Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.

Copyright © 2006 Sun Microsystems, Inc. All rights reserved.

JSR 216 (Maintenance Release)

Uses of Interface
java.awt.image.ImageObserver

Packages that use ImageObserver
java.applet Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context. 
java.awt Contains all of the classes for creating user interfaces and for painting graphics and images. 
java.awt.image Provides classes for creating and modifying images. 
 

Uses of ImageObserver in java.applet
 

Classes in java.applet that implement ImageObserver
 class Applet
          An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.
 

Uses of ImageObserver in java.awt
 

Classes in java.awt that implement ImageObserver
 class Button
          This class creates a labeled button.
 class Canvas
          A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.
 class Checkbox
          A check box is a graphical component that can be in either an "on" (true) or "off" (false) state.
 class Choice
          The Choice class presents a pop-up menu of choices.
 class Component
          A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.
 class Container
          A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
 class Dialog
          A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user.
 class FileDialog
          The FileDialog class displays a dialog window from which the user can select a file.
 class Frame
          A Frame is a top-level window with a title and a border.
 class Label
          A Label object is a component for placing text in a container.
 class List
          The List component presents the user with a scrolling list of text items.
 class Panel
          Panel is the simplest container class.
 class Scrollbar
          The Scrollbar class embodies a scroll bar, a familiar user-interface object.
 class ScrollPane
          A container class which implements automatic horizontal and/or vertical scrolling for a single child component.
 class TextArea
          A TextArea object is a multi-line region that displays text.
 class TextComponent
          The TextComponent class is the superclass of any component that allows the editing of some text.
 class TextField
          A TextField object is a text component that allows for the editing of a single line of text.
 class Window
          A Window object is a top-level window with no borders and no menubar.
 

Methods in java.awt with parameters of type ImageObserver
abstract  boolean Toolkit.prepareImage(Image image, int width, int height, ImageObserver observer)
          Prepares an image for rendering.
abstract  int Toolkit.checkImage(Image image, int width, int height, ImageObserver observer)
          Indicates the construction status of a specified image that is being prepared for display.
abstract  boolean Graphics.drawImage(Image img, int x, int y, ImageObserver observer)
          Draws as much of the specified image as is currently available.
abstract  boolean Graphics.drawImage(Image img, int x, int y, int width, int height, ImageObserver observer)
          Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.
abstract  boolean Graphics.drawImage(Image img, int x, int y, Color bgcolor, ImageObserver observer)
          Draws as much of the specified image as is currently available.
abstract  boolean Graphics.drawImage(Image img, int x, int y, int width, int height, Color bgcolor, ImageObserver observer)
          Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.
abstract  boolean Graphics.drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, ImageObserver observer)
          Draws as much of the specified area of the specified image as is currently available, scaling it on the fly to fit inside the specified area of the destination drawable surface.
abstract  boolean Graphics.drawImage(Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, Color bgcolor, ImageObserver observer)
          Draws as much of the specified area of the specified image as is currently available, scaling it on the fly to fit inside the specified area of the destination drawable surface.
abstract  int Image.getWidth(ImageObserver observer)
          Determines the width of the image.
abstract  int Image.getHeight(ImageObserver observer)
          Determines the height of the image.
abstract  Object Image.getProperty(String name, ImageObserver observer)
          Gets a property of this image by name.
 boolean Component.prepareImage(Image image, ImageObserver observer)
          Prepares an image for rendering on this component.
 boolean Component.prepareImage(Image image, int width, int height, ImageObserver observer)
          Prepares an image for rendering on this component at the specified width and height.
 int Component.checkImage(Image image, ImageObserver observer)
          Returns the status of the construction of a screen representation of the specified image.
 int Component.checkImage(Image image, int width, int height, ImageObserver observer)
          Returns the status of the construction of a screen representation of the specified image.
 

Uses of ImageObserver in java.awt.image
 

Methods in java.awt.image with parameters of type ImageObserver
 int BufferedImage.getWidth(ImageObserver observer)
          Returns the width of the BufferedImage.
 int BufferedImage.getHeight(ImageObserver observer)
          Returns the height of the BufferedImage.
 Object BufferedImage.getProperty(String name, ImageObserver observer)
          Returns a property of the image by name.
 


JSR 216 (Maintenance Release)

Copyright © 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.

For more information, please consult the JSR 216 specification.