source/input/android/mouse.cpp

   1 #include <msp/graphics/window_private.h>
   2 #include "mouse.h"
   3
   4 namespace Msp {
   5 namespace Input {
   6
   7 void Mouse::input_event(const Graphics::Window::Event &event)
   8 {
   9         int type = AInputEvent_getType(event.aevent);
  10         if(type!=AINPUT_EVENT_TYPE_MOTION)
  11                 return;
  12
  13         /* Emulate a mouse with the touch events of a single finger.  If more
  14         fingers appear while the first one is held down, they are ignored, even if
  15         the first finger is released. */
  16
  17         int action = AMotionEvent_getAction(event.aevent);
  18         int action_pointer = (action&AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)>>AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
  19         action &= AMOTION_EVENT_ACTION_MASK;
  20
  21         int pointer_count = AMotionEvent_getPointerCount(event.aevent);
  22         int pointer_zero = -1;
  23         for(int i=0; (i<pointer_count && pointer_zero<0); ++i)
  24                 if(AMotionEvent_getPointerId(event.aevent, i)==0)
  25                         pointer_zero = i;
  26
  27         if(pointer_zero>=0)
  28         {
  29                 float x = AMotionEvent_getX(event.aevent, pointer_zero);
  30                 float y = AMotionEvent_getY(event.aevent, pointer_zero);
  31                 set_axis_value(0, x*2/window.get_width()-1, true);
  32                 set_axis_value(1, 1-y*2/window.get_height(), true);
  33         }
  34
  35         switch(action)
  36         {
  37         case AMOTION_EVENT_ACTION_DOWN:
  38         case AMOTION_EVENT_ACTION_UP:
  39         case AMOTION_EVENT_ACTION_POINTER_DOWN:
  40         case AMOTION_EVENT_ACTION_POINTER_UP:
  41                 if(action_pointer==0)
  42                         set_button_state(1, action==AMOTION_EVENT_ACTION_DOWN, true);
  43                 break;
  44         default:;
  45         }
  46 }
  47
  48 } // namespace Input
  49 } // namespace Msp