1 // input.hxx -- handle user input from various sources.
3 // Written by David Megginson, started May 2001.
5 // Copyright (C) 2001 David Megginson, david@megginson.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 # error This library requires C++
33 #include <simgear/compiler.h>
35 #include <simgear/misc/commands.hxx>
36 #include <simgear/misc/props.hxx>
38 #include <Main/fgfs.hxx>
39 #include <Main/globals.hxx>
48 * An input binding of some sort.
50 * <p>This class represents a binding that can be assigned to a
51 * keyboard key, a joystick button or axis, or even a panel
54 class FGBinding : public FGConditional
59 * Default constructor.
65 * Convenience constructor.
67 * @param node The binding will be built from this node.
69 FGBinding (const SGPropertyNode * node);
75 virtual ~FGBinding ();
79 * Get the command name.
81 * @return The string name of the command for this binding.
83 virtual const string &getCommandName () const { return _command_name; }
87 * Get the command itself.
89 * @return The command associated with this binding, or 0 if none
92 virtual SGCommandMgr::command_t getCommand () const { return _command; }
96 * Get the argument that will be passed to the command.
98 * @return A property node that will be passed to the command as its
99 * argument, or 0 if none was supplied.
101 virtual const SGPropertyNode * getArg () { return _arg; }
105 * Read a binding from a property node.
107 * @param node The property node containing the binding.
109 virtual void read (const SGPropertyNode * node);
115 virtual void fire () const;
119 * Fire a binding with a setting (i.e. joystick axis).
121 * A double 'setting' property will be added to the arguments.
123 * @param setting The input setting, usually between -1.0 and 1.0.
125 virtual void fire (double setting) const;
129 string _command_name;
130 SGCommandMgr::command_t _command;
131 mutable SGPropertyNode * _arg;
132 mutable SGPropertyNode * _setting;
133 mutable SGCommandState * _command_state;
138 * Generic input module.
140 * <p>This module is designed to handle input from multiple sources --
141 * keyboard, joystick, mouse, or even panel switches -- in a consistent
142 * way, and to allow users to rebind any of the actions at runtime.</p>
144 class FGInput : public FGSubsystem
150 FG_MOD_UP = 1, // key- or button-up
154 FG_MOD_MAX = 16 // enough to handle all combinations
161 // Implementation of FGSubsystem.
163 virtual void init ();
164 virtual void bind ();
165 virtual void unbind ();
166 virtual void update ();
170 * Handle a single keystroke.
172 * <p>Note: for special keys, the integer key code will be the Glut
175 * @param k The integer key code, as returned by glut.
176 * @param modifiers Modifier keys pressed (bitfield).
177 * @param x The mouse x position at the time of keypress.
178 * @param y The mouse y position at the time of keypress.
183 virtual void doKey (int k, int modifiers, int x, int y);
198 MAX_AXES = _JS_MAX_AXES,
203 typedef vector<FGBinding *> binding_list_t;
206 * Settings for a key or button.
210 : is_repeatable(false),
214 for (int i = 0; i < FG_MOD_MAX; i++)
215 for (int j = 0; i < bindings[i].size(); j++)
216 delete bindings[i][j];
220 binding_list_t bindings[FG_MOD_MAX];
225 * Settings for a single joystick axis.
229 : last_value(9999999),
235 for (int i = 0; i < FG_MOD_MAX; i++)
236 for (int j = 0; i < bindings[i].size(); j++)
237 delete bindings[i][j];
241 binding_list_t bindings[FG_MOD_MAX];
243 float high_threshold;
250 * Settings for a joystick.
253 virtual ~joystick () {
267 * Initialize key bindings.
269 void _init_keyboard ();
273 * Initialize joystick bindings.
275 void _init_joystick ();
279 * Initialize a single button.
281 inline void _init_button (const SGPropertyNode * node,
287 * Update the keyboard.
289 void _update_keyboard ();
293 * Update the joystick.
295 void _update_joystick ();
299 * Update a single button.
301 inline void _update_button (button &b, int modifiers, bool pressed);
305 * Read bindings and modifiers.
307 void _read_bindings (const SGPropertyNode * node,
308 binding_list_t * binding_list,
312 * Look up the bindings for a key code.
314 const vector<FGBinding *> &_find_key_bindings (unsigned int k,
317 button _key_bindings[MAX_KEYS];
318 joystick _joystick_bindings[MAX_JOYSTICKS];
322 // Handle keyboard events
323 void GLUTkey(unsigned char k, int x, int y);
324 void GLUTkeyup(unsigned char k, int x, int y);
325 void GLUTspecialkey(int k, int x, int y);
326 void GLUTspecialkeyup(int k, int x, int y);
328 extern FGInput current_input;
330 #endif // _CONTROLS_HXX