* The Container p is the component we're actually drawing on, typically it's
* equal to this.getParent(). If shouldValidate is true the component c will be
* validated before painted.
*/
public void paintComponent(Graphics g, Component c, Container p, int x, int y, int w, int h, boolean shouldValidate) {
if (c == null) {
if (p != null) {
Color oldColor = g.getColor();
g.setColor(p.getBackground());
g.fillRect(x, y, w, h);
g.setColor(oldColor);
}
return;
}
if (c.getParent() != this) {
this.add(c);
}
c.setBounds(x, y, w, h);
if(shouldValidate) {
c.validate();
}
boolean wasDoubleBuffered = false;
if ((c instanceof JComponent) && ((JComponent)c).isDoubleBuffered()) {
wasDoubleBuffered = true;
((JComponent)c).setDoubleBuffered(false);
}
Graphics cg = g.create(x, y, w, h);
try {
c.paint(cg);
}
finally {
cg.dispose();
}
if (wasDoubleBuffered && (c instanceof JComponent)) {
((JComponent)c).setDoubleBuffered(true);
}
c.setBounds(-w, -h, 0, 0);
}
/**
* Calls this.paintComponent(g, c, p, x, y, w, h, false).
*/
public void paintComponent(Graphics g, Component c, Container p, int x, int y, int w, int h) {
paintComponent(g, c, p, x, y, w, h, false);
}
/**
* Calls this.paintComponent() with the rectangles x,y,width,height fields.
*/
public void paintComponent(Graphics g, Component c, Container p, Rectangle r) {
paintComponent(g, c, p, r.x, r.y, r.width, r.height);
}
private void writeObject(ObjectOutputStream s) throws IOException {
removeAll();
s.defaultWriteObject();
}
/////////////////
// Accessibility support
////////////////
protected AccessibleContext accessibleContext = null;
/**
* Gets the AccessibleContext associated with this CellRendererPane.
* For CellRendererPanes, the AccessibleContext takes the form of an
* AccessibleCellRendererPane.
* A new AccessibleCellRendererPane instance is created if necessary.
*
* @return an AccessibleCellRendererPane that serves as the
* AccessibleContext of this CellRendererPane
*/
public AccessibleContext getAccessibleContext() {
if (accessibleContext == null) {
accessibleContext = new AccessibleCellRendererPane();
}
return accessibleContext;
}
/**
* This class implements accessibility support for the
* <code>CellRendererPane</code> class.
*/
protected class AccessibleCellRendererPane extends AccessibleAWTContainer {
// AccessibleContext methods
//
/**
* Get the role of this object.
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