public static GraphicsPath RoundCorner(Rectangle rect, int radius, RectSides sides)
{
GraphicsPath gfxPath = new GraphicsPath();
if (sides.left)
{
gfxPath.AddLine(rect.X, rect.Bottom - radius, rect.X, rect.Y + radius);
gfxPath.AddLine(rect.X, rect.Y + radius, rect.X + radius, rect.Y);
}
if (sides.top)
{
gfxPath.AddLine(rect.X + radius, rect.Y, rect.Right - radius, rect.Y);
gfxPath.AddLine(rect.Right - radius, rect.Y, rect.Right, rect.Y + radius);
}
if (sides.right)
{
gfxPath.AddLine(rect.Right, rect.Y + radius, rect.Right, rect.Bottom - radius);
gfxPath.AddLine(rect.Right, rect.Bottom - radius, rect.Right - radius, rect.Bottom);
}
if (sides.bottom)
{
gfxPath.AddLine(rect.Right - radius, rect.Bottom, rect.X + radius, rect.Bottom);
gfxPath.AddLine(rect.X + radius, rect.Bottom, rect.X, rect.Bottom - radius);
gfxPath.AddLine(rect.X, rect.Bottom - radius, rect.X, rect.Bottom - radius - 1);
}
return(gfxPath);
}
public static GraphicsPath RectSides(Rectangle rect, RectSides sides)
{
GraphicsPath gfxPath = new GraphicsPath();
if (sides.left)
{
gfxPath.AddLine(rect.X, rect.Y + rect.Height, rect.X, rect.Y);
}
if (sides.top)
{
gfxPath.AddLine(rect.X, rect.Y, rect.X + rect.Width, rect.Y);
}
if (sides.right)
{
gfxPath.AddLine(rect.X + rect.Width, rect.Y, rect.X + rect.Width, rect.Y + rect.Height);
}
if (sides.bottom)
{
gfxPath.AddLine(rect.X + rect.Width, rect.Y + rect.Height, rect.X, rect.Y + rect.Height);
}
return(gfxPath);
}
public static void DrawRectangle(Rectangle rect, Graphics graf, Color color, int width, RectSides sides)
{
DrawRectangle(rect, graf, color, width, 0, sides);
}
public static void DrawRectangle(Rectangle rect, Graphics graf, Color color, int width, int cornerRadius, RectSides sides)
{
if (width <= 0)
{
return;
}
int h = width / 2;
int dz = (2 * h == width) ? 0 : 1;
int h2 = 2 * h + dz;
var drawRect = new Rectangle(rect.Left + h, rect.Top + h, rect.Width - h2, rect.Height - h2);
if (cornerRadius <= 0 && sides.Full)
{
graf.DrawRectangle(new Pen(color, width), drawRect);
}
else
{
GraphicsPath gfxPath;
if (cornerRadius <= 0)
{
gfxPath = DrawPath.RectSides(drawRect, sides);
}
else
{
gfxPath = DrawPath.RoundCorner(drawRect, cornerRadius, sides);
}
graf.DrawPath(new Pen(color, width), gfxPath);
}
}
