1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/* -*- 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef E_MAP_H
#define E_MAP_H
#include <gtk/gtkwidget.h>
#define TYPE_E_MAP (e_map_get_type ())
#define E_MAP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_E_MAP, EMap))
#define E_MAP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_E_MAP, EMapClass))
#define IS_E_MAP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_E_MAP))
#define IS_E_MAP_CLASS(klass) (G_TYPE_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 --- */
GType 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
|
