[QGIS-Developer] open atlas layout, using python

[Raymond Nijssen]

By the way, the fragile code solution does not work for me. It does 
toggle the button but it does not activate the atlas preview.

# open layout
designer = iface.openLayoutDesigner(layout)

# turn on atlas preview mode
lo_view = designer.view()
lo_window = lo_view.window()
action = lo_window.findChild(QAction, 'mActionAtlasPreview')
action.toggle()


On 11-10-18 16:51, Raymond Nijssen wrote:
> Hi Nyall,
> 
> It sounded great and I spent some hours on that better approach, but I 
> didn't succeed. So maybe 3.6 will have it...
> 
> Tnx!
> Raymond
> 
> 
> On 25-09-18 23:57, Nyall Dawson wrote:
>> On Tue, 25 Sep 2018 at 22:36, Raymond Nijssen <r.nijssen at terglobo.nl> 
>> wrote:
>>>
>>> 1. Can I open a layout window with a python command?
>>
>> designer = iface.openLayoutDesigner( layout )
>>
>>> 2. Can I turn on "atlas preview" with a python command?
>>
>> You'd have to do some fragile code to do this. Basically:
>>
>> - get designer window from designer.view()'s parent window
>> - find the mActionAtlasPreview child action in the window
>> - manually toggle it on
>>
>> This should work, but isn't stable API - so is likely to break ;)
>>
>> A better approach is to (quickly, before 3.4 final!) file a PR
>> exposing the toggle atlas preview behavior to
>> QgsLayoutDesignerInterface. Then you'll be able to just do:
>>
>> designer = iface.openLayoutDesigner( layout )
>> designer.toggleAtlasPreview( True )
>>
>> Nyall
>>
>>
>> Hope anyone knows!
>>>
>>> Kind regards,
>>> Raymond
>>>
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>>
>