Hello, I'm trying to design a graphics engine for a game. I am having a hard time finding a way to design the GUI system. From what I've understood, the GUI has 2 parts: Input, and Graphical Ouput. Is this correct? Because I'm using the MVC pattern (for the whole game, not for the engine), this leads to the situation where the GUI system (which should be a seperated library I suppose) belongs to both the Controller and View, and this just seems incorrect. When user input arrives to the controller, it should handle the input. But only the View part of the program knows all the graphical interface. So when I click within the bounds of a button for example, only the View can determine that there was a click in that button, because only the View knows the graphical structure of the GUI. In other words, I can't find a way to not send user input into the View part of the GUI. I would really appreciate any clarification on this matter, It's quite confusing me. Thanks.

Ohh, so what you're saying is that the presentation of the UI should also be divided into 2 parts: one contained inside the Model, and the View taking the data from there and drawing it?
I thought that the Model should only have the data of the game itself (graphical objects, physical objects, etc..), without any connection to any data related to the graphics. So I thought that all the "UI widgets" should be inside the View part, shouldn't it?
I'm still a bit confused now. What parts exactly should be contained in the Model? thanks again for any help.