/// <summary>
/// Constructs an <CODE>AffineTransformOp</CODE> given an affine transform
/// and the interpolation type.
/// </summary>
/// <param name="xform"> The <CODE>AffineTransform</CODE> to use for the operation. </param>
/// <param name="interpolationType"> One of the integer
/// interpolation type constants defined by this class:
/// <seealso cref="#TYPE_NEAREST_NEIGHBOR TYPE_NEAREST_NEIGHBOR"/>,
/// <seealso cref="#TYPE_BILINEAR TYPE_BILINEAR"/>,
/// <seealso cref="#TYPE_BICUBIC TYPE_BICUBIC"/>. </param>
/// <exception cref="ImagingOpException"> if the transform is non-invertible. </exception>
public AffineTransformOp(AffineTransform xform, int interpolationType)
{
ValidateTransform(xform);
this.Xform = (AffineTransform)xform.Clone();
switch (interpolationType)
{
case TYPE_NEAREST_NEIGHBOR:
case TYPE_BILINEAR:
case TYPE_BICUBIC:
break;
default:
throw new IllegalArgumentException("Unknown interpolation type: " + interpolationType);
}
this.InterpolationType_Renamed = interpolationType;
}
/// <summary>
/// Constructs an <CODE>AffineTransformOp</CODE> given an affine transform.
/// The interpolation type is determined from the
/// <CODE>RenderingHints</CODE> object. If the interpolation hint is
/// defined, it will be used. Otherwise, if the rendering quality hint is
/// defined, the interpolation type is determined from its value. If no
/// hints are specified (<CODE>hints</CODE> is null),
/// the interpolation type is {@link #TYPE_NEAREST_NEIGHBOR
/// TYPE_NEAREST_NEIGHBOR}.
/// </summary>
/// <param name="xform"> The <CODE>AffineTransform</CODE> to use for the
/// operation.
/// </param>
/// <param name="hints"> The <CODE>RenderingHints</CODE> object used to specify
/// the interpolation type for the operation.
/// </param>
/// <exception cref="ImagingOpException"> if the transform is non-invertible. </exception>
/// <seealso cref= java.awt.RenderingHints#KEY_INTERPOLATION </seealso>
/// <seealso cref= java.awt.RenderingHints#KEY_RENDERING </seealso>
public AffineTransformOp(AffineTransform xform, RenderingHints hints)
{
ValidateTransform(xform);
this.Xform = (AffineTransform)xform.Clone();
this.Hints = hints;
if (hints != null)
{
Object value = hints[hints.KEY_INTERPOLATION];
if (value == null)
{
value = hints[hints.KEY_RENDERING];
if (value == hints.VALUE_RENDER_SPEED)
{
InterpolationType_Renamed = TYPE_NEAREST_NEIGHBOR;
}
else if (value == hints.VALUE_RENDER_QUALITY)
{
InterpolationType_Renamed = TYPE_BILINEAR;
}
}
else if (value == hints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR)
{
InterpolationType_Renamed = TYPE_NEAREST_NEIGHBOR;
}
else if (value == hints.VALUE_INTERPOLATION_BILINEAR)
{
InterpolationType_Renamed = TYPE_BILINEAR;
}
else if (value == hints.VALUE_INTERPOLATION_BICUBIC)
{
InterpolationType_Renamed = TYPE_BICUBIC;
}
}
else
{
InterpolationType_Renamed = TYPE_NEAREST_NEIGHBOR;
}
}
// Various constructors that allow different levels of
// specificity. If the Shape is missing the whole renderable area
// is assumed. If hints is missing no hints are assumed.
/// <summary>
/// Constructs a RenderContext with a given transform.
/// The area of interest is supplied as a Shape,
/// and the rendering hints are supplied as a RenderingHints object.
/// </summary>
/// <param name="usr2dev"> an AffineTransform. </param>
/// <param name="aoi"> a Shape representing the area of interest. </param>
/// <param name="hints"> a RenderingHints object containing rendering hints. </param>
public RenderContext(AffineTransform usr2dev, Shape aoi, RenderingHints hints)
{
this.Hints = hints;
this.Aoi = aoi;
this.Usr2dev = (AffineTransform)usr2dev.Clone();
}