/**
* Add buttons to the dialog's button bar.
*
* <p>Subclasses should override.
*
* @param parent the button bar composite
*/
protected void createButtonsForButtonBar(Composite parent) {
parent.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
if (!field.getPreferencesLevel().equals(IPreferencesService.DEFAULT_LEVEL)) {
copyButton = createButton(parent, COPY_ID, PreferenceDialogConstants.COPY_LABEL, false);
copyButton.setEnabled(
field.getPreferencesLevel() != null
&& field.isInherited()
&& field.getComboBoxControl().isEnabled());
}
// emptyButton = createButton(parent, EMPTY_ID, PreferenceDialogConstants.EMPTY_LABEL,
// false);
// emptyButton.setEnabled(field.getPreferencesLevel() != null &&
// field.isEmptyStringAllowed() && field.getComboBoxControl(parent).isEnabled());
removeButton = createButton(parent, REMOVE_ID, PreferenceDialogConstants.REMOVE_LABEL, false);
removeButton.setEnabled(
(field.getPreferencesLevel() != null)
&& !field.isInherited()
&& field.isRemovable()
&& field.getComboBoxControl().isEnabled());
Label l = new Label(parent, SWT.NONE);
l.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
GridLayout layout = (GridLayout) parent.getLayout();
layout.numColumns++;
layout.makeColumnsEqualWidth = false;
Button b = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
b.setFocus();
}
/*
* Method declared on Dialog.
*
* The main result is to set the preference field in a particular way,
* according to the particular button pressed, but without updating the
* underlying preferences node. Thus the effect of this method is to
* change the field in the display without making the new value visible
* to other fields. For th e new value to take effect it must be later
* stored into the preferences node by some oher action (typically the
* pressing of an Apply or OK button).
*
*/
protected void buttonPressed(int buttonId) {
switch (buttonId) {
case COPY_ID:
if (!field.isInherited()) break;
String value = field.getComboBoxControl().getText();
prefUtils.setField(field, fieldHolder, value);
break;
case REMOVE_ID:
// Can't clear a field that doesn't have a preference stored to start with;
// the following is one way to check that.
// Why would you do this if there weren't a preference stored? May want to
// clear a field that was edited (or otherwise set) locally but not yet stored.
if (field.getPreferencesLevel().equals(field.getLevelFromWhichLoaded())) {
preferencesService.clearPreferenceAtLevel(
field.getPreferencesLevel(), field.getPreferenceName());
}
prefUtils.setField(field, fieldHolder);
break;
// case EMPTY_ID:
// prefUtils.setField(field, fieldHolder, field.getEmptyValue());
// break;
default:
super.buttonPressed(buttonId);
break;
}
close();
}
