Package org.eclipse.jface.bindings.keys.formatting

Class AbstractKeyFormatter

  • All Implemented Interfaces:
    IKeyFormatter
    Direct Known Subclasses:
    EmacsKeyFormatter, FormalKeyFormatter, NativeKeyFormatter
    public abstract class AbstractKeyFormatter
extends Object
implements IKeyFormatter

    An abstract implementation of a key formatter that provides a lot of common key formatting functionality. It is recommended that implementations of IKeyFormatter subclass from here, rather than implementing IKeyFormatter directly.

    Since:
    3.1

    • Field Detail

      • KEY_DELIMITER_KEY

        protected static final String KEY_DELIMITER_KEY
        The key for the delimiter between keys. This is used in the internationalization bundles.
        See Also:
        Constant Field Values

      • KEY_STROKE_DELIMITER_KEY

        protected static final String KEY_STROKE_DELIMITER_KEY
        The key for the delimiter between key strokes. This is used in the internationalization bundles.
        See Also:
        Constant Field Values

      • NO_MODIFIER_KEYS

        protected static final int[] NO_MODIFIER_KEYS
        An empty integer array that can be used in sortModifierKeys(int).

    • Constructor Detail

      • AbstractKeyFormatter

        public AbstractKeyFormatter()

    • Method Detail

      • format

        public String format​(int key)
        Description copied from interface: IKeyFormatter
        Formats an individual key into a human readable format. This uses an internationalization resource bundle to look up the key. This does not do any platform-specific formatting (e.g., Carbon's command character).
        Specified by:
        format in interface IKeyFormatter
        Parameters:
        key - The key to format.
        Returns:
        The key formatted as a string; should not be null.

      • format

        public String format​(KeySequence keySequence)
        Description copied from interface: IKeyFormatter
        Format the given key sequence into a string. The manner of the conversion is dependent on the formatter. It is required that unequal key sequences return unequal strings.
        Specified by:
        format in interface IKeyFormatter
        Parameters:
        keySequence - The key sequence to convert; must not be null.
        Returns:
        A string representation of the key sequence; must not be null.

      • format

        public String format​(KeyStroke keyStroke)
        Description copied from interface: IKeyFormatter
        Format the given key strokes into a string. The manner of the conversion is dependent on the formatter. It is required that unequal key strokes return unequal strings.
        Specified by:
        format in interface IKeyFormatter
        Parameters:
        keyStroke - The key stroke to convert; must not be null.
        Returns:
        A string representation of the key stroke; must not be null

      • getKeyDelimiter

        protected abstract String getKeyDelimiter()
        An accessor for the delimiter you wish to use between keys. This is used by the default format implementations to determine the key delimiter.
        Returns:
        The delimiter to use between keys; should not be null.

      • getKeyStrokeDelimiter

        protected abstract String getKeyStrokeDelimiter()
        An accessor for the delimiter you wish to use between key strokes. This used by the default format implementations to determine the key stroke delimiter.
        Returns:
        The delimiter to use between key strokes; should not be null.

      • sortModifierKeys

        protected abstract int[] sortModifierKeys​(int modifierKeys)
        Separates the modifier keys from each other, and then places them in an array in some sorted order. The sort order is dependent on the type of formatter.
        Parameters:
        modifierKeys - The modifier keys from the key stroke.
        Returns:
        An array of modifier key values -- separated and sorted in some order. Any values in this array that are KeyStroke.NO_KEY should be ignored.