Package net.sf.jguiraffe.gui.layout

This package contains the platform-independent base classes and helper classes for the layout managers provided by the JGUIraffe library.

See: Description

Interface Summary

Interface	Description
PercentLayoutPlatformAdapter	Definition of an interface that encapsulates platform (library) specific access to GUI components that are managed by a percent layout manager.
UnitSizeHandler	Definition of an interface for performing size calculations in a manner independent of a certain component model.

Class Summary

Class	Description
BorderLayout	A GUI library independent implementation of the AWT layout manager BorderLayout.
ButtonLayout	A layout manager that deals with button bars for dialogs.
CellConstraints	A class for describing column and row constraints for the PercentLayout layout manager.
CellConstraints.Builder	A builder class for creating instances of CellConstraints.
CellGroup	A simple helper class to define columns and rows with identical size in PercentLayout.
NumberWithUnit	A class that combines a value with a unit.
PercentData	A constraints class used by PercentLayout.
PercentData.Builder	A builder implementation for creating instances of PercentData.
PercentLayout	The concrete percent layout implementation.
PercentLayoutBase	The main class of the percent layout manager.

Enum Summary

Enum	Description
ButtonLayout.Alignment	An enumeration class for the alignment of a ButtonLayout.
CellAlignment	An enumeration class that defines the possible alignments of components in the cells of a percent layout.
CellSize	An enumeration class that defines possible sizes for the cells of a percent layout.
Unit	An enumeration class for defining units.

Package net.sf.jguiraffe.gui.layout Description

This package contains the platform-independent base classes and helper classes for the layout managers provided by the JGUIraffe library.

The most important class in this package is PercentLayoutBase which implements the basic functionality of the percent layout layout manager. Percent layout organizes components in a tabular structure. For each cell of the table properties like the initial size, the alignment, or a weight factor can be defined. The weight factor controls how additional space that becomes available if the user resizes the window is assigned to the cells comprising the layout. The properties of a cell are specified by an instance of CellConstraints.

The PercentLayout class is the platform-independent implementation of percent layout. Based on the same concepts there are some other platform-independent layout manager implementations:

• BorderLayout provides the same functionality as the AWT layout manager with the same name with some slight enhancements.
• ButtonLayout is specialized on layouting the command buttons of a dialog (e.g. a bar at the bottom of the dialog containing buttons like Save, Cancel, or Help. All buttons have the same size and space between them.

The term platform-independent in this context means that the layout manager classes defined in this package implement the basic layouting algorithms, but they do not adhere to special layout manager interfaces. Other packages provide concrete sub classes of these classes that can be used in specific GUI toolkits, e.g. Swing.

$Id: package.html 205 2012-01-29 18:29:57Z oheger $