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Creating a custom JButton in Java


By : user73738
Date : July 28 2020, 06:00 PM
I wish this helpful for you When I was first learning Java we had to make Yahtzee and I thought it would be cool to create custom Swing components and containers instead of just drawing everything on one JPanel. The benefit of extending Swing components, of course, is to have the ability to add support for keyboard shortcuts and other accessibility features that you can't do just by having a paint() method print a pretty picture. It may not be done the best way however, but it may be a good starting point for you.
Edit 8/6 - If it wasn't apparent from the images, each Die is a button you can click. This will move it to the DiceContainer below. Looking at the source code you can see that each Die button is drawn dynamically, based on its value.
code :
enableInputMethods(true);   
addMouseListener(this);
public Dimension getPreferredSize()  
public Dimension getMinimumSize()  
public Dimension getMaximumSize()
public void paintComponent(Graphics g)


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Creating a custom button in Java with JButton


By : user2987520
Date : March 29 2020, 07:55 AM
To fix this issue You will have to extend JButton class not AbstractButton. Try the following things and you will get idea.
The first move is to subclass JButton.

Creating custom JButton from images containing transparent pixels


By : user3312983
Date : March 29 2020, 07:55 AM
hope this fix your issue Since there were good elements in multiple answers, but none of the answers were complete on their own, I'll answer my own question so other people that have the same problem can try something similar.
I created my buttons using a new class which extends JButton, with a new constructor that takes a BufferedImage as parameter instead of an icon. The reason for that is that when I did something like myButton.getIcon(), it would return an Icon, then I'd have to make various manipulations on it to make it a BufferedImage of the right size, and it ended up not working anyway because it seems like the first cast to Icon made it lose the alpha data in the pixels, so I couldn't check to see if the user was clicking on transparent pixels or not.
code :
public class MyButton extends JButton
{
   private BufferedImage bufImg;

   public MyButton(BufferedImage bufImg)
   {
      super(new ImageIcon(bufImg));
      this.bufImg = bufImg;
   }
 }
 public BufferedImage getBufImg()
    {
      BufferedImage newImg = new BufferedImage(getSize().getWidth(), getSize().getHeight(), BufferedImage.TYPE_INT_ARGB); //Create a new buffered image the right size
      Graphics2D g2d = newImg.createGraphics();
      g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

      g2d.drawImage(bufImg, 0, 0, getSize().getWidth(), getSize().getHeight(), null);
      g2d.dispose();

      return newImg;
    }
  private int clickAlphaValue(BufferedImage bufImg, int posX, int posY) 
  {
    int alpha;

    alpha = (bufImg.getRGB(posX, posY) >>24) & 0x000000FF; //Gets the bit that contains alpha information

    return alpha;
  }
myButton.addMouseListener(new MouseListener()
    {

    public void mouseClicked(MouseEvent e)
    {
    }

    public void mousePressed(MouseEvent e)
    {
    }

    public void mouseReleased(MouseEvent e)
    {
      if(clickAlphaValue(((myButton)e.getSource()).getBufImg(), e.getX(), e.getY()) != 0) //If alpha is not set to 0
        System.exit(0); //Or other things you want your button to do
    }

    public void mouseEntered(MouseEvent e)
    {
    }

    public void mouseExited(MouseEvent e)
    {
    }
  });

Java GUI, creating piano keys using JButton


By : AKASH GUJARATHI
Date : March 29 2020, 07:55 AM
will help you I'm not sure how you're laying out your buttons in the first place. I suggest you use JLayeredPane for the layout. With it, you specify z-index of each component - and it takes care of the rest. Have a look here: http://docs.oracle.com/javase/tutorial/uiswing/components/layeredpane.html#depth

Creating a custom JButton which surppress CustomTooltip


By : AngMic
Date : March 29 2020, 07:55 AM
I hope this helps you . To customize the behaviour of a component you should be overriding meethods, not creating a new instance of the class you are extending.
Something like:
code :
public class CButton extends JButton
{
    public CButton(String text, Icon icon)
    {
        super(text, icon);
    }

    @Override
    public JToolTip createToolTip()
    {
        JToolTip toolTip = super.createToolTip();
        toolTip.setForeground(Color.BLACK);
        toolTip.setBackground(Color.WHITE);
        toolTip.setFont(new Font("Arial", Font.PLAIN, 12));
        return toolTip;
    }
};

Java MouseListener creating a Button without JButton


By : user2967464
Date : March 29 2020, 07:55 AM
Hope this helps I want to create a pause screen for my mini-game. For that, you press the esc button, and a picture will appear with the buttons: Resume, Options and Exit. In my MouseInput-class, is the mousePressed method. I just want, that if I press the mouse at the location of the button, that something happens. I've already made the half, but I don't know the rest. The method would now only use a corner of the box.(Sorry if my english is bad) , the location should be a range not a point.
Example of range:
code :
if (mx >= 154 || mx<=200 && my >= 160 && my<= 200) {
    System.out.println("Resume");
}
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