source: up/down in file navigator

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Sep 18, 2022, 7:37 AM

MDGHRTIFMMWBQZPIUCPE6ZM65Z4UOEQOHYDGH6J3M7MNQ6DCMR4AC

Dependencies

[2] KKMFQDR4 editing source code from within the app

Change contents

edit in commands.lua at line 107

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log(2, 'file navigator: '..chord)
log(2, ('cursor initially at %d %s'):format(File_navigation.index, File_navigation.candidates[File_navigation.index]))
edit in commands.lua at line 122

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end
elseif chord == 'down' then
file_navigator_down()
elseif chord == 'up' then
file_navigator_up()
end
end

function file_navigator_up()
local y, x, width = file_coord(File_navigation.index)
local index = file_index(y-Editor_state.line_height, x, width)
if index then
File_navigation.index = index
end
end

function file_navigator_down()
local y, x, width = file_coord(File_navigation.index)
local index = file_index(y+Editor_state.line_height, x, width)
if index then
File_navigation.index = index
end
end

function file_coord(index)
local y,x = Menu_status_bar_height, 5
for i,filename in ipairs(File_navigation.candidates) do
local width = App.width(to_text(filename))
if x + width > App.screen.width - 5 then
y = y + Editor_state.line_height
x = 5
end
if i == index then
return y, x, width
end
x = x + width + 30
end
end

function file_index(fy, fx, fwidth)
log_start('file index')
log(2, ('for %d %d %d'):format(fy, fx, fwidth))
local y,x = Menu_status_bar_height, 5
local best_guess, best_guess_x, best_guess_width
for i,filename in ipairs(File_navigation.candidates) do
local width = App.width(to_text(filename))
if x + width > App.screen.width - 5 then
y = y + Editor_state.line_height
x = 5
edit in commands.lua at line 172

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if y == fy then
log(2, ('%d: correct row; considering %d %s %d %d'):format(y, i, filename, x, width))
if best_guess == nil then
log(2, 'nil')
best_guess = i
best_guess_x = x
best_guess_width = width
elseif math.abs(fx + fwidth/2 - x - width/2) < math.abs(fx + fwidth/2 - best_guess_x - best_guess_width/2) then
best_guess = i
best_guess_x = x
best_guess_width = width
end
log(2, ('best guess now %d %s %d %d'):format(best_guess, File_navigation.candidates[best_guess], best_guess_x, best_guess_width))
end
x = x + width + 30
edit in commands.lua at line 188

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log_end('file index')
return best_guess