Tk Library Source Code

Hello,

the combobox has some small bugs I included a patch
for:

1. the selection is not cleared when the widget loses
the focus
    (resulting in weird colour display when explicitly
setting colours 
     other than the default)
2. the dropdown list does not honour the the colours
requested for      the entry widget (always displayed
in dark grey).

I have included a diff as well as the complete new
combobox source.

Regards,
          Bastien

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fixed in 1.4.2.  I didn't add the one-line part1 fix because that 
breaks common behavior, and the ability to click into another 
widget, then later paste the selected combobox data there.

File Deleted - 18052:

File Added - 24499: combopatch.tar.gz

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Changed the patch: now also reacts to configure changes 
while the listbox is shown

File Added - 24426: patch_images.tar

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Forgot to say: screenshots taken from a Sun display, I don't 
know wether the Windows standard colors for entry and 
listbox are grey, too.

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> This doesn't correctly handle the changing of -entrybg 
after the fact.

Ermm, I didn't get this one. 

> Also, is it really correct to tie the listbox background to 
the entry background?

I'd plead for the simplicity and behaviour according to the 
least surprise effect. We could introduce special colors for 
the listbox colors, but I think that this leads to GUIs that 
are not conforming to actual style guides.

I have attached a tar containing three screenshots of an 
actual application: 

- combocolors.gif shows the colors given to the entry of a 
combobox
- combonopatch.gif shows how the listbox is drawn 
without the patch. Note that it is in the standard grey color 
while the entry is still white, and the "select" colors are 
also not what one would expect. This is also an example of 
what could happen if we'd introduced special colors for 
the listbox.
- combopatch.gif shows the effect of the patch where the 
combobox behaves like people know it from Windows, KDE 
etc.

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This doesn't correctly handle the changing of -entrybg after 
the fact.  Also, is it really correct to tie the listbox 
background to the entry background?

File Added - 18052: combo.tar