2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2005, Alex Foobarian <foobarian@gmail.com>
5 * Copyright (C) 2003-2007, Evan Battaglia <gtoevan@gmx.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <glib/gi18n.h>
32 /* functions common to all layers. */
33 /* TODO longone: rename interface free -> finalize */
35 extern VikLayerInterface vik_aggregate_layer_interface;
36 extern VikLayerInterface vik_trw_layer_interface;
37 extern VikLayerInterface vik_maps_layer_interface;
38 extern VikLayerInterface vik_coord_layer_interface;
39 extern VikLayerInterface vik_georef_layer_interface;
40 extern VikLayerInterface vik_gps_layer_interface;
41 extern VikLayerInterface vik_dem_layer_interface;
47 static guint layer_signals[VL_LAST_SIGNAL] = { 0 };
49 static GObjectClass *parent_class;
51 static void layer_class_init ( VikLayerClass *klass );
52 static void layer_init ( VikLayer *vl );
53 static void layer_finalize ( VikLayer *vl );
54 static gboolean layer_properties_factory ( VikLayer *vl, VikViewport *vp );
57 /* TODO longone: rename vik_layer_init -> set_type */
59 GType vik_layer_get_type ()
61 static GType vl_type = 0;
65 static const GTypeInfo vl_info =
67 sizeof (VikLayerClass),
69 NULL, /* base_finalize */
70 (GClassInitFunc) layer_class_init, /* class init */
71 NULL, /* class_finalize */
72 NULL, /* class_data */
75 (GInstanceInitFunc) layer_init /* instance init */
77 vl_type = g_type_register_static ( G_TYPE_OBJECT, "VikLayer", &vl_info, 0 );
83 static void layer_class_init (VikLayerClass *klass)
85 GObjectClass *object_class;
87 object_class = G_OBJECT_CLASS (klass);
89 object_class->finalize = (GObjectFinalizeFunc) layer_finalize;
91 parent_class = g_type_class_peek_parent (klass);
93 layer_signals[VL_UPDATE_SIGNAL] = g_signal_new ( "update", G_TYPE_FROM_CLASS (klass),
94 G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (VikLayerClass, update), NULL, NULL,
95 g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
98 void vik_layer_emit_update ( VikLayer *vl )
101 vik_window_set_redraw_trigger(vl);
102 g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
106 /* should only be done by VikLayersPanel -- need to redraw and record trigger
107 * when we make a layer invisible.
109 void vik_layer_emit_update_although_invisible ( VikLayer *vl )
111 vik_window_set_redraw_trigger(vl);
112 g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
115 /* doesn't set the trigger. should be done by aggregate layer when child emits update. */
116 void vik_layer_emit_update_secondary ( VikLayer *vl )
119 g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
122 static VikLayerInterface *vik_layer_interfaces[VIK_LAYER_NUM_TYPES] = {
123 &vik_aggregate_layer_interface,
124 &vik_trw_layer_interface,
125 &vik_coord_layer_interface,
126 &vik_georef_layer_interface,
127 &vik_gps_layer_interface,
128 &vik_maps_layer_interface,
129 &vik_dem_layer_interface,
132 VikLayerInterface *vik_layer_get_interface ( gint type )
134 g_assert ( type < VIK_LAYER_NUM_TYPES );
135 return vik_layer_interfaces[type];
138 static void layer_init ( VikLayer *vl )
142 vl->realized = FALSE;
145 void vik_layer_init ( VikLayer *vl, gint type )
151 void vik_layer_rename ( VikLayer *l, const gchar *new_name )
153 g_assert ( l != NULL );
154 g_assert ( new_name != NULL );
156 l->name = g_strdup ( new_name );
159 void vik_layer_rename_no_copy ( VikLayer *l, gchar *new_name )
161 g_assert ( l != NULL );
162 g_assert ( new_name != NULL );
167 const gchar *vik_layer_get_name ( VikLayer *l )
169 g_assert ( l != NULL);
173 VikLayer *vik_layer_create ( gint type, gpointer vp, GtkWindow *w, gboolean interactive )
175 VikLayer *new_layer = NULL;
176 g_assert ( type < VIK_LAYER_NUM_TYPES );
178 new_layer = vik_layer_interfaces[type]->create ( vp );
180 g_assert ( new_layer != NULL );
184 if ( vik_layer_properties ( new_layer, vp ) )
185 /* We translate the name here */
186 /* in order to avoid translating name set by user */
187 vik_layer_rename ( VIK_LAYER(new_layer), _(vik_layer_interfaces[type]->name) );
190 g_object_unref ( G_OBJECT(new_layer) ); /* cancel that */
197 /* returns TRUE if OK was pressed */
198 gboolean vik_layer_properties ( VikLayer *layer, gpointer vp )
200 if ( vik_layer_interfaces[layer->type]->properties )
201 return vik_layer_interfaces[layer->type]->properties ( layer, vp );
202 return layer_properties_factory ( layer, vp );
205 void vik_layer_draw ( VikLayer *l, gpointer data )
208 if ( vik_layer_interfaces[l->type]->draw )
209 vik_layer_interfaces[l->type]->draw ( l, data );
212 void vik_layer_change_coord_mode ( VikLayer *l, VikCoordMode mode )
214 if ( vik_layer_interfaces[l->type]->change_coord_mode )
215 vik_layer_interfaces[l->type]->change_coord_mode ( l, mode );
224 void vik_layer_marshall ( VikLayer *vl, guint8 **data, gint *len )
227 if ( vl && vik_layer_interfaces[vl->type]->marshall ) {
228 vik_layer_interfaces[vl->type]->marshall ( vl, data, len );
230 header = g_malloc(*len + sizeof(*header));
231 header->layer_type = vl->type;
233 memcpy(header->data, *data, *len);
235 *data = (guint8 *)header;
236 *len = *len + sizeof(*header);
243 void vik_layer_marshall_params ( VikLayer *vl, guint8 **data, gint *datalen )
245 VikLayerParam *params = vik_layer_get_interface(vl->type)->params;
246 VikLayerFuncGetParam get_param = vik_layer_get_interface(vl->type)->get_param;
247 GByteArray* b = g_byte_array_new ();
250 #define vlm_append(obj, sz) \
252 g_byte_array_append ( b, (guint8 *)&len, sizeof(len) ); \
253 g_byte_array_append ( b, (guint8 *)(obj), len );
255 vlm_append(vl->name, strlen(vl->name));
257 if ( params && get_param )
260 guint16 i, params_count = vik_layer_get_interface(vl->type)->params_count;
261 for ( i = 0; i < params_count; i++ )
263 g_debug("%s: %s", __FUNCTION__, params[i].name);
264 d = get_param(vl, i, FALSE);
265 switch ( params[i].type )
267 case VIK_LAYER_PARAM_STRING:
268 vlm_append(d.s, strlen(d.s));
271 /* print out the string list in the array */
272 case VIK_LAYER_PARAM_STRING_LIST: {
275 /* write length of list (# of strings) */
276 gint listlen = g_list_length ( list );
277 g_byte_array_append ( b, (guint8 *)&listlen, sizeof(listlen) );
279 /* write each string */
281 gchar *s = (gchar *) list->data;
282 vlm_append(s, strlen(s));
289 vlm_append(&d, sizeof(d));
297 g_byte_array_free ( b, FALSE );
302 void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint datalen, VikViewport *vvp )
304 VikLayerParam *params = vik_layer_get_interface(vl->type)->params;
305 VikLayerFuncSetParam set_param = vik_layer_get_interface(vl->type)->set_param;
307 guint8 *b = (guint8 *)data;
309 #define vlm_size (*(gint *)b)
310 #define vlm_read(obj) \
311 memcpy((obj), b+sizeof(gint), vlm_size); \
312 b += sizeof(gint) + vlm_size;
314 s = g_malloc(vlm_size + 1);
318 vik_layer_rename(vl, s);
322 if ( params && set_param )
325 guint16 i, params_count = vik_layer_get_interface(vl->type)->params_count;
326 for ( i = 0; i < params_count; i++ )
328 g_debug("%s: %s", __FUNCTION__, params[i].name);
329 switch ( params[i].type )
331 case VIK_LAYER_PARAM_STRING:
332 s = g_malloc(vlm_size + 1);
336 set_param(vl, i, d, vvp, FALSE);
339 case VIK_LAYER_PARAM_STRING_LIST: {
340 gint listlen = vlm_size, j;
342 b += sizeof(gint); /* skip listlen */;
344 for ( j = 0; j < listlen; j++ ) {
346 s = g_malloc(vlm_size + 1);
349 list = g_list_append ( list, s );
352 set_param(vl, i, d, vvp, FALSE);
353 /* don't free -- string list is responsibility of the layer */
359 set_param(vl, i, d, vvp, FALSE);
366 VikLayer *vik_layer_unmarshall ( guint8 *data, gint len, VikViewport *vvp )
370 header = (header_t *)data;
372 if ( vik_layer_interfaces[header->layer_type]->unmarshall ) {
373 return vik_layer_interfaces[header->layer_type]->unmarshall ( header->data, header->len, vvp );
379 static void layer_finalize ( VikLayer *vl )
381 g_assert ( vl != NULL );
382 if ( vik_layer_interfaces[vl->type]->free )
383 vik_layer_interfaces[vl->type]->free ( vl );
386 G_OBJECT_CLASS(parent_class)->finalize(G_OBJECT(vl));
389 /* sublayer switching */
390 gboolean vik_layer_sublayer_toggle_visible ( VikLayer *l, gint subtype, gpointer sublayer )
392 if ( vik_layer_interfaces[l->type]->sublayer_toggle_visible )
393 return vik_layer_interfaces[l->type]->sublayer_toggle_visible ( l, subtype, sublayer );
394 return TRUE; /* if unknown, will always be visible */
397 void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter *layer_iter )
400 l->iter = *layer_iter;
402 if ( vik_layer_interfaces[l->type]->realize )
403 vik_layer_interfaces[l->type]->realize ( l, vt, layer_iter );
406 void vik_layer_set_menu_items_selection(VikLayer *l, guint16 selection)
408 if ( vik_layer_interfaces[l->type]->set_menu_selection )
409 vik_layer_interfaces[l->type]->set_menu_selection ( l, selection );
412 guint16 vik_layer_get_menu_items_selection(VikLayer *l)
414 if ( vik_layer_interfaces[l->type]->get_menu_selection )
415 return(vik_layer_interfaces[l->type]->get_menu_selection (l));
417 return(vik_layer_interfaces[l->type]->menu_items_selection);
420 void vik_layer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp )
422 if ( vik_layer_interfaces[l->type]->add_menu_items )
423 vik_layer_interfaces[l->type]->add_menu_items ( l, menu, vlp );
426 gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter )
428 if ( vik_layer_interfaces[l->type]->sublayer_add_menu_items )
429 return vik_layer_interfaces[l->type]->sublayer_add_menu_items ( l, menu, vlp, subtype, sublayer, iter );
434 const gchar *vik_layer_sublayer_rename_request ( VikLayer *l, const gchar *newname, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter )
436 if ( vik_layer_interfaces[l->type]->sublayer_rename_request )
437 return vik_layer_interfaces[l->type]->sublayer_rename_request ( l, newname, vlp, subtype, sublayer, iter );
441 GdkPixbuf *vik_layer_load_icon ( gint type )
443 g_assert ( type < VIK_LAYER_NUM_TYPES );
444 if ( vik_layer_interfaces[type]->icon )
445 return gdk_pixbuf_from_pixdata ( vik_layer_interfaces[type]->icon, FALSE, NULL );
449 gboolean vik_layer_set_param ( VikLayer *layer, guint16 id, VikLayerParamData data, gpointer vp, gboolean is_file_operation )
451 if ( vik_layer_interfaces[layer->type]->set_param )
452 return vik_layer_interfaces[layer->type]->set_param ( layer, id, data, vp, is_file_operation );
456 void vik_layer_post_read ( VikLayer *layer, VikViewport *vp, gboolean from_file )
458 if ( vik_layer_interfaces[layer->type]->post_read )
459 vik_layer_interfaces[layer->type]->post_read ( layer, vp, from_file );
462 static gboolean layer_properties_factory ( VikLayer *vl, VikViewport *vp )
464 switch ( a_uibuilder_properties_factory ( _("Layer Properties"),
465 VIK_GTK_WINDOW_FROM_WIDGET(vp),
466 vik_layer_interfaces[vl->type]->params,
467 vik_layer_interfaces[vl->type]->params_count,
468 vik_layer_interfaces[vl->type]->params_groups,
469 vik_layer_interfaces[vl->type]->params_groups_count,
470 (gpointer) vik_layer_interfaces[vl->type]->set_param,
473 (gpointer) vik_layer_interfaces[vl->type]->get_param,
480 vik_layer_post_read ( vl, vp, FALSE ); /* update any gc's */