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Chapter 18 The java.awt Package |
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Chapter 18 The java.awt Package |
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This interface defines the methods that should be implemented by an object that maintains a user-adjustable numeric value. This value has a specified minimum and maximum value, and it may be incremented or decremented either a unit at a time or a block at a time. An Adjustable object generates an AdjustmentEvent when it is adjusted, and it maintains a list of AdjustmentListener objects interested in being notified when such an event occurs.
This interface abstracts the essential functionality of the Scrollbar component.
public abstract interface Adjustable {
// Constants
public static final int HORIZONTAL;
public static final int VERTICAL;
// Public Instance Methods
public abstract void addAdjustmentListener(AdjustmentListener l);
public abstract int getBlockIncrement();
public abstract int getMaximum();
public abstract int getMinimum();
public abstract int getOrientation();
public abstract int getUnitIncrement();
public abstract int getValue();
public abstract int getVisibleAmount();
public abstract void removeAdjustmentListener(AdjustmentListener l);
public abstract void setBlockIncrement(int b);
public abstract void setMaximum(int max);
public abstract void setMinimum(int min);
public abstract void setUnitIncrement(int u);
public abstract void setValue(int v);
public abstract void setVisibleAmount(int v);
}
Scrollbar
AdjustmentEvent(), ScrollPanePeer.setUnitIncrement(), ScrollPanePeer.setValue()
AdjustmentEvent.getAdjustable(), ScrollPane.getHAdjustable(), ScrollPane.getVAdjustable()
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| java.awt.AWTException (JDK 1.0) |  |
java.awt.BorderLayout (JDK 1.0) |
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