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| author | mukai@chromium.org <mukai@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-04-10 05:07:34 +0000 |
|---|---|---|
| committer | mukai@chromium.org <mukai@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-04-10 05:07:34 +0000 |
| commit | 0e19df412d6aca25d6771348b83c4e85b5d0111f (patch) | |
| tree | 019e52587c21fa8398445f9f3905afcd8f93aca7 /ash | |
| parent | 01c4071cf8aa3a1aeafe472c1fe441d684ffbd64 (diff) | |
| download | chromium_src-0e19df412d6aca25d6771348b83c4e85b5d0111f.zip chromium_src-0e19df412d6aca25d6771348b83c4e85b5d0111f.tar.gz chromium_src-0e19df412d6aca25d6771348b83c4e85b5d0111f.tar.bz2 | |
Modifies the threshold for hidpi displays.
It is really tough to use some 4K monitor from ChromeOS because
the resolution is too high in comparison with the physical size.
Better to use 2X mode in such case.
BUG=348279
R=oshima@chromium.org
TEST=manually
Review URL: https://codereview.chromium.org/227593011
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262922 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'ash')
| -rw-r--r-- | ash/display/display_change_observer_chromeos.cc | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/ash/display/display_change_observer_chromeos.cc b/ash/display/display_change_observer_chromeos.cc index cfc2301..7105477 100644 --- a/ash/display/display_change_observer_chromeos.cc +++ b/ash/display/display_change_observer_chromeos.cc @@ -30,13 +30,6 @@ using ui::DisplayConfigurator; namespace { -// The DPI threshold to detect high density screen. -// Higher DPI than this will use device_scale_factor=2. -const unsigned int kHighDensityDPIThreshold = 170; - -// 1 inch in mm. -const float kInchInMm = 25.4f; - // Display mode list is sorted by (in descending priority): // * the area in pixels. // * refresh rate. @@ -133,12 +126,8 @@ void DisplayChangeObserver::OnDisplayModeChanged( if (!mode_info) continue; - float device_scale_factor = 1.0f; - if (!ui::IsDisplaySizeBlackListed(state.display->physical_size()) && - (kInchInMm * mode_info->size().width() / - state.display->physical_size().width()) > kHighDensityDPIThreshold) { - device_scale_factor = 2.0f; - } + float device_scale_factor = ui::GetScaleFactor( + state.display->physical_size(), mode_info->size()); gfx::Rect display_bounds(state.display->origin(), mode_info->size()); std::vector<DisplayMode> display_modes = GetDisplayModeList(state); |