Prevent a window from being draggable.
 

I have been digging through the wiki and I can not find anything that will allow you to prevent a window from being draggable.

Anyone got any ideas?

save the x and y position when the window is placed where you want it and then allow or disallow dragging in the PositionChanged event by setting the SetPosition to those saved x and y coords, self.movable is a flag you define yourself that you can set to allow positioning ( like in the constructor ), you can set that to false if you don't want it to be dragged anymore

I have tried this code a million different ways and I can not figure out how to append it to my settings window to get it to lock and unlock the window when a check block is selected.


SetupWindow.lua
SatchelWindow.lua

Any help is greatly appreciated. A lot of the time I can figure out and work through the code, but this is really stumping me.

This is a really dirty hack - but it's oh-so effective

Now, you won't be able to drag it, or even get that 4-way cursor - because that control (moveBlocker) will intercept any mouse commands, and unlike the UI.Lotro window, a control won't auto-move on drag.

Nice, that's pretty smart...I will try it tonight!

@DU
 

Not sure why this isn't working... can you take a look at it when you get a sec?

The code in question is in the second block of code under ----LOCK WINDOW----

No...no.

See, you add that window/control to the window when you make the window itself, starting off with a background color so you can place and size it correctly. Once you do that, the only thing you have to put in your conditional is switching mouse visible on and off. eg:

Then your initial conditional

finally an event handler example:

I think there is a basic key understanding of Lua that I am missing. Here is the error;

What am I forgeting to do? I don't understand why main failed to import Olenn.Satchel. I didn't even touch main.lua. There must be something easy that I am missing.

Here is all of the code thus far.

SatchelWindow.lua
SetupWindow.lua
And thanks for the help once again DU.

In SatchelWindow.lua this part
I don't know why you changed it. Before you changed it, the very last line there was creating an instance of the class setupWindow. Now you have it defining SetupWindow as a class (which is already rightfully done in the setupwindow.lua file). It should probably read as.


As for your error about main, basically its telling you it can't load SatchelWindow.lua because of the above problem (SetupWindow.locked doesnt exsist because you didnt create an instance of the class setupWindow). Since it can't load that file init.lua cant import the Olen.SatchWindow package. Which also means that Main.lua cant import the Olen.Satchel package. Usually when you get a string of errors like that, you wanna just focus on the first one listed. Because quite often the unable to import errors are caused by that.

First of all, I think you're not quite understanding classes in Lua.

SetupWindow and SatchelWindow are classes, and as such do nothing unless an instance is made of them. eg:

Now, you can do whatever you want to each instance of the class in Main.lua, but you can't do anything to the SetupWindow class in SatchelWindow, nor vice versa. Classes are essentially blueprints, containing code that describes their appearance and behavior. Just like you can't walk into a blueprint of a house and sit down and watch TV, you can't do anything with a Class, unless you actually build yourself a copy of it by declaring an instance.

Ever see one of those suburban neighborhoods where it's obvious that all the houses were built off the same blueprints, and the only thing really different about them is the changes the owners made to them (i.e. paint color)? If that were a program, each house would be an instance of the same class. eg:

Now from there, you could change any instance - using any function/property available to you in that class, or any class House inherits. eg:

You could even add a pool if you wanted

Now let's say you wanted to oh...I dunno, put in a pool light in your pool. Now that could be done quite easily here, by doing something like:

However, if you tried to do this in the House class itself...

Well, that would get a big error - a House has nothing to do with a Pool, and even if it knew exactly what a Pool was (i.e. by importing the class), it wouldn't know which pool to check to see if it was AboveGround or not.

On the other hand, doing something like this, in the same class/file as you created instances of houses would work

Now, if you somehow really needed to make sure every house was painted blue or yellow based on whether the pool was above ground or not, then..you could just create an instance within House(), and that way every house would come with a pool eg:


See if you notice, we're still not checking for the class itself (i.e. Pool) but rather an instance we created inside that class. But unlike before, we can now decide how to make a House based on what the properties of its pool are. It's important to note that either the House class, or the Pool class would need to have a constructor that sets whether the pool is above ground or not, otherwise the answer will always be what the default value of that property is.

Now that we have a declaration of Pool inside House, we can still access it from outside of House as well eg:

While this doesn't specifically fix your code, I hope it was informative enough for you to get a better understanding how classes work, and how to use them - not only inside Lua, but in other languages as well. If you can now see where your problem is, then I've accomplished my goal. If you have any questions, please feel free to ask!