username_view.h revision dc0f95d653279beabeb9817299e2902918ba123e 
1// Copyright (c) 2010 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 CHROME_BROWSER_CHROMEOS_LOGIN_USERNAME_VIEW_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_USERNAME_VIEW_H_
7#pragma once
8
9#include <string>
10
11#include "views/controls/label.h"
12#include "third_party/skia/include/core/SkBitmap.h"
13
14// Forward declaration.
15namespace gfx {
16  class Rect;
17}
18
19namespace chromeos {
20// Label with customized paddings and long text fade out.
21class UsernameView : public views::Label {
22 public:
23  virtual ~UsernameView() {}
24
25  // Returns the shaped username view to be used on the login screen. If
26  // |user_small_shape| is true, then one pixel margins are used. This is done
27  // to match the shape of the scaled frame of the user image. The caller gets
28  // the ownership.
29  // Empty |username| stands for guest user.
30  static UsernameView* CreateShapedUsernameView(const std::wstring& username,
31                                                bool use_small_shape);
32
33 protected:
34  // Constructs username view for the given |username|. Consider using
35  // |CreateShapedUsernameView| to match the login page style.
36  // Empty |username| stands for guest user.
37  UsernameView(const std::wstring& username, bool use_small_shape);
38
39  // Overriden from views::Label.
40  virtual void OnPaint(gfx::Canvas* canvas);
41
42  // True indicates that this UsernameView is used for a user pod not
43  // currently selected.
44  bool use_small_shape() const { return use_small_shape_; }
45
46 private:
47  // Overriden from View.
48  virtual gfx::NativeCursor GetCursorForPoint(
49      ui::EventType event_type,
50      const gfx::Point& p);
51  virtual void OnLocaleChanged();
52
53  // Paints username to the bitmap with the bounds given.
54  void PaintUsername(const gfx::Rect& bounds);
55
56  // Holds painted username.
57  scoped_ptr<SkBitmap> text_image_;
58
59  // Holds margins width (depends on the height).
60  int margin_width_;
61
62  // Whether the shape for the smaller view should be used.
63  bool use_small_shape_;
64
65  // Whether it is a guest.
66  bool is_guest_;
67
68  DISALLOW_COPY_AND_ASSIGN(UsernameView);
69};
70
71}  // namespace chromeos
72
73#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERNAME_VIEW_H_
74