ − 580
+ − 581 void QComboBoxPrivateContainer::updateTopBottomMargin()
+ − 582 {
+ − 583 if (!layout() || layout()->count() < 1)
+ − 584 return;
+ − 585
+ − 586 QBoxLayout *boxLayout = qobject_cast<QBoxLayout *>(layout());
+ − 587 if (!boxLayout)
+ − 588 return;
+ − 589
+ − 590 const QStyleOptionComboBox opt = comboStyleOption();
+ − 591 const bool usePopup = combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo);
+ − 592 const int margin = usePopup ? combo->style()->pixelMetric(QStyle::PM_MenuVMargin, &opt, combo) : 0;
+ − 593
+ − 594 QSpacerItem *topSpacer = boxLayout->itemAt(0)->spacerItem();
+ − 595 if (topSpacer)
+ − 596 topSpacer->changeSize(0, margin, QSizePolicy::Minimum, QSizePolicy::Fixed);
+ − 597
+ − 598 QSpacerItem *bottomSpacer = boxLayout->itemAt(boxLayout->count() - 1)->spacerItem();
+ − 599 if (bottomSpacer && bottomSpacer != topSpacer)
+ − 600 bottomSpacer->changeSize(0, margin, QSizePolicy::Minimum, QSizePolicy::Fixed);
+ − 601
+ − 602 boxLayout->invalidate();
+ − 603 }
+ − 604
+ − 605 void QComboBoxPrivateContainer::changeEvent(QEvent *e)
+ − 606 {
+ − 607 if (e->type() == QEvent::StyleChange) {
+ − 608 QStyleOptionComboBox opt = comboStyleOption();
+ − 609 view->setMouseTracking(combo->style()->styleHint(QStyle::SH_ComboBox_ListMouseTracking, &opt, combo) ||
+ − 610 combo->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, combo));
+ − 611 setFrameStyle(combo->style()->styleHint(QStyle::SH_ComboBox_PopupFrameStyle, &opt, combo));
7
+ − 612 #ifdef QT_SOFTKEYS_ENABLED
+ − 613 } else if (e->type() == QEvent::LanguageChange) {
+ − 614 selectAction->setText(QSoftKeyManager::standardSoftKeyText(QSoftKeyManager::SelectSoftKey));
+ − 615 cancelAction->setText(QSoftKeyManager::standardSoftKeyText(QSoftKeyManager::CancelSoftKey));
+ − 616 #endif
0
+ − 617 }
7
+ − 618
0
+ − 619 QWidget::changeEvent(e);
+ − 620 }
+ − 621
+ − 622
+ − 623 bool QComboBoxPrivateContainer::eventFilter(QObject *o, QEvent *e)
+ − 624 {
+ − 625 switch (e->type()) {
+ − 626 case QEvent::ShortcutOverride:
+ − 627 switch (static_cast<QKeyEvent*>(e)->key()) {
+ − 628 case Qt::Key_Enter:
+ − 629 case Qt::Key_Return:
+ − 630 #ifdef QT_KEYPAD_NAVIGATION
+ − 631 case Qt::Key_Select:
+ − 632 #endif
+ − 633 if (view->currentIndex().isValid() && (view->currentIndex().flags() & Qt::ItemIsEnabled) ) {
+ − 634 combo->hidePopup();
+ − 635 emit itemSelected(view->currentIndex());
+ − 636 }
+ − 637 return true;
+ − 638 case Qt::Key_Down:
+ − 639 if (!(static_cast<QKeyEvent*>(e)->modifiers() & Qt::AltModifier))
+ − 640 break;
+ − 641 // fall through
+ − 642 case Qt::Key_F4:
+ − 643 case Qt::Key_Escape:
+ − 644 combo->hidePopup();
+ − 645 return true;
+ − 646 default:
+ − 647 break;
+ − 648 }
+ − 649 break;
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 650 case QEvent::MouseMove:
0
+ − 651 if (isVisible()) {
+ − 652 QMouseEvent *m = static_cast<QMouseEvent *>(e);
+ − 653 QWidget *widget = static_cast<QWidget *>(o);
+ − 654 QPoint vector = widget->mapToGlobal(m->pos()) - initialClickPosition;
+ − 655 if (vector.manhattanLength() > 9 && blockMouseReleaseTimer.isActive())
+ − 656 blockMouseReleaseTimer.stop();
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 657 QModelIndex indexUnderMouse = view->indexAt(m->pos());
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 658 if (indexUnderMouse.isValid() && indexUnderMouse != view->currentIndex()
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 659 && !QComboBoxDelegate::isSeparator(indexUnderMouse)) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 660 view->setCurrentIndex(indexUnderMouse);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 661 }
0
+ − 662 }
+ − 663 break;
+ − 664 case QEvent::MouseButtonRelease: {
+ − 665 QMouseEvent *m = static_cast<QMouseEvent *>(e);
+ − 666 if (isVisible() && view->rect().contains(m->pos()) && view->currentIndex().isValid()
+ − 667 && !blockMouseReleaseTimer.isActive()
+ − 668 && (view->currentIndex().flags() & Qt::ItemIsEnabled)
+ − 669 && (view->currentIndex().flags() & Qt::ItemIsSelectable)) {
+ − 670 combo->hidePopup();
+ − 671 emit itemSelected(view->currentIndex());
+ − 672 return true;
+ − 673 }
+ − 674 break;
+ − 675 }
+ − 676 default:
+ − 677 break;
+ − 678 }
+ − 679 return QFrame::eventFilter(o, e);
+ − 680 }
+ − 681
+ − 682 void QComboBoxPrivateContainer::showEvent(QShowEvent *)
+ − 683 {
+ − 684 combo->update();
+ − 685 }
+ − 686
+ − 687 void QComboBoxPrivateContainer::hideEvent(QHideEvent *)
+ − 688 {
+ − 689 emit resetButton();
+ − 690 combo->update();
+ − 691 }
+ − 692
+ − 693 void QComboBoxPrivateContainer::mousePressEvent(QMouseEvent *e)
+ − 694 {
+ − 695
+ − 696 QStyleOptionComboBox opt = comboStyleOption();
+ − 697 opt.subControls = QStyle::SC_All;
+ − 698 opt.activeSubControls = QStyle::SC_ComboBoxArrow;
+ − 699 QStyle::SubControl sc = combo->style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt,
+ − 700 combo->mapFromGlobal(e->globalPos()),
+ − 701 combo);
+ − 702 if ((combo->isEditable() && sc == QStyle::SC_ComboBoxArrow)
+ − 703 || (!combo->isEditable() && sc != QStyle::SC_None))
+ − 704 setAttribute(Qt::WA_NoMouseReplay);
+ − 705 combo->hidePopup();
+ − 706 }
+ − 707
+ − 708 void QComboBoxPrivateContainer::mouseReleaseEvent(QMouseEvent *e)
+ − 709 {
+ − 710 Q_UNUSED(e);
+ − 711 if (!blockMouseReleaseTimer.isActive()){
+ − 712 combo->hidePopup();
+ − 713 emit resetButton();
+ − 714 }
+ − 715 }
+ − 716
+ − 717 QStyleOptionComboBox QComboBoxPrivateContainer::comboStyleOption() const
+ − 718 {
+ − 719 // ### This should use QComboBox's initStyleOption(), but it's protected
+ − 720 // perhaps, we could cheat by having the QCombo private instead?
+ − 721 QStyleOptionComboBox opt;
+ − 722 opt.initFrom(combo);
+ − 723 opt.subControls = QStyle::SC_All;
+ − 724 opt.activeSubControls = QStyle::SC_None;
+ − 725 opt.editable = combo->isEditable();
+ − 726 return opt;
+ − 727 }
+ − 728
+ − 729 /*!
+ − 730 \enum QComboBox::InsertPolicy
+ − 731
+ − 732 This enum specifies what the QComboBox should do when a new string is
+ − 733 entered by the user.
+ − 734
+ − 735 \value NoInsert The string will not be inserted into the combobox.
+ − 736 \value InsertAtTop The string will be inserted as the first item in the combobox.
+ − 737 \value InsertAtCurrent The current item will be \e replaced by the string.
+ − 738 \value InsertAtBottom The string will be inserted after the last item in the combobox.
+ − 739 \value InsertAfterCurrent The string is inserted after the current item in the combobox.
+ − 740 \value InsertBeforeCurrent The string is inserted before the current item in the combobox.
+ − 741 \value InsertAlphabetically The string is inserted in the alphabetic order in the combobox.
+ − 742 \omitvalue NoInsertion
+ − 743 \omitvalue AtTop
+ − 744 \omitvalue AtCurrent
+ − 745 \omitvalue AtBottom
+ − 746 \omitvalue AfterCurrent
+ − 747 \omitvalue BeforeCurrent
+ − 748 */
+ − 749
+ − 750 /*!
+ − 751 \enum QComboBox::SizeAdjustPolicy
+ − 752
+ − 753 This enum specifies how the size hint of the QComboBox should
+ − 754 adjust when new content is added or content changes.
+ − 755
+ − 756 \value AdjustToContents The combobox will always adjust to the contents
+ − 757 \value AdjustToContentsOnFirstShow The combobox will adjust to its contents the first time it is shown.
+ − 758 \value AdjustToMinimumContentsLength Use AdjustToContents or AdjustToContentsOnFirstShow instead.
+ − 759 \value AdjustToMinimumContentsLengthWithIcon The combobox will adjust to \l minimumContentsLength plus space for an icon. For performance reasons use this policy on large models.
+ − 760 */
+ − 761
+ − 762 /*!
+ − 763 \fn void QComboBox::activated(int index)
+ − 764
+ − 765 This signal is sent when the user chooses an item in the combobox.
+ − 766 The item's \a index is passed. Note that this signal is sent even
+ − 767 when the choice is not changed. If you need to know when the
+ − 768 choice actually changes, use signal currentIndexChanged().
+ − 769
+ − 770 */
+ − 771
+ − 772 /*!
+ − 773 \fn void QComboBox::activated(const QString &text)
+ − 774
+ − 775 This signal is sent when the user chooses an item in the combobox.
+ − 776 The item's \a text is passed. Note that this signal is sent even
+ − 777 when the choice is not changed. If you need to know when the
+ − 778 choice actually changes, use signal currentIndexChanged().
+ − 779
+ − 780 */
+ − 781
+ − 782 /*!
+ − 783 \fn void QComboBox::highlighted(int index)
+ − 784
+ − 785 This signal is sent when an item in the combobox popup list is
+ − 786 highlighted by the user. The item's \a index is passed.
+ − 787 */
+ − 788
+ − 789 /*!
+ − 790 \fn void QComboBox::highlighted(const QString &text)
+ − 791
+ − 792 This signal is sent when an item in the combobox popup list is
+ − 793 highlighted by the user. The item's \a text is passed.
+ − 794 */
+ − 795
+ − 796 /*!
+ − 797 \fn void QComboBox::currentIndexChanged(int index)
+ − 798 \since 4.1
+ − 799
+ − 800 This signal is sent whenever the currentIndex in the combobox
+ − 801 changes either through user interaction or programmatically. The
+ − 802 item's \a index is passed or -1 if the combobox becomes empty or the
+ − 803 currentIndex was reset.
+ − 804 */
+ − 805
+ − 806 /*!
+ − 807 \fn void QComboBox::currentIndexChanged(const QString &text)
+ − 808 \since 4.1
+ − 809
+ − 810 This signal is sent whenever the currentIndex in the combobox
+ − 811 changes either through user interaction or programmatically. The
+ − 812 item's \a text is passed.
+ − 813 */
+ − 814
+ − 815 /*!
+ − 816 Constructs a combobox with the given \a parent, using the default
+ − 817 model QStandardItemModel.
+ − 818 */
+ − 819 QComboBox::QComboBox(QWidget *parent)
+ − 820 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 821 {
+ − 822 Q_D(QComboBox);
+ − 823 d->init();
+ − 824 }
+ − 825
+ − 826 /*!
+ − 827 \internal
+ − 828 */
+ − 829 QComboBox::QComboBox(QComboBoxPrivate &dd, QWidget *parent)
+ − 830 : QWidget(dd, parent, 0)
+ − 831 {
+ − 832 Q_D(QComboBox);
+ − 833 d->init();
+ − 834 }
+ − 835
+ − 836 #ifdef QT3_SUPPORT
+ − 837 /*!
+ − 838 Use one of the constructors that doesn't take the \a name
+ − 839 argument and then use setObjectName() instead.
+ − 840 */
+ − 841 QComboBox::QComboBox(QWidget *parent, const char *name)
+ − 842 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 843 {
+ − 844 Q_D(QComboBox);
+ − 845 d->init();
+ − 846 setObjectName(QString::fromAscii(name));
+ − 847 }
+ − 848
+ − 849 /*!
+ − 850 Use one of the constructors that doesn't take the \a name
+ − 851 argument and then use setObjectName() instead.
+ − 852 */
+ − 853 QComboBox::QComboBox(bool rw, QWidget *parent, const char *name)
+ − 854 : QWidget(*new QComboBoxPrivate(), parent, 0)
+ − 855 {
+ − 856 Q_D(QComboBox);
+ − 857 d->init();
+ − 858 setEditable(rw);
+ − 859 setObjectName(QString::fromAscii(name));
+ − 860 }
+ − 861
+ − 862 #endif //QT3_SUPPORT
+ − 863
+ − 864 /*!
+ − 865 \class QComboBox
+ − 866 \brief The QComboBox widget is a combined button and popup list.
+ − 867
+ − 868 \ingroup basicwidgets
+ − 869
+ − 870
+ − 871 A QComboBox provides a means of presenting a list of options to the user
+ − 872 in a way that takes up the minimum amount of screen space.
+ − 873
+ − 874 A combobox is a selection widget that displays the current item,
+ − 875 and can pop up a list of selectable items. A combobox may be editable,
+ − 876 allowing the user to modify each item in the list.
+ − 877
+ − 878 Comboboxes can contain pixmaps as well as strings; the
+ − 879 insertItem() and setItemText() functions are suitably overloaded.
+ − 880 For editable comboboxes, the function clearEditText() is provided,
+ − 881 to clear the displayed string without changing the combobox's
+ − 882 contents.
+ − 883
+ − 884 There are two signals emitted if the current item of a combobox
+ − 885 changes, currentIndexChanged() and activated().
+ − 886 currentIndexChanged() is always emitted regardless if the change
+ − 887 was done programmatically or by user interaction, while
+ − 888 activated() is only emitted when the change is caused by user
+ − 889 interaction. The highlighted() signal is emitted when the user
+ − 890 highlights an item in the combobox popup list. All three signals
+ − 891 exist in two versions, one with a QString argument and one with an
+ − 892 \c int argument. If the user selectes or highlights a pixmap, only
+ − 893 the \c int signals are emitted. Whenever the text of an editable
+ − 894 combobox is changed the editTextChanged() signal is emitted.
+ − 895
+ − 896 When the user enters a new string in an editable combobox, the
+ − 897 widget may or may not insert it, and it can insert it in several
+ − 898 locations. The default policy is is \l AtBottom but you can change
+ − 899 this using setInsertPolicy().
+ − 900
+ − 901 It is possible to constrain the input to an editable combobox
+ − 902 using QValidator; see setValidator(). By default, any input is
+ − 903 accepted.
+ − 904
+ − 905 A combobox can be populated using the insert functions,
+ − 906 insertItem() and insertItems() for example. Items can be
+ − 907 changed with setItemText(). An item can be removed with
+ − 908 removeItem() and all items can be removed with clear(). The text
+ − 909 of the current item is returned by currentText(), and the text of
+ − 910 a numbered item is returned with text(). The current item can be
+ − 911 set with setCurrentIndex(). The number of items in the combobox is
+ − 912 returned by count(); the maximum number of items can be set with
+ − 913 setMaxCount(). You can allow editing using setEditable(). For
+ − 914 editable comboboxes you can set auto-completion using
+ − 915 setCompleter() and whether or not the user can add duplicates
+ − 916 is set with setDuplicatesEnabled().
+ − 917
+ − 918 QComboBox uses the \l{Model/View Programming}{model/view
+ − 919 framework} for its popup list and to store its items. By default
+ − 920 a QStandardItemModel stores the items and a QListView subclass
+ − 921 displays the popuplist. You can access the model and view directly
+ − 922 (with model() and view()), but QComboBox also provides functions
+ − 923 to set and get item data (e.g., setItemData() and itemText()). You
+ − 924 can also set a new model and view (with setModel() and setView()).
+ − 925 For the text and icon in the combobox label, the data in the model
+ − 926 that has the Qt::DisplayRole and Qt::DecorationRole is used.
+ − 927
+ − 928 \image qstyle-comboboxes.png Comboboxes in the different built-in styles.
+ − 929
+ − 930 \sa QLineEdit, QSpinBox, QRadioButton, QButtonGroup,
+ − 931 {fowler}{GUI Design Handbook: Combo Box, Drop-Down List Box}
+ − 932 */
+ − 933
+ − 934 void QComboBoxPrivate::init()
+ − 935 {
+ − 936 Q_Q(QComboBox);
+ − 937 q->setFocusPolicy(Qt::WheelFocus);
+ − 938 q->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed,
+ − 939 QSizePolicy::ComboBox));
+ − 940 setLayoutItemMargins(QStyle::SE_ComboBoxLayoutItem);
+ − 941 q->setModel(new QStandardItemModel(0, 1, q));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 942 if (!q->isEditable())
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 943 q->setAttribute(Qt::WA_InputMethodEnabled, false);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 944 else
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 945 q->setAttribute(Qt::WA_InputMethodEnabled);
0
+ − 946 }
+ − 947
+ − 948 QComboBoxPrivateContainer* QComboBoxPrivate::viewContainer()
+ − 949 {
+ − 950 if (container)
+ − 951 return container;
+ − 952
+ − 953 Q_Q(QComboBox);
+ − 954 container = new QComboBoxPrivateContainer(new QComboBoxListView(q), q);
+ − 955 container->itemView()->setModel(model);
+ − 956 container->itemView()->setTextElideMode(Qt::ElideMiddle);
+ − 957 updateDelegate(true);
+ − 958 updateLayoutDirection();
+ − 959 updateViewContainerPaletteAndOpacity();
+ − 960 QObject::connect(container, SIGNAL(itemSelected(QModelIndex)),
+ − 961 q, SLOT(_q_itemSelected(QModelIndex)));
+ − 962 QObject::connect(container->itemView()->selectionModel(),
+ − 963 SIGNAL(currentChanged(QModelIndex,QModelIndex)),
+ − 964 q, SLOT(_q_emitHighlighted(QModelIndex)));
+ − 965 QObject::connect(container, SIGNAL(resetButton()), q, SLOT(_q_resetButton()));
+ − 966 return container;
+ − 967 }
+ − 968
+ − 969
+ − 970 void QComboBoxPrivate::_q_resetButton()
+ − 971 {
+ − 972 updateArrow(QStyle::State_None);
+ − 973 }
+ − 974
+ − 975 void QComboBoxPrivate::_q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
+ − 976 {
+ − 977 Q_Q(QComboBox);
+ − 978 if (inserting || topLeft.parent() != root)
+ − 979 return;
+ − 980
+ − 981 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 982 sizeHint = QSize();
+ − 983 adjustComboBoxSize();
+ − 984 q->updateGeometry();
+ − 985 }
+ − 986
+ − 987 if (currentIndex.row() >= topLeft.row() && currentIndex.row() <= bottomRight.row()) {
+ − 988 if (lineEdit) {
+ − 989 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 990 updateLineEditGeometry();
+ − 991 }
+ − 992 q->update();
+ − 993 }
+ − 994 }
+ − 995
+ − 996 void QComboBoxPrivate::_q_rowsInserted(const QModelIndex &parent, int start, int end)
+ − 997 {
+ − 998 Q_Q(QComboBox);
+ − 999 if (inserting || parent != root)
+ − 1000 return;
+ − 1001
+ − 1002 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 1003 sizeHint = QSize();
+ − 1004 adjustComboBoxSize();
+ − 1005 q->updateGeometry();
+ − 1006 }
+ − 1007
+ − 1008 // set current index if combo was previously empty
+ − 1009 if (start == 0 && (end - start + 1) == q->count() && !currentIndex.isValid()) {
+ − 1010 q->setCurrentIndex(0);
+ − 1011 // need to emit changed if model updated index "silently"
+ − 1012 } else if (currentIndex.row() != indexBeforeChange) {
+ − 1013 q->update();
+ − 1014 _q_emitCurrentIndexChanged(currentIndex);
+ − 1015 }
+ − 1016 }
+ − 1017
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1018 void QComboBoxPrivate::_q_updateIndexBeforeChange()
0
+ − 1019 {
+ − 1020 indexBeforeChange = currentIndex.row();
+ − 1021 }
+ − 1022
+ − 1023 void QComboBoxPrivate::_q_rowsRemoved(const QModelIndex &parent, int /*start*/, int /*end*/)
+ − 1024 {
+ − 1025 Q_Q(QComboBox);
+ − 1026 if (parent != root)
+ − 1027 return;
+ − 1028
+ − 1029 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 1030 sizeHint = QSize();
+ − 1031 adjustComboBoxSize();
+ − 1032 q->updateGeometry();
+ − 1033 }
+ − 1034
+ − 1035 // model has changed the currentIndex
+ − 1036 if (currentIndex.row() != indexBeforeChange) {
+ − 1037 if (!currentIndex.isValid() && q->count()) {
+ − 1038 q->setCurrentIndex(qMin(q->count() - 1, qMax(indexBeforeChange, 0)));
+ − 1039 return;
+ − 1040 }
+ − 1041 if (lineEdit) {
+ − 1042 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 1043 updateLineEditGeometry();
+ − 1044 }
+ − 1045 q->update();
+ − 1046 _q_emitCurrentIndexChanged(currentIndex);
+ − 1047 }
+ − 1048 }
+ − 1049
+ − 1050
+ − 1051 void QComboBoxPrivate::updateViewContainerPaletteAndOpacity()
+ − 1052 {
+ − 1053 if (!container)
+ − 1054 return;
+ − 1055 Q_Q(QComboBox);
+ − 1056 QStyleOptionComboBox opt;
+ − 1057 q->initStyleOption(&opt);
+ − 1058 #ifndef QT_NO_MENU
+ − 1059 if (q->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, q)) {
+ − 1060 QMenu menu;
+ − 1061 menu.ensurePolished();
+ − 1062 container->setPalette(menu.palette());
+ − 1063 container->setWindowOpacity(menu.windowOpacity());
+ − 1064 } else
+ − 1065 #endif
+ − 1066 {
+ − 1067 container->setPalette(q->palette());
+ − 1068 container->setWindowOpacity(1.0);
+ − 1069 }
+ − 1070 }
+ − 1071
+ − 1072 /*!
+ − 1073 Initialize \a option with the values from this QComboBox. This method
+ − 1074 is useful for subclasses when they need a QStyleOptionComboBox, but don't want
+ − 1075 to fill in all the information themselves.
+ − 1076
+ − 1077 \sa QStyleOption::initFrom()
+ − 1078 */
+ − 1079 void QComboBox::initStyleOption(QStyleOptionComboBox *option) const
+ − 1080 {
+ − 1081 if (!option)
+ − 1082 return;
+ − 1083
+ − 1084 Q_D(const QComboBox);
+ − 1085 option->initFrom(this);
+ − 1086 option->editable = isEditable();
+ − 1087 option->frame = d->frame;
+ − 1088 if (hasFocus() && !option->editable)
+ − 1089 option->state |= QStyle::State_Selected;
+ − 1090 option->subControls = QStyle::SC_All;
+ − 1091 if (d->arrowState == QStyle::State_Sunken) {
+ − 1092 option->activeSubControls = QStyle::SC_ComboBoxArrow;
+ − 1093 option->state |= d->arrowState;
+ − 1094 } else {
+ − 1095 option->activeSubControls = d->hoverControl;
+ − 1096 }
+ − 1097 if (d->currentIndex.isValid()) {
+ − 1098 option->currentText = currentText();
+ − 1099 option->currentIcon = d->itemIcon(d->currentIndex);
+ − 1100 }
+ − 1101 option->iconSize = iconSize();
+ − 1102 if (d->container && d->container->isVisible())
+ − 1103 option->state |= QStyle::State_On;
+ − 1104 }
+ − 1105
+ − 1106 void QComboBoxPrivate::updateLineEditGeometry()
+ − 1107 {
+ − 1108 if (!lineEdit)
+ − 1109 return;
+ − 1110
+ − 1111 Q_Q(QComboBox);
+ − 1112 QStyleOptionComboBox opt;
+ − 1113 q->initStyleOption(&opt);
+ − 1114 QRect editRect = q->style()->subControlRect(QStyle::CC_ComboBox, &opt,
+ − 1115 QStyle::SC_ComboBoxEditField, q);
+ − 1116 if (!q->itemIcon(q->currentIndex()).isNull()) {
+ − 1117 QRect comboRect(editRect);
+ − 1118 editRect.setWidth(editRect.width() - q->iconSize().width() - 4);
+ − 1119 editRect = QStyle::alignedRect(q->layoutDirection(), Qt::AlignRight,
+ − 1120 editRect.size(), comboRect);
+ − 1121 }
+ − 1122 lineEdit->setGeometry(editRect);
+ − 1123 }
+ − 1124
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1125 Qt::MatchFlags QComboBoxPrivate::matchFlags() const
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 // Base how duplicates are determined on the autocompletion case sensitivity
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1128 Qt::MatchFlags flags = Qt::MatchFixedString;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1129 #ifndef QT_NO_COMPLETER
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1130 if (!lineEdit->completer() || lineEdit->completer()->caseSensitivity() == Qt::CaseSensitive)
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1131 #endif
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1132 flags |= Qt::MatchCaseSensitive;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1133 return flags;
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1134 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1135
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1136
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1137 void QComboBoxPrivate::_q_editingFinished()
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 Q_Q(QComboBox);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1140 if (lineEdit && !lineEdit->text().isEmpty()) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1141 //here we just check if the current item was entered
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1142 const int index = q_func()->findText(lineEdit->text(), matchFlags());
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1143 if (index != -1 && itemText(currentIndex) != lineEdit->text()) {
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1144 q->setCurrentIndex(index);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1145 emitActivated(currentIndex);
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1146 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1147 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1148
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1149 }
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1150
0
+ − 1151 void QComboBoxPrivate::_q_returnPressed()
+ − 1152 {
+ − 1153 Q_Q(QComboBox);
+ − 1154 if (lineEdit && !lineEdit->text().isEmpty()) {
+ − 1155 if (q->count() >= maxCount && !(this->insertPolicy == QComboBox::InsertAtCurrent))
+ − 1156 return;
+ − 1157 lineEdit->deselect();
+ − 1158 lineEdit->end(false);
+ − 1159 QString text = lineEdit->text();
+ − 1160 // check for duplicates (if not enabled) and quit
+ − 1161 int index = -1;
+ − 1162 if (!duplicatesEnabled) {
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1163 index = q->findText(text, matchFlags());
0
+ − 1164 if (index != -1) {
+ − 1165 q->setCurrentIndex(index);
+ − 1166 emitActivated(currentIndex);
+ − 1167 return;
+ − 1168 }
+ − 1169 }
+ − 1170 switch (insertPolicy) {
+ − 1171 case QComboBox::InsertAtTop:
+ − 1172 index = 0;
+ − 1173 break;
+ − 1174 case QComboBox::InsertAtBottom:
+ − 1175 index = q->count();
+ − 1176 break;
+ − 1177 case QComboBox::InsertAtCurrent:
+ − 1178 case QComboBox::InsertAfterCurrent:
+ − 1179 case QComboBox::InsertBeforeCurrent:
+ − 1180 if (!q->count() || !currentIndex.isValid())
+ − 1181 index = 0;
+ − 1182 else if (insertPolicy == QComboBox::InsertAtCurrent)
+ − 1183 q->setItemText(q->currentIndex(), text);
+ − 1184 else if (insertPolicy == QComboBox::InsertAfterCurrent)
+ − 1185 index = q->currentIndex() + 1;
+ − 1186 else if (insertPolicy == QComboBox::InsertBeforeCurrent)
+ − 1187 index = q->currentIndex();
+ − 1188 break;
+ − 1189 case QComboBox::InsertAlphabetically:
+ − 1190 index = 0;
+ − 1191 for (int i=0; i< q->count(); i++, index++ ) {
+ − 1192 if (text.toLower() < q->itemText(i).toLower())
+ − 1193 break;
+ − 1194 }
+ − 1195 break;
+ − 1196 case QComboBox::NoInsert:
+ − 1197 default:
+ − 1198 break;
+ − 1199 }
+ − 1200 if (index >= 0) {
+ − 1201 q->insertItem(index, text);
+ − 1202 q->setCurrentIndex(index);
+ − 1203 emitActivated(currentIndex);
+ − 1204 }
+ − 1205 }
+ − 1206 }
+ − 1207
+ − 1208 void QComboBoxPrivate::_q_itemSelected(const QModelIndex &item)
+ − 1209 {
+ − 1210 Q_Q(QComboBox);
+ − 1211 if (item != currentIndex) {
+ − 1212 setCurrentIndex(item);
+ − 1213 } else if (lineEdit) {
+ − 1214 lineEdit->selectAll();
+ − 1215 lineEdit->setText(q->itemText(currentIndex.row()));
+ − 1216 }
+ − 1217 emitActivated(currentIndex);
+ − 1218 }
+ − 1219
+ − 1220 void QComboBoxPrivate::emitActivated(const QModelIndex &index)
+ − 1221 {
+ − 1222 Q_Q(QComboBox);
+ − 1223 if (!index.isValid())
+ − 1224 return;
+ − 1225 QString text(itemText(index));
+ − 1226 emit q->activated(index.row());
+ − 1227 emit q->activated(text);
+ − 1228 }
+ − 1229
+ − 1230 void QComboBoxPrivate::_q_emitHighlighted(const QModelIndex &index)
+ − 1231 {
+ − 1232 Q_Q(QComboBox);
+ − 1233 if (!index.isValid())
+ − 1234 return;
+ − 1235 QString text(itemText(index));
+ − 1236 emit q->highlighted(index.row());
+ − 1237 emit q->highlighted(text);
+ − 1238 }
+ − 1239
+ − 1240 void QComboBoxPrivate::_q_emitCurrentIndexChanged(const QModelIndex &index)
+ − 1241 {
+ − 1242 Q_Q(QComboBox);
+ − 1243 emit q->currentIndexChanged(index.row());
+ − 1244 emit q->currentIndexChanged(itemText(index));
+ − 1245 }
+ − 1246
+ − 1247 QString QComboBoxPrivate::itemText(const QModelIndex &index) const
+ − 1248 {
+ − 1249 return index.isValid() ? model->data(index, itemRole()).toString() : QString();
+ − 1250 }
+ − 1251
+ − 1252 int QComboBoxPrivate::itemRole() const
+ − 1253 {
+ − 1254 return q_func()->isEditable() ? Qt::EditRole : Qt::DisplayRole;
+ − 1255 }
+ − 1256
+ − 1257 /*!
+ − 1258 Destroys the combobox.
+ − 1259 */
+ − 1260 QComboBox::~QComboBox()
+ − 1261 {
+ − 1262 // ### check delegateparent and delete delegate if us?
+ − 1263 Q_D(QComboBox);
+ − 1264
+ − 1265 QT_TRY {
+ − 1266 disconnect(d->model, SIGNAL(destroyed()),
+ − 1267 this, SLOT(_q_modelDestroyed()));
+ − 1268 } QT_CATCH(...) {
+ − 1269 ; // objects can't throw in destructor
+ − 1270 }
+ − 1271 }
+ − 1272
+ − 1273 /*!
+ − 1274 \property QComboBox::maxVisibleItems
+ − 1275 \brief the maximum allowed size on screen of the combo box, measured in items
+ − 1276
+ − 1277 By default, this property has a value of 10.
+ − 1278
+ − 1279 \note This property is ignored for non-editable comboboxes in Mac style.
+ − 1280 */
+ − 1281 int QComboBox::maxVisibleItems() const
+ − 1282 {
+ − 1283 Q_D(const QComboBox);
+ − 1284 return d->maxVisibleItems;
+ − 1285 }
+ − 1286
+ − 1287 void QComboBox::setMaxVisibleItems(int maxItems)
+ − 1288 {
+ − 1289 Q_D(QComboBox);
+ − 1290 if (maxItems < 0) {
+ − 1291 qWarning("QComboBox::setMaxVisibleItems: "
+ − 1292 "Invalid max visible items (%d) must be >= 0", maxItems);
+ − 1293 return;
+ − 1294 }
+ − 1295 d->maxVisibleItems = maxItems;
+ − 1296 }
+ − 1297
+ − 1298 /*!
+ − 1299 \property QComboBox::count
+ − 1300 \brief the number of items in the combobox
+ − 1301
+ − 1302 By default, for an empty combo box, this property has a value of 0.
+ − 1303 */
+ − 1304 int QComboBox::count() const
+ − 1305 {
+ − 1306 Q_D(const QComboBox);
+ − 1307 return d->model->rowCount(d->root);
+ − 1308 }
+ − 1309
+ − 1310 /*!
+ − 1311 \property QComboBox::maxCount
+ − 1312 \brief the maximum number of items allowed in the combobox
+ − 1313
+ − 1314 \note If you set the maximum number to be less then the current
+ − 1315 amount of items in the combobox, the extra items will be
+ − 1316 truncated. This also applies if you have set an external model on
+ − 1317 the combobox.
+ − 1318
+ − 1319 By default, this property's value is derived from the highest
+ − 1320 signed integer available (typically 2147483647).
+ − 1321 */
+ − 1322 void QComboBox::setMaxCount(int max)
+ − 1323 {
+ − 1324 Q_D(QComboBox);
+ − 1325 if (max < 0) {
+ − 1326 qWarning("QComboBox::setMaxCount: Invalid count (%d) must be >= 0", max);
+ − 1327 return;
+ − 1328 }
+ − 1329
+ − 1330 if (max < count())
+ − 1331 d->model->removeRows(max, count() - max, d->root);
+ − 1332
+ − 1333 d->maxCount = max;
+ − 1334 }
+ − 1335
+ − 1336 int QComboBox::maxCount() const
+ − 1337 {
+ − 1338 Q_D(const QComboBox);
+ − 1339 return d->maxCount;
+ − 1340 }
+ − 1341
+ − 1342 #ifndef QT_NO_COMPLETER
+ − 1343
+ − 1344 /*!
+ − 1345 \property QComboBox::autoCompletion
+ − 1346 \brief whether the combobox provides auto-completion for editable items
+ − 1347 \since 4.1
+ − 1348 \obsolete
+ − 1349
+ − 1350 Use setCompleter() instead.
+ − 1351
+ − 1352 By default, this property is true.
+ − 1353
+ − 1354 \sa editable
+ − 1355 */
+ − 1356
+ − 1357 /*!
+ − 1358 \obsolete
+ − 1359
+ − 1360 Use setCompleter() instead.
+ − 1361 */
+ − 1362 bool QComboBox::autoCompletion() const
+ − 1363 {
+ − 1364 Q_D(const QComboBox);
+ − 1365 return d->autoCompletion;
+ − 1366 }
+ − 1367
+ − 1368 /*!
+ − 1369 \obsolete
+ − 1370
+ − 1371 Use setCompleter() instead.
+ − 1372 */
+ − 1373 void QComboBox::setAutoCompletion(bool enable)
+ − 1374 {
+ − 1375 Q_D(QComboBox);
+ − 1376
+ − 1377 #ifdef QT_KEYPAD_NAVIGATION
+ − 1378 if (QApplication::keypadNavigationEnabled() && !enable && isEditable())
+ − 1379 qWarning("QComboBox::setAutoCompletion: auto completion is mandatory when combo box editable");
+ − 1380 #endif
+ − 1381
+ − 1382 d->autoCompletion = enable;
+ − 1383 if (!d->lineEdit)
+ − 1384 return;
+ − 1385 if (enable) {
+ − 1386 if (d->lineEdit->completer())
+ − 1387 return;
+ − 1388 d->completer = new QCompleter(d->model, d->lineEdit);
+ − 1389 d->completer->setCaseSensitivity(d->autoCompletionCaseSensitivity);
+ − 1390 d->completer->setCompletionMode(QCompleter::InlineCompletion);
+ − 1391 d->completer->setCompletionColumn(d->modelColumn);
+ − 1392 d->lineEdit->setCompleter(d->completer);
+ − 1393 d->completer->setWidget(this);
+ − 1394 } else {
+ − 1395 d->lineEdit->setCompleter(0);
+ − 1396 }
+ − 1397 }
+ − 1398
+ − 1399 /*!
+ − 1400 \property QComboBox::autoCompletionCaseSensitivity
+ − 1401 \brief whether string comparisons are case-sensitive or case-insensitive for auto-completion
+ − 1402 \obsolete
+ − 1403
+ − 1404 By default, this property is Qt::CaseInsensitive.
+ − 1405
+ − 1406 Use setCompleter() instead. Case sensitivity of the auto completion can be
+ − 1407 changed using QCompleter::setCaseSensitivity().
+ − 1408
+ − 1409 \sa autoCompletion
+ − 1410 */
+ − 1411
+ − 1412 /*!
+ − 1413 \obsolete
+ − 1414
+ − 1415 Use setCompleter() and QCompleter::setCaseSensitivity() instead.
+ − 1416 */
+ − 1417 Qt::CaseSensitivity QComboBox::autoCompletionCaseSensitivity() const
+ − 1418 {
+ − 1419 Q_D(const QComboBox);
+ − 1420 return d->autoCompletionCaseSensitivity;
+ − 1421 }
+ − 1422
+ − 1423 /*!
+ − 1424 \obsolete
+ − 1425
+ − 1426 Use setCompleter() and QCompleter::setCaseSensitivity() instead.
+ − 1427 */
+ − 1428 void QComboBox::setAutoCompletionCaseSensitivity(Qt::CaseSensitivity sensitivity)
+ − 1429 {
+ − 1430 Q_D(QComboBox);
+ − 1431 d->autoCompletionCaseSensitivity = sensitivity;
+ − 1432 if (d->lineEdit && d->lineEdit->completer())
+ − 1433 d->lineEdit->completer()->setCaseSensitivity(sensitivity);
+ − 1434 }
+ − 1435
+ − 1436 #endif // QT_NO_COMPLETER
+ − 1437
+ − 1438 /*!
+ − 1439 \property QComboBox::duplicatesEnabled
+ − 1440 \brief whether the user can enter duplicate items into the combobox
+ − 1441
+ − 1442 Note that it is always possible to programmatically insert duplicate items into the
+ − 1443 combobox.
+ − 1444
+ − 1445 By default, this property is false (duplicates are not allowed).
+ − 1446 */
+ − 1447 bool QComboBox::duplicatesEnabled() const
+ − 1448 {
+ − 1449 Q_D(const QComboBox);
+ − 1450 return d->duplicatesEnabled;
+ − 1451 }
+ − 1452
+ − 1453 void QComboBox::setDuplicatesEnabled(bool enable)
+ − 1454 {
+ − 1455 Q_D(QComboBox);
+ − 1456 d->duplicatesEnabled = enable;
+ − 1457 }
+ − 1458
+ − 1459 /*! \fn int QComboBox::findText(const QString &text, Qt::MatchFlags flags = Qt::MatchExactly|Qt::MatchCaseSensitive) const
+ − 1460
+ − 1461 Returns the index of the item containing the given \a text; otherwise
+ − 1462 returns -1.
+ − 1463
+ − 1464 The \a flags specify how the items in the combobox are searched.
+ − 1465 */
+ − 1466
+ − 1467 /*!
+ − 1468 Returns the index of the item containing the given \a data for the
+ − 1469 given \a role; otherwise returns -1.
+ − 1470
+ − 1471 The \a flags specify how the items in the combobox are searched.
+ − 1472 */
+ − 1473 int QComboBox::findData(const QVariant &data, int role, Qt::MatchFlags flags) const
+ − 1474 {
+ − 1475 Q_D(const QComboBox);
+ − 1476 QModelIndexList result;
+ − 1477 QModelIndex start = d->model->index(0, d->modelColumn, d->root);
+ − 1478 result = d->model->match(start, role, data, 1, flags);
+ − 1479 if (result.isEmpty())
+ − 1480 return -1;
+ − 1481 return result.first().row();
+ − 1482 }
+ − 1483
+ − 1484 /*!
+ − 1485 \property QComboBox::insertPolicy
+ − 1486 \brief the policy used to determine where user-inserted items should
+ − 1487 appear in the combobox
+ − 1488
+ − 1489 The default value is \l AtBottom, indicating that new items will appear
+ − 1490 at the bottom of the list of items.
+ − 1491
+ − 1492 \sa InsertPolicy
+ − 1493 */
+ − 1494
+ − 1495 QComboBox::InsertPolicy QComboBox::insertPolicy() const
+ − 1496 {
+ − 1497 Q_D(const QComboBox);
+ − 1498 return d->insertPolicy;
+ − 1499 }
+ − 1500
+ − 1501 void QComboBox::setInsertPolicy(InsertPolicy policy)
+ − 1502 {
+ − 1503 Q_D(QComboBox);
+ − 1504 d->insertPolicy = policy;
+ − 1505 }
+ − 1506
+ − 1507 /*!
+ − 1508 \property QComboBox::sizeAdjustPolicy
+ − 1509 \brief the policy describing how the size of the combobox changes
+ − 1510 when the content changes
+ − 1511
+ − 1512 The default value is \l AdjustToContentsOnFirstShow.
+ − 1513
+ − 1514 \sa SizeAdjustPolicy
+ − 1515 */
+ − 1516
+ − 1517 QComboBox::SizeAdjustPolicy QComboBox::sizeAdjustPolicy() const
+ − 1518 {
+ − 1519 Q_D(const QComboBox);
+ − 1520 return d->sizeAdjustPolicy;
+ − 1521 }
+ − 1522
+ − 1523 void QComboBox::setSizeAdjustPolicy(QComboBox::SizeAdjustPolicy policy)
+ − 1524 {
+ − 1525 Q_D(QComboBox);
+ − 1526 if (policy == d->sizeAdjustPolicy)
+ − 1527 return;
+ − 1528
+ − 1529 d->sizeAdjustPolicy = policy;
+ − 1530 d->sizeHint = QSize();
+ − 1531 d->adjustComboBoxSize();
+ − 1532 updateGeometry();
+ − 1533 }
+ − 1534
+ − 1535 /*!
+ − 1536 \property QComboBox::minimumContentsLength
+ − 1537 \brief the minimum number of characters that should fit into the combobox.
+ − 1538
+ − 1539 The default value is 0.
+ − 1540
+ − 1541 If this property is set to a positive value, the
+ − 1542 minimumSizeHint() and sizeHint() take it into account.
+ − 1543
+ − 1544 \sa sizeAdjustPolicy
+ − 1545 */
+ − 1546 int QComboBox::minimumContentsLength() const
+ − 1547 {
+ − 1548 Q_D(const QComboBox);
+ − 1549 return d->minimumContentsLength;
+ − 1550 }
+ − 1551
+ − 1552 void QComboBox::setMinimumContentsLength(int characters)
+ − 1553 {
+ − 1554 Q_D(QComboBox);
+ − 1555 if (characters == d->minimumContentsLength || characters < 0)
+ − 1556 return;
+ − 1557
+ − 1558 d->minimumContentsLength = characters;
+ − 1559
+ − 1560 if (d->sizeAdjustPolicy == AdjustToContents
+ − 1561 || d->sizeAdjustPolicy == AdjustToMinimumContentsLength
+ − 1562 || d->sizeAdjustPolicy == AdjustToMinimumContentsLengthWithIcon) {
+ − 1563 d->sizeHint = QSize();
+ − 1564 d->adjustComboBoxSize();
+ − 1565 updateGeometry();
+ − 1566 }
+ − 1567 }
+ − 1568
+ − 1569 /*!
+ − 1570 \property QComboBox::iconSize
+ − 1571 \brief the size of the icons shown in the combobox.
+ − 1572
+ − 1573 Unless explicitly set this returns the default value of the
+ − 1574 current style. This size is the maximum size that icons can have;
+ − 1575 icons of smaller size are not scaled up.
+ − 1576 */
+ − 1577
+ − 1578 QSize QComboBox::iconSize() const
+ − 1579 {
+ − 1580 Q_D(const QComboBox);
+ − 1581 if (d->iconSize.isValid())
+ − 1582 return d->iconSize;
+ − 1583
+ − 1584 int iconWidth = style()->pixelMetric(QStyle::PM_SmallIconSize, 0, this);
+ − 1585 return QSize(iconWidth, iconWidth);
+ − 1586 }
+ − 1587
+ − 1588 void QComboBox::setIconSize(const QSize &size)
+ − 1589 {
+ − 1590 Q_D(QComboBox);
+ − 1591 if (size == d->iconSize)
+ − 1592 return;
+ − 1593
+ − 1594 view()->setIconSize(size);
+ − 1595 d->iconSize = size;
+ − 1596 d->sizeHint = QSize();
+ − 1597 updateGeometry();
+ − 1598 }
+ − 1599
+ − 1600 /*!
+ − 1601 \property QComboBox::editable
+ − 1602 \brief whether the combo box can be edited by the user
+ − 1603
+ − 1604 By default, this property is false.
+ − 1605 */
+ − 1606 bool QComboBox::isEditable() const
+ − 1607 {
+ − 1608 Q_D(const QComboBox);
+ − 1609 return d->lineEdit != 0;
+ − 1610 }
+ − 1611
+ − 1612 /*! \internal
+ − 1613 update the default delegate
+ − 1614 depending on the style's SH_ComboBox_Popup hint, we use a different default delegate.
+ − 1615
+ − 1616 but we do not change the delegate is the combobox use a custom delegate,
+ − 1617 unless \a force is set to true.
+ − 1618 */
+ − 1619 void QComboBoxPrivate::updateDelegate(bool force)
+ − 1620 {
+ − 1621 Q_Q(QComboBox);
+ − 1622 QStyleOptionComboBox opt;
+ − 1623 q->initStyleOption(&opt);
+ − 1624 if (q->style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, q)) {
+ − 1625 if (force || qobject_cast<QComboBoxDelegate *>(q->itemDelegate()))
+ − 1626 q->setItemDelegate(new QComboMenuDelegate(q->view(), q));
+ − 1627 } else {
+ − 1628 if (force || qobject_cast<QComboMenuDelegate *>(q->itemDelegate()))
+ − 1629 q->setItemDelegate(new QComboBoxDelegate(q->view(), q));
+ − 1630 }
+ − 1631 }
+ − 1632
+ − 1633 QIcon QComboBoxPrivate::itemIcon(const QModelIndex &index) const
+ − 1634 {
+ − 1635 QVariant decoration = model->data(index, Qt::DecorationRole);
+ − 1636 if (decoration.type() == QVariant::Pixmap)
+ − 1637 return QIcon(qvariant_cast<QPixmap>(decoration));
+ − 1638 else
+ − 1639 return qvariant_cast<QIcon>(decoration);
+ − 1640 }
+ − 1641
+ − 1642 void QComboBox::setEditable(bool editable)
+ − 1643 {
+ − 1644 Q_D(QComboBox);
+ − 1645 if (isEditable() == editable)
+ − 1646 return;
+ − 1647
+ − 1648 d->updateDelegate();
+ − 1649
+ − 1650 QStyleOptionComboBox opt;
+ − 1651 initStyleOption(&opt);
+ − 1652 if (editable) {
+ − 1653 if (style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)) {
+ − 1654 d->viewContainer()->updateScrollers();
+ − 1655 view()->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
+ − 1656 }
+ − 1657 QLineEdit *le = new QLineEdit(this);
+ − 1658 setLineEdit(le);
+ − 1659 } else {
+ − 1660 if (style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)) {
+ − 1661 d->viewContainer()->updateScrollers();
+ − 1662 view()->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ − 1663 }
+ − 1664 setAttribute(Qt::WA_InputMethodEnabled, false);
+ − 1665 d->lineEdit->hide();
+ − 1666 d->lineEdit->deleteLater();
+ − 1667 d->lineEdit = 0;
+ − 1668 }
+ − 1669
+ − 1670 d->viewContainer()->updateTopBottomMargin();
+ − 1671 if (!testAttribute(Qt::WA_Resized))
+ − 1672 adjustSize();
+ − 1673 }
+ − 1674
+ − 1675 /*!
+ − 1676 Sets the line \a edit to use instead of the current line edit widget.
+ − 1677
+ − 1678 The combo box takes ownership of the line edit.
+ − 1679 */
+ − 1680 void QComboBox::setLineEdit(QLineEdit *edit)
+ − 1681 {
+ − 1682 Q_D(QComboBox);
+ − 1683 if (!edit) {
+ − 1684 qWarning("QComboBox::setLineEdit: cannot set a 0 line edit");
+ − 1685 return;
+ − 1686 }
+ − 1687
+ − 1688 if (edit == d->lineEdit)
+ − 1689 return;
+ − 1690
+ − 1691 edit->setText(currentText());
+ − 1692 delete d->lineEdit;
+ − 1693
+ − 1694 d->lineEdit = edit;
+ − 1695 if (d->lineEdit->parent() != this)
+ − 1696 d->lineEdit->setParent(this);
+ − 1697 connect(d->lineEdit, SIGNAL(returnPressed()), this, SLOT(_q_returnPressed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1698 connect(d->lineEdit, SIGNAL(editingFinished()), this, SLOT(_q_editingFinished()));
0
+ − 1699 connect(d->lineEdit, SIGNAL(textChanged(QString)), this, SIGNAL(editTextChanged(QString)));
+ − 1700 #ifdef QT3_SUPPORT
+ − 1701 connect(d->lineEdit, SIGNAL(textChanged(QString)), this, SIGNAL(textChanged(QString)));
+ − 1702 #endif
+ − 1703 d->lineEdit->setFrame(false);
+ − 1704 d->lineEdit->setContextMenuPolicy(Qt::NoContextMenu);
+ − 1705 d->lineEdit->setFocusProxy(this);
+ − 1706 d->lineEdit->setAttribute(Qt::WA_MacShowFocusRect, false);
+ − 1707 #ifndef QT_NO_COMPLETER
+ − 1708 setAutoCompletion(d->autoCompletion);
+ − 1709 #endif
+ − 1710
+ − 1711 #ifdef QT_KEYPAD_NAVIGATION
+ − 1712 #ifndef QT_NO_COMPLETER
+ − 1713 if (QApplication::keypadNavigationEnabled()) {
+ − 1714 // Editable combo boxes will have a completer that is set to UnfilteredPopupCompletion.
+ − 1715 // This means that when the user enters edit mode they are immediately presented with a
+ − 1716 // list of possible completions.
+ − 1717 setAutoCompletion(true);
+ − 1718 if (d->completer) {
+ − 1719 d->completer->setCompletionMode(QCompleter::UnfilteredPopupCompletion);
+ − 1720 connect(d->completer, SIGNAL(activated(QModelIndex)), this, SLOT(_q_completerActivated()));
+ − 1721 }
+ − 1722 }
+ − 1723 #endif
+ − 1724 #endif
+ − 1725
+ − 1726 setAttribute(Qt::WA_InputMethodEnabled);
+ − 1727 d->updateLayoutDirection();
+ − 1728 d->updateLineEditGeometry();
+ − 1729 if (isVisible())
+ − 1730 d->lineEdit->show();
+ − 1731
+ − 1732 update();
+ − 1733 }
+ − 1734
+ − 1735 /*!
+ − 1736 Returns the line edit used to edit items in the combobox, or 0 if there
+ − 1737 is no line edit.
+ − 1738
+ − 1739 Only editable combo boxes have a line edit.
+ − 1740 */
+ − 1741 QLineEdit *QComboBox::lineEdit() const
+ − 1742 {
+ − 1743 Q_D(const QComboBox);
+ − 1744 return d->lineEdit;
+ − 1745 }
+ − 1746
+ − 1747 #ifndef QT_NO_VALIDATOR
+ − 1748 /*!
+ − 1749 \fn void QComboBox::setValidator(const QValidator *validator)
+ − 1750
+ − 1751 Sets the \a validator to use instead of the current validator.
+ − 1752 */
+ − 1753
+ − 1754 void QComboBox::setValidator(const QValidator *v)
+ − 1755 {
+ − 1756 Q_D(QComboBox);
+ − 1757 if (d->lineEdit)
+ − 1758 d->lineEdit->setValidator(v);
+ − 1759 }
+ − 1760
+ − 1761 /*!
+ − 1762 Returns the validator that is used to constrain text input for the
+ − 1763 combobox.
+ − 1764
+ − 1765 \sa editable
+ − 1766 */
+ − 1767 const QValidator *QComboBox::validator() const
+ − 1768 {
+ − 1769 Q_D(const QComboBox);
+ − 1770 return d->lineEdit ? d->lineEdit->validator() : 0;
+ − 1771 }
+ − 1772 #endif // QT_NO_VALIDATOR
+ − 1773
+ − 1774 #ifndef QT_NO_COMPLETER
+ − 1775
+ − 1776 /*!
+ − 1777 \fn void QComboBox::setCompleter(QCompleter *completer)
+ − 1778 \since 4.2
+ − 1779
+ − 1780 Sets the \a completer to use instead of the current completer.
+ − 1781 If \a completer is 0, auto completion is disabled.
+ − 1782
+ − 1783 By default, for an editable combo box, a QCompleter that
+ − 1784 performs case insensitive inline completion is automatically created.
+ − 1785 */
+ − 1786 void QComboBox::setCompleter(QCompleter *c)
+ − 1787 {
+ − 1788 Q_D(QComboBox);
+ − 1789 if (!d->lineEdit)
+ − 1790 return;
+ − 1791 d->lineEdit->setCompleter(c);
+ − 1792 if (c)
+ − 1793 c->setWidget(this);
+ − 1794 }
+ − 1795
+ − 1796 /*!
+ − 1797 \since 4.2
+ − 1798
+ − 1799 Returns the completer that is used to auto complete text input for the
+ − 1800 combobox.
+ − 1801
+ − 1802 \sa editable
+ − 1803 */
+ − 1804 QCompleter *QComboBox::completer() const
+ − 1805 {
+ − 1806 Q_D(const QComboBox);
+ − 1807 return d->lineEdit ? d->lineEdit->completer() : 0;
+ − 1808 }
+ − 1809
+ − 1810 #endif // QT_NO_COMPLETER
+ − 1811
+ − 1812 /*!
+ − 1813 Returns the item delegate used by the popup list view.
+ − 1814
+ − 1815 \sa setItemDelegate()
+ − 1816 */
+ − 1817 QAbstractItemDelegate *QComboBox::itemDelegate() const
+ − 1818 {
+ − 1819 return view()->itemDelegate();
+ − 1820 }
+ − 1821
+ − 1822 /*!
+ − 1823 Sets the item \a delegate for the popup list view.
+ − 1824 The combobox takes ownership of the delegate.
+ − 1825
+ − 1826 \warning You should not share the same instance of a delegate between comboboxes,
+ − 1827 widget mappers or views. Doing so can cause incorrect or unintuitive editing behavior
+ − 1828 since each view connected to a given delegate may receive the
+ − 1829 \l{QAbstractItemDelegate::}{closeEditor()} signal, and attempt to access, modify or
+ − 1830 close an editor that has already been closed.
+ − 1831
+ − 1832 \sa itemDelegate()
+ − 1833 */
+ − 1834 void QComboBox::setItemDelegate(QAbstractItemDelegate *delegate)
+ − 1835 {
+ − 1836 if (!delegate) {
+ − 1837 qWarning("QComboBox::setItemDelegate: cannot set a 0 delegate");
+ − 1838 return;
+ − 1839 }
+ − 1840 delete view()->itemDelegate();
+ − 1841 view()->setItemDelegate(delegate);
+ − 1842 }
+ − 1843
+ − 1844 /*!
+ − 1845 Returns the model used by the combobox.
+ − 1846 */
+ − 1847
+ − 1848 QAbstractItemModel *QComboBox::model() const
+ − 1849 {
+ − 1850 Q_D(const QComboBox);
+ − 1851 if (d->model == QAbstractItemModelPrivate::staticEmptyModel()) {
+ − 1852 QComboBox *that = const_cast<QComboBox*>(this);
+ − 1853 that->setModel(new QStandardItemModel(0, 1, that));
+ − 1854 }
+ − 1855 return d->model;
+ − 1856 }
+ − 1857
+ − 1858 /*!
+ − 1859 Sets the model to be \a model. \a model must not be 0.
+ − 1860 If you want to clear the contents of a model, call clear().
+ − 1861
+ − 1862 \sa clear()
+ − 1863 */
+ − 1864 void QComboBox::setModel(QAbstractItemModel *model)
+ − 1865 {
+ − 1866 Q_D(QComboBox);
+ − 1867
+ − 1868 if (!model) {
+ − 1869 qWarning("QComboBox::setModel: cannot set a 0 model");
+ − 1870 return;
+ − 1871 }
+ − 1872
+ − 1873 #ifndef QT_NO_COMPLETER
+ − 1874 if (d->lineEdit && d->lineEdit->completer()
+ − 1875 && d->lineEdit->completer() == d->completer)
+ − 1876 d->lineEdit->completer()->setModel(model);
+ − 1877 #endif
+ − 1878 if (d->model) {
+ − 1879 disconnect(d->model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+ − 1880 this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
+ − 1881 disconnect(d->model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1882 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1883 disconnect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ − 1884 this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
+ − 1885 disconnect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1886 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1887 disconnect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ − 1888 this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
+ − 1889 disconnect(d->model, SIGNAL(destroyed()),
+ − 1890 this, SLOT(_q_modelDestroyed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1891 disconnect(d->model, SIGNAL(modelAboutToBeReset()),
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1892 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1893 disconnect(d->model, SIGNAL(modelReset()),
+ − 1894 this, SLOT(_q_modelReset()));
+ − 1895 if (d->model->QObject::parent() == this)
+ − 1896 delete d->model;
+ − 1897 }
+ − 1898
+ − 1899 d->model = model;
+ − 1900
+ − 1901 connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
+ − 1902 this, SLOT(_q_dataChanged(QModelIndex,QModelIndex)));
+ − 1903 connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1904 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1905 connect(model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ − 1906 this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
+ − 1907 connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1908 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1909 connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ − 1910 this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
+ − 1911 connect(model, SIGNAL(destroyed()),
+ − 1912 this, SLOT(_q_modelDestroyed()));
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1913 connect(model, SIGNAL(modelAboutToBeReset()),
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1914 this, SLOT(_q_updateIndexBeforeChange()));
0
+ − 1915 connect(model, SIGNAL(modelReset()),
+ − 1916 this, SLOT(_q_modelReset()));
+ − 1917
+ − 1918 if (d->container)
+ − 1919 d->container->itemView()->setModel(model);
+ − 1920
+ − 1921 bool currentReset = false;
+ − 1922
+ − 1923 if (count()) {
+ − 1924 for (int pos=0; pos < count(); pos++) {
+ − 1925 if (d->model->index(pos, d->modelColumn, d->root).flags() & Qt::ItemIsEnabled) {
+ − 1926 setCurrentIndex(pos);
+ − 1927 currentReset = true;
+ − 1928 break;
+ − 1929 }
+ − 1930 }
+ − 1931 }
+ − 1932
+ − 1933 if (!currentReset)
+ − 1934 setCurrentIndex(-1);
+ − 1935
+ − 1936 d->modelChanged();
+ − 1937 }
+ − 1938
+ − 1939 /*!
+ − 1940 Returns the root model item index for the items in the combobox.
+ − 1941
+ − 1942 \sa setRootModelIndex()
+ − 1943 */
+ − 1944
+ − 1945 QModelIndex QComboBox::rootModelIndex() const
+ − 1946 {
+ − 1947 Q_D(const QComboBox);
+ − 1948 return QModelIndex(d->root);
+ − 1949 }
+ − 1950
+ − 1951 /*!
+ − 1952 Sets the root model item \a index for the items in the combobox.
+ − 1953
+ − 1954 \sa rootModelIndex()
+ − 1955 */
+ − 1956 void QComboBox::setRootModelIndex(const QModelIndex &index)
+ − 1957 {
+ − 1958 Q_D(QComboBox);
+ − 1959 d->root = QPersistentModelIndex(index);
+ − 1960 view()->setRootIndex(index);
+ − 1961 update();
+ − 1962 }
+ − 1963
+ − 1964 /*!
+ − 1965 \property QComboBox::currentIndex
+ − 1966 \brief the index of the current item in the combobox.
+ − 1967
+ − 1968 The current index can change when inserting or removing items.
+ − 1969
+ − 1970 By default, for an empty combo box or a combo box in which no current
+ − 1971 item is set, this property has a value of -1.
+ − 1972 */
+ − 1973 int QComboBox::currentIndex() const
+ − 1974 {
+ − 1975 Q_D(const QComboBox);
+ − 1976 return d->currentIndex.row();
+ − 1977 }
+ − 1978
+ − 1979 void QComboBox::setCurrentIndex(int index)
+ − 1980 {
+ − 1981 Q_D(QComboBox);
+ − 1982 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 1983 d->setCurrentIndex(mi);
+ − 1984 }
+ − 1985
+ − 1986 void QComboBoxPrivate::setCurrentIndex(const QModelIndex &mi)
+ − 1987 {
+ − 1988 Q_Q(QComboBox);
+ − 1989 bool indexChanged = (mi != currentIndex);
+ − 1990 if (indexChanged)
+ − 1991 currentIndex = QPersistentModelIndex(mi);
+ − 1992 if (lineEdit) {
+ − 1993 QString newText = q->itemText(currentIndex.row());
+ − 1994 if (lineEdit->text() != newText)
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 1995 lineEdit->setText(newText);
0
+ − 1996 updateLineEditGeometry();
+ − 1997 }
+ − 1998 if (indexChanged) {
+ − 1999 q->update();
+ − 2000 _q_emitCurrentIndexChanged(currentIndex);
+ − 2001 }
+ − 2002 }
+ − 2003
+ − 2004 /*!
+ − 2005 \property QComboBox::currentText
+ − 2006 \brief the text of the current item
+ − 2007
+ − 2008 By default, for an empty combo box or a combo box in which no current
+ − 2009 item is set, this property contains an empty string.
+ − 2010 */
+ − 2011 QString QComboBox::currentText() const
+ − 2012 {
+ − 2013 Q_D(const QComboBox);
+ − 2014 if (d->lineEdit)
+ − 2015 return d->lineEdit->text();
+ − 2016 else if (d->currentIndex.isValid())
+ − 2017 return d->itemText(d->currentIndex);
+ − 2018 else
+ − 2019 return QString();
+ − 2020 }
+ − 2021
+ − 2022 /*!
+ − 2023 Returns the text for the given \a index in the combobox.
+ − 2024 */
+ − 2025 QString QComboBox::itemText(int index) const
+ − 2026 {
+ − 2027 Q_D(const QComboBox);
+ − 2028 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2029 return d->itemText(mi);
+ − 2030 }
+ − 2031
+ − 2032 /*!
+ − 2033 Returns the icon for the given \a index in the combobox.
+ − 2034 */
+ − 2035 QIcon QComboBox::itemIcon(int index) const
+ − 2036 {
+ − 2037 Q_D(const QComboBox);
+ − 2038 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2039 return d->itemIcon(mi);
+ − 2040 }
+ − 2041
+ − 2042 /*!
+ − 2043 Returns the data for the given \a role in the given \a index in the
+ − 2044 combobox, or QVariant::Invalid if there is no data for this role.
+ − 2045 */
+ − 2046 QVariant QComboBox::itemData(int index, int role) const
+ − 2047 {
+ − 2048 Q_D(const QComboBox);
+ − 2049 QModelIndex mi = d->model->index(index, d->modelColumn, d->root);
+ − 2050 return d->model->data(mi, role);
+ − 2051 }
+ − 2052
+ − 2053 /*!
+ − 2054 \fn void QComboBox::insertItem(int index, const QString &text, const QVariant &userData)
+ − 2055
+ − 2056 Inserts the \a text and \a userData (stored in the Qt::UserRole)
+ − 2057 into the combobox at the given \a index.
+ − 2058
+ − 2059 If the index is equal to or higher than the total number of items,
+ − 2060 the new item is appended to the list of existing items. If the
+ − 2061 index is zero or negative, the new item is prepended to the list
+ − 2062 of existing items.
+ − 2063
+ − 2064 \sa insertItems()
+ − 2065 */
+ − 2066
+ − 2067 /*!
+ − 2068
+ − 2069 Inserts the \a icon, \a text and \a userData (stored in the
+ − 2070 Qt::UserRole) into the combobox at the given \a index.
+ − 2071
+ − 2072 If the index is equal to or higher than the total number of items,
+ − 2073 the new item is appended to the list of existing items. If the
+ − 2074 index is zero or negative, the new item is prepended to the list
+ − 2075 of existing items.
+ − 2076
+ − 2077 \sa insertItems()
+ − 2078 */
+ − 2079 void QComboBox::insertItem(int index, const QIcon &icon, const QString &text, const QVariant &userData)
+ − 2080 {
+ − 2081 Q_D(QComboBox);
+ − 2082 int itemCount = count();
+ − 2083 index = qBound(0, index, itemCount);
+ − 2084 if (index >= d->maxCount)
+ − 2085 return;
+ − 2086
+ − 2087 // For the common case where we are using the built in QStandardItemModel
+ − 2088 // construct a QStandardItem, reducing the number of expensive signals from the model
+ − 2089 if (QStandardItemModel *m = qobject_cast<QStandardItemModel*>(d->model)) {
+ − 2090 QStandardItem *item = new QStandardItem(text);
+ − 2091 if (!icon.isNull()) item->setData(icon, Qt::DecorationRole);
+ − 2092 if (userData.isValid()) item->setData(userData, Qt::UserRole);
+ − 2093 m->insertRow(index, item);
+ − 2094 ++itemCount;
+ − 2095 } else {
+ − 2096 d->inserting = true;
+ − 2097 if (d->model->insertRows(index, 1, d->root)) {
+ − 2098 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2099 if (icon.isNull() && !userData.isValid()) {
+ − 2100 d->model->setData(item, text, Qt::EditRole);
+ − 2101 } else {
+ − 2102 QMap<int, QVariant> values;
+ − 2103 if (!text.isNull()) values.insert(Qt::EditRole, text);
+ − 2104 if (!icon.isNull()) values.insert(Qt::DecorationRole, icon);
+ − 2105 if (userData.isValid()) values.insert(Qt::UserRole, userData);
+ − 2106 if (!values.isEmpty()) d->model->setItemData(item, values);
+ − 2107 }
+ − 2108 d->inserting = false;
+ − 2109 d->_q_rowsInserted(d->root, index, index);
+ − 2110 ++itemCount;
+ − 2111 } else {
+ − 2112 d->inserting = false;
+ − 2113 }
+ − 2114 }
+ − 2115
+ − 2116 if (itemCount > d->maxCount)
+ − 2117 d->model->removeRows(itemCount - 1, itemCount - d->maxCount, d->root);
+ − 2118 }
+ − 2119
+ − 2120 /*!
+ − 2121 Inserts the strings from the \a list into the combobox as separate items,
+ − 2122 starting at the \a index specified.
+ − 2123
+ − 2124 If the index is equal to or higher than the total number of items, the new items
+ − 2125 are appended to the list of existing items. If the index is zero or negative, the
+ − 2126 new items are prepended to the list of existing items.
+ − 2127
+ − 2128 \sa insertItem()
+ − 2129 */
+ − 2130 void QComboBox::insertItems(int index, const QStringList &list)
+ − 2131 {
+ − 2132 Q_D(QComboBox);
+ − 2133 if (list.isEmpty())
+ − 2134 return;
+ − 2135 index = qBound(0, index, count());
+ − 2136 int insertCount = qMin(d->maxCount - index, list.count());
+ − 2137 if (insertCount <= 0)
+ − 2138 return;
+ − 2139 // For the common case where we are using the built in QStandardItemModel
+ − 2140 // construct a QStandardItem, reducing the number of expensive signals from the model
+ − 2141 if (QStandardItemModel *m = qobject_cast<QStandardItemModel*>(d->model)) {
+ − 2142 QList<QStandardItem *> items;
+ − 2143 QStandardItem *hiddenRoot = m->invisibleRootItem();
+ − 2144 for (int i = 0; i < insertCount; ++i)
+ − 2145 items.append(new QStandardItem(list.at(i)));
+ − 2146 hiddenRoot->insertRows(index, items);
+ − 2147 } else {
+ − 2148 d->inserting = true;
+ − 2149 if (d->model->insertRows(index, insertCount, d->root)) {
+ − 2150 QModelIndex item;
+ − 2151 for (int i = 0; i < insertCount; ++i) {
+ − 2152 item = d->model->index(i+index, d->modelColumn, d->root);
+ − 2153 d->model->setData(item, list.at(i), Qt::EditRole);
+ − 2154 }
+ − 2155 d->inserting = false;
+ − 2156 d->_q_rowsInserted(d->root, index, index + insertCount - 1);
+ − 2157 } else {
+ − 2158 d->inserting = false;
+ − 2159 }
+ − 2160 }
+ − 2161
+ − 2162 int mc = count();
+ − 2163 if (mc > d->maxCount)
+ − 2164 d->model->removeRows(d->maxCount, mc - d->maxCount, d->root);
+ − 2165 }
+ − 2166
+ − 2167 /*!
+ − 2168 \since 4.4
+ − 2169
+ − 2170 Inserts a separator item into the combobox at the given \a index.
+ − 2171
+ − 2172 If the index is equal to or higher than the total number of items, the new item
+ − 2173 is appended to the list of existing items. If the index is zero or negative, the
+ − 2174 new item is prepended to the list of existing items.
+ − 2175
+ − 2176 \sa insertItem()
+ − 2177 */
+ − 2178 void QComboBox::insertSeparator(int index)
+ − 2179 {
+ − 2180 Q_D(QComboBox);
+ − 2181 int itemCount = count();
+ − 2182 index = qBound(0, index, itemCount);
+ − 2183 if (index >= d->maxCount)
+ − 2184 return;
+ − 2185 insertItem(index, QIcon(), QString());
+ − 2186 QComboBoxDelegate::setSeparator(d->model, d->model->index(index, 0, d->root));
+ − 2187 }
+ − 2188
+ − 2189 /*!
+ − 2190 Removes the item at the given \a index from the combobox.
+ − 2191 This will update the current index if the index is removed.
+ − 2192
+ − 2193 This function does nothing if \a index is out of range.
+ − 2194 */
+ − 2195 void QComboBox::removeItem(int index)
+ − 2196 {
+ − 2197 Q_D(QComboBox);
+ − 2198 if (index < 0 || index >= count())
+ − 2199 return;
+ − 2200 d->model->removeRows(index, 1, d->root);
+ − 2201 }
+ − 2202
+ − 2203 /*!
+ − 2204 Sets the \a text for the item on the given \a index in the combobox.
+ − 2205 */
+ − 2206 void QComboBox::setItemText(int index, const QString &text)
+ − 2207 {
+ − 2208 Q_D(const QComboBox);
+ − 2209 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2210 if (item.isValid()) {
+ − 2211 d->model->setData(item, text, Qt::EditRole);
+ − 2212 }
+ − 2213 }
+ − 2214
+ − 2215 /*!
+ − 2216 Sets the \a icon for the item on the given \a index in the combobox.
+ − 2217 */
+ − 2218 void QComboBox::setItemIcon(int index, const QIcon &icon)
+ − 2219 {
+ − 2220 Q_D(const QComboBox);
+ − 2221 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2222 if (item.isValid()) {
+ − 2223 d->model->setData(item, icon, Qt::DecorationRole);
+ − 2224 }
+ − 2225 }
+ − 2226
+ − 2227 /*!
+ − 2228 Sets the data \a role for the item on the given \a index in the combobox
+ − 2229 to the specified \a value.
+ − 2230 */
+ − 2231 void QComboBox::setItemData(int index, const QVariant &value, int role)
+ − 2232 {
+ − 2233 Q_D(const QComboBox);
+ − 2234 QModelIndex item = d->model->index(index, d->modelColumn, d->root);
+ − 2235 if (item.isValid()) {
+ − 2236 d->model->setData(item, value, role);
+ − 2237 }
+ − 2238 }
+ − 2239
+ − 2240 /*!
+ − 2241 Returns the list view used for the combobox popup.
+ − 2242 */
+ − 2243 QAbstractItemView *QComboBox::view() const
+ − 2244 {
+ − 2245 Q_D(const QComboBox);
+ − 2246 return const_cast<QComboBoxPrivate*>(d)->viewContainer()->itemView();
+ − 2247 }
+ − 2248
+ − 2249 /*!
+ − 2250 Sets the view to be used in the combobox popup to the given \a
+ − 2251 itemView. The combobox takes ownership of the view.
+ − 2252
+ − 2253 Note: If you want to use the convenience views (like QListWidget,
+ − 2254 QTableWidget or QTreeWidget), make sure to call setModel() on the
+ − 2255 combobox with the convenience widgets model before calling this
+ − 2256 function.
+ − 2257 */
+ − 2258 void QComboBox::setView(QAbstractItemView *itemView)
+ − 2259 {
+ − 2260 Q_D(QComboBox);
+ − 2261 if (!itemView) {
+ − 2262 qWarning("QComboBox::setView: cannot set a 0 view");
+ − 2263 return;
+ − 2264 }
+ − 2265
+ − 2266 if (itemView->model() != d->model)
+ − 2267 itemView->setModel(d->model);
+ − 2268 d->viewContainer()->setItemView(itemView);
+ − 2269 }
+ − 2270
+ − 2271 /*!
+ − 2272 \reimp
+ − 2273 */
+ − 2274 QSize QComboBox::minimumSizeHint() const
+ − 2275 {
+ − 2276 Q_D(const QComboBox);
+ − 2277 return d->recomputeSizeHint(d->minimumSizeHint);
+ − 2278 }
+ − 2279
+ − 2280 /*!
+ − 2281 \reimp
+ − 2282
+ − 2283 This implementation caches the size hint to avoid resizing when
+ − 2284 the contents change dynamically. To invalidate the cached value
+ − 2285 change the \l sizeAdjustPolicy.
+ − 2286 */
+ − 2287 QSize QComboBox::sizeHint() const
+ − 2288 {
+ − 2289 Q_D(const QComboBox);
+ − 2290 return d->recomputeSizeHint(d->sizeHint);
+ − 2291 }
+ − 2292
+ − 2293 /*!
+ − 2294 Displays the list of items in the combobox. If the list is empty
+ − 2295 then the no items will be shown.
+ − 2296
+ − 2297 If you reimplement this function to show a custom pop-up, make
+ − 2298 sure you call hidePopup() to reset the internal state.
+ − 2299
+ − 2300 \sa hidePopup()
+ − 2301 */
+ − 2302 void QComboBox::showPopup()
+ − 2303 {
+ − 2304 Q_D(QComboBox);
+ − 2305 if (count() <= 0)
+ − 2306 return;
+ − 2307
+ − 2308 #ifdef QT_KEYPAD_NAVIGATION
+ − 2309 #ifndef QT_NO_COMPLETER
+ − 2310 if (QApplication::keypadNavigationEnabled() && d->completer) {
+ − 2311 // editable combo box is line edit plus completer
+ − 2312 setEditFocus(true);
+ − 2313 d->completer->complete(); // show popup
+ − 2314 return;
+ − 2315 }
+ − 2316 #endif
+ − 2317 #endif
+ − 2318
+ − 2319 QStyle * const style = this->style();
+ − 2320
+ − 2321 // set current item and select it
+ − 2322 view()->selectionModel()->setCurrentIndex(d->currentIndex,
+ − 2323 QItemSelectionModel::ClearAndSelect);
+ − 2324 QComboBoxPrivateContainer* container = d->viewContainer();
+ − 2325 QStyleOptionComboBox opt;
+ − 2326 initStyleOption(&opt);
+ − 2327 QRect listRect(style->subControlRect(QStyle::CC_ComboBox, &opt,
+ − 2328 QStyle::SC_ComboBoxListBoxPopup, this));
+ − 2329 QRect screen = d->popupGeometry(QApplication::desktop()->screenNumber(this));
+ − 2330 QPoint below = mapToGlobal(listRect.bottomLeft());
+ − 2331 int belowHeight = screen.bottom() - below.y();
+ − 2332 QPoint above = mapToGlobal(listRect.topLeft());
+ − 2333 int aboveHeight = above.y() - screen.y();
+ − 2334 bool boundToScreen = !window()->testAttribute(Qt::WA_DontShowOnScreen);
+ − 2335
+ − 2336 const bool usePopup = style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this);
+ − 2337 {
+ − 2338 int listHeight = 0;
+ − 2339 int count = 0;
+ − 2340 QStack<QModelIndex> toCheck;
+ − 2341 toCheck.push(view()->rootIndex());
+ − 2342 #ifndef QT_NO_TREEVIEW
+ − 2343 QTreeView *treeView = qobject_cast<QTreeView*>(view());
+ − 2344 if (treeView && treeView->header() && !treeView->header()->isHidden())
+ − 2345 listHeight += treeView->header()->height();
+ − 2346 #endif
+ − 2347 while (!toCheck.isEmpty()) {
+ − 2348 QModelIndex parent = toCheck.pop();
+ − 2349 for (int i = 0; i < d->model->rowCount(parent); ++i) {
+ − 2350 QModelIndex idx = d->model->index(i, d->modelColumn, parent);
+ − 2351 if (!idx.isValid())
+ − 2352 continue;
+ − 2353 listHeight += view()->visualRect(idx).height() + container->spacing();
+ − 2354 #ifndef QT_NO_TREEVIEW
+ − 2355 if (d->model->hasChildren(idx) && treeView && treeView->isExpanded(idx))
+ − 2356 toCheck.push(idx);
+ − 2357 #endif
+ − 2358 ++count;
+ − 2359 if (!usePopup && count > d->maxVisibleItems) {
+ − 2360 toCheck.clear();
+ − 2361 break;
+ − 2362 }
+ − 2363 }
+ − 2364 }
+ − 2365 listRect.setHeight(listHeight);
+ − 2366 }
+ − 2367
+ − 2368 {
+ − 2369 // add the spacing for the grid on the top and the bottom;
+ − 2370 int heightMargin = 2*container->spacing();
+ − 2371
+ − 2372 // add the frame of the container
+ − 2373 int marginTop, marginBottom;
+ − 2374 container->getContentsMargins(0, &marginTop, 0, &marginBottom);
+ − 2375 heightMargin += marginTop + marginBottom;
+ − 2376
+ − 2377 //add the frame of the view
+ − 2378 view()->getContentsMargins(0, &marginTop, 0, &marginBottom);
+ − 2379 marginTop += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->top;
+ − 2380 marginBottom += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->bottom;
+ − 2381 heightMargin += marginTop + marginBottom;
+ − 2382
+ − 2383 listRect.setHeight(listRect.height() + heightMargin);
+ − 2384 }
+ − 2385
+ − 2386 // Add space for margin at top and bottom if the style wants it.
+ − 2387 if (usePopup)
+ − 2388 listRect.setHeight(listRect.height() + style->pixelMetric(QStyle::PM_MenuVMargin, &opt, this) * 2);
+ − 2389
+ − 2390 // Make sure the popup is wide enough to display its contents.
+ − 2391 if (usePopup) {
+ − 2392 const int diff = d->computeWidthHint() - width();
+ − 2393 if (diff > 0)
+ − 2394 listRect.setWidth(listRect.width() + diff);
+ − 2395 }
+ − 2396
+ − 2397 //we need to activate the layout to make sure the min/maximum size are set when the widget was not yet show
+ − 2398 container->layout()->activate();
+ − 2399 //takes account of the minimum/maximum size of the container
+ − 2400 listRect.setSize( listRect.size().expandedTo(container->minimumSize())
+ − 2401 .boundedTo(container->maximumSize()));
+ − 2402
+ − 2403 // make sure the widget fits on screen
+ − 2404 if (boundToScreen) {
+ − 2405 if (listRect.width() > screen.width() )
+ − 2406 listRect.setWidth(screen.width());
+ − 2407 if (mapToGlobal(listRect.bottomRight()).x() > screen.right()) {
+ − 2408 below.setX(screen.x() + screen.width() - listRect.width());
+ − 2409 above.setX(screen.x() + screen.width() - listRect.width());
+ − 2410 }
+ − 2411 if (mapToGlobal(listRect.topLeft()).x() < screen.x() ) {
+ − 2412 below.setX(screen.x());
+ − 2413 above.setX(screen.x());
+ − 2414 }
+ − 2415 }
+ − 2416
+ − 2417 if (usePopup) {
+ − 2418 // Position horizontally.
+ − 2419 listRect.moveLeft(above.x());
+ − 2420
7
+ − 2421 #ifndef Q_WS_S60
0
+ − 2422 // Position vertically so the curently selected item lines up
+ − 2423 // with the combo box.
+ − 2424 const QRect currentItemRect = view()->visualRect(view()->currentIndex());
+ − 2425 const int offset = listRect.top() - currentItemRect.top();
+ − 2426 listRect.moveTop(above.y() + offset - listRect.top());
7
+ − 2427 #endif
0
+ − 2428
+ − 2429
+ − 2430 // Clamp the listRect height and vertical position so we don't expand outside the
+ − 2431 // available screen geometry.This may override the vertical position, but it is more
+ − 2432 // important to show as much as possible of the popup.
+ − 2433 const int height = !boundToScreen ? listRect.height() : qMin(listRect.height(), screen.height());
7
+ − 2434 #ifdef Q_WS_S60
+ − 2435 //popup needs to be stretched with screen minimum dimension
+ − 2436 listRect.setHeight(qMin(screen.height(), screen.width()));
+ − 2437 #else
0
+ − 2438 listRect.setHeight(height);
7
+ − 2439 #endif
+ − 2440
0
+ − 2441 if (boundToScreen) {
+ − 2442 if (listRect.top() < screen.top())
+ − 2443 listRect.moveTop(screen.top());
+ − 2444 if (listRect.bottom() > screen.bottom())
+ − 2445 listRect.moveBottom(screen.bottom());
+ − 2446 }
7
+ − 2447 #ifdef Q_WS_S60
+ − 2448 if (screen.width() < screen.height()) {
+ − 2449 // in portait, menu should be positioned above softkeys
+ − 2450 listRect.moveBottom(screen.bottom());
+ − 2451 } else {
+ − 2452 // landscape, menu should be at the right and horizontally centered
+ − 2453 listRect.setWidth(listRect.height());
+ − 2454 listRect.moveCenter(screen.center());
+ − 2455 (opt.direction == Qt::LeftToRight) ? listRect.setRight(screen.right()) :
+ − 2456 listRect.setLeft(screen.left());
+ − 2457 }
+ − 2458 #endif
0
+ − 2459 } else if (!boundToScreen || listRect.height() <= belowHeight) {
+ − 2460 listRect.moveTopLeft(below);
+ − 2461 } else if (listRect.height() <= aboveHeight) {
+ − 2462 listRect.moveBottomLeft(above);
+ − 2463 } else if (belowHeight >= aboveHeight) {
+ − 2464 listRect.setHeight(belowHeight);
+ − 2465 listRect.moveTopLeft(below);
+ − 2466 } else {
+ − 2467 listRect.setHeight(aboveHeight);
+ − 2468 listRect.moveBottomLeft(above);
+ − 2469 }
+ − 2470
+ − 2471 #ifndef QT_NO_IM
+ − 2472 if (QInputContext *qic = inputContext())
+ − 2473 qic->reset();
+ − 2474 #endif
+ − 2475 QScrollBar *sb = view()->horizontalScrollBar();
+ − 2476 Qt::ScrollBarPolicy policy = view()->horizontalScrollBarPolicy();
+ − 2477 bool needHorizontalScrollBar = (policy == Qt::ScrollBarAsNeeded || policy == Qt::ScrollBarAlwaysOn)
+ − 2478 && sb->minimum() < sb->maximum();
+ − 2479 if (needHorizontalScrollBar) {
+ − 2480 listRect.adjust(0, 0, 0, sb->height());
+ − 2481 }
+ − 2482 container->setGeometry(listRect);
+ − 2483
+ − 2484 #ifndef Q_WS_MAC
+ − 2485 const bool updatesEnabled = container->updatesEnabled();
+ − 2486 #endif
+ − 2487
+ − 2488 #if defined(Q_WS_WIN) && !defined(QT_NO_EFFECTS)
+ − 2489 bool scrollDown = (listRect.topLeft() == below);
3
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
diff
changeset
+ − 2490 if (QApplication::isEffectEnabled(Qt::UI_AnimateCombo)
0
+ − 2491 && !style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this) && !window()->testAttribute(Qt::WA_DontShowOnScreen))
+ − 2492 qScrollEffect(container, scrollDown ? QEffects::DownScroll : QEffects::UpScroll, 150);
+ − 2493 #endif
+ − 2494
+ − 2495 // Don't disable updates on Mac OS X. Windows are displayed immediately on this platform,
+ − 2496 // 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
+ − 2497 // 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
+ − 2498 // menu before it's shown, causing flicker since the window then displays the standard gray
0
+ − 2499 // background.
+ − 2500 #ifndef Q_WS_MAC
+ − 2501 container->setUpdatesEnabled(false);
+ − 2502 #endif
+ − 2503
+ − 2504 container->raise();
+ − 2505 container->show();
+ − 2506 container->updateScrollers();
+ − 2507 view()->setFocus();
+ − 2508
+ − 2509 view()->scrollTo(view()->currentIndex(),
+ − 2510 style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)
+ − 2511 ? QAbstractItemView::PositionAtCenter
+ − 2512 : QAbstractItemView::EnsureVisible);
+ − 2513
+ − 2514 #ifndef Q_WS_MAC
+ − 2515 container->setUpdatesEnabled(updatesEnabled);
+ − 2516 #endif
+ − 2517
+ − 2518 container->update();
+ − 2519 #ifdef QT_KEYPAD_NAVIGATION
+ − 2520 if (QApplication::keypadNavigationEnabled())
+ − 2521 view()->setEditFocus(true);
+ − 2522 #endif
+ − 2523 }
+ − 2524
+ − 2525 /*!
+ − 2526 Hides the list of items in the combobox if it is currently visible
+ − 2527 and resets the internal state, so that if the custom pop-up was
+ − 2528 shown inside the reimplemented showPopup(), then you also need to
+ − 2529 reimplement the hidePopup() function to hide your custom pop-up
+ − 2530 and call the base class implementation to reset the internal state
+ − 2531 whenever your custom pop-up widget is hidden.
+ − 2532
+ − 2533 \sa showPopup()
+ − 2534 */
+ − 2535 void QComboBox::hidePopup()
+ − 2536 {
+ − 2537 Q_D(QComboBox);
+ − 2538 if (d->container && d->container->isVisible()) {
+ − 2539 #if !defined(QT_NO_EFFECTS)
+ − 2540 d->model->blockSignals(true);
+ − 2541 d->container->itemView()->blockSignals(true);
+ − 2542 d->container->blockSignals(true);
+ − 2543 // Flash selected/triggered item (if any).
+ − 2544 if (style()->styleHint(QStyle::SH_Menu_FlashTriggeredItem)) {
+ − 2545 QItemSelectionModel *selectionModel = view() ? view()->selectionModel() : 0;
+ − 2546 if (selectionModel && selectionModel->hasSelection()) {
+ − 2547 QEventLoop eventLoop;
+ − 2548 const QItemSelection selection = selectionModel->selection();
+ − 2549
+ − 2550 // Deselect item and wait 60 ms.
+ − 2551 selectionModel->select(selection, QItemSelectionModel::Toggle);
+ − 2552 QTimer::singleShot(60, &eventLoop, SLOT(quit()));
+ − 2553 eventLoop.exec();
+ − 2554
+ − 2555 // Select item and wait 20 ms.
+ − 2556 selectionModel->select(selection, QItemSelectionModel::Toggle);
+ − 2557 QTimer::singleShot(20, &eventLoop, SLOT(quit()));
+ − 2558 eventLoop.exec();
+ − 2559 }
+ − 2560 }
+ − 2561
+ − 2562 // Fade out.
+ − 2563 bool needFade = style()->styleHint(QStyle::SH_Menu_FadeOutOnHide);
+ − 2564 if (needFade) {
+ − 2565 #if defined(Q_WS_MAC)
+ − 2566 macWindowFade(qt_mac_window_for(d->container));
+ − 2567 #endif // Q_WS_MAC
+ − 2568 // Other platform implementations welcome :-)
+ − 2569 }
+ − 2570 d->model->blockSignals(false);
+ − 2571 d->container->itemView()->blockSignals(false);
+ − 2572 d->container->blockSignals(false);
+ − 2573
+ − 2574 if (!needFade)
+ − 2575 #endif // QT_NO_EFFECTS
+ − 2576 // Fade should implicitly hide as well ;-)
+ − 2577 d->container->hide();
+ − 2578 }
+ − 2579 #ifdef QT_KEYPAD_NAVIGATION
+ − 2580 if (QApplication::keypadNavigationEnabled() && isEditable() && hasFocus())
+ − 2581 setEditFocus(true);
+ − 2582 #endif
+ − 2583 d->_q_resetButton();
+ − 2584 }
+ − 2585
+ − 2586 /*!
+ − 2587 Clears the combobox, removing all items.
+ − 2588
+ − 2589 Note: If you have set an external model on the combobox this model
+ − 2590 will still be cleared when calling this function.
+ − 2591 */
+ − 2592 void QComboBox::clear()
+ − 2593 {
+ − 2594 Q_D(QComboBox);
+ − 2595 d->model->removeRows(0, d->model->rowCount(d->root), d->root);
+ − 2596 }
+ − 2597
+ − 2598 /*!
+ − 2599 \fn void QComboBox::clearValidator()
+ − 2600
+ − 2601 Use setValidator(0) instead.
+ − 2602 */
+ − 2603
+ − 2604 /*!
+ − 2605 Clears the contents of the line edit used for editing in the combobox.
+ − 2606 */
+ − 2607 void QComboBox::clearEditText()
+ − 2608 {
+ − 2609 Q_D(QComboBox);
+ − 2610 if (d->lineEdit)
+ − 2611 d->lineEdit->clear();
+ − 2612 }
+ − 2613
+ − 2614 /*!
+ − 2615 Sets the \a text in the combobox's text edit.
+ − 2616 */
+ − 2617 void QComboBox::setEditText(const QString &text)
+ − 2618 {
+ − 2619 Q_D(QComboBox);
+ − 2620 if (d->lineEdit)
+ − 2621 d->lineEdit->setText(text);
+ − 2622 }
+ − 2623
+ − 2624 /*!
+ − 2625 \reimp
+ − 2626 */
+ − 2627 void QComboBox::focusInEvent(QFocusEvent *e)
+ − 2628 {
+ − 2629 Q_D(QComboBox);
+ − 2630 update();
+ − 2631 if (d->lineEdit) {
+ − 2632 d->lineEdit->event(e);
+ − 2633 #ifndef QT_NO_COMPLETER
+ − 2634 if (d->lineEdit->completer())
+ − 2635 d->lineEdit->completer()->setWidget(this);
+ − 2636 #endif
+ − 2637 }
+ − 2638 }
+ − 2639
+ − 2640 /*!
+ − 2641 \reimp
+ − 2642 */
+ − 2643 void QComboBox::focusOutEvent(QFocusEvent *e)
+ − 2644 {
+ − 2645 Q_D(QComboBox);
+ − 2646 update();
+ − 2647 if (d->lineEdit)
+ − 2648 d->lineEdit->event(e);
+ − 2649 }
+ − 2650
+ − 2651 /*! \reimp */
+ − 2652 void QComboBox::changeEvent(QEvent *e)
+ − 2653 {
+ − 2654 Q_D(QComboBox);
+ − 2655 switch (e->type()) {
+ − 2656 case QEvent::StyleChange:
+ − 2657 d->updateDelegate();
+ − 2658 #ifdef Q_WS_MAC
+ − 2659 case QEvent::MacSizeChange:
+ − 2660 #endif
+ − 2661 d->sizeHint = QSize(); // invalidate size hint
+ − 2662 d->minimumSizeHint = QSize();
+ − 2663 d->updateLayoutDirection();
+ − 2664 if (d->lineEdit)
+ − 2665 d->updateLineEditGeometry();
+ − 2666 d->setLayoutItemMargins(QStyle::SE_ComboBoxLayoutItem);
7
+ − 2667
+ − 2668 #ifdef Q_WS_S60
+ − 2669 if (d->container) {
+ − 2670 QStyleOptionComboBox opt;
+ − 2671 initStyleOption(&opt);
+ − 2672
+ − 2673 if (style()->styleHint(QStyle::SH_ComboBox_Popup, &opt, this)) {
+ − 2674 const QRect screen = d->popupGeometry(QApplication::desktop()->screenNumber(this));
+ − 2675
+ − 2676 QRect listRect(style()->subControlRect(QStyle::CC_ComboBox, &opt,
+ − 2677 QStyle::SC_ComboBoxListBoxPopup, this));
+ − 2678 listRect.setHeight(qMin(screen.height(), screen.width()));
+ − 2679
+ − 2680 if (screen.width() < screen.height()) {
+ − 2681 // in portait, menu should be positioned above softkeys
+ − 2682 listRect.moveBottom(screen.bottom());
+ − 2683 } else {
+ − 2684 // landscape, menu should be at the right and horizontally centered
+ − 2685 listRect.setWidth(listRect.height());
+ − 2686 listRect.moveCenter(screen.center());
+ − 2687 (opt.direction == Qt::LeftToRight) ? listRect.setRight(screen.right()) :
+ − 2688 listRect.setLeft(screen.left());
+ − 2689 }
+ − 2690 d->container->setGeometry(listRect);
+ − 2691 }
+ − 2692 }
+ − 2693 #endif
+ − 2694
0
+ − 2695 // ### need to update scrollers etc. as well here
+ − 2696 break;
+ − 2697 case QEvent::EnabledChange:
+ − 2698 if (!isEnabled())
+ − 2699 hidePopup();
+ − 2700 break;
+ − 2701 case QEvent::PaletteChange: {
+ − 2702 d->updateViewContainerPaletteAndOpacity();
+ − 2703 break;
+ − 2704 }
+ − 2705 case QEvent::FontChange:
+ − 2706 d->sizeHint = QSize(); // invalidate size hint
+ − 2707 d->viewContainer()->setFont(font());
+ − 2708 if (d->lineEdit)
+ − 2709 d->updateLineEditGeometry();
+ − 2710 break;
+ − 2711 default:
+ − 2712 break;
+ − 2713 }
+ − 2714 QWidget::changeEvent(e);
+ − 2715 }
+ − 2716
+ − 2717 /*!
+ − 2718 \reimp
+ − 2719 */
+ − 2720 void QComboBox::resizeEvent(QResizeEvent *)
+ − 2721 {
+ − 2722 Q_D(QComboBox);
+ − 2723 d->updateLineEditGeometry();
+ − 2724 }
+ − 2725
+ − 2726 /*!
+ − 2727 \reimp
+ − 2728 */
+ − 2729 void QComboBox::paintEvent(QPaintEvent *)
+ − 2730 {
+ − 2731 QStylePainter painter(this);
+ − 2732 painter.setPen(palette().color(QPalette::Text));
+ − 2733
+ − 2734 // draw the combobox frame, focusrect and selected etc.
+ − 2735 QStyleOptionComboBox opt;
+ − 2736 initStyleOption(&opt);
+ − 2737 painter.drawComplexControl(QStyle::CC_ComboBox, opt);
+ − 2738
+ − 2739 // draw the icon and text
+ − 2740 painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
+ − 2741 }
+ − 2742
+ − 2743 /*!
+ − 2744 \reimp
+ − 2745 */
+ − 2746 void QComboBox::showEvent(QShowEvent *e)
+ − 2747 {
+ − 2748 Q_D(QComboBox);
+ − 2749 if (!d->shownOnce && d->sizeAdjustPolicy == QComboBox::AdjustToContentsOnFirstShow) {
+ − 2750 d->sizeHint = QSize();
+ − 2751 updateGeometry();
+ − 2752 }
+ − 2753 d->shownOnce = true;
+ − 2754 QWidget::showEvent(e);
+ − 2755 }
+ − 2756
+ − 2757 /*!
+ − 2758 \reimp
+ − 2759 */
+ − 2760 void QComboBox::hideEvent(QHideEvent *)
+ − 2761 {
+ − 2762 hidePopup();
+ − 2763 }
+ − 2764
+ − 2765 /*!
+ − 2766 \reimp
+ − 2767 */
+ − 2768 bool QComboBox::event(QEvent *event)
+ − 2769 {
+ − 2770 Q_D(QComboBox);
+ − 2771 switch(event->type()) {
+ − 2772 case QEvent::LayoutDirectionChange:
+ − 2773 case QEvent::ApplicationLayoutDirectionChange:
+ − 2774 d->updateLayoutDirection();
+ − 2775 d->updateLineEditGeometry();
+ − 2776 break;
+ − 2777 case QEvent::HoverEnter:
+ − 2778 case QEvent::HoverLeave:
+ − 2779 case QEvent::HoverMove:
+ − 2780 if (const QHoverEvent *he = static_cast<const QHoverEvent *>(event))
+ − 2781 d->updateHoverControl(he->pos());
+ − 2782 break;
+ − 2783 case QEvent::ShortcutOverride:
+ − 2784 if (d->lineEdit)
+ − 2785 return d->lineEdit->event(event);
+ − 2786 break;
+ − 2787 #ifdef QT_KEYPAD_NAVIGATION
+ − 2788 case QEvent::EnterEditFocus:
+ − 2789 if (!d->lineEdit)
+ − 2790 setEditFocus(false); // We never want edit focus if we are not editable
+ − 2791 else
+ − 2792 d->lineEdit->event(event); //so cursor starts
+ − 2793 break;
+ − 2794 case QEvent::LeaveEditFocus:
+ − 2795 if (d->lineEdit)
+ − 2796 d->lineEdit->event(event); //so cursor stops
+ − 2797 break;
+ − 2798 #endif
+ − 2799 default:
+ − 2800 break;
+ − 2801 }
+ − 2802 return QWidget::event(event);
+ − 2803 }
+ − 2804
+ − 2805 /*!
+ − 2806 \reimp
+ − 2807 */
+ − 2808 void QComboBox::mousePressEvent(QMouseEvent *e)
+ − 2809 {
+ − 2810 Q_D(QComboBox);
+ − 2811 QStyleOptionComboBox opt;
+ − 2812 initStyleOption(&opt);
+ − 2813 QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt, e->pos(),
+ − 2814 this);
+ − 2815 if (e->button() == Qt::LeftButton && (sc == QStyle::SC_ComboBoxArrow || !isEditable())
+ − 2816 && !d->viewContainer()->isVisible()) {
+ − 2817 if (sc == QStyle::SC_ComboBoxArrow)
+ − 2818 d->updateArrow(QStyle::State_Sunken);
+ − 2819 #ifdef QT_KEYPAD_NAVIGATION
+ − 2820 if (!d->lineEdit) {
+ − 2821 #endif
+ − 2822 // We've restricted the next couple of lines, because by not calling
+ − 2823 // viewContainer(), we avoid creating the QComboBoxPrivateContainer.
+ − 2824 d->viewContainer()->blockMouseReleaseTimer.start(QApplication::doubleClickInterval());
+ − 2825 d->viewContainer()->initialClickPosition = mapToGlobal(e->pos());
+ − 2826 #ifdef QT_KEYPAD_NAVIGATION
+ − 2827 }
+ − 2828 #endif
+ − 2829 showPopup();
+ − 2830 } else {
+ − 2831 #ifdef QT_KEYPAD_NAVIGATION
+ − 2832 if (QApplication::keypadNavigationEnabled() && sc == QStyle::SC_ComboBoxEditField && d->lineEdit) {
+ − 2833 d->lineEdit->event(e); //so lineedit can move cursor, etc
+ − 2834 return;
+ − 2835 }
+ − 2836 #endif
+ − 2837 QWidget::mousePressEvent(e);
+ − 2838 }
+ − 2839 }
+ − 2840
+ − 2841 /*!
+ − 2842 \reimp
+ − 2843 */
+ − 2844 void QComboBox::mouseReleaseEvent(QMouseEvent *e)
+ − 2845 {
+ − 2846 Q_D(QComboBox);
+ − 2847 Q_UNUSED(e);
+ − 2848 d->updateArrow(QStyle::State_None);
+ − 2849 }
+ − 2850
+ − 2851 /*!
+ − 2852 \reimp
+ − 2853 */
+ − 2854 void QComboBox::keyPressEvent(QKeyEvent *e)
+ − 2855 {
+ − 2856 Q_D(QComboBox);
+ − 2857
+ − 2858 #ifndef QT_NO_COMPLETER
+ − 2859 if (d->lineEdit
+ − 2860 && d->lineEdit->completer()
+ − 2861 && d->lineEdit->completer()->popup()
+ − 2862 && d->lineEdit->completer()->popup()->isVisible()) {
+ − 2863 // provide same autocompletion support as line edit
+ − 2864 d->lineEdit->event(e);
+ − 2865 return;
+ − 2866 }
+ − 2867 #endif
+ − 2868
+ − 2869 enum Move { NoMove=0 , MoveUp , MoveDown , MoveFirst , MoveLast};
+ − 2870
+ − 2871 Move move = NoMove;
+ − 2872 int newIndex = currentIndex();
+ − 2873 switch (e->key()) {
+ − 2874 case Qt::Key_Up:
+ − 2875 if (e->modifiers() & Qt::ControlModifier)
+ − 2876 break; // pass to line edit for auto completion
+ − 2877 case Qt::Key_PageUp:
+ − 2878 #ifdef QT_KEYPAD_NAVIGATION
+ − 2879 if (QApplication::keypadNavigationEnabled())
+ − 2880 e->ignore();
+ − 2881 else
+ − 2882 #endif
+ − 2883 move = MoveUp;
+ − 2884 break;
+ − 2885 case Qt::Key_Down:
+ − 2886 if (e->modifiers() & Qt::AltModifier) {
+ − 2887 showPopup();
+ − 2888 return;
+ − 2889 } else if (e->modifiers() & Qt::ControlModifier)
+ − 2890 break; // pass to line edit for auto completion
+ − 2891 // fall through
+ − 2892 case Qt::Key_PageDown:
+ − 2893 #ifdef QT_KEYPAD_NAVIGATION
+ − 2894 if (QApplication::keypadNavigationEnabled())
+ − 2895 e->ignore();
+ − 2896 else
+ − 2897 #endif
+ − 2898 move = MoveDown;
+ − 2899 break;
+ − 2900 case Qt::Key_Home:
+ − 2901 if (!d->lineEdit)
+ − 2902 move = MoveFirst;
+ − 2903 break;
+ − 2904 case Qt::Key_End:
+ − 2905 if (!d->lineEdit)
+ − 2906 move = MoveLast;
+ − 2907 break;
+ − 2908 case Qt::Key_F4:
+ − 2909 if (!e->modifiers()) {
+ − 2910 showPopup();
+ − 2911 return;
+ − 2912 }
+ − 2913 break;
+ − 2914 case Qt::Key_Space:
+ − 2915 if (!d->lineEdit) {
+ − 2916 showPopup();
+ − 2917 return;
+ − 2918 }
+ − 2919 case Qt::Key_Enter:
+ − 2920 case Qt::Key_Return:
+ − 2921 case Qt::Key_Escape:
+ − 2922 if (!d->lineEdit)
+ − 2923 e->ignore();
+ − 2924 break;
+ − 2925 #ifdef QT_KEYPAD_NAVIGATION
+ − 2926 case Qt::Key_Select:
+ − 2927 if (QApplication::keypadNavigationEnabled()
+ − 2928 && (!hasEditFocus() || !d->lineEdit)) {
+ − 2929 showPopup();
+ − 2930 return;
+ − 2931 }
+ − 2932 break;
+ − 2933 case Qt::Key_Left:
+ − 2934 case Qt::Key_Right:
+ − 2935 if (QApplication::keypadNavigationEnabled() && !hasEditFocus())
+ − 2936 e->ignore();
+ − 2937 break;
+ − 2938 case Qt::Key_Back:
+ − 2939 if (QApplication::keypadNavigationEnabled()) {
+ − 2940 if (!hasEditFocus() || !d->lineEdit)
+ − 2941 e->ignore();
+ − 2942 } else {
+ − 2943 e->ignore(); // let the surounding dialog have it
+ − 2944 }
+ − 2945 break;
+ − 2946 #endif
+ − 2947 default:
+ − 2948 if (!d->lineEdit) {
+ − 2949 if (!e->text().isEmpty())
+ − 2950 d->keyboardSearchString(e->text());
+ − 2951 else
+ − 2952 e->ignore();
+ − 2953 }
+ − 2954 }
+ − 2955
+ − 2956 if (move != NoMove) {
+ − 2957 e->accept();
+ − 2958 switch (move) {
+ − 2959 case MoveFirst:
+ − 2960 newIndex = -1;
+ − 2961 case MoveDown:
+ − 2962 newIndex++;
+ − 2963 while ((newIndex < count()) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2964 newIndex++;
+ − 2965 break;
+ − 2966 case MoveLast:
+ − 2967 newIndex = count();
+ − 2968 case MoveUp:
+ − 2969 newIndex--;
+ − 2970 while ((newIndex >= 0) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 2971 newIndex--;
+ − 2972 break;
+ − 2973 default:
+ − 2974 e->ignore();
+ − 2975 break;
+ − 2976 }
+ − 2977
+ − 2978 if (newIndex >= 0 && newIndex < count() && newIndex != currentIndex()) {
+ − 2979 setCurrentIndex(newIndex);
+ − 2980 d->emitActivated(d->currentIndex);
+ − 2981 }
+ − 2982 } else if (d->lineEdit) {
+ − 2983 d->lineEdit->event(e);
+ − 2984 }
+ − 2985 }
+ − 2986
+ − 2987
+ − 2988 /*!
+ − 2989 \reimp
+ − 2990 */
+ − 2991 void QComboBox::keyReleaseEvent(QKeyEvent *e)
+ − 2992 {
+ − 2993 Q_D(QComboBox);
+ − 2994 if (d->lineEdit)
+ − 2995 d->lineEdit->event(e);
+ − 2996 }
+ − 2997
+ − 2998 /*!
+ − 2999 \reimp
+ − 3000 */
+ − 3001 #ifndef QT_NO_WHEELEVENT
+ − 3002 void QComboBox::wheelEvent(QWheelEvent *e)
+ − 3003 {
+ − 3004 Q_D(QComboBox);
+ − 3005 if (!d->viewContainer()->isVisible()) {
+ − 3006 int newIndex = currentIndex();
+ − 3007
+ − 3008 if (e->delta() > 0) {
+ − 3009 newIndex--;
+ − 3010 while ((newIndex >= 0) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 3011 newIndex--;
+ − 3012 } else {
+ − 3013 newIndex++;
+ − 3014 while ((newIndex < count()) && !(d->model->flags(d->model->index(newIndex,d->modelColumn,d->root)) & Qt::ItemIsEnabled))
+ − 3015 newIndex++;
+ − 3016 }
+ − 3017
+ − 3018 if (newIndex >= 0 && newIndex < count() && newIndex != currentIndex()) {
+ − 3019 setCurrentIndex(newIndex);
+ − 3020 d->emitActivated(d->currentIndex);
+ − 3021 }
+ − 3022 e->accept();
+ − 3023 }
+ − 3024 }
+ − 3025 #endif
+ − 3026
+ − 3027 #ifndef QT_NO_CONTEXTMENU
+ − 3028 /*!
+ − 3029 \reimp
+ − 3030 */
+ − 3031 void QComboBox::contextMenuEvent(QContextMenuEvent *e)
+ − 3032 {
+ − 3033 Q_D(QComboBox);
+ − 3034 if (d->lineEdit) {
+ − 3035 Qt::ContextMenuPolicy p = d->lineEdit->contextMenuPolicy();
+ − 3036 d->lineEdit->setContextMenuPolicy(Qt::DefaultContextMenu);
+ − 3037 d->lineEdit->event(e);
+ − 3038 d->lineEdit->setContextMenuPolicy(p);
+ − 3039 }
+ − 3040 }
+ − 3041 #endif // QT_NO_CONTEXTMENU
+ − 3042
+ − 3043 void QComboBoxPrivate::keyboardSearchString(const QString &text)
+ − 3044 {
+ − 3045 // use keyboardSearch from the listView so we do not duplicate code
+ − 3046 QAbstractItemView *view = viewContainer()->itemView();
+ − 3047 view->setCurrentIndex(currentIndex);
+ − 3048 int currentRow = view->currentIndex().row();
+ − 3049 view->keyboardSearch(text);
+ − 3050 if (currentRow != view->currentIndex().row()) {
+ − 3051 setCurrentIndex(view->currentIndex());
+ − 3052 emitActivated(currentIndex);
+ − 3053 }
+ − 3054 }
+ − 3055
+ − 3056 void QComboBoxPrivate::modelChanged()
+ − 3057 {
+ − 3058 Q_Q(QComboBox);
+ − 3059
+ − 3060 if (sizeAdjustPolicy == QComboBox::AdjustToContents) {
+ − 3061 sizeHint = QSize();
+ − 3062 adjustComboBoxSize();
+ − 3063 q->updateGeometry();
+ − 3064 }
+ − 3065 }
+ − 3066
+ − 3067 /*!
+ − 3068 \reimp
+ − 3069 */
+ − 3070 void QComboBox::inputMethodEvent(QInputMethodEvent *e)
+ − 3071 {
+ − 3072 Q_D(QComboBox);
+ − 3073 if (d->lineEdit) {
+ − 3074 d->lineEdit->event(e);
+ − 3075 } else {
+ − 3076 if (!e->commitString().isEmpty())
+ − 3077 d->keyboardSearchString(e->commitString());
+ − 3078 else
+ − 3079 e->ignore();
+ − 3080 }
+ − 3081 }
+ − 3082
+ − 3083 /*!
+ − 3084 \reimp
+ − 3085 */
+ − 3086 QVariant QComboBox::inputMethodQuery(Qt::InputMethodQuery query) const
+ − 3087 {
+ − 3088 Q_D(const QComboBox);
+ − 3089 if (d->lineEdit)
+ − 3090 return d->lineEdit->inputMethodQuery(query);
+ − 3091 return QWidget::inputMethodQuery(query);
+ − 3092 }
+ − 3093
+ − 3094 /*!
+ − 3095 \fn bool QComboBox::editable() const
+ − 3096
+ − 3097 Use isEditable() instead.
+ − 3098 */
+ − 3099
+ − 3100 /*!
+ − 3101 \fn void QComboBox::insertItem(const QPixmap &pixmap, int index)
+ − 3102
+ − 3103 Use an insertItem() function that takes a QIcon instead, for
+ − 3104 example, insertItem(index, QIcon(pixmap)).
+ − 3105 */
+ − 3106
+ − 3107 /*!
+ − 3108 \fn void QComboBox::insertItem(const QPixmap &pixmap, const QString &text, int index)
+ − 3109
+ − 3110 Use an insertItem() function that takes a QIcon instead, for
+ − 3111 example, insertItem(index, QIcon(pixmap), text).
+ − 3112
+ − 3113 \sa insertItems()
+ − 3114 */
+ − 3115
+ − 3116 /*!
+ − 3117 \fn void QComboBox::changeItem(const QString &text, int index)
+ − 3118
+ − 3119 Use setItemText() instead.
+ − 3120 */
+ − 3121
+ − 3122 /*!
+ − 3123 \fn void QComboBox::changeItem(const QPixmap &pixmap, int index)
+ − 3124
+ − 3125 Use setItemIcon() instead, for example,
+ − 3126 setItemIcon(index, QIcon(pixmap)).
+ − 3127 */
+ − 3128
+ − 3129 /*!
+ − 3130 \fn void QComboBox::changeItem(const QPixmap &pixmap, const QString &text, int index)
+ − 3131
+ − 3132 Use setItem() instead, for example, setItem(index, QIcon(pixmap),text).
+ − 3133 */
+ − 3134
+ − 3135 /*!
+ − 3136 \fn void QComboBox::addItem(const QString &text, const QVariant &userData)
+ − 3137
+ − 3138 Adds an item to the combobox with the given \a text, and
+ − 3139 containing the specified \a userData (stored in the Qt::UserRole).
+ − 3140 The item is appended to the list of existing items.
+ − 3141 */
+ − 3142
+ − 3143 /*!
+ − 3144 \fn void QComboBox::addItem(const QIcon &icon, const QString &text,
+ − 3145 const QVariant &userData)
+ − 3146
+ − 3147 Adds an item to the combobox with the given \a icon and \a text,
+ − 3148 and containing the specified \a userData (stored in the
+ − 3149 Qt::UserRole). The item is appended to the list of existing items.
+ − 3150 */
+ − 3151
+ − 3152 /*!
+ − 3153 \fn void QComboBox::addItems(const QStringList &texts)
+ − 3154
+ − 3155 Adds each of the strings in the given \a texts to the combobox. Each item
+ − 3156 is appended to the list of existing items in turn.
+ − 3157 */
+ − 3158
+ − 3159 /*!
+ − 3160 \fn void QComboBox::editTextChanged(const QString &text)
+ − 3161
+ − 3162 This signal is emitted when the text in the combobox's line edit
+ − 3163 widget is changed. The new text is specified by \a text.
+ − 3164 */
+ − 3165
+ − 3166 /*!
+ − 3167 \fn QComboBox::InsertPolicy QComboBox::insertionPolicy() const
+ − 3168 \compat
+ − 3169
+ − 3170 Use QComboBox::insertPolicy instead.
+ − 3171 */
+ − 3172
+ − 3173 /*!
+ − 3174 \fn void QComboBox::setInsertionPolicy(InsertPolicy policy)
+ − 3175 \compat
+ − 3176
+ − 3177 Use QComboBox::insertPolicy instead.
+ − 3178 */
+ − 3179
+ − 3180 /*!
+ − 3181 \fn void QComboBox::setCurrentText(const QString &text)
+ − 3182 \compat
+ − 3183
+ − 3184 Use setItemText() instead.
+ − 3185
+ − 3186 \sa currentIndex()
+ − 3187 */
+ − 3188
+ − 3189 /*!
+ − 3190 \fn QString QComboBox::text(int index) const
+ − 3191 \compat
+ − 3192
+ − 3193 Use itemText() instead.
+ − 3194 */
+ − 3195
+ − 3196 /*!
+ − 3197 \fn QPixmap QComboBox::pixmap(int index) const
+ − 3198 \compat
+ − 3199
+ − 3200 Use itemIcon() instead.
+ − 3201 */
+ − 3202
+ − 3203 /*!
+ − 3204 \fn void QComboBox::insertStringList(const QStringList &list, int index)
+ − 3205 \compat
+ − 3206
+ − 3207 Use insertItems() instead.
+ − 3208 */
+ − 3209
+ − 3210 /*!
+ − 3211 \fn void QComboBox::insertItem(const QString &text, int index)
+ − 3212 \compat
+ − 3213 */
+ − 3214
+ − 3215 /*!
+ − 3216 \fn void QComboBox::clearEdit()
+ − 3217 \compat
+ − 3218
+ − 3219 Use clearEditText() instead.
+ − 3220 */
+ − 3221
+ − 3222
+ − 3223 /*!
+ − 3224 \property QComboBox::frame
+ − 3225 \brief whether the combo box draws itself with a frame
+ − 3226
+ − 3227
+ − 3228 If enabled (the default) the combo box draws itself inside a
+ − 3229 frame, otherwise the combo box draws itself without any frame.
+ − 3230 */
+ − 3231 bool QComboBox::hasFrame() const
+ − 3232 {
+ − 3233 Q_D(const QComboBox);
+ − 3234 return d->frame;
+ − 3235 }
+ − 3236
+ − 3237
+ − 3238 void QComboBox::setFrame(bool enable)
+ − 3239 {
+ − 3240 Q_D(QComboBox);
+ − 3241 d->frame = enable;
+ − 3242 update();
+ − 3243 updateGeometry();
+ − 3244 }
+ − 3245
+ − 3246 /*!
+ − 3247 \property QComboBox::modelColumn
+ − 3248 \brief the column in the model that is visible.
+ − 3249
+ − 3250 If set prior to populating the combo box, the pop-up view will
+ − 3251 not be affected and will show the first column (using this property's
+ − 3252 default value).
+ − 3253
+ − 3254 By default, this property has a value of 0.
+ − 3255 */
+ − 3256 int QComboBox::modelColumn() const
+ − 3257 {
+ − 3258 Q_D(const QComboBox);
+ − 3259 return d->modelColumn;
+ − 3260 }
+ − 3261
+ − 3262 void QComboBox::setModelColumn(int visibleColumn)
+ − 3263 {
+ − 3264 Q_D(QComboBox);
+ − 3265 d->modelColumn = visibleColumn;
+ − 3266 QListView *lv = qobject_cast<QListView *>(d->viewContainer()->itemView());
+ − 3267 if (lv)
+ − 3268 lv->setModelColumn(visibleColumn);
+ − 3269 #ifndef QT_NO_COMPLETER
+ − 3270 if (d->lineEdit && d->lineEdit->completer()
+ − 3271 && d->lineEdit->completer() == d->completer)
+ − 3272 d->lineEdit->completer()->setCompletionColumn(visibleColumn);
+ − 3273 #endif
+ − 3274 setCurrentIndex(currentIndex()); //update the text to the text of the new column;
+ − 3275 }
+ − 3276
+ − 3277 /*!
+ − 3278 \fn int QComboBox::currentItem() const
+ − 3279
+ − 3280 Use currentIndex() instead.
+ − 3281 */
+ − 3282
+ − 3283 /*!
+ − 3284 \fn void QComboBox::setCurrentItem(int)
+ − 3285
+ − 3286 Use setCurrentIndex(int) instead.
+ − 3287 */
+ − 3288
+ − 3289 /*!
+ − 3290 \fn void QComboBox::popup()
+ − 3291
+ − 3292 Use showPopup() instead.
+ − 3293 */
+ − 3294
+ − 3295 /*!
+ − 3296 \fn void QComboBox::textChanged(const QString &text)
+ − 3297
+ − 3298 Use the editTextChanged(const QString &text) signal instead.
+ − 3299 */
+ − 3300
+ − 3301 /*!
+ − 3302 \typedef QComboBox::Policy
+ − 3303 \compat
+ − 3304
+ − 3305 Use QComboBox::InsertPolicy instead.
+ − 3306 */
+ − 3307
+ − 3308 QT_END_NAMESPACE
+ − 3309
+ − 3310 #include "moc_qcombobox.cpp"
+ − 3311
+ − 3312 #endif // QT_NO_COMBOBOX