Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class PageFormat - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
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java.awt.print
Class PageFormat

java.lang.Object
  |
  +--java.awt.print.PageFormat

public class PageFormat
extends Object
implements Cloneable

The PageFormat class describes the size and orientation of a page to be printed.

Field Summary

static int LANDSCAPE
          The origin is at the bottom left of the paper with x running bottom to top and y running left to right.

static int PORTRAIT
          The origin is at the top left of the paper with x running to the right and y running down the paper.

static int REVERSE_LANDSCAPE
          The origin is at the top right of the paper with x running top to bottom and y running right to left.

Constructor Summary

PageFormat()
          Creates a default, portrait-oriented PageFormat.

Method Summary

Object clone()
          Makes a copy of this PageFormat with the same contents as this PageFormat.

double getHeight()
          Returns the height, in 1/72nds of an inch, of the page.

double getImageableHeight()
          Return the height, in 1/72nds of an inch, of the imageable area of the page.

double getImageableWidth()
          Returns the width, in 1/72nds of an inch, of the imageable area of the page.

double getImageableX()
          Returns the x coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat.

double getImageableY()
          Returns the y coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat.

double[] getMatrix()
          Returns a transformation matrix that translates user space rendering to the requested orientation of the page.

int getOrientation()
          Returns the orientation of this PageFormat.

Paper getPaper()
          Returns a copy of the Paper object associated with this PageFormat.

double getWidth()
          Returns the width, in 1/72nds of an inch, of the page.

void setOrientation(int orientation)
          Sets the page orientation.

void setPaper(Paper paper)
          Sets the Paper object for this PageFormat.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LANDSCAPE

public static final int LANDSCAPE

The origin is at the bottom left of the paper with x running bottom to top and y running left to right. Note that this is not the Macintosh landscape but is the Window's and PostScript landscape.

PORTRAIT

public static final int PORTRAIT

The origin is at the top left of the paper with x running to the right and y running down the paper.

REVERSE_LANDSCAPE

public static final int REVERSE_LANDSCAPE

The origin is at the top right of the paper with x running top to bottom and y running right to left. Note that this is the Macintosh landscape.

Constructor Detail

PageFormat

public PageFormat()

Creates a default, portrait-oriented PageFormat.

Method Detail

clone

public Object clone()

Makes a copy of this PageFormat with the same contents as this PageFormat.

Overrides:: clone in class Object

Returns:: a copy of this PageFormat.

getWidth

public double getWidth()

Returns the width, in 1/72nds of an inch, of the page. This method takes into account the orientation of the page when determining the width.

Returns:: the width of the page.

getHeight

public double getHeight()

Returns the height, in 1/72nds of an inch, of the page. This method takes into account the orientation of the page when determining the height.

Returns:: the height of the page.

getImageableX

public double getImageableX()

Returns the x coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat. This method takes into account the orientation of the page.

Returns:: the x coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat.

getImageableY

public double getImageableY()

Returns the y coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat. This method takes into account the orientation of the page.

Returns:: the y coordinate of the upper left point of the imageable area of the Paper object associated with this PageFormat.

getImageableWidth

public double getImageableWidth()

Returns the width, in 1/72nds of an inch, of the imageable area of the page. This method takes into account the orientation of the page.

Returns:: the width of the page.

getImageableHeight

public double getImageableHeight()

Return the height, in 1/72nds of an inch, of the imageable area of the page. This method takes into account the orientation of the page.

Returns:: the height of the page.

getPaper

public Paper getPaper()

Returns a copy of the Paper object associated with this PageFormat.

Returns:: a copy of the Paper object associated with this PageFormat.

setPaper

public void setPaper(Paper paper)

Sets the Paper object for this PageFormat.

Parameters:: paper - the Paper object to which to set the Paper object for this PageFormat.

setOrientation

public void setOrientation(int orientation)
                    throws IllegalArgumentException

Sets the page orientation. orientation must be one of the constants: PORTRAIT, LANDSCAPE, or REVERSE_LANDSCAPE.

Parameters:: orientation - the new orientation for the page
Throws:: IllegalArgumentException - an unknown orientation was requested

getOrientation

public int getOrientation()

Returns the orientation of this PageFormat.

Returns:: this PageFormat object's orientation.

getMatrix

public double[] getMatrix()

Returns a transformation matrix that translates user space rendering to the requested orientation of the page. The values are placed into the array as { m00, m10, m01, m11, m02, m12} in the form required by the AffineTransform constructor.

Returns:: the matrix used to translate user space rendering to the orientation of the page.
See Also:: AffineTransform