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Thread: JButtons Disappearing

  1. #1
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    Default JButtons Disappearing

    I'm using a GridBagLayout to align these buttons to the left(WEST) side of the screen. Although i have come across a problem where only one button shows up, the grassTile button. I've tried different positions for the JPanel but nothing seems to work.

    What's wrong?


                    // Grass Tile
    		final JButton grassTile = new JButton();
    		grassTile.setIcon(new ImageIcon("res/grass.png"));
    		grassTile.setVisible(true);
    		grassTile.addActionListener(new grassTile());
    		grassTile.setMargin(new Insets(0, 0, 0, 0));
    		grassTile.setBorder(null);
    		c.gridx = 0; c.gridy = 3;
    		guiPanel.add(grassTile, c);
     
    		// Stone Tile
    		ImageIcon stone = new ImageIcon("res/stone.png");
    		JButton stoneTile = new JButton(stone);
    		c.gridx = 0; c.gridy = 4;
    		stoneTile.addActionListener(new stoneTile());
    		stoneTile.setMargin(new Insets(0, 0, 0, 0));
    		stoneTile.setBorder(null);
    		guiPanel.add(stoneTile, c);
     
    		// Floor Tile
    		ImageIcon floor = new ImageIcon("res/floor.png");
    		JButton floorTile = new JButton(floor);
    		c.gridx = 0; c.gridy = 5;
    		floorTile.addActionListener(new floorTile());
    		floorTile.setMargin(new Insets(0, 0, 0, 0));
    		floorTile.setBorder(null);
    		guiPanel.add(floorTile, c);


  2. #2
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    Default Re: JButtons Disappearing

    Can you post an MCVE that demonstrates the behavior? Note that this shouldn't be your whole project, but it should be complete enough so we can see the problem. Start a new project and only add enough code to repeat the problem.
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  3. #3
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    Default Re: JButtons Disappearing

    The image files are in the correct place and the buttons that aren't showing are the ones with images.

    package test2;
     
    import java.awt.BorderLayout;
    import java.awt.Color;
    import java.awt.GridBagConstraints;
    import java.awt.GridBagLayout;
    import java.awt.Insets;
     
    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
     
    public class problem {
     
    	public static int width = 1280;
    	public static int height = width / 16 * 9;
    	public static int size = width * height;
     
    	public static void main(String[] args) {
    		createFrameAndPanels();
    	}
     
    	public static void createFrameAndPanels() {
    		JFrame frame = new JFrame("problem");
    		frame.setVisible(true);
    		frame.setSize(width,height);
    		frame.setResizable(false); 
    		frame.setLocationRelativeTo(null);
    		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     
    		// Level Panel
    		JPanel levelPanel = new JPanel(new GridBagLayout());
    		frame.add(levelPanel);
    		levelPanel.setBackground(Color.BLACK);
     
    		// GUI Panel
    		JPanel guiPanel = new JPanel(new GridBagLayout());
    		frame.getContentPane().add(guiPanel, BorderLayout.WEST);
     
    		GridBagConstraints c = new GridBagConstraints();
    		c.insets = new Insets(3, 3, 3, 3);
     
    		JButton button1 = new JButton("button1");
    		c.gridx = 0; c.gridy = 0;
    		guiPanel.add(button1, c);
     
    		JButton button2 = new JButton("button2");
    		c.gridx = 0; c.gridy = 1;
    		guiPanel.add(button2, c);
     
    		JButton button3 = new JButton("button3");
    		c.gridx = 0; c.gridy = 2;
    		guiPanel.add(button3, c);
     
    		// Grass Tile
    		final JButton grassTile = new JButton();
    		grassTile.setIcon(new ImageIcon("/scr/grass.png"));
    		grassTile.setVisible(true);
    		grassTile.setMargin(new Insets(0, 0, 0, 0));
    		grassTile.setBorder(null);
    		c.gridx = 0; c.gridy = 3;
    		guiPanel.add(grassTile, c);
     
    		// Stone Tile
    		ImageIcon stone = new ImageIcon("/scr/stone.png");
    		JButton stoneTile = new JButton(stone);
    		c.gridx = 0; c.gridy = 4;
    		stoneTile.setMargin(new Insets(0, 0, 0, 0));
    		stoneTile.setBorder(null);
    		guiPanel.add(stoneTile, c);
     
    		// Floor Tile
    		ImageIcon floor = new ImageIcon("/scr/floor.png");
    		JButton floorTile = new JButton(floor);
    		c.gridx = 0; c.gridy = 5;
    		floorTile.setMargin(new Insets(0, 0, 0, 0));
    		floorTile.setBorder(null);
    		guiPanel.add(floorTile, c);
    	}
    }

    Is that what you were looking for?

  4. #4
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    Default Re: JButtons Disappearing

    The code basically works for me. I changed the width to 800 and the image locations to my folder:
          grassTile.setIcon(new ImageIcon("http://www.javaprogrammingforums.com/images/duke.gif")); // "/scr/grass.png"));

    images is a folder in the current directory when the code is executed.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: JButtons Disappearing

    I did it and double checked the file path and i am still getting this. It's the exact same on mac and pc!

    Screen Shot 2014-09-19 at 5.42.33 am.jpg

  6. #6
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    Default Re: JButtons Disappearing

    To see where the computer is looking for the image, create a File object with the path to the image that you are using and print out the value of that File object's absolute path.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: JButtons Disappearing

    I probably should have said this earlier, but when i first did this on my pc the first image worked and displayed. The others had the same path but didn't show up, that's the problem. It's almost like they're out of bounds and don't fit in the seeable area!

  8. #8
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    Default Re: JButtons Disappearing

    Try it with images that fit.
    If you don't understand my answer, don't ignore it, ask a question.

  9. #9
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    Default Re: JButtons Disappearing

    The images are 32x32. Even when i take out the 3 visible buttons (button1, button2, button3), they still don't show up.

  10. #10
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    Default Re: JButtons Disappearing

    The code works for me.
    What printed when you used the File object I suggested in post#6?
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