#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>

#include <gtk/gtk.h>

#include "support.h"


GtkWidget* lookup_widget(GtkWidget* widget, const gchar* widget_name) {
  GtkWidget* parent;
	GtkWidget* found_widget;

  for (;;) {
		if (GTK_IS_MENU (widget)) {
			parent = gtk_menu_get_attach_widget (GTK_MENU (widget));
		} else {
			parent = widget->parent;
		}
		if (!parent) {
			parent = (GtkWidget*) g_object_get_data (G_OBJECT (widget), "GladeParentKey");
		}
		if (parent == NULL) {
			break;
		}
		widget = parent;
	}

  found_widget = (GtkWidget*) g_object_get_data (G_OBJECT (widget), widget_name);
  if (!found_widget) {
    g_warning ("Widget not found: %s", widget_name);
	}
  return found_widget;
}


static GList *pixmaps_directories = NULL;

/* Use this function to set the directory containing installed pixmaps. */
void add_pixmap_directory(const gchar* directory) {
  pixmaps_directories = g_list_prepend (pixmaps_directories, g_strdup (directory));
}

/* This is an internally used function to find pixmap files. */
static gchar* find_pixmap_file(const gchar* filename) {
  GList* elem;

  /* We step through each of the pixmaps directory to find it. */
  elem = pixmaps_directories;
  while (elem) {
		gchar *pathname = g_strdup_printf ("%s%s%s", (gchar*)elem->data, G_DIR_SEPARATOR_S, filename);
		if (g_file_test (pathname, G_FILE_TEST_EXISTS)) {
			return pathname;
		}
		g_free (pathname);
		elem = elem->next;
	}
  return NULL;
}


/* This is an internally used function to create pixmaps. */
GtkWidget* create_pixmap(GtkWidget* widget, const gchar* filename) {
  gchar* pathname = NULL;
  GtkWidget* pixmap;

  if (!filename || !filename[0]) {
		return gtk_image_new ();
	}

  pathname = find_pixmap_file (filename);

  if (!pathname) {
		g_warning ("Couldn't find pixmap file: %s", filename);
		return gtk_image_new ();
	}

  pixmap = gtk_image_new_from_file (pathname);
  g_free(pathname);
  return pixmap;
}


/* This is an internally used function to create pixmaps. */
GdkPixbuf* create_pixbuf(const gchar* filename) {
  gchar* pathname = NULL;
  GdkPixbuf* pixbuf;
  GError* error = NULL;

  if (!filename || !filename[0]) {
		return NULL;
	}

  pathname = find_pixmap_file(filename);

  if (!pathname) {
		g_warning ("Couldn't find pixmap file: %s", filename);
		return NULL;
	}

  pixbuf = gdk_pixbuf_new_from_file (pathname, &error);
  if (!pixbuf) {
		fprintf(stderr, "Failed to load pixbuf file: %s: %s\n", pathname, error->message);
		g_error_free(error);
	}
  g_free(pathname);
  return pixbuf;
}


/* This is used to set ATK action descriptions. */
void glade_set_atk_action_description(AtkAction* action, const gchar* action_name, const gchar* description) {
  gint n_actions;
	gint i;

  n_actions = atk_action_get_n_actions (action);
  for (i = 0; i < n_actions; i++) {
		if (!strcmp (atk_action_get_name (action, i), action_name)) {
			atk_action_set_description (action, i, description);
		}
	}
}