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extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401
This commit is contained in:
Sam Lantinga 2001-04-26 16:45:43 +00:00
commit 2f110628a7
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6
src/events/.cvsignore Normal file
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Makefile.in
Makefile
.libs
*.o
*.lo
*.la

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src/events/Makefile.am Normal file
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## Makefile.am for the SDL event handling library
noinst_LTLIBRARIES = libevents.la
# Include the architecture-independent sources
COMMON_SRCS = \
SDL_events.c \
SDL_events_c.h \
SDL_expose.c \
SDL_sysevents.h \
SDL_quit.c \
SDL_active.c \
SDL_keyboard.c \
SDL_mouse.c \
SDL_resize.c
libevents_la_SOURCES = $(COMMON_SRCS)

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* Application focus/iconification handling code for SDL */
#include <stdio.h>
#include <string.h>
#include "SDL_events.h"
#include "SDL_events_c.h"
/* These are static for our active event handling code */
static Uint8 SDL_appstate = 0;
/* Public functions */
int SDL_AppActiveInit(void)
{
/* Start completely active */
SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS);
/* That's it! */
return(0);
}
Uint8 SDL_GetAppState(void)
{
return(SDL_appstate);
}
/* This is global for SDL_eventloop.c */
int SDL_PrivateAppActive(Uint8 gain, Uint8 state)
{
int posted;
Uint8 new_state;
/* Modify the current state with the given mask */
if ( gain ) {
new_state = (SDL_appstate | state);
} else {
new_state = (SDL_appstate & ~state);
}
/* Drop events that don't change state */
if ( new_state == SDL_appstate ) {
return(0);
}
/* Update internal active state */
SDL_appstate = new_state;
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) {
SDL_Event event;
memset(&event, 0, sizeof(event));
event.type = SDL_ACTIVEEVENT;
event.active.gain = gain;
event.active.state = state;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
/* If we lost keyboard focus, post key-up events */
if ( (state & SDL_APPINPUTFOCUS) && !gain ) {
SDL_ResetKeyboard();
}
return(posted);
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* General event handling code for SDL */
#include <stdio.h>
#include <string.h>
#include "SDL.h"
#include "SDL_thread.h"
#include "SDL_mutex.h"
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_timer_c.h"
#ifndef DISABLE_JOYSTICK
#include "SDL_joystick_c.h"
#endif
#ifndef ENABLE_X11
#define DISABLE_X11
#endif
#include "SDL_syswm.h"
#include "SDL_sysevents.h"
/* Public data -- the event filter */
SDL_EventFilter SDL_EventOK = NULL;
Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];
static Uint32 SDL_eventstate = 0;
/* Private data -- event queue */
#define MAXEVENTS 128
static struct {
SDL_mutex *lock;
int active;
int head;
int tail;
SDL_Event event[MAXEVENTS];
int wmmsg_next;
struct SDL_SysWMmsg wmmsg[MAXEVENTS];
} SDL_EventQ;
/* Private data -- event locking structure */
static struct {
SDL_mutex *lock;
int safe;
} SDL_EventLock;
/* Thread functions */
static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */
static Uint32 event_thread; /* The event thread id */
void SDL_Lock_EventThread(void)
{
if ( SDL_EventThread && (SDL_ThreadID() != event_thread) ) {
/* Grab lock and spin until we're sure event thread stopped */
SDL_mutexP(SDL_EventLock.lock);
while ( ! SDL_EventLock.safe ) {
SDL_Delay(1);
}
}
}
void SDL_Unlock_EventThread(void)
{
if ( SDL_EventThread && (SDL_ThreadID() != event_thread) ) {
SDL_mutexV(SDL_EventLock.lock);
}
}
static int SDL_GobbleEvents(void *unused)
{
SDL_SetTimerThreaded(2);
event_thread = SDL_ThreadID();
while ( SDL_EventQ.active ) {
SDL_VideoDevice *video = current_video;
SDL_VideoDevice *this = current_video;
/* Get events from the video subsystem */
if ( video ) {
video->PumpEvents(this);
}
/* Queue pending key-repeat events */
SDL_CheckKeyRepeat();
#ifndef DISABLE_JOYSTICK
/* Check for joystick state change */
if ( SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK) ) {
SDL_JoystickUpdate();
}
#endif
/* Give up the CPU for the rest of our timeslice */
SDL_EventLock.safe = 1;
if( SDL_timer_running ) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(1);
/* Check for event locking.
On the P of the lock mutex, if the lock is held, this thread
will wait until the lock is released before continuing. The
safe flag will be set, meaning that the other thread can go
about it's business. The safe flag is reset before the V,
so as soon as the mutex is free, other threads can see that
it's not safe to interfere with the event thread.
*/
SDL_mutexP(SDL_EventLock.lock);
SDL_EventLock.safe = 0;
SDL_mutexV(SDL_EventLock.lock);
}
SDL_SetTimerThreaded(0);
event_thread = 0;
return(0);
}
static int SDL_StartEventThread(Uint32 flags)
{
/* Reset everything to zero */
SDL_EventThread = NULL;
memset(&SDL_EventLock, 0, sizeof(SDL_EventLock));
/* Create the lock and set ourselves active */
#ifndef DISABLE_THREADS
SDL_EventQ.lock = SDL_CreateMutex();
if ( SDL_EventQ.lock == NULL ) {
#ifdef macintosh /* On MacOS 7/8, you can't multithread, so no lock needed */
;
#else
return(-1);
#endif
}
#endif /* !DISABLE_THREADS */
SDL_EventQ.active = 1;
if ( (flags&SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD ) {
SDL_EventLock.lock = SDL_CreateMutex();
if ( SDL_EventLock.lock == NULL ) {
return(-1);
}
SDL_EventLock.safe = 0;
SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL);
if ( SDL_EventThread == NULL ) {
return(-1);
}
} else {
event_thread = 0;
}
return(0);
}
static void SDL_StopEventThread(void)
{
SDL_EventQ.active = 0;
if ( SDL_EventThread ) {
SDL_WaitThread(SDL_EventThread, NULL);
SDL_EventThread = NULL;
SDL_DestroyMutex(SDL_EventLock.lock);
}
SDL_DestroyMutex(SDL_EventQ.lock);
}
Uint32 SDL_EventThreadID(void)
{
return(event_thread);
}
/* Public functions */
void SDL_StopEventLoop(void)
{
/* Halt the event thread, if running */
SDL_StopEventThread();
/* Clean out EventQ */
SDL_EventQ.head = 0;
SDL_EventQ.tail = 0;
SDL_EventQ.wmmsg_next = 0;
}
/* This function (and associated calls) may be called more than once */
int SDL_StartEventLoop(Uint32 flags)
{
int retcode;
/* Clean out the event queue */
SDL_EventThread = NULL;
SDL_EventQ.lock = NULL;
SDL_StopEventLoop();
/* No filter to start with, process most event types */
SDL_EventOK = NULL;
memset(SDL_ProcessEvents,SDL_ENABLE,sizeof(SDL_ProcessEvents));
SDL_eventstate = ~0;
/* It's not save to call SDL_EventState() yet */
SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT);
SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE;
/* Initialize event handlers */
retcode = 0;
retcode += SDL_AppActiveInit();
retcode += SDL_KeyboardInit();
retcode += SDL_MouseInit();
retcode += SDL_QuitInit();
if ( retcode < 0 ) {
/* We don't expect them to fail, but... */
return(-1);
}
/* Create the lock and event thread */
if ( SDL_StartEventThread(flags) < 0 ) {
SDL_StopEventLoop();
return(-1);
}
return(0);
}
/* Add an event to the event queue -- called with the queue locked */
static int SDL_AddEvent(SDL_Event *event)
{
int tail, added;
tail = (SDL_EventQ.tail+1)%MAXEVENTS;
if ( tail == SDL_EventQ.head ) {
/* Overflow, drop event */
added = 0;
} else {
SDL_EventQ.event[SDL_EventQ.tail] = *event;
if (event->type == SDL_SYSWMEVENT) {
/* Note that it's possible to lose an event */
int next = SDL_EventQ.wmmsg_next;
SDL_EventQ.wmmsg[next] = *event->syswm.msg;
SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
&SDL_EventQ.wmmsg[next];
SDL_EventQ.wmmsg_next = (next+1)%MAXEVENTS;
}
SDL_EventQ.tail = tail;
added = 1;
}
return(added);
}
/* Cut an event, and return the next valid spot, or the tail */
/* -- called with the queue locked */
static int SDL_CutEvent(int spot)
{
if ( spot == SDL_EventQ.head ) {
SDL_EventQ.head = (SDL_EventQ.head+1)%MAXEVENTS;
return(SDL_EventQ.head);
} else
if ( (spot+1)%MAXEVENTS == SDL_EventQ.tail ) {
SDL_EventQ.tail = spot;
return(SDL_EventQ.tail);
} else
/* We cut the middle -- shift everything over */
{
int here, next;
/* This can probably be optimized with memcpy() -- careful! */
if ( --SDL_EventQ.tail < 0 ) {
SDL_EventQ.tail = MAXEVENTS-1;
}
for ( here=spot; here != SDL_EventQ.tail; here = next ) {
next = (here+1)%MAXEVENTS;
SDL_EventQ.event[here] = SDL_EventQ.event[next];
}
return(spot);
}
/* NOTREACHED */
}
/* Lock the event queue, take a peep at it, and unlock it */
int SDL_PeepEvents(SDL_Event *events, int numevents, SDL_eventaction action,
Uint32 mask)
{
int i, used;
/* Don't look after we've quit */
if ( ! SDL_EventQ.active ) {
return(0);
}
/* Lock the event queue */
used = 0;
if ( SDL_mutexP(SDL_EventQ.lock) == 0 ) {
if ( action == SDL_ADDEVENT ) {
for ( i=0; i<numevents; ++i ) {
used += SDL_AddEvent(&events[i]);
}
} else {
SDL_Event tmpevent;
int spot;
/* If 'events' is NULL, just see if they exist */
if ( events == NULL ) {
action = SDL_PEEKEVENT;
numevents = 1;
events = &tmpevent;
}
spot = SDL_EventQ.head;
while ((used < numevents)&&(spot != SDL_EventQ.tail)) {
if ( mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type) ) {
events[used++] = SDL_EventQ.event[spot];
if ( action == SDL_GETEVENT ) {
spot = SDL_CutEvent(spot);
} else {
spot = (spot+1)%MAXEVENTS;
}
} else {
spot = (spot+1)%MAXEVENTS;
}
}
}
SDL_mutexV(SDL_EventQ.lock);
} else {
SDL_SetError("Couldn't lock event queue");
used = -1;
}
return(used);
}
/* Run the system dependent event loops */
void SDL_PumpEvents(void)
{
if ( !SDL_EventThread ) {
SDL_VideoDevice *video = current_video;
SDL_VideoDevice *this = current_video;
/* Get events from the video subsystem */
if ( video ) {
video->PumpEvents(this);
}
/* Queue pending key-repeat events */
SDL_CheckKeyRepeat();
#ifndef DISABLE_JOYSTICK
/* Check for joystick state change */
if ( SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK) ) {
SDL_JoystickUpdate();
}
#endif
}
}
/* Public functions */
int SDL_PollEvent (SDL_Event *event)
{
SDL_PumpEvents();
return(SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS));
}
int SDL_WaitEvent (SDL_Event *event)
{
while ( 1 ) {
SDL_PumpEvents();
switch(SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
case -1: return -1;
case 1: return 1;
case 0: SDL_Delay(10);
}
}
}
int SDL_PushEvent(SDL_Event *event)
{
return(SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0));
}
void SDL_SetEventFilter (SDL_EventFilter filter)
{
SDL_Event bitbucket;
/* Set filter and discard pending events */
SDL_EventOK = filter;
while ( SDL_PollEvent(&bitbucket) > 0 )
;
}
SDL_EventFilter SDL_GetEventFilter(void)
{
return(SDL_EventOK);
}
Uint8 SDL_EventState (Uint8 type, int state)
{
SDL_Event bitbucket;
Uint8 current_state;
/* If SDL_ALLEVENTS was specified... */
if ( type == 0xFF ) {
current_state = SDL_IGNORE;
for ( type=0; type<SDL_NUMEVENTS; ++type ) {
if ( SDL_ProcessEvents[type] != SDL_IGNORE ) {
current_state = SDL_ENABLE;
}
SDL_ProcessEvents[type] = state;
if ( state == SDL_ENABLE ) {
SDL_eventstate |= (0x00000001 << (type));
} else {
SDL_eventstate &= ~(0x00000001 << (type));
}
}
while ( SDL_PollEvent(&bitbucket) > 0 )
;
return(current_state);
}
/* Just set the state for one event type */
current_state = SDL_ProcessEvents[type];
switch (state) {
case SDL_IGNORE:
case SDL_ENABLE:
/* Set state and discard pending events */
SDL_ProcessEvents[type] = state;
if ( state == SDL_ENABLE ) {
SDL_eventstate |= (0x00000001 << (type));
} else {
SDL_eventstate &= ~(0x00000001 << (type));
}
while ( SDL_PollEvent(&bitbucket) > 0 )
;
break;
default:
/* Querying state? */
break;
}
return(current_state);
}
/* This is a generic event handler.
*/
int SDL_PrivateSysWMEvent(SDL_SysWMmsg *message)
{
int posted;
posted = 0;
if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
SDL_Event event;
memset(&event, 0, sizeof(event));
event.type = SDL_SYSWMEVENT;
event.syswm.msg = message;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
/* Update internal event state */
return(posted);
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* Useful functions and variables from SDL_events.c */
#include "SDL_events.h"
/* Start and stop the event processing loop */
extern int SDL_StartEventLoop(Uint32 flags);
extern void SDL_StopEventLoop(void);
extern void SDL_QuitInterrupt(void);
extern void SDL_Lock_EventThread();
extern void SDL_Unlock_EventThread();
extern Uint32 SDL_EventThreadID(void);
/* Event handler init routines */
extern int SDL_AppActiveInit(void);
extern int SDL_KeyboardInit(void);
extern int SDL_MouseInit(void);
extern int SDL_QuitInit(void);
/* The event filter function */
extern SDL_EventFilter SDL_EventOK;
/* The array of event processing states */
extern Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];
/* Internal event queueing functions
(from SDL_active.c, SDL_mouse.c, SDL_keyboard.c, SDL_quit.c, SDL_events.c)
*/
extern int SDL_PrivateAppActive(Uint8 gain, Uint8 state);
extern int SDL_PrivateMouseMotion(Uint8 buttonstate, int relative,
Sint16 x, Sint16 y);
extern int SDL_PrivateMouseButton(Uint8 state, Uint8 button,Sint16 x,Sint16 y);
extern int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *key);
extern int SDL_PrivateResize(int w, int h);
extern int SDL_PrivateExpose(void);
extern int SDL_PrivateQuit(void);
extern int SDL_PrivateSysWMEvent(SDL_SysWMmsg *message);
/* Used by the activity event handler to remove mouse focus */
extern void SDL_MouseFocus(int focus);
/* Used by the activity event handler to remove keyboard focus */
extern void SDL_ResetKeyboard(void);
/* Used by the event loop to queue pending keyboard repeat events */
extern void SDL_CheckKeyRepeat(void);
/* Used by the OS keyboard code to detect whether or not to do UNICODE */
#ifndef DEFAULT_UNICODE_TRANSLATION
#define DEFAULT_UNICODE_TRANSLATION 0 /* Default off because of overhead */
#endif
extern int SDL_TranslateUNICODE;

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* Refresh event handling code for SDL */
#include "SDL_events.h"
#include "SDL_events_c.h"
/* This is global for SDL_eventloop.c */
int SDL_PrivateExpose(void)
{
int posted;
SDL_Event events[32];
/* Pull out all old refresh events */
SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),
SDL_GETEVENT, SDL_VIDEOEXPOSEMASK);
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[SDL_VIDEOEXPOSE] == SDL_ENABLE ) {
SDL_Event event;
event.type = SDL_VIDEOEXPOSE;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
return(posted);
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* General keyboard handling code for SDL */
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_timer.h"
#include "SDL_events_c.h"
#include "SDL_sysevents.h"
/* Global keystate information */
static Uint8 SDL_KeyState[SDLK_LAST];
static SDLMod SDL_ModState;
int SDL_TranslateUNICODE = 0;
static char *keynames[SDLK_LAST]; /* Array of keycode names */
/*
* jk 991215 - added
*/
#define MINIMUM_REPEAT_INTERVAL 30 /* Minimum repeat interval (30 ms) */
struct {
int firsttime; /* if we check against the delay or repeat value */
int delay; /* the delay before we start repeating */
int interval; /* the delay between key repeat events */
Uint32 timestamp; /* the time the first keydown event occurred */
SDL_Event evt; /* the event we are supposed to repeat */
} SDL_KeyRepeat;
/* Public functions */
int SDL_KeyboardInit(void)
{
SDL_VideoDevice *video = current_video;
SDL_VideoDevice *this = current_video;
Uint16 i;
/* Set default mode of UNICODE translation */
SDL_EnableUNICODE(DEFAULT_UNICODE_TRANSLATION);
/* Initialize the tables */
SDL_ModState = KMOD_NONE;
for ( i=0; i<SDL_TABLESIZE(keynames); ++i )
keynames[i] = NULL;
for ( i=0; i<SDL_TABLESIZE(SDL_KeyState); ++i )
SDL_KeyState[i] = SDL_RELEASED;
video->InitOSKeymap(this);
SDL_EnableKeyRepeat(0, 0);
/* Fill in the blanks in keynames */
keynames[SDLK_BACKSPACE] = "backspace";
keynames[SDLK_TAB] = "tab";
keynames[SDLK_CLEAR] = "clear";
keynames[SDLK_RETURN] = "return";
keynames[SDLK_PAUSE] = "pause";
keynames[SDLK_ESCAPE] = "escape";
keynames[SDLK_SPACE] = "space";
keynames[SDLK_EXCLAIM] = "!";
keynames[SDLK_QUOTEDBL] = "\"";
keynames[SDLK_HASH] = "#";
keynames[SDLK_DOLLAR] = "$";
keynames[SDLK_AMPERSAND] = "&";
keynames[SDLK_QUOTE] = "'";
keynames[SDLK_LEFTPAREN] = "(";
keynames[SDLK_RIGHTPAREN] = ")";
keynames[SDLK_ASTERISK] = "*";
keynames[SDLK_PLUS] = "+";
keynames[SDLK_COMMA] = ",";
keynames[SDLK_MINUS] = "-";
keynames[SDLK_PERIOD] = ".";
keynames[SDLK_SLASH] = "/";
keynames[SDLK_0] = "0";
keynames[SDLK_1] = "1";
keynames[SDLK_2] = "2";
keynames[SDLK_3] = "3";
keynames[SDLK_4] = "4";
keynames[SDLK_5] = "5";
keynames[SDLK_6] = "6";
keynames[SDLK_7] = "7";
keynames[SDLK_8] = "8";
keynames[SDLK_9] = "9";
keynames[SDLK_COLON] = ":";
keynames[SDLK_SEMICOLON] = ";";
keynames[SDLK_LESS] = "<";
keynames[SDLK_EQUALS] = "=";
keynames[SDLK_GREATER] = ">";
keynames[SDLK_QUESTION] = "?";
keynames[SDLK_AT] = "@";
keynames[SDLK_LEFTBRACKET] = "[";
keynames[SDLK_BACKSLASH] = "\\";
keynames[SDLK_RIGHTBRACKET] = "]";
keynames[SDLK_CARET] = "^";
keynames[SDLK_UNDERSCORE] = "_";
keynames[SDLK_BACKQUOTE] = "`";
keynames[SDLK_a] = "a";
keynames[SDLK_b] = "b";
keynames[SDLK_c] = "c";
keynames[SDLK_d] = "d";
keynames[SDLK_e] = "e";
keynames[SDLK_f] = "f";
keynames[SDLK_g] = "g";
keynames[SDLK_h] = "h";
keynames[SDLK_i] = "i";
keynames[SDLK_j] = "j";
keynames[SDLK_k] = "k";
keynames[SDLK_l] = "l";
keynames[SDLK_m] = "m";
keynames[SDLK_n] = "n";
keynames[SDLK_o] = "o";
keynames[SDLK_p] = "p";
keynames[SDLK_q] = "q";
keynames[SDLK_r] = "r";
keynames[SDLK_s] = "s";
keynames[SDLK_t] = "t";
keynames[SDLK_u] = "u";
keynames[SDLK_v] = "v";
keynames[SDLK_w] = "w";
keynames[SDLK_x] = "x";
keynames[SDLK_y] = "y";
keynames[SDLK_z] = "z";
keynames[SDLK_DELETE] = "delete";
keynames[SDLK_WORLD_0] = "world 0";
keynames[SDLK_WORLD_1] = "world 1";
keynames[SDLK_WORLD_2] = "world 2";
keynames[SDLK_WORLD_3] = "world 3";
keynames[SDLK_WORLD_4] = "world 4";
keynames[SDLK_WORLD_5] = "world 5";
keynames[SDLK_WORLD_6] = "world 6";
keynames[SDLK_WORLD_7] = "world 7";
keynames[SDLK_WORLD_8] = "world 8";
keynames[SDLK_WORLD_9] = "world 9";
keynames[SDLK_WORLD_10] = "world 10";
keynames[SDLK_WORLD_11] = "world 11";
keynames[SDLK_WORLD_12] = "world 12";
keynames[SDLK_WORLD_13] = "world 13";
keynames[SDLK_WORLD_14] = "world 14";
keynames[SDLK_WORLD_15] = "world 15";
keynames[SDLK_WORLD_16] = "world 16";
keynames[SDLK_WORLD_17] = "world 17";
keynames[SDLK_WORLD_18] = "world 18";
keynames[SDLK_WORLD_19] = "world 19";
keynames[SDLK_WORLD_20] = "world 20";
keynames[SDLK_WORLD_21] = "world 21";
keynames[SDLK_WORLD_22] = "world 22";
keynames[SDLK_WORLD_23] = "world 23";
keynames[SDLK_WORLD_24] = "world 24";
keynames[SDLK_WORLD_25] = "world 25";
keynames[SDLK_WORLD_26] = "world 26";
keynames[SDLK_WORLD_27] = "world 27";
keynames[SDLK_WORLD_28] = "world 28";
keynames[SDLK_WORLD_29] = "world 29";
keynames[SDLK_WORLD_30] = "world 30";
keynames[SDLK_WORLD_31] = "world 31";
keynames[SDLK_WORLD_32] = "world 32";
keynames[SDLK_WORLD_33] = "world 33";
keynames[SDLK_WORLD_34] = "world 34";
keynames[SDLK_WORLD_35] = "world 35";
keynames[SDLK_WORLD_36] = "world 36";
keynames[SDLK_WORLD_37] = "world 37";
keynames[SDLK_WORLD_38] = "world 38";
keynames[SDLK_WORLD_39] = "world 39";
keynames[SDLK_WORLD_40] = "world 40";
keynames[SDLK_WORLD_41] = "world 41";
keynames[SDLK_WORLD_42] = "world 42";
keynames[SDLK_WORLD_43] = "world 43";
keynames[SDLK_WORLD_44] = "world 44";
keynames[SDLK_WORLD_45] = "world 45";
keynames[SDLK_WORLD_46] = "world 46";
keynames[SDLK_WORLD_47] = "world 47";
keynames[SDLK_WORLD_48] = "world 48";
keynames[SDLK_WORLD_49] = "world 49";
keynames[SDLK_WORLD_50] = "world 50";
keynames[SDLK_WORLD_51] = "world 51";
keynames[SDLK_WORLD_52] = "world 52";
keynames[SDLK_WORLD_53] = "world 53";
keynames[SDLK_WORLD_54] = "world 54";
keynames[SDLK_WORLD_55] = "world 55";
keynames[SDLK_WORLD_56] = "world 56";
keynames[SDLK_WORLD_57] = "world 57";
keynames[SDLK_WORLD_58] = "world 58";
keynames[SDLK_WORLD_59] = "world 59";
keynames[SDLK_WORLD_60] = "world 60";
keynames[SDLK_WORLD_61] = "world 61";
keynames[SDLK_WORLD_62] = "world 62";
keynames[SDLK_WORLD_63] = "world 63";
keynames[SDLK_WORLD_64] = "world 64";
keynames[SDLK_WORLD_65] = "world 65";
keynames[SDLK_WORLD_66] = "world 66";
keynames[SDLK_WORLD_67] = "world 67";
keynames[SDLK_WORLD_68] = "world 68";
keynames[SDLK_WORLD_69] = "world 69";
keynames[SDLK_WORLD_70] = "world 70";
keynames[SDLK_WORLD_71] = "world 71";
keynames[SDLK_WORLD_72] = "world 72";
keynames[SDLK_WORLD_73] = "world 73";
keynames[SDLK_WORLD_74] = "world 74";
keynames[SDLK_WORLD_75] = "world 75";
keynames[SDLK_WORLD_76] = "world 76";
keynames[SDLK_WORLD_77] = "world 77";
keynames[SDLK_WORLD_78] = "world 78";
keynames[SDLK_WORLD_79] = "world 79";
keynames[SDLK_WORLD_80] = "world 80";
keynames[SDLK_WORLD_81] = "world 81";
keynames[SDLK_WORLD_82] = "world 82";
keynames[SDLK_WORLD_83] = "world 83";
keynames[SDLK_WORLD_84] = "world 84";
keynames[SDLK_WORLD_85] = "world 85";
keynames[SDLK_WORLD_86] = "world 86";
keynames[SDLK_WORLD_87] = "world 87";
keynames[SDLK_WORLD_88] = "world 88";
keynames[SDLK_WORLD_89] = "world 89";
keynames[SDLK_WORLD_90] = "world 90";
keynames[SDLK_WORLD_91] = "world 91";
keynames[SDLK_WORLD_92] = "world 92";
keynames[SDLK_WORLD_93] = "world 93";
keynames[SDLK_WORLD_94] = "world 94";
keynames[SDLK_WORLD_95] = "world 95";
keynames[SDLK_KP0] = "[0]";
keynames[SDLK_KP1] = "[1]";
keynames[SDLK_KP2] = "[2]";
keynames[SDLK_KP3] = "[3]";
keynames[SDLK_KP4] = "[4]";
keynames[SDLK_KP5] = "[5]";
keynames[SDLK_KP6] = "[6]";
keynames[SDLK_KP7] = "[7]";
keynames[SDLK_KP8] = "[8]";
keynames[SDLK_KP9] = "[9]";
keynames[SDLK_KP_PERIOD] = "[.]";
keynames[SDLK_KP_DIVIDE] = "[/]";
keynames[SDLK_KP_MULTIPLY] = "[*]";
keynames[SDLK_KP_MINUS] = "[-]";
keynames[SDLK_KP_PLUS] = "[+]";
keynames[SDLK_KP_ENTER] = "enter";
keynames[SDLK_KP_EQUALS] = "equals";
keynames[SDLK_UP] = "up";
keynames[SDLK_DOWN] = "down";
keynames[SDLK_RIGHT] = "right";
keynames[SDLK_LEFT] = "left";
keynames[SDLK_DOWN] = "down";
keynames[SDLK_INSERT] = "insert";
keynames[SDLK_HOME] = "home";
keynames[SDLK_END] = "end";
keynames[SDLK_PAGEUP] = "page up";
keynames[SDLK_PAGEDOWN] = "page down";
keynames[SDLK_F1] = "f1";
keynames[SDLK_F2] = "f2";
keynames[SDLK_F3] = "f3";
keynames[SDLK_F4] = "f4";
keynames[SDLK_F5] = "f5";
keynames[SDLK_F6] = "f6";
keynames[SDLK_F7] = "f7";
keynames[SDLK_F8] = "f8";
keynames[SDLK_F9] = "f9";
keynames[SDLK_F10] = "f10";
keynames[SDLK_F11] = "f11";
keynames[SDLK_F12] = "f12";
keynames[SDLK_F13] = "f13";
keynames[SDLK_F14] = "f14";
keynames[SDLK_F15] = "f15";
keynames[SDLK_NUMLOCK] = "numlock";
keynames[SDLK_CAPSLOCK] = "caps lock";
keynames[SDLK_SCROLLOCK] = "scroll lock";
keynames[SDLK_RSHIFT] = "right shift";
keynames[SDLK_LSHIFT] = "left shift";
keynames[SDLK_RCTRL] = "right ctrl";
keynames[SDLK_LCTRL] = "left ctrl";
keynames[SDLK_RALT] = "right alt";
keynames[SDLK_LALT] = "left alt";
keynames[SDLK_RMETA] = "right meta";
keynames[SDLK_LMETA] = "left meta";
keynames[SDLK_LSUPER] = "left super"; /* "Windows" keys */
keynames[SDLK_RSUPER] = "right super";
keynames[SDLK_MODE] = "alt gr";
keynames[SDLK_COMPOSE] = "compose";
keynames[SDLK_HELP] = "help";
keynames[SDLK_PRINT] = "print screen";
keynames[SDLK_SYSREQ] = "sys req";
keynames[SDLK_BREAK] = "break";
keynames[SDLK_MENU] = "menu";
keynames[SDLK_POWER] = "power";
keynames[SDLK_EURO] = "euro";
/* Done. Whew. */
return(0);
}
/* We lost the keyboard, so post key up messages for all pressed keys */
void SDL_ResetKeyboard(void)
{
SDL_keysym keysym;
SDLKey key;
memset(&keysym, 0, (sizeof keysym));
for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) {
if ( SDL_KeyState[key] == SDL_PRESSED ) {
keysym.sym = key;
SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
}
}
}
int SDL_EnableUNICODE(int enable)
{
int old_mode;
old_mode = SDL_TranslateUNICODE;
if ( enable >= 0 ) {
SDL_TranslateUNICODE = enable;
}
return(old_mode);
}
Uint8 * SDL_GetKeyState (int *numkeys)
{
if ( numkeys != (int *)0 )
*numkeys = SDLK_LAST;
return(SDL_KeyState);
}
SDLMod SDL_GetModState (void)
{
return(SDL_ModState);
}
void SDL_SetModState (SDLMod modstate)
{
SDL_ModState = modstate;
}
char *SDL_GetKeyName(SDLKey key)
{
char *keyname;
keyname = NULL;
if ( key < SDLK_LAST ) {
keyname = keynames[key];
}
if ( keyname == NULL ) {
keyname = "unknown key";
}
return(keyname);
}
/* These are global for SDL_eventloop.c */
int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *keysym)
{
SDL_Event event;
int posted, repeatable;
Uint16 modstate;
memset(&event, 0, sizeof(event));
#if 0
printf("The '%s' key has been %s\n", SDL_GetKeyName(keysym->sym),
state == SDL_PRESSED ? "pressed" : "released");
#endif
/* Set up the keysym */
modstate = (Uint16)SDL_ModState;
repeatable = 0;
if ( state == SDL_PRESSED ) {
keysym->mod = (SDLMod)modstate;
switch (keysym->sym) {
case SDLK_NUMLOCK:
modstate ^= KMOD_NUM;
if ( ! (modstate&KMOD_NUM) )
state = SDL_RELEASED;
keysym->mod = (SDLMod)modstate;
break;
case SDLK_CAPSLOCK:
modstate ^= KMOD_CAPS;
if ( ! (modstate&KMOD_CAPS) )
state = SDL_RELEASED;
keysym->mod = (SDLMod)modstate;
break;
case SDLK_LCTRL:
modstate |= KMOD_LCTRL;
break;
case SDLK_RCTRL:
modstate |= KMOD_RCTRL;
break;
case SDLK_LSHIFT:
modstate |= KMOD_LSHIFT;
break;
case SDLK_RSHIFT:
modstate |= KMOD_RSHIFT;
break;
case SDLK_LALT:
modstate |= KMOD_LALT;
break;
case SDLK_RALT:
modstate |= KMOD_RALT;
break;
case SDLK_LMETA:
modstate |= KMOD_LMETA;
break;
case SDLK_RMETA:
modstate |= KMOD_RMETA;
break;
case SDLK_MODE:
modstate |= KMOD_MODE;
break;
default:
repeatable = 1;
break;
}
} else {
switch (keysym->sym) {
case SDLK_NUMLOCK:
case SDLK_CAPSLOCK:
/* Only send keydown events */
return(0);
case SDLK_LCTRL:
modstate &= ~KMOD_LCTRL;
break;
case SDLK_RCTRL:
modstate &= ~KMOD_RCTRL;
break;
case SDLK_LSHIFT:
modstate &= ~KMOD_LSHIFT;
break;
case SDLK_RSHIFT:
modstate &= ~KMOD_RSHIFT;
break;
case SDLK_LALT:
modstate &= ~KMOD_LALT;
break;
case SDLK_RALT:
modstate &= ~KMOD_RALT;
break;
case SDLK_LMETA:
modstate &= ~KMOD_LMETA;
break;
case SDLK_RMETA:
modstate &= ~KMOD_RMETA;
break;
case SDLK_MODE:
modstate &= ~KMOD_MODE;
break;
default:
break;
}
keysym->mod = (SDLMod)modstate;
}
/* Figure out what type of event this is */
switch (state) {
case SDL_PRESSED:
event.type = SDL_KEYDOWN;
break;
case SDL_RELEASED:
event.type = SDL_KEYUP;
/*
* jk 991215 - Added
*/
if ( SDL_KeyRepeat.timestamp ) {
SDL_KeyRepeat.timestamp = 0;
}
break;
default:
/* Invalid state -- bail */
return(0);
}
/* Drop events that don't change state */
if ( SDL_KeyState[keysym->sym] == state ) {
return(0);
}
/* Update internal keyboard state */
SDL_ModState = (SDLMod)modstate;
SDL_KeyState[keysym->sym] = state;
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) {
event.key.state = state;
event.key.keysym = *keysym;
if ( (SDL_EventOK == NULL) || SDL_EventOK(&event) ) {
posted = 1;
/*
* jk 991215 - Added
*/
if (repeatable && (SDL_KeyRepeat.delay != 0)) {
SDL_KeyRepeat.evt = event;
SDL_KeyRepeat.firsttime = 1;
SDL_KeyRepeat.timestamp=SDL_GetTicks();
}
SDL_PushEvent(&event);
}
}
return(posted);
}
/*
* jk 991215 - Added
*/
void SDL_CheckKeyRepeat(void)
{
if ( SDL_KeyRepeat.timestamp ) {
Uint32 now, interval;
now = SDL_GetTicks();
interval = (now - SDL_KeyRepeat.timestamp);
if ( SDL_KeyRepeat.firsttime ) {
if ( interval > (Uint32)SDL_KeyRepeat.delay ) {
SDL_KeyRepeat.timestamp = now;
SDL_KeyRepeat.firsttime = 0;
}
} else {
if ( interval > (Uint32)SDL_KeyRepeat.interval ) {
SDL_KeyRepeat.timestamp = now;
SDL_PushEvent(&SDL_KeyRepeat.evt);
}
}
}
}
int SDL_EnableKeyRepeat(int delay, int interval)
{
if ( delay < 0 ) {
SDL_SetError("keyboard repeat delay less than zero");
return(-1);
}
SDL_KeyRepeat.firsttime = 0;
SDL_KeyRepeat.delay = delay;
if ( interval < MINIMUM_REPEAT_INTERVAL ) {
SDL_KeyRepeat.interval = MINIMUM_REPEAT_INTERVAL;
} else {
SDL_KeyRepeat.interval = interval;
}
SDL_KeyRepeat.timestamp = 0;
return(0);
}

247
src/events/SDL_mouse.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* General mouse handling code for SDL */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_cursor_c.h"
#include "SDL_sysvideo.h"
/* These are static for our mouse handling code */
static Sint16 SDL_MouseX = 0;
static Sint16 SDL_MouseY = 0;
static Sint16 SDL_DeltaX = 0;
static Sint16 SDL_DeltaY = 0;
static Uint8 SDL_ButtonState = 0;
/* Public functions */
int SDL_MouseInit(void)
{
/* The mouse is at (0,0) */
SDL_MouseX = 0;
SDL_MouseY = 0;
SDL_DeltaX = 0;
SDL_DeltaY = 0;
SDL_ButtonState = 0;
/* That's it! */
return(0);
}
Uint8 SDL_GetMouseState (int *x, int *y)
{
if ( x )
*x = SDL_MouseX;
if ( y )
*y = SDL_MouseY;
return(SDL_ButtonState);
}
Uint8 SDL_GetRelativeMouseState (int *x, int *y)
{
if ( x )
*x = SDL_DeltaX;
if ( y )
*y = SDL_DeltaY;
SDL_DeltaX = 0;
SDL_DeltaY = 0;
return(SDL_ButtonState);
}
static void ClipOffset(Sint16 *x, Sint16 *y)
{
/* This clips absolute mouse coordinates when the apparent
display surface is smaller than the real display surface.
*/
if ( SDL_VideoSurface->offset ) {
*y -= SDL_VideoSurface->offset/SDL_VideoSurface->pitch;
*x -= (SDL_VideoSurface->offset%SDL_VideoSurface->pitch)/
SDL_VideoSurface->format->BytesPerPixel;
}
}
/* These are global for SDL_eventloop.c */
int SDL_PrivateMouseMotion(Uint8 buttonstate, int relative, Sint16 x, Sint16 y)
{
int posted;
Uint16 X, Y;
Sint16 Xrel;
Sint16 Yrel;
/* Don't handle mouse motion if there's no cursor surface */
if ( SDL_VideoSurface == NULL ) {
return(0);
}
/* Default buttonstate is the current one */
if ( ! buttonstate ) {
buttonstate = SDL_ButtonState;
}
Xrel = x;
Yrel = y;
if ( relative ) {
/* Push the cursor around */
x = (SDL_MouseX+x);
y = (SDL_MouseY+y);
} else {
/* Do we need to clip {x,y} ? */
ClipOffset(&x, &y);
}
/* Mouse coordinates range from 0 - width-1 and 0 - height-1 */
if ( x < 0 )
X = 0;
else
if ( x >= SDL_VideoSurface->w )
X = SDL_VideoSurface->w-1;
else
X = (Uint16)x;
if ( y < 0 )
Y = 0;
else
if ( y >= SDL_VideoSurface->h )
Y = SDL_VideoSurface->h-1;
else
Y = (Uint16)y;
/* If not relative mode, generate relative motion from clamped X/Y.
This prevents lots of extraneous large delta relative motion when
the screen is windowed mode and the mouse is outside the window.
*/
if ( ! relative ) {
Xrel = X-SDL_MouseX;
Yrel = Y-SDL_MouseY;
}
/* Update internal mouse state */
SDL_ButtonState = buttonstate;
SDL_MouseX = X;
SDL_MouseY = Y;
SDL_DeltaX += Xrel;
SDL_DeltaY += Yrel;
SDL_MoveCursor(SDL_MouseX, SDL_MouseY);
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE ) {
SDL_Event event;
memset(&event, 0, sizeof(event));
event.type = SDL_MOUSEMOTION;
event.motion.state = buttonstate;
event.motion.x = X;
event.motion.y = Y;
event.motion.xrel = Xrel;
event.motion.yrel = Yrel;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
return(posted);
}
int SDL_PrivateMouseButton(Uint8 state, Uint8 button, Sint16 x, Sint16 y)
{
SDL_Event event;
int posted;
int move_mouse;
Uint8 buttonstate;
memset(&event, 0, sizeof(event));
/* Check parameters */
if ( x || y ) {
ClipOffset(&x, &y);
move_mouse = 1;
/* Mouse coordinates range from 0 - width-1 and 0 - height-1 */
if ( x < 0 )
x = 0;
else
if ( x >= SDL_VideoSurface->w )
x = SDL_VideoSurface->w-1;
if ( y < 0 )
y = 0;
else
if ( y >= SDL_VideoSurface->h )
y = SDL_VideoSurface->h-1;
} else {
move_mouse = 0;
}
if ( ! x )
x = SDL_MouseX;
if ( ! y )
y = SDL_MouseY;
/* Figure out which event to perform */
buttonstate = SDL_ButtonState;
switch ( state ) {
case SDL_PRESSED:
event.type = SDL_MOUSEBUTTONDOWN;
buttonstate |= SDL_BUTTON(button);
break;
case SDL_RELEASED:
event.type = SDL_MOUSEBUTTONUP;
buttonstate &= ~SDL_BUTTON(button);
break;
default:
/* Invalid state -- bail */
return(0);
}
/* Update internal mouse state */
SDL_ButtonState = buttonstate;
if ( move_mouse ) {
SDL_MouseX = x;
SDL_MouseY = y;
SDL_MoveCursor(SDL_MouseX, SDL_MouseY);
}
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) {
event.button.state = state;
event.button.button = button;
event.button.x = x;
event.button.y = y;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
return(posted);
}

84
src/events/SDL_quit.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* General quit handling code for SDL */
#include <stdio.h>
#ifndef NO_SIGNAL_H
#include <signal.h>
#endif
#include "SDL_events.h"
#include "SDL_events_c.h"
#ifndef NO_SIGNAL_H
static void SDL_HandleSIG(int sig)
{
/* Reset the signal handler */
signal(sig, SDL_HandleSIG);
/* Signal a quit interrupt */
SDL_PrivateQuit();
}
#endif /* NO_SIGNAL_H */
/* Public functions */
int SDL_QuitInit(void)
{
#ifndef NO_SIGNAL_H
void (*ohandler)(int);
/* Both SIGINT and SIGTERM are translated into quit interrupts */
ohandler = signal(SIGINT, SDL_HandleSIG);
if ( ohandler != SIG_DFL )
signal(SIGINT, ohandler);
ohandler = signal(SIGTERM, SDL_HandleSIG);
if ( ohandler != SIG_DFL )
signal(SIGTERM, ohandler);
#endif /* NO_SIGNAL_H */
/* That's it! */
return(0);
}
/* This function returns 1 if it's okay to close the application window */
int SDL_PrivateQuit(void)
{
int posted;
posted = 0;
if ( SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE ) {
SDL_Event event;
event.type = SDL_QUIT;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
return(posted);
}

76
src/events/SDL_resize.c Normal file
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@ -0,0 +1,76 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* Resize event handling code for SDL */
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_sysvideo.h"
/* Keep the last resize event so we don't post duplicates */
static struct {
int w;
int h;
} last_resize;
/* This is global for SDL_eventloop.c */
int SDL_PrivateResize(int w, int h)
{
int posted;
SDL_Event events[32];
/* See if this event would change the video surface */
if ( !w || !h ||
((last_resize.w == w) && (last_resize.h == h)) ) {
return(0);
}
last_resize.w = w;
last_resize.h = h;
if ( ! SDL_VideoSurface ||
((w == SDL_VideoSurface->w) && (h == SDL_VideoSurface->h)) ) {
return(0);
}
/* Pull out all old resize events */
SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),
SDL_GETEVENT, SDL_VIDEORESIZEMASK);
/* Post the event, if desired */
posted = 0;
if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) {
SDL_Event event;
event.type = SDL_VIDEORESIZE;
event.resize.w = w;
event.resize.h = h;
if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
posted = 1;
SDL_PushEvent(&event);
}
}
return(posted);
}

42
src/events/SDL_sysevents.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
#include "SDL_sysvideo.h"
/* Useful functions and variables from SDL_sysevents.c */
#ifdef __BEOS__ /* The Be event loop runs in a separate thread */
#define MUST_THREAD_EVENTS
#endif
#ifdef WIN32 /* Win32 doesn't allow a separate event thread */
#define CANT_THREAD_EVENTS
#endif
#ifdef macintosh /* MacOS 7/8 don't support preemptive multi-tasking */
#define CANT_THREAD_EVENTS
#endif