KRY-0x02/main_form.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace KRY_0x02
{
    public partial class main_form : Form
    {
        public main_form()
        {
            InitializeComponent();
        }

        public int im_h = 0;
        public int im_w = 0;
        public static int cap = 0;
        public string path = "";

        public string getpath(TextBox t)
        {
            string path = t.Text;
            return path;
        }

        public int get_capacity(int a, int b)
        {
            int c = 0;
            a = im_h;
            b = im_w;
            c = ((a * b) / 8) - 8;
            cap = c;
            return c;
        }


        class do_a_stego
        {
            Bitmap my_bitmap;// = new Bitmap(getpath(textBox1));
            Color pixel;

            byte bit_array_to_byte(BitArray bit_array)
            {
                byte[] byte_array = new byte[1];
                //if (bit_array.Count == cap)
                if (bit_array.Count == 8)
                    {
                    bit_array.CopyTo(byte_array, 0);
                }
                else
                {
                    byte_array[0] = 0;
                    MessageBox.Show($"you should have {bit_array.Count} bits for a byte bro", "error happened");
                }
                return byte_array[0];
            }

            public string encode(Bitmap b, string m)
            {
                /* WIP */
                my_bitmap = b;
                string message = m;
                for (int i = 0; i < my_bitmap.Width - 1; i++)
                {

                }
                return "";
            }

            public string gimme(Bitmap b)
            {
                /* WIP */
                my_bitmap = b;
                bool[] my_bool_array = new bool[8];
                int int_value;

                int ii = my_bool_array.Length - 1;

                for (int i = 0; i < my_bitmap.Width - 1; i++)
                {
                    pixel = my_bitmap.GetPixel(i, 0);
                    int_value = pixel.B;

                    if ((int_value & 1) == 0)
                    {
                        my_bool_array[i] = false;
                    }
                    else if ((int_value & 1) == 1)
                    {
                        my_bool_array[i] = true;
                    }
                }

                BitArray my_bit_array = new BitArray(my_bool_array);
                char my_char = Convert.ToChar(Convert.ToInt32(bit_array_to_byte(my_bit_array)));
                return Convert.ToString(my_char);
            }
        }


        private void button1_Click(object sender, EventArgs e)
        {
            // put
            if (pictureBox1.Image == null)
            {
                MessageBox.Show("you've nowhere to write to, boi");
                return;
            }
            do_a_stego do_A_Stego = new do_a_stego();
            Bitmap b = new Bitmap(pictureBox1.Image);
            string m = textBox1putm.Text;
            do_A_Stego.encode(b, m);
        }
        private void button2_Click(object sender, EventArgs e)
        {
            // get
            if (pictureBox1.Image == null)
            {
                MessageBox.Show("you've nowhere to read from, boi");
                return;
            }
            do_a_stego do_A_Stego = new do_a_stego();
            Bitmap b = new Bitmap(pictureBox1.Image);
            textBox2getm.Text = do_A_Stego.gimme(b);
        }


        private void button4_Click(object sender, EventArgs e)
        {
            /*
             * Wrap the creation of the OpenFileDialog instance in a using statement,
             * rather than manually calling the Dispose method to ensure proper disposal 
             */

            using (OpenFileDialog dlg = new OpenFileDialog())
            {
                dlg.Title = "pick a pic";
                dlg.Filter = "png (*.png)|*.png|bmp (*.bmp)|*.bmp|tiff (*.tiff)|*.tiff|custom (*.*)|*.*";

                if (dlg.ShowDialog() == DialogResult.OK)
                {
                    label5pathtopic.Text = @"path/to/pic";
                    pictureBox1.Image = new Bitmap(dlg.FileName);
                    pictureBox1.SizeMode = PictureBoxSizeMode.Normal;
                    textBox3.Text = dlg.FileName;
                    path = textBox3.Text;
                    im_h = pictureBox1.Image.Height;
                    im_w = pictureBox1.Image.Width;
                    textBox4height.Text = im_h.ToString();
                    textBox5width.Text = im_w.ToString();
                    textBox6capacity.Text = get_capacity(im_h,im_w).ToString();
                }
            }
        }
        
        private void button5_Click(object sender, EventArgs e)
        {
            /*/* use-default-pic button */
            string filename = @"C:\Users\citizen\source\repos\KRY-0x02\security.png";
            pictureBox1.Image = new Bitmap(filename);
            pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
            label5pathtopic.Text = $"Security:  Actual actual reality: nobody cares about his secrets."
                + " (Also, I would be hard-pressed to find that wrench for $5.)";
            textBox3.Text = filename + "\t\t by randall ... https://xkcd.com/538";
            path = filename;
            im_h = pictureBox1.Image.Height;
            im_w = pictureBox1.Image.Width;
            textBox4height.Text = im_h.ToString();
            textBox5width.Text = im_w.ToString();
            textBox6capacity.Text = Convert.ToString(get_capacity(im_h, im_w));
        }

        private void button6_Click(object sender, EventArgs e)
        {   
            /* clear pic selection */
            label5pathtopic.Text = @"path/to/pic";
            pictureBox1.Image = null;
            textBox3.Text = "";
            path = "";
            textBox4height.Text = "";
            textBox5width.Text = "";
            textBox6capacity.Text = "";
            im_h = 0;
            im_w = 0;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (pictureBox1.Image == null)
            {
                MessageBox.Show("you've nothing to export, boi");
                return;
            }
            SaveFileDialog saveFileDialog1 = new SaveFileDialog();
            saveFileDialog1.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);      
    saveFileDialog1.Title = "export your neatly stego-ed pic";
            saveFileDialog1.CheckFileExists = false;
            saveFileDialog1.CheckPathExists = false;
            saveFileDialog1.DefaultExt = "";
            saveFileDialog1.Filter = "png (*.png)|*.png|any file you wish (*.*)|*.*";
            saveFileDialog1.FilterIndex = 2;
            saveFileDialog1.RestoreDirectory = true;
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                // Get file name.
                string name = saveFileDialog1.FileName;
                pictureBox1.Image.Save($"{name}",ImageFormat.MemoryBmp);
                MessageBox.Show($"saved to {name}","gj, file saved!");
            }
        }
    }
}