src/gromacs/commandline/viewit.cpp

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  38 /* This file is completely threadsafe - keep it that way! */
  39 #include "gmxpre.h"
  40
  41 #include "viewit.h"
  42
  43 #include <cstdlib>
  44 #include <cstring>
  45
  46 #include "gromacs/commandline/filenm.h"
  47 #include "gromacs/fileio/oenv.h"
  48 #include "gromacs/utility/arraysize.h"
  49 #include "gromacs/utility/cstringutil.h"
  50 #include "gromacs/utility/fatalerror.h"
  51
  52 static const int can_view_ftp[] = { 0, efEPS, efXPM, efXVG, efPDB };
  53 #define NVIEW asize(can_view_ftp)
  54 static const char* view_program[] = { nullptr, "ghostview", "display", nullptr, "xterm -e rasmol" };
  55
  56 static int can_view(int ftp)
  57 {
  58     int i;
  59
  60     for (i = 1; i < NVIEW; i++)
  61     {
  62         if (ftp == can_view_ftp[i])
  63         {
  64             return i;
  65         }
  66     }
  67
  68     return 0;
  69 }
  70
  71 void do_view(const gmx_output_env_t* oenv, const char* fn, const char* opts)
  72 {
  73     char        buf[STRLEN], env[STRLEN];
  74     const char* cmd;
  75     int         ftp, n;
  76
  77     if (output_env_get_view(oenv) && fn)
  78     {
  79         if (getenv("DISPLAY") == nullptr)
  80         {
  81             fprintf(stderr, "Can not view %s, no DISPLAY environment variable.\n", fn);
  82         }
  83         else
  84         {
  85             ftp = fn2ftp(fn);
  86             sprintf(env, "GMX_VIEW_%s", ftp2ext(ftp));
  87             upstring(env);
  88             switch (ftp)
  89             {
  90                 case efXVG:
  91                     if (!(cmd = getenv(env)))
  92                     {
  93                         if (getenv("GMX_USE_XMGR"))
  94                         {
  95                             cmd = "xmgr";
  96                         }
  97                         else
  98                         {
  99                             cmd = "xmgrace";
 100                         }
 101                     }
 102                     break;
 103                 default:
 104                     if ((n = can_view(ftp)))
 105                     {
 106                         if (!(cmd = getenv(env)))
 107                         {
 108                             cmd = view_program[n];
 109                         }
 110                     }
 111                     else
 112                     {
 113                         fprintf(stderr, "Don't know how to view file %s", fn);
 114                         return;
 115                     }
 116             }
 117             if (strlen(cmd))
 118             {
 119                 sprintf(buf, "%s %s %s &", cmd, opts ? opts : "", fn);
 120                 fprintf(stderr, "Executing '%s'\n", buf);
 121                 if (0 != system(buf))
 122                 {
 123                     gmx_fatal(FARGS, "Failed executing command: %s", buf);
 124                 }
 125             }
 126         }
 127     }
 128 }
 129
 130 void view_all(const gmx_output_env_t* oenv, int nf, t_filenm fnm[])
 131 {
 132     int i;
 133
 134     for (i = 0; i < nf; i++)
 135     {
 136         if (can_view(fnm[i].ftp) && is_output(&(fnm[i])) && (!is_optional(&(fnm[i])) || is_set(&(fnm[i]))))
 137         {
 138             do_view(oenv, fnm[i].filenames[0].c_str(), nullptr);
 139         }
 140     }
 141 }