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Home » Developing U++ » UppHub » GraphDraw/GraphCtrl
Re: GraphDraw/GraphCtrl [message #56886 is a reply to message #56871] Mon, 26 April 2021 12:50 Go to previous messageGo to previous message
Pradip is currently offline  Pradip
Messages: 109
Registered: February 2019
Location: India
Experienced Member
Hello Didier,

Another question, while trying to implement mouse click on data point:

	void CustomData_Job::PaintDataPoint(BufferPainter& dw, int scale, const CoordinateConverter* xCoordConv, const CoordinateConverter* yCoordConv ) const
	{
		const TypeScreenCoord left = xCoordConv->toScreen(rectGraphBound.left);
		const TypeScreenCoord right = xCoordConv->toScreen(rectGraphBound.right);
		const TypeScreenCoord bottom = yCoordConv->toScreen(rectGraphBound.top);
		const TypeScreenCoord top = yCoordConv->toScreen(rectGraphBound.bottom);
		Rect r(left,top, right, bottom);
		r.Normalize();
		ChPaint(dw, r, rectStyle);
		if (isSelected) {
			DrawFrame(dw, r, Cyan());
		}
	}

	bool SimpleJobSerie::LeftDown (unsigned int pIndex, PointGraph p, dword keyflags) {
		data[pIndex].isSelected = !(data[pIndex].isSelected);
		return true;
	}

Here, the Cyan frame isn't drawn when mouse is clicked, it's only drawn at the time of next repaint. What to do?


Regards,
Pradip

[Updated on: Tue, 27 April 2021 08:20]

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