protected override void OnDrawItem(DrawItemEventArgs e)
{
if (this.Items.Count > 0)
{
ColorListBoxItem item = (ColorListBoxItem)this.Items[e.Index];
item.DrawItem(e, Font, ForeColor, ItemHeight);
}
}
private void MouseDoubleClick_Action(object sender, MouseEventArgs e)
{
if (sender == colorListBox1)
{
ColorListBoxItem item = (ColorListBoxItem)colorListBox1.SelectedItem;
SelectedColor = item.Color;
}
else if (sender == colorListBox2)
{
ColorListBoxItem item = (ColorListBoxItem)colorListBox2.SelectedItem;
SelectedColor = item.Color;
}
else
{
SelectedColor = colorPanel1.SelectedColor;
}
}
public ColorChooser()
{
InitializeComponent();
foreach (PropertyInfo prop in typeof(SystemColors).GetProperties())
{
ColorListBoxItem item = new ColorListBoxItem();
if (prop.PropertyType.FullName == "System.Drawing.Color")
{
item.Color = Color.FromName(prop.Name);
colorListBox1.Items.Add(item);
}
}
var webColors =
Enum.GetValues(typeof(KnownColor))
.Cast <KnownColor>()
.Where(k => k >= KnownColor.Transparent && k < KnownColor.ButtonFace) //Exclude system colors
.Select(k => Color.FromKnownColor(k))
.OrderBy(c => c.GetHue())
.ThenBy(c => c.GetSaturation())
.ThenBy(c => c.GetBrightness());
List <Color> colors = webColors.ToList();
colors.Remove(Color.Transparent);
colors.Remove(Color.Black);
colors.Remove(Color.White);
colors.Insert(0, Color.Transparent);
colors.Insert(1, Color.Black);
colors.Insert(2, Color.White);
foreach (Color c in colors)
{
ColorListBoxItem item = new ColorListBoxItem();
item.Color = c;
colorListBox2.Items.Add(item);
}
colorPanel1.SelectedColorChanged += ColorPanel1_SelectedColorChanged;
}