/** Adds validation overlay component to the control. */
private void addValidationOverlay(
final AttributeDescriptor descriptor,
final IAttributeEditor editor,
final Object defaultValue,
final Control label) {
final ControlDecoration decoration = new ControlDecoration(label, SWT.LEFT | SWT.BOTTOM);
decoration.hide();
final FieldDecoration requiredDecoration =
FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_ERROR);
decoration.setImage(requiredDecoration.getImage());
decoration.setDescriptionText("Invalid value");
final IAttributeListener validationListener =
new InvalidStateDecorationListener(decoration, descriptor, defaultValue);
globalEventsProvider.addAttributeListener(validationListener);
editor.addAttributeListener(validationListener);
label.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
globalEventsProvider.removeAttributeListener(validationListener);
editor.removeAttributeListener(validationListener);
decoration.dispose();
}
});
}
private void createUIFieldDecorationTemplate() {
// Decorate the combo with the info image
int bits = SWT.TOP | SWT.LEFT;
fControlDecoration = new ControlDecoration(fFieldTemplateCombo.getControl(), bits);
// Configure decoration
// No margin
fControlDecoration.setMarginWidth(0);
// Custom hover tip text
fControlDecoration.setDescriptionText(
PDEUIMessages.SplashConfigurationSection_msgDecorationTemplateSupport);
// Custom hover properties
fControlDecoration.setShowHover(true);
// Hover image to use
FieldDecoration contentProposalImage =
FieldDecorationRegistry.getDefault()
.getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION);
fControlDecoration.setImage(contentProposalImage.getImage());
// Hide the decoration initially
fControlDecoration.hide();
}