Added Component Listener for resizing

Author: EdoFro

Tutorial-o-Matic/src/main/groovy/CustomComponentListener.groovy

@@ -0,0 +1,27 @@
+package edofro.tutorialomatic
+
+//import edofro.tutorialomatic.TabPane
+import edofro.tutorialomatic.ToM_ui      as tomui
+
+import java.awt.event.*
+
+
+
+class CustomComponentListener implements ComponentListener {
+    public void componentResized(ComponentEvent e) { //https://docs.oracle.com/javase/8/docs/api/java/awt/event/ComponentEvent.html
+        def comp = e.component
+        //ToM_ui.resizeContentPanel(comp, tomui.maxContentPaneHeigth)
+        sleep(100)
+        ToM_ui.resizeContentPanel(comp, comp.height + 500)
+      //  TabPane.repaint()
+    }
+    public void componentMoved(ComponentEvent e) {
+        // e.source.title =  " moved. "
+    }
+    public void componentShown(ComponentEvent e) {      
+        // e.source.title =  " shown. "
+    }
+    public void componentHidden(ComponentEvent e) {
+        // e.getSource().title =  " hidden. "
+    }
+}

Tutorial-o-Matic/src/main/groovy/ToM_ui.groovy

@@ -1,6 +1,7 @@
 package edofro.tutorialomatic
 
 import edofro.tutorialomatic.TabPane
+import edofro.tutorialomatic.CustomComponentListener
 
 import java.util.Timer
 
@@ -144,6 +145,7 @@ class ToM_ui{
                     layout: new GridBagLayout(),
                     // background: Color.gray
                 ){}
+            contentPane.addComponentListener(new CustomComponentListener())
             def panel =  swing.panel(
                     layout: new GridBagLayout(),
                     preferredSize: new Dimension(minContentPaneWidth, maxContentPaneHeigth),