Hi, Eric, On Tue, Jan 3, 2017 at 5:55 PM, <cecashon@xxxxxxx> wrote: > > This turns out to be trickier than expected. In GTK3 I kept getting an > invalid iter warning. Found a previous discussion about it at > > https://mail.gnome.org/archives/gtk-app-devel-list/2015-October/msg00015.html > > Stefan Salewski figured it out. Thankfully so because I tried quite a few > things to try to get rid of the iter warning. > > Test the following out. See if it helps. There is a gtk_text_iter_assign() > in there for GTK3. You can remove that for GTK2. GTK2 doesn't seem to be > cranky about the invalid iters. You should be able to set a max length for > the textview buffer in both GTK2 and GTK3 though. I tried to modify the condition to prevent inserting the text at any location if the resulting text is bigger than maximum, but it didn't even compiled: static void maxlen_handler(GtkTextBuffer *buffer, GtkTextIter *location, gchar *text, gint WXUNUSED(len), gpointer *user_data) { gint count = gtk_text_buffer_get_char_count( buffer ); if( count > 5 ) { GtkTextIter end; gtk_text_buffer_get_end_iter( text, &end ); gtk_text_buffer_delete( buffer, location, &end ); gtk_text_iter_assign( location, offset ); } } Any idea? Thank you. > > Eric > > > //gcc -Wall textview1.c -o textview1 `pkg-config --cflags --libs gtk+-3.0` > > #include <gtk/gtk.h> > > static void insert_text(GtkTextBuffer *buffer, GtkTextIter *location, gchar > *text, gint len, gpointer user_data) > { > static int i=1; > gint count=gtk_text_buffer_get_char_count(buffer); > g_print("%i Chars %i\n", i++, count); > if(count>10) > { > GtkTextIter offset, end; > gtk_text_buffer_get_iter_at_offset(buffer, &offset, 10); > gtk_text_buffer_get_end_iter(buffer, &end); > g_print("Remove Range %i %i\n", gtk_text_iter_get_offset(&offset), > gtk_text_iter_get_offset(&end)); > gtk_text_buffer_delete(buffer, &offset, &end); > gtk_text_iter_assign(location, &offset); > } > } > int main (int argc, char *argv[]) > { > gtk_init(&argc, &argv); > > GtkWidget *window=gtk_window_new(GTK_WINDOW_TOPLEVEL); > gtk_window_set_title(GTK_WINDOW(window), "Textview"); > gtk_window_set_default_size(GTK_WINDOW(window), 400, 400); > gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER); > gtk_container_set_border_width(GTK_CONTAINER(window), 20); > g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL); > > GtkWidget *scroll=gtk_scrolled_window_new(NULL, NULL); > > GtkWidget *textview=gtk_text_view_new(); > GtkTextBuffer *buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview)); > g_signal_connect_after(buffer, "insert-text", G_CALLBACK(insert_text), > NULL); > > gtk_container_add(GTK_CONTAINER(scroll), textview); > > gtk_container_add(GTK_CONTAINER(window), scroll); > > gtk_widget_show_all(window); > > gtk_main(); > > return 0; > } > > > > > -----Original Message----- > From: Igor Korot <ikorot01@xxxxxxxxx> > To: gtk-list <gtk-list@xxxxxxxxx> > Sent: Sat, Dec 31, 2016 4:33 pm > Subject: Set maximum length for text control > > Hi, > In the GtkEntry there is a function "gtk_entry_set_max_length()". > However, it is for a single line text entry. > > Is there a way to set maximum length for multi-line text control? > > Thank you. > > Happy New Year!! > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > https://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
