Diff: GasBackPressureDACPageHandler.h

Revision:

1:a5258871b33d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GasBackPressureDACPageHandler.h	Thu Jul 20 08:42:29 2017 +0000
@@ -0,0 +1,66 @@
+#ifndef GASBACKPRESSUREDACPAGEHANDLER_H
+#define GASBACKPRESSUREDACPAGEHANDLER_H
+
+#include "mbed.h"
+#include "DMBoard.h"
+
+#include "USBHostGC.h"
+
+#include "GuiLib.h"
+
+/*
+    This class handles user interaction with the easyGUI "GasBackPressureDACPage",
+    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 the gain and offset, etc, and nor will we show 
+    more than one easyGUI 'GasBackPressureDACPage' to the user at the same time).
+*/
+class GasBackPressureDACPageHandler {
+public:
+    /**
+    * Static method to create (if necessary) and retrieve the single GasBackPressureDACPageHandler instance
+    */
+    static GasBackPressureDACPageHandler * GetInstance(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);
+    
+    bool TouchAreaIsOnGasBackPressureDACPage(int touchAreaIndex);
+
+    bool DealWithTouch(int touchAreaIndex);
+
+    void DisplayingEasyGUIPage(bool updateEasyGUIVariables);    
+
+private:
+
+    typedef enum enumActiveField { NONE, GAIN, OFFSET } ActiveField;
+    
+    static const int minimumGainAndOffsetValue;
+    static const int maximumGainAndOffsetValue;
+    
+    static const GuiConst_INTCOLOR inactiveFieldBackgroundColour;
+    static const GuiConst_INTCOLOR activeFieldBackgroundColour;
+    
+    ActiveField currentlyActiveField;
+    
+    USBDeviceConnected* usbDevice;
+    USBHostGC* usbHostGC;
+    
+    static GasBackPressureDACPageHandler * theGasBackPressureDACPageHandlerInstance;
+    
+    // singleton class -> constructor is private
+    GasBackPressureDACPageHandler(USBDeviceConnected* newUsbDevice, USBHostGC* newUsbHostGC);    
+    ~GasBackPressureDACPageHandler();
+
+    void UpdateEasyGUIPage(void);
+
+    bool GetCurrentGasBackPressureDACValuesFromGC(void);
+    
+    bool SetCurrentGasBackPressureDACValuesInGC(void);
+    
+    void SetAllEditableFieldsToInactive(void);
+
+    void SelectActiveField(ActiveField thisField, ActiveField otherField, GuiConst_INTCOLOR *thisFieldBGColour, GuiConst_INTCOLOR* otherFieldBGColour);
+
+    void ConstructSetBackPressureCommand(char *command, char gainOrOffsetCharacter, GuiConst_TEXT* easyGUIVariable);
+};
+
+#endif // GASBACKPRESSUREDACPAGEHANDLER_H