using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using com.google.zxing;

using COMMON = com.google.zxing.common;

namespace Qcode

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if (string.IsNullOrEmpty(this.textBox1.Text.Trim()))

            {

                MessageBox.Show("请输入需要转换的信息！");

            }

            else

            {

                string content = this.textBox1.Text;//待编码数据

                try

                {

                    int QSize = Int32.Parse(textBox2.Text);//二维码大小

                    string s = hScrollBar1.Value.ToString("X");//二维码透明度

                    string q = hScrollBar2.Value.ToString("X");//背景透明度

                    string Scolor = "0x" + s + textBox3.Text;//二维码颜色

                    string Qcolor = "0x" + q + textBox4.Text;//背景颜色

                    COMMON.ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QSize, QSize);

                    Bitmap bt = toBitmap(byteMatrix, Scolor, Qcolor);

                    pictureBox1.Image = bt;

                }

                catch (Exception ex)

                {

                    MessageBox.Show(ex.Message);

                }

            }

        }

        public static Bitmap toBitmap(COMMON.ByteMatrix matrix,string scolor,string qcolor)

        {

            int width = matrix.Width;

            int height = matrix.Height;

            Bitmap bmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

            for (int x = ; x < width; x++)

            {

                for (int y = ; y < height; y++)

                {

                    bmap.SetPixel(x, y, matrix.get_Renamed(x, y) != - ? ColorTranslator.FromHtml(scolor) : ColorTranslator.FromHtml(qcolor));

                }

            }

            return bmap;

        }

        private void button3_Click(object sender, EventArgs e)

        {

            Image img = pictureBox1.Image;

            if (img != null)

            {

                SaveFileDialog sFD = new SaveFileDialog();

                sFD.Filter = "*.png|*.png";

                if (sFD.ShowDialog() == DialogResult.OK)

                {

                    Bitmap bmap = new Bitmap(img, img.Width, img.Height);

                    bmap.Save(sFD.FileName);

                    MessageBox.Show("保存成功！");

                }

            }

            else

            {

                MessageBox.Show("您还没有生成二维码！");

            }

        }

        private void button2_Click(object sender, EventArgs e)

        {

            if (this.openFileDialog1.ShowDialog() != DialogResult.OK)

            {

                return;

            }

            Bitmap bmap;

            try

            {

                Image img = Image.FromFile(this.openFileDialog1.FileName);

                bmap = new Bitmap(img);

                if (bmap == null)

                {

                    MessageBox.Show("解码错误，请确保二维码图片已打开！");

                    return;

                }

            }

            catch

            {

                MessageBox.Show("解码错误，请确保图片格式正确！");

                return;

            }

            LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);

            com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));

            Result result;

            try

            {

                result = new MultiFormatReader().decode(bitmap);

            }

            catch

            {

                string str = "解码失败，失败原因可能是:"+"\n";

                str += "1.您打开的图片非二维码图片！" + "\n";

                str += "2.您打开的二维码图片背景色太深！" + "\n";

                str += "3.您打开的二维码图片二维码和背景色太接近！" + "\n";

                MessageBox.Show(str);

                return;

            }

            textBox1.Text = result.Text;

        }

    }

}