touch screen handler for the microchip AR1020

Revision:
4:510ea5b28a05
Parent:
0:cf4dd04052e3
diff -r b7eb3b3fe79f -r 510ea5b28a05 touchpanel.h
--- a/touchpanel.h	Tue Feb 22 22:54:25 2011 +0000
+++ b/touchpanel.h	Thu Feb 24 14:00:17 2011 +0000
@@ -29,21 +29,69 @@
 class TouchPanel
  {
     public:
+        /**
+            initialize the controller
+        */
         virtual void init()=0;
+        
+        /**
+            read X coordinate (from last update)
+            @returns last known X coordinate
+        */
         virtual int x()=0;
+        /**
+            read Y coordinate (from last update)
+            @returns last known Y coordinate
+        */
         virtual int y()=0;
+        
+        /**
+            @return 0 if pen is up, >0 if pen is down (maybe different due to touch pressure, if supported)
+        */
         virtual int pen()=0;
+        
+        /**
+            read coordinates on request
+        */
         virtual void read()=0;
         
         class T;
+        
+        /**
+            attach listener called on 'pen-down'
+            @params item the callback object
+            @params method the callback method
+        */
         template<class T> 
         void attachPenDown(T* item, uint32_t (T::*method)(uint32_t)) { _callbackPD.attach(item, method); }   
+        /**
+            attach listener called on 'pen-down'
+            @params function the callback function
+        */
         void attachPenDown(uint32_t (*function)(uint32_t)) { _callbackPD.attach(function); }   
+        /**
+            attach listener called on 'pen-move'
+            @params item the callback object
+            @params method the callback method
+        */
         template<class T> 
         void attachPenMove(T* item, uint32_t (T::*method)(uint32_t)) { _callbackPM.attach(item, method); }   
+        /**
+            attach listener called on 'pen-move'
+            @params function the callback function
+        */
         void attachPenMove(uint32_t (*function)(uint32_t)) { _callbackPM.attach(function); }   
+        /**
+            attach listener called on 'pen-up'
+            @params item the callback object
+            @params method the callback method
+        */
         template<class T> 
         void attachPenUp(T* item, uint32_t (T::*method)(uint32_t)) { _callbackPU.attach(item, method); }   
+        /**
+            attach listener called on 'pen-up'
+            @params function the callback function
+        */
         void attachPenUp(uint32_t (*function)(uint32_t)) { _callbackPU.attach(function); }   
         
     protected: