- //
- // Implementation of FGSubsystem.
- //
- virtual void init ();
- virtual void bind ();
- virtual void unbind ();
- virtual void update ();
-
-
- /**
- * Handle a single keystroke.
- *
- * <p>Note: for special keys, the integer key code will be the Glut
- * code + 256.</p>
- *
- * @param k The integer key code, as returned by glut.
- * @param modifiers Modifier keys pressed (bitfield).
- * @param x The mouse x position at the time of keypress.
- * @param y The mouse y position at the time of keypress.
- * @see #FG_MOD_SHIFT
- * @see #FG_MOD_CTRL
- * @see #FG_MOD_ALT
- */
- virtual void doKey (int k, int modifiers, int x, int y);
-
-
-private:
- // Constants
- enum
- {
- MAX_KEYS = 1024,
-
- #ifdef WIN32
- MAX_JOYSTICKS = 2,
- #else
- MAX_JOYSTICKS = 10,
- #endif
- MAX_AXES = _JS_MAX_AXES,
- MAX_BUTTONS = 32
- };
-
-
- typedef vector<FGBinding *> binding_list_t;
-
- /**
- * Settings for a key or button.
- */
- struct button {
- button ();
- virtual ~button ();
- bool is_repeatable;
- int last_state;
- binding_list_t bindings[FG_MOD_MAX];
- };
-
-
- /**
- * Settings for a single joystick axis.
- */
- struct axis {
- axis ();
- virtual ~axis ();
- float last_value;
- float tolerance;
- binding_list_t bindings[FG_MOD_MAX];
- float low_threshold;
- float high_threshold;
- struct button low;
- struct button high;
- };
-
-
- /**
- * Settings for a joystick.
- */
- struct joystick {
- joystick ();
- virtual ~joystick ();
- int jsnum;
- jsJoystick * js;
- int naxes;
- int nbuttons;
- axis * axes;
- button * buttons;
- };
-
-
- /**
- * Initialize key bindings.
- */
- void _init_keyboard ();
-
-
- /**
- * Initialize joystick bindings.
- */
- void _init_joystick ();
-
-
- /**
- * Initialize a single button.
- */
- inline void _init_button (const SGPropertyNode * node,
- button &b,
- const string name);
-
-
- /**
- * Update the keyboard.
- */
- void _update_keyboard ();
-
-
- /**
- * Update the joystick.
- */
- void _update_joystick ();
-
-
- /**
- * Update a single button.
- */
- inline void _update_button (button &b, int modifiers, bool pressed);
-
-
- /**
- * Read bindings and modifiers.
- */
- void _read_bindings (const SGPropertyNode * node,
- binding_list_t * binding_list,
- int modifiers);
-
- /**
- * Look up the bindings for a key code.
- */
- const vector<FGBinding *> &_find_key_bindings (unsigned int k,
- int modifiers);
-
- button _key_bindings[MAX_KEYS];
- joystick _joystick_bindings[MAX_JOYSTICKS];
-