[andy/viking.git] / src / acquire.c

/*
 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
 *
 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
 *
 * 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
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <string.h>
#include <glib/gprintf.h>
#include <glib/gi18n.h>

#include "viking.h"
#include "babel.h"
#include "gpx.h"
#include "acquire.h"

/************************ FILTER LIST *******************/
// extern VikDataSourceInterface vik_datasource_gps_interface;
// extern VikDataSourceInterface vik_datasource_google_interface;

/*** Input is TRWLayer ***/
extern VikDataSourceInterface vik_datasource_bfilter_simplify_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_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;
gchar *filter_track_name = NULL;

/********************************************************/

/* passed along to worker thread */
typedef struct {
  acq_dialog_widgets_t *w;
  gchar *cmd;
  gchar *extra;
} w_and_interface_t;


/*********************************************************
 * Definitions and routines for acquiring data from Data Sources in general
 *********************************************************/

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 );
  }
  gdk_threads_leave ();

  if ( w->interface->progress_func )
    w->interface->progress_func ( (gpointer) c, data, w );
}


/* 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;
  VikTrwLayer *vtl;

  gboolean creating_new_layer = TRUE;

  acq_dialog_widgets_t *w = wi->w;
  VikDataSourceInterface *interface = wi->w->interface;
  g_free ( wi );
  wi = NULL;

  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);

  g_free ( cmd );
  g_free ( extra );

  if (!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 ) );
    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));
      if ( 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 ( interface->cleanup_func )
    interface->cleanup_func ( w->user_data );

  if ( w->ok ) {
    w->ok = FALSE;
  } else {
    g_free ( w );
  }

  gdk_threads_leave();
  g_thread_exit ( NULL );
}


static gchar *write_tmp_trwlayer ( VikTrwLayer *vtl )
{
  int fd_src;
  gchar *name_src;
  FILE *f;
  g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0);
  f = fdopen(fd_src, "w");
  a_gpx_write_file(vtl, f);
  fclose(f);
  return name_src;
}

/* TODO: write with name of old track */
static gchar *write_tmp_track ( VikTrack *track )
{
  int fd_src;
  gchar *name_src;
  FILE *f;
  g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0);
  f = fdopen(fd_src, "w");
  a_gpx_write_track_file("track", track, f); /* Thank you Guilhem! Just when I needed this function... -- Evan */
  fclose(f);
  return name_src;
}

/* TODO: cleanup, getr rid of redundancy */

/* 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, VikDataSourceInterface *interface,
		      VikTrwLayer *vtl, VikTrack *track )
{
  /* for manual dialogs */
  GtkWidget *dialog = NULL;
  GtkWidget *status;
  gchar *cmd, *extra;
  acq_dialog_widgets_t *w;
  gpointer user_data;

  /* for UI builder */
  gpointer pass_along_data;
  VikLayerParamData *paramdatas = NULL;

  w_and_interface_t *wi;

  /*** INIT AND CHECK EXISTENCE ***/
  if ( interface->init_func )
    user_data = interface->init_func();
  else
    user_data = NULL;
  pass_along_data = user_data;

  if ( interface->check_existence_func ) {
    gchar *error_str = 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 ( 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 );

    interface->add_setup_widgets_func(dialog, vvp, user_data);
    gtk_window_set_title ( GTK_WINDOW(dialog), _(interface->window_title) );

    if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) {
      interface->cleanup_func(user_data);
      gtk_widget_destroy(dialog);
      return;
    }
  }
  /* POSSIBILITY 2: UI BUILDER */
  else if ( interface->params ) {
    paramdatas = a_uibuilder_run_dialog ( GTK_WINDOW(vw),
			interface->params, interface->params_count,
			interface->params_groups, interface->params_groups_count,
			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 ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER ) {
    gchar *name_src = write_tmp_trwlayer ( vtl );

    ((VikDataSourceGetCmdStringFuncWithInput) interface->get_cmd_string_func)
	( pass_along_data, &cmd, &extra, name_src );

    g_free ( name_src );
    /* TODO: delete the tmp file? or delete it only after we're done with it? */
  } else if ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK ) {
    gchar *name_src = write_tmp_trwlayer ( vtl );
    gchar *name_src_track = write_tmp_track ( track );

    ((VikDataSourceGetCmdStringFuncWithInputInput) interface->get_cmd_string_func)
	( pass_along_data, &cmd, &extra, name_src, name_src_track );

    g_free ( name_src );
    g_free ( name_src_track );
  } else if ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRACK ) {
    gchar *name_src_track = write_tmp_track ( track );

    ((VikDataSourceGetCmdStringFuncWithInput) interface->get_cmd_string_func)
	( pass_along_data, &cmd, &extra, name_src_track );

    g_free ( name_src_track );
  } else
    interface->get_cmd_string_func ( pass_along_data, &cmd, &extra );

  /* cleanup for option dialogs */
  if ( interface->add_setup_widgets_func ) {
    gtk_widget_destroy(dialog);
    dialog = NULL;
  } else if ( interface->params ) {
    a_uibuilder_free_paramdatas ( paramdatas, interface->params, interface->params_count );
  }

  /*** LET'S DO IT! ***/

  if ( ! cmd )
    return;

  w = g_malloc(sizeof(*w));
  wi = g_malloc(sizeof(*wi));
  wi->w = w;
  wi->w->interface = interface;
  wi->cmd = cmd;
  wi->extra = extra; /* usually input data type (?) */

  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) );


  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->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 );
  }
  w->user_data = user_data;


  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 */
  else {
    g_free ( w ); /* thread has finished; free w */
  }
  gtk_widget_destroy ( dialog );
}

void a_acquire ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikDataSourceInterface *interface ) {
  acquire ( vw, vlp, vvp, interface, NULL, NULL );
}

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, vtl, tr );
}

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[4];
  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_label ( 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;
}

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 );
}

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;
  }
}

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 );
}

void a_acquire_set_filter_track ( VikTrack *tr, const gchar *name )
{
  if ( filter_track )
    vik_track_free ( filter_track );
  if ( filter_track_name )
    g_free ( filter_track_name );

  filter_track = tr;
  vik_track_ref ( tr );

  filter_track_name = g_strdup(name);
}
Commit	Line	Data
1d1bc3c1 EB	1	/*
	2	* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
	3	*
	4	* Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
4c77d5e0 GB	21	#ifdef HAVE_CONFIG_H
	22	#include "config.h"
	23	#endif
	24
1d1bc3c1 EB	25	#include <string.h>
1d1bc3c1 EB	26	#include <glib/gprintf.h>
4c77d5e0	27	#include <glib/gi18n.h>
1d1bc3c1 EB	28
	29	#include "viking.h"
	30	#include "babel.h"
	31	#include "gpx.h"
7b3479e3	32	#include "acquire.h"
1d1bc3c1	33
28c82d8b EB	34	/********************** FILTER LIST *****************/
	35	// extern VikDataSourceInterface vik_datasource_gps_interface;
	36	// extern VikDataSourceInterface vik_datasource_google_interface;
	37
	38	/* Input is TRWLayer */
	39	extern VikDataSourceInterface vik_datasource_bfilter_simplify_interface;
	40	extern VikDataSourceInterface vik_datasource_bfilter_dup_interface;
	41
	42	/* Input is a track and a TRWLayer */
	43	extern VikDataSourceInterface vik_datasource_bfilter_polygon_interface;
	44	extern VikDataSourceInterface vik_datasource_bfilter_exclude_polygon_interface;
	45
	46	/* Input is a track */
	47
	48	const VikDataSourceInterface *filters[] = {
	49	&vik_datasource_bfilter_simplify_interface,
	50	&vik_datasource_bfilter_dup_interface,
	51	&vik_datasource_bfilter_polygon_interface,
	52	&vik_datasource_bfilter_exclude_polygon_interface,
	53	};
	54
	55	const guint N_FILTERS = sizeof(filters) / sizeof(filters[0]);
	56
	57	VikTrack *filter_track = NULL;
	58	gchar *filter_track_name = NULL;
	59
	60	/********************************************************/
	61
7b3479e3	62	/* passed along to worker thread */
1d1bc3c1	63	typedef struct {
7b3479e3	64	acq_dialog_widgets_t *w;
7b3479e3 EB	65	gchar *cmd;
	66	gchar *extra;
	67	} w_and_interface_t;
1d1bc3c1	68
1d1bc3c1	69
7b3479e3	70	/*********************************************************
cf697cc2	71	* Definitions and routines for acquiring data from Data Sources in general
7b3479e3	72	*********************************************************/
1d1bc3c1	73
cf697cc2 EB	74	static void progress_func ( BabelProgressCode c, gpointer data, acq_dialog_widgets_t *w )
	75	{
	76	gdk_threads_enter ();
	77	if (!w->ok) {
cf697cc2	78	if ( w->interface->cleanup_func )
65f0ccab AF	79	w->interface->cleanup_func( w->user_data );
65f0ccab AF	80	g_free ( w );
cf697cc2 EB	81	gdk_threads_leave();
	82	g_thread_exit ( NULL );
	83	}
	84	gdk_threads_leave ();
	85
	86	if ( w->interface->progress_func )
	87	w->interface->progress_func ( (gpointer) c, data, w );
	88	}
	89
28c82d8b	90
1d1bc3c1	91	/* this routine is the worker thread. there is only one simultaneous download allowed */
7b3479e3	92	static void get_from_anything ( w_and_interface_t *wi )
1d1bc3c1	93	{
7b3479e3 EB	94	gchar *cmd = wi->cmd;
	95	gchar *extra = wi->extra;
	96	gboolean result;
805d282e EB	97	VikTrwLayer *vtl;
	98
	99	gboolean creating_new_layer = TRUE;
7b3479e3 EB	100
7b3479e3 EB	101	acq_dialog_widgets_t *w = wi->w;
cf697cc2	102	VikDataSourceInterface *interface = wi->w->interface;
7b3479e3	103	g_free ( wi );
28c82d8b	104	wi = NULL;
1d1bc3c1 EB	105
1d1bc3c1 EB	106	gdk_threads_enter();
805d282e EB	107	if (interface->mode == VIK_DATASOURCE_ADDTOLAYER) {
	108	VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp );
	109	if ( IS_VIK_TRW_LAYER(current_selected) ) {
	110	vtl = VIK_TRW_LAYER(current_selected);
	111	creating_new_layer = FALSE;
	112	}
	113	}
	114	if ( creating_new_layer ) {
	115	vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, NULL, FALSE ) );
4c77d5e0 GB	116	vik_layer_rename ( VIK_LAYER ( vtl ), _(interface->layer_title) );
4c77d5e0 GB	117	gtk_label_set_text ( GTK_LABEL(w->status), _("Working...") );
805d282e	118	}
1d1bc3c1 EB	119	gdk_threads_leave();
1d1bc3c1 EB	120
7b3479e3	121	if ( interface->type == VIK_DATASOURCE_GPSBABEL_DIRECT )
cf697cc2	122	result = a_babel_convert_from (vtl, cmd, (BabelStatusFunc) progress_func, extra, w);
7b3479e3	123	else
cf697cc2	124	result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) progress_func, w);
7b3479e3 EB	125
	126	g_free ( cmd );
	127	g_free ( extra );
	128
	129	if (!result) {
1d1bc3c1	130	gdk_threads_enter();
4c77d5e0	131	gtk_label_set_text ( GTK_LABEL(w->status), _("Error: couldn't find gpsbabel.") );
805d282e EB	132	if ( creating_new_layer )
805d282e EB	133	g_object_unref ( G_OBJECT ( vtl ) );
1d1bc3c1 EB	134	gdk_threads_leave();
1d1bc3c1 EB	135	}
5f304fd7	136	else {
65f0ccab AF	137	gdk_threads_enter();
65f0ccab AF	138	if (w->ok) {
4c77d5e0	139	gtk_label_set_text ( GTK_LABEL(w->status), _("Done.") );
65f0ccab AF	140	if ( creating_new_layer )
65f0ccab AF	141	vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(w->vlp), VIK_LAYER(vtl));
28c82d8b EB	142	if ( interface->keep_dialog_open ) {
	143	gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT, TRUE );
	144	gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_REJECT, FALSE );
	145	} else {
	146	gtk_dialog_response ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT );
	147	}
65f0ccab AF	148	} else {
	149	/* canceled */
	150	if ( creating_new_layer )
	151	g_object_unref(vtl);
	152	}
1d1bc3c1	153	}
7b3479e3	154	if ( interface->cleanup_func )
65f0ccab	155	interface->cleanup_func ( w->user_data );
7b3479e3 EB	156
	157	if ( w->ok ) {
	158	w->ok = FALSE;
	159	} else {
	160	g_free ( w );
	161	}
	162
1d1bc3c1 EB	163	gdk_threads_leave();
	164	g_thread_exit ( NULL );
	165	}
	166
7b3479e3	167
28c82d8b EB	168	static gchar write_tmp_trwlayer ( VikTrwLayer vtl )
	169	{
	170	int fd_src;
	171	gchar *name_src;
	172	FILE *f;
	173	g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0);
	174	f = fdopen(fd_src, "w");
	175	a_gpx_write_file(vtl, f);
	176	fclose(f);
	177	return name_src;
	178	}
	179
	180	/* TODO: write with name of old track */
	181	static gchar write_tmp_track ( VikTrack track )
	182	{
	183	int fd_src;
	184	gchar *name_src;
	185	FILE *f;
	186	g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0);
	187	f = fdopen(fd_src, "w");
	188	a_gpx_write_track_file("track", track, f); /* Thank you Guilhem! Just when I needed this function... -- Evan */
	189	fclose(f);
	190	return name_src;
	191	}
	192
	193	/* TODO: cleanup, getr rid of redundancy */
	194
	195	/* depending on type of filter, often only vtl or track will be given.
	196	* the other can be NULL.
	197	*/
	198	static void acquire ( VikWindow vw, VikLayersPanel vlp, VikViewport vvp, VikDataSourceInterface interface,
	199	VikTrwLayer vtl, VikTrack track )
1d1bc3c1	200	{
28c82d8b	201	/* for manual dialogs */
1d1bc3c1	202	GtkWidget *dialog = NULL;
7b3479e3 EB	203	GtkWidget *status;
	204	gchar cmd, extra;
	205	acq_dialog_widgets_t *w;
65f0ccab	206	gpointer user_data;
7b3479e3	207
28c82d8b EB	208	/* for UI builder */
28c82d8b EB	209	gpointer pass_along_data;
7ee4103e	210	VikLayerParamData *paramdatas = NULL;
28c82d8b	211
7b3479e3 EB	212	w_and_interface_t *wi;
7b3479e3 EB	213
28c82d8b EB	214	/* INIT AND CHECK EXISTENCE */
	215	if ( interface->init_func )
	216	user_data = interface->init_func();
	217	else
	218	user_data = NULL;
	219	pass_along_data = user_data;
	220
92255687 EB	221	if ( interface->check_existence_func ) {
	222	gchar *error_str = interface->check_existence_func();
	223	if ( error_str ) {
	224	a_dialog_error_msg ( GTK_WINDOW(vw), error_str );
	225	g_free ( error_str );
	226	return;
	227	}
	228	}
	229
28c82d8b EB	230	/* BUILD UI & GET OPTIONS IF NECESSARY. */
	231
	232	/* POSSIBILITY 0: NO OPTIONS. DO NOTHING HERE. */
	233	/* POSSIBILITY 1: ADD_SETUP_WIDGETS_FUNC */
65f0ccab	234	if ( interface->add_setup_widgets_func ) {
f4b1d29b	235	dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
92255687	236
65f0ccab	237	interface->add_setup_widgets_func(dialog, vvp, user_data);
4c77d5e0	238	gtk_window_set_title ( GTK_WINDOW(dialog), _(interface->window_title) );
a8d46e0b	239
7b3479e3	240	if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) {
65f0ccab	241	interface->cleanup_func(user_data);
7b3479e3 EB	242	gtk_widget_destroy(dialog);
	243	return;
	244	}
28c82d8b EB	245	}
	246	/* POSSIBILITY 2: UI BUILDER */
	247	else if ( interface->params ) {
	248	paramdatas = a_uibuilder_run_dialog ( GTK_WINDOW(vw),
	249	interface->params, interface->params_count,
	250	interface->params_groups, interface->params_groups_count,
	251	interface->params_defaults );
	252	if ( paramdatas )
	253	pass_along_data = paramdatas;
	254	else
	255	return; /* TODO: do we have to free anything here? */
	256	}
	257
	258	/* CREATE INPUT DATA & GET COMMAND STRING */
	259
	260	if ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER ) {
	261	gchar *name_src = write_tmp_trwlayer ( vtl );
	262
	263	((VikDataSourceGetCmdStringFuncWithInput) interface->get_cmd_string_func)
	264	( pass_along_data, &cmd, &extra, name_src );
	265
	266	g_free ( name_src );
	267	/* TODO: delete the tmp file? or delete it only after we're done with it? */
	268	} else if ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK ) {
	269	gchar *name_src = write_tmp_trwlayer ( vtl );
	270	gchar *name_src_track = write_tmp_track ( track );
	271
	272	((VikDataSourceGetCmdStringFuncWithInputInput) interface->get_cmd_string_func)
	273	( pass_along_data, &cmd, &extra, name_src, name_src_track );
	274
	275	g_free ( name_src );
	276	g_free ( name_src_track );
	277	} else if ( interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRACK ) {
	278	gchar *name_src_track = write_tmp_track ( track );
	279
	280	((VikDataSourceGetCmdStringFuncWithInput) interface->get_cmd_string_func)
	281	( pass_along_data, &cmd, &extra, name_src_track );
	282
	283	g_free ( name_src_track );
	284	} else
	285	interface->get_cmd_string_func ( pass_along_data, &cmd, &extra );
	286
	287	/* cleanup for option dialogs */
	288	if ( interface->add_setup_widgets_func ) {
7b3479e3 EB	289	gtk_widget_destroy(dialog);
7b3479e3 EB	290	dialog = NULL;
28c82d8b EB	291	} else if ( interface->params ) {
	292	a_uibuilder_free_paramdatas ( paramdatas, interface->params, interface->params_count );
	293	}
	294
	295	/* LET'S DO IT! */
7b3479e3 EB	296
	297	if ( ! cmd )
	298	return;
	299
	300	w = g_malloc(sizeof(*w));
	301	wi = g_malloc(sizeof(*wi));
	302	wi->w = w;
cf697cc2	303	wi->w->interface = interface;
7b3479e3	304	wi->cmd = cmd;
28c82d8b	305	wi->extra = extra; /* usually input data type (?) */
1d1bc3c1	306
f4b1d29b	307	dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL );
1d1bc3c1	308	gtk_dialog_set_response_sensitive ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT, FALSE );
4c77d5e0	309	gtk_window_set_title ( GTK_WINDOW(dialog), _(interface->window_title) );
1d1bc3c1	310
1d1bc3c1 EB	311
1d1bc3c1 EB	312	w->dialog = dialog;
7b3479e3	313	w->ok = TRUE;
4c77d5e0	314	status = gtk_label_new (_("Status: detecting gpsbabel"));
7b3479e3 EB	315	gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), status, FALSE, FALSE, 5 );
7b3479e3 EB	316	gtk_widget_show_all(status);
1d1bc3c1	317	w->status = status;
7b3479e3	318
1d1bc3c1 EB	319	w->vw = vw;
	320	w->vlp = vlp;
	321	w->vvp = vvp;
65f0ccab AF	322	if ( interface->add_progress_widgets_func ) {
	323	interface->add_progress_widgets_func ( dialog, user_data );
	324	}
	325	w->user_data = user_data;
7b3479e3	326
a8d46e0b	327
7b3479e3	328	g_thread_create((GThreadFunc)get_from_anything, wi, FALSE, NULL );
1d1bc3c1 EB	329
1d1bc3c1 EB	330	gtk_dialog_run ( GTK_DIALOG(dialog) );
7b3479e3 EB	331	if ( w->ok )
	332	w->ok = FALSE; /* tell thread to stop. TODO: add mutex */
	333	else {
	334	g_free ( w ); /* thread has finished; free w */
	335	}
1d1bc3c1 EB	336	gtk_widget_destroy ( dialog );
1d1bc3c1 EB	337	}
7b3479e3	338
28c82d8b EB	339	void a_acquire ( VikWindow vw, VikLayersPanel vlp, VikViewport vvp, VikDataSourceInterface interface ) {
	340	acquire ( vw, vlp, vvp, interface, NULL, NULL );
	341	}
	342
	343	static void acquire_trwlayer_callback ( GObject menuitem, gpointer pass_along )
	344	{
	345	VikDataSourceInterface *iface = g_object_get_data ( menuitem, "vik_acq_iface" );
	346	VikWindow *vw = pass_along[0];
	347	VikLayersPanel *vlp = pass_along[1];
	348	VikViewport *vvp = pass_along[2];
	349	VikTrwLayer *vtl = pass_along[3];
	350	VikTrack *tr = pass_along[4];
	351
	352	acquire ( vw, vlp, vvp, iface, vtl, tr );
	353	}
	354
	355	static GtkWidget acquire_build_menu ( VikWindow vw, VikLayersPanel vlp, VikViewport vvp,
	356	VikTrwLayer vtl, VikTrack track, /* both passed to acquire, although for many filters only one ness */
	357	const gchar *menu_title, vik_datasource_inputtype_t inputtype )
	358	{
	359	static gpointer pass_along[4];
7ee4103e GB	360	GtkWidget menu_item=NULL, menu=NULL;
7ee4103e GB	361	GtkWidget *item=NULL;
28c82d8b EB	362	int i;
28c82d8b EB	363
28c82d8b EB	364	pass_along[0] = vw;
	365	pass_along[1] = vlp;
	366	pass_along[2] = vvp;
	367	pass_along[3] = vtl;
	368	pass_along[4] = track;
	369
	370	for ( i = 0; i < N_FILTERS; i++ ) {
	371	if ( filters[i]->inputtype == inputtype ) {
	372	if ( ! menu_item ) { /* do this just once, but return NULL if no filters */
	373	menu = gtk_menu_new();
	374	menu_item = gtk_menu_item_new_with_label ( menu_title );
	375	gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu );
	376	}
	377
	378	item = gtk_menu_item_new_with_label ( filters[i]->window_title );
	379	g_object_set_data ( G_OBJECT(item), "vik_acq_iface", (gpointer) filters[i] );
	380	g_signal_connect ( G_OBJECT(item), "activate", G_CALLBACK(acquire_trwlayer_callback), pass_along );
	381	gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
	382	gtk_widget_show ( item );
	383	}
	384	}
	385
	386	return menu_item;
	387	}
	388
	389	GtkWidget a_acquire_trwlayer_menu (VikWindow vw, VikLayersPanel vlp, VikViewport vvp, VikTrwLayer *vtl)
	390	{
	391	return acquire_build_menu ( vw, vlp, vvp, vtl, NULL, "Filter", VIK_DATASOURCE_INPUTTYPE_TRWLAYER );
	392	}
	393
	394	GtkWidget a_acquire_trwlayer_track_menu (VikWindow vw, VikLayersPanel vlp, VikViewport vvp, VikTrwLayer *vtl)
	395	{
	396	if ( filter_track == NULL )
	397	return NULL;
	398	else {
	399	gchar *menu_title = g_strdup_printf ( "Filter with %s", filter_track_name );
	400	GtkWidget *rv = acquire_build_menu ( vw, vlp, vvp, vtl, filter_track,
	401	menu_title, VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK );
	402	g_free ( menu_title );
	403	return rv;
	404	}
	405	}
	406
	407	GtkWidget a_acquire_track_menu (VikWindow vw, VikLayersPanel vlp, VikViewport vvp, VikTrack *tr)
	408	{
	409	return acquire_build_menu ( vw, vlp, vvp, NULL, tr, "Filter", VIK_DATASOURCE_INPUTTYPE_TRACK );
	410	}
	411
	412	void a_acquire_set_filter_track ( VikTrack tr, const gchar name )
	413	{
	414	if ( filter_track )
	415	vik_track_free ( filter_track );
	416	if ( filter_track_name )
	417	g_free ( filter_track_name );
	418
	419	filter_track = tr;
	420	vik_track_ref ( tr );
	421
	422	filter_track_name = g_strdup(name);
	423	}