Hello people i'm brazilian, so not notice in my English.
I'm newbie in QT, but a little experienced in programming with c/c++
I'm modeling streets with graphs, and each street have a value(cost).
I'm working with basedata to store data's street and displayed the graph(street map) with openGL.
The user can change the cost, but righ now only one at a time. I want that the User can select more than one street (which will have the same cost) and change the value, and the value change in all selected streets. I dont know how to do it.
Please help me.