Created framework for customizing properties dialog (changed access mods from private to protected )

src/main/java/org/jfree/chart/editor/DefaultAxisEditor.java

@@ -77,61 +77,61 @@
 class DefaultAxisEditor extends JPanel implements ActionListener {
 
     /** The axis label. */
-    private JTextField label;
+    protected JTextField label;
 
     /** The label font. */
-    private Font labelFont;
+    protected Font labelFont;
 
     /** The label paint. */
-    private PaintSample labelPaintSample;
+    protected PaintSample labelPaintSample;
 
     /** A field showing a description of the label font. */
-    private JTextField labelFontField;
+    protected JTextField labelFontField;
 
     /** The font for displaying tick labels on the axis. */
-    private Font tickLabelFont;
+    protected Font tickLabelFont;
 
     /**
      * A field containing a description of the font for displaying tick labels
      * on the axis.
      */
-    private JTextField tickLabelFontField;
+    protected JTextField tickLabelFontField;
 
     /** The paint (color) for the tick labels. */
-    private PaintSample tickLabelPaintSample;
+    protected PaintSample tickLabelPaintSample;
 
     /**
      * An empty sub-panel for extending the user interface to handle more
      * complex axes.
      */
-    private JPanel slot1;
+    protected JPanel slot1;
 
     /**
      * An empty sub-panel for extending the user interface to handle more
      * complex axes.
      */
-    private JPanel slot2;
+    protected JPanel slot2;
 
     /** A flag that indicates whether or not the tick labels are visible. */
-    private JCheckBox showTickLabelsCheckBox;
+    protected JCheckBox showTickLabelsCheckBox;
 
     /** A flag that indicates whether or not the tick marks are visible. */
-    private JCheckBox showTickMarksCheckBox;
+    protected JCheckBox showTickMarksCheckBox;
 
 //    /** Insets text field. */
-//    private InsetsTextField tickLabelInsetsTextField;
+//    protected InsetsTextField tickLabelInsetsTextField;
 //
 //    /** Label insets text field. */
-//    private InsetsTextField labelInsetsTextField;
+//    protected InsetsTextField labelInsetsTextField;
 
     /** The tick label insets. */
-    private RectangleInsets tickLabelInsets;
+    protected RectangleInsets tickLabelInsets;
 
     /** The label insets. */
-    private RectangleInsets labelInsets;
+    protected RectangleInsets labelInsets;
 
     /** A tabbed pane for... */
-    private JTabbedPane otherTabs;
+    protected JTabbedPane otherTabs;
 
     /** The resourceBundle for the localization. */
     protected static ResourceBundle localizationResources
@@ -417,7 +417,7 @@ else if (command.equals("SelectTickLabelFont")) {
     /**
      * Presents a font selection dialog to the user.
      */
-    private void attemptLabelFontSelection() {
+    protected void attemptLabelFontSelection() {
 
         FontChooserPanel panel = new FontChooserPanel(this.labelFont);
         int result = JOptionPane.showConfirmDialog(this, panel,
@@ -436,7 +436,7 @@ private void attemptLabelFontSelection() {
     /**
      * Allows the user the opportunity to change the outline paint.
      */
-    private void attemptModifyLabelPaint() {
+    protected void attemptModifyLabelPaint() {
         Color c;
         c = JColorChooser.showDialog(
             this, localizationResources.getString("Label_Color"), Color.BLUE
@@ -471,7 +471,7 @@ public void attemptTickLabelFontSelection() {
 //     * individual insets values. Updates the current insets text field if
 //     * edit is accepted.
 //     */
-//    private void editTickLabelInsets() {
+//    protected void editTickLabelInsets() {
 //        InsetsChooserPanel panel = new InsetsChooserPanel(
 //            this.tickLabelInsets);
 //        int result =  JOptionPane.showConfirmDialog(
@@ -490,7 +490,7 @@ public void attemptTickLabelFontSelection() {
 //     * individual insets values. Updates the current insets text field if edit
 //     * is accepted.
 //     */
-//    private void editLabelInsets() {
+//    protected void editLabelInsets() {
 //        InsetsChooserPanel panel = new InsetsChooserPanel(this.labelInsets);
 //        int result = JOptionPane.showConfirmDialog(
 //            this, panel, localizationResources.getString("Edit_Insets"),

src/main/java/org/jfree/chart/editor/DefaultChartEditor.java

@@ -74,19 +74,19 @@
 class DefaultChartEditor extends JPanel implements ActionListener, ChartEditor {
 
     /** A panel for displaying/editing the properties of the title. */
-    private DefaultTitleEditor titleEditor;
+    protected DefaultTitleEditor titleEditor;
 
     /** A panel for displaying/editing the properties of the plot. */
-    private DefaultPlotEditor plotEditor;
+    protected DefaultPlotEditor plotEditor;
 
     /**
      * A checkbox indicating whether or not the chart is drawn with
      * anti-aliasing.
      */
-    private JCheckBox antialias;
+    protected JCheckBox antialias;
 
     /** The chart background color. */
-    private PaintSample background;
+    protected PaintSample background;
 
     /** The resourceBundle for the localization. */
     protected static ResourceBundle localizationResources
@@ -179,15 +179,15 @@ public DefaultChartEditor(JFreeChart chart) {
 
         JTabbedPane tabs = new JTabbedPane();
 
-        this.titleEditor = new DefaultTitleEditor(title);
+        this.titleEditor = instantiateTitleEditor(title);
         this.titleEditor.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
         tabs.addTab(localizationResources.getString("Title"), this.titleEditor);
 
         if (plot instanceof PolarPlot) {
-            this.plotEditor = new DefaultPolarPlotEditor((PolarPlot) plot);
+            this.plotEditor = instantiatePolarPlotEditor((PolarPlot) plot);
         }
         else {
-            this.plotEditor = new DefaultPlotEditor(plot);
+            this.plotEditor = instantiatePlotEditor(plot);
         }
         this.plotEditor.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
         tabs.addTab(localizationResources.getString("Plot"), this.plotEditor);
@@ -196,6 +196,40 @@ public DefaultChartEditor(JFreeChart chart) {
         parts.add(tabs, BorderLayout.NORTH);
         add(parts);
     }
+
+    /**
+     * Instantiates the title editor
+     * - This can be overridden by a subclass to use a different TitleEditor that inherits DeafultTitleEditor
+     * @param title
+     * @return
+     */
+    protected DefaultTitleEditor instantiateTitleEditor(Title title)
+    {
+    	return  new DefaultTitleEditor(title);
+    }
+
+    /**
+     * Instantiates the DefaultPlotEditor
+     * - This can be overridden by a subclass to use a different DefaultPlotEditor that inherits DefaultPlotEditor
+     * @param plot
+     * @return
+     */
+    protected DefaultPlotEditor instantiatePlotEditor(Plot plot)
+    {
+    	return new DefaultPlotEditor(plot);
+    }
+
+    /**
+     * Instantiates the PolarPlotEditor
+     * - This can be overridden by a subclass to use a different PolarPlotEditor that inherits PolarPlotEditor
+     * @param plot
+     * @return
+     */
+    protected DefaultPolarPlotEditor instantiatePolarPlotEditor(PolarPlot plot)
+    {
+    	return new DefaultPolarPlotEditor(plot);
+    }
+
 
     /**
      * Returns a reference to the title editor.
@@ -251,7 +285,7 @@ public void actionPerformed(ActionEvent event) {
      * JColorChooser, so we are only allowing a subset of all Paint objects to
      * be selected (fix later).
      */
-    private void attemptModifyBackgroundPaint() {
+    protected void attemptModifyBackgroundPaint() {
         Color c;
         c = JColorChooser.showDialog(this, localizationResources.getString(
                 "Background_Color"), Color.BLUE);

src/main/java/org/jfree/chart/editor/DefaultLogAxisEditor.java

@@ -56,9 +56,9 @@
  */
 public class DefaultLogAxisEditor extends DefaultValueAxisEditor {
 
-    private double manualTickUnitValue;
+    protected double manualTickUnitValue;
 
-    private JTextField manualTickUnit;
+    protected JTextField manualTickUnit;
 
     /**
      * Standard constructor: builds a property panel for the specified axis.

src/main/java/org/jfree/chart/editor/DefaultNumberAxisEditor.java

@@ -64,9 +64,9 @@
 class DefaultNumberAxisEditor extends DefaultValueAxisEditor
     implements FocusListener {
 
-    private double manualTickUnitValue;
+    protected double manualTickUnitValue;
 
-    private JTextField manualTickUnit;
+    protected JTextField manualTickUnit;
 
 
     /**