/** * This is the hook through which all menu items are created. It registers the result with the * menuitem hashtable so that it can be fetched with getMenuItem(). * * @see #getMenuItem */ protected JMenuItem createMenuItem(String cmd) { JMenuItem mi = new JMenuItem(getResourceString(cmd + labelSuffix)); URL url = getResource(cmd + imageSuffix); if (url != null) { mi.setHorizontalTextPosition(JButton.RIGHT); mi.setIcon(new ImageIcon(url)); } String astr = getResourceString(cmd + actionSuffix); if (astr == null) { astr = cmd; } mi.setActionCommand(astr); Action myaction = getAction(astr); // if this is a known action if (myaction != null) { mi.addActionListener(myaction); myaction.addPropertyChangeListener(createActionChangeListener(mi)); // System.out.println("myaction not null: astr:"+astr+" enabled:"+myaction.isEnabled()); mi.setEnabled(myaction.isEnabled()); } else { System.err.println("Error:TextViewer: createMenuItem: myaction is null: astr:" + astr); // causes the item to be greyed out mi.setEnabled(false); } menuItems.put(cmd, mi); return mi; }
/** * Factory method which creates the <code>JMenuItem</code> for <code>Actions</code> added to the * <code>JPopupMenu</code>. * * @param a the <code>Action</code> for the menu item to be added * @return the new menu item * @see Action * @since 1.3 */ protected JMenuItem createActionComponent(Action a) { JMenuItem mi = new JMenuItem() { protected PropertyChangeListener createActionPropertyChangeListener(Action a) { PropertyChangeListener pcl = createActionChangeListener(this); if (pcl == null) { pcl = super.createActionPropertyChangeListener(a); } return pcl; } }; mi.setHorizontalTextPosition(JButton.TRAILING); mi.setVerticalTextPosition(JButton.CENTER); return mi; }
/** This is the hook through which all menu items are created. */ protected JMenuItem createMenuItem(String cmd) { JMenuItem mi = new JMenuItem(getResourceString(cmd + labelSuffix)); URL url = getResource(cmd + imageSuffix); if (url != null) { mi.setHorizontalTextPosition(JButton.RIGHT); mi.setIcon(new ImageIcon(url)); } String astr = getProperty(cmd + actionSuffix); if (astr == null) { astr = cmd; } mi.setActionCommand(astr); Action a = getAction(astr); if (a != null) { mi.addActionListener(a); a.addPropertyChangeListener(createActionChangeListener(mi)); mi.setEnabled(a.isEnabled()); } else { mi.setEnabled(false); } return mi; }