/cb0t/Misc/CustomColorPicker.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Globalization;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Windows.Forms;



namespace cb0t

{

    public partial class CustomColorPicker : Form

    {

        public CustomColorPicker()

        {

            this.InitializeComponent();

            this.PopulateColorList();

            this.doubleBufferedComboBox1.SelectedIndex = 0;

        }



        public void UpdateTemplate()

        {

            this.label1.Text = StringTemplate.Get(STType.ColorPicker, 0) + ":";

            this.label2.Text = StringTemplate.Get(STType.ColorPicker, 1) + ":";

            this.label7.Text = StringTemplate.Get(STType.ColorPicker, 2) + ":";

        }



        private Pen pen = new Pen(Brushes.Black, 1);

        private SolidBrush text_brush = new SolidBrush(Color.Black);

        private List<Color> list = new List<Color>();



        private void PopulateColorList()

        {

            MethodAttributes attributes = MethodAttributes.Static | MethodAttributes.Public;

            PropertyInfo[] properties = typeof(Color).GetProperties();



            for (int i = 0; i < properties.Length; i++)

            {

                PropertyInfo info = properties[i];



                if (info.PropertyType == typeof(Color))

                {

                    MethodInfo getMethod = info.GetGetMethod();



                    if ((getMethod != null) && ((getMethod.Attributes & attributes) == attributes))

                        this.list.Add((Color)info.GetValue(null, null));

                }

            }



            this.list.Sort(new StandardColorComparer());



            foreach (Color c in this.list)

                this.doubleBufferedComboBox1.Items.Add(c);



            this.doubleBufferedComboBox2.Items.Add(Color.White);

            this.doubleBufferedComboBox2.Items.Add(Color.Black);

            this.doubleBufferedComboBox2.Items.Add(Color.Navy);

            this.doubleBufferedComboBox2.Items.Add(Color.Green);

            this.doubleBufferedComboBox2.Items.Add(Color.Red);

            this.doubleBufferedComboBox2.Items.Add(Color.Maroon);

            this.doubleBufferedComboBox2.Items.Add(Color.Purple);

            this.doubleBufferedComboBox2.Items.Add(Color.Orange);

            this.doubleBufferedComboBox2.Items.Add(Color.Yellow);

            this.doubleBufferedComboBox2.Items.Add(Color.Lime);

            this.doubleBufferedComboBox2.Items.Add(Color.Teal);

            this.doubleBufferedComboBox2.Items.Add(Color.Aqua);

            this.doubleBufferedComboBox2.Items.Add(Color.Blue);

            this.doubleBufferedComboBox2.Items.Add(Color.Fuchsia);

            this.doubleBufferedComboBox2.Items.Add(Color.Gray);

            this.doubleBufferedComboBox2.Items.Add(Color.Silver);

            this.doubleBufferedComboBox1.SelectedIndex = -1;

        }



        private void doubleBufferedComboBox1_DrawItem(object sender, DrawItemEventArgs e)

        {

            if (e.Index > -1)

            {

                e.Graphics.FillRectangle(Brushes.White, e.Bounds);



                Color color = (Color)this.doubleBufferedComboBox1.Items[e.Index];



                using (SolidBrush sb = new SolidBrush(color))

                    e.Graphics.FillRectangle(sb, new Rectangle(e.Bounds.X + 1, e.Bounds.Y + 1, 18, 12));



                e.Graphics.DrawRectangle(this.pen, new Rectangle(e.Bounds.X + 1, e.Bounds.Y + 1, 17, 11));



                if (e.Index == 0)

                {

                    e.Graphics.DrawString("Custom", this.Font, this.text_brush, new PointF(e.Bounds.X + 24, e.Bounds.Y));

                    e.Graphics.DrawString("??", this.Font, this.text_brush, new PointF(e.Bounds.X + 2, e.Bounds.Y));

                }

                else e.Graphics.DrawString(color.Name, this.Font, this.text_brush, new PointF(e.Bounds.X + 24, e.Bounds.Y));

            }

        }



        private void doubleBufferedComboBox2_DrawItem(object sender, DrawItemEventArgs e)

        {

            if (e.Index > -1)

            {

                using (SolidBrush sb = new SolidBrush((Color)this.doubleBufferedComboBox2.Items[e.Index]))

                    e.Graphics.FillRectangle(sb, e.Bounds);

            }

        }



        private bool user_changing = false;



        private void doubleBufferedComboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            if (!this.user_changing)

            {

                if (this.doubleBufferedComboBox1.SelectedIndex == 0)

                {

                    this.panel1.BackColor = Color.White;

                    this.trackBar1.Value = 255;

                    this.label3.Text = "R: 255";

                    this.trackBar2.Value = 255;

                    this.label4.Text = "G: 255";

                    this.trackBar3.Value = 255;

                    this.label5.Text = "B: 255";

                    this.textBox1.Text = String.Format("#{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);

                }

                else

                {

                    this.panel1.BackColor = this.list[this.doubleBufferedComboBox1.SelectedIndex];

                    this.trackBar1.Value = this.panel1.BackColor.R;

                    this.label3.Text = "R: " + this.trackBar1.Value;

                    this.trackBar2.Value = this.panel1.BackColor.G;

                    this.label4.Text = "G: " + this.trackBar2.Value;

                    this.trackBar3.Value = this.panel1.BackColor.B;

                    this.label5.Text = "B: " + this.trackBar3.Value;

                    this.textBox1.Text = String.Format("#{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);

                }

            }

            else this.user_changing = false;

        }



        private void trackBar1_Scroll(object sender, EventArgs e)

        {

            Color color = Color.FromArgb(this.trackBar1.Value, this.trackBar2.Value, this.trackBar3.Value);



            for (int i = 1; i < this.list.Count; i++)

                if (this.list[i].RGBEquals(color))

                    if (this.doubleBufferedComboBox1.SelectedIndex != i)

                    {

                        this.user_changing = true;

                        this.doubleBufferedComboBox1.SelectedIndex = i;

                        this.panel1.BackColor = color;

                        this.label3.Text = "R: " + this.trackBar1.Value;

                        this.label4.Text = "G: " + this.trackBar2.Value;

                        this.label5.Text = "B: " + this.trackBar3.Value;

                        this.textBox1.Text = String.Format("#{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);

                        return;

                    }



            if (this.doubleBufferedComboBox1.SelectedIndex != 0)

            {

                this.user_changing = true;

                this.doubleBufferedComboBox1.SelectedIndex = 0;

            }



            this.panel1.BackColor = color;

            this.label3.Text = "R: " + this.trackBar1.Value;

            this.label4.Text = "G: " + this.trackBar2.Value;

            this.label5.Text = "B: " + this.trackBar3.Value;

            this.textBox1.Text = String.Format("#{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);

        }



        public Color SelectedColor

        {

            get { return this.panel1.BackColor; }



            set

            {

                this.panel1.BackColor = value;

                this.trackBar1.Value = this.panel1.BackColor.R;

                this.trackBar2.Value = this.panel1.BackColor.G;

                this.trackBar3.Value = this.panel1.BackColor.B;

                this.trackBar1_Scroll(null, null);

            }

        }



        public String SelectedHex

        {

            get

            {

                return String.Format("{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);

            }

            set

            {

                if (value.Length == 6)

                {

                    String r_str = value.Substring(0, 2);

                    String g_str = value.Substring(2, 2);

                    String b_str = value.Substring(4, 2);



                    byte r, g, b;



                    if (byte.TryParse(r_str, NumberStyles.HexNumber, null, out r))

                        if (byte.TryParse(g_str, NumberStyles.HexNumber, null, out g))

                            if (byte.TryParse(b_str, NumberStyles.HexNumber, null, out b))

                            {

                                this.trackBar1.Value = r;

                                this.trackBar2.Value = g;

                                this.trackBar3.Value = b;

                                this.trackBar1_Scroll(null, null);

                            }

                }

            }

        }



        private void button2_Click(object sender, EventArgs e)

        {

            String str = this.textBox1.Text.Replace("#", String.Empty).Replace(" ", String.Empty);



            if (str.Length == 6)

            {

                String r_str = str.Substring(0, 2);

                String g_str = str.Substring(2, 2);

                String b_str = str.Substring(4, 2);



                byte r, g, b;



                if (byte.TryParse(r_str, NumberStyles.HexNumber, null, out r))

                    if (byte.TryParse(g_str, NumberStyles.HexNumber, null, out g))

                        if (byte.TryParse(b_str, NumberStyles.HexNumber, null, out b))

                        {

                            this.trackBar1.Value = r;

                            this.trackBar2.Value = g;

                            this.trackBar3.Value = b;

                            this.trackBar1_Scroll(null, null);

                            return;

                        }



                MessageBox.Show("invalid hex color",

                                "cb0t",

                                MessageBoxButtons.OK,

                                MessageBoxIcon.Error);

            }

        }



        private void doubleBufferedComboBox2_SelectedIndexChanged(object sender, EventArgs e)

        {

            if (this.doubleBufferedComboBox2.SelectedIndex > -1)

            {

                this.panel1.BackColor = (Color)this.doubleBufferedComboBox2.SelectedItem;

                this.trackBar1.Value = this.panel1.BackColor.R;

                this.label3.Text = "R: " + this.trackBar1.Value;

                this.trackBar2.Value = this.panel1.BackColor.G;

                this.label4.Text = "G: " + this.trackBar2.Value;

                this.trackBar3.Value = this.panel1.BackColor.B;

                this.label5.Text = "B: " + this.trackBar3.Value;

                this.textBox1.Text = String.Format("#{0:x2}{1:x2}{2:x2}", (byte)this.trackBar1.Value, (byte)this.trackBar2.Value, (byte)this.trackBar3.Value);



                for (int i = 1; i < this.list.Count; i++)

                    if (this.list[i].RGBEquals(this.panel1.BackColor))

                        if (this.doubleBufferedComboBox1.SelectedIndex != i)

                        {

                            this.doubleBufferedComboBox1.SelectedIndex = i;

                            break;

                        }



                this.doubleBufferedComboBox2.SelectedIndex = -1;

                this.DialogResult = DialogResult.OK;

            }

        }

    }



    class StandardColorComparer : IComparer<Color>

    {

        public int Compare(Color color, Color color2)

        {

            if (color.A < color2.A)

                return -1;



            if (color.A > color2.A)

                return 1;



            if (color.GetHue() < color2.GetHue())

                return -1;



            if (color.GetHue() > color2.GetHue())

                return 1;



            if (color.GetSaturation() < color2.GetSaturation())

                return -1;



            if (color.GetSaturation() > color2.GetSaturation())

                return 1;



            if (color.GetBrightness() < color2.GetBrightness())

                return -1;



            if (color.GetBrightness() > color2.GetBrightness())

                return 1;



            return 0;

        }

    }

}