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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 "chrome/browser/ui/libgtkui/gtk_ui.h" | 5 #include "chrome/browser/ui/libgtkui/gtk_ui.h" |
6 | 6 |
7 #include <X11/Xcursor/Xcursor.h> | 7 #include <X11/Xcursor/Xcursor.h> |
8 #include <dlfcn.h> | 8 #include <dlfcn.h> |
9 #include <math.h> | 9 #include <math.h> |
10 #include <pango/pango.h> | 10 #include <pango/pango.h> |
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308 LOG(WARNING) << "Unexpected gtk-xft-rgba \"" << rgba << "\""; | 308 LOG(WARNING) << "Unexpected gtk-xft-rgba \"" << rgba << "\""; |
309 params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE; | 309 params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE; |
310 } | 310 } |
311 | 311 |
312 g_free(hint_style); | 312 g_free(hint_style); |
313 g_free(rgba); | 313 g_free(rgba); |
314 | 314 |
315 return params; | 315 return params; |
316 } | 316 } |
317 | 317 |
318 double GetDpi() { | 318 float GetGdkWindowScalingFactor() { |
319 if (display::Display::HasForceDeviceScaleFactor()) | 319 GValue scale = G_VALUE_INIT; |
320 return display::Display::GetForcedDeviceScaleFactor() * kDefaultDPI; | 320 g_value_init(&scale, G_TYPE_INT); |
| 321 if (!gdk_screen_get_setting(gdk_screen_get_default(), |
| 322 "gdk-window-scaling-factor", &scale)) |
| 323 return -1; |
321 | 324 |
| 325 return g_value_get_int(&scale); |
| 326 } |
| 327 |
| 328 float GetScaleFromXftDPI() { |
322 GtkSettings* gtk_settings = gtk_settings_get_default(); | 329 GtkSettings* gtk_settings = gtk_settings_get_default(); |
323 CHECK(gtk_settings); | 330 CHECK(gtk_settings); |
324 gint gtk_dpi = -1; | 331 gint gtk_dpi = -1; |
325 g_object_get(gtk_settings, "gtk-xft-dpi", >k_dpi, nullptr); | 332 g_object_get(gtk_settings, "gtk-xft-dpi", >k_dpi, nullptr); |
326 | |
327 // GTK multiplies the DPI by 1024 before storing it. | 333 // GTK multiplies the DPI by 1024 before storing it. |
328 return (gtk_dpi > 0) ? gtk_dpi / 1024.0 : kDefaultDPI; | 334 return (gtk_dpi > 0) ? gtk_dpi / (1024 * kDefaultDPI) : -1; |
329 } | 335 } |
330 | 336 |
331 float GetRawDeviceScaleFactor() { | 337 float GetRawDeviceScaleFactor() { |
332 if (display::Display::HasForceDeviceScaleFactor()) | 338 if (display::Display::HasForceDeviceScaleFactor()) |
333 return display::Display::GetForcedDeviceScaleFactor(); | 339 return display::Display::GetForcedDeviceScaleFactor(); |
334 return GetDpi() / kDefaultDPI; | 340 |
| 341 float scale = GetGdkWindowScalingFactor(); |
| 342 if (scale > 0) |
| 343 return scale; |
| 344 |
| 345 scale = GetScaleFromXftDPI(); |
| 346 if (scale > 0) |
| 347 return scale; |
| 348 |
| 349 return 1; |
335 } | 350 } |
336 | 351 |
337 views::LinuxUI::NonClientMiddleClickAction GetDefaultMiddleClickAction() { | 352 views::LinuxUI::NonClientMiddleClickAction GetDefaultMiddleClickAction() { |
338 std::unique_ptr<base::Environment> env(base::Environment::Create()); | 353 std::unique_ptr<base::Environment> env(base::Environment::Create()); |
339 switch (base::nix::GetDesktopEnvironment(env.get())) { | 354 switch (base::nix::GetDesktopEnvironment(env.get())) { |
340 case base::nix::DESKTOP_ENVIRONMENT_KDE4: | 355 case base::nix::DESKTOP_ENVIRONMENT_KDE4: |
341 case base::nix::DESKTOP_ENVIRONMENT_KDE5: | 356 case base::nix::DESKTOP_ENVIRONMENT_KDE5: |
342 // Starting with KDE 4.4, windows' titlebars can be dragged with the | 357 // Starting with KDE 4.4, windows' titlebars can be dragged with the |
343 // middle mouse button to create tab groups. We don't support that in | 358 // middle mouse button to create tab groups. We don't support that in |
344 // Chrome, but at least avoid lowering windows in response to middle | 359 // Chrome, but at least avoid lowering windows in response to middle |
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1058 | 1073 |
1059 float GtkUi::GetDeviceScaleFactor() const { | 1074 float GtkUi::GetDeviceScaleFactor() const { |
1060 return device_scale_factor_; | 1075 return device_scale_factor_; |
1061 } | 1076 } |
1062 | 1077 |
1063 } // namespace libgtkui | 1078 } // namespace libgtkui |
1064 | 1079 |
1065 views::LinuxUI* BuildGtkUi() { | 1080 views::LinuxUI* BuildGtkUi() { |
1066 return new libgtkui::GtkUi; | 1081 return new libgtkui::GtkUi; |
1067 } | 1082 } |
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