private sysMedia.Brush FilpImageBrush(sysMedia.Brush brush)
{
var bgBrush = brush.Clone();
var transform = sysMedia.Matrix.Identity;
transform.ScaleAt(1, -1, 0.5, 0.5);
if (bgBrush is sysMedia.ImageBrush)
{
bgBrush.RelativeTransform = new sysMedia.MatrixTransform(transform);
}
return bgBrush;
}
private sysMedia.Brush ClipImageBrush(sysMedia.Brush brush, Rect regionRect)
{
var imgBrush = brush.Clone() as sysMedia.ImageBrush;
if (imgBrush != null)
{
imgBrush.Viewbox = regionRect;//ToDo: need to consider the image is not a square.
return imgBrush;
}
return new sysMedia.SolidColorBrush(sysMedia.Colors.Transparent);
}
private sysMedia.Brush RotateImageBrush(sysMedia.Brush brush, int degree)
{
var bgBrush = brush.Clone();
var transform = sysMedia.Matrix.Identity;
transform.RotateAt(degree, 0.5, 0.5);
if (bgBrush is sysMedia.ImageBrush)
{
bgBrush.RelativeTransform = new sysMedia.MatrixTransform(transform);
}
return bgBrush;
}