akkartik/links.love - Change SVJZZDC3K6AKAXHGRNAZKRE2ZXEKJANNLG7LSSUZJARFBL5F7C4AC

snapshot - no, that's all wrong

I've been only thinking about up arrow when cursor is at top of screen. Hopefully this is better.

Created by Kartik K. Agaram on May 20, 2022

SVJZZDC3K6AKAXHGRNAZKRE2ZXEKJANNLG7LSSUZJARFBL5F7C4AC

Dependencies

In channels

main

Change contents

Replacement in text.lua at line 222 [6.1]

B:BD[4.4030] → [5.83:129]

    if Top_screen_line_starting_pos == 1 then

[4.4030]

[5.129]

    local screen_line_index,screen_line_starting_pos = Text.pos_at_start_of_cursor_screen_line()
    if screen_line_starting_pos == 1 then
      print('cursor is at first screen line of its line')

Replacement in text.lua at line 238 [6.1]

B:BD[3.359] → [3.359:425]

          Top_screen_line_starting_pos = screen_line_starting_pos

[3.359]

[3.425]

          print('previous screen line starts at '..tostring(screen_line_starting_pos)..' of its line')
          if Screen_top_line == Cursor_line and Top_screen_line_starting_pos == screen_line_starting_pos then
            Top_screen_line_starting_pos = screen_line_starting_pos
          end

Replacement in text.lua at line 252 [6.1]

B:BD[5.742] → [5.742:860]

      local screen_line_index = table.find(Lines[Cursor_line].screen_line_starting_pos, Top_screen_line_starting_pos)

[5.742]

[5.860]

      print('cursor is NOT at first screen line of its line')

Replacement in text.lua at line 254 [6.1]

B:BD[5.896] → [5.896:1136]

      Top_screen_line_starting_pos = Lines[Cursor_line].screen_line_starting_pos[screen_line_index-1]
      local s = string.sub(Lines[Cursor_line].data, Top_screen_line_starting_pos)
      Cursor_pos = Text.nearest_cursor_pos(s, Cursor_x)

[5.896]

[7.268]

      new_screen_line_starting_pos = Lines[Cursor_line].screen_line_starting_pos[screen_line_index-1]
      print('switching pos of screen line at cursor from '..tostring(screen_line_starting_pos)..' to '..tostring(new_screen_line_starting_pos))
      if Screen_top_line == Cursor_line and Top_screen_line_starting_pos == screen_line_starting_pos then
        Top_screen_line_starting_pos = new_screen_line_starting_pos
        print('also setting pos of top of screen to '..tostring(Top_screen_line_starting_pos))
      end
      local s = string.sub(Lines[Cursor_line].data, new_screen_line_starting_pos)
      Cursor_pos = new_screen_line_starting_pos + Text.nearest_cursor_pos(s, Cursor_x) - 1
      print('cursor pos is now '..tostring(Cursor_pos))

Insertion in text.lua at line 279 [6.1]

[7.366]

[4.4909]

    end
  end
end
function Text.pos_at_start_of_cursor_screen_line()
  if Lines[Cursor_line].screen_line_starting_pos == nil then
    return 1,1
  end
  for i=#Lines[Cursor_line].screen_line_starting_pos,1,-1 do
    local spos = Lines[Cursor_line].screen_line_starting_pos[i]
    if spos <= Cursor_pos then
      return i,spos

Insertion in text.lua at line 293 [6.1]
[6.464]
[8.1]
```
  assert(false)
```

Replacement in manual_tests at line 25 [9.1]

B:BD[5.1441] → [5.1441:1511]

    if top line wrapped before, it scrolls up by only one screen line

[5.1441]

[3.597]

    if cursor line wrapped before, it scrolls up by only one screen line

Replacement in manual_tests at line 28 [9.1]

B:BD[5.1613] → [5.1613:1685]

    if top line wrapped before, it scrolls down by only one screen line

[5.1613]

    if cursor line wrapped before, it scrolls down by only one screen line

Replacement in main.lua at line 41 [11.2]

B:BD[10.18] → [2.3:74]

Cursor_pos = 1  -- in Unicode codepoints, from 1 to utf8.len(line) + 1

[10.18]

[12.1238]

Cursor_pos = 15  -- in Unicode codepoints, from 1 to utf8.len(line) + 1

Replacement in main.lua at line 50 [11.2]

B:BD[13.68] → [14.271:360]

Top_screen_line_starting_pos = 1  -- when top of screen starts in between a wrapped line

[13.68]

[14.360]

Top_screen_line_starting_pos = 6  -- when top of screen starts in between a wrapped line

Replacement in main.lua at line 64 [11.2]

∅:D[15.23] → [11.95:136]

B:BD[11.95] → [11.95:136]

B:BD[11.136] → [10.366:434]

∅:D[10.434] → [15.24:78]

B:BD[16.102] → [15.24:78]

B:BD[15.78] → [10.435:505]

  love.window.setMode(0, 0)  -- maximize
  Screen_width, Screen_height, Screen_flags = love.window.getMode()
  -- shrink slightly to account for window decoration
  Screen_width = Screen_width-100
  Screen_height = Screen_height-100

[15.23]

[10.505]

--?   love.window.setMode(0, 0)  -- maximize
--?   Screen_width, Screen_height, Screen_flags = love.window.getMode()
--?   -- shrink slightly to account for window decoration
--?   Screen_width = Screen_width-100
--?   Screen_height = Screen_height-100
  Screen_width = 120
  Screen_height = 200

Replacement in main.lua at line 73 [11.2]

B:BD[17.43] → [14.456:479]

∅:D[14.479] → [18.87:135]

B:BD[17.43] → [18.87:135]

--?   Line_width = 100
  Line_width = math.floor(Screen_width/2/40)*40

[17.43]

[19.2]

  Line_width = 100
--?   Line_width = math.floor(Screen_width/2/40)*40