A swing/awt component that looks like a LED

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Jürgen Gerstacker - 15 Dec 2006 15:54 GMT

Hi,
I want to create LED (light emitting diodes) inside a panel, or
rectangulars that can be given any color at any time. What is the best
solution? java.awt.Canvas?

Juergen

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Thomas Fritsch - 15 Dec 2006 17:55 GMT

Jürgen Gerstacker schrieb:

> I want to create LED (light emitting diodes) inside a panel, or
> rectangulars that can be given any color at any time. What is the best
> solution? java.awt.Canvas?

If using AWT (without Swing):
extend Canvas, override method paint(Graphics).
If using Swing:
extend JComponent, override method paintComponent(Graphics).

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Thomas

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Jürgen Gerstacker - 17 Dec 2006 09:26 GMT

> Jürgen Gerstacker schrieb:
> > I want to create LED (light emitting diodes) inside a panel, or
[quoted text clipped - 7 lines]
> --
> Thomas

A few minutes after I had posted I found a solution, that's the reason
I deleted the original post.

pan_swi[i]=new JPanel();
pan_swi[i].setPreferredSize(dim1);
pan_swi[i].setBackground(Color.black);
...
pan_swi[i].setBackground(Color.red);

Thank you for your solutions, I will try them

Juergen

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