/// <summary>
/// Updates the Color property any time the text changes
/// </summary>
protected override void OnTextChanged(System.Windows.Controls.TextChangedEventArgs e)
{
base.OnTextChanged(e);
ColorSetInternally = true;
Color = ColorPickerUtil.ColorFromString(this.Text);
ColorBrush = new SolidColorBrush(Color);
ColorSetInternally = false;
}
/// <summary>
/// Shared property changed callback to update the Color property
/// </summary>
public static void UpdateColorHSB(object o, DependencyPropertyChangedEventArgs e)
{
ColorPicker c = (ColorPicker)o;
Color n = ColorPickerUtil.ColorFromAHSB(c.Alpha, c.Hue, c.Saturation, c.Brightness);
c.HSBSetInternally = true;
c.Color = n;
c.ColorBrush = new SolidColorBrush(n);
c.HSBSetInternally = false;
}
public static void OnColorChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ColorPicker c = (ColorPicker)o;
if (e.NewValue is Color)
{
Color color = (Color)e.NewValue;
if (!c.HSBSetInternally)
{
// update HSB value based on new value of color
double H = 0;
double S = 0;
double B = 0;
ColorPickerUtil.HSBFromColor(color, ref H, ref S, ref B);
c.HSBSetInternally = true;
c.Alpha = (double)(color.A / 255);
c.Hue = H;
c.Saturation = S;
c.Brightness = B;
c.HSBSetInternally = false;
}
if (!c.RGBSetInternally)
{
// update RGB value based on new value of color
c.RGBSetInternally = true;
c.A = color.A;
c.R = color.R;
c.G = color.G;
c.B = color.B;
c.RGBSetInternally = false;
}
c.RaiseColorChangedEvent((Color)e.NewValue);
}
}
protected override void OnRender(DrawingContext dc)
{
LinearGradientBrush h = new LinearGradientBrush();
h.StartPoint = new Point(0, 0);
h.EndPoint = new Point(1, 0);
h.GradientStops.Add(new GradientStop(Colors.White, 0.00));
h.GradientStops.Add(new GradientStop(ColorPickerUtil.ColorFromHSB(Hue, 1, 1), 1.0));
dc.DrawRectangle(h, null, new Rect(0, 0, ActualWidth, ActualHeight));
LinearGradientBrush v = new LinearGradientBrush();
v.StartPoint = new Point(0, 0);
v.EndPoint = new Point(0, 1);
v.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0, 0, 0), 1.00));
v.GradientStops.Add(new GradientStop(Color.FromArgb(0x80, 0, 0, 0), 0.50));
v.GradientStops.Add(new GradientStop(Color.FromArgb(0x00, 0, 0, 0), 0.00));
dc.DrawRectangle(v, null, new Rect(0, 0, ActualWidth, ActualHeight));
UpdateSaturationOffset();
UpdateBrightnessOffset();
}
public void UpdateColor()
{
Color = ColorPickerUtil.ColorFromHSB(Hue, Saturation, Brightness);
ColorBrush = new SolidColorBrush(Color);
}
private void UpdateColor()
{
Color = ColorPickerUtil.ColorFromHSB(Hue, 1, 1);
ColorBrush = new SolidColorBrush(Color);
}
