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In a Pie menu instead of switching just edit/object mode I would also like to swap out the content of the display like from 3D view switch to node editor for the selected object. But I have a hard time figuring out how to write this.

I went to the API page to see if many I can get some clues from there. https://www.blender.org/api/blender_python_api_2_76_2/bpy.context.html?highlight=context.area#bpy.context.area

If I switch the modes the console reads this out:

bpy.context.area.type = 'IMAGE_EDITOR'
bpy.context.area.type = 'NODE_EDITOR'
bpy.context.area.type = 'VIEW_3D'

To define a edit/object mode switch I 3D view I know you can do it this way:

bpy.ops.object.editmode_toggle()

pie.operator("object.editmode_toggle", text="Edit/Object", icon='OBJECT_DATAMODE')

So I tried this but obviously it odes not work

pie.operator("context.area").type='IMAGE_EDITOR'

With the following error message:

Traceback (most recent call last):
  File "\Modeling Toolbox Pie Beta.py", line 654, in draw

AttributeError: 'NoneType' object has no attribute 'type'

location: <unknown location>:-1
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2 Answers 2

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Wazou wrote a good viewport/editor switch pie a while back and I've been modifying it lately. You can find it on github in addons_extern. I don't completely understand it, but I believe it's close to what you're asking for. You could probably borrow some parts of the code for your own pie.

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  • $\begingroup$ I studied it but to my knowledge it only switches between edit/object/sculpt mode and not swaping out the 3D view with the node or image editor module. $\endgroup$
    – Claas Kuhnen
    Commented Jan 17, 2016 at 22:56
  • $\begingroup$ We're looking at different scripts, because viewport_pie_menu.py allows you to change editors in a window. Press shift-space over any editor other than the console and it gives you options to switch between editors. Up is 3D view, left is a submenu of image editors, etc. $\endgroup$
    – Italic_
    Commented Jan 17, 2016 at 23:58
  • $\begingroup$ OPS - same name different thing. Thank you for this! The example is perfect to learn from! $\endgroup$
    – Claas Kuhnen
    Commented Jan 18, 2016 at 0:53
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There are already shortcuts defined to switch areas.

UserPreferences -> Input -> Window

If you browse these shortcuts you will find Context Set Enum, which uses the generic wm.context_set_enum operator. The keys are SHIFTF1-F12

So you can copy the arguments:

op_props = pie.operator("wm.context_enum_set")
op_props.data_path = "area.type"
op_props.value = "VIEW_3D"

See Area.type for the available options

Further you might also try wm.context_pie_enum to automatically layout all enum items in a pie menu.

Just define a shortcut and type area.type in the data_path field.

Note

You can find a listing of all context attributes here

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  • $\begingroup$ Tested context_pie_enum and it seems to be buggy :/ - multiple areas are assigned to the same direction. $\endgroup$
    – pink vertex
    Commented Jan 19, 2016 at 15:23

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