PointF.Addition Betreiber

Quelle:

PointF.cs

Quelle:

PointF.cs

Quelle:

PointF.cs

public:
 static System::Drawing::PointF operator +(System::Drawing::PointF pt, System::Drawing::Size sz);

public static System.Drawing.PointF operator + (System.Drawing.PointF pt, System.Drawing.Size sz);

static member ( + ) : System.Drawing.PointF * System.Drawing.Size -> System.Drawing.PointF

Public Shared Operator + (pt As PointF, sz As Size) As PointF

Parameter

Gibt zurück

Der verschobene PointF.

Beispiele

• Im folgenden Codebeispiel wird mithilfe des Addition -Operators ein ListBox Schatten hinzugefügt. Dieses Beispiel ist für die Verwendung mit einem Windows Form-Formular konzipiert. Fügen Sie zum Ausführen dieses Beispiels diesen Code in ein Formular ein, und rufen Sie die AddShadow -Methode auf, wenn Sie das Formularereignis Paint behandeln. Stellen Sie sicher, dass das Formular einen ListBox namens listBox1enthält.

private:
   void AddShadow( PaintEventArgs^ e )
   {
      // Create two SizeF objects.
      SizeF shadowSize = listBox1->Size;
      SizeF addSize = SizeF(10.5F,20.8F);

      // Add them together and save the result in shadowSize.
      shadowSize = shadowSize + addSize;

      // Get the location of the ListBox and convert it to a PointF.
      PointF shadowLocation = listBox1->Location;

      // Add two points to get a new location.
      shadowLocation = shadowLocation + System::Drawing::Size( 5, 5 );

      // Create a rectangleF. 
      RectangleF rectFToFill = RectangleF(shadowLocation,shadowSize);

      // Create a custom brush using a semi-transparent color, and 
      // then fill in the rectangle.
      Color customColor = Color::FromArgb( 50, Color::Gray );
      SolidBrush^ shadowBrush = gcnew SolidBrush( customColor );
      array<RectangleF>^ temp0 = {rectFToFill};
      e->Graphics->FillRectangles( shadowBrush, temp0 );

      // Dispose of the brush.
      delete shadowBrush;
   }

private void AddShadow(PaintEventArgs e)
{

    // Create two SizeF objects.
    SizeF shadowSize = listBox1.Size;
    SizeF addSize = new SizeF(10.5F, 20.8F);

    // Add them together and save the result in shadowSize.
    shadowSize = shadowSize + addSize;

    // Get the location of the ListBox and convert it to a PointF.
    PointF shadowLocation = listBox1.Location;

    // Add two points to get a new location.
    shadowLocation = shadowLocation + new Size(5, 5);

    // Create a rectangleF. 
    RectangleF rectFToFill = 
        new RectangleF(shadowLocation, shadowSize);

    // Create a custom brush using a semi-transparent color, and 
    // then fill in the rectangle.
    Color customColor = Color.FromArgb(50, Color.Gray);
    SolidBrush shadowBrush = new SolidBrush(customColor);
    e.Graphics.FillRectangles(shadowBrush, new RectangleF[]{rectFToFill});

    // Dispose of the brush.
    shadowBrush.Dispose();
}

Private Sub AddShadow(ByVal e As PaintEventArgs)

    ' Create two SizeF objects.
    Dim shadowSize As SizeF = Size.op_Implicit(listBox1.Size)
    Dim addSize As New SizeF(10.5F, 20.8F)

    ' Add them together and save the result in shadowSize.
    shadowSize = SizeF.op_Addition(shadowSize, addSize)

    ' Get the location of the ListBox and convert it to a PointF.
    Dim shadowLocation As PointF = Point.op_Implicit(listBox1.Location)

    ' Add a Size to the Point to get a new location.
    shadowLocation = PointF.op_Addition(shadowLocation, New Size(5, 5))

    ' Create a rectangleF. 
    Dim rectFToFill As New RectangleF(shadowLocation, shadowSize)

    ' Create a custom brush using a semi-transparent color, and 
    ' then fill in the rectangle.
    Dim customColor As Color = Color.FromArgb(50, Color.Gray)
    Dim shadowBrush As SolidBrush = New SolidBrush(customColor)
    e.Graphics.FillRectangles(shadowBrush, _
        New RectangleF() {rectFToFill})

    ' Dispose of the brush.
    shadowBrush.Dispose()
End Sub

Quelle:

PointF.cs

Quelle:

PointF.cs

Quelle:

PointF.cs

public:
 static System::Drawing::PointF operator +(System::Drawing::PointF pt, System::Drawing::SizeF sz);

public static System.Drawing.PointF operator + (System.Drawing.PointF pt, System.Drawing.SizeF sz);

static member ( + ) : System.Drawing.PointF * System.Drawing.SizeF -> System.Drawing.PointF

Public Shared Operator + (pt As PointF, sz As SizeF) As PointF

Parameter

Gibt zurück

Der verschobene PointF.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie der Addition Operator verwendet wird. Fügen Sie zum Ausführen dieses Beispiels den folgenden Code in ein Windows Form-Format ein. Behandeln Sie das Ereignis des Formulars Paint , und rufen Sie opAdditionExampleauf , übergeben e als PaintEventArgs.

private void OpAdditionExample(PaintEventArgs e)
{
    PointF point1 = new PointF(120.5F, 120F);
    SizeF size1 = new SizeF(120.5F, 30.5F);
    RectangleF rect1 = new RectangleF(point1, size1);
    if (new PointF(rect1.Right, rect1.Bottom) == point1 + size1)
        e.Graphics.DrawString("They are equal", this.Font, Brushes.Black, rect1);
    else
        e.Graphics.DrawString("They are not equal", this.Font, Brushes.Red, rect1);
}

Private Sub OpAdditionExample(ByVal e As PaintEventArgs) 
    Dim size1 As New SizeF(120.5F, 30.5F)
    Dim point1 As New PointF(20.5F, 20F)
    Dim rect1 As New RectangleF(point1, size1)
    If New PointF(rect1.Right, rect1.Bottom) = point1 + size1 Then
        e.Graphics.DrawString("They are equal", Me.Font, Brushes.Black, rect1)
    Else
        e.Graphics.DrawString("They are not equal", Me.Font, Brushes.Red, rect1)
    End If
 
End Sub

Hinweise

Der Addition Operator fügt der Width der angegebenen Größe der x-Koordinate von PointF und der Height der y-Koordinate des PointFhinzu.

Die entsprechende Methode für diesen Operator ist PointF.Add(PointF, SizeF)