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 #include "ash/system/user/rounded_image_view.h"
6 #include "skia/ext/image_operations.h"
7 #include "third_party/skia/include/core/SkPaint.h"
8 #include "third_party/skia/include/core/SkPath.h"
9 #include "ui/gfx/canvas.h"
10 #include "ui/gfx/image/image_skia_operations.h"
11 #include "ui/gfx/skia_util.h"
12
13 namespace ash {
14 namespace tray {
15
RoundedImageView(int corner_radius,bool active_user)16 RoundedImageView::RoundedImageView(int corner_radius, bool active_user)
17 : active_user_(active_user) {
18 for (int i = 0; i < 4; ++i)
19 corner_radius_[i] = corner_radius;
20 }
21
~RoundedImageView()22 RoundedImageView::~RoundedImageView() {}
23
SetImage(const gfx::ImageSkia & img,const gfx::Size & size)24 void RoundedImageView::SetImage(const gfx::ImageSkia& img,
25 const gfx::Size& size) {
26 image_ = img;
27 image_size_ = size;
28
29 // Try to get the best image quality for the avatar.
30 resized_ = gfx::ImageSkiaOperations::CreateResizedImage(
31 image_, skia::ImageOperations::RESIZE_BEST, size);
32 if (GetWidget() && visible()) {
33 PreferredSizeChanged();
34 SchedulePaint();
35 }
36 }
37
SetCornerRadii(int top_left,int top_right,int bottom_right,int bottom_left)38 void RoundedImageView::SetCornerRadii(int top_left,
39 int top_right,
40 int bottom_right,
41 int bottom_left) {
42 corner_radius_[0] = top_left;
43 corner_radius_[1] = top_right;
44 corner_radius_[2] = bottom_right;
45 corner_radius_[3] = bottom_left;
46 }
47
GetPreferredSize() const48 gfx::Size RoundedImageView::GetPreferredSize() const {
49 return gfx::Size(image_size_.width() + GetInsets().width(),
50 image_size_.height() + GetInsets().height());
51 }
52
OnPaint(gfx::Canvas * canvas)53 void RoundedImageView::OnPaint(gfx::Canvas* canvas) {
54 View::OnPaint(canvas);
55 gfx::Rect image_bounds(size());
56 image_bounds.ClampToCenteredSize(GetPreferredSize());
57 image_bounds.Inset(GetInsets());
58 const SkScalar kRadius[8] = {
59 SkIntToScalar(corner_radius_[0]),
60 SkIntToScalar(corner_radius_[0]),
61 SkIntToScalar(corner_radius_[1]),
62 SkIntToScalar(corner_radius_[1]),
63 SkIntToScalar(corner_radius_[2]),
64 SkIntToScalar(corner_radius_[2]),
65 SkIntToScalar(corner_radius_[3]),
66 SkIntToScalar(corner_radius_[3])
67 };
68 SkPath path;
69 path.addRoundRect(gfx::RectToSkRect(image_bounds), kRadius);
70 SkPaint paint;
71 paint.setAntiAlias(true);
72 paint.setXfermodeMode(active_user_ ? SkXfermode::kSrcOver_Mode
73 : SkXfermode::kLuminosity_Mode);
74 canvas->DrawImageInPath(
75 resized_, image_bounds.x(), image_bounds.y(), path, paint);
76 }
77
78 } // namespace tray
79 } // namespace ash
80