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