org.eclipse.papyrus.infra.gmfdiag.widgets.editors.FontEditor.java Source code

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Here is the source code for org.eclipse.papyrus.infra.gmfdiag.widgets.editors.FontEditor.java

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/*****************************************************************************
 * Copyright (c) 2011 CEA LIST.
 *    
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
 *****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.widgets.editors;

import java.text.Collator;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Set;

import org.eclipse.jface.databinding.swt.WidgetProperties;
import org.eclipse.papyrus.infra.widgets.editors.AbstractValueEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Composite;

public class FontEditor extends AbstractValueEditor {

    private CCombo fontCombo;

    public FontEditor(Composite parent, int style) {
        super(parent, style);
        fontCombo = factory.createCCombo(this, style | SWT.READ_ONLY | SWT.BORDER);
        fontCombo.setLayoutData(getDefaultLayoutData());
        // fontCombo.setEditable(false);

        FontData[] fontDatas = getDisplay().getFontList(null, true);

        Arrays.sort(fontDatas, new Comparator<FontData>() {

            public int compare(FontData font1, FontData font2) {
                return Collator.getInstance().compare(font1.getName(), font2.getName());
            }

        });

        Set<String> fonts = new HashSet<String>();
        for (FontData data : fontDatas) {
            if (data.getName() != null) {
                if (fonts.add(data.getName())) {
                    fontCombo.add(data.getName());
                }
            }
        }

        setWidgetObservable(WidgetProperties.selection().observe(fontCombo));
    }

    @Override
    public String getValue() {
        int index = fontCombo.getSelectionIndex();
        return fontCombo.getItem(index);
    }

    @Override
    public Object getEditableType() {
        return String.class;
    }

    @Override
    public void setReadOnly(boolean readOnly) {
        fontCombo.setEnabled(!readOnly);
    }

    @Override
    public boolean isReadOnly() {
        return !fontCombo.isEnabled();
    }

    @Override
    public void setToolTipText(String text) {
        setLabelToolTipText(text);
        fontCombo.setToolTipText(text);
    }

}