Pileus Git - grits/blob - src/aweather-view.c

   1 /*
   2  * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
   3  *
   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.
   8  *
   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.
  13  *
  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/>.
  16  */
  17
  18 #include <glib.h>
  19
  20 #include "marshal.h"
  21 #include "aweather-view.h"
  22
  23 /****************
  24  * GObject code *
  25  ****************/
  26 /* Constants */
  27 enum {
  28         PROP_0,
  29         PROP_TIME,
  30         PROP_SITE,
  31 };
  32 enum {
  33         SIG_TIME_CHANGED,
  34         SIG_SITE_CHANGED,
  35         SIG_LOCATION_CHANGED,
  36         SIG_REFRESH,
  37         NUM_SIGNALS,
  38 };
  39 static guint signals[NUM_SIGNALS];
  40
  41 /* Class/Object init */
  42 G_DEFINE_TYPE(AWeatherView, aweather_view, G_TYPE_OBJECT);
  43 static void aweather_view_init(AWeatherView *self)
  44 {
  45         g_debug("AWeatherView: init");
  46         /* Default values */
  47         self->time = g_strdup("");
  48         self->site = g_strdup("");
  49 }
  50 static void aweather_view_dispose(GObject *gobject)
  51 {
  52         g_debug("AWeatherView: dispose");
  53         /* Drop references to other GObjects */
  54         G_OBJECT_CLASS(aweather_view_parent_class)->dispose(gobject);
  55 }
  56 static void aweather_view_finalize(GObject *gobject)
  57 {
  58         g_debug("AWeatherView: finalize");
  59         AWeatherView *self = AWEATHER_VIEW(gobject);
  60         g_free(self->time);
  61         g_free(self->site);
  62         G_OBJECT_CLASS(aweather_view_parent_class)->finalize(gobject);
  63 }
  64 static void aweather_view_set_property(GObject *object, guint property_id,
  65                 const GValue *value, GParamSpec *pspec)
  66 {
  67         g_debug("AWeatherView: set_property");
  68         AWeatherView *self = AWEATHER_VIEW(object);
  69         switch (property_id) {
  70         case PROP_TIME:     aweather_view_set_time(self, g_value_get_string(value)); break;
  71         case PROP_SITE:     aweather_view_set_site(self, g_value_get_string(value)); break;
  72         default:            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
  73         }
  74 }
  75 static void aweather_view_get_property(GObject *object, guint property_id,
  76                 GValue *value, GParamSpec *pspec)
  77 {
  78         g_debug("AWeatherView: get_property");
  79         AWeatherView *self = AWEATHER_VIEW(object);
  80         switch (property_id) {
  81         case PROP_TIME:     g_value_set_string(value, aweather_view_get_time(self)); break;
  82         case PROP_SITE:     g_value_set_string(value, aweather_view_get_site(self)); break;
  83         default:            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
  84         }
  85 }
  86 static void aweather_view_class_init(AWeatherViewClass *klass)
  87 {
  88         g_debug("AWeatherView: class_init");
  89         GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
  90         gobject_class->dispose      = aweather_view_dispose;
  91         gobject_class->finalize     = aweather_view_finalize;
  92         gobject_class->get_property = aweather_view_get_property;
  93         gobject_class->set_property = aweather_view_set_property;
  94         g_object_class_install_property(gobject_class, PROP_TIME,
  95                 g_param_spec_pointer(
  96                         "time",
  97                         "time of the current frame",
  98                         "(format unknown)",
  99                         G_PARAM_READWRITE));
 100         g_object_class_install_property(gobject_class, PROP_SITE,
 101                 g_param_spec_pointer(
 102                         "site",
 103                         "site seen by the viewport",
 104                         "Site of the viewport. Currently this is the name of the radar site.",
 105                         G_PARAM_READWRITE));
 106         signals[SIG_TIME_CHANGED] = g_signal_new(
 107                         "time-changed",
 108                         G_TYPE_FROM_CLASS(gobject_class),
 109                         G_SIGNAL_RUN_LAST,
 110                         0,
 111                         NULL,
 112                         NULL,
 113                         g_cclosure_marshal_VOID__INT,
 114                         G_TYPE_NONE,
 115                         1,
 116                         G_TYPE_STRING);
 117         signals[SIG_SITE_CHANGED] = g_signal_new(
 118                         "site-changed",
 119                         G_TYPE_FROM_CLASS(gobject_class),
 120                         G_SIGNAL_RUN_LAST,
 121                         0,
 122                         NULL,
 123                         NULL,
 124                         g_cclosure_marshal_VOID__STRING,
 125                         G_TYPE_NONE,
 126                         1,
 127                         G_TYPE_STRING);
 128         signals[SIG_LOCATION_CHANGED] = g_signal_new(
 129                         "location-changed",
 130                         G_TYPE_FROM_CLASS(gobject_class),
 131                         G_SIGNAL_RUN_LAST,
 132                         0,
 133                         NULL,
 134                         NULL,
 135                         aweather_cclosure_marshal_VOID__DOUBLE_DOUBLE_DOUBLE,
 136                         G_TYPE_NONE,
 137                         3,
 138                         G_TYPE_DOUBLE,
 139                         G_TYPE_DOUBLE,
 140                         G_TYPE_DOUBLE);
 141         signals[SIG_REFRESH] = g_signal_new(
 142                         "refresh",
 143                         G_TYPE_FROM_CLASS(gobject_class),
 144                         G_SIGNAL_RUN_LAST,
 145                         0,
 146                         NULL,
 147                         NULL,
 148                         g_cclosure_marshal_VOID__VOID,
 149                         G_TYPE_NONE,
 150                         0);
 151
 152 }
 153
 154 /* Signal helpers */
 155 static void _aweather_view_emit_location_changed(AWeatherView *view)
 156 {
 157         g_signal_emit(view, signals[SIG_LOCATION_CHANGED], 0,
 158                         view->location[0],
 159                         view->location[1],
 160                         view->location[2]);
 161 }
 162 static void _aweather_view_emit_time_changed(AWeatherView *view)
 163 {
 164         g_signal_emit(view, signals[SIG_TIME_CHANGED], 0,
 165                         view->time);
 166 }
 167 static void _aweather_view_emit_site_changed(AWeatherView *view)
 168 {
 169         g_signal_emit(view, signals[SIG_SITE_CHANGED], 0,
 170                         view->site);
 171 }
 172 static void _aweather_view_emit_refresh(AWeatherView *view)
 173 {
 174         g_signal_emit(view, signals[SIG_REFRESH], 0);
 175 }
 176
 177
 178 /***********
 179  * Methods *
 180  ***********/
 181 AWeatherView *aweather_view_new()
 182 {
 183         g_debug("AWeatherView: new");
 184         return g_object_new(AWEATHER_TYPE_VIEW, NULL);
 185 }
 186
 187 void aweather_view_set_time(AWeatherView *view, const char *time)
 188 {
 189         g_assert(AWEATHER_IS_VIEW(view));
 190         g_debug("AWeatherView: set_time - time=%s", time);
 191         g_free(view->time);
 192         view->time = g_strdup(time);
 193         _aweather_view_emit_time_changed(view);
 194 }
 195
 196 gchar *aweather_view_get_time(AWeatherView *view)
 197 {
 198         g_assert(AWEATHER_IS_VIEW(view));
 199         g_debug("AWeatherView: get_time");
 200         return view->time;
 201 }
 202
 203 void aweather_view_get_location(AWeatherView *view, gdouble *x, gdouble *y, gdouble *z)
 204 {
 205         g_assert(AWEATHER_IS_VIEW(view));
 206         g_debug("AWeatherView: get_location");
 207         *x = view->location[0];
 208         *y = view->location[1];
 209         *z = view->location[2];
 210 }
 211
 212 void aweather_view_set_location(AWeatherView *view, gdouble x, gdouble y, gdouble z)
 213 {
 214         g_assert(AWEATHER_IS_VIEW(view));
 215         g_debug("AWeatherView: set_location");
 216         view->location[0] = x;
 217         view->location[1] = y;
 218         view->location[2] = z;
 219         _aweather_view_emit_location_changed(view);
 220 }
 221
 222 void aweather_view_pan(AWeatherView *view, gdouble x, gdouble y, gdouble z)
 223 {
 224         g_assert(AWEATHER_IS_VIEW(view));
 225         g_debug("AWeatherView: pan - x=%.0f, y=%.0f, z=%.0f", x, y, z);
 226         view->location[0] += x;
 227         view->location[1] += y;
 228         view->location[2] += z;
 229         _aweather_view_emit_location_changed(view);
 230 }
 231
 232 void aweather_view_zoom(AWeatherView *view, gdouble scale)
 233 {
 234         g_assert(AWEATHER_IS_VIEW(view));
 235         g_debug("AWeatherView: zoom");
 236         view->location[2] *= scale;
 237         _aweather_view_emit_location_changed(view);
 238 }
 239
 240 void aweather_view_refresh(AWeatherView *view)
 241 {
 242         g_debug("AWeatherView: refresh");
 243         _aweather_view_emit_refresh(view);
 244 }
 245
 246 void aweather_view_set_site(AWeatherView *view, const gchar *site)
 247 {
 248         g_assert(AWEATHER_IS_VIEW(view));
 249         g_debug("AWeatherView: set_site");
 250         g_free(view->site);
 251         view->site = g_strdup(site);
 252         _aweather_view_emit_site_changed(view);
 253 }
 254
 255 gchar *aweather_view_get_site(AWeatherView *view)
 256 {
 257         g_assert(AWEATHER_IS_VIEW(view));
 258         g_debug("AWeatherView: get_site");
 259         return view->site;
 260 }
 261