/// <summary>
/// The update thumb position.
/// </summary>
private void UpdateThumbPosition()
{
this.thumbTransform.X = this.Saturation * 0.01 * this.ActualWidth;
this.thumbTransform.Y = (100 - this.Value) * 0.01 * this.ActualHeight;
this.SelectedColor = ColorHelper.HsvToColor(this.Hue / 360.0, this.Saturation / 100.0, this.Value / 100.0);
}
/// <summary>
/// Converts a value.
/// </summary>
/// <param name="value">The value produced by the binding source.</param>
/// <param name="targetType">The type of the binding target property.</param>
/// <param name="parameter">The converter parameter to use.</param>
/// <param name="culture">The culture to use in the converter.</param>
/// <returns>
/// A converted value. If the method returns <c>null</c>, the valid <c>null</c> value is used.
/// </returns>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var doubleValue = (double)value;
return(ColorHelper.HsvToColor(doubleValue / 360, 1, 1));
}
/// <summary>
/// The update selected color.
/// </summary>
private void UpdateSelectedColor()
{
this.SelectedColor = ColorHelper.HsvToColor(this.Hue / 360.0, this.Saturation / 100.0, this.Value / 100.0);
// ColorUtils.FireSelectedColorChangedEvent(this, SelectedColorChangedEvent, oldColor, newColor);
}
/// <summary>
/// Called when a color component is changed.
/// </summary>
/// <param name="e">
/// The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.
/// </param>
protected virtual void OnComponentChanged(DependencyPropertyChangedEventArgs e)
{
if (this.withinColorChange)
{
return;
}
if (this.SelectedColor == null)
{
return;
}
Debug.WriteLine("ColorPickerPanel.OnComponentChanged {0}", this.SelectedColor);
var color = this.SelectedColor.Value;
this.withinComponentChange = true;
this.withinColorChange = true;
var i = Convert.ToInt32(e.NewValue);
byte x = i <= 255 ? (byte)i : (byte)255;
if (e.Property == AlphaProperty)
{
this.SelectedColor = Color.FromArgb(x, color.R, color.G, color.B);
}
if (e.Property == RedProperty)
{
this.SelectedColor = Color.FromArgb(color.A, x, color.G, color.B);
this.UpdateHSV(color);
}
if (e.Property == GreenProperty)
{
this.SelectedColor = Color.FromArgb(color.A, color.R, x, color.B);
this.UpdateHSV(color);
}
if (e.Property == BlueProperty)
{
this.SelectedColor = Color.FromArgb(color.A, color.R, color.G, x);
this.UpdateHSV(color);
}
var hsv = color.ColorToHsv();
double y = Convert.ToDouble(e.NewValue);
if (e.Property == HueProperty)
{
this.SelectedColor = ColorHelper.HsvToColor(y / 360, hsv[1], hsv[2], color.A / 255.0);
this.UpdateRGB(this.SelectedColor.Value);
}
if (e.Property == SaturationProperty)
{
this.SelectedColor = ColorHelper.HsvToColor(hsv[0], y / 100, hsv[2], color.A / 255.0);
this.UpdateRGB(this.SelectedColor.Value);
}
if (e.Property == BrightnessProperty)
{
this.SelectedColor = ColorHelper.HsvToColor(hsv[0], hsv[1], y / 100, color.A / 255.0);
this.UpdateRGB(this.SelectedColor.Value);
}
this.withinColorChange = false;
this.withinComponentChange = false;
}