HSLDialog.cs

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
using be.gaudry.model.drawing.colors.converter;
 
 
namespace be.gaudry.view.dialogs
{
    public partial class HSLDialog : Form
    {
        private Bitmap hue;
        private Bitmap saturation;
        private Bitmap luminance;
        private Bitmap RGB;
        private bool keyIsDown = false;
        private byte red, green, blue;
        private int initialHue = 180, initialSat = 50, initialLum = 50;
 
        public HSLDialog()
        {
            InitializeComponent();
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw |
                ControlStyles.DoubleBuffer | ControlStyles.UserPaint, true);
 
            hue = new Bitmap(huePicBox.Width, huePicBox.Height, PixelFormat.Format24bppRgb);
            saturation = new Bitmap(satPicBox.Width, satPicBox.Height, PixelFormat.Format24bppRgb);
            luminance = new Bitmap(lumPicBox.Width, lumPicBox.Height, PixelFormat.Format24bppRgb);
            RGB = new Bitmap(RGBPicBox.Width, RGBPicBox.Height, PixelFormat.Format24bppRgb);
 
            initBars();
        }
 
        private void initBars()
        {
 
            hueSlider.Value = initialHue;
            hueText.Text = initialHue.ToString();
            satSlider.Value = initialSat;
            satText.Text = initialSat.ToString();
            lumSlider.Value = initialLum;
            lumText.Text = initialLum.ToString();
 
            Graphics gr = Graphics.FromImage(hue);
 
            for (int i = 0; i < 360; ++i)
            {
                HSL hsl = new HSL(i, .5f, .5f);
                gr.DrawLine(new Pen(hsl.Color), i, 0, i, huePicBox.Height);
            }
 
            huePicBox.Image = hue;
 
            drawBars();
        }
 
        private void drawBars()
        {
            Graphics g = Graphics.FromImage(saturation);
 
            float h = (float)hueSlider.Value;
 
            for (int i = 0; i < 360; ++i)
            {
                HSL hsl = new HSL(h, i / 360.0F, .5F);
 
                g.DrawLine(new Pen(hsl.Color), i, 0, i, satPicBox.Height);
            }
 
            satPicBox.Image = saturation;
 
            Graphics gl = Graphics.FromImage(luminance);
 
            float s = (float)satSlider.Value / 100.0f;
 
            for (int i = 0; i < 360; ++i)
            {
                HSL hsl = new HSL(h, s, i / 360.0f);
 
                gl.DrawLine(new Pen(hsl.Color), i, 0, i, lumPicBox.Height);
            }
 
            lumPicBox.Image = luminance;
 
            Graphics rgb = Graphics.FromImage(RGB);
 
            float l = (float)lumSlider.Value / 100.0f;
 
            Color rgbFinal = new HSL(h, s, l).Color;
            rgb.FillRectangle(new SolidBrush(rgbFinal), 0, 0, RGBPicBox.Width, RGBPicBox.Height);
 
            RGBPicBox.Image = RGB;
 
            redLabel.Text = String.Format("Rouge : {0}", rgbFinal.R.ToString());
            greenLabel.Text = String.Format("Vert : {0}", rgbFinal.G.ToString());
            blueLabel.Text = String.Format("Bleu : {0}", rgbFinal.B.ToString());
 
            red = rgbFinal.R;
            green = rgbFinal.G;
            blue = rgbFinal.B;
        }
 
        private void changeHueAction(object sender, System.EventArgs e)
        {
            if (!keyIsDown)
            {
                hueText.Text = (hueSlider.Value).ToString();
                drawBars();
            }
        }
 
        private void hueText_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
        {
            if (!Char.IsControl(e.KeyChar))
            {
                if (!Char.IsDigit(e.KeyChar))
                {
                    e.Handled = true;
                    return;
                }
 
                if (hueText.Text.Length > 0)
                {
                    string s = hueText.Text.Substring(0, hueText.SelectionStart);
                    s += e.KeyChar;
                    int sub = hueText.SelectionStart + hueText.SelectionLength;
                    s += hueText.Text.Substring(sub, hueText.Text.Length - sub);
 
                    int n = Convert.ToInt16(s);
 
                    if (n > 359)
                    {
                        e.Handled = true;
                        return;
                    }
 
                    keyIsDown = true;
                    hueSlider.Value = n;
                    keyIsDown = false;
                }
            }
 
            drawBars();
        }
 
        private void changeSatAction(object sender, System.EventArgs e)
        {
            if (!keyIsDown)
            {
                satText.Text = satSlider.Value.ToString();
                drawBars();
            }
        }
 
        private void satText_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
        {
            if (!Char.IsControl(e.KeyChar))
            {
                if (!Char.IsDigit(e.KeyChar))
                {
                    e.Handled = true;
                    return;
                }
 
                if (satText.Text.Length > 0)
                {
                    string s = satText.Text.Substring(0, satText.SelectionStart);
                    s += e.KeyChar;
                    int sub = satText.SelectionStart + satText.SelectionLength;
                    s += satText.Text.Substring(sub, satText.Text.Length - sub);
 
                    int n = Convert.ToInt16(s);
 
                    if (n > 100)
                    {
                        e.Handled = true;
                        return;
                    }
 
                    keyIsDown = true;
                    satSlider.Value = n;
                    keyIsDown = false;
                }
            }
 
            drawBars();
        }
 
        private void changeLumAction(object sender, System.EventArgs e)
        {
            if (!keyIsDown)
            {
                lumText.Text = lumSlider.Value.ToString();
                drawBars();
            }
        }
 
        private void lumText_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
        {
            if (!Char.IsControl(e.KeyChar))
            {
                if (!Char.IsDigit(e.KeyChar))
                {
                    e.Handled = true;
                    return;
                }
 
                if (lumText.Text.Length > 0)
                {
                    string s = lumText.Text.Substring(0, lumText.SelectionStart);
                    s += e.KeyChar;
                    int sub = lumText.SelectionStart + lumText.SelectionLength;
                    s += lumText.Text.Substring(lumText.SelectionStart + lumText.SelectionLength, lumText.Text.Length - sub);
 
                    int n = Convert.ToInt16(s);
 
                    if (n > 100)
                    {
                        e.Handled = true;
                        return;
                    }
 
                    keyIsDown = true;
                    lumSlider.Value = n;
                    keyIsDown = false;
                }
            }
 
            drawBars();
        }
 
        #region properties
        public Color SelectedColor
        {
            get
            {
                return Color.FromArgb(red, green, blue);
            }
            set
            {
                HSL hsl = new HSL(value);
 
                hueSlider.Value = (int)hsl.Hue;
                satSlider.Value = (int)(hsl.Saturation * 100);
                lumSlider.Value = (int)(hsl.Luminance * 100);
            }
        }
        /*
        public int H
        {
            get { return initialHue; }
            set
            {
                initialHue = value;
                drawBars();
            }
        }
 
 
        public int S
        {
            get { return initialSat; }
            set
            {
                initialSat = value;
                drawBars();
            }
        }
 
 
        public int L
        {
            get { return initialLum; }
            set
            {
                initialLum = value;
                drawBars();
            }
        } */
        #endregion
 
    }
}