mysourceviewerconfig.java

这是用SWT写的一个自定义编辑器的一个小离子

package edit4.Myedit;

import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.contentassist.ContentAssistant;
import org.eclipse.jface.text.contentassist.IContentAssistant;
import org.eclipse.jface.text.presentation.IPresentationReconciler;
import org.eclipse.jface.text.presentation.PresentationReconciler;
import org.eclipse.jface.text.rules.DefaultDamagerRepairer;
import org.eclipse.jface.text.rules.Token;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;

public class MySourceViewerConfig extends SourceViewerConfiguration {
	private MyRuleScanner scanner;
	private static Color DEFAULT_TAG_COLOR =
		new Color(Display.getCurrent(), new RGB(0, 0, 255));

	public MySourceViewerConfig() {

	}

	protected MyRuleScanner getTagScanner() {
		if (scanner == null) {
			scanner = new MyRuleScanner();
			scanner.setDefaultReturnToken(
				new Token(new TextAttribute(DEFAULT_TAG_COLOR)));
		}
		return scanner;
	}

	/**
	 * Define reconciler for MyEditor
	 */
	public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {
		PresentationReconciler reconciler = new PresentationReconciler();
		DefaultDamagerRepairer dr = new DefaultDamagerRepairer(getTagScanner());
		reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
		reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);
		return reconciler;
	}
	
	public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {

		ContentAssistant assistant = new ContentAssistant();
		assistant.setContentAssistProcessor(
			new MyCompletionProcessor(),
			IDocument.DEFAULT_CONTENT_TYPE);

		assistant.enableAutoActivation(true);
		assistant.setAutoActivationDelay(500);
		assistant.setProposalPopupOrientation(
			IContentAssistant.PROPOSAL_OVERLAY);
		return assistant;
	}
}