com.iamsoft.util.ui.swing

Class OverlappingLayout

java.lang.Object

com.iamsoft.util.ui.swing.OverlappingLayout

All Implemented Interfaces:

LayoutManager, LayoutManager2, Serializable

public class OverlappingLayout
extends Object
implements LayoutManager2, Serializable

A CardLayout object is a layout manager for a container. It treats each component in the container as a card. Only one card is visible at a time, and the container acts as a stack of cards. The first component added to a CardLayout object is the visible component when the container is first displayed.

The ordering of cards is determined by the container's own internal ordering of its component objects. CardLayout defines a set of methods that allow an application to flip through these cards sequentially, or to show a specified card. The addLayoutComponent(java.awt.Component, java.lang.Object) method can be used to associate a string identifier with a given card for fast random access.

Since:

JDK1.0

Version:

%I% %G%

See Also:

Container, Serialized Form

Constructor Summary

Constructors

Constructor and Description
OverlappingLayout() Creates a new card layout with gaps of size zero.
OverlappingLayout(int hgap, int vgap) Creates a new card layout with the specified horizontal and vertical gaps.

Method Summary

Modifier and Type	Method and Description
void	addLayoutComponent(Component comp, Object constraints) Adds the specified component to this card layout's internal table of names.
void	addLayoutComponent(String name, Component comp) Deprecated. replaced by addLayoutComponent(Component, Object).
int	getHgap() Gets the horizontal gap between components.
float	getLayoutAlignmentX(Container parent) Returns the alignment along the x axis.
float	getLayoutAlignmentY(Container parent) Returns the alignment along the y axis.
int	getVgap() Gets the vertical gap between components.
void	invalidateLayout(Container target) Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.
void	layoutContainer(Container parent) Lays out the specified container using this card layout.
Dimension	maximumLayoutSize(Container target) Returns the maximum dimensions for this layout given the components in the specified target container.
Dimension	minimumLayoutSize(Container parent) Calculates the minimum size for the specified panel.
Dimension	preferredLayoutSize(Container parent) Determines the preferred size of the container argument using this card layout.
void	removeLayoutComponent(Component comp) Removes the specified component from the layout.
void	setHgap(int hgap) Sets the horizontal gap between components.
void	setVgap(int vgap) Sets the vertical gap between components.
String	toString() Returns a string representation of the state of this card layout.

Methods inherited from class java.lang.Object

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

Constructor Detail

OverlappingLayout

public OverlappingLayout()

Creates a new card layout with gaps of size zero.

OverlappingLayout

public OverlappingLayout(int hgap,
                         int vgap)

Creates a new card layout with the specified horizontal and vertical gaps. The horizontal gaps are placed at the left and right edges. The vertical gaps are placed at the top and bottom edges.

Parameters:

hgap - the horizontal gap.

vgap - the vertical gap.

Method Detail

getHgap

public int getHgap()

Gets the horizontal gap between components.

Returns:

the horizontal gap between components.

Since:

JDK1.1

See Also:

CardLayout.setHgap(int), CardLayout.getVgap()

setHgap

public void setHgap(int hgap)

Sets the horizontal gap between components.

Parameters:

hgap - the horizontal gap between components.

Since:

JDK1.1

See Also:

CardLayout.getHgap(), CardLayout.setVgap(int)

getVgap

public int getVgap()

Gets the vertical gap between components.

Returns:

the vertical gap between components.

See Also:

CardLayout.setVgap(int), CardLayout.getHgap()

setVgap

public void setVgap(int vgap)

Sets the vertical gap between components.

Parameters:

vgap - the vertical gap between components.

Since:

JDK1.1

See Also:

CardLayout.getVgap(), CardLayout.setHgap(int)

addLayoutComponent

public void addLayoutComponent(Component comp,
                               Object constraints)

Adds the specified component to this card layout's internal table of names. The object specified by constraints must be a string. The card layout stores this string as a key-value pair that can be used for random access to a particular card. By calling the show method, an application can display the component with the specified name.

Specified by:

addLayoutComponent in interface LayoutManager2

Parameters:

comp - the component to be added.

constraints - a tag that identifies a particular card in the layout.

Throws:

IllegalArgumentException - if the constraint is not a string.

See Also:

CardLayout.show(java.awt.Container, java.lang.String)

addLayoutComponent

@Deprecated
public void addLayoutComponent(String name,
                                           Component comp)

Deprecated. replaced by addLayoutComponent(Component, Object).

Specified by:

addLayoutComponent in interface LayoutManager

removeLayoutComponent

public void removeLayoutComponent(Component comp)

Removes the specified component from the layout. If the card was visible on top, the next card underneath it is shown.

Specified by:

removeLayoutComponent in interface LayoutManager

Parameters:

comp - the component to be removed.

See Also:

Container.remove(java.awt.Component), Container.removeAll()

preferredLayoutSize

public Dimension preferredLayoutSize(Container parent)

Determines the preferred size of the container argument using this card layout.

Specified by:

preferredLayoutSize in interface LayoutManager

Parameters:

parent - the parent container in which to do the layout

Returns:

the preferred dimensions to lay out the subcomponents of the specified container

See Also:

Container.getPreferredSize(), CardLayout.minimumLayoutSize(java.awt.Container)

minimumLayoutSize

public Dimension minimumLayoutSize(Container parent)

Calculates the minimum size for the specified panel.

Specified by:

minimumLayoutSize in interface LayoutManager

Parameters:

parent - the parent container in which to do the layout

Returns:

the minimum dimensions required to lay out the subcomponents of the specified container

See Also:

Container.doLayout(), CardLayout.preferredLayoutSize(java.awt.Container)

maximumLayoutSize

public Dimension maximumLayoutSize(Container target)

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

Specified by:

maximumLayoutSize in interface LayoutManager2

Parameters:

target - the component which needs to be laid out

See Also:

Container, minimumLayoutSize(java.awt.Container), preferredLayoutSize(java.awt.Container)

getLayoutAlignmentX

public float getLayoutAlignmentX(Container parent)

Returns the alignment along the x axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Specified by:

getLayoutAlignmentX in interface LayoutManager2

getLayoutAlignmentY

public float getLayoutAlignmentY(Container parent)

Returns the alignment along the y axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

Specified by:

getLayoutAlignmentY in interface LayoutManager2

invalidateLayout

public void invalidateLayout(Container target)

Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.

Specified by:

invalidateLayout in interface LayoutManager2

layoutContainer

public void layoutContainer(Container parent)

Lays out the specified container using this card layout.

Each component in the parent container is reshaped to be the size of the container, minus space for surrounding insets, horizontal gaps, and vertical gaps.

Specified by:

layoutContainer in interface LayoutManager

Parameters:

parent - the parent container in which to do the layout

See Also:

Container.doLayout()

toString

public String toString()

Returns a string representation of the state of this card layout.

Overrides:

toString in class Object

Returns:

a string representation of this card layout.