Index: chrome/browser/ui/libgtk2ui/gtk2_ui.cc |
diff --git a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc |
index 5405a718ef1f540515ff20cf0e15580cd44a3d20..fc226578da52d24b509fd11622c3ca36dd10885c 100644 |
--- a/chrome/browser/ui/libgtk2ui/gtk2_ui.cc |
+++ b/chrome/browser/ui/libgtk2ui/gtk2_ui.cc |
@@ -381,7 +381,7 @@ gfx::FontRenderParams GetGtkFontRenderParams() { |
// Queries GTK for its font DPI setting and returns the number of pixels in a |
// point. |
-double GetPixelsInPoint() { |
+double GetPixelsInPoint(float device_scale_factor) { |
GtkSettings* gtk_settings = gtk_settings_get_default(); |
CHECK(gtk_settings); |
gint gtk_dpi = -1; |
@@ -390,6 +390,10 @@ double GetPixelsInPoint() { |
// GTK multiplies the DPI by 1024 before storing it. |
double dpi = (gtk_dpi > 0) ? gtk_dpi / 1024.0 : 96.0; |
+ // Take device_scale_factor into account — if Chrome already scales the |
+ // entire UI up by 2x, we should not also scale up. |
+ dpi /= device_scale_factor; |
+ |
// There are 72 points in an inch. |
return dpi / 72.0; |
} |
@@ -413,7 +417,8 @@ views::LinuxUI::NonClientMiddleClickAction GetDefaultMiddleClickAction() { |
Gtk2UI::Gtk2UI() |
: default_font_size_pixels_(0), |
default_font_style_(gfx::Font::NORMAL), |
- middle_click_action_(GetDefaultMiddleClickAction()) { |
+ middle_click_action_(GetDefaultMiddleClickAction()), |
+ device_scale_factor_(1.0) { |
GtkInitFromCommandLine(*base::CommandLine::ForCurrentProcess()); |
} |
@@ -1384,7 +1389,7 @@ void Gtk2UI::UpdateDefaultFont(const PangoFontDescription* desc) { |
const double size_points = pango_font_description_get_size(desc) / |
static_cast<double>(PANGO_SCALE); |
default_font_size_pixels_ = static_cast<int>( |
- GetPixelsInPoint() * size_points + 0.5); |
+ GetPixelsInPoint(device_scale_factor_) * size_points + 0.5); |
query.point_size = static_cast<int>(size_points); |
} |
@@ -1407,6 +1412,12 @@ void Gtk2UI::OnStyleSet(GtkWidget* widget, GtkStyle* previous_style) { |
NativeThemeGtk2::instance()->NotifyObservers(); |
} |
+void Gtk2UI::UpdateDeviceScaleFactor(float device_scale_factor) { |
+ device_scale_factor_ = device_scale_factor; |
+ GtkStyle* label_style = gtk_rc_get_style(fake_label_.get()); |
+ UpdateDefaultFont(label_style->font_desc); |
+} |
+ |
} // namespace libgtk2ui |
views::LinuxUI* BuildGtk2UI() { |