Problem: Display moves up and down with 'incsearch' and 'smoothscroll'.
Solution: Do not check if w_skipcol changed. (Luuk van Baal, closes#12410,
closes#12409)
Problem: Display wrong when moving cursor to above the top line and
'smoothscroll' is set.
Solution: Call adjust_skipcol() in more places and make it work better.
(Luuk van Baal, closes#12395)
Problem: Position of marker for 'smoothscroll' not computed correctly.
Solution: Take 'list' and other options into account. (Luuk van Baal,
closes#12393)
Problem: Cursor moves to wrong line when 'foldmethod' is "diff". (Rick
Howe)
Solution: Adjust logic for scrolling. (Luuk van Baal, closes#12364,
closes#12218)
Problem: 'smoothscroll' does not always work properly.
Solution: Do not reset w_skipcol after it was intentionally set. (Luuk van
Baal, closes#12360, closes#12199, closes#12323)
Problem: Scrolling too many lines when 'wrap' and 'diff' are set.
Solution: Only scroll by screenlines for 'diff' when 'wrap' is not set.
(closes#12211)
Problem: Cursor positioning and display problems with 'smoothscroll' and
using "zt", "zb" or "zz".
Solution: Adjust computations and conditions. (Yee Cheng Chin,
closes#11764)
Problem: Display errors when adding or removing text property type.
Solution: Perform a full redraw. Only use text properties for which the
type is defined. (closes#11655)
Problem: May redraw when not needed, causing slow scrolling.
Solution: Do not redraw when w_skipcol doesn't change. When w_skipcol
changes only redraw from the top. (issue #11559)
Problem: With 'smoothscroll' typing "0" may not go to the first column.
Solution: Recompute w_cline_height when needed. Do not scroll up when it
would move the cursor.
Problem: Breakindent test cases are commented out.
Solution: Adjust expected result to slightly different behavior. Correct
computations for cursor position.
Problem: Wrong cursor position when using "gj" and "gk" in a long line.
Solution: Adjust computations for the cursor position and skipcol. Re-enable
tests that pass now, disable failing breakindent test.
Problem: Cursor position invalid when scrolling with 'smoothscroll' set.
(Ernie Rael)
Solution: Add w_valid_skipcol and clear flags when it changes. Adjust
w_skipcol after moving the cursor.
Problem: With 'smoothscroll' and 'scrolloff' non-zero the cursor position
is not properly adjusted in a long line.
Solution: Move the cursor further up or down in the line.
Problem: Cursor line only partly shows with 'smoothscroll' and 'scrolloff'
zero.
Solution: Do not use 'smoothscroll' when adjusting the bottom of the window.
(closes#11269)
Problem: Too many #ifdefs.
Solution: Graduate the +cmdwin feature. Now the tiny and small builds are
equal, drop the small build. (Martin Tournoij, closes#11268)
Problem: The 'splitscroll' option is not a good name.
Solution: Rename 'splitscroll' to 'splitkeep' and make it a string option,
also supporting "topline". (Luuk van Baal, closes#11258)
Problem: with 'smoothscroll' set CTRL-E does not work properly when
'foldmethod' is set to "indent". (Yee Cheng Chin)
Solution: Merge the code for scroling with folds and 'smoothscroll'.
(closes#11262)
Problem: Using freed memory when 'tagfunc' wipes out buffer that holds
'complete'.
Solution: Make a copy of the option. Make sure cursor position is valid.
Problem: When opening/closing window text moves up/down.
Solution: Add the 'splitscroll' option. When off text will keep its
position as much as possible.
