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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license 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 Digia nor the names of its contributors
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** may be used to endorse or promote products derived from this
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** software without specific prior written permission.
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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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** $QT_END_LICENSE$
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**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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****************************************************************************/
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#include "chartview.h"
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#include <QMouseEvent>
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ChartView::ChartView(QChart *chart, QWidget *parent) :
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QChartView(chart, parent), m_rubberBand(QRubberBand::Rectangle, this), m_chart(chart)
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{
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}
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void ChartView::mousePressEvent(QMouseEvent *event)
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{
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if (event->button() != Qt::LeftButton)
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return;
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m_origin = event->pos();
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m_rubberBand.setGeometry(QRect(m_origin, QSize()));
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m_rubberBand.show();
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event->accept();
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}
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void ChartView::mouseMoveEvent(QMouseEvent *event)
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{
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if (m_rubberBand.isVisible())
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m_rubberBand.setGeometry(QRect(m_origin, event->pos()).normalized());
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}
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void ChartView::mouseReleaseEvent(QMouseEvent *event)
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{
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if (event->button() == Qt::LeftButton && m_rubberBand.isVisible()) {
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m_rubberBand.hide();
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QRect rect = m_rubberBand.geometry();
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m_chart->zoomIn(rect);
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event->accept();
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}
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if (event->button() == Qt::RightButton) {
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m_chart->zoomOut();
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}
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}
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void ChartView::keyPressEvent(QKeyEvent *event)
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{
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switch (event->key()) {
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case Qt::Key_Plus:
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m_chart->zoomIn();
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break;
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case Qt::Key_Minus:
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m_chart->zoomOut();
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break;
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case Qt::Key_Left:
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m_chart->scrollLeft();
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break;
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case Qt::Key_Right:
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m_chart->scrollRight();
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break;
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case Qt::Key_Up:
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m_chart->scrollUp();
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break;
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case Qt::Key_Down:
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m_chart->scrollDown();
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break;
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default:
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QGraphicsView::keyPressEvent(event);
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break;
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}
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}
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