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

static GList *pixmaps_directories = NULL;


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;
}


/* 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);
		}
	}
}