BinaryKits.Zpl/src/BinaryKits.Zpl.Viewer/ElementDrawers/BarcodeUpcExtensionElementDrawer.cs at 8764c5b38bd2168b2004a39a9549dc28fd1b733d · BinaryKits/BinaryKits.Zpl · GitHub

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using BinaryKits.Zpl.Label;
using BinaryKits.Zpl.Label.Elements;
using BinaryKits.Zpl.Viewer.Helpers;
using BinaryKits.Zpl.Viewer.Symologies;

using SkiaSharp;

using System;

namespace BinaryKits.Zpl.Viewer.ElementDrawers
{
    public class BarcodeUpcExtensionElementDrawer : BarcodeDrawerBase
    {
        ///<inheritdoc/>
        public override bool CanDraw(ZplElementBase element)
        {
            return element is ZplBarcodeUpcExtension;
        }

        ///<inheritdoc/>
        public override SKPoint Draw(ZplElementBase element, DrawerOptions options, SKPoint currentPosition, InternationalFont internationalFont, int printDensityDpmm)
        {
            if (element is ZplBarcodeUpcExtension barcode)
            {
                float x = barcode.PositionX;
                float y = barcode.PositionY;

                if (barcode.UseDefaultPosition)
                {
                    x = currentPosition.X;
                    y = currentPosition.Y;
                }

                string content = barcode.Content;
                if (barcode.HexadecimalIndicator is char hexIndicator)
                {
                    content = content.ReplaceHexEscapes(hexIndicator, internationalFont);
                }

                if (content.Length <= 2)
                {
                    // EAN-2
                    content = content.PadLeft(2, '0');
                }
                else
                {
                    // EAN-5
                    content = content.PadLeft(5, '0').Substring(0, 5);
                }

                string interpretation = content;

                bool[] data= UpcExtensionSymbology.Encode(content);
                using SKBitmap resizedImage = BoolArrayToSKBitmap(data, barcode.Height, barcode.ModuleWidth);
                byte[] png = resizedImage.Encode(SKEncodedImageFormat.Png, 100).ToArray();
                this.DrawBarcode(png, x, y, resizedImage.Width, resizedImage.Height, barcode.FieldOrigin != null, barcode.FieldOrientation);

                if (barcode.PrintInterpretationLine)
                {
                    float labelFontSize = FontScale.GetBitmappedFontSize("A", Math.Min(barcode.ModuleWidth, 10), printDensityDpmm).Value;
                    SKTypeface labelTypeFace = options.FontManager.GetFont("A");
                    SKFont labelFont = new(labelTypeFace, labelFontSize);
                    this.DrawInterpretationLine(interpretation, labelFont, x, y, resizedImage.Width, resizedImage.Height, barcode.FieldOrigin != null, barcode.FieldOrientation, barcode.PrintInterpretationLineAboveCode, options);
                }

                return this.CalculateNextDefaultPosition(x, y, resizedImage.Width, resizedImage.Height, barcode.FieldOrigin != null, barcode.FieldOrientation, currentPosition);
            }

            return currentPosition;
        }

    }
}