Java java.awt.image.renderable Class RenderContext（JDK8）

Constructor Detail

• RenderContext

  public RenderContext(AffineTransform usr2dev,
                       Shape aoi,
                       RenderingHints hints)

  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.

  Parameters:

  usr2dev - an AffineTransform.

  aoi - a Shape representing the area of interest.

  hints - a RenderingHints object containing rendering hints.

• RenderContext

  public RenderContext(AffineTransform usr2dev)

  Constructs a RenderContext with a given transform. The area of interest is taken to be the entire renderable area. No rendering hints are used.

  Parameters:

  usr2dev - an AffineTransform.

• RenderContext

  public RenderContext(AffineTransform usr2dev,
                       RenderingHints hints)

  Constructs a RenderContext with a given transform and rendering hints. The area of interest is taken to be the entire renderable area.

  Parameters:

  usr2dev - an AffineTransform.

  hints - a RenderingHints object containing rendering hints.

• RenderContext

  public RenderContext(AffineTransform usr2dev,
                       Shape aoi)

  Constructs a RenderContext with a given transform and area of interest. The area of interest is supplied as a Shape. No rendering hints are used.

  Parameters:

  usr2dev - an AffineTransform.

  aoi - a Shape representing the area of interest.

Method Detail

• getRenderingHints

  public RenderingHints getRenderingHints()

  Gets the rendering hints of this RenderContext.

  Returns:

  a RenderingHints object that represents the rendering hints of this RenderContext.

  See Also:

  setRenderingHints(RenderingHints)

• setRenderingHints

  public void setRenderingHints(RenderingHints hints)

  Sets the rendering hints of this RenderContext.

  Parameters:

  hints - a RenderingHints object that represents the rendering hints to assign to this RenderContext.

  See Also:

  getRenderingHints()

• setTransform

  public void setTransform(AffineTransform newTransform)

  Sets the current user-to-device AffineTransform contained in the RenderContext to a given transform.

  Parameters:

  newTransform - the new AffineTransform.

  See Also:

  getTransform()

• preConcatenateTransform

  public void preConcatenateTransform(AffineTransform modTransform)

  Modifies the current user-to-device transform by prepending another transform. In matrix notation the operation is:

   [this] = [modTransform] x [this]
   

  Parameters:

  modTransform - the AffineTransform to prepend to the current usr2dev transform.

  Since:

  1.3

• preConcetenateTransform

  @Deprecated
  public void preConcetenateTransform(AffineTransform modTransform)

  Deprecated. replaced by preConcatenateTransform(AffineTransform).
  Modifies the current user-to-device transform by prepending another transform. In matrix notation the operation is:

   [this] = [modTransform] x [this]
   

  This method does the same thing as the preConcatenateTransform method. It is here for backward compatibility with previous releases which misspelled the method name.

  Parameters:

  modTransform - the AffineTransform to prepend to the current usr2dev transform.

• concatenateTransform

  public void concatenateTransform(AffineTransform modTransform)

  Modifies the current user-to-device transform by appending another transform. In matrix notation the operation is:

   [this] = [this] x [modTransform]
   

  Parameters:

  modTransform - the AffineTransform to append to the current usr2dev transform.

  Since:

  1.3

• concetenateTransform

  @Deprecated
  public void concetenateTransform(AffineTransform modTransform)

  Deprecated. replaced by concatenateTransform(AffineTransform).
  Modifies the current user-to-device transform by appending another transform. In matrix notation the operation is:

   [this] = [this] x [modTransform]
   

  This method does the same thing as the concatenateTransform method. It is here for backward compatibility with previous releases which misspelled the method name.

  Parameters:

  modTransform - the AffineTransform to append to the current usr2dev transform.

• getTransform

  public AffineTransform getTransform()

  Gets the current user-to-device AffineTransform.

  Returns:

  a reference to the current AffineTransform.

  See Also:

  setTransform(AffineTransform)

• setAreaOfInterest

  public void setAreaOfInterest(Shape newAoi)

  Sets the current area of interest. The old area is discarded.

  Parameters:

  newAoi - The new area of interest.

  See Also:

  getAreaOfInterest()

• getAreaOfInterest

  public Shape getAreaOfInterest()

  Gets the ares of interest currently contained in the RenderContext.

  Returns:

  a reference to the area of interest of the RenderContext, or null if none is specified.

  See Also:

  setAreaOfInterest(Shape)

• clone

  public Object clone()

  Makes a copy of a RenderContext. The area of interest is copied by reference. The usr2dev AffineTransform and hints are cloned, while the area of interest is copied by reference.

  Overrides:

  clone in class Object

  Returns:

  the new cloned RenderContext.

  See Also:

  Cloneable