camerauis/cameraxui/cxengine/inc/cxeautofocuscontrolsymbian.h
changeset 19 d9aefe59d544
child 24 2094593137f5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxengine/inc/cxeautofocuscontrolsymbian.h	Fri Apr 16 14:51:30 2010 +0300
@@ -0,0 +1,96 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+#ifndef CXEAUTOFOCUSCONTROLSYMBIAN_H
+#define CXEAUTOFOCUSCONTROLSYMBIAN_H
+
+#include <QVariant>
+#include <ecam.h> // CCamera
+#include <ecam/ecamadvsettingsintf.h> // CCamera
+#include "cxenamespace.h"
+#include "cxeautofocuscontrol.h"
+#include "cxestatemachine.h"
+
+//forward declarations
+class CxeCameraDevice;
+
+
+
+/**
+ * CxeAutoFocusControl is responsible for handling Autofocus events from the camera adaptation.
+ * It also routes the Autofocus successful and failed events to the clients interested in Žknowing the
+ * status of Autofocus.
+ */
+class CxeAutoFocusControlSymbian : public CxeAutoFocusControl,
+                                   public CxeStateMachine
+    {
+    Q_OBJECT
+public:
+
+    CxeAutoFocusControlSymbian( CxeCameraDevice &cameraDevice );
+    virtual ~CxeAutoFocusControlSymbian();
+
+    CxeError::Id  start();
+    void cancel();
+    void setMode( CxeAutoFocusControl::Mode newMode );
+    CxeAutoFocusControl::Mode mode() const;
+
+    CxeAutoFocusControl::State state() const;
+    bool supported() const;
+
+protected: // from CxeStateMachine
+    void handleStateChanged( int newStateId, CxeError::Id error );
+
+protected:
+    void initializeStates();
+    // intializes all the resources we need for AF functionality
+    void initializeResources();
+
+    void setFocusRange(CCamera::CCameraAdvancedSettings::TFocusRange range);
+    CCamera::CCameraAdvancedSettings::TFocusRange  focusRange() const;
+
+    void setFocusType(CCamera::CCameraAdvancedSettings::TAutoFocusType type);
+    int supportedFocusTypes() const;
+    CCamera::CCameraAdvancedSettings::TAutoFocusType focusType() const;
+
+protected slots:
+
+    // notifications when camera reference is changed
+    void prepareForCameraDelete();
+    void handleCameraAllocated(CxeError::Id error);
+
+    // notification for when camera is released
+    void prepareForRelease();
+
+    // Handle ECam events
+    void handleCameraEvent( int eventUid, int error );
+    void handleSceneChanged(CxeScene& scene);
+
+private:
+
+    // handles to-do things if the event is AF event
+    void handleAfEvent(int eventUid, int error);
+
+protected:
+    CxeCameraDevice &mCameraDevice;
+    CCamera::CCameraAdvancedSettings *mAdvancedSettings; // not owned
+    CxeAutoFocusControl::Mode mAfMode;
+    CCamera::CCameraAdvancedSettings::TFocusRange mAFRange;
+    bool mCancelled;
+    };
+
+#endif // CXEAUTOFOCUSCONTROLSYMBIAN_H