Undo_ContentView Class Reference

CP_View class that draws rectangles when the user clicks on the view to demonstrate the ability to undo/redo these actions.

List of all members.

Public Member Functions
Constructor / Destructor
	Undo_ContentView (CPLAT::CP_View *inSuperview, const CPLAT::CP_Point &inUpperLeft, const CPLAT::CP_Size &inContentSize)
	Constructor.
virtual	~Undo_ContentView () throw ()
	Destructor.
Protected Member Functions
Drawing
virtual void	OnDraw (CPLAT::CP_Canvas &inCanvas, CPLAT::CP_Region &inUpdateArea)
Events
virtual void	InitEventHandler (CPLAT::CP_EventHandler &inEventHandler)
void	HandleControlHitEvent (CPLAT::CP_Event_Base &inEvent)

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Constructor & Destructor Documentation

Undo_ContentView::Undo_ContentView (  CPLAT::CP_View *  inSuperview, const CPLAT::CP_Point &  inUpperLeft, const CPLAT::CP_Size &  inContentSize )

Constructor. Parameters: inSuperview  The subview handler that contains this pane. inUpperLeft  Upper left corner of pane in releation to its superview. inContentSize  Content size of the pane. Exceptions: none

Undo_ContentView::~Undo_ContentView (   )  throw () [virtual]

Destructor. Exceptions: none

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Member Function Documentation

void Undo_ContentView::OnDraw (  CPLAT::CP_Canvas &  inCanvas, CPLAT::CP_Region &  inUpdateArea )  [protected, virtual]

Called when the view needs to update the visual appearance of itself. In this demo we use the CP_Graphics class to display the rectangles. Parameters: inCanvas  The CP_Canvas to draw into. inUpdateArea  The area that needs to be drawn. Exceptions: none  Returns: void

void Undo_ContentView::InitEventHandler (  CPLAT::CP_EventHandler &  inEventHandler  )  [protected, virtual]

Initializes the event handler by installing a mouse down or control clicked handler to add a new rect for each mouse click. Parameters: inEventHandler  The event handler to add the events to. Exceptions: none  Returns: void

void Undo_ContentView::HandleControlHitEvent (  CPLAT::CP_Event_Base &  inEvent  )  [protected]

Slot called when the user clicks on the view. We use this opportunity to create a new undo / redo action. Parameters: inEvent  The control clicked/mouse down event. Exceptions: none  Returns: void

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The documentation for this class was generated from the following files:

• Undo_ContentView.h
• Undo_ContentView.cpp

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