java.awt
Class FlowLayout

java.lang.Object
  |
  +--java.awt.FlowLayout

All Implemented Interfaces:

LayoutManager

public class FlowLayout

extends Object

implements LayoutManager

Flow layout is used to layout buttons in a panel. It will arrange buttons left to right until no more buttons fit on the same line. Each line is centered.

Field Summary

static int	CENTER The right alignment variable.
static int	LEFT The left alignment variable.
static int	RIGHT The right alignment variable.

Constructor Summary

FlowLayout()
Constructs a new Flow Layout with a centered alignment.

FlowLayout(int align)
Constructs a new Flow Layout with the specified alignment.

FlowLayout(int align, int hgap, int vgap)
Constructs a new Flow Layout with the specified alignment and gap values.

Method Summary

void	addLayoutComponent(String name, Component comp) Adds the specified component to the layout.
void	layoutContainer(Container target) Lays out the container.
Dimension	minimumLayoutSize(Container target) Returns the minimum dimensions needed to layout the components contained in the specified target container.
Dimension	preferredLayoutSize(Container target) Returns the preferred dimensions for this layout given the components in the specified target container.
void	removeLayoutComponent(Component comp) Removes the specified component from the layout.
String	toString() Returns the String representation of this FlowLayout's values.

Methods inherited from class java.lang.Object

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

Field Detail

LEFT

public static final int LEFT

The left alignment variable.

See Also:

Constant Field Values

CENTER

public static final int CENTER

The right alignment variable.

See Also:

Constant Field Values

RIGHT

public static final int RIGHT

The right alignment variable.

See Also:

Constant Field Values

Constructor Detail

FlowLayout

public FlowLayout()

Constructs a new Flow Layout with a centered alignment.

FlowLayout

public FlowLayout(int align)

Constructs a new Flow Layout with the specified alignment.

Parameters:

align - the alignment value

FlowLayout

public FlowLayout(int align,
                  int hgap,
                  int vgap)

Constructs a new Flow Layout with the specified alignment and gap values.

Parameters:

align - the alignment value

hgap - the horizontal gap variable

vgap - the vertical gap variable

Method Detail

addLayoutComponent

public void addLayoutComponent(String name,
                               Component comp)

Adds the specified component to the layout. Not used by this class.

Specified by:

addLayoutComponent in interface LayoutManager

Parameters:

name - the name of the component

comp - the the component to be added

removeLayoutComponent

public void removeLayoutComponent(Component comp)

Removes the specified component from the layout. Not used by this class.

Specified by:

removeLayoutComponent in interface LayoutManager

Parameters:

comp - the component to remove

preferredLayoutSize

public Dimension preferredLayoutSize(Container target)

Returns the preferred dimensions for this layout given the components in the specified target container.

Specified by:

preferredLayoutSize in interface LayoutManager

Parameters:

target - the component which needs to be laid out

See Also:

Container, minimumLayoutSize(java.awt.Container)

minimumLayoutSize

public Dimension minimumLayoutSize(Container target)

Returns the minimum dimensions needed to layout the components contained in the specified target container.

Specified by:

minimumLayoutSize in interface LayoutManager

Parameters:

target - the component which needs to be laid out

See Also:

preferredLayoutSize(java.awt.Container)

layoutContainer

public void layoutContainer(Container target)

Lays out the container. This method will actually reshape the components in the target in order to satisfy the constraints of the BorderLayout object.

Specified by:

layoutContainer in interface LayoutManager

Parameters:

target - the specified component being laid out.

See Also:

Container

toString

public String toString()

Returns the String representation of this FlowLayout's values.

Overrides:

toString in class Object