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Side by Side Diff: ui/display/win/screen_win.cc

Issue 2186163002: Create ScreenWin::GetSystemMetricsInDIP and Correctly Deprecate display::win::GetSystemMetricsInDIP (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 4 months ago
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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>
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310 int system_metrics_result = g_screen_win_instance->GetSystemMetrics(metric); 310 int system_metrics_result = g_screen_win_instance->GetSystemMetrics(metric);
311 311
312 float metrics_relative_scale_factor = hwnd 312 float metrics_relative_scale_factor = hwnd
313 ? GetScaleFactorForHWND(hwnd) / primary_display.device_scale_factor() 313 ? GetScaleFactorForHWND(hwnd) / primary_display.device_scale_factor()
314 : 1.0f; 314 : 1.0f;
315 return static_cast<int>(std::round( 315 return static_cast<int>(std::round(
316 system_metrics_result * metrics_relative_scale_factor)); 316 system_metrics_result * metrics_relative_scale_factor));
317 } 317 }
318 318
319 // static 319 // static
320 int ScreenWin::GetSystemMetricsInDIP(int metric) {
321 if (!g_screen_win_instance)
322 return ::GetSystemMetrics(metric);
323
324 Display primary_display(g_screen_win_instance->GetPrimaryDisplay());
325 int system_metrics_result = g_screen_win_instance->GetSystemMetrics(metric);
326 return static_cast<int>(std::round(
327 system_metrics_result / primary_display.device_scale_factor()));
328 }
329
330 // static
320 float ScreenWin::GetScaleFactorForHWND(HWND hwnd) { 331 float ScreenWin::GetScaleFactorForHWND(HWND hwnd) {
321 if (!g_screen_win_instance) 332 if (!g_screen_win_instance)
322 return ScreenWinDisplay().display().device_scale_factor(); 333 return ScreenWinDisplay().display().device_scale_factor();
323 334
324 DCHECK(hwnd); 335 DCHECK(hwnd);
325 HWND rootHwnd = g_screen_win_instance->GetRootWindow(hwnd); 336 HWND rootHwnd = g_screen_win_instance->GetRootWindow(hwnd);
326 ScreenWinDisplay screen_win_display = 337 ScreenWinDisplay screen_win_display =
327 g_screen_win_instance->GetScreenWinDisplayNearestHWND(rootHwnd); 338 g_screen_win_instance->GetScreenWinDisplayNearestHWND(rootHwnd);
328 return screen_win_display.display().device_scale_factor(); 339 return screen_win_display.display().device_scale_factor();
329 } 340 }
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565 if (std::find(unique_scale_factors.begin(), unique_scale_factors.end(), 576 if (std::find(unique_scale_factors.begin(), unique_scale_factors.end(),
566 reported_scale) == unique_scale_factors.end()) { 577 reported_scale) == unique_scale_factors.end()) {
567 unique_scale_factors.push_back(reported_scale); 578 unique_scale_factors.push_back(reported_scale);
568 UMA_HISTOGRAM_SPARSE_SLOWLY("UI.DeviceScale", reported_scale); 579 UMA_HISTOGRAM_SPARSE_SLOWLY("UI.DeviceScale", reported_scale);
569 } 580 }
570 } 581 }
571 } 582 }
572 583
573 } // namespace win 584 } // namespace win
574 } // namespace display 585 } // namespace display
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