/// <summary>
/// Highlight the specified icon with the specified color.
/// </summary>
/// <param name="icn">Input icon.</param>
/// <param name="liteColor">Highlight base color.</param>
/// <returns>A new highlighted Image object.</returns>
/// <remarks></remarks>
public static Image HiliteIcon(Icon icn, Color liteColor)
{
var n = new Bitmap(icn.Width, icn.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
var g = System.Drawing.Graphics.FromImage(n);
int lc = liteColor.ToArgb();
g.FillRectangle(Brushes.Transparent, new Rectangle(0, 0, n.Width, n.Height));
g.DrawIcon(icn, 0, 0);
g.Dispose();
var bm = new System.Drawing.Imaging.BitmapData();
n.LockBits(new Rectangle(0, 0, n.Width, n.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb, bm);
int[] b;
int i;
int c;
b = new int[(bm.Width * bm.Height)];
// take the unmanaged memory and make it something manageable and VB-like.
Marshal.Copy(bm.Scan0, b, 0, bm.Stride * bm.Height);
// NativeLib.Native.MemCpy(bm.Scan0, b, bm.Stride * bm.Height)
c = b.Length;
int stp = (int)(bm.Stride / (double)bm.Width);
var hsv = new HSVDATA();
var hsv2 = new HSVDATA();
// convert the color to HSV.
ColorMath.ColorToHSV(liteColor, ref hsv);
for (i = 0; i < c; i++)
{
if (b[i] == 0)
{
continue;
}
ColorMath.ColorToHSV(Color.FromArgb(b[i]), ref hsv2);
hsv2.Hue = hsv.Hue;
hsv2.Saturation = hsv.Saturation;
hsv2.Value *= 1.1d;
b[i] = ColorMath.HSVToColor(hsv2);
}
Marshal.Copy(b, 0, bm.Scan0, bm.Stride * bm.Height);
n.UnlockBits(bm);
return(n);
}
private void SetSelectedColor(UniColor?selc = null)
{
UniColor clr;
if (selc != null)
{
clr = (UniColor)selc;
SelectedColor = Color.FromArgb(clr.A, clr.R, clr.G, clr.B);
return;
}
else if (SelectedColor == null)
{
SelectedColorName = null;
Point.Visibility = Surround.Visibility = Visibility.Hidden;
HuePicker.Visibility = Visibility.Hidden;
return;
}
clr = ((Color)SelectedColor).GetUniColor();
var nc = NamedColor.FindColor(clr, NameResolution == ColorNameResolution.Closest);
if (nc != null)
{
SelectedColorName = nc.Name;
}
else
{
SelectedColorName = clr.ToString(UniColorFormatOptions.HexRgbWebFormat);
}
if (cpRender == null)
{
return;
}
HSVDATA hsv1 = ColorToHSV(clr);
HSVDATA hsv2;
HSVDATA hsv3;
HSVDATA? hsv4 = null;
HSVDATA? hsv5 = null;
UniColor uc;
ColorPickerElement cel = new ColorPickerElement();
foreach (var c in cpRender.Elements)
{
uc = c.Color;
hsv2 = ColorToHSV(uc);
hsv3 = (hsv1 - hsv2).Abs();
if (hsv4 == null)
{
hsv4 = hsv3;
}
else if (hsv3 < hsv4)
{
hsv5 = hsv2;
hsv4 = hsv3;
cel = c;
}
if (selc == uc)
{
cel = c;
break;
}
}
if (Mode == ColorPickerMode.HueWheel && !double.IsNaN(ActualWidth) && !double.IsNaN(ActualHeight) && ActualWidth != -1 && ActualHeight != -1)
{
if (hsv5 is HSVDATA hsv)
{
Point.Visibility = Surround.Visibility = Visibility.Hidden;
HuePicker.Visibility = Visibility.Visible;
int hp = HuePointerSize;
PolarCoordinates pc = new PolarCoordinates();
double arc = hsv.Hue - HueOffset;
if (arc < 0)
{
arc += 360;
}
int rad;
int h = (int)ActualHeight, w = (int)ActualWidth;
if (h < w)
{
rad = h / 2;
w = h;
}
else
{
rad = w / 2;
h = w;
}
pc.Arc = arc;
pc.Radius = rad;
var lc = pc.ToScreenCoordinates(new Rect(0, 0, w, h));
if (lc.X < (w / 2))
{
lc.X -= hp;
}
if (lc.Y < (h / 2))
{
lc.Y -= hp;
}
HuePicker.SetValue(Canvas.LeftProperty, lc.X);
HuePicker.SetValue(Canvas.TopProperty, lc.Y);
HueSize.ScaleX = (HuePointerSize / 5);
HueSize.ScaleY = (HuePointerSize / 5);
HueAngle.Angle = pc.Arc;
}
}
else
{
Point.Visibility = Surround.Visibility = Visibility.Visible;
HuePicker.Visibility = Visibility.Hidden;
Point.SetValue(Canvas.LeftProperty, (double)cel.Center.X);
Point.SetValue(Canvas.TopProperty, (double)cel.Center.Y);
Surround.SetValue(Canvas.LeftProperty, (double)cel.Center.X - 8);
Surround.SetValue(Canvas.TopProperty, (double)cel.Center.Y - 8);
Surround.Stroke = Point.Stroke = new SolidColorBrush((Color)SelectedColor);
selectedElement = cel;
}
}
