Mod Tool/Scripting: Difference between revisions

Mod Tool/Scripting (view source)

Revision as of 13:55, 31 March 2015

2,547 bytes added , 31 March 2015

Suppress custom events in batch processing

Paradox-01

8,484

edits

@@ Line 128: / Line 128: @@
 [...]
+===Suppress events in batch processing===
+Events that get triggered by code inside functions don't delay the function for processing the event.
+The events are precessed after the function finished.
+This can pose a serious problem with batch processing where you might create and select each object several times.
+====Negative-example====
+ function XSILoadPlugin( in_reg )
+ 	in_reg.Author = ""
+ 	in_reg.Name = "Sel Plug-in"
+ 	in_reg.Major = 1
+ 	in_reg.Minor = 0
+ 	in_reg.RegisterEvent "Selection",siOnSelectionChange
+ 	XSILoadPlugin = true
+ end function
+ function XSIUnloadPlugin( in_reg )
+ 	dim strPluginName
+ 	strPluginName = in_reg.Name
+ 	Application.LogMessage strPluginName & " has been unloaded.",siVerbose
+ 	XSIUnloadPlugin = true
+ end function
+ function Selection_OnEvent( in_ctxt )
+ 	' get select event, ignore unselect events (0)
+ 	if cstr(in_ctxt.GetAttribute("ChangeType")) = 1 then
+ 		exit function
+ 	end if
+ 	if XSIUtils.Environment("IgnoreMe") = "true" then
+ 		exit function
+ 	else
+ 		logmessage "hi !"
+ 	end if
+ 	Selection_OnEvent = true
+ end function
+Code to be called from somewhere else.
+ XSIUtils.Environment.Setitem "IgnoreMe", "true"
+ SelectObj "cylinder", , True
+ XSIUtils.Environment.Setitem "IgnoreMe", "false"
+The selection event outputs "hi !" despite "IgnoreMe" is set to "true" at the beginning.
+That's because the event becomes processed after the function finished after "IgnoreMe" was set to "false".
+====Positive-example====
+ function XSILoadPlugin( in_reg )
+ 	in_reg.Author = ""
+ 	in_reg.Name = "Sel2 Plug-in"
+ 	in_reg.Major = 1
+ 	in_reg.Minor = 0
+ 	in_reg.RegisterEvent "Selection2",siOnSelectionChange
+ 	XSILoadPlugin = true
+ end function
+ function XSIUnloadPlugin( in_reg )
+ 	dim strPluginName
+ 	strPluginName = in_reg.Name
+ 	Application.LogMessage strPluginName & " has been unloaded.",siVerbose
+ 	XSIUnloadPlugin = true
+ end function
+ function Selection2_OnEvent( in_ctxt )
+ 	if cstr(in_ctxt.GetAttribute("ChangeType")) = 1 then
+ 		exit function
+ 	end if
+ 	IgnoreCount = GetGlobal ("IgnoreThis")
+ 	if IgnoreCount > 0 then
+ 		SetGlobal "IgnoreThis", (IgnoreCount - 1)
+ 	else
+ 		logmessage "Hi 2 !"
+ 	end if
+ 	Selection2_OnEvent = true
+ end function
+Code to be called from somewhere else.
+Be aware of what can trigger the unwanted event and use a '''''global ignore variable'''''.
+ for i=1 to 5
+ 	SetGlobal "IgnoreThis", GetGlobal ("IgnoreThis") + 1
+ 	SelectObj "cylinder", , True
+ next
+ ' Don't use that variable where you want to trigger the event intentionally.
+ SelectObj "cylinder", , True
 ===Directories===
@@ Line 371: / Line 460: @@
   logmessage "onisplit finished."
   ' now you can work with the extracted xml file
 ==Read file==