Class RadioGroupFieldEditor


  • public class RadioGroupFieldEditor
    extends FieldEditor
    A field editor for an enumeration type preference. The choices are presented as a list of radio buttons.
    • Constructor Detail

      • RadioGroupFieldEditor

        protected RadioGroupFieldEditor()
        Creates a new radio group field editor
      • RadioGroupFieldEditor

        public RadioGroupFieldEditor​(String name,
                                     String labelText,
                                     int numColumns,
                                     String[][] labelAndValues,
                                     Composite parent)
        Creates a radio group field editor. This constructor does not use a Group to contain the radio buttons. It is equivalent to using the following constructor with false for the useGroup argument.

        Example usage:

         
              RadioGroupFieldEditor editor= new RadioGroupFieldEditor(
                  "GeneralPage.DoubleClick", resName, 1,
                  new String[][] {{"Open Browser", "open"}, {"Expand Tree", "expand"}},
                  parent);
         
         
        Parameters:
        name - the name of the preference this field editor works on
        labelText - the label text of the field editor
        numColumns - the number of columns for the radio button presentation
        labelAndValues - list of radio button [label, value] entries; the value is returned when the radio button is selected
        parent - the parent of the field editor's control
      • RadioGroupFieldEditor

        public RadioGroupFieldEditor​(String name,
                                     String labelText,
                                     int numColumns,
                                     String[][] labelAndValues,
                                     Composite parent,
                                     boolean useGroup)
        Creates a radio group field editor.

        Example usage:

         
         RadioGroupFieldEditor editor= new RadioGroupFieldEditor(
                "GeneralPage.DoubleClick", resName, 1,
                new String[][] {
                        {"Open Browser", "open"},
                        {"Expand Tree", "expand"}
                },
                parent, true);
         
         
        Parameters:
        name - the name of the preference this field editor works on
        labelText - the label text of the field editor
        numColumns - the number of columns for the radio button presentation
        labelAndValues - list of radio button [label, value] entries; the value is returned when the radio button is selected
        parent - the parent of the field editor's control
        useGroup - whether to use a Group control to contain the radio buttons
    • Method Detail

      • adjustForNumColumns

        protected void adjustForNumColumns​(int numColumns)
        Description copied from class: FieldEditor
        Adjusts the horizontal span of this field editor's basic controls.

        Subclasses must implement this method to adjust the horizontal span of controls so they appear correct in the given number of columns.

        The number of columns will always be equal to or greater than the value returned by this editor's getNumberOfControls method.

        Specified by:
        adjustForNumColumns in class FieldEditor
        Parameters:
        numColumns - the number of columns
      • doFillIntoGrid

        protected void doFillIntoGrid​(Composite parent,
                                      int numColumns)
        Description copied from class: FieldEditor
        Fills this field editor's basic controls into the given parent.

        Subclasses must implement this method to create the controls for this field editor.

        Note this method may be called by the constructor, so it must not access fields on the receiver object because they will not be fully initialized.

        Specified by:
        doFillIntoGrid in class FieldEditor
        Parameters:
        parent - the composite used as a parent for the basic controls; the parent's layout must be a GridLayout
        numColumns - the number of columns
      • doLoad

        protected void doLoad()
        Description copied from class: FieldEditor
        Initializes this field editor with the preference value from the preference store.

        Subclasses must implement this method to properly initialize the field editor.

        Specified by:
        doLoad in class FieldEditor
      • doLoadDefault

        protected void doLoadDefault()
        Description copied from class: FieldEditor
        Initializes this field editor with the default preference value from the preference store.

        Subclasses must implement this method to properly initialize the field editor.

        Specified by:
        doLoadDefault in class FieldEditor
      • doStore

        protected void doStore()
        Description copied from class: FieldEditor
        Stores the preference value from this field editor into the preference store.

        Subclasses must implement this method to save the entered value into the preference store.

        Specified by:
        doStore in class FieldEditor
      • getNumberOfControls

        public int getNumberOfControls()
        Description copied from class: FieldEditor
        Returns the number of basic controls this field editor consists of.
        Specified by:
        getNumberOfControls in class FieldEditor
        Returns:
        the number of controls
      • getRadioBoxControl

        public Composite getRadioBoxControl​(Composite parent)
        Returns this field editor's radio group control.
        Parameters:
        parent - The parent to create the radioBox in
        Returns:
        the radio group control
      • setIndent

        public void setIndent​(int indent)
        Sets the indent used for the first column of the radion button matrix.
        Parameters:
        indent - the indent (in pixels)
      • setEnabled

        public void setEnabled​(boolean enabled,
                               Composite parent)
        Description copied from class: FieldEditor
        Set whether or not the controls in the field editor are enabled.
        Overrides:
        setEnabled in class FieldEditor
        Parameters:
        enabled - The enabled state.
        parent - The parent of the controls in the group. Used to create the controls if required.