akkartik/lines-and-links - Change D3FLL7SL45CAFMGVOVABX75JBG4LGL4O35R5AIF3INW7N4VUP4DAC

start showing source menu file navigation state graphically

I'm a bit leery of going down this road:

If there's a bug in how I render logs graphically that could be extremely misleading. Perhaps this suggests that the code to log things should be significantly simpler than the code that might be debugged. If writing the debug helper requires all my smarts I'm not smart enough to debug using the helper, etc. Given this idea, the fact that I'm copying production code into the logging helper is concerning.
There's a question of what code it's ok for logging helpers to depend on. This is an issue shared with tests. I often implicitly (and without meaning to) assume the presence of some well-tested helpers when writing tests. If those helpers ever break I can get into a rabbit hole of debugging. This problem might be even more insidious with logging helpers that will give me no indication when they break.

Still and all, it's cool to see menus in my logs. Let's see if it's useful.

Created by Kartik K. Agaram on September 18, 2022

D3FLL7SL45CAFMGVOVABX75JBG4LGL4O35R5AIF3INW7N4VUP4DAC

Dependencies

In channels

main

Change contents

Insertion in source.lua at line 2 [4.165766]
[4.165779]
[4.165779]
```
log_render = {}
```

Replacement in commands.lua at line 57 [4.204370]

B:BD[5.72] → [5.72:142]

    File_navigation.num_lines = source.num_lines_for_file_navigator()

[5.72]

[5.142]

    File_navigation.num_lines = source.num_lines_for_file_navigator(File_navigation.candidates)

Replacement in commands.lua at line 60 [4.204370]

B:BD[5.183] → [5.183:315]

  love.graphics.rectangle('fill', 0,Menu_status_bar_height, App.screen.width, File_navigation.num_lines * Editor_state.line_height)

[5.183]

[5.315]

  love.graphics.rectangle('fill', 0,Menu_status_bar_height, App.screen.width, File_navigation.num_lines * Editor_state.line_height + --[[highlight padding]] 2)

Replacement in commands.lua at line 74 [4.204370]

B:BD[4.206553] → [5.427:474]

function source.num_lines_for_file_navigator()

[4.206553]

[5.474]

function source.num_lines_for_file_navigator(candidates)

Replacement in commands.lua at line 77 [4.204370]

B:BD[5.507] → [5.507:565]

  for i,filename in ipairs(File_navigation.candidates) do

[5.507]

[2.29]

  for i,filename in ipairs(candidates) do

Replacement in commands.lua at line 108 [4.204370]

B:BD[3.65] → [3.65:186]

  log(2, ('cursor initially at %d %s'):format(File_navigation.index, File_navigation.candidates[File_navigation.index]))

[3.65]

[4.207173]

  log(2, {name='file_navigator_state', files=File_navigation.candidates, index=File_navigation.index})

Insertion in commands.lua at line 127 [4.204370]

[3.303]

  end
end
function log_render.file_navigator_state(o, x,y, w)
  -- duplicate structure of source.draw_file_navigator
  local num_lines = source.num_lines_for_file_navigator(o.files)
  local h = num_lines * Editor_state.line_height
  App.color(Menu_background_color)
  love.graphics.rectangle('fill', x,y, w,h)
  -- compute the x,y,width of the current index (in offsets from top left)
  local x2,y2 = 0,0
  local width = 0
  for i,filename in ipairs(o.files) do
    local filename_text = to_text(filename)
    width = App.width(filename_text)
    if x2 + width > App.screen.width - 5 then
      y2 = y2 + Editor_state.line_height
      x2 = 0
    end
    if i == o.index then
      break
    end
    x2 = x2 + width + 30

Insertion in commands.lua at line 151 [4.204370]

[3.309]

  -- figure out how much of the menu to display
  local menu_xmin = math.max(0, x2-w/2)
  local menu_xmax = math.min(App.screen.width, x2+w/2)
  -- now selectively print out entries
  local x3,y3 = 0,y  -- x3 is relative, y3 is absolute
  local width = 0
  for i,filename in ipairs(o.files) do
    local filename_text = to_text(filename)
    width = App.width(filename_text)
    if x3 + width > App.screen.width - 5 then
      y3 = y3 + Editor_state.line_height
      x3 = 0
    end
    if i == o.index then
      App.color(Menu_highlight_color)
      love.graphics.rectangle('fill', x + x3-menu_xmin - 5, y3-2, width+5*2, Editor_state.line_height+2*2)
    end
    if x3 >= menu_xmin and x3 + width < menu_xmax then
      App.color(Menu_command_color)
      App.screen.draw(filename_text, x + x3-menu_xmin, y3)
    end
    x3 = x3 + width + 30
  end
  --
  return h+20