hyperion.ng/include/leddevice/LedDevice.h
Murat Seker 138b7d9c94
Random cleanup (#861)
Co-authored-by: Seker <murat.seker@barco.com>
2020-07-12 09:19:59 +02:00

232 lines
5.2 KiB
C++

#pragma once
// qt includes
#include <QObject>
#include <QString>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonDocument>
#include <QTimer>
#include <QDateTime>
// STL includes
#include <vector>
#include <map>
#include <algorithm>
// Utility includes
#include <utils/ColorRgb.h>
#include <utils/ColorRgbw.h>
#include <utils/RgbToRgbw.h>
#include <utils/Logger.h>
#include <functional>
#include <utils/Components.h>
class LedDevice;
typedef LedDevice* ( *LedDeviceCreateFuncType ) ( const QJsonObject& );
typedef std::map<QString,LedDeviceCreateFuncType> LedDeviceRegistry;
///
/// Interface (pure virtual base class) for LedDevices.
///
class LedDevice : public QObject
{
Q_OBJECT
public:
LedDevice(const QJsonObject& config = QJsonObject(), QObject* parent = nullptr);
~LedDevice() override;
///
/// @brief Get color order of device
/// @return The color order
///
const QString & getColorOrder() const { return _colorOrder; }
///
/// @brief Set the current active ledDevice type
///
/// @param deviceType Device's type
///
void setActiveDeviceType(const QString& deviceType);
///
/// @brief Get the current active ledDevice type
///
const QString & getActiveDeviceType() const { return _activeDeviceType; }
void setLedCount(unsigned int ledCount);
unsigned int getLedCount() const { return _ledCount; }
bool enabled() const { return _enabled; }
int getLatchTime() const { return _latchTime_ms; }
void setLatchTime( int latchTime_ms );
///
/// Check, if device is ready to be used
/// i.e. initialisation and configuration were successfull
///
/// @return True if device is ready
///
bool isReady() const { return _deviceReady; }
///
/// Check, if device is in error state
///
/// @return True if device is in error
///
bool isInError() const { return _deviceInError; }
inline bool componentState() const { return enabled(); }
/// Prints the RGB-Color values to stdout.
///
/// @param[in] ledValues The RGB-color per led
///
static void printLedValues (const std::vector<ColorRgb>& ledValues );
public slots:
///
/// Is called on thread start, all construction tasks and init should run here
///
virtual void start() { _deviceReady = (open() == 0); }
///
/// Update the RGB-Color values to the leds.
/// Handles refreshing of leds.
///
/// @param[in] ledValues The RGB-color per led
/// @return Zero on success else negative (i.e. device is not ready)
///
virtual int updateLeds(const std::vector<ColorRgb>& ledValues);
///
/// Closes the output device.
/// Includes switching-off the device and stopping refreshes
///
virtual void close();
///
/// Enables/disables the device for output.
/// If the device is not ready, it will not be enabled
///
/// @param enable The new state of the device
///
void setEnable(bool enable); ///
signals:
///
/// Emits whenever the led device switches between on/off
/// @param newState The new state of the device
///
void enableStateChanged(bool newState);
protected:
///
/// Initialise a device's configuration
///
/// @param deviceConfig the json device config
/// @return True if success
///
virtual bool init(const QJsonObject &deviceConfig);
///
/// Opens and initiatialises the output device
///
/// @return Zero on succes (i.e. device is ready and enabled) else negative
///
virtual int open();
///
/// Writes the RGB-Color values to the leds.
///
/// @param[in] ledValues The RGB-color per led
///
/// @return Zero on success else negative
///
virtual int write(const std::vector<ColorRgb>& ledValues) = 0;
///
/// Writes "BLACK" to the output stream
///
/// @return Zero on success else negative
///
virtual int writeBlack();
// Helper to pipe device config from constructor to start()
QJsonObject _devConfig;
/// The common Logger instance for all LedDevices
Logger * _log;
/// The buffer containing the packed RGB values
std::vector<uint8_t> _ledBuffer;
bool _deviceReady;
bool _deviceInError;
QString _activeDeviceType;
unsigned int _ledCount;
unsigned int _ledRGBCount;
unsigned int _ledRGBWCount;
/// Timer object which makes sure that led data is written at a minimum rate
/// e.g. Adalight device will switch off when it does not receive data at least every 15 seconds
QTimer* _refresh_timer;
int _refresh_timer_interval;
/// Timestamp of last write
QDateTime _lastWriteTime;
/// Time a device requires mandatorily between two writes
int _latchTime_ms;
protected slots:
/// Write the last data to the leds again
///
/// @return Zero on success else negative
///
int rewriteLeds();
/// Switch the leds off
/// Writes "Black to LED" or may switch-off the LED hardware, if supported
///
virtual int switchOff();
/// Switch the leds on
/// May switch-on the LED hardware, if supported
///
virtual int switchOn();
/// Set device in error state
///
/// @param errorMsg The error message to be logged
///
virtual void setInError( const QString& errorMsg);
private:
/// Start new refresh cycle
///
void startRefreshTimer();
/// Stop refresh cycle
///
void stopRefreshTimer();
bool _componentRegistered;
bool _enabled;
bool _refresh_enabled;
QString _colorOrder;
/// Last LED values written
std::vector<ColorRgb> _last_ledValues;
};