SDL_aaevents.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:6k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_aaevents.c,v 1.4 2002/04/22 21:38:04 wmay Exp $";
- #endif
- /* Handle the event stream, converting AA events into SDL events */
- #include <stdio.h>
- #include <aalib.h>
- #include "SDL.h"
- #include "SDL_sysevents.h"
- #include "SDL_events_c.h"
- #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 */
- for ( i=0; i<SDL_TABLESIZE(keymap); ++i )
- keymap[i] = SDLK_UNKNOWN;
- 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;
- /* 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;
- }
- static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym)
- {
- /* 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);
- }