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<link rel="stylesheet" href="css/sally.css" type="text/css" charset="utf-8" />
<link rel="stylesheet" href="css/ak.css" type="text/css" charset="utf-8" />
<style type="text/css">
#rapper { white-space: pre; font-family: Menlo, monospace; cursor: crosshair; }
/*
body.grid span { border-right: 1px solid #444; border-top: 1px solid #444; border-bottom: 1px solid #444; }
*/
span.selected { border-bottom: #fff; }
</style>
<body class="grid">
<div id="canvas_rapper" class="rapper"></div>
<div id="brush_rapper" class="rapper"></div>
<div id="palette_rapper" class="rapper"></div>
<script>
var contentType = 'text/plain;charset=utf-8'
var cols = 80
var rows = 24
var dragging = false
var erasing = false
var canvas, tools, palette, brush, colors, mode
var color_names = ("white black dark-blue green red dark-red purple orange" +
"yellow lime dark-cyan cyan blue magenta dark-gray light-gray").split(" ");
var letters = "abcdefghijklmnop";
var colors = {}
color_names.forEach(function(name, i){ colors[name] = i })
function init () {
build()
bind()
}
function build () {
canvas = new Matrix (rows, cols, function(x,y){
var lex = new Lex (x,y)
if (x > y || y > x + 20 || x > y / 4 + 10) {
lex.clear()
}
else {
lex.bg = x+y*y
lex.fg = (x+y)%2
lex.char = ":"
}
lex.build()
return lex
})
brush = new Matrix (5, 5, function(x,y){
var lex = new Lex (x,y)
lex.build()
return lex
})
palette = new Matrix (2, 32, function(x,y){
var lex = new Lex (x,y)
lex.bg = y>>1
lex.build()
return lex
})
canvas.build(canvas_rapper)
brush.build(brush_rapper)
palette.build(palette_rapper)
}
function bind () {
canvas.forEach(function(lex, x, y){
lex.span.addEventListener('mousedown', function(e){
e.preventDefault()
dragging = true
erasing = e.which == "3"
draw(lex, x, y, erasing)
})
lex.span.addEventListener("mousemove", function(){
dragging && draw(lex, x, y, erasing)
})
})
palette.forEach(function(lex, x, y){
lex.span.addEventListener('mousedown', function(e){
e.preventDefault()
dragging = true
erasing = e.which == "3"
brush.fill(lex.fg, lex.bg)
})
})
window.addEventListener('mouseup', function(){
dragging = erasing = false
})
}
function Lex (x,y) {
this.x = x
this.y = y
this.span = document.createElement("span")
this.fg = colors.white
this.bg = colors.black
this.char = " "
}
Lex.prototype.build = function(){
this.span.className = this.css()
this.span.innerHTML = this.html()
}
Lex.prototype.css = function(){
return "f" + letters[this.fg&15] + "b" + letters[this.bg&15]
}
Lex.prototype.html = function(){
return this.char == " " ? " " : this.char
}
Lex.prototype.irc = function(){
if (this.bg == 1 && this.fg == 0) {
// return "\\x03" + "," + (this.bg&15) + this.char
return this.char
}
else {
return "\\x03" + (this.fg&15) + "," + (this.bg&15) + this.char
}
}
Lex.prototype.clone = function (lex){
this.fg = lex.fg
this.bg = lex.bg
this.char = lex.char
this.build()
}
Lex.prototype.eq = function(lex){
return lex && this.fg == lex.fg && this.bg == lex.fg && this.char == lex.char
}
Lex.prototype.clear = function(){
this.bg=1
this.fg=0
this.char = " "
}
function Matrix (w,h,f){
this.w = w, this.h = h
var aa = new Array (w)
for (var i = 0; i < w; i++) {
aa[i] = new Array (h)
for (var j = 0; j < h; j++) {
aa[i][j] = f(i,j)
}
}
this.aa = h == 1 ? aa[0] : aa
}
Matrix.prototype.forEach = function(f){
this.aa.forEach(function(row, y){
row.forEach(function(lex, x){
f(lex, x, y)
})
})
}
Matrix.prototype.clear = function(){
this.forEach(function(lex,x,y){ lex.clear() })
}
Matrix.prototype.fill = function(fg,bg){
this.forEach(function(lex,x,y){
lex.fg = fg
lex.bg = bg
lex.build()
})
}
Matrix.prototype.build = function(rapper){
this.aa.forEach(function(row, y){
var div = document.createElement("div")
row.forEach(function(lex, x) {
div.appendChild(lex.span)
})
rapper.appendChild( div )
})
// rapper.appendChild(frag)
}
function draw (lex, x, y, erasing) {
stamp (canvas, brush, x, y, erasing)
}
function stamp (canvas, brush, x, y, erasing) {
hh = brush.w/2|0
brush.forEach(function(lex, s, t){
s += x-hh
t += y-hh
if (s >= 0 || s < canvas.w || t >= 0 && t < canvas.h) {
canvas.aa[t][s].clone(lex)
}
})
}
function ascii () {
var lines = canvas.aa.map(function(row, y){
var last, line = ""
row.forEach(function(lex, x) {
if (lex.eq(last)) {
line += lex.char
}
else {
if (x > 0 && last && (last.bg != 1 || last.fg != 0)) line += "\\x03"
line += lex.irc()
last = lex
}
})
return line.replace(/\s+$/,"")
}).filter(function(line){ return line.length > 0 })
var txt = '/exec -out printf "' + lines.join("\\n") + '"\n'
return txt
}
document.body.addEventListener('copy', function (e) {
if (e.clipboardData) {
e.preventDefault();
e.clipboardData.setData(contentType, ascii());
}
if (window.clipboardData) {
e.returnValue = false;
window.clipboardData.setData(contentType, ascii());
}
}, false);
window.cssRule = function (selector, declaration) {
var x = document.styleSheets,y=x.length-1;
x[y].insertRule(selector+"{"+declaration+"}",x[y].cssRules.length);
};
init()
</script>
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