osdep/getch2-win.c

   1 /* Windows TermIO
   2  *
   3  * copyright (C) 2003 Sascha Sommer
   4  *
   5  * This file is part of MPlayer.
   6  *
   7  * MPlayer is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * MPlayer is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 // See  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
  23 // for additional virtual keycodes
  24
  25
  26 #include "config.h"
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <windows.h>
  30 #include "keycodes.h"
  31 #include "input/input.h"
  32 #include "mp_fifo.h"
  33 // HACK, stdin is used as something else below
  34 #undef stdin
  35
  36 int mp_input_slave_cmd_func(int fd,char* dest,int size){
  37   DWORD retval;
  38   HANDLE stdin = GetStdHandle(STD_INPUT_HANDLE);
  39   if(!PeekNamedPipe(stdin, NULL, size, &retval, NULL, NULL) || !retval){
  40           return MP_INPUT_NOTHING;
  41   }
  42   if(retval>size)retval=size;
  43   ReadFile(stdin, dest, retval, &retval, NULL);
  44   if(retval)return retval;
  45   return MP_INPUT_NOTHING;
  46 }
  47
  48 int screen_width=80;
  49 int screen_height=24;
  50 char * erase_to_end_of_line = NULL;
  51
  52 void get_screen_size(void){
  53 }
  54
  55 static HANDLE stdin;
  56 static int getch2_status=0;
  57
  58 static int getch2_internal(void)
  59 {
  60         INPUT_RECORD eventbuffer[128];
  61     DWORD retval;
  62         int i=0;
  63     if(!getch2_status)return -1;
  64     /*check if there are input events*/
  65         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
  66         {
  67                 printf("getch2: can't get number of input events: %i\n",GetLastError());
  68                 return -1;
  69         }
  70     if(retval<=0)return -1;
  71
  72         /*read all events*/
  73         if(!ReadConsoleInput(stdin,eventbuffer,128,&retval))
  74         {
  75                 printf("getch: can't read input events\n");
  76                 return -1;
  77         }
  78
  79         /*filter out keyevents*/
  80     for (i = 0; i < retval; i++)
  81     {
  82                 switch(eventbuffer[i].EventType)
  83                 {
  84                         case KEY_EVENT:
  85                                 /*only a pressed key is interresting for us*/
  86                                 if(eventbuffer[i].Event.KeyEvent.bKeyDown == TRUE)
  87                                 {
  88                                         /*check for special keys*/
  89                                         switch(eventbuffer[i].Event.KeyEvent.wVirtualKeyCode)
  90                                         {
  91                                         case VK_HOME:
  92                                                 return KEY_HOME;
  93                                         case VK_END:
  94                                                 return KEY_END;
  95                                         case VK_DELETE:
  96                                                 return KEY_DEL;
  97                     case VK_INSERT:
  98                                                 return KEY_INS;
  99                                         case VK_BACK:
 100                                                 return KEY_BS;
 101                                         case VK_PRIOR:
 102                                                 return KEY_PGUP;
 103                                         case VK_NEXT:
 104                                                 return KEY_PGDWN;
 105                                         case VK_RETURN:
 106                                                 return KEY_ENTER;
 107                                         case VK_ESCAPE:
 108                                                 return KEY_ESC;
 109                                         case VK_LEFT:
 110                                                 return KEY_LEFT;
 111                                         case VK_UP:
 112                                                 return KEY_UP;
 113                                         case VK_RIGHT:
 114                                                 return KEY_RIGHT;
 115                                         case VK_DOWN:
 116                                                 return KEY_DOWN;
 117                     case VK_SHIFT:
 118                         continue;
 119                                         }
 120                                         /*check for function keys*/
 121                                 if(0x87 >= eventbuffer[i].Event.KeyEvent.wVirtualKeyCode && eventbuffer[i].Event.KeyEvent.wVirtualKeyCode >= 0x70)
 122                                                 return KEY_F + 1 + eventbuffer[i].Event.KeyEvent.wVirtualKeyCode - 0x70;
 123
 124                                         /*only characters should be remaining*/
 125                                         //printf("getch2: YOU PRESSED \"%c\" \n",eventbuffer[i].Event.KeyEvent.uChar.AsciiChar);
 126                                     return eventbuffer[i].Event.KeyEvent.uChar.AsciiChar;
 127                                 }
 128                                 break;
 129
 130                         case MOUSE_EVENT:
 131             case WINDOW_BUFFER_SIZE_EVENT:
 132             case FOCUS_EVENT:
 133             case MENU_EVENT:
 134             default:
 135                                 //printf("getch2: unsupported event type");
 136                             break;
 137         }
 138     }
 139         return -1;
 140 }
 141
 142 void getch2(void)
 143 {
 144     int r = getch2_internal();
 145     if (r >= 0)
 146         mplayer_put_key(r);
 147 }
 148
 149 void getch2_enable(void)
 150 {
 151         DWORD retval;
 152     stdin = GetStdHandle(STD_INPUT_HANDLE);
 153         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
 154         {
 155                 printf("getch2: %i can't get number of input events  [disabling console input]\n",GetLastError());
 156                 getch2_status = 0;
 157         }
 158     else getch2_status=1;
 159 }
 160
 161 void getch2_disable(void)
 162 {
 163     if(!getch2_status) return; // already disabled / never enabled
 164     getch2_status=0;
 165 }
 166
 167 #ifdef CONFIG_ICONV
 168 static const struct {
 169     unsigned cp;
 170     char* alias;
 171 } cp_alias[] = {
 172     { 20127, "ASCII" },
 173     { 20866, "KOI8-R" },
 174     { 21866, "KOI8-RU" },
 175     { 28591, "ISO-8859-1" },
 176     { 28592, "ISO-8859-2" },
 177     { 28593, "ISO-8859-3" },
 178     { 28594, "ISO-8859-4" },
 179     { 28595, "ISO-8859-5" },
 180     { 28596, "ISO-8859-6" },
 181     { 28597, "ISO-8859-7" },
 182     { 28598, "ISO-8859-8" },
 183     { 28599, "ISO-8859-9" },
 184     { 28605, "ISO-8859-15" },
 185     { 65001, "UTF-8" },
 186     { 0, NULL }
 187 };
 188
 189 char* get_term_charset(void)
 190 {
 191     char codepage[10];
 192     unsigned i, cpno = GetConsoleOutputCP();
 193     if (!cpno)
 194         cpno = GetACP();
 195     if (!cpno)
 196         return NULL;
 197
 198     for (i = 0; cp_alias[i].cp; i++)
 199         if (cpno == cp_alias[i].cp)
 200             return strdup(cp_alias[i].alias);
 201
 202     snprintf(codepage, sizeof(codepage), "CP%u", cpno);
 203     return strdup(codepage);
 204 }
 205 #endif