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
};

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

static gboolean 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 FALSE;
  }
  
  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;
  return TRUE;
}

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);
}

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 on_relation_add(GtkWidget *but, relitem_context_t *context) {
  /* create a new relation */

  relation_t *relation = osm_relation_new();
  if(!info_dialog(context->dialog, context->appdata, relation)) {
    printf("tag edit cancelled\n");
    osm_relation_free(relation);
  } else {
    osm_relation_attach(context->appdata->osm, relation);

    /* add to list */

    /* append a row for the new data */
    /* 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");

    GtkTreeIter iter;
    gtk_list_store_append(context->store, &iter);
    gtk_list_store_set(context->store, &iter,
                       RELITEM_COL_SELECTED, FALSE,
                       RELITEM_COL_TYPE, 
                       osm_tag_get_by_key(relation->tag, "type"),
                       RELITEM_COL_NAME, name,
                       RELITEM_COL_DATA, relation,
                       -1);

    gtk_tree_selection_select_iter(gtk_tree_view_get_selection(
               GTK_TREE_VIEW(context->view)), &iter);

    /* scroll to end */
    //    GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment();
    /* xyz */
  }
}

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 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 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);
  gtk_tree_path_free(path);

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

  if(!enabled) {
    printf("will now become be part of this relation\n");
    if(relation_add_item(context->dialog, relation, context->item))
      gtk_list_store_set(context->store, &iter, 
                 RELITEM_COL_SELECTED, TRUE, 
                 RELITEM_COL_ROLE, 
                 relitem_get_role_in_relation(context->item, relation),
                 -1);
  } else {
    printf("item will not be part of this relation anymore\n");
    relation_remove_item(relation, context->item);
    gtk_list_store_set(context->store, &iter, 
                       RELITEM_COL_SELECTED, FALSE, 
                       RELITEM_COL_ROLE, NULL, 
                       -1);
  }
}

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 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_CLOSE, GTK_RESPONSE_CLOSE, 
        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);
  gtk_dialog_run(GTK_DIALOG(context->dialog));
  gtk_widget_destroy(context->dialog);

  g_free(context);
}
1	harbaum	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			typedef struct role_chain_s {
42			char *role;
43			struct role_chain_s *next;
44			} role_chain_t;
45
46	harbaum	73	static gboolean relation_add_item(GtkWidget *parent,
47	harbaum	1	relation_t relation, relation_item_t item) {
48			role_chain_t chain = NULL, *chainP = &chain;
49
50			printf("add item of type %d to relation #%ld\n",
51			item->type, relation->id);
52
53			/* ask the user for the role of the new item in this relation */
54
55			/* collect roles first */
56			member_t *member = relation->member;
57			while(member) {
58			if(member->role) {
59			/* check if this role has already been saved */
60			gboolean already_stored = FALSE;
61			role_chain_t *crole = chain;
62			while(crole) {
63			if(strcasecmp(crole->role, member->role) == 0) already_stored = TRUE;
64			crole = crole->next;
65			}
66
67			/* not stored yet: attach it */
68			if(!already_stored) {
69			*chainP = g_new0(role_chain_t, 1);
70			(*chainP)->role = g_strdup(member->role);
71			chainP = &(*chainP)->next;
72			}
73			}
74			member = member->next;
75			}
76
77			/* ------------------ role dialog ---------------- */
78			GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Select role"),
79			GTK_WINDOW(parent), GTK_DIALOG_MODAL,
80			GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
81			GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
82			NULL);
83
84			gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
85
86			char *type = osm_tag_get_by_key(relation->tag, "type");
87
88			char *info_str = NULL;
89			if(type) info_str = g_strdup_printf(_("In relation of type: %s"), type);
90			else info_str = g_strdup_printf(_("In relation #%ld"), relation->id);
91			gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
92			gtk_label_new(info_str));
93			g_free(info_str);
94
95			char *name = osm_tag_get_by_key(relation->tag, "name");
96			if(name)
97			gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox),
98			gtk_label_new(name));
99
100			GtkWidget *hbox = gtk_hbox_new(FALSE, 8);
101			gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(_("Role:")));
102
103			GtkWidget *entry = NULL;
104			if(chain) {
105			entry = gtk_combo_box_entry_new_text();
106
107			/* fill combo box with presets */
108			while(chain) {
109			role_chain_t *next = chain->next;
110			gtk_combo_box_append_text(GTK_COMBO_BOX(entry), chain->role);
111			g_free(chain);
112			chain = next;
113			}
114			} else
115			entry = gtk_entry_new();
116
117			gtk_box_pack_start_defaults(GTK_BOX(hbox), entry);
118			gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
119
120			gtk_widget_show_all(dialog);
121			if(GTK_RESPONSE_ACCEPT != gtk_dialog_run(GTK_DIALOG(dialog))) {
122			printf("user clicked cancel\n");
123			gtk_widget_destroy(dialog);
124	harbaum	73	return FALSE;
125	harbaum	1	}
126
127			printf("user clicked ok\n");
128
129			/* get role from dialog */
130			char *ptr = NULL;
131
132			if(GTK_IS_COMBO_BOX(entry))
133			ptr = gtk_combo_box_get_active_text(GTK_COMBO_BOX(entry));
134			else
135			ptr = (char*)gtk_entry_get_text(GTK_ENTRY(entry));
136
137			char *role = NULL;
138			if(ptr && strlen(ptr)) role = g_strdup(ptr);
139
140			gtk_widget_destroy(dialog);
141
142			/* search end of member chain */
143			member_t **memberP = &relation->member;
144			while(memberP) memberP = &(memberP)->next;
145
146			/* create new member */
147			*memberP = g_new0(member_t, 1);
148			(*memberP)->type = item->type;
149			(*memberP)->role = role;
150			switch(item->type) {
151			case NODE:
152			(*memberP)->node = item->node;
153			break;
154			case WAY:
155			(*memberP)->way = item->way;
156			break;
157			case RELATION:
158			(*memberP)->relation = item->relation;
159			break;
160			default:
161			g_assert((item->type == NODE)\|\|(item->type == WAY)\|\|
162			(item->type == RELATION));
163			break;
164			}
165
166			relation->flags \|= OSM_FLAG_DIRTY;
167	harbaum	73	return TRUE;
168	harbaum	1	}
169
170	harbaum	73	static void relation_remove_item(relation_t relation, relation_item_t item) {
171
172			printf("remove item of type %d from relation #%ld\n",
173			item->type, relation->id);
174
175			member_t **member = &relation->member;
176			while(*member) {
177			if(((*member)->type == item->type) &&
178			(((item->type == NODE) && (item->node == (*member)->node)) \|\|
179			((item->type == WAY) && (item->way == (*member)->way)) \|\|
180			((item->type == RELATION) && (item->relation == (*member)->relation)))) {
181
182			member_t next = (member)->next;
183			osm_member_free(*member);
184			*member = next;
185
186			relation->flags \|= OSM_FLAG_DIRTY;
187
188			return;
189			} else
190			member = &(*member)->next;
191			}
192			g_assert(0);
193			}
194
195			static void relation_list_selected(relitem_context_t *context,
196			gboolean selected) {
197
198			if(context->but_remove)
199			gtk_widget_set_sensitive(context->but_remove, FALSE);
200			if(context->but_edit)
201			gtk_widget_set_sensitive(context->but_edit, selected);
202			}
203
204			static gboolean
205			relation_list_selection_func(GtkTreeSelection selection, GtkTreeModel model,
206			GtkTreePath *path, gboolean path_currently_selected,
207			gpointer userdata) {
208			relitem_context_t context = (relitem_context_t)userdata;
209			GtkTreeIter iter;
210
211			if(gtk_tree_model_get_iter(model, &iter, path)) {
212			g_assert(gtk_tree_path_get_depth(path) == 1);
213			relation_list_selected(context, TRUE);
214			}
215
216			return TRUE; /* allow selection state to change */
217			}
218
219	harbaum	1	static void on_relation_add(GtkWidget but, relitem_context_t context) {
220	harbaum	73	/* create a new relation */
221
222			relation_t *relation = osm_relation_new();
223			if(!info_dialog(context->dialog, context->appdata, relation)) {
224			printf("tag edit cancelled\n");
225			osm_relation_free(relation);
226			} else {
227			osm_relation_attach(context->appdata->osm, relation);
228
229			/* add to list */
230
231			/* append a row for the new data */
232			/* try to find something descriptive */
233			char *name = osm_tag_get_by_key(relation->tag, "name");
234			if(!name) name = osm_tag_get_by_key(relation->tag, "ref");
235
236			GtkTreeIter iter;
237			gtk_list_store_append(context->store, &iter);
238			gtk_list_store_set(context->store, &iter,
239			RELITEM_COL_SELECTED, FALSE,
240			RELITEM_COL_TYPE,
241			osm_tag_get_by_key(relation->tag, "type"),
242			RELITEM_COL_NAME, name,
243			RELITEM_COL_DATA, relation,
244			-1);
245
246			gtk_tree_selection_select_iter(gtk_tree_view_get_selection(
247			GTK_TREE_VIEW(context->view)), &iter);
248
249			/* scroll to end */
250			// GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment();
251			/* xyz */
252			}
253	harbaum	1	}
254
255			static relation_t get_selection(relitem_context_t context) {
256			GtkTreeSelection *selection;
257			GtkTreeModel *model;
258			GtkTreeIter iter;
259
260			selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));
261			if(gtk_tree_selection_get_selected(selection, &model, &iter)) {
262			relation_t *relation;
263			gtk_tree_model_get(model, &iter, RELITEM_COL_DATA, &relation, -1);
264			return(relation);
265			}
266			return NULL;
267			}
268
269			static void on_relation_edit(GtkWidget but, relitem_context_t context) {
270			relation_t *sel = get_selection(context);
271			if(!sel) return;
272
273			printf("edit relation #%ld\n", sel->id);
274
275			info_dialog(context->dialog, context->appdata, sel);
276			}
277
278			static void on_relation_remove(GtkWidget but, relitem_context_t context) {
279			relation_t *sel = get_selection(context);
280			if(!sel) return;
281
282			printf("remove relation #%ld\n", sel->id);
283			}
284
285	harbaum	73	static char relitem_get_role_in_relation(relation_item_t item, relation_t *relation) {
286			member_t *member = relation->member;
287			while(member) {
288			switch(member->type) {
289
290			case NODE:
291			if((item->type == NODE) && (item->node == member->node))
292			return member->role;
293			break;
294
295			case WAY:
296			if((item->type == WAY) && (item->way == member->way))
297			return member->role;
298			break;
299
300			default:
301			break;
302			}
303			member = member->next;
304			}
305			return NULL;
306			}
307
308	harbaum	1	static void
309			relitem_toggled(GtkCellRendererToggle cell, const gchar path_str,
310			relitem_context_t *context) {
311			GtkTreePath *path;
312			GtkTreeIter iter;
313
314			path = gtk_tree_path_new_from_string(path_str);
315			gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store), &iter, path);
316	harbaum	73	gtk_tree_path_free(path);
317	harbaum	1
318			/* get current enabled flag */
319			gboolean enabled;
320	harbaum	73	relation_t *relation = NULL;
321	harbaum	1	gtk_tree_model_get(GTK_TREE_MODEL(context->store), &iter,
322	harbaum	73	RELITEM_COL_SELECTED, &enabled,
323			RELITEM_COL_DATA, &relation,
324			-1);
325	harbaum	1
326	harbaum	73	if(!enabled) {
327			printf("will now become be part of this relation\n");
328			if(relation_add_item(context->dialog, relation, context->item))
329			gtk_list_store_set(context->store, &iter,
330			RELITEM_COL_SELECTED, TRUE,
331			RELITEM_COL_ROLE,
332			relitem_get_role_in_relation(context->item, relation),
333			-1);
334			} else {
335			printf("item will not be part of this relation anymore\n");
336			relation_remove_item(relation, context->item);
337			gtk_list_store_set(context->store, &iter,
338			RELITEM_COL_SELECTED, FALSE,
339			RELITEM_COL_ROLE, NULL,
340			-1);
341			}
342	harbaum	1	}
343
344			static gboolean relitem_is_in_relation(relation_item_t item, relation_t relation) {
345			member_t *member = relation->member;
346			while(member) {
347			switch(member->type) {
348
349			case NODE:
350			if((item->type == NODE) && (item->node == member->node))
351			return TRUE;
352			break;
353
354			case WAY:
355			if((item->type == WAY) && (item->way == member->way))
356			return TRUE;
357			break;
358
359			default:
360			break;
361			}
362			member = member->next;
363			}
364			return FALSE;
365			}
366
367			static GtkWidget relation_list(relitem_context_t context) {
368			GtkWidget *vbox = gtk_vbox_new(FALSE,3);
369			context->view = gtk_tree_view_new();
370
371			gtk_tree_selection_set_select_function(
372			gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view)),
373			relation_list_selection_func,
374			context, NULL);
375
376
377			/* --- "selected" column --- */
378			GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
379			g_signal_connect(renderer, "toggled", G_CALLBACK(relitem_toggled), context);
380			gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
381			-1, _(""), renderer,
382			"active", RELITEM_COL_SELECTED,
383			NULL);
384
385			/* --- "Type" column --- */
386			renderer = gtk_cell_renderer_text_new();
387			gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
388			-1, _("Type"), renderer, "text", RELITEM_COL_TYPE, NULL);
389
390			/* --- "Role" column --- */
391			renderer = gtk_cell_renderer_text_new();
392			gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
393			-1, _("Role"), renderer, "text", RELITEM_COL_ROLE, NULL);
394
395			/* --- "Name" column --- */
396			renderer = gtk_cell_renderer_text_new();
397			g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
398			GtkTreeViewColumn *column =
399			gtk_tree_view_column_new_with_attributes(_("Name"), renderer,
400			"text", RELITEM_COL_NAME, NULL);
401			gtk_tree_view_column_set_expand(column, TRUE);
402			gtk_tree_view_insert_column(GTK_TREE_VIEW(context->view), column, -1);
403
404
405			/* build and fill the store */
406			context->store = gtk_list_store_new(RELITEM_NUM_COLS,
407			G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_STRING,
408			G_TYPE_STRING, G_TYPE_POINTER);
409
410			gtk_tree_view_set_model(GTK_TREE_VIEW(context->view),
411			GTK_TREE_MODEL(context->store));
412
413			GtkTreeIter iter;
414			relation_t *relation = context->appdata->osm->relation;
415			while(relation) {
416			/* try to find something descriptive */
417			char *name = osm_tag_get_by_key(relation->tag, "name");
418			if(!name) name = osm_tag_get_by_key(relation->tag, "ref");
419
420			/* Append a row and fill in some data */
421			gtk_list_store_append(context->store, &iter);
422			gtk_list_store_set(context->store, &iter,
423			RELITEM_COL_SELECTED, relitem_is_in_relation(context->item, relation),
424			RELITEM_COL_TYPE, osm_tag_get_by_key(relation->tag, "type"),
425			RELITEM_COL_ROLE, relitem_get_role_in_relation(context->item, relation),
426			RELITEM_COL_NAME, name,
427			RELITEM_COL_DATA, relation,
428			-1);
429
430			relation = relation->next;
431			}
432
433			g_object_unref(context->store);
434
435			/* put it into a scrolled window */
436			GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
437			gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
438			GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
439			gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window),
440			GTK_SHADOW_ETCHED_IN);
441			gtk_container_add(GTK_CONTAINER(scrolled_window), context->view);
442
443			gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
444
445			/* ------- button box ------------ */
446
447			GtkWidget *hbox = gtk_hbox_new(TRUE,3);
448
449			context->but_add = gtk_button_new_with_label(_("Add..."));
450	harbaum	73	// gtk_widget_set_sensitive(context->but_add, FALSE);
451	harbaum	1	gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_add);
452			gtk_signal_connect(GTK_OBJECT(context->but_add), "clicked",
453			GTK_SIGNAL_FUNC(on_relation_add), context);
454
455			context->but_edit = gtk_button_new_with_label(_("Edit..."));
456			gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_edit);
457			gtk_signal_connect(GTK_OBJECT(context->but_edit), "clicked",
458			GTK_SIGNAL_FUNC(on_relation_edit), context);
459
460			context->but_remove = gtk_button_new_with_label(_("Remove"));
461			gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_remove);
462			gtk_signal_connect(GTK_OBJECT(context->but_remove), "clicked",
463			GTK_SIGNAL_FUNC(on_relation_remove), context);
464
465			relation_list_selected(context, FALSE);
466
467			gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
468			return vbox;
469			}
470
471			void relation_add_dialog(appdata_t appdata, relation_item_t relitem) {
472			relitem_context_t *context = g_new0(relitem_context_t, 1);
473			map_t *map = appdata->map;
474			g_assert(map);
475
476			context->appdata = appdata;
477			context->item = relitem;
478
479			char *str = NULL;
480			switch(relitem->type) {
481			case NODE:
482			str = g_strdup_printf(_("Relations for node #%ld"), relitem->node->id);
483			break;
484			case WAY:
485			str = g_strdup_printf(_("Relations for way #%ld"), relitem->way->id);
486			break;
487			default:
488			g_assert((relitem->type == NODE) \|\| (relitem->type == WAY));
489			break;
490			}
491
492			context->dialog = gtk_dialog_new_with_buttons(str,
493			GTK_WINDOW(appdata->window), GTK_DIALOG_MODAL,
494	harbaum	73	GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
495	harbaum	1	NULL);
496			g_free(str);
497
498			gtk_dialog_set_default_response(GTK_DIALOG(context->dialog),
499			GTK_RESPONSE_ACCEPT);
500
501			/* making the dialog a little wider makes it less "crowded" */
502			#ifdef USE_HILDON
503			gtk_window_set_default_size(GTK_WINDOW(context->dialog), 500, 300);
504			#else
505			gtk_window_set_default_size(GTK_WINDOW(context->dialog), 400, 200);
506			#endif
507			gtk_box_pack_start(GTK_BOX(GTK_DIALOG(context->dialog)->vbox),
508			relation_list(context), TRUE, TRUE, 0);
509
510			/* ----------------------------------- */
511
512			gtk_widget_show_all(context->dialog);
513	harbaum	73	gtk_dialog_run(GTK_DIALOG(context->dialog));
514	harbaum	1	gtk_widget_destroy(context->dialog);
515
516			g_free(context);
517			}