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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright (C) 2008 Pierre-Luc Beaudoin <pierre-luc@pierlux.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <champlain/champlain.h>
#define PADDING 10
static gboolean
zoom_in (G_GNUC_UNUSED ClutterActor *actor,
G_GNUC_UNUSED ClutterButtonEvent *event,
ChamplainView *view)
{
champlain_view_zoom_in (view);
return TRUE;
}
static gboolean
zoom_out (G_GNUC_UNUSED ClutterActor *actor,
G_GNUC_UNUSED ClutterButtonEvent *event,
ChamplainView *view)
{
champlain_view_zoom_out (view);
return TRUE;
}
static ClutterActor *
make_button (char *text)
{
ClutterActor *button, *button_bg, *button_text;
ClutterColor white = { 0xff, 0xff, 0xff, 0xff };
ClutterColor black = { 0x00, 0x00, 0x00, 0xff };
gfloat width, height;
button = clutter_actor_new ();
button_bg = clutter_actor_new ();
clutter_actor_set_background_color (button_bg, &white);
clutter_actor_add_child (button, button_bg);
clutter_actor_set_opacity (button_bg, 0xcc);
button_text = clutter_text_new_full ("Sans 10", text, &black);
clutter_actor_add_child (button, button_text);
clutter_actor_get_size (button_text, &width, &height);
clutter_actor_set_size (button_bg, width + PADDING * 2, height + PADDING * 2);
clutter_actor_set_position (button_bg, 0, 0);
clutter_actor_set_position (button_text, PADDING, PADDING);
return button;
}
static void
append_point (ChamplainPathLayer *layer, gdouble lon, gdouble lat)
{
ChamplainCoordinate *coord;
coord = champlain_coordinate_new_full (lon, lat);
champlain_path_layer_add_node (layer, CHAMPLAIN_LOCATION (coord));
}
int
main (int argc,
char *argv[])
{
ClutterActor *actor, *stage, *buttons, *button;
ChamplainPathLayer *layer;
gfloat width, total_width = 0;;
GList *dash = NULL;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_new ();
clutter_actor_set_size (stage, 800, 600);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
/* Create the map view */
actor = champlain_view_new ();
clutter_actor_set_size (CLUTTER_ACTOR (actor), 800, 600);
clutter_actor_add_child (stage, actor);
/* Create the buttons */
buttons = clutter_actor_new ();
clutter_actor_set_position (buttons, PADDING, PADDING);
button = make_button ("Zoom in");
clutter_actor_add_child (buttons, button);
clutter_actor_set_reactive (button, TRUE);
clutter_actor_get_size (button, &width, NULL);
total_width += width + PADDING;
g_signal_connect (button, "button-release-event",
G_CALLBACK (zoom_in),
actor);
button = make_button ("Zoom out");
clutter_actor_add_child (buttons, button);
clutter_actor_set_reactive (button, TRUE);
clutter_actor_set_position (button, total_width, 0);
clutter_actor_get_size (button, &width, NULL);
g_signal_connect (button, "button-release-event",
G_CALLBACK (zoom_out),
actor);
clutter_actor_add_child (stage, buttons);
/* draw a line */
layer = champlain_path_layer_new ();
/* Cheap approx of Highway 10 */
append_point (layer, 45.4104, -73.2846);
append_point (layer, 45.4178, -73.2239);
append_point (layer, 45.4176, -73.2181);
append_point (layer, 45.4151, -73.2126);
append_point (layer, 45.4016, -73.1926);
append_point (layer, 45.3994, -73.1877);
append_point (layer, 45.4000, -73.1815);
append_point (layer, 45.4151, -73.1218);
champlain_path_layer_set_stroke_width (layer, 4.0);
champlain_view_add_layer (CHAMPLAIN_VIEW (actor), CHAMPLAIN_LAYER (layer));
dash = g_list_append(dash, GUINT_TO_POINTER(6));
dash = g_list_append(dash, GUINT_TO_POINTER(2));
champlain_path_layer_set_dash (layer, dash);
/* draw a path */
layer = champlain_path_layer_new ();
append_point (layer, 45.1386, -73.9196);
append_point (layer, 45.1229, -73.8991);
append_point (layer, 45.0946, -73.9531);
append_point (layer, 45.1085, -73.9714);
append_point (layer, 45.1104, -73.9761);
g_object_set (layer, "closed", TRUE, NULL);
g_object_set (layer, "fill", TRUE, NULL);
champlain_path_layer_set_visible (layer, TRUE);
champlain_view_add_layer (CHAMPLAIN_VIEW (actor), CHAMPLAIN_LAYER (layer));
/* Finish initialising the map view */
g_object_set (G_OBJECT (actor), "zoom-level", 8,
"kinetic-mode", TRUE, NULL);
champlain_view_center_on (CHAMPLAIN_VIEW (actor), 45.466, -73.75);
clutter_actor_show (stage);
clutter_main ();
return 0;
}
|
