trunk/src/list.c

/*
 * Copyright (C) 2008-2009 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/>.
 */

/*
 * list.c - generic implementation of a list style widget:
 *          
 * +---------+-----------+
 * | Key     | Key       |
 * +---------+-----------+
 * | Test1    Test2     ^|
 * | Test3    Test4     #|
 * |                    ||
 * |                    v|
 * +---------------------+
 * ( Add )( Edit )(Remove)
 */

#include "appdata.h"

#include <stdarg.h>

typedef struct {
  GtkWidget *view;
  GtkMenu *menu;

  struct {
    gboolean(*func)(GtkTreeSelection *, GtkTreeModel *,
                    GtkTreePath *, gboolean,
                    gpointer);
    gpointer data;
  } sel;

  GtkWidget *table;

  struct {
    gpointer data;
    GtkWidget *widget[6];
    int flags;
  } button;

} list_priv_t;

#ifdef FREMANTLE_USE_POPUP

static void cmenu_init(GtkWidget *list) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  /* Create needed handles. */
  priv->menu = GTK_MENU(gtk_menu_new());

  gtk_widget_tap_and_hold_setup(priv->view, GTK_WIDGET(priv->menu), NULL, 0);
}

static GtkWidget *cmenu_append(GtkWidget *list, char *label, 
                               GCallback cb, gpointer data) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  GtkWidget *menu_item;

  /* Setup the map context menu. */
  gtk_menu_append(priv->menu, menu_item
                  = gtk_menu_item_new_with_label(label));

  hildon_gtk_widget_set_theme_size(menu_item, 
           (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));

  gtk_signal_connect(GTK_OBJECT(menu_item), "activate", 
                     GTK_SIGNAL_FUNC(cb), data);

  gtk_widget_show_all(GTK_WIDGET(priv->menu));

  return menu_item;
}

#endif

GtkWidget *list_get_view(GtkWidget *list) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);
  return priv->view;
}

/* a list supports up to three user defined buttons besides */
/* add, edit and remove */
void list_set_user_buttons(GtkWidget *list, ...) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  va_list ap;

  /* make space for user buttons */
  if(!(priv->button.flags & LIST_BTN_WIDE))
    gtk_table_resize(GTK_TABLE(priv->table), 2, 3);
  else
    gtk_table_resize(GTK_TABLE(priv->table), 1, 5);

  va_start(ap, list);
  list_button_t id = va_arg(ap, list_button_t);
  while(id) {
    char *label = va_arg(ap, char*);
    GCallback cb = va_arg(ap, GCallback);

    priv->button.widget[id] = button_new_with_label(label);
    if(!(priv->button.flags & LIST_BTN_WIDE))
      gtk_table_attach_defaults(GTK_TABLE(priv->table), priv->button.widget[id], 
                id-LIST_BUTTON_USER0, id-LIST_BUTTON_USER0+1, 1, 2);
    else
      gtk_table_attach_defaults(GTK_TABLE(priv->table), priv->button.widget[id], 
                3+id-LIST_BUTTON_USER0, 3+id-LIST_BUTTON_USER0+1, 0, 1);

    gtk_signal_connect(GTK_OBJECT(priv->button.widget[id]), "clicked", 
                       GTK_SIGNAL_FUNC(cb), priv->button.data);

    id = va_arg(ap, list_button_t);
  }

  va_end(ap);
}

void list_set_columns(GtkWidget *list, ...) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);
  va_list ap;

  va_start(ap, list);
  char *name = va_arg(ap, char*);
  while(name) {
    int hlkey = -1, key = va_arg(ap, int);
    int flags = va_arg(ap, int);

    if(flags & LIST_FLAG_CAN_HIGHLIGHT)
      hlkey = va_arg(ap, int);

    GtkTreeViewColumn *column = NULL;

    if(flags & LIST_FLAG_TOGGLE) {
      GCallback cb = va_arg(ap, GCallback);
      gpointer data = va_arg(ap, gpointer);

      GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
      column = gtk_tree_view_column_new_with_attributes(
                           name, renderer, "active", key, NULL);
      g_signal_connect(renderer, "toggled", cb, data);
    
    } else if(flags & LIST_FLAG_STOCK_ICON) {
      GtkCellRenderer *pixbuf_renderer = gtk_cell_renderer_pixbuf_new();
      column = gtk_tree_view_column_new_with_attributes(name,
                  pixbuf_renderer, "stock_id", key, NULL);
    } else {
      GtkCellRenderer *renderer = gtk_cell_renderer_text_new();

      if(flags & LIST_FLAG_CAN_HIGHLIGHT)
        g_object_set(renderer, "background", "red", NULL );

      if(flags & LIST_FLAG_ELLIPSIZE)
        g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);

      column = gtk_tree_view_column_new_with_attributes(name, renderer, 
        "text", key, 
         (flags & LIST_FLAG_CAN_HIGHLIGHT)?"background-set":NULL, hlkey,
        NULL);

      gtk_tree_view_column_set_expand(column, 
                      flags & (LIST_FLAG_EXPAND | LIST_FLAG_ELLIPSIZE));
    }
    
    gtk_tree_view_column_set_sort_column_id(column, key);
    gtk_tree_view_insert_column(GTK_TREE_VIEW(priv->view), column, -1);
    
    name = va_arg(ap, char*);
  }

  va_end(ap);
}

static GtkWidget *list_button_get(GtkWidget *list, list_button_t id) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  return priv->button.widget[id];
}

void list_button_connect(GtkWidget *list, list_button_t id, 
                         GCallback cb, gpointer data) {
  GtkWidget *but = list_button_get(list, id);
  gtk_signal_connect(GTK_OBJECT(but), "clicked", GTK_SIGNAL_FUNC(cb), data);
}

/* put a custom widget into one of the button slots */
void list_set_custom_user_button(GtkWidget *list, list_button_t id, 
                                 GtkWidget *widget) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);
  g_assert((id >= 3) && (id < 6));

  /* make space for user buttons */
  gtk_table_resize(GTK_TABLE(priv->table), 2, 3);
  
  if(!(priv->button.flags & LIST_BTN_WIDE))
    gtk_table_attach_defaults(GTK_TABLE(priv->table), widget,
              id-LIST_BUTTON_USER0, id-LIST_BUTTON_USER0+1, 1, 2);
  else
    gtk_table_attach_defaults(GTK_TABLE(priv->table), widget,
              3+id-LIST_BUTTON_USER0, 3+id-LIST_BUTTON_USER0+1, 0, 1);

  priv->button.widget[id] = widget;
}

GtkTreeSelection *list_get_selection(GtkWidget *list) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  GtkTreeSelection *sel = 
    gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));

  return sel;
}

/* returns true if something is selected. on in mode multiple returns */
/* true if exactly one item is selected */
gboolean list_get_selected(GtkWidget *list, GtkTreeModel **model,
                           GtkTreeIter *iter) {
  gboolean retval = FALSE;
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

#if 1  
  // this copes with multiple selections ...
  GtkTreeSelection *sel =
    gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));

  GList *slist = gtk_tree_selection_get_selected_rows(sel, model);
  printf("%d are selected\n", g_list_length(slist));
  
  if(g_list_length(slist) == 1) 
    retval = gtk_tree_model_get_iter(*model, iter, slist->data);

  g_list_foreach(slist, (GFunc)gtk_tree_path_free, NULL);
  g_list_free(slist);

  return retval;
#else
  // ... this doesn't
  return gtk_tree_selection_get_selected(sel, model, iter);
#endif
}

void list_button_enable(GtkWidget *list, list_button_t id, gboolean enable) {
  GtkWidget *but = list_button_get(list, id);
  if(but) gtk_widget_set_sensitive(but, enable);
}

void list_set_store(GtkWidget *list, GtkListStore *store) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  gtk_tree_view_set_model(GTK_TREE_VIEW(priv->view), GTK_TREE_MODEL(store));
}

void list_set_selection_function(GtkWidget *list, GtkTreeSelectionFunc func,
                                 gpointer data) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  priv->sel.func = func;
  priv->sel.data = data;
}

/* default selection function enables edit and remove if a row is being */
/* selected */
static gboolean
list_selection_function(GtkTreeSelection *selection, GtkTreeModel *model,
                        GtkTreePath *path, gboolean path_currently_selected,
                        gpointer list) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  GtkTreeIter iter;

  if(gtk_tree_model_get_iter(model, &iter, path)) {
    g_assert(gtk_tree_path_get_depth(path) == 1);

    /* this is now handled by the "changed" event handler */
    //    list_button_enable(GTK_WIDGET(list), LIST_BUTTON_REMOVE, TRUE);
    //    list_button_enable(GTK_WIDGET(list), LIST_BUTTON_EDIT, TRUE);
  }

  if(priv->sel.func)
    return priv->sel.func(selection, model, path, path_currently_selected, 
                          priv->sel.data);

  return TRUE; /* allow selection state to change */
}

static void on_row_activated(GtkTreeView *treeview,
                             GtkTreePath        *path,
                             GtkTreeViewColumn  *col,
                             gpointer            userdata) {
  GtkTreeIter   iter;
  GtkTreeModel *model = gtk_tree_view_get_model(treeview);

  printf("row activated\n");

  if(gtk_tree_model_get_iter(model, &iter, path)) {
    list_priv_t *priv = g_object_get_data(G_OBJECT(userdata), "priv");
    g_assert(priv);

    GtkWidget *toplevel = gtk_widget_get_toplevel(GTK_WIDGET(treeview));
    g_assert(GTK_IS_DIALOG(toplevel));

    /* emit a "response accept" signal so we might close the */
    /* dialog */
    gtk_dialog_response(GTK_DIALOG(toplevel), GTK_RESPONSE_ACCEPT);
  }
}

void list_set_static_buttons(GtkWidget *list, int flags,
                             GCallback cb_new, GCallback cb_edit, 
                             GCallback cb_remove, gpointer data) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  priv->button.data = data;
  priv->button.flags = flags;

  /* add the three default buttons, but keep the disabled for now */
  if(cb_new) {
    priv->button.widget[0] = 
      button_new_with_label(_((flags&LIST_BTN_NEW)?"New":"Add"));
    gtk_table_attach_defaults(GTK_TABLE(priv->table), 
                              priv->button.widget[0], 0, 1, 0, 1);
    gtk_signal_connect(GTK_OBJECT(priv->button.widget[0]), "clicked", 
                       GTK_SIGNAL_FUNC(cb_new), data);
    gtk_widget_set_sensitive(priv->button.widget[0], TRUE);
  }

  if(cb_edit) {
#ifdef FREMANTLE_USE_POPUP
    priv->button.widget[1] = cmenu_append(list, _("Edit"), 
                          GTK_SIGNAL_FUNC(cb_edit), data);
#else
    priv->button.widget[1] = button_new_with_label(_("Edit"));
    gtk_table_attach_defaults(GTK_TABLE(priv->table), 
                              priv->button.widget[1], 1, 2, 0, 1);
    gtk_signal_connect(GTK_OBJECT(priv->button.widget[1]), "clicked", 
                       GTK_SIGNAL_FUNC(cb_edit), data);
#endif
    gtk_widget_set_sensitive(priv->button.widget[1], FALSE);
  }

  if(cb_remove) {
#ifdef FREMANTLE_USE_POPUP
    priv->button.widget[2] = cmenu_append(list, _("Remove"), 
                          GTK_SIGNAL_FUNC(cb_remove), data);
#else
    priv->button.widget[2] = button_new_with_label(_("Remove"));
    gtk_table_attach_defaults(GTK_TABLE(priv->table), 
                              priv->button.widget[2], 2, 3, 0, 1);
    gtk_signal_connect(GTK_OBJECT(priv->button.widget[2]), "clicked", 
                       GTK_SIGNAL_FUNC(cb_remove), data);
#endif
    gtk_widget_set_sensitive(priv->button.widget[2], FALSE);
  }
}

GtkTreeModel *list_get_model(GtkWidget *list) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  return gtk_tree_view_get_model(GTK_TREE_VIEW(priv->view));
}

void list_pre_inplace_edit_tweak (GtkTreeModel *model) {
  // Remove any current sort ordering, leaving items where they are.
  gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(model),
                                 GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID,
                                 GTK_SORT_ASCENDING);
}


/* Refocus a GtkTreeView an item specified by iter, unselecting the current
   selection and optionally highlighting the new one. Typically called after
   making an edit to an item with a covering sub-dialog. */

void list_focus_on(GtkWidget *list, GtkTreeIter *iter, gboolean highlight) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);
  GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(priv->view));

  // Handle de/reselection
  GtkTreeSelection *sel = 
    gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));
  gtk_tree_selection_unselect_all(sel);

  // Scroll to it, since it might now be out of view.
  GtkTreePath *path = gtk_tree_model_get_path(model, iter);
  gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(priv->view), path, 
                               NULL, FALSE, 0, 0);
  gtk_tree_path_free(path);
  
  // reselect
  if (highlight)
    gtk_tree_selection_select_iter(sel, iter);
}

static gint on_list_destroy(GtkWidget *list, gpointer data) {
  list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
  g_assert(priv);

  g_free(priv);
  
  return FALSE;
}

static void changed(GtkTreeSelection *treeselection, gpointer user_data) {
  GtkWidget *list = (GtkWidget*)user_data;

  GtkTreeModel *model;
  GtkTreeIter iter;
  gboolean selected = list_get_selected(list, &model, &iter);

  list_button_enable(GTK_WIDGET(list), LIST_BUTTON_REMOVE, selected);
  list_button_enable(GTK_WIDGET(list), LIST_BUTTON_EDIT, selected);
}

/* a generic list widget with "add", "edit" and "remove" buttons as used */
/* for all kinds of lists in osm2go */
#ifdef USE_HILDON
GtkWidget *list_new(gboolean show_headers)
#else
GtkWidget *list_new(void)
#endif
{           
  list_priv_t *priv = g_new0(list_priv_t, 1);

  GtkWidget *vbox = gtk_vbox_new(FALSE,3);
  g_object_set_data(G_OBJECT(vbox), "priv", priv);
  g_signal_connect(G_OBJECT(vbox), "destroy",
                   G_CALLBACK(on_list_destroy), priv);

#ifndef FREMANTLE_PANNABLE_AREA
  priv->view = gtk_tree_view_new();
#else
  priv->view = hildon_gtk_tree_view_new(HILDON_UI_MODE_EDIT);
#endif

#ifdef USE_HILDON
  if(show_headers) {
    /* hildon hides these by default */
    gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(priv->view), TRUE); 
  }
#endif
 
  GtkTreeSelection *sel = 
    gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));

  gtk_tree_selection_set_select_function(sel, 
         list_selection_function, vbox, NULL);

  g_signal_connect(G_OBJECT(sel), "changed", G_CALLBACK(changed), vbox);

#ifndef FREMANTLE_PANNABLE_AREA
  /* put view 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), priv->view);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
#else
  /* put view into a pannable area */
  GtkWidget *pannable_area = hildon_pannable_area_new();
  gtk_container_add(GTK_CONTAINER(pannable_area), priv->view);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), pannable_area);

#ifdef FREMANTLE_USE_POPUP
  cmenu_init(vbox);
#endif
#endif

  /* make list react on clicks (double clicks on pre-fremantle) */
  g_signal_connect_after(GTK_OBJECT(priv->view), "row-activated", 
                         (GCallback)on_row_activated, vbox);

  /* add button box */
  priv->table = gtk_table_new(1, 3, TRUE);

  gtk_box_pack_start(GTK_BOX(vbox), priv->table, FALSE, FALSE, 0);

  return vbox;
}

1	/*
2	* Copyright (C) 2008-2009 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	/*
21	* list.c - generic implementation of a list style widget:
22	*
23	* +---------+-----------+
24	* \| Key \| Key \|
25	* +---------+-----------+
26	* \| Test1 Test2 ^\|
27	* \| Test3 Test4 #\|
28	* \| \|\|
29	* \| v\|
30	* +---------------------+
31	* ( Add )( Edit )(Remove)
32	*/
33
34	#include "appdata.h"
35
36	#include <stdarg.h>
37
38	typedef struct {
39	GtkWidget *view;
40	GtkMenu *menu;
41
42	struct {
43	gboolean(func)(GtkTreeSelection , GtkTreeModel *,
44	GtkTreePath *, gboolean,
45	gpointer);
46	gpointer data;
47	} sel;
48
49	GtkWidget *table;
50
51	struct {
52	gpointer data;
53	GtkWidget *widget[6];
54	int flags;
55	} button;
56
57	} list_priv_t;
58
59	#ifdef FREMANTLE_USE_POPUP
60
61	static void cmenu_init(GtkWidget *list) {
62	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
63	g_assert(priv);
64
65	/* Create needed handles. */
66	priv->menu = GTK_MENU(gtk_menu_new());
67
68	gtk_widget_tap_and_hold_setup(priv->view, GTK_WIDGET(priv->menu), NULL, 0);
69	}
70
71	static GtkWidget cmenu_append(GtkWidget list, char *label,
72	GCallback cb, gpointer data) {
73	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
74	g_assert(priv);
75
76	GtkWidget *menu_item;
77
78	/* Setup the map context menu. */
79	gtk_menu_append(priv->menu, menu_item
80	= gtk_menu_item_new_with_label(label));
81
82	hildon_gtk_widget_set_theme_size(menu_item,
83	(HILDON_SIZE_FINGER_HEIGHT \| HILDON_SIZE_AUTO_WIDTH));
84
85	gtk_signal_connect(GTK_OBJECT(menu_item), "activate",
86	GTK_SIGNAL_FUNC(cb), data);
87
88	gtk_widget_show_all(GTK_WIDGET(priv->menu));
89
90	return menu_item;
91	}
92
93	#endif
94
95	GtkWidget list_get_view(GtkWidget list) {
96	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
97	g_assert(priv);
98	return priv->view;
99	}
100
101	/* a list supports up to three user defined buttons besides */
102	/* add, edit and remove */
103	void list_set_user_buttons(GtkWidget *list, ...) {
104	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
105	g_assert(priv);
106
107	va_list ap;
108
109	/* make space for user buttons */
110	if(!(priv->button.flags & LIST_BTN_WIDE))
111	gtk_table_resize(GTK_TABLE(priv->table), 2, 3);
112	else
113	gtk_table_resize(GTK_TABLE(priv->table), 1, 5);
114
115	va_start(ap, list);
116	list_button_t id = va_arg(ap, list_button_t);
117	while(id) {
118	char label = va_arg(ap, char);
119	GCallback cb = va_arg(ap, GCallback);
120
121	priv->button.widget[id] = button_new_with_label(label);
122	if(!(priv->button.flags & LIST_BTN_WIDE))
123	gtk_table_attach_defaults(GTK_TABLE(priv->table), priv->button.widget[id],
124	id-LIST_BUTTON_USER0, id-LIST_BUTTON_USER0+1, 1, 2);
125	else
126	gtk_table_attach_defaults(GTK_TABLE(priv->table), priv->button.widget[id],
127	3+id-LIST_BUTTON_USER0, 3+id-LIST_BUTTON_USER0+1, 0, 1);
128
129	gtk_signal_connect(GTK_OBJECT(priv->button.widget[id]), "clicked",
130	GTK_SIGNAL_FUNC(cb), priv->button.data);
131
132	id = va_arg(ap, list_button_t);
133	}
134
135	va_end(ap);
136	}
137
138	void list_set_columns(GtkWidget *list, ...) {
139	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
140	g_assert(priv);
141	va_list ap;
142
143	va_start(ap, list);
144	char name = va_arg(ap, char);
145	while(name) {
146	int hlkey = -1, key = va_arg(ap, int);
147	int flags = va_arg(ap, int);
148
149	if(flags & LIST_FLAG_CAN_HIGHLIGHT)
150	hlkey = va_arg(ap, int);
151
152	GtkTreeViewColumn *column = NULL;
153
154	if(flags & LIST_FLAG_TOGGLE) {
155	GCallback cb = va_arg(ap, GCallback);
156	gpointer data = va_arg(ap, gpointer);
157
158	GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new();
159	column = gtk_tree_view_column_new_with_attributes(
160	name, renderer, "active", key, NULL);
161	g_signal_connect(renderer, "toggled", cb, data);
162
163	} else if(flags & LIST_FLAG_STOCK_ICON) {
164	GtkCellRenderer *pixbuf_renderer = gtk_cell_renderer_pixbuf_new();
165	column = gtk_tree_view_column_new_with_attributes(name,
166	pixbuf_renderer, "stock_id", key, NULL);
167	} else {
168	GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
169
170	if(flags & LIST_FLAG_CAN_HIGHLIGHT)
171	g_object_set(renderer, "background", "red", NULL );
172
173	if(flags & LIST_FLAG_ELLIPSIZE)
174	g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
175
176	column = gtk_tree_view_column_new_with_attributes(name, renderer,
177	"text", key,
178	(flags & LIST_FLAG_CAN_HIGHLIGHT)?"background-set":NULL, hlkey,
179	NULL);
180
181	gtk_tree_view_column_set_expand(column,
182	flags & (LIST_FLAG_EXPAND \| LIST_FLAG_ELLIPSIZE));
183	}
184
185	gtk_tree_view_column_set_sort_column_id(column, key);
186	gtk_tree_view_insert_column(GTK_TREE_VIEW(priv->view), column, -1);
187
188	name = va_arg(ap, char*);
189	}
190
191	va_end(ap);
192	}
193
194	static GtkWidget list_button_get(GtkWidget list, list_button_t id) {
195	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
196	g_assert(priv);
197
198	return priv->button.widget[id];
199	}
200
201	void list_button_connect(GtkWidget *list, list_button_t id,
202	GCallback cb, gpointer data) {
203	GtkWidget *but = list_button_get(list, id);
204	gtk_signal_connect(GTK_OBJECT(but), "clicked", GTK_SIGNAL_FUNC(cb), data);
205	}
206
207	/* put a custom widget into one of the button slots */
208	void list_set_custom_user_button(GtkWidget *list, list_button_t id,
209	GtkWidget *widget) {
210	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
211	g_assert(priv);
212	g_assert((id >= 3) && (id < 6));
213
214	/* make space for user buttons */
215	gtk_table_resize(GTK_TABLE(priv->table), 2, 3);
216
217	if(!(priv->button.flags & LIST_BTN_WIDE))
218	gtk_table_attach_defaults(GTK_TABLE(priv->table), widget,
219	id-LIST_BUTTON_USER0, id-LIST_BUTTON_USER0+1, 1, 2);
220	else
221	gtk_table_attach_defaults(GTK_TABLE(priv->table), widget,
222	3+id-LIST_BUTTON_USER0, 3+id-LIST_BUTTON_USER0+1, 0, 1);
223
224	priv->button.widget[id] = widget;
225	}
226
227	GtkTreeSelection list_get_selection(GtkWidget list) {
228	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
229	g_assert(priv);
230
231	GtkTreeSelection *sel =
232	gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));
233
234	return sel;
235	}
236
237	/* returns true if something is selected. on in mode multiple returns */
238	/* true if exactly one item is selected */
239	gboolean list_get_selected(GtkWidget list, GtkTreeModel *model,
240	GtkTreeIter *iter) {
241	gboolean retval = FALSE;
242	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
243	g_assert(priv);
244
245	#if 1
246	// this copes with multiple selections ...
247	GtkTreeSelection *sel =
248	gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));
249
250	GList *slist = gtk_tree_selection_get_selected_rows(sel, model);
251	printf("%d are selected\n", g_list_length(slist));
252
253	if(g_list_length(slist) == 1)
254	retval = gtk_tree_model_get_iter(*model, iter, slist->data);
255
256	g_list_foreach(slist, (GFunc)gtk_tree_path_free, NULL);
257	g_list_free(slist);
258
259	return retval;
260	#else
261	// ... this doesn't
262	return gtk_tree_selection_get_selected(sel, model, iter);
263	#endif
264	}
265
266	void list_button_enable(GtkWidget *list, list_button_t id, gboolean enable) {
267	GtkWidget *but = list_button_get(list, id);
268	if(but) gtk_widget_set_sensitive(but, enable);
269	}
270
271	void list_set_store(GtkWidget list, GtkListStore store) {
272	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
273	g_assert(priv);
274
275	gtk_tree_view_set_model(GTK_TREE_VIEW(priv->view), GTK_TREE_MODEL(store));
276	}
277
278	void list_set_selection_function(GtkWidget *list, GtkTreeSelectionFunc func,
279	gpointer data) {
280	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
281	g_assert(priv);
282
283	priv->sel.func = func;
284	priv->sel.data = data;
285	}
286
287	/* default selection function enables edit and remove if a row is being */
288	/* selected */
289	static gboolean
290	list_selection_function(GtkTreeSelection selection, GtkTreeModel model,
291	GtkTreePath *path, gboolean path_currently_selected,
292	gpointer list) {
293	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
294	g_assert(priv);
295
296	GtkTreeIter iter;
297
298	if(gtk_tree_model_get_iter(model, &iter, path)) {
299	g_assert(gtk_tree_path_get_depth(path) == 1);
300
301	/* this is now handled by the "changed" event handler */
302	// list_button_enable(GTK_WIDGET(list), LIST_BUTTON_REMOVE, TRUE);
303	// list_button_enable(GTK_WIDGET(list), LIST_BUTTON_EDIT, TRUE);
304	}
305
306	if(priv->sel.func)
307	return priv->sel.func(selection, model, path, path_currently_selected,
308	priv->sel.data);
309
310	return TRUE; /* allow selection state to change */
311	}
312
313	static void on_row_activated(GtkTreeView *treeview,
314	GtkTreePath *path,
315	GtkTreeViewColumn *col,
316	gpointer userdata) {
317	GtkTreeIter iter;
318	GtkTreeModel *model = gtk_tree_view_get_model(treeview);
319
320	printf("row activated\n");
321
322	if(gtk_tree_model_get_iter(model, &iter, path)) {
323	list_priv_t *priv = g_object_get_data(G_OBJECT(userdata), "priv");
324	g_assert(priv);
325
326	GtkWidget *toplevel = gtk_widget_get_toplevel(GTK_WIDGET(treeview));
327	g_assert(GTK_IS_DIALOG(toplevel));
328
329	/* emit a "response accept" signal so we might close the */
330	/* dialog */
331	gtk_dialog_response(GTK_DIALOG(toplevel), GTK_RESPONSE_ACCEPT);
332	}
333	}
334
335	void list_set_static_buttons(GtkWidget *list, int flags,
336	GCallback cb_new, GCallback cb_edit,
337	GCallback cb_remove, gpointer data) {
338	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
339	g_assert(priv);
340
341	priv->button.data = data;
342	priv->button.flags = flags;
343
344	/* add the three default buttons, but keep the disabled for now */
345	if(cb_new) {
346	priv->button.widget[0] =
347	button_new_with_label(_((flags&LIST_BTN_NEW)?"New":"Add"));
348	gtk_table_attach_defaults(GTK_TABLE(priv->table),
349	priv->button.widget[0], 0, 1, 0, 1);
350	gtk_signal_connect(GTK_OBJECT(priv->button.widget[0]), "clicked",
351	GTK_SIGNAL_FUNC(cb_new), data);
352	gtk_widget_set_sensitive(priv->button.widget[0], TRUE);
353	}
354
355	if(cb_edit) {
356	#ifdef FREMANTLE_USE_POPUP
357	priv->button.widget[1] = cmenu_append(list, _("Edit"),
358	GTK_SIGNAL_FUNC(cb_edit), data);
359	#else
360	priv->button.widget[1] = button_new_with_label(_("Edit"));
361	gtk_table_attach_defaults(GTK_TABLE(priv->table),
362	priv->button.widget[1], 1, 2, 0, 1);
363	gtk_signal_connect(GTK_OBJECT(priv->button.widget[1]), "clicked",
364	GTK_SIGNAL_FUNC(cb_edit), data);
365	#endif
366	gtk_widget_set_sensitive(priv->button.widget[1], FALSE);
367	}
368
369	if(cb_remove) {
370	#ifdef FREMANTLE_USE_POPUP
371	priv->button.widget[2] = cmenu_append(list, _("Remove"),
372	GTK_SIGNAL_FUNC(cb_remove), data);
373	#else
374	priv->button.widget[2] = button_new_with_label(_("Remove"));
375	gtk_table_attach_defaults(GTK_TABLE(priv->table),
376	priv->button.widget[2], 2, 3, 0, 1);
377	gtk_signal_connect(GTK_OBJECT(priv->button.widget[2]), "clicked",
378	GTK_SIGNAL_FUNC(cb_remove), data);
379	#endif
380	gtk_widget_set_sensitive(priv->button.widget[2], FALSE);
381	}
382	}
383
384	GtkTreeModel list_get_model(GtkWidget list) {
385	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
386	g_assert(priv);
387
388	return gtk_tree_view_get_model(GTK_TREE_VIEW(priv->view));
389	}
390
391	void list_pre_inplace_edit_tweak (GtkTreeModel *model) {
392	// Remove any current sort ordering, leaving items where they are.
393	gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(model),
394	GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID,
395	GTK_SORT_ASCENDING);
396	}
397
398
399	/* Refocus a GtkTreeView an item specified by iter, unselecting the current
400	selection and optionally highlighting the new one. Typically called after
401	making an edit to an item with a covering sub-dialog. */
402
403	void list_focus_on(GtkWidget list, GtkTreeIter iter, gboolean highlight) {
404	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
405	g_assert(priv);
406	GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(priv->view));
407
408	// Handle de/reselection
409	GtkTreeSelection *sel =
410	gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));
411	gtk_tree_selection_unselect_all(sel);
412
413	// Scroll to it, since it might now be out of view.
414	GtkTreePath *path = gtk_tree_model_get_path(model, iter);
415	gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(priv->view), path,
416	NULL, FALSE, 0, 0);
417	gtk_tree_path_free(path);
418
419	// reselect
420	if (highlight)
421	gtk_tree_selection_select_iter(sel, iter);
422	}
423
424	static gint on_list_destroy(GtkWidget *list, gpointer data) {
425	list_priv_t *priv = g_object_get_data(G_OBJECT(list), "priv");
426	g_assert(priv);
427
428	g_free(priv);
429
430	return FALSE;
431	}
432
433	static void changed(GtkTreeSelection *treeselection, gpointer user_data) {
434	GtkWidget list = (GtkWidget)user_data;
435
436	GtkTreeModel *model;
437	GtkTreeIter iter;
438	gboolean selected = list_get_selected(list, &model, &iter);
439
440	list_button_enable(GTK_WIDGET(list), LIST_BUTTON_REMOVE, selected);
441	list_button_enable(GTK_WIDGET(list), LIST_BUTTON_EDIT, selected);
442	}
443
444	/* a generic list widget with "add", "edit" and "remove" buttons as used */
445	/* for all kinds of lists in osm2go */
446	#ifdef USE_HILDON
447	GtkWidget *list_new(gboolean show_headers)
448	#else
449	GtkWidget *list_new(void)
450	#endif
451	{
452	list_priv_t *priv = g_new0(list_priv_t, 1);
453
454	GtkWidget *vbox = gtk_vbox_new(FALSE,3);
455	g_object_set_data(G_OBJECT(vbox), "priv", priv);
456	g_signal_connect(G_OBJECT(vbox), "destroy",
457	G_CALLBACK(on_list_destroy), priv);
458
459	#ifndef FREMANTLE_PANNABLE_AREA
460	priv->view = gtk_tree_view_new();
461	#else
462	priv->view = hildon_gtk_tree_view_new(HILDON_UI_MODE_EDIT);
463	#endif
464
465	#ifdef USE_HILDON
466	if(show_headers) {
467	/* hildon hides these by default */
468	gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(priv->view), TRUE);
469	}
470	#endif
471
472	GtkTreeSelection *sel =
473	gtk_tree_view_get_selection(GTK_TREE_VIEW(priv->view));
474
475	gtk_tree_selection_set_select_function(sel,
476	list_selection_function, vbox, NULL);
477
478	g_signal_connect(G_OBJECT(sel), "changed", G_CALLBACK(changed), vbox);
479
480	#ifndef FREMANTLE_PANNABLE_AREA
481	/* put view into a scrolled window */
482	GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL);
483	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
484	GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
485	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window),
486	GTK_SHADOW_ETCHED_IN);
487	gtk_container_add(GTK_CONTAINER(scrolled_window), priv->view);
488	gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
489	#else
490	/* put view into a pannable area */
491	GtkWidget *pannable_area = hildon_pannable_area_new();
492	gtk_container_add(GTK_CONTAINER(pannable_area), priv->view);
493	gtk_box_pack_start_defaults(GTK_BOX(vbox), pannable_area);
494
495	#ifdef FREMANTLE_USE_POPUP
496	cmenu_init(vbox);
497	#endif
498	#endif
499
500	/* make list react on clicks (double clicks on pre-fremantle) */
501	g_signal_connect_after(GTK_OBJECT(priv->view), "row-activated",
502	(GCallback)on_row_activated, vbox);
503
504	/* add button box */
505	priv->table = gtk_table_new(1, 3, TRUE);
506
507	gtk_box_pack_start(GTK_BOX(vbox), priv->table, FALSE, FALSE, 0);
508
509	return vbox;
510	}
511