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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/display/win/screen_win.h" | 5 #include "ui/display/win/screen_win.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 #include <shellscalingapi.h> | 8 #include <shellscalingapi.h> |
9 | 9 |
10 #include <algorithm> | 10 #include <algorithm> |
11 | 11 |
12 #include "base/bind.h" | 12 #include "base/bind.h" |
13 #include "base/bind_helpers.h" | 13 #include "base/bind_helpers.h" |
14 #include "base/metrics/histogram_macros.h" | 14 #include "base/metrics/histogram_macros.h" |
| 15 #include "base/stl_util.h" |
15 #include "base/win/win_util.h" | 16 #include "base/win/win_util.h" |
16 #include "ui/display/display.h" | 17 #include "ui/display/display.h" |
17 #include "ui/display/display_layout.h" | 18 #include "ui/display/display_layout.h" |
18 #include "ui/display/display_layout_builder.h" | 19 #include "ui/display/display_layout_builder.h" |
19 #include "ui/display/win/display_info.h" | 20 #include "ui/display/win/display_info.h" |
20 #include "ui/display/win/dpi.h" | 21 #include "ui/display/win/dpi.h" |
21 #include "ui/display/win/scaling_util.h" | 22 #include "ui/display/win/scaling_util.h" |
22 #include "ui/display/win/screen_win_display.h" | 23 #include "ui/display/win/screen_win_display.h" |
23 #include "ui/gfx/geometry/point.h" | 24 #include "ui/gfx/geometry/point.h" |
24 #include "ui/gfx/geometry/rect.h" | 25 #include "ui/gfx/geometry/rect.h" |
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583 | 584 |
584 void ScreenWin::RecordDisplayScaleFactors() const { | 585 void ScreenWin::RecordDisplayScaleFactors() const { |
585 std::vector<int> unique_scale_factors; | 586 std::vector<int> unique_scale_factors; |
586 for (const auto& screen_win_display : screen_win_displays_) { | 587 for (const auto& screen_win_display : screen_win_displays_) { |
587 const float scale_factor = | 588 const float scale_factor = |
588 screen_win_display.display().device_scale_factor(); | 589 screen_win_display.display().device_scale_factor(); |
589 // Multiply the reported value by 100 to display it as a percentage. Clamp | 590 // Multiply the reported value by 100 to display it as a percentage. Clamp |
590 // it so that if it's wildly out-of-band we won't send it to the backend. | 591 // it so that if it's wildly out-of-band we won't send it to the backend. |
591 const int reported_scale = std::min( | 592 const int reported_scale = std::min( |
592 std::max(base::checked_cast<int>(scale_factor * 100), 0), 1000); | 593 std::max(base::checked_cast<int>(scale_factor * 100), 0), 1000); |
593 if (std::find(unique_scale_factors.begin(), unique_scale_factors.end(), | 594 if (!base::ContainsValue(unique_scale_factors, reported_scale)) { |
594 reported_scale) == unique_scale_factors.end()) { | |
595 unique_scale_factors.push_back(reported_scale); | 595 unique_scale_factors.push_back(reported_scale); |
596 UMA_HISTOGRAM_SPARSE_SLOWLY("UI.DeviceScale", reported_scale); | 596 UMA_HISTOGRAM_SPARSE_SLOWLY("UI.DeviceScale", reported_scale); |
597 } | 597 } |
598 } | 598 } |
599 } | 599 } |
600 | 600 |
601 } // namespace win | 601 } // namespace win |
602 } // namespace display | 602 } // namespace display |
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