core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/ui/util/PixelConverter.java

/*******************************************************************************
 * Copyright (c) 2000, 2007 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 
 *******************************************************************************/
package org.eclipse.dltk.ui.util;

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 FontMetrics fFontMetrics;

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