public void Draw(
)
{
AHSL hsl;
int width = (int)imgBorder.ActualWidth;
int height = (int)imgBorder.ActualHeight;
#if !SILVERLIGHT
int[] pixels = new int[width * height];
#endif
var bitmap = Compat.CreateBitmap(width, height);
for (int x = 0; x < width; ++x)
{
for (int y = 0; y < height; ++y)
{
hsl = new AHSL(x / (width / 360.0), Saturation, 1.0 - (((double)y) / height), 1.0);
#if !SILVERLIGHT
pixels[y * width + x] = hsl.Double().ToARGB32();
#else
bitmap.Pixels[y * width + x] = hsl.Double().ToARGB32();
#endif
}
}
#if !SILVERLIGHT
bitmap.WritePixels(new Int32Rect(0, 0, width, height), pixels, Compat.GetBitmapStride(width), 0);
#endif
spectrum.Height = height;
spectrum.Width = width;
spectrum.Source = bitmap;
}
private void SetPointEvents(
ColorPinpoint e
)
{
var drag = false;
PaletteColor selected = null;
Point? prev = null;
Point shift = new Point();
e.MouseLeftButtonDown += (s, ev) =>
{
drag = true;
prev = null;
shift = ev.GetPosition(s as FrameworkElement);
SelectColor(s as ColorPinpoint);
selected = Palette.Colors[(int)(s as FrameworkElement).Tag];
e.CaptureMouse();
};
e.MouseLeftButtonUp += (s, ev) =>
{
drag = false;
e.ReleaseMouseCapture();
};
e.MouseMove += (s, ev) =>
{
if (drag)
{
double width = spectrum.Width;
double height = spectrum.Height;
double diam = (s as ColorPinpoint).ActualWidth;
Point p = ev.GetPosition(canvasSpectrum);
p.X = p.X - shift.X + diam / 2;
p.Y = p.Y - shift.Y + diam / 2;
AHSL hsl = selected.DoubleColor.ToAHSL();
double x = Math.Min(Math.Max(p.X, 0), width);
double y = Math.Min(Math.Max(p.Y, 0), height);
hsl.Luminance = 1 - (y / height);
hsl.HueDegree = 360 * (x / width);
hsl.Saturation = Saturation;
if (prev != null)
{
selected.DoubleColor = hsl.Double();
if (ColorsUpdated != null)
{
ColorsUpdated(this, EventArgs.Empty);
}
}
prev = p;
}
};
}
