573 lines
21 KiB
C++
573 lines
21 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qdesigner_tabwidget_p.h"
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#include "qdesigner_command_p.h"
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#include "qdesigner_propertycommand_p.h"
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#include "promotiontaskmenu_p.h"
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#include "formwindowbase_p.h"
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#include <QtDesigner/QDesignerFormWindowInterface>
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#include <QtGui/QApplication>
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#include <QtGui/QTabBar>
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#include <QtGui/QAction>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QMenu>
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#include <QtGui/QLabel>
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#include <QtGui/QTabWidget>
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#include <QtCore/qdebug.h>
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QT_BEGIN_NAMESPACE
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namespace qdesigner_internal {
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// Store tab widget as drag source
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class MyMimeData : public QMimeData
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{
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Q_OBJECT
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public:
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MyMimeData(const QTabWidget *tab) : m_tab(tab) {}
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static bool fromMyTab(const QMimeData *mimeData, const QTabWidget *tab) {
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if (!mimeData)
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return false;
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const MyMimeData *m = qobject_cast<const MyMimeData *>(mimeData);
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return m && m->m_tab == tab;
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}
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private:
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const QTabWidget *m_tab;
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};
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} // namespace qdesigner_internal
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// ------------- QTabWidgetEventFilter
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QTabWidgetEventFilter::QTabWidgetEventFilter(QTabWidget *parent) :
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QObject(parent),
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m_tabWidget(parent),
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m_dropIndicator(0),
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m_dragPage(0),
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m_mousePressed(false),
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m_actionDeletePage(new QAction(tr("Delete"), this)),
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m_actionInsertPage(new QAction(tr("Before Current Page"), this)),
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m_actionInsertPageAfter(new QAction(tr("After Current Page"), this)),
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m_pagePromotionTaskMenu(new qdesigner_internal::PromotionTaskMenu(0, qdesigner_internal::PromotionTaskMenu::ModeSingleWidget, this))
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{
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tabBar()->setAcceptDrops(true);
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tabBar()->installEventFilter(this);
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connect(m_actionInsertPage, SIGNAL(triggered()), this, SLOT(addPage()));
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connect(m_actionInsertPageAfter, SIGNAL(triggered()), this, SLOT(addPageAfter()));
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connect(m_actionDeletePage, SIGNAL(triggered()), this, SLOT(removeCurrentPage()));
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}
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QTabWidgetEventFilter::~QTabWidgetEventFilter()
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{
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}
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void QTabWidgetEventFilter::install(QTabWidget *tabWidget)
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{
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new QTabWidgetEventFilter(tabWidget);
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}
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QTabWidgetEventFilter *QTabWidgetEventFilter::eventFilterOf(const QTabWidget *tabWidget)
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{
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// Look for 1st order children only..otherwise, we might get filters of nested tab widgets
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const QObjectList children = tabWidget->children();
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const QObjectList::const_iterator cend = children.constEnd();
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for (QObjectList::const_iterator it = children.constBegin(); it != cend; ++it) {
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QObject *o = *it;
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if (!o->isWidgetType())
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if (QTabWidgetEventFilter *ef = qobject_cast<QTabWidgetEventFilter*>(o))
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return ef;
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}
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return 0;
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}
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QMenu *QTabWidgetEventFilter::addTabWidgetContextMenuActions(const QTabWidget *tabWidget, QMenu *popup)
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{
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QTabWidgetEventFilter *filter = eventFilterOf(tabWidget);
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if (!filter)
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return 0;
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return filter->addContextMenuActions(popup);
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}
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QTabBar *QTabWidgetEventFilter::tabBar() const
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{
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// QTabWidget::tabBar() accessor is protected, grmbl...
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if (!m_cachedTabBar) {
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const QList<QTabBar *> tabBars = qFindChildren<QTabBar *>(m_tabWidget);
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Q_ASSERT(tabBars.size() == 1);
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m_cachedTabBar = tabBars.front();
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}
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return m_cachedTabBar;
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}
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static bool canMove(const QPoint &pressPoint, const QMouseEvent *e)
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{
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const QPoint pt = pressPoint - e->pos();
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return pt.manhattanLength() > QApplication::startDragDistance();
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}
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bool QTabWidgetEventFilter::eventFilter(QObject *o, QEvent *e)
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{
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const QEvent::Type type = e->type();
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// Do not try to locate tab bar and form window, etc. for uninteresting events and
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// avoid asserts about missing tab bars when being destroyed
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switch (type) {
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case QEvent::MouseButtonDblClick:
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case QEvent::MouseButtonPress:
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case QEvent::MouseButtonRelease:
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case QEvent::MouseMove:
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case QEvent::DragLeave:
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case QEvent::DragEnter:
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case QEvent::DragMove:
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case QEvent::Drop:
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break;
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default:
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return false;
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}
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if (o != tabBar())
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return false;
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QDesignerFormWindowInterface *fw = formWindow();
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if (!fw)
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return false;
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switch (type) {
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case QEvent::MouseButtonDblClick:
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break;
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case QEvent::MouseButtonPress: {
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QMouseEvent *mev = static_cast<QMouseEvent*>(e);
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if (QDesignerFormWindowInterface *fw = formWindow()) {
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fw->clearSelection();
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fw->selectWidget(m_tabWidget, true);
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}
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if (mev->button() & Qt::LeftButton) {
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m_mousePressed = true;
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m_pressPoint = mev->pos();
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QTabBar *tabbar = tabBar();
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const int count = tabbar->count();
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for (int i = 0; i < count; ++i) {
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if (tabbar->tabRect(i).contains(m_pressPoint)) {
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if (i != tabbar->currentIndex()) {
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qdesigner_internal::SetPropertyCommand *cmd = new qdesigner_internal::SetPropertyCommand(fw);
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cmd->init(m_tabWidget, QLatin1String("currentIndex"), i);
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fw->commandHistory()->push(cmd);
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}
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break;
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}
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}
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}
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} break;
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case QEvent::MouseButtonRelease:
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m_mousePressed = false;
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break;
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case QEvent::MouseMove: {
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QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(e);
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if (m_mousePressed && canMove(m_pressPoint, mouseEvent)) {
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const int index = m_tabWidget->currentIndex();
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if (index == -1)
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break;
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m_mousePressed = false;
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QDrag *drg = new QDrag(m_tabWidget);
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drg->setMimeData(new qdesigner_internal::MyMimeData(m_tabWidget));
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m_dragIndex = index;
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m_dragPage = m_tabWidget->currentWidget();
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m_dragLabel = m_tabWidget->tabText(index);
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m_dragIcon = m_tabWidget->tabIcon(index);
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if (m_dragIcon.isNull()) {
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QLabel *label = new QLabel(m_dragLabel);
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label->adjustSize();
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drg->setPixmap(QPixmap::grabWidget(label));
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label->deleteLater();
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} else {
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drg->setPixmap(m_dragIcon.pixmap(22, 22));
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}
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m_tabWidget->removeTab(m_dragIndex);
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const Qt::DropActions dropAction = drg->start(Qt::MoveAction);
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if (dropAction == Qt::IgnoreAction) {
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// abort
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m_tabWidget->insertTab(m_dragIndex, m_dragPage, m_dragIcon, m_dragLabel);
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m_tabWidget->setCurrentIndex(m_dragIndex);
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}
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if (m_dropIndicator)
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m_dropIndicator->hide();
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}
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} break;
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case QEvent::DragLeave: {
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if (m_dropIndicator)
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m_dropIndicator->hide();
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} break;
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case QEvent::DragEnter:
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case QEvent::DragMove: {
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QDragMoveEvent *de = static_cast<QDragMoveEvent*>(e);
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if (!qdesigner_internal::MyMimeData::fromMyTab(de->mimeData(), m_tabWidget))
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return false;
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if (de->proposedAction() == Qt::MoveAction)
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de->acceptProposedAction();
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else {
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de->setDropAction(Qt::MoveAction);
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de->accept();
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}
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QRect rect;
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const int index = pageFromPosition(de->pos(), rect);
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if (!m_dropIndicator) {
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m_dropIndicator = new QWidget(m_tabWidget);
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QPalette p = m_dropIndicator->palette();
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p.setColor(m_tabWidget->backgroundRole(), Qt::red);
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m_dropIndicator->setPalette(p);
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}
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QPoint pos;
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if (index == m_tabWidget->count())
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pos = tabBar()->mapToParent(QPoint(rect.x() + rect.width(), rect.y()));
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else
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pos = tabBar()->mapToParent(QPoint(rect.x(), rect.y()));
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m_dropIndicator->setGeometry(pos.x(), pos.y() , 3, rect.height());
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m_dropIndicator->show();
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} break;
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case QEvent::Drop: {
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QDropEvent *de = static_cast<QDropEvent*>(e);
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if (!qdesigner_internal::MyMimeData::fromMyTab(de->mimeData(), m_tabWidget))
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return false;
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de->acceptProposedAction();
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de->accept();
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QRect rect;
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const int newIndex = pageFromPosition(de->pos(), rect);
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qdesigner_internal::MoveTabPageCommand *cmd = new qdesigner_internal::MoveTabPageCommand(fw);
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m_tabWidget->insertTab(m_dragIndex, m_dragPage, m_dragIcon, m_dragLabel);
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cmd->init(m_tabWidget, m_dragPage, m_dragIcon, m_dragLabel, m_dragIndex, newIndex);
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fw->commandHistory()->push(cmd);
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} break;
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default:
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break;
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}
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return false;
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}
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void QTabWidgetEventFilter::removeCurrentPage()
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{
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if (!m_tabWidget->currentWidget())
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return;
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if (QDesignerFormWindowInterface *fw = formWindow()) {
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qdesigner_internal::DeleteTabPageCommand *cmd = new qdesigner_internal::DeleteTabPageCommand(fw);
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cmd->init(m_tabWidget);
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fw->commandHistory()->push(cmd);
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}
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}
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void QTabWidgetEventFilter::addPage()
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{
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if (QDesignerFormWindowInterface *fw = formWindow()) {
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qdesigner_internal::AddTabPageCommand *cmd = new qdesigner_internal::AddTabPageCommand(fw);
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cmd->init(m_tabWidget, qdesigner_internal::AddTabPageCommand::InsertBefore);
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fw->commandHistory()->push(cmd);
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}
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}
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void QTabWidgetEventFilter::addPageAfter()
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{
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if (QDesignerFormWindowInterface *fw = formWindow()) {
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qdesigner_internal::AddTabPageCommand *cmd = new qdesigner_internal::AddTabPageCommand(fw);
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cmd->init(m_tabWidget, qdesigner_internal::AddTabPageCommand::InsertAfter);
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fw->commandHistory()->push(cmd);
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}
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}
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QDesignerFormWindowInterface *QTabWidgetEventFilter::formWindow() const
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{
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return QDesignerFormWindowInterface::findFormWindow(const_cast<QTabWidget*>(m_tabWidget));
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}
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// Get page from mouse position. Default to new page if in right half of last page?
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int QTabWidgetEventFilter::pageFromPosition(const QPoint &pos, QRect &rect) const
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{
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int index = 0;
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const QTabBar *tabbar = tabBar();
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const int count = m_tabWidget->count();
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for (; index < count; index++) {
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const QRect rc = tabbar->tabRect(index);
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if (rc.contains(pos)) {
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rect = rc;
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break;
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}
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}
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if (index == count -1) {
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QRect rect2 = rect;
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rect2.setLeft(rect2.left() + rect2.width() / 2);
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if (rect2.contains(pos))
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index++;
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}
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return index;
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}
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QMenu *QTabWidgetEventFilter::addContextMenuActions(QMenu *popup)
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{
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QMenu *pageMenu = 0;
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const int count = m_tabWidget->count();
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m_actionDeletePage->setEnabled(count);
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if (count) {
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const int currentIndex = m_tabWidget->currentIndex();
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const QString pageSubMenuLabel = tr("Page %1 of %2").arg(currentIndex + 1).arg(count);
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pageMenu = popup->addMenu(pageSubMenuLabel);
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pageMenu->addAction(m_actionDeletePage);
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// Set up promotion menu for current widget.
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if (QWidget *page = m_tabWidget->currentWidget ()) {
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m_pagePromotionTaskMenu->setWidget(page);
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m_pagePromotionTaskMenu->addActions(QDesignerFormWindowInterface::findFormWindow(m_tabWidget),
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qdesigner_internal::PromotionTaskMenu::SuppressGlobalEdit,
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pageMenu);
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}
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QMenu *insertPageMenu = popup->addMenu(tr("Insert Page"));
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insertPageMenu->addAction(m_actionInsertPageAfter);
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insertPageMenu->addAction(m_actionInsertPage);
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} else {
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QAction *insertPageAction = popup->addAction(tr("Insert Page"));
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connect(insertPageAction, SIGNAL(triggered()), this, SLOT(addPage()));
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}
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popup->addSeparator();
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return pageMenu;
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}
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// ----------- QTabWidgetPropertySheet
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static const char *currentTabTextKey = "currentTabText";
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static const char *currentTabNameKey = "currentTabName";
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static const char *currentTabIconKey = "currentTabIcon";
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static const char *currentTabToolTipKey = "currentTabToolTip";
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static const char *currentTabWhatsThisKey = "currentTabWhatsThis";
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static const char *tabMovableKey = "movable";
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QTabWidgetPropertySheet::QTabWidgetPropertySheet(QTabWidget *object, QObject *parent) :
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QDesignerPropertySheet(object, parent),
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m_tabWidget(object)
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{
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createFakeProperty(QLatin1String(currentTabTextKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));
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createFakeProperty(QLatin1String(currentTabNameKey), QString());
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createFakeProperty(QLatin1String(currentTabIconKey), qVariantFromValue(qdesigner_internal::PropertySheetIconValue()));
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if (formWindowBase())
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formWindowBase()->addReloadableProperty(this, indexOf(QLatin1String(currentTabIconKey)));
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createFakeProperty(QLatin1String(currentTabToolTipKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));
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createFakeProperty(QLatin1String(currentTabWhatsThisKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));
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// Prevent the tab widget's drag and drop handling from interfering with Designer's
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createFakeProperty(QLatin1String(tabMovableKey), QVariant(false));
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}
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QTabWidgetPropertySheet::TabWidgetProperty QTabWidgetPropertySheet::tabWidgetPropertyFromName(const QString &name)
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{
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typedef QHash<QString, TabWidgetProperty> TabWidgetPropertyHash;
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static TabWidgetPropertyHash tabWidgetPropertyHash;
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if (tabWidgetPropertyHash.empty()) {
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tabWidgetPropertyHash.insert(QLatin1String(currentTabTextKey), PropertyCurrentTabText);
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tabWidgetPropertyHash.insert(QLatin1String(currentTabNameKey), PropertyCurrentTabName);
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tabWidgetPropertyHash.insert(QLatin1String(currentTabIconKey), PropertyCurrentTabIcon);
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tabWidgetPropertyHash.insert(QLatin1String(currentTabToolTipKey), PropertyCurrentTabToolTip);
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tabWidgetPropertyHash.insert(QLatin1String(currentTabWhatsThisKey), PropertyCurrentTabWhatsThis);
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}
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return tabWidgetPropertyHash.value(name, PropertyTabWidgetNone);
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}
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void QTabWidgetPropertySheet::setProperty(int index, const QVariant &value)
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{
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const TabWidgetProperty tabWidgetProperty = tabWidgetPropertyFromName(propertyName(index));
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if (tabWidgetProperty == PropertyTabWidgetNone) {
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QDesignerPropertySheet::setProperty(index, value);
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return;
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}
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// index-dependent
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const int currentIndex = m_tabWidget->currentIndex();
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QWidget *currentWidget = m_tabWidget->currentWidget();
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if (!currentWidget)
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return;
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switch (tabWidgetProperty) {
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case PropertyCurrentTabText:
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m_tabWidget->setTabText(currentIndex, qvariant_cast<QString>(resolvePropertyValue(index, value)));
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m_pageToData[currentWidget].text = qVariantValue<qdesigner_internal::PropertySheetStringValue>(value);
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break;
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case PropertyCurrentTabName:
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currentWidget->setObjectName(value.toString());
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break;
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case PropertyCurrentTabIcon:
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m_tabWidget->setTabIcon(currentIndex, qvariant_cast<QIcon>(resolvePropertyValue(index, value)));
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m_pageToData[currentWidget].icon = qVariantValue<qdesigner_internal::PropertySheetIconValue>(value);
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break;
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case PropertyCurrentTabToolTip:
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m_tabWidget->setTabToolTip(currentIndex, qvariant_cast<QString>(resolvePropertyValue(index, value)));
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m_pageToData[currentWidget].tooltip = qVariantValue<qdesigner_internal::PropertySheetStringValue>(value);
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break;
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case PropertyCurrentTabWhatsThis:
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m_tabWidget->setTabWhatsThis(currentIndex, qvariant_cast<QString>(resolvePropertyValue(index, value)));
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m_pageToData[currentWidget].whatsthis = qVariantValue<qdesigner_internal::PropertySheetStringValue>(value);
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break;
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case PropertyTabWidgetNone:
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break;
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}
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}
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bool QTabWidgetPropertySheet::isEnabled(int index) const
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{
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if (tabWidgetPropertyFromName(propertyName(index)) == PropertyTabWidgetNone)
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return QDesignerPropertySheet::isEnabled(index);
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return m_tabWidget->currentIndex() != -1;
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}
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QVariant QTabWidgetPropertySheet::property(int index) const
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{
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const TabWidgetProperty tabWidgetProperty = tabWidgetPropertyFromName(propertyName(index));
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if (tabWidgetProperty == PropertyTabWidgetNone)
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return QDesignerPropertySheet::property(index);
|
|
|
|
// index-dependent
|
|
QWidget *currentWidget = m_tabWidget->currentWidget();
|
|
if (!currentWidget) {
|
|
if (tabWidgetProperty == PropertyCurrentTabIcon)
|
|
return qVariantFromValue(qdesigner_internal::PropertySheetIconValue());
|
|
if (tabWidgetProperty == PropertyCurrentTabText)
|
|
return qVariantFromValue(qdesigner_internal::PropertySheetStringValue());
|
|
if (tabWidgetProperty == PropertyCurrentTabToolTip)
|
|
return qVariantFromValue(qdesigner_internal::PropertySheetStringValue());
|
|
if (tabWidgetProperty == PropertyCurrentTabWhatsThis)
|
|
return qVariantFromValue(qdesigner_internal::PropertySheetStringValue());
|
|
return QVariant(QString());
|
|
}
|
|
|
|
// index-dependent
|
|
switch (tabWidgetProperty) {
|
|
case PropertyCurrentTabText:
|
|
return qVariantFromValue(m_pageToData.value(currentWidget).text);
|
|
case PropertyCurrentTabName:
|
|
return currentWidget->objectName();
|
|
case PropertyCurrentTabIcon:
|
|
return qVariantFromValue(m_pageToData.value(currentWidget).icon);
|
|
case PropertyCurrentTabToolTip:
|
|
return qVariantFromValue(m_pageToData.value(currentWidget).tooltip);
|
|
case PropertyCurrentTabWhatsThis:
|
|
return qVariantFromValue(m_pageToData.value(currentWidget).whatsthis);
|
|
case PropertyTabWidgetNone:
|
|
break;
|
|
}
|
|
return QVariant();
|
|
}
|
|
|
|
bool QTabWidgetPropertySheet::reset(int index)
|
|
{
|
|
const TabWidgetProperty tabWidgetProperty = tabWidgetPropertyFromName(propertyName(index));
|
|
if (tabWidgetProperty == PropertyTabWidgetNone)
|
|
return QDesignerPropertySheet::reset(index);
|
|
|
|
// index-dependent
|
|
QWidget *currentWidget = m_tabWidget->currentWidget();
|
|
if (!currentWidget)
|
|
return false;
|
|
|
|
// index-dependent
|
|
switch (tabWidgetProperty) {
|
|
case PropertyCurrentTabName:
|
|
setProperty(index, QString());
|
|
break;
|
|
case PropertyCurrentTabToolTip:
|
|
m_pageToData[currentWidget].tooltip = qdesigner_internal::PropertySheetStringValue();
|
|
setProperty(index, QString());
|
|
break;
|
|
case PropertyCurrentTabWhatsThis:
|
|
m_pageToData[currentWidget].whatsthis = qdesigner_internal::PropertySheetStringValue();
|
|
setProperty(index, QString());
|
|
break;
|
|
case PropertyCurrentTabText:
|
|
m_pageToData[currentWidget].text = qdesigner_internal::PropertySheetStringValue();
|
|
setProperty(index, QString());
|
|
break;
|
|
case PropertyCurrentTabIcon:
|
|
m_pageToData[currentWidget].icon = qdesigner_internal::PropertySheetIconValue();
|
|
setProperty(index, QIcon());
|
|
break;
|
|
case PropertyTabWidgetNone:
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool QTabWidgetPropertySheet::checkProperty(const QString &propertyName)
|
|
{
|
|
switch (tabWidgetPropertyFromName(propertyName)) {
|
|
case PropertyCurrentTabText:
|
|
case PropertyCurrentTabName:
|
|
case PropertyCurrentTabToolTip:
|
|
case PropertyCurrentTabWhatsThis:
|
|
case PropertyCurrentTabIcon:
|
|
return false;
|
|
default:
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
QT_END_NAMESPACE
|
|
|
|
#include "qdesigner_tabwidget.moc" // required for MyMimeData
|