/// <summary>
/// Draws the grid center middle of the region.
/// </summary>
public static void Draw(ColorGridStyle style, Graphics graphics, Size drawRegion, bool enabled)
{
float cellDim = GetCellDimension(style, drawRegion);
float xOffset = (drawRegion.Width / 2f) - style.Colors.GetLength(0) * cellDim / 2;
float yOffset = (drawRegion.Height / 2f) - style.Colors.GetLength(1) * cellDim / 2;
float spacing = style.CellSpacingScale * cellDim;
var master = GetMasterRectangle(style, drawRegion);
var backPath = RoundedRectangleF.Create(master, style.RoundedRadius);
graphics.FillPath(enabled ? Brushes.Black : Brushes.DimGray, backPath);
for (int row = 0; row < style.Colors.GetLength(0); row++)
{
for (int clm = 0; clm < style.Colors.GetLength(1); clm++)
{
float dim = cellDim - spacing * 2;
var brush = new SolidBrush(style.Colors[clm, row]);
if (!enabled)
{
brush.Color = brush.Color.Desaturate();
}
float x = (xOffset + cellDim * row) + spacing;
float y = (yOffset + cellDim * clm) + spacing;
var path = RoundedRectangleF.Create(x, y, dim, dim, style.RoundedRadius);
graphics.FillPath(brush, path);
brush.Dispose();
}
}
}
protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
e.Graphics.Clear(GetBackColor());
ColorGridRendering.Draw(Style, e.Graphics, ClientSize, Enabled);
if (ClickMode == ClickMode.ColorSet && hoveredRect != Rectangle.Empty)
{
var path = RoundedRectangleF.Create(hoveredRect, RoundedRadius);
Pen pen = new Pen(Color.White, 3f);
pen.Alignment = PenAlignment.Center;
e.Graphics.DrawPath(pen, path);
pen.Dispose();
}
else if (ClickMode == ClickMode.Rotation)
{
var rect = ColorGridRendering.GetMasterRectangle(Style, Size);
if (rect.Contains(PointToClient(Cursor.Position)))
{
ControlPaint.DrawBorder3D(e.Graphics, Rectangle.Truncate(rect),
Border3DStyle.Flat);
}
}
}
