// Demonstration of the ability to manipulate Tabs on 

// a PPG from within PPG logic code.

//

// It is possible to find out what tab is active,

// change the tab, and to get notified when the tab changes.

// Create a basic Custom PSet that doesn't even have any parameters,

// just layout elements.

var oPSet = ActiveSceneRoot.AddProperty( "CustomProperty",false,"TabDemo" )

var oLayout = oPSet.PPGLayout

oLayout.AddTab( "Tab 1" );

oLayout.AddButton( "Tab1Button", "Next" );

oLayout.AddTab( "Tab 2" );

oLayout.AddButton( "Tab2Button", "Previous" );

oLayout.AddTab( "LeaveMeAlone" ) ;

oLayout.AddButton( "NeverSeen" );

oLayout.Language = "JScript";

oLayout.Logic = OnInit.toString() + 

		Tab1_OnTab.toString() + 

		Tab2_OnTab.toString() + 

		LeaveMeAlone_OnTab.toString() +

		Tab1Button_OnClicked.toString() +

		Tab2Button_OnClicked.toString() ;

InspectObj( oPSet )

//

// The following is the logic code that

// controls the behavior of the PPG.

//

function OnInit()

{

	// Note: Currently it is not possible to change

	// tabs during the OnInit callback		

}

function Tab1Button_OnClicked()

{

	// "Next" button

	PPG.CurrentTab = "Tab 2" ;

}

function Tab2Button_OnClicked()

{

	// Move to the Previous tab

	PPG.CurrentTab = "Tab 1" ;

}

function Tab1_OnTab()

{

	// Called when Tab1 gets clicked

	// and when we first open the PPG.

	// (But not called when we change

	// the tab programmatically.)

	// Notice how the space in the tab label ("Tab 1")

	// has been removed to generate the callback name

	// ("Tab1_OnTab")

	Logmessage( "Current tab is: " + PPG.CurrentTab ) ;	

}

function Tab2_OnTab()

{

	Logmessage( "Now current tab is: " + PPG.CurrentTab ) ;

}

function LeaveMeAlone_OnTab()

{

	// Rather a harsh user interface - 

	// prevent users from going to this

	// tab.  This might be useful when implementing

	// a Wizard-style workflow 

	PPG.CurrentTab = "Tab 1" ;

}