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draw.js
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draw.js
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var infoVersion = "v1.6.21";
var infoDate = "May 27, 2013";
var sketcher, canvas, context, sendForm,
bottomElem, sideElem, debugElem,
paletteElem, colorCodeElem; //main elements
var sliders = [];
var globalOffset = 0.5, //pixel offset
globalOffs_1 = globalOffset - 0.01;
var activeDrawing = false;
var sendButton = sendButton || false;
//////////////////////////////////////////////////
var cursor;
function Cursor() {
this.posX = 0;
this.posY = 0;
this.prevX = 0;
this.prevY = 0;
this.flushNext = false;
this.neverFlush = true;
this.visual = document.createElement("div");
sketcher.appendChild(this.visual);
this.visual.id = "cursor";
}
Cursor.prototype.update = function(event) {
if(event) {
this.posX = event.pageX - canvas.offsetLeft;
this.posY = event.pageY - canvas.offsetTop;
}
}
Cursor.prototype.draw = function(event) {
if (this.posX >= 0 && this.posX < cWidth &&
this.posY >= 0 && this.posY < cHeight) {
if(modes["app-compatible"]) {
context.beginPath();
context.lineWidth = 1;
if (modes["tool-preview"]) {
context.fillStyle = "rgba(" + tool.color + ", " + tool.opacity + ")";
context.shadowBlur = tool.shadow;
context.shadowColor = "rgb(" + tool.color + ")";
}
else {
context.strokeStyle = "rgb(" + tool.color + ")";
context.shadowBlur = 0;
}
context.arc(this.posX, this.posY, tool.width / 2, 0, Math.PI*2, false);
context.closePath();
modes["tool-preview"] ? context.fill() : context.stroke();
if (!this.neverFlush)
this.flushNext = true;
} else {
this.visual.style.display = "block";
this.visual.style.left = (this.posX + canvas.offsetLeft - tool.width / 2) + "px";
this.visual.style.top = (this.posY + canvas.offsetTop - tool.width / 2) + "px";
this.visual.style.width = Math.max(tool.width - 2, 0) + "px";
this.visual.style.height = Math.max(tool.width - 2, 0) + "px";
this.visual.style.borderRadius = Math.max(tool.width - 2, 0) / 2 + "px";
if(modes["tool-preview"]) {
this.visual.style.backgroundColor = "rgba(" + tool.color + "," + tool.opacity + ")";
this.visual.style.borderColor = "transparent";
this.visual.style.boxShadow = "0 0 " + tool.shadow + "px rgba(" + tool.color + "," + tool.opacity + ")";
} else {
this.visual.style.backgroundColor = "transparent";
this.visual.style.borderColor = "rgb(" + tool.color + ")";
this.visual.style.boxShadow = "none";
}
}
} else
this.hide();
}
Cursor.prototype.hide = function() {
this.visual.style.display = "none";
}
//////////////////////////////////////////////////
var history;
function History(size) {
this.size = size;
this.container = new Array(this.size);
this.position = 0;
this.positionMax = 0;
this.container[0] = context.getImageData(0, 0, cWidth, cHeight);
}
History.prototype.current = function() {
return this.container[this.position];
}
History.prototype.undo = function() {
if (this.position > 0)
this.position --;
context.putImageData(this.container[this.position], 0, 0);
updateButtons();
}
History.prototype.redo = function() {
if (this.position < this.size - 1 && this.position < this.positionMax)
this.position ++;
context.putImageData(this.container[this.position], 0, 0);
updateButtons();
}
History.prototype.push = function() {
if (this.position < this.size - 1) {
this.position ++;
this.positionMax = this.position;
} else for(i = 0; i < this.size - 1; i ++)
this.container[i] = this.container[i + 1];
this.container[this.position] = context.getImageData(0, 0, cWidth, cHeight);
if (enableAutoSave) {
var dt = new Date().getTime();
if (dt - lastAutoSave > 60000) {
picTransfer('toLS',true);
lastAutoSave = dt;
}
}
updateButtons();
}
//////////////////////////////////////////////////
var lastAutoSave = new Date().getTime(),
enableAutoSave = true;
var cWidth = 600,
cHeight = 360; //may be not so constant in future
//////////////////////////////////////////////////
var toolPresets = [
{"opacity" : 1.00, "width" : 4, "shadow" : 0, "color" : "0, 0, 0" } //Fore Default
, {"opacity" : 1.00, "width" : 20, "shadow" : 0, "color" : "255, 255, 255"} //Back Default
, {"opacity" : 1.00, "width" : 20, "shadow" : 0, "color" : "255, 255, 255"} //Eraser
, {"opacity" : 1.00, "width" : 1, "shadow" : 0, "color" : "0, 0, 0" } //Pencil
];
var tools = [
{"opacity" : 0, "width" : 0, "shadow" : 0, "color" : "0, 0, 0"},
{"opacity" : 0, "width" : 0, "shadow" : 0, "color" : "0, 0, 0"}
], tool = tools[0];
var toolLimits = {"opacity": [0.05, 1, 0.05], "width": [1, 128, 1], "shadow": [0, 20, 1], "turnLimit": [0, 180, 1]};
//////////////////////////////////////////////////
var modes = {
"tool-lowquality": false
, "tool-preview": false
, "tool-antialiasing": true
, "tool-smooth": false
, "tool-line": false
, "app-help": false
, "app-compatible": false
, "debug-mode": false
};
if (!!window.localStorage && !!window.localStorage.modes)
modes = JSON.parse(window.localStorage.modes);
var fps = 0,
ticks = 0,
fpsi = 0;
//////////////////////////////////////////////////
var paletteDesc = {"combo" : "Комбинированная", "safe" : "Web 216", "feijoa" : "Feijoa", "touhou" : "Тошки", "history" : "История"};
var palette = new Array(); //"@b" breaks the line, "@r" gives name to a new row
palette["combo"] = [
"@r", "Классическая", "#000000", "#000080", "#008000", "#008080", "#800000", "#800080", "#808000", "#c0c0c0"
, "@b", "@r", "", "#808080", "#0000ff", "#00ff00", "#00ffff", "#ff0000", "#ff00ff", "#ffff00", "#ffffff"
, "@b", "@r", "CGA", "#000", "#00a", "#0a0", "#0aa", "#a00", "#a0a", "#aa0", "#aaa"
, "@b", "@r", "", "#555", "#55f", "#5f5", "#5ff", "#f55", "#f5f", "#ff5", "#fff"
, "@b", "@r", "ЧБ", "#fff", "#eee", "#ddd", "#ccc", "#bbb", "#aaa", "#999", "#888",
, "@b", "@r", "", "#777", "#666", "#555", "#444", "#333", "#222", "#111", "#000"
, "@b", "@r", "Windows 7", "#000000", "#7f7f7f", "#880015", "#ed1c24", "#ff7f27", "#fff200", "#22b14c", "#00a2e8", "#3f48cc", "#a349a4"
, "@b", "@r", "", "#ffffff", "#c3c3c3", "#b97a57", "#ffaec9", "#ffc90e", "#efe4b0", "#b5e61d", "#99d9ea", "#7092be", "#c8bfe7"
];
palette["feijoa"] = [];
generatePalette("feijoa", 85, 0);
palette["safe"] = [];
generatePalette("safe", 51, 6);
palette["touhou"] = ["@c", "основной цвет", "вторичный цвет", "волосы", "глаза/аксессуары", "аксессуары"
, "@b", "@r", "Общее", "#fcefe2", "#000000"
, "@b", "@r", "Рейму", "#fa5946", "#ffffff", "#000000", "#e5ff41"
, "@b", "@r", "Мариса", "#000000", "#ffffff", "#fff87d", "#a864a8"
, "@b", "@r", "Сырно", "#1760f3", "#ffffff", "#97ddfd", "#fd3727", "#00d4ae"
, "@b", "@r", "Китай", "#a39942", "#ffffff", "#f37e75", "#82a6b6", "#4a4b4d"
, "@b", "@r", "Пачули", "#ffffff", "#af69B9", "#7f4787", "#f36470", "#fdff7b", "#807ffe"
, "@b", "@r", "Сакуя", "#ffffff", "#59428b", "#bcbccc", "#fe3030", "#00c2c6", "#585456"
, "@b", "@r", "Ремилия", "#ffffff", "#cf052f", "#cbc9fd", "#f22c42", "#f2dcc6", "#464646"
, "@b", "@r", "Фланя", "#ffffff", "#f52525", "#fff869", "#211930", "#56292c", "#6adc62", "#60d2d2", "#2f4dd6"
, "@b", "@r", "Алиса", "#ffffff", "#8787f7", "#fafab0", "#fabad2", "#888888"
, "@b", "@r", "Ёму", "#2c8e7d", "#382d3a", "#ffffff", "#004457"
, "@b", "@r", "Ююко", "#9eb2dc", "#ffffff", "#fba7b8", "#10009a", "#f60000"
, "@b", "@r", "Чен", "#fa5946", "#ffffff", "#6b473b", "#339886", "#464646", "#ffdb4f"
, "@b", "@r", "Ран", "#393c90", "#ffffff", "#ffff6e", "#c096c0"
, "@b", "@r", "Юкари", "#c096c0", "#ffffff", "#ffff6e", "#fa0000", "#464646"
, "@b", "@r", "Суйка", "#ffffff", "#6421a5", "#f3c183", "#90403d", "#eb3740", "#d9c39a"
, "@b", "@r", "Рейсен", "#000000", "#ffffff", "#dcc3ff", "#2e228c", "#e94b6d"
, "@b", "@r", "Эйрин", "#e12710", "#4c336a", "#ffffff"
, "@b", "@r", "Кагуя", "#fcabba", "#ed453c", "#2d2926", "#ffffff"
, "@b", "@r", "Моко", "#ffffff", "#da003a"
, "@b", "@r", "Ая", "#ffffff", "#f33f45", "#1b1b1b"
, "@b", "@r", "Юка", "#ec2c29", "#ffffff", "#64ad53", "#fff05f", "#ffe3e2"
, "@b", "@r", "Комачи", "#ffffff", "#257ed4", "#ed145b", "#4f352e", "#e7962d"
, "@b", "@r", "Шикиеки", "#ffffff", "#3a2430", "#26655a", "#432e71", "#a32139", "#ffe059"
, "@b", "@r", "Нитори", "#257dd3", "#0cb473", "#7ec8f9", "#312f83", "#ffffff", "#f1f62e", "#ad2032"
, "@b", "@r", "Сана" + "еэяѣ"[Math.floor(Math.random() * 4)], "#16168a", "#ffffff", "#13f356", "#9476f5", "#31cacc", "#e7962d"
, "@b", "@r", "Канако", "#fa5041", "#43334d", "#7360dd", "#ffffff", "#cda277"
, "@b", "@r", "Сувако", "#623fbd", "#ffffff", "#f6f3ac", "#bcb67a", "#ea0001", "#fbe4a1", "#000000"
, "@b", "@r", "Ику", "#000000", "#ffffff", "#5940c0", "#ee0501"
, "@b", "@r", "Тенши", "#ffffff", "#6dcef6", "#0073c1", "#f90b0b", "#405231", "#000000", "#f5d498", "#7cc074"
];
palette["history"] = (!!window.localStorage && !!window.localStorage.historyPalette) ? JSON.parse(window.localStorage.historyPalette) : [];
var currentPalette = (!!window.localStorage && !!window.localStorage.lastPalette) ? window.localStorage.lastPalette : "combo";
//////////////////////////////////////////////////
var hki = 0; //Hotkey interval for Opera
var hkPressed = false;
//KEY MODIFIERS
var CTRL = 0x0100,
SHIFT = 0x0200,
ALT = 0x0400;
META = 0x0800;
var kbLayout = {
"history-undo" : "Z".charCodeAt(0)
, "history-redo" : "X".charCodeAt(0)
, "history-store" : 119 //F8
, "history-extract" : 120 //F9
, "canva-fill" : "F".charCodeAt(0)
, "canva-delete" : "B".charCodeAt(0)
, "canva-invert" : "I".charCodeAt(0)
, "canva-jpeg" : CTRL + "J".charCodeAt(0)
, "canva-png" : CTRL + "P".charCodeAt(0)
, "canva-send" : CTRL + 13 //ENTER
, "tool-antialiasing" : CTRL + "A".charCodeAt(0)
, "tool-smooth" : CTRL + "K".charCodeAt(0)
, "tool-lowquality" : CTRL + "L".charCodeAt(0)
, "tool-preview" : "V".charCodeAt(0)
, "tool-colorpick" : "C".charCodeAt(0)
, "tool-swap" : "S".charCodeAt(0)
, "tool-pencil" : "P".charCodeAt(0)
, "tool-eraser" : "E".charCodeAt(0)
, "tool-line" : "L".charCodeAt(0)
, "tool-default" : "R".charCodeAt(0)
, "tool-width-" : "Q".charCodeAt(0)
, "tool-width+" : "W".charCodeAt(0)
, "tool-opacity-" : CTRL + "Q".charCodeAt(0)
, "tool-opacity+" : CTRL + "W".charCodeAt(0)
, "tool-shadow-" : SHIFT + "Q".charCodeAt(0)
, "tool-shadow+" : SHIFT + "W".charCodeAt(0)
, "app-help" : 112 //F1
, "app-compatible" : 114 //F3
, "app-settings" : 115 //F4
, "debug-mode" : 12 //CLEAR
};
kbLayout = (!!window.localStorage && !!window.localStorage.layout) ? JSON.parse(window.localStorage.layout) : kbLayout;
for (i = 1; i <= 10; i ++) {
kbLayout["tool-opacity." + i] = (i == 10 ? 0 : i) + 48 + CTRL;
kbLayout["tool-width." + i] = (i == 10 ? 0 : i) + 48;
}
var actLayout = {
"history-undo" : {"operation" : "history.undo()", "title" : "←", "small": "UNDO", "description" : "Назад"}
, "history-redo" : {"operation" : "history.redo()", "title" : "→", "small": "REDO", "description" : "Вперёд"}
, "history-store" : {"operation" : "picTransfer('toLS')", "title" : "⋁", "small": "STORE", "description" : "Сделать back-up", "once" : true}
, "history-extract" : {"operation" : "picTransfer('fromLS')","title" : "⋀", "small": "EXTRACT", "description" : "Извлечь back-up", "once" : true}
, "canva-fill" : {"operation" : "clearScreen(0)", "title" : "", "small": "FORE", "description" : "Закрасить полотно основным цветом", "once" : true}
, "canva-delete" : {"operation" : "clearScreen(1)", "title" : "", "small": "BACK", "description" : "Закрасить полотно фоновым цветом", "once" : true}
, "canva-invert" : {"operation" : "invertColors()", "title" : "◐", "small": "INVERT", "description" : "Инверсия полотна", "once" : true}
, "canva-jpeg" : {"operation" : "picTransfer('toJPG')", "title" : "", "small": "JPEG", "description" : "Сохранить в JPEG", "once" : true}
, "canva-png" : {"operation" : "picTransfer('toPNG')", "title" : "", "small": "PNG", "description" : "Сохранить в PNG", "once" : true}
, "canva-send" : {"operation" : "picTransfer('send')", "title" : "↵", "small": "SEND", "description" : "Отправить на сервер", "once" : true}
, "tool-antialiasing" : {"operation" : "switchMode('tool-antialiasing')", "title" : "⊡", "small": "AA", "description" : "Anti-Aliasing", "once" : true}
, "tool-preview" : {"operation" : "switchMode('tool-preview')", "title" : "●", "small": "PREVIEW", "description" : "Предпросмотр кисти", "once" : true}
, "tool-lowquality" : {"operation" : "switchMode('tool-lowquality')", "title" : "■", "small": "LOW Q", "description" : "Режим низкого качества", "once" : true}
, "tool-smooth" : {"operation" : "switchMode('tool-smooth')", "title" : "Ω", "small": "SMOOTH", "description" : "Режим сглаживания линии", "once" : true}
, "tool-line" : {"operation" : "switchMode('tool-line')", "title" : "—", "small": "LINE", "description" : "Режим прямых линий", "once" : true}
, "tool-colorpick" : {"operation" : "cCopyColor()"}
, "tool-swap" : {"operation" : "setTool('swap')", "title" : "↔", "small": "SWAP", "description" : "Поменять инструменты местами", "once" : true}
, "tool-eraser" : {"operation" : "setTool(2)", "title" : "◯", "small": "ERASER", "description" : "Заменить инструмент на стандартный ластик", "once" : true}
, "tool-pencil" : {"operation" : "setTool(3)", "title" : "i", "small": "PENCIL", "description" : "Заменить инструмент на стандартный карандаш", "once" : true}
, "tool-default" : {"operation" : "setTool('reset')", "title" : "⌀", "small": "RESET", "description" : "Восстановить значения по умолчанию", "once" : true}
, "tool-width-" : {"operation" : "toolModify(0, 'width', -1)", "title" : "-", "description" : "Уменьшить"}
, "tool-width+" : {"operation" : "toolModify(0, 'width', +1)", "title" : "+", "description" : "Увеличить"}
, "tool-opacity-" : {"operation" : "toolModify(0, 'opacity', -0.05)", "title" : "-", "description" : "Уменьшить"}
, "tool-opacity+" : {"operation" : "toolModify(0, 'opacity', +0.05)", "title" : "+", "description" : "Увеличить"}
, "tool-shadow-" : {"operation" : "toolModify(0, 'shadow', -1)", "title" : "-", "description" : "Уменьшить"}
, "tool-shadow+" : {"operation" : "toolModify(0, 'shadow', +1)", "title" : "+", "description" : "Увеличить"}
, "tool-width" : {"title" : "Толщина"}
, "tool-opacity" : {"title" : "Непрозрачность"}
, "tool-shadow" : {"title" : "Тень"}
, "tool-color" : {"title" : "Код цвета"}
, "tool-palette" : {"title" : "Палитра"}
, "app-compatible" : {"operation" : "switchMode('app-compatible')", "title" : "?", "small": "COMPAT", "description" : "Режим совместимости", "once" : true}
, "app-help" : {"operation" : "switchMode('app-help')", "title" : "?", "small": "HELP", "description" : "Помощь", "once" : true}
, "app-settings" : {"operation" : "alert('Not done yet.')", "title" : "☼", "small": "SETTINGS","description" : "Настройки","once" : true}
, "debug-mode" : {"operation" : "switchMode('debug-mode')"}
};
//List of buttons to display
var guiButtons = ["history-undo", "history-redo", "|", "canva-fill", "tool-swap", "canva-delete", "canva-invert", "|", "tool-default", "tool-pencil", "tool-eraser", "|",
"tool-line", "tool-preview", "tool-smooth", "tool-lowquality", "|",
"history-store", "history-extract", "canva-jpeg", "canva-png", sendButton ? "|" : "", sendButton ? "canva-send" : "", "|", "app-help"];
for (i = 1; i <= 10; i ++) {
actLayout["tool-opacity." + i] = {"operation" : "toolModify(0, 0, 0, " + (i / 10) + ")"};
actLayout["tool-width." + i] = {"operation" : "toolModify(0, 1, 0, " + Math.ceil(Math.pow(1.7, i-1)) + ")"};
}
var kbDesc = {
8 : "Backspace"
, 9 : "Tab"
, 12 : "Secret Key"
, 13 : "Enter"
, 45 : "Insert"
, 46 : "Delete"
, 186 : ";"
, 187 : "Plus"
, 189 : "Minus"
, 190 : "."
, 222 : "'"
}
for (i = 1; i <= 15; i ++) {
kbDesc[111 + i] = "F" + i;
}
document.addEventListener("DOMContentLoaded", init, false);
function init()
{
sketcher = document.getElementById("sketcher");
sendForm = document.createElement("form");
sendForm.method = "post";
sendForm.action = "";
sketcher.appendChild(sendForm);
canvas = document.createElement("canvas");
sketcher.appendChild(canvas);
cursor = new Cursor();
cursor.visual.addEventListener("mousedown", cDrawStart, false);
cursor.visual.addEventListener("mousemove", cDraw, false);
canvas.addEventListener("mousedown", cDrawStart, false);
canvas.addEventListener("mousemove", cDraw, false);
document.addEventListener("mouseup", cDrawEnd, false);
canvas.addEventListener("mouseout", cDraw, false);
canvas.addEventListener("mouseover", cDrawRestore, false);
document.addEventListener("mousemove", cursor.update, false);
document.addEventListener("keydown", cHotkeysStart, false);
document.addEventListener("keyup", cHotkeysEnd, false);
canvas.setAttribute("oncontextmenu", "return false;");
canvas.setAttribute("onscroll", "return false;");
cursor.visual.setAttribute("oncontextmenu", "return false;");
cursor.visual.setAttribute("onscroll", "return false;");
canvas.addEventListener("wheel", cLWChange, false);
canvas.addEventListener("mousewheel", cLWChange, false);
canvas.addEventListener("scroll", cLWChange, false);
cursor.visual.addEventListener("wheel", cLWChange, false);
cursor.visual.addEventListener("mousewheel", cLWChange, false);
cursor.visual.addEventListener("scroll", cLWChange, false);
canvas.width = cWidth;
canvas.height = cHeight;
context = canvas.getContext("2d");
context.fillStyle = "white";
context.fillRect(0, 0, cWidth, cHeight);
history = new History(32);
sideElem = document.createElement("span");
sideElem.id = "tools";
sketcher.appendChild(sideElem);
helpElem = document.createElement("span");
helpElem.id = "help";
sketcher.appendChild(helpElem);
helpElem.style.display = "none";
helpElem.innerHTML = "Управление:<br />\
Левая кнопка мыши — рисовать основным инструментом.<br />Правая кнопка мыши — рисовать вторичным инструментом.<br />\
Средняя кнопка мыши (или клавиша " + descKeyCode(kbLayout["tool-colorpick"]) + ") — выбор цвета из холста<br />\
Колёсико / " + descKeyCode(kbLayout["tool-width-"]) + " / " +
descKeyCode(kbLayout["tool-width+"]) + " / " +
descKeyCode(kbLayout["tool-width.10"]) + "—" + descKeyCode(kbLayout["tool-width.9"]) + " — изменение толщины.<br />\
Если зажать Ctrl или Shift, будет происхотить изменение прозрачности или тени соответственно.<br />\
Остальные хоткеи можно подсмотреть на соответствующих кнопках.<br />\
Курсор обязательно должен находиться над холстом!<br /><br />\
В поле код можно вводить цвета в трёх видах: «#xxxxxx», «#xxx», «d,d,d», где x — любая шестнадцатиречная цифра (0—f), d — десятеричное число в диапазоне от 0 до 255. Всё это в формате RGB.<br /><br />\
Feijoa Sketch " + infoVersion + " by Genius, " + infoDate;
var e = document.createElement("input"),
a = ["shadow", "opacity", "width"],
i = a.length;
while (i--) {
var et;
var rangeElemSupport = (e.type = "range") == e.type;
if (rangeElemSupport) {
et = document.createElement("input");
et.id = "tool-" + a[i];
et.type = "range";
et.value = tool[a[i]];
et.min = toolLimits[a[i]][0];
et.max = toolLimits[a[i]][1];
et.step = toolLimits[a[i]][2];
et.setAttribute("onchange", "updateSliders(1);");
sideElem.appendChild(et);
sliders[et.id] = et;
}
if (!rangeElemSupport)
setToolButton(a[i], "-");
et = document.createElement("input");
et.id = "tool-" + a[i] + "-text";
et.value = eval("tool." + a[i]);
et.type = "text";
et.setAttribute("onchange", "updateSliders(2);");
sideElem.appendChild(et);
sliders[et.id] = et;
if (!rangeElemSupport)
setToolButton(a[i], "+");
et = document.createElement("span");
et.innerHTML = " " + actLayout["tool-" + a[i]].title;
sideElem.appendChild(et);
sideElem.appendChild(document.createElement("br"));
};
e = document.createElement("span");
e.innerHTML = actLayout["tool-palette"].title + ": ";
sideElem.appendChild(e);
paletteSelect = document.createElement("select");
paletteSelect.id = "palette-select";
paletteSelect.setAttribute("onchange", "updatePalette();");
sideElem.appendChild(paletteSelect);
paletteElem = document.createElement("div");
paletteElem.id = "palette";
sideElem.appendChild(paletteElem);
for (tPalette in paletteDesc) {
paletteSelect.options[paletteSelect.options.length] = new Option(paletteDesc[tPalette], tPalette);
if (tPalette == currentPalette)
paletteSelect.options[paletteSelect.options.length - 1].selected = true;
}
e = document.createElement("span");
e.innerHTML = actLayout["tool-color"].title + ": ";
sideElem.appendChild(e);
colorCodeElem = document.createElement("input");
sideElem.appendChild(colorCodeElem);
colorCodeElem.type = "color"; //It's IE! I ain't gotta fix its shit. Blame MS right here.
colorCodeElem.id = "color";
colorCodeElem.setAttribute("onchange", "updateColor()");
bottomElem = document.createElement("div");
sketcher.appendChild(bottomElem);
for(i in guiButtons) {
var tElem = document.createElement("span");
if(guiButtons[i] != "")
if(guiButtons[i] != "|") {
tElem.id = guiButtons[i];
tElem.className = modes[guiButtons[i]] ? "button-active" : "button";
tElem.setAttribute("onclick", actLayout[guiButtons[i]].operation);
bottomElem.appendChild(tElem);
setElemDesc(guiButtons[i],null,true);
} else {
tElem.className = "vertical";
tElem.innerHTML = " ";
bottomElem.appendChild(tElem);
}
}
updateColor(tools[0].color, 0);
updateColor(tools[1].color, 1);
debugElem = document.createElement("div");
sketcher.appendChild(debugElem);
setTool('reset');
updateDebugScreen();
updatePalette();
updateButtons();
updateSliders();
}
function setToolButton(property, sign) {
var button = "tool-" + property + sign;
var et = document.createElement("span");
et.id = button;
et.className = "button button-mini";
et.innerHTML = actLayout[button].title;
et.setAttribute("onclick", actLayout[button].operation);
sideElem.appendChild(et);
setElemDesc(button);
}
function setElemDesc(elem, desc, info) {
info = info || false;
desc = desc || actLayout[elem].description;
var k = kbLayout[elem];
var tElem = document.getElementById(elem);
tElem.title = desc + ((kbLayout[elem] && !info) ? (" (" +
descKeyCode(k) + ")") : "");
if (info)
tElem.innerHTML = "<div class='hotkey'>" + (kbLayout[elem] ? descKeyCode(k) : " ") + "</div>"
+ (actLayout[elem].title || " ") + "<br />" +
"<span class='small'>" + (actLayout[elem].small || " ") + "</span>";
else
tElem.innerHTML = actLayout[elem].title;
}
function generatePalette(name, step, slice) { //safe palette generator, step recomended to be: 1, 3, 5, 15, 17, 51, 85, 255
var letters = [0, 0, 0];
while (letters[0]<=255 ) {
var l = palette[name].length;
palette[name][l] = "#";
for (var i = 0; i < 3; i++) {
var s = letters[i].toString(16);
if (s.length == 1)
s = "0" + s;
palette[name][l] += s;
}
letters[2] += step;
if (letters[2] > 255) {
letters[2] = 0;
letters[1] += step;
}
if (letters[1] > 255) {
letters[1] = 0;
letters[0] += step;
}
if (((letters[1] == step * slice) || letters[1] == 0) && letters[2] == 0)
palette[name][l+1] = "@b";
}
}
function updatePalette() {
currentPalette = paletteSelect.value;
if(!!window.localStorage) //ie-ie
window.localStorage.lastPalette = currentPalette;
while (paletteElem.childNodes.length) {
paletteElem.removeChild(paletteElem.childNodes[0])
}
var colCount = 0,
rowCount = 0;
var colDesc = new Array();
var paletteTable = document.createElement("table");
paletteElem.appendChild(paletteTable);
var paletteRow = document.createElement("tr");
var colorDesc = "";
for (tColor in palette[currentPalette]) {
var c = palette[currentPalette][tColor];
var paletteCell;
if (c == "@r") {
paletteCell = document.createElement("td");
paletteCell.innerHTML = palette[currentPalette][parseInt(tColor) + 1] + " ";
paletteRow.appendChild(paletteCell);
colCount = -2;
if(palette[currentPalette][parseInt(tColor) + 1] != "")
colorDesc = palette[currentPalette][parseInt(tColor) + 1];
}
if (c == "@c") {
rowCount = -1;
colCount = -1;
}
if (c == "@b") {
paletteTable.appendChild(paletteRow);
paletteRow = document.createElement("tr");
colCount = -1;
rowCount ++;
}
if (currentPalette == "history" && colCount == 16) {
paletteTable.appendChild(paletteRow);
paletteRow = document.createElement("tr");
colCount = 0;
}
if (rowCount == -1) {
if(colCount >= 0) {
colDesc[colCount] = c;
}
}
if (colCount >= 0 && rowCount >= 0) {
paletteCell = document.createElement("td");
var palettine = document.createElement("div");
palettine.className = "palettine";
palettine.title = palette[currentPalette][parseInt(tColor)] + (colorDesc != "" ? (" (" + colorDesc + (colDesc[colCount] ? (", " + colDesc[colCount]) : "" ) + ")") : "");
palettine.style.background = c;
palettine.setAttribute("onclick", "updateColor('" + c + "', 0);");
palettine.setAttribute("oncontextmenu", "updateColor('" + c + "', 1); return false;");
paletteCell.appendChild(palettine);
paletteRow.appendChild(paletteCell);
}
colCount ++;
}
paletteTable.appendChild(paletteRow);
}
function cDraw(event) {
cursor.update(event);
updateDebugScreen();
if ((cursor.flushNext || cursor.neverFlush) && !(modes["tool-lowquality"] && activeDrawing)) {
context.putImageData(history.current(), 0, 0);
}
if (activeDrawing) {
if (!modes["tool-line"]) {
var tX = cursor.prevX, tY = cursor.prevY;
cursor.prevX = modes["tool-smooth"] ? parseInt(cursor.posX * 0.08 + cursor.prevX * 0.92) : cursor.posX;
cursor.prevY = modes["tool-smooth"] ? parseInt(cursor.posY * 0.08 + cursor.prevY * 0.92) : cursor.posY;
}
if (!modes["tool-antialiasing"]) { //This probably would require massive optimization. Blame W3C.
while (1) {
for (i = 0; i < tool.width; i++) {
var rC = Math.sqrt(1 - Math.pow(-1 + (i + 0.5) / tool.width * 2, 2));
context.moveTo(parseInt(tX - tool.width * rC / 2 - 0.5) + globalOffs_1, tY + globalOffset - parseInt(tool.width / 2) + i);
context.lineTo(parseInt(tX + tool.width * rC / 2 - 0.5) - globalOffset, tY + globalOffset - parseInt(tool.width / 2) + i);
context.stroke();
}
tX = parseInt((pX + tX) / 2);
tY = parseInt((pY + tY) / 2);
break;
}
} else {
if(modes["tool-line"]) {
context.putImageData(history.current(), 0, 0);
context.beginPath();
context.moveTo(cursor.prevX + globalOffset, cursor.prevY + globalOffset);
context.lineTo(cursor.posX + globalOffset, cursor.posY + globalOffset);
context.stroke();
context.closePath();
} else {
context.lineTo(cursor.prevX + globalOffset, cursor.prevY + globalOffset);
context.stroke();
}
}
} else
if (cursor.neverFlush && !modes["tool-lowquality"])
cursor.draw();
}
function cDrawStart(event) {
cursor.prevX = cursor.posX;
cursor.prevY = cursor.posY;
cursor.update(event);
cursor.hide();
//canvas.focus();
event.preventDefault();
event.returnValue = false;
if (event.which == 2) {
cCopyColor();
} else
if (event.which == 1 || event.which == 3) {
event.stopPropagation();
event.cancelBubble = true;
var t = tools[(event.which == 1) ? 0 : 1];
context.putImageData(history.current(), 0, 0);
activeDrawing = true;
context.lineWidth = modes["tool-antialiasing"] ? t.width : 1;
context.shadowBlur = t.shadow;
context.strokeStyle = "rgba(" + t.color + ", " + t.opacity + ")";
if (context.shadowBlur == 0)
context.shadowColor = 'transparent';
else
context.shadowColor = "rgb(" + t.color + ")";
context.lineJoin = "round";
context.lineCap = "round";
context.beginPath();
if(modes["tool-antialiasing"]) {
context.moveTo(cursor.posX + globalOffset, cursor.posY + globalOffset);
context.lineTo(cursor.posX + globalOffs_1, cursor.posY + globalOffs_1);
context.stroke();
}
else
cDraw(event);
vX = cursor.posX;
vY = cursor.posY;
}
return false;
}
function cDrawEnd(event) {
//Saving in history:
if (activeDrawing) {
context.putImageData(history.current(), 0, 0);
context.stroke();
context.closePath();
history.push();
}
activeDrawing = false;
updateDebugScreen();
}
function cDrawRestore(event) {
if (activeDrawing)
context.moveTo(cursor.posX + globalOffset, cursor.posY + globalOffset);
cursor.update(event);
cursor.prevX = cursor.posX;
cursor.prevY = cursor.posY;
}
function cDrawCancel() {
if (activeDrawing) {
history.undo();
history.redo();
}
activeDrawing = false;
updateDebugScreen();
}
function cCopyColor() {
var rgba = history.current().data, i = (cursor.posX + cursor.posY * cWidth) * 4;
var hex = (rgba[i] * 65536 + rgba[i + 1] * 256 + rgba[i + 2]).toString(16);
while (hex.length < 6) {
hex = "0" + hex;
}
updateColor("#" + hex);
}
function cLWChange(event) {
var delta = event.deltaY || event.detail || event.wheelDelta;
event.preventDefault();
event.returnValue = false;
if (delta > 0) {
if (event.ctrlKey)
tool.opacity = (parseFloat(tool.opacity) - 0.05).toFixed(2);
else if (event.shiftKey)
tool.shadow --;
else
tool.width --;
}
if (delta < 0) {
if (event.ctrlKey)
tool.opacity = (parseFloat(tool.opacity) + 0.05).toFixed(2);
else if (event.shiftKey)
tool.shadow ++;
else
tool.width ++;
}
updateDebugScreen();
updateSliders();
}
function updateDebugScreen() {
if (modes["debug-mode"]) {
debugElem.innerHTML = "Cursor @" + cursor.posX + ":" + cursor.posY + "<br />Diff: " + (cursor.posX - cursor.prevX) + ":" + (cursor.posY - cursor.prevY) + "<br />FPS: " + fps + "<br />Ticks: " + ticks;
ticks ++;
}
}
function clearScreen(toolIndex) {
context.fillStyle = "rgb(" + tools[toolIndex].color + ")";
context.fillRect(0, 0, cWidth, cHeight);
history.push();
}
function invertColors() {
var buffer = history.current();
for (var i = 0; i < buffer.data.length; i += 4)
for (var j = 0; j < 3; j++)
buffer.data[i + j] = 255 - buffer.data[i + j];
context.putImageData(buffer, 0, 0);
history.push();
}
function updateSliders(initiator) {
var m = initiator || 0;
if (m > 0) {
var s = (m == 2 ? "-text" : "");
tool.shadow = document.getElementById("tool-shadow" + s).value;
tool.width = document.getElementById("tool-width" + s).value;
tool.opacity = document.getElementById("tool-opacity" + s).value;
}
if (tool.opacity <= toolLimits.opacity[0]) tool.opacity = toolLimits.opacity[0].toFixed(2); else
if (tool.opacity >= toolLimits.opacity[1]) tool.opacity = toolLimits.opacity[1].toFixed(2);
if (tool.width <= toolLimits.width[0]) tool.width = toolLimits.width[0]; else
if (tool.width >= toolLimits.width[1]) tool.width = toolLimits.width[1];
if (tool.shadow <= toolLimits.shadow[0]) tool.shadow = toolLimits.shadow[0]; else
if (tool.shadow >= toolLimits.shadow[1]) tool.shadow = toolLimits.shadow[1];
document.getElementById("tool-shadow-text").value = tool.shadow;
document.getElementById("tool-width-text").value = tool.width;
document.getElementById("tool-opacity-text").value = tool.opacity;
if (document.getElementById("tool-width")) {
document.getElementById("tool-shadow").value = tool.shadow;
document.getElementById("tool-width").value = tool.width;
document.getElementById("tool-opacity").value = tool.opacity;
}
cDrawEnd();
var w = Math.max(tool.width, tools[1].width) + Math.max(tool.shadow, tools[1].shadow) * 2.5 + 7;
context.putImageData(history.current(), 0, 0,
parseInt(cursor.posX) - w / 2, parseInt(cursor.posY) - w / 2, w, w);
cursor.draw();
}
function setTool(toolID) {
if(toolID >= 0) {
for (key in tool)
tool[key] = toolPresets[toolID][key];
}
else if (toolID == 'swap') {
var back = tools[0];
tool = tools[0] = tools[1];
tools[1] = back;
updateColor(0,1);
}
else if (toolID == 'reset') {
for (key in tool)
tool[key] = toolPresets[0][key];
for (key in tool)
tools[1][key] = toolPresets[1][key];
updateColor(tools[1].color, 1);
}
updateColor(tool.color);
updateSliders();
}
function updateColor(value, toolIndex) {
var t = tools[toolIndex || 0];
var c = colorCodeElem;
var v = value || c.value;
var regShort = /^#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])$/i;
var regLong = /^#[0-9a-fA-F]{6}$/i;
var regRGB = /^([0-9]{1,3}),\s*([0-9]{1,3}),\s*([0-9]{1,3})/;
if (regRGB.test(v))
{
var a = (t.color = v).split(new RegExp(",\s*"));
v = "#";
for (i in a) {
a[i] = Math.max(Math.min(parseInt(a[i]), 255), 0);
v += ((a[i] = parseInt(a[i]).toString(16)).length == 1) ? "0" + a[i] : a[i];
}
} else {
if (regShort.test(v))
v = v.replace(regShort, "#$1$1$2$2$3$3");
if (!regLong.test(v))
return;
if (value != "") {
t.color = parseInt(v.substr(1,2), 16) + ", "
+ parseInt(v.substr(3,2), 16) + ", "
+ parseInt(v.substr(5,2), 16);
}
}
if (t == tool) {
c.value = v;
}
document.getElementById((t == tool) ? "canva-fill" : "canva-delete").style.background = "rgb(" + t.color + ")";
//inverted color
var m = parseInt(v.substr(1), 16);
var b = parseInt(m / 65536) + parseInt(m / 256) % 256 + parseInt(m % 256);
document.getElementById((t == tool) ? "canva-fill" : "canva-delete").style.color = b > 380 ? "black" : "white";
//adding to history palette:
var found = palette["history"].length;
for (i = 0; i < found; i ++)
if (palette["history"][i] == v)
found = i;
for (i = Math.min(found, 64 - 1); i > 0; i --) //stores only limited count of specimens
palette["history"][i] = palette["history"][i - 1];
palette["history"][0] = v;
if (currentPalette == "history")
updatePalette();
if (!!window.localStorage)
window.localStorage.historyPalette = JSON.stringify(palette["history"]);
}
function updateButtons() {
setElemDesc("canva-jpeg", actLayout["canva-jpeg"].description + " (≈" + (canvas.toDataURL("image/jpeg").length / 1300).toFixed(0) + " kb)", "canva.jpeg");
setElemDesc("canva-png", actLayout["canva-png"].description + " (≈" + (canvas.toDataURL().length / 1300).toFixed(0) + " kb)", "canva.png");
document.getElementById("history-redo").className = (history.position == history.positionMax ? "button-disabled" : "button");
document.getElementById("history-undo").className = (history.position == 0 ? "button-disabled" : "button");
}
function cHotkeys(k) {
//if (hki != 0)
for (kbk in kbLayout) {
if (kbLayout[kbk] == k) {
eval(actLayout[kbk].operation);
if(!(actLayout[kbk].once || false)) {
hkPressed = true;
return true;
}
}
}
clearInterval(hki);
return false;
}
function cHotkeysStart(event) {
if (!hkPressed) {
var k = Math.min(event.keyCode, 255) //preventing from some bad things, that can happen
+ (event.ctrlKey ? CTRL : 0)
+ (event.shiftKey ? SHIFT : 0)
+ (event.altKey ? ALT : 0)
+ (event.metaKey ? META : 0)
if (cursor.posX >= 0 && cursor.posX < cWidth &&
cursor.posY >= 0 && cursor.posY < cHeight) {
event.preventDefault();
event.returnValue = false;
if (cHotkeys(k)) {
hki = setInterval("cHotkeys(" + k + ")", 100);
}
}
} else {
event.preventDefault();
event.returnValue = false;
}
}
function cHotkeysEnd(event) {
clearInterval(hki);
hkPressed = false;
event.preventDefault();
event.returnValue = false;
}
function toolModify(id, param, inc, value) {
if (param == "opacity")
tools[id].opacity = (inc == 0 ? value : (parseFloat(tools[id].opacity) + inc)).toFixed(2);
else