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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package javax.print.attribute.standard;
import javax.print.attribute.Attribute;
import javax.print.attribute.ResolutionSyntax;
import javax.print.attribute.DocAttribute;
import javax.print.attribute.PrintRequestAttribute;
import javax.print.attribute.PrintJobAttribute;
/**
* Class PrinterResolution is a printing attribute class that specifies an
* exact resolution supported by a printer or to be used for a print job.
* This attribute assumes that printers have a small set of device resolutions
* at which they can operate rather than a continuum.
* <p>
* PrinterResolution is used in multiple ways:
* <OL TYPE=1>
* <LI>
* When a client searches looking for a printer that supports the client's
* desired resolution exactly (no more, no less), the client specifies
* an instance of class PrinterResolution indicating the exact resolution the
* client wants. Only printers supporting that exact resolution will match the
* search.
*
* <LI>
* When a client needs to print a job using the client's desired resolution
* exactly (no more, no less), the client specifies an instance of class
* PrinterResolution as an attribute of the Print Job. This will fail if the
* Print Job doesn't support that exact resolution, and Fidelity is set to
* true.
* </OL>
* If a client wants to locate a printer supporting a resolution
* greater than some required minimum, then it may be necessary to exclude
* this attribute from a lookup request and to directly query the set of
* supported resolutions, and specify the one that most closely meets
* the client's requirements.
* In some cases this may be more simply achieved by specifying a
* PrintQuality attribute which often controls resolution.
* <P>
* <B>IPP Compatibility:</B> The information needed to construct an IPP
* {@code "printer-resolution"} attribute can be obtained by calling
* methods on the PrinterResolution object. The category name returned by
* {@code getName()} gives the IPP attribute name.
*
* @author David Mendenhall
* @author Alan Kaminsky
*/
public final class PrinterResolution extends ResolutionSyntax
implements DocAttribute, PrintRequestAttribute, PrintJobAttribute {
private static final long serialVersionUID = 13090306561090558L;
/**
* Construct a new printer resolution attribute from the given items.
*
* @param crossFeedResolution
* Cross feed direction resolution.
* @param feedResolution
* Feed direction resolution.
* @param units
* Unit conversion factor, e.g. {@code ResolutionSyntax.DPI}
* or {@code ResolutionSyntax.DPCM}.
*
* @exception IllegalArgumentException
* (unchecked exception) Thrown if {@code crossFeedResolution < 1} or
* {@code feedResolution < 1} or {@code units < 1}.
*/
public PrinterResolution(int crossFeedResolution, int feedResolution,
int units) {
super (crossFeedResolution, feedResolution, units);
}
/**
* Returns whether this printer resolution attribute is equivalent to the
* passed in object. To be equivalent, all of the following conditions
* must be true:
* <OL TYPE=1>
* <LI>
* {@code object} is not null.
* <LI>
* {@code object} is an instance of class PrinterResolution.
* <LI>
* This attribute's cross feed direction resolution is equal to
* {@code object}'s cross feed direction resolution.
* <LI>
* This attribute's feed direction resolution is equal to
* {@code object}'s feed direction resolution.
* </OL>
*
* @param object Object to compare to.
*
* @return True if {@code object} is equivalent to this printer
* resolution attribute, false otherwise.
*/
public boolean equals(Object object) {
return (super.equals (object) &&
object instanceof PrinterResolution);
}
/**
* Get the printing attribute class which is to be used as the "category"
* for this printing attribute value.
* <P>
* For class PrinterResolution, the category is class PrinterResolution itself.
*
* @return Printing attribute class (category), an instance of class
* {@link java.lang.Class java.lang.Class}.
*/
public final Class<? extends Attribute> getCategory() {
return PrinterResolution.class;
}
/**
* Get the name of the category of which this attribute value is an
* instance.
* <P>
* For class PrinterResolution, the
* category name is {@code "printer-resolution"}.
*
* @return Attribute category name.
*/
public final String getName() {
return "printer-resolution";
}
}