Initial copy of QtMultimediaKit.
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Michael Goddard
302
src/imports/multimedia/qdeclarativecamera_p.h
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302
src/imports/multimedia/qdeclarativecamera_p.h
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the plugins of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QDECLARATIVECAMERA_H
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#define QDECLARATIVECAMERA_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of other Qt classes. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qgraphicsvideoitem.h"
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#include <QtCore/qbasictimer.h>
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#include <QtDeclarative/qdeclarativeitem.h>
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#include <QtCore/QTime>
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#include <qcamera.h>
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#include <qcameraimageprocessing.h>
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#include <qcameraimagecapture.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class QTimerEvent;
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class QVideoSurfaceFormat;
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class QDeclarativeCamera : public QDeclarativeItem
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{
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Q_OBJECT
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Q_PROPERTY(State cameraState READ cameraState WRITE setCameraState NOTIFY cameraStateChanged)
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Q_PROPERTY(LockStatus lockStatus READ lockStatus NOTIFY lockStatusChanged)
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Q_PROPERTY(QString errorString READ errorString NOTIFY errorChanged)
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Q_PROPERTY(QString capturedImagePath READ capturedImagePath NOTIFY imageSaved)
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Q_PROPERTY(int iso READ isoSensitivity WRITE setManualIsoSensitivity NOTIFY isoSensitivityChanged)
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Q_PROPERTY(qreal shutterSpeed READ shutterSpeed NOTIFY shutterSpeedChanged)
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Q_PROPERTY(qreal aperture READ aperture NOTIFY apertureChanged)
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Q_PROPERTY(qreal exposureCompensation READ exposureCompensation WRITE setExposureCompensation NOTIFY exposureCompensationChanged)
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Q_PROPERTY(ExposureMode exposureMode READ exposureMode WRITE setExposureMode NOTIFY exposureModeChanged)
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Q_PROPERTY(int flashMode READ flashMode WRITE setFlashMode NOTIFY flashModeChanged)
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Q_PROPERTY(WhiteBalanceMode whiteBalanceMode READ whiteBalanceMode WRITE setWhiteBalanceMode NOTIFY whiteBalanceModeChanged)
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Q_PROPERTY(int manualWhiteBalance READ manualWhiteBalance WRITE setManualWhiteBalance NOTIFY manualWhiteBalanceChanged)
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Q_PROPERTY(QSize captureResolution READ captureResolution WRITE setCaptureResolution NOTIFY captureResolutionChanged)
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Q_PROPERTY(qreal opticalZoom READ opticalZoom WRITE setOpticalZoom NOTIFY opticalZoomChanged)
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Q_PROPERTY(qreal maximumOpticalZoom READ maximumOpticalZoom NOTIFY maximumOpticalZoomChanged)
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Q_PROPERTY(qreal digitalZoom READ digitalZoom WRITE setDigitalZoom NOTIFY digitalZoomChanged)
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Q_PROPERTY(qreal maximumDigitalZoom READ maximumDigitalZoom NOTIFY maximumDigitalZoomChanged)
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Q_ENUMS(State)
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Q_ENUMS(LockStatus)
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Q_ENUMS(Error)
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Q_ENUMS(FlashMode)
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Q_ENUMS(ExposureMode)
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Q_ENUMS(WhiteBalanceMode)
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public:
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enum State
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{
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ActiveState = QCamera::ActiveState,
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LoadedState = QCamera::LoadedState,
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UnloadedState = QCamera::UnloadedState
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};
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enum LockStatus
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{
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Unlocked = QCamera::Unlocked,
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Searching = QCamera::Searching,
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Locked = QCamera::Locked
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};
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enum Error
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{
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NoError = QCamera::NoError,
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CameraError = QCamera::CameraError,
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InvalidRequestError = QCamera::InvalidRequestError,
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ServiceMissingError = QCamera::ServiceMissingError,
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NotSupportedFeatureError = QCamera::NotSupportedFeatureError
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};
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enum FlashMode {
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FlashAuto = 0x1,
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FlashOff = 0x2,
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FlashOn = 0x4,
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FlashRedEyeReduction = 0x8,
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FlashFill = 0x10,
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FlashTorch = 0x20,
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FlashSlowSyncFrontCurtain = 0x40,
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FlashSlowSyncRearCurtain = 0x80,
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FlashManual = 0x100
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};
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enum ExposureMode {
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ExposureAuto = 0,
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ExposureManual = 1,
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ExposurePortrait = 2,
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ExposureNight = 3,
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ExposureBacklight = 4,
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ExposureSpotlight = 5,
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ExposureSports = 6,
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ExposureSnow = 7,
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ExposureBeach = 8,
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ExposureLargeAperture = 9,
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ExposureSmallAperture = 10,
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ExposureModeVendor = 1000
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};
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enum WhiteBalanceMode {
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WhiteBalanceAuto = 0,
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WhiteBalanceManual = 1,
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WhiteBalanceSunlight = 2,
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WhiteBalanceCloudy = 3,
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WhiteBalanceShade = 4,
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WhiteBalanceTungsten = 5,
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WhiteBalanceFluorescent = 6,
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WhiteBalanceIncandescent = 7,
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WhiteBalanceFlash = 8,
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WhiteBalanceSunset = 9,
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WhiteBalanceVendor = 1000
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};
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QDeclarativeCamera(QDeclarativeItem *parent = 0);
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~QDeclarativeCamera();
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State cameraState() const;
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Error error() const;
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QString errorString() const;
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LockStatus lockStatus() const;
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QImage capturedImagePreview() const;
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QString capturedImagePath() const;
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void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
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int flashMode() const;
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ExposureMode exposureMode() const;
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qreal exposureCompensation() const;
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int isoSensitivity() const;
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qreal shutterSpeed() const;
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qreal aperture() const;
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WhiteBalanceMode whiteBalanceMode() const;
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int manualWhiteBalance() const;
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QSize captureResolution() const;
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qreal maximumOpticalZoom() const;
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qreal maximumDigitalZoom() const;
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qreal opticalZoom() const;
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qreal digitalZoom() const;
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public Q_SLOTS:
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void start();
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void stop();
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void setCameraState(State state);
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void searchAndLock();
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void unlock();
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void captureImage();
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void setFlashMode(int);
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void setExposureMode(QDeclarativeCamera::ExposureMode);
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void setExposureCompensation(qreal ev);
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void setManualIsoSensitivity(int iso);
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void setWhiteBalanceMode(QDeclarativeCamera::WhiteBalanceMode mode) const;
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void setManualWhiteBalance(int colorTemp) const;
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void setCaptureResolution(const QSize &size);
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void setOpticalZoom(qreal);
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void setDigitalZoom(qreal);
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Q_SIGNALS:
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void errorChanged();
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void error(QDeclarativeCamera::Error error, const QString &errorString);
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void cameraStateChanged(QDeclarativeCamera::State);
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void lockStatusChanged();
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void imageCaptured(const QString &preview);
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void imageSaved(const QString &path);
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void captureFailed(const QString &message);
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void isoSensitivityChanged(int);
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void apertureChanged(qreal);
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void shutterSpeedChanged(qreal);
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void exposureCompensationChanged(qreal);
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void exposureModeChanged(QDeclarativeCamera::ExposureMode);
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void flashModeChanged(int);
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void whiteBalanceModeChanged(QDeclarativeCamera::WhiteBalanceMode) const;
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void manualWhiteBalanceChanged(int) const;
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void captureResolutionChanged(const QSize&);
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void opticalZoomChanged(qreal);
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void digitalZoomChanged(qreal);
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void maximumOpticalZoomChanged(qreal);
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void maximumDigitalZoomChanged(qreal);
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protected:
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void geometryChanged(const QRectF &geometry, const QRectF &);
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void keyPressEvent(QKeyEvent * event);
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void keyReleaseEvent(QKeyEvent * event);
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private Q_SLOTS:
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void _q_updateState(QCamera::State);
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void _q_nativeSizeChanged(const QSizeF &size);
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void _q_error(int, const QString &);
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void _q_imageCaptured(int, const QImage&);
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void _q_imageSaved(int, const QString&);
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void _q_captureFailed(int, QCameraImageCapture::Error, const QString&);
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void _q_updateFocusZones();
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void _q_updateLockStatus(QCamera::LockType, QCamera::LockStatus, QCamera::LockChangeReason);
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void _q_updateImageSettings();
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void _q_applyPendingState();
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private:
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Q_DISABLE_COPY(QDeclarativeCamera)
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QCamera *m_camera;
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QGraphicsVideoItem *m_viewfinderItem;
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QCameraExposure *m_exposure;
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QCameraFocus *m_focus;
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QCameraImageCapture *m_capture;
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QImage m_capturedImagePreview;
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QString m_capturedImagePath;
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QList <QGraphicsItem*> m_focusZones;
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QTime m_focusFailedTime;
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QImageEncoderSettings m_imageSettings;
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bool m_imageSettingsChanged;
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State m_pendingState;
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bool m_isStateSet;
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bool m_isValid;
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};
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QT_END_NAMESPACE
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QML_DECLARE_TYPE(QT_PREPEND_NAMESPACE(QDeclarativeCamera))
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QT_END_HEADER
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#endif
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