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50
51#ifndef CAMERA_H
52#define CAMERA_H
53
54#include <QCamera>
55#include <QCameraImageCapture>
56#include <QMediaRecorder>
57#include <QScopedPointer>
58
59#include <QMainWindow>
60
61QT_BEGIN_NAMESPACE
62namespace Ui { class Camera; }
63QT_END_NAMESPACE
64
65class Camera : public QMainWindow
66{
67 Q_OBJECT
68
69public:
70 Camera();
71
72private slots:
73 void setCamera(const QCameraInfo &cameraInfo);
74
75 void startCamera();
76 void stopCamera();
77
78 void record();
79 void pause();
80 void stop();
81 void setMuted(bool);
82
83 void toggleLock();
84 void takeImage();
85 void displayCaptureError(int, QCameraImageCapture::Error, const QString &errorString);
86
87 void configureCaptureSettings();
88 void configureVideoSettings();
89 void configureImageSettings();
90
91 void displayRecorderError();
92 void displayCameraError();
93
94 void updateCameraDevice(QAction *action);
95
96 void updateCameraState(QCamera::State);
97 void updateCaptureMode();
98 void updateRecorderState(QMediaRecorder::State state);
99 void setExposureCompensation(int index);
100
101 void updateRecordTime();
102
103 void processCapturedImage(int requestId, const QImage &img);
104 void updateLockStatus(QCamera::LockStatus, QCamera::LockChangeReason);
105
106 void displayViewfinder();
107 void displayCapturedImage();
108
109 void readyForCapture(bool ready);
110 void imageSaved(int id, const QString &fileName);
111
112protected:
113 void keyPressEvent(QKeyEvent *event) override;
114 void keyReleaseEvent(QKeyEvent *event) override;
115 void closeEvent(QCloseEvent *event) override;
116
117private:
118 Ui::Camera *ui;
119
120 QScopedPointer<QCamera> m_camera;
121 QScopedPointer<QCameraImageCapture> m_imageCapture;
122 QScopedPointer<QMediaRecorder> m_mediaRecorder;
123
124 QImageEncoderSettings m_imageSettings;
125 QAudioEncoderSettings m_audioSettings;
126 QVideoEncoderSettings m_videoSettings;
127 QString m_videoContainerFormat;
128 bool m_isCapturingImage = false;
129 bool m_applicationExiting = false;
130};
131
132#endif
133

source code of qtmultimedia/examples/multimediawidgets/camera/camera.h