Added Preferences support to the EditStatus class. Zoom factor, last …

…used directory and bands on are now saved as preferences when exiting the application.

picedit/src/com/agifans/picedit/EditStatus.java

@@ -1,7 +1,9 @@
 package com.agifans.picedit;
 
 import java.awt.Point;
+import java.io.File;
 import java.util.LinkedList;
+import java.util.prefs.Preferences;
 
 /**
  * This class holds everything about the current picture editing status.
@@ -20,6 +22,8 @@ public class EditStatus {
 
     public static final int LAST_VALUE_NONE = Integer.MIN_VALUE;
 
+    private Preferences prefs;
+
     private ToolType tool;
 
     private int visualColour;
@@ -128,14 +132,40 @@ public class EditStatus {
      * The name of the picture being edited.
      */
     private String pictureName;
+
+    /**
+     * The name of the most recently used directory.
+     */
+    private String lastUsedDirectory;
 
     /**
      * Constructor for EditStatus.
      */
     public EditStatus() {
         clear();
+        loadPreferences();
     }
 
+    /**
+     * Loads and applies the user preferences related to the Edit Status.
+     */
+    public void loadPreferences() {
+        prefs = Preferences.userNodeForPackage(this.getClass());
+
+        this.lastUsedDirectory = prefs.get("LAST_USED_DIRECTORY", new File(".").getAbsolutePath());
+        this.zoomFactor = prefs.getInt("ZOOM_FACTOR", 3);
+        this.bandsOn = prefs.getBoolean("BANDS_ON", false);
+    }
+
+    /**
+     * Saves the user preferences related to the Edit Status.
+     */
+    public void savePreferences() {
+        prefs.put("LAST_USED_DIRECTORY", this.lastUsedDirectory);
+        prefs.putInt("ZOOM_FACTOR", this.zoomFactor);
+        prefs.putBoolean("BANDS_ON", this.bandsOn);
+    }
+
     public void clear() {
         clear(true);
     }
@@ -678,6 +708,14 @@ public void setPictureName(String pictureName) {
         this.pictureName = pictureName;
     }
 
+    public String getLastUsedDirectory() {
+        return this.lastUsedDirectory;
+    }
+
+    public void setLastUsedDirectory(String lastUsedDirectory) {
+        this.lastUsedDirectory = lastUsedDirectory;
+    }
+
     /**
      * Adjusts the mouse point to the coordinate system of the AGI 
      * picture canvas. The EditStatus doesn't care about anything outside

picedit/src/com/agifans/picedit/Menu.java

@@ -47,7 +47,7 @@ public Menu(EditStatus editStatus, PicGraphics picGraphics, Picture picture, Pic
         // Set up a single JFileChooser for use with all open and save dialogs. This
         // allows the directory to be remembered between uses. Default to the current
         // directory.
-        this.fileChooser = new JFileChooser(new File(".").getAbsolutePath());
+        this.fileChooser = new JFileChooser(editStatus.getLastUsedDirectory());
 
         createMenuItems();
     }
@@ -134,12 +134,15 @@ private void createMenuItems() {
         specialMenu.setMnemonic(KeyEvent.VK_S);
         JMenuItem backgroundMenuItem = new JCheckBoxMenuItem(MenuOption.BACKGROUND.getDisplayValue());
         backgroundMenuItem.setMnemonic(KeyEvent.VK_G);
+        backgroundMenuItem.setSelected(editStatus.isBackgroundEnabled());
         JMenuItem bandsMenuItem = new JCheckBoxMenuItem(MenuOption.BANDS.getDisplayValue());
         bandsMenuItem.setMnemonic(KeyEvent.VK_B);
         bandsMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_B, acceleratorKey));
+        bandsMenuItem.setSelected(editStatus.isBandsOn());
         JMenuItem dualModeMenuItem = new JCheckBoxMenuItem(MenuOption.DUAL_MODE.getDisplayValue());
         dualModeMenuItem.setMnemonic(KeyEvent.VK_D);
         dualModeMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_D, acceleratorKey));
+        dualModeMenuItem.setSelected(editStatus.isDualModeEnabled());
         backgroundMenuItem.addActionListener(this);
         bandsMenuItem.addActionListener(this);
         dualModeMenuItem.addActionListener(this);
@@ -253,6 +256,7 @@ private boolean processMenuSelection(MenuOption menuOption) {
                 Object[] quitOptions = { "Quit", "Cancel" };
                 int quitAnswer = JOptionPane.showOptionDialog(application, "Are you sure you want to Quit?", "", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE, null, quitOptions, quitOptions[0]);
                 if (quitAnswer == JOptionPane.YES_OPTION) {
+                    editStatus.savePreferences();
                     System.exit(0);
                 }
                 break;
@@ -309,6 +313,9 @@ private boolean processMenuSelection(MenuOption menuOption) {
                 break;
         }
 
+        // Store the current directory in the edit status so it is saved in preferences.
+        editStatus.setLastUsedDirectory(fileChooser.getCurrentDirectory().getAbsolutePath());
+
         return success;
     }
 }

picedit/src/com/agifans/picedit/PicEdit.java

@@ -1,6 +1,8 @@
 package com.agifans.picedit;
 
 import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
 import java.util.*;
 import javax.swing.*;
 
@@ -49,7 +51,6 @@ public final class PicEdit extends JApplet {
     @SuppressWarnings("unchecked")
     public PicEdit() {
         this.editStatus = new EditStatus();
-        this.editStatus.setZoomFactor(3);
         this.picGraphics = new PicGraphics(this, 25);
         this.picture = new Picture(editStatus, picGraphics);
         this.picturePanel = new PicturePanel(editStatus, picGraphics, picture, this);
@@ -123,9 +124,14 @@ public void paint(Graphics g) {
      * Run PICEDIT as a standalone Java application.
      */
     public static void main(String[] args) {
-        PicEdit app = new PicEdit();
+        final PicEdit app = new PicEdit();
 
         JFrame frame = new JFrame();
+        frame.addWindowListener(new WindowAdapter() {
+            public void windowClosing(WindowEvent event) {
+                app.editStatus.savePreferences();
+            }
+        });
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         frame.setLayout(new BorderLayout());
         frame.getContentPane().add(app, BorderLayout.CENTER);