Doing MVC in Swing

1
Swing Meets MVC

• Doing MVC in Swing

2
Agenda

• Questions

3
Swings modified MVC design

• Separable model architecture
• Model
• treated as a separate element
• View controller
• Treated as a single UI
• delegate

4
Example pieces in a JButton
5
Pluggable look-and-feel

• Architecture separates the look-and-feel of a
  component
• Different instances of the UI object provide a
  different look-and-feel
• http//java.sun.com/products/jfc/tsc/articles/arch
  itecture/index.html

6
Model types

• GUI-state models
• visual status of a GUI component
• example button is pressed
• selected items in list
• Application-data models
• quantifiable data with application meanings
• example cell values in table
• items displayed in list

7
Common component-to-model mapping
8
Model change notification

• Lightweight notification that the state of the
  component has changed and requires listeners to
  query the model about what changed
• Stateful notification that describes how the
  model has changed

9
Examples of model change notifications

• Lightweight notification
• Stateful notification

10
Shared model definitions

• Notice some components use the same model
  interfaces when data abstraction for component is
  similar
• Common models enable
• automatic connectability
• between components

11
Examples

• Example 1
• GUI model controlling a JButton
• Example 2
• Accessing a JComboBoxs data model
• Example 3
• A JButton and JCheckBox sharing a model
• Example 4
• Creating a custom TemparatureModel bridging
  different different models and UI components