title: Gui toolkits, which should I use?
body: <p>I am writing a fairly large and complex data analysis program and I have reached the point where I think it is about time to build a GUI for the program. So my question is:</p>
  
  <p>Which GUI toolkit should I use?</p>
  
  <p>I am completely new to coding and building GUIs and would appreciate any guidance that can be offered. It doesn't have to be the simplest tool kit in the world, I learn rather fast. However, it does need to be able to do the following things (some if not all of these are probably incredibly basic for any given toolkit but I thought that it would be good to throw all this out there just in case).</p>
  
  <p>It has to allow me to draw directly to the screen so that I can put graphs (spectra really), plots and things like them up for the user to see. I need to be able to collect position information on where they clicked on aforementioned spectra. I need to be able to display text and take text input from the user. It needs to be able to generate menus (you know File, Edit, etc). If it were to have some built in widget for generating tables that would be handy (though I can surmount a lack of that if I can draw directly to the screen). It needs to be able to pop up warnings, dialogue boxes, save and open boxes, etc. That is pretty much it, most of these seem pretty basic when I write them out but I don't want to get the GUI partly coded and then realize that I I need to rewrite it with a different toolkit.</p>
  
  <p>It should be noted that I have written this program in C++ and that I don't want to have to write the GUI part in C or something else so the toolkit needs to support C++.</p>
  
  <p>Additionally a cross platform toolkit would be preferable over a single platform toolkit. However if it must be a single platform toolkit then I would prefer it be for Linux.</p>
  
  <p>Finally, I would DRAMATICALLY prefer an open source toolkit to a closed source toolkit.</p>
  
  <p>Beyond that I cannot think of anything to add. Thank you in advance for your time and answers.</p>
  
  <p>Hmmm based on the answers I shall look at both Qt and wxWidgets and see which appeals to me more. I with I could accept multiple answers as accepted but I can't, and since I am looking at two things it would be unfair to only accept one of the answers, perhaps in a week or two then I have looked at the toolkits and figured out which I want to use.</p>