package oripa.paint.copypaste;
import javax.vecmath.Vector2d;
import oripa.paint.core.PaintContext;
class OriginHolder {
//--------------------------------------------------------------
private static OriginHolder holder = null;
private OriginHolder(){}
public static OriginHolder getInstance(){
if(holder == null){
holder = new OriginHolder();
}
return holder;
}
//--------------------------------------------------------------
private Vector2d origin = null;
public void setOrigin(Vector2d p){
origin = p;
}
public void resetOrigin(PaintContext context){
if(origin == null){
if(context.getLineCount() > 0){
origin = context.getLine(0).p0;
}
}
}
public Vector2d getOrigin(PaintContext context){
resetOrigin(context);
return origin;
}
}