vim/vim-indent-guides
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Refactored some core functionality and implemented an initial version of the custom guide size feature [issue2]

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This commit is contained in:
Nate Kane 2011-01-04 23:53:17 +10:00
parent 538554b19f
commit f2608db67e
1 changed files with 70 additions and 33 deletions
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103
autoload/indent_guides.vim
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@ -32,6 +32,8 @@ endfunction
"
function! indent_guides#enable()
let g:indent_guides_autocmds_enabled = 1
call indent_guides#init_buffer_vars()
call indent_guides#highlight_colors()
call indent_guides#clear_matches()
@ -39,9 +41,8 @@ function! indent_guides#enable()
" will automagically figure out whether to use tabs or spaces
for l:level in range(1, g:indent_guides_indent_levels)
let l:group = 'IndentGuides' . ((l:level % 2 == 0) ? 'Even' : 'Odd')
let l:multiplier = (&l:expandtab == 1) ? &l:shiftwidth : 1
let l:pattern = '^\s\{' . (l:level * l:multiplier - l:multiplier) . '\}\zs'
let l:pattern .= '\s\{' . l:multiplier . '\}'
let l:pattern = '^\s\{' . (l:level * b:indent_size - b:indent_size) . '\}\zs'
let l:pattern .= '\s\{' . b:guide_size . '\}'
let l:pattern .= '\ze'
" define the higlight pattern and add to list
@ -93,8 +94,7 @@ endfunction
" light or dark preset colors depending on the `set background=` value.
"
function! indent_guides#cterm_highlight_colors()
let l:colors = (&g:background == 'dark') ?
\ ['darkgrey', 'black'] : ['lightgrey', 'white']
let l:colors = (&g:background == 'dark') ? ['darkgrey', 'black'] : ['lightgrey', 'white']
exe 'hi IndentGuidesEven ctermbg=' . l:colors[0]
exe 'hi IndentGuidesOdd ctermbg=' . l:colors[1]
@ -105,22 +105,20 @@ endfunction
" vim.
"
function! indent_guides#gui_highlight_colors()
let l:hi_normal = indent_guides#capture_highlight('Normal')
let l:hex_pattern = 'guibg=\zs'. g:indent_guides_hex_color_pattern . '\ze'
let l:name_pattern = "guibg='\\?\\zs[0-9A-Za-z ]\\+\\ze'\\?"
let l:hi_normal_guibg = ''
" capture the backgroud color from the normal highlight
if l:hi_normal =~ l:hex_pattern
if b:hi_normal =~ g:indent_guides_color_hex_guibg_pattern
" hex color code is being used, eg. '#FFFFFF'
let l:hi_normal_guibg = matchstr(l:hi_normal, l:hex_pattern)
elseif l:hi_normal =~ l:name_pattern
let l:hi_normal_guibg = matchstr(b:hi_normal, g:indent_guides_color_hex_guibg_pattern)
elseif b:hi_normal =~ g:indent_guides_color_name_guibg_pattern
" color name is being used, eg. 'white'
let l:color_name = matchstr(l:hi_normal, l:name_pattern)
let l:color_name = matchstr(b:hi_normal, g:indent_guides_color_name_guibg_pattern)
let l:hi_normal_guibg = color_helper#color_name_to_hex(l:color_name)
endif
if l:hi_normal_guibg =~ g:indent_guides_hex_color_pattern
if l:hi_normal_guibg =~ g:indent_guides_color_hex_pattern
" calculate the highlight background colors
let l:hi_odd_bg = indent_guides#lighten_or_darken_color(l:hi_normal_guibg)
let l:hi_even_bg = indent_guides#lighten_or_darken_color(l:hi_odd_bg)
@ -136,15 +134,70 @@ endfunction
" colorscheme is being used.
"
function! indent_guides#lighten_or_darken_color(color)
let l:percent = g:indent_guides_color_change_percent
let l:new_color = ''
let l:percent = g:indent_guides_color_change_percent / 100.0
let l:new_color = (&g:background == 'dark') ?
\ color_helper#hex_color_lighten(a:color, l:percent) :
\ color_helper#hex_color_darken (a:color, l:percent)
if (&g:background == 'dark')
let l:new_color = color_helper#hex_color_lighten(a:color, l:percent)
else
let l:new_color = color_helper#hex_color_darken (a:color, l:percent)
endif
return l:new_color
endfunction
"
" Define default highlights.
"
function! indent_guides#define_default_highlights()
exe 'hi IndentGuidesOdd guibg=NONE ctermbg=NONE'
exe 'hi IndentGuidesEven guibg=NONE ctermbg=NONE'
endfunction
"
" Init the w:indent_guides_matches variable.
"
function! indent_guides#init_matches()
let w:indent_guides_matches = exists('w:indent_guides_matches') ? w:indent_guides_matches : []
endfunction
"
" We need to initialize these vars every time a buffer is entered while the
" plugin is enabled.
"
function! indent_guides#init_buffer_vars()
let b:indent_size = indent_guides#get_indent_size()
let b:guide_size = indent_guides#calculate_guide_size()
let b:hi_normal = indent_guides#capture_highlight('Normal')
endfunction
"
" Calculate the indent guide size. Ensures the guide size is less than or
" equal to the actual indent size, otherwise some weird things can occur.
"
" NOTE: Currently, this only works when soft-tabs are being used.
"
function! indent_guides#calculate_guide_size()
let l:guide_size = g:indent_guides_indent_guide_size
let l:indent_size = indent_guides#get_indent_size()
if l:indent_size > 1 && l:guide_size >= 1
let l:guide_size = (l:guide_size > b:indent_size) ? b:indent_size : l:guide_size
else
let l:guide_size = b:indent_size
endif
return l:guide_size
endfunction
"
" Gets the indent size, which depends on whether soft-tabs or hard-tabs are
" being used.
"
function! indent_guides#get_indent_size()
return (&l:expandtab == 1) ? &l:shiftwidth : 1
endfunction
"
" Captures and returns the output of highlight group definitions.
"
@ -159,19 +212,3 @@ function! indent_guides#capture_highlight(group_name)
return l:output
endfunction
"
" Init the w:indent_guides_matches variable.
"
function! indent_guides#init_matches()
let w:indent_guides_matches =
\ exists('w:indent_guides_matches') ? w:indent_guides_matches : []
endfunction
"
" Define default highlights.
"
function! indent_guides#define_default_highlights()
exe 'hi IndentGuidesOdd guibg=NONE ctermbg=NONE'
exe 'hi IndentGuidesEven guibg=NONE ctermbg=NONE'
endfunction