GasCalibrationPageHandler.h

00001 #ifndef GASCALIBRATIONPAGEHANDLER_H
00002 #define GASCALIBRATIONPAGEHANDLER_H
00003 
00004 #include "mbed.h"
00005 #include "DMBoard.h"
00006 
00007 #include "USBHostGC.h"
00008 
00009 #include "GuiLib.h"
00010 
00011 /*
00012     A struct to relate the index of an easyGUI touch area on the 'GasCalibrationPage',
00013     with the easyGUI variable and our own internal variable to which it corresponds
00014 */
00015 typedef struct structGasCalibrationEasyGUITouchAreaAndVariables {
00016     int touchAreaIndex;
00017     GuiConst_TEXT * easyGUIVariablePtr;
00018     unsigned int maxValue;
00019     GuiConst_INTCOLOR * easyGUIBackgroundColorVariablePtr;
00020     char variableName[41];
00021 } GasCalibrationEasyGUITouchAreaAndVariables;
00022 
00023 
00024 /*
00025     This class handles user interaction with the easyGUI "GasCalibrationPage",
00026     as well as storing the values in QSPI memory.
00027     
00028     Note that this class is a singleton - we do not need or want there to be more than one instance of it
00029     (we do not want multiple values for the carrier gas selection, etc, and nor will we show 
00030     more than one easyGUI 'GasCalibrationPage' to the user at the same time).
00031 */
00032 class GasCalibrationPageHandler {
00033 public:
00034     /**
00035     * Static method to create (if necessary) and retrieve the single GasCalibrationPageHandler instance
00036     */
00037     static GasCalibrationPageHandler * GetInstance(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);
00038     
00039     bool TouchAreaIsOnCalibrationPage(int touchAreaIndex);
00040 
00041     bool DealWithTouch(int touchAreaIndex);
00042     
00043     void DisplayingEasyGUIPage(bool updateEasyGUIVariables);
00044     
00045 private:
00046     enum {CARRIER_GAS_HELIUM = 0, CARRIER_GAS_HYDROGEN = 1, CARRIER_GAS_NITROGEN = 2};
00047     
00048     static GasCalibrationPageHandler * theGasCalibrationPageHandlerInstance;
00049     
00050     static const GuiConst_INTCOLOR inactiveFieldBackgroundColour;
00051     static const GuiConst_INTCOLOR activeFieldBackgroundColour;
00052     
00053     USBDeviceConnected* usbDevice;
00054     USBHostGC* usbHostGC;
00055     
00056     int indexOfValueCurrentlyBeingEdited;
00057     
00058     // singleton class -> constructor is private
00059     GasCalibrationPageHandler(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);    
00060     ~GasCalibrationPageHandler();
00061 
00062     void SaveCarrierGasSelectionToQSPISettings(void);
00063     void ReadCarrierGasSelectionFromQSPISettings(void);
00064 
00065     void UpdateEasyGUIPage(void);
00066 
00067     void GetCurrentCalibrationFromGC(void);
00068     void SetCurrentCalibrationInGC(void);
00069     
00070     bool GetCalibrationDACAndFlowValuesFromGC(int carrierGasSelection, int valueIndex, char *bufferForDACValue, char *bufferForFlowValue);
00071     bool SetCalibrationDACAndFlowValuesInGC(int carrierGasSelection, int valueIndex, char *bufferForDACValue, char *bufferForFlowValue);
00072     
00073     bool ConstructGasCalibrationGCCommand(bool wantSetCommand, int carrierGasSelection, int valueIndex, bool wantDACCommand, char *commandBuffer);
00074     void CopyBufferDigitsToCommand(char *commandBuffer, char *digitsBuffer);
00075     
00076     enum { COUNT_OF_VARIABLES_FOR_TOUCH_AREAS = 12 };
00077     GasCalibrationEasyGUITouchAreaAndVariables variablesForTouchArea[COUNT_OF_VARIABLES_FOR_TOUCH_AREAS];
00078     
00079     void SetAllFieldBackgroundColoursToInactive(void);
00080 
00081     int GetIndexOfValueToEditForTouchArea(int touchAreaIndex);
00082 
00083     void CopyCommandResponseToBufferWithoutLeadingZeroes(char *commandResponse, char *buffer);
00084 };
00085 
00086 #endif // GASCALIBRATIONPAGEHANDLER_H
00087