org.gstreamer

Class GObject

java.lang.Object

org.gstreamer.lowlevel.NativeValue

org.gstreamer.lowlevel.Handle

org.gstreamer.lowlevel.NativeObject

org.gstreamer.lowlevel.RefCountedObject

org.gstreamer.GObject

Direct Known Subclasses:

ColorBalanceChannel, Controller, ControlSource, GstObject, LFOControlSource, MixerTrack, Property, StreamInfo, TunerChannel, TunerNorm

public abstract class GObject
extends RefCountedObject

This is an abstract class providing some GObject-like facilities in a common base class. Not intended for direct use.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	GObject.GCallback
static interface	GObject.NOTIFY The notify signal is emitted on an object when one of its properties has been changed.

Nested classes/interfaces inherited from class org.gstreamer.lowlevel.NativeObject

NativeObject.Initializer

Field Summary

Fields inherited from class org.gstreamer.lowlevel.NativeObject

defaultInit, ownsHandle

Constructor Summary

Constructors

Constructor and Description
GObject(NativeObject.Initializer init)

Method Summary

Methods

Modifier and Type	Method and Description
protected <T> void	addCallback(Class<T> listenerClass, T listener, GObject.GCallback cb)
<T> void	connect(Class<T> listenerClass, T listener, com.sun.jna.Callback cb)
void	connect(GObject.NOTIFY listener) Add a listener for the notify signal
<T> void	connect(String signal, Class<T> listenerClass, T listener, com.sun.jna.Callback cb)
void	connect(String signal, Closure closure)
<T> void	disconnect(Class<T> listenerClass, T listener)
void	disconnect(GObject.NOTIFY listener) Remove a listener for the notify signal
void	disconnect(String signal, Closure closure)
protected void	disposeNativeHandle(com.sun.jna.Pointer ptr)
void	emit(int signal_id, GQuark detail, Object... arguments)
void	emit(String signal, Object... arguments)
protected com.sun.jna.NativeLong	g_signal_connect(String signal, com.sun.jna.Callback callback)
Object	get(String property) Gets the current value of a GObject property.
com.sun.jna.Pointer	getPointer(String property) Gets the pointer to the the value of the specified property.
Object	getPropertyDefaultValue(String property) Gets the default value set to GObject property.
Object	getPropertyMaximumValue(String property) Gets the maximum value should be set to GObject property.
Object	getPropertyMinimumValue(String property) Gets the minimum value should be set to GObject property.
GType	getType() Gives the type value.
GType	getType(String property)
String	getTypeName() Gives the type name.
protected void	invalidate()
List<String>	listPropertyNames()
protected void	ref()
<T> void	removeCallback(Class<T> listenerClass, T listener)
void	set(String property, Object data) Sets the value of a GObject property.
protected void	unref()

Methods inherited from class org.gstreamer.lowlevel.NativeObject

classFor, disown, dispose, equals, finalize, getNativeAddress, handle, hashCode, initializer, initializer, instanceFor, isDisposed, nativeValue, objectFor, objectFor, objectFor, objectFor, toString

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GObject

public GObject(NativeObject.Initializer init)

Method Detail

getType

public GType getType()

Gives the type value.

getTypeName

public String getTypeName()

Gives the type name.

set

public void set(String property,
       Object data)

Sets the value of a GObject property.

Parameters:

property - The property to set.

data - The value for the property. This must be of the type expected by gstreamer.

getPropertyDefaultValue

public Object getPropertyDefaultValue(String property)

Gets the default value set to GObject property.

Parameters:

property - The name of the property.

Returns:

A java value representing the GObject property's default value.

getPropertyMinimumValue

public Object getPropertyMinimumValue(String property)

Gets the minimum value should be set to GObject property.

Parameters:

property - The name of the property.

Returns:

A java value representing the GObject property's minimum value.

getPropertyMaximumValue

public Object getPropertyMaximumValue(String property)

Gets the maximum value should be set to GObject property.

Parameters:

property - The name of the property.

Returns:

A java value representing the GObject property's maximum value.

get

public Object get(String property)

Gets the current value of a GObject property.

Parameters:

property - The name of the property to get.

Returns:

A java value representing the GObject property value.

listPropertyNames

public List<String> listPropertyNames()

getType

public GType getType(String property)

getPointer

public com.sun.jna.Pointer getPointer(String property)

Gets the pointer to the the value of the specified property.

Parameters:

property - The name of the property to get.

Returns:

A java pointer.

disposeNativeHandle

protected void disposeNativeHandle(com.sun.jna.Pointer ptr)

Specified by:

disposeNativeHandle in class NativeObject

ref

protected void ref()

Specified by:

ref in class RefCountedObject

unref

protected void unref()

Specified by:

unref in class RefCountedObject

invalidate

protected void invalidate()

Overrides:

invalidate in class NativeObject

g_signal_connect

protected com.sun.jna.NativeLong g_signal_connect(String signal,
                                      com.sun.jna.Callback callback)

addCallback

protected <T> void addCallback(Class<T> listenerClass,
                   T listener,
                   GObject.GCallback cb)

removeCallback

public <T> void removeCallback(Class<T> listenerClass,
                      T listener)

connect

public <T> void connect(Class<T> listenerClass,
               T listener,
               com.sun.jna.Callback cb)

connect

public <T> void connect(String signal,
               Class<T> listenerClass,
               T listener,
               com.sun.jna.Callback cb)

disconnect

public <T> void disconnect(Class<T> listenerClass,
                  T listener)

connect

public void connect(String signal,
           Closure closure)

disconnect

public void disconnect(String signal,
              Closure closure)

emit

public void emit(int signal_id,
        GQuark detail,
        Object... arguments)

emit

public void emit(String signal,
        Object... arguments)

connect

public void connect(GObject.NOTIFY listener)

Add a listener for the notify signal

Parameters:

listener - Listener to be called when one of its properties has been changed of the object.

disconnect

public void disconnect(GObject.NOTIFY listener)

Remove a listener for the notify signal

Parameters:

listener - The listener that was previously added.