GraphImportDialog.java

package agg.gui.treeview.dialog;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Vector;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JCheckBox;
import javax.swing.border.TitledBorder;

@SuppressWarnings("serial")
public class GraphImportDialog extends JDialog implements ActionListener {

	private final JPanel contentPane;

	private final JPanel panel;

	private final JPanel itemPanel;

	private final JPanel buttonPanel;

	private final JScrollPane scrollPane;

	private final Vector<String> itemNames;

	private final Vector<String> result;

	private final Vector<JCheckBox> checkBox;

	private final JButton allItemsButton;

	private final JButton closeButton;

	private final JButton cancelButton;

//	private boolean isCancelled;

	private boolean singleSelection;
	
	
	public GraphImportDialog(JFrame parent, String title,
			Vector<String> itemNames, boolean singleSelection) {
		super(parent, true);
		this.itemNames = itemNames;
		this.singleSelection = singleSelection;
		
		this.result = new Vector<String>();

		setTitle(title);
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent evt) {
				setVisible(false);
				dispose();
			}
		});
		if (parent != null)
			setLocationRelativeTo(parent);
		else
			setLocation(300, 100);

		this.checkBox = new Vector<JCheckBox>();

		this.contentPane = new JPanel(new BorderLayout());
		this.contentPane.setBackground(Color.lightGray);

		this.panel = new JPanel(new BorderLayout());
		this.panel.setBorder(new TitledBorder(" Please select an item "));

		this.itemPanel = new JPanel(new GridLayout(itemNames.size(), 1));
		ButtonGroup group = new ButtonGroup();
		for (int i = 0; i < itemNames.size(); i++) {
			String name = itemNames.get(i);
			JCheckBox cb = new JCheckBox(name, null, false);
			cb.addActionListener(this);
			
			if (this.singleSelection)
				group.add(cb);
			
			this.checkBox.addElement(cb);
			this.itemPanel.add(cb);
		}

		this.scrollPane = new JScrollPane(this.itemPanel);
		this.scrollPane.setPreferredSize(new Dimension(100, 150));
		this.panel.add(this.scrollPane, BorderLayout.CENTER);
		
		this.allItemsButton = new JButton();
		this.allItemsButton.setActionCommand("allItems");
		this.allItemsButton.setText("Select All");		
		this.allItemsButton.addActionListener(this);
		if (!this.singleSelection) {	
			this.panel.add(this.allItemsButton, BorderLayout.SOUTH);
		}
		
		this.buttonPanel = new JPanel(new GridBagLayout());
		this.closeButton = new JButton();
		this.closeButton.setActionCommand("close");
		this.closeButton.setText("Import");
		this.closeButton.addActionListener(this);

		this.cancelButton = new JButton();
//		isCancelled = false;
		this.cancelButton.setActionCommand("cancel");
		this.cancelButton.setText("Cancel");
		this.cancelButton.addActionListener(this);

		constrainBuild(this.buttonPanel, this.closeButton, 0, 0, 1, 1,
				GridBagConstraints.BOTH, GridBagConstraints.CENTER, 1.0, 0.0,
				5, 10, 10, 5);
		constrainBuild(this.buttonPanel, this.cancelButton, 1, 0, 1, 1,
				GridBagConstraints.BOTH, GridBagConstraints.CENTER, 1.0, 0.0,
				5, 5, 10, 10);

		this.contentPane.add(this.panel, BorderLayout.CENTER);
		this.contentPane.add(this.buttonPanel, BorderLayout.SOUTH);
		this.contentPane.revalidate();

		setContentPane(this.contentPane);
		setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
		validate();
		pack();
	}

	
	/**
	 * This handles the clicks on the different buttons.
	 * 
	 * @param e
	 *            The event from the buttons.
	 */
	public void actionPerformed(ActionEvent e) {
		Object source = e.getSource();
		if (source == this.allItemsButton) {
			for (int j = 0; j < this.checkBox.size(); j++) {
				JCheckBox cb = this.checkBox.elementAt(j);
				cb.setSelected(true);
			}
		} else 
			if (source == this.closeButton) {
			for (int j = 0; j < this.checkBox.size(); j++) {
				JCheckBox cb = this.checkBox.elementAt(j);
				if (cb.isSelected())
					this.result.addElement(this.itemNames.elementAt(j));
			}
			setVisible(false);
			dispose();
		} else if (source == this.cancelButton) {
//			isCancelled = true;
			setVisible(false);
			dispose();
		}
	}

	public Vector<String> getSelectedItemNames() {
		return this.result;
	}

	// constrainBuild() method
	private void constrainBuild(Container container, Component component,
			int grid_x, int grid_y, int grid_width, int grid_height, int fill,
			int anchor, double weight_x, double weight_y, int top, int left,
			int bottom, int right) {
		GridBagConstraints c = new GridBagConstraints();
		c.gridx = grid_x;
		c.gridy = grid_y;
		c.gridwidth = grid_width;
		c.gridheight = grid_height;
		c.fill = fill;
		c.anchor = anchor;
		c.weightx = weight_x;
		c.weighty = weight_y;
		c.insets = new Insets(top, left, bottom, right);
		((GridBagLayout) container.getLayout()).setConstraints(component, c);
		container.add(component);
	}
}