#include "config.h"
#endif
+// TODO: Make these configurable
+#define MAX_TILES 1000
+
#define MAX_SHRINKFACTOR 8.0000001 /* zoom 1 viewing 8-tiles */
#define MIN_SHRINKFACTOR 0.0312499 /* zoom 32 viewing 1-tiles */
#include <math.h>
#endif
-#include "globals.h"
-#include "util.h"
-#include "coords.h"
-#include "vikcoord.h"
-#include "viktreeview.h"
-#include "vikviewport.h"
-#include "viklayer.h"
-#include "vikmapslayer.h"
-
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
+#include "viking.h"
+#include "vikmapsourcedefault.h"
+#include "maputils.h"
#include "mapcache.h"
-/* only for dialog.h -- ugh */
-#include "vikwaypoint.h"
-#include "dialog.h"
-#include "preferences.h"
-
-#include "vikstatus.h"
#include "background.h"
-
-#include "vikaggregatelayer.h"
-#include "viklayerspanel.h"
-
-#include "mapcoord.h"
-#include "terraserver.h"
-
+#include "preferences.h"
+#include "vikmapslayer.h"
#include "icons/icons.h"
/****** MAP TYPES ******/
{ 0, 255, 3, 0 }, /* alpha */
};
+static VikLayerParamData mode_default ( void ) { return VIK_LPD_UINT ( 19 ); } // OSM MapQuest maps
+static VikLayerParamData directory_default ( void )
+{
+ VikLayerParamData data;
+ data.s = g_strdup ( a_preferences_get(VIKING_PREFERENCES_NAMESPACE "maplayer_default_dir")->s );
+ return data;
+}
+static VikLayerParamData alpha_default ( void ) { return VIK_LPD_UINT ( 255 ); }
+static VikLayerParamData mapzoom_default ( void ) { return VIK_LPD_UINT ( 0 ); }
+
VikLayerParam maps_layer_params[] = {
- { "mode", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Map Type:"), VIK_LAYER_WIDGET_COMBOBOX, NULL, NULL },
- { "directory", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Maps Directory:"), VIK_LAYER_WIDGET_FOLDERENTRY },
- { "alpha", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Alpha:"), VIK_LAYER_WIDGET_HSCALE, params_scales },
- { "autodownload", VIK_LAYER_PARAM_BOOLEAN, VIK_LAYER_GROUP_NONE, N_("Autodownload maps:"), VIK_LAYER_WIDGET_CHECKBUTTON },
- { "mapzoom", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Zoom Level:"), VIK_LAYER_WIDGET_COMBOBOX, params_mapzooms, NULL },
+ { VIK_LAYER_MAPS, "mode", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Map Type:"), VIK_LAYER_WIDGET_COMBOBOX, NULL, NULL, NULL, mode_default },
+ { VIK_LAYER_MAPS, "directory", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Maps Directory:"), VIK_LAYER_WIDGET_FOLDERENTRY, NULL, NULL, NULL, directory_default },
+ { VIK_LAYER_MAPS, "alpha", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Alpha:"), VIK_LAYER_WIDGET_HSCALE, params_scales, NULL,
+ N_("Control the Alpha value for transparency effects"), alpha_default },
+ { VIK_LAYER_MAPS, "autodownload", VIK_LAYER_PARAM_BOOLEAN, VIK_LAYER_GROUP_NONE, N_("Autodownload maps:"), VIK_LAYER_WIDGET_CHECKBUTTON, NULL, NULL, NULL, vik_lpd_true_default },
+ { VIK_LAYER_MAPS, "adlonlymissing", VIK_LAYER_PARAM_BOOLEAN, VIK_LAYER_GROUP_NONE, N_("Autodownload Only Gets Missing Maps:"), VIK_LAYER_WIDGET_CHECKBUTTON, NULL, NULL,
+ N_("Using this option avoids attempting to update already acquired tiles. This can be useful if you want to restrict the network usage, without having to resort to manual control. Only applies when 'Autodownload Maps' is on."), vik_lpd_false_default },
+ { VIK_LAYER_MAPS, "mapzoom", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Zoom Level:"), VIK_LAYER_WIDGET_COMBOBOX, params_mapzooms, NULL,
+ N_("Determines the method of displaying map tiles for the current zoom level. 'Viking Zoom Level' uses the best matching level, otherwise setting a fixed value will always use map tiles of the specified value regardless of the actual zoom level."),
+ mapzoom_default },
};
-enum { PARAM_MAPTYPE=0, PARAM_CACHE_DIR, PARAM_ALPHA, PARAM_AUTODOWNLOAD, PARAM_MAPZOOM, NUM_PARAMS };
+enum {
+ PARAM_MAPTYPE=0,
+ PARAM_CACHE_DIR,
+ PARAM_ALPHA,
+ PARAM_AUTODOWNLOAD,
+ PARAM_ONLYMISSING,
+ PARAM_MAPZOOM,
+ NUM_PARAMS
+};
static VikToolInterface maps_tools[] = {
- { N_("Maps Download"), (VikToolConstructorFunc) maps_layer_download_create, NULL, NULL, NULL,
- (VikToolMouseFunc) maps_layer_download_click, NULL, (VikToolMouseFunc) maps_layer_download_release,
- (VikToolKeyFunc) NULL, GDK_CURSOR_IS_PIXMAP, &cursor_mapdl_pixbuf },
+ { { "MapsDownload", "vik-icon-Maps Download", N_("_Maps Download"), NULL, N_("Maps Download"), 0 },
+ (VikToolConstructorFunc) maps_layer_download_create,
+ NULL,
+ NULL,
+ NULL,
+ (VikToolMouseFunc) maps_layer_download_click,
+ NULL,
+ (VikToolMouseFunc) maps_layer_download_release,
+ NULL,
+ FALSE,
+ GDK_CURSOR_IS_PIXMAP, &cursor_mapdl_pixbuf },
};
VikLayerInterface vik_maps_layer_interface = {
+ "Map",
N_("Map"),
+ "<control><shift>M",
&vikmapslayer_pixbuf,
maps_tools,
gdouble xmapzoom, ymapzoom;
gboolean autodownload;
+ gboolean adl_only_missing;
VikCoord *last_center;
gdouble last_xmpp;
gdouble last_ympp;
DOWNLOAD_OR_REFRESH }; /* download missing maps and refresh cache */
static VikLayerParam prefs[] = {
- { VIKING_PREFERENCES_NAMESPACE "maplayer_default_dir", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Default maplayer directory:"), VIK_LAYER_WIDGET_FOLDERENTRY, NULL, NULL },
+ { VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_NAMESPACE "maplayer_default_dir", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Default map layer directory:"), VIK_LAYER_WIDGET_FOLDERENTRY, NULL, NULL, N_("Choose a directory to store cached Map tiles for this layer") },
};
void maps_layer_init ()
params_maptypes[index] = g_strdup (label);
}
+/**
+ * maps_layer_register_map_source:
+ * @map: the new VikMapSource
+ *
+ * Register a new VikMapSource.
+ * Override existing one (equality of id).
+ */
void maps_layer_register_map_source ( VikMapSource *map )
{
g_assert(map != NULL);
/******** CACHE DIR STUFF ***************/
/****************************************/
+#define DIRECTDIRACCESS "%s%d" G_DIR_SEPARATOR_S "%d" G_DIR_SEPARATOR_S "%d%s"
#define DIRSTRUCTURE "%st%ds%dz%d" G_DIR_SEPARATOR_S "%d" G_DIR_SEPARATOR_S "%d"
#define MAPS_CACHE_DIR maps_layer_default_dir()
}
case PARAM_ALPHA: if ( data.u <= 255 ) vml->alpha = data.u; break;
case PARAM_AUTODOWNLOAD: vml->autodownload = data.b; break;
+ case PARAM_ONLYMISSING: vml->adl_only_missing = data.b; break;
case PARAM_MAPZOOM: if ( data.u < NUM_MAPZOOMS ) {
vml->mapzoom_id = data.u;
vml->xmapzoom = __mapzooms_x [data.u];
VikLayerParamData rv;
switch ( id )
{
- case PARAM_CACHE_DIR: rv.s = vml->cache_dir ? vml->cache_dir : ""; break;
+ case PARAM_CACHE_DIR:
+ {
+ gboolean set = FALSE;
+ /* Only save a blank when the map cache location equals the default
+ On reading in, when it is blank then the default is reconstructed
+ Since the default changes dependent on the user and OS, it means the resultant file is more portable */
+ if ( is_file_operation && vml->cache_dir && strcmp ( vml->cache_dir, MAPS_CACHE_DIR ) == 0 ) {
+ rv.s = "";
+ set = TRUE;
+ }
+ else if ( is_file_operation ) {
+ if ( a_vik_get_file_ref_format() == VIK_FILE_REF_FORMAT_RELATIVE ) {
+ gchar *cwd = g_get_current_dir();
+ if ( cwd ) {
+ rv.s = file_GetRelativeFilename ( cwd, vml->cache_dir );
+ if ( !rv.s ) rv.s = "";
+ set = TRUE;
+ }
+ }
+ }
+ if ( !set )
+ rv.s = vml->cache_dir ? vml->cache_dir : "";
+ break;
+ }
case PARAM_MAPTYPE: rv.u = map_index_to_uniq_id ( vml->maptype ); break;
case PARAM_ALPHA: rv.u = vml->alpha; break;
case PARAM_AUTODOWNLOAD: rv.u = vml->autodownload; break;
+ case PARAM_ONLYMISSING: rv.u = vml->adl_only_missing; break;
case PARAM_MAPZOOM: rv.u = vml->mapzoom_id; break;
}
return rv;
static VikMapsLayer *maps_layer_new ( VikViewport *vvp )
{
- int idx;
VikMapsLayer *vml = VIK_MAPS_LAYER ( g_object_new ( VIK_MAPS_LAYER_TYPE, NULL ) );
- vik_layer_init ( VIK_LAYER(vml), VIK_LAYER_MAPS );
- idx = map_uniq_id_to_index(19); /* 19 is id for OSM MapQuest maps */
- vml->maptype = (idx < NUM_MAP_TYPES) ? idx : 0;
- vml->alpha = 255;
- vml->mapzoom_id = 0;
+ vik_layer_set_type ( VIK_LAYER(vml), VIK_LAYER_MAPS );
+
+ vik_layer_set_defaults ( VIK_LAYER(vml), vvp );
+
vml->dl_tool_x = vml->dl_tool_y = -1;
- maps_layer_set_cache_dir ( vml, NULL );
- vml->autodownload = FALSE;
vml->last_center = NULL;
vml->last_xmpp = 0.0;
vml->last_ympp = 0.0;
{
GdkPixbuf *tmp;
guint16 width = gdk_pixbuf_get_width(pixbuf), height = gdk_pixbuf_get_height(pixbuf);
- tmp = gdk_pixbuf_scale_simple(pixbuf, ceil(width * xshrinkfactor), ceil(height * yshrinkfactor), GDK_INTERP_NEAREST);
+ tmp = gdk_pixbuf_scale_simple(pixbuf, ceil(width * xshrinkfactor), ceil(height * yshrinkfactor), GDK_INTERP_BILINEAR);
g_object_unref ( G_OBJECT(pixbuf) );
return tmp;
}
mode, mapcoord->scale, vml->alpha, xshrinkfactor, yshrinkfactor );
if ( ! pixbuf ) {
- g_snprintf ( filename_buf, buf_len, DIRSTRUCTURE,
- vml->cache_dir, mode,
- mapcoord->scale, mapcoord->z, mapcoord->x, mapcoord->y );
+ if ( vik_map_source_is_direct_file_access (MAPS_LAYER_NTH_TYPE(vml->maptype)) )
+ g_snprintf ( filename_buf, buf_len, DIRECTDIRACCESS,
+ vml->cache_dir, (17 - mapcoord->scale), mapcoord->x, mapcoord->y, ".png" );
+ else
+ g_snprintf ( filename_buf, buf_len, DIRSTRUCTURE,
+ vml->cache_dir, mode,
+ mapcoord->scale, mapcoord->z, mapcoord->x, mapcoord->y );
+
if ( g_file_test ( filename_buf, G_FILE_TEST_EXISTS ) == TRUE)
{
GError *gx = NULL;
return pixbuf;
}
-gboolean should_start_autodownload(VikMapsLayer *vml, VikViewport *vvp)
+static gboolean should_start_autodownload(VikMapsLayer *vml, VikViewport *vvp)
{
const VikCoord *center = vik_viewport_get_center ( vvp );
/* D'n'D pan in action: do not download */
return FALSE;
+ // TEMPORARY HACK
+ // Prevent requests for downloading tiles at Zoom Level 19 and above for most map types
+ // Allow MapQuest Zoom Level up to 19
+ // TODO: This should be made a property of the map source and then use that value
+ gdouble xzoom = vik_viewport_get_xmpp ( vvp );
+ if ( (vml->maptype != 19 && map_utils_mpp_to_scale (xzoom) < -1) || (vml->maptype == 19 && map_utils_mpp_to_scale (xzoom) < -2) )
+ return FALSE;
+
if (vml->last_center == NULL) {
VikCoord *new_center = g_malloc(sizeof(VikCoord));
*new_center = *center;
gdouble xzoom = vik_viewport_get_xmpp ( vvp );
gdouble yzoom = vik_viewport_get_ympp ( vvp );
gdouble xshrinkfactor = 1.0, yshrinkfactor = 1.0;
- gdouble existence_only = FALSE;
+ gboolean existence_only = FALSE;
if ( vml->xmapzoom && (vml->xmapzoom != xzoom || vml->ymapzoom != yzoom) ) {
xshrinkfactor = vml->xmapzoom / xzoom;
yzoom = vml->xmapzoom;
if ( ! (xshrinkfactor > MIN_SHRINKFACTOR && xshrinkfactor < MAX_SHRINKFACTOR &&
yshrinkfactor > MIN_SHRINKFACTOR && yshrinkfactor < MAX_SHRINKFACTOR ) ) {
- if ( xshrinkfactor > REAL_MIN_SHRINKFACTOR && yshrinkfactor > REAL_MIN_SHRINKFACTOR )
+ if ( xshrinkfactor > REAL_MIN_SHRINKFACTOR && yshrinkfactor > REAL_MIN_SHRINKFACTOR ) {
+ g_debug ( "%s: existence_only due to SHRINKFACTORS", __FUNCTION__ );
existence_only = TRUE;
+ }
else {
g_warning ( _("Cowardly refusing to draw tiles or existence of tiles beyond %d zoom out factor"), (int)( 1.0/REAL_MIN_SHRINKFACTOR));
return;
gint xx, yy, width, height;
GdkPixbuf *pixbuf;
+ // Prevent the program grinding to a halt if trying to deal with thousands of tiles
+ // which can happen when using a small fixed zoom level and viewing large areas.
+ // Also prevents very large number of tile download requests
+ gint tiles = (xmax-xmin) * (ymax-ymin);
+ if ( tiles > MAX_TILES ) {
+ g_debug ( "%s: existence_only due to wanting too many tiles (%d)", __FUNCTION__, tiles );
+ existence_only = TRUE;
+ }
+
guint max_path_len = strlen(vml->cache_dir) + 40;
gchar *path_buf = g_malloc ( max_path_len * sizeof(char) );
if ( (!existence_only) && vml->autodownload && should_start_autodownload(vml, vvp)) {
g_debug("%s: Starting autodownload", __FUNCTION__);
- if ( vik_map_source_supports_download_only_new (map) )
+ if ( !vml->adl_only_missing && vik_map_source_supports_download_only_new (map) )
// Try to download newer tiles
start_download_thread ( vml, vvp, ul, br, REDOWNLOAD_NEW );
else
gdouble xx, yy; gint xx_tmp, yy_tmp;
gint base_yy, xend, yend;
- GdkGC *black_gc = GTK_WIDGET(vvp)->style->black_gc;
-
xend = (xinc == 1) ? (xmax+1) : (xmin-1);
yend = (yinc == 1) ? (ymax+1) : (ymin-1);
ulm.y = y;
if ( existence_only ) {
- g_snprintf ( path_buf, max_path_len, DIRSTRUCTURE,
- vml->cache_dir, mode,
- ulm.scale, ulm.z, ulm.x, ulm.y );
+ if ( vik_map_source_is_direct_file_access (MAPS_LAYER_NTH_TYPE(vml->maptype)) )
+ g_snprintf ( path_buf, max_path_len, DIRECTDIRACCESS,
+ vml->cache_dir, (17 - ulm.scale), ulm.x, ulm.y, ".png" );
+ else
+ g_snprintf ( path_buf, max_path_len, DIRSTRUCTURE,
+ vml->cache_dir, mode,
+ ulm.scale, ulm.z, ulm.x, ulm.y );
if ( g_file_test ( path_buf, G_FILE_TEST_EXISTS ) == TRUE ) {
+ GdkGC *black_gc = gtk_widget_get_style(GTK_WIDGET(vvp))->black_gc;
vik_viewport_draw_line ( vvp, black_gc, xx+tilesize_x_ceil, yy, xx, yy+tilesize_y_ceil );
}
} else {
a_mapcache_remove_all_shrinkfactors ( x, y, mdi->mapcoord.z, vik_map_source_get_uniq_id(MAPS_LAYER_NTH_TYPE(mdi->maptype)), mdi->mapcoord.scale );
if (mdi->refresh_display && mdi->map_layer_alive) {
/* TODO: check if it's on visible area */
- vik_layer_emit_update ( VIK_LAYER(mdi->vml), TRUE ); // Yes update display from background
+ vik_layer_emit_update ( VIK_LAYER(mdi->vml) ); // NB update display from background
}
g_mutex_unlock(mdi->mutex);
mdi->mapcoord.x = mdi->mapcoord.y = 0; /* we're temporarily between downloads */
gdouble yzoom = vml->ymapzoom ? vml->ymapzoom : vik_viewport_get_ympp ( vvp );
MapCoord ulm, brm;
VikMapSource *map = MAPS_LAYER_NTH_TYPE(vml->maptype);
+
+ // Don't ever attempt download on direct access
+ if ( vik_map_source_is_direct_file_access ( map ) )
+ return;
+
if ( vik_map_source_coord_to_mapcoord ( map, ul, xzoom, yzoom, &ulm )
&& vik_map_source_coord_to_mapcoord ( map, br, xzoom, yzoom, &brm ) )
{
}
}
-void maps_layer_download_section_without_redraw( VikMapsLayer *vml, VikViewport *vvp, VikCoord *ul, VikCoord *br, gdouble zoom)
+void maps_layer_download_section ( VikMapsLayer *vml, VikViewport *vvp, VikCoord *ul, VikCoord *br, gdouble zoom)
{
MapCoord ulm, brm;
VikMapSource *map = MAPS_LAYER_NTH_TYPE(vml->maptype);
+ // Don't ever attempt download on direct access
+ if ( vik_map_source_is_direct_file_access ( map ) )
+ return;
+
if (!vik_map_source_coord_to_mapcoord(map, ul, zoom, zoom, &ulm)
|| !vik_map_source_coord_to_mapcoord(map, br, zoom, zoom, &brm)) {
g_warning("%s() coord_to_mapcoord() failed", __PRETTY_FUNCTION__);
mdi->vvp = vvp;
mdi->map_layer_alive = TRUE;
mdi->mutex = g_mutex_new();
- mdi->refresh_display = FALSE;
+ mdi->refresh_display = TRUE;
mdi->cache_dir = g_strdup ( vml->cache_dir );
mdi->maxlen = strlen ( vml->cache_dir ) + 40;
start_download_thread ( vml, vml->redownload_vvp, &(vml->redownload_ul), &(vml->redownload_br), REDOWNLOAD_NEW );
}
+/**
+ * Display a simple dialog with information about this particular map tile
+ */
+static void maps_layer_tile_info ( VikMapsLayer *vml )
+{
+ VikMapSource *map = MAPS_LAYER_NTH_TYPE(vml->maptype);
+
+ gdouble xzoom = vml->xmapzoom ? vml->xmapzoom : vik_viewport_get_xmpp ( vml->redownload_vvp );
+ gdouble yzoom = vml->ymapzoom ? vml->ymapzoom : vik_viewport_get_ympp ( vml->redownload_vvp );
+ MapCoord ulm;
+
+ if ( !vik_map_source_coord_to_mapcoord ( map, &(vml->redownload_ul), xzoom, yzoom, &ulm ) )
+ return;
+
+ gchar *filename = NULL;
+ gchar *message = NULL;
+ gchar *source = NULL;
+
+ if ( vik_map_source_is_direct_file_access ( map ) ) {
+ filename = g_strdup_printf ( DIRECTDIRACCESS, vml->cache_dir, ulm.scale, ulm.x, ulm.y, ".png" );
+ source = g_strconcat ( "file://", filename, NULL );
+ }
+ else {
+ filename = g_strdup_printf ( DIRSTRUCTURE, vml->cache_dir, vik_map_source_get_uniq_id(map), ulm.scale, ulm.z, ulm.x, ulm.y );
+ source = g_strdup_printf ( "http://%s%s",
+ vik_map_source_default_get_hostname ( VIK_MAP_SOURCE_DEFAULT(map) ),
+ vik_map_source_default_get_uri ( VIK_MAP_SOURCE_DEFAULT(map), &ulm ) );
+ }
+
+ if ( g_file_test ( filename, G_FILE_TEST_EXISTS ) ) {
+
+ // Get some timestamp information of the tile
+ struct stat stat_buf;
+ if ( g_stat ( filename, &stat_buf ) == 0 ) {
+ gchar time_buf[64];
+ strftime ( time_buf, sizeof(time_buf), "%c", gmtime((const time_t *)&stat_buf.st_mtime) );
+ message = g_strdup_printf ( _("\nSource: %s\n\nTile File: %s\nTile File Timestamp: %s"), source, filename, time_buf );
+ }
+ }
+ else
+ message = g_strdup_printf ( _("Source: %s\n\nNo Tile File!"), source );
+
+ // Show the info
+ a_dialog_info_msg ( VIK_GTK_WINDOW_FROM_LAYER(vml), message );
+
+ g_free ( message );
+ g_free ( source );
+ g_free ( filename );
+}
+
static gboolean maps_layer_download_release ( VikMapsLayer *vml, GdkEventButton *event, VikViewport *vvp )
{
if (!vml || vml->vl.type != VIK_LAYER_MAPS)
item = gtk_menu_item_new_with_mnemonic ( _("Redownload _All Map(s)") );
g_signal_connect_swapped ( G_OBJECT(item), "activate", G_CALLBACK(maps_layer_redownload_all), vml );
gtk_menu_shell_append ( GTK_MENU_SHELL(vml->dl_right_click_menu), item );
+
+ item = gtk_image_menu_item_new_with_mnemonic ( _("_Show Tile Information") );
+ gtk_image_menu_item_set_image ( (GtkImageMenuItem*)item, gtk_image_new_from_stock (GTK_STOCK_INFO, GTK_ICON_SIZE_MENU) );
+ g_signal_connect_swapped ( G_OBJECT(item), "activate", G_CALLBACK(maps_layer_tile_info), vml );
+ gtk_menu_shell_append (GTK_MENU_SHELL(vml->dl_right_click_menu), item);
}
gtk_menu_popup ( vml->dl_right_click_menu, NULL, NULL, NULL, NULL, event->button, event->time );
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_widget_show ( item );
}
+
+/**
+ * Enable downloading maps of the current screen area either 'new' or 'everything'
+ */
+void vik_maps_layer_download ( VikMapsLayer *vml, VikViewport *vvp, gboolean only_new )
+{
+ if ( !vml ) return;
+ if ( !vvp ) return;
+
+ static gpointer pass_along[2];
+ pass_along[0] = vml;
+ pass_along[1] = vvp;
+
+ if ( only_new )
+ // Get only new maps
+ maps_layer_download_new_onscreen_maps ( pass_along );
+ else
+ // Redownload everything
+ maps_layer_redownload_all_onscreen_maps ( pass_along );
+}