checks for file modifications

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/common/EventType.java

@@ -26,6 +26,12 @@ public enum EventType {
 	 * or loaded with undo/redo operations.
 	 */
 	PROJECT_LOADED,
+	/**
+	 * Called when either current file name or modified flag are changed. The
+	 * first parameter is the current file name, the second one is a boolean
+	 * modified flag.
+	 */
+	FILE_STATUS_CHANGED,
 	/**
 	 * Called when selection rectangle is changed. Object of type
 	 * {@link Rectangle} is the only parameter and it contains the new selection

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/common/IPlugInPort.java

@@ -73,6 +73,18 @@ public interface IPlugInPort {
 	 * @param freshStart
 	 */
 	void loadProject(Project project, boolean freshStart);
+	
+	void createNewProject();
+	
+	void loadProjectFromFile(String fileName);
+	
+	void saveProjectToFile(String fileName);
+	
+	String getCurrentFileName();
+	
+	boolean isProjectModified();
+	
+	boolean allowFileAction();
 
 	/**
 	 * Returns all available {@link ComponentType}s classified by category.