X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/preferences/JavaSourcePreviewerUpdater.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/preferences/JavaSourcePreviewerUpdater.java
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/preferences/JavaSourcePreviewerUpdater.java
@@ -0,0 +1,91 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+package net.sourceforge.phpdt.internal.ui.preferences;
+
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+import net.sourceforge.phpdt.ui.text.PHPSourceViewerConfiguration;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.text.source.SourceViewer;
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.graphics.Font;
+
+/**
+ * Handles Java editor font changes for Java source preview viewers.
+ * 
+ * @since 3.0
+ */
+class JavaSourcePreviewerUpdater {
+
+	/**
+	 * Creates a Java source preview updater for the given viewer, configuration
+	 * and preference store.
+	 * 
+	 * @param viewer
+	 *            the viewer
+	 * @param configuration
+	 *            the configuration
+	 * @param preferenceStore
+	 *            the preference store
+	 */
+	JavaSourcePreviewerUpdater(final SourceViewer viewer,
+			final PHPSourceViewerConfiguration configuration,
+			final IPreferenceStore preferenceStore) {
+		Assert.isNotNull(viewer);
+		Assert.isNotNull(configuration);
+		Assert.isNotNull(preferenceStore);
+		final IPropertyChangeListener fontChangeListener = new IPropertyChangeListener() {
+			/*
+			 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
+			 */
+			public void propertyChange(PropertyChangeEvent event) {
+				if (event.getProperty().equals(
+						PreferenceConstants.EDITOR_TEXT_FONT)) {
+					Font font = JFaceResources
+							.getFont(PreferenceConstants.EDITOR_TEXT_FONT);
+					viewer.getTextWidget().setFont(font);
+				}
+			}
+		};
+		final IPropertyChangeListener propertyChangeListener = new IPropertyChangeListener() {
+			/*
+			 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
+			 */
+			public void propertyChange(PropertyChangeEvent event) {
+				if (configuration.affectsTextPresentation(event)) {
+					configuration.handlePropertyChangeEvent(event);
+					viewer.invalidateTextPresentation();
+				}
+			}
+		};
+		viewer.getTextWidget().addDisposeListener(new DisposeListener() {
+			/*
+			 * @see org.eclipse.swt.events.DisposeListener#widgetDisposed(org.eclipse.swt.events.DisposeEvent)
+			 */
+			public void widgetDisposed(DisposeEvent e) {
+				preferenceStore
+						.removePropertyChangeListener(propertyChangeListener);
+				JFaceResources.getFontRegistry().removeListener(
+						fontChangeListener);
+			}
+		});
+		JFaceResources.getFontRegistry().addListener(fontChangeListener);
+		preferenceStore.addPropertyChangeListener(propertyChangeListener);
+	}
+}