Stroke.DrawCore(DrawingContext, DrawingAttributes) Yöntem

Tanım

Ad Alanı:

System.Windows.Ink

Bütünleştirilmiş Kod:

PresentationCore.dll

Stroke belirtilen öğesini belirtilen DrawingContext kullanarak DrawingAttributesüzerinde işler.

protected:
 virtual void DrawCore(System::Windows::Media::DrawingContext ^ drawingContext, System::Windows::Ink::DrawingAttributes ^ drawingAttributes);

protected virtual void DrawCore (System.Windows.Media.DrawingContext drawingContext, System.Windows.Ink.DrawingAttributes drawingAttributes);

abstract member DrawCore : System.Windows.Media.DrawingContext * System.Windows.Ink.DrawingAttributes -> unit
override this.DrawCore : System.Windows.Media.DrawingContext * System.Windows.Ink.DrawingAttributes -> unit

Protected Overridable Sub DrawCore (drawingContext As DrawingContext, drawingAttributes As DrawingAttributes)

Parametreler

drawingContext

DrawingContext

Konturun DrawingContext üzerinde işlendiği nesne.

drawingAttributes

DrawingAttributes

Çizilen DrawingAttributes vuruşun özniteliklerini tanımlayan nesne.

Örnekler

Aşağıdaki örnekte, bir öğesinin her StylusPoint birinde daire çizme gösterilmektedir Stroke. FitToCurve özelliği olarak trueGetBezierStylusPoints ayarlanırsa ekran kalemi noktalarını almak için kullanılır. Aksi takdirde özelliği StylusPoints kullanılır.

protected override void DrawCore(DrawingContext context, DrawingAttributes overrides)
{
    // Draw the stroke. Calling base.DrawCore accomplishes the same thing.
    Geometry geometry = GetGeometry(overrides);
    context.DrawGeometry(new SolidColorBrush(overrides.Color), null, geometry);

    StylusPointCollection points;

    // Get the stylus points used to draw the stroke.  The points used depends on
    // the value of FitToCurve.
    if (this.DrawingAttributes.FitToCurve)
    {
        points = this.GetBezierStylusPoints();
    }
    else
    {
        points = this.StylusPoints;
    }

    // Draw a circle at each stylus point.
    foreach (StylusPoint p in points)
    {
        context.DrawEllipse(null, new Pen(Brushes.Black, 1), (Point)p, 5, 5);
    }
}

Protected Overrides Sub DrawCore(ByVal context As DrawingContext, _
        ByVal overridedAttributes As DrawingAttributes)

    ' Draw the stroke. Calling base.DrawCore accomplishes the same thing.
    Dim geometry As Geometry = GetGeometry(overridedAttributes)
    context.DrawGeometry(New SolidColorBrush(overridedAttributes.Color), Nothing, geometry)

    Dim points As StylusPointCollection

    ' Get the stylus points used to draw the stroke.  The points used depends on
    ' the value of FitToCurve.
    If Me.DrawingAttributes.FitToCurve Then
        points = Me.GetBezierStylusPoints()
    Else
        points = Me.StylusPoints
    End If

    ' Draw a circle at each stylus point.
    Dim p As StylusPoint
    For Each p In points
        context.DrawEllipse(Nothing, New Pen(Brushes.Black, 1), CType(p, Point), 5, 5)
    Next p

End Sub

Açıklamalar

sınıfından DrawCore devraldığınızda Stroke özel çizim gerçekleştirmek için yöntemini geçersiz kılın.