PamView

Class VerticalLayout

java.lang.Object

PamView.VerticalLayout

All Implemented Interfaces:

java.awt.LayoutManager

public class VerticalLayout
extends java.lang.Object
implements java.awt.LayoutManager

A vertical layout manager similar to java.awt.FlowLayout. Like FlowLayout components do not expand to fill available space except when the horizontal alignment is BOTH in which case components are stretched horizontally. Unlike FlowLayout, components will not wrap to form another column if there isn't enough space vertically. VerticalLayout can optionally anchor components to the top or bottom of the display area or center them between the top and bottom. Revision date 12th July 2001

Author:

Colin Mummery e-mail: colin_mummery@yahoo.com Homepage:www.kagi.com/equitysoft - Based on 'FlexLayout' in Java class libraries Vol 2 Chan/Lee Addison-Wesley 1998

Field Summary

Fields

Modifier and Type	Field and Description
static int	BOTH The horizontal alignment constant that designates stretching the component horizontally.
static int	BOTTOM The anchoring constant that designates anchoring to the bottom of the display area
static int	CENTER The horizontal alignment constant that designates centering.
static int	LEFT The horizontal alignment constant that designates left justification.
static int	RIGHT The horizontal alignment constant that designates right justification.
static int	TOP The anchoring constant that designates anchoring to the top of the display area

Constructor Summary

Constructors

Constructor and Description
VerticalLayout() Constructs an instance of VerticalLayout with a vertical vgap of 5 pixels, horizontal centering and anchored to the top of the display area.
VerticalLayout(int vgap) Constructs a VerticalLayout instance with horizontal centering, anchored to the top with the specified vgap
VerticalLayout(int vgap, int alignment) Constructs a VerticalLayout instance anchored to the top with the specified vgap and horizontal alignment
VerticalLayout(int vgap, int alignment, int anchor) Constructs a VerticalLayout instance with the specified vgap, horizontal alignment and anchoring

Method Summary

Methods

Modifier and Type	Method and Description
void	addLayoutComponent(java.lang.String name, java.awt.Component comp) Not used by this class
void	layoutContainer(java.awt.Container parent) Lays out the container.
java.awt.Dimension	minimumLayoutSize(java.awt.Container parent)
java.awt.Dimension	preferredLayoutSize(java.awt.Container parent)
void	removeLayoutComponent(java.awt.Component comp) Not used by this class
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CENTER

public static final int CENTER

The horizontal alignment constant that designates centering. Also used to designate center anchoring.

See Also:

Constant Field Values

RIGHT

public static final int RIGHT

The horizontal alignment constant that designates right justification.

See Also:

Constant Field Values

LEFT

public static final int LEFT

The horizontal alignment constant that designates left justification.

See Also:

Constant Field Values

BOTH

public static final int BOTH

The horizontal alignment constant that designates stretching the component horizontally.

See Also:

Constant Field Values

TOP

public static final int TOP

The anchoring constant that designates anchoring to the top of the display area

See Also:

Constant Field Values

BOTTOM

public static final int BOTTOM

The anchoring constant that designates anchoring to the bottom of the display area

See Also:

Constant Field Values

Constructor Detail

VerticalLayout

public VerticalLayout()

Constructs an instance of VerticalLayout with a vertical vgap of 5 pixels, horizontal centering and anchored to the top of the display area.

VerticalLayout

public VerticalLayout(int vgap)

Constructs a VerticalLayout instance with horizontal centering, anchored to the top with the specified vgap

Parameters:

vgap - An int value indicating the vertical seperation of the components

VerticalLayout

public VerticalLayout(int vgap,
              int alignment)

Constructs a VerticalLayout instance anchored to the top with the specified vgap and horizontal alignment

Parameters:

vgap - An int value indicating the vertical seperation of the components

alignment - An int value which is one of RIGHT, LEFT, CENTER, BOTH for the horizontal alignment.

VerticalLayout

public VerticalLayout(int vgap,
              int alignment,
              int anchor)

Constructs a VerticalLayout instance with the specified vgap, horizontal alignment and anchoring

Parameters:

vgap - An int value indicating the vertical seperation of the components

alignment - An int value which is one of RIGHT, LEFT, CENTER, BOTH for the horizontal alignment.

anchor - An int value which is one of TOP, BOTTOM, CENTER indicating where the components are to appear if the display area exceeds the minimum necessary.

Method Detail

layoutContainer

public void layoutContainer(java.awt.Container parent)

Lays out the container.

Specified by:

layoutContainer in interface java.awt.LayoutManager

minimumLayoutSize

public java.awt.Dimension minimumLayoutSize(java.awt.Container parent)

Specified by:

minimumLayoutSize in interface java.awt.LayoutManager

preferredLayoutSize

public java.awt.Dimension preferredLayoutSize(java.awt.Container parent)

Specified by:

preferredLayoutSize in interface java.awt.LayoutManager

addLayoutComponent

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

Not used by this class

Specified by:

addLayoutComponent in interface java.awt.LayoutManager

removeLayoutComponent

public void removeLayoutComponent(java.awt.Component comp)

Not used by this class

Specified by:

removeLayoutComponent in interface java.awt.LayoutManager

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object