--- a/mulwidgets/gesturehelper/src/pointercapturer.cpp Mon Jun 21 16:15:51 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,169 +0,0 @@
-/*
-* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: Alf control group and control for capturing pointer events
-*
-*/
-
-#include "pointercapturer.h"
-
-#include <alf/alfcontrol.h>
-#include <alf/alfcontrolgroup.h>
-#include <alf/alfdisplay.h>
-#include <alf/alfenv.h>
-#include <alf/alfevent.h>
-#include <alf/alfroster.h>
-
-#include "gesturehelperimpl.h"
-
-namespace GestureHelper
-{
-
-/**
- * CPointerCaptureControl
- * Gesture control own a gesture helper, and captures any pointer events that
- * no other control captures. After it captures pointer down event, it will
- * capture all pointer events until pointer up. It does this by bringing its
- * control group to the top upon pointer down, and lowering the control group
- * to the botton upon pointer up.
- */
-NONSHARABLE_CLASS( CPointerCaptureControl ) : public CAlfControl
- {
-public:
- /** Two-phased constructor */
- static CPointerCaptureControl* NewLC( CGestureHelperImpl& aHelper,
- CAlfEnv& aEnv, CAlfDisplay& aDisplay )
- {
- CPointerCaptureControl* self = new ( ELeave ) CPointerCaptureControl( aHelper );
- CleanupStack::PushL( self );
- self->ConstructL( aEnv ); // construct base class
- self->BindDisplay( aDisplay );
- self->AppendVisualL( EAlfVisualTypeVisual );
- return self;
- }
-
- void StartCaptureL()
- {
- User::LeaveIfError( Display()->Roster().SetPointerEventObservers(
- EAlfPointerEventReportDrag | EAlfPointerEventReportUnhandled,
- *this ) );
- Display()->Roster().ShowL( *ControlGroup(), KAlfRosterShowAtTop );
- }
-
- void StopCapture()
- {
- ( void ) Display()->Roster().SetPointerEventObservers( 0, *this );
- TRAP_IGNORE( Display()->Roster().ShowL( *ControlGroup(), KAlfRosterShowAtBottom ) );
- }
-
-private:
- /** Constructor */
- CPointerCaptureControl( CGestureHelperImpl& aHelper )
- : iHelper( aHelper )
- {
- }
-
- // From CAlfControl
- TBool OfferEventL( const TAlfEvent& aEvent )
- {
- TBool consumed = EFalse;
- if ( aEvent.IsPointerEvent() )
- {
- // pointer down for first pointer should never come here if everything is
- // working properly. if pointer event comes here, stop capturing and allow the
- // event to fall to the controls below
- if ( iHelper.StrayEvent(aEvent.PointerEvent() ))
- {
- StopCapture();
- }
- else
- {
- consumed = iHelper.HandlePointerEventL( aEvent.PointerEvent() );
- }
- }
- return consumed;
- }
-
-private:
- /// gesture helper that analyses pointer sequences. own.
- CGestureHelperImpl& iHelper;
-
- };
-
-} // namespace GestureHelper
-
-using namespace GestureHelper;
-
-// ----------------------------------------------------------------------------
-// Two phase constructor
-// ----------------------------------------------------------------------------
-//
-CPointerCapturer* CPointerCapturer::NewL()
- {
- return new ( ELeave ) CPointerCapturer();
- }
-
-// ----------------------------------------------------------------------------
-// Two phase constructor
-// ----------------------------------------------------------------------------
-//
-CPointerCapturer::~CPointerCapturer()
- {
- if ( iCaptureControl )
- {
- // deleting the control group will also delete the control
- iCaptureControl->Env().DeleteControlGroup( iControlGroupId );
- }
- }
-
-// ----------------------------------------------------------------------------
-// InitForAlfredL
-// ----------------------------------------------------------------------------
-//
-void CPointerCapturer::InitForAlfredL( CGestureHelperImpl& aHelper,
- CAlfEnv& aEnv, CAlfDisplay& aDisplay, TInt aControlGroupId )
- {
- CAlfControlGroup& group = aEnv.NewControlGroupL( aControlGroupId );
- CPointerCaptureControl* control = CPointerCaptureControl::NewLC( aHelper,
- aEnv, aDisplay );
- group.AppendL( control );
- CleanupStack::Pop( control );
-
- // store control only after it has been successfully added to group
- iCaptureControl = control;
- iControlGroupId = aControlGroupId;
- }
-
-// ----------------------------------------------------------------------------
-// StartCaptureL
-// ----------------------------------------------------------------------------
-//
-void CPointerCapturer::StartL()
- {
- if ( iCaptureControl )
- {
- iCaptureControl->StartCaptureL();
- }
- }
-
-// ----------------------------------------------------------------------------
-// StopCapture
-// ----------------------------------------------------------------------------
-//
-void CPointerCapturer::Stop()
- {
- if ( iCaptureControl )
- {
- iCaptureControl->StopCapture();
- }
- }