wyvern.common.util
Class ColumnLayout

java.lang.Object
  wyvern.common.util.ColumnLayout

All Implemented Interfaces:

java.awt.LayoutManager, java.awt.LayoutManager2

public class ColumnLayout

extends java.lang.Object

implements java.awt.LayoutManager2

This LayoutManager arranges the components into a column. Components are always given their preferred size. When you create a ColumnLayout, you may specify four values: margin_height -- how much space to leave on top and bottom margin_width -- how much space to leave on left and right spacing -- how much vertical space to leave between items alignment -- the horizontal position of the components: ColumnLayout.LEFT -- left-justify the components ColumnLayout.CENTER -- horizontally center the components ColumnLayout.RIGHT -- right-justify the components You never call the methods of a ColumnLayout object. Just create one and make it the layout manager for your container by passing it to the addLayout() method of the Container object.

Field Summary

protected int	alignment
static int	CENTER
static int	LEFT
protected int	margin_height
protected int	margin_width
static int	RIGHT
protected int	spacing

Constructor Summary

ColumnLayout()
A default constructor that creates a ColumnLayout using 5-pixel margin width and height, 5-pixel spacing, and left alignment

ColumnLayout(int margin_height, int margin_width, int spacing, int alignment)
The constructor.

Method Summary

void	addLayoutComponent(java.awt.Component comp, java.lang.Object constraint)
void	addLayoutComponent(java.lang.String constraint, java.awt.Component comp)
float	getLayoutAlignmentX(java.awt.Container parent)
float	getLayoutAlignmentY(java.awt.Container parent)
void	invalidateLayout(java.awt.Container parent)
void	layoutContainer(java.awt.Container parent) The method that actually performs the layout.
protected java.awt.Dimension	layoutSize(java.awt.Container parent, int sizetype)
java.awt.Dimension	maximumLayoutSize(java.awt.Container parent) The Container calls this to find out how big the layout can be
java.awt.Dimension	minimumLayoutSize(java.awt.Container parent) The Container calls this to find out how big the layout must be
java.awt.Dimension	preferredLayoutSize(java.awt.Container parent) The Container calls this to find out how big the layout should to be
void	removeLayoutComponent(java.awt.Component comp)

Methods inherited from class java.lang.Object

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

Field Detail

margin_height

protected int margin_height

margin_width

protected int margin_width

spacing

protected int spacing

alignment

protected int alignment

LEFT

public static final int LEFT

See Also:

Constant Field Values

CENTER

public static final int CENTER

See Also:

Constant Field Values

RIGHT

public static final int RIGHT

See Also:

Constant Field Values

Constructor Detail

ColumnLayout

public ColumnLayout(int margin_height,
                    int margin_width,
                    int spacing,
                    int alignment)

The constructor. See comment above for meanings of these arguments

ColumnLayout

public ColumnLayout()

A default constructor that creates a ColumnLayout using 5-pixel margin width and height, 5-pixel spacing, and left alignment

Method Detail

layoutContainer

public void layoutContainer(java.awt.Container parent)

The method that actually performs the layout. Called by the Container

Specified by:

layoutContainer in interface java.awt.LayoutManager

preferredLayoutSize

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

The Container calls this to find out how big the layout should to be

Specified by:

preferredLayoutSize in interface java.awt.LayoutManager

minimumLayoutSize

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

The Container calls this to find out how big the layout must be

Specified by:

minimumLayoutSize in interface java.awt.LayoutManager

maximumLayoutSize

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

The Container calls this to find out how big the layout can be

Specified by:

maximumLayoutSize in interface java.awt.LayoutManager2

layoutSize

protected java.awt.Dimension layoutSize(java.awt.Container parent,
                                        int sizetype)

addLayoutComponent

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

Specified by:

addLayoutComponent in interface java.awt.LayoutManager

addLayoutComponent

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

Specified by:

addLayoutComponent in interface java.awt.LayoutManager2

removeLayoutComponent

public void removeLayoutComponent(java.awt.Component comp)

Specified by:

removeLayoutComponent in interface java.awt.LayoutManager

invalidateLayout

public void invalidateLayout(java.awt.Container parent)

Specified by:

invalidateLayout in interface java.awt.LayoutManager2

getLayoutAlignmentX

public float getLayoutAlignmentX(java.awt.Container parent)

Specified by:

getLayoutAlignmentX in interface java.awt.LayoutManager2

getLayoutAlignmentY

public float getLayoutAlignmentY(java.awt.Container parent)

Specified by:

getLayoutAlignmentY in interface java.awt.LayoutManager2