Merge pull request #1075 from flaviut/inlinedocs

Add some documentations and code examples in system

tests/misc/tevents.nim

@@ -0,0 +1,48 @@
+discard """
+file: "tevents.nim"
+output: '''HandlePrintEvent: Output -> Handled print event
+HandlePrintEvent2: Output -> printing for ME
+HandlePrintEvent2: Output -> printing for ME'''
+"""
+
+import events
+
+type
+  TPrintEventArgs = object of TEventArgs
+    user*: string
+
+proc handleprintevent*(e: TEventArgs) =
+    write(stdout, "HandlePrintEvent: Output -> Handled print event\n")
+        
+proc handleprintevent2*(e: TEventArgs) =
+    var args: TPrintEventArgs = TPrintEventArgs(e)
+    write(stdout, "HandlePrintEvent2: Output -> printing for " & args.user)
+    
+var ee = initEventEmitter()
+
+var eventargs: TPrintEventArgs
+eventargs.user = "ME\n"
+
+##method one test
+
+ee.on("print", handleprintevent)
+ee.on("print", handleprintevent2)
+
+ee.emit("print", eventargs)
+
+##method two test
+
+type
+  TSomeObject = object of TObject
+    PrintEvent: TEventHandler
+
+var obj: TSomeObject
+obj.PrintEvent = initEventHandler("print")
+obj.PrintEvent.addHandler(handleprintevent2)
+
+ee.emit(obj.PrintEvent, eventargs)
+
+obj.PrintEvent.removeHandler(handleprintevent2)
+
+ee.emit(obj.PrintEvent, eventargs)
+