private void SetPickedColor(Color pColor)
{
Bitmap cView = new Bitmap(colorBox.Width, colorBox.Height);
using (Graphics g = Graphics.FromImage(cView))
{
g.Clear(pColor);
using (SolidBrush sb = new SolidBrush(ColorUtils.Invert(pColor)))
{
using (Pen p = new Pen(sb, 1))
{
g.DrawRectangle(p, new Rectangle(1, 1, cView.Width - 3, cView.Height - 3));
}
}
}
HSLColor hlc = HSLColor.FromColor(pColor);
HSVColor hvc = HSVColor.FromColor(pColor);
RGBColor rgc = RGBColor.FromColor(pColor);
HEXColor hxc = HEXColor.FromColor(pColor);
lbl_HTML.Text = hxc.ToString();
lbl_RGB.Text = rgc.ToString();
lbl_HSL.Text = hlc.ToString();
lbl_HSV.Text = hvc.ToString();
colorBox.Image?.Dispose();
colorBox.Image = cView;
}
// Could have been a dependency property that pieces of the UI bind to, but the interaction is complex enough
// to make this the easier route:
public void SetCurrentColor(HSVColor value)
{
this.currentColor = value;
Color rgbColor = ColorConverter.HSVToRGB(value);
this.ResetButton.IsEnabled = true;
this.PreviewTile.Fill = new SolidColorBrush(rgbColor);
// Only update the TextBox if this isn't being done in response to typing. That prevents
// text like "red" from changing to "#FF0000" and prevents the cursor from jumping to the beginning.
if (!keyPressed)
this.ColorTextBox.Text = value.ToString();
this.HueGradientStop.Color = ColorConverter.HSVToRGB(new HSVColor { A = 255, H = value.H, S = 1, V = 1 });
Canvas.SetLeft(this.HueThumb, (value.H / 360) * this.HueSlider.Width - this.HueThumb.Width / 2);
// Update AlphaSlider and AlphaThumb:
Color opaqueColor = rgbColor;
opaqueColor.A = 255;
Color transparentColor = rgbColor;
transparentColor.A = 0;
this.alphaGradientStop.Color = opaqueColor;
this.alphaGradientStop2.Color = transparentColor;
Canvas.SetLeft(this.AlphaThumb, ((double)value.A / 255) * this.AlphaSlider.Width - this.AlphaThumb.Width / 2);
// Update SaturationValueMap:
Point saturationValuePoint = new Point(value.S * this.SaturationValueMap.Width, value.V * this.SaturationValueMap.Height);
this.SelectionLineX1.X1 = this.SelectionLineX1.X2 = saturationValuePoint.X;
this.SelectionLineX2.X1 = this.SelectionLineX2.X2 = saturationValuePoint.X;
this.SelectionLineY1.Y1 = this.SelectionLineY1.Y2 = saturationValuePoint.Y;
this.SelectionLineY2.Y1 = this.SelectionLineY2.Y2 = saturationValuePoint.Y;
}