settings persist with Preferences

src/main/java/com/marginallyclever/ro3/apps/viewport/OpenGLPanel.java

@@ -11,6 +11,7 @@
 
 import java.awt.event.*;
 import java.awt.*;
+import java.util.prefs.Preferences;
 
 /**
  * {@link OpenGLPanel} manages a {@link GLJPanel} and an {@link FPSAnimator}.
@@ -22,12 +23,14 @@ public class OpenGLPanel extends App implements GLEventListener, MouseListener,
     private boolean doubleBuffered = true;
     private int fsaaSamples = 2;
     private boolean verticalSync = true;
-    private final int fps = 30;
+    private int fps = 30;
     private final FPSAnimator animator = new FPSAnimator(fps);
 
     public OpenGLPanel() {
         super(new BorderLayout());
 
+        loadPrefs();
+
         try {
             logger.info("availability="+ GLProfile.glAvailabilityToString());
             GLCapabilities capabilities = getCapabilities();
@@ -41,6 +44,24 @@ public OpenGLPanel() {
         animator.start();
     }
 
+    private void loadPrefs() {
+        Preferences pref = Preferences.userNodeForPackage(this.getClass());
+        hardwareAccelerated = pref.getBoolean("hardwareAccelerated",true);
+        doubleBuffered = pref.getBoolean("doubleBuffered",true);
+        fsaaSamples = pref.getInt("fsaaSamples",2);
+        verticalSync = pref.getBoolean("verticalSync",true);
+        fps = pref.getInt("fps",30);
+    }
+
+    public void savePrefs() {
+        Preferences pref = Preferences.userNodeForPackage(this.getClass());
+        pref.putBoolean("hardwareAccelerated",hardwareAccelerated);
+        pref.putBoolean("doubleBuffered",doubleBuffered);
+        pref.putInt("fsaaSamples",fsaaSamples);
+        pref.putBoolean("verticalSync",verticalSync);
+        pref.putInt("fps",fps);
+    }
+
     @Override
     public void addNotify() {
         super.addNotify();

src/main/java/com/marginallyclever/ro3/apps/viewport/ViewportSettingsPanel.java

@@ -95,6 +95,16 @@ public ViewportSettingsPanel() {
         inclination.setPreferredSize(new Dimension(100,100));
     }
 
+    @Override
+    public void removeNotify() {
+        super.removeNotify();
+
+        if(subject!=null) subject.savePrefs();
+
+        var dm = getDrawMeshes();
+        if(dm!=null) dm.savePrefs();
+    }
+
     private void setSunColor(Color color) {
         var dm = getDrawMeshes();
         if(dm==null) return;

src/main/java/com/marginallyclever/ro3/apps/viewport/renderpasses/DrawMeshes.java

@@ -23,6 +23,7 @@
 import java.awt.*;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.prefs.Preferences;
 
 /**
  * Draw each {@link MeshInstance} as a {@link Mesh}.  If the {@link MeshInstance} has a sibling {@link Material} with
@@ -45,6 +46,8 @@ public class DrawMeshes extends AbstractRenderPass {
     public DrawMeshes() {
         super("Meshes");
 
+        loadPrefs();
+
         shadowQuad.setRenderStyle(GL3.GL_QUADS);
         float v = 100;
         shadowQuad.addVertex(-v,-v,0);  shadowQuad.addTexCoord(0,0);
@@ -53,6 +56,22 @@ public DrawMeshes() {
         shadowQuad.addVertex(-v, v,0);  shadowQuad.addTexCoord(0,1);
     }
 
+    private void loadPrefs() {
+        Preferences pref = Preferences.userNodeForPackage(this.getClass());
+        sunlightSource.x = pref.getDouble("sunlightSource.x",sunlightSource.x);
+        sunlightSource.y = pref.getDouble("sunlightSource.y",sunlightSource.y);
+        sunlightSource.z = pref.getDouble("sunlightSource.z",sunlightSource.z);
+        sunlightColor = new Color(pref.getInt("sunlightColor",sunlightColor.getRGB()));
+    }
+
+    public void savePrefs() {
+        Preferences pref = Preferences.userNodeForPackage(this.getClass());
+        pref.putDouble("sunlightSource.x",sunlightSource.x);
+        pref.putDouble("sunlightSource.y",sunlightSource.y);
+        pref.putDouble("sunlightSource.z",sunlightSource.z);
+        pref.putInt("sunlightColor",sunlightColor.getRGB());
+    }
+
     @Override
     public void init(GLAutoDrawable glAutoDrawable) {
         GL3 gl3 = glAutoDrawable.getGL().getGL3();