Forums Technical Discussion Python Viewer State and Hotkeys

Python Viewer State and Hotkeys

   4342   14   3
User Avatar
Control_Vertex
Member
162 posts
Joined: 5月 2015
Offline
 
Greetings everybody

I am wondering if it is possible to disable hotkeys while in a custom python viewer state. Here is my problem, I am trying to use the “t”, “r” and “e” onKeyEvent in my object level python viewer state, but the viewport hotkeys seem to catch them first and it switches to the translation, rotation or scaling tools. I tried with the onKeyTransitEvent and it does catch the “key down” event and I then return True to consume the key transition, but the viewport still switches to the corresponding transformation tool.

Would there be a way to use those keys or do hotkeys have priority over viewer states key events?

Thanks in advance for you help
 Report
User Avatar
mabelzile
スタッフ
445 posts
Joined: 2月 2018
Offline
 
Unfortunately, some hotkeys like the ones you mention cannot be overridden by python states. The hotkey architecture is currently being reworked to fix these kinds of problems.
 Report
User Avatar
Control_Vertex
Member
162 posts
Joined: 5月 2015
Offline
 
All right, thanks for the answer mabelzile!
 Report
User Avatar
Akelian
Member
34 posts
Joined: 7月 2015
Offline
 
mabelzile
Unfortunately, some hotkeys like the ones you mention cannot be overridden by python states. The hotkey architecture is currently being reworked to fix these kinds of problems.

Hi @mabelzile,

Is it still the case?

Thanks
 Report
User Avatar
mabelzile
スタッフ
445 posts
Joined: 2月 2018
Offline
 
Akelian
mabelzile
Unfortunately, some hotkeys like the ones you mention cannot be overridden by python states. The hotkey architecture is currently being reworked to fix these kinds of problems.

Hi @mabelzile,

Is it still the case?

Thanks

Yes it still the case.
 Report
User Avatar
wyhinton1
Member
83 posts
Joined: 2月 2020
Offline
 
mabelzile
Unfortunately, some hotkeys like the ones you mention cannot be overridden by python states. The hotkey architecture is currently being reworked to fix these kinds of problems.

Is this still the case
 Report
User Avatar
artchapter
Member
5 posts
Joined: 10月 2021
Offline
 
is this still the case
 Report
User Avatar
wyhinton1
Member
83 posts
Joined: 2月 2020
Offline
 
artchapter
s this still the case

I'm pretty sure this is still the case :/
 Report
User Avatar
playBlaster
Member
18 posts
Joined: 11月 2018
Offline
 
this is now possible. in your createViewerStateTemplate do the following:

state_typename = kwargs["type"].definition().sections()["DefaultState"].contents()

menu = hou.ViewerStateMenu(state_typename + "_menu", state_label)
del_key = su.hotkey(state_typename, "delete_point", "Del", "delete selected points")
menu.addActionItem("delete_point", "delete selected points", hotkey=del_key)
template.bindMenu(menu)

this will override the delete key ("Del") when in your viewer state. "delete_point" is the key code and corresponds to the key code in "menu.addActionItem". when the user hits the delete key, the user will call what would normally be called when selecting the item from the right mouse button menu. "delete selected points" is the description, and and can be anything you would like. the important part is to use the correct key string, "Del" for delete, "UpArrow" for up arrow, "ENTER" for enter, etc...

su.hotkey is part of a library that is already imported in your viewer sate. it handles a lot of what you could be doing manually as shown in the docs: https://www.sidefx.com/docs/houdini/hom/state_menus.html#hotkeys [www.sidefx.com]

hope that helps
 Report
User Avatar
Control_Vertex
Member
162 posts
Joined: 5月 2015
Offline
 
Thank you so much for your answer @playBalster!

I will test this as soon as I can
 Report
User Avatar
yonatanbary
Member
4 posts
Joined: 8月 2022
Offline
 
cval
Thank you so much for your answer @playBalster!

I will test this as soon as I can

Hey @cval, were you able to make it work?
From my testing I can’t override these specific shortcuts.

My solution is to remove these shortcuts using the hotkeys python module and then onExit to assign them back, but it’s not good practice I suppose.
 Report
User Avatar
kodra
Member
373 posts
Joined: 6月 2023
Offline
 
Is there an easy way to know which hotkeys are "free to use" by a Python state?
Edited by kodra - 2023年12月16日 11:29:21
 Report
User Avatar
yonatanbary
Member
4 posts
Joined: 8月 2022
Offline
 
kodra
Is there an easy way to know which hotkeys are "free to use" by a Python state?
I did a little run through all the characters and the ones who seem to be "locked" are:
d (Display options)
e (Scale tool)
j (Modify Channels)
r (Rotate Tool)
s (Volatile Select Mode)
t (Move Tool)
w (Wireframe)
And also these special characters ` \ ?

I wish we could override these in python states!
 Report
User Avatar
tamte
Member
8833 posts
Joined: 7月 2007
Offline
 
yonatanbary
kodra
Is there an easy way to know which hotkeys are "free to use" by a Python state?
I did a little run through all the characters and the ones who seem to be "locked" are:
d (Display options)
e (Scale tool)
j (Modify Channels)
r (Rotate Tool)
s (Volatile Select Mode)
t (Move Tool)
w (Wireframe)
And also these special characters ` \ ?

I wish we could override these in python states!
Are you talking about H20?

while I don't have much experience with Pyhon States limitations I'd find it odd if these were still an issue especially since Car Rig Python State in H20 uses hotkeys like WASD for movement and they seem to work
Edited by tamte - 2023年12月17日 16:38:25

Attachments:
carrig_state_shortcuts.gif (10.4 KB)

Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
kodra
Member
373 posts
Joined: 6月 2023
Offline
 
I tried to set move tool's hotkey to G (like in Blender). That breaks almost all the built-in Python states, since they all use G.

Ideally it shouldn't break Python states, unless the specific state has transform handle (so move tool makes sense).

I still don't know when Python state's hotkeys take precedence over Houdini's tho.
Edited by kodra - 2023年12月17日 22:21:02
 Report
  • Quick Links