LocalPhysicalCameraView.h

/*--------------------------------------------------------------------------------------------
Copyright (c) 2019, NDEVR LLC
tyler.parke@ndevr.org
  __    __   ____     _____ __     __  _______
 |  \  |  | |  __ \  |  ___|\ \   / / |   __  \
 |   \ |  | | |  \ \ | |___  \ \ / /  |  |__)  |
 |  . \|  | | |__/ / | |___   \ V /   |   _   /
 |  |\    |_|_____/__|_____|___\_/____|  | \  \
 |__| \__________________________________|  \__\
 
Subject to the terms of the Enterprise+ Agreement, NDEVR hereby grants
Licensee a limited, non-exclusive, non-transferable, royalty-free license
(without the right to sublicense) to use the API solely for the purpose of
Licensee's internal development efforts to develop applications for which
the API was provided.
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
 
Library: Widgets
File: LocalPhysicalCameraView
Included in API: True
Author(s): Tyler Parke
 *-----------------------------------------------------------------------------------------**/
#pragma once
#include "DLLInfo.h"
#define NDEVR_SUPPORTS_LOCAL_CAMERA 1
#if NDEVR_SUPPORTS_LOCAL_CAMERA
#include "DesignWidgets/Headers/PhysicalCameraView.h"
#include "Design/Headers/Camera.h"
#include "Base/Headers/Pointer.hpp"
#include "Base/Headers/File.h"
#include <qglobal.h>
#include <QCameraDevice>
class QAudioInput;
class QImageCapture;
class QMediaPlayer;
class QCamera;
class QCameraDevice;
class QVideoWidget;
class QMediaDevices;
class QGraphicsView;
class QMediaRecorder;
class QMediaCaptureSession;
class QGraphicsLineItem;
class QCameraInfo;
class QCameraImageCapture;
class QVideoEncoderSettings;
class QAudioEncoderSettings;
class QImage;
namespace NDEVR
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    class QCustomComboBox;
    class Button;
    class LocalVideoRenderer;
    class LOCAL_CAMERA_STREAM_API LocalPhysicalCameraView : public PhysicalCameraView
    {
        Q_OBJECT
    public:
        LocalPhysicalCameraView();
        LocalPhysicalCameraView(const DynamicPointer<Camera>& camera, QWidget* parent = nullptr);
        virtual bool setCameraSource(const StringView& connection_id) override;
        virtual bool setCameraSource(const QCameraDevice& connection_id);
        virtual void refreshInstance() override;
        void setToDefaultCamera();
        virtual ~LocalPhysicalCameraView();
        virtual void setCameraZoom(fltp08 zoom) override;
        LocalVideoRenderer* videoWidget();
        virtual void setRemoteSource(const StringView& remote);
        void findBestFormat(const QCameraDevice& camera_evice);
        fltp08 defaultScale() const;
        void adjustCrossHairs();
        virtual void resizeEvent(QResizeEvent* event) override;
        bool event(QEvent* event) override;
    protected slots:
        void processCapturedImage(int index, const QImage& img);
        void handleCameraError(int camera_error);
        void handleScreenshotError(int id, int error, const QString& errorString);
        void handleVideoError();
        void updateCameraState(bool state);
        void updateRecorderState(int state);
        void updateRecorderTimespan();
    protected:
        void init() override;
        void updateCameraSourceCombo();
        bool startRecord(const File& file) override;
        bool finishRecord(File file) override;
        virtual bool pauseRecord(bool paused, const File& file) override;
        virtual bool takeImage(const File& file) override;
        virtual void invertScreenColors(bool invert) override;
    protected:
        File m_screenshot_location;                                 
 
        QMediaCaptureSession* m_capture_session = nullptr;          
        QMediaPlayer* m_media_player = nullptr;                     
        QCamera* m_q_camera = nullptr;                              
        QGraphicsView* m_graphics_view;                             
        QAudioInput* m_audio_input = nullptr;                       
        QImageCapture* m_image_capture = nullptr;                   
        LocalVideoRenderer* m_video_widget = nullptr;               
        QMediaRecorder* m_media_recorder = nullptr;                 
        QCustomComboBox* m_selection_combo;                         
        QGraphicsLineItem* m_cross_hair_x = nullptr;                
        QGraphicsLineItem* m_cross_hair_y = nullptr;                
        Button* m_camera_flash_button;                              
    };

    struct MediaDeviceInfo
    {
        TranslatedString name;      
        String id;                  
        QCameraDevice device;       
    };

    class QMediaDeviceManager : public QObject
    {
        Q_OBJECT
    private:
        QMediaDeviceManager(QObject* parent = nullptr);
    public:
        static QMediaDeviceManager& Default();
        const Buffer<MediaDeviceInfo>& cameraDevices() const { return m_camera_devices; }
    protected slots:
        void updateCameraSources();
    protected:
        QMediaDevices* m_devices = nullptr;         
        Buffer<MediaDeviceInfo> m_camera_devices;   
    };

    class LocalPhysicalCameraViewFactory : public PhysicalCameraViewFactory
    {
    public:
        virtual PhysicalCameraView* createView(const DynamicPointer<Camera>& camera, DesignObjectLookup* model_manager, QWidget* parent) override;
        virtual bool canCreateView(const DynamicPointer<Camera>& camera, DesignObjectLookup* model_manager, bool ignore_active) override;
        virtual Buffer<DynamicPointer<Camera>> availableCameraStreams() const override;
    };
#else
    class NDEVR_WIDGETS_API LocalPhysicalCameraView : public PhysicalCameraView
    {
        Q_OBJECT
    public:
        LocalPhysicalCameraView();
        LocalPhysicalCameraView(DynamicPointer<Camera>& camera, QWidget* parent = nullptr);
        virtual bool setCameraSource(const String& connection_id) override;
        virtual bool setCameraSource(const QCameraInfo& connection_id);
        virtual void refreshInstance() override;
        void setToDefaultCamera();
        QAudioEncoderSettings audioSettings() const;
        QVideoEncoderSettings videoSettings() const;
        virtual ~LocalPhysicalCameraView();
    protected slots:
        void processCapturedImage(int index, const QImage& img);
        void handleCameraError(int camera_error);
    protected:
        bool startRecord(const File& file) override;
        bool finishRecord(const File& file) override;
        virtual bool takeImage(const File& file) override;
        virtual void invertScreenColors(bool invert) override;
        void updateCameraState(int state);
    protected:
        File m_screenshot_location;                 
        QCamera* m_camera;                          
        QCameraImageCapture* imageCapture;          
        QMediaRecorder* mediaRecorder;              
        QVideoWidget* m_video_widget;               
    };
#endif
}
#endif