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Fix resetting animation options mid-animation....
Fix resetting animation options mid-animation. Setting animation options while animations were running could cause crash if layout in old animation didn't match the current layout, as animation options setting didn't destroy or stop old animations when it created new ones. Change-Id: If45ee8daf3facd49ce7dd127bb37678a31e6a2d3 Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Miikka Heikkinen - - Load All Authors

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r2433:4d17a12f375e
r2555:8f0e18a7e02c
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chartview.cpp
100 lines | 2.7 KiB | text/x-c | CppLexer
/ examples / zoomlinechart / chartview.cpp
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Michal Klocek
Add missing files from zoomchart example
 r749 /****************************************************************************
Jani Honkonen
Add/modify license headers
 r830 **
Miikka Heikkinen
More copyright year changes
 r2433 ** Copyright (C) 2013 Digia Plc
Jani Honkonen
Add/modify license headers
 r830 ** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
Michal Klocek
Add missing files from zoomchart example
 r749
#include "chartview.h"
#include <QMouseEvent>
ChartView::ChartView(QChart *chart, QWidget *parent) :
Jani Honkonen
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 r1187 QChartView(chart, parent),
m_isTouching(false)
Michal Klocek
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 r749 {
Jani Honkonen
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 r1187 setRubberBand(QChartView::RectangleRubberBand);
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 r749 }
Jani Honkonen
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 r1187 bool ChartView::viewportEvent(QEvent *event)
Michal Klocek
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 r749 {
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 r1187 if (event->type() == QEvent::TouchBegin) {
// By default touch events are converted to mouse events. So
// after this event we will get a mouse event also but we want
// to handle touch events as gestures only. So we need this safeguard
// to block mouse events that are actually generated from touch.
m_isTouching = true;
Michal Klocek
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 r749
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 // Turn off animations when handling gestures they
// will only slow us down.
chart()->setAnimationOptions(QChart::NoAnimation);
}
return QChartView::viewportEvent(event);
}
Michal Klocek
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 r749
Jani Honkonen
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 r1187 void ChartView::mousePressEvent(QMouseEvent *event)
{
if (m_isTouching)
return;
QChartView::mousePressEvent(event);
Michal Klocek
Add missing files from zoomchart example
 r749 }
void ChartView::mouseMoveEvent(QMouseEvent *event)
{
Jani Honkonen
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 r1187 if (m_isTouching)
return;
QChartView::mouseMoveEvent(event);
Michal Klocek
Add missing files from zoomchart example
 r749 }
void ChartView::mouseReleaseEvent(QMouseEvent *event)
{
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 if (m_isTouching)
m_isTouching = false;
Michal Klocek
Add missing files from zoomchart example
 r749
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 // Because we disabled animations when touch event was detected
// we must put them back on.
chart()->setAnimationOptions(QChart::SeriesAnimations);
Michal Klocek
Add missing files from zoomchart example
 r749
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 QChartView::mouseReleaseEvent(event);
Michal Klocek
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 r749 }
Tero Ahola
Tuning zoom example (key zooming was removed from QChartView)
 r966 //![1]
Michal Klocek
Add missing files from zoomchart example
 r749 void ChartView::keyPressEvent(QKeyEvent *event)
{
switch (event->key()) {
case Qt::Key_Plus:
Jani Honkonen
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 r1187 chart()->zoomIn();
Michal Klocek
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 r749 break;
case Qt::Key_Minus:
Jani Honkonen
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 r1187 chart()->zoomOut();
Michal Klocek
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 r749 break;
Tero Ahola
Tuning zoom example (key zooming was removed from QChartView)
 r966 //![1]
Michal Klocek
Add missing files from zoomchart example
 r749 case Qt::Key_Left:
Jani Honkonen
coding style fixes for examples
 r2098 chart()->scroll(-10, 0);
Michal Klocek
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 r749 break;
case Qt::Key_Right:
Jani Honkonen
coding style fixes for examples
 r2098 chart()->scroll(10, 0);
Michal Klocek
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 r749 break;
case Qt::Key_Up:
Jani Honkonen
coding style fixes for examples
 r2098 chart()->scroll(0, 10);
Michal Klocek
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 r749 break;
case Qt::Key_Down:
Jani Honkonen
coding style fixes for examples
 r2098 chart()->scroll(0, -10);
Michal Klocek
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 r749 break;
default:
QGraphicsView::keyPressEvent(event);
break;
}
}