using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace FCC_Uber_MDX_Configurator
{
    public partial class AddFontForm_SubFontHeightChooserForm : Form
    {
        public int _myHeight = 10;
        Bitmap _displayB, _displayORIGINAL;
        Color _clearColour = Color.Black;

        public AddFontForm_SubFontHeightChooserForm(int h, Bitmap i)
        {
            InitializeComponent();
            _myHeight = h;
            TXT_HEIGHT.Text = _myHeight.ToString();
            _displayORIGINAL = i;
            DrawNewHeight(_myHeight);
        }

        public bool DrawNewHeight(int inH)
        {
            if (inH <= 0 || inH > _displayORIGINAL.Height)
            {
                return false;
            }
            try
            {
                _displayB = new Bitmap(PICT_EXAMPLE.Width, inH);
                Graphics _g = Graphics.FromImage(_displayB);
                _g.DrawImageUnscaledAndClipped(_displayORIGINAL, new Rectangle(new Point(0, 0), new Size(PICT_EXAMPLE.Width, inH)));
                _g.Dispose();
                //PICT_EXAMPLE.BackgroundImage = _displayB;
                //if (inH < PICT_EXAMPLE.Height)
                {
                    Bitmap _show = new Bitmap(_displayORIGINAL.Width, PICT_EXAMPLE.Height);
                    Graphics _showG = Graphics.FromImage(_show);
                    _showG.Clear(_clearColour);
                    float _scale = (float)PICT_EXAMPLE.Height / (float)inH;
                    _showG.DrawImage(_displayB, new Rectangle(0, 0, (int)((float)PICT_EXAMPLE.Width * _scale), PICT_EXAMPLE.Height));
                    _showG.Dispose();
                    PICT_EXAMPLE.BackColor = _clearColour;
                    PICT_EXAMPLE.BackgroundImageLayout = ImageLayout.None;
                    PICT_EXAMPLE.BackgroundImage = _show;
                }
                PICT_EXAMPLE.Update();
                return true;
            }
            catch (Exception e)
            {
                return false;
            }
        }

        #region Verify Textboxes Only get Number Inputs
        private void KeyDown_IsANumber(object sender, KeyEventArgs e)
        {
            if (!char.IsDigit((char)e.KeyValue) && e.KeyData != Keys.Back && e.KeyData != Keys.Left && e.KeyData != Keys.Right &&
                e.KeyData != Keys.Decimal && e.KeyValue != 190 && !e.KeyCode.Equals(Keys.NumPad0) && !e.KeyCode.Equals(Keys.NumPad1) &&
                !e.KeyCode.Equals(Keys.NumPad2) && !e.KeyCode.Equals(Keys.NumPad3) && !e.KeyCode.Equals(Keys.NumPad4) &&
                !e.KeyCode.Equals(Keys.NumPad5) && !e.KeyCode.Equals(Keys.NumPad6) && !e.KeyCode.Equals(Keys.NumPad7) &&
                !e.KeyCode.Equals(Keys.NumPad8) && !e.KeyCode.Equals(Keys.NumPad9))
            {
                e.SuppressKeyPress = true;
                return;
            }
            if (e.KeyData == Keys.Decimal || e.KeyValue == 190)
            {
                if (sender == TXT_HEIGHT)
                {
                    if (TXT_HEIGHT.Text.Contains("."))
                    {
                        e.SuppressKeyPress = true;
                        return;
                    }
                }
                else
                {
                    e.SuppressKeyPress = true;
                    return;
                }
            }
            int _t = 1;
            string _2use = TXT_HEIGHT.Text;
            if (e.KeyData != Keys.Back)
            {
                _2use = TXT_HEIGHT.Text + ((char)e.KeyValue).ToString();
            }
            else
            {
                if (_2use.Length > 1)
                {
                    _2use = _2use.Remove(_2use.Length - 1);
                }
                else
                {
                    return;
                }
            }
            if (int.TryParse(_2use, out _t))
            {
                if (DrawNewHeight(_t))
                {
                    _myHeight = _t;
                }
            }
            return;
        }
        #endregion

        #region Verify a Number is entered in TextBox
        private void Leave_VerifyTXTIsValid(object sender, EventArgs e)
        {
            try
            {
                TextBox _senderBox = (TextBox)sender;
                double _tempDbl;
                if (!double.TryParse(_senderBox.Text, out _tempDbl))
                {
                    ErrorForm _tempErrorForm = new ErrorForm(_senderBox.Name, "The value you entered is not valid");
                    _tempErrorForm.ShowDialog();
                    _senderBox.Focus();
                }
            }
            catch (Exception)
            {
                ErrorForm _tempErrorForm = new ErrorForm("Unknown Error", "There was an unexpected untraceable error caught in the application. If you can reproduce this error, please let me know at FusionControlCentre@gmail.com");
                _tempErrorForm.ShowDialog();
            }
        }
        #endregion

        private void AddFontForm_SubFontHeightChooserForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (_myHeight <= _displayORIGINAL.Height && _myHeight > 0)
            {
                this.DialogResult = DialogResult.OK;
            }
            else
            {
                e.Cancel = true;
            }
        }

        private void BTN_SAVE_Click(object sender, EventArgs e)
        {
            if (_myHeight <= _displayORIGINAL.Height && _myHeight > 0)
            {
                this.DialogResult = DialogResult.OK;
            }
        }

        private void PICT_EXAMPLE_Click(object sender, EventArgs e)
        {
            if (_clearColour == Color.Black)
            {
                _clearColour = Color.White;
            }
            else
            {
                _clearColour = Color.Black;
            }
            DrawNewHeight(_myHeight);
        }
    }
}