Perforce JViews TGO Sample: Network Component - Composite Graphics

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Description

This sample shows how to use custom business classes with the network component, and how to create your own graphic objects to represent your business objects and their attributes.

How to Use the Sample

The main frame contains a simple network component with several different types of custom nodes and links. A network component has a default toolbar that provides a set of predefined interactors:

• Select
• Pan
• Reset Zoom
• Zoom In
• Zoom Out
• Fit to Contents

The main frame also contains a panel that allows you to toggle the visibility of three attributes:

• New alarms: this attribute is graphically represented by an alarm balloon positioned at the top-right of the object.
• Test: this attribute represents the test status of the object, and is graphically represented by an alarm balloon positioned at the bottom-right of the object.
• Contact: this attribute represents the contact information, and is graphically represented as a line inside an Information window. The Information window also contains the representation of the "site" attribute.

How to Run the Sample as an Application

This sample can be run as an application. The installation directory contains an executable JAR file, network-compositeGraphic.jar, that allows you to execute the sample with a double click from a file browser. Note that if you are using Internet Explorer, you can open the installation directory and execute the JAR file from the browser. This technique may not work in other Web browsers.

Alternatively, you can run the sample application from the command line. First check that the Ant utility is properly configured. If not, see the instructions on how to configure Ant for Perforce JViews.

Then, go to the installation directory of the sample and type:

ant run

Topics Covered

• Basic initialization.
  See the network/basic sample for details.
  
• Creating custom business classes
  See the network/customClasses sample for details.
  
• Creating graphic objects to represent objects and attributes of custom classes.
• Mapping attributes of custom classes to graphic properties of network nodes and links using style sheets.
• Toggling the visibility of decorations by using style sheets and pseudoclasses.

Detailed Description

This sample differs from the customClasses sample in that it shows objects created using custom graphics, and in that it allows you to toggle the visibility of some decorations.

The custom classes used in this sample are defined in customClasses.

The attributes of the custom classes are mapped to the graphic attributes of the network nodes by a set of style sheets declared in composite.

Installation Directory

The Network Component - Composite Graphics sample is installed here.

Classes Involved

• ilog.tgo.IltSystem

  The class that initializes a JViews TGO application.

• ilog.tgo.datasource.IltDefaultDataSource

  The default datasource implementation.

• ilog.cpl.IlpNetwork

  The network component.

• ilog.views.graphic.composite.IlvCompositeGraphic

  The composite graphic implementation.

• ilog.views.graphic.composite.layout.IlvAttachmentLayout

  The layout implementation to attach decorations in a composite graphic.

• ilog.views.graphic.composite.layout.IlvAttachmentConstraint

  The attachment contraint to place decorations in a composite graphic.

Source Files

• compositeGraphic.Main

  The entry point of the sample.

• compositeGraphic.ToggleInfoWindowAction

  The action to make the information window visible.

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