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SDL_aaevents.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* Handle the event stream, converting AA events into SDL events */
#include <stdio.h>
#include <aalib.h>
#include "SDL.h"
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#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
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#include "SDL_aavideo.h"
#include "SDL_aaevents_c.h"
/* The translation tables from a console scancode to a SDL keysym */
static SDLKey keymap[401];
static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym);
void AA_PumpEvents(_THIS)
{
int posted = 0;
int mouse_button, mouse_x, mouse_y;
int evt;
SDL_keysym keysym;
static int prev_button = -1, prev_x = -1, prev_y = -1;
if( ! this->screen ) /* Wait till we got the screen initialized */
return;
do {
posted = 0;
/* Gather events */
/* Get mouse status */
SDL_mutexP(AA_mutex);
aa_getmouse (AA_context, &mouse_x, &mouse_y, &mouse_button);
SDL_mutexV(AA_mutex);
mouse_x = mouse_x * this->screen->w / aa_scrwidth (AA_context);
mouse_y = mouse_y * this->screen->h / aa_scrheight (AA_context);
/* Compare against previous state and generate events */
if( prev_button != mouse_button ) {
if( mouse_button & AA_BUTTON1 ) {
if ( ! (prev_button & AA_BUTTON1) ) {
posted += SDL_PrivateMouseButton(SDL_PRESSED, 1, 0, 0);
}
} else {
if ( prev_button & AA_BUTTON1 ) {
posted += SDL_PrivateMouseButton(SDL_RELEASED, 1, 0, 0);
}
}
if( mouse_button & AA_BUTTON2 ) {
if ( ! (prev_button & AA_BUTTON2) ) {
posted += SDL_PrivateMouseButton(SDL_PRESSED, 2, 0, 0);
}
} else {
if ( prev_button & AA_BUTTON2 ) {
posted += SDL_PrivateMouseButton(SDL_RELEASED, 2, 0, 0);
}
}
if( mouse_button & AA_BUTTON3 ) {
if ( ! (prev_button & AA_BUTTON3) ) {
posted += SDL_PrivateMouseButton(SDL_PRESSED, 3, 0, 0);
}
} else {
if ( prev_button & AA_BUTTON3 ) {
posted += SDL_PrivateMouseButton(SDL_RELEASED, 3, 0, 0);
}
}
}
if ( prev_x != mouse_x || prev_y != mouse_y ) {
posted += SDL_PrivateMouseMotion(0, 0, mouse_x, mouse_y);
}
prev_button = mouse_button;
prev_x = mouse_x; prev_y = mouse_y;
/* Get keyboard event */
SDL_mutexP(AA_mutex);
evt = aa_getevent(AA_context, 0);
SDL_mutexV(AA_mutex);
if ( (evt > AA_NONE) && (evt < AA_RELEASE) && (evt != AA_MOUSE) && (evt != AA_RESIZE) ) {
/* Key pressed */
/* printf("Key pressed: %d (%c)\n", evt, evt); */
posted += SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(evt, &keysym));
} else if ( evt >= AA_RELEASE ) {
/* Key released */
evt &= ~AA_RELEASE;
/* printf("Key released: %d (%c)\n", evt, evt); */
posted += SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(evt, &keysym));
}
} while ( posted );
}
void AA_InitOSKeymap(_THIS)
{
int i;
static const char *std_keys = " 01234567890&#'()_-|$*+-=/\\:;.,!?<>{}[]@~%^\x9";
const char *std;
/* Initialize the AAlib key translation table */
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for ( i=0; i<SDL_arraysize(keymap); ++i )
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keymap[i] = SDLK_UNKNOWN;
/* Alphabet keys */
for ( i = 0; i<26; ++i ){
keymap['a' + i] = SDLK_a+i;
keymap['A' + i] = SDLK_a+i;
}
/* Function keys */
for ( i = 0; i<12; ++i ){
keymap[334 + i] = SDLK_F1+i;
}
/* Keys that have the same symbols and don't have to be translated */
for( std = std_keys; *std; std ++ ) {
keymap[*std] = *std;
}
keymap[13] = SDLK_RETURN;
keymap[AA_BACKSPACE] = SDLK_BACKSPACE;
keymap[369] = SDLK_LSHIFT;
keymap[370] = SDLK_RSHIFT;
keymap[371] = SDLK_LCTRL;
keymap[372] = SDLK_RCTRL;
keymap[377] = SDLK_LALT;
keymap[270] = SDLK_RALT;
keymap[271] = SDLK_NUMLOCK;
keymap[373] = SDLK_CAPSLOCK;
keymap[164] = SDLK_SCROLLOCK;
keymap[243] = SDLK_INSERT;
keymap[304] = SDLK_DELETE;
keymap[224] = SDLK_HOME;
keymap[231] = SDLK_END;
keymap[229] = SDLK_PAGEUP;
keymap[230] = SDLK_PAGEDOWN;
keymap[241] = SDLK_PRINT;
keymap[163] = SDLK_BREAK;
keymap[302] = SDLK_KP0;
keymap[300] = SDLK_KP1;
keymap[297] = SDLK_KP2;
keymap[299] = SDLK_KP3;
keymap[294] = SDLK_KP4;
keymap[301] = SDLK_KP5;
keymap[296] = SDLK_KP6;
keymap[293] = SDLK_KP7;
keymap[295] = SDLK_KP8;
keymap[298] = SDLK_KP9;
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keymap[AA_ESC] = SDLK_ESCAPE;
keymap[AA_UP] = SDLK_UP;
keymap[AA_DOWN] = SDLK_DOWN;
keymap[AA_LEFT] = SDLK_LEFT;
keymap[AA_RIGHT] = SDLK_RIGHT;
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}
static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym)
{
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/* Sanity check */
if ( scancode >= SDL_arraysize(keymap) )
scancode = AA_UNKNOWN;
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/* Set the keysym information */
keysym->scancode = scancode;
keysym->sym = keymap[scancode];
keysym->mod = KMOD_NONE;
/* If UNICODE is on, get the UNICODE value for the key */
keysym->unicode = 0;
if ( SDL_TranslateUNICODE ) {
/* Populate the unicode field with the ASCII value */
keysym->unicode = scancode;
}
return(keysym);
}