public override void ToWorldSpace(ViewPort vp)
{
if (worldPoints == null)
{
worldPoints = new List <Point>();
}
else
{
worldPoints.Clear();
}
for (int i = 0; i < points.Count; i++)
{
var point = new Point((points[i].X - vp.StartPoint.X) * vp.Scale,
(points[i].Y - vp.StartPoint.Y) * vp.Scale);
worldPoints.Add(point);
}
}
override public void Draw(DrawingContext drawingContext, ViewPort vp)
{
var geometry = new StreamGeometry();
using (StreamGeometryContext ctx = geometry.Open())
{
ctx.BeginFigure(worldPoints[0], true, false);
foreach (var point in worldPoints)
{
ctx.LineTo(point, true, true);
}
}
var center = new Point(geometry.Bounds.X + geometry.Bounds.Width / 2, geometry.Bounds.Y + geometry.Bounds.Height / 2);
drawingContext.PushTransform(new RotateTransform(rotationAngle, center.X, center.Y));
drawingContext.PushTransform(new ScaleTransform(scale, scale, center.X, center.Y));
drawingContext.PushTransform(new TranslateTransform(offsetX, offsetY));
drawingContext.DrawGeometry(brush, p, geometry);
}
public override void MouseRightUpHandler(ViewPort vp, Point point)
{
StartPoint = point;
if (vp.Scale > 0.1)
{
double NewWidth = (vp.EndPoint.X - vp.StartPoint.X) * 2;
double NewHeight = (vp.EndPoint.Y - vp.StartPoint.Y) * 2;
vp.StartPoint = new Point()
{
X = StartPoint.X / vp.Scale + vp.StartPoint.X - NewWidth / 2,
Y = StartPoint.Y / vp.Scale + vp.StartPoint.Y - NewHeight / 2
};
vp.EndPoint = new Point()
{
X = vp.StartPoint.X + NewWidth,
Y = vp.StartPoint.Y + NewHeight
};
vp.Scale /= 2;
}
}
public override void MouseUpHandler(ViewPort vp)
{
currentState = States.initial;
PaintController.figures.RemoveLast();
if (vp.Scale > 50)
{
return;
}
if (Point.Subtract(StartPoint, EndPoint).Length > 2)
{
double scaleX = (vp.EndPoint.X - vp.StartPoint.X) / (EndPoint.X - StartPoint.X);
double scaleY = (vp.EndPoint.Y - vp.StartPoint.Y) / (EndPoint.Y - StartPoint.Y);
double scale = (scaleX + scaleY) / 2;
vp.Scale *= scale;
vp.StartPoint = StartPoint;
vp.EndPoint = EndPoint;
}
else
{
double NewWidth = (vp.EndPoint.X - vp.StartPoint.X) / 2;
double NewHeight = (vp.EndPoint.Y - vp.StartPoint.Y) / 2;
vp.StartPoint = new Point()
{
X = StartPoint.X - NewWidth / 2,
Y = StartPoint.Y - NewHeight / 2
};
vp.EndPoint = new Point()
{
X = vp.StartPoint.X + NewWidth,
Y = vp.StartPoint.Y + NewHeight
};
vp.Scale *= 2;
}
}
public virtual void EditSize(Point point, ViewPort vp)
{
point = ToLocalSpace(point, vp);
secondPoint = point;
}
public Point ToLocalSpace(Point point, ViewPort vp) => new Point(point.X / vp.Scale + vp.StartPoint.X, point.Y / vp.Scale + vp.StartPoint.Y);
public abstract void Draw(DrawingContext drawingContext, ViewPort vp);
public override void MouseDownHandler(Point point1, ViewPort vp)
{
StartPoint = point1;
currentState = States.mouseClick;
}
override abstract public void Draw(DrawingContext drawingContext, ViewPort vp);
public override void EditSize(Point point, ViewPort vp)
{
point = ToLocalSpace(point, vp);
points.Add(point);
}
public virtual void MouseRightUpHandler(ViewPort vp, Point point)
{
}
public virtual void MouseUpHandler(ViewPort vp)
{
currentState = States.initial;
}
public abstract void MouseMoveHandler(Point secondPoint, ViewPort vp);
public abstract void MouseDownHandler(Point firstPoint, ViewPort vp);
