source/input/mouse.cpp

   1 #ifdef WIN32
   2 #include <windowsx.h>
   3 #endif
   4 #include <msp/graphics/window.h>
   5 #include <msp/graphics/window_priv.h>
   6 #include "mouse.h"
   7
   8 namespace Msp {
   9 namespace Input {
  10
  11 Mouse::Mouse(Graphics::Window &w):
  12         window(w)
  13 {
  14         name = "Mouse";
  15
  16         buttons.resize(3);
  17         axes.resize(2);
  18
  19         window.signal_input_event.connect(sigc::mem_fun(this, &Mouse::input_event));
  20 }
  21
  22 std::string Mouse::get_button_name(unsigned btn) const
  23 {
  24         switch(btn)
  25         {
  26         case 1:
  27                 return "Left";
  28         case 2:
  29                 return "Middle";
  30         case 3:
  31                 return "Right";
  32         case 4:
  33                 return "Wheel Up";
  34         case 5:
  35                 return "Wheel Down";
  36         default:
  37                 return Device::get_button_name(btn);
  38         }
  39 }
  40
  41 std::string Mouse::get_axis_name(unsigned axis) const
  42 {
  43         switch(axis)
  44         {
  45         case 0:
  46                 return "X axis";
  47         case 1:
  48                 return "Y axis";
  49         default:
  50                 return Device::get_axis_name(axis);
  51         };
  52 }
  53
  54 void Mouse::input_event(const Graphics::Window::Event &event)
  55 {
  56 #ifdef WIN32
  57         switch(event.msg)
  58         {
  59         case WM_LBUTTONDOWN:
  60         case WM_LBUTTONUP:
  61                 set_button_state(1, event.msg==WM_LBUTTONDOWN, true);
  62                 break;
  63         case WM_MBUTTONDOWN:
  64         case WM_MBUTTONUP:
  65                 set_button_state(2, event.msg==WM_MBUTTONDOWN, true);
  66                 break;
  67         case WM_RBUTTONDOWN:
  68         case WM_RBUTTONUP:
  69                 set_button_state(3, event.msg==WM_RBUTTONDOWN, true);
  70                 break;
  71         case WM_MOUSEWHEEL:
  72                 {
  73                         unsigned btn = (HIWORD(event.wparam)&0x8000) ? 5 : 4;
  74                         set_button_state(btn, true, true);
  75                         set_button_state(btn, false, true);
  76                 }
  77                 break;
  78         case WM_MOUSEMOVE:
  79                 set_axis_value(0, GET_X_LPARAM(event.lparam)*2.0/window.get_width()-1.0, true);
  80                 set_axis_value(1, 1.0-GET_Y_LPARAM(event.lparam)*2.0/window.get_height(), true);
  81                 break;
  82         }
  83 #else
  84         switch(event.xevent.type)
  85         {
  86         case ButtonPress:
  87         case ButtonRelease:
  88                 set_button_state(event.xevent.xbutton.button, event.xevent.type==ButtonPress, true);
  89                 break;
  90         case MotionNotify:
  91                 set_axis_value(0, event.xevent.xmotion.x*2.0/window.get_width()-1.0, true);
  92                 set_axis_value(1, 1.0-event.xevent.xmotion.y*2.0/window.get_height(), true);
  93                 break;
  94         }
  95 #endif
  96 }
  97
  98 } // namespace Input
  99 } // namespace Msp