/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.purl.sword.client;
import java.awt.Component;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JPanel;
/**
* Utility class. Creates a two column form. The left column is used to show
* the label for the row. The right column is used to show the control, e.g.
* text box, combo box or checkbox, for the row.
*
* @author Neil Taylor
*/
public class SWORDFormPanel extends JPanel
{
/**
* Constraints used to control the layout on the panel.
*/
private GridBagConstraints labelConstraints;
/**
* Constraints used to control the layout of the input controls on the panel.
*/
private GridBagConstraints controlConstraints;
/**
* Index to the next row.
*/
private int rowIndex = 0;
/**
* Insets for the top row of the label column.
*/
private Insets labelTop = new Insets(10, 10, 0, 0);
/**
* Insets for the top row of the control column.
*/
private Insets controlTop = new Insets(10, 4, 0, 10);
/**
* Insets for a general row in the label column.
*/
private Insets labelGeneral = new Insets(3, 10, 0, 0);
/**
* Insets for a general row in the control column.
*/
private Insets controlGeneral = new Insets(3, 4, 0, 10);
/**
* Create a new instance of the class.
*/
public SWORDFormPanel()
{
super();
setLayout(new GridBagLayout());
labelConstraints = new GridBagConstraints();
labelConstraints.fill = GridBagConstraints.NONE;
labelConstraints.anchor = GridBagConstraints.LINE_END;
labelConstraints.weightx = 0.1;
controlConstraints = new GridBagConstraints();
controlConstraints.fill = GridBagConstraints.HORIZONTAL;
controlConstraints.weightx = 0.9;
}
/**
* Add the specified component as the first row. It will occupy two
* columns.
*
* @param one The control to add.
*/
public void addFirstRow(Component one)
{
addRow(one, null, labelTop, controlTop);
}
/**
* Add the specified components as the first row in the form.
* @param one The label component.
* @param two The control component.
*/
public void addFirstRow(Component one, Component two)
{
addRow(one, two, labelTop, controlTop);
}
/**
* Add a component to the general row. This will be added in the label column.
* @param one The component.
*/
public void addRow(Component one)
{
addRow(one, null);
}
/**
* Add a component to the general row.
* @param one The component to add to the label column.
* @param two The component to add to the control column.
*/
public void addRow(Component one, Component two)
{
addRow(one, two, labelGeneral, controlGeneral);
}
/**
* Add a row to the table.
*
* @param one The component to display in the label column.
* @param two The component to display in the control column.
* @param labels The insets for the label column.
* @param controls The insets for the controls column.
*/
protected void addRow(Component one, Component two, Insets labels, Insets controls )
{
labelConstraints.insets = labels;
labelConstraints.gridx = 0;
labelConstraints.gridy = rowIndex;
if ( two == null )
{
labelConstraints.gridwidth = 2;
}
else
{
labelConstraints.gridwidth = 1;
}
add(one, labelConstraints);
if ( two != null )
{
controlConstraints.insets = controls;
controlConstraints.gridx = 1;
controlConstraints.gridy = rowIndex;
add(two, controlConstraints);
}
rowIndex++;
}
}