source/input/device.cpp

   1 #include "device.h"
   2 #include <msp/strings/format.h>
   3
   4 using namespace std;
   5
   6 namespace Msp {
   7 namespace Input {
   8
   9 Device::Device(DeviceType t):
  10         type(t)
  11 { }
  12
  13 Device::~Device()
  14 { }
  15
  16 Device *Device::find_subdevice(const string &n)
  17 {
  18         return (n==name ? this : nullptr);
  19 }
  20
  21 Device *Device::find_subdevice(DeviceType t, unsigned i)
  22 {
  23         return (t==type && i==0 ? this : nullptr);
  24 }
  25
  26 bool Device::get_button_state(unsigned btn) const
  27 {
  28         if(btn>=buttons.size())
  29                 return false;
  30
  31         return buttons[btn];
  32 }
  33
  34 float Device::get_axis_value(unsigned axis) const
  35 {
  36         if(axis>=axes.size())
  37                 return 0;
  38
  39         return axes[axis];
  40 }
  41
  42 string Device::get_button_name(unsigned btn) const
  43 {
  44         return format("Button %d", btn);
  45 }
  46
  47 string Device::get_axis_name(unsigned axis) const
  48 {
  49         return format("Axis %d", axis);
  50 }
  51
  52 void Device::set_button_state(unsigned btn, bool state, bool event)
  53 {
  54         if(btn>=buttons.size())
  55                 buttons.resize(btn+1, false);
  56
  57         if(state!=static_cast<bool>(buttons[btn]))
  58         {
  59                 buttons[btn] = state;
  60
  61                 if(event)
  62                 {
  63                         if(state)
  64                                 signal_button_press.emit(btn);
  65                         else
  66                                 signal_button_release.emit(btn);
  67                 }
  68         }
  69 }
  70
  71 void Device::set_axis_value(unsigned axis, float value, bool event)
  72 {
  73         if(axis>=axes.size())
  74                 axes.resize(axis+1, 0);
  75
  76         if(value!=axes[axis])
  77         {
  78                 float old = axes[axis];
  79                 axes[axis] = value;
  80
  81                 if(event)
  82                         signal_axis_motion.emit(axis, value, value-old);
  83         }
  84 }
  85
  86
  87 void operator>>(const LexicalConverter &conv, DeviceType &type)
  88 {
  89         if(conv.get()=="UNSPECIFIED")
  90                 type = UNSPECIFIED;
  91         else if(conv.get()=="KEYBOARD")
  92                 type = KEYBOARD;
  93         else if(conv.get()=="MOUSE")
  94                 type = MOUSE;
  95         else if(conv.get()=="TOUCH_SURFACE")
  96                 type = TOUCH_SURFACE;
  97         else if(conv.get()=="GAME_CONTROLLER")
  98                 type = GAME_CONTROLLER;
  99         else
 100                 throw lexical_error(format("conversion of '%s' to DeviceType", conv.get()));
 101 }
 102
 103 void operator<<(LexicalConverter &conv, DeviceType type)
 104 {
 105         switch(type)
 106         {
 107         case UNSPECIFIED: conv.result("UNSPECIFIED"); break;
 108         case KEYBOARD: conv.result("KEYBOARD"); break;
 109         case MOUSE: conv.result("MOUSE"); break;
 110         case TOUCH_SURFACE: conv.result("TOUCH_SURFACE"); break;
 111         case GAME_CONTROLLER: conv.result("GAME_CONTROLLER"); break;
 112         default: conv.result(format("DeviceType(%#x)", static_cast<int>(type)));
 113         }
 114 }
 115
 116 } // namespace Input
 117 } // namespace Msp