Croping tool that keeps proportion in diferent resolutions

I'm looking forward to an implementation of DisplayObject that can do the following for me: scaling and cropping a picture usage: I open the picture I have in my computer, insert the resolution I intend to use (like1280x800, for example) and then much like what you have here [[login to view URL]<wbr />flash/actionscript-3/fit-a-<wbr />displayobject-into-a-rectangle][1] it presents me with a preview of the final crop. ## Deliverables The idea is simple, and you can easily get it if I explai using another flash based tool. This is a more complex one. So just use it for reference. 1- Go to <[login to view URL]> and let the flash tool load 2 - Open a picture on your computer 3 - Select rescale. It presents you the actual picture size. 4 - Insert the new intended resolution of the final picture, for example, the screen in my computer is 1280x800 5 - Hit enter (At this point, instead of resizing the picture,I want the tool to design a square around the image that represents the new resolution) then the picture should auto-resize without leaving white borders, be it upscaling or downscaling. So it should occupy the whole new intended resolution, while keeping proportion. I would then move the picture up or down, left or right. Make it bigger zooming at a point, but always constrained at it's fixed proportion. When I hit process, it will crop the picture by the square that represents the cut (in my case 1280x800) and send the picture to one email account. Please ask if you have any doubt. if you pay attention to this behavior, this is exactly what I have in mind. Keep an eye on <[login to view URL]> and you'll get the idea.