SwtUtils.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.ide.eclipse.gltrace;

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

public class SwtUtils {
    /** Minimum Character width in pixels. */
    private static final int MIN_CHAR_WIDTH = 10;

    /** Returns the font width if it is greater than {@link #MIN_CHAR_WIDTH}. */
    public static int getApproximateFontWidth(Control c) {
        GC gc = new GC(c);
        int avgCharWidth = gc.getFontMetrics().getAverageCharWidth();
        gc.dispose();
        return Math.max(avgCharWidth, MIN_CHAR_WIDTH);
    }
}