- java.lang.Object
-
- java.awt.image.FilteredImageSource
-
- All Implemented Interfaces:
- ImageProducer
public class FilteredImageSource extends Object implements ImageProducer
This class is an implementation of the ImageProducer interface which takes an existing image and a filter object and uses them to produce image data for a new filtered version of the original image. Here is an example which filters an image by swapping the red and blue compents:Image src = getImage("doc:///demo/images/duke/T1.gif"); ImageFilter colorfilter = new RedBlueSwapFilter(); Image img = createImage(new FilteredImageSource(src.getSource(), colorfilter));
- See Also:
ImageProducer
-
-
Constructor Summary
Constructors Constructor and Description FilteredImageSource(ImageProducer orig, ImageFilter imgf)
Constructs an ImageProducer object from an existing ImageProducer and a filter object.
-
Method Summary
Methods Modifier and Type Method and Description void
addConsumer(ImageConsumer ic)
Adds the specifiedImageConsumer
to the list of consumers interested in data for the filtered image.boolean
isConsumer(ImageConsumer ic)
Determines whether an ImageConsumer is on the list of consumers currently interested in data for this image.void
removeConsumer(ImageConsumer ic)
Removes an ImageConsumer from the list of consumers interested in data for this image.void
requestTopDownLeftRightResend(ImageConsumer ic)
Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order.void
startProduction(ImageConsumer ic)
Starts production of the filtered image.
-
-
-
Constructor Detail
-
FilteredImageSource
public FilteredImageSource(ImageProducer orig, ImageFilter imgf)
Constructs an ImageProducer object from an existing ImageProducer and a filter object.- Parameters:
orig
- the specifiedImageProducer
imgf
- the specifiedImageFilter
- See Also:
ImageFilter
,Component.createImage(java.awt.image.ImageProducer)
-
-
Method Detail
-
addConsumer
public void addConsumer(ImageConsumer ic)
Adds the specifiedImageConsumer
to the list of consumers interested in data for the filtered image. An instance of the originalImageFilter
is created (using the filter'sgetFilterInstance
method) to manipulate the image data for the specifiedImageConsumer
. The newly created filter instance is then passed to theaddConsumer
method of the originalImageProducer
.This method is public as a side effect of this class implementing the
ImageProducer
interface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
addConsumer
in interfaceImageProducer
- Parameters:
ic
- the consumer for the filtered image- See Also:
ImageConsumer
-
isConsumer
public boolean isConsumer(ImageConsumer ic)
Determines whether an ImageConsumer is on the list of consumers currently interested in data for this image.This method is public as a side effect of this class implementing the
ImageProducer
interface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
isConsumer
in interfaceImageProducer
- Parameters:
ic
- the specifiedImageConsumer
- Returns:
- true if the ImageConsumer is on the list; false otherwise
- See Also:
ImageConsumer
-
removeConsumer
public void removeConsumer(ImageConsumer ic)
Removes an ImageConsumer from the list of consumers interested in data for this image.This method is public as a side effect of this class implementing the
ImageProducer
interface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
removeConsumer
in interfaceImageProducer
- Parameters:
ic
- the specifiedImageConsumer
- See Also:
ImageConsumer
-
startProduction
public void startProduction(ImageConsumer ic)
Starts production of the filtered image. If the specifiedImageConsumer
isn't already a consumer of the filtered image, an instance of the originalImageFilter
is created (using the filter'sgetFilterInstance
method) to manipulate the image data for theImageConsumer
. The filter instance for theImageConsumer
is then passed to thestartProduction
method of the originalImageProducer
.This method is public as a side effect of this class implementing the
ImageProducer
interface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
startProduction
in interfaceImageProducer
- Parameters:
ic
- the consumer for the filtered image- See Also:
ImageConsumer
-
requestTopDownLeftRightResend
public void requestTopDownLeftRightResend(ImageConsumer ic)
Requests that a given ImageConsumer have the image data delivered one more time in top-down, left-right order. The request is handed to the ImageFilter for further processing, since the ability to preserve the pixel ordering depends on the filter.This method is public as a side effect of this class implementing the
ImageProducer
interface. It should not be called from user code, and its behavior if called from user code is unspecified.- Specified by:
requestTopDownLeftRightResend
in interfaceImageProducer
- Parameters:
ic
- the specifiedImageConsumer
- See Also:
ImageConsumer
-
-
Deutsche Übersetzung
Sie haben gebeten, diese Seite auf Deutsch zu besuchen. Momentan ist nur die Oberfläche übersetzt, aber noch nicht der gesamte Inhalt.Wenn Sie mir bei Übersetzungen helfen wollen, ist Ihr Beitrag willkommen. Alles, was Sie tun müssen, ist, sich auf der Website zu registrieren und mir eine Nachricht zu schicken, in der Sie gebeten werden, Sie der Gruppe der Übersetzer hinzuzufügen, die Ihnen die Möglichkeit gibt, die gewünschten Seiten zu übersetzen. Ein Link am Ende jeder übersetzten Seite zeigt an, dass Sie der Übersetzer sind und einen Link zu Ihrem Profil haben.
Vielen Dank im Voraus.
Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-java/awt/image/filteredimagesource.html
Die Infobro ist eine persönliche Seite, deren Inhalt in meiner alleinigen Verantwortung liegt. Der Text ist unter der CreativeCommons-Lizenz (BY-NC-SA) verfügbar. Weitere Informationen auf die Nutzungsbedingungen und dem Autor.
Referenzen
Diese Verweise und Links verweisen auf Dokumente, die während des Schreibens dieser Seite konsultiert wurden, oder die zusätzliche Informationen liefern können, aber die Autoren dieser Quellen können nicht für den Inhalt dieser Seite verantwortlich gemacht werden.
Der Autor Diese Website ist allein dafür verantwortlich, wie die verschiedenen Konzepte und Freiheiten, die mit den Nachschlagewerken gemacht werden, hier dargestellt werden. Denken Sie daran, dass Sie mehrere Quellinformationen austauschen müssen, um das Risiko von Fehlern zu reduzieren.