camerauis/cameraxui/cxengine/inc/cxeviewfindercontrolsymbian.h
branchRCL_3
changeset 23 61bc0f252b2b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxengine/inc/cxeviewfindercontrolsymbian.h	Tue Aug 31 15:03:46 2010 +0300
@@ -0,0 +1,115 @@
+/*
+* 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 __CXEVIEWFINDERCONTROLSYMBIAN_H__
+#define __CXEVIEWFINDERCONTROLSYMBIAN_H__
+
+//  Include Files
+#include <ecam.h>
+#include "cxeviewfindercontrol.h"
+#include "cxestatemachine.h"
+#include "cxesettings.h"
+
+//  Constants
+
+
+//  Class Definitions
+
+class CxeCameraDeviceControl;
+class CxeCameraDevice;
+class RWindowBase;
+class CxeVideoContainer;
+
+
+
+class CxeViewfinderControlSymbian : public CxeViewfinderControl,
+                                    public CxeStateMachine
+{
+    Q_OBJECT
+
+public:
+
+    CxeViewfinderControlSymbian(CxeCameraDevice &cameraDevice,
+            CxeCameraDeviceControl &mCameraDeviceControl);
+    virtual ~CxeViewfinderControlSymbian();
+
+public: // from base class
+
+    void setWindow(WId windowId);
+
+    /*
+    * stops the view finder.
+    */
+    void stop();
+
+    /*
+    * Get current state of view finder control
+    * returns one of Vf states defined above.
+    */
+    State state() const;
+
+    /*
+    * Start view finder
+    * @returns CxeError::Id error code
+    */
+    CxeError::Id start();
+
+    /*!
+    * Returns Device's Display resolution
+    */
+    QSize deviceDisplayResolution() const;
+
+protected: // from CxeStateMachine
+    void handleStateChanged(int newStateId, CxeError::Id error);
+
+protected:
+    void initializeStates();
+
+protected slots:
+    // notifications when camera reference is changed
+    void prepareForCameraDelete();
+    void handleCameraAllocated(CxeError::Id error);
+    void handleVfFrame(MCameraBuffer* buffer, int error);
+    void prepareForRelease();
+
+private:
+    /*
+    * Intializes viewfinder based on VF mode
+    * returns CxeEngine Std error code
+    */
+    int initViewfinder();
+    void createViewfinderWindowL();
+    void releaseCurrentViewfinder();
+
+private:
+    // data members
+    CxeCameraDevice &mCameraDevice;
+    CxeCameraDeviceControl &mCameraDeviceControl;
+
+    RWindowBase *mUiWindow;
+    RWindowBase *mVideoWindow;
+    CxeVideoContainer *mVideoContainer;
+
+    TRect mWindowRect;
+    CCamera::CCameraDirectViewFinder *mDirectViewfinder;
+
+    bool mDirectViewfinderInUse;
+};
+
+
+
+#endif  // __CXEVIEWFINDERCONTROLSYMBIAN_H__
+