[Ktechlab-devel] changing the data in IDocumentModel

[P Zoltan]

  Hello,

In this email I'd like to point out 2 problems with the current  
IDocumentModel interface:
1. components and connectors cannot be removed from the model
2. data residing in the model cannot be changed, for example by the  
simulator

About 1:
  Removing components is useful in the unit tests about the simulator. The  
simulator with minimal features is essentially implemented, but when I  
want to make tests that place some components/elements in the test-model,  
I cannot remove them. The next major work with the simulator is to port  
all the elements to it.

About 2:
  As I see in the interface, all the methods return QVariantMap values, and  
not references.
  I'd like to modify the model in order to store there the state of the  
simulated circuit: voltages and currents in the nodes. As a way of storing  
this information, I've thought about placing new keys in the QVariantMaps  
representing the components, with the name being the name of a pin  
appended with "_v" and "_i". For example, for a resistor with pins "A" and  
"B", I'd like to add "A_v", "A_i", "B_v" and "B_i" values, each storing  
the voltage and current for a given pin. Note that we have to agree on the  
names of the pins, because both the model, and the simulation part needs  
to use them.

Opinions, ideas, suggestions?

  Zoltan