- Forward


A Flexible Static Visual Content System


Prof. David Bernstein
James Madison University

Computer Science Department
bernstdh@jmu.edu

Print

The Current System
Back Forward
  • An Observation:
    • A Content object can only contain one ``piece'' of visual content.
  • Examples:
    • We can not create one sampled.Content object that used one BufferedImage as a character's head and another BufferedImage as its body
    • We cannot create a described.Content object that encapsulates, for example, a house with a door and roof that are different colors
An Additional Requirement
Back Forward
The system must support visual content that has multiple components parts
Design Alternatives Ignoring Content Types
Back Forward

One Obvious Design

images/TransformableContent_aggregate.gif
Design Alternatives Ignoring Content Types (cont.)
Back Forward

Using the Composite Pattern

images/TransformableContent_composite.gif
Design Alternatives Incorporating Content Types
Back Forward

Three "Copies" of the Composite

images/CompositeContent_duplication.gif
Design Alternatives Incorporating Content Types (cont.)
Back Forward

One Composite

images/CompositeContent_no-duplication.gif
Design Alternatives Incorporating Content Types (cont.)
Back Forward

Using an Abstract Parent

images/CompositeContent_no-generics.gif
Design Alternatives Incorporating Content Types (cont.)
Back Forward

Using a Parameterized Parent

images/CompositeContent.gif
visual.statik Package
Back Forward

AbstractAggregateContent

javaexamples/visual/statik/AbstractAggregateContent.java (Fragment: skeleton)
 
javaexamples/visual/statik/AbstractAggregateContent.java (Fragment: content)
 
javaexamples/visual/statik/AbstractAggregateContent.java (Fragment: render)
 
javaexamples/visual/statik/AbstractAggregateContent.java (Fragment: bounds)
 
visual.statik Package (cont.)
Back Forward

CompositeContent

javaexamples/visual/statik/CompositeContent.java
 
visual.statik.sampled Package
Back Forward

CompositeContent

javaexamples/visual/statik/sampled/CompositeContent.java
 
visual.statik.described Package
Back Forward

CompositeContent

javaexamples/visual/statik/described/CompositeContent.java
 
Examples
Back Forward

described.CompositeContent

javaexamples/visual/statik/described/BoringBuzzy.java
 
Examples (cont.)
Back Forward

Mixed Content

javaexamples/visual/statik/FancyBuzzy.java
 
Examples (cont.)
Back Forward

A Visualization

javaexamples/visual/statik/VisualizationApp.java
 
Examples (cont.)
Back Forward

Picture-in-a-Picture

javaexamples/visual/statik/PIPApp.java
 
There's Always More to Learn
Back -