Expose current layout as variable to enable_expression

[dcpingflood]

Hi all,

I want to suggest to expose the current layout name and some way to check if current is night or day layout in variables accessible in enable_expression.

This way we could have OSD for day and night.

I think is enough to expose the following variables:

layout.name : string holding current layout name layout.nightlayout : boolean (or int 0|1) holding status if current layout is night (true/1) or day (false/0).

This way if we want to show an OSD item only if the current layout is the night layout, then we could do something like this:

<osd type="button" src="daybutton.png" command="command()" x="10" y="10" enable_expression="layout.nightlayout==0"/>

<osd type="button" src="nightbutton.png" command="command()" x="10" y="10" enable_expression="layout.nightlayout==1"/>

Best regards