Opentk/Source/Compatibility/Graphics/TextExtents.cs

136 lines
3.8 KiB
C#

#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2008 the Open Toolkit library, except where noted.
//
// 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;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
namespace OpenTK.Graphics
{
/// <summary>
/// Holds the results of a text measurement.
/// </summary>
public class TextExtents : IDisposable
{
#region Fields
protected RectangleF text_extents;
protected List<RectangleF> glyph_extents = new List<RectangleF>();
public static readonly TextExtents Empty = new TextExtents();
#endregion
#region Constructors
internal TextExtents()
{
}
#endregion
#region Public Members
/// <summary>
/// Gets the bounding box of the measured text.
/// </summary>
public RectangleF BoundingBox
{
get { return text_extents; }
internal set { text_extents = value; }
}
/// <summary>
/// Gets the extents of each glyph in the measured text.
/// </summary>
/// <param name="i">The index of the glyph.</param>
/// <returns>The extents of the specified glyph.</returns>
public RectangleF this[int i]
{
get { return glyph_extents[i]; }
internal set { glyph_extents[i] = value; }
}
/// <summary>
/// Gets the extents of each glyph in the measured text.
/// </summary>
public IEnumerable<RectangleF> GlyphExtents
{
get { return (IEnumerable<RectangleF>)glyph_extents; }
}
/// <summary>
/// Gets the number of the measured glyphs.
/// </summary>
public int Count
{
get { return glyph_extents.Count; }
}
#endregion
#region Internal Members
internal void Add(RectangleF glyphExtent)
{
glyph_extents.Add(glyphExtent);
}
internal void AddRange(IEnumerable<RectangleF> glyphExtents)
{
glyph_extents.AddRange(glyphExtents);
}
internal void Clear()
{
BoundingBox = RectangleF.Empty;
glyph_extents.Clear();
}
internal TextExtents Clone()
{
TextExtents extents = new TextExtents();
extents.glyph_extents.AddRange(GlyphExtents);
extents.BoundingBox = BoundingBox;
return extents;
}
#endregion
#region IDisposable Members
/// <summary>
/// Frees the resources consumed by this TextExtents instance.
/// </summary>
public virtual void Dispose()
{
}
#endregion
}
}