Android support

[libs/gui.git] / source / input / android / mouse.cpp

diff --git a/source/input/android/mouse.cpp b/source/input/android/mouse.cpp
new file mode 100644 (file)
index 0000000..b16b6be
--- /dev/null
+++ b/source/input/android/mouse.cpp
@@ -0,0 +1,49 @@
+#include <msp/graphics/window_private.h>
+#include "mouse.h"
+
+namespace Msp {
+namespace Input {
+
+void Mouse::input_event(const Graphics::Window::Event &event)
+{
+       int type = AInputEvent_getType(event.aevent);
+       if(type!=AINPUT_EVENT_TYPE_MOTION)
+               return;
+
+       /* Emulate a mouse with the touch events of a single finger.  If more
+       fingers appear while the first one is held down, they are ignored, even if
+       the first finger is released. */
+
+       int action = AMotionEvent_getAction(event.aevent);
+       int action_pointer = (action&AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)>>AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+       action &= AMOTION_EVENT_ACTION_MASK;
+
+       int pointer_count = AMotionEvent_getPointerCount(event.aevent);
+       int pointer_zero = -1;
+       for(int i=0; (i<pointer_count && pointer_zero<0); ++i)
+               if(AMotionEvent_getPointerId(event.aevent, i)==0)
+                       pointer_zero = i;
+
+       if(pointer_zero>=0)
+       {
+               float x = AMotionEvent_getX(event.aevent, pointer_zero);
+               float y = AMotionEvent_getY(event.aevent, pointer_zero);
+               set_axis_value(0, x*2/window.get_width()-1, true);
+               set_axis_value(1, 1-y*2/window.get_height(), true);
+       }
+
+       switch(action)
+       {
+       case AMOTION_EVENT_ACTION_DOWN:
+       case AMOTION_EVENT_ACTION_UP:
+       case AMOTION_EVENT_ACTION_POINTER_DOWN:
+       case AMOTION_EVENT_ACTION_POINTER_UP:
+               if(action_pointer==0)
+                       set_button_state(1, action==AMOTION_EVENT_ACTION_DOWN, true);
+               break;
+       default:;
+       }
+}
+
+} // namespace Input
+} // namespace Msp