public void DrawRoundedRectangle(Point start, double width, double height, double radius, bool strokeAndFill)
{
double x, y;
x = start.X + LineWidth / 2;
y = start.Y + LineWidth / 2;
height -= LineWidth;
width -= LineWidth;
if ((radius > height / 2) || (radius > width / 2))
{
radius = Math.Min(height / 2, width / 2);
}
CContext.MoveTo(x, y + radius);
CContext.Arc(x + radius, y + radius, radius, Math.PI, -Math.PI / 2);
CContext.LineTo(x + width - radius, y);
CContext.Arc(x + width - radius, y + radius, radius, -Math.PI / 2, 0);
CContext.LineTo(x + width, y + height - radius);
CContext.Arc(x + width - radius, y + height - radius, radius, 0, Math.PI / 2);
CContext.LineTo(x + radius, y + height);
CContext.Arc(x + radius, y + height - radius, radius, Math.PI / 2, Math.PI);
CContext.ClosePath();
if (strokeAndFill)
{
StrokeAndFill();
}
}
public void DrawCircleImage(Point center, double radius, Image image)
{
DrawCircle(center, radius);
CContext.Save();
CContext.Arc(center.X, center.Y, radius, 0, 2 * Math.PI);
CContext.Clip();
DrawImage(new Point(center.X - radius, center.Y - radius), radius * 2, radius * 2, image,
ScaleMode.AspectFill, false);
CContext.Restore();
}
public void DrawEllipse(Point center, double axisX, double axisY)
{
double max = Math.Max(axisX, axisY);
CContext.Save();
CContext.Translate(center.X, center.Y);
CContext.Scale(axisX / max, axisY / max);
CContext.Arc(0, 0, max, 0, 2 * Math.PI);
StrokeAndFill();
CContext.Restore();
}
public void ClipRoundRectangle(Point start, double width, double height, double radius)
{
double x, y;
x = start.X;
y = start.Y;
if ((radius > height / 2) || (radius > width / 2))
{
radius = Math.Min(height / 2, width / 2);
}
CContext.MoveTo(x, y + radius);
CContext.Arc(x + radius, y + radius, radius, Math.PI, -Math.PI / 2);
CContext.LineTo(x + width - radius, y);
CContext.Arc(x + width - radius, y + radius, radius, -Math.PI / 2, 0);
CContext.LineTo(x + width, y + height - radius);
CContext.Arc(x + width - radius, y + height - radius, radius, 0, Math.PI / 2);
CContext.LineTo(x + radius, y + height);
CContext.Arc(x + radius, y + height - radius, radius, Math.PI / 2, Math.PI);
CContext.ClosePath();
CContext.Clip();
}
public void DrawCircle(Point center, double radius)
{
CContext.Arc(center.X, center.Y, radius, 0, 2 * Math.PI);
StrokeAndFill();
}
public void DrawArc(Point center, double radius, double angle1, double angle2)
{
CContext.Arc(center.X, center.Y, radius, angle1, angle2);
StrokeAndFill(false);
}
public void ClipCircle(Point center, double radius)
{
CContext.Arc(center.X, center.Y, radius, 0, 2 * Math.PI);
CContext.Clip();
}
