Thread: Displaying small buttons

Hello.
What did you mean by (1,2)?
You will be have to mention the width and height respectively. By doing so you are telling the JVM to set the width to 1 pixel and height to 2 pixels.
Thats a meaningless size.

Syed.

Originally Posted by syedbhai

You will be have to mention the width and height respectively. By doing so you are telling the JVM to set the width to 1 pixel and height to 2 pixels.
Thats a meaningless size.

Syed.

1 px wide and 2 px high are valid sizes for a component. (0, 0) is a valid size. The method does not deal with size in pixels, it takes a Dimension as the only parameter.

jps,
I just experimented with what you have said. Its incorrect.
I created one JButton object and added it to a JFrame object.
When I invoked setPreferredSize(new Dimension(1,2)) the button component didn't get displayed.
When I tried new Dimension(40,20) it got displayed.
Let me know if I am still wrong.

Syed.

/**TestButton.java */
 
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
 
public class TestButton extends JPanel implements ActionListener {
 
	private static final long	serialVersionUID	= 1L;
 
	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				TestButton tb = new TestButton();
				tb.createAndShowGUI();
			}
		});
	}
 
	public TestButton() {
		this.setPreferredSize(new Dimension(40, 40));
		String commandTesting = "testing";
		JButton button = new JButton(commandTesting);
		button.setPreferredSize(new Dimension(1,2));
		button.addActionListener(this);
		this.add(button);
	}
 
	public void createAndShowGUI() {
		JFrame frame = new JFrame("TestButton");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.add(this);
		frame.pack();
		frame.setLocationRelativeTo(null);
		frame.setVisible(true);
	}
 
	@Override
	public void actionPerformed(ActionEvent ae) {
		System.out.println(ae.getActionCommand());
	}
 
}

As small as 1 pixel by two pixels may be, it is still drawn, still present, and still functional.

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Off topic discussion moved to a new thread