Module java.desktop

Package java.awt

Class Canvas.AccessibleAWTCanvas

java.lang.Object

javax.accessibility.AccessibleContext

java.awt.Component.AccessibleAWTComponent

java.awt.Canvas.AccessibleAWTCanvas

所有已实现的接口:

Serializable, AccessibleComponent

封装类:

Canvas

       protected class Canvas.AccessibleAWTCanvas extends Component.AccessibleAWTComponent
      

该类实现了对Canvas类的辅助功能支持。它提供了适用于画布用户界面元素的Java辅助功能API的实现。

自版本:

1.3

参见:

• 序列化形式

Nested Class Summary

Nested classes/interfaces declared in class java.awt.Component.AccessibleAWTComponent

Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

Field Summary

Fields declared in class java.awt.Component.AccessibleAWTComponent

accessibleAWTComponentHandler, accessibleAWTFocusHandler

Fields declared in class javax.accessibility.AccessibleContext

ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AccessibleAWTCanvas()	构造一个AccessibleAWTCanvas。

Method Summary

Modifier and Type	Method	Description
AccessibleRole	getAccessibleRole()	获取此对象的角色。

Methods declared in class java.awt.Component.AccessibleAWTComponent

addFocusListener, addPropertyChangeListener, contains, getAccessibleAt, getAccessibleChild, getAccessibleChildrenCount, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleName, getAccessibleParent, getAccessibleStateSet, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, removePropertyChangeListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

Methods declared in class javax.accessibility.AccessibleContext

firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AccessibleAWTCanvas

             protected AccessibleAWTCanvas()
            

构造一个AccessibleAWTCanvas。

Method Details

getAccessibleRole

             public AccessibleRole getAccessibleRole()
            

获取此对象的角色。

覆盖:

getAccessibleRole 在类 Component.AccessibleAWTComponent

返回:

描述对象角色的AccessibleRole实例

参见:

• AccessibleRole