propertysheet.java

具有不同语法高亮的编辑器实例

/*****************************************************************************/


	/**
	 * Notifies all registered listeners that a displayed property has
	 * changed.
	 *
	 * @param info Information on the changed property.
	 */
	protected void fireDisplayedPropertyChanged(final PropertyInfo info) {
		// Guaranteed to return a non-null array
		Object[] listeners = listenerList.getListenerList();
		DisplayedPropertyChangeEvent e =
			new DisplayedPropertyChangeEvent(this, info);
		// Process the listeners last to first, notifying
		// those that are interested in this event.
		for (int i=listeners.length-2; i>=0; i-=2) {
			if (listeners[i]==PropertySheetListener.class) {
				((PropertySheetListener)listeners[i+1]).
									displayedPropertyChanged(e);
			}
		}
	}


/*****************************************************************************/


	/**
	 * Gets the properties of the specified JavaBean and sets the values
	 * displayed by this property sheet.
	 *
	 * @param bean A JavaBean.  This must be of the same class as the class
	 *        passed into the constructor.
	 * @see #setPropertiesOfBean
	 * @throws BeanNotRepresentedException If this property sheet isn't
	 *         explicitly being used to represent a JavaBean.
	 */
	public void getPropertiesOfBean(Object bean)
							throws BeanNotRepresentedException {

		// Ensure we're modeling a JavaBean.
		if (!isInitializedByBean()) {
			throw new BeanNotRepresentedException("A bean is not being " +
				"represented by this property sheet");
		}

		// Ensure the passed-in bean is of the right type.
		Class clazz = bean.getClass();
		Class beanInfoClass = beanInfo.getBeanDescriptor().getBeanClass();
		if (!clazz.equals(beanInfoClass)) {
			throw new IllegalArgumentException("JavaBean is wrong class: " +
				"expected " + clazz + ", received " + beanInfoClass);
		}

		//int propertyCount = container.getPropertyCount();
		PropertyDescriptor[] descriptors = beanInfo.getPropertyDescriptors();
		int propertyCount = descriptors==null ? 0 : descriptors.length;
		for (int i=0; i<propertyCount; i++) {
			Method getter = descriptors[i].getReadMethod();
			if (getter!=null) {
				try {
					// NOTE:  We're ASSUMING a no-parameter getter!!!
					// We should really check param count, but how would
					// we get parameter values??
					Object result = getter.invoke(bean, null);
					PropertyInfo pi = propertyTableContainer.getPropertyInfo(
										descriptors[i].getName());
					if (pi!=null) {
						// Set default value too as it's what we have as
						// the "default".
						pi.setValue(result);
						pi.setDefaultValue(result);
					}
				} catch (Exception e) {
					System.out.println(descriptors[i].getName());
					e.printStackTrace();
				}
			}
		}

	}


/*****************************************************************************/


	/**
	 * Initializes this property sheet.  This is called by all constructors.
	 *
	 * @param sortedByCategory Whether the properties should be sorted by
	 *        category.
	 */
	protected void initialize(boolean sortedByCategory) {

		listenerList = new EventListenerList();

		setLayout(new BorderLayout());
		add(createToolBar(sortedByCategory), BorderLayout.NORTH);
		setBackground(PropertySheetUtilities.getPropertyColor());
setBackground(Color.MAGENTA);

		// Create the panel actually containing our properties.
		interiorPanel = new JPanel();
interiorPanel.setBackground(Color.RED);
		interiorPanel.setLayout(new BoxLayout(interiorPanel, BoxLayout.Y_AXIS));
		propertyTableContainer = new PropertyTableContainer(sortedByCategory);
		interiorPanel.add(propertyTableContainer);
		MainPanel mp = new MainPanel(new BorderLayout());
		mp.add(interiorPanel, BorderLayout.NORTH);
//		JScrollPane scrollPane = new JScrollPane(mp);
javax.swing.JViewport viewport = new javax.swing.JViewport() {
	public void paintComponent(Graphics g) {
		super.paintComponent(g);
		g.setColor(PropertySheetUtilities.getPropertyColor());
		Rectangle bounds = getBounds();
		g.fillRect(0,0, bounds.width, bounds.height);
	}
};
JScrollPane scrollPane = new JScrollPane();
scrollPane.setViewport(viewport);
scrollPane.setViewportView(mp);
		// Create the panel below containing information on the selected
		// property.
		infoPanel = new InfoPanel();

		// Add them to our split pane and we're done!
		JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,
										scrollPane, infoPanel);
		splitPane.setResizeWeight(0.6);
		splitPane.setContinuousLayout(true);
		splitPane.setOneTouchExpandable(true);
		add(splitPane);

	}


/*****************************************************************************/


	/**
	 * Returns whether a JavaBean class has been used to set the properties in
	 * this property sheet; if it has, then no more properties can be added.
	 *
	 * @return Whether this property sheet represents a JavaBean.
	 */
	private boolean isInitializedByBean() {
		return beanInfo!=null;
	}


/*****************************************************************************/


	/**
	 * Returns whether the columns in this property sheet are being resized.
	 *
	 * @return Whether the columns in this property sheet are being resized.
	 */
	boolean isResizingColumns() {
		return columnResizing;
	}


/*****************************************************************************/


	/**
	 * Returns whether or not the properties are sorted by category.
	 *
	 * @return Whether the properties are sorted by category.
	 * @see #setSortByCategory
	 */
	public boolean getSortByCategory() {
		return propertyTableContainer.getSortByCategory();
	}


/*****************************************************************************/


	/**
	 * Removes the specified property sheet listener.
	 *
	 * @param l The listener to remove.
	 * @see #addPropertySheetListener
	 */
	public void removePropertySheetListener(PropertySheetListener l) {
		listenerList.remove(PropertySheetListener.class, l);
	}


/*****************************************************************************/


	/**
	 * Resizes the columns such that the first column is the specified width,
	 * and the second column is the remaining space in the table.
	 *
	 * @param width The new width for the first column.
	 * @see #beginResizingColumns
	 * @see #endResizingColumns
	 */
	void resizeColumns(int width) {
		if (isResizingColumns()) {
			propertyTableContainer.resizeColumns(width);
		}
	}


/*****************************************************************************/


	/**
	 * Callback for whenever a property is selected.
	 *
	 * @param e The selected property event.
	 */
	public void selectedPropertyChanged(SelectedPropertyEvent e) {
		infoPanel.setPropertyInfo(e);
	}


/*****************************************************************************/


	/**
	 * Sets the properties of the specified JavaBean to the values represented
	 * in this property sheet.
	 *
	 * @param bean A JavaBean.  This must be of the same class as the class
	 *        passed into the constructor.
	 * @see #getPropertiesOfBean
	 * @throws BeanNotRepresentedException If this property sheet isn't
	 *         explicitly being used to represent a JavaBean.
	 */
	public void setPropertiesOfBean(Object bean)
							throws BeanNotRepresentedException {

		// Ensure we're editing a JavaBean.
		if (!isInitializedByBean()) {
			throw new BeanNotRepresentedException(
									"JavaBean not represented");
		}

		// Ensure the passed-in bean is of the right type.
		Class clazz = bean.getClass();
		Class beanInfoClass = beanInfo.getBeanDescriptor().getBeanClass();
		if (!clazz.equals(beanInfoClass)) {
			throw new IllegalArgumentException("JavaBean is wrong class: " +
				"expected " + clazz + ", received " + beanInfoClass);
		}

		propertyTableContainer.setBeanProperties(bean);

	}


/*****************************************************************************/


	public void setSortByCategory(boolean sortByCategory) {
		propertyTableContainer.setSortByCategory(sortByCategory);
	}


/*****************************************************************************/
/*********************** INNER CLASSES ***************************************/
/*****************************************************************************/


	private class Listener implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			String command = e.getActionCommand();
			if (command.equals(ALPHABETICAL)) {
				setSortByCategory(false);
			}
			else if (command.equals(CATEGORIES)) {
				setSortByCategory(true);
			}
			else if (command.equals(EVENTS)) {
			}
			else if (command.equals(PROPERTIES)) {
			}
		}

	}


/*****************************************************************************/


	private static class MainPanel extends JPanel implements Scrollable {

		/**
	 * 
	 */
	private static final long serialVersionUID = -5398399362948762890L;
		public static final int ROW_COUNT	= 12;

		public MainPanel(LayoutManager layout) {
			super(layout);
		}

		public Dimension getPreferredScrollableViewportSize() {
			Dimension size = getPreferredSize();
			size.height = PROPERTY_ROW_HEIGHT * ROW_COUNT;
			return size;
		}

		public int getScrollableBlockIncrement(Rectangle visibleRect,
									int orientation, int direction) {
			switch (orientation) {
				case SwingConstants.VERTICAL:
					return getVisibleRect().height;
				case SwingConstants.HORIZONTAL:
					return getVisibleRect().width;
			}
			return 1; // Should never happen.
		}

		public boolean getScrollableTracksViewportHeight() {
			return false;
		}

		public boolean getScrollableTracksViewportWidth() {
			return true;
		}

		public int getScrollableUnitIncrement(Rectangle visibleRect,
									int orientation, int direction) {
			switch (orientation) {
				case SwingConstants.VERTICAL:
					return PROPERTY_ROW_HEIGHT;
				case SwingConstants.HORIZONTAL:
					return 10; // Arbitrary.
			}
			return 1; // Should never happen.
		}

		protected void paintComponent(Graphics g) {
			super.paintComponent(g);
			g.setColor(PropertySheetUtilities.getPropertyColor());
			Rectangle bounds = getBounds();
			g.fillRect(20,0, bounds.width-20,bounds.height);
		}

	}


/*****************************************************************************/

}