Overwrite Eventhandler ?

schorradt

how can i overwrite a EventHandler from a SketchupTool?
like SelektionTool:
i want define my own FunctionBody on Event onLButtonDown ...
can somebody help me?

schorradt

class MyXObserver <  Sketchup;;ToolsObserver

 	def onActiveToolChanged (a,b,c)
	UI;;messagebox(""+a.to_s+b.to_s+c.to_s+"");
	end

end #class 
observer1 = Sketchup.active_model.tools.add_observer(MyXObserver.new)

can somebody explain me: why the first parameter "a" false is at me?
the first Parameter of onActivateToolChanged must be a type of Tools, but i get a "false" , why?

avariant

Implementing a tool is as simple as creating a class an implementing the methods.

Look at the linetool.rb in examples


class LineTool
def initialize
...
end
def activate
...
end

etc...
def onLButtonDown(flags, x, y, view)
...
end
...
end

As for why the observer method is returning odd values... no idea, I'll have to try it.

EDIT: I implemented a test observer and it works fine.


class MyTestObserver < Sketchup;;ToolsObserver
	def onActiveToolChanged(tools, name, toolid)
		puts tools.to_s + " " + name.to_s + " " + toolid.to_s
	end
	
	def onToolStateChanged(tools, name, toolid, xxx)
		puts tools.to_s + " " + name.to_s + " " + toolid.to_s + " " + xxx.to_s
	end
end

It ouput "#Sketchup::Tools:0x5c1b690 CircleTool 21096" to the ruby console.
You'll notice there is a fourth parameter for onToolStateChanged. The API is wrong; it doesn't list that parameter but without it there will be an error.