Storing shapes drawn on canvas

Question

I am trying to make a component for an application which a user can use to create simple UML diagrams . The idea is that the user will drag & drop the shapes on canvas and then add some text to it .

The problem is that I haven't done anything similar before or anything that has to do with graphics(except GUI).

What I would like to ask is how I would be able to store the state of a canvas so it can be serialised and send to another canvas to be redrawn.

Would I be able to save coordinates on a text document and send that document ? If not how such operations are done usually ? Thanks

You mean the source code ? I am making something way more basic. — Giannis, Jan 10 '12 at 20:42
@latusaki something more basic http://stackoverflow.com/a/8588028/714968 — mKorbel, Jan 10 '12 at 22:33

score 3 · Accepted Answer · edited May 23 '17 at 11:55

3

easiest way would be store Graphics Objects in the Set, Map, Vector, Array or in the separate Class that hold your Objects (nice answer to my question by @trashgod) before painting in paintComponent method, then there you can prepare Object for painting (meaning remove, add, modify, clone or compare)

edited May 23 '17 at 11:55

Community

1
1

answered Jan 10 '12 at 15:19

mKorbel

109,525
20
134
319

1

See also [`GraphPanel`](http://sites.google.com/site/drjohnbmatthews/graphpanel). – trashgod Jan 10 '12 at 19:51
Thanks that gives me something to start with ! – Giannis Jan 10 '12 at 23:04

Storing shapes drawn on canvas

1 Answers1