Java Swing - O Reilly This is where an (Web hosting mysql)
Java Swing - O Reilly This is where an AbstractDocument’s content is actually stored. The StringContent class showed a default implementation of this interface, currently used by all text components. GapContent provides an alternate, more efficient implementation. AbstractDocument.AttributeContext An interface that allows AttributeSets to be managed across multiple documents for efficiency purposes. Next, we’ll finally take a look at a concrete Document implementation called PlainDocument. 20.1.20 The PlainDocument Class PlainDocument is an extension of AbstractDocument used for simple documents that do not need to manage complex formatting styles. The JTextField, JPasswordField, and JTextArea classes use PlainDocument as their default model. It’s worth noting that PlainDocument provides more power than these components typically need. As an extension of AbstractDocument, it supports the use of AttributeSets, allowing the document to contain different fonts, colors, font styles, etc. These attributes are ignored when rendering the simple text components that use this document type. The Elements that make up a PlainDocument correspond to distinct lines of text that end in new line characters (n). Each line of text maps to a single LeafElement. All of these LeafElements are then contained by a single BranchElement (the document’s root element). 20.1.20.1 Property PlainDocument defines a default property value as shown in Table 20.17. The defaultRootElement created by PlainDocument is an AbstractDocument.BranchElement object containing a single empty AbstractDoc-ument.LeafElement child. Table 20.17, PlainDocument Property Property Data Type get is set bound Default Value defaultRootElement* Element AbstractDocument.BranchElement() Constant Type Description See also properties from the AbstractDocument class (Table 20.10) 20.1.20.2 Constants PlainDocument defines the constants shown in Table 20.18. Table 20.18, PlainDocument Constants Constant Type Description The name of the property used to specify the maximum length of a line, if there is lineLimitAttribute String one tabSizeAttribute String The name of the property used to specify the sizefortabs 20.1.20.3 Constructors public PlainDocument() Calls the protected constructor below, passing in a new instance of StringContent. - 643
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