New Project option unavailable if all objects have been deleted

[erispe]

Version

PrusaSlicer-2.3.0-alpha3

Operating system type + version

Windows 10

Behavior

• You are unable to create a 'New Project' from the 'File' menu if all the models have been deleted from the project. This can be an issue if you intended to make a new project but removed models manually first, as you then need to add an arbitrary model so that the option is available again.

• Steps needed to reproduce the problem

  • Open a .3mf project file and delete the models so the build plate is empty, then go to the "File" menu and observe that the 'New Project' option is grayed out

[neophyl]

I may be missing something but aren't the results of deleting all the objects and clicking new project the same ?

You end up with an empty plater with the same presets selected. Why would you want to click a control that does nothing ?

[erispe]

Because with a new project you can hit ctrl+s to and you are prompted to save a new .3mf file. Otherwise if working in an old project you have to be careful to to chose "Save Project As..". It's a small thing, but I don't see why the program shouldn't be consistent and always allow a ctrl+n.

[neophyl]

Good point :)

[Kachidoki2807]

Hello,

From my point of view, "New Project" should behave differently from "Delete All".

• Delete All: Only remove all the objects from the plater, keeping the settings as-is.
• New Project: Restart from a fresh state, like a new startup of PS, new 3mf, no object on the plater nor modified settings.

I am often annoyed when I want to reset all the setup to default when switching from a project to a completely different one (a really new project), to have to manually discard the print/filament/printer profiles. Since the 2.3 and its fast startup, it is even quicker to close and repoen PS than creating a "new project"...

[nordurljosahvida]

Exactly, completely agree with @neophyl and @Kachidoki2807, new project should be a blank slate, purge all settings, cut off legacy from last saved file to avoid accidentally saving into it and therefore overwriting it. It should literally refresh the session like a clean start up.

[bubnikv]

Similar to #5671
We will get there one day. The current behavior is a result of multiple refactorings of the old Slic3r.

[lukasmatena]

I think that this is solved in 2.4.0-alpha1. Delete All does the same as if one removes all the objects one by one, the action is taken as a modification of currently opened project. New Project is available even immediately after the delete.
Closing.