Re: Justificati18n problems @gtk.Text{Buffer,View}

[Owen Taylor <otaylor redhat com>]

On Sun, 2003-10-12 at 18:53, Yotam Medini wrote:
> Looks like there are problems with (or my misuse of - please let me know) 
> Gtk+'s TextBuffer/TextView regarding paragraph layout and especially
> justification when using parameters controlling:
>   + Bidirectional editing
>   + Line wrapping
>   + Justification

The proper place for GTK+ bug reports is bugzilla.gnome.org. It would
be better if you could provide a C version of the program, but if you
aren't familiar with C in GTK+, just attach the Python program.

Regards,
						Owen

> The attached small Python programs (just.py) tested with 
>    gtk=(2, 2, 1), pygtk=(1, 99, 16)
> when run without parameters, nicely shows two small boring paragraphs.
> Running with '-help' gives a 'usage message':
>    Usage:
>       ./just.py
>       [-help]
>       [-dir <ltr | none | rtl>]
>       [-wrap <char | none | word>]
>       [-justpar1 <justification>]
>       [-justpar2 <justification>]
> 
>    Where:
>       <justification> := <center | fill | right | left>
> 
> The problems that can be demonstrated are:
> 
> + When running:
>     ./just -dir rtl
>   Indeed the first Hebrew 'Aleph' letter is shown on the right,
>   But justification is still LEFT, and editing is still LTR.
>   This is 'solved' by running:
>     ./just -dir rtl -wrap word
>   One can only wonder why wrapping-mode effects the justification.
> 
> + Trying to control specific justification of each of the two paragraphs:
>      ./just.py -justpar1 left  -justpar2 left
>      ./just.py -justpar1 right -justpar2 right
>      ./just.py -justpar1 left  -justpar2 right
>      ./just.py -justpar1 right -justpar2 left
>   all result with the same (LEFT) behavior.
> 
>   Adding  '-dir rtl' option  to the above 4 does nothing.
>   But with  '-wrap char'  or  '-wrap word'
>   Once can see the expected desired 2x2=4 justification-combinations
>      ./just.py -wrap char -justpar1 left  -justpar2 left
>      ./just.py -wrap char -justpar1 right -justpar2 right
>      ./just.py -wrap char -justpar1 left  -justpar2 right
>      ./just.py -wrap char -justpar1 right -justpar2 left
> 
> + But adding the  '-dir rtl'  option to the last 
>   4 'successful' behavior inverts the desired justification.
>   For example, running:
>      ./just.py -dir rtl -wrap char -justpar1 right -justpar2 left
>   Justifies the 1st paragraph to the _left_, and
>   justifies the 2nd paragraph to the _right_.
> 
> regards -- yotam
>