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/*
* @(#)JCellRendererPane.java 10/25/2005
*
* Copyright 2002 - 2005 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.swing;
import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleRole;
import javax.swing.*;
import java.awt.*;
import java.io.IOException;
import java.io.ObjectOutputStream;
/**
* Copied from CellRendererPane and make it extending JComponent so that tooltips of renderer works.
*
* @deprecated no longer used in other JIDE classes.
*/
@Deprecated
public class JCellRendererPane extends JComponent implements Accessible {
/**
* Construct a CellRendererPane object.
*/
public JCellRendererPane() {
super();
setLayout(null);
setVisible(false);
}
/**
* Overridden to avoid propagating a invalidate up the tree when the cell renderer child is configured.
*/
@Override
public void invalidate() {
}
/**
* Shouldn't be called.
*/
@Override
public void paint(Graphics g) {
}
/**
* Shouldn't be called.
*/
@Override
public void update(Graphics g) {
}
/**
* If the specified component is already a child of this then we don't bother doing anything - stacking order doesn't matter for cell renderer components (CellRendererPane doesn't paint anyway).<
*/
@Override
protected void addImpl(Component x, Object constraints, int index) {
if (x.getParent() == this) {
return;
}
else {
super.addImpl(x, constraints, index);
}
}
/**
* Paint a cell renderer component c on graphics object g. Before the component is drawn it's reparented to this (if that's necessary), it's bounds are set to w,h and the graphics object is
* (effectively) translated to x,y. If it's a JComponent, double buffering is temporarily turned off. After the component is painted it's bounds are reset to -w, -h, 0, 0 so that, if it's the last
* renderer component painted, it will not start consuming input. 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) && 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
*/
@Override
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.
*
* @return an instance of AccessibleRole describing the role of the object
*
* @see javax.accessibility.AccessibleRole
*/
@Override
public AccessibleRole getAccessibleRole() {
return AccessibleRole.PANEL;
}
} // inner class AccessibleCellRendererPane
}
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