Package java.awt
See: Description
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Interface Summary Interface Description ActiveEvent An interface for events that know how to dispatch themselves.Adjustable The interface for objects which have an adjustable numeric value contained within a bounded range of values.Composite TheComposite
interface, along withCompositeContext
, defines the methods to compose a draw primitive with the underlying graphics area.CompositeContext TheCompositeContext
interface defines the encapsulated and optimized environment for a compositing operation.ItemSelectable The interface for objects which contain a set of items for which zero or more can be selected.KeyEventDispatcher A KeyEventDispatcher cooperates with the current KeyboardFocusManager in the targeting and dispatching of all KeyEvents.KeyEventPostProcessor A KeyEventPostProcessor cooperates with the current KeyboardFocusManager in the final resolution of all unconsumed KeyEvents.LayoutManager Defines the interface for classes that know how to lay outContainer
s.LayoutManager2 Defines an interface for classes that know how to layout Containers based on a layout constraints object.MenuContainer The super class of all menu related containers.Paint ThisPaint
interface defines how color patterns can be generated forGraphics2D
operations.PaintContext ThePaintContext
interface defines the encapsulated and optimized environment to generate color patterns in device space for fill or stroke operations on aGraphics2D
.PrintGraphics An abstract class which provides a print graphics context for a page.SecondaryLoop A helper interface to run the nested event loop.Shape TheShape
interface provides definitions for objects that represent some form of geometric shape.Stroke TheStroke
interface allows aGraphics2D
object to obtain aShape
that is the decorated outline, or stylistic representation of the outline, of the specifiedShape
.Transparency TheTransparency
interface defines the common transparency modes for implementing classes. -
Class Summary Class Description AlphaComposite TheAlphaComposite
class implements basic alpha compositing rules for combining source and destination colors to achieve blending and transparency effects with graphics and images.AWTEvent The root event class for all AWT events.AWTEventMulticaster AWTEventMulticaster
implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in thejava.awt.event
package.AWTKeyStroke AnAWTKeyStroke
represents a key action on the keyboard, or equivalent input device.AWTPermission This class is for AWT permissions.BasicStroke TheBasicStroke
class defines a basic set of rendering attributes for the outlines of graphics primitives, which are rendered with aGraphics2D
object that has its Stroke attribute set to thisBasicStroke
.BorderLayout A border layout lays out a container, arranging and resizing its components to fit in five regions: north, south, east, west, and center.BufferCapabilities Capabilities and properties of buffers.BufferCapabilities.FlipContents A type-safe enumeration of the possible back buffer contents after page-flippingButton This class creates a labeled button.Canvas ACanvas
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.CardLayout ACardLayout
object is a layout manager for a container.Checkbox A check box is a graphical component that can be in either an "on" (true
) or "off" (false
) state.CheckboxGroup TheCheckboxGroup
class is used to group together a set ofCheckbox
buttons.CheckboxMenuItem This class represents a check box that can be included in a menu.Choice TheChoice
class presents a pop-up menu of choices.Color TheColor
class is used to encapsulate colors in the default sRGB color space or colors in arbitrary color spaces identified by aColorSpace
.Component A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.ComponentOrientation The ComponentOrientation class encapsulates the language-sensitive orientation that is to be used to order the elements of a component or of text.Container A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.ContainerOrderFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.Cursor A class to encapsulate the bitmap representation of the mouse cursor.DefaultFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.DefaultKeyboardFocusManager The default KeyboardFocusManager for AWT applications.Desktop TheDesktop
class allows a Java application to launch associated applications registered on the native desktop to handle aURI
or a file.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.Dimension TheDimension
class encapsulates the width and height of a component (in integer precision) in a single object.DisplayMode TheDisplayMode
class encapsulates the bit depth, height, width, and refresh rate of aGraphicsDevice
.Event NOTE: TheEvent
class is obsolete and is available only for backwards compatilibility.EventQueue EventQueue
is a platform-independent class that queues events, both from the underlying peer classes and from trusted application classes.FileDialog TheFileDialog
class displays a dialog window from which the user can select a file.FlowLayout A flow layout arranges components in a directional flow, much like lines of text in a paragraph.FocusTraversalPolicy A FocusTraversalPolicy defines the order in which Components with a particular focus cycle root are traversed.Font TheFont
class represents fonts, which are used to render text in a visible way.FontMetrics TheFontMetrics
class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.Frame AFrame
is a top-level window with a title and a border.GradientPaint TheGradientPaint
class provides a way to fill aShape
with a linear color gradient pattern.Graphics TheGraphics
class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images.Graphics2D ThisGraphics2D
class extends theGraphics
class to provide more sophisticated control over geometry, coordinate transformations, color management, and text layout.GraphicsConfigTemplate TheGraphicsConfigTemplate
class is used to obtain a validGraphicsConfiguration
.GraphicsConfiguration TheGraphicsConfiguration
class describes the characteristics of a graphics destination such as a printer or monitor.GraphicsDevice TheGraphicsDevice
class describes the graphics devices that might be available in a particular graphics environment.GraphicsEnvironment TheGraphicsEnvironment
class describes the collection ofGraphicsDevice
objects andFont
objects available to a Java(tm) application on a particular platform.GridBagConstraints TheGridBagConstraints
class specifies constraints for components that are laid out using theGridBagLayout
class.GridBagLayout TheGridBagLayout
class is a flexible layout manager that aligns components vertically, horizontally or along their baseline without requiring that the components be of the same size.GridBagLayoutInfo TheGridBagLayoutInfo
is an utility class forGridBagLayout
layout manager.GridLayout TheGridLayout
class is a layout manager that lays out a container's components in a rectangular grid.Image The abstract classImage
is the superclass of all classes that represent graphical images.ImageCapabilities Capabilities and properties of images.Insets AnInsets
object is a representation of the borders of a container.JobAttributes A set of attributes which control a print job.JobAttributes.DefaultSelectionType A type-safe enumeration of possible default selection states.JobAttributes.DestinationType A type-safe enumeration of possible job destinations.JobAttributes.DialogType A type-safe enumeration of possible dialogs to display to the user.JobAttributes.MultipleDocumentHandlingType A type-safe enumeration of possible multiple copy handling states.JobAttributes.SidesType A type-safe enumeration of possible multi-page impositions.KeyboardFocusManager The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner.Label ALabel
object is a component for placing text in a container.LinearGradientPaint TheLinearGradientPaint
class provides a way to fill aShape
with a linear color gradient pattern.List TheList
component presents the user with a scrolling list of text items.MediaTracker TheMediaTracker
class is a utility class to track the status of a number of media objects.Menu AMenu
object is a pull-down menu component that is deployed from a menu bar.MenuBar TheMenuBar
class encapsulates the platform's concept of a menu bar bound to a frame.MenuComponent The abstract classMenuComponent
is the superclass of all menu-related components.MenuItem All items in a menu must belong to the classMenuItem
, or one of its subclasses.MenuShortcut TheMenuShortcut
class represents a keyboard accelerator for a MenuItem.MouseInfo MouseInfo
provides methods for getting information about the mouse, such as mouse pointer location and the number of mouse buttons.MultipleGradientPaint This is the superclass for Paints which use a multiple color gradient to fill in their raster.PageAttributes A set of attributes which control the output of a printed page.PageAttributes.ColorType A type-safe enumeration of possible color states.PageAttributes.MediaType A type-safe enumeration of possible paper sizes.PageAttributes.OrientationRequestedType A type-safe enumeration of possible orientations.PageAttributes.OriginType A type-safe enumeration of possible origins.PageAttributes.PrintQualityType A type-safe enumeration of possible print qualities.Panel Panel
is the simplest container class.Point A point representing a location in(x,y)
coordinate space, specified in integer precision.PointerInfo A class that describes the pointer position.Polygon ThePolygon
class encapsulates a description of a closed, two-dimensional region within a coordinate space.PopupMenu A class that implements a menu which can be dynamically popped up at a specified position within a component.PrintJob An abstract class which initiates and executes a print job.RadialGradientPaint TheRadialGradientPaint
class provides a way to fill a shape with a circular radial color gradient pattern.Rectangle ARectangle
specifies an area in a coordinate space that is enclosed by theRectangle
object's upper-left point(x,y)
in the coordinate space, its width, and its height.RenderingHints TheRenderingHints
class defines and manages collections of keys and associated values which allow an application to provide input into the choice of algorithms used by other classes which perform rendering and image manipulation services.RenderingHints.Key Defines the base type of all keys used along with theRenderingHints
class to control various algorithm choices in the rendering and imaging pipelines.Robot This class is used to generate native system input events for the purposes of test automation, self-running demos, and other applications where control of the mouse and keyboard is needed.Scrollbar TheScrollbar
class embodies a scroll bar, a familiar user-interface object.ScrollPane A container class which implements automatic horizontal and/or vertical scrolling for a single child component.ScrollPaneAdjustable This class represents the state of a horizontal or vertical scrollbar of aScrollPane
.SplashScreen The splash screen can be displayed at application startup, before the Java Virtual Machine (JVM) starts.SystemColor A class to encapsulate symbolic colors representing the color of native GUI objects on a system.SystemTray TheSystemTray
class represents the system tray for a desktop.TextArea ATextArea
object is a multi-line region that displays text.TextComponent TheTextComponent
class is the superclass of any component that allows the editing of some text.TextField ATextField
object is a text component that allows for the editing of a single line of text.TexturePaint TheTexturePaint
class provides a way to fill aShape
with a texture that is specified as aBufferedImage
.Toolkit This class is the abstract superclass of all actual implementations of the Abstract Window Toolkit.TrayIcon ATrayIcon
object represents a tray icon that can be added to thesystem tray
.Window AWindow
object is a top-level window with no borders and no menubar. -
Enum Summary Enum Description Component.BaselineResizeBehavior Enumeration of the common ways the baseline of a component can change as the size changes.Desktop.Action Represents an action type.Dialog.ModalExclusionType Any top-level window can be marked not to be blocked by modal dialogs.Dialog.ModalityType Modal dialogs block all input to some top-level windows.GraphicsDevice.WindowTranslucency Kinds of translucency supported by the underlying system.MultipleGradientPaint.ColorSpaceType The color space in which to perform the gradient interpolation.MultipleGradientPaint.CycleMethod The method to use when painting outside the gradient bounds.TrayIcon.MessageType The message type determines which icon will be displayed in the caption of the message, and a possible system sound a message may generate upon showing.Window.Type Enumeration of available window types. -
Exception Summary Exception Description AWTException Signals that an Absract Window Toolkit exception has occurred.FontFormatException Thrown by method createFont in theFont
class to indicate that the specified font is bad.HeadlessException Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.IllegalComponentStateException Signals that an AWT component is not in an appropriate state for the requested operation. -
Error Summary Error Description AWTError Thrown when a serious Abstract Window Toolkit error has occurred.
Description
Some components fire events when a user interacts with the components. The AWTEvent class and its subclasses are used to represent the events that AWT components can fire. See AWTEvent for a description of the AWT event model.
A container is a component that can contain components and other containers. A con tainer can also have a layout manager that controls the visual placement of components in the container. The AWT package contains several layout manager classes and an interface for building your own layout manager. See Container and LayoutManager for more information.
Each Component
object is limited in its maximum size and
its location because the values are stored as an integer.
Also, a platform may further restrict maximum size and location
coordinates. The exact maximum values are dependent on the platform.
There is no way to change these maximum values, either in Java
code or in native code.
These limitations also impose restrictions on component layout.
If the bounds of a Component object exceed a platform limit,
there is no way to properly arrange them within a Container object.
The object's bounds are defined by any object's coordinate
in combination with its size on a respective axis.
Additional Specification
- Since:
- JDK1.0