" DrawIt.vim: a simple way to draw things in Vim
"
" Maintainer: Charles E. Campbell, Jr.
" Authors: Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz> - NOSPAM
" Sylvain Viart (molo@multimania.com)
" Version: 10
" Date: Jun 12, 2008
"
" Quick Setup: {{{1
" tar -oxvf DrawIt.tar
" Should put DrawItPlugin.vim in your .vim/plugin directory,
" put DrawIt.vim in your .vim/autoload directory
" put DrawIt.txt in your .vim/doc directory.
" Then, use \di to start DrawIt,
" \ds to stop Drawit, and
" draw by simply moving about using the cursor keys.
"
" You may also use visual-block mode to select endpoints and
" draw lines, arrows, and ellipses.
"
" Copyright: Copyright (C) 1999-2005 Charles E. Campbell, Jr. {{{1
" Permission is hereby granted to use and distribute this code,
" with or without modifications, provided that this copyright
" notice is copied with it. Like anything else that's free,
" DrawIt.vim is provided *as is* and comes with no warranty
" of any kind, either expressed or implied. By using this
" plugin, you agree that in no event will the copyright
" holder be liable for any damages resulting from the use
" of this software.
"
" Required: THIS SCRIPT REQUIRES VIM 7.0 (or later) {{{1
" GetLatestVimScripts: 40 1 :AutoInstall: DrawIt.vim
" GetLatestVimScripts: 1066 1 cecutil.vim
"
" Woe to her who is rebellious and polluted, the oppressing {{{1
" city! She didn't obey the voice. She didn't receive correction.
" She didn't trust in Yahweh. She didn't draw near to her God. (Zeph 3:1,2 WEB)
" ---------------------------------------------------------------------
" Load Once: {{{1
if &cp || exists("g:loaded_DrawIt")
finish
endif
let s:keepcpo= &cpo
set cpo&vim
" ---------------------------------------------------------------------
" Script Variables: {{{1
if !exists("s:saveposn_count")
let s:saveposn_count= 0
endif
let g:loaded_DrawIt= "v10"
"DechoTabOn
" =====================================================================
" DrawIt Functions: (by Charles E. Campbell, Jr.) {{{1
" =====================================================================
" ---------------------------------------------------------------------
" DrawIt#StartDrawIt: this function maps the cursor keys, sets up default {{{2
" drawing characters, and makes some settings
fun! DrawIt#StartDrawIt()
" call Dfunc("StartDrawIt()")
" StartDrawIt: report on [DrawIt] mode {{{3
if exists("b:dodrawit") && b:dodrawit == 1
" already in DrawIt mode
echo "[DrawIt] (already on, use ".((exists("mapleader") && mapleader != "")? mapleader : '\')."ds to stop)"
" call Dret("StartDrawIt")
return
endif
let b:dodrawit= 1
" indicate in DrawIt mode
echo "[DrawIt]"
" StartDrawIt: turn on mouse {{{3
if !exists("b:drawit_keep_mouse")
let b:drawit_keep_mouse= &mouse
endif
setlocal mouse=a
" StartDrawIt: set up DrawIt commands {{{3
com! -nargs=1 -range SetBrush <line1>,<line2>call DrawIt#SetBrush(<q-args>)
com! -count Canvas call s:Spacer(line("."),line(".") + <count> - 1,0)
" StartDrawIt: set up default drawing characters {{{3
if !exists("b:di_vert")
let b:di_vert= "|"
endif
if !exists("b:di_horiz")
let b:di_horiz= "-"
endif
if !exists("b:di_plus")
let b:di_plus= "+"
endif
if !exists("b:di_upright") " also downleft
let b:di_upright= "/"
endif
if !exists("b:di_upleft") " also downright
let b:di_upleft= "\\"
endif
if !exists("b:di_cross")
let b:di_cross= "X"
endif
if !exists("b:di_ellipse")
let b:di_ellipse= '*'
endif
" set up initial DrawIt behavior (as opposed to erase behavior)
let b:di_erase = 0
" StartDrawIt: option recording {{{3
let b:di_aikeep = &ai
let b:di_cinkeep = &cin
let b:di_cpokeep = &cpo
let b:di_etkeep = &et
let b:di_fokeep = &fo
let b:di_gdkeep = &gd
let b:di_gokeep = &go
let b:di_magickeep = &magic
let b:di_remapkeep = &remap
let b:di_repkeep = &report
let b:di_sikeep = &si
let b:di_stakeep = &sta
let b:di_vekeep = &ve
set cpo&vim
set nocin noai nosi nogd sta et ve=all report=10000
set go-=aA
set fo-=a
set remap magic
" StartDrawIt: save and unmap user maps {{{3
let b:lastdir = 1
if exists("mapleader")
let usermaplead = mapleader
else
let usermaplead = "\\"
endif
call SaveUserMaps("n","","><^v","DrawIt")
call SaveUserMaps("v",usermaplead,"abeflsy","DrawIt")
call SaveUserMaps("n",usermaplead,"h><v^","DrawIt")
call SaveUserMaps("n","","<left>","DrawIt")
call SaveUserMaps("n","","<right>","DrawIt")
call SaveUserMaps("n","","<up>","DrawIt")
call SaveUserMaps("n","","<down>","DrawIt")
call SaveUserMaps("n","","<left>","DrawIt")
call SaveUserMaps("n","","<s-right>","DrawIt")
call SaveUserMaps("n","","<s-up>","DrawIt")
call SaveUserMaps("n","","<s-down>","DrawIt")
call SaveUserMaps("n","","<space>","DrawIt")
call SaveUserMaps("n","","<home>","DrawIt")
call SaveUserMaps("n","","<end>","DrawIt")
call SaveUserMaps("n","","<pageup>","DrawIt")
call SaveUserMaps("n","","<pagedown>","DrawIt")
call SaveUserMaps("n","","<leftmouse>","DrawIt")
call SaveUserMaps("n","","<middlemouse>","DrawIt")
call SaveUserMaps("n","","<rightmouse>","DrawIt")
call SaveUserMaps("n","","<leftdrag>","DrawIt")
call SaveUserMaps("n","","<s-leftmouse>","DrawIt")
call SaveUserMaps("n","","<s-leftdrag>","DrawIt")
call SaveUserMaps("n","","<s-leftrelease>","DrawIt")
call SaveUserMaps("n","","<c-leftmouse>","DrawIt")
call SaveUserMaps("n","","<c-leftdrag>","DrawIt")
call SaveUserMaps("n","","<c-leftrelease>","DrawIt")
call SaveUserMaps("n",usermaplead,":pa","DrawIt")
call SaveUserMaps("n",usermaplead,":pb","DrawIt")
call SaveUserMaps("n",usermaplead,":pc","DrawIt")
call SaveUserMaps("n",usermaplead,":pd","DrawIt")
call SaveUserMaps("n",usermaplead,":pe","DrawIt")
call SaveUserMaps("n",usermaplead,":pf","DrawIt")
call SaveUserMaps("n",usermaplead,":pg","DrawIt")
call SaveUserMaps("n",usermaplead,":ph","DrawIt")
call SaveUserMaps("n",usermaplead,":pi","DrawIt")
call SaveUserMaps("n",usermaplead,":pj","DrawIt")
call SaveUserMaps("n",usermaplead,":pk","DrawIt")
call SaveUserMaps("n",usermaplead,":pl","DrawIt")
call SaveUserMaps("n",usermaplead,":pm","DrawIt")
call SaveUserMaps("n",usermaplead,":pn","DrawIt")
call SaveUserMaps("n",usermaplead,":po","DrawIt")
call SaveUserMaps("n",usermaplead,":pp","DrawIt")
call SaveUserMaps("n",usermaplead,":pq","DrawIt")
call SaveUserMaps("n",usermaplead,":pr","DrawIt")
call SaveUserMaps("n",usermaplead,":ps","DrawIt")
call SaveUserMaps("n",usermaplead,":pt","DrawIt")
call SaveUserMaps("n",usermaplead,":pu","DrawIt")
call SaveUserMaps("n",usermaplead,":pv","DrawIt")
call SaveUserMaps("n",usermaplead,":pw","DrawIt")
call SaveUserMaps("n",usermaplead,":px","DrawIt")
call SaveUserMaps("n",usermaplead,":py","DrawIt")
call SaveUserMaps("n",usermaplead,":pz","DrawIt")
call SaveUserMaps("n",usermaplead,":ra","DrawIt")
call SaveUserMaps("n",usermaplead,":rb","DrawIt")
call SaveUserMaps("n",usermaplead,":rc","DrawIt")
call SaveUserMaps("n",usermaplead,":rd","DrawIt")
call SaveUserMaps("n",usermaplead,":re","DrawIt")
call SaveUserMaps("n",usermaplead,":rf","DrawIt")
call SaveUserMaps("n",usermaplead,":rg","DrawIt")
call SaveUserMaps("n",usermaplead,":rh","DrawIt")
call SaveUserMaps("n",usermaplead,":ri","DrawIt")
call SaveUserMaps("n",usermaplead,":rj","DrawIt")
call SaveUserMaps("n",usermaplead,":rk","DrawIt")
call SaveUserMaps("n",usermaplead,":rl","DrawIt")
call SaveUserMaps("n",usermaplead,":rm","DrawIt")
call SaveUserMaps("n",usermaplead,":rn","DrawIt")
call SaveUserMaps("n",usermaplead,":ro","DrawIt")
call SaveUserMaps("n",usermaplead,":rp","DrawIt")
call SaveUserMaps("n",usermaplead,":rq","DrawIt")
call SaveUserMaps("n",usermaplead,":rr","DrawIt")
call SaveUserMaps("n",usermaplead,":rs","DrawIt")
call SaveUserMaps("n",usermaplead,":rt","DrawIt")
call SaveUserMaps("n",usermaplead,":ru","DrawIt")
call SaveUserMaps("n",usermaplead,":rv","DrawIt")
call SaveUserMaps("n",usermaplead,":rw","DrawIt")
call SaveUserMaps("n",usermaplead,":rx","DrawIt")
call SaveUserMaps("n",usermaplead,":ry","DrawIt")
call SaveUserMaps("n",usermaplead,":rz","DrawIt")
if exists("g:drawit_insertmode") && g:drawit_insertmode
call SaveUserMaps("i","","<left>","DrawIt")
call SaveUserMaps("i","","<right>","DrawIt")
call SaveUserMaps("i","","<up>","DrawIt")
call SaveUserMaps("i","","<down>","DrawIt")
call SaveUserMaps("i","","<left>","DrawIt")
call SaveUserMaps("i","","<s-right>","DrawIt")
call SaveUserMaps("i","","<s-up>","DrawIt")
call SaveUserMaps("i","","<s-down>","DrawIt")
call SaveUserMaps("i","","<home>","DrawIt")
call SaveUserMaps("i","","<end>","DrawIt")
call SaveUserMaps("i","","<pageup>","DrawIt")
call SaveUserMaps("i","","<pagedown>","DrawIt")
call SaveUserMaps("i","","<leftmouse>","DrawIt")
endif
call SaveUserMaps("n","",":\<c-v>","DrawIt")
" StartDrawIt: DrawIt maps (Charles Campbell) {{{3
nmap <silent> <left> :set lz<CR>:silent! call <SID>DrawLeft()<CR>:set nolz<CR>
nmap <silent> <right> :set lz<CR>:silent! call <SID>DrawRight()<CR>:set nolz<CR>
nmap <silent> <up> :set lz<CR>:silent! call <SID>DrawUp()<CR>:set nolz<CR>
nmap <silent> <down> :set lz<CR>:silent! call <SID>DrawDown()<CR>:set nolz<CR>
nmap <silent> <s-left> :set lz<CR>:silent! call <SID>MoveLeft()<CR>:set nolz<CR>
nmap <silent> <s-right> :set lz<CR>:silent! call <SID>MoveRight()<CR>:set nolz<CR>
nmap <silent> <s-up> :set lz<CR>:silent! call <SID>MoveUp()<CR>:set nolz<CR>
nmap <silent> <s-down> :set lz<CR>:silent! call <SID>MoveDown()<CR>:set nolz<CR>
nmap <silent> <space> :set lz<CR>:silent! call <SID>DrawErase()<CR>:set nolz<CR>
nmap <silent> > :set lz<CR>:silent! call <SID>DrawSpace('>',1)<CR>:set nolz<CR>
nmap <silent> < :set lz<CR>:silent! call <SID>DrawSpace('<',2)<CR>:set nolz<CR>
nmap <silent> ^ :set lz<CR>:silent! call <SID>DrawSpace('^',3)<CR>:set nolz<CR>
nmap <silent> v :set lz<CR>:silent! call <SID>DrawSpace('v',4)<CR>:set nolz<CR>
nmap <silent> <home> :set lz<CR>:silent! call <SID>DrawSlantUpLeft()<CR>:set nolz<CR>
nmap <silent> <end> :set lz<CR>:silent! call <SID>DrawSlantDownLeft()<CR>:set nolz<CR>
nmap <silent> <pageup> :set lz<CR>:silent! call <SID>DrawSlantUpRight()<CR>:set nolz<CR>
nmap <silent> <pagedown> :set lz<CR>:silent! call <SID>DrawSlantDownRight()<CR>:set nolz<CR>
nmap <silent> <Leader>> :set lz<CR>:silent! call <SID>DrawFatRArrow()<CR>:set nolz<CR>
nmap <silent> <Leader>< :set lz<CR>:silent! call <SID>DrawFatLArrow()<CR>:set nolz<CR>
nmap <silent> <Leader>^ :set lz<CR>:silent! call <SID>DrawFatUArrow()<CR>:set nolz<CR>
nmap <silent> <Leader>v :set lz<CR>:silent! call <SID>DrawFatDArrow()<CR>:set nolz<CR>
nmap <silent> <Leader>f :call <SID>Flood()<cr>
" StartDrawIt: Set up insertmode maps {{{3
if exists("g:drawit_insertmode") && g:drawit_insertmode
imap <buffer> <silent> <left> <Esc><left>a
imap <buffer> <silent> <right> <Esc><right>a
imap <buffer> <silent> <up> <Esc><up>a
imap <buffer> <silent> <down> <Esc><down>a
imap <buffer> <silent> <left> <Esc><left>a
imap <buffer> <silent> <s-right> <Esc><s-right>a
imap <buffer> <silent> <s-up> <Esc><s-up>a
imap <buffer> <silent> <s-down> <Esc><s-down>a
imap <buffer> <silent> <home> <Esc><home>a
imap <buffer> <silent> <end> <Esc><end>a
imap <buffer> <silent> <pageup> <Esc><pageup>a
imap <buffer> <silent> <pagedown> <Esc><pagedown>a
endif
" StartDrawIt: set up drawing mode mappings (Sylvain Viart) {{{3
nnoremap <buffer> <silent> <c-v> :call <SID>LeftStart()<CR><c-v>
vmap <buffer> <silent> <Leader>a :<c-u>call <SID>CallBox('Arrow')<CR>
vmap <buffer> <silent> <Leader>b :<c-u>call <SID>CallBox('DrawBox')<cr>
nmap <buffer> <Leader>c :call <SID>Canvas()<cr>
vmap <buffer> <silent> <Leader>l :<c-u>call <SID>CallBox('DrawPlainLine')<CR>
vmap <buffer> <silent> <Leader>s :<c-u>call <SID>Spacer(line("'<"), line("'>"),0)<cr>
" StartDrawIt: set up drawing mode mappings (Charles Campbell) {{{3
" \pa ... \pz : blanks are transparent
" \ra ... \rz : blanks copy over
vmap <buffer> <silent> <Leader>e :<c-u>call <SID>CallBox('DrawEllipse')<CR>
let allreg= "abcdefghijklmnopqrstuvwxyz"
while strlen(allreg) > 0
let ireg= strpart(allreg,0,1)
exe "nmap <buffer> <silent> <Leader>p".ireg.' :<c-u>set lz<cr>:silent! call <SID>PutBlock("'.ireg.'",0)<cr>:set nolz<cr>'
exe "nmap <buffer> <silent> <Leader>r".ireg.' :<c-u>set lz<cr>:silent! call <SID>PutBlock("'.ireg.'",1)<cr>:set nolz<cr>'
let allreg= strpart(allreg,1)
endwhile
" StartDrawIt: mouse maps (Sylvain Viart) {{{3
" start visual-block with leftmouse
nnoremap <buffer> <silent> <leftmouse> <leftmouse>:call <SID>LeftStart()<CR><c-v>
vnoremap <buffer> <silent> <rightmouse> <leftmouse>:<c-u>call <SID>RightStart(1)<cr>
vnoremap <buffer> <silent> <middlemouse> <leftmouse>:<c-u>call <SID>RightStart(0)<cr>
vnoremap <buffer> <silent> <c-leftmouse> <leftmouse>:<c-u>call <SID>CLeftStart()<cr>
" StartDrawIt: mouse maps (Charles Campbell) {{{3
" Draw with current brush
nnoremap <buffer> <silent> <s-leftmouse> <leftmouse>:call <SID>SLeftStart()<CR><c-v>
nnoremap <buffer> <silent> <c-leftmouse> <leftmouse>:call <SID>CLeftStart()<CR><c-v>
" StartDrawIt: Menu support {{{3
if has("gui_running") && has("menu") && &go =~ 'm'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Stop\ \ DrawIt<tab>\\ds <Leader>ds'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Toggle\ Erase\ Mode<tab><space> <space>'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Arrow<tab>\\a <Leader>a'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Box<tab>\\b <Leader>b'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Make\ Blank\ Zone<tab>\\c <Leader>c'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Ellipse<tab>\\e <Leader>e'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Flood<tab>\\e <Leader>f'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Line<tab>\\l <Leader>l'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Append\ Blanks<tab>\\s <Leader>s'
exe 'silent! unmenu '.g:DrChipTopLvlMenu.'DrawIt.Start\ DrawIt'
endif
" call Dret("StartDrawIt")
endfun
" ---------------------------------------------------------------------
" DrawIt#StopDrawIt: this function unmaps the cursor keys and restores settings {{{2
fun! DrawIt#StopDrawIt()
" call Dfunc("StopDrawIt()")
" StopDrawIt: report on [DrawIt off] mode {{{3
if !exists("b:dodrawit")
echo "[DrawIt off]"
" call Dret("StopDrawIt")
return
endif
" StopDrawIt: restore mouse {{{3
if exists("b:drawit_keep_mouse")
let &mouse= b:drawit_keep_mouse
unlet b:drawit_keep_mouse
endif
unlet b:dodrawit
echo "[DrawIt off]"
if exists("b:drawit_canvas_used")
" StopDrawIt: clean up trailing white space {{{3
call s:SavePosn()
silent! %s/\s\+$//e
unlet b:drawit_canvas_used
call s:RestorePosn()
endif
" StopDrawIt: remove drawit commands {{{3
delc SetBrush
" StopDrawIt: insure that erase mode is off {{{3
" (thanks go to Gary Johnson for this)
if b:di_erase == 1
call s:DrawErase()
endif
" StopDrawIt: restore user map(s), if any {{{3
call RestoreUserMaps("DrawIt")
" StopDrawIt: restore user's options {{{3
let &ai = b:di_aikeep
let &cin = b:di_cinkeep
let &cpo = b:di_cpokeep
let &et = b:di_etkeep
let &fo = b:di_fokeep
let &gd = b:di_gdkeep
let &go = b:di_gokeep
let &magic = b:di_magickeep
let &remap = b:di_remapkeep
let &report = b:di_repkeep
let &si = b:di_sikeep
let &sta = b:di_stakeep
let &ve = b:di_vekeep
unlet b:di_aikeep
unlet b:di_cinkeep
unlet b:di_cpokeep
unlet b:di_etkeep
unlet b:di_fokeep
unlet b:di_gdkeep
unlet b:di_gokeep
unlet b:di_magickeep
unlet b:di_remapkeep
unlet b:di_repkeep
unlet b:di_sikeep
unlet b:di_stakeep
unlet b:di_vekeep
" StopDrawIt: DrChip menu support: {{{3
if has("gui_running") && has("menu") && &go =~ 'm'
exe 'menu '.g:DrChipTopLvlMenu.'DrawIt.Start\ DrawIt<tab>\\di <Leader>di'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Stop\ \ DrawIt'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Toggle\ Erase\ Mode'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Arrow'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Box'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Ellipse'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Flood'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Draw\ Line'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Make\ Blank\ Zone'
exe 'unmenu '.g:DrChipTopLvlMenu.'DrawIt.Append\ Blanks'
endif
" call Dret("StopDrawIt")
endfun
" ---------------------------------------------------------------------
" SetDrawIt: this function allows one to change the drawing characters {{{2
fun! SetDrawIt(di_vert,di_horiz,di_plus,di_upleft,di_upright,di_cross,di_ellipse)
" call Dfunc("SetDrawIt(vert<".a:di_vert."> horiz<".a:di_horiz."> plus<".a:di_plus."> upleft<".a:di_upleft."> upright<".a:di_upright."> cross<".a:di_cross."> ellipse<".a:di_ellipse.">)")
let b:di_vert = a:di_vert
let b:di_horiz = a:di_horiz
let b:di_plus = a:di_plus
let b:di_upleft = a:di_upleft
let b:di_upright = a:di_upright
let b:di_cross = a:di_cross
let b:di_ellipse = a:di_ellipse
" call Dret("SetDrawIt")
endfun
" =====================================================================
" s:DrawLeft: {{{2
fun! s:DrawLeft()
" call Dfunc("s:DrawLeft()")
let curline = getline(".")
let curcol = virtcol(".")
let b:lastdir = 2
if curcol > 0
let curchar= strpart(curline,curcol-1,1)
" replace
if curchar == b:di_vert || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_horiz
endif
" move and replace
if curcol >= 2
call s:MoveLeft()
let curchar= strpart(curline,curcol-2,1)
if curchar == b:di_vert || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_horiz
endif
endif
endif
" call Dret("s:DrawLeft")
endfun
" ---------------------------------------------------------------------
" s:DrawRight: {{{2
fun! s:DrawRight()
" call Dfunc("s:DrawRight()")
let curline = getline(".")
let curcol = virtcol(".")
let b:lastdir = 1
" replace
if curcol == virtcol("$")
exe "norm! a".b:di_horiz."\<Esc>"
else
let curchar= strpart(curline,curcol-1,1)
if curchar == b:di_vert || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_horiz
endif
endif
" move and replace
call s:MoveRight()
if curcol == virtcol("$")
exe "norm! i".b:di_horiz."\<Esc>"
else
let curchar= strpart(curline,curcol,1)
if curchar == b:di_vert || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_horiz
endif
endif
" call Dret("s:DrawRight")
endfun
" ---------------------------------------------------------------------
" s:DrawUp: {{{2
fun! s:DrawUp()
" call Dfunc("s:DrawUp()")
let curline = getline(".")
let curcol = virtcol(".")
let b:lastdir = 3
" replace
if curcol == 1 && virtcol("$") == 1
exe "norm! i".b:di_vert."\<Esc>"
else
let curchar= strpart(curline,curcol-1,1)
if curchar == b:di_horiz || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_vert
endif
endif
" move and replace/insert
call s:MoveUp()
let curline= getline(".")
let curchar= strpart(curline,curcol-1,1)
if curcol == 1 && virtcol("$") == 1
exe "norm! i".b:di_vert."\<Esc>"
elseif curchar == b:di_horiz || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_vert
endif
endif
" call Dret("s:DrawUp")
endfun
" ---------------------------------------------------------------------
" s:DrawDown: {{{2
fun! s:DrawDown()
" call Dfunc("s:DrawDown()")
let curline = getline(".")
let curcol = virtcol(".")
let b:lastdir = 4
" replace
if curcol == 1 && virtcol("$") == 1
exe "norm! i".b:di_vert."\<Esc>"
else
let curchar= strpart(curline,curcol-1,1)
if curchar == b:di_horiz || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_vert
endif
endif
" move and replace/insert
call s:MoveDown()
let curline= getline(".")
let curchar= strpart(curline,curcol-1,1)
if curcol == 1 && virtcol("$") == 1
exe "norm! i".b:di_vert."\<Esc>"
elseif curchar == b:di_horiz || curchar == b:di_plus
exe "norm! r".b:di_plus
else
exe "norm! r".b:di_vert
endif
" call Dret("s:DrawDown")
endfun
" ---------------------------------------------------------------------
" s:DrawErase: toggle [DrawIt on] and [DrawIt erase] modes {{{2
fun! s:DrawErase()
" call Dfunc("s:DrawErase() b:di_erase=".b:di_erase)
if b:di_erase == 0
let b:di_erase= 1
echo "[DrawIt erase]"
let b:di_vert_save = b:di_vert
let b:di_horiz_save = b:di_horiz
let b:di_plus_save = b:di_plus
let b:di_upright_save = b:di_upright
let b:di_upleft_save = b:di_upleft
let b:di_cross_save = b:di_cross
let b:di_ellipse_save = b:di_ellipse
call SetDrawIt(' ',' ',' ',' ',' ',' ',' ')
else
let b:di_erase= 0
echo "[DrawIt]"
call SetDrawIt(b:di_vert_save,b:di_horiz_save,b:di_plus_save,b:di_upleft_save,b:di_upright_save,b:di_cross_save,b:di_ellipse_save)
endif
" call Dret("s:DrawErase")
endfun
" ---------------------------------------------------------------------
" s:DrawSpace: clear character and move right {{{2
fun! s:DrawSpace(chr,dir)
" call Dfunc("s:DrawSpace(chr<".a:chr."> dir<".a:dir.">)")
let curcol= virtcol(".")
" replace current location with arrowhead/space
if curcol == virtcol("$")-1
exe "norm! r".a:chr
else
exe "norm! r".a:chr
endif
if a:dir == 0
let dir= b:lastdir
else
let dir= a:dir
endif
" perform specified move
if dir == 1
call s:MoveRight()
elseif dir == 2
call s:MoveLeft()
elseif dir == 3
call s:MoveUp()
else
call s:MoveDown()
endif
" call Dret("s:DrawSpace")
endfun
" ---------------------------------------------------------------------
" s:DrawSlantDownLeft: / {{{2
fun! s:DrawSlantDownLeft()
" call Dfunc("s:DrawSlantDownLeft()")
call s:ReplaceDownLeft() " replace
call s:MoveDown() " move
call s:MoveLeft() " move
call s:ReplaceDownLeft() " replace
" call Dret("s:DrawSlantDownLeft")
endfun
" ---------------------------------------------------------------------
" s:DrawSlantDownRight: \ {{{2
fun! s:DrawSlantDownRight()
" call Dfunc("s:DrawSlantDownRight()")
call s:ReplaceDownRight() " replace
call s:MoveDown() " move
call s:MoveRight() " move
call s:ReplaceDownRight() " replace
" call Dret("s:DrawSlantDownRight")
endfun
" ---------------------------------------------------------------------
" s:DrawSlantUpLeft: \ {{{2
fun! s:DrawSlantUpLeft()
" call Dfunc("s:DrawSlantUpLeft()")
call s:ReplaceDownRight() " replace
call s:MoveUp() " move
call s:MoveLeft() " move
call s:ReplaceDownRight() " replace
" call Dret("s:DrawSlantUpLeft")
endfun
" ---------------------------------------------------------------------
" s:DrawSlantUpRight: / {{{2
fun! s:DrawSlantUpRight()
" call Dfunc("s:DrawSlantUpRight()")
call s:ReplaceDownLeft() " replace
call s:MoveUp() " move
call s:MoveRight() " replace
call s:ReplaceDownLeft() " replace
" call Dret("s:DrawSlantUpRight")
endfun
" ---------------------------------------------------------------------
" s:MoveLeft: {{{2
fun! s:MoveLeft()
" call Dfunc("s:MoveLeft()")
norm! h
let b:lastdir= 2
" call Dret("s:MoveLeft : b:lastdir=".b:lastdir)
endfun
" ---------------------------------------------------------------------
" s:MoveRight: {{{2
fun! s:MoveRight()
" call Dfunc("s:MoveRight()")
if virtcol(".") >= virtcol("$") - 1
exe "norm! A \<Esc>"
else
norm! l
endif
let b:lastdir= 1
" call Dret("s:MoveRight : b:lastdir=".b:lastdir)
endfun
" ---------------------------------------------------------------------
" s:MoveUp: {{{2
fun! s:MoveUp()
" call Dfunc("s:MoveUp()")
if line(".") == 1
let curcol= virtcol(".") - 1
if curcol == 0 && virtcol("$") == 1
exe "norm! i \<Esc>"
elseif curcol == 0
exe "norm! YP:s/./ /ge\<CR>0r "
else
exe "norm! YP:s/./ /ge\<CR>0".curcol."lr "
endif
else
let curcol= virtcol(".")
norm! k
while virtcol("$") <= curcol
exe "norm! A \<Esc>"
endwhile
endif
let b:lastdir= 3
" call Dret("s:MoveUp : b:lastdir=".b:lastdir)
endfun
" ---------------------------------------------------------------------
" s:MoveDown: {{{2
fun! s:MoveDown()
" call Dfunc("s:MoveDown()")
if line(".") == line("$")
let curcol= virtcol(".") - 1
if curcol == 0 && virtcol("$") == 1
exe "norm! i \<Esc>"
elseif curcol == 0
exe "norm! Yp:s/./ /ge\<CR>0r "
else
exe "norm! Yp:s/./ /ge\<CR>0".curcol."lr "
endif
else
let curcol= virtcol(".")
norm! j
while virtcol("$") <= curcol
exe "norm! A \<Esc>"
endwhile
endif
let b:lastdir= 4
" call Dret("s:MoveDown : b:lastdir=".b:lastdir)
endfun
" ---------------------------------------------------------------------
" s:ReplaceDownLeft: / X (upright) {{{2
fun! s:ReplaceDownLeft()
" call Dfunc("s:ReplaceDownLeft()")
let curcol = virtcol(".")
if curcol != virtcol("$")
let curchar= strpart(getline("."),curcol-1,1)
if curchar == "\\" || curchar == "X"
exe "norm! r".b:di_cross
else
exe "norm! r".b:di_upright
endif
else
exe "norm! i".b:di_upright."\<Esc>"
endif
" call Dret("s:ReplaceDownLeft")
endfun
" ---------------------------------------------------------------------
" s:ReplaceDownRight: \ X (upleft) {{{2
fun! s:ReplaceDownRight()
" call Dfunc("s:ReplaceDownRight()")
let curcol = virtcol(".")
if curcol != virtcol("$")
let curchar= strpart(getline("."),curcol-1,1)
if curchar == "/" || curchar == "X"
exe "norm! r".b:di_cross
else
exe "norm! r".b:di_upleft
endif
else
exe "norm! i".b:di_upleft."\<Esc>"
endif
" call Dret("s:ReplaceDownRight")
endfun
" ---------------------------------------------------------------------
" s:DrawFatRArrow: ----|> {{{2
fun! s:DrawFatRArrow()
" call Dfunc("s:DrawFatRArrow()")
call s:MoveRight()
norm! r|
call s:MoveRight()
norm! r>
" call Dret("s:DrawFatRArrow")
endfun
" ---------------------------------------------------------------------
" s:DrawFatLArrow: <|---- {{{2
fun! s:DrawFatLArrow()
" call Dfunc("s:DrawFatLArrow()")
call s:MoveLeft()
norm! r|
call s:MoveLeft()
norm! r<
" call Dret("s:DrawFatLArrow")
endfun
" ---------------------------------------------------------------------
" .
" s:DrawFatUArrow: /_\ {{{2
" |
fun! s:DrawFatUArrow()
" call Dfunc("s:DrawFatUArrow()")
call s:MoveUp()
norm! r_
call s:MoveRight()
norm! r\
call s:MoveLeft()
call s:MoveLeft()
norm! r/
call s:MoveRight()
call s:MoveUp()
norm! r.
" call Dret("s:DrawFatUArrow")
endfun
" ---------------------------------------------------------------------
" s:DrawFatDArrow: _|_ {{{2
" \ /
" '
fun! s:DrawFatDArrow()
" call Dfunc("s:DrawFatDArrow()")
call s:MoveRight()
norm! r_
call s:MoveLeft()
call s:MoveLeft()
norm! r_
call s:MoveDown()
norm! r\
call s:MoveRight()
call s:MoveRight()
norm! r/
call s:MoveDown()
call s:MoveLeft()
norm! r'
" call Dret("s:DrawFatDArrow")
endfun
" ---------------------------------------------------------------------
" s:DrawEllipse: Bresenham-like ellipse drawing algorithm {{{2
" 2 2 can
" x y be 2 2 2 2 2 2
" - + - = 1 rewritten b x + a y = a b
" a b as
"
" Take step which has minimum error
" (x,y-1) (x+1,y) (x+1,y-1)
"
" 2 2 2 2 2 2
" Ei = | b x + a y - a b |
"
" Algorithm only draws arc from (0,b) to (a,0) and uses
" DrawFour() to reflect points to other three quadrants
fun! s:DrawEllipse(x0,y0,x1,y1)
" call Dfunc("s:DrawEllipse(x0=".a:x0." y0=".a:y0." x1=".a:x1." y1=".a:y1.")")
let x0 = a:x0
let y0 = a:y0
let x1 = a:x1
let y1 = a:y1
let xoff = (x0+x1)/2
let yoff = (y0+y1)/2
let a = s:Abs(x1-x0)/2
let b = s:Abs(y1-y0)/2
let a2 = a*a
let b2 = b*b
let twoa2= a2 + a2
let twob2= b2 + b2
let xi= 0
let yi= b
let ei= 0
call s:DrawFour(xi,yi,xoff,yoff,a,b)
while xi <= a && yi >= 0
let dy= a2 - twoa2*yi
let ca= ei + twob2*xi + b2
let cb= ca + dy
let cc= ei + dy
let aca= s:Abs(ca)
let acb= s:Abs(cb)
let acc= s:Abs(cc)
" pick case: (xi+1,yi) (xi,yi-1) (xi+1,yi-1)
if aca <= acb && aca <= acc
let xi= xi + 1
let ei= ca
elseif acb <= aca && acb <= acc
let ei= cb
let xi= xi + 1
let yi= yi - 1
else
let ei= cc
let yi= yi - 1
endif
if xi > a:x1
break
endif
call s:DrawFour(xi,yi,xoff,yoff,a,b)
endw
" call Dret("s:DrawEllipse")
endf
" ---------------------------------------------------------------------
" s:DrawFour: reflect a point to four quadrants {{{2
fun! s:DrawFour(x,y,xoff,yoff,a,b)
" call Dfunc("s:DrawFour(xy[".a:x.",".a:y."] off[".a:xoff.",".a:yoff."] a=".a:a." b=".a:b.")")
let x = a:xoff + a:x
let y = a:yoff + a:y
let lx = a:xoff - a:x
let by = a:yoff - a:y
call s:SetCharAt(b:di_ellipse, x, y)
call s:SetCharAt(b:di_ellipse, lx, y)
call s:SetCharAt(b:di_ellipse, lx,by)
call s:SetCharAt(b:di_ellipse, x,by)
" call Dret("s:DrawFour")
endf
" ---------------------------------------------------------------------
" s:SavePosn: saves position of cursor on screen so NetWrite can restore it {{{2
fun! s:SavePosn()
" call Dfunc("s:SavePosn() saveposn_count=".s:saveposn_count.' ['.line('.').','.virtcol('.').']')
let s:saveposn_count= s:saveposn_count + 1
" Save current line and column
let b:drawit_line_{s:saveposn_count} = line(".")
let b:drawit_col_{s:saveposn_count} = virtcol(".") - 1
" Save top-of-screen line
norm! H
let b:drawit_hline_{s:saveposn_count}= line(".")
" restore position
exe "norm! ".b:drawit_hline_{s:saveposn_count}."G0z\<CR>"
if b:drawit_col_{s:saveposn_count} == 0
exe "norm! ".b:drawit_line_{s:saveposn_count}."G0"
else
exe "norm! ".b:drawit_line_{s:saveposn_count}."G0".b:drawit_col_{s:saveposn_count}."l"
endif
" call Dret("s:SavePosn : saveposn_count=".s:saveposn_count)
endfun
" ------------------------------------------------------------------------
" s:RestorePosn: {{{2
fun! s:RestorePosn()
" call Dfunc("s:RestorePosn() saveposn_count=".s:saveposn_count)
if s:saveposn_count <= 0
" call Dret("s:RestorePosn : s:saveposn_count<=0")
return
endif
" restore top-of-screen line
exe "norm! ".b:drawit_hline_{s:saveposn_count}."G0z\<CR>"
" restore position
if b:drawit_col_{s:saveposn_count} == 0
exe "norm! ".b:drawit_line_{s:saveposn_count}."G0"
else
exe "norm! ".b:drawit_line_{s:saveposn_count}."G0".b:drawit_col_{s:saveposn_count}."l"
endif
if s:saveposn_count > 0
unlet b:drawit_hline_{s:saveposn_count}
unlet b:drawit_line_{s:saveposn_count}
unlet b:drawit_col_{s:saveposn_count}
let s:saveposn_count= s:saveposn_count - 1
endif
" call Dret("s:RestorePosn : saveposn_count=".s:saveposn_count)
endfun
" ------------------------------------------------------------------------
" s:Flood: this function begins a flood of a region {{{2
" based on b:di... characters as boundaries
" and starting at the current cursor location.
fun! s:Flood()
" call Dfunc("s:Flood()")
let s:bndry = b:di_vert.b:di_horiz.b:di_plus.b:di_upright.b:di_upleft.b:di_cross.b:di_ellipse
let row = line(".")
let col = virtcol(".")
let athold = @0
let s:DIrows = line("$")
call s:SavePosn()
" get fill character from user
" Put entire fillchar string into the s:bndry (boundary characters),
" although only use the first such character for filling
call inputsave()
let s:fillchar= input("Enter fill character: ")
call inputrestore()
let s:bndry= "[".escape(s:bndry.s:fillchar,'\-]^')."]"
if strlen(s:fillchar) > 1
let s:fillchar= strpart(s:fillchar,0,1)
endif
" flood the region
call s:DI_Flood(row,col)
" restore
call s:RestorePosn()
let @0= athold
unlet s:DIrows s:bndry s:fillchar
" call Dret("s:Flood")
endfun
" ------------------------------------------------------------------------
" s:DI_Flood: fill up to the boundaries all characters to the left and right. {{{2
" Then, based on the left/right column extents reached, check
" adjacent rows to see if any characters there need filling.
fun! s:DI_Flood(frow,fcol)
" call Dfunc("s:DI_Flood(frow=".a:frow." fcol=".a:fcol.")")
if a:frow <= 0 || a:fcol <= 0 || s:SetPosn(a:frow,a:fcol) || s:IsBoundary(a:frow,a:fcol)
" call Dret("s:DI_Flood")
return
endif
" fill current line
let colL= s:DI_FillLeft(a:frow,a:fcol)
let colR= s:DI_FillRight(a:frow,a:fcol+1)
" do a filladjacent on the next line up
if a:frow > 1
call s:DI_FillAdjacent(a:frow-1,colL,colR)
endif
" do a filladjacent on the next line down
if a:frow < s:DIrows
call s:DI_FillAdjacent(a:frow+1,colL,colR)
endif
" call Dret("s:DI_Flood")
endfun
" ------------------------------------------------------------------------
" s:DI_FillLeft: Starting at (frow,fcol), non-boundary locations are {{{2
" filled with the fillchar. The leftmost extent reached
" is returned.
fun! s:DI_FillLeft(frow,fcol)
" call Dfunc("s:DI_FillLeft(frow=".a:frow." fcol=".a:fcol.")")
if s:SetPosn(a:frow,a:fcol)
" call Dret("s:DI_FillLeft ".a:fcol)
return a:fcol
endif
let Lcol= a:fcol
while Lcol >= 1
if !s:IsBoundary(a:frow,Lcol)
exe "silent! norm! r".s:fillchar."h"
else
break
endif
let Lcol= Lcol - 1
endwhile
let Lcol= (Lcol < 1)? 1 : Lcol + 1
" call Dret("s:DI_FillLeft ".Lcol)
return Lcol
endfun
" ---------------------------------------------------------------------
" s:DI_FillRight: Starting at (frow,fcol), non-boundary locations are {{{2
" filled with the fillchar. The rightmost extent reached
" is returned.
fun! s:DI_FillRight(frow,fcol)
" call Dfunc("s:DI_FillRight(frow=".a:frow." fcol=".a:fcol.")")
if s:SetPosn(a:frow,a:fcol)
" call Dret("s:DI_FillRight ".a:fcol)
return a:fcol
endif
let Rcol = a:fcol
while Rcol <= virtcol("$")
if !s:IsBoundary(a:frow,Rcol)
exe "silent! norm! r".s:fillchar."l"
else
break
endif
let Rcol= Rcol + 1
endwhile
let DIcols = virtcol("$")
let Rcol = (Rcol > DIcols)? DIcols : Rcol - 1
" call Dret("s:DI_FillRight ".Rcol)
return Rcol
endfun
" ---------------------------------------------------------------------
" s:DI_FillAdjacent: {{{2
" DI_Flood does FillLeft and FillRight, so the run from left to right
" (fcolL to fcolR) is known to have been filled. FillAdjacent is called
" from (fcolL to fcolR) on the lines one row up and down; if any character
" on the run is not a boundary character, then a flood is needed on that
" location.
fun! s:DI_FillAdjacent(frow,fcolL,fcolR)
" call Dfunc("s:DI_FillAdjacent(frow=".a:frow." fcolL=".a:fcolL." fcolR=".a:fcolR.")")
let icol = a:fcolL
while icol <= a:fcolR
if !s:IsBoundary(a:frow,icol)
call s:DI_Flood(a:frow,icol)
endif
let icol= icol + 1
endwhile
" call Dret("s:DI_FillAdjacent")
endfun
" ---------------------------------------------------------------------
" s:SetPosn: set cursor to given position on screen {{{2
" srow,scol: -s-creen row and column
" Returns 1 : failed sanity check
" 0 : otherwise
fun! s:SetPosn(row,col)
" call Dfunc("s:SetPosn(row=".a:row." col=".a:col.")")
" sanity checks
if a:row < 1
" call Dret("s:SetPosn 1")
return 1
endif
if a:col < 1
" call Dret("s:SetPosn 1")
return 1
endif
exe "norm! ".a:row."G".a:col."\<Bar>"
" call Dret("s:SetPosn 0")
return 0
endfun
" ---------------------------------------------------------------------
" s:IsBoundary: returns 0 if not on boundary, 1 if on boundary {{{2
" The "boundary" also includes the fill character.
fun! s:IsBoundary(row,col)
" call Dfunc("s:IsBoundary(row=".a:row." col=".a:col.")")
let orow= line(".")
let ocol= virtcol(".")
exe "norm! ".a:row."G".a:col."\<Bar>"
norm! vy
let ret= @0 =~ s:bndry
if a:row != orow || a:col != ocol
exe "norm! ".orow."G".ocol."\<Bar>"
endif
" call Dret("s:IsBoundary ".ret." : @0<".@0.">")
return ret
endfun
" ---------------------------------------------------------------------
" s:PutBlock: puts a register's contents into the text at the current {{{2
" cursor location
" replace= 0: Blanks are transparent
" = 1: Blanks copy over
" = 2: Erase all drawing characters
"
fun! s:PutBlock(block,replace)
" call Dfunc("s:PutBlock(block<".a:block."> replace=".a:replace.")")
call s:SavePosn()
exe "let block = @".a:block
let blocklen = strlen(block)
let drawit_line = line('.')
let drawchars = '['.escape(b:di_vert.b:di_horiz.b:di_plus.b:di_upright.b:di_upleft.b:di_cross,'\-').']'
" insure that putting a block will do so in a region containing spaces out to textwidth
exe "let blockrows= strlen(substitute(@".a:block.",'[^[:cntrl:]]','','g'))"
exe 'let blockcols= strlen(substitute(@'.a:block.",'^\\(.\\{-}\\)\\n\\_.*$','\\1',''))"
let curline= line('.')
let curcol = virtcol('.')
" call Decho("blockrows=".blockrows." blockcols=".blockcols." curline=".curline." curcol=".curcol)
call s:AutoCanvas(curline-1,curline + blockrows+1,curcol + blockcols)
let iblock = 0
while iblock < blocklen
let chr= strpart(block,iblock,1)
if char2nr(chr) == 10
" handle newline
let drawit_line= drawit_line + 1
if b:drawit_col_{s:saveposn_count} == 0
exe "norm! ".drawit_line."G0"
else
exe "norm! ".drawit_line."G0".b:drawit_col_{s:saveposn_count}."l"
endif
elseif a:replace == 2
" replace all drawing characters with blanks
if match(chr,drawchars) != -1
norm! r l
else
norm! l
endif
elseif chr == ' ' && a:replace == 0
" allow blanks to be transparent
norm! l
else
" usual replace character
exe "norm! r".chr."l"
endif
let iblock = iblock + 1
endwhile
call s:RestorePosn()
" call Dret("s:PutBlock")
endfun
" ---------------------------------------------------------------------
" s:AutoCanvas: automatic "Canvas" routine {{{2
fun! s:AutoCanvas(linestart,linestop,cols)
" call Dfunc("s:AutoCanvas(linestart=".a:linestart." linestop=".a:linestop." cols=".a:cols.") line($)=".line("$"))
" insure there's enough blank lines at end-of-file
if line("$") < a:linestop
" call Decho("append ".(a:linestop - line("$"))." empty lines")
call s:SavePosn()
exe "norm! G".(a:linestop - line("$"))."o\<esc>"
call s:RestorePosn()
endif
" insure that any tabs contained within the selected region are converted to blanks
let etkeep= &et
set et
" call Decho("exe ".a:linestart.",".a:linestop."retab")
exe a:linestart.",".a:linestop."retab"
let &et= etkeep
" insure that there's whitespace to textwidth/screenwidth/a:cols
if a:cols <= 0
let tw= &tw
if tw <= 0
let tw= &columns
endif
else
let tw= a:cols
endif
" Decho("tw=".tw)
if search('^$\|.\%<'.(tw+1).'v$',"cn",(a:linestop+1)) > 0
" call Decho("append trailing whitespace")
call s:Spacer(a:linestart,a:linestop,tw)
endif
" call Dret("s:AutoCanvas : tw=".tw)
endfun
" =====================================================================
" DrawIt Functions: (by Sylvain Viart) {{{1
" =====================================================================
" ---------------------------------------------------------------------
" s:Canvas: {{{2
fun! s:Canvas()
" call Dfunc("s:Canvas()")
let lines = input("how many lines under the cursor? ")
let curline= line('.')
if curline < line('$')
exe "norm! ".lines."o\<esc>"
endif
call s:Spacer(curline+1,curline+lines,0)
let b:drawit_canvas_used= 1
" call Dret("s:Canvas")
endf
" ---------------------------------------------------------------------
" s:Spacer: fill end of line with space {{{2
" if a:cols >0: to the virtual column specified by a:cols
" <=0: to textwidth (if nonzero), otherwise
" to display width (&columns)
fun! s:Spacer(debut, fin, cols) range
" call Dfunc("s:Spacer(debut=".a:debut." fin=".a:fin." cols=".a:cols.")")
call s:SavePosn()
if a:cols <= 0
let width = &textwidth
if width <= 0
let width= &columns
endif
else
let width= a:cols
endif
let l= a:debut
while l <= a:fin
call setline(l,printf('%-'.width.'s',getline(l)))
let l = l + 1
endwhile
call s:RestorePosn()
" call Dret("s:Spacer")
endf
" ---------------------------------------------------------------------
" s:CallBox: call the specified function using the current visual selection box {{{2
fun! s:CallBox(func_name)
" call Dfunc("s:CallBox(func_name<".a:func_name.">)")
let xdep = b:xmouse_start
let ydep = b:ymouse_start
let col0 = virtcol("'<")
let row0 = line("'<")
let col1 = virtcol("'>")
let row1 = line("'>")
" call Decho("TL corner[".row0.",".col0."] original")
" call Decho("BR corner[".row1.",".col1."] original")
" call Decho("xydep [".ydep.",".xdep."]")
if col1 == xdep && row1 == ydep
let col1 = col0
let row1 = row0
let col0 = xdep
let row0 = ydep
endif
" call Decho("TL corner[".row0.",".col0."]")
" call Decho("BR corner[".row1.",".col1."]")
" insure that the selected region has blanks to that specified by col1
call s:AutoCanvas((row0 < row1)? row0 : row1,(row1 > row0)? row1 : row0,(col1 > col0)? col1 : col0)
" call Decho("exe call s:".a:func_name."(".col0.','.row0.','.col1.','.row1.")")
exe "call s:".a:func_name."(".col0.','.row0.','.col1.','.row1.")"
let b:xmouse_start= 0
let b:ymouse_start= 0
" call Dret("s:CallBox")
endf
" ---------------------------------------------------------------------
" s:DrawBox: {{{2
fun! s:DrawBox(x0, y0, x1, y1)
" call Dfunc("s:DrawBox(xy0[".a:x0.",".a:y0." xy1[".a:x1.",".a:y1."])")
" loop each line
let l = a:y0
while l <= a:y1
let c = a:x0
while c <= a:x1
if l == a:y0 || l == a:y1
let remp = '-'
if c == a:x0 || c == a:x1
let remp = '+'
endif
else
let remp = '|'
if c != a:x0 && c != a:x1
let remp = '.'
endif
endif
if remp != '.'
call s:SetCharAt(remp, c, l)
endif
let c = c + 1
endw
let l = l + 1
endw
" call Dret("s:DrawBox")
endf
" ---------------------------------------------------------------------
" s:SetCharAt: set the character at the specified position (must exist) {{{2
fun! s:SetCharAt(char, x, y)
" call Dfunc("s:SetCharAt(char<".a:char."> xy[".a:x.",".a:y."])")
let content = getline(a:y)
let long = strlen(content)
let deb = strpart(content, 0, a:x - 1)
let fin = strpart(content, a:x, long)
call setline(a:y, deb.a:char.fin)
" call Dret("s:SetCharAt")
endf
" ---------------------------------------------------------------------
" s:DrawLine: Bresenham line-drawing algorithm {{{2
" taken from :
" http://www.graphics.lcs.mit.edu/~mcmillan/comp136/Lecture6/Lines.html
fun! s:DrawLine(x0, y0, x1, y1, horiz)
" call Dfunc("s:DrawLine(xy0[".a:x0.",".a:y0."] xy1[".a:x1.",".a:y1."] horiz=".a:horiz.")")
if ( a:x0 < a:x1 && a:y0 > a:y1 ) || ( a:x0 > a:x1 && a:y0 > a:y1 )
" swap direction
let x0 = a:x1
let y0 = a:y1
let x1 = a:x0
let y1 = a:y0
else
let x0 = a:x0
let y0 = a:y0
let x1 = a:x1
let y1 = a:y1
endif
let dy = y1 - y0
let dx = x1 - x0
if dy < 0
let dy = -dy
let stepy = -1
else
let stepy = 1
endif
if dx < 0
let dx = -dx
let stepx = -1
else
let stepx = 1
endif
let dy = 2*dy
let dx = 2*dx
if dx > dy
" move under x
let char = a:horiz
call s:SetCharAt(char, x0, y0)
let fraction = dy - (dx / 2) " same as 2*dy - dx
while x0 != x1
let char = a:horiz
if fraction >= 0
if stepx > 0
let char = '\'
else
let char = '/'
endif
let y0 = y0 + stepy
let fraction = fraction - dx " same as fraction -= 2*dx
endif
let x0 = x0 + stepx
let fraction = fraction + dy " same as fraction = fraction - 2*dy
call s:SetCharAt(char, x0, y0)
endw
else
" move under y
let char = '|'
call s:SetCharAt(char, x0, y0)
let fraction = dx - (dy / 2)
while y0 != y1
let char = '|'
if fraction >= 0
if stepy > 0 || stepx < 0
let char = '\'
else
let char = '/'
endif
let x0 = x0 + stepx
let fraction = fraction - dy
endif
let y0 = y0 + stepy
let fraction = fraction + dx
call s:SetCharAt(char, x0, y0)
endw
endif
" call Dret("s:DrawLine")
endf
" ---------------------------------------------------------------------
" s:Arrow: {{{2
fun! s:Arrow(x0, y0, x1, y1)
" call Dfunc("s:Arrow(xy0[".a:x0.",".a:y0."] xy1[".a:x1.",".a:y1."])")
call s:DrawLine(a:x0, a:y0, a:x1, a:y1,'-')
let dy = a:y1 - a:y0
let dx = a:x1 - a:x0
if s:Abs(dx) > <SID>Abs(dy)
" move x
if dx > 0
call s:SetCharAt('>', a:x1, a:y1)
else
call s:SetCharAt('<', a:x1, a:y1)
endif
else
" move y
if dy > 0
call s:SetCharAt('v', a:x1, a:y1)
else
call s:SetCharAt('^', a:x1, a:y1)
endif
endif
" call Dret("s:Arrow")
endf
" ---------------------------------------------------------------------
" s:Abs: return absolute value {{{2
fun! s:Abs(val)
if a:val < 0
return - a:val
else
return a:val
endif
endf
" ---------------------------------------------------------------------
" s:DrawPlainLine: {{{2
fun! s:DrawPlainLine(x0,y0,x1,y1)
" call Dfunc("s:DrawPlainLine(xy0[".a:x0.",".a:y0."] xy1[".a:x1.",".a:y1."])")
" call Decho("exe call s:DrawLine(".a:x0.','.a:y0.','.a:x1.','.a:y1.',"_")')
exe "call s:DrawLine(".a:x0.','.a:y0.','.a:x1.','.a:y1.',"_")'
" call Dret("s:DrawPlainLine")
endf
" =====================================================================
" Mouse Functions: {{{1
" =====================================================================
" ---------------------------------------------------------------------
" s:LeftStart: Read visual drag mapping {{{2
" The visual start point is saved in b:xmouse_start and b:ymouse_start
fun! s:LeftStart()
" call Dfunc("s:LeftStart()")
let b:xmouse_start = virtcol('.')
let b:ymouse_start = line('.')
vnoremap <silent> <leftrelease> <leftrelease>:<c-u>call <SID>LeftRelease()<cr>gv
" call Dret("s:LeftStart : [".b:ymouse_start.",".b:xmouse_start."]")
endf!
" ---------------------------------------------------------------------
" s:LeftRelease: {{{2
fun! s:LeftRelease()
" call Dfunc("s:LeftRelease()")
vunmap <leftrelease>
" call Dret("s:LeftRelease : [".line('.').','.virtcol('.').']')
endf
" ---------------------------------------------------------------------
" s:SLeftStart: begin drawing with a brush {{{2
fun! s:SLeftStart()
if !exists("b:drawit_brush")
let b:drawit_brush= "a"
endif
" call Dfunc("s:SLeftStart() brush=".b:drawit_brush.' ['.line('.').','.virtcol('.').']')
noremap <silent> <s-leftdrag> <leftmouse>:<c-u>call <SID>SLeftDrag()<cr>
noremap <silent> <s-leftrelease> <leftmouse>:<c-u>call <SID>SLeftRelease()<cr>
" call Dret("s:SLeftStart")
endfun
" ---------------------------------------------------------------------
" s:SLeftDrag: {{{2
fun! s:SLeftDrag()
" call Dfunc("s:SLeftDrag() brush=".b:drawit_brush.' ['.line('.').','.virtcol('.').']')
call s:SavePosn()
call s:PutBlock(b:drawit_brush,0)
call s:RestorePosn()
" call Dret("s:SLeftDrag")
endfun
" ---------------------------------------------------------------------
" s:SLeftRelease: {{{2
fun! s:SLeftRelease()
" call Dfunc("s:SLeftRelease() brush=".b:drawit_brush.' ['.line('.').','.virtcol('.').']')
call s:SLeftDrag()
nunmap <s-leftdrag>
nunmap <s-leftrelease>
" call Dret("s:SLeftRelease")
endfun
" ---------------------------------------------------------------------
" s:CLeftStart: begin moving a block of text {{{2
fun! s:CLeftStart()
if !exists("b:drawit_brush")
let b:drawit_brush= "a"
endif
" call Dfunc("s:CLeftStart() brush=".b:drawit_brush)
if !line("'<") || !line("'>")
redraw!
echohl Error
echo "must visual-block select a region first"
" call Dret("s:CLeftStart : must visual-block select a region first")
return
endif
'<,'>call DrawIt#SetBrush(b:drawit_brush)
let s:cleft_width= virtcol("'>") - virtcol("'<")
if s:cleft_width < 0
let s:cleft_width= -s:cleft_width
endif
let s:cleft_height= line("'>") - line("'<")
if s:cleft_height < 0
let s:cleft_height= -s:cleft_height
endif
if exists("s:cleft_oldblock")
unlet s:cleft_oldblock
endif
" call Decho("blocksize: ".s:cleft_height."x".s:cleft_width)
noremap <silent> <c-leftdrag> :<c-u>call <SID>CLeftDrag()<cr>
noremap <silent> <c-leftrelease> <leftmouse>:<c-u>call <SID>CLeftRelease()<cr>
" call Dret("s:CLeftStart")
endfun
" ---------------------------------------------------------------------
" s:CLeftDrag: {{{2
fun! s:CLeftDrag()
" call Dfunc("s:CLeftDrag() cleft_width=".s:cleft_width." cleft_height=".s:cleft_height)
exe 'let keepbrush= @'.b:drawit_brush
" call Decho("keepbrush<".keepbrush.">")
" restore prior contents of block zone
if exists("s:cleft_oldblock")
" call Decho("draw prior contents: [".line(".").",".virtcol(".")."] line($)=".line("$"))
" call Decho("draw prior contents<".s:cleft_oldblock.">")
exe 'let @'.b:drawit_brush.'=s:cleft_oldblock'
call s:PutBlock(b:drawit_brush,1)
endif
" move cursor to <leftmouse> position
exe "norm! \<leftmouse>"
" save new block zone contents
" call Decho("save contents: [".line(".").",".virtcol(".")."] - [".(line(".")+s:cleft_height).",".(virtcol(".")+s:cleft_width)."]")
let curline= line(".")
call s:AutoCanvas(curline,curline + s:cleft_height,virtcol(".")+s:cleft_width)
if s:cleft_width > 0 && s:cleft_height > 0
exe "silent! norm! \<c-v>".s:cleft_width."l".s:cleft_height.'j"'.b:drawit_brush.'y'
elseif s:cleft_width > 0
exe "silent! norm! \<c-v>".s:cleft_width.'l"'.b:drawit_brush.'y'
else
exe "silent! norm! \<c-v>".s:cleft_height.'j"'.b:drawit_brush.'y'
endif
exe "let s:cleft_oldblock= @".b:drawit_brush
" call Decho("s:cleft_oldblock=@".b:drawit_brush)
" call Decho("cleft_height=".s:cleft_height." cleft_width=".s:cleft_width)
" call Decho("save contents<".s:cleft_oldblock.">")
" draw the brush
" call Decho("draw brush")
" call Decho("draw brush ".b:drawit_brush.": [".line(".").",".virtcol(".")."] line($)=".line("$"))
exe 'let @'.b:drawit_brush.'=keepbrush'
call s:PutBlock(b:drawit_brush,1)
" call Dret("s:CLeftDrag")
endfun
" ---------------------------------------------------------------------
" s:CLeftRelease: {{{2
fun! s:CLeftRelease()
" call Dfunc("s:CLeftRelease()")
call s:CLeftDrag()
nunmap <c-leftdrag>
nunmap <c-leftrelease>
unlet s:cleft_oldblock s:cleft_height s:cleft_width
" call Dret("s:CLeftRelease")
endfun
" ---------------------------------------------------------------------
" DrawIt#SetBrush: {{{2
fun! DrawIt#SetBrush(brush) range
" call Dfunc("DrawIt#SetBrush(brush<".a:brush.">)")
let b:drawit_brush= a:brush
" call Decho("visualmode<".visualmode()."> range[".a:firstline.",".a:lastline."] visrange[".line("'<").",".line("'>")."]")
if visualmode() == "\<c-v>" && ((a:firstline == line("'>") && a:lastline == line("'<")) || (a:firstline == line("'<") && a:lastline == line("'>")))
" last visual mode was visual block mode, and
" either [firstline,lastline] == ['<,'>] or ['>,'<]
" Assuming that SetBrush called from a visual-block selection!
" Yank visual block into selected register (brush)
" call Decho("yanking visual block into register ".b:drawit_brush)
exe 'norm! gv"'.b:drawit_brush.'y'
endif
" call Dret("DrawIt#SetBrush : b:drawit_brush=".b:drawit_brush)
endfun
" ------------------------------------------------------------------------
" Modelines: {{{1
" vim: fdm=marker
let &cpo= s:keepcpo
unlet s:keepcpo