core/plugins/org.eclipse.dltk.testing/src/org/eclipse/dltk/internal/testing/util/PixelConverter.java

/*******************************************************************************
 * Copyright (c) 2000, 2005 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
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.dltk.internal.testing.util;

import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Control;

import org.eclipse.jface.dialogs.Dialog;

/*
 * class copied from jdt ui
 */
public class PixelConverter {
	
	private FontMetrics fFontMetrics;
	
	public PixelConverter(Control control) {
		GC gc = new GC(control);
		gc.setFont(control.getFont());
		fFontMetrics= gc.getFontMetrics();
		gc.dispose();
	}
	
	/**
	 * @see org.eclipse.jface.dialogs.DialogPage#convertHeightInCharsToPixels(int)
	 */
	public int convertHeightInCharsToPixels(int chars) {
		return Dialog.convertHeightInCharsToPixels(fFontMetrics, chars);
	}

	/**
	 * @see org.eclipse.jface.dialogs.DialogPage#convertHorizontalDLUsToPixels(int)
	 */
	public int convertHorizontalDLUsToPixels(int dlus) {
		return Dialog.convertHorizontalDLUsToPixels(fFontMetrics, dlus);
	}

	/**
	 * @see org.eclipse.jface.dialogs.DialogPage#convertVerticalDLUsToPixels(int)
	 */
	public int convertVerticalDLUsToPixels(int dlus) {
		return Dialog.convertVerticalDLUsToPixels(fFontMetrics, dlus);
	}
	
	/**
	 * @see org.eclipse.jface.dialogs.DialogPage#convertWidthInCharsToPixels(int)
	 */
	public int convertWidthInCharsToPixels(int chars) {
		return Dialog.convertWidthInCharsToPixels(fFontMetrics, chars);
	}	

}