/*! \brief Opens a new page from a file. * \par Function Description * This function opens the file whose name is <B>filename</B> in a * new PAGE of <B>toplevel</B>. * * If there is no page for <B>filename</B> in <B>toplevel</B>'s list * of pages, it creates a new PAGE, loads the file in it and returns * a pointer on the new page. Otherwise it returns a pointer on the * existing page. * * If the filename passed is NULL, this function creates an empty, * untitled page. The name of the untitled page is build from * configuration data ('untitled-name') and a counter for uniqueness. * * The opened page becomes the current page of <B>toplevel</B>. * * \param [in] w_current The toplevel environment. * \param [in] filename The name of the file to open or NULL for a blank page. * \returns A pointer on the new page. * * \bug This code should check to make sure any untitled filename * does not conflict with a file on disk. */ PAGE* x_window_open_page (GSCHEM_TOPLEVEL *w_current, const gchar *filename) { TOPLEVEL *toplevel = w_current->toplevel; PAGE *old_current, *page; gchar *fn; g_return_val_if_fail (toplevel != NULL, NULL); /* Generate untitled filename if none was specified */ if (filename == NULL) { gchar *cwd, *tmp; cwd = g_get_current_dir (); tmp = g_strdup_printf ("%s_%d.sch", toplevel->untitled_name, ++w_current->num_untitled); fn = g_build_filename (cwd, tmp, NULL); g_free(cwd); g_free(tmp); } else { fn = g_strdup (filename); } /* Return existing page if it is already loaded */ page = s_page_search (toplevel, fn); if ( page != NULL ) { g_free(fn); return page; } old_current = toplevel->page_current; page = s_page_new (toplevel, fn); s_page_goto (toplevel, page); /* Load from file if necessary, otherwise just print a message */ if (filename != NULL) { GError *err = NULL; if (!quiet_mode) s_log_message (_("Loading schematic [%s]\n"), fn); if (!f_open (toplevel, page, (gchar *) fn, &err)) { GtkWidget *dialog; g_warning ("%s\n", err->message); dialog = gtk_message_dialog_new (GTK_WINDOW (w_current->main_window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", err->message); gtk_window_set_title (GTK_WINDOW (dialog), _("Failed to load file")); gtk_dialog_run (GTK_DIALOG (dialog)); gtk_widget_destroy (dialog); g_error_free (err); } else { gtk_recent_manager_add_item (recent_manager, g_filename_to_uri(fn, NULL, NULL)); } } else { if (!quiet_mode) s_log_message (_("New file [%s]\n"), toplevel->page_current->page_filename); } if (scm_is_false (scm_hook_empty_p (new_page_hook))) scm_run_hook (new_page_hook, scm_cons (g_make_page_smob (toplevel, page), SCM_EOL)); a_zoom_extents (w_current, s_page_objects (toplevel->page_current), A_PAN_DONT_REDRAW); o_undo_savestate (w_current, UNDO_ALL); if ( old_current != NULL ) s_page_goto (toplevel, old_current); /* This line is generally un-needed, however if some code * wants to open a page, yet not bring it to the front, it is * needed needed to add it into the page manager. Otherwise, * it will get done in x_window_set_current_page(...) */ x_pagesel_update (w_current); /* ??? */ g_free (fn); return page; }
SCM g_get_current_page(void) { return (g_make_page_smob(global_window_current->toplevel, global_window_current->toplevel->page_current)); }