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<html>
<title>Cutting Board Designer JS</title>
<!--
This is CBJS, an aid in designing cutting boards.
Copyright (C) 2013,2021 Eric Uhrhane
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 2
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.
If you don't have a copy of the license and need one, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth
Floor, Boston, MA 02110-1301, USA.
-->
<head>
</head>
<body>
<style>
table { border-spacing: 0; border: 1px solid }
th,td { border-style: solid; border: 1px solid }
td.action {
border: 0px none;
border-bottom: 1px solid;
border-top: 1px solid;
border-right: 1px solid;
}
</style>
<div style="display: flex; flex-flow: row wrap;">
<div style="display: inline; float: left">
<div style="display: block; float: left; padding: 4px">
<div style="display: inline-block; float:left;">
<div style="display: block;">
<input type="number" min="0" value=20 id="SBL" style="width: 50px;"
class="export" onchange="recalculate()">
Source boards length</input></div>
<div style="display: block;">
<input type="number" min="0" value=1.2 id="SBT"
style="width: 50px;" class="export"
onchange="recalculate()">Source board thickness</input></div>
<div style="display: block;">
<input type="number" min="0" value=1.5 id="OBT"
style="width: 50px;" class="export"
onchange="recalculate()">End-grain board thickness</input></div>
<div style="display: block;">
<input type="number" min="0" value=.125 step=0.025 id="BK"
style="width: 50px;" class="export"
onchange="recalculate()">Blade kerf</input></div>
<div style="display: block;">
<input type=checkbox id="FEO" onchange="recalculate()" class="export">
Flip every other layer</input></div>
<div style="display: block;">
<input type=checkbox checked id="REO" onchange="recalculate()"
class="export">
Rotate every other layer</input></div>
<div style="display: block;">
<input type=checkbox id="SO" onchange="recalculate()" class="export">
Show black outlines.</input></div>
</div>
<div style="display: inline-block; float:left; padding: 4px;">
<table id="WOOD_INFO" style="display: block; border: none;">
<thead>
<tr><th>Name</th><th>Color</th></tr>
</thead>
<tbody id="WOOD_INFO_BODY">
</tbody>
</table>
<button type=button style="display: block"
onclick="addDefaultWood()">Add Wood</button>
</div>
<div style="display: inline-block; float:left; padding: 4px;">
<div style="display: block;">
Edge-grain board length:
<span id="OUTPUT_EDGE_BOARD_LENGTH">0</span></div>
<div style="display: block;">
End-grain board length:
<span id="OUTPUT_END_BOARD_LENGTH">0</span></div>
<div style="display: block;">
End- or edge-grain board width:
<span id="OUTPUT_BOARD_WIDTH">0</span></div>
<div style="display: block;">
End-grain slices:
<span id="OUTPUT_SLICES">0</span></div>
<div style="display: block;">
End-grain fractional length left over:
<span id="OUTPUT_LEFT_OVER">0</span></div>
<div style="display: block;">
Wood used:
<ul id="OUTPUT_WOOD_USED"></ul></div>
<div style="display: block;">
<button type=button onclick="getURL()" style="display:block;">
Get this design as an URL for bookmarking.</button>
<span id="OUTPUT_URL" style="display:block;"></span></div>
</div>
</div>
<div style="clear: left;">
<table id="LAYER_INFO" style="display: block; border: none;">
<thead>
<tr><th>Wood</th><th>Width</th><th>Trailing Angle</th></tr>
</thead>
<tbody id="LAYER_INFO_BODY">
</tbody>
</table>
<button type=button style="display: inline-block"
onclick="addDefaultLayer()">Add layer</button>
<button type=button style="display: inline-block"
onclick="clearAllLayers()">Clear all layers</button>
</div>
</div>
<div style="display: flex; padding: 4px; flex-flow: row wrap; flex: 1">
<div style="width: 305;">
<div style="display: block; width: 300; text-align: center; padding: 3px;">Edge-grain board</div>
<svg xmlns="http://www.w3.org/2000/svg"
style="display: block; width: 300; height: 300; transform: rotate(90deg)">
<g id="EDGE_GRAIN_G"></g>
</svg>
</div>
<div style="width: 305;">
<div style="display: block; width: 300; text-align: center; padding: 3px;">End-grain board</div>
<svg xmlns="http://www.w3.org/2000/svg"
style="display: block; width: 300; height: 300; transform: rotate(90deg)">
<g id="END_GRAIN_G"></g>
</svg>
</div>
</div>
</div>
<div style="display: flex; flex-direction: column">
Example designs:
<ul>
<li>
<a href="?v=2.1.0.3&SBL=13&SBT=1.2&OBT=1.5&BK=.125&FEO=0&REO=1&SO=0&w=6f0011,Cherry|292117,Ebony|b56816,Jatoba|fde96d,Maple|af0b7b,Purpleheart|4b351a,Walnut&l=5,1,0|3,1,0|5,1,0|3,1,0|5,1,0|3,1,0|5,1,0|3,1,0">Simple checkerboard</a>
</li>
<li>
<a href="?v=2.1.0.3&SBL=20&SBT=1.2&OBT=1.5&BK=.125&FEO=0&REO=1&SO=0&w=6f0011,Cherry|292117,Ebony|b56816,Jatoba|fde96d,Maple|af0b7b,Purpleheart|4b351a,Walnut&l=5,1,0|3,0.25,0|5,0.25,0|3,0.25,0|5,1,0|1,0.5,0|3,1,0|5,0.25,0|3,0.25,0|5,0.25,0|3,1,0">Complex checkerboard</a>
</li>
<li>
<a href="?v=2.1.0.3&SBL=20&SBT=1.2&OBT=1.5&BK=.125&FEO=1&REO=0&SO=0&w=6f0011,Cherry|292117,Ebony|b56816,Jatoba|fde96d,Maple|af0b7b,Purpleheart|4b351a,Walnut&l=5,1,0|3,1.25,45|0,2,45|3,2,0|5,1,0">Zig-zag</a>
</li>
<li>
<a href="?v=2.1.0.3&SBL=20&SBT=1.2&OBT=1.5&BK=.125&FEO=0&REO=1&SO=0&w=6f0011,Cherry|292117,Ebony|b56816,Jatoba|fde96d,Maple|af0b7b,Purpleheart|4b351a,Walnut&l=3,1.25,45|4,2,45|1,3,-45|3,1.25,0">Spiral</a>
</li>
<li>
<a href="?v=2.1.0.3&SBL=20&SBT=1.2&OBT=1.5&BK=.125&FEO=1&REO=0&SO=0&w=6f0011,Cherry|292117,Ebony|b56816,Jatoba|fde96d,Maple|af0b7b,Purpleheart|4b351a,Walnut&l=3,1.25,45|2,2,45|1,3,-45|2,2,-45|3,1.25,0">Snake skin</a>
</li>
</ul>
</div>
<div style="display: block; float: left; padding: 4px">
This is Cutting Board Designer JS version <span id="VERSION_DISPLAY"></span>.
Here's a link to the <a href="https://ericu.github.io/CBDJS/cb.html">latest
version</a> and <a href="https://github.com/ericu/CBDJS/">git repo</a>.
</div>
<!--
<button type=button style="display: inline-block; float: bottom"
onclick="recalculate()">Recalculate</button>
-->
<script>
// TODO: Allow multiple layer templates [multiple panels, in the terminology of
// "Cutting Board Designer"]. If > 2, what about multiple orders?
// TODO: Allow manual rotate/flip of individual layers.
var assertFailed = false;
function assert(t) {
//console.assert(t);
if (!t && !assertFailed) {
assertFailed = true;
throw new Error("Assertion failed.");
}
}
function LayerInfo(woodIndex, width, trailingAngle) {
this.woodIndex = woodIndex;
this.width = width;
// Don't allow on last entry; use previous layerInfo for leadingAngle.
this.trailingAngle = trailingAngle;
}
function WoodInfo(color, name) {
this.color = color;
this.name = name;
}
var VERSION = "2.1.0.3";
var DEFAULT_WOODS = [
new WoodInfo("#6F0011", "Cherry"),
new WoodInfo("#292117", "Ebony"),
new WoodInfo("#B56816", "Jatoba"),
new WoodInfo("#FDE96D", "Maple"),
new WoodInfo("#AF0B7B", "Purpleheart"),
new WoodInfo("#4B351A", "Walnut"),
];
var SCALE = 20;
var sampleSourceThickness = 1.2;
var SAMPLE_LAYERS = [
new LayerInfo(5, 1, 0),
new LayerInfo(3, .25, 0),
new LayerInfo(5, .25, 0),
new LayerInfo(3, .25, 0),
new LayerInfo(5, 1, 0),
new LayerInfo(1, 0.5, 0),
new LayerInfo(3, 1, 0),
new LayerInfo(5, .25, 0),
new LayerInfo(3, .25, 0),
new LayerInfo(5, .25, 0),
new LayerInfo(3, 1, 0),
];
function drawLayer(g, points, color, showOutlines) {
var poly = document.createElementNS("http://www.w3.org/2000/svg", 'polygon');
poly.setAttribute('points', points);
if (showOutlines) {
poly.setAttribute('stroke', 'black');
}
poly.setAttribute('fill', color);
g.appendChild(poly);
}
function generateWoodList(woods) {
var sel = document.createElement('select');
sel.className = "WOOD_LIST_CLASS";
for (var i = 0; i < woods.length; ++i) {
var option = document.createElement('option');
option.value = i;
option.innerHTML = woods[i].name;
sel.appendChild(option);
}
return sel;
}
// Remember to clone this when using it!
function getWoodList() {
if (!WOOD_LIST) {
WOOD_LIST = generateWoodList(getAllWoodInfos());
}
return WOOD_LIST;
}
function canRemoveWood(index) {
var selections = document.getElementsByClassName("WOOD_LIST_CLASS");
// Copy selections to an immutable array.
selections = Array.prototype.slice.call(selections);
for (var i = 0; i < selections.length; ++i) {
if (parseInt(selections[i].value) == index) {
alert("That wood is in use at layer " + (i + 1) + ".");
return false;
}
}
return true;
}
function removeWoodFromLists(index) {
var woodList = getWoodList();
var selections = document.getElementsByClassName("WOOD_LIST_CLASS");
// Copy selections to an immutable array.
selections = Array.prototype.slice.call(selections);
for (var i = 0; i < selections.length; ++i) {
var sel = selections[i];
var value = parseInt(sel.value);
if (value >= index) { // = because we've already removed the wood.
--value;
}
var newSel = woodList.cloneNode(true);
newSel.value = "" + value;
sel.parentNode.replaceChild(newSel, sel);
}
}
function renameWood(index, name) {
WOOD_LIST = null;
var selections = document.getElementsByClassName("WOOD_LIST_CLASS");
for (var i = 0; i < selections.length; ++i) {
selections[i].childNodes[index].innerHTML = name;
}
}
function addWoodToLists(name, index) {
WOOD_LIST = null;
var selections = document.getElementsByClassName("WOOD_LIST_CLASS");
var option = document.createElement('option');
option.value = index;
option.innerHTML = name;
for (var i = 0; i < selections.length; ++i) {
selections[i].appendChild(option.cloneNode(true));
}
return true;
}
function extractLayerInfoFromDOMElement(tr) {
var woodIndex = parseInt(tr.childNodes[0].firstChild.value);
var width = parseFloat(tr.childNodes[1].firstChild.value);
var trailingAngle = parseFloat(tr.childNodes[2].firstChild.value);
return new LayerInfo(woodIndex, width, trailingAngle);
}
function getAllLayerInfos() {
var tbody = document.getElementById('LAYER_INFO_BODY');
var infos = [];
for (var i = 0; i < tbody.childNodes.length; ++i) {
cur = tbody.childNodes[i];
if (cur.tagName && cur.tagName.toLowerCase() == 'tr') {
infos.push(extractLayerInfoFromDOMElement(cur));
}
}
return infos;
}
function extractWoodInfoFromDOMElement(tr) {
var name = tr.childNodes[0].firstChild.value;
var color = tr.childNodes[1].firstChild.value;
return new WoodInfo(color, name);
}
function getAllWoodInfos() {
var tbody = document.getElementById('WOOD_INFO_BODY');
var infos = [];
for (var i = 0; i < tbody.childNodes.length; ++i) {
cur = tbody.childNodes[i];
if (cur.tagName && cur.tagName.toLowerCase() == 'tr') {
infos.push(extractWoodInfoFromDOMElement(cur));
}
}
return infos;
}
function addDefaultLayer() {
addLayerToDOM(0, 1, 0);
}
function clearAllLayers() {
pushNoRecalculate();
try {
var body = document.getElementById("LAYER_INFO_BODY");
body.parentNode.replaceChild(body.cloneNode(false), body);
} finally {
popNoRecalculate();
}
}
function addDefaultWood() {
addWoodToDOM("New Wood", "#808080");
}
var numWoods = 0;
var WOOD_LIST = null;
function addWoodToDOM(name, color) {
function getWoodIndex(tr) {
var woodIndex = 0;
var table = tr.parentNode;
var child = table.firstChild;
while (child != tr) {
if (child && child.tagName &&
child.tagName.toLowerCase() == 'tr') {
++woodIndex;
}
child = child.nextSibling;
}
assert(woodIndex < table.childNodes.length);
return woodIndex;
}
function removeHandler(event) {
var tr = event.target.parentNode.parentNode;
var table = tr.parentNode;
var woodIndex = getWoodIndex(tr);
if (canRemoveWood(woodIndex)) {
WOOD_LIST = null;
table.removeChild(tr);
--numWoods;
removeWoodFromLists(woodIndex);
}
}
function colorChangeHandler(event) {
suggestRecalc();
}
function renameHandler(event) {
var tr = event.target.parentNode.parentNode;
var woodIndex = getWoodIndex(tr);
WOOD_LIST = null;
renameWood(woodIndex, event.target.value);
}
var newRow = document.createElement('tr');
var td = document.createElement('td');
var field = document.createElement('input');
field.type = 'text';
field.value = name;
field.addEventListener('change', renameHandler);
td.appendChild(field);
newRow.appendChild(td);
td = document.createElement('td');
field = document.createElement('input');
field.type = 'color';
field.value = color;
field.style.width = "100px"
field.addEventListener('change', colorChangeHandler);
td.appendChild(field);
newRow.appendChild(td);
td = document.createElement('td');
td.className = "action";
var button = document.createElement('button');
button.innerHTML = "Remove";
button.type = "button";
button.addEventListener('click', removeHandler);
td.appendChild(button);
newRow.appendChild(td);
var body = document.getElementById("WOOD_INFO_BODY");
body.appendChild(newRow);
WOOD_LIST = null;
addWoodToLists(name, numWoods++);
}
// Really only needed as such for bookmarking, but it's good as a DOM
// manipulation scratchpad.
function addLayerToDOM(woodIndex, width, trailingAngle, position) {
pushNoRecalculate();
try {
function removeHandler(event) {
pushNoRecalculate();
try {
var tr = event.target.parentNode.parentNode;
var table = tr.parentNode;
table.removeChild(tr);
} finally {
popNoRecalculate();
}
}
function insertHandler(event) {
pushNoRecalculate();
try {
var tr = event.target.parentNode.parentNode;
addLayerToDOM(0, 1, 0, tr);
} finally {
popNoRecalculate();
}
}
function moveUpHandler(event) {
pushNoRecalculate();
try {
var tr = event.target.parentNode.parentNode;
var table = tr.parentNode;
if (tr.previousSibling && tr.previousSibling.tagName &&
tr.previousSibling.tagName.toLowerCase() == 'tr') {
table.insertBefore(tr, tr.previousSibling);
}
} finally {
popNoRecalculate();
}
}
function changeHandler(event) {
suggestRecalc();
}
function moveDownHandler(event) {
pushNoRecalculate();
try {
var tr = event.target.parentNode.parentNode;
var table = tr.parentNode;
if (tr.nextSibling && tr.nextSibling.tagName.toLowerCase() == 'tr') {
table.insertBefore(tr.nextSibling, tr);
}
} finally {
popNoRecalculate();
}
}
var newRow = document.createElement('tr');
var td = document.createElement('td');
var list = getWoodList().cloneNode(true);
list.value = woodIndex;
list.addEventListener('change', changeHandler);
td.appendChild(list);
newRow.appendChild(td);
td = document.createElement('td');
var field = document.createElement('input');
field.type = 'number';
field.value = width;
field.step = 0.25;
field.min = 0;
field.style.width = "75px";
field.addEventListener('change', changeHandler);
td.appendChild(field);
newRow.appendChild(td);
td = document.createElement('td');
field = document.createElement('input');
field.type = 'number';
field.value = trailingAngle;
field.step = 1;
field.min = -89;
field.max = 89;
field.style.width = "75px";
field.addEventListener('change', changeHandler);
td.appendChild(field);
newRow.appendChild(td);
td = document.createElement('td');
td.className = "action";
var button = document.createElement('button');
button.innerHTML = "Remove";
button.type = "button";
button.addEventListener('click', removeHandler);
td.appendChild(button);
newRow.appendChild(td);
td = document.createElement('td');
td.className = "action";
button = document.createElement('button');
button.innerHTML = "Insert Layer";
button.type = "button";
button.addEventListener('click', insertHandler);
td.appendChild(button);
newRow.appendChild(td);
td = document.createElement('td');
td.className = "action";
button = document.createElement('button');
button.innerHTML = "Move Up";
button.type = "button";
button.addEventListener('click', moveUpHandler);
td.appendChild(button);
newRow.appendChild(td);
td = document.createElement('td');
td.className = "action";
button = document.createElement('button');
button.innerHTML = "Move Down";
button.type = "button";
button.addEventListener('click', moveDownHandler);
td.appendChild(button);
newRow.appendChild(td);
var body = document.getElementById("LAYER_INFO_BODY");
if (body.hasChildNodes()) {
if (position) {
body.insertBefore(newRow, position);
} else { // Assume number.
body.appendChild(newRow);
}
} else {
body.appendChild(newRow);
}
} finally {
popNoRecalculate();
}
}
function clearDrawing() {
var svgG = document.getElementById('END_GRAIN_G');
svgG.parentNode.replaceChild(svgG.cloneNode(false), svgG);
svgG = document.getElementById('EDGE_GRAIN_G');
svgG.parentNode.replaceChild(svgG.cloneNode(false), svgG);
}
function outputWoodUsed(woodUsed, woodInfos) {
var ul = document.getElementById("OUTPUT_WOOD_USED");
ul.parentNode.replaceChild(ul.cloneNode(false), ul);
ul = document.getElementById("OUTPUT_WOOD_USED");
for (var i in woodUsed) {
var li = document.createElement('li');
var wu = woodUsed[i];
li.innerHTML = woodInfos[i].name + ': ' + wu.used.toPrecision(4) +
" (" + wu.wasted.toFixed(3) + " lost to kerf or scraps).";
ul.appendChild(li);
}
}
// Draw each layer, flipping as appropriate, and taking into account diagonal
// cuts.
function drawLayers(layerInfos, woodInfos) {
clearDrawing();
if (!layerInfos.length) {
return;
}
var sourceLength =
parseFloat(document.getElementById("SBL").value);
var sourceThickness =
parseFloat(document.getElementById("SBT").value);
var endgrainThickness =
parseFloat(document.getElementById("OBT").value);
var kerf = parseFloat(document.getElementById("BK").value);
var showOutlines = document.getElementById("SO").checked;
var scaledEdgeGrainLength = sourceLength * SCALE;
// This counts one extra kerf; the following if fixes it if relevant.
var endgrainLayers = Math.floor(sourceLength / (endgrainThickness + kerf));
if (endgrainThickness * (endgrainLayers + 1) + endgrainLayers * kerf
<= sourceLength) {
++endgrainLayers;
}
var endgrainLength = endgrainLayers * sourceThickness;
var endgrainLeftover = sourceLength -
(endgrainLayers * endgrainThickness + (endgrainLayers - 1) * kerf);
var svgEndG = document.getElementById('END_GRAIN_G');
var svgEdgeG = document.getElementById('EDGE_GRAIN_G');
var leftY = 0;
var rightY = 0;
var leftX = 0;
var rightX = sourceThickness * SCALE;
var layerTemplate =
document.createElementNS("http://www.w3.org/2000/svg", 'g');
var woodUsed = [];
for (var i = 0; i < layerInfos.length; ++i) {
var layerInfo = layerInfos[i];
var newLeftY = leftY + layerInfo.width * SCALE;
var newRightY = leftY +
(layerInfo.width +
sourceThickness * Math.tan(layerInfo.trailingAngle * Math.PI / 180)
) * SCALE;
if (newRightY < rightY) {
// TODO: Alerts are really annoying. Make a status display area.
alert("The trailing angle of layer " + (i + 1) +
" is too low, or the trailing angle of layer " + i +
" is too high. This causes a bad cut.");
}
var points = "";
points += leftX + "," + leftY + " ";
points += leftX + "," + newLeftY + " ";
points += rightX + "," + newRightY + " ";
points += rightX + "," + rightY;
drawLayer(layerTemplate, points, woodInfos[layerInfo.woodIndex].color,
showOutlines);
points = "0," + leftY + " ";
points += "0," + newLeftY + " ";
points += scaledEdgeGrainLength + "," + newLeftY + " ";
points += scaledEdgeGrainLength + "," + leftY + " ";
drawLayer(svgEdgeG, points, woodInfos[layerInfo.woodIndex].color,
showOutlines);
if (!woodUsed[layerInfo.woodIndex]) {
woodUsed[layerInfo.woodIndex] = { used: 0, wasted: 0 };
}
woodUsed[layerInfo.woodIndex].used += kerf +
(Math.max(newLeftY, newRightY) - Math.min(leftY, rightY)) / SCALE;
woodUsed[layerInfo.woodIndex].wasted += kerf +
(Math.abs(newLeftY - newRightY) + Math.abs(leftY - rightY)) / SCALE;
leftY = newLeftY;
rightY = newRightY;
}
var flip = document.getElementById("FEO").checked;
var rotate = document.getElementById("REO").checked;
for (var i = 0; i < endgrainLayers; ++i) {
var layer = layerTemplate.cloneNode(true);
var transform = 'translate(' + (i * sourceThickness * SCALE) + ',0)';
if ((i % 2) && rotate) {
var rX = rightX / 2;
var rY = leftY / 2;
transform += ',rotate(180,' + rX + ',' + rY + ')';
}
if ((i % 2) && flip) {
var rX = rightX / 2;
var rY = leftY / 2;
var flipTransform = 'translate(' + rX + ',' + rY + '),' +
'scale(-1,1),' +
'translate(' + -rX + ',' + -rY + ')';
transform = transform + ',' + flipTransform;
}
layer.setAttribute('transform', transform);
svgEndG.appendChild(layer);
}
var scaledBoardWidth = Math.max(leftY, rightY);
var scaledEndGrainLength = rightX * endgrainLayers;
var scaledMaxBoardLength =
Math.max(scaledEndGrainLength, scaledEdgeGrainLength);
var dim = Math.max(scaledMaxBoardLength, scaledBoardWidth);
var edgeBoardCenterXOffset = (scaledEdgeGrainLength - dim) / 2;
var boardCenterYOffset = (scaledBoardWidth - dim) / 2;
var endBoardCenterXOffset = (scaledEndGrainLength - dim) / 2;
document.getElementById("OUTPUT_BOARD_WIDTH").innerHTML =
scaledBoardWidth / SCALE;
document.getElementById("OUTPUT_END_BOARD_LENGTH").innerHTML =
scaledEndGrainLength / SCALE;
document.getElementById("OUTPUT_EDGE_BOARD_LENGTH").innerHTML =
scaledEdgeGrainLength / SCALE;
document.getElementById("OUTPUT_SLICES").innerHTML = endgrainLayers;
document.getElementById("OUTPUT_LEFT_OVER").innerHTML =
endgrainLeftover.toPrecision(3);
outputWoodUsed(woodUsed, woodInfos);
svgEdgeG.parentNode.setAttribute("viewBox", edgeBoardCenterXOffset + " " +
boardCenterYOffset + " " + dim + " " + dim);
svgEndG.parentNode.setAttribute("viewBox", endBoardCenterXOffset + " " +
boardCenterYOffset + " " + dim + " " + dim);
}
function recalculate() {
var layers = getAllLayerInfos();
var woods = getAllWoodInfos();
drawLayers(layers, woods);
}
var recalcDepth = 0;
function pushNoRecalculate() {
assert(recalcDepth >= 0);
++recalcDepth;
}
function popNoRecalculate() {
assert(recalcDepth >= 0);
if (!--recalcDepth) {
recalculate();
}
}
function suggestRecalc() {
if (!recalcDepth) {
recalculate();
}
}
function setStateFromData(woods, layers) {
pushNoRecalculate();
try {
clearAllLayers();
var body = document.getElementById("WOOD_INFO_BODY");
// TODO: Merge woods instead of replacing them, overwriting same-name woods
// but leaving the rest. Consider sorting the list alphabetically, too.
body.parentNode.replaceChild(body.cloneNode(false), body);
for (var i = 0; i < woods.length; ++i) {
var woodInfo = woods[i];
addWoodToDOM(woodInfo.name, woodInfo.color);
}
for (var i = 0; i < layers.length; ++i) {
var layerInfo = layers[i];
addLayerToDOM(layerInfo.woodIndex, layerInfo.width,
layerInfo.trailingAngle);
}
} finally {
popNoRecalculate();
}
}
function getSplitChar(majorVersion) {
if (majorVersion == '1') {
return '^';
}
return ',';
}
function getStateAsArgs() {
// TODO: Should we only export woods in use?
var state = ["v=" + VERSION];
var inputs = document.getElementsByClassName("export");
inputs = Array.prototype.slice.call(inputs);
for (var i in inputs) {
var input = inputs[i];
if (input.type.toLowerCase() == 'checkbox') {
state.push(input.id + "=" + (input.checked ? 1 : 0));
} else if (input.getAttribute("type") == 'number') {
state.push(input.id + "=" + input.value);
} else {
assert(false);
}
}
var woods = getAllWoodInfos();
var splitChar = getSplitChar(versionInfo.protocol);
t = [];
for (var i = 0; i < woods.length; ++i) {
var w = woods[i];
var c = w.color.substring(1);
var n = encodeURIComponent(w.name);
t.push(c + splitChar + n);
}
state.push('w=' + t.join('|'));
var layers = getAllLayerInfos();
t = [];
for (var i = 0; i < layers.length; ++i) {
var l = layers[i];
t.push(l.woodIndex + splitChar + l.width + splitChar + l.trailingAngle);
}
state.push('l=' + t.join('|'));
return state.join('&');
}
function setStateFromArgString(str) {
pushNoRecalculate();
try {
var state = str.split('&');
var woodInfos = [];
var layerInfos = [];
var majorVersion;
for (var i in state) {
var s = state[i];
if (s.indexOf("v=") == 0) {
var triplet = s.substring(2).split('.');
majorVersion = triplet[0];
if (majorVersion != '1' && majorVersion != '2') {
alert("Your bookmark is too new for this version of the code; " +
"please upgrade.");
assert(false);
}
} else if (s.indexOf("w=") == 0) {
assert(!woodInfos.length);
var pairs = s.substring(2).split('|');
for (var ip in pairs) {
var pair = pairs[ip].split(getSplitChar(majorVersion));
woodInfos.push(new WoodInfo(
'#' + pair[0],
decodeURIComponent(pair[1]).replace(/%3D/g, '=')));
}
} else if (s.indexOf("l=") == 0) {
assert(!layerInfos.length);
var triplets = s.substring(2).split('|');
for (var ip in triplets) {
var triplet = triplets[ip].split(getSplitChar(majorVersion));
layerInfos.push(new LayerInfo(
triplet[0], triplet[1], triplet[2]));
}
} else {
var pair = s.split('=');
var id = pair[0];
var value = pair[1];
var elt = document.getElementById(id);
assert(elt);
if (elt.type == 'checkbox') {
elt.checked = value == '1';
} else if (elt.getAttribute("type") == 'number') {
elt.value = value;
} else {
assert(false);
}
}
}
setStateFromData(woodInfos, layerInfos);
} finally {
popNoRecalculate();
}
}
function getURL() {
var arg = getStateAsArgs();
var loc = window.location.toString();
var query = loc.indexOf('?');
if (query >= 0) {
loc = loc.substring(0, query);
}
loc += '?' + arg;
var a = document.createElement('a');
a.setAttribute('href', loc);
a.appendChild(document.createTextNode("Copy or bookmark this link."));
var elt = document.getElementById('OUTPUT_URL');
if (elt.firstChild) {
elt.replaceChild(a, elt.firstChild);
} else {
elt.appendChild(a);
}
// window.open(loc);
}
function getVersionInfo(version) {
var a = version.split('.');
return { protocol: a[0], major: a[1], minor: a[2], mini: a[3] };
}
function getPrettyVersionString(versionInfo) {
return versionInfo.major + "." + versionInfo.minor + "." + versionInfo.mini;
}
var versionInfo;
function init() {
versionInfo = getVersionInfo(VERSION);
document.getElementById("VERSION_DISPLAY").appendChild(
document.createTextNode(getPrettyVersionString(versionInfo)));
var str = window.location.search.substring(1);
if (str.length) {
try {
setStateFromArgString(str);
return;
} catch (ex) {
alert("Invalid state in query string; " +
"using defaults for woods and layers.");
}
}
setStateFromData(DEFAULT_WOODS, SAMPLE_LAYERS);
}
init();
</script>
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