/**
* Creates the wizard's title area.
*
* @param parent the SWT parent for the title area composite.
* @return the created title area composite.
*/
protected Composite createTitleArea(Composite parent) {
// Create the title area which will contain
// a title, message, and image.
int margins = 2;
titleArea = new Composite(parent, SWT.NONE);
FormLayout layout = new FormLayout();
layout.marginHeight = 0;
layout.marginWidth = margins;
titleArea.setLayout(layout);
GridData layoutData = new GridData(GridData.FILL_HORIZONTAL);
layoutData.verticalAlignment = SWT.TOP;
titleArea.setLayoutData(layoutData);
// Message label
messageArea = new DialogMessageArea();
messageArea.createContents(titleArea);
titleArea.addControlListener(
new ControlAdapter() {
@Override
public void controlResized(ControlEvent e) {
updateMessage();
}
});
final IPropertyChangeListener fontListener =
event -> {
if (JFaceResources.BANNER_FONT.equals(event.getProperty())) {
updateMessage();
}
if (JFaceResources.DIALOG_FONT.equals(event.getProperty())) {
updateMessage();
Font dialogFont = JFaceResources.getDialogFont();
updateTreeFont(dialogFont);
Control[] children = ((Composite) buttonBar).getChildren();
for (int i = 0; i < children.length; i++) {
children[i].setFont(dialogFont);
}
}
};
titleArea.addDisposeListener(
event -> JFaceResources.getFontRegistry().removeListener(fontListener));
JFaceResources.getFontRegistry().addListener(fontListener);
messageArea.setTitleLayoutData(createMessageAreaData());
messageArea.setMessageLayoutData(createMessageAreaData());
return titleArea;
}
/** Updates this dialog's controls to reflect the current page. */
protected void update() {
// Update the title bar
updateTitle();
// Update the message line
updateMessage();
// Update the buttons
updateButtons();
// Saved the selected node in the preferences
setSelectedNode();
firePageChanged(new PageChangedEvent(this, getCurrentPage()));
}