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#include <gtk/gtk.h>

#include "exampleapp.h"
#include "exampleappwin.h"

struct _ExampleAppWindow
{
  GtkApplicationWindow parent;

  GSettings *settings;
  GtkWidget *stack;
  GtkWidget *gears;
};

G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)

static void
example_app_window_init (ExampleAppWindow *win)
{
  GtkBuilder *builder;
  GMenuModel *menu;

  gtk_widget_init_template (GTK_WIDGET (win));

  builder = gtk_builder_new_from_resource ("/org/gtk/exampleapp/gears-menu.ui");
  menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (win->gears), menu);
  g_object_unref (builder);

  win->settings = g_settings_new ("org.gtk.exampleapp");

  g_settings_bind (win->settings, "transition",
                   win->stack, "transition-type",
                   G_SETTINGS_BIND_DEFAULT);
}

static void
example_app_window_dispose (GObject *object)
{
  ExampleAppWindow *win;

  win = EXAMPLE_APP_WINDOW (object);

  g_clear_object (&win->settings);

  G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
}

static void
example_app_window_class_init (ExampleAppWindowClass *class)
{
  G_OBJECT_CLASS (class)->dispose = example_app_window_dispose;

  gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                               "/org/gtk/exampleapp/window.ui");
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
}

ExampleAppWindow *
example_app_window_new (ExampleApp *app)
{
  return g_object_new (EXAMPLE_APP_WINDOW_TYPE, "application", app, NULL);
}

void
example_app_window_open (ExampleAppWindow *win,
                         GFile            *file)
{
  gchar *basename;
  GtkWidget *scrolled, *view;
  gchar *contents;
  gsize length;
  GtkTextBuffer *buffer;
  GtkTextTag *tag;
  GtkTextIter start_iter, end_iter;

  basename = g_file_get_basename (file);

  scrolled = gtk_scrolled_window_new ();
  gtk_widget_set_hexpand (scrolled, TRUE);
  gtk_widget_set_vexpand (scrolled, TRUE);
  view = gtk_text_view_new ();
  gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled), view);
  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);

  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

  if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
    {
      gtk_text_buffer_set_text (buffer, contents, length);
      g_free (contents);
    }

  tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
  g_settings_bind (win->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);

  gtk_text_buffer_get_start_iter (buffer, &start_iter);
  gtk_text_buffer_get_end_iter (buffer, &end_iter);
  gtk_text_buffer_apply_tag (buffer, tag, &start_iter, &end_iter);

  g_free (basename);
}