CODEWITHSUNDEEP
javaswingrepaint
Madeyedexter
Madeyedexter

Reputation: 1193

Unexpected result when returning from JDialog

I have a JFrame with a JPanel in it. This JPanel is essentially a drawing panel. I am showing a JDialog to enter various parameters like radius and position to draw a circle. For showing JDialog i am using:

SwingUtilities.invokeLater(new Runnable()
{
    public void run()
    {
      dialog.setVisible(true);
    }
});

When the user presses the draw button on the jdialog, i dispose it (dialog.dispose();) and draw the circle based on the parameters entered by the user in Jdialog immediately after disposing.

The Circle draws but the JDialog also gets drawn erroneously. I am using repaint() call to draw the Circle. The painting gives desired result after i minimize and maximize the window:

enter image description here

Am i closing the Dialog in a wrong way?

Upvotes: 0

Views: 64

Answers (1)

Reimeus
Reimeus

Reputation: 159864

Ensure

super.paintComponent();

is invoked when overriding paintComponent when doing custom painting in Swing. This call will correctly paint the custom paint area. Without this call, background components will remain visible

Upvotes: 2

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