state-handler: #6 add state controller functions

- HandleState to set an event of the state
- SetState to update current state to new

StateHandler/inc/StateHandler.h

@@ -15,10 +15,10 @@
 #ifndef STATE_HANDLER_H_
 #define STATE_HANDLER_H_
 
-#include "DigitalIoPin.h"
-#include "LiquidCrystal.h"
 #include "Counter.h"
+#include "DigitalIoPin.h"
 #include "Event.h"
+#include "LiquidCrystal.h"
 
 /** Buttons enumeration
  *
@@ -28,7 +28,8 @@
  * of the particular button.
  * */
 
-enum _buttons {
+enum _buttons
+{
   /** Raises the bar up */
   BUTTON_CONTROL_UP,
   /** Raises the bar down */
@@ -42,60 +43,62 @@ enum _buttons {
   BUTTON_CONTROL_TOG_ACTIVE
 };
 
-enum _bars {
+enum _bars
+{
   /** 0-100 % */
   FAN_SPEED,
   /** 0-120 Pa */
   PRESSURE
 };
 
-enum _mode {
+enum _mode
+{
   MANUAL,
   AUTO
 };
 
 class StateHandler;
-typedef void (StateHandler::*state_pointer)(const Event &);
+typedef void (StateHandler::*state_pointer) (const Event &);
 
-
+class StateHandler
-class StateHandler {
+{
 public:
-	StateHandler(LiquidCrystal * lcd);
+  StateHandler (LiquidCrystal *lcd);
-	virtual ~StateHandler();
+  virtual ~StateHandler ();
 
   /** Get currently set pressure
    *
    * @return pressure in range of 0-120
    */
-	unsigned int getSetPressure();
+  unsigned int getSetPressure ();
 
   /** Get currently set FanSpeed
    *
    * @return speed in range of 0-100
    */
-	unsigned int getSetSpeed();
+  unsigned int getSetSpeed ();
 
   /** Display values on LCD depending on current mode
    *
    * @param value1 value to be displayed on LCD line 0
    * @param value2 value to be displayed on LCD line 1
    */
-	void displaySet(unsigned int value1, unsigned int value2);
+  void displaySet (unsigned int value1, unsigned int value2);
 
   /** Handle the given event of the current state
    * @param event event to be handled in the current state
    */
-	void HandleState(const Event &event);
+  void HandleState (const Event &event);
+
 private:
   state_pointer current;
   /** Set a new curremt state
    * @param newstate new state to be set to current
    */
-	void SetState(state_pointer newstate);
+  void SetState (state_pointer newstate);
   bool current_mode;
-	Counter set [2] = {{0, 100}, {0, 120}};
+  Counter set[2] = { { 0, 100 }, { 0, 120 } };
-	LiquidCrystal * _lcd;
+  LiquidCrystal *_lcd;
-
 };
 
 #endif /* STATE_HANDLER_H_ */

StateHandler/src/StateHandler.cpp

@@ -61,3 +61,14 @@ StateHandler::SetState (state_pointer newstate)
   current = newstate;
   (this->*current) (Event (Event::eEnter));
 }
+
+void StateHandler::HandleState(const Event &event){
+	(this->*current)(event);
+}
+
+void StateHandler::SetState(state_pointer newstate){
+	(this->*current)(Event(Event::eExit));
+	current = newstate;
+	(this->*current)(Event(Event::eEnter));
+
+}