improved d&d

fixed deadlock

diy-layout-creator --username bancika@gmail.com/DIYLC/config.xml

@@ -20,12 +20,12 @@
       </entry>
     </map>
   </entry>
+  <entry>
+    <string>metric</string>
+    <boolean>false</boolean>
+  </entry>
   <entry>
     <string>lastPath</string>
     <string>C:\Documents and Settings\Branislav Stojkovic\Desktop</string>
   </entry>
-  <entry>
-    <string>metric</string>
-    <boolean>true</boolean>
-  </entry>
 </map>

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

@@ -16,6 +16,7 @@ import java.awt.dnd.DropTarget;
 import java.awt.event.ActionEvent;
 import java.awt.event.ComponentAdapter;
 import java.awt.event.ComponentEvent;
+import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
@@ -120,7 +121,7 @@ class CanvasPanel extends JComponent implements Autoscroll {
 				}
 				g.drawImage(bufferImage, 0, 0, this);
 			} catch (NullPointerException e) {
-				// Do nothing, it will be recreated in the next pass.
+				createBufferImage();
 			}
 		} while (bufferImage == null || bufferImage.contentsLost());
 	}
@@ -139,6 +140,14 @@ class CanvasPanel extends JComponent implements Autoscroll {
 				invalidate();
 			}
 		});
+		addKeyListener(new KeyAdapter() {
+			
+			@Override
+			public void keyPressed(KeyEvent e) {
+				plugInPort.mouseMoved(getMousePosition(), e.isControlDown(), e.isShiftDown(), e
+						.isAltDown());
+			}
+		});
 		addMouseMotionListener(new MouseAdapter() {
 
 			@Override

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

@@ -76,6 +76,16 @@ public class ComponentProcessor {
 		return cloner.deepClone(properties);
 	}
 
+	/**
+	 * Reads all control points from the specified component class. Note than
+	 * control points are cached, so it may happen that control points returned
+	 * already have their values populated. Always use
+	 * {@link ControlPointWrapper#readFrom(IComponentInstance)} to update their
+	 * state from an actual component.
+	 * 
+	 * @param clazz
+	 * @return
+	 */
 	public List<ControlPointWrapper> extractControlPoints(Class<? extends IComponentInstance> clazz) {
 		if (controlPointCache.containsKey(clazz)) {
 			return cloner.deepClone(controlPointCache.get(clazz));

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

@@ -400,6 +400,10 @@ public class Presenter implements IPlugInPort {
 					}
 				}
 			}
+			// If CTRL is pressed, we only care about the top most component.
+			if (altDown && components.size() > 0) {
+				break;
+			}
 		}
 		if (!components.equals(componentsUnderCursor)) {
 			componentsUnderCursor = components;