e724fd4710
QtWidgets/Drill Down example uses images and information about Nokia's
old office locations as content. This change updates the example to
use concepts related to Qt instead.
In addition,
- Documentation, screenshot updated accordingly
- Corrected aspect ratio when scaling image items in the scene
- Added a gray background with a slight gradient
- Removed Symbian-specific code remnant
Task-number: QTBUG-31075
Change-Id: Id8abfbf7f4033f74172477570f8f28390854101c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
|
|
** Contact: http://www.qt-project.org/legal
|
|
**
|
|
** This file is part of the examples of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** You may use this file under the terms of the BSD license as follows:
|
|
**
|
|
** "Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** distribution.
|
|
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
|
|
** of its contributors may be used to endorse or promote products derived
|
|
** from this software without specific prior written permission.
|
|
**
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include "imageitem.h"
|
|
|
|
//! [0]
|
|
ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent)
|
|
: QGraphicsPixmapItem(pixmap, parent)
|
|
{
|
|
recordId = id;
|
|
setAcceptHoverEvents(true);
|
|
|
|
timeLine.setDuration(150);
|
|
timeLine.setFrameRange(0, 150);
|
|
|
|
connect(&timeLine, SIGNAL(frameChanged(int)), this, SLOT(setFrame(int)));
|
|
connect(&timeLine, SIGNAL(finished()), this, SLOT(updateItemPosition()));
|
|
|
|
adjust();
|
|
}
|
|
//! [0]
|
|
|
|
//! [1]
|
|
void ImageItem::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/)
|
|
{
|
|
timeLine.setDirection(QTimeLine::Forward);
|
|
|
|
if (z != 1.0) {
|
|
z = 1.0;
|
|
updateItemPosition();
|
|
}
|
|
|
|
if (timeLine.state() == QTimeLine::NotRunning)
|
|
timeLine.start();
|
|
}
|
|
//! [1]
|
|
|
|
//! [2]
|
|
void ImageItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/)
|
|
{
|
|
timeLine.setDirection(QTimeLine::Backward);
|
|
if (z != 0.0)
|
|
z = 0.0;
|
|
|
|
if (timeLine.state() == QTimeLine::NotRunning)
|
|
timeLine.start();
|
|
}
|
|
//! [2]
|
|
|
|
//! [3]
|
|
void ImageItem::setFrame(int frame)
|
|
{
|
|
adjust();
|
|
QPointF center = boundingRect().center();
|
|
|
|
setTransform(QTransform::fromTranslate(center.x(), center.y()), true);
|
|
setTransform(QTransform::fromScale(1 + frame / 330.0, 1 + frame / 330.0), true);
|
|
setTransform(QTransform::fromTranslate(-center.x(), -center.y()), true);
|
|
}
|
|
//! [3]
|
|
|
|
//! [4]
|
|
void ImageItem::adjust()
|
|
{
|
|
QMatrix matrix;
|
|
matrix.scale(120/ boundingRect().width(), 120/ boundingRect().height());
|
|
setMatrix(matrix);
|
|
}
|
|
//! [4]
|
|
|
|
//! [5]
|
|
int ImageItem::id()
|
|
{
|
|
return recordId;
|
|
}
|
|
//! [5]
|
|
|
|
//! [6]
|
|
void ImageItem::updateItemPosition()
|
|
{
|
|
setZValue(z);
|
|
}
|
|
//! [6]
|
|
|
|
|