Hello All,
I am trying to configure gvim in a portable manner to use the maximum
number of lines that will fit on the screen. After a bit of searching,
I found this under the help for 'lines':
When Vim is running in the GUI or in a resizable window, setting
this option will cause the window size to be changed. When you only
want to use the size for the GUI, put the command in your |gvimrc|
file. Vim limits the number of lines to what fits on the screen.
You can use this command to get the tallest window possible:
:set lines=999
When I am running under Windows, this works great. However, when
running under Linux, it doesn't limit the window to the size of the
screen - I get a really tall window that extends well below the bottom
of the screen.
The relevant code is in gui_set_shellsize - the stack trace on Linux
looks like this:
#0 gui_set_shellsize (mustset=1, fit_to_display=0, direction=15) at
gui.c:1548
#1 0x00000000005b9829 in ui_set_shellsize (mustset=1) at ui.c:329
#2 0x00000000005b5218 in set_shellsize (width=80, height=999,
mustset=1) at term.c:3057
#3 0x0000000000537977 in set_num_option (opt_idx=169,
varp=0x871160 "\347\003", value=999, errbuf=0x7fffffffd3c0 "",
errbuflen=80, opt_flags=0) at option.c:8491
Note that the second parameter to gui_set_shellsize, fit_to_display, is
0. This is because ui_set_shellsize, when calling gui_set_shellsize,
always passes FALSE for the fit_to_display parameter on all
non-Microsoft Windows platforms (it always passes TRUE under Windows).
I wondered why this was so, so I dug through the version control
history, but it appears that this behavior has been present since the
first checkin to CVS.
So, except on Windows, the documentation does not match the actual
behavior. This leads to my first question - is there a reason for
this? I have patched my build of gvim so that gui_set_shellsize forces
fit_to_display to be TRUE no matter what was passed in, and I get the
documented behavior. So, on Linux at least, there does not appear to be
a technical reason why gvim cannot behave as documented.
I am happy to make an attempt at a patch, but I need direction as to
which avenue to pursue:
A) update the documentation to note the difference between platforms,
make no changes to the code, and continue patching my local copy of gvim.
B) change ui_set_shellsize to always pass TRUE for the fit_to_display
parameter of gui_set_shellsize, no matter the platform. Would this
break existing scripts/configurations? Is there a use case for not
wanting to limit the window size to fit on the screen when setting lines
(or columns)?
C) add a new boolean option which controls whether or not the window
size is limited to the size of the screen, defaulting to true on Windows
on false on all other platforms.
D) another approach I haven't thought of yet
Feedback is appreciated.
Cheers,
Daniel Harding
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