src/video/aalib/SDL_aaevents.c

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997-2009 Sam Lantinga
   4
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Lesser General Public
   7     License as published by the Free Software Foundation; either
   8     version 2.1 of the License, or (at your option) any later version.
   9
  10     This library is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public
  16     License along with this library; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19     Sam Lantinga
  20     slouken@libsdl.org
  21 */
  22 #include "SDL_config.h"
  23
  24 /* Handle the event stream, converting AA events into SDL events */
  25
  26 #include <stdio.h>
  27
  28 #include <aalib.h>
  29
  30 #include "SDL.h"
  31 #include "../../events/SDL_sysevents.h"
  32 #include "../../events/SDL_events_c.h"
  33 #include "SDL_aavideo.h"
  34 #include "SDL_aaevents_c.h"
  35
  36 /* The translation tables from a console scancode to a SDL keysym */
  37 static SDLKey keymap[401];
  38
  39 static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym);
  40
  41
  42 void AA_PumpEvents(_THIS)
  43 {
  44         int posted = 0;
  45         int mouse_button, mouse_x, mouse_y;
  46         int evt;
  47         SDL_keysym keysym;
  48
  49         static int prev_button = -1, prev_x = -1, prev_y = -1;
  50
  51         if( ! this->screen ) /* Wait till we got the screen initialized */
  52           return;
  53
  54         do {
  55                 posted = 0;
  56                 /* Gather events */
  57
  58                 /* Get mouse status */
  59                 SDL_mutexP(AA_mutex);
  60                 aa_getmouse (AA_context, &mouse_x, &mouse_y, &mouse_button);
  61                 SDL_mutexV(AA_mutex);
  62                 mouse_x = mouse_x * this->screen->w / aa_scrwidth (AA_context);
  63                 mouse_y = mouse_y * this->screen->h / aa_scrheight (AA_context);
  64
  65                 /* Compare against previous state and generate events */
  66                 if( prev_button != mouse_button ) {
  67                         if( mouse_button & AA_BUTTON1 ) {
  68                                 if ( ! (prev_button & AA_BUTTON1) ) {
  69                                         posted += SDL_PrivateMouseButton(SDL_PRESSED, 1, 0, 0);
  70                                 }
  71                         } else {
  72                                 if ( prev_button & AA_BUTTON1 ) {
  73                                         posted += SDL_PrivateMouseButton(SDL_RELEASED, 1, 0, 0);
  74                                 }
  75                         }
  76                         if( mouse_button & AA_BUTTON2 ) {
  77                                 if ( ! (prev_button & AA_BUTTON2) ) {
  78                                         posted += SDL_PrivateMouseButton(SDL_PRESSED, 2, 0, 0);
  79                                 }
  80                         } else {
  81                                 if ( prev_button & AA_BUTTON2 ) {
  82                                         posted += SDL_PrivateMouseButton(SDL_RELEASED, 2, 0, 0);
  83                                 }
  84                         }
  85                         if( mouse_button & AA_BUTTON3 ) {
  86                                 if ( ! (prev_button & AA_BUTTON3) ) {
  87                                         posted += SDL_PrivateMouseButton(SDL_PRESSED, 3, 0, 0);
  88                                 }
  89                         } else {
  90                                 if ( prev_button & AA_BUTTON3 ) {
  91                                         posted += SDL_PrivateMouseButton(SDL_RELEASED, 3, 0, 0);
  92                                 }
  93                         }
  94                 }
  95                 if ( prev_x != mouse_x || prev_y != mouse_y ) {
  96                         posted += SDL_PrivateMouseMotion(0, 0, mouse_x, mouse_y);
  97                 }
  98
  99                 prev_button = mouse_button;
 100                 prev_x = mouse_x; prev_y = mouse_y;
 101
 102                 /* Get keyboard event */
 103                 SDL_mutexP(AA_mutex);
 104                 evt = aa_getevent(AA_context, 0);
 105                 SDL_mutexV(AA_mutex);
 106                 if ( (evt > AA_NONE) && (evt < AA_RELEASE) && (evt != AA_MOUSE) && (evt != AA_RESIZE) ) {
 107                         /* Key pressed */
 108 /*                      printf("Key pressed: %d (%c)\n", evt, evt); */
 109                         posted += SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(evt, &keysym));
 110                 } else if ( evt >= AA_RELEASE ) {
 111                         /* Key released */
 112                         evt &= ~AA_RELEASE;
 113 /*                      printf("Key released: %d (%c)\n", evt, evt); */
 114                         posted += SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(evt, &keysym));
 115                 }
 116         } while ( posted );
 117 }
 118
 119 void AA_InitOSKeymap(_THIS)
 120 {
 121         int i;
 122         static const char *std_keys = " 01234567890&#'()_-|$*+-=/\\:;.,!?<>{}[]@~%^\x9";
 123         const char *std;
 124
 125         /* Initialize the AAlib key translation table */
 126         for ( i=0; i<SDL_arraysize(keymap); ++i )
 127                 keymap[i] = SDLK_UNKNOWN;
 128
 129         /* Alphabet keys */
 130         for ( i = 0; i<26; ++i ){
 131                 keymap['a' + i] = SDLK_a+i;
 132                 keymap['A' + i] = SDLK_a+i;
 133         }
 134         /* Function keys */
 135         for ( i = 0; i<12; ++i ){
 136                 keymap[334 + i] = SDLK_F1+i;
 137         }
 138         /* Keys that have the same symbols and don't have to be translated */
 139         for( std = std_keys; *std; std ++ ) {
 140                 keymap[*std] = *std;
 141         }
 142
 143         keymap[13] = SDLK_RETURN;
 144         keymap[AA_BACKSPACE] = SDLK_BACKSPACE;
 145
 146         keymap[369] = SDLK_LSHIFT;
 147         keymap[370] = SDLK_RSHIFT;
 148         keymap[371] = SDLK_LCTRL;
 149         keymap[372] = SDLK_RCTRL;
 150         keymap[377] = SDLK_LALT;
 151         keymap[270] = SDLK_RALT;
 152         keymap[271] = SDLK_NUMLOCK;
 153         keymap[373] = SDLK_CAPSLOCK;
 154         keymap[164] = SDLK_SCROLLOCK;
 155
 156         keymap[243] = SDLK_INSERT;
 157         keymap[304] = SDLK_DELETE;
 158         keymap[224] = SDLK_HOME;
 159         keymap[231] = SDLK_END;
 160         keymap[229] = SDLK_PAGEUP;
 161         keymap[230] = SDLK_PAGEDOWN;
 162
 163         keymap[241] = SDLK_PRINT;
 164         keymap[163] = SDLK_BREAK;
 165
 166         keymap[302] = SDLK_KP0;
 167         keymap[300] = SDLK_KP1;
 168         keymap[297] = SDLK_KP2;
 169         keymap[299] = SDLK_KP3;
 170         keymap[294] = SDLK_KP4;
 171         keymap[301] = SDLK_KP5;
 172         keymap[296] = SDLK_KP6;
 173         keymap[293] = SDLK_KP7;
 174         keymap[295] = SDLK_KP8;
 175         keymap[298] = SDLK_KP9;
 176
 177         keymap[AA_ESC] = SDLK_ESCAPE;
 178         keymap[AA_UP] = SDLK_UP;
 179         keymap[AA_DOWN] = SDLK_DOWN;
 180         keymap[AA_LEFT] = SDLK_LEFT;
 181         keymap[AA_RIGHT] = SDLK_RIGHT;
 182 }
 183
 184 static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym)
 185 {
 186         /* Sanity check */
 187         if ( scancode >= SDL_arraysize(keymap) )
 188                 scancode = AA_UNKNOWN;
 189
 190         /* Set the keysym information */
 191         keysym->scancode = scancode;
 192         keysym->sym = keymap[scancode];
 193         keysym->mod = KMOD_NONE;
 194
 195         /* If UNICODE is on, get the UNICODE value for the key */
 196         keysym->unicode = 0;
 197         if ( SDL_TranslateUNICODE ) {
 198                 /* Populate the unicode field with the ASCII value */
 199                 keysym->unicode = scancode;
 200         }
 201         return(keysym);
 202 }