I completely agree about the mousewheel. However, would it make sense for
OS X to combine command with mousewheel? I have never seen that before. I
am not sure if I can bind the zoom gesture with tkinter, but I can find
out.

I also think the shortcuts are not intuitive as an OS X user, as command
should be used instead of Ctrl.

What I can do check the operating system and define the font shortcuts
accordingly. I am not sure about redefining the Menu shortcuts as that
seems like a separate issue.

On Mon, Jul 21, 2014 at 11:52 PM, Ned Deily <report@bugs.python.org> wrote:

>
> Ned Deily added the comment:
>
> Lita, I tried the patch.  From the perspective of an OS X user, while I
> might expect that using the zoom gesture on a mousepad or using a
> mousewheel (the equivalent) to increase or decrease the font size, I would
> even more expect scrolling to work especially if scrollbars are present.
>  Clearly, scrolling is more important so, if it is not possible to bind Tk
> mousewheel events without affecting scrolling, I would abandon the
> mousewheel.  On OS X, the standard way to provide size adjustment (of fonts
> or images) is to provide "Bigger" or "Smaller" menu items with the standard
> keyboard shortcuts of Command-Shift-Equal (and Command-Equal) which is
> displayed as "Command +" (so the user on a US keyboard just presses the
> Command key and the =/+ key) and Command-Hyphen ("Command -").  The Apple
> OS X Human Interface Guidelines go into more detail and you can see these
> shortcuts in action in many standard OS X applications (TextEdit, Mail,
> Safari, etc).  As it stands today, turtledemo does not use the standard OS
> X menu bar where these commands would normally be placed.  And that's a bit
> of a separate problem because since turtledemo doesn't change the root menu
> it defaults to a Tk-provided one which includes things "Run Widget Demo"
> under the file menu.  To be a proper OS X app, turtledemo should customize
> the menu, at least removing the widget demo item and then it could add the
> Bigger and Smaller menu items to a Format menu.  Actually, the turtledemo
> Examples and Help pulldown options would ideally also be available in the
> standard menu hierarchy.  I'm not suggesting that is a requirement but
> that's what I think an OS X user would expect and what the Apple HIG would
> require.
>
>
> https://developer.apple.com/library/mac/documentation/userexperience/conceptual/applehiguidelines/KeyboardShortcuts/KeyboardShortcuts.html
>
> https://developer.apple.com/library/mac/documentation/userexperience/conceptual/applehiguidelines/Menus/Menus.html
>
> ----------
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue21933>
> _______________________________________
>