[chimera-dev] creating an extension

[Conrad Huang]

Personally, I would just stick with a standard Python GUI like Pmw. 
There's example code that work and it's well documented.  Perhaps 
http://www.cgl.ucsf.edu/chimera/docs/ProgrammersGuide/Examples/Main_ExtensionUI.html 
might help.

Conrad

On 12/7/2013 3:03 PM, Dougherty, Matthew T wrote:
> Hi,
>
> I am trying to create a simple extension that has a column of buttons
> (qty 10-20) having a corresponding column of user defined text
> blocks. When I push a button, the corresponding text string will be
> read and processed as a command string (eg, "reset default", "rock X
> 3", "move Z 2000")
>
> I started with VolumePlanes and whittled it down to the nub to figure
> out what it was doing relative to what I want; below. I am realizing
> the buttons defined by this example extension uses some specific
> chimera GUI strategies. My going with a row of buttons would work as
> in this volumeplanes example, but is second preference on layout.
> More visually intuitive to have it side by side. Not sure this is
> possible with another dozen lines of code, or if I would need to go
> about it another route using different CGLTk api's and scrap using
> this volumeplane extension as a boiler plate.
>
>
> So I am realizing that this is putting me into the intricacies of
> CGLtk.  An alternate would be to go with std python gui code.  I also
> know you are reinventing chimera, one reason being the tk libraries,
> which opens up a third approach.  So I am at a crossroad as to how to
> proceed.  Because the code is relatively small, a rewrite for
> chimera2 does not seem an issue.  Also there are some issues with
> parenting I am unfamiliar with (eg, t.withdraw(), columnconfigure).
>
> I am thinking this might be a good example of an extension for a
> beginner, so writing it as such might be useful for others.
> Particularly for new developers trying to sort out the boundaries
> between python, chimera, tk, and the extension linkages.
>
> Need some direction as to which way to go for the least amount of
> work of coding.
>
> thanks,
>
> Matthew Dougherty National Center for Macromolecular Imaging Baylor
> College of Medicine
>
>
> ===========
>
> #
> -----------------------------------------------------------------------------
>
>
import chimera
> from chimera.baseDialog import ModelessDialog import ButtonCommands
>
> #
> -----------------------------------------------------------------------------
>
>
class Button_Commands_Dialog(ModelessDialog):
> title = 'Button Commands' name = 'button commands' buttons = ('C1',
> 'C2', 'C3','Close',)
>
> #
> ---------------------------------------------------------------------------
>
>
# 
---------------------------------------------------------------------------
> def fillInUI(self, parent): t = parent.winfo_toplevel()
> self.toplevel_widget = t t.withdraw()
>
> parent.columnconfigure(2, weight = 2)
>
> from CGLtk import Hybrid
>
> ps = Hybrid.Scale(parent, 'Cmd1', 0, 10, 1, 0) ps.frame.grid(row = 2,
> column = 0, sticky = 'ew')
>
> ps.callback(self.change_plane_cb) ps.entry.bind('<KeyPress-Return>',
> self.change_plane_cb) self.plane = ps
>
> def change_plane_cb(self, full_size = False): return
>
> #
> ---------------------------------------------------------------------------
>
>
# 
---------------------------------------------------------------------------
> def C1(self): c_1='echo c1' chimera.runCommand(c_1)
>
> def C2(self): c_2='echo c2' chimera.runCommand(c_2)
>
> def C3(self): c_3='echo c3' chimera.runCommand(c_3)
>
> #
> -----------------------------------------------------------------------------
>
>
def Button_Commands_dialog(create = False):
> from chimera import dialogs return
> dialogs.find(Button_Commands_Dialog.name, create=create)
>
> #
> -----------------------------------------------------------------------------
>
>
def show_button_commands_dialog():
> from chimera import dialogs return
> dialogs.display(Button_Commands_Dialog.name)
>
> #
> -----------------------------------------------------------------------------
>
>
from chimera import dialogs
> dialogs.register(Button_Commands_Dialog.name, Button_Commands_Dialog,
> replace = True)
>
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