156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the program; if not, see <http://www.gnu.org/licenses/>
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*
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*
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* Authors:
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* Hans Petter Jansson <hpj@ximian.com>
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*
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* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
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*
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*/
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#if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
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#error "Only <e-util/e-util.h> should be included directly."
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#endif
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#ifndef E_MAP_H
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#define E_MAP_H
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#include <gtk/gtk.h>
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/* Standard GObject macros */
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#define E_TYPE_MAP \
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(e_map_get_type ())
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#define E_MAP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST \
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((obj), E_TYPE_MAP, EMap))
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#define E_MAP_CLASS(cls) \
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(G_TYPE_CHECK_CLASS_CAST \
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((cls), E_TYPE_MAP, EMapClass))
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#define E_IS_MAP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE \
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((obj), E_TYPE_MAP))
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#define E_IS_MAP_CLASS(cls) \
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(G_TYPE_CHECK_CLASS_TYPE \
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((cls), E_TYPE_MAP))
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#define E_MAP_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS \
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((obj), E_TYPE_MAP, EMapClass))
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G_BEGIN_DECLS
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typedef struct _EMap EMap;
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typedef struct _EMapClass EMapClass;
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typedef struct _EMapPrivate EMapPrivate;
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typedef struct _EMapPoint EMapPoint;
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struct _EMap {
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GtkWidget widget;
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EMapPrivate *priv;
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};
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struct _EMapClass {
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GtkWidgetClass parent_class;
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/* Notification signals */
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void (*zoom_fit) (EMap * view);
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/* GTK+ scrolling interface */
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void (*set_scroll_adjustments) (GtkWidget * widget,
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GtkAdjustment * hadj,
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GtkAdjustment * vadj);
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};
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/* The definition of Dot */
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struct _EMapPoint {
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gchar *name; /* Can be NULL */
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gdouble longitude, latitude;
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guint32 rgba;
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gpointer user_data;
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};
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/* --- Widget --- */
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GType e_map_get_type (void) G_GNUC_CONST;
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EMap *e_map_new (void);
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/* Stop doing redraws when map data changes (e.g. by modifying points) */
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void e_map_freeze (EMap *map);
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/* Do an immediate repaint, and start doing realtime repaints again */
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void e_map_thaw (EMap *map);
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/* --- Coordinate translation --- */
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/* Translates window-relative coords to lat/long */
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void e_map_window_to_world (EMap *map,
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gdouble win_x, gdouble win_y,
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gdouble *world_longitude, gdouble *world_latitude);
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/* Translates lat/long to window-relative coordinates. Note that the
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* returned coordinates can be negative or greater than the current size
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* of the allocation area */
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void e_map_world_to_window (EMap *map,
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gdouble world_longitude, gdouble world_latitude,
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gdouble *win_x, gdouble *win_y);
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/* --- Zoom --- */
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gdouble e_map_get_magnification (EMap *map);
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/* Pass TRUE if we want the smooth zoom hack */
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void e_map_set_smooth_zoom (EMap *map, gboolean state);
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/* TRUE if smooth zoom hack will be employed */
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gboolean e_map_get_smooth_zoom (EMap *map);
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/* NB: Function definition will change shortly */
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void e_map_zoom_to_location (EMap *map, gdouble longitude, gdouble latitude);
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/* Zoom to mag factor 1.0 */
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void e_map_zoom_out (EMap *map);
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/* --- Points --- */
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EMapPoint *e_map_add_point (EMap *map, gchar *name,
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gdouble longitude, gdouble latitude,
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guint32 color_rgba);
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void e_map_remove_point (EMap *map, EMapPoint *point);
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void e_map_point_get_location (EMapPoint *point,
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gdouble *longitude, gdouble *latitude);
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gchar *e_map_point_get_name (EMapPoint *point);
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guint32 e_map_point_get_color_rgba (EMapPoint *point);
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void e_map_point_set_color_rgba (EMap *map, EMapPoint *point, guint32 color_rgba);
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void e_map_point_set_data (EMapPoint *point, gpointer data);
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gpointer e_map_point_get_data (EMapPoint *point);
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gboolean e_map_point_is_in_view (EMap *map, EMapPoint *point);
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EMapPoint *e_map_get_closest_point (EMap *map, gdouble longitude, gdouble latitude,
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gboolean in_view);
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G_END_DECLS
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#endif
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