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java.awt
Class CardLayout  

java.lang.Object
  java.awt.CardLayout

All Implemented Interfaces:

LayoutManager, LayoutManager2, java.io.Serializable

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public class CardLayout

extends java.lang.Object

implements LayoutManager2, java.io.Serializable

This class implements a card-based layout scheme. Each included component is treated as a card. Only one card can be shown at a time. This class includes methods for changing which card is shown.

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Field Summary
private static int	FIRST
private  int	hgap
private static int	LAST
private static int	MAX
private static int	MIN
private static int	NEXT
private static int	PREF
private static int	PREV
private static long	serialVersionUID
private  java.util.Hashtable	tab
private  int	vgap

 

Constructor Summary

CardLayout()           Initializes a new instance of CardLayout with horizontal and vertical gaps of 0.

CardLayout(int hgap, int vgap)           Create a new CardLayout object with the specified horizontal and vertical gaps.

 

Method Summary
void	addLayoutComponent(Component comp, java.lang.Object constraints)           Add a new component to the layout.
void	addLayoutComponent(java.lang.String name, Component comp)           Deprecated. This method is deprecated in favor of addLayoutComponent(Component, Object).
void	first(Container parent)           Cause the first component in the container to be displayed.
int	getHgap()           Return this layout manager's horizontal gap.
float	getLayoutAlignmentX(Container parent)           Return this layout manager's x alignment.
float	getLayoutAlignmentY(Container parent)           Returns this layout manager's y alignment.
private  Dimension	getSize(Container parent, int what)
int	getVgap()           Return this layout manager's vertical gap.
private  void	gotoComponent(Container parent, int what)           This implements first(), last(), next(), and previous().
void	invalidateLayout(Container target)           Invalidate this layout manager's state.
void	last(Container parent)           Cause the last component in the container to be displayed.
void	layoutContainer(Container parent)           Lays out the container.
Dimension	maximumLayoutSize(Container target)           Get the maximum layout size of the container.
Dimension	minimumLayoutSize(Container target)           Get the minimum layout size of the container.
void	next(Container parent)           Cause the next component in the container to be displayed.
Dimension	preferredLayoutSize(Container parent)           Get the preferred layout size of the container.
void	previous(Container parent)           Cause the previous component in the container to be displayed.
void	removeLayoutComponent(Component comp)           Remove the indicated component from this layout manager.
void	setHgap(int hgap)           Set this layout manager's horizontal gap.
void	setVgap(int vgap)           Set this layout manager's vertical gap.
void	show(Container parent, java.lang.String name)           Cause the named component to be shown.
java.lang.String	toString()           Returns a string representation of this layout manager.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

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hgap

private int hgap

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vgap

private int vgap

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tab

private java.util.Hashtable tab

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FIRST

private static final int FIRST

See Also:

Constant Field Values

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LAST

private static final int LAST

See Also:

Constant Field Values

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NEXT

private static final int NEXT

See Also:

Constant Field Values

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PREV

private static final int PREV

See Also:

Constant Field Values

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MIN

private static final int MIN

See Also:

Constant Field Values

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MAX

private static final int MAX

See Also:

Constant Field Values

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PREF

private static final int PREF

See Also:

Constant Field Values

Constructor Detail

CardLayout

public CardLayout()

Initializes a new instance of CardLayout with horizontal and vertical gaps of 0.

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CardLayout

public CardLayout(int hgap,
                  int vgap)

Create a new CardLayout object with the specified horizontal and vertical gaps.

Method Detail

addLayoutComponent

public void addLayoutComponent(Component comp,
                               java.lang.Object constraints)

Add a new component to the layout. The constraint must be a string which is used to name the component. This string can later be used to refer to the particular component.

Specified by:

addLayoutComponent in interface LayoutManager2

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addLayoutComponent

public void addLayoutComponent(java.lang.String name,
                               Component comp)

Deprecated. This method is deprecated in favor of addLayoutComponent(Component, Object).

Add a new component to the layout. The name can be used later to refer to the component.

Specified by:

addLayoutComponent in interface LayoutManager

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first

public void first(Container parent)

Cause the first component in the container to be displayed.

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getHgap

public int getHgap()

Return this layout manager's horizontal gap.

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getLayoutAlignmentX

public float getLayoutAlignmentX(Container parent)

Return this layout manager's x alignment. This method always returns Component.CENTER_ALIGNMENT.

Specified by:

getLayoutAlignmentX in interface LayoutManager2

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getLayoutAlignmentY

public float getLayoutAlignmentY(Container parent)

Returns this layout manager's y alignment. This method always returns Component.CENTER_ALIGNMENT.

Specified by:

getLayoutAlignmentY in interface LayoutManager2

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getVgap

public int getVgap()

Return this layout manager's vertical gap.

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invalidateLayout

public void invalidateLayout(Container target)

Invalidate this layout manager's state.

Specified by:

invalidateLayout in interface LayoutManager2

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last

public void last(Container parent)

Cause the last component in the container to be displayed.

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layoutContainer

public void layoutContainer(Container parent)

Lays out the container. This is done by resizing the child components to be the same size as the parent, less insets and gaps.

Specified by:

layoutContainer in interface LayoutManager

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maximumLayoutSize

public Dimension maximumLayoutSize(Container target)

Get the maximum layout size of the container.

Specified by:

maximumLayoutSize in interface LayoutManager2

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minimumLayoutSize

public Dimension minimumLayoutSize(Container target)

Get the minimum layout size of the container.

Specified by:

minimumLayoutSize in interface LayoutManager

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next

public void next(Container parent)

Cause the next component in the container to be displayed. If this current card is the last one in the deck, the first component is displayed.

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preferredLayoutSize

public Dimension preferredLayoutSize(Container parent)

Get the preferred layout size of the container.

Specified by:

preferredLayoutSize in interface LayoutManager

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previous

public void previous(Container parent)

Cause the previous component in the container to be displayed. If this current card is the first one in the deck, the last component is displayed.

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removeLayoutComponent

public void removeLayoutComponent(Component comp)

Remove the indicated component from this layout manager.

Specified by:

removeLayoutComponent in interface LayoutManager

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setHgap

public void setHgap(int hgap)

Set this layout manager's horizontal gap.

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setVgap

public void setVgap(int vgap)

Set this layout manager's vertical gap.

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show

public void show(Container parent,
                 java.lang.String name)

Cause the named component to be shown. If the component name is unknown or null, this method does nothing.

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toString

public java.lang.String toString()

Returns a string representation of this layout manager.

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gotoComponent

private void gotoComponent(Container parent,
                           int what)

This implements first(), last(), next(), and previous().

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getSize

private Dimension getSize(Container parent,
                          int what)

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Home >> All >> java >> [ awt overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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