/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Map widget.
*
* Copyright (C) 2000-2001 Ximian, Inc.
*
* Authors: Hans Petter Jansson <hpj@ximian.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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.
*/
#ifndef E_MAP_H
#define E_MAP_H
#include <libgnome/gnome-defs.h>
#include <gtk/gtkwidget.h>
#define TYPE_E_MAP (e_map_get_type ())
#define E_MAP(obj) (GTK_CHECK_CAST ((obj), TYPE_E_MAP, EMap))
#define E_MAP_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), TYPE_E_MAP, EMapClass))
#define IS_E_MAP(obj) (GTK_CHECK_TYPE ((obj), TYPE_E_MAP))
#define IS_E_MAP_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), TYPE_E_MAP))
typedef struct _EMap EMap;
typedef struct _EMapClass EMapClass;
typedef struct _EMapPoint EMapPoint;
struct _EMap
{
GtkWidget widget;
/* Private data */
gpointer priv;
};
struct _EMapClass
{
GtkWidgetClass parent_class;
/* Notification signals */
void (*zoom_fit) (EMap * view);
/* GTK+ scrolling interface */
void (*set_scroll_adjustments) (GtkWidget * widget,
GtkAdjustment * hadj,
GtkAdjustment * vadj);
};
/* The definition of Dot */
struct _EMapPoint
{
gchar *name; /* Can be NULL */
double longitude, latitude;
guint32 rgba;
gpointer user_data;
};
/* --- Widget --- */
GtkType e_map_get_type (void);
EMap *e_map_new (void);
/* Stop doing redraws when map data changes (e.g. by modifying points) */
void e_map_freeze (EMap *map);
/* Do an immediate repaint, and start doing realtime repaints again */
void e_map_thaw (EMap *map);
/* --- Coordinate translation --- */
/* Translates window-relative coords to lat/long */
void e_map_window_to_world (EMap *map,
double win_x, double win_y,
double *world_longitude, double *world_latitude);
/* Translates lat/long to window-relative coordinates. Note that the
* returned coordinates can be negative or greater than the current size
* of the allocation area */
void e_map_world_to_window (EMap *map,
double world_longitude, double world_latitude,
double *win_x, double *win_y);
/* --- Zoom --- */
double e_map_get_magnification (EMap *map);
/* Pass TRUE if we want the smooth zoom hack */
void e_map_set_smooth_zoom (EMap *map, gboolean state);
/* TRUE if smooth zoom hack will be employed */
gboolean e_map_get_smooth_zoom (EMap *map);
/* NB: Function definition will change shortly */
void e_map_zoom_to_location (EMap *map, double longitude, double latitude);
/* Zoom to mag factor 1.0 */
void e_map_zoom_out (EMap *map);
/* --- Points --- */
EMapPoint *e_map_add_point (EMap *map, gchar *name,
double longitude, double latitude,
guint32 color_rgba);
void e_map_remove_point (EMap *map, EMapPoint *point);
void e_map_point_get_location (EMapPoint *point,
double *longitude, double *latitude);
gchar *e_map_point_get_name (EMapPoint *point);
guint32 e_map_point_get_color_rgba (EMapPoint *point);
void e_map_point_set_color_rgba (EMap *map, EMapPoint *point, guint32 color_rgba);
void e_map_point_set_data (EMapPoint *point, gpointer data);
gpointer e_map_point_get_data (EMapPoint *point);
gboolean e_map_point_is_in_view (EMap *map, EMapPoint *point);
EMapPoint *e_map_get_closest_point (EMap *map, double longitude, double latitude,
gboolean in_view);
#endif
