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/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef LIBS_INPUT_SDL_VCONTROL_H_
#define LIBS_INPUT_SDL_VCONTROL_H_
#include "port.h"
#include SDL_INCLUDE(SDL.h)
#if SDL_MAJOR_VERSION == 1
typedef SDLKey sdl_key_t;
#else
typedef SDL_Keycode sdl_key_t;
#endif
/* Initialization routines */
void VControl_Init (void);
void VControl_Uninit (void);
/* Structures for representing actual VControl Inputs. Returned by
iterators and used to construct bindings. */
typedef enum {
VCONTROL_NONE,
VCONTROL_KEY,
VCONTROL_JOYAXIS,
VCONTROL_JOYBUTTON,
VCONTROL_JOYHAT,
NUM_VCONTROL_GESTURES
} VCONTROL_GESTURE_TYPE;
typedef struct {
VCONTROL_GESTURE_TYPE type;
union {
sdl_key_t key;
struct { int port, index, polarity; } axis;
struct { int port, index; } button;
struct { int port, index; Uint8 dir; } hat;
} gesture;
} VCONTROL_GESTURE;
/* Control of bindings */
int VControl_AddGestureBinding (VCONTROL_GESTURE *g, int *target);
void VControl_RemoveGestureBinding (VCONTROL_GESTURE *g, int *target);
int VControl_AddKeyBinding (sdl_key_t symbol, int *target);
void VControl_RemoveKeyBinding (sdl_key_t symbol, int *target);
int VControl_AddJoyAxisBinding (int port, int axis, int polarity, int *target);
void VControl_RemoveJoyAxisBinding (int port, int axis, int polarity, int *target);
int VControl_SetJoyThreshold (int port, int threshold);
int VControl_AddJoyButtonBinding (int port, int button, int *target);
void VControl_RemoveJoyButtonBinding (int port, int button, int *target);
int VControl_AddJoyHatBinding (int port, int which, Uint8 dir, int *target);
void VControl_RemoveJoyHatBinding (int port, int which, Uint8 dir, int *target);
void VControl_RemoveAllBindings (void);
/* Signal to VControl that a frame is about to begin. */
void VControl_BeginFrame (void);
/* The listener. Routines besides HandleEvent may be used to 'fake' inputs without
* fabricating an SDL_Event.
*/
void VControl_HandleEvent (const SDL_Event *e);
void VControl_ProcessKeyDown (sdl_key_t symbol);
void VControl_ProcessKeyUp (sdl_key_t symbol);
void VControl_ProcessJoyButtonDown (int port, int button);
void VControl_ProcessJoyButtonUp (int port, int button);
void VControl_ProcessJoyAxis (int port, int axis, int value);
void VControl_ProcessJoyHat (int port, int which, Uint8 value);
/* Force the input into the blank state. For preventing "sticky" keys. */
void VControl_ResetInput (void);
/* Translate between gestures and string representations thereof. */
void VControl_ParseGesture (VCONTROL_GESTURE *g, const char *spec);
int VControl_DumpGesture (char *buf, int n, VCONTROL_GESTURE *g);
/* Tracking the "last interesting gesture." Used to poll to find new
control keys. */
void VControl_ClearGesture (void);
int VControl_GetLastGesture (VCONTROL_GESTURE *g);
/* Constants for handling the "Start bit." If a gesture is made, and
* then ends, within a single frame, it will still, for one frame,
* have a nonzero value. This is because Bit 16 will be on for the
* first frame a gesture is struck. This bit is cleared when
* VControl_BeginFrame() is called. These constants are used to mask
* out results if necessary. */
#define VCONTROL_STARTBIT 0x10000
#define VCONTROL_MASK 0x0FFFF
#endif
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