script.js
var RETINA, Toolbar, Palette, Codepage;
RETINA = window.devicePixelRatio > 1;
function createElement(elementName, args) {
"use strict";
var element;
args = args || {};
element = document.createElement(elementName);
Object.getOwnPropertyNames(args).forEach(function (name) {
if (typeof args[name] === "object") {
Object.getOwnPropertyNames(args[name]).forEach(function (subName) {
element[name][subName] = args[name][subName];
});
} else {
element[name] = args[name];
}
});
return element;
}
Toolbar = (function () {
"use strict";
var selected, shortcuts;
shortcuts = [];
function addTool(tool, shortcut) {
var div, paragraph;
function select() {
if (selected && (selected.tool.uid === tool.uid)) {
if (tool.modeChange) {
tool.modeChange();
if (shortcut) {
paragraph.textContent = tool.toString() + " (" + shortcut.symbol + ")";
} else {
paragraph.textContent = tool.toString();
}
}
} else {
if (tool.init()) {
if (selected) {
selected.div.className = "tool";
selected.tool.remove();
}
selected = {"div": div, "tool": tool};
div.className = "tool selected";
}
}
}
div = createElement("div", {"className": "tool"});
div.onclick = select;
if (shortcut) {
shortcuts[shortcut.keyCode] = select;
paragraph = createElement("p", {"textContent": tool.toString() + " (" + shortcut.symbol + ")"});
} else {
paragraph = createElement("p", {"textContent": tool.toString()});
}
div.appendChild(paragraph);
document.getElementById("tools").appendChild(div);
return {
"select": select
};
}
document.addEventListener("keypress", function (evt) {
var keyCode;
keyCode = evt.keyCode || evt.which;
if (shortcuts[keyCode] && selected) {
evt.preventDefault();
shortcuts[keyCode](evt.keyCode);
}
}, false);
return {
"addTool": addTool
};
}());
Palette = (function () {
"use strict";
var selected, canvas, COLORS;
function egaRGB(value) {
return new Uint8Array([
(((value & 32) >> 5) + ((value & 4) >> 1)) * 0x55,
(((value & 16) >> 4) + ((value & 2))) * 0x55,
(((value & 8) >> 3) + ((value & 1) << 1)) * 0x55,
255
]);
}
COLORS = [0, 1, 2, 3, 4, 5, 20, 7, 56, 57, 58, 59, 60, 61, 62, 63].map(egaRGB);
function styleRGBA(rgba) {
return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ", " + rgba[3] + ")";
}
function drawSwatches(canvas) {
var ctx, i;
ctx = canvas.getContext("2d");
ctx = canvas.getContext("2d");
for (i = 0; i < 16; ++i) {
ctx.fillStyle = styleRGBA(COLORS[i]);
ctx.fillRect((i % 8) * canvas.width / 8, (i < 8) ? canvas.height / 4 : 0, canvas.width / 8, canvas.height / 4);
}
}
function set(col) {
var evt, ctx;
ctx = canvas.getContext("2d");
ctx.fillStyle = styleRGBA(COLORS[col]);
ctx.fillRect(0, canvas.height / 2, canvas.width, canvas.height / 2);
selected = col;
evt = new CustomEvent("colorChange", {"detail": selected});
document.dispatchEvent(evt);
}
document.addEventListener("DOMContentLoaded", function () {
var divPalette;
divPalette = document.getElementById("palette");
canvas = createElement("canvas", {"width": RETINA ? 320 : 160, "height": RETINA ? 320 : 160, "style": {"width": "160px", "height": "160px", "verticalAlign": "bottom"}});
drawSwatches(canvas);
canvas.onclick = function (evt) {
var x, y, col;
x = evt.clientX - document.getElementById("toolkit").offsetLeft;
y = evt.clientY - divPalette.offsetTop;
col = (1 - Math.floor(y / 40)) * 8 + Math.floor(x / 20);
if (col >= 0) {
set(col);
}
};
set(15);
divPalette.appendChild(canvas);
}, false);
document.addEventListener("keydown", function (evt) {
var keyCode, modifier;
keyCode = evt.keyCode || evt.which;
modifier = evt.metaKey || evt.altKey || evt.ctrlKey;
if (!modifier) {
if (keyCode >= 49 && keyCode <= 56) {
evt.preventDefault();
set(keyCode - 49 + (evt.shiftKey ? 8 : 0));
} else {
switch (keyCode) {
case 9:
evt.preventDefault();
set((selected < 8) ? (selected + 8) : (selected - 8));
break;
case 81:
evt.preventDefault();
set((selected === 0) ? 15 : selected - 1);
break;
case 87:
evt.preventDefault();
set((selected === 15) ? 0 : selected + 1);
break;
}
}
}
}, false);
function getSelected() {
return selected;
}
return {
"COLORS": COLORS,
"getSelected": getSelected
};
}());
Codepage = (function () {
"use strict";
var BASE64_CHARS, FONT_80X25, FONT_80X25_SMALL, bigFontBuffer, smallFontBuffer, NULL, SPACE, UPPER_HALF_BLOCK, LOWER_HALF_BLOCK, LIGHT_SHADE, MEDIUM_SHADE, DARK_SHADE, FULL_BLOCK, BULLET_OPERATOR, MIDDLE_DOT, NO_BREAK_SPACE;
NULL = 0;
SPACE = 32;
UPPER_HALF_BLOCK = 223;
LOWER_HALF_BLOCK = 220;
LIGHT_SHADE = 176;
MEDIUM_SHADE = 177;
DARK_SHADE = 178;
FULL_BLOCK = 219;
BULLET_OPERATOR = 249;
MIDDLE_DOT = 250;
NO_BREAK_SPACE = 255;
BASE64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
bigFontBuffer = [];
smallFontBuffer = [];
function base64ToBits(text) {
var i, j, k, bytes16, bytes8, bits;
bytes16 = new Uint32Array(1);
bytes8 = new Uint8Array(text.length / 4 * 3);
for (i = j = 0; i < text.length; bytes16[0] = 0) {
bytes16[0] += (BASE64_CHARS.indexOf(text.charAt(i++)) & 63) << 18;
bytes16[0] += (BASE64_CHARS.indexOf(text.charAt(i++)) & 63) << 12;
bytes16[0] += (BASE64_CHARS.indexOf(text.charAt(i++)) & 63) << 6;
bytes16[0] += BASE64_CHARS.indexOf(text.charAt(i++)) & 63;
bytes8[j++] = (bytes16[0] >> 16) & 255;
bytes8[j++] = (bytes16[0] >> 8) & 255;
bytes8[j++] = bytes16[0] & 255;
}
bits = new Uint8Array(9 * 16 * 256);
for (i = 0, k = 0; i < 9 * 16 * 256 / 8; ++i) {
for (j = 7; j >= 0; --j) {
bits[k++] = (bytes8[i] >> j) & 1;
}
}
return bits;
}
FONT_80X25 = base64ToBits("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");
FONT_80X25_SMALL = base64ToBits("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");
function doubleScale(rgbaSource, fontWidth) {
var byteWidth, doubledByteWidth, rgba, rgbaDoubled, startOfRow, i, k;
byteWidth = fontWidth * 4;
doubledByteWidth = byteWidth * 2;
rgbaDoubled = new Uint8Array(rgbaSource.length * 4);
for (i = 0, k = 0; i < rgbaSource.length; i += 4) {
rgba = rgbaSource.subarray(i, i + 4);
rgbaDoubled.set(rgba, k);
k += 4;
rgbaDoubled.set(rgba, k);
k += 4;
if ((i + 4) % byteWidth === 0) {
startOfRow = k - doubledByteWidth;
rgbaDoubled.set(rgbaDoubled.subarray(startOfRow, startOfRow + doubledByteWidth), k);
k += doubledByteWidth;
}
}
return rgbaDoubled;
}
function scaleCanvas(sourceData, width, height, chunkWidth, chunkHeight) {
var destWidth, destHeight, destData, rgba, pixelRowOffset, chunkSize, i, j, k, x, y, r, g, b, a;
rgba = new Uint8Array(4);
destWidth = width / chunkWidth;
destHeight = height / chunkHeight;
destData = new Uint8Array(destWidth * destHeight * 4);
pixelRowOffset = (width - chunkWidth) * 4;
chunkSize = chunkWidth * chunkHeight;
for (i = x = y = 0; i < destData.length; i += 4) {
for (j = r = g = b = a = 0, k = (y * width * chunkHeight + x * chunkWidth) * 4; j < chunkSize; ++j) {
r += sourceData[k++];
g += sourceData[k++];
b += sourceData[k++];
a += sourceData[k++];
if ((j + 1) % chunkWidth === 0) {
k += pixelRowOffset;
}
}
rgba[0] = Math.round(r / chunkSize);
rgba[1] = Math.round(g / chunkSize);
rgba[2] = Math.round(b / chunkSize);
rgba[3] = Math.round(a / chunkSize);
destData.set(rgba, i);
if (++x === destWidth) {
x = 0;
++y;
}
}
return destData;
}
function getData(charCode, fg, bg, width, height, data, excludeNinthBit) {
var fontBitWidth, rgbaOutput, i, j, k;
fontBitWidth = width * height;
rgbaOutput = new Uint8Array((excludeNinthBit ? width - 1 : width) * height * 4);
for (i = 0, j = charCode * fontBitWidth, k = 0; i < fontBitWidth; ++i, ++j) {
if (!excludeNinthBit || (i + 1) % 9 !== 0) {
if (data[j]) {
rgbaOutput.set(Palette.COLORS[fg], k);
} else {
rgbaOutput.set(Palette.COLORS[bg], k);
}
k += 4;
}
}
return rgbaOutput;
}
function bigFont(charCode, fg, bg) {
var bufferIndex;
bufferIndex = charCode + (fg << 8) + (bg << 12);
if (!bigFontBuffer[bufferIndex]) {
bigFontBuffer[bufferIndex] = getData(charCode, fg, bg, 9, 16, FONT_80X25, true);
if (RETINA) {
bigFontBuffer[bufferIndex] = doubleScale(bigFontBuffer[bufferIndex], 8);
}
}
return bigFontBuffer[bufferIndex];
}
function smallFont(charCode, fg, bg) {
var bufferIndex;
bufferIndex = charCode + (fg << 8) + (bg << 12);
if (!smallFontBuffer[bufferIndex]) {
smallFontBuffer[bufferIndex] = getData(charCode, fg, bg, 4, 8, FONT_80X25_SMALL, false);
if (!RETINA) {
smallFontBuffer[bufferIndex] = scaleCanvas(smallFontBuffer[bufferIndex], 4, 8, 2, 2);
}
}
return smallFontBuffer[bufferIndex];
}
return {
"bigFont": bigFont,
"smallFont": smallFont,
"NULL": NULL,
"SPACE": SPACE,
"UPPER_HALF_BLOCK": UPPER_HALF_BLOCK,
"LOWER_HALF_BLOCK": LOWER_HALF_BLOCK,
"LIGHT_SHADE": LIGHT_SHADE,
"MEDIUM_SHADE": MEDIUM_SHADE,
"DARK_SHADE": DARK_SHADE,
"FULL_BLOCK": FULL_BLOCK,
"BULLET_OPERATOR": BULLET_OPERATOR,
"MIDDLE_DOT": MIDDLE_DOT,
"NO_BREAK_SPACE": NO_BREAK_SPACE
};
}());
function editorCanvas(height) {
"use strict";
var canvas, previewCanvas, ctx, previewCtx, imageData, previewImageData, image;
image = new Uint8Array(80 * height * 3);
function draw(charCode, x, y, fg, bg) {
previewImageData.data.set(Codepage.smallFont(charCode, fg, bg), 0);
imageData.data.set(Codepage.bigFont(charCode, fg, bg), 0);
previewCtx.putImageData(previewImageData, x * previewImageData.width, y * previewImageData.height);
ctx.putImageData(imageData, x * imageData.width, y * imageData.height);
}
function update(index) {
draw(image[index], (index / 3) % 80, Math.floor(index / 240), image[index + 1], image[index + 2]);
}
function redraw() {
var i;
for (i = 0; i < image.length; i += 3) {
update(i);
}
}
function set(charCode, fg, bg, index) {
image[index] = charCode;
image[index + 1] = fg;
image[index + 2] = bg;
update(index);
}
function get(coord) {
var index, charCode, foreground, background, isBlocky, upperBlockColor, lowerBlockColor;
index = (coord.textY * 80 + coord.textX) * 3;
charCode = image[index];
foreground = image[index + 1];
background = image[index + 2];
switch (charCode) {
case Codepage.NULL:
case Codepage.SPACE:
case Codepage.NO_BREAK_SPACE:
upperBlockColor = background;
lowerBlockColor = background;
isBlocky = true;
break;
case Codepage.UPPER_HALF_BLOCK:
upperBlockColor = foreground;
lowerBlockColor = background;
isBlocky = true;
break;
case Codepage.LOWER_HALF_BLOCK:
upperBlockColor = background;
lowerBlockColor = foreground;
isBlocky = true;
break;
case Codepage.FULL_BLOCK:
upperBlockColor = foreground;
lowerBlockColor = foreground;
isBlocky = true;
break;
default:
isBlocky = false;
}
return {
"charCode": charCode,
"foreground": foreground,
"background": background,
"isBlocky": isBlocky,
"upperBlockColor": upperBlockColor,
"lowerBlockColor": lowerBlockColor
};
}
function setChunk(coord, color) {
var block;
block = get(coord);
if (block.isBlocky) {
if (coord.isUpperHalf) {
if (block.lowerBlockColor === color) {
set(Codepage.FULL_BLOCK, color, block.background, coord.index);
} else {
set(Codepage.UPPER_HALF_BLOCK, color, block.lowerBlockColor, coord.index);
}
} else {
if (block.upperBlockColor === color) {
set(Codepage.FULL_BLOCK, color, block.background, coord.index);
} else {
set(Codepage.LOWER_HALF_BLOCK, color, block.upperBlockColor, coord.index);
}
}
} else {
if (coord.isUpperHalf) {
set(Codepage.UPPER_HALF_BLOCK, color, block.background, coord.index);
} else {
set(Codepage.LOWER_HALF_BLOCK, color, block.background, coord.index);
}
}
}
function getBlockCoord(blockX, blockY) {
var x, y, textY, modBlockY;
x = blockX * 8;
y = blockY * 16;
textY = Math.floor(blockY / 2);
modBlockY = blockY % 2;
return {
"index": (textY * 80 + blockX) * 3,
"x": x,
"y": y,
"textX": blockX,
"textY": textY,
"blockX": blockX,
"blockY": blockY,
"isUpperHalf": (modBlockY === 0),
"isLowerHalf": (modBlockY === 1)
};
}
function chunkLine(from, to, callback) {
var x0, y0, x1, y1, dx, dy, sx, sy, err, e2;
x0 = from.blockX;
y0 = from.blockY;
x1 = to.blockX;
y1 = to.blockY;
dx = Math.abs(x1 - x0);
sx = (x0 < x1) ? 1 : -1;
dy = Math.abs(y1 - y0);
sy = (y0 < y1) ? 1 : -1;
err = ((dx > dy) ? dx : -dy) / 2;
while (true) {
callback(getBlockCoord(x0, y0));
if (x0 === x1 && y0 === y1) {
break;
}
e2 = err;
if (e2 > -dx) {
err -= dy;
x0 += sx;
}
if (e2 < dy) {
err += dx;
y0 += sy;
}
}
}
function setChar(charCode, color, coord) {
var block;
block = get(coord);
if (block.isBlocky) {
if (coord.isUpperHalf) {
set(charCode, color, block.upperBlockColor, coord.index);
} else {
set(charCode, color, block.lowerBlockColor, coord.index);
}
} else {
set(charCode, color, block.background, coord.index);
}
}
function resolveConflict(coord, bias) {
var block;
block = get(coord);
if (block.background > 7) {
if (block.isBlocky) {
if (block.foreground > 7) {
if (block.background === bias) {
if (block.upperBlockColor === block.background) {
set(Codepage.UPPER_HALF_BLOCK, block.background, block.foreground - 8, coord.index);
} else {
set(Codepage.LOWER_HALF_BLOCK, block.background, block.foreground - 8, coord.index);
}
} else {
set(image[coord.index], block.foreground, block.background - 8, coord.index);
}
} else {
if ((block.upperBlockColor === block.background) && (block.lowerBlockColor === block.background)) {
set(Codepage.FULL_BLOCK, block.background, block.foreground, coord.index);
} else if (block.upperBlockColor === block.background) {
set(Codepage.UPPER_HALF_BLOCK, block.background, block.foreground, coord.index);
} else if (block.lowerBlockColor === block.background) {
set(Codepage.LOWER_HALF_BLOCK, block.background, block.foreground, coord.index);
} else {
set(Codepage.FULL_BLOCK, block.foreground, block.background - 8, coord.index);
}
}
} else {
set(image[coord.index], block.foreground, block.background - 8, coord.index);
}
}
}
function resolveConflicts(bias) {
var i;
for (i = 0; i < image.length; i += 3) {
resolveConflict({"textX": (i / 3) % 80, "textY": Math.floor(i / 240), "index": i}, bias);
}
}
function init(divEditor) {
var mousedown;
canvas = createElement("canvas", {"width": RETINA ? 1280 : 640, "height": RETINA ? height * 32 : height * 16, "style": {"width": "640px", "height": (height * 16) + "px", "verticalAlign": "bottom"}});
previewCanvas = createElement("canvas", {"width": RETINA ? 320 : 160, "height": RETINA ? height * 8 : height * 4, "style": {"width": "160px", "height": (height * 4) + "px", "verticalAlign": "bottom"}});
ctx = canvas.getContext("2d");
previewCtx = previewCanvas.getContext("2d");
imageData = ctx.createImageData(RETINA ? 16 : 8, RETINA ? 32 : 16);
previewImageData = ctx.createImageData(RETINA ? 4 : 2, RETINA ? 8 : 4);
redraw();
function getCoord(pageX, pageY) {
var x, y, coord;
x = pageX - divEditor.offsetLeft;
y = pageY - divEditor.offsetTop;
coord = getBlockCoord(Math.floor(x / 8), Math.floor(y / 8));
coord.x = x;
coord.y = y;
return coord;
}
canvas.addEventListener("mousedown", function (evt) {
mousedown = true;
document.dispatchEvent(new CustomEvent("canvasDown", {"detail": getCoord(evt.pageX, evt.pageY)}));
}, false);
canvas.addEventListener("mouseup", function () {
mousedown = false;
}, false);
canvas.addEventListener("mousemove", function (evt) {
document.dispatchEvent(new CustomEvent(mousedown ? "canvasDrag" : "canvasMove", {"detail": getCoord(evt.pageX, evt.pageY)}));
}, false);
canvas.addEventListener("mouseout", function () {
mousedown = false;
}, false);
divEditor.appendChild(canvas);
document.getElementById("preview").appendChild(previewCanvas);
}
return {
"init": init,
"height": height,
"set": set,
"get": get,
"getBlockCoord": getBlockCoord,
"setChunk": setChunk,
"chunkLine": chunkLine,
"setChar": setChar,
"resolveConflict": resolveConflict,
"resolveConflicts": resolveConflicts,
"redraw": redraw,
"image": image
};
}
function freehandTool(editor) {
"use strict";
var currentColor, lastPoint, shiftDown;
function colorChange(evt) {
currentColor = evt.detail;
}
function blockyLine(from, to) {
editor.chunkLine(from, to, function (coord) {
editor.setChunk(coord, currentColor);
editor.resolveConflict(coord, currentColor);
});
}
function canvasDown(evt) {
if (shiftDown && lastPoint) {
blockyLine(lastPoint, evt.detail);
} else {
editor.setChunk(evt.detail, currentColor);
editor.resolveConflict(evt.detail, currentColor);
}
lastPoint = evt.detail;
}
function canvasDrag(evt) {
blockyLine(lastPoint, evt.detail);
lastPoint = evt.detail;
}
function keydown(evt) {
switch (evt.keyCode || evt.which) {
case 16:
shiftDown = true;
break;
}
}
function keyup(evt) {
switch (evt.keyCode || evt.which) {
case 16:
shiftDown = false;
break;
}
}
function init() {
document.addEventListener("colorChange", colorChange, false);
document.addEventListener("canvasDown", canvasDown, false);
document.addEventListener("canvasDrag", canvasDrag, false);
document.addEventListener("keydown", keydown, false);
document.addEventListener("keyup", keyup, false);
currentColor = Palette.getSelected();
return true;
}
function remove() {
document.removeEventListener("colorChange", colorChange);
document.removeEventListener("canvasDown", canvasDown);
document.removeEventListener("canvasDrag", canvasDrag);
document.removeEventListener("keydown", keydown);
document.removeEventListener("keyup", keyup);
}
function toString() {
return "Freehand";
}
return {
"init": init,
"remove": remove,
"toString": toString,
"uid": "freehand"
};
}
function fillTool(editor) {
"use strict";
var currentColor;
function colorChange(evt) {
currentColor = evt.detail;
}
function simpleFill(blockX, blockY, targetColor) {
var coord, block, queue;
queue = [editor.getBlockCoord(blockX, blockY)];
while (queue.length) {
coord = queue.pop();
block = editor.get(coord);
if ((coord.isUpperHalf && (block.upperBlockColor === targetColor)) || (coord.isLowerHalf && (block.lowerBlockColor === targetColor))) {
editor.setChunk(coord, currentColor);
if (coord.blockX > 0) {
queue.push(editor.getBlockCoord(coord.blockX - 1, coord.blockY));
}
if (coord.blockX < 79) {
queue.push(editor.getBlockCoord(coord.blockX + 1, coord.blockY));
}
if (coord.blockX > 0) {
queue.push(editor.getBlockCoord(coord.blockX, coord.blockY - 1));
}
if (coord.blockX < editor.height * 2 - 1) {
queue.push(editor.getBlockCoord(coord.blockX, coord.blockY + 1));
}
}
}
}
function canvasDown(evt) {
var block, targetColor;
block = editor.get(evt.detail);
if (block.isBlocky) {
targetColor = evt.detail.isUpperHalf ? block.upperBlockColor : block.lowerBlockColor;
if (targetColor !== currentColor) {
simpleFill(evt.detail.blockX, evt.detail.blockY, targetColor);
editor.resolveConflicts(currentColor);
}
}
}
function init() {
document.addEventListener("canvasDown", canvasDown, false);
document.addEventListener("colorChange", colorChange, false);
currentColor = Palette.getSelected();
return true;
}
function remove() {
document.removeEventListener("canvasDown", canvasDown);
document.removeEventListener("colorChange", colorChange);
}
function toString() {
return "Fill";
}
return {
"init": init,
"remove": remove,
"toString": toString,
"uid": "fill"
};
}
function charBrushTool(name, editor, options) {
"use strict";
var currentColor, shiftDown, lastPoint, mode;
mode = 0;
function colorChange(evt) {
currentColor = evt.detail;
}
function charLine(from, to) {
editor.chunkLine(from, to, function (coord) {
editor.setChar(options[mode].charCode, currentColor, coord);
editor.resolveConflict(coord, currentColor);
});
}
function canvasDown(evt) {
if (shiftDown && lastPoint) {
charLine(lastPoint, evt.detail);
} else {
editor.setChar(options[mode].charCode, currentColor, evt.detail);
editor.resolveConflict(evt.detail, currentColor);
}
lastPoint = evt.detail;
}
function canvasDrag(evt) {
charLine(lastPoint, evt.detail);
lastPoint = evt.detail;
}
function keydown(evt) {
switch (evt.keyCode || evt.which) {
case 16:
shiftDown = true;
break;
}
}
function keyup(evt) {
switch (evt.keyCode || evt.which) {
case 16:
shiftDown = false;
break;
}
}
function init() {
document.addEventListener("canvasDown", canvasDown, false);
document.addEventListener("canvasDrag", canvasDrag, false);
document.addEventListener("colorChange", colorChange, false);
document.addEventListener("keydown", keydown, false);
document.addEventListener("keyup", keyup, false);
currentColor = Palette.getSelected();
return true;
}
function remove() {
document.removeEventListener("canvasDown", canvasDown);
document.removeEventListener("canvasDrag", canvasDrag);
document.removeEventListener("colorChange", colorChange);
document.removeEventListener("keydown", keydown);
document.addEventListener("keyup", keyup);
}
function modeChange() {
if (++mode === options.length) {
mode = 0;
}
}
function toString() {
return options.length ? name + ": " + options[mode].name : name;
}
return {
"init": init,
"remove": remove,
"modeChange": modeChange,
"toString": toString,
"uid": "charbrush-" + name
};
}
function clearTool(editor) {
"use strict";
function init() {
var i;
for (i = 0; i < editor.image.length; ++i) {
editor.image[i] = 0;
}
editor.redraw();
return false;
}
function toString() {
return "Clear";
}
return {
"init": init,
"toString": toString,
"uid": "clear"
};
}
function exportTool(editor) {
"use strict";
function toDataURL(bytes) {
return "data:application/octet-stream;base64," + btoa(String.fromCharCode.apply(null, bytes));
}
function highestRow(input) {
reutu
}
function toBinFormat(input) {
var output, inputIndex, outputIndex, highest, end;
highest = 26;
for (inputIndex = 0; inputIndex < input.length; inputIndex += 3) {
if (input[inputIndex]) {
highest = Math.max(Math.ceil(inputIndex / 240), highest);
}
}
output = new Uint8Array((input.length / 3 * 2) + 11);
output.set(new Uint8Array([88, 66, 73, 78, 26, 80, 0, highest, 0, 16, 0]), 0);
for (inputIndex = 0, outputIndex = 11, end = highest * 80 * 3; inputIndex < end; inputIndex += 3, outputIndex += 2) {
output[outputIndex] = input[inputIndex];
output[outputIndex + 1] = input[inputIndex + 1] + (input[inputIndex + 2] << 4);
}
return output;
}
function removeLink() {
var divExport;
divExport = document.getElementById("export");
if (divExport.firstChild) {
divExport.removeChild(divExport.firstChild);
}
}
function init() {
var anchor;
removeLink();
anchor = createElement("a", {"href": toDataURL(toBinFormat(editor.image)), "onclick": removeLink, "textContent": "Download", "download": "ansiedit.xb"});
document.getElementById("export").appendChild(anchor);
return false;
}
function toString() {
return "Export";
}
return {
"init": init,
"toString": toString,
"uid": "export"
};
}
document.addEventListener("DOMContentLoaded", function () {
"use strict";
var editor;
editor = editorCanvas(100);
editor.init(document.getElementById("editor"));
Toolbar.addTool(freehandTool(editor), {"keyCode": 102, "symbol": "f"}).select();
Toolbar.addTool(fillTool(editor), {"keyCode": 110, "symbol": "n"});
Toolbar.addTool(charBrushTool("Shading", editor, [{"charCode": Codepage.LIGHT_SHADE, "name": "Light"}, {"charCode": Codepage.MEDIUM_SHADE, "name": "Medium"}, {"charCode": Codepage.DARK_SHADE, "name": "Dark"}]), {"keyCode": 115, "symbol": "s"});
Toolbar.addTool(charBrushTool("Dot", editor, [{"charCode": Codepage.MIDDLE_DOT, "name": "Small"}, {"charCode": Codepage.BULLET_OPERATOR, "name": "Large"}]), {"keyCode": 100, "symbol": "d"});
Toolbar.addTool(clearTool(editor));
Toolbar.addTool(exportTool(editor), {"keyCode": 101, "symbol": "e"});
}, false);
