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package tim.prune.gui;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JComponent;
import javax.swing.JPanel;
/**
* Class to make it easier to use GridBagLayout
* for a two-column, non-equal-width layout
*/
public class GuiGridLayout
{
private GridBagLayout _layout = null;
private GridBagConstraints _constraints = null;
private JPanel _panel = null;
private int _x = 0;
private int _y = 0;
/**
* Constructor
* @param inPanel panel using layout
*/
public GuiGridLayout(JPanel inPanel)
{
_panel = inPanel;
_layout = new GridBagLayout();
_constraints = new GridBagConstraints();
_constraints.weightx = 1.0;
_constraints.weighty = 0.0;
_constraints.ipadx = 10;
_constraints.ipady = 1;
_constraints.insets = new Insets(1, 5, 1, 5);
// Apply layout to panel
_panel.setLayout(_layout);
}
/**
* Add the given component to the grid
* @param inComponent component to add
*/
public void add(JComponent inComponent)
{
_constraints.gridx = _x;
_constraints.gridy = _y;
_constraints.weightx = (_x==0?0.5:1.0);
// set anchor
_constraints.anchor = (_x == 0?GridBagConstraints.LINE_END:GridBagConstraints.LINE_START);
_layout.setConstraints(inComponent, _constraints);
// add to panel
_panel.add(inComponent);
// work out next position
_x++;
if (_x > 1) {
_x = 0;
_y++;
}
}
}
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