Esempio n. 1
0
static int load_all(char *fn, buffer *buf)
{
	char *fmt = guess_file_format(fn);
	int n = fmt_index(fmt);
	if (fmt && n >= 0 && fileformats[n].load) {
		return loadmatrix(fn, buf, fmt);
	}
	n = select_from_list(_("Which format?"), loader_patterns, nloader);
	if (n < 0) return -1;
	return loadmatrix(fn, buf, loader_patterns[n]);
}
Esempio n. 2
0
static gboolean datasource_osm_my_traces_process ( VikTrwLayer *vtl, const gchar *cmd, const gchar *extra, BabelStatusFunc status_cb, acq_dialog_widgets_t *adw, DownloadMapOptions *options_unused )
{
    //datasource_osm_my_traces_t *data = (datasource_osm_my_traces_t *)adw->user_data;

    gboolean result;

    gchar *user_pass = osm_get_login();

    DownloadMapOptions options = { FALSE, FALSE, NULL, 2, NULL, user_pass }; // Allow a couple of redirects

    xml_data *xd = g_malloc ( sizeof (xml_data) );
    //xd->xpath = g_string_new ( "" );
    xd->c_cdata = g_string_new ( "" );
    xd->current_tag = tt_unknown;
    xd->current_gpx_meta_data = new_gpx_meta_data_t();
    xd->list_of_gpx_meta_data = NULL;

    gchar *tmpname = a_download_uri_to_tmp_file ( DS_OSM_TRACES_GPX_FILES, &options );
    result = read_gpx_files_metadata_xml ( tmpname, xd );
    // Test already downloaded metadata file: eg:
    //result = read_gpx_files_metadata_xml ( "/tmp/viking-download.GI47PW", xd );

    if ( tmpname ) {
        g_remove ( tmpname );
        g_free ( tmpname );
    }

    if ( ! result )
        return FALSE;

    if ( g_list_length ( xd->list_of_gpx_meta_data ) == 0 ) {
        if (!vik_datasource_osm_my_traces_interface.is_thread)
            none_found ( GTK_WINDOW(adw->vw) );
        return FALSE;
    }

    xd->list_of_gpx_meta_data = g_list_reverse ( xd->list_of_gpx_meta_data );

    set_in_current_view_property ( vtl, adw->user_data, xd->list_of_gpx_meta_data );

    if (vik_datasource_osm_my_traces_interface.is_thread) gdk_threads_enter();
    GList *selected = select_from_list ( GTK_WINDOW(adw->vw), xd->list_of_gpx_meta_data, "Select GPS Traces", "Select the GPS traces you want to add." );
    if (vik_datasource_osm_my_traces_interface.is_thread) gdk_threads_leave();

    // If passed in on an existing layer - we will create everything into that.
    //  thus with many differing gpx's - this will combine all waypoints into this single layer!
    // Hence the preference is to create multiple layers
    //  and so this creation of the layers must be managed here

    gboolean create_new_layer = ( !vtl );

    // Only update the screen on the last layer acquired
    VikTrwLayer *vtl_last = vtl;
    gboolean got_something = FALSE;

    GList *selected_iterator = selected;
    while ( selected_iterator ) {

        VikTrwLayer *vtlX = vtl;

        if ( create_new_layer ) {
            // Have data but no layer - so create one
            vtlX = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, vik_window_viewport(adw->vw), NULL, FALSE ) );
            if ( ((gpx_meta_data_t*)selected_iterator->data)->name )
                vik_layer_rename ( VIK_LAYER ( vtlX ), ((gpx_meta_data_t*)selected_iterator->data)->name );
            else
                vik_layer_rename ( VIK_LAYER ( vtlX ), _("My OSM Traces") );
            vik_aggregate_layer_add_layer ( vik_layers_panel_get_top_layer (adw->vlp), VIK_LAYER(vtlX) );
        }

        result = FALSE;
        gint gpx_id = ((gpx_meta_data_t*)selected_iterator->data)->id;
        if ( gpx_id ) {
            gchar *url = g_strdup_printf ( DS_OSM_TRACES_GPX_URL_FMT, gpx_id );

            result = a_babel_convert_from_url ( vtlX, url, "gpx", status_cb, adw, &options );
            // TODO investigate using a progress bar:
            // http://developer.gnome.org/gtk/2.24/GtkProgressBar.html

            got_something = got_something || result;
            // TODO feedback to UI to inform which traces failed
            if ( !result )
                g_warning ( _("Unable to get trace: %s"), url );
        }

        if ( result ) {
            // Move to area of the track
            vik_trw_layer_auto_set_view ( vtlX, vik_window_viewport(adw->vw) );
            vik_layer_post_read ( VIK_LAYER(vtlX), vik_window_viewport(adw->vw), TRUE );
            vtl_last = vtlX;
        }
        else if ( create_new_layer ) {
            // Layer not needed as no data has been acquired
            g_object_unref ( vtlX );
        }

        selected_iterator = g_list_next ( selected_iterator );
    }

    // Free memory
    if ( xd->current_gpx_meta_data )
        free_gpx_meta_data ( xd->current_gpx_meta_data, NULL );
    g_free ( xd->current_gpx_meta_data );
    free_gpx_meta_data_list ( xd->list_of_gpx_meta_data );
    free_gpx_meta_data_list ( selected );
    g_free ( xd );
    g_free ( user_pass );

    // Would prefer to keep the update in acquire.c,
    //  however since we may create the layer - need to do the update here
    if ( got_something )
        vik_layer_emit_update ( VIK_LAYER(vtl_last) );

    // ATM The user is only informed if all getting *all* of the traces failed
    if ( selected )
        result = got_something;
    else
        // Process was cancelled but need to return that it proceeded as expected
        result = TRUE;

    return result;
}