apps/imgshow/main.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program 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
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <libx/base.h>
  24 #include <libx/object.h>
  25 #include <libx/image.h>
  26 #include <libx/cursor.h>
  27 #include <libx/text.h>
  28
  29 #define         ESC                             1
  30 #define         ARROWLEFT                       75
  31 #define         ARROWRIGHT                      77
  32 #define         ARROWUP                         72
  33 #define         ARROWDOWN                       80
  34
  35
  36 unsigned key_pressed (int keycode)
  37 {
  38         int scancode = getkey ();
  39
  40         if (scancode == keycode)
  41                 return 1;
  42
  43         if (scancode == keycode+128)
  44                 return 2;
  45         else
  46                 return 0;
  47 }
  48
  49 int main (int argc, char **argv)
  50 {
  51         if (argc < 1) {
  52                 puts ("Pls specify bmp image filename\nimgshow <bmpimage>\n");
  53                 exit (0);
  54         }
  55
  56         /* Try open image */
  57         xbitmap *image = ximage_open (argv[1]);
  58
  59         if (!image)
  60                 return 0;
  61
  62         /* Switch to VGA graphics mode */
  63         xinit ();
  64
  65         /* Clean screen */
  66         xcls (0);
  67
  68         /* Draw image to vga buffer */
  69         ximage_draw (image, 0, 0, -1);
  70
  71         xtext_puts (10, image->width+10, 30, (char *) argv[1]);
  72
  73         char buf_x[4];
  74         itoa (image->height, buf_x, 10);
  75
  76         char buf_y[4];
  77         itoa (image->width, buf_y, 10);
  78
  79         xtext_puts (10, image->width+20, 30, "X: ");
  80         xtext_puts (25, image->width+20, 30, buf_x);
  81
  82         xtext_puts (10, image->width+29, 30, "Y: ");
  83         xtext_puts (25, image->width+29, 30, buf_y);
  84
  85         /* Flip double buffer - show image */
  86         xfbswap ();
  87
  88         /* Repeat until escape is pressed */
  89         while (!key_pressed (ESC))
  90                 schedule ();
  91
  92         /* Go back to textual mode */
  93         xexit ();
  94
  95         /* Exit app */
  96         return 0;
  97 }