protected final void updateModel(DialogField field) {
	if (field == taskTags) {
		@SuppressWarnings("unchecked")
		List<TaskTag> list = taskTags.getElements();
		setValue(getTaskTagsKey(), serializeTags(list));
		setValue(getTaskPrioritiesKey(), serializePriorities(list));
	} else if (field == caseSensitiveCheckBox) {
		String state = caseSensitiveCheckBox.isSelected() ? ENABLED : DISABLED;
		setValue(getTasksCaseSensitiveKey(), state);
	}
}
 

private IDialogFieldListener getProjectValueListener() {
  return new IDialogFieldListener() {
    public void dialogFieldChanged(final DialogField field) {
      projectNameStatus = validator.checkProjectName(getProjectName());
      handleFieldChanged(field.toString());
    }
  };
}
 

/**
 * Creates the grammars controls.
 * 
 * @param composite
 *          the composite
 * @param columns
 *          the columns
 */
private void createProjectControls(final Composite composite, final int columns) {
  projectName.setDialogFieldListener(getProjectValueListener());
  projectName.setLabelText(Messages.PROJECT_NAME_LABEL);
  projectName.doFillIntoGrid(composite, columns);

  DialogField.createEmptySpace(composite);

  Text text = projectName.getTextControl(null);
  GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
  text.setLayoutData(gridData);
  projectName.setFocus();
}
 

/** copied from PropertyAndPreferencePage */
@Override
protected Label createDescriptionLabel(Composite parent) {
	parentComposite = parent;
	if (isProjectPreferencePage()) {
		Composite composite = new Composite(parent, SWT.NONE);
		composite.setFont(parent.getFont());
		GridLayout layout = new GridLayout();
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		layout.numColumns = 2;
		composite.setLayout(layout);
		composite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

		IDialogFieldListener listener = new IDialogFieldListener() {
			@Override
			public void dialogFieldChanged(DialogField dialogField) {
				boolean enabled = ((SelectionButtonDialogField) dialogField).isSelected();
				enableProjectSpecificSettings(enabled);
				projectSpecificChanged = true;

				if (enabled && getData() != null) {
					applyData(getData());
				}
			}
		};

		useProjectSettings = new SelectionButtonDialogField(SWT.CHECK);
		useProjectSettings.setDialogFieldListener(listener);
		useProjectSettings
				.setLabelText(
						org.eclipse.xtext.ui.preferences.Messages.PropertyAndPreferencePage_useprojectsettings_label);
		useProjectSettings.doFillIntoGrid(composite, 1);
		LayoutUtil.setHorizontalGrabbing(useProjectSettings.getSelectionButton(null));

		if (offerLink()) {
			changeWorkspaceSettings = createLink(composite,
					org.eclipse.xtext.ui.preferences.Messages.PropertyAndPreferencePage_useworkspacesettings_change);
			changeWorkspaceSettings.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false));
		} else {
			LayoutUtil.setHorizontalSpan(useProjectSettings.getSelectionButton(null), 2);
		}

		Label horizontalLine = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
		horizontalLine.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false, 2, 1));
		horizontalLine.setFont(composite.getFont());
	} else if (supportsProjectSpecificOptions() && offerLink()) {
		changeWorkspaceSettings = createLink(
				parent,
				org.eclipse.xtext.ui.preferences.Messages.PropertyAndPreferencePage_showprojectspecificsettings_label);
		changeWorkspaceSettings.setLayoutData(new GridData(SWT.END, SWT.CENTER, true, false));
	}

	return super.createDescriptionLabel(parent);
}
 

@Override
public void dialogFieldChanged(DialogField field) {
	updateModel(field);
}
 

@Override
public void dialogFieldChanged(DialogField field) {
	doValidation();
}
 

@Override
protected Label createDescriptionLabel(Composite parent) {
	parentComposite = parent;
	if (isProjectPreferencePage()) {
		Composite composite = new Composite(parent, SWT.NONE);
		composite.setFont(parent.getFont());
		GridLayout layout = new GridLayout();
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		layout.numColumns = 2;
		composite.setLayout(layout);
		composite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

		IDialogFieldListener listener = new IDialogFieldListener() {
			@Override
			public void dialogFieldChanged(DialogField field) {
				boolean enabled = ((SelectionButtonDialogField) field).isSelected();
				enableProjectSpecificSettings(enabled);

				if (enabled && getData() != null) {
					applyData(getData());
				}
			}
		};

		useProjectSettings = new SelectionButtonDialogField(SWT.CHECK);
		useProjectSettings.setDialogFieldListener(listener);
		useProjectSettings.setLabelText(Messages.PropertyAndPreferencePage_useprojectsettings_label);
		useProjectSettings.doFillIntoGrid(composite, 1);
		LayoutUtil.setHorizontalGrabbing(useProjectSettings.getSelectionButton(null));

		if (offerLink()) {
			changeWorkspaceSettings = createLink(composite,
					Messages.PropertyAndPreferencePage_useworkspacesettings_change);
			changeWorkspaceSettings.setLayoutData(new GridData(SWT.END, SWT.CENTER, false, false));
		} else {
			LayoutUtil.setHorizontalSpan(useProjectSettings.getSelectionButton(null), 2);
		}

		Label horizontalLine = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
		horizontalLine.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false, 2, 1));
		horizontalLine.setFont(composite.getFont());
	} else if (supportsProjectSpecificOptions() && offerLink()) {
		changeWorkspaceSettings = createLink(parent,
				Messages.PropertyAndPreferencePage_showprojectspecificsettings_label);
		changeWorkspaceSettings.setLayoutData(new GridData(SWT.END, SWT.CENTER, true, false));
	}

	return super.createDescriptionLabel(parent);
}