How to build a GUI using the C+N library

• Smalltalk Environment-Building GUI Interface
• Smalltalk Language-HIC-Building Windows
• Smalltalk Language-HIC-Building Buttons
• Smalltalk Language-HIC-Building Display (Text) Boxes

Description

To create a user interface using ModelValueViewContainer from Coad and Nicola (using the Count class as an example):

• Make your View class a subclass of ModelValueViewContainer
• Create a buildView: method to create the View.
• Use makeDisplayBoxOn:for: to create display box views.
• Use makeButton:on:for: to create buttons.
• Use constraintFrame:corner: to layout the views.
• Use addView:in: to compose the views.
• Be sure to send the changed: message to update text views.

Strategy

Expected Outcome

Concepts related to this step:

• What is the Model-View-Controller paradigm?

Examples of this Generic Step

• Step: Build the ButtonLessViewContainer class and its methods in Project: P1-DivisorCount (Derrick)
• Step: Create the view container for spreadsheets. in Project: P2 - Spreadsheets (Derrick)
• Step: Create the classes Spreadsheet, SpreadsheetSumSheet, CellAverageSheet, and SpreadSheetViewContainer in Project: P2 - Spreadsheets (Janak)
• Step: Define the SpreadSheetViewContainer class in Project: P2-Spreadsheet (Salman)
• Step: Build the SlaveViewContainer in Project: P1-DivisorCount (Masud)