/**
* Retrieves the currently selected legend in the tree and shows the corresponding dialog in the
* card layout; shows the empty panel if no legend is selected.
*/
protected void showDialogForCurrentlySelectedLegend() {
ISELegendPanel selected = legendTree.getSelectedPanel();
if (selected != null) {
cardLayout.show(dialogContainer, selected.getId());
} else {
cardLayout.show(dialogContainer, NO_LEGEND_ID);
}
}
/**
* Remove the given panel from the card layout and refresh the display.
*
* @param panel Panel
*/
public void legendRemoved(ISELegendPanel panel) {
cardLayout.removeLayoutComponent(panel.getComponent());
showDialogForCurrentlySelectedLegend();
}
// TODO: Should this method be moved to LegendTree?
public void legendAdded(ISELegendPanel panel) {
panel.setId(createNewID());
dialogContainer.add(panel.getId(), getJScrollPane(panel));
showDialogForCurrentlySelectedLegend();
}
/** Shows the dialog for the given legend in the card layout. */
protected void showDialogForLegend(ISELegendPanel selected) {
cardLayout.show(dialogContainer, selected.getId());
}
/**
* Gets a new {@link JScrollPane} on the given panel, setting the scroll increments appropriately.
*
* @param panel Panel
* @return A new {@link JScrollPane} on the given panel
*/
private JScrollPane getJScrollPane(ISELegendPanel panel) {
JScrollPane jsp = new JScrollPane(panel.getComponent());
jsp.getHorizontalScrollBar().setUnitIncrement(INCREMENT);
jsp.getVerticalScrollBar().setUnitIncrement(INCREMENT);
return jsp;
}