package org.erlide.ui.editors.erl;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.source.IOverviewRuler;
import org.eclipse.jface.text.source.IVerticalRuler;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.jface.text.source.projection.ProjectionViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.editors.text.EditorsUI;
import org.eclipse.ui.texteditor.ChainedPreferenceStore;
import org.erlide.ui.prefs.PreferenceConstants;
import org.erlide.ui.prefs.TokenHighlight;
import org.erlide.ui.prefs.plugin.internal.ErlangSourceViewerUpdater;
import org.erlide.ui.util.IColorManager;
import org.erlide.util.IDisposable;
public class ErlangSourceViewer extends ProjectionViewer implements IDisposable {
private ErlangBracketInserter fBracketInserter = null;
public ErlangSourceViewer(final Composite parent, final IVerticalRuler ruler,
final IOverviewRuler overviewRuler, final boolean showsAnnotationOverview,
final int styles, final IBracketInserterValidator validator) {
super(parent, ruler, overviewRuler, showsAnnotationOverview, styles);
fBracketInserter = new ErlangBracketInserter(this);
if (validator != null) {
fBracketInserter.setValidator(validator);
}
}
@Override
public void configure(final SourceViewerConfiguration configuration) {
super.configure(configuration);
fBracketInserter.configure();
}
@Override
public void dispose() {
fBracketInserter.unconfigure();
}
public void setBracketInserterValidator(final IBracketInserterValidator validator) {
fBracketInserter.setValidator(validator);
}
public static SourceViewer createErlangPreviewer(final Composite parent,
final IColorManager colorManager0, final IPreferenceStore topStore,
final List<TokenHighlight> colors0, final String content) {
// TODO we should move this method, to a utility class (or maybe create
// an ErlangPreviewSourceViewer class)
final IColorManager colorManager = colorManager0 != null ? colorManager0
: new ColorManager();
List<TokenHighlight> colors;
if (colors0 == null) {
colors = new ArrayList<TokenHighlight>();
for (final TokenHighlight th : TokenHighlight.values()) {
colors.add(th);
}
} else {
colors = colors0;
}
final IPreferenceStore generalTextStore = EditorsUI.getPreferenceStore();
final IPreferenceStore store = topStore == null ? new ChainedPreferenceStore(
new IPreferenceStore[] { generalTextStore })
: new ChainedPreferenceStore(new IPreferenceStore[] { topStore,
generalTextStore });
final SourceViewer viewer = new SourceViewer(parent, null, null, false,
SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
final IDocument document = new Document(content);
viewer.setDocument(document);
final ErlangDocumentSetupParticipant setupParticipant = new ErlangDocumentSetupParticipant();
setupParticipant.setup(document);
final ErlangSourceViewerConfiguration configuration = new SyntaxColorPreviewEditorConfiguration(
store, colorManager, colors);
viewer.configure(configuration);
final Font font = JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT);
viewer.getTextWidget().setFont(font);
new ErlangSourceViewerUpdater(viewer, configuration, store);
viewer.setEditable(false);
final Cursor arrowCursor = viewer.getTextWidget().getDisplay()
.getSystemCursor(SWT.CURSOR_ARROW);
viewer.getTextWidget().setCursor(arrowCursor);
return viewer;
}
}