AbstractButton
, AbstractColorChooserPanel
, Applet
, BasicArrowButton
, BasicComboBoxRenderer
, BasicComboBoxRenderer.UIResource
, BasicComboPopup
, BasicInternalFrameTitlePane
, BasicInternalFrameTitlePane.SystemMenuBar
, BasicSplitPaneDivider
, BasicToolBarUI.DragWindow
, Box
, Box.Filler
, Button
, Canvas
, CellRendererPane
, Checkbox
, Choice
, Component
, Container
, DefaultListCellRenderer
, DefaultListCellRenderer.UIResource
, DefaultTableCellRenderer
, DefaultTableCellRenderer.UIResource
, DefaultTreeCellEditor.DefaultTextField
, DefaultTreeCellEditor.EditorContainer
, DefaultTreeCellRenderer
, Dialog
, FileDialog
, Frame
, JApplet
, JButton
, JCheckBox
, JCheckBoxMenuItem
, JColorChooser
, JComboBox
, JComponent
, JDesktopPane
, JDialog
, JEditorPane
, JFileChooser
, JFormattedTextField
, JFrame
, JInternalFrame
, JInternalFrame.JDesktopIcon
, JLabel
, JLayer
, JLayeredPane
, JList
, JMenu
, JMenuBar
, JMenuItem
, JOptionPane
, JPanel
, JPasswordField
, JPopupMenu
, JPopupMenu.Separator
, JProgressBar
, JRadioButton
, JRadioButtonMenuItem
, JRootPane
, JScrollBar
, JScrollPane
, JScrollPane.ScrollBar
, JSeparator
, JSlider
, JSpinner
, JSpinner.DateEditor
, JSpinner.DefaultEditor
, JSpinner.ListEditor
, JSpinner.NumberEditor
, JSplitPane
, JTabbedPane
, JTable
, JTableHeader
, JTextArea
, JTextComponent
, JTextField
, JTextPane
, JToggleButton
, JToolBar
, JToolBar.Separator
, JToolTip
, JTree
, JViewport
, JWindow
, Label
, List
, MetalComboBoxButton
, MetalComboBoxUI.MetalComboPopup
, MetalFileChooserUI.FileRenderer
, MetalFileChooserUI.FilterComboBoxRenderer
, MetalInternalFrameTitlePane
, MetalScrollButton
, Panel
, Scrollbar
, ScrollPane
, TextArea
, TextComponent
, TextField
, Window
public interface ImageObserver
Modifier and Type | Field | Description |
---|---|---|
static final int |
ABORT |
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously was aborted before production was complete. |
static final int |
ALLBITS |
This flag in the infoflags argument to imageUpdate indicates that a static image which was previously drawn is now complete and can be drawn again in its final form. |
static final int |
ERROR |
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously has encountered an error. |
static final int |
FRAMEBITS |
This flag in the infoflags argument to imageUpdate indicates that another complete frame of a multi-frame image which was previously drawn is now available to be drawn again. |
static final int |
HEIGHT |
This flag in the infoflags argument to imageUpdate indicates that the height of the base image is now available and can be taken from the height argument to the imageUpdate callback method. |
static final int |
PROPERTIES |
This flag in the infoflags argument to imageUpdate indicates that the properties of the image are now available. |
static final int |
SOMEBITS |
This flag in the infoflags argument to imageUpdate indicates that more pixels needed for drawing a scaled variation of the image are available. |
static final int |
WIDTH |
This flag in the infoflags argument to imageUpdate indicates that the width of the base image is now available and can be taken from the width argument to the imageUpdate callback method. |
Modifier and Type | Method | Description |
---|---|---|
boolean |
imageUpdate |
This method is called when information about an image which was previously requested using an asynchronous interface becomes available. |
static final int WIDTH
static final int HEIGHT
static final int PROPERTIES
static final int SOMEBITS
static final int FRAMEBITS
static final int ALLBITS
static final int ERROR
static final int ABORT
boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height)
This method should return true if further updates are needed or false if the required information has been acquired. The image which was being tracked is passed in using the img argument. Various constants are combined to form the infoflags argument which indicates what information about the image is now available. The interpretation of the x, y, width, and height arguments depends on the contents of the infoflags argument.
The infoflags
argument should be the bitwise inclusive OR of the following flags: WIDTH
, HEIGHT
, PROPERTIES
, SOMEBITS
, FRAMEBITS
, ALLBITS
, ERROR
, ABORT
.
img
- the image being observed.infoflags
- the bitwise inclusive OR of the following flags: WIDTH
, HEIGHT
, PROPERTIES
, SOMEBITS
, FRAMEBITS
, ALLBITS
, ERROR
, ABORT
.x
- the x coordinate.y
- the y coordinate.width
- the width.height
- the height.false
if the infoflags indicate that the image is completely loaded; true
otherwise.
© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/image/ImageObserver.html