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Re-fill empty cells in GridBagLayout


Re-fill empty cells in GridBagLayout

By : 191919
Date : November 18 2020, 03:49 PM
I think the issue was by ths following , Before remove the sub panel you can get the constraints using GridBagLayout's method
code :
public GridBagConstraints getConstraints(Component comp)


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GridBagLayout: how to fill all empty spaces

GridBagLayout: how to fill all empty spaces


By : BK SHARMA
Date : March 29 2020, 07:55 AM
like below fixes the issue you could set the layout of the container to BorderLayout (or something equivalent) and create an extra JPanel with the GridBagLayout and add it to the container
because of Borderlayout, the JPanel will take as much space as possible
GridBagLayout fill empty space

GridBagLayout fill empty space


By : user3660259
Date : March 29 2020, 07:55 AM
wish of those help I used GridBagLayout. I can't figure out how to stretch the Jbuttons to fill the entire panel. , Set the GridBagConstraints weight so the buttons are sized in Y axis
code :
c.weighty = 0.5;
How to fill Cells of GridbagLayout with the controls in Swing?

How to fill Cells of GridbagLayout with the controls in Swing?


By : Barbaros Yazkan
Date : March 29 2020, 07:55 AM
wish helps you I would suggest you can use nested panels with different layout managers to solve the problem.
The default layout of a frame is a BorderLayout.
code :
frame (which by default uses a BorderLayout)
--- CENTER
    panel using GrigBagLayout
        childPanel1
        childPanel2
        childPanel3
---- PAGE_END
    JScrollPane containing the JList
JList list = new JList(...);
list.setVisibleRowCount(5); 
JScrollPane scrollPane = new JScrollPane( list );
mainFrame.add(menubar,BorderLayout.NORTH);
mainFrame.setJMenuBar(menuBar);
How do you add empty cells to GridBagLayout?

How do you add empty cells to GridBagLayout?


By : Mujtaba Ali
Date : March 29 2020, 07:55 AM
Hope this helps GridBagLayout works off of what the first word entails; a grid. In order to achieve the effect you desire above, you actually need a 2x3 grid:
code :
        c1   | c2 |   c3
             |    |  
             v    v   
     |------------|
r1   |    B1      |  <S1>
     |------------|
---->
             |------------|
r2     <S2>  |    B2      |
             |------------|
comp    | x    | y    | w    | h
------------------------------------
B1      | 0    | 0    | 2    | 1
S1      | 2    | 0    | 1    | 1
S2      | 0    | 1    | 1    | 1
B2      | 1    | 1    | 2    | 1
public class StaggerTest {
  public static void main(String[] args) {
    JFrame frame = new JFrame("Stagger Test");
    frame.setSize(600, 600);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel panel = new JPanel(new GridBagLayout());

    placeComp(new JButton("1"), panel, 0, 0, 2, 1);
    placeComp(Box.createHorizontalStrut(10), panel, 2, 0, 1, 1);
    placeComp(Box.createHorizontalStrut(10), panel, 0, 1, 1, 1);
    placeComp(new JButton("2"), panel, 1, 1, 2, 1);

    frame.setContentPane(panel);

    frame.setVisible(true);
  }

  public static void placeComp(Component comp, JPanel panel, int x, int y, int w, int h) {
    GridBagConstraints cons = new GridBagConstraints();
    cons.gridx = x;
    cons.gridy = y;
    cons.gridwidth = w;
    cons.gridheight = h;
    panel.add(comp, cons);
  }
}
|-----------|
|  Button1  |
|-----------|
      |-----------|
      |  Button2  |
      |-----------|
            |-----------|
            |  Button3  |
            |-----------|
+-------MAIN PANEL----------+
| +------r1-----R1 PANEL---+|
| ||-----------|           ||
c1||  Button1  |           ||
| ||-----------|           ||
| +------------------------+|
| +---r1--------r2-R2 PANEL+|
| |       |-----------|    ||
c2|<STRUT>|  Button1  |    ||
| |       |-----------|    ||
| +------------------------+|
|  etc...                   |
+---------------------------+
GridBagLayout and empty cells

GridBagLayout and empty cells


By : aakarshak
Date : March 29 2020, 07:55 AM
around this issue Don't worry about empty cells. Leave them empty. There is absolutely no need to fill everything with unneeded components.
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