Re: auto refresh file in textview

[Olivier Sessink <oliviersessink gmail com>]

On 08/23/2012 02:45 PM, Rudra Banerjee wrote:
> Dear friends,
> I am openning an existing file in textview from command line as:
>
>     textview = gtk_text_view_new();
>     gtk_container_add(GTK_CONTAINER(scrolledwindow), textview);
>     textbuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
>     if (argc > 1 && argv[1] != NULL) {
>         char *flnm = argv[1];
>         read_view(flnm);
>     }
>
>
> where the read_view is defined as:
>
> static void read_view(char *inpfn) {
>     char *buffer;
>     stat(inpfn, &filestat);
>     textbuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
>     buffer = (char *) malloc(filestat.st_size * sizeof (char));
>     efile = fopen(inpfn, "r");
>     fread(buffer, filestat.st_size, 1, efile);
>     gtk_text_buffer_set_text(textbuffer, buffer, filestat.st_size);
>     free(buffer);
> }
>
>
> I am writing in the file that is opened as:
>
>    FILE *fop = fopen(filename, "a" );
>     g_fprintf( fop, "@%s{%s,\n", strcombo, strkey );
>
> where the fileopen is difined globally.
>
> whenever I am writing, it is saved, but to see the change, I have to
> reopen the file(obviously).

instead of appending text to the file, you better append the text to the
GtkTextBuffer, and then save the GtkTextBuffer to a file once in a while.

if you need to append to the file (and not write the complete file once
in a while) I would try to append both to the file and to the
textbuffer, so you don't need to reload the entire file for every append.

Olivier