* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
*
* Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
+ * Copyright (C) 2013, Rob Norris <rw_norris@hotmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
#include <string.h>
#include <glib/gprintf.h>
+#include <glib/gi18n.h>
#include "viking.h"
#include "babel.h"
#include "gpx.h"
#include "acquire.h"
+#include "util.h"
+
+/************************ FILTER LIST *******************/
+// extern VikDataSourceInterface vik_datasource_gps_interface;
+
+/*** Input is TRWLayer ***/
+extern VikDataSourceInterface vik_datasource_bfilter_simplify_interface;
+extern VikDataSourceInterface vik_datasource_bfilter_compress_interface;
+extern VikDataSourceInterface vik_datasource_bfilter_dup_interface;
+
+/*** Input is a track and a TRWLayer ***/
+extern VikDataSourceInterface vik_datasource_bfilter_polygon_interface;
+extern VikDataSourceInterface vik_datasource_bfilter_exclude_polygon_interface;
+
+/*** Input is a track ***/
+
+const VikDataSourceInterface *filters[] = {
+ &vik_datasource_bfilter_simplify_interface,
+ &vik_datasource_bfilter_compress_interface,
+ &vik_datasource_bfilter_dup_interface,
+ &vik_datasource_bfilter_polygon_interface,
+ &vik_datasource_bfilter_exclude_polygon_interface,
+};
+
+const guint N_FILTERS = sizeof(filters) / sizeof(filters[0]);
+
+VikTrack *filter_track = NULL;
+
+/********************************************************/
/* passed along to worker thread */
typedef struct {
acq_dialog_widgets_t *w;
- VikDataSourceInterface *interface;
gchar *cmd;
gchar *extra;
+ gboolean creating_new_layer;
+ VikTrwLayer *vtl;
+ gpointer options;
} w_and_interface_t;
-extern VikDataSourceInterface vik_datasource_gps_interface;
-extern VikDataSourceInterface vik_datasource_google_interface;
/*********************************************************
- * Definitions and routines for acquiring data from GPS
+ * Definitions and routines for acquiring data from Data Sources in general
*********************************************************/
+static void progress_func ( BabelProgressCode c, gpointer data, acq_dialog_widgets_t *w )
+{
+ if ( w->source_interface->is_thread ) {
+ gdk_threads_enter ();
+ if ( !w->running ) {
+ if ( w->source_interface->cleanup_func )
+ w->source_interface->cleanup_func ( w->user_data );
+ gdk_threads_leave ();
+ g_thread_exit ( NULL );
+ }
+ gdk_threads_leave ();
+ }
+
+ if ( w->source_interface->progress_func )
+ w->source_interface->progress_func ( c, data, w );
+}
+
+/**
+ * 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), TRUE );
+ }
+ else
+ gtk_label_set_text ( GTK_LABEL(wi->w->status), _("No data.") );
+ }
+ 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_layer_post_read ( VIK_LAYER(wi->vtl), wi->w->vvp, TRUE );
+ // View this data if desired - must be done after post read (so that the bounds are known)
+ if ( wi->w->source_interface->autoview ) {
+ vik_trw_layer_auto_set_view ( wi->vtl, vik_layers_panel_get_viewport(wi->w->vlp) );
+ }
+ vik_layers_panel_emit_update ( wi->w->vlp );
+ }
+ } else {
+ /* cancelled */
+ if ( wi->creating_new_layer )
+ g_object_unref(wi->vtl);
+ }
+}
+
/* this routine is the worker thread. there is only one simultaneous download allowed */
static void get_from_anything ( w_and_interface_t *wi )
{
- VikTrwLayer *vtl;
-
gchar *cmd = wi->cmd;
gchar *extra = wi->extra;
- gboolean result;
-
- acq_dialog_widgets_t *w = wi->w;
- VikDataSourceInterface *interface = wi->interface;
- g_free ( wi );
+ gboolean result = TRUE;
- gdk_threads_enter();
- vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, NULL, FALSE ) );
- vik_layer_rename ( VIK_LAYER ( vtl ), interface->layer_title );
- gtk_label_set_text ( GTK_LABEL(w->status), "Working..." );
- gdk_threads_leave();
+ VikDataSourceInterface *source_interface = wi->w->source_interface;
- if ( interface->type == VIK_DATASOURCE_GPSBABEL_DIRECT )
- result = a_babel_convert_from (vtl, cmd, (BabelStatusFunc) interface->progress_func, extra, w);
- else
- result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) interface->progress_func, w);
+ if ( source_interface->process_func )
+ result = source_interface->process_func ( wi->vtl, cmd, extra, (BabelStatusFunc) progress_func, wi->w, wi->options );
g_free ( cmd );
g_free ( extra );
+ g_free ( wi->options );
- if (!result) {
+ if (wi->w->running && !result) {
gdk_threads_enter();
- gtk_label_set_text ( GTK_LABEL(w->status), "Error: couldn't find gpsbabel." );
+ gtk_label_set_text ( GTK_LABEL(wi->w->status), _("Error: acquisition failed.") );
+ if ( wi->creating_new_layer )
+ g_object_unref ( G_OBJECT ( wi->vtl ) );
gdk_threads_leave();
}
-
- gdk_threads_enter();
- if (w->ok) {
- gtk_label_set_text ( GTK_LABEL(w->status), "Done." );
- vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(w->vlp), VIK_LAYER(vtl));
- 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 {
- /* canceled */
- g_object_unref(vtl);
+ else {
+ gdk_threads_enter();
+ on_complete_process ( wi );
+ gdk_threads_leave();
}
- if ( interface->cleanup_func )
- interface->cleanup_func ( w->specific_data );
+ if ( source_interface->cleanup_func )
+ source_interface->cleanup_func ( wi->w->user_data );
- if ( w->ok ) {
- w->ok = FALSE;
- } else {
- g_free ( w );
+ if ( wi->w->running ) {
+ wi->w->running = FALSE;
+ }
+ else {
+ g_free ( wi->w );
+ g_free ( wi );
+ wi = NULL;
}
- gdk_threads_leave();
g_thread_exit ( NULL );
}
-
-void a_acquire ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikDataSourceInterface *interface )
+/* depending on type of filter, often only vtl or track will be given.
+ * the other can be NULL.
+ */
+static void acquire ( VikWindow *vw,
+ VikLayersPanel *vlp,
+ VikViewport *vvp,
+ vik_datasource_mode_t mode,
+ VikDataSourceInterface *source_interface,
+ VikTrwLayer *vtl,
+ VikTrack *track,
+ gpointer userdata,
+ VikDataSourceCleanupFunc cleanup_function )
{
+ /* for manual dialogs */
GtkWidget *dialog = NULL;
GtkWidget *status;
- gchar *cmd, *extra;
+ gchar *cmd = NULL;
+ gchar *extra = NULL;
+ gchar *cmd_off = NULL;
+ gchar *extra_off = NULL;
acq_dialog_widgets_t *w;
+ gpointer user_data;
+ gpointer options = NULL;
+
+ acq_vik_t avt;
+ avt.vlp = vlp;
+ avt.vvp = vvp;
+ avt.vw = vw;
+ avt.userdata = userdata;
+
+ /* for UI builder */
+ gpointer pass_along_data;
+ VikLayerParamData *paramdatas = NULL;
w_and_interface_t *wi;
- if ( interface->add_widgets_func ) {
- gpointer first_dialog_data;
- dialog = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
- first_dialog_data = interface->add_widgets_func(dialog);
+ /*** INIT AND CHECK EXISTENCE ***/
+ if ( source_interface->init_func )
+ user_data = source_interface->init_func(&avt);
+ else
+ user_data = NULL;
+ pass_along_data = user_data;
+
+ if ( source_interface->check_existence_func ) {
+ gchar *error_str = source_interface->check_existence_func();
+ if ( error_str ) {
+ a_dialog_error_msg ( GTK_WINDOW(vw), error_str );
+ g_free ( error_str );
+ return;
+ }
+ }
+
+ /* BUILD UI & GET OPTIONS IF NECESSARY. */
+
+ /* POSSIBILITY 0: NO OPTIONS. DO NOTHING HERE. */
+ /* POSSIBILITY 1: ADD_SETUP_WIDGETS_FUNC */
+ if ( source_interface->add_setup_widgets_func ) {
+ dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
+
+ gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
+ GtkWidget *response_w = NULL;
+#if GTK_CHECK_VERSION (2, 20, 0)
+ response_w = gtk_dialog_get_widget_for_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
+#endif
+
+ source_interface->add_setup_widgets_func(dialog, vvp, user_data);
+ gtk_window_set_title ( GTK_WINDOW(dialog), _(source_interface->window_title) );
+
+ if ( response_w )
+ gtk_widget_grab_focus ( response_w );
+
if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) {
- interface->first_cleanup_func(first_dialog_data);
+ source_interface->cleanup_func(user_data);
gtk_widget_destroy(dialog);
return;
}
- interface->get_cmd_string_func ( first_dialog_data, &cmd, &extra );
- interface->first_cleanup_func(first_dialog_data);
+ }
+ /* POSSIBILITY 2: UI BUILDER */
+ else if ( source_interface->params ) {
+ paramdatas = a_uibuilder_run_dialog ( source_interface->window_title, GTK_WINDOW(vw),
+ source_interface->params, source_interface->params_count,
+ source_interface->params_groups, source_interface->params_groups_count,
+ source_interface->params_defaults );
+ if ( paramdatas )
+ pass_along_data = paramdatas;
+ else
+ return; /* TODO: do we have to free anything here? */
+ }
+
+ /* CREATE INPUT DATA & GET COMMAND STRING */
+
+ if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER ) {
+ gchar *name_src = a_gpx_write_tmp_file ( vtl, NULL );
+
+ ((VikDataSourceGetCmdStringFuncWithInput) source_interface->get_cmd_string_func)
+ ( pass_along_data, &cmd, &extra, name_src );
+
+ util_add_to_deletion_list ( name_src );
+
+ g_free ( name_src );
+ } else if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK ) {
+ gchar *name_src = a_gpx_write_tmp_file ( vtl, NULL );
+ gchar *name_src_track = a_gpx_write_track_tmp_file ( track, NULL );
+
+ ((VikDataSourceGetCmdStringFuncWithInputInput) source_interface->get_cmd_string_func)
+ ( pass_along_data, &cmd, &extra, name_src, name_src_track );
+
+ util_add_to_deletion_list ( name_src );
+ util_add_to_deletion_list ( name_src_track );
+
+ g_free ( name_src );
+ g_free ( name_src_track );
+ } else if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRACK ) {
+ gchar *name_src_track = a_gpx_write_track_tmp_file ( track, NULL );
+
+ ((VikDataSourceGetCmdStringFuncWithInput) source_interface->get_cmd_string_func)
+ ( pass_along_data, &cmd, &extra, name_src_track );
+
+ g_free ( name_src_track );
+ } else if ( source_interface->get_cmd_string_func )
+ source_interface->get_cmd_string_func ( pass_along_data, &cmd, &extra, &options );
+
+ /* Get data for Off command */
+ if ( source_interface->off_func ) {
+ source_interface->off_func ( pass_along_data, &cmd_off, &extra_off );
+ }
+
+ /* cleanup for option dialogs */
+ if ( source_interface->add_setup_widgets_func ) {
gtk_widget_destroy(dialog);
dialog = NULL;
- } else
- interface->get_cmd_string_func ( NULL, &cmd, &extra );
-
- if ( ! cmd )
- return;
+ } else if ( source_interface->params ) {
+ a_uibuilder_free_paramdatas ( paramdatas, source_interface->params, source_interface->params_count );
+ }
w = g_malloc(sizeof(*w));
wi = g_malloc(sizeof(*wi));
wi->w = w;
- wi->interface = interface;
+ wi->w->source_interface = source_interface;
wi->cmd = cmd;
- wi->extra = extra;
+ wi->extra = extra; /* usually input data type (?) */
+ wi->options = options;
+ wi->vtl = vtl;
+ wi->creating_new_layer = (!vtl); // Default if Auto Layer Management is passed in
- dialog = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
+ dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
gtk_dialog_set_response_sensitive ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT, FALSE );
-
+ gtk_window_set_title ( GTK_WINDOW(dialog), _(source_interface->window_title) );
w->dialog = dialog;
- w->ok = TRUE;
-
- status = gtk_label_new ("Status: detecting gpsbabel");
- gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), status, FALSE, FALSE, 5 );
- gtk_widget_show_all(status);
+ w->running = TRUE;
+ status = gtk_label_new (_("Working..."));
+ gtk_box_pack_start ( GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), status, FALSE, FALSE, 5 );
+ gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
+ // May not want to see the dialog at all
+ if ( source_interface->is_thread || source_interface->keep_dialog_open )
+ gtk_widget_show_all(dialog);
w->status = status;
w->vw = vw;
w->vlp = vlp;
w->vvp = vvp;
- if ( interface->add_progress_widgets_func )
- w->specific_data = interface->add_progress_widgets_func ( dialog );
- else
- w->specific_data = NULL;
+ if ( source_interface->add_progress_widgets_func ) {
+ source_interface->add_progress_widgets_func ( dialog, user_data );
+ }
+ w->user_data = user_data;
+
+ if ( mode == VIK_DATASOURCE_ADDTOLAYER ) {
+ VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp );
+ if ( IS_VIK_TRW_LAYER(current_selected) ) {
+ wi->vtl = VIK_TRW_LAYER(current_selected);
+ wi->creating_new_layer = FALSE;
+ }
+ }
+ else if ( mode == VIK_DATASOURCE_CREATENEWLAYER ) {
+ wi->creating_new_layer = TRUE;
+ }
+ else if ( mode == VIK_DATASOURCE_MANUAL_LAYER_MANAGEMENT ) {
+ // Don't create in acquire - as datasource will perform the necessary actions
+ wi->creating_new_layer = FALSE;
+ VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp );
+ if ( IS_VIK_TRW_LAYER(current_selected) )
+ wi->vtl = VIK_TRW_LAYER(current_selected);
+ }
+ if ( wi->creating_new_layer ) {
+ wi->vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, FALSE ) );
+ vik_layer_rename ( VIK_LAYER ( wi->vtl ), _(source_interface->layer_title) );
+ }
- g_thread_create((GThreadFunc)get_from_anything, wi, FALSE, NULL );
+ if ( source_interface->is_thread ) {
+ if ( cmd ) {
+#if GLIB_CHECK_VERSION (2, 32, 0)
+ g_thread_try_new ( "get_from_anything", (GThreadFunc)get_from_anything, wi, NULL );
+#else
+ g_thread_create ( (GThreadFunc)get_from_anything, wi, FALSE, NULL );
+#endif
+ gtk_dialog_run ( GTK_DIALOG(dialog) );
+ if (w->running) {
+ // Cancel and mark for thread to finish
+ w->running = FALSE;
+ // NB Thread will free memory
+ } else {
+ if ( cmd_off ) {
+ /* Turn off */
+ a_babel_convert_from (NULL, cmd_off, extra_off, NULL, NULL, NULL);
+ g_free ( cmd_off );
+ }
+ if ( extra_off )
+ g_free ( extra_off );
- gtk_dialog_run ( GTK_DIALOG(dialog) );
- if ( w->ok )
- w->ok = FALSE; /* tell thread to stop. TODO: add mutex */
+ // Thread finished by normal completion - free memory
+ g_free ( w );
+ g_free ( wi );
+ }
+ }
+ else {
+ // This shouldn't happen...
+ gtk_label_set_text ( GTK_LABEL(w->status), _("Unable to create command\nAcquire method failed.") );
+ gtk_dialog_run (GTK_DIALOG (dialog));
+ }
+ }
else {
- g_free ( w ); /* thread has finished; free w */
+ // bypass thread method malarkly - you'll just have to wait...
+ if ( source_interface->process_func ) {
+ gboolean result = source_interface->process_func ( wi->vtl, cmd, extra, (BabelStatusFunc) progress_func, w, options );
+ if ( !result )
+ a_dialog_msg ( GTK_WINDOW(vw), GTK_MESSAGE_ERROR, _("Error: acquisition failed."), NULL );
+ }
+ g_free ( cmd );
+ g_free ( extra );
+ g_free ( options );
+
+ on_complete_process ( wi );
+ // Actually show it if necessary
+ if ( wi->w->source_interface->keep_dialog_open )
+ gtk_dialog_run ( GTK_DIALOG(dialog) );
+
+ g_free ( w );
+ g_free ( wi );
}
+
gtk_widget_destroy ( dialog );
+
+ if ( cleanup_function )
+ cleanup_function ( source_interface );
+}
+
+/**
+ * a_acquire:
+ * @vw: The #VikWindow to work with
+ * @vlp: The #VikLayersPanel in which a #VikTrwLayer layer may be created/appended
+ * @vvp: The #VikViewport defining the current view
+ * @mode: How layers should be managed
+ * @source_interface: The #VikDataSourceInterface determining how and what actions to take
+ * @userdata: External data to be passed into the #VikDataSourceInterface
+ * @cleanup_function: The function to dispose the #VikDataSourceInterface if necessary
+ *
+ * Process the given VikDataSourceInterface for sources with no input data.
+ */
+void a_acquire ( VikWindow *vw,
+ VikLayersPanel *vlp,
+ VikViewport *vvp,
+ vik_datasource_mode_t mode,
+ VikDataSourceInterface *source_interface,
+ gpointer userdata,
+ VikDataSourceCleanupFunc cleanup_function )
+{
+ acquire ( vw, vlp, vvp, mode, source_interface, NULL, NULL, userdata, cleanup_function );
+}
+
+static void acquire_trwlayer_callback ( GObject *menuitem, gpointer *pass_along )
+{
+ VikDataSourceInterface *iface = g_object_get_data ( menuitem, "vik_acq_iface" );
+ VikWindow *vw = pass_along[0];
+ VikLayersPanel *vlp = pass_along[1];
+ VikViewport *vvp = pass_along[2];
+ VikTrwLayer *vtl = pass_along[3];
+ VikTrack *tr = pass_along[4];
+
+ acquire ( vw, vlp, vvp, iface->mode, iface, vtl, tr, NULL, NULL );
+}
+
+static GtkWidget *acquire_build_menu ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp,
+ VikTrwLayer *vtl, VikTrack *track, /* both passed to acquire, although for many filters only one ness */
+ const gchar *menu_title, vik_datasource_inputtype_t inputtype )
+{
+ static gpointer pass_along[5];
+ GtkWidget *menu_item=NULL, *menu=NULL;
+ GtkWidget *item=NULL;
+ int i;
+
+ pass_along[0] = vw;
+ pass_along[1] = vlp;
+ pass_along[2] = vvp;
+ pass_along[3] = vtl;
+ pass_along[4] = track;
+
+ for ( i = 0; i < N_FILTERS; i++ ) {
+ if ( filters[i]->inputtype == inputtype ) {
+ if ( ! menu_item ) { /* do this just once, but return NULL if no filters */
+ menu = gtk_menu_new();
+ menu_item = gtk_menu_item_new_with_mnemonic ( menu_title );
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu );
+ }
+
+ item = gtk_menu_item_new_with_label ( filters[i]->window_title );
+ g_object_set_data ( G_OBJECT(item), "vik_acq_iface", (gpointer) filters[i] );
+ g_signal_connect ( G_OBJECT(item), "activate", G_CALLBACK(acquire_trwlayer_callback), pass_along );
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
+ gtk_widget_show ( item );
+ }
+ }
+
+ return menu_item;
+}
+
+/**
+ * a_acquire_trwlayer_menu:
+ *
+ * Create a sub menu intended for rightclicking on a TRWLayer's menu called "Filter".
+ *
+ * Returns: %NULL if no filters.
+ */
+GtkWidget *a_acquire_trwlayer_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrwLayer *vtl)
+{
+ return acquire_build_menu ( vw, vlp, vvp, vtl, NULL, _("_Filter"), VIK_DATASOURCE_INPUTTYPE_TRWLAYER );
+}
+
+/**
+ * a_acquire_trwlayer_track_menu:
+ *
+ * Create a sub menu intended for rightclicking on a TRWLayer's menu called "Filter with Track "TRACKNAME"...".
+ *
+ * Returns: %NULL if no filters or no filter track has been set.
+ */
+GtkWidget *a_acquire_trwlayer_track_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrwLayer *vtl)
+{
+ if ( filter_track == NULL )
+ return NULL;
+ else {
+ gchar *menu_title = g_strdup_printf ( _("Filter with %s"), filter_track->name );
+ GtkWidget *rv = acquire_build_menu ( vw, vlp, vvp, vtl, filter_track,
+ menu_title, VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK );
+ g_free ( menu_title );
+ return rv;
+ }
+}
+
+/**
+ * a_acquire_track_menu:
+ *
+ * Create a sub menu intended for rightclicking on a track's menu called "Filter".
+ *
+ * Returns: %NULL if no applicable filters
+ */
+GtkWidget *a_acquire_track_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrack *tr)
+{
+ return acquire_build_menu ( vw, vlp, vvp, NULL, tr, _("Filter"), VIK_DATASOURCE_INPUTTYPE_TRACK );
}
+/**
+ * a_acquire_set_filter_track:
+ *
+ * Sets application-wide track to use with filter. references the track.
+ */
+void a_acquire_set_filter_track ( VikTrack *tr )
+{
+ if ( filter_track )
+ vik_track_free ( filter_track );
+
+ filter_track = tr;
+ vik_track_ref ( tr );
+}