Skip to main content

How to populate a Combo Box in GTK3 using Glade

This post will show how to use Glade to list combo box items with GTK3 since I could not find any other tutorials and it took me a while to figure it out.  No coding necessary!

Step 1:  Insert the combo box. A GtkComboBox will be created.
Inserting the combo box into the GTK dialog


Step 2: Select the combo box.  In the General Properties click the ... button next to ComboBox Model and click new.  A new GtkListStore will be created and set to the combo box's model.
Adding a new liststore model to the Combo Box

Step 3: With the combo box selected, open the Combo Editor by clicking the edit button from the toolbar.
Opening the Combo Editor
Step 4; Add some columns to the combo box's liststore.  Use type: gchararry for text.  Insert any other model columns at this time as well.

Step 5: Insert data into the liststore by scrolling down in the Combo Editor and clicking the + to add a new row.  Enter the data needed for each row.

Step 6: Click the Hierarchy tab and then click add.  A new GtkCellRendererText will be created.

Step 7: Under properties and attributes, change the Text: from unset to the gchararray column of the liststore that you wish to have displayed.


Step 8 (optional):  If you want an item selected by default, click back on the General tab and set the Active item to the row index of the liststore containing the default value.

Step 9: Close the Combo Editor and there you have a populated Combo Box!



Thanks for reading!

Comments

  1. Thanks for the information, very useful even with Glade 3.6.7

    ReplyDelete
  2. Extremely helpful even for Glade 3.6.7, thanks !!!

    ReplyDelete
  3. Thanks! Been a while since I've used glade ... it's changed a lot. The tip about clicking the 'edit' button in the toolbar helped me get my project done! Thanks :-)

    ReplyDelete

Post a Comment

Popular posts from this blog

Kivy vs React-Native for building cross platform mobile apps

I've built three apps now using Kivy and one with React-Native, just wanted to share my thoughts on both.

Just a warning, I am strongly biased towards python and this is all based on opinion and experience and is thus worth what you pay for it. I don't claim to be an expert in either of these, just have worked with each for several months.  If something is incorrect I'd love to hear advice.

Kivy
Demo of one of the apps



Pros:
Nice to be able to run natively on the desktop WITHOUT a simulatorPython is easy to work withUse (almost) any python libraryVery easy to create custom widgetsKivy properties and data binding just work. Way nicer than React's "state" / flux / redux whatever you want to call it (stupid?). Native interfaces (pyjnius) and (pyobjc)Runs and feels pretty smooth Cons:Default widget toolkit looks like Android 4.4. Requiring you use your own widgets or a theming kit like KivyMD if styling bothers youCreating dynamic widgets declaratively is not yet s…

Control Systems in Python - Part 1 - Bode and Step Response

I hate matlab with passion, yet sadly, nearly everyone uses it.  I'm a fan of Python and open source stuff so here's a simple article on how to do some common control systems stuff in Python.

First we need to make sure the environment is setup.
Install IPython (or you can use any other python shell, but a unicode supported shell is preferred)Install python-control (numpy, scipy)Install sympy
These should do if your on Ubuntu/debian:

sudo apt-get install python-sympy python-numpy python-scipy python-matplotlib ipython
Then you need to install python control, see How to download and install python-control
Intro to using SympyOpen ipython and run the following:

import sympy from sympy import * sympy.init_printing() s = Symbol('s')

Now we can do things like define transfer functions using the symbolic variable s.


We can expand the bottom using the .simplify() method

and we can do something more complex like...
which is really nice because it does all the multiplication for us... and it’…