netDxf/Entities/HatchGradientPattern.cs

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#region netDxf, Copyright(C) 2014 Daniel Carvajal, Licensed under LGPL.

//                        netDxf library
// Copyright (C) 2014 Daniel Carvajal (haplokuon@gmail.com)
// 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 

#endregion

using System;

namespace netDxf.Entities
{
    /// <summary>
    /// Represents the hatch gradient pattern style.
    /// </summary>
    /// <remarks>
    /// Grandient patterns are only supported by AutoCad2004 and higher dxf versions. It will default to a solid pattern if saved as AutoCad2000.
    /// </remarks>
    public class HatchGradientPattern :
        HatchPattern
    {
        #region private fields

        private HatchGradientPatternType gradientType;
        private AciColor color1;
        private AciColor color2;
        private bool singleColor;
        private double tint;
        private bool centered;

        #endregion

        #region constructors

        /// <summary>
        /// Initializes a new instance of the <c>HatchGradientPattern</c> class as a default linear gradient. 
        /// </summary>
        /// <param name="description">Description of the pattern (optional, this information is not saved in the dxf file). By default it will use the supplied name.</param>
        public HatchGradientPattern(string description = null)
            : base("SOLID", description)
        {
            this.color1 = AciColor.Blue;
            this.color2 = AciColor.Yellow;
            this.singleColor = false;
            this.gradientType = HatchGradientPatternType.Linear;
            this.tint = 1.0;