init

2021-02-05 01:39:51 +00:00
parent 666067a36c
commit 45a9eb9cd2
73 changed files with 2669 additions and 0 deletions
@@ -0,0 +1,39 @@
+using System.Windows;
+using System.Windows.Media;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class VisualExtensions
+    {
+        private static Matrix GetDpi(this Visual visual)
+        {
+            var source = PresentationSource.FromVisual(visual);
+            if (source?.CompositionTarget != null) return (Matrix)source?.CompositionTarget.TransformToDevice;
+
+            return default;
+        }
+
+        public static double DpiY(this Visual visual)
+        {
+            return GetDpi(visual).M22;
+        }
+
+        public static double DpiX(this Visual visual)
+        {
+            return GetDpi(visual).M11;
+        }
+
+        public static bool TryGetTransformToDevice(this Visual visual, out Matrix value)
+        {
+            var presentationSource = PresentationSource.FromVisual(visual);
+            if (presentationSource != null)
+            {
+                value = presentationSource.CompositionTarget.TransformToDevice;
+                return true;
+            }
+
+            value = default;
+            return false;
+        }
+    }
+}