Uncheck icons for each new project

[dynamiqueagencement]

Hello everyone.

As the title of the topic indicates, I’d like to uncheck icons for each new open SketchUp model.

I tried using “onNewModel” and “@@ icon.set_validation_proc {MF_UNCHECKED}”, but I did not succeed.

How would you do that?

Thank you

David

[DanRathbun]

You use UI::Command instances.

But you do NOT use a hardcoded validation Proc.
Instead you access a module variable that holds a nested hash of the check states.
Outer hash has model objects as keys, inner hash has command symbols as keys.

module Author::SomePlugin

  extend self
  @@loaded ||= false

  @@command ||= {}
  @@checkstate ||= Hash::new(MF_UNCHECKED)

  def nifty_thing()
    # command code
  end

  def expectsStartupModelNotifications
    return true
  end

  def onActivateModel(model) # Mac ONLY
    unless @@checkstate.empty?
      @@checkstate.delete_if {|model_key,h| !model_key.valid? }
    end
  end

  def onNewModel(model)
    reset_checkstates(model)
  end

  def onOpenModel(model)
    reset_checkstates(model)
  end

  def reset_checkstates(model)
    if @@checkstate[model] == MF_UNCHECKED || !@@checkstate[model].is_a?(Hash)
      @@checkstate[model]= Hash::new(MF_UNCHECKED)
    end
    @@checkstate.delete_if { |model_key,h| !model_key.valid? }
    @@checkstate[model].each do |model_key,command_checkstates|
      command_checkstates.each do |command,check|
        check = MF_UNCHECKED
      end
    end
  end

  unless @@loaded

    # Declare a command called "NiftyThing":
    @@command[:NiftyThing]= UI::Command::new("NiftyThing") {
      nifty_thing() 
    }.set_validation_proc {
      @@checkstate[Sketchup::active_model][:NiftyThing] rescue MF_UNCHECKED
    }
    # set icons for @@command[:NiftyThing]

    # ... other command declarations ...

    # Attach this module itself as an AppObserver:
    Sketchup.add_observer(self)

    @@loaded = true

  end

end

[DanRathbun]

Added a rescue clause in modifier position to the validation proc, just in case during startup that the active model object is not ready when the UI wants to call validation on a toolbar command button, etc.

[dynamiqueagencement]

Sorry but I can not understand your reasoning Dan.

Simple question:

In your example, does the command called “Nifty Thing” have access to the “nifty_thing ()” method?

I ask you this because the number of “end” closes the “self” class, well before calling it.

If you can demonstrate a simplified example, it would help me understand you.

cordially

David

[DanRathbun]

@dynamiqueagencement

In your example, does the command called “Nifty Thing” have access to the “nifty_thing ()” method?

Simple answer, … I’ll quote the code in the example, and add a # <<<---<<<< comment …

    # Declare a command called "NiftyThing":
    @@command[:NiftyThing]= UI::Command::new("NiftyThing") {
      nifty_thing() # <<<------<<<< The command's block object CALLS a ...
      # method named nifty_thing() thats has all the command's control code.
    }.set_validation_proc {
      @@checkstate[Sketchup::active_model][:NiftyThing] rescue MF_UNCHECKED
    }

---

@dynamiqueagencement

I ask you this because the number of “end” closes the “self” class, well before calling it.

Incorrect, because …

(1) there is no class in the example.

(2) It is a module, and the last line of the code closes the module edit.
(I loaded the above example into Ruby with no error except “add_observer” mispelled.)

(3) At the top of the module, there is the statement: extend self
which extends the module using itself as a mixin module.
(This allows other methods in the module to call each other without the self. qualification.)

See: Class: Object (Ruby 2.0.0)

---

Edited example above to correct misspelling of "add_observer" (was "add_obsever".)

---

@dynamiqueagencement

Sorry but I can not understand your reasoning Dan.
…
If you can demonstrate a simplified example, it would help me understand you.

It is what it is. Example code that requires extra work to be made operational.
(ie, icons, actual command code, etc.)

Take it or leave it. I do not have time to devote any more time with this.

[dynamiqueagencement]

Sorry to make you waste your time Dan.

I found a simple solution to do what I wanted:

  class MyAppObserver < Sketchup::AppObserver
    def onNewModel(model)
      A.send :unchek
      model.selection.add_observer(MyAppObserver.new)
    end
  end
  Sketchup.add_observer(MyAppObserver.new)
  class A
    class << self
      def unchek
        @@pro_01.set_validation_proc{MF_UNCHECKED}
      end
      def message
        UI.messagebox("Icon checked, open a new template to uncheck it. ;-)")
        @@pro_01.set_validation_proc{MF_CHECKED}
      end
      tb = UI::Toolbar.new(%Q(TESTE2))
      @@pro_01 = UI::Command.new("MESSAGE CHECKED"){ A.message}
      @@pro_01.set_validation_proc{MF_UNCHECKED}
      tb.add_item(@@pro_01)
      tb.restore
    end
  end

You can copy and paste the code into the ruby console to test.