1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_BASE_NINE_IMAGE_PAINTER_FACTORY_H_
6#define UI_BASE_NINE_IMAGE_PAINTER_FACTORY_H_
7
8#include "base/memory/scoped_ptr.h"
9#include "ui/base/ui_base_export.h"
10
11// A macro to define arrays of IDR constants used with CreateImageGridPainter.
12#define IMAGE_GRID(x) { x ## _TOP_LEFT,    x ## _TOP,    x ## _TOP_RIGHT, \
13                        x ## _LEFT,        x ## _CENTER, x ## _RIGHT, \
14                        x ## _BOTTOM_LEFT, x ## _BOTTOM, x ## _BOTTOM_RIGHT, }
15
16// Defines a empty image for used in macro for creating image grid for a ring of
17// eight images.
18#define EMPTY_IMAGE 0
19
20// A macro to define arrays of IDR constants used with CreateImageGridPainter
21// where only a ring of eight images is provided and center image is empty.
22#define IMAGE_GRID_NO_CENTER(x) { x ## _TOP_LEFT, x ## _TOP, x ## _TOP_RIGHT, \
23      x ## _LEFT, EMPTY_IMAGE, x ## _RIGHT, \
24      x ## _BOTTOM_LEFT, x ## _BOTTOM, x ## _BOTTOM_RIGHT, }
25
26
27namespace gfx {
28class NineImagePainter;
29}
30
31namespace ui {
32
33// Creates a NineImagePainter from an array of image ids. It's expected the
34// array came from the IMAGE_GRID macro.
35UI_BASE_EXPORT scoped_ptr<gfx::NineImagePainter> CreateNineImagePainter(
36    const int image_ids[]);
37
38}  // namespace ui
39
40#endif  // UI_BASE_NINE_IMAGE_PAINTER_FACTORY_H_
41