Diff: GasChannelDACAndADCPageHandler.h

Revision:

1:a5258871b33d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GasChannelDACAndADCPageHandler.h	Thu Jul 20 08:42:29 2017 +0000
@@ -0,0 +1,65 @@
+#ifndef GASCHANNELDACANDADCPAGEHANDLER_H
+#define GASCHANNELDACANDADCPAGEHANDLER_H
+
+#include "mbed.h"
+#include "DMBoard.h"
+
+#include "USBHostGC.h"
+
+#include "GuiLib.h"
+
+/*
+    This class handles user interaction with the easyGUI "GasChannelDACAndADCPage",
+    as well as storing the values in QSPI memory.
+    
+    Note that this class is a singleton - we do not need or want there to be more than one instance of it
+    (we do not want multiple values for each DAC value, etc, and nor will we show 
+    more than one easyGUI 'GasChannelDACAndADCPage' to the user at the same time).
+*/
+class GasChannelDACAndADCPageHandler {
+public:
+    /**
+    * Static method to create (if necessary) and retrieve the single GasChannelDACAndADCPageHandler instance
+    */
+    static GasChannelDACAndADCPageHandler * GetInstance(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);
+    
+    bool TouchAreaIsOnGasChannelDACAndADCPage(int touchAreaIndex);
+
+    bool DealWithTouch(int touchAreaIndex);
+    
+    void DisplayingEasyGUIPage(void);
+    
+private:
+    static const int minimumDACValue;
+    static const int maximumDACValue;
+
+    static const GuiConst_INTCOLOR inactiveFieldBackgroundColour;
+    static const GuiConst_INTCOLOR activeFieldBackgroundColour;
+
+    // Explicit values here, to ensure that they match the easyGUI variable
+    typedef enum enumChannelSelection { TOTAL_FLOW = 1, BACK_PRESSURE = 2, FUEL = 3, AIR = 4 } ChannelSelection;
+    
+    ChannelSelection channelSelection;
+    
+    USBDeviceConnected* usbDevice;
+    USBHostGC* usbHostGC;
+    
+    static GasChannelDACAndADCPageHandler * theGasChannelDACAndADCPageHandlerInstance;
+    
+    // singleton class -> constructor is private
+    GasChannelDACAndADCPageHandler(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);    
+    ~GasChannelDACAndADCPageHandler();
+
+    void SaveGasChannelSelectionToQSPISettings(void);
+    void ReadGasChannelSelectionFromQSPISettings(void);
+
+    void UpdateEasyGUIPage(void);
+
+    bool GetGasChannelADCValue(int channel, char* buffer);
+
+    bool SetGasChannelDACValue(int channel, char* buffer);
+
+};
+
+#endif // GASCHANNELDACANDADCPAGEHANDLER_H
+