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// LineRenderer.java
package renderkits.renderkit.svg;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import java.util.logging.Level;
/**
* <B>LineRenderer</B> is a class that renders an <code>SVG</code>
* Line.
*/
public class LineRenderer extends BaseRenderer {
//
// Protected Constants
//
//
// Class Variables
//
//
// Instance Variables
//
// Attribute Instance Variables
// Relationship Instance Variables
//
// Constructors and Initializers
//
//
// Class methods
//
//
// General Methods
//
//
// Methods From Renderer
//
public void decode(FacesContext context, UIComponent component) {
if (context == null || component == null) {
// PENDING - i18n
throw new NullPointerException("'context' and/or 'component is null");
}
}
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
// PENDING - i18n
throw new NullPointerException(
"'context' and/or 'component' is null");
}
if (logger.isLoggable(Level.FINER)) {
logger.log(Level.FINER, "Begin encoding component " +
component.getId());
}
// suppress rendering if "rendered" property on the component is
// false.
if (!component.isRendered()) {
if (logger.isLoggable(Level.FINER)) {
logger.log(Level.FINER, "End encoding component "
+
component.getId()
+ " since rendered attribute "
+
"is set to false ");
}
return;
}
ResponseWriter writer = context.getResponseWriter();
writer.startElement("line", component);
writeIdAttributeIfNecessary(context, writer, component);
String x1 = (String) component.getAttributes().get("x1");
if (x1 != null) {
writer.writeAttribute("x1", x1, "x1");
}
String y1 = (String) component.getAttributes().get("y1");
if (y1 != null) {
writer.writeAttribute("y1", y1, "y1");
}
String x2 = (String) component.getAttributes().get("x2");
if (x2 != null) {
writer.writeAttribute("x2", x2, "x2");
}
String y2 = (String) component.getAttributes().get("y2");
if (y2 != null) {
writer.writeAttribute("y2", y2, "y2");
}
String style = (String) component.getAttributes().get("style");
if (style != null) {
writer.writeAttribute("style", style, "style");
}
writer.writeText("\n ", null);
}
public void encodeEnd(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
// PENDING - i18n
throw new NullPointerException(
"'context' and/or 'component' is null");
}
ResponseWriter writer = context.getResponseWriter();
writer.endElement("line");
writer.writeText("\n", null);
}
//
// General Methods
//
} // end of class LineRenderer