trunk/src/relation_edit.c

/*
 * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of OSM2Go.
 *
 * OSM2Go is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OSM2Go 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 OSM2Go.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "appdata.h"

/* --------------- relation dialog for an item (node or way) ----------- */

typedef struct {
  relation_item_t *item;
  appdata_t *appdata;
  GtkWidget *dialog, *view;
  GtkListStore *store;
  GtkWidget *but_add, *but_edit, *but_remove;
} relitem_context_t;

enum {
  RELITEM_COL_SELECTED = 0,
  RELITEM_COL_TYPE,
  RELITEM_COL_ROLE,
  RELITEM_COL_NAME,
  RELITEM_COL_DATA,
  RELITEM_NUM_COLS
};

static void relation_list_selected(relitem_context_t *context, 
                                   gboolean selected) {
  gtk_widget_set_sensitive(context->but_remove, FALSE);
  gtk_widget_set_sensitive(context->but_edit, selected);
}

static gboolean
relation_list_selection_func(GtkTreeSelection *selection, GtkTreeModel *model,
                     GtkTreePath *path, gboolean path_currently_selected,
                     gpointer userdata) {
  relitem_context_t *context = (relitem_context_t*)userdata;
  GtkTreeIter iter;
    
  if(gtk_tree_model_get_iter(model, &iter, path)) {
    g_assert(gtk_tree_path_get_depth(path) == 1);
    relation_list_selected(context, TRUE);
  }
  
  return TRUE; /* allow selection state to change */
}

static void relation_remove_item(relation_t *relation, relation_item_t *item) {

  printf("remove item of type %d from relation #%ld\n", 
         item->type, relation->id);

  member_t **member = &relation->member;
  while(*member) {
    if(((*member)->type == item->type) &&
       (((item->type == NODE) && (item->node == (*member)->node)) ||
        ((item->type == WAY) && (item->way == (*member)->way)) ||
      ((item->type == RELATION) && (item->relation == (*member)->relation)))) {
      
      member_t *next = (*member)->next;
      osm_member_free(*member);
      *member = next;

      relation->flags |= OSM_FLAG_DIRTY;

      return;
    } else
      member = &(*member)->next;
  }
  g_assert(0);
}

typedef struct role_chain_s {
  char *role;
  struct role_chain_s *next;
} role_chain_t;

static void relation_add_item(GtkWidget *parent,
                              relation_t *relation, relation_item_t *item) {
  role_chain_t *chain = NULL, **chainP = &chain;

  printf("add item of type %d to relation #%ld\n", 
         item->type, relation->id);

  /* ask the user for the role of the new item in this relation */
  
  /* collect roles first */
  member_t *member = relation->member;
  while(member) {
    if(member->role) {
      /* check if this role has already been saved */
      gboolean already_stored = FALSE;
      role_chain_t *crole = chain;
      while(crole) {
        if(strcasecmp(crole->role, member->role) == 0) already_stored = TRUE;
        crole = crole->next;
      }
      
      /* not stored yet: attach it */
      if(!already_stored) {
        *chainP = g_new0(role_chain_t, 1);
        (*chainP)->role = g_strdup(member->role);
        chainP = &(*chainP)->next;
      }
    }
    member = member->next;
  }

  /* ------------------ role dialog ---------------- */
  GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Select role"),
          GTK_WINDOW(parent), GTK_DIALOG_MODAL,
          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, 
          GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
          NULL);

  gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);

  char *type = osm_tag_get_by_key(relation->tag, "type");

  char *info_str = NULL;
  if(type) info_str = g_strdup_printf(_("In relation of type: %s"), type);
  else     info_str = g_strdup_printf(_("In relation #%ld"), relation->id);
  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                              gtk_label_new(info_str));
  g_free(info_str);

  char *name = osm_tag_get_by_key(relation->tag, "name");
  if(name) 
    gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), 
                                gtk_label_new(name));

  GtkWidget *hbox = gtk_hbox_new(FALSE, 8);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(_("Role:")));

  GtkWidget *entry = NULL;
  if(chain) {
    entry = gtk_combo_box_entry_new_text();

    /* fill combo box with presets */
    while(chain) {
      role_chain_t *next = chain->next;
      gtk_combo_box_append_text(GTK_COMBO_BOX(entry), chain->role);
      g_free(chain);
      chain = next;
    }
  } else
    entry = gtk_entry_new();

  gtk_box_pack_start_defaults(GTK_BOX(hbox), entry);
  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);

  gtk_widget_show_all(dialog);
  if(GTK_RESPONSE_ACCEPT != gtk_dialog_run(GTK_DIALOG(dialog))) {
    printf("user clicked cancel\n");
    gtk_widget_destroy(dialog);
    return;
  }
  
  printf("user clicked ok\n");

  /* get role from dialog */
  char *ptr = NULL;

  if(GTK_IS_COMBO_BOX(entry))
    ptr = gtk_combo_box_get_active_text(GTK_COMBO_BOX(entry));
  else
    ptr = (char*)gtk_entry_get_text(GTK_ENTRY(entry));

  char *role = NULL;
  if(ptr && strlen(ptr)) role = g_strdup(ptr);

  gtk_widget_destroy(dialog);

  /* search end of member chain */
  member_t **memberP = &relation->member;
  while(*memberP) memberP = &(*memberP)->next;

  /* create new member */
  *memberP = g_new0(member_t, 1);
  (*memberP)->type = item->type;
  (*memberP)->role = role;
  switch(item->type) {
  case NODE:
    (*memberP)->node = item->node;
    break;
  case WAY:
    (*memberP)->way = item->way;
    break;
  case RELATION:
    (*memberP)->relation = item->relation;
    break;
  default:
    g_assert((item->type == NODE)||(item->type == WAY)||
             (item->type == RELATION));
    break;
  }

  relation->flags |= OSM_FLAG_DIRTY;
}

static void on_relation_add(GtkWidget *but, relitem_context_t *context) {
  /* open a dialog where the user can pick from a list of all */
  /* relations */
}

static relation_t *get_selection(relitem_context_t *context) {
  GtkTreeSelection *selection;
  GtkTreeModel     *model;
  GtkTreeIter       iter;

  selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));
  if(gtk_tree_selection_get_selected(selection, &model, &iter)) {
    relation_t *relation;
    gtk_tree_model_get(model, &iter, RELITEM_COL_DATA, &relation, -1);
    return(relation);
  }
  return NULL;
}

static void on_relation_edit(GtkWidget *but, relitem_context_t *context) {
  relation_t *sel = get_selection(context);
  if(!sel) return;

  printf("edit relation #%ld\n", sel->id);

  info_dialog(context->dialog, context->appdata, sel);
}

static void on_relation_remove(GtkWidget *but, relitem_context_t *context) {
  relation_t *sel = get_selection(context);
  if(!sel) return;

  printf("remove relation #%ld\n", sel->id);
}

static void
relitem_toggled(GtkCellRendererToggle *cell, const gchar *path_str,
              relitem_context_t *context) {
  GtkTreePath *path;
  GtkTreeIter iter;

  path = gtk_tree_path_new_from_string(path_str);
  gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store), &iter, path);

  /* get current enabled flag */
  gboolean enabled;
  gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter, 
                     RELITEM_COL_SELECTED, &enabled, -1);

  /* change it and store it */
  enabled = !enabled;
  gtk_list_store_set(context->store, &iter, RELITEM_COL_SELECTED, enabled, -1);

  gtk_tree_path_free(path);
}

static gboolean relitem_is_in_relation(relation_item_t *item, relation_t *relation) {
  member_t *member = relation->member;
  while(member) {
    switch(member->type) {

    case NODE:
      if((item->type == NODE) && (item->node == member->node))
        return TRUE;
      break;

    case WAY:
      if((item->type == WAY) && (item->way == member->way))
        return TRUE;
      break;

    default:
      break;
    }
    member = member->next;
  }
  return FALSE;
}

static char *relitem_get_role_in_relation(relation_item_t *item, relation_t *relation) {
  member_t *member = relation->member;
  while(member) {
    switch(member->type) {

    case NODE:
      if((item->type == NODE) && (item->node == member->node))
        return member->role;
      break;

    case WAY:
      if((item->type == WAY) && (item->way == member->way))
        return member->role;
      break;

    default:
      break;
    }
    member = member->next;
  }
  return NULL;
}

static GtkWidget *relation_list(relitem_context_t *context) {
  GtkWidget *vbox = gtk_vbox_new(FALSE,3);
  context->view = gtk_tree_view_new();

  gtk_tree_selection_set_select_function(
         gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view)), 
         relation_list_selection_func, 
         context, NULL);


  /* --- "selected" column --- */
  GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
  g_signal_connect(renderer, "toggled", G_CALLBACK(relitem_toggled), context);
  gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
        -1, _(""), renderer, 
        "active", RELITEM_COL_SELECTED, 
        NULL);

  /* --- "Type" column --- */
  renderer = gtk_cell_renderer_text_new();
  gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
        -1, _("Type"), renderer, "text", RELITEM_COL_TYPE, NULL);

  /* --- "Role" column --- */
  renderer = gtk_cell_renderer_text_new();
  gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
        -1, _("Role"), renderer, "text", RELITEM_COL_ROLE, NULL);

  /* --- "Name" column --- */
  renderer = gtk_cell_renderer_text_new();
  g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
  GtkTreeViewColumn *column = 
    gtk_tree_view_column_new_with_attributes(_("Name"), renderer, 
                 "text", RELITEM_COL_NAME, NULL);
  gtk_tree_view_column_set_expand(column, TRUE);
  gtk_tree_view_insert_column(GTK_TREE_VIEW(context->view), column, -1);


  /* build and fill the store */
  context->store = gtk_list_store_new(RELITEM_NUM_COLS, 
                G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_STRING, 
                G_TYPE_STRING, G_TYPE_POINTER);

  gtk_tree_view_set_model(GTK_TREE_VIEW(context->view), 
                          GTK_TREE_MODEL(context->store));

  GtkTreeIter iter;
  relation_t *relation = context->appdata->osm->relation;
  while(relation) {
    /* try to find something descriptive */
    char *name = osm_tag_get_by_key(relation->tag, "name");
    if(!name) name = osm_tag_get_by_key(relation->tag, "ref");

    /* Append a row and fill in some data */
    gtk_list_store_append(context->store, &iter);
    gtk_list_store_set(context->store, &iter,
       RELITEM_COL_SELECTED, relitem_is_in_relation(context->item, relation),
       RELITEM_COL_TYPE, osm_tag_get_by_key(relation->tag, "type"),
       RELITEM_COL_ROLE, relitem_get_role_in_relation(context->item, relation),
       RELITEM_COL_NAME, name,
       RELITEM_COL_DATA, relation,
       -1);
    
    relation = relation->next;
  }
  
  g_object_unref(context->store);

  /* put it into a scrolled window */
  GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), 
                                 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
  gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), 
                                      GTK_SHADOW_ETCHED_IN);
  gtk_container_add(GTK_CONTAINER(scrolled_window), context->view);

  gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);

  /* ------- button box ------------ */

  GtkWidget *hbox = gtk_hbox_new(TRUE,3);

  context->but_add = gtk_button_new_with_label(_("Add..."));
  gtk_widget_set_sensitive(context->but_add, FALSE);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_add);
  gtk_signal_connect(GTK_OBJECT(context->but_add), "clicked",
                     GTK_SIGNAL_FUNC(on_relation_add), context);

  context->but_edit = gtk_button_new_with_label(_("Edit..."));
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_edit);
  gtk_signal_connect(GTK_OBJECT(context->but_edit), "clicked",
                     GTK_SIGNAL_FUNC(on_relation_edit), context);

  context->but_remove = gtk_button_new_with_label(_("Remove"));
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_remove);
  gtk_signal_connect(GTK_OBJECT(context->but_remove), "clicked",
                     GTK_SIGNAL_FUNC(on_relation_remove), context);

  relation_list_selected(context, FALSE);

  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
  return vbox;
}

void relation_add_dialog(appdata_t *appdata, relation_item_t *relitem) {
  relitem_context_t *context = g_new0(relitem_context_t, 1);
  map_t *map = appdata->map;
  g_assert(map);

  context->appdata = appdata;
  context->item = relitem;

  char *str = NULL;
  switch(relitem->type) {
  case NODE:
    str = g_strdup_printf(_("Relations for node #%ld"), relitem->node->id);
    break;
  case WAY:
    str = g_strdup_printf(_("Relations for way #%ld"), relitem->way->id);
    break;
  default:
    g_assert((relitem->type == NODE) || (relitem->type == WAY));
    break;
  }
  
  context->dialog = gtk_dialog_new_with_buttons(str,
        GTK_WINDOW(appdata->window), GTK_DIALOG_MODAL,
        GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, 
        GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, 
        NULL);
  g_free(str);
  
  gtk_dialog_set_default_response(GTK_DIALOG(context->dialog), 
                                  GTK_RESPONSE_ACCEPT);

  /* making the dialog a little wider makes it less "crowded" */
#ifdef USE_HILDON
  gtk_window_set_default_size(GTK_WINDOW(context->dialog), 500, 300);
#else
  gtk_window_set_default_size(GTK_WINDOW(context->dialog), 400, 200);
#endif
  gtk_box_pack_start(GTK_BOX(GTK_DIALOG(context->dialog)->vbox),
                     relation_list(context), TRUE, TRUE, 0);

  /* ----------------------------------- */

  gtk_widget_show_all(context->dialog);
  if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_ACCEPT) {
    printf("accepting new relation memberships\n");

    /* walk the entire store to get all values */
    GtkTreeIter iter;
    gboolean loop = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(context->store), &iter);
    while(loop) {
      gboolean enabled;
      relation_t *relation;

      gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter, 
                         RELITEM_COL_SELECTED, &enabled, 
                         RELITEM_COL_DATA, &relation, 
                         -1);


      if(relation && (enabled != relitem_is_in_relation(relitem, relation))) {
        printf("membership for relation #%ld has changed to %s\n", 
               relation->id, enabled?"yes":"no"); 

        if(!enabled) relation_remove_item(relation, relitem);
        else         relation_add_item(context->dialog, relation, relitem);
      }
      
      loop = gtk_tree_model_iter_next(GTK_TREE_MODEL(context->store), &iter);
    }
  }

  gtk_widget_destroy(context->dialog);

  g_free(context);
}
1	/*
2	* Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
3	*
4	* This file is part of OSM2Go.
5	*
6	* OSM2Go is free software: you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation, either version 3 of the License, or
9	* (at your option) any later version.
10	*
11	* OSM2Go is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with OSM2Go. If not, see <http://www.gnu.org/licenses/>.
18	*/
19
20	#include "appdata.h"
21
22	/* --------------- relation dialog for an item (node or way) ----------- */
23
24	typedef struct {
25	relation_item_t *item;
26	appdata_t *appdata;
27	GtkWidget dialog, view;
28	GtkListStore *store;
29	GtkWidget but_add, but_edit, *but_remove;
30	} relitem_context_t;
31
32	enum {
33	RELITEM_COL_SELECTED = 0,
34	RELITEM_COL_TYPE,
35	RELITEM_COL_ROLE,
36	RELITEM_COL_NAME,
37	RELITEM_COL_DATA,
38	RELITEM_NUM_COLS
39	};
40
41	static void relation_list_selected(relitem_context_t *context,
42	gboolean selected) {
43	gtk_widget_set_sensitive(context->but_remove, FALSE);
44	gtk_widget_set_sensitive(context->but_edit, selected);
45	}
46
47	static gboolean
48	relation_list_selection_func(GtkTreeSelection selection, GtkTreeModel model,
49	GtkTreePath *path, gboolean path_currently_selected,
50	gpointer userdata) {
51	relitem_context_t context = (relitem_context_t)userdata;
52	GtkTreeIter iter;
53
54	if(gtk_tree_model_get_iter(model, &iter, path)) {
55	g_assert(gtk_tree_path_get_depth(path) == 1);
56	relation_list_selected(context, TRUE);
57	}
58
59	return TRUE; /* allow selection state to change */
60	}
61
62	static void relation_remove_item(relation_t relation, relation_item_t item) {
63
64	printf("remove item of type %d from relation #%ld\n",
65	item->type, relation->id);
66
67	member_t **member = &relation->member;
68	while(*member) {
69	if(((*member)->type == item->type) &&
70	(((item->type == NODE) && (item->node == (*member)->node)) \|\|
71	((item->type == WAY) && (item->way == (*member)->way)) \|\|
72	((item->type == RELATION) && (item->relation == (*member)->relation)))) {
73
74	member_t next = (member)->next;
75	osm_member_free(*member);
76	*member = next;
77
78	relation->flags \|= OSM_FLAG_DIRTY;
79
80	return;
81	} else
82	member = &(*member)->next;
83	}
84	g_assert(0);
85	}
86
87	typedef struct role_chain_s {
88	char *role;
89	struct role_chain_s *next;
90	} role_chain_t;
91
92	static void relation_add_item(GtkWidget *parent,
93	relation_t relation, relation_item_t item) {
94	role_chain_t chain = NULL, *chainP = &chain;
95
96	printf("add item of type %d to relation #%ld\n",
97	item->type, relation->id);
98
99	/* ask the user for the role of the new item in this relation */
100
101	/* collect roles first */
102	member_t *member = relation->member;
103	while(member) {
104	if(member->role) {
105	/* check if this role has already been saved */
106	gboolean already_stored = FALSE;
107	role_chain_t *crole = chain;
108	while(crole) {
109	if(strcasecmp(crole->role, member->role) == 0) already_stored = TRUE;
110	crole = crole->next;
111	}
112
113	/* not stored yet: attach it */
114	if(!already_stored) {
115	*chainP = g_new0(role_chain_t, 1);
116	(*chainP)->role = g_strdup(member->role);
117	chainP = &(*chainP)->next;
118	}
119	}
120	member = member->next;
121	}
122
123	/* ------------------ role dialog ---------------- */
124	GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Select role"),
125	GTK_WINDOW(parent), GTK_DIALOG_MODAL,
126	GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
127	GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
128	NULL);
129
130	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
131
132	char *type = osm_tag_get_by_key(relation->tag, "type");
133
134	char *info_str = NULL;
135	if(type) info_str = g_strdup_printf(_("In relation of type: %s"), type);
136	else info_str = g_strdup_printf(_("In relation #%ld"), relation->id);
137	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
138	gtk_label_new(info_str));
139	g_free(info_str);
140
141	char *name = osm_tag_get_by_key(relation->tag, "name");
142	if(name)
143	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
144	gtk_label_new(name));
145
146	GtkWidget *hbox = gtk_hbox_new(FALSE, 8);
147	gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(_("Role:")));
148
149	GtkWidget *entry = NULL;
150	if(chain) {
151	entry = gtk_combo_box_entry_new_text();
152
153	/* fill combo box with presets */
154	while(chain) {
155	role_chain_t *next = chain->next;
156	gtk_combo_box_append_text(GTK_COMBO_BOX(entry), chain->role);
157	g_free(chain);
158	chain = next;
159	}
160	} else
161	entry = gtk_entry_new();
162
163	gtk_box_pack_start_defaults(GTK_BOX(hbox), entry);
164	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
165
166	gtk_widget_show_all(dialog);
167	if(GTK_RESPONSE_ACCEPT != gtk_dialog_run(GTK_DIALOG(dialog))) {
168	printf("user clicked cancel\n");
169	gtk_widget_destroy(dialog);
170	return;
171	}
172
173	printf("user clicked ok\n");
174
175	/* get role from dialog */
176	char *ptr = NULL;
177
178	if(GTK_IS_COMBO_BOX(entry))
179	ptr = gtk_combo_box_get_active_text(GTK_COMBO_BOX(entry));
180	else
181	ptr = (char*)gtk_entry_get_text(GTK_ENTRY(entry));
182
183	char *role = NULL;
184	if(ptr && strlen(ptr)) role = g_strdup(ptr);
185
186	gtk_widget_destroy(dialog);
187
188	/* search end of member chain */
189	member_t **memberP = &relation->member;
190	while(memberP) memberP = &(memberP)->next;
191
192	/* create new member */
193	*memberP = g_new0(member_t, 1);
194	(*memberP)->type = item->type;
195	(*memberP)->role = role;
196	switch(item->type) {
197	case NODE:
198	(*memberP)->node = item->node;
199	break;
200	case WAY:
201	(*memberP)->way = item->way;
202	break;
203	case RELATION:
204	(*memberP)->relation = item->relation;
205	break;
206	default:
207	g_assert((item->type == NODE)\|\|(item->type == WAY)\|\|
208	(item->type == RELATION));
209	break;
210	}
211
212	relation->flags \|= OSM_FLAG_DIRTY;
213	}
214
215	static void on_relation_add(GtkWidget but, relitem_context_t context) {
216	/* open a dialog where the user can pick from a list of all */
217	/* relations */
218	}
219
220	static relation_t get_selection(relitem_context_t context) {
221	GtkTreeSelection *selection;
222	GtkTreeModel *model;
223	GtkTreeIter iter;
224
225	selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));
226	if(gtk_tree_selection_get_selected(selection, &model, &iter)) {
227	relation_t *relation;
228	gtk_tree_model_get(model, &iter, RELITEM_COL_DATA, &relation, -1);
229	return(relation);
230	}
231	return NULL;
232	}
233
234	static void on_relation_edit(GtkWidget but, relitem_context_t context) {
235	relation_t *sel = get_selection(context);
236	if(!sel) return;
237
238	printf("edit relation #%ld\n", sel->id);
239
240	info_dialog(context->dialog, context->appdata, sel);
241	}
242
243	static void on_relation_remove(GtkWidget but, relitem_context_t context) {
244	relation_t *sel = get_selection(context);
245	if(!sel) return;
246
247	printf("remove relation #%ld\n", sel->id);
248	}
249
250	static void
251	relitem_toggled(GtkCellRendererToggle cell, const gchar path_str,
252	relitem_context_t *context) {
253	GtkTreePath *path;
254	GtkTreeIter iter;
255
256	path = gtk_tree_path_new_from_string(path_str);
257	gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store), &iter, path);
258
259	/* get current enabled flag */
260	gboolean enabled;
261	gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter,
262	RELITEM_COL_SELECTED, &enabled, -1);
263
264	/* change it and store it */
265	enabled = !enabled;
266	gtk_list_store_set(context->store, &iter, RELITEM_COL_SELECTED, enabled, -1);
267
268	gtk_tree_path_free(path);
269	}
270
271	static gboolean relitem_is_in_relation(relation_item_t item, relation_t relation) {
272	member_t *member = relation->member;
273	while(member) {
274	switch(member->type) {
275
276	case NODE:
277	if((item->type == NODE) && (item->node == member->node))
278	return TRUE;
279	break;
280
281	case WAY:
282	if((item->type == WAY) && (item->way == member->way))
283	return TRUE;
284	break;
285
286	default:
287	break;
288	}
289	member = member->next;
290	}
291	return FALSE;
292	}
293
294	static char relitem_get_role_in_relation(relation_item_t item, relation_t *relation) {
295	member_t *member = relation->member;
296	while(member) {
297	switch(member->type) {
298
299	case NODE:
300	if((item->type == NODE) && (item->node == member->node))
301	return member->role;
302	break;
303
304	case WAY:
305	if((item->type == WAY) && (item->way == member->way))
306	return member->role;
307	break;
308
309	default:
310	break;
311	}
312	member = member->next;
313	}
314	return NULL;
315	}
316
317	static GtkWidget relation_list(relitem_context_t context) {
318	GtkWidget *vbox = gtk_vbox_new(FALSE,3);
319	context->view = gtk_tree_view_new();
320
321	gtk_tree_selection_set_select_function(
322	gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view)),
323	relation_list_selection_func,
324	context, NULL);
325
326
327	/* --- "selected" column --- */
328	GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
329	g_signal_connect(renderer, "toggled", G_CALLBACK(relitem_toggled), context);
330	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
331	-1, _(""), renderer,
332	"active", RELITEM_COL_SELECTED,
333	NULL);
334
335	/* --- "Type" column --- */
336	renderer = gtk_cell_renderer_text_new();
337	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
338	-1, _("Type"), renderer, "text", RELITEM_COL_TYPE, NULL);
339
340	/* --- "Role" column --- */
341	renderer = gtk_cell_renderer_text_new();
342	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
343	-1, _("Role"), renderer, "text", RELITEM_COL_ROLE, NULL);
344
345	/* --- "Name" column --- */
346	renderer = gtk_cell_renderer_text_new();
347	g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
348	GtkTreeViewColumn *column =
349	gtk_tree_view_column_new_with_attributes(_("Name"), renderer,
350	"text", RELITEM_COL_NAME, NULL);
351	gtk_tree_view_column_set_expand(column, TRUE);
352	gtk_tree_view_insert_column(GTK_TREE_VIEW(context->view), column, -1);
353
354
355	/* build and fill the store */
356	context->store = gtk_list_store_new(RELITEM_NUM_COLS,
357	G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_STRING,
358	G_TYPE_STRING, G_TYPE_POINTER);
359
360	gtk_tree_view_set_model(GTK_TREE_VIEW(context->view),
361	GTK_TREE_MODEL(context->store));
362
363	GtkTreeIter iter;
364	relation_t *relation = context->appdata->osm->relation;
365	while(relation) {
366	/* try to find something descriptive */
367	char *name = osm_tag_get_by_key(relation->tag, "name");
368	if(!name) name = osm_tag_get_by_key(relation->tag, "ref");
369
370	/* Append a row and fill in some data */
371	gtk_list_store_append(context->store, &iter);
372	gtk_list_store_set(context->store, &iter,
373	RELITEM_COL_SELECTED, relitem_is_in_relation(context->item, relation),
374	RELITEM_COL_TYPE, osm_tag_get_by_key(relation->tag, "type"),
375	RELITEM_COL_ROLE, relitem_get_role_in_relation(context->item, relation),
376	RELITEM_COL_NAME, name,
377	RELITEM_COL_DATA, relation,
378	-1);
379
380	relation = relation->next;
381	}
382
383	g_object_unref(context->store);
384
385	/* put it into a scrolled window */
386	GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
387	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
388	GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
389	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window),
390	GTK_SHADOW_ETCHED_IN);
391	gtk_container_add(GTK_CONTAINER(scrolled_window), context->view);
392
393	gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
394
395	/* ------- button box ------------ */
396
397	GtkWidget *hbox = gtk_hbox_new(TRUE,3);
398
399	context->but_add = gtk_button_new_with_label(_("Add..."));
400	gtk_widget_set_sensitive(context->but_add, FALSE);
401	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_add);
402	gtk_signal_connect(GTK_OBJECT(context->but_add), "clicked",
403	GTK_SIGNAL_FUNC(on_relation_add), context);
404
405	context->but_edit = gtk_button_new_with_label(_("Edit..."));
406	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_edit);
407	gtk_signal_connect(GTK_OBJECT(context->but_edit), "clicked",
408	GTK_SIGNAL_FUNC(on_relation_edit), context);
409
410	context->but_remove = gtk_button_new_with_label(_("Remove"));
411	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_remove);
412	gtk_signal_connect(GTK_OBJECT(context->but_remove), "clicked",
413	GTK_SIGNAL_FUNC(on_relation_remove), context);
414
415	relation_list_selected(context, FALSE);
416
417	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
418	return vbox;
419	}
420
421	void relation_add_dialog(appdata_t appdata, relation_item_t relitem) {
422	relitem_context_t *context = g_new0(relitem_context_t, 1);
423	map_t *map = appdata->map;
424	g_assert(map);
425
426	context->appdata = appdata;
427	context->item = relitem;
428
429	char *str = NULL;
430	switch(relitem->type) {
431	case NODE:
432	str = g_strdup_printf(_("Relations for node #%ld"), relitem->node->id);
433	break;
434	case WAY:
435	str = g_strdup_printf(_("Relations for way #%ld"), relitem->way->id);
436	break;
437	default:
438	g_assert((relitem->type == NODE) \|\| (relitem->type == WAY));
439	break;
440	}
441
442	context->dialog = gtk_dialog_new_with_buttons(str,
443	GTK_WINDOW(appdata->window), GTK_DIALOG_MODAL,
444	GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
445	GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
446	NULL);
447	g_free(str);
448
449	gtk_dialog_set_default_response(GTK_DIALOG(context->dialog),
450	GTK_RESPONSE_ACCEPT);
451
452	/* making the dialog a little wider makes it less "crowded" */
453	#ifdef USE_HILDON
454	gtk_window_set_default_size(GTK_WINDOW(context->dialog), 500, 300);
455	#else
456	gtk_window_set_default_size(GTK_WINDOW(context->dialog), 400, 200);
457	#endif
458	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(context->dialog)->vbox),
459	relation_list(context), TRUE, TRUE, 0);
460
461	/* ----------------------------------- */
462
463	gtk_widget_show_all(context->dialog);
464	if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_ACCEPT) {
465	printf("accepting new relation memberships\n");
466
467	/* walk the entire store to get all values */
468	GtkTreeIter iter;
469	gboolean loop = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(context->store), &iter);
470	while(loop) {
471	gboolean enabled;
472	relation_t *relation;
473
474	gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter,
475	RELITEM_COL_SELECTED, &enabled,
476	RELITEM_COL_DATA, &relation,
477	-1);
478
479
480	if(relation && (enabled != relitem_is_in_relation(relitem, relation))) {
481	printf("membership for relation #%ld has changed to %s\n",
482	relation->id, enabled?"yes":"no");
483
484	if(!enabled) relation_remove_item(relation, relitem);
485	else relation_add_item(context->dialog, relation, relitem);
486	}
487
488	loop = gtk_tree_model_iter_next(GTK_TREE_MODEL(context->store), &iter);
489	}
490	}
491
492	gtk_widget_destroy(context->dialog);
493
494	g_free(context);
495	}