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/*******************************************************************************
* Copyright (c) 2000, 2010 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search.internal.ui.text;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.widgets.Display;
import org.eclipse.jface.preference.JFacePreferences;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.DecoratingStyledCellLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.StyledString.Styler;
import org.eclipse.jface.viewers.ViewerColumn;
import org.eclipse.ui.IWorkbenchPreferenceConstants;
import org.eclipse.ui.PlatformUI;
public class DecoratingFileSearchLabelProvider extends DecoratingStyledCellLabelProvider implements IPropertyChangeListener, ILabelProvider {
private static final String HIGHLIGHT_BG_COLOR_NAME= "org.eclipse.search.ui.match.highlight"; //$NON-NLS-1$
public static final Styler HIGHLIGHT_STYLE= StyledString.createColorRegistryStyler(null, HIGHLIGHT_BG_COLOR_NAME);
public DecoratingFileSearchLabelProvider(FileLabelProvider provider) {
super(provider, PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator(), null);
}
@Override
public void initialize(ColumnViewer viewer, ViewerColumn column) {
PlatformUI.getPreferenceStore().addPropertyChangeListener(this);
JFaceResources.getColorRegistry().addListener(this);
setOwnerDrawEnabled(showColoredLabels());
super.initialize(viewer, column);
}
@Override
public void dispose() {
super.dispose();
PlatformUI.getPreferenceStore().removePropertyChangeListener(this);
JFaceResources.getColorRegistry().removeListener(this);
}
private void refresh() {
ColumnViewer viewer= getViewer();
if (viewer == null) {
return;
}
boolean showColoredLabels= showColoredLabels();
if (showColoredLabels != isOwnerDrawEnabled()) {
setOwnerDrawEnabled(showColoredLabels);
viewer.refresh();
} else if (showColoredLabels) {
viewer.refresh();
}
}
@Override
protected StyleRange prepareStyleRange(StyleRange styleRange, boolean applyColors) {
if (!applyColors && styleRange.background != null) {
styleRange= super.prepareStyleRange(styleRange, applyColors);
styleRange.borderStyle= SWT.BORDER_DOT;
return styleRange;
}
return super.prepareStyleRange(styleRange, applyColors);
}
public static boolean showColoredLabels() {
return PlatformUI.getPreferenceStore().getBoolean(IWorkbenchPreferenceConstants.USE_COLORED_LABELS);
}
@Override
public void propertyChange(PropertyChangeEvent event) {
String property= event.getProperty();
if (property.equals(JFacePreferences.QUALIFIER_COLOR) || property.equals(JFacePreferences.COUNTER_COLOR) || property.equals(JFacePreferences.DECORATIONS_COLOR)
|| property.equals(HIGHLIGHT_BG_COLOR_NAME) || property.equals(IWorkbenchPreferenceConstants.USE_COLORED_LABELS)) {
Display.getDefault().asyncExec(this::refresh);
}
}
@Override
public String getText(Object element) {
return getStyledText(element).getString();
}
}
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