source/input/mouse.cpp

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