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path: root/Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs
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Diffstat (limited to 'Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs')
-rw-r--r--Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs110
1 files changed, 110 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs b/Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs
new file mode 100644
index 00000000..f3d6d100
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+++ b/Xamarin.Forms.Platform.WinRT/WindowsDeviceInfo.cs
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+´╗┐using System;
+using Windows.Foundation;
+using Windows.Graphics.Display;
+using Windows.UI.Xaml;
+
+#if WINDOWS_UWP
+
+namespace Xamarin.Forms.Platform.UWP
+#else
+
+namespace Xamarin.Forms.Platform.WinRT
+#endif
+{
+ internal class WindowsDeviceInfo : DeviceInfo
+ {
+ DisplayInformation _information;
+ bool _isDisposed;
+
+ public WindowsDeviceInfo()
+ {
+ // TODO: Screen size and DPI can change at any time
+ _information = DisplayInformation.GetForCurrentView();
+ _information.OrientationChanged += OnOrientationChanged;
+ CurrentOrientation = GetDeviceOrientation(_information.CurrentOrientation);
+ }
+
+ public override Size PixelScreenSize
+ {
+ get
+ {
+ double scaling = ScalingFactor;
+ Size scaled = ScaledScreenSize;
+ double width = Math.Round(scaled.Width * scaling);
+ double height = Math.Round(scaled.Height * scaling);
+
+ return new Size(width, height);
+ }
+ }
+
+ public override Size ScaledScreenSize
+ {
+ get
+ {
+ Rect windowSize = Window.Current.Bounds;
+ return new Size(windowSize.Width, windowSize.Height);
+ }
+ }
+
+ public override double ScalingFactor
+ {
+ get
+ {
+ ResolutionScale scale = _information.ResolutionScale;
+ switch (scale)
+ {
+ case ResolutionScale.Scale120Percent:
+ return 1.2;
+ case ResolutionScale.Scale140Percent:
+ return 1.4;
+ case ResolutionScale.Scale150Percent:
+ return 1.5;
+ case ResolutionScale.Scale160Percent:
+ return 1.6;
+ case ResolutionScale.Scale180Percent:
+ return 1.8;
+ case ResolutionScale.Scale225Percent:
+ return 2.25;
+ case ResolutionScale.Scale100Percent:
+ default:
+ return 1;
+ }
+ }
+ }
+
+ protected override void Dispose(bool disposing)
+ {
+ if (_isDisposed)
+ return;
+
+ _isDisposed = true;
+ _information.OrientationChanged -= OnOrientationChanged;
+ _information = null;
+
+ base.Dispose(disposing);
+ }
+
+ static DeviceOrientation GetDeviceOrientation(DisplayOrientations orientations)
+ {
+ switch (orientations)
+ {
+ case DisplayOrientations.Landscape:
+ case DisplayOrientations.LandscapeFlipped:
+ return DeviceOrientation.Landscape;
+
+ case DisplayOrientations.Portrait:
+ case DisplayOrientations.PortraitFlipped:
+ return DeviceOrientation.Portrait;
+
+ default:
+ case DisplayOrientations.None:
+ return DeviceOrientation.Other;
+ }
+ }
+
+ void OnOrientationChanged(DisplayInformation sender, object args)
+ {
+ CurrentOrientation = GetDeviceOrientation(sender.CurrentOrientation);
+ }
+ }
+} \ No newline at end of file