Clash Royale CLAN TAG#URR8PPP

Issue with Java GridBagConstraints

For part of my personal project, I want to add a music player to my program. However when I try using the GridBagConstraintsLayout to make the 3 buttons (Play, Pause, and Stop) directly under the label, the layout just looks weird like the picture that I attached. I don't want to have the play button be really long. I want all 3 buttons to be equal length and directly under the label. Can someone help me with this and maybe post the code to help me? The picture to what I have now is attached and I also included some of my code.

panel = new JPanel(new GridBagLayout());
add(panel);
GridBagConstraints c = new GridBagConstraints();
label1 = new JLabel("This is the MaryLand State Song. After exiting, press enter");
c.gridx = 0;
c.gridy = 0;

panel.add(label1,c);
play = new JButton("Play");
c.gridx = 0;
c.gridy = 2;
c.fill = GridBagConstraints.HORIZONTAL;
panel.add(play,c);
pause = new JButton("Pause");
c.gridx = 1;
c.gridy = 2;
c.fill = GridBagConstraints.HORIZONTAL;
panel.add(pause,c);
stop = new JButton("Stop");
c.gridx = 2;
c.gridy = 2;
c.fill = GridBagConstraints.HORIZONTAL;
panel.add(stop,c);


2 Answers
2

. I don't want to have the play button be really long. I want all 3 buttons to be equal length and directly under the label.

You need the constraints for the label to span 3 cells.

Read the section from the Swing tutorial on How to Use GridBagLayout. You will need to use the gridwidth constraint when you add the label to the panel.

gridwidth

I want all 3 buttons to be equal length

The GrigBagLayout will display components at their preferred size. The default preferred size of each button will be slightly different because of the text of each button.

If you really want them all the same size, then you will need to create a panel using the GridLayout and add the 3 buttons to this panel. Then you would add the label and the panel to the GridbagLayout, so you would now only have two components in a single column so you don't need to worry about the gridwidth constraint.

hope this helps

GridBagLayout lay = new GridBagLayout();
// three columns with same weights
lay.columnWeights = new double 1,1,1;
panel = new JPanel(lay);
add(panel);

GridBagConstraints c = new GridBagConstraints();

label1 = new JLabel("This is the MaryLand State Song. After exiting, press enter");
c.gridx = 0; c.gridy = 0;
// make label span all next to last columns (cells)
c.gridwidth = GridBagConstraints.REMAINDER;

panel.add(label1,c);

c.gridwidth = GridBagConstraints.BOTH;
c.fill = GridBagConstraints.HORIZONTAL;

play = new JButton("Play");
c.gridx = 0; c.gridy = 1;
panel.add(play,c);
pause = new JButton("Pause");
c.gridx = 1; c.gridy = 1;
panel.add(pause,c);
stop = new JButton("Stop");
c.gridx = 2; c.gridy = 1;
panel.add(stop,c);


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