拥有PreferencePage:通过BooleanFieldEditor启用和禁用FieldEditor

Question

我正在为RCP应用程序为Eclipse创建自己的PreferencePage。有一个FileFieldEditor，我希望通过BooleanFieldEditor来启用和禁用它。

现在我不知道如何实现这一点。

public class PreferencePage extends FieldEditorPreferencePage implements
IWorkbenchPreferencePage {

FileFieldEditor subversionPathEditor;
BooleanFieldEditor subversionSupportBooleanFieldEditor;

public PreferencePage() {
super(GRID);
setPreferenceStore(Activator.getDefault().getPreferenceStore());
setDescription(""); //$NON-NLS-1$
}


protected void createFieldEditors() {
subversionSupportBooleanFieldEditor = new BooleanFieldEditor
    ("subversionSupport", "Enable Subversion support", BooleanFieldEditor.DEFAULT, getFieldEditorParent());
System.out.println(subversionSupportBooleanFieldEditor.getPreferenceName());

subversionSupportBooleanFieldEditor.setPropertyChangeListener(new IPropertyChangeListener() {
    @Override
    public void propertyChange(PropertyChangeEvent event) {
    if ("field_editor_value".equalsIgnoreCase(event.getProperty())) {
        Boolean enabled = (Boolean)event.getNewValue();
        subversionPathEditor.setEnabled(enabled, getFieldEditorParent());
    }

    }
});
addField(subversionSupportBooleanFieldEditor);
subversionPathEditor = new FileFieldEditor("SubversionPathEditor", "Subversion client executable: ", true, 
    FileFieldEditor.VALIDATE_ON_KEY_STROKE, getFieldEditorParent());
subversionPathEditor.setStringValue(VCSSettings.getSubversionPath());
    addField(subversionPathEditor);

有什么想法可以把代码放在哪里来启用和禁用FileFieldEditor？我知道如何启用/禁用，但是在哪种方法中放置了代码？

已经在createFieldEditors()、checkState()、updateFieldEditors()和createControl()中尝试过。

Answer 1

您可以覆盖

@Override
public void propertyChange(PropertyChangeEvent event)
{
  ... extra here

  super.propertyChange(event);
}

方法来获取属性更改事件(对于所有字段)。