Mimicking a JButton Click

[Tim Alvord]

Hi,
I have calss JPButton that extends JButton. It basically is a graphical button that shifts 1 pixel to the right and down when mousePressed(), and shifts back when mouseReleased(). Both of those functions are Overriden obviously. The question I have is that I'm trying to have a keypress mimick the Mouse action. I attempted to do this by Overriding doClick(). Doesn't seem to work. Is there a preferred way to do this?

	public void doClick()
	{
		if (isEnabled())
		{
			MouseEvent me = new MouseEvent(this, 0, 0, 0, 25, 25, 1, false);
			
			mousePressed(me);
			try
			{
				Thread.sleep(500L);
			}
			catch (InterruptedException e)
			{
				e.printStackTrace();
			}
			mouseReleased(me);
		}
	}
	@Override
	public void mousePressed(MouseEvent e)
	{
		if (isEnabled())
		{
			setBounds(getBounds().x+1,getBounds().y+1,getWidth(), getHeight());
			repaint();
		}
	}

	@Override
	public void mouseReleased(MouseEvent e)
	{
		if (isEnabled())
		{
			setBounds(getBounds().x-1,getBounds().y-1,getWidth(), getHeight());
			repaint();
		}
	}

[Michael Dunn]

you move all of the code from inside mousePressed/released/whatever to separate methods,
called from mousePressed/released/whatever. Those methods can now be called from your
keyListener methods.

[Tim Alvord]

Michael,
Did that. Same result. It executes the code, but the button doesn't move when called from doClick()...

	public void doButtonDown()
	{
		setBounds(getBounds().x+1,getBounds().y+1,getWidth(), getHeight());
		repaint();
	}
	
	public void doButtonUp()
	{
		setBounds(getBounds().x-1,getBounds().y-1,getWidth(), getHeight());
		repaint();
	}
	
	@Override
	public void doClick()
	{
		if (isEnabled())
		{
			doButtonDown();
			try
			{
				Thread.sleep(500L);
			}
			catch (InterruptedException e)
			{
				e.printStackTrace();
			}
			doButtonUp();
		}
	}
	@Override
	public void mousePressed(MouseEvent e)
	{
		if (isEnabled())
		{
			doButtonDown();
		}
	}

	@Override
	public void mouseReleased(MouseEvent e)
	{
		if (isEnabled())
		{
			doButtonUp();
		}
	}

[Michael Dunn]

Thread.sleep(500L);

will block any painting/listening - use a Swing.Timer for delay purposes

[Tim Alvord]

Michael,
Got it to work by doing the following:

	@Override
	public void doClick()
	{
		if (isEnabled())
		{
			setBounds(getBounds().x+1,getBounds().y+1,getWidth(), getHeight());
	        paintImmediately(0,0,getWidth(), getHeight());
	        try {
	            Thread.currentThread();
				Thread.sleep(100);
	        } catch(InterruptedException ie) {
	        }
			setBounds(getBounds().x-1,getBounds().y-1,getWidth(), getHeight());
	        paintImmediately(0,0,getWidth(), getHeight());
		}
	}

	@Override
	public void mousePressed(MouseEvent e)
	{
		if (isEnabled())
		{
			setBounds(getBounds().x+1,getBounds().y+1,getWidth(), getHeight());
			repaint();
		}
	}

	@Override
	public void mouseReleased(MouseEvent e)
	{
		if (isEnabled())
		{
			setBounds(getBounds().x-1,getBounds().y-1,getWidth(), getHeight());
			repaint();
		}
	}