/******************************************************************************
 * $Id$
 *
 * Copyright (c) Transmission authors and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

#include <string.h>

#include <gtk/gtk.h>
#include <glib/gi18n.h>

#include <libtransmission/transmission.h>
#include <libtransmission/utils.h> /* tr_formatter_speed_KBps () */

#include "actions.h"
#include "conf.h"
#include "filter.h"
#include "hig.h"
#include "torrent-cell-renderer.h"
#include "tr-prefs.h"
#include "tr-window.h"
#include "util.h"

typedef struct
{
    GtkWidget          * speedlimit_on_item[2];
    GtkWidget          * speedlimit_off_item[2];
    GtkWidget          * ratio_on_item;
    GtkWidget          * ratio_off_item;
    GtkWidget          * scroll;
    GtkWidget          * view;
    GtkWidget          * toolbar;
    GtkWidget          * filter;
    GtkWidget          * status;
    GtkWidget          * status_menu;
    GtkLabel           * ul_lb;
    GtkLabel           * dl_lb;
    GtkLabel           * stats_lb;
    GtkLabel           * gutter_lb;
    GtkWidget          * alt_speed_image;
    GtkWidget          * alt_speed_button;
    GtkWidget          * options_menu;
    GtkTreeSelection   * selection;
    GtkCellRenderer    * renderer;
    GtkTreeViewColumn  * column;
    GtkTreeModel       * filter_model;
    TrCore             * core;
    gulong               pref_handler_id;
}
PrivateData;

static GQuark
get_private_data_key (void)
{
  static GQuark q = 0;

  if (!q)
    q = g_quark_from_static_string ("private-data");

  return q;
}

static PrivateData*
get_private_data (GtkWindow * w)
{
  return g_object_get_qdata (G_OBJECT (w), get_private_data_key ());
}

/***
****
***/

static void
on_popup_menu (GtkWidget * self UNUSED,
               GdkEventButton * event)
{
  GtkWidget * menu = gtr_action_get_widget ("/main-window-popup");

  gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
                  (event ? event->button : 0),
                  (event ? event->time : 0));
}

static void
view_row_activated (GtkTreeView       * tree_view UNUSED,
                    GtkTreePath       * path      UNUSED,
                    GtkTreeViewColumn * column    UNUSED,
                    gpointer            user_data UNUSED)
{
  gtr_action_activate ("show-torrent-properties");
}

static gboolean
tree_view_search_equal_func (GtkTreeModel * model,
                             gint           column UNUSED,
                             const gchar  * key,
                             GtkTreeIter  * iter,
                             gpointer       search_data UNUSED)
{
    gboolean match;
    char * lower;
    const char * name = NULL;

    lower = g_strstrip (g_utf8_strdown (key, -1));
    gtk_tree_model_get (model, iter, MC_NAME_COLLATED, &name, -1);
    match = strstr (name, lower) != NULL;
    g_free (lower);

    return !match;
}

static GtkWidget*
makeview (PrivateData * p)
{
  GtkWidget * view;
  GtkTreeViewColumn * col;
  GtkTreeSelection * sel;
  GtkCellRenderer * r;
  GtkTreeView * tree_view;

  view = gtk_tree_view_new ();
  tree_view = GTK_TREE_VIEW (view);
  gtk_tree_view_set_search_column (tree_view, MC_NAME_COLLATED);
  gtk_tree_view_set_search_equal_func (tree_view,
                                       tree_view_search_equal_func,
                                       NULL, NULL);
  gtk_tree_view_set_headers_visible (tree_view, FALSE);
  gtk_tree_view_set_fixed_height_mode (tree_view, TRUE);

  p->selection = gtk_tree_view_get_selection (tree_view);

  p->column = col = GTK_TREE_VIEW_COLUMN (g_object_new (GTK_TYPE_TREE_VIEW_COLUMN,
    "title", _("Torrent"),
    "resizable", TRUE,
    "sizing", GTK_TREE_VIEW_COLUMN_FIXED,
    NULL));

  p->renderer = r = torrent_cell_renderer_new ();
  gtk_tree_view_column_pack_start (col, r, FALSE);
  gtk_tree_view_column_add_attribute (col, r, "torrent", MC_TORRENT);
  gtk_tree_view_column_add_attribute (col, r, "piece-upload-speed", MC_SPEED_UP);
  gtk_tree_view_column_add_attribute (col, r, "piece-download-speed", MC_SPEED_DOWN);

  gtk_tree_view_append_column (tree_view, col);
  g_object_set (r, "xpad", GUI_PAD_SMALL, "ypad", GUI_PAD_SMALL, NULL);

  gtk_tree_view_set_rules_hint (tree_view, TRUE);
  sel = gtk_tree_view_get_selection (tree_view);
  gtk_tree_selection_set_mode (GTK_TREE_SELECTION (sel),
                               GTK_SELECTION_MULTIPLE);

  g_signal_connect (view, "popup-menu",
                    G_CALLBACK (on_popup_menu), NULL);
  g_signal_connect (view, "button-press-event",
                    G_CALLBACK (on_tree_view_button_pressed),
                    (void *) on_popup_menu);
  g_signal_connect (view, "button-release-event",
                    G_CALLBACK (on_tree_view_button_released), NULL);
  g_signal_connect (view, "row-activated",
                    G_CALLBACK (view_row_activated), NULL);


  gtk_tree_view_set_model (tree_view, p->filter_model);
  g_object_unref (p->filter_model);

  return view;
}

static void syncAltSpeedButton (PrivateData * p);

static void
prefsChanged (TrCore           * core UNUSED,
              const tr_quark     key,
              gpointer           wind)
{
  gboolean isEnabled;
  PrivateData * p = get_private_data (GTK_WINDOW (wind));

  switch (key)
    {
      case TR_KEY_compact_view:
        g_object_set (p->renderer, "compact", gtr_pref_flag_get (key), NULL);
        /* since the cell size has changed, we need gtktreeview to revalidate
         * its fixed-height mode values. Unfortunately there's not an API call
         * for that, but it *does* revalidate when it thinks the style's been tweaked */
        g_signal_emit_by_name (p->view, "style-updated", NULL, NULL);
        break;

      case TR_KEY_show_statusbar:
        isEnabled = gtr_pref_flag_get (key);
        g_object_set (p->status, "visible", isEnabled, NULL);
        break;

      case TR_KEY_show_filterbar:
        isEnabled = gtr_pref_flag_get (key);
        g_object_set (p->filter, "visible", isEnabled, NULL);
        break;

      case TR_KEY_show_toolbar:
        isEnabled = gtr_pref_flag_get (key);
        g_object_set (p->toolbar, "visible", isEnabled, NULL);
        break;

      case TR_KEY_statusbar_stats:
        gtr_window_refresh (wind);
        break;

      case TR_KEY_alt_speed_enabled:
      case TR_KEY_alt_speed_up:
      case TR_KEY_alt_speed_down:
        syncAltSpeedButton (p);
        break;

      default:
        break;
    }
}

static void
privateFree (gpointer vprivate)
{
  PrivateData * p = vprivate;
  g_signal_handler_disconnect (p->core, p->pref_handler_id);
  g_free (p);
}

static void
onYinYangReleased (GtkWidget * w UNUSED, gpointer vprivate)
{
  PrivateData * p = vprivate;

  gtk_menu_popup (GTK_MENU (p->status_menu),
                  NULL, NULL, NULL, NULL, 0,
                  gtk_get_current_event_time ());
}

#define STATS_MODE "stats-mode"

static struct
{
    const char *  val, *i18n;
} stats_modes[] = {
    { "total-ratio",      N_("Total Ratio")                },
    { "session-ratio",    N_("Session Ratio")              },
    { "total-transfer",   N_("Total Transfer")             },
    { "session-transfer", N_("Session Transfer")           }
};

static void
status_menu_toggled_cb (GtkCheckMenuItem * menu_item,
                        gpointer           vprivate)
{
  if (gtk_check_menu_item_get_active (menu_item))
    {
      PrivateData * p = vprivate;
      const char *  val = g_object_get_data (G_OBJECT (menu_item), STATS_MODE);
      gtr_core_set_pref (p->core, TR_KEY_statusbar_stats, val);
    }
}

static void
syncAltSpeedButton (PrivateData * p)
{
  char u[32];
  char d[32];
  char * str;
  const char * fmt;
  const gboolean b = gtr_pref_flag_get (TR_KEY_alt_speed_enabled);
  const char * stock = b ? "alt-speed-on" : "alt-speed-off";
  GtkWidget * w = p->alt_speed_button;

  tr_formatter_speed_KBps (u, gtr_pref_int_get (TR_KEY_alt_speed_up), sizeof (u));
  tr_formatter_speed_KBps (d, gtr_pref_int_get (TR_KEY_alt_speed_down), sizeof (d));
  fmt = b ? _("Click to disable Alternative Speed Limits\n (%1$s down, %2$s up)")
          : _("Click to enable Alternative Speed Limits\n (%1$s down, %2$s up)");
  str = g_strdup_printf (fmt, d, u);

  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (w), b);
  gtk_image_set_from_stock (GTK_IMAGE (p->alt_speed_image), stock, -1);
  gtk_button_set_alignment (GTK_BUTTON (w), 0.5, 0.5);
  gtk_widget_set_tooltip_text (w, str);

  g_free (str);
}

static void
alt_speed_toggled_cb (GtkToggleButton * button, gpointer vprivate)
{
  PrivateData * p = vprivate;
  const gboolean b = gtk_toggle_button_get_active (button);
  gtr_core_set_pref_bool (p->core, TR_KEY_alt_speed_enabled,  b);
}

/***
****  FILTER
***/

static void
findMaxAnnounceTime (GtkTreeModel * model,
                     GtkTreePath  * path UNUSED,
                     GtkTreeIter  * iter,
                     gpointer       gmaxTime)
{
  tr_torrent * tor;
  const tr_stat * torStat;
  time_t * maxTime = gmaxTime;

  gtk_tree_model_get (model, iter, MC_TORRENT, &tor, -1);
  torStat = tr_torrentStatCached (tor);
  *maxTime = MAX (*maxTime, torStat->manualAnnounceTime);
}

static gboolean
onAskTrackerQueryTooltip (GtkWidget   * widget UNUSED,
                          gint          x UNUSED,
                          gint          y UNUSED,
                          gboolean      keyboard_tip UNUSED,
                          GtkTooltip  * tooltip,
                          gpointer      gdata)
{
  gboolean handled;
  time_t maxTime = 0;
  PrivateData * p = gdata;
  const time_t now = time (NULL);

  gtk_tree_selection_selected_foreach (p->selection,
                                       findMaxAnnounceTime,
                                       &maxTime);
  if (maxTime <= now)
    {
      handled = FALSE;
    }
  else
    {
      char buf[512];
      char timebuf[64];
      const int seconds = maxTime - now;

      tr_strltime (timebuf, seconds, sizeof (timebuf));
      g_snprintf (buf, sizeof (buf),
                  _("Tracker will allow requests in %s"), timebuf);
      gtk_tooltip_set_text (tooltip, buf);
      handled = TRUE;
    }

  return handled;
}

static gboolean
onAltSpeedToggledIdle (gpointer vp)
{
  PrivateData * p = vp;
  gboolean b = tr_sessionUsesAltSpeed (gtr_core_session (p->core));
  gtr_core_set_pref_bool (p->core, TR_KEY_alt_speed_enabled, b);

  return FALSE;
}

static void
onAltSpeedToggled (tr_session * s UNUSED, bool isEnabled UNUSED, bool byUser UNUSED, void * p)
{
  gdk_threads_add_idle (onAltSpeedToggledIdle, p);
}

/***
****  Speed limit menu
***/

#define DIRECTION_KEY "direction-key"
#define ENABLED_KEY "enabled-key"
#define SPEED_KEY "speed-key"

static void
onSpeedToggled (GtkCheckMenuItem * check, gpointer vp)
{
  PrivateData * p = vp;
  GObject * o = G_OBJECT (check);
  gboolean isEnabled = g_object_get_data (o, ENABLED_KEY) != 0;
  tr_direction dir = GPOINTER_TO_INT (g_object_get_data (o, DIRECTION_KEY));
  const tr_quark key = dir == TR_UP ? TR_KEY_speed_limit_up_enabled
                                    : TR_KEY_speed_limit_down_enabled;

  if (gtk_check_menu_item_get_active (check))
    gtr_core_set_pref_bool (p->core, key, isEnabled);
}

static void
onSpeedSet (GtkCheckMenuItem * check, gpointer vp)
{
  tr_quark key;
  PrivateData * p = vp;
  GObject * o = G_OBJECT (check);
  const int KBps = GPOINTER_TO_INT (g_object_get_data (o, SPEED_KEY));
  tr_direction dir = GPOINTER_TO_INT (g_object_get_data (o, DIRECTION_KEY));

  key = dir==TR_UP ? TR_KEY_speed_limit_up : TR_KEY_speed_limit_down;
  gtr_core_set_pref_int (p->core, key, KBps);

  key = dir==TR_UP ? TR_KEY_speed_limit_up_enabled : TR_KEY_speed_limit_down_enabled;
  gtr_core_set_pref_bool (p->core, key, TRUE);
}

static GtkWidget*
createSpeedMenu (PrivateData * p, tr_direction dir)
{
  int i, n;
  GObject * o;
  GtkWidget * w;
  GtkWidget * m;
  GtkMenuShell * menu_shell;
  const int speeds_KBps[] = { 5, 10, 20, 30, 40, 50, 75, 100, 150, 200, 250, 500, 750 };

  m = gtk_menu_new ();
  menu_shell = GTK_MENU_SHELL (m);

  w = gtk_radio_menu_item_new_with_label (NULL, _("Unlimited"));
  o = G_OBJECT (w);
  p->speedlimit_off_item[dir] = w;
  g_object_set_data (o, DIRECTION_KEY, GINT_TO_POINTER (dir));
  g_object_set_data (o, ENABLED_KEY, GINT_TO_POINTER (FALSE));
  g_signal_connect (w, "toggled", G_CALLBACK (onSpeedToggled), p);
  gtk_menu_shell_append (menu_shell, w);

  w = gtk_radio_menu_item_new_with_label_from_widget (GTK_RADIO_MENU_ITEM (w), "");
  o = G_OBJECT (w);
  p->speedlimit_on_item[dir] = w;
  g_object_set_data (o, DIRECTION_KEY, GINT_TO_POINTER (dir));
  g_object_set_data (o, ENABLED_KEY, GINT_TO_POINTER (TRUE));
  g_signal_connect (w, "toggled", G_CALLBACK (onSpeedToggled), p);
  gtk_menu_shell_append (menu_shell, w);

  w = gtk_separator_menu_item_new ();
  gtk_menu_shell_append (menu_shell, w);

  for (i=0, n=G_N_ELEMENTS (speeds_KBps); i<n; ++i)
    {
      char buf[128];
      tr_formatter_speed_KBps (buf, speeds_KBps[i], sizeof (buf));
      w = gtk_menu_item_new_with_label (buf);
      o = G_OBJECT (w);
      g_object_set_data (o, DIRECTION_KEY, GINT_TO_POINTER (dir));
      g_object_set_data (o, SPEED_KEY, GINT_TO_POINTER (speeds_KBps[i]));
      g_signal_connect (w, "activate", G_CALLBACK (onSpeedSet), p);
      gtk_menu_shell_append (menu_shell, w);
    }

  return m;
}

/***
****  Speed limit menu
***/

#define RATIO_KEY "stock-ratio-index"

static const double stockRatios[] = { 0.25, 0.5, 0.75, 1, 1.5, 2, 3 };

static void
onRatioToggled (GtkCheckMenuItem * check, gpointer vp)
{
  PrivateData * p = vp;

  if (gtk_check_menu_item_get_active (check))
    {
      gboolean f = g_object_get_data (G_OBJECT (check), ENABLED_KEY) != 0;
      gtr_core_set_pref_bool (p->core, TR_KEY_ratio_limit_enabled, f);
    }
}
static void
onRatioSet (GtkCheckMenuItem * check, gpointer vp)
{
  PrivateData * p = vp;
  int i = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (check), RATIO_KEY));
  const double ratio = stockRatios[i];
  gtr_core_set_pref_double (p->core, TR_KEY_ratio_limit, ratio);
  gtr_core_set_pref_bool (p->core, TR_KEY_ratio_limit_enabled, TRUE);
}

static GtkWidget*
createRatioMenu (PrivateData * p)
{
  int i, n;
  GtkWidget *m, *w;
  GtkMenuShell * menu_shell;

  m = gtk_menu_new ();
  menu_shell = GTK_MENU_SHELL (m);

  w = gtk_radio_menu_item_new_with_label (NULL, _("Seed Forever"));
  p->ratio_off_item = w;
  g_object_set_data (G_OBJECT (w), ENABLED_KEY, GINT_TO_POINTER (FALSE));
  g_signal_connect (w, "toggled", G_CALLBACK (onRatioToggled), p);
  gtk_menu_shell_append (menu_shell, w);

  w = gtk_radio_menu_item_new_with_label_from_widget (GTK_RADIO_MENU_ITEM (w), "");
  p->ratio_on_item = w;
  g_object_set_data (G_OBJECT (w), ENABLED_KEY, GINT_TO_POINTER (TRUE));
  g_signal_connect (w, "toggled", G_CALLBACK (onRatioToggled), p);
  gtk_menu_shell_append (menu_shell, w);

  w = gtk_separator_menu_item_new ();
  gtk_menu_shell_append (menu_shell, w);

  for (i=0, n=G_N_ELEMENTS (stockRatios); i<n; ++i)
    {
      char buf[128];
      tr_strlratio (buf, stockRatios[i], sizeof (buf));
      w = gtk_menu_item_new_with_label (buf);
      g_object_set_data (G_OBJECT (w), RATIO_KEY, GINT_TO_POINTER (i));
      g_signal_connect (w, "activate", G_CALLBACK (onRatioSet), p);
      gtk_menu_shell_append (menu_shell, w);
    }

    return m;
}

/***
****  Option menu
***/

static GtkWidget*
createOptionsMenu (PrivateData * p)
{
  GtkWidget * m;
  GtkWidget * top = gtk_menu_new ();
  GtkMenuShell * menu_shell = GTK_MENU_SHELL (top);

  m = gtk_menu_item_new_with_label (_("Limit Download Speed"));
  gtk_menu_item_set_submenu (GTK_MENU_ITEM (m), createSpeedMenu (p, TR_DOWN));
  gtk_menu_shell_append (menu_shell, m);

  m = gtk_menu_item_new_with_label (_("Limit Upload Speed"));
  gtk_menu_item_set_submenu (GTK_MENU_ITEM (m), createSpeedMenu (p, TR_UP));
  gtk_menu_shell_append (menu_shell, m);

  m = gtk_separator_menu_item_new ();
  gtk_menu_shell_append (menu_shell, m);

  m = gtk_menu_item_new_with_label (_("Stop Seeding at Ratio"));
  gtk_menu_item_set_submenu (GTK_MENU_ITEM (m), createRatioMenu (p));
  gtk_menu_shell_append (menu_shell, m);

  gtk_widget_show_all (top);
  return top;
}

static void
onOptionsClicked (GtkButton * button UNUSED, gpointer vp)
{
  char buf1[512];
  char buf2[512];
  gboolean b;
  GtkWidget * w;
  PrivateData * p = vp;

  w = p->speedlimit_on_item[TR_DOWN];
  tr_formatter_speed_KBps (buf1, gtr_pref_int_get (TR_KEY_speed_limit_down), sizeof (buf1));
  gtr_label_set_text (GTK_LABEL (gtk_bin_get_child (GTK_BIN (w))), buf1);

  b = gtr_pref_flag_get (TR_KEY_speed_limit_down_enabled);
  w = b ? p->speedlimit_on_item[TR_DOWN] : p->speedlimit_off_item[TR_DOWN];
  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), TRUE);

  w = p->speedlimit_on_item[TR_UP];
  tr_formatter_speed_KBps (buf1, gtr_pref_int_get (TR_KEY_speed_limit_up), sizeof (buf1));
  gtr_label_set_text (GTK_LABEL (gtk_bin_get_child (GTK_BIN (w))), buf1);

  b = gtr_pref_flag_get (TR_KEY_speed_limit_up_enabled);
  w = b ? p->speedlimit_on_item[TR_UP] : p->speedlimit_off_item[TR_UP];
  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), TRUE);

  tr_strlratio (buf1, gtr_pref_double_get (TR_KEY_ratio_limit), sizeof (buf1));
  g_snprintf (buf2, sizeof (buf2), _("Stop at Ratio (%s)"), buf1);
  gtr_label_set_text (GTK_LABEL (gtk_bin_get_child (GTK_BIN (p->ratio_on_item))), buf2);

  b = gtr_pref_flag_get (TR_KEY_ratio_limit_enabled);
  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (b ? p->ratio_on_item : p->ratio_off_item), TRUE);

  gtk_menu_popup (GTK_MENU (p->options_menu), NULL, NULL, NULL, NULL, 0, gtk_get_current_event_time ());
}

/***
****  PUBLIC
***/

GtkWidget *
gtr_window_new (GtkApplication * app, GtkUIManager * ui_mgr, TrCore * core)
{
  int              i, n;
  const char     * pch, * style;
  PrivateData    * p;
  GtkWidget      * ul_lb, * dl_lb;
  GtkWidget      * mainmenu, *toolbar, *filter, *list, *status;
  GtkWidget      * vbox, *w, *self, *h, *hbox, *menu;
  GtkWindow      * win;
  GtkCssProvider * css_provider;
  GSList         * l;

  p = g_new0 (PrivateData, 1);

  /* make the window */
  self = gtk_application_window_new (app);
  g_object_set_qdata_full (G_OBJECT (self), get_private_data_key (), p, privateFree);
  win = GTK_WINDOW (self);
  gtk_window_set_title (win, g_get_application_name ());
  gtk_window_set_role (win, "tr-main");
  gtk_window_set_default_size (win,
                               gtr_pref_int_get (TR_KEY_main_window_width),
                               gtr_pref_int_get (TR_KEY_main_window_height));
  gtk_window_move (win, gtr_pref_int_get (TR_KEY_main_window_x),
                        gtr_pref_int_get (TR_KEY_main_window_y));
  if (gtr_pref_flag_get (TR_KEY_main_window_is_maximized))
    gtk_window_maximize (win);
  gtk_window_add_accel_group (win, gtk_ui_manager_get_accel_group (ui_mgr));
  /* Add style provider to the window. */
  /* Please move it to separate .css file if you’re adding more styles here. */
  style = ".tr-workarea {border-width: 1px 0; border-style: solid; border-radius: 0;}";
  css_provider = gtk_css_provider_new ();
  gtk_css_provider_load_from_data (css_provider, style,
                                   strlen (style), NULL);
  gtk_style_context_add_provider_for_screen(gdk_screen_get_default (),
                                            GTK_STYLE_PROVIDER (css_provider),
                                            GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);

  /* window's main container */
  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
  gtk_container_add (GTK_CONTAINER (self), vbox);

  /* main menu */
  mainmenu = gtr_action_get_widget ("/main-window-menu");
  w = gtr_action_get_widget ("/main-window-menu/torrent-menu/torrent-reannounce");
  g_signal_connect (w, "query-tooltip", G_CALLBACK (onAskTrackerQueryTooltip), p);

  /* toolbar */
  toolbar = p->toolbar = gtr_action_get_widget ("/main-window-toolbar");
  gtk_style_context_add_class (gtk_widget_get_style_context (toolbar),
                               GTK_STYLE_CLASS_PRIMARY_TOOLBAR);
  gtr_action_set_important ("open-torrent-toolbar", TRUE);
  gtr_action_set_important ("show-torrent-properties", TRUE);

  /* filter */
  h = filter = p->filter = gtr_filter_bar_new (gtr_core_session (core),
                                               gtr_core_model (core),
                                               &p->filter_model);
  gtk_container_set_border_width (GTK_CONTAINER (h), GUI_PAD_SMALL);

  /* status menu */
  menu = p->status_menu = gtk_menu_new ();
  l = NULL;
  pch = gtr_pref_string_get (TR_KEY_statusbar_stats);
  for (i=0, n=G_N_ELEMENTS (stats_modes); i<n; ++i)
    {
      const char * val = stats_modes[i].val;
      w = gtk_radio_menu_item_new_with_label (l, _ (stats_modes[i].i18n));
      l = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (w));
      gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), !strcmp (val, pch));
      g_object_set_data (G_OBJECT (w), STATS_MODE, (gpointer)stats_modes[i].val);
      g_signal_connect (w, "toggled", G_CALLBACK (status_menu_toggled_cb), p);
      gtk_menu_shell_append (GTK_MENU_SHELL (menu), w);
      gtk_widget_show (w);
    }

  /* status */
  h = status = p->status = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, GUI_PAD_BIG);
  gtk_container_set_border_width (GTK_CONTAINER (h), GUI_PAD_SMALL);

  w = gtk_button_new ();
  gtk_container_add (GTK_CONTAINER (w), gtk_image_new_from_stock ("utilities", -1));
  gtk_widget_set_tooltip_text (w, _("Options"));
  gtk_box_pack_start (GTK_BOX (h), w, 0, 0, 0);
  gtk_button_set_relief (GTK_BUTTON (w), GTK_RELIEF_NONE);
  p->options_menu = createOptionsMenu (p);
  g_signal_connect (w, "clicked", G_CALLBACK (onOptionsClicked), p);

  p->alt_speed_image = gtk_image_new ();
  w = p->alt_speed_button = gtk_toggle_button_new ();
  gtk_button_set_image (GTK_BUTTON (w), p->alt_speed_image);
  gtk_button_set_relief (GTK_BUTTON (w), GTK_RELIEF_NONE);
  g_signal_connect (w, "toggled", G_CALLBACK (alt_speed_toggled_cb), p);
  gtk_box_pack_start (GTK_BOX (h), w, 0, 0, 0);

  w = gtk_label_new ("N Torrents");
  p->gutter_lb = GTK_LABEL (w);
  gtk_label_set_single_line_mode (p->gutter_lb, TRUE);
  gtk_box_pack_start (GTK_BOX (h), w, 1, 1, GUI_PAD);

  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, GUI_PAD);
    w = gtk_alignment_new (0.0f, 0.0f, 0.0f, 0.0f);
    gtk_widget_set_size_request (w, GUI_PAD, 0u);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    w = ul_lb = gtk_label_new (NULL);
    p->ul_lb = GTK_LABEL (w);
    gtk_label_set_single_line_mode (p->ul_lb, TRUE);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    w = gtk_image_new_from_stock (GTK_STOCK_GO_UP, GTK_ICON_SIZE_MENU);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
  gtk_box_pack_end (GTK_BOX (h), hbox, FALSE, FALSE, 0);

  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, GUI_PAD);
    w = gtk_alignment_new (0.0f, 0.0f, 0.0f, 0.0f);
    gtk_widget_set_size_request (w, GUI_PAD, 0u);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    w = dl_lb = gtk_label_new (NULL);
    p->dl_lb = GTK_LABEL (w);
    gtk_label_set_single_line_mode (p->dl_lb, TRUE);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    w = gtk_image_new_from_stock (GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_MENU);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
  gtk_box_pack_end (GTK_BOX (h), hbox, FALSE, FALSE, 0);

  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, GUI_PAD);
    w = gtk_button_new ();
    gtk_widget_set_tooltip_text (w, _("Statistics"));
    gtk_container_add (GTK_CONTAINER (w), gtk_image_new_from_stock ("ratio", -1));
    gtk_button_set_relief (GTK_BUTTON (w), GTK_RELIEF_NONE);
    g_signal_connect (w, "clicked", G_CALLBACK (onYinYangReleased), p);
    gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
    w = gtk_label_new (NULL);
    p->stats_lb = GTK_LABEL (w);
    gtk_label_set_single_line_mode (p->stats_lb, TRUE);
    gtk_box_pack_end (GTK_BOX (hbox), w, FALSE, FALSE, 0);
  gtk_box_pack_end (GTK_BOX (h), hbox, FALSE, FALSE, 0);


  /* workarea */
  p->view = makeview (p);
  w = list = p->scroll = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (w),
                                  GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (w),
                                       GTK_SHADOW_OUT);
  gtk_style_context_add_class (gtk_widget_get_style_context (w), "tr-workarea");
  gtk_container_add (GTK_CONTAINER (w), p->view);

  /* lay out the widgets */
  gtk_box_pack_start (GTK_BOX (vbox), mainmenu, FALSE, FALSE, 0);
  gtk_box_pack_start (GTK_BOX (vbox), toolbar, FALSE, FALSE, 0);
  gtk_box_pack_start (GTK_BOX (vbox), filter, FALSE, FALSE, 0);
  gtk_box_pack_start (GTK_BOX (vbox), list, TRUE, TRUE, 0);
  gtk_box_pack_start (GTK_BOX (vbox), status, FALSE, FALSE, 0);

  {
    /* this is to determine the maximum width/height for the label */
    int w=0, h=0;
    PangoLayout * pango_layout;
    pango_layout = gtk_widget_create_pango_layout (ul_lb, "999.99 kB/s");
    pango_layout_get_pixel_size (pango_layout, &w, &h);
    gtk_widget_set_size_request (ul_lb, w, h);
    gtk_widget_set_size_request (dl_lb, w, h);
    gtk_misc_set_alignment (GTK_MISC (ul_lb), 1.0, 0.5);
    gtk_misc_set_alignment (GTK_MISC (dl_lb), 1.0, 0.5);
    g_object_unref (G_OBJECT (pango_layout));
  }

  /* show all but the window */
  gtk_widget_show_all (vbox);

  /* listen for prefs changes that affect the window */
  p->core = core;
  prefsChanged (core, TR_KEY_compact_view, self);
  prefsChanged (core, TR_KEY_show_filterbar, self);
  prefsChanged (core, TR_KEY_show_statusbar, self);
  prefsChanged (core, TR_KEY_statusbar_stats, self);
  prefsChanged (core, TR_KEY_show_toolbar, self);
  prefsChanged (core, TR_KEY_alt_speed_enabled, self);
  p->pref_handler_id = g_signal_connect (core, "prefs-changed",
                                         G_CALLBACK (prefsChanged), self);

  tr_sessionSetAltSpeedFunc (gtr_core_session (core), onAltSpeedToggled, p);

  return self;
}

static void
updateTorrentCount (PrivateData * p)
{
  if (p && p->core)
    {
      char buf[512];
      const int torrentCount = gtk_tree_model_iter_n_children (gtr_core_model (p->core), NULL);
      const int visibleCount = gtk_tree_model_iter_n_children (p->filter_model, NULL);

      if (!torrentCount)
        *buf = '\0';
      else if (torrentCount != visibleCount)
        g_snprintf (buf, sizeof (buf),
                    ngettext ("%1$'d of %2$'d Torrent",
                              "%1$'d of %2$'d Torrents",
                              torrentCount),
                    visibleCount, torrentCount);
      else
        g_snprintf (buf, sizeof (buf),
                    ngettext ("%'d Torrent", "%'d Torrents", torrentCount),
                    torrentCount);

      gtr_label_set_text (p->gutter_lb, buf);
    }
}

static void
updateStats (PrivateData * p)
{
  const char * pch;
  char up[32];
  char down[32];
  char ratio[32];
  char buf[512];
  struct tr_session_stats stats;
  tr_session * session = gtr_core_session (p->core);

  /* update the stats */
  pch = gtr_pref_string_get (TR_KEY_statusbar_stats);
  if (!strcmp (pch, "session-ratio"))
    {
      tr_sessionGetStats (session, &stats);
      tr_strlratio (ratio, stats.ratio, sizeof (ratio));
      g_snprintf (buf, sizeof (buf), _("Ratio: %s"), ratio);
    }
  else if (!strcmp (pch, "session-transfer"))
    {
      tr_sessionGetStats (session, &stats);
      tr_strlsize (up, stats.uploadedBytes, sizeof (up));
      tr_strlsize (down, stats.downloadedBytes, sizeof (down));
      /* Translators: "size|" is here for disambiguation. Please remove it from your translation.
         %1$s is the size of the data we've downloaded
         %2$s is the size of the data we've uploaded */
      g_snprintf (buf, sizeof (buf),
                  Q_("Down: %1$s, Up: %2$s"), down, up);
    }
  else if (!strcmp (pch, "total-transfer"))
    {
      tr_sessionGetCumulativeStats (session, &stats);
      tr_strlsize (up, stats.uploadedBytes, sizeof (up));
      tr_strlsize (down, stats.downloadedBytes, sizeof (down));
      /* Translators: "size|" is here for disambiguation. Please remove it from your translation.
         %1$s is the size of the data we've downloaded
         %2$s is the size of the data we've uploaded */
      g_snprintf (buf, sizeof (buf),
                  Q_( "size|Down: %1$s, Up: %2$s"), down, up);
    }
  else /* default is total-ratio */
    {
      tr_sessionGetCumulativeStats (session, &stats);
      tr_strlratio (ratio, stats.ratio, sizeof (ratio));
      g_snprintf (buf, sizeof (buf), _("Ratio: %s"), ratio);
    }

  gtr_label_set_text (p->stats_lb, buf);
}

static void
updateSpeeds (PrivateData * p)
{
  tr_session * session = gtr_core_session (p->core);

  if (session != NULL)
    {
      char buf[128];
      double up=0, down=0;
      GtkTreeIter iter;
      GtkTreeModel * model = gtr_core_model (p->core);

      if (gtk_tree_model_iter_nth_child (model, &iter, NULL, 0)) do
        {
          double u, d;
          gtk_tree_model_get (model, &iter, MC_SPEED_UP, &u,
                                            MC_SPEED_DOWN, &d,
                                            -1);
          up += u;
          down += d;
        }
      while (gtk_tree_model_iter_next (model, &iter));

      tr_formatter_speed_KBps (buf, down, sizeof (buf));
      gtr_label_set_text (p->dl_lb, buf);

      tr_formatter_speed_KBps (buf, up, sizeof (buf));
      gtr_label_set_text (p->ul_lb, buf);
    }
}

void
gtr_window_refresh (GtkWindow * self)
{
  PrivateData * p = get_private_data (self);

  if (p && p->core && gtr_core_session (p->core))
    {
      updateSpeeds (p);
      updateTorrentCount (p);
      updateStats (p);
    }
}

GtkTreeSelection*
gtr_window_get_selection (GtkWindow * w)
{
    return get_private_data (w)->selection;
}

void
gtr_window_set_busy (GtkWindow * win, gboolean isBusy)
{
  GtkWidget * w = GTK_WIDGET (win);

  if (w && gtk_widget_get_realized (w))
    {
      GdkDisplay * display = gtk_widget_get_display (w);
      GdkCursor * cursor = isBusy ? gdk_cursor_new_for_display (display, GDK_WATCH) : NULL;

      gdk_window_set_cursor (gtk_widget_get_window (w), cursor);
      gdk_display_flush (display);

      g_clear_object (&cursor);
    }
}