169 lines
6.7 KiB
C#
169 lines
6.7 KiB
C#
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#region PDFsharp - A .NET library for processing PDF
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//
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// Authors:
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// Klaus Potzesny
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//
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// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
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//
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// http://www.pdfsharp.com
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// http://sourceforge.net/projects/pdfsharp
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#endregion
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namespace PdfSharp.Drawing.BarCodes
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{
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/// <summary>
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/// Represents the base class of all codes.
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/// </summary>
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public abstract class CodeBase
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="CodeBase"/> class.
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/// </summary>
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public CodeBase(string text, XSize size, CodeDirection direction)
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{
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_text = text;
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_size = size;
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_direction = direction;
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}
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//public static CodeBase FromType(CodeType type, string text, XSize size, CodeDirection direction)
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//{
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// switch (type)
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// {
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// case CodeType.Code2of5Interleaved:
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// return new Code2of5Interleaved(text, size, direction);
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// case CodeType.Code3of9Standard:
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// return new Code3of9Standard(text, size, direction);
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// default:
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// throw new InvalidEnumArgumentException("type", (int)type, typeof(CodeType));
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// }
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//}
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//public static CodeBase FromType(CodeType type, string text, XSize size)
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//{
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// return FromType(type, text, size, CodeDirection.LeftToRight);
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//}
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//public static CodeBase FromType(CodeType type, string text)
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//{
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// return FromType(type, text, XSize.Empty, CodeDirection.LeftToRight);
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//}
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//public static CodeBase FromType(CodeType type)
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//{
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// return FromType(type, String.Empty, XSize.Empty, CodeDirection.LeftToRight);
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//}
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/// <summary>
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/// Gets or sets the size.
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/// </summary>
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public XSize Size
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{
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get { return _size; }
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set { _size = value; }
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}
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XSize _size;
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/// <summary>
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/// Gets or sets the text the bar code shall represent.
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/// </summary>
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public string Text
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{
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get { return _text; }
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set
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{
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CheckCode(value);
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_text = value;
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}
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}
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string _text;
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/// <summary>
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/// Always MiddleCenter.
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/// </summary>
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public AnchorType Anchor
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{
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get { return _anchor; }
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set { _anchor = value; }
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}
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AnchorType _anchor;
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/// <summary>
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/// Gets or sets the drawing direction.
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/// </summary>
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public CodeDirection Direction
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{
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get { return _direction; }
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set { _direction = value; }
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}
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CodeDirection _direction;
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/// <summary>
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/// When implemented in a derived class, determines whether the specified string can be used as Text
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/// for this bar code type.
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/// </summary>
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/// <param name="text">The code string to check.</param>
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/// <returns>True if the text can be used for the actual barcode.</returns>
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protected abstract void CheckCode(string text);
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/// <summary>
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/// Calculates the distance between an old anchor point and a new anchor point.
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/// </summary>
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/// <param name="oldType"></param>
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/// <param name="newType"></param>
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/// <param name="size"></param>
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public static XVector CalcDistance(AnchorType oldType, AnchorType newType, XSize size)
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{
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if (oldType == newType)
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return new XVector();
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XVector result;
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Delta delta = Deltas[(int)oldType, (int)newType];
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result = new XVector(size.Width / 2 * delta.X, size.Height / 2 * delta.Y);
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return result;
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}
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struct Delta
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{
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public Delta(int x, int y)
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{
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X = x;
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Y = y;
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}
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public readonly int X;
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public readonly int Y;
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}
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static readonly Delta[,] Deltas = new Delta[9, 9]
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{
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{ new Delta(0, 0), new Delta(1, 0), new Delta(2, 0), new Delta(0, 1), new Delta(1, 1), new Delta(2, 1), new Delta(0, 2), new Delta(1, 2), new Delta(2, 2) },
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{ new Delta(-1, 0), new Delta(0, 0), new Delta(1, 0), new Delta(-1, 1), new Delta(0, 1), new Delta(1, 1), new Delta(-1, 2), new Delta(0, 2), new Delta(1, 2) },
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{ new Delta(-2, 0), new Delta(-1, 0), new Delta(0, 0), new Delta(-2, 1), new Delta(-1, 1), new Delta(0, 1), new Delta(-2, 2), new Delta(-1, 2), new Delta(0, 2) },
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{ new Delta(0, -1), new Delta(1, -1), new Delta(2, -1), new Delta(0, 0), new Delta(1, 0), new Delta(2, 0), new Delta(0, 1), new Delta(1, 1), new Delta(2, 1) },
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{ new Delta(-1, -1), new Delta(0, -1), new Delta(1, -1), new Delta(-1, 0), new Delta(0, 0), new Delta(1, 0), new Delta(-1, 1), new Delta(0, 1), new Delta(1, 1) },
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{ new Delta(-2, -1), new Delta(-1, -1), new Delta(0, -1), new Delta(-2, 0), new Delta(-1, 0), new Delta(0, 0), new Delta(-2, 1), new Delta(-1, 1), new Delta(0, 1) },
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{ new Delta(0, -2), new Delta(1, -2), new Delta(2, -2), new Delta(0, -1), new Delta(1, -1), new Delta(2, -1), new Delta(0, 0), new Delta(1, 0), new Delta(2, 0) },
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{ new Delta(-1, -2), new Delta(0, -2), new Delta(1, -2), new Delta(-1, -1), new Delta(0, -1), new Delta(1, -1), new Delta(-1, 0), new Delta(0, 0), new Delta(1, 0) },
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{ new Delta(-2, -2), new Delta(-1, -2), new Delta(0, -2), new Delta(-2, -1), new Delta(-1, -1), new Delta(0, -1), new Delta(-2, 0), new Delta(-1, 0), new Delta(0, 0) },
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};
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}
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}
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