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I'm a beginner in programming. I'm trying out my hands on rendering OpenGL models in Qt, and now I made a pushbutton which when clicked renders the models, but I need to also make an Undo button. Please I need guidance...I'm a beginner
Posted 22-Dec-11 20:50pm
Comments
Amir Mahfoozi at 23-Dec-11 4:52am
   
In openGL you are always busy with rendering the scene so when the user undoes then you remove that object from your list of the objects that should be rendered. It doesn't seem very complicated.
SAKryukov at 23-Dec-11 17:57pm
   
What do you mean by "make a button"? Buttons are already available, you don't need to "make" then unless you need some non-standard rendering/behavior.
--SA
codeKonos at 24-Dec-11 1:52am
   
pardon my english. I mean make my pushbuttons create and undo OpenGL models

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Solution 3

Have a look at the Command design pattern (you may start at related Wikipedia page[^]): you may gain some insight.
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