net.sf.simplelayout
Class SimpleLayout

java.lang.Object
  net.sf.simplelayout.SimpleLayout

All Implemented Interfaces:

java.awt.LayoutManager

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

Simple Layout Manager which organizes its components in columns and rows. Per default, there are 2 columns. The components are just added in the right order. You can specify how the columns are aligned, by setting the row constraints. Example:

 SimpleLayout layout = new SimpleLayout();
 // align the labels to the right
 layout.setAlignment(0, SimpleLayout.RIGHT);
 JPanel panel = new JPanel(layout);
 
 panel.add(new JLabel("Name"));
 panel.add(new JTextField()); // Textfield 1
 panel.add(new JLabel("Street"));
 panel.add(new JTextField()); // Textfield 2
 

This creates a Panel with two rows and two columns. The labels are put in the first column, the text fields in the second:

Name	Textfield 1
Street	Textfield 2

Author:

Claus Radloff

Field Summary

static SimpleLayoutConstraints	CENTER put the components in the center corner
static SimpleLayoutConstraints	EAST put the components center right corner
static SimpleLayoutConstraints	NORTH put the components top center corner
static SimpleLayoutConstraints	NORTHEAST put the components top right corner
static SimpleLayoutConstraints	NORTHWEST put the components top left corner (default)
static SimpleLayoutConstraints	SOUTH put the components lower center corner
static SimpleLayoutConstraints	SOUTHEAST put the components lower right corner
static SimpleLayoutConstraints	SOUTHWEST put the components lower left corner
static SimpleLayoutConstraints	WEST put the components center left corner

Constructor Summary

SimpleLayout()
Constructor with two columns and no gaps.

SimpleLayout(int columns)
Constructor with no gaps.

SimpleLayout(int columns, int hgap, int vgap)
Constructor with no gaps.

Method Summary

void	addLayoutComponent(java.lang.String name, java.awt.Component c) Do nothing.
int	getHgap() Returns the horizontal gap between components.
int	getVgap() Returns the vertical gap between components.
void	layoutContainer(java.awt.Container parent) Lays out the specified container.
java.awt.Dimension	maximumLayoutSize(java.awt.Container parent) Calculates the maximum size dimensions for the specified container, given the components it contains.
java.awt.Dimension	minimumLayoutSize(java.awt.Container parent) Calculates the minimum size dimensions for the specified container, given the components it contains.
java.awt.Dimension	preferredLayoutSize(java.awt.Container parent) Calculates the preferred size dimensions for the specified container, given the components it contains.
void	removeLayoutComponent(java.awt.Component c) Do nothing.
void	setAlignment(int col, SimpleLayoutConstraints align) Set the alignment for the given column.
void	setHgap(int hgap) Sets the horizontal gap between components.
void	setVgap(int vgap) Sets the vertical gap between components.

Methods inherited from class java.lang.Object

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

Field Detail

NORTH

public static final SimpleLayoutConstraints NORTH

put the components top center corner

NORTHEAST

public static final SimpleLayoutConstraints NORTHEAST

put the components top right corner

EAST

public static final SimpleLayoutConstraints EAST

put the components center right corner

SOUTHEAST

public static final SimpleLayoutConstraints SOUTHEAST

put the components lower right corner

SOUTH

public static final SimpleLayoutConstraints SOUTH

put the components lower center corner

SOUTHWEST

public static final SimpleLayoutConstraints SOUTHWEST

put the components lower left corner

WEST

public static final SimpleLayoutConstraints WEST

put the components center left corner

NORTHWEST

public static final SimpleLayoutConstraints NORTHWEST

put the components top left corner (default)

CENTER

public static final SimpleLayoutConstraints CENTER

put the components in the center corner

Constructor Detail

SimpleLayout

public SimpleLayout()

Constructor with two columns and no gaps.

SimpleLayout

public SimpleLayout(int columns)

Constructor with no gaps.

Parameters:

columns - number of columns

SimpleLayout

public SimpleLayout(int columns,
                    int hgap,
                    int vgap)

Constructor with no gaps.

Parameters:

columns - number of columns

hgap - horizontal gap

vgap - vertical gap

Method Detail

addLayoutComponent

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

Do nothing.

Specified by:

addLayoutComponent in interface java.awt.LayoutManager

Parameters:

name - unused

c - unused

See Also:

LayoutManager.addLayoutComponent(java.lang.String, java.awt.Component)

getHgap

public int getHgap()

Returns the horizontal gap between components.

Returns:

horizontal gap

getVgap

public int getVgap()

Returns the vertical gap between components.

Returns:

vertical gap

layoutContainer

public void layoutContainer(java.awt.Container parent)

Lays out the specified container.

Specified by:

layoutContainer in interface java.awt.LayoutManager

See Also:

LayoutManager.layoutContainer(java.awt.Container)

maximumLayoutSize

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

Calculates the maximum size dimensions for the specified container, given the components it contains.

Parameters:

parent - parent container

Returns:

the dimension

minimumLayoutSize

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

Calculates the minimum size dimensions for the specified container, given the components it contains.

Specified by:

minimumLayoutSize in interface java.awt.LayoutManager

Parameters:

parent - parent container

Returns:

the dimension

See Also:

LayoutManager.minimumLayoutSize(java.awt.Container)

preferredLayoutSize

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

Calculates the preferred size dimensions for the specified container, given the components it contains.

Specified by:

preferredLayoutSize in interface java.awt.LayoutManager

See Also:

LayoutManager.preferredLayoutSize(java.awt.Container)

removeLayoutComponent

public void removeLayoutComponent(java.awt.Component c)

Do nothing.

Specified by:

removeLayoutComponent in interface java.awt.LayoutManager

See Also:

LayoutManager.removeLayoutComponent(java.awt.Component)

setAlignment

public void setAlignment(int col,
                         SimpleLayoutConstraints align)

Set the alignment for the given column.

Parameters:

col - the column to set the alignment for

align - the alignment

setHgap

public void setHgap(int hgap)

Sets the horizontal gap between components.

Parameters:

hgap - the horizontal gap between components

setVgap

public void setVgap(int vgap)

Sets the vertical gap between components.

Parameters:

vgap - the vertical gap between components