private void pnlColorBar_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
//Draw bar
g.FillRectangle(_barBrush, pnlColorBar.ClientRectangle);
//Draw indicator
ARGBPixel p = ((ARGBPixel)(new HSVPixel(_hsv.H, 100, 100))).Inverse();
int y = (int)(_hsv.H / 360.0f * (pnlColorBar.Height - 1));
Rectangle r = new Rectangle(-1, y - 2, pnlColorBar.Width + 1, 4);
using (Pen pen = new Pen((Color)p))
g.DrawRectangle(pen, r);
r.Y += 1;
r.Height -= 2;
p = p.Lighten(64);
using (Pen pen = new Pen((Color)p))
g.DrawRectangle(pen, r);
}
private void pnlColorBox_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
//Update brush if color changed
if (_brushH != _hsv.H)
{
_boxColors[0] = _boxColors[4] = (Color)(new HSVPixel(_hsv.H, 100, 100));
_squareBrush.SurroundColors = _boxColors;
_squareBrush.CenterColor = (Color)(new HSVPixel(_hsv.H, 50, 50));
_brushH = _hsv.H;
}
//Draw square
//g.FillPath(_squareBrush, _squarePath);
g.FillRectangle(_squareBrush, pnlColorBox.ClientRectangle);
//Draw indicator
int x = (int)(_hsv.V / 100.0f * pnlColorBox.Width);
int y = (int)((100 - _hsv.S) / 100.0f * pnlColorBox.Height);
Rectangle r = new Rectangle(x - 3, y - 3, 6, 6);
ARGBPixel p = _rgb.Inverse();
p.A = 255;
using (Pen pen = new Pen((Color)p))
g.DrawEllipse(pen, r);
r.X -= 1;
r.Y -= 1;
r.Width += 2;
r.Height += 2;
p = p.Lighten(64);
using (Pen pen = new Pen((Color)p))
g.DrawEllipse(pen, r);
}
private void pnlAlpha_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
//Draw bar
g.FillRectangle(_alphaBrush, pnlAlpha.ClientRectangle);
//Draw indicator
byte col = (byte)(255 - _rgb.A);
ARGBPixel p = new ARGBPixel(255, col, col, col);
int y = (int)(col / 255.0f * (pnlAlpha.Height - 1));
Rectangle r = new Rectangle(-1, y - 2, pnlAlpha.Width + 1, 4);
using (Pen pen = new Pen((Color)p))
g.DrawRectangle(pen, r);
p.Lighten(64);
r.Y += 1;
r.Height -= 2;
using (Pen pen = new Pen((Color)p))
g.DrawRectangle(pen, r);
}
