private static Size GetPrimitiveSize(PathPrimitive primitive, out Point min)
{
var minX = 0.0;
var minY = 0.0;
var maxX = 0.0;
var maxY = 0.0;
void updateMinMax(Point point)
{
minX = Math.Min(minX, point.x);
minY = Math.Min(minY, point.y);
maxX = Math.Max(maxX, point.x);
maxY = Math.Max(maxY, point.y);
}
foreach (var command in primitive.Path)
{
switch (command.Type)
{
case PathCommandType.PathMoveTo:
{
var cmd = (MoveToCommand)command;
var point = cmd.Point;
updateMinMax(point);
break;
}
case PathCommandType.PathLineTo:
{
var cmd = (LineToCommand)command;
var point = cmd.Point;
updateMinMax(point);
break;
}
case PathCommandType.PathCurveTo:
{
var cmd = (CurveToCommand)command;
var c0 = cmd.ControlPoint0;
var c1 = cmd.ControlPoint1;
var end = cmd.EndPoint;
updateMinMax(c0);
updateMinMax(c1);
updateMinMax(end);
break;
}
case PathCommandType.PathArc:
{
var cmd = (ArcCommand)command;
var c0 = cmd.Center;
var v = new Vector(cmd.Radius, cmd.Radius);
var minPoint = c0 - v;
var maxPoint = c0 + v;
updateMinMax(minPoint);
updateMinMax(maxPoint);
break;
}
case PathCommandType.PathClosePath:
case PathCommandType.Stroke:
case PathCommandType.Fill:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
min = new Point(minX, minY);
return(new Size(maxX - minX, maxY - minY));
}
public static PointD ToPointD(this ImGui.Common.Primitive.Point point)
{
return(new PointD(point.x, point.y));
}
