bundles/org.eclipse.jsch.ui/src/org/eclipse/jsch/internal/ui/preference/PixelConverter.java

/*******************************************************************************
 * Copyright (c) 2000, 2007 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation.
 *     Atsuhiko Yamanaka, JCraft,Inc. - Bug 170883
 *******************************************************************************/
package org.eclipse.jsch.internal.ui.preference;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Control;

public class PixelConverter {

	private final FontMetrics fFontMetrics;

	public PixelConverter(Control control) {
		GC gc = new GC(control);
        try {
            gc.setFont(control.getFont());
            fFontMetrics= gc.getFontMetrics();
        } finally {
            gc.dispose();
        }
	}

	public int convertHeightInCharsToPixels(int chars) {
		return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
	}

	public int convertHorizontalDLUsToPixels(int dlus) {
		return Dialog.convertHorizontalDLUsToPixels(fFontMetrics, dlus);
	}

	public int convertVerticalDLUsToPixels(int dlus) {
		return Dialog.convertVerticalDLUsToPixels(fFontMetrics, dlus);
	}

	public int convertWidthInCharsToPixels(int chars) {
		return Dialog.convertWidthInCharsToPixels(fFontMetrics, chars);
	}
}