Class MouseWheelHandler.KeyGenerator

  • Enclosing interface:
    MouseWheelHandler

    public static class MouseWheelHandler.KeyGenerator
    extends java.lang.Object
    A utility class used to generate keys from a given stateMask. A MouseWheelHandler registered with such a key would only be asked to handle mouse-wheel events that have the same stateMask as the one that was used to generate the key.
    Since:
    3.1
    • Constructor Summary

      Constructors 
      Constructor Description
      KeyGenerator()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String getKey​(int stateMask)
      The returned String is guaranteed to be equal for two different invocations with the same stateMask.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • KeyGenerator

        public KeyGenerator()
    • Method Detail

      • getKey

        public static java.lang.String getKey​(int stateMask)
        The returned String is guaranteed to be equal for two different invocations with the same stateMask.

        Valid stateMasks are SWT.NONE, SWT.CTRL, SWT.COMMAND, SWT.ALT, SWT.SHIFT, SWT.MOD1, SWT.MOD2, SWT.MOD3, SWT.MOD4, SWT.BUTTON* or any combination thereof.

        Parameters:
        stateMask - the state indicating which buttons/modifiers are active
        Returns:
        key for the given stateMask
        Throws:
        java.lang.IllegalArgumentException - if the given stateMask is not valid