ToolStripItem.ContentRectangle Eigenschaft

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Ruft den Bereich ab, in dem Inhalte, z. B. Text und Symbole, in einem ToolStripItem platziert werden können, ohne dass Hintergrundrahmen überschrieben werden.

public:
 property System::Drawing::Rectangle ContentRectangle { System::Drawing::Rectangle get(); };

[System.ComponentModel.Browsable(false)]
public System.Drawing.Rectangle ContentRectangle { get; }

[<System.ComponentModel.Browsable(false)>]
member this.ContentRectangle : System.Drawing.Rectangle

Public ReadOnly Property ContentRectangle As Rectangle

Eigenschaftswert

Rectangle

Ein Rectangle, das vier ganze Zahlen enthält, die die Position und Größe von ToolStripItem-Inhalten ohne den Rahmen darstellen.

Attribute

BrowsableAttribute

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie Sie die ContentRectangle Eigenschaft zum benutzerdefinierten Rendering verwenden. Dieses Codebeispiel ist Teil eines größeren Beispiels, das für die ToolStripItem Klasse bereitgestellt wird.

// This utility method computes the layout of the 
// RolloverItem control's image area and the text area.
// For brevity, only the following settings are 
// supported:
//
// ToolStripTextDirection.Horizontal
// TextImageRelation.ImageBeforeText 
// TextImageRelation.ImageBeforeText
// 
// It would not be difficult to support vertical text
// directions and other image/text relationships.
private void ComputeImageAndTextLayout()
{
    Rectangle cr = base.ContentRectangle;
    Image img = base.Owner.ImageList.Images[base.ImageKey];

    // Compute the center of the item's ContentRectangle.
    int centerY = (cr.Height - img.Height) / 2;

    // Find the dimensions of the image and the text 
    // areas of the item. The text occupies the space 
    // not filled by the image. 
    if (base.TextImageRelation == TextImageRelation.ImageBeforeText &&
        base.TextDirection == ToolStripTextDirection.Horizontal)
    {
        imageRect = new Rectangle(
            base.ContentRectangle.Left,
            centerY,
            base.Image.Width,
            base.Image.Height);

        textRect = new Rectangle(
            imageRect.Width,
            base.ContentRectangle.Top,
            base.ContentRectangle.Width - imageRect.Width,
            base.ContentRectangle.Height);
    }
    else if (base.TextImageRelation == TextImageRelation.TextBeforeImage &&
             base.TextDirection == ToolStripTextDirection.Horizontal)
    {
        imageRect = new Rectangle(
            base.ContentRectangle.Right - base.Image.Width,
            centerY,
            base.Image.Width,
            base.Image.Height);

        textRect = new Rectangle(
            base.ContentRectangle.Left,
            base.ContentRectangle.Top,
            imageRect.X,
            base.ContentRectangle.Bottom);
    }
}

   ' This utility method computes the layout of the 
   ' RolloverItem control's image area and the text area.
   ' For brevity, only the following settings are 
   ' supported:
   '
   ' ToolStripTextDirection.Horizontal
   ' TextImageRelation.ImageBeforeText 
   ' TextImageRelation.ImageBeforeText
   ' 
   ' It would not be difficult to support vertical text
   ' directions and other image/text relationships.
   Private Sub ComputeImageAndTextLayout()
      Dim cr As Rectangle = MyBase.ContentRectangle
      Dim img As Image = MyBase.Owner.ImageList.Images(MyBase.ImageKey)
      
      ' Compute the center of the item's ContentRectangle.
        Dim centerY As Integer = CInt((cr.Height - img.Height) / 2)
      
      ' Find the dimensions of the image and the text 
      ' areas of the item. The text occupies the space 
      ' not filled by the image. 
        If MyBase.TextImageRelation = _
        TextImageRelation.ImageBeforeText AndAlso _
        MyBase.TextDirection = ToolStripTextDirection.Horizontal Then

            imageRect = New Rectangle( _
            MyBase.ContentRectangle.Left, _
            centerY, _
            MyBase.Image.Width, _
            MyBase.Image.Height)

            textRect = New Rectangle( _
            imageRect.Width, _
            MyBase.ContentRectangle.Top, _
            MyBase.ContentRectangle.Width - imageRect.Width, _
            MyBase.ContentRectangle.Height)

        ElseIf MyBase.TextImageRelation = _
        TextImageRelation.TextBeforeImage AndAlso _
        MyBase.TextDirection = ToolStripTextDirection.Horizontal Then

            imageRect = New Rectangle( _
            MyBase.ContentRectangle.Right - MyBase.Image.Width, _
            centerY, _
            MyBase.Image.Width, _
            MyBase.Image.Height)

            textRect = New Rectangle( _
            MyBase.ContentRectangle.Left, _
            MyBase.ContentRectangle.Top, _
            imageRect.X, _
            MyBase.ContentRectangle.Bottom)

        End If
    End Sub
End Class

Hinweise

Verwenden Sie die ContentRectangle Eigenschaft, um benutzerdefinierte Malerei einer ToolStripItem.