sources/Google.Solutions.Mvvm/Drawing/FontExtensions.cs

//
// Copyright 2020 Google LLC
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.
//

using System.Drawing;

namespace Google.Solutions.Mvvm.Drawing
{
    public static class FontExtensions
    {
        public static bool IsMonospaced(this Font font)
        {
            using (var scratchBitmap = new Bitmap(100, 100))
            using (var scratchGraphics = Graphics.FromImage(scratchBitmap))
            {
                //
                // Somewhat hacky, but Winforms/GDI+ does not provide
                // a straightforward way to check of a font is monospaced
                // or not.
                //
                return scratchGraphics.MeasureString("iii", font).Width
                    == scratchGraphics.MeasureString("WWW", font).Width;
            }
        }
    }
}