qt_demoe/designer/lib/shared/qdesigner_stackedbox.cpp

400 lines
15 KiB
C++

/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
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****************************************************************************/
#include "qdesigner_stackedbox_p.h"
#include "qdesigner_command_p.h"
#include "qdesigner_propertycommand_p.h"
#include "orderdialog_p.h"
#include "promotiontaskmenu_p.h"
#include "widgetfactory_p.h"
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtGui/QToolButton>
#include <QtGui/QAction>
#include <QtGui/qevent.h>
#include <QtGui/QMenu>
#include <QtGui/QStackedWidget>
#include <QtCore/QDebug>
QT_BEGIN_NAMESPACE
static QToolButton *createToolButton(QWidget *parent, Qt::ArrowType at, const QString &name) {
QToolButton *rc = new QToolButton();
rc->setAttribute(Qt::WA_NoChildEventsForParent, true);
rc->setParent(parent);
rc->setObjectName(name);
rc->setArrowType(at);
rc->setAutoRaise(true);
rc->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
rc->setFixedSize(QSize(15, 15));
return rc;
}
// --------------- QStackedWidgetPreviewEventFilter
QStackedWidgetPreviewEventFilter::QStackedWidgetPreviewEventFilter(QStackedWidget *parent) :
QObject(parent),
m_buttonToolTipEnabled(false), // Not on preview
m_stackedWidget(parent),
m_prev(createToolButton(m_stackedWidget, Qt::LeftArrow, QLatin1String("__qt__passive_prev"))),
m_next(createToolButton(m_stackedWidget, Qt::RightArrow, QLatin1String("__qt__passive_next")))
{
connect(m_prev, SIGNAL(clicked()), this, SLOT(prevPage()));
connect(m_next, SIGNAL(clicked()), this, SLOT(nextPage()));
updateButtons();
m_stackedWidget->installEventFilter(this);
m_prev->installEventFilter(this);
m_next->installEventFilter(this);
}
void QStackedWidgetPreviewEventFilter::install(QStackedWidget *stackedWidget)
{
new QStackedWidgetPreviewEventFilter(stackedWidget);
}
void QStackedWidgetPreviewEventFilter::updateButtons()
{
m_prev->move(m_stackedWidget->width() - 31, 1);
m_prev->show();
m_prev->raise();
m_next->move(m_stackedWidget->width() - 16, 1);
m_next->show();
m_next->raise();
}
void QStackedWidgetPreviewEventFilter::prevPage()
{
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
fw->clearSelection();
fw->selectWidget(stackedWidget(), true);
}
const int count = m_stackedWidget->count();
if (count > 1) {
int newIndex = m_stackedWidget->currentIndex() - 1;
if (newIndex < 0)
newIndex = count - 1;
gotoPage(newIndex);
}
}
void QStackedWidgetPreviewEventFilter::nextPage()
{
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
fw->clearSelection();
fw->selectWidget(stackedWidget(), true);
}
const int count = m_stackedWidget->count();
if (count > 1)
gotoPage((m_stackedWidget->currentIndex() + 1) % count);
}
bool QStackedWidgetPreviewEventFilter::eventFilter(QObject *watched, QEvent *event)
{
if (watched->isWidgetType()) {
if (watched == m_stackedWidget) {
switch (event->type()) {
case QEvent::LayoutRequest:
updateButtons();
break;
case QEvent::ChildAdded:
case QEvent::ChildRemoved:
case QEvent::Resize:
case QEvent::Show:
updateButtons();
break;
default:
break;
}
}
if (m_buttonToolTipEnabled && (watched == m_next || watched == m_prev)) {
switch (event->type()) {
case QEvent::ToolTip:
updateButtonToolTip(watched); // Tooltip includes page number, so, refresh on demand
break;
default:
break;
}
}
}
return QObject::eventFilter(watched, event);
}
void QStackedWidgetPreviewEventFilter::gotoPage(int page)
{
m_stackedWidget->setCurrentIndex(page);
updateButtons();
}
static inline QString stackedClassName(QStackedWidget *w)
{
if (const QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(w))
return qdesigner_internal::WidgetFactory::classNameOf(fw->core(), w);
return QLatin1String("Stacked widget");
}
void QStackedWidgetPreviewEventFilter::updateButtonToolTip(QObject *o)
{
QString className = QLatin1String("Stacked widget");
if (const QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_stackedWidget))
className = qdesigner_internal::WidgetFactory::classNameOf(fw->core(), m_stackedWidget);
if (o == m_prev) {
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());
m_prev->setToolTip(msg);
} else {
if (o == m_next) {
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());
m_next->setToolTip(msg);
}
}
}
// --------------- QStackedWidgetEventFilter
QStackedWidgetEventFilter::QStackedWidgetEventFilter(QStackedWidget *parent) :
QStackedWidgetPreviewEventFilter(parent),
m_actionPreviousPage(new QAction(tr("Previous Page"), this)),
m_actionNextPage(new QAction(tr("Next Page"), this)),
m_actionDeletePage(new QAction(tr("Delete"), this)),
m_actionInsertPage(new QAction(tr("Before Current Page"), this)),
m_actionInsertPageAfter(new QAction(tr("After Current Page"), this)),
m_actionChangePageOrder(new QAction(tr("Change Page Order..."), this)),
m_pagePromotionTaskMenu(new qdesigner_internal::PromotionTaskMenu(0, qdesigner_internal::PromotionTaskMenu::ModeSingleWidget, this))
{
setButtonToolTipEnabled(true);
connect(m_actionPreviousPage, SIGNAL(triggered()), this, SLOT(prevPage()));
connect(m_actionNextPage, SIGNAL(triggered()), this, SLOT(nextPage()));
connect(m_actionDeletePage, SIGNAL(triggered()), this, SLOT(removeCurrentPage()));
connect(m_actionInsertPage, SIGNAL(triggered()), this, SLOT(addPage()));
connect(m_actionInsertPageAfter, SIGNAL(triggered()), this, SLOT(addPageAfter()));
connect(m_actionChangePageOrder, SIGNAL(triggered()), this, SLOT(changeOrder()));
}
void QStackedWidgetEventFilter::install(QStackedWidget *stackedWidget)
{
new QStackedWidgetEventFilter(stackedWidget);
}
QStackedWidgetEventFilter *QStackedWidgetEventFilter::eventFilterOf(const QStackedWidget *stackedWidget)
{
// Look for 1st order children only..otherwise, we might get filters of nested widgets
const QObjectList children = stackedWidget->children();
const QObjectList::const_iterator cend = children.constEnd();
for (QObjectList::const_iterator it = children.constBegin(); it != cend; ++it) {
QObject *o = *it;
if (!o->isWidgetType())
if (QStackedWidgetEventFilter *ef = qobject_cast<QStackedWidgetEventFilter *>(o))
return ef;
}
return 0;
}
QMenu *QStackedWidgetEventFilter::addStackedWidgetContextMenuActions(const QStackedWidget *stackedWidget, QMenu *popup)
{
QStackedWidgetEventFilter *filter = eventFilterOf(stackedWidget);
if (!filter)
return 0;
return filter->addContextMenuActions(popup);
}
void QStackedWidgetEventFilter::removeCurrentPage()
{
if (stackedWidget()->currentIndex() == -1)
return;
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
qdesigner_internal::DeleteStackedWidgetPageCommand *cmd = new qdesigner_internal::DeleteStackedWidgetPageCommand(fw);
cmd->init(stackedWidget());
fw->commandHistory()->push(cmd);
}
}
void QStackedWidgetEventFilter::changeOrder()
{
QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget());
if (!fw)
return;
const QWidgetList oldPages = qdesigner_internal::OrderDialog::pagesOfContainer(fw->core(), stackedWidget());
const int pageCount = oldPages.size();
if (pageCount < 2)
return;
qdesigner_internal::OrderDialog dlg(fw);
dlg.setPageList(oldPages);
if (dlg.exec() == QDialog::Rejected)
return;
const QWidgetList newPages = dlg.pageList();
if (newPages == oldPages)
return;
fw->beginCommand(tr("Change Page Order"));
for(int i=0; i < pageCount; ++i) {
if (newPages.at(i) == stackedWidget()->widget(i))
continue;
qdesigner_internal::MoveStackedWidgetCommand *cmd = new qdesigner_internal::MoveStackedWidgetCommand(fw);
cmd->init(stackedWidget(), newPages.at(i), i);
fw->commandHistory()->push(cmd);
}
fw->endCommand();
}
void QStackedWidgetEventFilter::addPage()
{
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
qdesigner_internal::AddStackedWidgetPageCommand *cmd = new qdesigner_internal::AddStackedWidgetPageCommand(fw);
cmd->init(stackedWidget(), qdesigner_internal::AddStackedWidgetPageCommand::InsertBefore);
fw->commandHistory()->push(cmd);
}
}
void QStackedWidgetEventFilter::addPageAfter()
{
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
qdesigner_internal::AddStackedWidgetPageCommand *cmd = new qdesigner_internal::AddStackedWidgetPageCommand(fw);
cmd->init(stackedWidget(), qdesigner_internal::AddStackedWidgetPageCommand::InsertAfter);
fw->commandHistory()->push(cmd);
}
}
void QStackedWidgetEventFilter::gotoPage(int page) {
// Are we on a form or in a preview?
if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(stackedWidget())) {
qdesigner_internal::SetPropertyCommand *cmd = new qdesigner_internal::SetPropertyCommand(fw);
cmd->init(stackedWidget(), QLatin1String("currentIndex"), page);
fw->commandHistory()->push(cmd);
fw->emitSelectionChanged(); // Magically prevent an endless loop triggered by auto-repeat.
updateButtons();
} else {
QStackedWidgetPreviewEventFilter::gotoPage(page);
}
}
QMenu *QStackedWidgetEventFilter::addContextMenuActions(QMenu *popup)
{
QMenu *pageMenu = 0;
const int count = stackedWidget()->count();
const bool hasSeveralPages = count > 1;
m_actionDeletePage->setEnabled(count);
if (count) {
const QString pageSubMenuLabel = tr("Page %1 of %2").arg(stackedWidget()->currentIndex() + 1).arg(count);
pageMenu = popup->addMenu(pageSubMenuLabel);
pageMenu->addAction(m_actionDeletePage);
// Set up promotion menu for current widget.
if (QWidget *page = stackedWidget()->currentWidget ()) {
m_pagePromotionTaskMenu->setWidget(page);
m_pagePromotionTaskMenu->addActions(QDesignerFormWindowInterface::findFormWindow(stackedWidget()),
qdesigner_internal::PromotionTaskMenu::SuppressGlobalEdit,
pageMenu);
}
QMenu *insertPageMenu = popup->addMenu(tr("Insert Page"));
insertPageMenu->addAction(m_actionInsertPageAfter);
insertPageMenu->addAction(m_actionInsertPage);
} else {
QAction *insertPageAction = popup->addAction(tr("Insert Page"));
connect(insertPageAction, SIGNAL(triggered()), this, SLOT(addPage()));
}
popup->addAction(m_actionNextPage);
m_actionNextPage->setEnabled(hasSeveralPages);
popup->addAction(m_actionPreviousPage);
m_actionPreviousPage->setEnabled(hasSeveralPages);
popup->addAction(m_actionChangePageOrder);
m_actionChangePageOrder->setEnabled(hasSeveralPages);
popup->addSeparator();
return pageMenu;
}
// -------- QStackedWidgetPropertySheet
static const char *pagePropertyName = "currentPageName";
QStackedWidgetPropertySheet::QStackedWidgetPropertySheet(QStackedWidget *object, QObject *parent) :
QDesignerPropertySheet(object, parent),
m_stackedWidget(object)
{
createFakeProperty(QLatin1String(pagePropertyName), QString());
}
bool QStackedWidgetPropertySheet::isEnabled(int index) const
{
if (propertyName(index) != QLatin1String(pagePropertyName))
return QDesignerPropertySheet::isEnabled(index);
return m_stackedWidget->currentWidget() != 0;
}
void QStackedWidgetPropertySheet::setProperty(int index, const QVariant &value)
{
if (propertyName(index) == QLatin1String(pagePropertyName)) {
if (QWidget *w = m_stackedWidget->currentWidget())
w->setObjectName(value.toString());
} else {
QDesignerPropertySheet::setProperty(index, value);
}
}
QVariant QStackedWidgetPropertySheet::property(int index) const
{
if (propertyName(index) == QLatin1String(pagePropertyName)) {
if (const QWidget *w = m_stackedWidget->currentWidget())
return w->objectName();
return QString();
}
return QDesignerPropertySheet::property(index);
}
bool QStackedWidgetPropertySheet::reset(int index)
{
if (propertyName(index) == QLatin1String(pagePropertyName)) {
setProperty(index, QString());
return true;
}
return QDesignerPropertySheet::reset(index);
}
bool QStackedWidgetPropertySheet::checkProperty(const QString &propertyName)
{
return propertyName != QLatin1String(pagePropertyName);
}
QT_END_NAMESPACE