private bool isDrawingObject()
{
if (!__engaged)
{
lineEngaged = new LineEdgePoint();
lineEngaged.__start.Location = mouseLocation.current;
lineEngaged.__start.upstream = __snap;
__engaged = true;
}
else
{
lineEngaged.__end.Location = mouseLocation.current;
lineEngaged.__end.upstream = __snap;
__engaged = false;
DataModel.ActiveLayer.Add(lineEngaged);
lineEngaged.draw(__graphics);
return(true);
}
return(false);
}
private bool isDraggingObject(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && __selectedObject != null)
{
LineEdgePoint line = __selectedObject as LineEdgePoint;
SnapBase p = __selectedObject as SnapBase;
if (__selectedObject is LineEdgePoint)
{
Point diff = mouseLocation.current - new Size(mouseLocation.last);
line.__start.Location += new Size(diff);
line.__end.Location += new Size(diff);
}
else if (__selectedObject is SnapBase && (p.Type == PointType.start || p.Type == PointType.end || p.Type == PointType.center))
{
p.Location = mouseLocation.current;
}
return(true);
}
return(false);
}