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aistudio-wpf-diagram/zxing.core/zxing.core/oned/UPCAWriter.cs
2021-07-23 09:42:22 +08:00

70 lines
2.8 KiB
C#

/*
* Copyright 2010 ZXing authors
*
* Licensed 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;
using System.Collections.Generic;
using ZXing.Common;
namespace ZXing.OneD
{
/// <summary>
/// This object renders a UPC-A code as a <see cref="BitMatrix"/>.
/// <author>qwandor@google.com (Andrew Walbran)</author>
/// </summary>
public class UPCAWriter : Writer
{
private readonly EAN13Writer subWriter = new EAN13Writer();
/// <summary>
/// Encode a barcode using the default settings.
/// </summary>
/// <param name="contents">The contents to encode in the barcode</param>
/// <param name="format">The barcode format to generate</param>
/// <param name="width">The preferred width in pixels</param>
/// <param name="height">The preferred height in pixels</param>
/// <returns>
/// The generated barcode as a Matrix of unsigned bytes (0 == black, 255 == white)
/// </returns>
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height)
{
return encode(contents, format, width, height, null);
}
/// <summary>
/// </summary>
/// <param name="contents">The contents to encode in the barcode</param>
/// <param name="format">The barcode format to generate</param>
/// <param name="width">The preferred width in pixels</param>
/// <param name="height">The preferred height in pixels</param>
/// <param name="hints">Additional parameters to supply to the encoder</param>
/// <returns>
/// The generated barcode as a Matrix of unsigned bytes (0 == black, 255 == white)
/// </returns>
public BitMatrix encode(String contents,
BarcodeFormat format,
int width,
int height,
IDictionary<EncodeHintType, object> hints)
{
if (format != BarcodeFormat.UPC_A)
{
throw new ArgumentException("Can only encode UPC-A, but got " + format);
}
// Transform a UPC-A code into the equivalent EAN-13 code and write it that way
return subWriter.encode('0' + contents, BarcodeFormat.EAN_13, width, height, hints);
}
}
}