2 * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include <gdk/gdkkeysyms.h>
22 #include "gis-marshal.h"
23 #include "gis-viewer.h"
37 static guint signals[NUM_SIGNALS];
44 static void _gis_viewer_fix_location(GisViewer *self)
46 while (self->location[0] < -90) self->location[0] += 180;
47 while (self->location[0] > 90) self->location[0] -= 180;
48 while (self->location[1] < -180) self->location[1] += 360;
49 while (self->location[1] > 180) self->location[1] -= 360;
50 self->location[2] = ABS(self->location[2]);
54 static void _gis_viewer_emit_location_changed(GisViewer *self)
56 g_signal_emit(self, signals[SIG_LOCATION_CHANGED], 0,
61 static void _gis_viewer_emit_rotation_changed(GisViewer *self)
63 g_signal_emit(self, signals[SIG_ROTATION_CHANGED], 0,
68 static void _gis_viewer_emit_time_changed(GisViewer *self)
70 g_signal_emit(self, signals[SIG_TIME_CHANGED], 0,
73 static void _gis_viewer_emit_refresh(GisViewer *self)
75 g_signal_emit(self, signals[SIG_REFRESH], 0);
77 static void _gis_viewer_emit_offline(GisViewer *self)
79 g_signal_emit(self, signals[SIG_OFFLINE], 0,
86 static gboolean on_button_press(GisViewer *self, GdkEventButton *event, gpointer _)
88 g_debug("GisViewer: on_button_press - Grabbing focus");
89 gtk_widget_grab_focus(GTK_WIDGET(self));
92 static gboolean on_key_press(GisViewer *self, GdkEventKey *event, gpointer _)
94 g_debug("GisViewer: on_key_press - key=%x, state=%x, plus=%x",
95 event->keyval, event->state, GDK_plus);
97 double lat, lon, elev, pan;
98 gis_viewer_get_location(self, &lat, &lon, &elev);
99 pan = MIN(elev/(EARTH_R/2), 30);
100 guint kv = event->keyval;
102 if (kv == GDK_Left || kv == GDK_h) gis_viewer_pan(self, 0, -pan, 0);
103 else if (kv == GDK_Down || kv == GDK_j) gis_viewer_pan(self, -pan, 0, 0);
104 else if (kv == GDK_Up || kv == GDK_k) gis_viewer_pan(self, pan, 0, 0);
105 else if (kv == GDK_Right || kv == GDK_l) gis_viewer_pan(self, 0, pan, 0);
106 else if (kv == GDK_minus || kv == GDK_o) gis_viewer_zoom(self, 10./9);
107 else if (kv == GDK_plus || kv == GDK_i) gis_viewer_zoom(self, 9./10);
108 else if (kv == GDK_H) gis_viewer_rotate(self, 0, 0, -2);
109 else if (kv == GDK_J) gis_viewer_rotate(self, 2, 0, 0);
110 else if (kv == GDK_K) gis_viewer_rotate(self, -2, 0, 0);
111 else if (kv == GDK_L) gis_viewer_rotate(self, 0, 0, 2);
114 static void on_view_changed(GisViewer *self,
115 gdouble _1, gdouble _2, gdouble _3)
117 gtk_widget_queue_draw(GTK_WIDGET(self));
123 void gis_viewer_setup(GisViewer *self, GisPlugins *plugins, GisPrefs *prefs)
125 self->plugins = plugins;
127 self->offline = gis_prefs_get_boolean(prefs, "gis/offline", NULL);
130 void gis_viewer_set_time(GisViewer *self, const char *time)
132 g_assert(GIS_IS_VIEWER(self));
133 g_debug("GisViewer: set_time - time=%s", time);
135 self->time = g_strdup(time);
136 _gis_viewer_emit_time_changed(self);
139 gchar *gis_viewer_get_time(GisViewer *self)
141 g_assert(GIS_IS_VIEWER(self));
142 g_debug("GisViewer: get_time");
146 void gis_viewer_set_location(GisViewer *self, gdouble lat, gdouble lon, gdouble elev)
148 g_assert(GIS_IS_VIEWER(self));
149 g_debug("GisViewer: set_location");
150 self->location[0] = lat;
151 self->location[1] = lon;
152 self->location[2] = elev;
153 _gis_viewer_fix_location(self);
154 _gis_viewer_emit_location_changed(self);
157 void gis_viewer_get_location(GisViewer *self, gdouble *lat, gdouble *lon, gdouble *elev)
159 g_assert(GIS_IS_VIEWER(self));
160 //g_debug("GisViewer: get_location");
161 *lat = self->location[0];
162 *lon = self->location[1];
163 *elev = self->location[2];
166 void gis_viewer_pan(GisViewer *self, gdouble lat, gdouble lon, gdouble elev)
168 g_assert(GIS_IS_VIEWER(self));
169 g_debug("GisViewer: pan - lat=%8.3f, lon=%8.3f, elev=%8.3f", lat, lon, elev);
170 self->location[0] += lat;
171 self->location[1] += lon;
172 self->location[2] += elev;
173 _gis_viewer_fix_location(self);
174 _gis_viewer_emit_location_changed(self);
177 void gis_viewer_zoom(GisViewer *self, gdouble scale)
179 g_assert(GIS_IS_VIEWER(self));
180 g_debug("GisViewer: zoom");
181 self->location[2] *= scale;
182 _gis_viewer_emit_location_changed(self);
185 void gis_viewer_set_rotation(GisViewer *self, gdouble x, gdouble y, gdouble z)
187 g_assert(GIS_IS_VIEWER(self));
188 g_debug("GisViewer: set_rotation");
189 self->rotation[0] = x;
190 self->rotation[1] = y;
191 self->rotation[2] = z;
192 _gis_viewer_emit_rotation_changed(self);
195 void gis_viewer_get_rotation(GisViewer *self, gdouble *x, gdouble *y, gdouble *z)
197 g_assert(GIS_IS_VIEWER(self));
198 g_debug("GisViewer: get_rotation");
199 *x = self->rotation[0];
200 *y = self->rotation[1];
201 *z = self->rotation[2];
204 void gis_viewer_rotate(GisViewer *self, gdouble x, gdouble y, gdouble z)
206 g_assert(GIS_IS_VIEWER(self));
207 g_debug("GisViewer: rotate - x=%.0f, y=%.0f, z=%.0f", x, y, z);
208 self->rotation[0] += x;
209 self->rotation[1] += y;
210 self->rotation[2] += z;
211 _gis_viewer_emit_rotation_changed(self);
214 void gis_viewer_refresh(GisViewer *self)
216 g_debug("GisViewer: refresh");
217 _gis_viewer_emit_refresh(self);
220 void gis_viewer_set_offline(GisViewer *self, gboolean offline)
222 g_assert(GIS_IS_VIEWER(self));
223 g_debug("GisViewer: set_offline - %d", offline);
224 gis_prefs_set_boolean(self->prefs, "gis/offline", offline);
225 self->offline = offline;
226 _gis_viewer_emit_offline(self);
229 gboolean gis_viewer_get_offline(GisViewer *self)
231 g_assert(GIS_IS_VIEWER(self));
232 g_debug("GisViewer: get_offline - %d", self->offline);
233 return self->offline;
236 /* To be implemented by subclasses */
237 void gis_viewer_center_position(GisViewer *self,
238 gdouble lat, gdouble lon, gdouble elev)
240 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
241 if (!klass->center_position)
242 g_warning("GisViewer: center_position - Unimplemented");
243 klass->center_position(self, lat, lon, elev);
246 void gis_viewer_project(GisViewer *self,
247 gdouble lat, gdouble lon, gdouble elev,
248 gdouble *px, gdouble *py, gdouble *pz)
250 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
252 g_warning("GisViewer: project - Unimplemented");
253 klass->project(self, lat, lon, elev, px, py, pz);
256 void gis_viewer_clear_height_func(GisViewer *self)
258 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
259 if (!klass->clear_height_func)
260 g_warning("GisViewer: clear_height_func - Unimplemented");
261 klass->clear_height_func(self);
264 void gis_viewer_set_height_func(GisViewer *self, GisTile *tile,
265 GisHeightFunc height_func, gpointer user_data,
268 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
269 if (!klass->set_height_func)
270 g_warning("GisViewer: set_height_func - Unimplemented");
271 klass->set_height_func(self, tile, height_func, user_data, update);
274 void gis_viewer_begin(GisViewer *self)
276 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
278 g_warning("GisViewer: begin - Unimplemented");
282 void gis_viewer_end(GisViewer *self)
284 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
286 g_warning("GisViewer: end - Unimplemented");
290 gpointer gis_viewer_add(GisViewer *self, GisObject *object,
291 gint level, gboolean sort)
293 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
295 g_warning("GisViewer: add - Unimplemented");
296 return klass->add(self, object, level, sort);
299 void gis_viewer_remove(GisViewer *self, gpointer ref)
301 GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
303 g_warning("GisViewer: remove - Unimplemented");
304 klass->remove(self, ref);
310 G_DEFINE_ABSTRACT_TYPE(GisViewer, gis_viewer, GTK_TYPE_DRAWING_AREA);
311 static void gis_viewer_init(GisViewer *self)
313 g_debug("GisViewer: init");
315 self->time = g_strdup("");
316 self->location[0] = 40;
317 self->location[1] = -100;
318 self->location[2] = 1.5*EARTH_R;
319 self->rotation[0] = 0;
320 self->rotation[1] = 0;
321 self->rotation[2] = 0;
323 g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
324 g_signal_connect(self, "button-press-event", G_CALLBACK(on_button_press), NULL);
326 g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
327 g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
329 static void gis_viewer_finalize(GObject *gobject)
331 g_debug("GisViewer: finalize");
332 GisViewer *self = GIS_VIEWER(gobject);
334 G_OBJECT_CLASS(gis_viewer_parent_class)->finalize(gobject);
336 static void gis_viewer_class_init(GisViewerClass *klass)
338 g_debug("GisViewer: class_init");
339 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
340 gobject_class->finalize = gis_viewer_finalize;
341 signals[SIG_TIME_CHANGED] = g_signal_new(
343 G_TYPE_FROM_CLASS(gobject_class),
348 g_cclosure_marshal_VOID__STRING,
352 signals[SIG_LOCATION_CHANGED] = g_signal_new(
354 G_TYPE_FROM_CLASS(gobject_class),
359 gis_cclosure_marshal_VOID__DOUBLE_DOUBLE_DOUBLE,
365 signals[SIG_ROTATION_CHANGED] = g_signal_new(
367 G_TYPE_FROM_CLASS(gobject_class),
372 gis_cclosure_marshal_VOID__DOUBLE_DOUBLE_DOUBLE,
378 signals[SIG_REFRESH] = g_signal_new(
380 G_TYPE_FROM_CLASS(gobject_class),
385 g_cclosure_marshal_VOID__VOID,
388 signals[SIG_OFFLINE] = g_signal_new(
390 G_TYPE_FROM_CLASS(gobject_class),
395 g_cclosure_marshal_VOID__BOOLEAN,