3d67793a9e
Changed signals and slots to new syntax, used nullptr and replaced foreach with new C++11 range based for loops. Also fixed a few minor flaws. Task-number: QTBUG-60633 Change-Id: Ice4030133971912f96752d9d84c638c70fd73e35 Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io> Reviewed-by: André Hartmann <aha_1980@gmx.de> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
133 lines
4.0 KiB
C++
133 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "imageitem.h"
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//! [0]
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ImageItem::ImageItem(int id, const QPixmap &pixmap, QGraphicsItem *parent)
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: QGraphicsPixmapItem(pixmap, parent)
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{
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recordId = id;
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setAcceptHoverEvents(true);
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timeLine.setDuration(150);
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timeLine.setFrameRange(0, 150);
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connect(&timeLine, &QTimeLine::frameChanged, this, &ImageItem::setFrame);
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connect(&timeLine, &QTimeLine::finished, this, &ImageItem::updateItemPosition);
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adjust();
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}
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//! [0]
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//! [1]
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void ImageItem::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/)
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{
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timeLine.setDirection(QTimeLine::Forward);
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if (z != 1.0) {
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z = 1.0;
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updateItemPosition();
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}
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if (timeLine.state() == QTimeLine::NotRunning)
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timeLine.start();
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}
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//! [1]
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//! [2]
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void ImageItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/)
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{
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timeLine.setDirection(QTimeLine::Backward);
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if (z != 0.0)
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z = 0.0;
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if (timeLine.state() == QTimeLine::NotRunning)
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timeLine.start();
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}
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//! [2]
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//! [3]
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void ImageItem::setFrame(int frame)
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{
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adjust();
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QPointF center = boundingRect().center();
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setTransform(QTransform::fromTranslate(center.x(), center.y()), true);
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setTransform(QTransform::fromScale(1 + frame / 330.0, 1 + frame / 330.0), true);
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setTransform(QTransform::fromTranslate(-center.x(), -center.y()), true);
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}
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//! [3]
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//! [4]
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void ImageItem::adjust()
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{
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QMatrix matrix;
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matrix.scale(120/ boundingRect().width(), 120/ boundingRect().height());
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setMatrix(matrix);
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}
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//! [4]
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//! [5]
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int ImageItem::id() const
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{
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return recordId;
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}
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//! [5]
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//! [6]
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void ImageItem::updateItemPosition()
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{
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setZValue(z);
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}
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//! [6]
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