ManipulationDelta.Translation Properti
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mendapatkan atau mengatur gerakan linier manipulasi.
public:
property System::Windows::Vector Translation { System::Windows::Vector get(); };
public System.Windows.Vector Translation { get; }
member this.Translation : System.Windows.Vector
Public ReadOnly Property Translation As Vector
Nilai Properti
Gerakan linier manipulasi dalam unit independen perangkat (1/96 inci per unit).
Contoh
Contoh berikut menunjukkan penanganan aktivitas untuk peristiwa tersebut ManipulationDelta . Contoh Translationmenerapkan properti , Scale, dan Rotation untuk memindahkan, mengubah ukuran, dan memutar Rectangle. Contoh ini adalah bagian dari contoh yang lebih besar di Walkthrough: Membuat Aplikasi Sentuhan Pertama Anda.
void Window_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
{
// Get the Rectangle and its RenderTransform matrix.
Rectangle rectToMove = e.OriginalSource as Rectangle;
Matrix rectsMatrix = ((MatrixTransform)rectToMove.RenderTransform).Matrix;
// Rotate the Rectangle.
rectsMatrix.RotateAt(e.DeltaManipulation.Rotation,
e.ManipulationOrigin.X,
e.ManipulationOrigin.Y);
// Resize the Rectangle. Keep it square
// so use only the X value of Scale.
rectsMatrix.ScaleAt(e.DeltaManipulation.Scale.X,
e.DeltaManipulation.Scale.X,
e.ManipulationOrigin.X,
e.ManipulationOrigin.Y);
// Move the Rectangle.
rectsMatrix.Translate(e.DeltaManipulation.Translation.X,
e.DeltaManipulation.Translation.Y);
// Apply the changes to the Rectangle.
rectToMove.RenderTransform = new MatrixTransform(rectsMatrix);
Rect containingRect =
new Rect(((FrameworkElement)e.ManipulationContainer).RenderSize);
Rect shapeBounds =
rectToMove.RenderTransform.TransformBounds(
new Rect(rectToMove.RenderSize));
// Check if the rectangle is completely in the window.
// If it is not and intertia is occuring, stop the manipulation.
if (e.IsInertial && !containingRect.Contains(shapeBounds))
{
e.Complete();
}
e.Handled = true;
}
Private Sub Window_ManipulationDelta(ByVal sender As Object, ByVal e As ManipulationDeltaEventArgs)
' Get the Rectangle and its RenderTransform matrix.
Dim rectToMove As Rectangle = e.OriginalSource
Dim rectTransform As MatrixTransform = rectToMove.RenderTransform
Dim rectsMatrix As Matrix = rectTransform.Matrix
' Rotate the shape
rectsMatrix.RotateAt(e.DeltaManipulation.Rotation,
e.ManipulationOrigin.X,
e.ManipulationOrigin.Y)
' Resize the Rectangle. Keep it square
' so use only the X value of Scale.
rectsMatrix.ScaleAt(e.DeltaManipulation.Scale.X,
e.DeltaManipulation.Scale.X,
e.ManipulationOrigin.X,
e.ManipulationOrigin.Y)
'move the center
rectsMatrix.Translate(e.DeltaManipulation.Translation.X,
e.DeltaManipulation.Translation.Y)
' Apply the changes to the Rectangle.
rectTransform = New MatrixTransform(rectsMatrix)
rectToMove.RenderTransform = rectTransform
Dim container As FrameworkElement = e.ManipulationContainer
Dim containingRect As New Rect(container.RenderSize)
Dim shapeBounds As Rect = rectTransform.TransformBounds(
New Rect(rectToMove.RenderSize))
' Check if the rectangle is completely in the window.
' If it is not and intertia is occuring, stop the manipulation.
If e.IsInertial AndAlso Not containingRect.Contains(shapeBounds) Then
e.Complete()
End If
e.Handled = True
End Sub
Keterangan
Properti Translation melaporkan cara manipulasi ditafsirkan sebagai bergerak secara horizontal dan vertikal di layar.
Berlaku untuk
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