/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

/* Marco theme viewer and test app main() */

/*
 * Copyright (C) 2002 Havoc Pennington
 *
 * This program 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 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include <config.h>
#include "util.h"
#include "theme.h"
#include "theme-parser.h"
#include "preview-widget.h"
#include <gtk/gtk.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>

#include <libintl.h>
#define _(x) dgettext (GETTEXT_PACKAGE, x)
#define N_(x) x

/* We need to compute all different button arrangements
 * in terms of button location. We don't care about
 * different arrangements in terms of button function.
 *
 * So if dups are allowed, from 0-4 buttons on the left, from 0-4 on
 * the right, 5x5=25 combinations.
 *
 * If no dups, 0-4 on left determines the number on the right plus
 * we have a special case for the "no buttons on either side" case.
 */
#ifndef ALLOW_DUPLICATE_BUTTONS
#define BUTTON_LAYOUT_COMBINATIONS (MAX_BUTTONS_PER_CORNER + 1 + 1)
#else
#define BUTTON_LAYOUT_COMBINATIONS ((MAX_BUTTONS_PER_CORNER+1)*(MAX_BUTTONS_PER_CORNER+1))
#endif

enum
{
  FONT_SIZE_SMALL,
  FONT_SIZE_NORMAL,
  FONT_SIZE_LARGE,
  FONT_SIZE_LAST
};

static MetaTheme *global_theme = NULL;
static GtkWidget *previews[META_FRAME_TYPE_LAST*FONT_SIZE_LAST + BUTTON_LAYOUT_COMBINATIONS] = { NULL, };
static double milliseconds_to_draw_frame = 0.0;

static void run_theme_benchmark (void);

static const gchar *xml =
  "<interface>"
    "<menu id='menubar'>"
      "<submenu>"
        "<attribute name='label'>Windows</attribute>"
        "<section>"
          "<item>"
            "<attribute name='label'>Dialog</attribute>"
            "<attribute name='action'>theme-viewer.dialog1</attribute>"
            "<attribute name='accel'>&lt;control&gt;d</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Modal dialog</attribute>"
            "<attribute name='action'>theme-viewer.dialog2</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Utility</attribute>"
            "<attribute name='action'>theme-viewer.utility</attribute>"
            "<attribute name='accel'>&lt;control&gt;u</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Splashscreen</attribute>"
            "<attribute name='action'>theme-viewer.splashscreen</attribute>"
            "<attribute name='accel'>&lt;control&gt;s</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Top dock</attribute>"
            "<attribute name='action'>theme-viewer.top-dock</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Bottom dock</attribute>"
            "<attribute name='action'>theme-viewer.bottom-dock</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Left dock</attribute>"
            "<attribute name='action'>theme-viewer.left-dock</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Right dock</attribute>"
            "<attribute name='action'>theme-viewer.right-dock</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>All docks</attribute>"
            "<attribute name='action'>theme-viewer.all-docks</attribute>"
          "</item>"
          "<item>"
            "<attribute name='label'>Desktop</attribute>"
            "<attribute name='action'>theme-viewer.desktop</attribute>"
          "</item>"
        "</section>"
      "</submenu>"
    "</menu>"
  "</interface>";

static GActionEntry theme_viewer_entries[] =
{
  /* menubar */
  { "dialog1",      NULL, NULL, NULL, NULL, {} },
  { "dialog2",      NULL, NULL, NULL, NULL, {} },
  { "utility",      NULL, NULL, NULL, NULL, {} },
  { "splashscreen", NULL, NULL, NULL, NULL, {} },
  { "top-dock",     NULL, NULL, NULL, NULL, {} },
  { "bottom-dock",  NULL, NULL, NULL, NULL, {} },
  { "left-dock",    NULL, NULL, NULL, NULL, {} },
  { "right-dock",   NULL, NULL, NULL, NULL, {} },
  { "all-docks",    NULL, NULL, NULL, NULL, {} },
  { "desktop",      NULL, NULL, NULL, NULL, {} },
  /* toolbar */
  { "new",          NULL, NULL, NULL, NULL, {} },
  { "open",         NULL, NULL, NULL, NULL, {} },
  { "quit",         NULL, NULL, NULL, NULL, {} }
};

static GtkWidget *
create_toolbar (void)
{
  GtkWidget *toolbar;
  GtkToolItem *item;

  toolbar = gtk_toolbar_new ();

  item = gtk_tool_button_new (gtk_image_new_from_icon_name ("document-new", GTK_ICON_SIZE_SMALL_TOOLBAR), NULL);
  gtk_tool_item_set_tooltip_markup (item, "Open another one of these windows");
  gtk_actionable_set_action_name (GTK_ACTIONABLE (item), "theme-viewer.new");
  gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);

  item = gtk_tool_button_new (gtk_image_new_from_icon_name ("document-open", GTK_ICON_SIZE_SMALL_TOOLBAR), NULL);
  gtk_tool_item_set_tooltip_markup (item, "This is a demo button with an 'open' icon");
  gtk_actionable_set_action_name (GTK_ACTIONABLE (item), "theme-viewer.open");
  gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);

  item = gtk_tool_button_new (gtk_image_new_from_icon_name ("application-exit", GTK_ICON_SIZE_SMALL_TOOLBAR), NULL);
  gtk_tool_item_set_tooltip_markup (item, "This is a demo button with a 'quit' icon");
  gtk_actionable_set_action_name (GTK_ACTIONABLE (item), "theme-viewer.quit");
  gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);

  return toolbar;
}

static GtkWidget *
normal_contents (void)
{
  GtkWidget *grid;
  GtkWidget *statusbar;
  GtkWidget *contents;
  GtkWidget *sw;
  GtkBuilder *builder;

  grid = gtk_grid_new ();
  builder = gtk_builder_new_from_string (xml, -1);

  /* create menu items */
  GMenuModel *model = G_MENU_MODEL (gtk_builder_get_object (builder, "menubar"));
  GtkWidget *menubar = gtk_menu_bar_new_from_model (model);
  gtk_grid_attach (GTK_GRID (grid), menubar, 0, 0, 1, 1);
  gtk_widget_set_hexpand (menubar, TRUE);

   /* Create the toolbar */
  GtkWidget *toolbar = create_toolbar ();
  gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 1, 1, 1);
  gtk_widget_set_hexpand (toolbar, TRUE);

  /* Create document
   */

  sw = gtk_scrolled_window_new (NULL, NULL);
  gtk_widget_set_hexpand (sw, TRUE);
  gtk_widget_set_vexpand (sw, TRUE);

  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                  GTK_POLICY_AUTOMATIC,
                                  GTK_POLICY_AUTOMATIC);

  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
                                       GTK_SHADOW_IN);

  gtk_grid_attach (GTK_GRID (grid),
                   sw,
                   0, 2, 1, 1);

  contents = gtk_text_view_new ();
  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (contents),
                               PANGO_WRAP_WORD);

  gtk_container_add (GTK_CONTAINER (sw),
                     contents);

  /* Create statusbar */

  statusbar = gtk_statusbar_new ();
  gtk_widget_set_hexpand (statusbar, TRUE);
  gtk_grid_attach (GTK_GRID (grid),
                   statusbar,
                   0, 3, 1, 1);

  gtk_widget_show_all (grid);

  g_object_unref (builder);

  return grid;
}

static void
update_spacings (GtkWidget *vbox,
                 GtkWidget *action_area)
{
  gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
  gtk_box_set_spacing (GTK_BOX (action_area), 10);
  gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
}

static GtkWidget*
dialog_contents (void)
{
  GtkWidget *vbox;
  GtkWidget *hbox;
  GtkWidget *action_area;
  GtkWidget *label;
  GtkWidget *image;
  GtkWidget *button;

  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);

  action_area = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);

  gtk_button_box_set_layout (GTK_BUTTON_BOX (action_area),
                             GTK_BUTTONBOX_END);

  button = gtk_button_new_with_mnemonic (_("_OK"));
  gtk_button_set_image (GTK_BUTTON (button), gtk_image_new_from_icon_name ("gtk-ok", GTK_ICON_SIZE_BUTTON));

  gtk_box_pack_end (GTK_BOX (action_area),
                    button,
                    FALSE, TRUE, 0);

  gtk_box_pack_end (GTK_BOX (vbox), action_area,
                    FALSE, TRUE, 0);

  update_spacings (vbox, action_area);

  label = gtk_label_new (_("This is a sample message in a sample dialog"));
  image = gtk_image_new_from_icon_name ("dialog-information",
                                        GTK_ICON_SIZE_DIALOG);
  gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
  gtk_widget_set_valign (image, GTK_ALIGN_START);

  gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
  gtk_label_set_selectable (GTK_LABEL (label), TRUE);

  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);

  gtk_box_pack_start (GTK_BOX (hbox), image,
                      FALSE, FALSE, 0);

  gtk_box_pack_start (GTK_BOX (hbox), label,
                      TRUE, TRUE, 0);

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

  gtk_widget_show_all (vbox);

  return vbox;
}

static GtkWidget*
utility_contents (void)
{
  GtkWidget *grid;
  GtkWidget *button;
  int i, j;

  grid = gtk_grid_new ();

  i = 0;
  while (i < 3)
    {
      j = 0;
      while (j < 4)
        {
          char *str;

          str = g_strdup_printf ("_%c", (char) ('A' + 4*i + j));

          button = gtk_button_new_with_mnemonic (str);

          g_free (str);

          gtk_widget_set_hexpand (button, TRUE);
          gtk_widget_set_vexpand (button, TRUE);

          gtk_grid_attach (GTK_GRID (grid),
                           button,
                           i, j, 1, 1);

          ++j;
        }

      ++i;
    }

  gtk_widget_show_all (grid);

  return grid;
}

static GtkWidget*
menu_contents (void)
{
  GtkWidget *vbox;
  GtkWidget *mi;
  int i;
  GtkWidget *frame;

  frame = gtk_frame_new (NULL);
  gtk_frame_set_shadow_type (GTK_FRAME (frame),
                             GTK_SHADOW_OUT);

  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);

  i = 0;
  while (i < 10)
    {
      char *str = g_strdup_printf (_("Fake menu item %d\n"), i + 1);
      mi = gtk_label_new (str);
      gtk_widget_set_halign (mi, GTK_ALIGN_START);
      gtk_widget_set_valign (mi, GTK_ALIGN_CENTER);
      g_free (str);
      gtk_box_pack_start (GTK_BOX (vbox), mi, FALSE, FALSE, 0);

      ++i;
    }

  gtk_container_add (GTK_CONTAINER (frame), vbox);

  gtk_widget_show_all (frame);

  return frame;
}

static GtkWidget*
border_only_contents (void)
{
  GtkWidget *event_box;
  GtkWidget *vbox;
  GtkWidget *w;
  GdkRGBA color;

  event_box = gtk_event_box_new ();

  color.red = 0.6;
  color.green = 0;
  color.blue = 0.6;
  color.alpha = 1.0;
  gtk_widget_override_background_color (event_box, 0, &color);

  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
  gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);

  w = gtk_label_new (_("Border-only window"));
  gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 0);
  w = gtk_button_new_with_label (_("Bar"));
  gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 0);

  gtk_container_add (GTK_CONTAINER (event_box), vbox);

  gtk_widget_show_all (event_box);

  return event_box;
}

static GtkWidget*
get_window_contents (MetaFrameType  type,
                     const char   **title)
{
  switch (type)
    {
    case META_FRAME_TYPE_NORMAL:
      *title = _("Normal Application Window");
      return normal_contents ();

    case META_FRAME_TYPE_DIALOG:
      *title = _("Dialog Box");
      return dialog_contents ();

    case META_FRAME_TYPE_MODAL_DIALOG:
      *title = _("Modal Dialog Box");
      return dialog_contents ();

    case META_FRAME_TYPE_UTILITY:
      *title = _("Utility Palette");
      return utility_contents ();

    case META_FRAME_TYPE_MENU:
      *title = _("Torn-off Menu");
      return menu_contents ();

    case META_FRAME_TYPE_BORDER:
      *title = _("Border");
      return border_only_contents ();

    case META_FRAME_TYPE_ATTACHED:
      *title = _("Attached Modal Dialog");
      return dialog_contents ();

    case META_FRAME_TYPE_LAST:
      g_assert_not_reached ();
      break;
    }

  return NULL;
}

static MetaFrameFlags
get_window_flags (MetaFrameType type)
{
  MetaFrameFlags flags;

  flags = META_FRAME_ALLOWS_DELETE |
    META_FRAME_ALLOWS_MENU |
    META_FRAME_ALLOWS_MINIMIZE |
    META_FRAME_ALLOWS_MAXIMIZE |
    META_FRAME_ALLOWS_VERTICAL_RESIZE |
    META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
    META_FRAME_HAS_FOCUS |
    META_FRAME_ALLOWS_SHADE |
    META_FRAME_ALLOWS_MOVE;

  switch (type)
    {
    case META_FRAME_TYPE_NORMAL:
      break;

    case META_FRAME_TYPE_DIALOG:
    case META_FRAME_TYPE_MODAL_DIALOG:
      flags &= ~(META_FRAME_ALLOWS_MINIMIZE |
                 META_FRAME_ALLOWS_MAXIMIZE);
      break;

    case META_FRAME_TYPE_UTILITY:
      flags &= ~(META_FRAME_ALLOWS_MINIMIZE |
                 META_FRAME_ALLOWS_MAXIMIZE);
      break;

    case META_FRAME_TYPE_MENU:
      flags &= ~(META_FRAME_ALLOWS_MINIMIZE |
                 META_FRAME_ALLOWS_MAXIMIZE);
      break;

    case META_FRAME_TYPE_BORDER:
      break;

    case META_FRAME_TYPE_ATTACHED:
      break;

    case META_FRAME_TYPE_LAST:
      g_assert_not_reached ();
      break;
    }

  return flags;
}

static void
override_font (GtkWidget   *widget,
               const gchar *font)
{
  gchar          *css;
  GtkCssProvider *provider;

  provider = gtk_css_provider_new ();

  css = g_strdup_printf ("* { font: %s; }", font);
  gtk_css_provider_load_from_data (provider, css, -1, NULL);
  g_free (css);

  gtk_style_context_add_provider (gtk_widget_get_style_context (widget),
                                  GTK_STYLE_PROVIDER (provider),
                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
  g_object_unref (provider);
}

static GtkWidget*
preview_collection (int font_size,
                    const PangoFontDescription *base_desc)
{
  GtkWidget *box;
  GtkWidget *sw;
  GdkRGBA desktop_color;
  int i;
  GtkWidget *eventbox;

  sw = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                  GTK_POLICY_AUTOMATIC,
                                  GTK_POLICY_AUTOMATIC);

  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
  gtk_box_set_spacing (GTK_BOX (box), 20);
  gtk_container_set_border_width (GTK_CONTAINER (box), 20);

  eventbox = gtk_event_box_new ();
  gtk_container_add (GTK_CONTAINER (eventbox), box);

  gtk_container_add (GTK_CONTAINER (sw), eventbox);

  GSimpleActionGroup *action_group = g_simple_action_group_new ();
  g_action_map_add_action_entries (G_ACTION_MAP (action_group),
                                   theme_viewer_entries,
                                   G_N_ELEMENTS (theme_viewer_entries),
                                   NULL);
  gtk_widget_insert_action_group (sw, "theme-viewer", G_ACTION_GROUP (action_group));
  g_object_unref (action_group);

  desktop_color.red = 0.32;
  desktop_color.green = 0.46;
  desktop_color.blue = 0.65;
  desktop_color.alpha = 1.0;

  gtk_widget_override_background_color (eventbox, 0, &desktop_color);

  i = 0;
  while (i < META_FRAME_TYPE_LAST)
    {
      const char *title = NULL;
      GtkWidget *contents;
      GtkAlign xalign, yalign;
      GtkWidget *eventbox2;
      GtkWidget *preview;
      PangoFontDescription *font_desc;
      gchar *font_string;
      double scale;

      eventbox2 = gtk_event_box_new ();

      preview = meta_preview_new ();

      gtk_container_add (GTK_CONTAINER (eventbox2), preview);

      meta_preview_set_frame_type (META_PREVIEW (preview), i);
      meta_preview_set_frame_flags (META_PREVIEW (preview),
                                    get_window_flags (i));

      meta_preview_set_theme (META_PREVIEW (preview), global_theme);

      contents = get_window_contents (i, &title);

      meta_preview_set_title (META_PREVIEW (preview), title);

      gtk_container_add (GTK_CONTAINER (preview), contents);

      if (i == META_FRAME_TYPE_MENU)
        {
          xalign = GTK_ALIGN_START;
          yalign = GTK_ALIGN_START;
        }
      else
        {
          xalign = GTK_ALIGN_FILL;
          yalign = GTK_ALIGN_FILL;
        }

      gtk_widget_set_halign (eventbox2, xalign);
      gtk_widget_set_valign (eventbox2, yalign);

      gtk_box_pack_start (GTK_BOX (box), eventbox2, TRUE, TRUE, 0);

      switch (font_size)
        {
        case FONT_SIZE_SMALL:
          scale = PANGO_SCALE_XX_SMALL;
          break;
        case FONT_SIZE_LARGE:
          scale = PANGO_SCALE_XX_LARGE;
          break;
        default:
          scale = 1.0;
          break;
        }

      if (scale != 1.0)
        {
          font_desc = pango_font_description_new ();

          pango_font_description_set_size (font_desc,
                                           MAX (pango_font_description_get_size (base_desc) * scale, 1));

          font_string = pango_font_description_to_string (font_desc);
          override_font (preview, font_string);
          g_free (font_string);

          pango_font_description_free (font_desc);
        }

      previews[font_size*META_FRAME_TYPE_LAST + i] = preview;

      ++i;
    }

  return sw;
}

static MetaButtonLayout different_layouts[BUTTON_LAYOUT_COMBINATIONS];

static void
init_layouts (void)
{
  int i;

  /* Blank out all the layouts */
  i = 0;
  while (i < (int) G_N_ELEMENTS (different_layouts))
    {
      int j;

      j = 0;
      while (j < MAX_BUTTONS_PER_CORNER)
        {
          different_layouts[i].left_buttons[j] = META_BUTTON_FUNCTION_LAST;
          different_layouts[i].right_buttons[j] = META_BUTTON_FUNCTION_LAST;
          ++j;
        }
      ++i;
    }

#ifndef ALLOW_DUPLICATE_BUTTONS
  i = 0;
  while (i <= MAX_BUTTONS_PER_CORNER)
    {
      int j;

      j = 0;
      while (j < i)
        {
          different_layouts[i].right_buttons[j] = (MetaButtonFunction) j;
          ++j;
        }
      while (j < MAX_BUTTONS_PER_CORNER)
        {
          different_layouts[i].left_buttons[j-i] = (MetaButtonFunction) j;
          ++j;
        }

      ++i;
    }

  /* Special extra case for no buttons on either side */
  different_layouts[i].left_buttons[0] = META_BUTTON_FUNCTION_LAST;
  different_layouts[i].right_buttons[0] = META_BUTTON_FUNCTION_LAST;

#else
  /* FIXME this code is if we allow duplicate buttons,
   * which we currently do not
   */
  int left;
  int i;

  left = 0;
  i = 0;

  while (left < MAX_BUTTONS_PER_CORNER)
    {
      int right;

      right = 0;

      while (right < MAX_BUTTONS_PER_CORNER)
        {
          int j;

          static MetaButtonFunction left_functions[MAX_BUTTONS_PER_CORNER] = {
            META_BUTTON_FUNCTION_MENU,
            META_BUTTON_FUNCTION_MINIMIZE,
            META_BUTTON_FUNCTION_MAXIMIZE,
            META_BUTTON_FUNCTION_CLOSE
          };
          static MetaButtonFunction right_functions[MAX_BUTTONS_PER_CORNER] = {
            META_BUTTON_FUNCTION_MINIMIZE,
            META_BUTTON_FUNCTION_MAXIMIZE,
            META_BUTTON_FUNCTION_CLOSE,
            META_BUTTON_FUNCTION_MENU
          };

          g_assert (i < BUTTON_LAYOUT_COMBINATIONS);

          j = 0;
          while (j <= left)
            {
              different_layouts[i].left_buttons[j] = left_functions[j];
              ++j;
            }

          j = 0;
          while (j <= right)
            {
              different_layouts[i].right_buttons[j] = right_functions[j];
              ++j;
            }

          ++i;

          ++right;
        }

      ++left;
    }
#endif
}


static GtkWidget*
previews_of_button_layouts (void)
{
  static gboolean initted = FALSE;
  GtkWidget *box;
  GtkWidget *sw;
  GdkRGBA desktop_color;
  int i;
  GtkWidget *eventbox;

  if (!initted)
    {
      init_layouts ();
      initted = TRUE;
    }

  sw = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                  GTK_POLICY_AUTOMATIC,
                                  GTK_POLICY_AUTOMATIC);

  box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
  gtk_box_set_spacing (GTK_BOX (box), 20);
  gtk_container_set_border_width (GTK_CONTAINER (box), 20);

  eventbox = gtk_event_box_new ();
  gtk_container_add (GTK_CONTAINER (eventbox), box);

  gtk_container_add (GTK_CONTAINER (sw), eventbox);

  desktop_color.red = 0.32;
  desktop_color.green = 0.46;
  desktop_color.blue = 0.65;
  desktop_color.alpha = 1.0;

  gtk_widget_override_background_color (eventbox, 0, &desktop_color);

  i = 0;
  while (i < BUTTON_LAYOUT_COMBINATIONS)
    {
      GtkWidget *eventbox2;
      GtkWidget *preview;
      char *title;

      eventbox2 = gtk_event_box_new ();

      preview = meta_preview_new ();

      gtk_container_add (GTK_CONTAINER (eventbox2), preview);

      meta_preview_set_theme (META_PREVIEW (preview), global_theme);

      title = g_strdup_printf (_("Button layout test %d"), i+1);
      meta_preview_set_title (META_PREVIEW (preview), title);
      g_free (title);

      meta_preview_set_button_layout (META_PREVIEW (preview),
                                      &different_layouts[i]);

      gtk_widget_set_halign (eventbox2, GTK_ALIGN_FILL);

      gtk_box_pack_start (GTK_BOX (box), eventbox2, TRUE, TRUE, 0);

      previews[META_FRAME_TYPE_LAST*FONT_SIZE_LAST + i] = preview;

      ++i;
    }

  return sw;
}

static GtkWidget*
benchmark_summary (void)
{
  char *msg;
  GtkWidget *label;

  msg = g_strdup_printf (_("%g milliseconds to draw one window frame"),
                         milliseconds_to_draw_frame);
  label = gtk_label_new (msg);
  g_free (msg);

  return label;
}

int
main (int argc, char **argv)
{
  GtkWidget *window;
  GtkWidget *collection;
  GtkStyleContext *style;
  PangoFontDescription *font_desc;
  GError *err;
  clock_t start, end;
  GtkWidget *notebook;
  int i;

  bindtextdomain (GETTEXT_PACKAGE, MARCO_LOCALEDIR);
  textdomain(GETTEXT_PACKAGE);
  bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");

  gtk_init (&argc, &argv);

  if (g_getenv ("MARCO_DEBUG") != NULL)
    {
      meta_set_debugging (TRUE);
      meta_set_verbose (TRUE);
    }

  start = clock ();
  err = NULL;
  if (argc == 1)
    global_theme = meta_theme_load ("ClearlooksRe", &err);
  else if (argc == 2)
    global_theme = meta_theme_load (argv[1], &err);
  else
    {
      g_printerr (_("Usage: marco-theme-viewer [THEMENAME]\n"));
      exit (1);
    }
  end = clock ();

  if (global_theme == NULL)
    {
      g_printerr (_("Error loading theme: %s\n"),
                  err->message);
      g_error_free (err);
      exit (1);
    }

  g_print (_("Loaded theme \"%s\" in %g seconds\n"),
           global_theme->name,
           (end - start) / (double) CLOCKS_PER_SEC);

  run_theme_benchmark ();

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_default_size (GTK_WINDOW (window), 350, 350);

  if (strcmp (global_theme->name, global_theme->readable_name)==0)
    gtk_window_set_title (GTK_WINDOW (window),
                          global_theme->readable_name);
  else
    {
      /* The theme directory name is different from the name the theme
       * gives itself within its file.  Display both, directory name first.
       */
      gchar *title =  g_strconcat (global_theme->name, " - ",
                                   global_theme->readable_name,
                                   NULL);

      gtk_window_set_title (GTK_WINDOW (window),
                            title);

      g_free (title);
    }

  g_signal_connect (G_OBJECT (window), "destroy",
                    G_CALLBACK (gtk_main_quit), NULL);

  gtk_widget_realize (window);
  style = gtk_widget_get_style_context (window);
  gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL, "font", &font_desc, NULL);

  g_assert (style);
  g_assert (font_desc);

  notebook = gtk_notebook_new ();
  gtk_container_add (GTK_CONTAINER (window), notebook);

  collection = preview_collection (FONT_SIZE_NORMAL,
                                   font_desc);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                            collection,
                            gtk_label_new (_("Normal Title Font")));

  collection = preview_collection (FONT_SIZE_SMALL,
                                   font_desc);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                            collection,
                            gtk_label_new (_("Small Title Font")));

  collection = preview_collection (FONT_SIZE_LARGE,
                                   font_desc);
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                            collection,
                            gtk_label_new (_("Large Title Font")));

  collection = previews_of_button_layouts ();
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                            collection,
                            gtk_label_new (_("Button Layouts")));

  collection = benchmark_summary ();
  gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
                            collection,
                            gtk_label_new (_("Benchmark")));

  pango_font_description_free (font_desc);

  i = 0;
  while (i < (int) G_N_ELEMENTS (previews))
    {
      /* preview widget likes to be realized before its size request.
       * it's lame that way.
       */
      gtk_widget_realize (previews[i]);

      ++i;
    }

  gtk_widget_show_all (window);

  gtk_main ();

  return 0;
}


static MetaFrameFlags
get_flags (GtkWidget *widget)
{
  return META_FRAME_ALLOWS_DELETE |
    META_FRAME_ALLOWS_MENU |
    META_FRAME_ALLOWS_MINIMIZE |
    META_FRAME_ALLOWS_MAXIMIZE |
    META_FRAME_ALLOWS_VERTICAL_RESIZE |
    META_FRAME_ALLOWS_HORIZONTAL_RESIZE |
    META_FRAME_HAS_FOCUS |
    META_FRAME_ALLOWS_SHADE |
    META_FRAME_ALLOWS_MOVE;
}

static int
get_text_height (GtkWidget *widget)
{
  GtkStyleContext      *style;
  PangoFontDescription *font_desc;
  int                   text_height;

  style = gtk_widget_get_style_context (widget);
  gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL, "font", &font_desc, NULL);
  text_height = meta_pango_font_desc_get_text_height (font_desc, gtk_widget_get_pango_context (widget));
  pango_font_description_free (font_desc);

  return text_height;
}

static PangoLayout*
create_title_layout (GtkWidget *widget)
{
  PangoLayout *layout;

  layout = gtk_widget_create_pango_layout (widget, _("Window Title Goes Here"));

  return layout;
}

static void
run_theme_benchmark (void)
{
  GtkWidget* widget;
  cairo_surface_t *pixmap;
  cairo_t *cr;
  MetaFrameBorders borders;
  MetaButtonState button_states[META_BUTTON_TYPE_LAST] =
  {
    META_BUTTON_STATE_NORMAL,
    META_BUTTON_STATE_NORMAL,
    META_BUTTON_STATE_NORMAL,
    META_BUTTON_STATE_NORMAL
  };
  PangoLayout *layout;
  clock_t start;
  clock_t end;
  GTimer *timer;
  int i;
  MetaButtonLayout button_layout;
#define ITERATIONS 100
  int client_width;
  int client_height;
  int inc;

  widget = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_widget_realize (widget);

  meta_theme_get_frame_borders (global_theme,
                                META_FRAME_TYPE_NORMAL,
                                get_text_height (widget),
                                get_flags (widget),
                                &borders);

  layout = create_title_layout (widget);

  i = 0;
  while (i < MAX_BUTTONS_PER_CORNER)
    {
      button_layout.left_buttons[i] = META_BUTTON_FUNCTION_LAST;
      button_layout.right_buttons[i] = META_BUTTON_FUNCTION_LAST;
      ++i;
    }

  button_layout.left_buttons[0] = META_BUTTON_FUNCTION_MENU;

  button_layout.right_buttons[0] = META_BUTTON_FUNCTION_MINIMIZE;
  button_layout.right_buttons[1] = META_BUTTON_FUNCTION_MAXIMIZE;
  button_layout.right_buttons[2] = META_BUTTON_FUNCTION_CLOSE;

  timer = g_timer_new ();
  start = clock ();

  client_width = 50;
  client_height = 50;
  inc = 1000 / ITERATIONS; /* Increment to grow width/height,
                            * eliminates caching effects.
                            */

  i = 0;
  while (i < ITERATIONS)
    {
      /* Creating the pixmap in the loop is right, since
       * GDK does the same with its double buffering.
       */
      pixmap = gdk_window_create_similar_surface (gtk_widget_get_window (widget),
                                                  CAIRO_CONTENT_COLOR,
                                                  client_width + borders.visible.left + borders.visible.right,
                                                  client_height + borders.visible.top + borders.visible.bottom);
      cr = cairo_create (pixmap);

      meta_theme_draw_frame (global_theme,
                             gtk_widget_get_style_context (widget),
                             cr,
                             META_FRAME_TYPE_NORMAL,
                             get_flags (widget),
                             client_width, client_height,
                             layout,
                             get_text_height (widget),
                             &button_layout,
                             button_states,
                             meta_preview_get_mini_icon (),
                             meta_preview_get_icon ());

      cairo_destroy (cr);
      cairo_surface_destroy (pixmap);

      ++i;
      client_width += inc;
      client_height += inc;
    }

  end = clock ();
  g_timer_stop (timer);

  milliseconds_to_draw_frame = (g_timer_elapsed (timer, NULL) / (double) ITERATIONS) * 1000;

  g_print (_("Drew %d frames in %g client-side seconds (%g milliseconds per frame) and %g seconds wall clock time including X server resources (%g milliseconds per frame)\n"),
           ITERATIONS,
           ((double)end - (double)start) / CLOCKS_PER_SEC,
           (((double)end - (double)start) / CLOCKS_PER_SEC / (double) ITERATIONS) * 1000,
           g_timer_elapsed (timer, NULL),
           milliseconds_to_draw_frame);

  g_timer_destroy (timer);
  g_object_unref (G_OBJECT (layout));
  gtk_widget_destroy (widget);

#undef ITERATIONS
}