loci.formats.gui

Class LegacyQTTools

java.lang.Object

loci.formats.gui.LegacyQTTools

public class LegacyQTTools
extends Object

Utility class for working with QuickTime for Java.

Source code:

Trac, Gitweb

Field Summary

Fields

Modifier and Type	Field and Description
static String	EXPIRED_QT_MSG
protected boolean	expiredQT Flag indicating QuickTime for Java has expired.
protected boolean	initialized Flag indicating this class has been initialized.
static String	JVM_64BIT_MSG
protected boolean	jvm64Bit Flag indicating 64-bit JVM (does not support QTJava).
protected static ClassLoader	LOADER This custom class loader searches additional paths for the QTJava.zip library.
protected static boolean	MAC_OS_X
static String	NO_QT_MSG
protected boolean	noQT Flag indicating QuickTime for Java is not installed.
protected ReflectedUniverse	r Reflection tool for QuickTime for Java calls.
protected static String[]	SUFFIXES

Constructor Summary

Constructors

Constructor and Description
LegacyQTTools()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canDoQT() Whether QuickTime is available to this JVM.
void	checkQTLibrary() Checks whether QTJava is available, throwing an exception if not.
protected static ClassLoader	constructLoader()
Dimension	getPictDimensions(byte[] bytes) Gets width and height for the given PICT bytes.
String	getQTVersion() Gets the QuickTime for Java version number.
ReflectedUniverse	getUniverse() Gets QuickTime for Java reflected universe.
protected void	initClass() Initializes the class.
boolean	isJVM64Bit() Whether this JVM is 64-bit.
boolean	isQTExpired() Whether QuickTime for Java has expired.
Image	pictToImage(byte[] bytes) Converts the given byte array in PICT format to a Java image.

Methods inherited from class java.lang.Object

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

Field Detail

NO_QT_MSG

public static final String NO_QT_MSG

See Also:

Constant Field Values

JVM_64BIT_MSG

public static final String JVM_64BIT_MSG

See Also:

Constant Field Values

EXPIRED_QT_MSG

public static final String EXPIRED_QT_MSG

See Also:

Constant Field Values

SUFFIXES

protected static final String[] SUFFIXES

MAC_OS_X

protected static final boolean MAC_OS_X

LOADER

protected static final ClassLoader LOADER

This custom class loader searches additional paths for the QTJava.zip library. Java has a restriction where only one class loader can have a native library loaded within a JVM. So the class loader must be static, shared by all QTForms, or else an UnsatisfiedLinkError is thrown when attempting to initialize QTJava multiple times.

initialized

protected boolean initialized

Flag indicating this class has been initialized.

noQT

protected boolean noQT

Flag indicating QuickTime for Java is not installed.

jvm64Bit

protected boolean jvm64Bit

Flag indicating 64-bit JVM (does not support QTJava).

expiredQT

protected boolean expiredQT

Flag indicating QuickTime for Java has expired.

r

protected ReflectedUniverse r

Reflection tool for QuickTime for Java calls.

Constructor Detail

LegacyQTTools

public LegacyQTTools()

Method Detail

constructLoader

protected static ClassLoader constructLoader()

initClass

protected void initClass()

Initializes the class.

canDoQT

public boolean canDoQT()

Whether QuickTime is available to this JVM.

isJVM64Bit

public boolean isJVM64Bit()

Whether this JVM is 64-bit.

isQTExpired

public boolean isQTExpired()

Whether QuickTime for Java has expired.

getQTVersion

public String getQTVersion()

Gets the QuickTime for Java version number.

getUniverse

public ReflectedUniverse getUniverse()

Gets QuickTime for Java reflected universe.

getPictDimensions

public Dimension getPictDimensions(byte[] bytes)
                            throws FormatException,
                                   ReflectException

Gets width and height for the given PICT bytes.

Throws:

FormatException

ReflectException

pictToImage

public Image pictToImage(byte[] bytes)
                  throws FormatException

Converts the given byte array in PICT format to a Java image.

Throws:

FormatException

checkQTLibrary

public void checkQTLibrary()
                    throws MissingLibraryException

Checks whether QTJava is available, throwing an exception if not.

Throws:

MissingLibraryException