internal void scroll(int delta, Pnt view)
{
Pnt lastWorldPos = WorldPos;
Pnt lastViewPos = ViewPos;
ViewPos = view;
foreach (var c in controllers)
{
c.scroll(delta, lastWorldPos, lastViewPos);
}
}
protected override void OnPaint(PaintEventArgs e)
{
background.paint(Size, e.ClipRectangle, e.Graphics);
Pnt drawingSize = this.drawingSize * ZoomScale;
e.Graphics.DrawRectangle(Pens.Black, displacement.X, displacement.Y, drawingSize.X, drawingSize.Y);
using (Brush b = new SolidBrush(paperColor))
{
e.Graphics.FillRectangle(b, displacement.X, displacement.Y, drawingSize.X, drawingSize.Y);
}
}
internal void move(Pnt view)
{
Pnt lastWorldPos = WorldPos;
Pnt lastViewPos = ViewPos;
ViewPos = view;
Pnt dstWorld = WorldPos - lastWorldPos;
Pnt dstView = ViewPos - lastViewPos;
foreach (var c in controllers)
{
c.move(lastWorldPos, lastViewPos, dstWorld, dstView);
}
}
public virtual void move(Pnt lastWorldPos, Pnt lastViewPos, Pnt dstWorld, Pnt dstView)
{
}
public virtual void scroll(int delta, Pnt worldPos, Pnt viewPos)
{
}
internal void translate(Pnt move)
{
displacement += move;
Invalidate();
}
public void CenterView()
{
displacement = (new Pnt(Width, Height) - drawingSize) / 2;
}
internal Pnt viewToWorld(Pnt view)
{
return(new Pnt(view.X, view.Y) * ZoomScale);
}
