asciiblaster

- draw irc art in your web browser
git clone git://git.acid.vegas/asciiblaster.git
palette.js (2895B)
      1 var palette = (function(){
      2 
      3   var palette = new Matrix (32, 2, function(x,y){
      4     var lex = new Lex (x,y)
      5     return lex
      6   })
      7 
      8   var palette_index = localStorage.getItem("ascii.palette") || 1
      9   var palette_list = [all_hue, all_inv_hue, mirc_color, mirc_color_reverse]
     10   var palette_fn = palette_list[palette_index]
     11   palette.chars = "  " + dither.a + dither.b + dither.c
     12 
     13   palette.repaint = function(){
     14     var xw = use_experimental_palette ? 5 : 2
     15     if (canvas.vertical) {
     16       palette.resize( xw, 16 )
     17     }
     18     else {
     19       palette.resize( 32, xw )
     20     }
     21 
     22     palette.forEach(function(lex,x,y){
     23       if (canvas.vertical) { x=x^y;y=x^y;x=x^y;x*=2 }
     24       if (y < 2) {
     25         lex.bg = palette_fn(x>>1)
     26         lex.fg = palette_fn(x>>1)
     27       }
     28       else {
     29         lex.bg = fillColor
     30         lex.fg = palette_fn(x>>1)
     31       }
     32       lex.char = palette.chars[y]
     33       lex.opacity = 1
     34       lex.build()
     35       if (lex.char == "_") lex.char = " "
     36     })
     37   }
     38   palette.repaint()
     39   var use_experimental_palette = false
     40   palette.experimental = function(state){
     41     use_experimental_palette = typeof state == "boolean" ? state : ! use_experimental_palette
     42     use_experimental_palette ? palette.resize(32, 5) : palette.resize(32, 2)
     43     palette.repaint()
     44     return use_experimental_palette
     45   }
     46 
     47   palette.bind = function(){
     48     palette.forEach(function(lex, x, y){
     49       if (lex.bound) return
     50       lex.bound = true
     51 
     52       lex.span.addEventListener('mousedown', function(e){
     53         e.preventDefault()
     54         if (e.shiftKey) {
     55           palette_index = (palette_index+1) % palette_list.length
     56           localStorage.setItem("ascii.palette", palette_index)
     57           palette_fn = palette_list[palette_index]
     58           palette.repaint()
     59           return
     60         }
     61         if (e.ctrlKey || e.which == 3) return
     62         if (brush.char == " " && lex.char == " ") {
     63           brush.fg = lex.fg
     64           brush.bg = lex.bg
     65           brush.char = lex.char
     66         }
     67         else if (lex.char != " ") {
     68           brush.fg = lex.bg
     69           brush.bg = lex.fg
     70           brush.char = lex.char
     71         }
     72         else {
     73           brush.fg = lex.bg
     74           brush.bg = fillColor
     75 //           brush.char = lex.char
     76         }
     77         brush.opacity = lex.opacity
     78         if (! brush.modified) {
     79           brush.generate()
     80         }
     81         if (filling || e.ctrlKey) {
     82           fillColor = lex.bg
     83         }
     84         letters.repaint()
     85       })
     86 
     87       lex.span.addEventListener('contextmenu', function(e){
     88         e.preventDefault()
     89         fillColor = y ? lex.fg : lex.bg
     90         palette.repaint()
     91         brush.fg = lex.fg
     92         brush.char = lex.char
     93         brush.opacity = lex.opacity
     94         brush.generate()
     95         brush_rapper.style.borderColor = css_reverse_lookup[fillColor]
     96         return
     97       })
     98 
     99     })
    100   }
    101 
    102   brush_rapper.style.borderColor = css_reverse_lookup[fillColor]
    103 
    104   return palette
    105 
    106 })()