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Groups > comp.lang.java.gui > #5417

RE: Layout only works after moving a frame

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Had the same problem with a jpanel that gets dynamically resized. 

In the end this is what worked for me (you have to extend the class and enable the force refresh each time you resize):

package util.graphics;

import java.awt.Graphics;
import javax.swing.JPanel;

/**
 *
 * @author Earl Bosch
 *
 */
public abstract class JPanelDynamic extends JPanel {

    public boolean forceValidate;

    public boolean getForceValidate() {
        return forceValidate;
    }

    public void enableForceValidate() {
        forceValidate=true;
    }

    public void disableForceValidate() {
        forceValidate=false;
    }

    public void toggleForceValidate() {
        forceValidate=!forceValidate;
    }

    @Override
    protected void paintChildren(Graphics pGraphics) {
        synchronized (getTreeLock()) {
            if (forceValidate) {
                revalidate();
                forceValidate=false;
            }
            super.paintChildren(pGraphics);
        }
    }

}

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RE: Layout only works after moving a frame earlb71 <earlb71@gmail.com> - 2014-02-09 11:30 -0600

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