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 System.IO;

namespace Notepad
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }

        string usedfile = string.Empty;

        private void zamknijToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void otwórzToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OpenFile();

        }

        private void zapiszToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SaveFile();
        }

        private void OpenFile()
        {
            if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {

                try
                {
                    TabPage tabPage1 = new TabPage();
                    tabPage1.Location = new System.Drawing.Point(4, 22);
                    tabPage1.Name = usedfile = Path.GetDirectoryName(openFileDialog1.FileName);
                    tabPage1.Padding = new System.Windows.Forms.Padding(3);
                    tabPage1.Size = new System.Drawing.Size(447, 334);
                    tabPage1.TabIndex = 0;
                    tabPage1.Text = "tabPage1";
                    tabPage1.UseVisualStyleBackColor = true;

                    RichTextBox richTextBox1 = new RichTextBox();
                   // richTextBox1.Dock = DockStyle.Fill;
                    //tabPage1.Controls.Add(richTextBox1);
                    WebBrowser WebBrowser1 = new WebBrowser();//--
                    richTextBox1.Width = tabPage1.Width / 2;//--
                    richTextBox1.Height = tabPage1.Height;//--

                    WebBrowser1.Left = tabPage1.Width / 2;//--
                    WebBrowser1.Width = tabPage1.Width / 2;//--
                    WebBrowser1.Height = tabPage1.Height;//--
                    richTextBox1.TextChanged += new EventHandler(TextChanged);//--

                    tabControl1.Controls.Add(tabPage1);//--

                    tabPage1.Text = Path.GetFileName(openFileDialog1.FileName);
                    richTextBox1.Text = File.ReadAllText(openFileDialog1.FileName);

                    WebBrowser1.DocumentText = richTextBox1.Text;//--
                    tabPage1.Controls.Add(richTextBox1);//--
                    tabPage1.Controls.Add(WebBrowser1);//--
                }
                catch
                {

                }
            }
        }
        private void TextChanged(object sender, EventArgs e)
        {
            foreach (Control c in tabControl1.SelectedTab.Controls)
            {
                if (c is WebBrowser)
                {
                    (c as WebBrowser).DocumentText = (sender as RichTextBox).Text;
                    break;
                }

            }

        }



        private void SaveFile()
        {
            if (tabControl1.Controls.Count > 0)
            {
                TabPage t = (TabPage)tabControl1.Controls[tabControl1.SelectedIndex];

                saveFileDialog1.InitialDirectory = t.Name;
                saveFileDialog1.FileName = t.Text;

                RichTextBox richTextBox = (RichTextBox)t.Controls[0];

                if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                {
                    try
                    {
                        System.IO.File.WriteAllText(saveFileDialog1.FileName, richTextBox.Text);
                        tabControl1.Controls.Remove(t);
                        tabControl1.SelectTab(0);
                    }
                    catch
                    {

                    }
                }
            }

        }

        private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }

        private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            foreach (Control c in tabControl1.SelectedTab.Controls)
            {
                if (c is RichTextBox)
                {
                    int dlugosc = (c as RichTextBox).SelectionLength;
                    int start = (c as RichTextBox).SelectionStart;
                    string dane = (c as RichTextBox).Text;
                    dane = dane.Insert(start + dlugosc, "</br>");
                    (c as RichTextBox).Text = dane;

                }
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            foreach (Control c in tabControl1.SelectedTab.Controls)
            {
                if (c is RichTextBox)
                {
                    int dlugosc = (c as RichTextBox).SelectionLength;
                    int start = (c as RichTextBox).SelectionStart;
                    string dane = (c as RichTextBox).Text;
                    dane = dane.Insert(start, "<p>");
                    (c as RichTextBox).Text = dane;

                }
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            foreach (Control c in tabControl1.SelectedTab.Controls)
            {
                if (c is RichTextBox)
                {
                    int dlugosc = (c as RichTextBox).SelectionLength;
                    int start = (c as RichTextBox).SelectionStart;
                    string dane = (c as RichTextBox).Text;


                    dane = dane.Insert(start, "<span>");
                    (c as RichTextBox).Text = dane;

                }
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            foreach (Control c in tabControl1.SelectedTab.Controls)
            {
                if (c is RichTextBox)
                {
                    int dlugosc = (c as RichTextBox).SelectionLength;
                    int start = (c as RichTextBox).SelectionStart;
                    string dane = (c as RichTextBox).Text;

                    dane = dane.Insert(start + dlugosc, "</span>");

                    (c as RichTextBox).Text = dane;

                }
            }





        }
    }





}