Module java.desktop
Package java.awt

Interface Adjustable

All Known Implementing Classes:
JScrollBar, JScrollPane.ScrollBar, Scrollbar, ScrollPaneAdjustable
public interface Adjustable
The interface for objects which have an adjustable numeric value contained within a bounded range of values.

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static int HORIZONTAL
    Indicates that the Adjustable has horizontal orientation.
    static int NO_ORIENTATION
    Indicates that the Adjustable has no orientation.
    static int VERTICAL
    Indicates that the Adjustable has vertical orientation.

  • Method Summary

    Modifier and Type Method Description
    void addAdjustmentListener​(AdjustmentListener l)
    Adds a listener to receive adjustment events when the value of the adjustable object changes.
    int getBlockIncrement()
    Gets the block value increment for the adjustable object.
    int getMaximum()
    Gets the maximum value of the adjustable object.
    int getMinimum()
    Gets the minimum value of the adjustable object.
    int getOrientation()
    Gets the orientation of the adjustable object.
    int getUnitIncrement()
    Gets the unit value increment for the adjustable object.
    int getValue()
    Gets the current value of the adjustable object.
    int getVisibleAmount()
    Gets the length of the proportional indicator.
    void removeAdjustmentListener​(AdjustmentListener l)
    Removes an adjustment listener.
    void setBlockIncrement​(int b)
    Sets the block value increment for the adjustable object.
    void setMaximum​(int max)
    Sets the maximum value of the adjustable object.
    void setMinimum​(int min)
    Sets the minimum value of the adjustable object.
    void setUnitIncrement​(int u)
    Sets the unit value increment for the adjustable object.
    void setValue​(int v)
    Sets the current value of the adjustable object.
    void setVisibleAmount​(int v)
    Sets the length of the proportional indicator of the adjustable object.

  • Field Details

  • Method Details

    • getOrientation

      int getOrientation()
      Gets the orientation of the adjustable object.
      Returns:
      the orientation of the adjustable object; either HORIZONTAL, VERTICAL, or NO_ORIENTATION

    • setMinimum

      void setMinimum​(int min)
      Sets the minimum value of the adjustable object.
      Parameters:
      min - the minimum value

    • getMinimum

      int getMinimum()
      Gets the minimum value of the adjustable object.
      Returns:
      the minimum value of the adjustable object

    • setMaximum

      void setMaximum​(int max)
      Sets the maximum value of the adjustable object.
      Parameters:
      max - the maximum value

    • getMaximum

      int getMaximum()
      Gets the maximum value of the adjustable object.
      Returns:
      the maximum value of the adjustable object

    • setUnitIncrement

      void setUnitIncrement​(int u)
      Sets the unit value increment for the adjustable object.
      Parameters:
      u - the unit increment

    • getUnitIncrement

      int getUnitIncrement()
      Gets the unit value increment for the adjustable object.
      Returns:
      the unit value increment for the adjustable object

    • setBlockIncrement

      void setBlockIncrement​(int b)
      Sets the block value increment for the adjustable object.
      Parameters:
      b - the block increment

    • getBlockIncrement

      int getBlockIncrement()
      Gets the block value increment for the adjustable object.
      Returns:
      the block value increment for the adjustable object

    • setVisibleAmount

      void setVisibleAmount​(int v)
      Sets the length of the proportional indicator of the adjustable object.
      Parameters:
      v - the length of the indicator

    • getVisibleAmount

      int getVisibleAmount()
      Gets the length of the proportional indicator.
      Returns:
      the length of the proportional indicator

    • setValue

      void setValue​(int v)
      Sets the current value of the adjustable object. If the value supplied is less than minimum or greater than maximum - visibleAmount, then one of those values is substituted, as appropriate.

      Calling this method does not fire an AdjustmentEvent.

      Parameters:
      v - the current value, between minimum and maximum - visibleAmount

    • getValue

      int getValue()
      Gets the current value of the adjustable object.
      Returns:
      the current value of the adjustable object

    • addAdjustmentListener

      void addAdjustmentListener​(AdjustmentListener l)
      Adds a listener to receive adjustment events when the value of the adjustable object changes.
      Parameters:
      l - the listener to receive events
      See Also:
      AdjustmentEvent

    • removeAdjustmentListener

      void removeAdjustmentListener​(AdjustmentListener l)
      Removes an adjustment listener.
      Parameters:
      l - the listener being removed
      See Also:
      AdjustmentEvent