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var canvas = current_canvas = (function(){
var cols = 100
var rows = 30
var canvas = new Matrix (cols, rows, function(x,y){
var lex = new Lex (x,y)
lex.build()
return lex
})
canvas.bind = function(){
canvas.forEach(function(lex, x, y){
if (lex.bound) return
lex.bound = true
var point = [x,y]
lex.span.addEventListener('contextmenu', function(e){
e.preventDefault()
})
lex.span.addEventListener('mousedown', function(e){
if (is_mobile) return
e.preventDefault()
dragging = true
current_canvas = canvas
if (e.altKey) {
if (e.shiftKey) {
blit.copy_from(canvas, brush, floor(x-brush.w/2), floor(y-brush.h/2))
brush.mask(brush)
draw.set_last_point(e, point)
}
else {
brush.load(lex)
brush.generate()
dragging = false
}
return
}
else if (drawing) {
undo.new()
draw.down(e, lex, point)
}
else if (selecting) {
selection.down(e, lex, point)
}
else if (transforming) {
transform.down(e, lex, point)
}
else if (filling) {
undo.new()
draw.fill(brush, x, y)
}
canvas.focus(x, y)
})
lex.span.addEventListener("mousemove", function(e){
mouse.x = x
mouse.y = y
if (is_mobile) return
if (! dragging) return
if (drawing) {
draw.move(e, lex, point)
}
else if (selecting) {
selection.move(e, lex, point)
}
else if (transforming) {
transform.move(e, lex, point)
}
canvas.focus(x, y)
})
})
if (is_mobile) {
canvas.rapper.addEventListener('touchstart', function(e){
e.preventDefault()
var x, y, point, lex
x = (e.touches[0].pageX - canvas.rapper.offsetTop) / canvas.aa[0][0].span.offsetWidth
y = (e.touches[0].pageY - canvas.rapper.offsetTop) / canvas.aa[0][0].span.offsetHeight
x = ~~clamp(x, 0, canvas.aa[0].length-1)
y = ~~clamp(y, 0, canvas.aa.length-1)
point = [x,y]
lex = canvas.aa[y][x]
dragging = true
if (drawing) {
undo.new()
draw.down(e, lex, point)
}
else if (filling) {
undo.new()
draw.fill(brush, x, y)
}
canvas.focus(x, y)
})
canvas.rapper.addEventListener("touchmove", function(e){
e.preventDefault()
var x, y, point, lex
x = (e.touches[0].pageX - canvas.rapper.offsetTop) / canvas.aa[0][0].span.offsetWidth
y = (e.touches[0].pageY - canvas.rapper.offsetTop) / canvas.aa[0][0].span.offsetHeight
x = ~~clamp(x, 0, canvas.aa[0].length-1)
y = ~~clamp(y, 0, canvas.aa.length-1)
point = [x,y]
lex = canvas.aa[y][x]
if (! dragging) return
shader_el.innerHTML = point.join(",")
if (drawing) {
draw.move(e, lex, point)
}
canvas.focus(x, y)
})
}
}
canvas.min = 1
canvas.max = 999
// canvas.resize(1, 1, true) // wont create undo state
canvas.resize = function(w, h, no_undo){
var old_w = this.w, old_h = this.h
w = this.w = clamp(w, this.min, this.max)
h = this.h = clamp(h, this.min, this.max)
if (old_w === w && old_h === h) return;
if (!no_undo){
undo.new()
undo.save_resize(w, h, old_w, old_h)
}
canvas.__proto__.resize.call(canvas, w, h)
controls.canvas_w.char = "" + w
controls.canvas_w.build()
controls.canvas_h.char = "" + h
controls.canvas_h.build()
}
canvas.size_add = function(w, h){
canvas.resize(canvas.w + w, canvas.h + h)
}
return canvas
})()
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