Helps fix the one-frame delay problem when running Google Sketchup in Wine

fix_sketchup_wine.rb

# Fixes the view each time the view changes

require 'sketchup'

def refresh
    UI.start_timer(0, false) {
	Sketchup.active_model.active_view.invalidate.refresh
    }
end

module NH
  module ViewFix
      @observer = nil
      @selection_observer = nil
      @model_observer = nil
      @layer_observer = nil
      @tool_observer = nil
      @rendering_observer = nil
      

    class MyViewObserver < Sketchup::ViewObserver
	def onViewChanged( view )
		puts "New View changed: #{view.inspect}"
		refresh
	end
    end

    class MySelectObserver < Sketchup::SelectionObserver
	def onSelectionBulkChange(selection)
	    puts "MySelectObserver.onSelectionBulkChange"
	    refresh
	end
	def onSelectionCleared(selection)
	    puts "MySelectObserver.onSelectionBulkChange"
	    refresh
	end
    end
    
    class MyModelObserver < Sketchup::ModelObserver
	def onActivePathChanged(model)
	    puts "onActivePathChanged: #{model}"
	    refresh
	end
	def onEraseAll(model)
	    puts "onEraseAll: #{model}"
	    refresh
	end
	def onExplode(model)
	    puts "onExplode: #{model}"
	    refresh
	end
	def onExplode(model)
	    puts "onExplode: #{model}"
	    refresh
	end
#	def onPidChanged(model, old_pid, new_pid)
#	    puts "onPidChanged: #{model}, #{old_pid} => #{new_pid}"
#	    refresh
#	end
	def onTransactionCommit(model)
	    puts "onTransactionCommit: #{model}"
	    refresh
	end
	def onTransactionAbort(model)
	    puts "onTransactionAbort: #{model}"
	    refresh
	end
	def onTransactionRedo(model)
	    puts "onTransactionRedo: #{model}"
	    refresh
	end
	def onTransactionUndo(model)
	    puts "onTransactionUndo: #{model}"
	    refresh
	end
	def onDeleteModel(model)
	    puts "onDeleteModel: #{model}"
	    refresh
	end
	def onPlaceComponent(instance)
	    puts "onPlaceComponent: #{instance}"
	    refresh
	end
    end

    class MyLayersObserver < Sketchup::LayersObserver
	def onCurrentLayerChanged(layers, layer)
	    puts "onCurrentLayerChanged: #{layer.name}"
	    refresh
	end
	def onLayerAdded(layers, layer)
	    puts "onLayerAdded: #{layer.name}"
	    refresh
	end
	def onLayerChanged(layers, layer)
	    puts "onLayerChanged: #{layer.name}"
	    refresh
	end
	def onLayerRemoved(layers, layer)
	    puts "onLayerRemoved: #{layer.name}"
	    refresh
	end
	def onRemoveAllLayers(layers)
	    puts "onRemoveAllLayers: #{layers}"
	    refresh
	end
    end

    class MyToolObserver < Sketchup::ToolsObserver
	def onActiveToolChanged(tools, tool_name, tool_id)
	    puts "onActiveToolChanged: #{tool_name}"
	    refresh
	end
	def onToolStateChanged(tools, tool_name, tool_id, tool_state)
	    puts "onToolStateChanged: #{tool_name}"
	    refresh
	end
    end
    
    class MyRenderingOptionsObserver < Sketchup::RenderingOptionsObserver
	def onRenderingOptionsChanged(rendering_options, type)
	    puts "onRenderingOptionsChanged(#{rendering_options}, #{type})"
	    refresh
	end
    end

    def self.fix_view
	fix_view_disable
	fix_view_enable
    end
    
    def self.is_fix_set
	!!@observer
    end

    def self.fix_view_disable
      # Remove old observers
      Sketchup.active_model.active_view.remove_observer( @observer ) if @observer
      @observer = nil
      Sketchup.active_model.selection.remove_observer( @selection_observer ) if @selection_observer
      @selection_observer = nil
      Sketchup.active_model.remove_observer( @model_observer ) if @model_observer
      @model_observer = nil
      Sketchup.active_model.layers.remove_observer( @layer_observer ) if @layer_observer
      @layer_observer = nil
      Sketchup.active_model.tools.remove_observer( @tool_observer ) if @tool_observer
      @tool_observer = nil
      Sketchup.active_model.rendering_options.remove_observer( @rendering_observer ) if @rendering_observer
      @rendering_observer = nil
    end

    def self.fix_view_enable
      # Attach the observers.
      @layer_observer = MyLayersObserver.new
      Sketchup.active_model.layers.add_observer( @layer_observer )

      @observer = MyViewObserver.new
      Sketchup.active_model.active_view.add_observer( @observer )

      @selection_observer = MySelectObserver.new
      Sketchup.active_model.selection.add_observer(@selection_observer)

      @tool_observer = MyToolObserver.new
      Sketchup.active_model.tools.add_observer(@tool_observer)

      @rendering_observer = MyRenderingOptionsObserver.new
      Sketchup.active_model.rendering_options.add_observer(@rendering_observer)

      @model_observer = MyModelObserver.new
      Sketchup.active_model.add_observer(@model_observer)
    end

  end
end

cmd = UI::Command.new("Refresh delay fix for Wine") {
    if NH::ViewFix.is_fix_set
	NH::ViewFix.fix_view_disable
    else
	NH::ViewFix.fix_view_enable
    end
}
cmd.menu_text = "Refresh delay fix for Wine"
cmd.set_validation_proc {
    if NH::ViewFix.is_fix_set
	MF_CHECKED
    else
	MF_UNCHECKED
    end
}
UI.menu("Plugins").add_item cmd



class MyAppObserver < Sketchup::AppObserver
    def onNewModel(model)
	puts "onNewModel: #{model}"
	NH::ViewFix.fix_view
    end
    def onOpenModel(model)
	puts "onOpenModel: #{model}"
	NH::ViewFix.fix_view
    end
    def expectsStartupModelNotifications
	return true
    end
end

# Attach the observer
Sketchup.add_observer(MyAppObserver.new)

Here is the short video I uploaded with instructions on how to install the plugin
https://youtu.be/sBG-eB576DM

I do have instructions on how to install SketchUp in PlayOnLinux, but they are from 2014.
http://www.gamersonlinux.com/forum/threads/sketchup-guide.828/

I really do not recommend the guide because it uses an old version of PlayOnLinux and an old version of Wine. Not to mention SketchUp Make 2017 is no longer available for download and the guide recommends SkechUp 32-bit. I kept an old copy for myself, which is what I'm using today.

Most of the steps still apply, but if anyone has questions I can help on GamersOnLinux as I have posted all the step-by-step guides for the last 9 years or so.

[edit] Updated the youtube link to my personal channel