using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace DatamatrixNF
{
    public class DatamatrixTextAddtion
    {
        Color FontColor = Color.Black;
        Color BackColor = Color.White;
        string Fontname = "Arial";
        int FontSize = 12;
        int Height = 0;
        int Width = 0;
        public Bitmap UpdateText(Bitmap img, int format, string text, string fontname, int fontsize, int margin, int rotation)
        {
            Color FontColor = Color.Black;
            Color BackColor = Color.White;
            string FontName = fontname;
            int FontSize = fontsize;
            int Height = 0;
            int Width = 0;
            var objFont = new Font(FontName, FontSize);
            var image1bmp = new Bitmap(400, 400);
            Bitmap image1 = img;
            Graphics objFontsize = Graphics.FromImage(image1bmp);
            var sf = objFontsize.MeasureString(text, objFont);
            switch (format)
            {
                case 0:
                case 2:
                    {
                        if (image1.Width < 70)
                            Width = Convert.ToInt32(sf.Width) + 10 + image1.Width;
                        else
                            Width = image1.Width * 3;
                        break;
                    }
                case 1:
                case 3:
                    {
                        if (image1.Width < 70)
                            Width = Convert.ToInt32(sf.Width) + 10 + image1.Width;
                        else
                            Width = image1.Width * 3;
                        break;
                    }
                case 22:
                    {
                        if (image1.Height < 70)
                            Height = Convert.ToInt32(sf.Height) + 10 + image1.Height;
                        else
                            Height = image1.Height * 3;
                        break;
                    }
                case 33:
                    {
                        if (image1.Height < 70)
                            Height = Convert.ToInt32(sf.Height) + 10 + image1.Height;
                        else
                            Height = image1.Height * 3;
                        break;
                    }
            }
            Height = image1.Height;
            Bitmap objBitmap = new Bitmap(Width, Height);
            Graphics objGraphics = Graphics.FromImage(objBitmap);
            var objBrushForeColor = new SolidBrush(FontColor);
            var objBrushBackColor = new SolidBrush(BackColor);
            Color objColor;

            switch (format)
            {
                case 0: // rechts
                    {

                        objGraphics.FillRectangle(objBrushBackColor, 0, 0, Width, Height);
                        objGraphics.DrawImage(image1, new System.Drawing.Point(0, 0));
                        Width = image1.Width + 20;
                        Height = (int)image1.Height - (int)sf.Height - margin;
                        var objPoint = new System.Drawing.Point(Width, Height);
                        objGraphics.DrawString(text, objFont, objBrushForeColor, objPoint);
                        break;
                    }
                case 1: // links
                    {
                        objGraphics.FillRectangle(objBrushBackColor, 0, 0, Width, Height);
                        objGraphics.DrawImage(image1, new System.Drawing.Point(Width - (int)image1.Width - margin, 0));

                        Width = margin + 20;

                        Height = (int)image1.Height - (int)sf.Height - margin;
                        var objPoint = new System.Drawing.Point(Width, Height);
                        objGraphics.DrawString(text, objFont, objBrushForeColor, objPoint);
                        break;
                    }
                case 2: // links
                    {
                        objGraphics.FillRectangle(objBrushBackColor, 0, 0, Width, Height);
                        var objPoint = new PointF(image1.Width + 10, Height - sf.Height - 0);
                        objGraphics.DrawString(text, objFont, objBrushForeColor, objPoint);
                        objGraphics.DrawImage(image1, new System.Drawing.Point(0, 0));
                        objBitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
                        break;
                    }
                case 3:
                    {
                        var stringFormat = new StringFormat();
                        stringFormat.Alignment = StringAlignment.Far;
                        stringFormat.LineAlignment = StringAlignment.Near;
                        objGraphics.FillRectangle(objBrushBackColor, 0, 0, Width, Height);
                        var objPoint = new PointF(Width - image1.Width - 10, Height - sf.Height - 0);
                        objGraphics.DrawString(text, objFont, objBrushForeColor, objPoint, stringFormat);
                        objGraphics.DrawImage(image1, new System.Drawing.Point(Width - image1.Width, 0));
                        objBitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
                        break;
                    }
                case var @case when @case == 3:
                    {
                        break;
                    }
            }
            image1 = null;

            switch (rotation)
            {
                case 90: { objBitmap.RotateFlip(RotateFlipType.Rotate90FlipNone); break; }
                case 180:{ objBitmap.RotateFlip(RotateFlipType.Rotate180FlipNone); break; }
                case 270:{ objBitmap.RotateFlip(RotateFlipType.Rotate270FlipNone); break; }
            }

            return objBitmap;

        }

    }
}