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/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Itemviews NG project on Trolltech Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 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 GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtGui>
#include <qgraphicslistview.h>
#include <qgraphicsgridview.h>
#include <qlistdefaultmodel.h>
#include <qlistselectionmanager.h>
#include <qkineticlistcontroller.h>
#include <qpropertyanimation.h>
class Photo : public QtGraphicsListViewItem
{
public:
Photo(int index, QtGraphicsListView *view);
QSizeF sizeHint(int index, const QStyleOptionViewItemV4 *option, Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
};
Photo::Photo(int index, QtGraphicsListView *view)
: QtGraphicsListViewItem(index, view)
{
}
QSizeF Photo::sizeHint(int index, const QStyleOptionViewItemV4 *option, Qt::SizeHint which, const QSizeF &constraint) const
{
Q_UNUSED(option);
Q_UNUSED(index);
Q_UNUSED(constraint);
switch (which) {
case Qt::MinimumSize:
return QSizeF(1, 1);
case Qt::PreferredSize:
return QSizeF(640, 480).boundedTo(constraint);
case Qt::MaximumSize:
return constraint;
default:
break;
}
return QSize();
}
void Photo::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(widget);
const QPixmap pixmap = qvariant_cast<QPixmap>(data().value(Qt::DecorationRole));
const QSizeF bounded = pixmap.size().boundedTo(option->rect.size());
QSizeF scaled = pixmap.size();
scaled.scale(bounded, Qt::KeepAspectRatio);
const QRectF aligned = QStyle::alignedRect(option->direction, Qt::AlignCenter, scaled.toSize(), option->rect);
painter->drawPixmap(aligned, pixmap, pixmap.rect());
}
class Switcher : public QObject
{
Q_OBJECT
public:
Switcher(QtGraphicsGridView *grid, QtGraphicsListView *list, QObject *parent = 0)
: QObject(parent), grid(grid), list(list), photo(0) { animation.setPropertyName("geometry"); }
~Switcher() {}
public slots:
void gridItemClicked(int index) {
grid->hide();
list->setHorizontalOffset(index * list->size().width()); // ### ensure visible
list->show();
// ### start animation
}
void listItemClicked(int index) {
Q_UNUSED(index);
list->hide();
grid->setHorizontalOffset(0);
grid->show();
// ### start animation
}
private:
QtGraphicsGridView *grid;
QtGraphicsListView *list;
Photo *photo;
QPropertyAnimation animation;
};
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QGraphicsView widget;
widget.setScene(new QGraphicsScene(&widget));
widget.resize(QSize(640, 480));
widget.scene()->setSceneRect(0, 0, 640, 480);
// data
QtListDefaultModel *model = new QtListDefaultModel(&widget);
QtListDefaultItem *item = new QtListDefaultItem;
item->setData(QPixmap(":images/go.jpg"), Qt::DecorationRole);
model->appendItem(item);
item = new QtListDefaultItem;
item->setData(QPixmap(":images/contrast.jpg"), Qt::DecorationRole);
model->appendItem(item);
item = new QtListDefaultItem;
item->setData(QPixmap(":images/nightfall.jpg"), Qt::DecorationRole);
model->appendItem(item);
item = new QtListDefaultItem;
item->setData(QPixmap(":images/flower.jpg"), Qt::DecorationRole);
model->appendItem(item);
item = new QtListDefaultItem;
item->setData(QPixmap(":images/beach.jpg"), Qt::DecorationRole);
model->appendItem(item);
// selections
QtListSelectionManager *selections = new QtListSelectionManager(&widget);
// views and controllers
QtGraphicsListView *listView = new QtGraphicsListView(Qt::Horizontal);
QtKineticListController *listController = new QtKineticListController(&widget);
listView->setItemCreator(new QtGraphicsListViewItemCreator<Photo>());
listView->setGeometry(0, 0, 640, 480);
listView->setFlag(QGraphicsItem::ItemClipsChildrenToShape, true);
listController->setView(listView);
listController->setModel(model);
listController->setSelectionManager(selections);
listController->setHorizontalOvershootEnabled(true);
listController->setCenterOnItemEnabled(true);
QtGraphicsGridView *gridView = new QtGraphicsGridView(4, Qt::Vertical);
QtKineticListController *gridController = new QtKineticListController(&widget);
gridView->setItemCreator(new QtGraphicsListViewItemCreator<Photo>());
gridView->setGeometry(0, 0, 640, 480);
//gridView->setFlag(QGraphicsItem::ItemClipsChildrenToShape, true); // ###
gridView->hide();
gridController->setView(gridView);
gridController->setModel(model);
gridController->setSelectionManager(selections);
gridController->setVerticalOvershootEnabled(true);
Switcher switcher(gridView, listView);
QObject::connect(listController, SIGNAL(itemClicked(int, Qt::MouseButton)),
&switcher, SLOT(listItemClicked(int)));
QObject::connect(gridController, SIGNAL(itemClicked(int, Qt::MouseButton)),
&switcher, SLOT(gridItemClicked(int)));
widget.setBackgroundBrush(Qt::black);
widget.scene()->addItem(listView);
widget.scene()->addItem(gridView);
widget.show();
return app.exec();
}
#include "main.moc"
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