Java Swing - O Reilly These overridden Container methods (Web hosting solutions)
Java Swing - O Reilly These overridden Container methods ensure the editor pane behaves properly and does not adversely affect the component using the editor or the editor itself. The paint() and update() methods are both empty and the documentation states that they should not be called. public void paintComponent(Graphics g, Component c, Container p, Rectangle r) public void paintComponent(Graphics g, Component c, Container p, int x, int y, int w,int h) public void paintComponent(Graphics g, Component c, Container p, int x, int y, int w,int h, boolean shouldValidate) These methods do the actual work of painting the component c on the graphics context g. These methods provide the implementation for the methods of the same signatures in the SwingUtilities class, discussed previously in this chapter. The shouldValidate parameter determines whether or not c is validated before it is painted. (The first two methods end up calling the third with a false value for shouldValidate.) 27.2.1.5 Inner Classes protected class CellRendererPane.AccessibleCellRendererPane extends AccessibleContext implements Serializable, AccessibleComponent This class defines the accessible role object for CellRendererPane. 27.2.2 The CellEditor Interface This interface governs the basic functionality required of an editor. It has methods for retrieving a new value and determining when to start and stop editing. The basic process for editing is: The user clicks the required number of times on the cell (varies from editor to editor). The component (usually JTree or JTable) replaces the cell with its editor. The user types or chooses a new value. The user ends the editing session (e.g., hitting enter in a textfield). The editor fires a change event to interested listeners (usually the tree or table containing the cell), stating that editing is finished. The component reads the new value and replaces the editor with the cell’s renderer. 27.2.2.1 Events The CellEditor interface requires methods for adding and removing cell editor listeners, which are objects interested in finding out whether editing is finished or cancelled. The CellEditorListener class is discussed below. public abstract void addCellEditorListener(CellEditorListener l) public abstract void removeCellEditorListener(CellEditorListener l) 27.2.2.2 Methods public Object getCellEditorValue() Accesses the only property of a cell editor, which is the cell’s current value. After successful editing, a table or tree will call this method to retrieve the new value for the cell. - 924
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