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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Components project on Qt Labs.
**
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions contained
** in the Technology Preview License Agreement accompanying this package.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
****************************************************************************/
#include "qtmenu.h"
#include "qdebug.h"
#include <qapplication.h>
#include <qmenubar.h>
#include <qabstractitemmodel.h>
#include "qtoplevelwindow.h"
QtMenu::QtMenu(QObject *parent)
: QtMenuBase(parent),
dummy(0),
m_selectedIndex(0),
m_highlightedIndex(0)
{
m_qmenu = new QMenu(0);
connect(m_qmenu, SIGNAL(aboutToHide()), this, SIGNAL(menuClosed()));
}
QtMenu::~QtMenu()
{
delete m_qmenu;
}
void QtMenu::setText(const QString &text)
{
m_qmenu->setTitle(text);
}
QString QtMenu::text() const
{
return m_qmenu->title();
}
void QtMenu::setSelectedIndex(int index)
{
m_selectedIndex = index;
QList<QAction *> actionList = m_qmenu->actions();
if (m_selectedIndex >= 0 && m_selectedIndex < actionList.size())
m_qmenu->setActiveAction(actionList[m_selectedIndex]);
emit selectedIndexChanged();
}
void QtMenu::setHoveredIndex(int index)
{
m_highlightedIndex = index;
QList<QAction *> actionList = m_qmenu->actions();
if (m_highlightedIndex >= 0 && m_highlightedIndex < actionList.size())
m_qmenu->setActiveAction(actionList[m_highlightedIndex]);
emit hoveredIndexChanged();
}
QDeclarativeListProperty<QtMenuBase> QtMenu::menuItems()
{
return QDeclarativeListProperty<QtMenuBase>(this, 0, &QtMenu::append_qmenuItem);
}
void QtMenu::showPopup(qreal x, qreal y, int atActionIndex)
{
if (m_qmenu->isVisible())
return;
// If atActionIndex is valid, x and y is specified from the
// the position of the corresponding QAction:
QAction *atAction = 0;
if (atActionIndex >= 0 && atActionIndex < m_qmenu->actions().size())
atAction = m_qmenu->actions()[atActionIndex];
// x,y are in view coordinates, QMenu expects screen coordinates
// ### activeWindow hack
int menuBarHeight = 0;
QWidget *window = QApplication::activeWindow();
QTopLevelWindow *tw = qobject_cast<QTopLevelWindow*>(window);
if (tw) {
QMenuBar *menuBar = tw->menuBar();
menuBarHeight = menuBar->height();
}
QPoint screenPosition = window->mapToGlobal(QPoint(x, y+menuBarHeight));
setHoveredIndex(m_selectedIndex);
m_qmenu->popup(screenPosition, atAction);
}
void QtMenu::hidePopup()
{
m_qmenu->close();
}
QAction* QtMenu::action()
{
return m_qmenu->menuAction();
}
Q_INVOKABLE void QtMenu::clearMenuItems()
{
m_qmenu->clear();
foreach (QtMenuBase *item, m_qmenuItems) {
delete item;
}
m_qmenuItems.clear();
}
void QtMenu::addMenuItem(const QString &text)
{
QtMenuItem *menuItem = new QtMenuItem(this);
menuItem->setText(text);
m_qmenuItems.append(menuItem);
m_qmenu->addAction(menuItem->action());
connect(menuItem->action(), SIGNAL(triggered()), this, SLOT(emitSelected()));
connect(menuItem->action(), SIGNAL(hovered()), this, SLOT(emitHovered()));
if (m_qmenu->actions().size() == 1)
// Inform QML that the selected action (0) now has changed contents:
emit selectedIndexChanged();
}
void QtMenu::emitSelected()
{
QAction *act = qobject_cast<QAction *>(sender());
if (!act)
return;
m_selectedIndex = m_qmenu->actions().indexOf(act);
emit selectedIndexChanged();
}
void QtMenu::emitHovered()
{
QAction *act = qobject_cast<QAction *>(sender());
if (!act)
return;
m_highlightedIndex = m_qmenu->actions().indexOf(act);
emit hoveredIndexChanged();
}
QString QtMenu::itemTextAt(int index) const
{
QList<QAction *> actionList = m_qmenu->actions();
if (index >= 0 && index < actionList.size())
return actionList[index]->text();
else
return "";
}
QString QtMenu::modelTextAt(int index) const
{
if (QAbstractItemModel *model = qobject_cast<QAbstractItemModel*>(m_model.value<QObject*>())) {
return model->data(model->index(index, 0)).toString();
}
return "";
}
int QtMenu::modelCount() const
{
if (QAbstractItemModel *model = qobject_cast<QAbstractItemModel*>(m_model.value<QObject*>())) {
return model->rowCount();
}
return -1;
}
void QtMenu::append_qmenuItem(QDeclarativeListProperty<QtMenuBase> *list, QtMenuBase *menuItem)
{
QtMenu *menu = qobject_cast<QtMenu *>(list->object);
if (menu) {
menuItem->setParent(menu);
menu->m_qmenuItems.append(menuItem);
menu->qmenu()->addAction(menuItem->action());
}
}
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