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webchemy.js
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webchemy.js
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/*
Webchemy - Alchemy for the web
Copyright (C) 2012 bitbof (http://bitbof.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/.
*/
/*
USES: filesaver.js - can be loaded later on
USING WEBCHEMY:
//add to page ... fullscreen
var wc = new Webchemy();
//get image or svg manually
var canvas = wc.getCanvas();
var svg = wc.getSVGString();
//add to page, not fullscreen
var wc = new Webchemy({target: someDiv, width: 800, height: 600});
//resize
wc.resize(500, 300);
Also if it runs on mobile, this makes sense: <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
*/
var Webchemy = (function () {
"use strict";
var UI = {}, LIB = {}, requestAnimFrame, global;
requestAnimFrame = (function () {
return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) {
window.setTimeout(callback, 1000 / 60);
};
}());
//a few "global" variables to manage fullscreen(on iPhone) and retina support
global = {
height: 0, //height of viewport/window
forceFS: true, //true - hide address bar on touch, false - do nothing
retina: false, //window.devicePixelRatio === 2 ? true : false //too slow on macbook pro and ipad 3rd gen
isTouchDevice: false
};
/*LIB.addCssRule(selector, declaration)
Add css rule(declaration) for a class, id, etc.(selector)
selector {
declaration
}
*/
LIB.addCssRule = (function () {
var style_node = document.createElement("style");
style_node.setAttribute("type", "text/css");
style_node.setAttribute("media", "screen");
document.getElementsByTagName("head")[0].appendChild(style_node);
return function (selector, declaration) {
var ua, isIE, last_style_node;
ua = navigator.userAgent.toLowerCase();
isIE = (navigator.appName === 'Microsoft Internet Explorer');
if (!isIE) {
style_node.appendChild(document.createTextNode(selector + " {" + declaration + "}"));
}
if (isIE && document.styleSheets && document.styleSheets.length > 0) {
last_style_node = document.styleSheets[document.styleSheets.length - 1];
last_style_node.addRule(selector, declaration);
}
};
}());
/*LIB.css(el, style)
Assign multiple style rules to one element. Automatically adds prefix for "transform", "transformOrigin",
"transition", and "boxSizing"
example:
LIB.css(someDiv, {
border: "1px solid #00f",
margin: "10px"
});
*/
LIB.css = function (el, style) {
var i;
for (i in style) {
if (style.hasOwnProperty(i)) {
if (i === "transform") {
el.style.WebkitTransform = style[i];
el.style.MozTransform = style[i];
el.style.OTransform = style[i];
el.style.msTransform = style[i];
} else if (i === "transformOrigin") {
el.style.WebkitTransformOrigin = style[i];
el.style.MozTransformOrigin = style[i];
el.style.OTransformOrigin = style[i];
el.style.msTransformOrigin = style[i];
} else if (i === "transition") {
el.style.WebkitTransition = style[i];
el.style.MozTransition = style[i];
el.style.OTransition = style[i];
el.style.msTransition = style[i];
} else if (i === "boxSizing") {
el.style.WebkitBoxSizing = style[i];
el.style.MozBoxSizing = style[i];
el.style.boxSizing = style[i]; //ie, opera
} else {
el.style[i] = style[i];
}
}
}
};
/*LIB.color
Basic color operations
c is either {r: (0-255), g: (0-255), b: (0-255)} or {h: (0-360), s: (0-100), v: (0-100)}
*/
LIB.color = {
rgbToHsv: function (c) {
var result, r, g, b, minVal, maxVal, delta, del_R, del_G, del_B;
result = {
h: 0,
s: 0,
v: 0
};
r = Math.max(0, Math.min(255, c.r)) / 255;
g = Math.max(0, Math.min(255, c.g)) / 255;
b = Math.max(0, Math.min(255, c.b)) / 255;
minVal = Math.min(r, g, b);
maxVal = Math.max(r, g, b);
delta = maxVal - minVal;
result.v = maxVal;
if (delta === 0) {
result.h = 0;
result.s = 0;
} else {
result.s = delta / maxVal;
del_R = (((maxVal - r) / 6) + (delta / 2)) / delta;
del_G = (((maxVal - g) / 6) + (delta / 2)) / delta;
del_B = (((maxVal - b) / 6) + (delta / 2)) / delta;
if (r === maxVal) {
result.h = del_B - del_G;
} else if (g === maxVal) {
result.h = (1 / 3) + del_R - del_B;
} else if (b === maxVal) {
result.h = (2 / 3) + del_G - del_R;
}
if (result.h < 0) {
result.h += 1;
}
if (result.h > 1) {
result.h -= 1;
}
}
result.h = Math.round(result.h * 360);
result.s = Math.round(result.s * 100);
result.v = Math.round(result.v * 100);
return result;
},
hsvToRgb: function (c) {
var result, h, s, v, var_h, var_i, var_1, var_2, var_3, var_r, var_g, var_b;
result = {
r: 0,
g: 0,
b: 0
};
h = Math.max(0, Math.min(360, c.h)) / 360;
s = Math.max(0.001, Math.min(100, c.s)) / 100; //bug if 0
v = Math.max(0, Math.min(100, c.v)) / 100;
if (s === 0) {
result.r = v * 255;
result.g = v * 255;
result.b = v * 255;
} else {
var_h = h * 6;
var_i = Math.floor(var_h);
var_1 = v * (1 - s);
var_2 = v * (1 - s * (var_h - var_i));
var_3 = v * (1 - s * (1 - (var_h - var_i)));
if (var_i === 0) {
var_r = v;
var_g = var_3;
var_b = var_1;
} else if (var_i === 1) {
var_r = var_2;
var_g = v;
var_b = var_1;
} else if (var_i === 2) {
var_r = var_1;
var_g = v;
var_b = var_3;
} else if (var_i === 3) {
var_r = var_1;
var_g = var_2;
var_b = v;
} else if (var_i === 4) {
var_r = var_3;
var_g = var_1;
var_b = v;
} else {
var_r = v;
var_g = var_1;
var_b = var_2;
}
result.r = var_r * 255;
result.g = var_g * 255;
result.b = var_b * 255;
result.r = Math.round(result.r);
result.g = Math.round(result.g);
result.b = Math.round(result.b);
}
return result;
},
rgbToHex: function (c) {
var ha, hb, hc;
ha = (parseInt(c.r, 10)).toString(16);
hb = (parseInt(c.g, 10)).toString(16);
hc = (parseInt(c.b, 10)).toString(16);
function fillUp(p) {
if (p.length === 1) {
p = "0" + p;
}
return p;
}
return "#" + fillUp(ha) + fillUp(hb) + fillUp(hc);
}
};
/*LIB.setAttributes(el, attributes)
set multiple attributes(array) for an element via setAttribute
*/
LIB.setAttributes = function (el, attr) {
var i = 0;
for (i = 0; i < attr.length; i += 1) {
el.setAttribute(attr[i][0], attr[i][1]);
}
};
/*LIB.getGlobalOff(el)
Returns offset({x: , y: }) of DOM element relative to the origin of the page
*/
LIB.getGlobalOff = function (el) {
var result, oElement;
result = {
x: 0,
y: 0
};
oElement = el;
while (oElement !== null) {
result.x += oElement.offsetLeft;
result.y += oElement.offsetTop;
oElement = oElement.offsetParent;
}
return result;
};
/*LIB.loadImageToDataURL(p)
p = {src: <string>, callback: <function(strDataURL)>}
Takes url of image and returns DataURL of that image via callback
*/
LIB.loadImageToDataURL = function (p) {
var src, im;
src = p.src;
im = new Image();
im.onload = function () {
var canvas = document.createElement("canvas");
canvas.width = im.width;
canvas.height = im.height;
canvas.getContext("2d").drawImage(im, 0, 0);
p.callback(canvas.toDataURL("image/png"));
};
im.src = src;
};
/*LIB.setClickListener(p)
Listens to mousedown and touchstart(quicker than onClick) and can spawn a glow effect for touch
p = {
el: <DOMElement> Listening element
glowPos: {x: , y: } Coordinates relative to element origin where glow effect should spawn on touch (optional)
callback: <function()> Called on click. Return value(boolean) determines if glow will be visible
}
*/
LIB.setClickListener = function (p) {
p.el.onmousedown = function () {
p.callback();
return false;
};
p.el.ontouchstart = function (event) {
var off;
if (event.touches.length !== 1) {
return false;
}
if (p.callback() !== false && p.glowPos) {
off = LIB.getGlobalOff(p.el);
UI.spawnGlow(off.x + p.glowPos.x, off.y + p.glowPos.y);
}
return false;
};
};
/*LIB.attachMouseListener(element, callback)
Sends all mouseevents(move, drag, down, release, touch, scrollwheel) back via callback on AnimationFrame.
What you get in the callback:
event = {
event: Original event
x: (0.0-1.0) Position inside element
y: (0.0-1.0) Position inside element
absX: Position in px, element is the origin
absY: Position in px, element is the origin
over: True on mouseover else undefined
out: True on mouseout else undefined
out: True on mousedown else undefined
code: Buttoncode
mode: True on mousemove else undefined
dragdone: True/false when dragging, else undefined
dX: Delta x since last event in px, ONLY when dragging
dY: Delta y since last event in px, ONLY when dragging
delta: +/-0 ScrollWheel
pageX: pageX from event only when dragging
pageY: pageY from event only when dragging
touch: True when using touch
pinch: { Touch input with 2 fingers -> pinch gesture
down: Started pinch gesture
dX: Delta x of center point between both fingers
dY: Delta y of center point between both fingers
absX: Position of center point in px, element is the origin
absY: Position of center point in px, element is the origin
dZoom: Change of the zoom factor since the pinch/zoom gesture started (initially 1)
}
}
*/
LIB.attachMouseListener = function (el, callback) {
var requested, inputData, wheel;
if (!el || !callback) {
return false;
}
requested = false;
inputData = [];
function handleInput() {
while (inputData.length > 0) {
callback(inputData.shift());
}
requested = false;
}
function push(p) {
inputData.push(p);
if (!requested) {
requestAnimFrame(handleInput);
requested = true;
}
}
function limit(val) {
return Math.max(0, Math.min(1, val));
}
el.onmouseover = function (event) {
var offset, x, y;
if (document.onmousemove) {
return false;
}
offset = LIB.getGlobalOff(el);
x = event.pageX - offset.x;
y = event.pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
over: true,
absX: x,
absY: y
});
return false;
};
el.onmouseout = function (event) {
var offset, x, y;
if (document.onmousemove) {
return false;
}
offset = LIB.getGlobalOff(el);
x = event.pageX - offset.x;
y = event.pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
out: true,
absX: x,
absY: y
});
return false;
};
el.onmousemove = function (event) {
var offset, x, y;
if (document.onmousemove) {
return false;
}
offset = LIB.getGlobalOff(el);
x = event.pageX - offset.x;
y = event.pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
move: true,
absX: x,
absY: y
});
return false;
};
el.onmousedown = function (event) {
var offset, x, y, lastX, lastY, buttoncode;
offset = LIB.getGlobalOff(el);
x = event.pageX - offset.x;
y = event.pageY - offset.y;
lastX = x;
lastY = y;
buttoncode = event.button;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: false,
absX: x,
absY: y,
code: buttoncode,
dX: 0,
dY: 0,
down: true
});
document.onmousemove = function (event) {
x = event.pageX - offset.x;
y = event.pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: false,
absX: x,
absY: y,
code: buttoncode,
dX: x - lastX,
dY: y - lastY,
pageX: event.pageX,
pageY: event.pageY
});
lastX = x;
lastY = y;
return false;
};
document.onmouseup = function (event) {
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: true,
absX: x,
absY: y,
code: buttoncode
});
document.onmousemove = undefined;
document.onmouseup = undefined;
return false;
};
return false;
};
function handlePinch(event) {
var offset, x, y, lastX, lastY, dist, initialDist;
offset = LIB.getGlobalOff(el);
x = 0.5 * (event.touches[0].pageX - offset.x + event.touches[1].pageX - offset.x);
y = 0.5 * (event.touches[0].pageY - offset.y + event.touches[1].pageY - offset.y);
lastX = x;
lastY = y;
dist = LIB.Vec2.dist({
x: event.touches[0].pageX,
y: event.touches[0].pageY
}, {
x: event.touches[1].pageX,
y: event.touches[1].pageY
});
initialDist = dist;
push({
event: event,
pinch: {
down: true,
absX: x,
absY: y
},
absX: event.touches[0].pageX - offset.x,
absY: event.touches[0].pageY - offset.y,
touch: true
});
document.ontouchmove = function (event) {
if (event.touches.length !== 2) {
return false;
}
x = 0.5 * (event.touches[0].pageX - offset.x + event.touches[1].pageX - offset.x);
y = 0.5 * (event.touches[0].pageY - offset.y + event.touches[1].pageY - offset.y);
dist = LIB.Vec2.dist({
x: event.touches[0].pageX,
y: event.touches[0].pageY
}, {
x: event.touches[1].pageX,
y: event.touches[1].pageY
});
push({
event: event,
pinch: {
dX: x - lastX,
dY: y - lastY,
absX: x,
absY: y,
dZoom: dist / initialDist
},
absX: event.touches[0].pageX - offset.x,
absY: event.touches[0].pageY - offset.y,
touch: true
});
lastX = x;
lastY = y;
return false;
};
}
el.ontouchstart = function (event) {
var offset, x, y, lastX, lastY;
if (event.touches.length === 2) {
handlePinch(event);
return false;
}
if (event.touches.length > 2) {
return false;
}
offset = LIB.getGlobalOff(el);
x = event.touches[0].pageX - offset.x;
y = event.touches[0].pageY - offset.y;
lastX = x;
lastY = y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: false,
absX: x,
absY: y,
code: 0,
down: true,
dX: 0,
dY: 0,
touch: true
});
document.ontouchmove = function (event) {
if (event.touches.length !== 1) {
return false;
}
x = event.touches[0].pageX - offset.x;
y = event.touches[0].pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: false,
absX: x,
absY: y,
code: 0,
dX: x - lastX,
dY: y - lastY,
touch: true
});
lastX = x;
lastY = y;
return false;
};
document.ontouchend = function (event) {
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
dragdone: true,
absX: x,
absY: y,
code: 0,
dX: x - lastX,
dY: y - lastY,
touch: true
});
document.ontouchmove = undefined;
document.ontouchend = undefined;
return false;
};
return false;
};
wheel = function (event) {
var delta, offset, x, y;
delta = 0;
if (!event) {
event = window.event;
}
if (event.wheelDelta) {
delta = event.wheelDelta / 120;
} else if (event.detail) {
delta = -event.detail / 3;
}
offset = LIB.getGlobalOff(el);
x = event.pageX - offset.x;
y = event.pageY - offset.y;
push({
event: event,
x: limit(x / el.offsetWidth),
y: limit(y / el.offsetHeight),
delta: delta,
absX: x,
absY: y
});
return false;
};
el.onmousewheel = wheel;
el.addEventListener('DOMMouseScroll', wheel, false);
return true;
};
/*LIB.CatmullLine()
Figures out additional control points that create a fairly smooth and natural line in real time(as you add points)
add(x, y) add a point
getPoints() returns you all points with additional control points between them like this:
[{x:, y: , c1: {x: , y: }, c2: {x: , y: }, c3: next}, next, ...]
*/
LIB.CatmullLine = function () {
var path, tension;
path = [];
tension = 1;
this.add = function (x, y) {
path.push({
x: x,
y: y
});
};
this.getPoints = function () {
var length, result, n, p1, p2, p3, p4;
length = path.length - 3;
if (length <= 0) {
return [];
}
result = [];
for (n = 0; n < path.length; n += 1) {
p1 = path[n];
p2 = path[Math.min(path.length - 1, n + 1)];
p3 = path[Math.min(path.length - 1, n + 2)];
p4 = path[Math.min(path.length - 1, n + 3)];
if (n === 0) {
result[n] = {
x: p2.x,
y: p2.y
};
}
result[n].c1 = {
x: p2.x + (tension * p3.x - tension * p1.x) / 6,
y: p2.y + (tension * p3.y - tension * p1.y) / 6
};
result[n].c2 = {
x: p3.x + (tension * p2.x - tension * p4.x) / 6,
y: p3.y + (tension * p2.y - tension * p4.y) / 6
};
result[n].c3 = {
x: p3.x,
y: p3.y
};
result[n + 1] = {
x: p3.x,
y: p3.y
};
}
return result;
};
};
/*LIB.drawPathOnCanvas(pathObject, context)
Draws a path string from svg onto a canvas via its context. Changes the
pathObject to store parsed drawing instructions for quicker drawing.
pathObject = {
d: <string> The path string from SVG
parsed: <string> Already parsed string(optional -> but will be written if not given)
}
Note: Some shapes cause hanging. Obviously the parsing isn't perfect.
*/
LIB.drawPathOnCanvas = function (pathObject, context) {
var path, lastpos, i, p, p1, p2, mode;
if (!pathObject.parsed) {
pathObject.parsed = pathObject.d.split(" ");
}
path = pathObject.parsed;
lastpos = [0, 0];
i = 0;
p = [0, 0]; //temp pos
context.beginPath();
while (i < path.length) {
if (path[i] === "m") {
p = path[i + 1].split(",");
lastpos[0] += parseFloat(p[0]);
lastpos[1] += parseFloat(p[1]);
context.moveTo(lastpos[0], lastpos[1]);
i += 2;
mode = undefined;
} else if (path[i] === "M") {
p = path[i + 1].split(",");
lastpos[0] = parseFloat(p[0]);
lastpos[1] = parseFloat(p[1]);
context.moveTo(lastpos[0], lastpos[1]);
i += 2;
mode = undefined;
} else if (path[i] === "c") {
mode = "curveRel";
i += 1;
} else if (path[i] === "l") {
mode = "linearRel";
i += 1;
} else if (path[i] === "C") {
mode = "curve";
i += 1;
} else if (path[i] === "L") {
mode = "linear";
i += 1;
} else if (path[i] === "z" || path[i] === "Z") {
context.closePath();
i += 1;
mode = undefined;
}
if (mode === "curveRel") {
p = path[i].split(",");
p1 = path[i + 1].split(",");
p2 = path[i + 2].split(",");
p[0] = lastpos[0] + parseFloat(p[0]);
p[1] = lastpos[1] + parseFloat(p[1]);
p1[0] = p[0] + parseFloat(p1[0]);
p1[1] = p[1] + parseFloat(p1[1]);
lastpos[0] = p1[0] + parseFloat(p2[0]);
lastpos[1] = p1[1] + parseFloat(p2[1]);
context.bezierCurveTo(p[0], p[1], p1[0], p1[1], lastpos[0], lastpos[1]);
i += 3;
} else if (mode === "linearRel") {
p = path[i].split(",");
lastpos[0] += parseFloat(p[0]);
lastpos[1] += parseFloat(p[1]);
context.lineTo(lastpos[0], lastpos[1]);
i += 1;
} else if (mode === "curve") {
p = path[i].split(",");
p1 = path[i + 1].split(",");
p2 = path[i + 2].split(",");
p[0] = parseFloat(p[0]);
p[1] = parseFloat(p[1]);
p1[0] = parseFloat(p1[0]);
p1[1] = parseFloat(p1[1]);
lastpos[0] = parseFloat(p2[0]);
lastpos[1] = parseFloat(p2[1]);
context.bezierCurveTo(p[0], p[1], p1[0], p1[1], lastpos[0], lastpos[1]);
i += 3;
} else if (mode === "linear") {
p = path[i].split(",");
lastpos[0] = parseFloat(p[0]);
lastpos[1] = parseFloat(p[1]);
context.lineTo(lastpos[0], lastpos[1]);
i += 1;
}
}
};
/*LIB.drawSVGToContext(p)
A non manual way of drawing SVG shapes onto a canvas. Should yield more accurate results since
the browser knows best how to draw SVG shapes.
Works with Chrome. Some issues with Firefox. Doesn't really work with other browsers yet.
Not sure how much overhead it causes(Blob, ObjectURL, Image,...).
I would prefer having this as part of the canvas API: context.drawSVG(svgString or svgElement, 0, 0);
p = {
width: <number> Width of the SVG viewport
height: <number> Height of the SVG viewport
defs: <string> Everything inside <defs>...</defs>
shapes: <string> Everything that follows <defs>
context: Context of the canvas you wish to draw on
callback: <function()> Gets called when the SVG is ready to be painted onto the canvas
}
*/
LIB.drawSVGToContext = function (p) {
var width, height, shapes, defs, context, callback, svgStart, svgString, DOMURL, blob, url, img;
width = p.width;
height = p.height;
shapes = p.shapes;
defs = p.defs;
context = p.context;
callback = p.callback;
svgStart = '<?xml version="1.0" encoding="UTF-8" standalone="no"?> \n' + '<svg \n' + 'xmlns:dc="http://purl.org/dc/elements/1.1/" \n' + 'xmlns:cc="http://creativecommons.org/ns#" \n' + 'xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" \n' + 'xmlns:svg="http://www.w3.org/2000/svg" \n' + 'xmlns="http://www.w3.org/2000/svg" \n' + 'xmlns:xlink="http://www.w3.org/1999/xlink" \n' + 'width="' + width + '" \n' + 'height="' + height + '" \n' + 'id="svg3112" \n' + 'version="1.1">';
svgString = svgStart + "<defs>" + defs + "</defs>" + shapes + "</svg>";
DOMURL = window.URL || window.webkitURL || window;
blob = new window.Blob([svgString], {
"type": "image/svg+xml;charset=utf-8"
});
url = DOMURL.createObjectURL(blob);
img = new Image();
img.onload = function () {
callback();
context.drawImage(img, 0, 0);
DOMURL.revokeObjectURL(url);
};
img.src = url;
};
/*LIB.Vec2
Basic vector operations. Parameters and results are usually {x: , y: }
*/
LIB.Vec2 = {
add: function (p1, p2) {
return {
x: p1.x + p2.x,
y: p1.y + p2.y
};
},
sub: function (p1, p2) {
return {
x: p1.x - p2.x,
y: p1.y - p2.y
};
},
nor: function (p) {
var len = Math.sqrt(Math.pow(p.x, 2) + Math.pow(p.y, 2));
if (len === 0) {
return {
x: 0,
y: 0
};
}
return {
x: p.x / len,
y: p.y / len
};
},
len: function (p) {
return Math.sqrt(Math.pow(p.x, 2) + Math.pow(p.y, 2));
},
dist: function (p1, p2) {
return LIB.Vec2.len(LIB.Vec2.sub(p1, p2));
},
mul: function (p, s) {
return {
x: p.x * s,
y: p.y * s
};
}
};
/*UI.theme
Defining grid size, colors, tile coordinates, etc. for all the UI elements
*/
UI.theme = {
halfBoxSize: 22,
barCol: "#666",
expandCol: "#444",
bgCol: "#444",
textColor: "#fff",
labelColor: "#ccc",
linkColor: "#83d1e9",
linkHoverColor: "#b2edff",
opacityOff: 0.4,
buttonSVG: "icons.svg",
svgGrid: [ //name, i, e
["btn_undo.svg", 0, 0],
["btn_redo.svg", 1, 0],
["btn_hand.svg", 2, 0],
["btn_zoomIn.svg", 3, 0],
["btn_zoomOut.svg", 4, 0],
["btn_resetView.svg", 5, 0],
["btn_help.svg", 6, 0],
["btn_brushFill.svg", 6, 1],
["btn_brushStroke.svg", 0, 2],
["btn_more.svg", 2, 2],
["btn_export.svg", 4, 2],
["btn_fill.svg", 5, 2],
["btn_stroke.svg", 6, 2],
["btn_pull.svg", 5, 1],
["btn_gradientUp.svg", 0, 1],
["btn_flipHor.svg", 1, 1],
["btn_flipVert.svg", 2, 1],
["btn_splat.svg", 4, 1],
["btn_picker.svg", 0, 3],
["btn_swatch.svg", 1, 3],
["btn_colSlider.svg", 2, 3],
["btn_previous.svg", 3, 3],
["btn_next.svg", 4, 3]
]
};
/*UI.spawnGlow(x, y, parent)
Animates a glow effect, useful for touch events (good visual feedback). The effect div
will be automatically disposed.
x, y - absolute coordinates where it should be placed
parent - parent of the glow effect div
*/
UI.spawnGlow = (function () {
//preload glowing effect
var imCount, imArr;
imCount = 0;
imArr = [];
imArr[0] = new Image();
imArr[0].src = "glow.png";
imArr[1] = new Image();
imArr[1].src = "glow.png";
imArr[2] = new Image();
imArr[2].src = "glow.png";
return function (x, y, parent) {
var glow, prnt;
glow = imArr[imCount];
LIB.css(glow, {
position: "absolute",
left: (x - 64) + "px",
top: (y - 64) + "px",
width: "128px",
height: "128px",
transition: "opacity 0.2s linear",
pointerEvents: "none",
opacity: 1
});
prnt = document.body;
if (parent) {
prnt = parent;
}
prnt.appendChild(glow);
setTimeout(function () {
LIB.css(glow, {
opacity: "0"
});
setTimeout(function () {
prnt.removeChild(glow);
}, 200);
}, 30);
imCount = (imCount + 1) % imArr.length;
};
}());
/*UI.spawnMessage(msg, parent)
Creates a bar (within the parent) that comes down from the top with a message, and stays there until you
remove it.
msg - message to be displayed
parent - parent of div containing message
Returns function you need to call in order to remove the bar/message
*/
UI.spawnMessage = (function () {
return function (msg, parent) {
var div, bar, prnt, removed;
div = document.createElement("div");
bar = document.createElement("div");
LIB.css(div, {
position: "absolute",
left: 0,
top: 0,
width: "100%",
pointerEvents: "none"
});
LIB.css(bar, {
marginLeft: "auto",
marginRight: "auto",
width: (UI.theme.halfBoxSize * 2 * 7) + "px",
height: (UI.theme.halfBoxSize * 2) + "px",
background: "rgba(0, 0, 0, 0.5)",
transition: "margin 0.1s ease-out",
marginTop: (-UI.theme.halfBoxSize * 2) + "px",
opacity: 0.8,
fontWeight: "bold",
textAlign: "center",
borderBottomRightRadius: (UI.theme.halfBoxSize / 3) + "px",
borderBottomLeftRadius: (UI.theme.halfBoxSize / 3) + "px",
color: "#fff",
fontFamily: "arial",
fontSize: (UI.theme.halfBoxSize * 2 / 3.0) + "px",
lineHeight: (UI.theme.halfBoxSize * 2) + "px"
});
bar.innerHTML = msg;
div.appendChild(bar);
prnt = document.body;
if (parent) {
prnt = parent;
}
removed = false;
prnt.appendChild(div);
setTimeout(function () {
LIB.css(bar, {
marginTop: 0
});
}, 10);
return function () {
if (!removed) {
removed = true;
prnt.removeChild(div);
}
};
};
}());
/*UI.Button(p)
Basic button
P = {
im: <string> Icon from UI.theme.svgGrid. Example: "btn_clear.svg"
text: <string> The alternative to an image
title: <string> Title attribute (tooltip on hover)
animated: <boolean>, Animates on pressing
disabled: <boolean>, Disable/enable button
touchGlow: <boolean>, Glow effect on touch