X-Git-Url: https://git.street.me.uk/andy/viking.git/blobdiff_plain/65f0ccab491b6f0bc5325b20063e0ec11642c003..9e90c3a511d4ea403d07522fb41d9f44328ecaa0:/src/acquire.c diff --git a/src/acquire.c b/src/acquire.c index 1bbbfa81..249bcfda 100644 --- a/src/acquire.c +++ b/src/acquire.c @@ -2,6 +2,7 @@ * viking -- GPS Data and Topo Analyzer, Explorer, and Manager * * Copyright (C) 2003-2005, Evan Battaglia + * Copyright (C) 2013, Rob Norris * * 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 @@ -18,23 +19,58 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include #include #include +#include #include "viking.h" #include "babel.h" #include "gpx.h" #include "acquire.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; 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 Data Sources in general @@ -42,18 +78,61 @@ extern VikDataSourceInterface vik_datasource_google_interface; static void progress_func ( BabelProgressCode c, gpointer data, acq_dialog_widgets_t *w ) { - gdk_threads_enter (); - if (!w->ok) { - if ( w->interface->cleanup_func ) - w->interface->cleanup_func( w->user_data ); - g_free ( w ); - gdk_threads_leave(); - g_thread_exit ( NULL ); + 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 (); } - gdk_threads_leave (); - if ( w->interface->progress_func ) - w->interface->progress_func ( (gpointer) c, data, w ); + 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 */ @@ -61,88 +140,90 @@ static void get_from_anything ( w_and_interface_t *wi ) { gchar *cmd = wi->cmd; gchar *extra = wi->extra; - gboolean result; - VikTrwLayer *vtl; + gboolean result = TRUE; - gboolean creating_new_layer = TRUE; + VikDataSourceInterface *source_interface = wi->w->source_interface; - acq_dialog_widgets_t *w = wi->w; - VikDataSourceInterface *interface = wi->w->interface; - g_free ( wi ); - - gdk_threads_enter(); - if (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 ), interface->layer_title ); - gtk_label_set_text ( GTK_LABEL(w->status), "Working..." ); - } - gdk_threads_leave(); - - if ( interface->type == VIK_DATASOURCE_GPSBABEL_DIRECT ) - result = a_babel_convert_from (vtl, cmd, (BabelStatusFunc) progress_func, extra, w); - else - result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) 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." ); - if ( creating_new_layer ) - g_object_unref ( G_OBJECT ( vtl ) ); + 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(); } else { gdk_threads_enter(); - if (w->ok) { - gtk_label_set_text ( GTK_LABEL(w->status), "Done." ); - if ( creating_new_layer ) - 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 */ - if ( creating_new_layer ) - g_object_unref(vtl); - } + on_complete_process ( wi ); + gdk_threads_leave(); } - if ( interface->cleanup_func ) - interface->cleanup_func ( w->user_data ); - if ( w->ok ) { - w->ok = FALSE; - } else { - g_free ( w ); + if ( source_interface->cleanup_func ) + source_interface->cleanup_func ( wi->w->user_data ); + + 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; - g_assert(interface->init_func); - user_data = interface->init_func(); - - if ( interface->check_existence_func ) { - gchar *error_str = interface->check_existence_func(); + /*** 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 ); @@ -150,62 +231,324 @@ void a_acquire ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikDataSo } } - if ( interface->add_setup_widgets_func ) { - dialog = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); + /* BUILD UI & GET OPTIONS IF NECESSARY. */ - interface->add_setup_widgets_func(dialog, vvp, user_data); - gtk_window_set_title ( GTK_WINDOW(dialog), interface->window_title ); + /* 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->cleanup_func(user_data); + source_interface->cleanup_func(user_data); gtk_widget_destroy(dialog); return; } - interface->get_cmd_string_func ( user_data, &cmd, &extra ); + } + /* 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 ( user_data, &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->w->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), interface->window_title ); - + 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 ) { - interface->add_progress_widgets_func ( dialog, user_data ); + 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 ); - - gtk_dialog_run ( GTK_DIALOG(dialog) ); - if ( w->ok ) - w->ok = FALSE; /* tell thread to stop. TODO: add mutex */ + 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 ); + + // 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 ); +}