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) {

  if(context->but_remove)
    gtk_widget_set_sensitive(context->but_remove, FALSE);
  if(context->but_edit)
    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
44	if(context->but_remove)
45	gtk_widget_set_sensitive(context->but_remove, FALSE);
46	if(context->but_edit)
47	gtk_widget_set_sensitive(context->but_edit, selected);
48	}
49
50	static gboolean
51	relation_list_selection_func(GtkTreeSelection selection, GtkTreeModel model,
52	GtkTreePath *path, gboolean path_currently_selected,
53	gpointer userdata) {
54	relitem_context_t context = (relitem_context_t)userdata;
55	GtkTreeIter iter;
56
57	if(gtk_tree_model_get_iter(model, &iter, path)) {
58	g_assert(gtk_tree_path_get_depth(path) == 1);
59	relation_list_selected(context, TRUE);
60	}
61
62	return TRUE; /* allow selection state to change */
63	}
64
65	static void relation_remove_item(relation_t relation, relation_item_t item) {
66
67	printf("remove item of type %d from relation #%ld\n",
68	item->type, relation->id);
69
70	member_t **member = &relation->member;
71	while(*member) {
72	if(((*member)->type == item->type) &&
73	(((item->type == NODE) && (item->node == (*member)->node)) \|\|
74	((item->type == WAY) && (item->way == (*member)->way)) \|\|
75	((item->type == RELATION) && (item->relation == (*member)->relation)))) {
76
77	member_t next = (member)->next;
78	osm_member_free(*member);
79	*member = next;
80
81	relation->flags \|= OSM_FLAG_DIRTY;
82
83	return;
84	} else
85	member = &(*member)->next;
86	}
87	g_assert(0);
88	}
89
90	typedef struct role_chain_s {
91	char *role;
92	struct role_chain_s *next;
93	} role_chain_t;
94
95	static void relation_add_item(GtkWidget *parent,
96	relation_t relation, relation_item_t item) {
97	role_chain_t chain = NULL, *chainP = &chain;
98
99	printf("add item of type %d to relation #%ld\n",
100	item->type, relation->id);
101
102	/* ask the user for the role of the new item in this relation */
103
104	/* collect roles first */
105	member_t *member = relation->member;
106	while(member) {
107	if(member->role) {
108	/* check if this role has already been saved */
109	gboolean already_stored = FALSE;
110	role_chain_t *crole = chain;
111	while(crole) {
112	if(strcasecmp(crole->role, member->role) == 0) already_stored = TRUE;
113	crole = crole->next;
114	}
115
116	/* not stored yet: attach it */
117	if(!already_stored) {
118	*chainP = g_new0(role_chain_t, 1);
119	(*chainP)->role = g_strdup(member->role);
120	chainP = &(*chainP)->next;
121	}
122	}
123	member = member->next;
124	}
125
126	/* ------------------ role dialog ---------------- */
127	GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Select role"),
128	GTK_WINDOW(parent), GTK_DIALOG_MODAL,
129	GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
130	GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
131	NULL);
132
133	gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
134
135	char *type = osm_tag_get_by_key(relation->tag, "type");
136
137	char *info_str = NULL;
138	if(type) info_str = g_strdup_printf(_("In relation of type: %s"), type);
139	else info_str = g_strdup_printf(_("In relation #%ld"), relation->id);
140	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
141	gtk_label_new(info_str));
142	g_free(info_str);
143
144	char *name = osm_tag_get_by_key(relation->tag, "name");
145	if(name)
146	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
147	gtk_label_new(name));
148
149	GtkWidget *hbox = gtk_hbox_new(FALSE, 8);
150	gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(_("Role:")));
151
152	GtkWidget *entry = NULL;
153	if(chain) {
154	entry = gtk_combo_box_entry_new_text();
155
156	/* fill combo box with presets */
157	while(chain) {
158	role_chain_t *next = chain->next;
159	gtk_combo_box_append_text(GTK_COMBO_BOX(entry), chain->role);
160	g_free(chain);
161	chain = next;
162	}
163	} else
164	entry = gtk_entry_new();
165
166	gtk_box_pack_start_defaults(GTK_BOX(hbox), entry);
167	gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
168
169	gtk_widget_show_all(dialog);
170	if(GTK_RESPONSE_ACCEPT != gtk_dialog_run(GTK_DIALOG(dialog))) {
171	printf("user clicked cancel\n");
172	gtk_widget_destroy(dialog);
173	return;
174	}
175
176	printf("user clicked ok\n");
177
178	/* get role from dialog */
179	char *ptr = NULL;
180
181	if(GTK_IS_COMBO_BOX(entry))
182	ptr = gtk_combo_box_get_active_text(GTK_COMBO_BOX(entry));
183	else
184	ptr = (char*)gtk_entry_get_text(GTK_ENTRY(entry));
185
186	char *role = NULL;
187	if(ptr && strlen(ptr)) role = g_strdup(ptr);
188
189	gtk_widget_destroy(dialog);
190
191	/* search end of member chain */
192	member_t **memberP = &relation->member;
193	while(memberP) memberP = &(memberP)->next;
194
195	/* create new member */
196	*memberP = g_new0(member_t, 1);
197	(*memberP)->type = item->type;
198	(*memberP)->role = role;
199	switch(item->type) {
200	case NODE:
201	(*memberP)->node = item->node;
202	break;
203	case WAY:
204	(*memberP)->way = item->way;
205	break;
206	case RELATION:
207	(*memberP)->relation = item->relation;
208	break;
209	default:
210	g_assert((item->type == NODE)\|\|(item->type == WAY)\|\|
211	(item->type == RELATION));
212	break;
213	}
214
215	relation->flags \|= OSM_FLAG_DIRTY;
216	}
217
218	static void on_relation_add(GtkWidget but, relitem_context_t context) {
219	/* open a dialog where the user can pick from a list of all */
220	/* relations */
221	}
222
223	static relation_t get_selection(relitem_context_t context) {
224	GtkTreeSelection *selection;
225	GtkTreeModel *model;
226	GtkTreeIter iter;
227
228	selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));
229	if(gtk_tree_selection_get_selected(selection, &model, &iter)) {
230	relation_t *relation;
231	gtk_tree_model_get(model, &iter, RELITEM_COL_DATA, &relation, -1);
232	return(relation);
233	}
234	return NULL;
235	}
236
237	static void on_relation_edit(GtkWidget but, relitem_context_t context) {
238	relation_t *sel = get_selection(context);
239	if(!sel) return;
240
241	printf("edit relation #%ld\n", sel->id);
242
243	info_dialog(context->dialog, context->appdata, sel);
244	}
245
246	static void on_relation_remove(GtkWidget but, relitem_context_t context) {
247	relation_t *sel = get_selection(context);
248	if(!sel) return;
249
250	printf("remove relation #%ld\n", sel->id);
251	}
252
253	static void
254	relitem_toggled(GtkCellRendererToggle cell, const gchar path_str,
255	relitem_context_t *context) {
256	GtkTreePath *path;
257	GtkTreeIter iter;
258
259	path = gtk_tree_path_new_from_string(path_str);
260	gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store), &iter, path);
261
262	/* get current enabled flag */
263	gboolean enabled;
264	gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter,
265	RELITEM_COL_SELECTED, &enabled, -1);
266
267	/* change it and store it */
268	enabled = !enabled;
269	gtk_list_store_set(context->store, &iter, RELITEM_COL_SELECTED, enabled, -1);
270
271	gtk_tree_path_free(path);
272	}
273
274	static gboolean relitem_is_in_relation(relation_item_t item, relation_t relation) {
275	member_t *member = relation->member;
276	while(member) {
277	switch(member->type) {
278
279	case NODE:
280	if((item->type == NODE) && (item->node == member->node))
281	return TRUE;
282	break;
283
284	case WAY:
285	if((item->type == WAY) && (item->way == member->way))
286	return TRUE;
287	break;
288
289	default:
290	break;
291	}
292	member = member->next;
293	}
294	return FALSE;
295	}
296
297	static char relitem_get_role_in_relation(relation_item_t item, relation_t *relation) {
298	member_t *member = relation->member;
299	while(member) {
300	switch(member->type) {
301
302	case NODE:
303	if((item->type == NODE) && (item->node == member->node))
304	return member->role;
305	break;
306
307	case WAY:
308	if((item->type == WAY) && (item->way == member->way))
309	return member->role;
310	break;
311
312	default:
313	break;
314	}
315	member = member->next;
316	}
317	return NULL;
318	}
319
320	static GtkWidget relation_list(relitem_context_t context) {
321	GtkWidget *vbox = gtk_vbox_new(FALSE,3);
322	context->view = gtk_tree_view_new();
323
324	gtk_tree_selection_set_select_function(
325	gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view)),
326	relation_list_selection_func,
327	context, NULL);
328
329
330	/* --- "selected" column --- */
331	GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
332	g_signal_connect(renderer, "toggled", G_CALLBACK(relitem_toggled), context);
333	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
334	-1, _(""), renderer,
335	"active", RELITEM_COL_SELECTED,
336	NULL);
337
338	/* --- "Type" column --- */
339	renderer = gtk_cell_renderer_text_new();
340	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
341	-1, _("Type"), renderer, "text", RELITEM_COL_TYPE, NULL);
342
343	/* --- "Role" column --- */
344	renderer = gtk_cell_renderer_text_new();
345	gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
346	-1, _("Role"), renderer, "text", RELITEM_COL_ROLE, NULL);
347
348	/* --- "Name" column --- */
349	renderer = gtk_cell_renderer_text_new();
350	g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
351	GtkTreeViewColumn *column =
352	gtk_tree_view_column_new_with_attributes(_("Name"), renderer,
353	"text", RELITEM_COL_NAME, NULL);
354	gtk_tree_view_column_set_expand(column, TRUE);
355	gtk_tree_view_insert_column(GTK_TREE_VIEW(context->view), column, -1);
356
357
358	/* build and fill the store */
359	context->store = gtk_list_store_new(RELITEM_NUM_COLS,
360	G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_STRING,
361	G_TYPE_STRING, G_TYPE_POINTER);
362
363	gtk_tree_view_set_model(GTK_TREE_VIEW(context->view),
364	GTK_TREE_MODEL(context->store));
365
366	GtkTreeIter iter;
367	relation_t *relation = context->appdata->osm->relation;
368	while(relation) {
369	/* try to find something descriptive */
370	char *name = osm_tag_get_by_key(relation->tag, "name");
371	if(!name) name = osm_tag_get_by_key(relation->tag, "ref");
372
373	/* Append a row and fill in some data */
374	gtk_list_store_append(context->store, &iter);
375	gtk_list_store_set(context->store, &iter,
376	RELITEM_COL_SELECTED, relitem_is_in_relation(context->item, relation),
377	RELITEM_COL_TYPE, osm_tag_get_by_key(relation->tag, "type"),
378	RELITEM_COL_ROLE, relitem_get_role_in_relation(context->item, relation),
379	RELITEM_COL_NAME, name,
380	RELITEM_COL_DATA, relation,
381	-1);
382
383	relation = relation->next;
384	}
385
386	g_object_unref(context->store);
387
388	/* put it into a scrolled window */
389	GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
390	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
391	GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
392	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window),
393	GTK_SHADOW_ETCHED_IN);
394	gtk_container_add(GTK_CONTAINER(scrolled_window), context->view);
395
396	gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
397
398	/* ------- button box ------------ */
399
400	GtkWidget *hbox = gtk_hbox_new(TRUE,3);
401
402	context->but_add = gtk_button_new_with_label(_("Add..."));
403	gtk_widget_set_sensitive(context->but_add, FALSE);
404	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_add);
405	gtk_signal_connect(GTK_OBJECT(context->but_add), "clicked",
406	GTK_SIGNAL_FUNC(on_relation_add), context);
407
408	context->but_edit = gtk_button_new_with_label(_("Edit..."));
409	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_edit);
410	gtk_signal_connect(GTK_OBJECT(context->but_edit), "clicked",
411	GTK_SIGNAL_FUNC(on_relation_edit), context);
412
413	context->but_remove = gtk_button_new_with_label(_("Remove"));
414	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_remove);
415	gtk_signal_connect(GTK_OBJECT(context->but_remove), "clicked",
416	GTK_SIGNAL_FUNC(on_relation_remove), context);
417
418	relation_list_selected(context, FALSE);
419
420	gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
421	return vbox;
422	}
423
424	void relation_add_dialog(appdata_t appdata, relation_item_t relitem) {
425	relitem_context_t *context = g_new0(relitem_context_t, 1);
426	map_t *map = appdata->map;
427	g_assert(map);
428
429	context->appdata = appdata;
430	context->item = relitem;
431
432	char *str = NULL;
433	switch(relitem->type) {
434	case NODE:
435	str = g_strdup_printf(_("Relations for node #%ld"), relitem->node->id);
436	break;
437	case WAY:
438	str = g_strdup_printf(_("Relations for way #%ld"), relitem->way->id);
439	break;
440	default:
441	g_assert((relitem->type == NODE) \|\| (relitem->type == WAY));
442	break;
443	}
444
445	context->dialog = gtk_dialog_new_with_buttons(str,
446	GTK_WINDOW(appdata->window), GTK_DIALOG_MODAL,
447	GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
448	GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
449	NULL);
450	g_free(str);
451
452	gtk_dialog_set_default_response(GTK_DIALOG(context->dialog),
453	GTK_RESPONSE_ACCEPT);
454
455	/* making the dialog a little wider makes it less "crowded" */
456	#ifdef USE_HILDON
457	gtk_window_set_default_size(GTK_WINDOW(context->dialog), 500, 300);
458	#else
459	gtk_window_set_default_size(GTK_WINDOW(context->dialog), 400, 200);
460	#endif
461	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(context->dialog)->vbox),
462	relation_list(context), TRUE, TRUE, 0);
463
464	/* ----------------------------------- */
465
466	gtk_widget_show_all(context->dialog);
467	if(gtk_dialog_run(GTK_DIALOG(context->dialog)) == GTK_RESPONSE_ACCEPT) {
468	printf("accepting new relation memberships\n");
469
470	/* walk the entire store to get all values */
471	GtkTreeIter iter;
472	gboolean loop = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(context->store), &iter);
473	while(loop) {
474	gboolean enabled;
475	relation_t *relation;
476
477	gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter,
478	RELITEM_COL_SELECTED, &enabled,
479	RELITEM_COL_DATA, &relation,
480	-1);
481
482
483	if(relation && (enabled != relitem_is_in_relation(relitem, relation))) {
484	printf("membership for relation #%ld has changed to %s\n",
485	relation->id, enabled?"yes":"no");
486
487	if(!enabled) relation_remove_item(relation, relitem);
488	else relation_add_item(context->dialog, relation, relitem);
489	}
490
491	loop = gtk_tree_model_iter_next(GTK_TREE_MODEL(context->store), &iter);
492	}
493	}
494
495	gtk_widget_destroy(context->dialog);
496
497	g_free(context);
498	}