diff options
Diffstat (limited to 'text.lua')
| -rw-r--r-- | text.lua | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/text.lua b/text.lua index d3cc29d..cbccc85 100644 --- a/text.lua +++ b/text.lua @@ -395,8 +395,20 @@ function Text.pageup() end function Text.pagedown() - Screen_top1.line = Screen_bottom1.line - Screen_top1.pos = Screen_bottom1.pos + -- If a line/paragraph gets to a page boundary, I often want to scroll + -- before I get to the bottom. + -- However, only do this if it makes forward progress. + local top2 = Text.to2(Screen_bottom1) + if top2.screen_line > 1 then + top2.screen_line = math.max(top2.screen_line-10, 1) + end + local new_top1 = Text.to1(top2) + if Text.lt1(Screen_top1, new_top1) then + Screen_top1 = new_top1 + else + Screen_top1.line = Screen_bottom1.line + Screen_top1.pos = Screen_bottom1.pos + end --? print('setting top to', Screen_top1.line, Screen_top1.pos) Cursor1.line = Screen_top1.line Cursor1.pos = Screen_top1.pos |