/**
* Some common things to do on completion of a datasource process
* . Update layer
* . Update dialog info
* . Update main dsisplay
*/
static void on_complete_process (w_and_interface_t *wi)
{
if (wi->w->running) {
gtk_label_set_text ( GTK_LABEL(wi->w->status), _("Done.") );
if ( wi->creating_new_layer ) {
/* Only create the layer if it actually contains anything useful */
// TODO: create function for this operation to hide detail:
if ( ! vik_trw_layer_is_empty ( wi->vtl ) ) {
vik_layer_post_read ( VIK_LAYER(wi->vtl), wi->w->vvp, TRUE );
vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(wi->w->vlp), VIK_LAYER(wi->vtl));
}
else
gtk_label_set_text ( GTK_LABEL(wi->w->status), _("No data.") );
}
/* View this data if available and is desired */
if ( wi->vtl && wi->w->source_interface->autoview ) {
vik_trw_layer_auto_set_view ( wi->vtl, vik_layers_panel_get_viewport(wi->w->vlp) );
}
if ( wi->w->source_interface->keep_dialog_open ) {
gtk_dialog_set_response_sensitive ( GTK_DIALOG(wi->w->dialog), GTK_RESPONSE_ACCEPT, TRUE );
gtk_dialog_set_response_sensitive ( GTK_DIALOG(wi->w->dialog), GTK_RESPONSE_REJECT, FALSE );
} else {
gtk_dialog_response ( GTK_DIALOG(wi->w->dialog), GTK_RESPONSE_ACCEPT );
}
// Main display update
if ( wi->vtl )
vik_layers_panel_emit_update ( wi->w->vlp );
} else {
/* cancelled */
if ( wi->creating_new_layer )
g_object_unref(wi->vtl);
}
}
/**
* Load a single JPG into a Trackwaypoint Layer as a waypoint
*
* @top: The Aggregate layer that a new TRW layer may be created in
* @filename: The JPG filename
* @vvp: The viewport
*
* Returns: Whether the loading was a success or not
*
* If the JPG has geotag information then the waypoint will be created with the appropriate position.
* Otherwise the waypoint will be positioned at the current screen center.
* If a TRW layer is already selected the waypoint will be created in that layer.
*/
gboolean a_jpg_load_file ( VikAggregateLayer *top, const gchar *filename, VikViewport *vvp )
{
gboolean auto_zoom = TRUE;
VikWindow *vw = (VikWindow *)(VIK_GTK_WINDOW_FROM_LAYER(VIK_LAYER(top)));
VikLayersPanel *vlp = vik_window_layers_panel ( vw );
// Auto load into TrackWaypoint layer if one is selected
VikLayer *vtl = vik_layers_panel_get_selected ( vlp );
gboolean create_layer = FALSE;
if ( vtl == NULL || vtl->type != VIK_LAYER_TRW ) {
// Create layer if necessary
vtl = vik_layer_create ( VIK_LAYER_TRW, vvp, FALSE );
vik_layer_rename ( vtl, a_file_basename ( filename ) );
create_layer = TRUE;
}
gchar *name = NULL;
VikWaypoint *wp = NULL;
#ifdef VIK_CONFIG_GEOTAG
wp = a_geotag_create_waypoint_from_file ( filename, vik_viewport_get_coord_mode (vvp), &name );
#endif
if ( wp ) {
// Create name if geotag method didn't return one
if ( !name )
name = g_strdup ( a_file_basename ( filename ) );
vik_trw_layer_filein_add_waypoint ( VIK_TRW_LAYER(vtl), name, wp );
g_free ( name );
}
else {
wp = vik_waypoint_new ();
wp->visible = TRUE;
vik_trw_layer_filein_add_waypoint ( VIK_TRW_LAYER(vtl), (gchar*) a_file_basename(filename), wp );
vik_waypoint_set_image ( wp, filename );
// Simply set position to the current center
wp->coord = *( vik_viewport_get_center ( vvp ) );
auto_zoom = FALSE;
}
// Complete the setup
vik_layer_post_read ( vtl, vvp, TRUE );
if ( create_layer )
vik_aggregate_layer_add_layer ( top, vtl, FALSE );
if ( auto_zoom )
vik_trw_layer_auto_set_view ( VIK_TRW_LAYER(vtl), vvp );
// ATM This routine can't fail
return TRUE;
}
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;
}
VikLoadType_t a_file_load ( VikAggregateLayer *top, VikViewport *vp, const gchar *filename_or_uri )
{
g_return_val_if_fail ( vp != NULL, LOAD_TYPE_READ_FAILURE );
char *filename = (char *)filename_or_uri;
if (strncmp(filename, "file://", 7) == 0) {
// Consider replacing this with:
// filename = g_filename_from_uri ( entry, NULL, NULL );
// Since this doesn't support URIs properly (i.e. will failure if is it has %20 characters in it)
filename = filename + 7;
g_debug ( "Loading file %s from URI %s", filename, filename_or_uri );
}
FILE *f = xfopen ( filename );
if ( ! f )
return LOAD_TYPE_READ_FAILURE;
VikLoadType_t load_answer = LOAD_TYPE_OTHER_SUCCESS;
gchar *dirpath = g_path_get_dirname ( filename );
// Attempt loading the primary file type first - our internal .vik file:
if ( check_magic ( f, VIK_MAGIC ) )
{
if ( file_read ( top, f, dirpath, vp ) )
load_answer = LOAD_TYPE_VIK_SUCCESS;
else
load_answer = LOAD_TYPE_VIK_FAILURE_NON_FATAL;
}
else if ( a_jpg_magic_check ( filename ) ) {
if ( ! a_jpg_load_file ( top, filename, vp ) )
load_answer = LOAD_TYPE_UNSUPPORTED_FAILURE;
}
else
{
// For all other file types which consist of tracks, routes and/or waypoints,
// must be loaded into a new TrackWaypoint layer (hence it be created)
gboolean success = TRUE; // Detect load failures - mainly to remove the layer created as it's not required
VikLayer *vtl = vik_layer_create ( VIK_LAYER_TRW, vp, FALSE );
vik_layer_rename ( vtl, a_file_basename ( filename ) );
// In fact both kml & gpx files start the same as they are in xml
if ( a_file_check_ext ( filename, ".kml" ) && check_magic ( f, GPX_MAGIC ) ) {
// Implicit Conversion
if ( ! ( success = a_babel_convert_from ( VIK_TRW_LAYER(vtl), "-i kml", filename, NULL, NULL, NULL ) ) ) {
load_answer = LOAD_TYPE_GPSBABEL_FAILURE;
}
}
// NB use a extension check first, as a GPX file header may have a Byte Order Mark (BOM) in it
// - which currently confuses our check_magic function
else if ( a_file_check_ext ( filename, ".gpx" ) || check_magic ( f, GPX_MAGIC ) ) {
if ( ! ( success = a_gpx_read_file ( VIK_TRW_LAYER(vtl), f ) ) ) {
load_answer = LOAD_TYPE_GPX_FAILURE;
}
}
else {
// Try final supported file type
if ( ! ( success = a_gpspoint_read_file ( VIK_TRW_LAYER(vtl), f, dirpath ) ) ) {
// Failure here means we don't know how to handle the file
load_answer = LOAD_TYPE_UNSUPPORTED_FAILURE;
}
}
g_free ( dirpath );
// Clean up when we can't handle the file
if ( ! success ) {
// free up layer
g_object_unref ( vtl );
}
else {
// Complete the setup from the successful load
vik_layer_post_read ( vtl, vp, TRUE );
vik_aggregate_layer_add_layer ( top, vtl, FALSE );
vik_trw_layer_auto_set_view ( VIK_TRW_LAYER(vtl), vp );
}
}
xfclose(f);
return load_answer;
}
/* 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 );
}
