1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef CXEVIEWFINDERCONTROL_H_

    18 #define CXEVIEWFINDERCONTROL_H_

    19 

    20 #include <QObject> 

    21 #include <QWidget> // for WId

    22 #include <QMetaType>

    23 #include "cxeerror.h"

    24 

    25 class CxeViewfinderControl : public QObject

    26 {

    27     Q_OBJECT

    28 public:

    29 

    30     enum State

    31         {

    32         Uninitialized = 0x01, // VF not yet initialized

    33         Ready         = 0x02, // VF initialized but not running

    34         Running       = 0x04, // VF running

    35         };

    36 

    37     virtual void setWindow(WId windowId) = 0;

    38 

    39     /*!

    40     * Start viewfinder 

    41     * @return CxeEngine specific error code

    42     */

    43     virtual CxeError::Id start() = 0;

    44     

    45     /*!

    46     * Stop viewfinder 

    47     */

    48     virtual void stop() = 0;

    49     

    50     /*!

    51     * Current viewfinder state

    52     */

    53     virtual State state() const = 0;

    54 

    55     /*!

    56     * Returns Device's Display resolution

    57     */

    58     virtual QSize deviceDisplayResolution() const = 0;

    59 

    60 signals:

    61     void stateChanged(CxeViewfinderControl::State newState, CxeError::Id error);

    62 

    63 protected:

    64     CxeViewfinderControl() {}

    65 

    66 private:

    67     Q_DISABLE_COPY(CxeViewfinderControl)

    68 };

    69 

    70 Q_DECLARE_METATYPE(CxeViewfinderControl::State)

    71 

    72 #endif /*CXEVIEWFINDERCONTROL_H_*/