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72 lines
1.6 KiB
C++
Executable File
72 lines
1.6 KiB
C++
Executable File
#pragma once
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// STL/Qt includes
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#include <fstream>
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#include <QObject>
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#include <QTcpSocket>
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// Leddevice includes
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#include <leddevice/LedDevice.h>
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///
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/// Implementation of the LedDevice interface for sending to
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/// fadecandy/opc-server via network by using the 'open pixel control' protocol.
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///
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class LedDeviceFadeCandy : public QObject, public LedDevice
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{
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Q_OBJECT
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public:
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///
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/// Constructs the LedDevice for fadecandy/opc server
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///
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/// @param host The ip address/host name of fadecandy/opc server
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/// @param port The port to use (fadecandy default is 7890)
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///
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LedDeviceFadeCandy(const std::string& host, const uint16_t port, const unsigned channel);
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///
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/// Destructor of the LedDevice; closes the tcp client
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///
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virtual ~LedDeviceFadeCandy();
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///
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/// Writes the led color values to the led-device
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///
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/// @param ledValues The color-value per led
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/// @return Zero on succes else negative
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///
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virtual int write(const std::vector<ColorRgb> & ledValues);
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/// Switch the leds off
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virtual int switchOff();
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private:
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QTcpSocket _client;
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const std::string _host;
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const uint16_t _port;
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const unsigned _channel;
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QByteArray _opc_data;
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/// try to establish connection to opc server, if not connected yet
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///
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/// @return true if connection is established
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///
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bool tryConnect();
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/// return the conenction state
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///
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/// @return True if connection established
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///
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bool isConnected();
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/// transfer current opc_data buffer to opc server
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///
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/// @return amount of transfered bytes. -1 error while transfering, -2 error while connecting
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///
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int transferData();
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};
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