/**
* Show the given message in a dialog box or independent window, depending on whether the source
* component is contained in a Frame or not.
*
* @param c The Controller that calls this method, or null if it is not called by a Controller.
* (The Controller, if any, will be notified when the error message is cleared.)
* @param message The message to display.
*/
public void setErrorMessage(Controller c, String message) {
if (popup != null) clearErrorMessage();
if (message == null) return;
errorSource = c;
errorMessage = message;
Component parent = source;
while (parent != null && !(parent instanceof Frame)) parent = parent.getParent();
if (parent != null) popup = new Dialog((Frame) parent, "Error Message", true); // modal dialog
else popup = new Frame("Error Message"); // independent window
popup.setBackground(Color.white);
popup.add(new MC(message), BorderLayout.CENTER);
Panel buttonBar = new Panel();
buttonBar.setLayout(new FlowLayout(FlowLayout.RIGHT, 10, 10));
Button OK = new Button(" OK ");
OK.addActionListener(this);
buttonBar.add(OK);
popup.add(buttonBar, BorderLayout.SOUTH);
popup.pack();
if (parent == null) popup.setLocation(100, 80);
else popup.setLocation(parent.getLocation().x + 50, parent.getLocation().y + 30);
popup.addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
popup.dispose();
}
});
popup.show(); // make the dialog visible.
}
/**
* This method is used at the end of a drag session to place the frame in either its original
* parent as a docked JToolBar or in its floating frame.
*
* @param position The position of the mouse cursor relative to the JToolBar.
* @param origin The screen position of the JToolBar before the drag session started.
*/
protected void floatAt(Point position, Point origin) {
Point p = new Point(position);
int aoc = areaOfClick(origParent, SwingUtilities.convertPoint(toolBar, p, origParent));
Container oldParent = toolBar.getParent();
oldParent.remove(toolBar);
oldParent.doLayout();
oldParent.repaint();
Container newParent;
if (aoc == -1) newParent = ((RootPaneContainer) floatFrame).getContentPane();
else {
floatFrame.hide();
newParent = origParent;
}
String constraint;
switch (aoc) {
case SwingConstants.EAST:
constraint = BorderLayout.EAST;
break;
case SwingConstants.NORTH:
constraint = BorderLayout.NORTH;
break;
case SwingConstants.SOUTH:
constraint = BorderLayout.SOUTH;
break;
case SwingConstants.WEST:
constraint = BorderLayout.WEST;
break;
default:
constraint = BorderLayout.CENTER;
break;
}
int newOrientation = SwingConstants.HORIZONTAL;
if ((aoc != -1) && ((aoc == SwingConstants.EAST) || (aoc == SwingConstants.WEST)))
newOrientation = SwingConstants.VERTICAL;
if (aoc != -1) {
constraintBeforeFloating = constraint;
lastGoodOrientation = newOrientation;
}
newParent.add(toolBar, constraint);
setFloating(aoc == -1, null);
toolBar.setOrientation(newOrientation);
Insets insets = floatFrame.getInsets();
Dimension dims = toolBar.getPreferredSize();
p = dragWindow.getOffset();
setFloatingLocation(
(position.x + origin.x) - p.x - ((insets.left + insets.right) / 2),
(position.y + origin.y) - p.y - ((insets.top + insets.bottom) / 2));
if (aoc == -1) {
floatFrame.pack();
floatFrame.setSize(
dims.width + insets.left + insets.right, dims.height + insets.top + insets.bottom);
floatFrame.show();
}
newParent.invalidate();
newParent.validate();
newParent.repaint();
}