[chimera-dev] GUI question

[Daniel Gurnon]

Thank you Eric!


____________________________

Daniel Gurnon, Ph. D.
Associate Professor of Chemistry and Biochemistry
Director, Science Research Fellows Program
DePauw University
Greencastle, IN 46135

On Thu, Oct 26, 2017 at 7:17 PM, Eric Pettersen <pett at cgl.ucsf.edu> wrote:

> On Oct 26, 2017, at 10:29 AM, Daniel Gurnon <danielgurnon at depauw.edu>
> wrote:
>
> Hi everyone,
>
>
> Hi Dan, Shuto,
>
>
> I'm working with a undergraduate computer science student, Shuto Araki, on
> a Chimera development project that involves creating a GUI. I'm not a
> programmer, and he's learning Python as he goes- so we've run into the
> inevitable snag, and we're looking for some help.
>
> Here's how Shuto describes the issue:
> ----
>
> I am trying to create a Chimera GUI extension that asks Chimera to fetch
> a PDB ID and then to highlight residue positions within the structure, with
> the PDB and positions taken from a CSV file. I started with a Python
> script, and it works as intended if I import it from IDLE.
>
> However, when I tried to create a GUI using this guide
>  https://www.cgl.ucsf.edu/chimera/docs/ProgrammersGuide/Exam
> ples/Main_ExtensionUI.html
> I ran into an error. When I click on the button that I added on toolbar,
> the callback function does not seem to work properly. It just pops up an
> empty window with OK, Apply and Cancel buttons.
>
>
> The code snippet is as follows:
>
> ##############################################################
>
> class MutationDialog(ModelessDialog):
>
>     name = "mutation highlighter"
>     title = "Rare Genetic Mutation Highlighter”
>
>
> So far so good, but this is where you begin to go off the rails.  As per
> the example you were trying to follow, the creation of your custom user
> interface happens in the ‘fillInUI’ method, and your widgets should be
> children of the ‘parent’ argument that is passed into that method.  So the
> next line should be:
>
> def fillInUI(self, parent):
>
>
>     master = Tk()
>     master.title("Rare Genetic Disease Mutation Highlighter")
>     master.geometry('{}x{}'.format(500, 100))
>
>
> Don’t need any of the above three lines.  Take them out.
>
>
>
>     global var
>     var = StringVar(master)
>     var.set(proteinNames[0])
>
>     # proteinNames is a list of protein options that a user chooses
>     options = OptionMenu(master, var, *proteinNames)
>     options.pack()
>
>
> The above lines are okay, but instead of ‘master’ use ‘parent’.
>
>     def Apply():
>         # this functionality works
>         protein_num = proteinMap[var.get()]
>         mh.highlightMutation(filename, protein_num)
>
>     button = Button(master, text = "Apply", command = Apply)
>     button.pack()
>
>
> Okay, sort of, but no. :-)  The ModelessDialog class will automatically
> create OK, Apply, and Close buttons (though that behavior can be
> overridden).  All you have to do is define a class method named Apply and
> that method will be called when OK or Apply is clicked.  So:
>
> def Apply(self):
> # rest of what you were doing in Apply is okay…
>
> You definitely don’t need the code that explicitly creates an Apply button.
>
>
> chimera.dialogs.register(MutationDialog.name, MutationDialog)
>
>
> dir, file = os.path.split(__file__)
> icon = os.path.join(dir, 'ExtensionUI.tiff')
> chimera.tkgui.app.toolbar.add(icon, lambda d=chimera.dialogs.display,
> n=MutationDialog.name: d(n), 'Highlight Mutations', None)
>
>
> The rest of the code is fine.  Let me know if you run into further
> problems.
>
> —Eric
>
> Eric Pettersen
> UCSF Computer Graphics Lab
>
>
> ##############################################################
>
> I suspect that MutationDialog class is not working as a proper callback
> class.
>
> *Do you have any suggestions for the proper structure of the class?*
> We're also
>
> Sincerely,
>
> Shuto
>
> ---
>
> Thanks for any advice!
> Dan
> ____________________________
>
> Daniel Gurnon, Ph. D.
> Associate Professor of Chemistry and Biochemistry
> Director, Science Research Fellows Program
> DePauw University
> Greencastle, IN 46135
> _______________________________________________
> Chimera-dev mailing list
> Chimera-dev at cgl.ucsf.edu
> http://www.rbvi.ucsf.edu/mailman/listinfo/chimera-dev
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://plato.cgl.ucsf.edu/pipermail/chimera-dev/attachments/20171029/aeea5daf/attachment-0001.html>