Merged choose color refactoring with zoombox modifications

src/mustic/gui/dialog/classifier/ConstraintsColor.java

+package mustic.gui.dialog.classifier;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.GridLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.Vector;
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JColorChooser;
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.ScrollPaneConstants;
+import javax.swing.border.EtchedBorder;
+import javax.swing.border.TitledBorder;
+
+/**
+ * Dialog that allows the user to change the color of the constraints
+ */
+public class ConstraintsColor extends JDialog {
+
+	private static final long serialVersionUID = 1L;
+
+	/** constraints colors */
+	private Color 					mustLinkColor 			 			= new Color(124, 252, 0);
+	private Color 					cannotLinkColor 					= new Color(255, 0, 255);
+	private Vector<Color> 			labelConstraintColor 				= new Vector<Color>();
+
+	/** constraints buttons */
+	private JButton 				jb_mustLinkChooseColor 				= new JButton();
+	private JButton 				jb_cannotLinkChooseColor 			= new JButton();
+	private Vector<JButton> 		jb_labelConstraintClassChooseColor	= new Vector<JButton>();
+
+	/** dynamic JPanel Colors of Label Constraints Classes*/
+	JPanel 									labelColorConstraintPanel			= new JPanel(new GridLayout(0,1));
+
+	private ConstraintsSelectionDialog		dialog = null;
+
+	/**
+	 * @brief Constructor dialog window that allows the user to change the color of the constraints 
+	 * @param d
+	 * @param colorML
+	 * @param colorCL
+	 * @param colorVectorLabel
+	 */
+	public ConstraintsColor(ConstraintsSelectionDialog d, Color colorML, Color colorCL, Vector<Color> colorVectorLabel) {
+		this.dialog = d;
+		this.mustLinkColor = colorML;
+		this.cannotLinkColor = colorCL;
+		this.labelConstraintColor = colorVectorLabel;
+
+		//buttons action listeners that allow the user to choose the color of the constraint
+		jb_cannotLinkChooseColor.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				chooseCannotLinkColor(); 
+			}
+		});
+
+		jb_mustLinkChooseColor.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				chooseMustLinkColor();
+			}
+
+		});
+
+		// creates the panel for the label constraints
+		for(int i=0; i<dialog.getClassCounter(); i++) {
+			JButton jb = new JButton();
+			jb_labelConstraintClassChooseColor.add(jb);
+			jb_labelConstraintClassChooseColor.get(i).putClientProperty("index", i);
+			jb_labelConstraintClassChooseColor.get(i).setBackground(labelConstraintColor.get(i));
+			createLabelColorConstraintsPanel(i);
+		}
+
+		this.setTitle("Choose Constraints Colors");
+
+		chooseConstraintColors();
+
+	}
+
+	/**
+	 * Add the last created label constraint class name(number) and its color
+	 * button to the panel labelColorConstraintPanel. The button allows user to
+	 * choose the label constraint class color.
+	 **/
+	protected void createLabelColorConstraintsPanel(int index) {
+
+		JPanel classNameButtonPanel = new JPanel(new GridLayout(1, 2));
+		classNameButtonPanel.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
+
+		classNameButtonPanel.add(new JLabel("Class "+ (index+1) + ":"));
+		jb_labelConstraintClassChooseColor.get(index).addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent event) {
+
+				JButton lblClassColorButtonClicked = (JButton) event.getSource();
+				int buttonIndex = (int) lblClassColorButtonClicked.getClientProperty("index");
+				chooseLabelClassColor(buttonIndex);
+			}
+		});
+		classNameButtonPanel.add(jb_labelConstraintClassChooseColor.get(index));
+
+		labelColorConstraintPanel.add(classNameButtonPanel);
+	}
+
+	/** Opens a JDialog for choosing the Constraints Colors*/
+	protected void chooseConstraintColors() {
+		JPanel constraintsPanel=new JPanel(new BorderLayout());
+		JPanel mlConstraintsPanel=new JPanel();
+		JPanel clConstraintsPanel=new JPanel();
+		JPanel mlclConstraintsPanel=new JPanel(new GridLayout(2,1));
+		JPanel supportPanel=new JPanel(new BorderLayout());
+		supportPanel.add(labelColorConstraintPanel,BorderLayout.NORTH);
+
+		JScrollPane lblConstraintsPane=new JScrollPane(supportPanel,ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+		TitledBorder lblcBorder=BorderFactory.createTitledBorder( BorderFactory.createEtchedBorder(EtchedBorder.LOWERED),"Label Constraints Color",TitledBorder.LEFT,TitledBorder.TOP);
+		lblConstraintsPane.setBorder(lblcBorder);
+
+		// must-link constraints panel
+		mlConstraintsPanel.setLayout(new BorderLayout());
+		TitledBorder mlcBorder=BorderFactory.createTitledBorder( BorderFactory.createEtchedBorder(EtchedBorder.LOWERED),"Must-Link Constraints Color",TitledBorder.LEFT,TitledBorder.TOP);
+		mlConstraintsPanel.setBorder(mlcBorder);
+		mlConstraintsPanel.add(jb_mustLinkChooseColor,BorderLayout.CENTER);
+		mlclConstraintsPanel.add(mlConstraintsPanel);
+
+		// cannot-link constraints panel
+		clConstraintsPanel.setLayout(new BorderLayout());
+		TitledBorder clcBorder=BorderFactory.createTitledBorder( BorderFactory.createEtchedBorder(EtchedBorder.LOWERED),"Cannot-Link Constraints Color",TitledBorder.LEFT,TitledBorder.TOP);
+		clConstraintsPanel.setBorder(clcBorder);
+		clConstraintsPanel.add(jb_cannotLinkChooseColor,BorderLayout.CENTER);
+		mlclConstraintsPanel.add(clConstraintsPanel);
+
+
+		// button panel
+		JPanel buttonPanel=new JPanel();
+		JButton ok = new JButton("OK");// update color changes on ok, update only fields that have changed
+		ok.addActionListener( new ActionListener() {
+			@Override public void actionPerformed(ActionEvent event) {
+				dialog.setColorML(mustLinkColor);
+				dialog.setColorCL(cannotLinkColor);
+				dialog.setColorLabels(labelConstraintColor);
+				ConstraintsColor.this.dispose();
+			}
+		});
+
+		
+		// exit dialog on cancel
+		JButton cancel = new JButton("Cancel");
+		cancel.addActionListener( new ActionListener() {
+			public void actionPerformed(ActionEvent event) {
+				ConstraintsColor.this.dispose();
+			}
+		});
+
+		jb_mustLinkChooseColor.setBackground(mustLinkColor);
+		jb_cannotLinkChooseColor.setBackground(cannotLinkColor);
+
+		buttonPanel.add(ok);		
+		buttonPanel.add(cancel);	
+
+		constraintsPanel.add(mlclConstraintsPanel,BorderLayout.NORTH);
+		constraintsPanel.add(lblConstraintsPane,BorderLayout.CENTER);
+		constraintsPanel.add(buttonPanel,BorderLayout.SOUTH);
+
+		this.add(constraintsPanel,BorderLayout.CENTER);
+
+		this.setPreferredSize(new Dimension(270, 270));
+		this.pack();
+		this.setLocationRelativeTo(null);
+		this.setModal(true);
+		this.setVisible(true);
+
+	}
+
+	/**
+	 * Color Chooser for Must-Link constraints\n Sets the temporary color and
+	 * button indicating the chosen color.
+	 */
+	protected void chooseMustLinkColor() {
+		mustLinkColor = JColorChooser.showDialog(this,"Must-Link Color Chooser",Color.red);
+		this.jb_mustLinkChooseColor.setBackground(mustLinkColor);
+	}
+
+	/**
+	 * Color Chooser for Cannot-Link constraints\n Sets the temporary color and
+	 * button indicating the chosen color.
+	 **/
+	protected void chooseCannotLinkColor() {
+		this.cannotLinkColor = JColorChooser.showDialog(this, "Cannot-Link Color Chooser", //$NON-NLS-1$
+				cannotLinkColor);
+		this.jb_cannotLinkChooseColor.setBackground(cannotLinkColor);
+
+	}
+
+	/**
+	 * Color Chooser for a Label constraint of the class "classID" \n Sets the
+	 * temporary color and button indicating the chosen color for the class.
+	 **/
+	protected void chooseLabelClassColor(int indexClass) {
+
+		Color lblCColorTemp = JColorChooser.showDialog(this, "Label Class Color Chooser", Color.red); //$NON-NLS-1$
+		this.labelConstraintColor.set(indexClass, lblCColorTemp);
+		this.jb_labelConstraintClassChooseColor.get(indexClass).setBackground(lblCColorTemp);
+	}
+
+}