painting issue fix

diy-layout-creator --username bancika@gmail.com/DIYLC/src/com/diyfever/diylc/DIYLCStarter.java

@@ -29,7 +29,7 @@ public class DIYLCStarter {
 		} catch (IOException e) {
 			e.printStackTrace();
 		}
-		
+
 		url = DIYLCStarter.class.getResource("config.properties");
 		properties = new Properties();
 		try {

diy-layout-creator --username bancika@gmail.com/DIYLC/src/com/diyfever/diylc/gui/MainFrame.java

@@ -17,6 +17,7 @@ import javax.swing.JMenu;
 import javax.swing.JMenuBar;
 import javax.swing.JPanel;
 import javax.swing.SwingConstants;
+import javax.swing.SwingUtilities;
 
 import com.diyfever.diylc.common.BadPositionException;
 import com.diyfever.diylc.model.Project;
@@ -44,6 +45,8 @@ public class MainFrame extends JFrame implements IView {
 	private JMenuBar mainMenuBar;
 	private Map<String, JMenu> menuMap;
 
+	private CanvasPlugin canvasPlugin;
+
 	public MainFrame() {
 		super("DIYLC4");
 		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
@@ -63,7 +66,7 @@ public class MainFrame extends JFrame implements IView {
 		presenter.installPlugin(new HelpManager());
 
 		presenter.installPlugin(new StatusBar());
-		CanvasPlugin canvasPlugin = new CanvasPlugin();
+		canvasPlugin = new CanvasPlugin();
 		presenter.installPlugin(canvasPlugin);
 
 		Project project = new Project();
@@ -82,13 +85,26 @@ public class MainFrame extends JFrame implements IView {
 				presenter.dispose();
 			}
 		});
-		// TODO: hack to fix painting issues with rulers in the scroll pane.
+
-		// Find a better solution if possible.
-		canvasPlugin.refresh();
 		// setGlassPane(new CustomGlassPane());
 		// getGlassPane().setVisible(true);
 	}
 
+	@Override
+	public void setVisible(boolean b) {
+		super.setVisible(b);
+		// TODO: hack to prevent painting issues in the scroll bar rulers. Find
+		// a better fix if possible.
+		if (b) {
+			SwingUtilities.invokeLater(new Runnable() {
+				@Override
+				public void run() {
+					canvasPlugin.refresh();
+				}
+			});
+		}
+	}
+
 	private void createBasePanels() {
 		Container c = new Container();
 		c.setLayout(new BorderLayout());

diy-layout-creator --username bancika@gmail.com/DIYLC/src/com/diyfever/diylc/plugins/canvas/CanvasPlugin.java

@@ -113,7 +113,9 @@ public class CanvasPlugin implements IPlugIn {
 	 */
 	public void refresh() {
 		MouseEvent event = new MouseEvent(canvasPanel, MouseEvent.MOUSE_MOVED, System
-				.currentTimeMillis(), 0, 0, 0, 0, false);
+				.currentTimeMillis(), 0, 1, 1,// canvasPanel.getWidth() / 2,
+												// canvasPanel.getHeight() / 2,
+				0, false);
 		canvasPanel.dispatchEvent(event);
 	}
 }