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The Java Developers Almanac 1.4 |
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e1010. Listing the Attributes in a StyleThe way to retrieve the attributes in a style is to enumerate all the attribute names in the style and then use the specific attribute name to retrieve its value. The attribute name can be either a string or an object of typeStyleConstants.
// To retrieve a style from a text pane, see
// e1009 Listing the Styles Associated with a JTextPane
// Get number of attributes
int count = style.getAttributeCount();
// Get enumeration of attribute names; an attribute name can be
// either a string or a StyleConstants object
Enumeration enum = style.getAttributeNames();
while (enum.hasMoreElements()) {
Object o = enum.nextElement();
if (o instanceof String) {
String attrName = (String)o;
Object attrValue = style.getAttribute(attrName);
} else if (o == StyleConstants.NameAttribute) {
// Retrieve the style's name
String styleName = (String)style.getAttribute(o);
} else if (o == StyleConstants.ResolveAttribute) {
// Retrieve the style's parent
Style parent = (Style)style.getAttribute(o);
} else {
// Retrieve the style constant name and value
String attrName = o.toString();
Object attrValue = style.getAttribute(o);
}
}
e1007. Setting the Font and Color of Text in a JTextPane Using Styles e1008. Sharing Styles Between JTextPanes e1009. Listing the Styles Associated with a JTextPane e1011. Using a Popup to Apply Styles to a JTextPane e1012. Retaining the Logical Style When Setting a New Paragraph Style e1013. Automatically Updating Styled Text When a Style Is Updated e1014. Determining If a Style Attribute Applies to a Character or the Paragraph
© 2002 Addison-Wesley. |