janwas
1c1200a049
- add translators from errno and GetLastError to LibError - clarified return values of callbacks (they must return INFO_CB_CONTINUE to continue) - this exposed a few bugs in error handling chains (returning incorrect values); also reduced say-nothing instances of return -1. - move CHECK_ERR etc. macros to lib_error This was SVN commit r3229.
64 lines
1.8 KiB
C
Executable File
64 lines
1.8 KiB
C
Executable File
// input layer (dispatch events to multiple handlers; record/playback events)
|
|
//
|
|
// Copyright (c) 2002 Jan Wassenberg
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but
|
|
// WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// General Public License for more details.
|
|
//
|
|
// Contact info:
|
|
// Jan.Wassenberg@stud.uni-karlsruhe.de
|
|
// http://www.stud.uni-karlsruhe.de/~urkt/
|
|
|
|
#ifndef INPUT_H__
|
|
#define INPUT_H__
|
|
|
|
// note: cannot forward-declare SDL_Event since it is a nameless union.
|
|
#include "sdl.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
// input handler return values.
|
|
enum InReaction
|
|
{
|
|
// (the handlers' return values are checked and these
|
|
// 'strange' values might bring errors to light)
|
|
|
|
// pass the event to the next handler in the chain
|
|
IN_PASS = 4,
|
|
|
|
// we've handled it; no other handlers will receive this event.
|
|
IN_HANDLED = 2
|
|
};
|
|
|
|
typedef InReaction (*InHandler)(const SDL_Event*);
|
|
|
|
// register an input handler, which will receive all subsequent events first.
|
|
// events are passed to other handlers if handler returns IN_PASS.
|
|
extern void in_add_handler(InHandler handler);
|
|
|
|
// send event to each handler (newest first) until one returns true
|
|
extern void in_dispatch_event(const SDL_Event* event);
|
|
|
|
extern void in_dispatch_recorded_events();
|
|
|
|
extern LibError in_record(const char* fn);
|
|
extern LibError in_playback(const char* fn);
|
|
extern void in_stop(void);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // #ifndef INPUT_H__
|