Have a look at the `snip%` and `pasteboard%` classes: you can represent each glyph using a `snip%` and the pasteboard will handle the moving it with the mouse. You can derive the `snip%` and `pasteboard%` objects to add new functionality -- this is easier than implementing a mouse move operation using the `canvas%` `on-event` method.
While not exactly what you need, I wrote a blog post about using `snip%` objects, and in the first example, the chess pieces themselves are actually Unicode Glyphs, so you could easily modify it to have different Glyphs/Letters that can be moved around in a canvas: https://alex-hhh.github.io/2018/10/chess-game-using-racket-s-pasteboard.html Alex. On Monday, June 24, 2019 at 4:40:34 AM UTC+8, Amir Teymuri wrote: > > If i want to use fonts on a canvas in a way that each single Glyph/Font is > movable around the canvas by mouse, is it a good idea to have a class > drivative of canvas% for each new font and then override the on-event > method of them to update its coordinates on the main canvas? Or is there a > better more effiicient way for doing this? > > Greetings, > Amir > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/71492a5d-ba15-4191-9a74-67880e36cb88%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
