Zoom in/out config or plugin

[rickywu]

Seems cannnot use <C-+> or to Zoom
any other plugin can do this or can config like neodie:

if vim.g.neovide == true then
  vim.api.nvim_set_keymap("n", "<C-=>", ":lua vim.g.neovide_scale_factor = math.min(vim.g.neovide_scale_factor + 0.1,  1.0)<CR>", { silent = true })
  vim.api.nvim_set_keymap("n", "<C-->", ":lua vim.g.neovide_scale_factor = math.max(vim.g.neovide_scale_factor - 0.1,  0.1)<CR>", { silent = true })
  vim.api.nvim_set_keymap("n", "<C-+>", ":lua vim.g.neovide_transparency = math.min(vim.g.neovide_transparency + 0.05, 1.0)<CR>", { silent = true })
  vim.api.nvim_set_keymap("n", "<C-_>", ":lua vim.g.neovide_transparency = math.max(vim.g.neovide_transparency - 0.05, 0.0)<CR>", { silent = true })
  vim.api.nvim_set_keymap("n", "<C-0>", ":lua vim.g.neovide_scale_factor = 0.5<CR>", { silent = true })
  vim.api.nvim_set_keymap("n", "<C-)>", ":lua vim.g.neovide_transparency = 0.9<CR>", { silent = true })
end

[Jint-lzxy]

You might want to use some Vimscript for this!¹ For example, you can change the first line to:²³

let g:neovide_scale_factor = (g:neovide_scale_factor + 0.1) > 1.0 ? 1.0 : g:neovide_scale_factor + 0.1

If you add this to a keymap definition:

["n|<C-=>"] = map_cr("let g:neovide_scale_factor = (g:neovide_scale_factor + 0.1) > 1.0 ? 1.0 : g:neovide_scale_factor + 0.1")
	:with_noremap()
	:with_silent(),

it should work nicely! It's been running smoothly for me.

Footnotes

1. I've often run into problems when tryna update Vim's built-in dictionaries in a keymap, but it turns out that Vimscript manages that much more effectively. ↩

2. Vim's min() and max() don't work with floats, so that's why we're using a ternary expression to avoid E805. ↩

3. If you're looking for better error handling in case g:neovide_scale_factor is undefined, you can use get(). ↩