Added initial interfaces and some sensors implementing them

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/bmpx8x/bmpx8x.cxx

@@ -99,7 +99,7 @@ void BMPX8X::writeReg(uint8_t reg, uint8_t val)
                                  + ": bmpx8x_write_reg() failed");
 }
 
-int BMPX8X::getPressure()
+float BMPX8X::getPressure()
 {
     return bmpx8x_get_pressure(m_bmpx8x);
 }

src/bmpx8x/bmpx8x.hpp

@@ -32,8 +32,7 @@
 
 #include "bmpx8x.h"
 
-#include "interfaces/iPressureSensor.hpp"
-#include "interfaces/iTemperatureSensor.hpp"
+#include <interfaces/iPressure.hpp>
 
 namespace upm {
 
@@ -68,7 +67,7 @@ namespace upm {
      * @snippet bmpx8x.cxx Interesting
      */
 
-    class BMPX8X : public IPressureSensor, public ITemperatureSensor {
+    class BMPX8X : virtual public iPressure {
     public:
         /**
          * Instantiates a BMPX8X object
@@ -132,7 +131,7 @@ namespace upm {
          *
          * @returns The pressure in Pascals.
          */
-        int getPressure();
+        virtual float getPressure();
 
         /**
          * Returns the calculated temperature in Celsius.  update()

src/bmpx8x/bmpx8x.i

@@ -2,19 +2,12 @@
 
 /* BEGIN Java syntax  ------------------------------------------------------- */
 #ifdef SWIGJAVA
-%import "../interfaces/javaupm_iPressureSensor.i"
-%typemap(javaimports) SWIGTYPE %{import upm_interfaces.*;%}
-%import "../interfaces/javaupm_iTemperatureSensor.i"
-
 JAVA_JNI_LOADLIBRARY(javaupm_bmpx8x)
 #endif
 /* END Java syntax */
 
 /* BEGIN Python syntax  ----------------------------------------------------- */
 #ifdef SWIGPYTHON
-%include "iModuleStatus.hpp"
-%include "iTemperatureSensor.hpp"
-%include "iPressureSensor.hpp"
 #endif
 /* END Python syntax */