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Suppress a warning in msvc 64bit builds...
Suppress a warning in msvc 64bit builds Using std:sort causes warning C4267 in 64bit msvc builds, because size_t and int are of different size. There should never be a case where list indexes grow so large that this causes problems, so just suppress the warning. Change-Id: I0e4904f88542178177afc51a82bbbd18b094eb32 Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>
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chart.cpp
63 lines | 1.9 KiB | text/x-c | CppLexer
/ examples / charts / zoomlinechart / chart.cpp
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Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 /****************************************************************************
**
Titta Heikkala
Update copyright year...
 r2688 ** Copyright (C) 2014 Digia Plc
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 ** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** This file is part of the Qt Enterprise Charts Add-on.
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 **
** $QT_BEGIN_LICENSE$
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 ** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "chart.h"
#include <QGesture>
#include <QGraphicsScene>
#include <QGraphicsView>
Chart::Chart(QGraphicsItem *parent, Qt::WindowFlags wFlags)
Miikka Heikkinen
Add Polar chart support...
 r2483 : QChart(QChart::ChartTypeCartesian, parent, wFlags)
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 {
// Seems that QGraphicsView (QChartView) does not grab gestures.
// They can only be grabbed here in the QGraphicsWidget (QChart).
grabGesture(Qt::PanGesture);
grabGesture(Qt::PinchGesture);
}
Chart::~Chart()
{
}
Jani Honkonen
zoomlinechart example: update docs and series data
 r1388 //![1]
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 bool Chart::sceneEvent(QEvent *event)
{
if (event->type() == QEvent::Gesture)
Jani Honkonen
more coding style fixes for examples...
 r2102 return gestureEvent(static_cast<QGestureEvent *>(event));
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 return QChart::event(event);
}
Jani Honkonen
more coding style fixes for examples...
 r2102 bool Chart::gestureEvent(QGestureEvent *event)
Jani Honkonen
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 r1187 {
if (QGesture *gesture = event->gesture(Qt::PanGesture)) {
QPanGesture *pan = static_cast<QPanGesture *>(gesture);
Miikka Heikkinen
Fix zoomlinechart x-axis pan direction...
 r2579 QChart::scroll(-(pan->delta().x()), pan->delta().y());
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 }
if (QGesture *gesture = event->gesture(Qt::PinchGesture)) {
QPinchGesture *pinch = static_cast<QPinchGesture *>(gesture);
if (pinch->changeFlags() & QPinchGesture::ScaleFactorChanged)
Jani Honkonen
zoomlinechart example: update docs and series data
 r1388 QChart::zoom(pinch->scaleFactor());
Jani Honkonen
Add gestures support for zoomlinechart example...
 r1187 }
return true;
}
Jani Honkonen
zoomlinechart example: update docs and series data
 r1388 //![1]