re design History UI and undoRedoDialog

Author: kaijiec

src/ui/helper/historyui/HistoryUI.java

@@ -100,28 +100,6 @@ protected void addButtons(CustomJButton b){
 		//getButton_panel().repaint();
 	}
 
-
-	protected void setButtons(String[] titles){
-		// add small JPanel for buttons
-
-
-		//loop through arr and add buttons
-		for (String title : titles){
-			JButton button = new JButton(title);
-			getButton_panel().add(button);
-			getButtonArray().add(button);
-			button.setEnabled(false);
-			button.addActionListener(new ActionListener() {
-				
-				@Override
-				public void actionPerformed(ActionEvent e) {
-					delegate.didPressButton(title, getResultsTable().getSelectedRow());
-				}
-			});
-		}
-	}
-
-	
 	protected void setSelectionMode(){
 		getResultsTable().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 	}

src/ui/helper/historyui/undoredoLog/UndoredoDialog.java

@@ -113,8 +113,8 @@ public void didPressButton(String buttonName, int selectedRow) {
 	}
 
 	/**
-	 * disable undoButton when there is no actions to be undo
-	 * disable redoButton when there is no actions to be redo
+	 * disable undoButton when there is no actions to undo
+	 * disable redoButton when there is no actions to redo
 	 */
 	public void updateButtonStatus(){
 		if(getIndex() == -1 || getNumRow() == 0){