400 lines
15 KiB
C++
400 lines
15 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_stackedbox_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 "orderdialog_p.h"
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#include "promotiontaskmenu_p.h"
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#include "widgetfactory_p.h"
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#include <QtDesigner/QDesignerFormWindowInterface>
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#include <QtGui/QToolButton>
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#include <QtGui/QAction>
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#include <QtGui/qevent.h>
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#include <QtGui/QMenu>
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#include <QtGui/QStackedWidget>
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#include <QtCore/QDebug>
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QT_BEGIN_NAMESPACE
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static QToolButton *createToolButton(QWidget *parent, Qt::ArrowType at, const QString &name) {
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QToolButton *rc = new QToolButton();
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rc->setAttribute(Qt::WA_NoChildEventsForParent, true);
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rc->setParent(parent);
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rc->setObjectName(name);
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rc->setArrowType(at);
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rc->setAutoRaise(true);
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rc->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
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rc->setFixedSize(QSize(15, 15));
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return rc;
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}
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// --------------- QStackedWidgetPreviewEventFilter
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QStackedWidgetPreviewEventFilter::QStackedWidgetPreviewEventFilter(QStackedWidget *parent) :
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QObject(parent),
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m_buttonToolTipEnabled(false), // Not on preview
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m_stackedWidget(parent),
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m_prev(createToolButton(m_stackedWidget, Qt::LeftArrow, QLatin1String("__qt__passive_prev"))),
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m_next(createToolButton(m_stackedWidget, Qt::RightArrow, QLatin1String("__qt__passive_next")))
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{
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connect(m_prev, SIGNAL(clicked()), this, SLOT(prevPage()));
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connect(m_next, SIGNAL(clicked()), this, SLOT(nextPage()));
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updateButtons();
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m_stackedWidget->installEventFilter(this);
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m_prev->installEventFilter(this);
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m_next->installEventFilter(this);
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}
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void QStackedWidgetPreviewEventFilter::install(QStackedWidget *stackedWidget)
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{
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new QStackedWidgetPreviewEventFilter(stackedWidget);
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}
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void QStackedWidgetPreviewEventFilter::updateButtons()
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{
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m_prev->move(m_stackedWidget->width() - 31, 1);
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m_prev->show();
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m_prev->raise();
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m_next->move(m_stackedWidget->width() - 16, 1);
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m_next->show();
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m_next->raise();
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}
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void QStackedWidgetPreviewEventFilter::prevPage()
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{
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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fw->clearSelection();
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fw->selectWidget(stackedWidget(), true);
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}
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const int count = m_stackedWidget->count();
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if (count > 1) {
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int newIndex = m_stackedWidget->currentIndex() - 1;
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if (newIndex < 0)
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newIndex = count - 1;
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gotoPage(newIndex);
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}
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}
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void QStackedWidgetPreviewEventFilter::nextPage()
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{
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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fw->clearSelection();
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fw->selectWidget(stackedWidget(), true);
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}
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const int count = m_stackedWidget->count();
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if (count > 1)
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gotoPage((m_stackedWidget->currentIndex() + 1) % count);
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}
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bool QStackedWidgetPreviewEventFilter::eventFilter(QObject *watched, QEvent *event)
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{
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if (watched->isWidgetType()) {
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if (watched == m_stackedWidget) {
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switch (event->type()) {
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case QEvent::LayoutRequest:
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updateButtons();
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break;
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case QEvent::ChildAdded:
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case QEvent::ChildRemoved:
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case QEvent::Resize:
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case QEvent::Show:
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updateButtons();
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break;
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default:
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break;
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}
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}
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if (m_buttonToolTipEnabled && (watched == m_next || watched == m_prev)) {
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switch (event->type()) {
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case QEvent::ToolTip:
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updateButtonToolTip(watched); // Tooltip includes page number, so, refresh on demand
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break;
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default:
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break;
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}
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}
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}
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return QObject::eventFilter(watched, event);
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}
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void QStackedWidgetPreviewEventFilter::gotoPage(int page)
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{
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m_stackedWidget->setCurrentIndex(page);
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updateButtons();
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}
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static inline QString stackedClassName(QStackedWidget *w)
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{
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if (const QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(w))
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return qdesigner_internal::WidgetFactory::classNameOf(fw->core(), w);
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return QLatin1String("Stacked widget");
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}
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void QStackedWidgetPreviewEventFilter::updateButtonToolTip(QObject *o)
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{
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QString className = QLatin1String("Stacked widget");
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if (const QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_stackedWidget))
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className = qdesigner_internal::WidgetFactory::classNameOf(fw->core(), m_stackedWidget);
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if (o == m_prev) {
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const QString msg = tr("Go to previous page of %1 '%2' (%3/%4).").arg(stackedClassName(m_stackedWidget)).arg(m_stackedWidget->objectName()).arg(m_stackedWidget->currentIndex() + 1).arg(m_stackedWidget->count());
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m_prev->setToolTip(msg);
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} else {
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if (o == m_next) {
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const QString msg = tr("Go to next page of %1 '%2' (%3/%4).").arg(stackedClassName(m_stackedWidget)).arg(m_stackedWidget->objectName()).arg(m_stackedWidget->currentIndex() + 1).arg(m_stackedWidget->count());
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m_next->setToolTip(msg);
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}
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}
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}
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// --------------- QStackedWidgetEventFilter
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QStackedWidgetEventFilter::QStackedWidgetEventFilter(QStackedWidget *parent) :
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QStackedWidgetPreviewEventFilter(parent),
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m_actionPreviousPage(new QAction(tr("Previous Page"), this)),
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m_actionNextPage(new QAction(tr("Next Page"), this)),
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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_actionChangePageOrder(new QAction(tr("Change Page Order..."), 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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setButtonToolTipEnabled(true);
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connect(m_actionPreviousPage, SIGNAL(triggered()), this, SLOT(prevPage()));
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connect(m_actionNextPage, SIGNAL(triggered()), this, SLOT(nextPage()));
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connect(m_actionDeletePage, SIGNAL(triggered()), this, SLOT(removeCurrentPage()));
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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_actionChangePageOrder, SIGNAL(triggered()), this, SLOT(changeOrder()));
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}
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void QStackedWidgetEventFilter::install(QStackedWidget *stackedWidget)
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{
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new QStackedWidgetEventFilter(stackedWidget);
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}
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QStackedWidgetEventFilter *QStackedWidgetEventFilter::eventFilterOf(const QStackedWidget *stackedWidget)
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{
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// Look for 1st order children only..otherwise, we might get filters of nested widgets
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const QObjectList children = stackedWidget->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 (QStackedWidgetEventFilter *ef = qobject_cast<QStackedWidgetEventFilter *>(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 *QStackedWidgetEventFilter::addStackedWidgetContextMenuActions(const QStackedWidget *stackedWidget, QMenu *popup)
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{
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QStackedWidgetEventFilter *filter = eventFilterOf(stackedWidget);
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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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void QStackedWidgetEventFilter::removeCurrentPage()
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{
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if (stackedWidget()->currentIndex() == -1)
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return;
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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qdesigner_internal::DeleteStackedWidgetPageCommand *cmd = new qdesigner_internal::DeleteStackedWidgetPageCommand(fw);
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cmd->init(stackedWidget());
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fw->commandHistory()->push(cmd);
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}
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}
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void QStackedWidgetEventFilter::changeOrder()
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{
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QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget());
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if (!fw)
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return;
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const QWidgetList oldPages = qdesigner_internal::OrderDialog::pagesOfContainer(fw->core(), stackedWidget());
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const int pageCount = oldPages.size();
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if (pageCount < 2)
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return;
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qdesigner_internal::OrderDialog dlg(fw);
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dlg.setPageList(oldPages);
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if (dlg.exec() == QDialog::Rejected)
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return;
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const QWidgetList newPages = dlg.pageList();
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if (newPages == oldPages)
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return;
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fw->beginCommand(tr("Change Page Order"));
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for(int i=0; i < pageCount; ++i) {
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if (newPages.at(i) == stackedWidget()->widget(i))
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continue;
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qdesigner_internal::MoveStackedWidgetCommand *cmd = new qdesigner_internal::MoveStackedWidgetCommand(fw);
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cmd->init(stackedWidget(), newPages.at(i), i);
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fw->commandHistory()->push(cmd);
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}
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fw->endCommand();
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}
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void QStackedWidgetEventFilter::addPage()
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{
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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qdesigner_internal::AddStackedWidgetPageCommand *cmd = new qdesigner_internal::AddStackedWidgetPageCommand(fw);
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cmd->init(stackedWidget(), qdesigner_internal::AddStackedWidgetPageCommand::InsertBefore);
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fw->commandHistory()->push(cmd);
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}
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}
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void QStackedWidgetEventFilter::addPageAfter()
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{
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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qdesigner_internal::AddStackedWidgetPageCommand *cmd = new qdesigner_internal::AddStackedWidgetPageCommand(fw);
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cmd->init(stackedWidget(), qdesigner_internal::AddStackedWidgetPageCommand::InsertAfter);
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fw->commandHistory()->push(cmd);
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}
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}
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void QStackedWidgetEventFilter::gotoPage(int page) {
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// Are we on a form or in a preview?
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if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
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qdesigner_internal::SetPropertyCommand *cmd = new qdesigner_internal::SetPropertyCommand(fw);
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cmd->init(stackedWidget(), QLatin1String("currentIndex"), page);
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fw->commandHistory()->push(cmd);
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fw->emitSelectionChanged(); // Magically prevent an endless loop triggered by auto-repeat.
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updateButtons();
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} else {
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QStackedWidgetPreviewEventFilter::gotoPage(page);
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}
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}
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QMenu *QStackedWidgetEventFilter::addContextMenuActions(QMenu *popup)
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{
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QMenu *pageMenu = 0;
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const int count = stackedWidget()->count();
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const bool hasSeveralPages = count > 1;
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m_actionDeletePage->setEnabled(count);
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if (count) {
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const QString pageSubMenuLabel = tr("Page %1 of %2").arg(stackedWidget()->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 = stackedWidget()->currentWidget ()) {
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m_pagePromotionTaskMenu->setWidget(page);
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m_pagePromotionTaskMenu->addActions(QDesignerFormWindowInterface::findFormWindow(stackedWidget()),
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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->addAction(m_actionNextPage);
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m_actionNextPage->setEnabled(hasSeveralPages);
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popup->addAction(m_actionPreviousPage);
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m_actionPreviousPage->setEnabled(hasSeveralPages);
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popup->addAction(m_actionChangePageOrder);
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m_actionChangePageOrder->setEnabled(hasSeveralPages);
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popup->addSeparator();
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return pageMenu;
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}
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// -------- QStackedWidgetPropertySheet
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static const char *pagePropertyName = "currentPageName";
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QStackedWidgetPropertySheet::QStackedWidgetPropertySheet(QStackedWidget *object, QObject *parent) :
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QDesignerPropertySheet(object, parent),
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m_stackedWidget(object)
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{
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createFakeProperty(QLatin1String(pagePropertyName), QString());
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}
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bool QStackedWidgetPropertySheet::isEnabled(int index) const
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{
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if (propertyName(index) != QLatin1String(pagePropertyName))
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return QDesignerPropertySheet::isEnabled(index);
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return m_stackedWidget->currentWidget() != 0;
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}
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void QStackedWidgetPropertySheet::setProperty(int index, const QVariant &value)
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{
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if (propertyName(index) == QLatin1String(pagePropertyName)) {
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if (QWidget *w = m_stackedWidget->currentWidget())
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w->setObjectName(value.toString());
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} else {
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QDesignerPropertySheet::setProperty(index, value);
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}
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}
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QVariant QStackedWidgetPropertySheet::property(int index) const
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{
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if (propertyName(index) == QLatin1String(pagePropertyName)) {
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if (const QWidget *w = m_stackedWidget->currentWidget())
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return w->objectName();
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return QString();
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}
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return QDesignerPropertySheet::property(index);
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}
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bool QStackedWidgetPropertySheet::reset(int index)
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{
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if (propertyName(index) == QLatin1String(pagePropertyName)) {
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setProperty(index, QString());
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return true;
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}
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return QDesignerPropertySheet::reset(index);
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}
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bool QStackedWidgetPropertySheet::checkProperty(const QString &propertyName)
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{
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return propertyName != QLatin1String(pagePropertyName);
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}
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QT_END_NAMESPACE
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