Fix displaying tabs and wide runes which don't fit in the window.
Don't overwrite the vertical divider and the adjacent window.
- For tabs: display only as many of the tab's spaces as fit in the window.
- For wide runes: if a rune doesn't fit, don't display it in this line at all.
If softwrap is on, display this rune in the next line.
Fixes#1979
Fixes issue with the usage of a slightly incorrect buffer height value
(v.Height should be v.Height-1 if statusline is displayed).
Also, to avoid too many duplications, the code reorganized a little:
buffer display params (width, height, gutter offset and others) are
calculated in a single place.
Softwrap implementation enhanced to fix various issues with scrolling,
centering, relocating etc.
The main idea is simple: work not with simple line numbers but
with (Line, Row) pairs, where Line is a line number in the buffer
and Row is a visual line (a row) number within this line.
The logic remains mostly the same, but simple arithmetic operations
on line numbers are replaced with corresponding operations on
(Line, Row) pairs.
Fixes#632, #1657
Fix regressions after ba98b55:
- Unable to override filetype autodetection by setting a specific filetype
for specific files, i.e. this doesn't work:
"*.h": {
"filetype": "c++"
},
- Unable to enable/disable syntax highlighting for specific files,
i.e. this doesn't work:
"*.c": {
"syntax": false
},
- "readonly" setting doesn't work (neither global nor per-filetype).
Fixed regression: since merging keybindings branch, TryBindKey and
UnbindKey and accordingly "bind" and "unbind" commands don't work
(fail to unmarshal bindings.json).
This is just a quick fixup to make TryBindKey and UnbindKey work again.
They still work with "buffer" bindings only.
In JumpToMatchingBrace, the loop should stop immediately after finding the matching bracket.
It causes multiple jumps in certain situations:
`(I [ ]{ }) => ( I[ ]{ })`
Fix the regression after 3b34a02: setting readonly option to true
in onBufferOpen lua callback doesn't work, since it is automatically
reset to false if write permission is not denied.
