Hi Russell,
On 2/19/15 7:23 PM, Russell Owen wrote:
> With this fix for font metrics appearance of radiobutton and checkbutton
> is spectacularly better on my MacOS system. Button sizes are now correct
> for a variety of text labels, which has not been true for a long time. I
> am very pleased!
Thanks for the good words. Credit for the metrics improvements goes to
Marc Culler, who has provided many essential patches on this project.
>
> Two remaining issues I observe:
> - -bd (borderwidth) is ignored by checkbutton and radiobutton on MacOS,
> though it is obeyed on unix.
> - a checkbutton or radiobutton with only an icon (indicatoron=0 and no
> text) shows no visible difference between being checked or unchecked.
> The frame that should be present (and is present for buttons with text
> and for all buttons on unix) is missing. The obvious workaround would be
> to manually specify a borderwidth, but that is ignored due to the first
> bug mentioned.
>
>
Here is where we are getting into some areas where Mac buttons simply
work differently than Unix buttons because they are natively rendered.
To my knowledge Mac buttons--Carbon, Cocoa or HITheme--have never
honored some configuration flags, such as border width, background, etc.
There simply isn't a way to configure some things when the native API is
used. I don't have a comprehensive list, but some of it is documented
informally at the wiki or in the Tcl-Mac archives. (The same is likely
true of Windows.)
There are solutions for how to show a selected state for checkbuttons
and radiobuttons with images. If you want to leave indicatoron=0, then
consider setting the -selectimage flag--using a different image or
bitmap when the state is selected. The Wish demo has an example of this,
and you can probably find simple code examples online.
--Kevin
--
Kevin Walzer
Code by Kevin/Mobile Code by Kevin
http://www.codebykevin.com
http://www.wtmobilesoftware.com
|
