On Thu, 2007-07-19 at 17:17 +0200, Günter Dannoritzer wrote: > Hi, > > I have been using dia now for a while and one drawing type I am using it > for quite often is that of block diagrams. Now I would like to get a new > shape that speeds up the drawing of these block diagrams and wonder how > to create one. > > To give you an idea what type of block diagram I am looking for I picked > a data sheet from the web: > > http://www.aldec.com/products/ipcores/_datasheets/Aldec/IC-DCT.pdf > > On page 2 of that document they show a block diagram and I would like to > have a shape that supports the creation of these blocks. > > I am using dia 0.96.1 and I know there is one shape, the data shape in > AADL, that comes pretty close to what I am looking for. > > What is missing in that shape is that I can add the port name and it > gets displayed in the block.
That could be done reasonably easily, unless you want to do fancy avoidance of overlapping and autoresize, which would make it tougher. > Also I would like a text field for the block name, which is now > available in the AADL block, and a second text field outside the block > for the instance name. That part is not too tricky. > A minor changed would be to move the arrow of the in port outside of the > block line and for an out port not have an arrow, just a connection > point I can connect a line to. You're probably wanting to use Add Connection Point instead and then have the arrowhead be on the line instead of part of the port. > Now the cream would be to have a dialog that allows me to enter all the > ports that I want to add to that shape at once. I am not sure how > feasible that is? At the moment, it would take a fair amount of hacking. The only object that has anything like it is the UML class, and it's dangerously complex. There's been a bit of work done towards having a List property available that allows adding multiple instances of properties like the UML class attributes/operations, but it's not ready yet. > I looked in the source under: > > http://svn.gnome.org/viewcvs/dia/trunk/objects/AADL/ > > And it looks like I find what I am looking for in aadldata.c and aadlport.c. Indeed. > In the source the author calls the objects a plug in. Could I also > create that as a Python plugin or does it need to be in C? If you want to extend the AADL shape, I'm afraid it'd have to be in C. -Lars _______________________________________________ Dia-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/dia-list FAQ at http://live.gnome.org/Dia/Faq Main page at http://live.gnome.org/Dia
