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 Right click on a chart |
| Posted by Nishant Sharma on Apr-04-2019 18:27 |
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Hi,
I am looking at the qtdemo/qtdemo application.
It has a file (hitspotdialog.cpp) which handles the image map (attached hereby)
When we click or right click an element of say any pie chart, then the hotsport dialog comes up.
I want to distinguish between a right click and a left click. How can I do that?
On left click I want to do some operation and on right click I want to show some menu.
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| Re: Right click on a chart |
| Posted by Peter Kwan on Apr-05-2019 00:27 |
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Hi Nishant,
In the qtdemo sample code, when the mouse is clicked, it calls OnChartViewer:
connect(chartViewers[i], SIGNAL(clicked(QMouseEvent*)), SLOT(onChartClicked(QMouseEvent*)));
In the OnChartViewer, it pops up the HotSpotDialog:
void QTDemo::onChartClicked(QMouseEvent *event)
{
... code to pop up HotSpotDialog
}
You can add code to check if the mouse button is left or right button and do different things, like:
void QTDemo::onChartClicked(QMouseEvent *event)
{
if (event->button()==Qt::RightButton)
{
... code to pop up HotSpotDialog
}
else
{
... code to do something else
}
}
Hope this can help.
Regards
Peter Kwan |
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(Nishant Sharma) 