** checkButtonScaled **

[bll] 2016-05-10:  The standard [ttk::checkbutton] does not scale well for 4K displays.
This code is a pure tcl implementation of checkbuttons with no graphics.
It includes styling for all 22 themes.  I have attempted to match each
theme's styling reasonably well.  The package will change themes on a <<ThemeChanged>> event.

Place the package require in your code after tk scaling has been set.

Download from:

    http://gentoo.com/tcl/checkButtonScaled.tcl%|%http://gentoo.com/tcl/checkButtonScaled.tcl%|%

'''Version 1.7 ''' 2016-5-11
    
    * Fixed scaling.
    * Improved size of indicator character.

'''Version 1.6 ''' 2016-5-10

    * Added propagateBinds routine
    * Handle -style option -- loads styling from the ttk::style
    * Was missing -font
    * Fixed a bug for configure -variable

** Screenshot **

[Scaled-checkbutton-image]

** Discussion **

[dbohdan] 2016-05-12: The fact that you have a styling for each of the 22 themes is impressive.

Could you put a high-DPI screenshot of the widget on this page?

[bll]  2016-5-12:  Well, I actually don't have a 4K screen to test with.  But I can set a windows VM to 3840x2160 video mode.
Which I can then view in VirtualBox's scaled mode (it's quite horrible).  The image below was made with Window's 
snipping tool inside the VM with
[tk scaling] set to 2.67 (192 dpi).  Windows mentioned 192 dpi when I set the custom text size to 200%, so I used that number.
On the left is a standard [ttk::checkbutton], on the right is the scaled checkbutton.

[dbohdan] 2016-05-13: Looks good! I've moved the screenshot higher on the page.

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