Created a backdrop image for the ShaderNode editor

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/BackdropPanel.form

@@ -0,0 +1,302 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.9" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,44,0,0,1,-112"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignFlowLayout"/>
+  <SubComponents>
+    <Container class="javax.swing.JPanel" name="toolBar">
+      <Properties>
+        <Property name="opaque" type="boolean" value="false"/>
+      </Properties>
+
+      <Layout>
+        <DimensionLayout dim="0">
+          <Group type="103" groupAlignment="0" attributes="0">
+              <Group type="102" alignment="0" attributes="0">
+                  <Component id="expandButton" min="-2" pref="16" max="-2" attributes="0"/>
+                  <EmptySpace max="-2" attributes="0"/>
+                  <Component id="bringToFrontButton" min="-2" pref="16" max="-2" attributes="0"/>
+                  <EmptySpace max="-2" attributes="0"/>
+                  <Component id="sphereButton" min="-2" pref="16" max="-2" attributes="0"/>
+                  <EmptySpace max="-2" attributes="0"/>
+                  <Component id="boxButton" min="-2" pref="16" max="-2" attributes="0"/>
+                  <EmptySpace max="-2" attributes="0"/>
+                  <Component id="quadButton" min="-2" pref="16" max="-2" attributes="0"/>
+                  <EmptySpace pref="90" max="32767" attributes="0"/>
+                  <Component id="reloadButton" min="-2" pref="16" max="-2" attributes="0"/>
+              </Group>
+          </Group>
+        </DimensionLayout>
+        <DimensionLayout dim="1">
+          <Group type="103" groupAlignment="0" attributes="0">
+              <Component id="expandButton" alignment="0" min="-2" pref="16" max="-2" attributes="0"/>
+              <Component id="reloadButton" alignment="0" min="-2" pref="16" max="-2" attributes="0"/>
+              <Component id="sphereButton" min="-2" pref="16" max="-2" attributes="0"/>
+              <Component id="boxButton" min="-2" pref="16" max="-2" attributes="0"/>
+              <Component id="quadButton" min="-2" pref="16" max="-2" attributes="0"/>
+              <Component id="bringToFrontButton" alignment="0" min="-2" pref="16" max="-2" attributes="0"/>
+          </Group>
+        </DimensionLayout>
+      </Layout>
+      <SubComponents>
+        <Component class="javax.swing.JButton" name="reloadButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/reload.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.reloadButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="reloadButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="reloadButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="reloadButtonActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JButton" name="expandButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/collapse.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.expandButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="expandButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="expandButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="expandButtonActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JButton" name="sphereButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/Sphere.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.sphereButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="sphereButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="sphereButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="sphereButtonActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JButton" name="boxButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/cube.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.boxButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="boxButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="boxButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="boxButtonActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JButton" name="quadButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/Quad.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.quadButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="quadButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="quadButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="quadButtonActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JButton" name="bringToFrontButton">
+          <Properties>
+            <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+              <Color blue="99" green="99" red="99" type="rgb"/>
+            </Property>
+            <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+              <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/frontBack.png"/>
+            </Property>
+            <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+              <ResourceString bundle="com/jme3/gde/materialdefinition/editor/Bundle.properties" key="BackdropPanel.bringToFrontButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+            </Property>
+            <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
+              <Border info="null"/>
+            </Property>
+            <Property name="borderPainted" type="boolean" value="false"/>
+            <Property name="contentAreaFilled" type="boolean" value="false"/>
+            <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">
+              <Color id="Curseur par d&#xe9;faut"/>
+            </Property>
+            <Property name="focusable" type="boolean" value="false"/>
+            <Property name="iconTextGap" type="int" value="0"/>
+            <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+            <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+              <Dimension value="[24, 24]"/>
+            </Property>
+          </Properties>
+          <Events>
+            <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="bringToFrontButtonMouseEntered"/>
+            <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="bringToFrontButtonMouseExited"/>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="bringToFrontButtonActionPerformed"/>
+          </Events>
+        </Component>
+      </SubComponents>
+    </Container>
+    <Component class="javax.swing.JLabel" name="previewLabel">
+      <Properties>
+        <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+          <Color blue="64" green="64" red="64" type="rgb"/>
+        </Property>
+        <Property name="foreground" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
+          <Color blue="64" green="64" red="64" type="rgb"/>
+        </Property>
+        <Property name="horizontalAlignment" type="int" value="0"/>
+        <Property name="horizontalTextPosition" type="int" value="0"/>
+        <Property name="iconTextGap" type="int" value="0"/>
+        <Property name="maximumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[100, 100]"/>
+        </Property>
+        <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[100, 100]"/>
+        </Property>
+        <Property name="opaque" type="boolean" value="true"/>
+        <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[100, 100]"/>
+        </Property>
+      </Properties>
+    </Component>
+  </SubComponents>
+</Form>

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/BackdropPanel.java

@@ -0,0 +1,470 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.jme3.gde.materialdefinition.editor;
+
+import com.jme3.gde.materials.MaterialPreviewRenderer;
+import com.jme3.material.Material;
+import java.awt.Container;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import javax.swing.JScrollPane;
+import javax.swing.JViewport;
+import javax.swing.SwingUtilities;
+import javax.swing.Timer;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+/**
+ *
+ * @author Nehon
+ */
+public class BackdropPanel extends javax.swing.JPanel implements MouseListener, ChangeListener {
+
+    private final MaterialPreviewRenderer renderer;
+    private Material mat;
+
+    /**
+     * Creates new form BackdropPanel
+     */
+    @SuppressWarnings("LeakingThisInConstructor")
+    public BackdropPanel() {
+        initComponents();
+        //  setBounds(0, 0, 300, 300);
+        setLayout(null);
+        toolBar.setVisible(false);
+        addMouseListener(this);
+        renderer = new MaterialPreviewRenderer(previewLabel);
+        recalculateTimer.setRepeats(false);
+        addComponentListener(new ComponentAdapter() {
+
+            @Override
+            public void componentResized(ComponentEvent e) {
+                updateComponents(e);
+            }
+
+            @Override
+            public void componentShown(ComponentEvent e) {
+                updateComponents(e);
+            }
+
+            @Override
+            public void componentMoved(ComponentEvent e) {
+                updateComponents(e);
+            }
+
+        });
+
+        previewLabel.setBounds(0, 0, 120, 120);
+        toolBar.setBounds(0, 0, 120, 16);
+        repaint();
+    }
+
+    private void updateComponents(ComponentEvent e) {
+        previewLabel.setBounds(0, 0, e.getComponent().getWidth(), e.getComponent().getHeight());
+        toolBar.setBounds(0, 0, e.getComponent().getWidth(), toolBar.getHeight());
+        repaint();
+    }
+
+    public void cleanup() {
+        renderer.cleanUp();
+    }
+
+    public void showMaterial(Material mat) {
+        if (isVisible()) {
+            this.mat = mat;
+            renderer.showMaterial(mat); 
+        }
+    }
+
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    @SuppressWarnings("unchecked")
+    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    private void initComponents() {
+
+        toolBar = new javax.swing.JPanel();
+        reloadButton = new javax.swing.JButton();
+        expandButton = new javax.swing.JButton();
+        sphereButton = new javax.swing.JButton();
+        boxButton = new javax.swing.JButton();
+        quadButton = new javax.swing.JButton();
+        bringToFrontButton = new javax.swing.JButton();
+        previewLabel = new javax.swing.JLabel();
+
+        toolBar.setOpaque(false);
+
+        reloadButton.setBackground(new java.awt.Color(153, 153, 153));
+        reloadButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/reload.png"))); // NOI18N
+        reloadButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.reloadButton.toolTipText")); // NOI18N
+        reloadButton.setBorder(null);
+        reloadButton.setBorderPainted(false);
+        reloadButton.setContentAreaFilled(false);
+        reloadButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        reloadButton.setFocusable(false);
+        reloadButton.setIconTextGap(0);
+        reloadButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        reloadButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        reloadButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        reloadButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                reloadButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                reloadButtonMouseExited(evt);
+            }
+        });
+        reloadButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                reloadButtonActionPerformed(evt);
+            }
+        });
+
+        expandButton.setBackground(new java.awt.Color(153, 153, 153));
+        expandButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/collapse.png"))); // NOI18N
+        expandButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.expandButton.toolTipText")); // NOI18N
+        expandButton.setBorder(null);
+        expandButton.setBorderPainted(false);
+        expandButton.setContentAreaFilled(false);
+        expandButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        expandButton.setFocusable(false);
+        expandButton.setIconTextGap(0);
+        expandButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        expandButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        expandButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        expandButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                expandButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                expandButtonMouseExited(evt);
+            }
+        });
+        expandButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                expandButtonActionPerformed(evt);
+            }
+        });
+
+        sphereButton.setBackground(new java.awt.Color(153, 153, 153));
+        sphereButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/Sphere.png"))); // NOI18N
+        sphereButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.sphereButton.toolTipText")); // NOI18N
+        sphereButton.setBorder(null);
+        sphereButton.setBorderPainted(false);
+        sphereButton.setContentAreaFilled(false);
+        sphereButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        sphereButton.setFocusable(false);
+        sphereButton.setIconTextGap(0);
+        sphereButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        sphereButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        sphereButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        sphereButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                sphereButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                sphereButtonMouseExited(evt);
+            }
+        });
+        sphereButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                sphereButtonActionPerformed(evt);
+            }
+        });
+
+        boxButton.setBackground(new java.awt.Color(153, 153, 153));
+        boxButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/cube.png"))); // NOI18N
+        boxButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.boxButton.toolTipText")); // NOI18N
+        boxButton.setBorder(null);
+        boxButton.setBorderPainted(false);
+        boxButton.setContentAreaFilled(false);
+        boxButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        boxButton.setFocusable(false);
+        boxButton.setIconTextGap(0);
+        boxButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        boxButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        boxButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        boxButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                boxButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                boxButtonMouseExited(evt);
+            }
+        });
+        boxButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                boxButtonActionPerformed(evt);
+            }
+        });
+
+        quadButton.setBackground(new java.awt.Color(153, 153, 153));
+        quadButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/Quad.png"))); // NOI18N
+        quadButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.quadButton.toolTipText")); // NOI18N
+        quadButton.setBorder(null);
+        quadButton.setBorderPainted(false);
+        quadButton.setContentAreaFilled(false);
+        quadButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        quadButton.setFocusable(false);
+        quadButton.setIconTextGap(0);
+        quadButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        quadButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        quadButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        quadButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                quadButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                quadButtonMouseExited(evt);
+            }
+        });
+        quadButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                quadButtonActionPerformed(evt);
+            }
+        });
+
+        bringToFrontButton.setBackground(new java.awt.Color(153, 153, 153));
+        bringToFrontButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/frontBack.png"))); // NOI18N
+        bringToFrontButton.setToolTipText(org.openide.util.NbBundle.getMessage(BackdropPanel.class, "BackdropPanel.bringToFrontButton.toolTipText")); // NOI18N
+        bringToFrontButton.setBorder(null);
+        bringToFrontButton.setBorderPainted(false);
+        bringToFrontButton.setContentAreaFilled(false);
+        bringToFrontButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
+        bringToFrontButton.setFocusable(false);
+        bringToFrontButton.setIconTextGap(0);
+        bringToFrontButton.setMaximumSize(new java.awt.Dimension(24, 24));
+        bringToFrontButton.setMinimumSize(new java.awt.Dimension(24, 24));
+        bringToFrontButton.setPreferredSize(new java.awt.Dimension(24, 24));
+        bringToFrontButton.addMouseListener(new java.awt.event.MouseAdapter() {
+            public void mouseEntered(java.awt.event.MouseEvent evt) {
+                bringToFrontButtonMouseEntered(evt);
+            }
+            public void mouseExited(java.awt.event.MouseEvent evt) {
+                bringToFrontButtonMouseExited(evt);
+            }
+        });
+        bringToFrontButton.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                bringToFrontButtonActionPerformed(evt);
+            }
+        });
+
+        javax.swing.GroupLayout toolBarLayout = new javax.swing.GroupLayout(toolBar);
+        toolBar.setLayout(toolBarLayout);
+        toolBarLayout.setHorizontalGroup(
+            toolBarLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGroup(toolBarLayout.createSequentialGroup()
+                .addComponent(expandButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addComponent(bringToFrontButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addComponent(sphereButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addComponent(boxButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                .addComponent(quadButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 90, Short.MAX_VALUE)
+                .addComponent(reloadButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE))
+        );
+        toolBarLayout.setVerticalGroup(
+            toolBarLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addComponent(expandButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+            .addComponent(reloadButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+            .addComponent(sphereButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+            .addComponent(boxButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+            .addComponent(quadButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+            .addComponent(bringToFrontButton, javax.swing.GroupLayout.PREFERRED_SIZE, 16, javax.swing.GroupLayout.PREFERRED_SIZE)
+        );
+
+        add(toolBar);
+
+        previewLabel.setBackground(new java.awt.Color(100, 100, 100));
+        previewLabel.setForeground(new java.awt.Color(100, 100, 100));
+        previewLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
+        previewLabel.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
+        previewLabel.setIconTextGap(0);
+        previewLabel.setMaximumSize(new java.awt.Dimension(100, 100));
+        previewLabel.setMinimumSize(new java.awt.Dimension(100, 100));
+        previewLabel.setOpaque(true);
+        previewLabel.setPreferredSize(new java.awt.Dimension(100, 100));
+        add(previewLabel);
+    }// </editor-fold>//GEN-END:initComponents
+
+    private void sphereButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_sphereButtonMouseEntered
+        mouseEntered(SwingUtilities.convertMouseEvent(sphereButton, evt, this));
+    }//GEN-LAST:event_sphereButtonMouseEntered
+
+    private void sphereButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_sphereButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(sphereButton, evt, this));
+    }//GEN-LAST:event_sphereButtonMouseExited
+
+    private void sphereButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_sphereButtonActionPerformed
+        renderer.switchDisplay(MaterialPreviewRenderer.DisplayType.Sphere);
+        refresh();
+    }//GEN-LAST:event_sphereButtonActionPerformed
+
+    private void boxButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_boxButtonMouseEntered
+        mouseEntered(SwingUtilities.convertMouseEvent(boxButton, evt, this));
+    }//GEN-LAST:event_boxButtonMouseEntered
+
+    private void boxButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_boxButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(boxButton, evt, this));
+    }//GEN-LAST:event_boxButtonMouseExited
+
+    private void boxButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_boxButtonActionPerformed
+        renderer.switchDisplay(MaterialPreviewRenderer.DisplayType.Box);
+        refresh();
+    }//GEN-LAST:event_boxButtonActionPerformed
+
+    private void reloadButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_reloadButtonMouseEntered
+        mouseEntered(SwingUtilities.convertMouseEvent(reloadButton, evt, this));
+    }//GEN-LAST:event_reloadButtonMouseEntered
+
+    private void reloadButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_reloadButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(reloadButton, evt, this));
+    }//GEN-LAST:event_reloadButtonMouseExited
+
+    private void reloadButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_reloadButtonActionPerformed
+        refresh();
+    }//GEN-LAST:event_reloadButtonActionPerformed
+
+    private void quadButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_quadButtonMouseEntered
+        mouseEntered(SwingUtilities.convertMouseEvent(quadButton, evt, this));
+    }//GEN-LAST:event_quadButtonMouseEntered
+
+    private void quadButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_quadButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(quadButton, evt, this));
+    }//GEN-LAST:event_quadButtonMouseExited
+
+    private void quadButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_quadButtonActionPerformed
+        renderer.switchDisplay(MaterialPreviewRenderer.DisplayType.Quad);
+        refresh();
+    }//GEN-LAST:event_quadButtonActionPerformed
+
+    private void expandButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_expandButtonMouseEntered
+        mouseEntered(SwingUtilities.convertMouseEvent(expandButton, evt, this));
+    }//GEN-LAST:event_expandButtonMouseEntered
+
+    private void expandButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_expandButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(expandButton, evt, this));
+    }//GEN-LAST:event_expandButtonMouseExited
+
+    private void expandButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_expandButtonActionPerformed
+        setVisible(false);
+    }//GEN-LAST:event_expandButtonActionPerformed
+
+    private void bringToFrontButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_bringToFrontButtonMouseEntered
+         mouseEntered(SwingUtilities.convertMouseEvent(bringToFrontButton, evt, this));
+    }//GEN-LAST:event_bringToFrontButtonMouseEntered
+
+    private void bringToFrontButtonMouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_bringToFrontButtonMouseExited
+        mouseExited(SwingUtilities.convertMouseEvent(bringToFrontButton, evt, this));
+    }//GEN-LAST:event_bringToFrontButtonMouseExited
+
+    private void bringToFrontButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_bringToFrontButtonActionPerformed
+        Diagram diagram = ((Diagram) getParent());
+        if (diagram.getComponentZOrder(this) > 0) {
+            diagram.setComponentZOrder(this, 0);
+        } else {
+            diagram.setComponentZOrder(this, ((Diagram) getParent()).getComponentCount() - 1);
+        }
+        diagram.repaint();
+    }//GEN-LAST:event_bringToFrontButtonActionPerformed
+
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JButton boxButton;
+    private javax.swing.JButton bringToFrontButton;
+    private javax.swing.JButton expandButton;
+    private javax.swing.JLabel previewLabel;
+    private javax.swing.JButton quadButton;
+    private javax.swing.JButton reloadButton;
+    private javax.swing.JButton sphereButton;
+    private javax.swing.JPanel toolBar;
+    // End of variables declaration//GEN-END:variables
+
+    @Override
+    public void mouseClicked(MouseEvent e) {
+    }
+
+    @Override
+    public void mousePressed(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseReleased(MouseEvent e) {
+        Container c = getParent();
+        if (c != null) {
+            ((MouseListener) c).mouseReleased(SwingUtilities.convertMouseEvent(this, e, c));
+        }
+    }
+
+    @Override
+    public void mouseEntered(MouseEvent e) {
+        toolBar.setVisible(true);
+        t.stop();
+    }
+    Timer t = new Timer(500, new ActionListener() {
+        @Override
+        public void actionPerformed(ActionEvent e) {
+            toolBar.setVisible(false);
+        }
+    });
+
+    @Override
+    public void mouseExited(MouseEvent e) {
+        t.restart();
+    }
+
+    public void stateChanged(ChangeEvent e) {
+        JViewport vp = (JViewport) e.getSource();
+        update(vp);
+
+    }
+
+    private final Timer recalculateTimer = new Timer(20, new ActionListener() {
+
+        public void actionPerformed(ActionEvent e) {
+            refresh();
+        }
+    });
+
+    protected void update(JViewport viewPort) {
+        if (isVisible()) {
+            JScrollPane pane = (JScrollPane) viewPort.getParent();
+            int width = viewPort.getWidth();
+            int height = viewPort.getHeight();
+
+            int size = Math.min(width, height) - 25;
+            setSize(size, size);
+            setBounds(0, 0, size, size);
+
+            setLocation(pane.getHorizontalScrollBar().getValue() + width / 2 - size / 2, pane.getVerticalScrollBar().getValue() + height / 2 - size / 2);
+
+            repaint();
+            if (recalculateTimer.isRunning()) {
+                recalculateTimer.restart();
+            } else {
+                recalculateTimer.start();
+            }
+        }
+
+    }
+
+    private void refresh() {
+        if (mat != null) {
+            renderer.showMaterial(mat);
+        }
+    }
+
+}

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/Bundle.properties

@@ -3,3 +3,9 @@ ShaderEditPanel.shaderEditorPane.text=
 ShaderEditPanel.closeButton.toolTipText=Close this panel
 ShaderEditPanel.jToggleButton1.text=jToggleButton1
 ShaderEditPanel.headerText.text=jLabel1
+BackdropPanel.sphereButton.toolTipText=Sphere
+BackdropPanel.expandButton.toolTipText=Hide Backdrop
+BackdropPanel.quadButton.toolTipText=Quad
+BackdropPanel.reloadButton.toolTipText=Refresh
+BackdropPanel.boxButton.toolTipText=Cube
+BackdropPanel.bringToFrontButton.toolTipText=Toggle back/front

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/Diagram.java

@@ -40,6 +40,7 @@ import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JPopupMenu;
 import javax.swing.JSeparator;
+import javax.swing.JViewport;
 import javax.swing.SwingUtilities;
 import javax.swing.border.Border;
 import javax.swing.border.TitledBorder;
@@ -56,15 +57,17 @@ public class Diagram extends JPanel implements MouseListener, MouseMotionListene
     protected List<Connection> connections = new ArrayList<Connection>();
     protected List<NodePanel> nodes = new ArrayList<NodePanel>();
     protected List<OutBusPanel> outBuses = new ArrayList<OutBusPanel>();
-    private MyMenu contextMenu = new MyMenu("Add");
+    private final MyMenu contextMenu = new MyMenu("Add");
     private MatDefEditorlElement parent;
     private String currentTechniqueName;
+    private final BackdropPanel backDrop = new BackdropPanel();
 
+    @SuppressWarnings("LeakingThisInConstructor")
     public Diagram() {
 
         addMouseListener(this);
         addMouseMotionListener(this);
-        createPopupMenu();
+        createPopupMenu();        
     }
 
     @Override
@@ -99,9 +102,23 @@ public class Diagram extends JPanel implements MouseListener, MouseMotionListene
 
     public void refreshPreviews(Material mat) {
         for (OutBusPanel outBusPanel : outBuses) {
-            outBusPanel.updatePreview(mat);
+            outBusPanel.updatePreview(mat);            
+        }
+        if(backDrop.isVisible()){
+            backDrop.showMaterial(mat);
         }
     }
+    
+    public void displayBackdrop(){
+        if(backDrop.getParent()== null){
+            add(backDrop);
+            ((JViewport)getParent()).addChangeListener(backDrop);
+        }
+        
+        backDrop.setVisible(true);
+        backDrop.update(((JViewport)getParent()));
+    }
+    
     Point clickLoc = new Point(0, 0);
 
     @Override

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatPanel.form

@@ -216,7 +216,7 @@
             <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
               <Image iconType="3" name="/com/jme3/gde/materialdefinition/icons/expend.png"/>
             </Property>
-            <Property name="toolTipText" type="java.lang.String" value="Expand"/>
+            <Property name="toolTipText" type="java.lang.String" value="Display Backdrop"/>
             <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
               <Border info="null"/>
             </Property>
@@ -240,7 +240,6 @@
           <Events>
             <EventHandler event="mouseEntered" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="expandButtonMouseEntered"/>
             <EventHandler event="mouseExited" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="expandButtonMouseExited"/>
-            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="expandButtonActionPerformed"/>
           </Events>
         </Component>
       </SubComponents>

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatPanel.java

@@ -20,10 +20,9 @@ import javax.swing.Timer;
  *
  * @author Nehon
  */
-public class MatPanel extends javax.swing.JPanel implements MouseListener,ComponentListener {
+public class MatPanel extends javax.swing.JPanel implements MouseListener, ComponentListener {
-
     
-    private MaterialPreviewRenderer renderer;
+    private final MaterialPreviewRenderer renderer;
     private Material mat;
     /**
      * Creates new form PreviewPanel
@@ -36,18 +35,19 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
         renderer = new MaterialPreviewRenderer(previewLabel);
     }
     
-    public void cleanup(){
+    public void cleanup() {
-        renderer.cleanUp();
+        renderer.cleanUp();        
-        cleanup();
     }
     
     public void showMaterial(Material mat) {
         this.mat = mat;
-        renderer.showMaterial(mat);
+        renderer.showMaterial(mat);       
     }
-    
-    
 
+    public void setExpandActionListener(ActionListener action){        
+        expandButton.addActionListener(action);
+    }
+    
     /**
      * This method is called from within the constructor to initialize the form.
      * WARNING: Do NOT modify this code. The content of this method is always
@@ -176,7 +176,7 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
 
         expandButton.setBackground(new java.awt.Color(153, 153, 153));
         expandButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/com/jme3/gde/materialdefinition/icons/expend.png"))); // NOI18N
-        expandButton.setToolTipText("Expand");
+        expandButton.setToolTipText("Display Backdrop");
         expandButton.setBorder(null);
         expandButton.setBorderPainted(false);
         expandButton.setContentAreaFilled(false);
@@ -194,11 +194,6 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
                 expandButtonMouseExited(evt);
             }
         });
-        expandButton.addActionListener(new java.awt.event.ActionListener() {
-            public void actionPerformed(java.awt.event.ActionEvent evt) {
-                expandButtonActionPerformed(evt);
-            }
-        });
 
         javax.swing.GroupLayout toolBarLayout = new javax.swing.GroupLayout(toolBar);
         toolBar.setLayout(toolBarLayout);
@@ -246,10 +241,6 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
         previewLabel.setBounds(20, 20, 100, 100);
     }// </editor-fold>//GEN-END:initComponents
 
-    private void expandButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_expandButtonActionPerformed
-        // TODO add your handling code here:
-    }//GEN-LAST:event_expandButtonActionPerformed
-
     private void expandButtonMouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_expandButtonMouseEntered
         mouseEntered(SwingUtilities.convertMouseEvent(expandButton, evt, this));
     }//GEN-LAST:event_expandButtonMouseEntered
@@ -321,15 +312,15 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
     @Override
     public void mouseClicked(MouseEvent e) {
     }
-
+    
     @Override
     public void mousePressed(MouseEvent e) {
     }
-
+    
     @Override
     public void mouseReleased(MouseEvent e) {
     }
-
+    
     @Override
     public void mouseEntered(MouseEvent e) {
         toolBar.setVisible(true);
@@ -341,37 +332,37 @@ public class MatPanel extends javax.swing.JPanel implements MouseListener,Compon
             toolBar.setVisible(false);
         }
     });
-
+    
     @Override
     public void mouseExited(MouseEvent e) {
         t.restart();
     }
     
-     @Override
+    @Override
     public void componentResized(ComponentEvent e) {
         update(e.getComponent());
     }
-
+    
     @Override
     public void componentMoved(ComponentEvent e) {
         update(e.getComponent());
     }
-
+    
     @Override
     public void componentShown(ComponentEvent e) {
-         update(e.getComponent());
+        update(e.getComponent());
     }
-
+    
     @Override
     public void componentHidden(ComponentEvent e) {
     }
-
+    
     protected void update(Component c) {
         setLocation(c.getLocation().x + c.getWidth() - 150, c.getLocation().y + 10 - 120);
     }
-
+    
     private void refresh() {
-        if(mat!=null){
+        if (mat != null) {
             renderer.showMaterial(mat);
         }
     }

sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/OutBusPanel.java

@@ -16,6 +16,8 @@ import java.awt.LinearGradientPaint;
 import java.awt.Point;
 import java.awt.Polygon;
 import java.awt.RenderingHints;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
 import java.awt.event.MouseEvent;
@@ -81,11 +83,18 @@ public class OutBusPanel extends DraggablePanel implements ComponentListener, Se
     }
 
     @Override
-    public void setDiagram(Diagram diagram) {
+    public void setDiagram(final Diagram diagram) {
         super.setDiagram(diagram);
         // preview.setBounds(350,300,128,100);
         diagram.add(preview);
         preview.update(this);
+        preview.setExpandActionListener(new ActionListener() {
+
+            public void actionPerformed(ActionEvent e) {
+                diagram.displayBackdrop();
+            }
+        });
+        
     }
 
     @Override