Is disabling menu items and or tools possible?

Maggy

I know that it's very easy to add menu items, tool bars, context menu items with Ruby in Sketchup, but I tried to disable/hide/remove and as far as I can see that's not possible.
Any suggestions?

[Maggy]

azuby

Remove/Hide: Not on the running process
Grey=Disable: Depends on the script

azuby

Maggy

Thanks.
Grey sounds good enough. But the only grey I can find is in the class Color document.
Can you tell me where to find more information?

[Maggy]

azuby

Yes, in the sketchup Ruby API documentation,
http://download.sketchup.com/sketchuphelp/gsu6_ruby/Docs/Ruby-Menu.html#set_validation_proc
But the example is a shame. So have a look on these few lines of code:

grayed_proc = Proc.new { @active_model.path.empty? ? MF_GRAYED ; MF_ENABLED }
azubymenu = UI.menu("Plugins").add_submenu "Cornflakes"
azuby_menu_item = azubymenu.add_item "Add milk" do
  UI.messagebox "Adding milk to your cornflakes"
end
azubymenu.set_validation_proc azuby_menu_item, &grayed_proc
# take care for the "&" or write the line;
azubymenu.set_validation_proc azuby_menu_item do
  @active_model.path.empty? ? MF_GRAYED ; MF_ENABLED
end

An equal usage is possible for toolbar items.

azuby

Maggy

Why didn't I get Ruby in school, when I was 10 years old or so? Now, 40 years later it's very hard to grasp. The most frustrating part it that it looks so easy when I read a perfectly functioning ruby script. But it looks just as easy in a script that's not doing what I expect it to do...

I copied your code to "cornflakes.rb", loaded it, it shows up in Plugins, it adds milk to my cornflakes, but I do not see it grey out any menu item. So I started editing, editing, editing, each time closing SU, restarting it, reloading Cornflakes.rb till the milk and cornflakes were coming out of my ears, but still no greyed out menu items.

[Maggy]

azuby

Maybe because you have to set the @active_model before using the code - like this:

@active_model = Sketchup.active_model

I haven't ried the code and at the moment I'm in university and do not have Sketchup installed. I'll care this evening, if it won't work as expected.

azuby

azuby

For me this code works with the additional line. I put it to a .rb file, load Sketchup, try to use Plugins > Cornflakes > Add mild, it is grayed, I open a .skp file and try the same and get my breakfest.

azuby