15/*
15    Gets previews of PDF Documents
15*/
10void15 07getPDFPreview(10char15 *filepath,15 10int15 maxy,15 10int15 maxx)
{
15    10char15 imgout[]15 =15 05"05/tmp/prev.jpg05";
15    10pid_t15 pid;
15    pid15 =15 fork();

15    02struct15 07sigaction15 act;
15    sigemptyset(&act.sa_mask);
15    act.sa_flags15 =15 020;
15    act.sa_handler15 =15 cb_sig;

15    02if(pid15 ==15 020)
15    {
15        execlp(05"05pdftoppm05",05"05pdftoppm05",05"05-l05",05"05105",05"05-jpeg05",filepath,05"05-singlefile05",15 05"05/tmp/prev05",15 (10char15 *)10NULL);
15        exit(021);
15    }
15    02else
15    {
15        15//int status;
15        15//waitpid(pid, &status, 0);
15        02if15 (ERR15 ==15  wgetch(current_win))
15        {
15            printf(05"05wgetch interrupted by signal05\n05");
15        }
15        02else
15        {
15                raise(SIGUSR1);
15        }

15        02if15 (raised_signal15 ==15 SIGUSR1)
15        {
15                kill(pid,15 SIGINT);
15        }
15        02else15 02if15 (raised_signal15 ==15 SIGCHLD)
15        {
15                getImgPreview(imgout,15 maxy,15 maxx);
15                clearFlagImg15 =15 021;
15        }
15    }
}