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extract a function

This commit is contained in:
Kartik K. Agaram 2022-06-03 14:30:51 -07:00
parent 0d52962b3e
commit 1bdb931575
2 changed files with 25 additions and 20 deletions
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24
select.lua
View File

@ -50,6 +50,30 @@ function Text.clip_selection(line_index, apos, bpos)
end
end
-- draw highlight for line corresponding to (lo,hi) given an approximate x,y and pos on the same screen line
function Text.draw_highlight(line, x,y, pos, lo,hi)
if lo then
local lo_offset = utf8.offset(line.data, lo)
local hi_offset = utf8.offset(line.data, hi)
local pos_offset = utf8.offset(line.data, pos)
local lo_px
if pos == lo then
lo_px = 0
else
local before = line.data:sub(pos_offset, lo_offset-1)
local before_text = App.newText(love.graphics.getFont(), before)
lo_px = App.width(before_text)
end
--? print(lo,pos,hi, '--', lo_offset,pos_offset,hi_offset, '--', lo_px)
local s = line.data:sub(lo_offset, hi_offset-1)
local text = App.newText(love.graphics.getFont(), s)
local text_width = App.width(text)
love.graphics.setColor(0.7,0.7,0.9)
love.graphics.rectangle('fill', x+lo_px,y, text_width,Line_height)
love.graphics.setColor(0,0,0)
end
end
-- inefficient for some reason, so don't do it on every frame
function Text.mouse_pos()
local time = love.timer.getTime()

21
text.lua
View File

@ -52,26 +52,7 @@ function Text.draw(line, line_width, line_index)
if Text.le1(Screen_top1, {line=line_index, pos=pos}) then
if Selection1.line then
local lo, hi = Text.clip_selection(line_index, pos, pos+frag_len)
if lo then
local lo_offset = utf8.offset(line.data, lo)
local hi_offset = utf8.offset(line.data, hi)
local pos_offset = utf8.offset(line.data, pos)
local lo_px
if pos == lo then
lo_px = 0
else
local before = line.data:sub(pos_offset, lo_offset-1)
local before_text = App.newText(love.graphics.getFont(), before)
lo_px = App.width(before_text)
end
--? print(lo,pos,hi, '--', lo_offset,pos_offset,hi_offset, '--', lo_px)
local s = line.data:sub(lo_offset, hi_offset-1)
local text = App.newText(love.graphics.getFont(), s)
local text_width = App.width(text)
love.graphics.setColor(0.7,0.7,0.9)
love.graphics.rectangle('fill', x+lo_px,y, text_width,Line_height)
love.graphics.setColor(0,0,0)
end
Text.draw_highlight(line, x,y, pos, lo,hi)
end
--? print('drawing '..frag)
App.screen.draw(frag_text, x,y)