1 // Copyright (c) 2011 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 "chrome/browser/chromeos/login/oobe_progress_bar.h"
6
7 #include "base/logging.h"
8 #include "base/utf_string_conversions.h"
9 #include "grit/theme_resources.h"
10 #include "third_party/skia/include/core/SkBitmap.h"
11 #include "ui/base/l10n/l10n_util.h"
12 #include "ui/base/resource/resource_bundle.h"
13 #include "ui/gfx/canvas_skia.h"
14
15 namespace chromeos {
16
17 // static
18 SkBitmap* OobeProgressBar::dot_current_ = NULL;
19 SkBitmap* OobeProgressBar::dot_empty_ = NULL;
20 SkBitmap* OobeProgressBar::dot_filled_ = NULL;
21 SkBitmap* OobeProgressBar::line_ = NULL;
22 SkBitmap* OobeProgressBar::line_left_ = NULL;
23 SkBitmap* OobeProgressBar::line_right_ = NULL;
24
25 static const SkColor kCurrentTextColor = SkColorSetRGB(255, 255, 255);
26 static const SkColor kEmptyTextColor = SkColorSetRGB(112, 115, 118);
27 static const SkColor kFilledTextColor = SkColorSetRGB(112, 115, 118);
28 static const int kTextPadding = 5;
29
OobeProgressBar(const std::vector<int> & steps)30 OobeProgressBar::OobeProgressBar(const std::vector<int>& steps)
31 : steps_(steps), progress_(0) {
32 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
33 font_ = rb.GetFont(ResourceBundle::BaseFont);
34 InitClass();
35 }
36
37 // static
InitClass()38 void OobeProgressBar::InitClass() {
39 static bool initialized = false;
40 if (!initialized) {
41 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
42
43 // Load images.
44 dot_current_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_DOT_CURRENT);
45 dot_empty_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_DOT_EMPTY);
46 dot_filled_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_DOT_FILLED);
47 line_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_LINE);
48 line_left_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_LINE_LEFT);
49 line_right_ = rb.GetBitmapNamed(IDR_OOBE_PROGRESS_LINE_RIGHT);
50
51 initialized = true;
52 }
53 }
54
OnPaint(gfx::Canvas * canvas)55 void OobeProgressBar::OnPaint(gfx::Canvas* canvas) {
56 gfx::Rect bounds = GetContentsBounds();
57
58 int x = bounds.x();
59 int y = bounds.y();
60
61 double step_width = static_cast<double>(bounds.width()) / steps_.size();
62
63 for (size_t i = 0; i < steps_.size(); ++i) {
64 SkBitmap* dot;
65 SkColor color;
66 SkBitmap* line_before = line_;
67 SkBitmap* line_after = line_;
68 if (i < progress_) {
69 dot = dot_filled_;
70 color = kFilledTextColor;
71 } else if (i == progress_) {
72 dot = dot_current_;
73 color = kCurrentTextColor;
74 line_before = line_left_;
75 line_after = line_right_;
76 } else {
77 dot = dot_empty_;
78 color = kEmptyTextColor;
79 }
80
81 // x coordinate for next step.
82 int next_x = static_cast<int>((i + 1) * step_width);
83
84 // Offset of line origin from dot origin.
85 int line_offset_y = (dot->height() - line_->height()) / 2;
86
87 // Current x for painting.
88 int ix = x;
89
90 int line_width = ((next_x - x) -
91 (line_before->width() + dot->width() + line_after->width())) / 2;
92 if (i > 0) {
93 canvas->TileImageInt(*line_, ix, y + line_offset_y,
94 line_width, line_->height());
95 }
96 ix += line_width;
97 if (i > 0) {
98 canvas->DrawBitmapInt(*line_before, ix, y + line_offset_y);
99 }
100 ix += line_before->width();
101
102 canvas->DrawBitmapInt(*dot, ix, y);
103 ix += dot->width();
104
105 if (i != steps_.size() - 1)
106 canvas->DrawBitmapInt(*line_after, ix, y + line_offset_y);
107 ix += line_after->width();
108
109 if (i != steps_.size() - 1) {
110 canvas->TileImageInt(*line_, ix, y + line_offset_y,
111 next_x - ix, line_->height());
112 }
113
114 string16 str = l10n_util::GetStringUTF16(steps_[i]);
115 canvas->DrawStringInt(str, font_, color,
116 x + kTextPadding, y + dot->height() + kTextPadding,
117 (next_x - x - 2 * kTextPadding),
118 (bounds.height() - dot->height() - 2 * kTextPadding),
119 gfx::Canvas::MULTI_LINE | gfx::Canvas::TEXT_ALIGN_CENTER |
120 gfx::Canvas::TEXT_VALIGN_TOP);
121
122 x = next_x;
123 }
124 }
125
OnLocaleChanged()126 void OobeProgressBar::OnLocaleChanged() {
127 font_ = ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont);
128 SchedulePaint();
129 }
130
SetStep(int step)131 void OobeProgressBar::SetStep(int step) {
132 for (size_t i = 0; i < steps_.size(); ++i) {
133 if (steps_[i] == step) {
134 progress_ = i;
135 SchedulePaint();
136 return;
137 }
138 }
139 NOTREACHED();
140 }
141
142 } // namespace chromeos
143