/// <summary>
/// Displays an color picker dialog.
/// <para>REQUIREMENT: calling thread must be STAThread.</para>
/// </summary>
/// <param name="defaultColor">Default color.</param>
/// <returns>Picked or default color in case the selection is cancelled.</returns>
public static Bgr<byte> PickColor(Bgr<byte> defaultColor = default(Bgr<byte>))
{
Bgr<byte> color = defaultColor;
using (ColorDialog dialog = new ColorDialog())
{
dialog.Color = new Eto.Drawing.Color { Bb = defaultColor.B, Gb = defaultColor.G, Rb = defaultColor.R };
var result = dialog.ShowDialog(null);
if (result == DialogResult.Ok)
color = new Bgr<byte> { B = (byte)dialog.Color.Bb, G = (byte)dialog.Color.Gb, R = (byte)dialog.Color.Rb };
}
return color;
}
Control PickColor ()
{
var button = new Button { Text = "Pick Color" };
button.Click += delegate {
var dialog = new ColorDialog ();
dialog.ColorChanged += delegate {
// you need to handle this event for OS X, where the dialog is a floating window
Log.Write (dialog, "ColorChanged, Color: {0}", dialog.Color);
};
var result = dialog.ShowDialog (this.ParentWindow);
if (result == DialogResult.Ok) {
Log.Write (dialog, "Result: {0}, Color: {1}", result, dialog.Color);
}
else
Log.Write (dialog, "Result: {0}", result);
};
return button;
}
Control PickColorWithStartingColor()
{
var button = new Button { Text = "Pick Color with initial starting color (green)" };
button.Click += delegate
{
var dialog = new ColorDialog
{
Color = Colors.Lime
};
dialog.ColorChanged += delegate
{
// need to handle this event for OS X, where the dialog is a floating window
Log.Write(dialog, "ColorChanged, Color: {0}", dialog.Color);
};
var result = dialog.ShowDialog(ParentWindow);
if (result == DialogResult.Ok)
{
Log.Write(dialog, "Result: {0}, Color: {1}", result, dialog.Color);
}
else
Log.Write(dialog, "Result: {0}", result);
};
return button;
}
/// <summary>
/// Raises the color changed event.
/// </summary>
public void OnColorChanged(ColorDialog widget, EventArgs e)
{
widget.Platform.Invoke(() => widget.OnColorChanged(e));
}
/// <summary>
/// Raises the color changed event.
/// </summary>
public void OnColorChanged(ColorDialog widget, EventArgs e)
{
widget.Platform.Invoke(() => widget.OnColorChanged(e));
}
