implement line in simplegraph

[marquessbr]

Dear Kambiz

I got the simplegraph component and demo but I need to implement a new object to design lines like polyline, but this line need to be a continuous line for design graphics, e.g. rectangles, triangles, etc.
my idea is to click in a point in the grid and design a line at the next click, so if I double click the mouse the line is complete, but if I change the direction of my mouse coursor, the line with is designed follow the cursor, and if I double click the mouse, the figure is complete

thanks.