libvo/geometry.c

   1 /* This file (C) Mark Zealey <mark@zealos.org> 2002, released under GPL */
   2
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include "geometry.h"
   6 #include "mp_msg.h"
   7
   8 /* A string of the form [WxH][+X+Y] or xpos[%]:ypos[%] */
   9 char *vo_geometry = NULL;
  10 // set when either width or height is changed
  11 int geometry_wh_changed = 0;
  12 int geometry_xy_changed = 0;
  13
  14 #define RESET_GEOMETRY width = height = xoff = yoff = xper = yper = -1;
  15
  16 // xpos,ypos: position of the left upper corner
  17 // widw,widh: width and height of the window
  18 // scrw,scrh: width and height of the current screen
  19 int geometry(int *xpos, int *ypos, int *widw, int *widh, int scrw, int scrh)
  20 {
  21         int width, height, xoff, yoff, xper, yper;
  22
  23         width = height = xoff = yoff = xper = yper = -1;
  24
  25         if(vo_geometry != NULL) {
  26                 if(sscanf(vo_geometry, "%ix%i+%i+%i", &width, &height, &xoff, &yoff) != 4 )
  27                 {
  28                  RESET_GEOMETRY
  29                  if(sscanf(vo_geometry, "%ix%i", &width, &height) != 2)
  30                  {
  31                   RESET_GEOMETRY
  32                   if(sscanf(vo_geometry, "+%i+%i", &xoff, &yoff) != 2)
  33                   {
  34                    char percent[2];
  35                    RESET_GEOMETRY
  36                    if(sscanf(vo_geometry, "%i%%:%i%1[%]", &xper, &yper, percent) != 3)
  37                    {
  38                     RESET_GEOMETRY
  39                     if(sscanf(vo_geometry, "%i:%i%1[%]", &xoff, &yper, percent) != 3)
  40                     {
  41                      RESET_GEOMETRY
  42                      if(sscanf(vo_geometry, "%i%%:%i", &xper, &yoff) != 2)
  43                      {
  44                      RESET_GEOMETRY
  45                      if(sscanf(vo_geometry, "%i:%i", &xoff, &yoff) != 2)
  46                      {
  47                       RESET_GEOMETRY
  48                       if(sscanf(vo_geometry, "%i%1[%]", &xper, percent) != 2)
  49                       {
  50                         mp_msg(MSGT_VO, MSGL_ERR,
  51                             "-geometry must be in [WxH][+X+Y] | [X[%%]:[Y[%%]]] format, incorrect (%s)\n", vo_geometry);
  52                         return 0;
  53                       }
  54                      }
  55                     }
  56                    }
  57                   }
  58                  }
  59                 }
  60                }
  61
  62                 mp_msg(MSGT_VO, MSGL_V,"geometry set to width: %i,"
  63                   "height: %i, xoff: %i, yoff: %i, xper: %i, yper: %i\n",
  64                   width, height, xoff, yoff, xper, yper);
  65
  66                 if(xper >= 0 && xper <= 100) xoff = (scrw - *widw) * ((float)xper / 100.0);
  67                 if(yper >= 0 && yper <= 100) yoff = (scrh - *widh) * ((float)yper / 100.0);
  68
  69                 mp_msg(MSGT_VO, MSGL_V,"geometry set to width: %i,"
  70                   "height: %i, xoff: %i, yoff: %i, xper: %i, yper: %i\n",
  71                   width, height, xoff, yoff, xper, yper);
  72                 mp_msg(MSGT_VO, MSGL_V,"geometry window parameter: widw: %i,"
  73                   " widh: %i, scrw: %i, scrh: %i\n",*widw, *widh, scrw, scrh);
  74
  75                 /* FIXME: better checking of bounds... */
  76                 if( width != -1 && (width < 0 || width > scrw))
  77                     width = (scrw < *widw) ? scrw : *widw;
  78                 if( height != -1 && (height < 0 || height > scrh))
  79                     height = (scrh < *widh) ? scrh : *widh;
  80                 if(xoff != -1 && (xoff < 0 || xoff + width > scrw)) xoff = 0;
  81                 if(yoff != -1 && (yoff < 0 || yoff + height > scrh)) yoff = 0;
  82
  83                 if(xoff != -1 && xpos) *xpos = xoff;
  84                 if(yoff != -1 && ypos) *ypos = yoff;
  85                 if(width != -1 && widw) *widw = width;
  86                 if(height != -1 && widh) *widh = height;
  87
  88                 if( width != -1 || height != -1)
  89                     geometry_wh_changed = 1;
  90                 if( xoff != -1 || yoff != -1)
  91                     geometry_xy_changed = 1;
  92         }
  93         return 1;
  94 }
  95
  96 #undef RESET_GEOMETRY