asciiblaster

- draw irc art in your web browser
git clone git://git.acid.vegas/asciiblaster.git
letters.js (2134B)
      1 var letters = (function(){
      2 
      3   var last_charset = ""
      4   var charset_index = 0
      5   var charsets = [
      6     'Basic Latin',
      7     'Latin-1 Supplement',
      8     'Box Drawing',
      9     'Block Elements',
     10   ]
     11   
     12   var letters = new Matrix (1, 1, function(x,y){
     13     var lex = new Lex (x,y)
     14     return lex
     15   })
     16   
     17   letters.charset = ""
     18 
     19   letters.repaint = function(charset){
     20     letters.charset = charset = charset || last_charset
     21     last_charset = charset
     22     var chars = unicode.block(charset, 32)
     23     if (chars[0] != " ") chars.unshift(" ")
     24     if (canvas.vertical) {
     25       letters.resize( Math.ceil( chars.length / 16 ), 16 )
     26     }
     27     else {
     28       letters.resize( 32, Math.ceil( chars.length / 32 ) )
     29     }
     30 
     31     var i = 0
     32 
     33     letters.forEach(function(lex,x,y){
     34       if (canvas.vertical) { x=x^y;y=x^y;x=x^y }
     35       var char = chars[i++]
     36       if (palette.chars.indexOf(brush.char) > 1) {
     37         lex.bg = brush.fg
     38         lex.fg = brush.bg
     39       }
     40       else {
     41         lex.bg = colors.black
     42         lex.fg = brush.fg == fillColor ? colors.black : brush.fg
     43       }
     44       lex.char = char
     45       lex.opacity = 1
     46       lex.build()
     47     })
     48   }
     49   
     50   letters.bind = function(){
     51     letters.forEach(function(lex,x,y){
     52       if (lex.bound) return
     53       lex.bound = true
     54 
     55       lex.span.addEventListener('mousedown', function(e){
     56         e.preventDefault()
     57         if (e.shiftKey) {
     58           charset_index = (charset_index+1) % charsets.length
     59           letters.repaint(charsets[charset_index])
     60           return
     61         }
     62         else if (e.ctrlKey || e.which == 3) {
     63           brush.char = lex.char
     64           brush.bg = brush.fg
     65           brush.fg = fillColor
     66         }
     67         else {
     68           brush.char = lex.char
     69           if (lex.char == " ") {
     70             brush.bg = brush.fg
     71           }
     72           else if (brush.bg != fillColor) {
     73             brush.fg = brush.bg
     74             brush.bg = fillColor
     75           }
     76         }
     77         if (! brush.modified) {
     78           brush.generate()
     79         }
     80         palette.repaint()
     81       })
     82       lex.span.addEventListener('contextmenu', function(e){
     83         e.preventDefault()
     84       })
     85     })
     86   }
     87   
     88   return letters
     89 })()