70 lines
2.1 KiB
C#
70 lines
2.1 KiB
C#
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using System;
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using System.Windows;
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using System.Windows.Media;
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namespace WPFDark.Internals
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{
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internal static class FrameworkElementExtensions
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{
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internal const double BorderWidth = 1.0;
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internal const double BorderHalfWidth = BorderWidth * 0.5;
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internal static double CalcCompositeRenderScale(this FrameworkElement self)
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{
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var scale = 1.0;
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var p = self as DependencyObject;
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do
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{
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if (p is FrameworkElement pp)
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{
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switch (pp.RenderTransform)
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{
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case TransformGroup tg:
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{
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foreach (var c in tg.Children)
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{
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if (!(c is ScaleTransform sc))
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continue;
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scale *= sc.ScaleX;
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}
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break;
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}
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case ScaleTransform st:
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scale *= st.ScaleX;
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break;
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}
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}
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p = VisualTreeHelper.GetParent(p);
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} while (p != null);
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return scale;
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}
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internal static void SetMouseClipping(this FrameworkElement self)
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{
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var p0 = new Point(0, 0);
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var p1 = new Point(self.ActualWidth + 1, self.ActualHeight + 1);
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var dp0 = self.PointToScreen(p0);
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var dp1 = self.PointToScreen(p1);
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var cr = new Win32Helper.RECT((int) dp0.X, (int) dp0.Y, (int) dp1.X, (int) dp1.Y);
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Win32Helper.ClipCursor(ref cr);
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}
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internal static void ResetMouseClipping(this FrameworkElement self)
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{
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Win32Helper.ClipCursor(IntPtr.Zero);
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}
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internal static bool IsInActualSize(this FrameworkElement self, Point pos)
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{
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return pos.X >= 0 && pos.X <= self.ActualWidth &&
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pos.Y >= 0 && pos.Y <= self.ActualHeight;
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}
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}
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}
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