/**
* Gets the <code>defaultLightWeightPopupEnabled</code> property, which by default is <code>true
* </code>.
*
* @return the value of the <code>defaultLightWeightPopupEnabled</code> property
* @see #setDefaultLightWeightPopupEnabled
*/
public static boolean getDefaultLightWeightPopupEnabled() {
Boolean b = (Boolean) SwingUtilities.appContextGet(defaultLWPopupEnabledKey);
if (b == null) {
SwingUtilities.appContextPut(defaultLWPopupEnabledKey, Boolean.TRUE);
return true;
}
return b.booleanValue();
}
/**
* Overrides <code>JComponent.removeNotify</code> to check if this button is currently set as the
* default button on the <code>RootPane</code>, and if so, sets the <code>RootPane</code>'s
* default button to <code>null</code> to ensure the <code>RootPane</code> doesn't hold onto an
* invalid button reference.
*/
public void removeNotify() {
JRootPane root = SwingUtilities.getRootPane(this);
if (root != null && root.getDefaultButton() == this) {
root.setDefaultButton(null);
}
super.removeNotify();
}
/**
* Gets the value of the <code>defaultButton</code> property, which if <code>true</code> means
* that this button is the current default button for its <code>JRootPane</code>. Most look and
* feels render the default button differently, and may potentially provide bindings to access the
* default button.
*
* @return the value of the <code>defaultButton</code> property
* @see JRootPane#setDefaultButton
* @see #isDefaultCapable
* @beaninfo description: Whether or not this button is the default button
*/
public boolean isDefaultButton() {
JRootPane root = SwingUtilities.getRootPane(this);
if (root != null) {
return root.getDefaultButton() == this;
}
return false;
}
private boolean checkRightMargin(int w) {
// Make sure rightMargin has at least 2 pixels over
if (w + 2 > rightMargin) {
rightMargin = (w + 2);
// Repaint from top (above any cell renderers)
SwingUtilities.getWindowAncestor(this).repaint();
return true;
}
return false;
}
private boolean checkLeftMargin(int x) {
// Make sure leftMargin has at least 2 pixels over
if (x < 2) {
leftMargin += (2 - x);
// Repaint from top (above any cell renderers)
SwingUtilities.getWindowAncestor(this).repaint();
return true;
}
return false;
}
public void actionPerformed(ActionEvent e) {
if (owner != null && SwingUtilities.getRootPane(owner) == root) {
ButtonModel model = owner.getModel();
if (press) {
model.setArmed(true);
model.setPressed(true);
} else {
model.setPressed(false);
}
}
}
/**
* {@inheritDoc}
*
* @since 1.7
*/
public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h) {
if (!isShowing()) {
return false;
}
// Check that there is a label with such image
Enumeration elements = labelTable.elements();
while (elements.hasMoreElements()) {
Component component = (Component) elements.nextElement();
if (component instanceof JLabel) {
JLabel label = (JLabel) component;
if (SwingUtilities.doesIconReferenceImage(label.getIcon(), img)
|| SwingUtilities.doesIconReferenceImage(label.getDisabledIcon(), img)) {
return super.imageUpdate(img, infoflags, x, y, w, h);
}
}
}
return false;
}
@SuppressWarnings("unchecked")
private static JButton getButton(JList list, Point pt, int index) {
Container c =
(Container)
list.getCellRenderer().getListCellRendererComponent(list, "", index, false, false);
Rectangle r = list.getCellBounds(index, index);
c.setBounds(r);
// c.doLayout(); //may be needed for mone LayoutManager
pt.translate(-r.x, -r.y);
Component b = SwingUtilities.getDeepestComponentAt(c, pt.x, pt.y);
if (b instanceof JButton) {
return (JButton) b;
} else {
return null;
}
}
/**
* Sets the {@code transferHandler} property, which is a mechanism to support transfer of data
* into this component. Use {@code null} if the component does not support data transfer
* operations.
*
* <p>If the system property {@code suppressSwingDropSupport} is {@code false} (the default) and
* the current drop target on this component is either {@code null} or not a user-set drop target,
* this method will change the drop target as follows: If {@code newHandler} is {@code null} it
* will clear the drop target. If not {@code null} it will install a new {@code DropTarget}.
*
* <p>Note: When used with {@code JApplet}, {@code TransferHandler} only provides data import
* capability, as the data export related methods are currently typed to {@code JComponent}.
*
* <p>Please see <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/dnd.html">How to
* Use Drag and Drop and Data Transfer</a>, a section in <em>The Java Tutorial</em>, for more
* information.
*
* @param newHandler the new {@code TransferHandler}
* @see TransferHandler
* @see #getTransferHandler
* @see java.awt.Component#setDropTarget
* @since 1.6
* @beaninfo bound: true hidden: true description: Mechanism for transfer of data into the
* component
*/
public void setTransferHandler(TransferHandler newHandler) {
TransferHandler oldHandler = transferHandler;
transferHandler = newHandler;
SwingUtilities.installSwingDropTargetAsNecessary(this, transferHandler);
firePropertyChange("transferHandler", oldHandler, newHandler);
}
/**
* Sets the default value of the <code>lightWeightPopupEnabled</code> property.
*
* @param aFlag <code>true</code> if popups can be lightweight, otherwise <code>false</code>
* @see #getDefaultLightWeightPopupEnabled
* @see #setLightWeightPopupEnabled
*/
public static void setDefaultLightWeightPopupEnabled(boolean aFlag) {
SwingUtilities.appContextPut(defaultLWPopupEnabledKey, Boolean.valueOf(aFlag));
}