/** * a_babel_convert_from: * @vt: The TRW layer to place data into. Duplicate items will be overwritten. * @process_options: The options to control the appropriate processing function. See #ProcessOptions for more detail * @cb: Optional callback function. Same usage as in a_babel_convert(). * @user_data: passed along to cb * @download_options: If downloading from a URL use these options (may be NULL) * * Loads data into a trw layer from a file, using gpsbabel. This routine is synchronous; * that is, it will block the calling program until the conversion is done. To avoid blocking, call * this routine from a worker thread. * * Returns: %TRUE on success */ gboolean a_babel_convert_from ( VikTrwLayer *vt, ProcessOptions *process_options, BabelStatusFunc cb, gpointer user_data, DownloadFileOptions *download_options ) { if ( !process_options ) return FALSE; if ( process_options->url ) return a_babel_convert_from_url_filter ( vt, process_options->url, process_options->input_file_type, process_options->babel_filters, cb, user_data, download_options ); if ( process_options->babelargs ) return a_babel_convert_from_filter ( vt, process_options->babelargs, process_options->filename, process_options->babel_filters, cb, user_data, download_options ); if ( process_options->shell_command ) return a_babel_convert_from_shellcommand ( vt, process_options->shell_command, process_options->input_file_type, cb, user_data, download_options ); return FALSE; }
/** * a_babel_convert_from_url_or_shell: * @vt: The #VikTrwLayer where to insert the collected data * @url: the URL to fetch * @cb: Optional callback function. Same usage as in a_babel_convert(). * @user_data: passed along to cb * @options: download options. Maybe NULL. * * Download the file pointed by the URL and optionally uses GPSBabel to convert from input_file_type. * If input_file_type is %NULL, doesn't use GPSBabel. Input must be GPX. * * Returns: %TRUE on successful invocation of GPSBabel or read of the GPX * */ gboolean a_babel_convert_from_url_or_shell ( VikTrwLayer *vt, const char *input, const char *input_type, BabelStatusFunc cb, gpointer user_data, DownloadMapOptions *options ) { /* Check nature of input */ gboolean isUrl = FALSE; int i = 0; for (i = 0 ; PROTOS[i] != NULL ; i++) { const gchar *proto = PROTOS[i]; if (strncmp (input, proto, strlen(proto)) == 0) { /* Procotol matches: save result */ isUrl = TRUE; } } /* Do the job */ if (isUrl) return a_babel_convert_from_url (vt, input, input_type, cb, user_data, options); else return a_babel_convert_from_shellcommand (vt, input, input_type, cb, user_data, options); }
/* this routine is the worker thread. there is only one simultaneous download allowed */ static void get_from_anything ( w_and_interface_t *wi ) { gchar *cmd = wi->cmd; gchar *extra = wi->extra; gboolean result = TRUE; VikTrwLayer *vtl = NULL; gboolean creating_new_layer = TRUE; acq_dialog_widgets_t *w = wi->w; VikDataSourceInterface *source_interface = wi->w->source_interface; g_free ( wi ); wi = NULL; gdk_threads_enter(); if (source_interface->mode == VIK_DATASOURCE_ADDTOLAYER) { VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp ); if ( IS_VIK_TRW_LAYER(current_selected) ) { vtl = VIK_TRW_LAYER(current_selected); creating_new_layer = FALSE; } } if ( creating_new_layer ) { vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, NULL, FALSE ) ); vik_layer_rename ( VIK_LAYER ( vtl ), _(source_interface->layer_title) ); gtk_label_set_text ( GTK_LABEL(w->status), _("Working...") ); } gdk_threads_leave(); switch ( source_interface->type ) { case VIK_DATASOURCE_GPSBABEL_DIRECT: result = a_babel_convert_from (vtl, cmd, (BabelStatusFunc) progress_func, extra, w); break; case VIK_DATASOURCE_URL: result = a_babel_convert_from_url (vtl, cmd, extra, (BabelStatusFunc) progress_func, w); break; case VIK_DATASOURCE_SHELL_CMD: result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) progress_func, w); break; default: g_critical("Houston, we've had a problem."); } g_free ( cmd ); g_free ( extra ); if (!result) { gdk_threads_enter(); gtk_label_set_text ( GTK_LABEL(w->status), _("Error: acquisition failed.") ); if ( creating_new_layer ) g_object_unref ( G_OBJECT ( vtl ) ); gdk_threads_leave(); } else { gdk_threads_enter(); if (w->ok) { gtk_label_set_text ( GTK_LABEL(w->status), _("Done.") ); if ( creating_new_layer ) { /* Only create the layer if it actually contains anything useful */ if ( g_hash_table_size (vik_trw_layer_get_tracks(vtl)) || g_hash_table_size (vik_trw_layer_get_waypoints(vtl)) ) vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(w->vlp), VIK_LAYER(vtl)); else gtk_label_set_text ( GTK_LABEL(w->status), _("No data.") ); } /* View this data if available and is desired */ if ( vtl && source_interface->autoview ) { vik_trw_layer_auto_set_view ( vtl, vik_layers_panel_get_viewport(w->vlp) ); vik_layers_panel_emit_update (w->vlp); } if ( source_interface->keep_dialog_open ) { gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT, TRUE ); gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_REJECT, FALSE ); } else { gtk_dialog_response ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT ); } } else { /* canceled */ if ( creating_new_layer ) g_object_unref(vtl); } } if ( source_interface->cleanup_func ) source_interface->cleanup_func ( w->user_data ); if ( w->ok ) { w->ok = FALSE; } else { g_free ( w ); } gdk_threads_leave(); g_thread_exit ( NULL ); }