Class AbstractTextEditor.ColumnSupport

  • All Implemented Interfaces:
    IColumnSupport
    Enclosing class:
    AbstractTextEditor

    protected static class AbstractTextEditor.ColumnSupport
    extends Object
    implements IColumnSupport
    Implements the ruler column support of for the given editor.

    This is currently only used to support vertical ruler columns.

    Since:
    3.3
    • Constructor Detail

      • ColumnSupport

        public ColumnSupport​(AbstractTextEditor editor,
                             RulerColumnRegistry registry)
        Creates a new column support for the given editor. Only the editor itself should normally create such an instance.
        Parameters:
        editor - the editor
        registry - the contribution registry to refer to
    • Method Detail

      • setColumnVisible

        public final void setColumnVisible​(RulerColumnDescriptor descriptor,
                                           boolean visible)
        Description copied from interface: IColumnSupport
        Attempts to set the visibility of the column described by descriptor. Nothing happens if the visibility is already as requested, or if the column is not supported by the editor.
        Specified by:
        setColumnVisible in interface IColumnSupport
        Parameters:
        descriptor - the column descriptor
        visible - true to show the column, false to hide it
      • initializeColumn

        protected void initializeColumn​(IContributedRulerColumn column)
        Hook to let subclasses initialize a newly created column.

        Subclasses may extend this method.

        Parameters:
        column - the created column
      • isColumnVisible

        public final boolean isColumnVisible​(RulerColumnDescriptor descriptor)
        Description copied from interface: IColumnSupport
        Returns true if the column described by descriptor is currently showing, false if not.
        Specified by:
        isColumnVisible in interface IColumnSupport
        Parameters:
        descriptor - the column descriptor
        Returns:
        true if the specified column is currently visible
      • isColumnSupported

        public final boolean isColumnSupported​(RulerColumnDescriptor descriptor)
        Description copied from interface: IColumnSupport
        Returns true if the column described by descriptor is supported by the receiver's editor, false if id is not the identifier of a known column contribution, if the column does not target the editor, or if the editor does not support contributed columns.
        Specified by:
        isColumnSupported in interface IColumnSupport
        Parameters:
        descriptor - the column descriptor
        Returns:
        true if the specified column is supported
      • dispose

        public void dispose()
        Removes and disposes all currently visible ruler columns.

        Subclasses may extend this method.

        Specified by:
        dispose in interface IColumnSupport