Apache POI - Common 5.3.0 · org.apache.poi.sl.image.ImageHeaderWMF

Aldus Placeable Metafile header - 22 byte structure before WMF data.

int Key; Magic number (always 9AC6CDD7h)
short Handle; Metafile HANDLE number (always 0)
short Left; Left coordinate in metafile units
short Top; Top coordinate in metafile units
short Right; Right coordinate in metafile units
short Bottom; Bottom coordinate in metafile units
short Inch; Number of metafile units per inch
int Reserved; Reserved (always 0)
short Checksum; Checksum value for previous 10 shorts

Field Summary

Modifier and Type	Field and Description
public static final int	APMHEADER_KEY
private final int	bottom
private int	checksum
private final int	handle
private final int	inch The number of logical units per inch used to represent the image.
private final int	left
private static final Logger	LOG
private final int	reserved
private final int	right
private final int	top

Constructor Summary

Access	Constructor and Description
public	ImageHeaderWMF(Rectangle dim)
public	ImageHeaderWMF(byte[] data, final int off)

Method Summary

Modifier and Type	Method and Description
public Rectangle	getBounds()
public int	getChecksum() Returns a checksum value for the previous 10 shorts in the header.
public int	getLength()
public Dimension	getSize()
public void	write(OutputStream out)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

APMHEADER_KEY	back to summary
public static final int APMHEADER_KEY

bottom	back to summary
private final int bottom

checksum	back to summary
private int checksum

handle	back to summary
private final int handle Annotations @SuppressWarnings:unused

inch	back to summary
private final int inch The number of logical units per inch used to represent the image. This value can be used to scale an image. By convention, an image is considered to be recorded at 1440 logical units (twips) per inch. Thus, a value of 720 specifies that the image SHOULD be rendered at twice its normal size, and a value of 2880 specifies that the image SHOULD be rendered at half its normal size.

inch

back to summary

private final int inch

The number of logical units per inch used to represent the image. This value can be used to scale an image. By convention, an image is considered to be recorded at 1440 logical units (twips) per inch. Thus, a value of 720 specifies that the image SHOULD be rendered at twice its normal size, and a value of 2880 specifies that the image SHOULD be rendered at half its normal size.

left	back to summary
private final int left

LOG	back to summary
private static final Logger LOG

reserved	back to summary
private final int reserved Annotations @SuppressWarnings:unused

right	back to summary
private final int right

top	back to summary
private final int top

Constructor Detail

ImageHeaderWMF	back to summary
public ImageHeaderWMF(Rectangle dim)

ImageHeaderWMF	back to summary
public ImageHeaderWMF(byte[] data, final int off)

Method Detail

getBounds	back to summary
public Rectangle getBounds()

getChecksum	back to summary
public int getChecksum() Returns a checksum value for the previous 10 shorts in the header. The checksum is calculated by XORing each short value to an initial value of 0:

getLength	back to summary
public int getLength()

getSize	back to summary
public Dimension getSize()

write	back to summary
public void write(OutputStream out) throws IOException