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 final int
    Indicates that the Adjustable has horizontal orientation.
    static final int
    Indicates that the Adjustable has no orientation.
    static final int
    Indicates that the Adjustable has vertical orientation.
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    Adds a listener to receive adjustment events when the value of the adjustable object changes.
    int
    Gets the block value increment for the adjustable object.
    int
    Gets the maximum value of the adjustable object.
    int
    Gets the minimum value of the adjustable object.
    int
    Gets the orientation of the adjustable object.
    int
    Gets the unit value increment for the adjustable object.
    int
    Gets the current value of the adjustable object.
    int
    Gets the length of the proportional indicator.
    void
    Removes an adjustment listener.
    void
    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