The Model-View-Controller Architecture - Essentials of Interactive Computer Graphics - page 108

class CViewController {
private : CApplicationModel TheModel = null // Reference to the application state
CApplicationView

TheView = null // for drawing to the desirable region

public :
void Initialize(CApplicationMode aModel, CUIDrawArea anArea) {
// anArea on the application window for drawing
TheView = new CApplicationView( anArea )
TheModel = aModel
// Register Event Service Routines
GUISystem ::RegisterServiceRoutine( GUISystem ::LMBDown, LMBDownRoutine)
GUISystem ::RegisterServiceRoutine( GUISystem ::LMBDrag, LMBDragRoutine)
GUISystem ::RegisterServiceRoutine( GUISystem ::LMBUp, LMBUpRoutine)
GUISystem ::RegisterServiceRoutine( GUISystem ::RMBDown, RMBDownRoutine)
GUISystem ::RegisterServiceRoutine( GUISystem ::RedrawEvent, RedrawRoutine)

}

}

Source file. Pseudocode; no
corresponding source file.

class CMainAppController {
private : CViewController aViewController; // For drawing and mouse interaction

public :
void Initialize(CApplicationModel aModel) {

TheModel = aModel
// initialize the drawing area
aViewController.Initialize(aModel, areaForDrawing)
// Register Event Service Routines
GUISystem ::DefineTimerPeriod(SimulationUpdateInterval)
GUISystem ::RegisterServiceRoutine( GUISystem :: SliderBar, SliderBarRoutine)
GUISystem ::RegisterServiceRoutine( GUISystem :: TimerEvent, ServiceTimer)

}

}

SystemInitialization () {
CApplicationModel aModel = new CApplicationModel();
CMainAppController mainApp = new CAppController()

mainApp.Initialize(aModel)

}

Listing 5.3. The controller of the ball-shooting program.