On Tue, Sep 9, 2008 at 9:39 AM, Edgar J. De Cleene <[EMAIL PROTECTED]> wrote: > > > > El 9/9/08 4:45 AM, "Ian J Cottee" <[EMAIL PROTECTED]> escribió: > >> Hi all >> >> I've spent the last month or so working through the Squeak By Example >> book and now need to actually try to do something in order to make it >> all gel in my mind. My current requirement seems quite 'simple' to >> describe but I am not quite sure where to go from here. >> >> For a very simple first step I want to take two text boxes, draw an >> arrow between them and then, when I switch the box 'on' - box1 will >> send an item (represented as a simple shape) along the arrow to box2. >> When it reaches box2, box1 will send the next. As each item reaches >> box2, box2 will be doing 'something'. This is the first stage of >> modelling a production system where items are sent from machine to >> machine down a production line. >> >> I've found the Connectors framework which solves the problem of >> drawing boxes and linking them together. What I can't work out is that >> if I have a box, how do I know what arrows are connected to it? How do >> I know if the arrow is pointing out of the box or into the box (so >> should I be sending down it or receiving through it) and how do I >> animate that arrow to show an item passing down it? >> >> I guess the main question is (first of all) just working out what >> arrows are joined to a box. Having browsed through the classes >> NCTextRectangleMorph (my current box class) and NCAAConnectorMorph (my >> current arrow class) I'm none the wiser. Is there any documentation >> for programming the Connectors framework? I've googled but turned >> nothing up so far. >> >> Any pointers/advice gratefully received. >> >> Ian > See my LogicCircus > http://wiki.squeak.org/squeak/5991 > > Click on picture and download the .pr > > It's a very bacic Logic Gates simulator, which "wire" components when you > click from first to second. > If you study , could solve some of your needs IMHO. > > Edgar
Many thanks for the pointer Edgar. I've installed and taken a look. It's obviously a lot easier to understand as a unit than the Connectors framework and if I don't make any progress I may well use your simulator as a starting point instead. I'll let you know how I get on :) Many thanks again Ian _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners