WSHCommon/Common/Library/SharpFont-master/SharpFont/Gasp.cs

#region MIT License
/*Copyright (c) 2012 Robert Rouhani <robert.rouhani@gmail.com>

SharpFont based on Tao.FreeType, Copyright (c) 2003-2007 Tao Framework Team

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

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 SharpFont
{
	/// <summary>
	/// A list of values and/or bit-flags returned by the FT_Get_Gasp function.
	/// </summary>
	/// <remarks><para>
	/// The bit-flags <see cref="Gasp.DoGridfit"/> and <see cref="Gasp.DoGray"/> are to be used for standard font
	/// rasterization only. Independently of that, <see cref="Gasp.SymmetricSmoothing"/> and
	/// <see cref="Gasp.SymmetricGridfit"/> are to be used if ClearType is enabled (and <see cref="Gasp.DoGridfit"/>
	/// and <see cref="Gasp.DoGray"/> are consequently ignored).
	/// </para><para>
	/// ‘ClearType’ is Microsoft's implementation of LCD rendering, partly protected by patents.
	/// </para></remarks>
	[Flags]
	public enum Gasp
	{
		/// <summary>
		/// This special value means that there is no GASP table in this face. It is up to the client to decide what to
		/// do.
		/// </summary>
		NoTable = -1,

		/// <summary>
		/// Grid-fitting and hinting should be performed at the specified ppem. This really means TrueType bytecode
		/// interpretation. If this bit is not set, no hinting gets applied.
		/// </summary>
		DoGridfit = 0x01,

		/// <summary>
		/// Anti-aliased rendering should be performed at the specified ppem. If not set, do monochrome rendering.
		/// </summary>
		DoGray = 0x02,

		/// <summary>
		/// If set, smoothing along multiple axes must be used with ClearType.
		/// </summary>
		SymmetricSmoothing = 0x08,

		/// <summary>
		/// Grid-fitting must be used with ClearType's symmetric smoothing.
		/// </summary>
		SymmetricGridfit = 0x10
	}
}