quakeforge/libs/input/in_event.c

136 lines
2.8 KiB
C
Raw Normal View History

2001-08-09 23:16:54 +00:00
/*
in_event.c
input event handling
Copyright (C) 2001 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2001/8/9
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
2001-08-27 01:00:03 +00:00
#include <stdlib.h>
#include "QF/darray.h"
#include "QF/input/event.h"
2001-08-09 23:16:54 +00:00
#define IE_EVENT(event) #event,
const char *ie_event_names[] = {
#include "QF/input/event_names.h"
0
};
typedef struct {
ie_handler_t *handler;
void *data;
} ie_reghandler_t;
2001-08-09 23:16:54 +00:00
static struct DARRAY_TYPE (ie_reghandler_t) ie_handlers = { .grow = 8, };
static unsigned focus;
2001-08-09 23:16:54 +00:00
int
IE_Send_Event (const IE_event_t *event)
{
if ((1 << event->type) & IE_broadcast_events) {
for (size_t i = 0; i < ie_handlers.size; i++) {
ie_reghandler_t *reg = &ie_handlers.a[i];
if (reg->handler) {
reg->handler (event, reg->data);
}
}
return 1;
}
if (focus < ie_handlers.size && ie_handlers.a[focus].handler) {
ie_reghandler_t *reg = &ie_handlers.a[focus];
return reg->handler (event, reg->data);
}
2001-08-09 23:16:54 +00:00
return 0;
}
int
IE_Add_Handler (ie_handler_t *event_handler, void *data)
2001-08-09 23:16:54 +00:00
{
size_t handle;
ie_reghandler_t reg = { event_handler, data };
for (handle = 0; handle < ie_handlers.size; handle++) {
if (!ie_handlers.a[handle].handler) {
ie_handlers.a[handle] = reg;
return handle;
2001-08-09 23:16:54 +00:00
}
}
DARRAY_APPEND (&ie_handlers, reg);
return handle;
2001-08-09 23:16:54 +00:00
}
void
IE_Remove_Handler (int handle)
{
if ((size_t) (ssize_t) handle < ie_handlers.size) {
ie_handlers.a[handle].handler = 0;
}
2001-08-09 23:16:54 +00:00
}
void
IE_Set_Focus (int handle)
{
unsigned h = handle;
if (h < ie_handlers.size && ie_handlers.a[handle].handler && focus != h) {
IE_event_t event;
event.type = ie_lose_focus;
IE_Send_Event (&event);
focus = handle;
event.type = ie_gain_focus;
IE_Send_Event (&event);
}
2001-08-09 23:16:54 +00:00
}
int
IE_Get_Focus (void)
{
return focus;
}
static void
in_event_shutdown (void *data)
{
DARRAY_CLEAR (&ie_handlers);
}
static void __attribute__((constructor))
in_event_init (void)
{
//FIXME see in_evdev
Sys_RegisterShutdown (in_event_shutdown, 0);
}