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index-en.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fuse Bead Tool</title>
<link rel="shortcut icon" href="/image/favicon.png" type="image/png">
<link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/4.3.1/css/bootstrap.min.css">
<style>
body {
margin: 0;
overflow-x: hidden;
}
canvas {
border: 1px solid #060606;
}
#mainContent {
display: none;
}
.colorBlock {
display: inline-block;
width: 24px;
height: 24px;
text-align: center;
line-height: 24px;
margin: 2px;
vertical-align: top;
font: 11px monospace;
border: 1px solid #060606;
}
.pointer {
cursor: pointer;
}
.colorBlock.selected {
border: 3px solid #ff0000;
}
td {
text-align: center;
vertical-align: middle;
}
.mask {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
a:hover {
text-decoration: none;
}
</style>
<script src="js/palette.v2.1.js"></script>
<script src="https://ajax.aspnetcdn.com/ajax/jquery/jquery-3.4.1.min.js"></script>
<script src="js/popper.min.js"></script>
<script src='https://ajax.aspnetcdn.com/ajax/bootstrap/4.3.1/bootstrap.min.js'></script>
</head>
<body>
<div class="card">
<div class="h3 card-header">
<label>Fuse Bead Tool</label>
<div class="float-right mx-2" class='align-top'>
<img src='image/help.png' style='height: 2rem;' data-toggle="modal" data-target="#docModal"
title="User guide" />
<span class="h6"><a href="/">中文</a>/Eng</span>
</div>
</div>
<div class="card-body">
<form>
<div class="form-group">
<div class="row">
<label class="col-sm-2 col-form-label">Choose image：</label>
<div class="custom-file col-sm-4">
<input type="file" class="custom-file-input" id="imageChooser"
accept="image/png, image/jpeg, image/gif" />
<label class="custom-file-label" for="imageChooser"></label>
</div>
</div>
</div>
<div class="form-group">
<div class="row">
<label class="col-sm-2 col-form-label">Bead brand：</label>
<select id="paletteSelect" class="form-control col-sm-4">
<option value="mard">Mard</option>
<option value="hama" selected>Hama</option>
<option value="perler">Perler 5mm</option>
<option value="perler-mini">Perler mini 2.6mm</option>
<option value="nabbi">Nabbi</option>
<option value="artkal-s">Artkal S 5mm</option>
<option value="artkal-r">Artkal R soft 5mm</option>
<option value="artkal-c">Artkal C 2.6mm</option>
<option value="artkal-a">Artkal A soft 2.6mm</option>
</select>
</div>
</div>
<div class="form-group">
<div class="row">
<label class="col-sm-2 col-form-label">Piece size：</label>
<select id="pieceSizeSelect" class="form-control col-sm-4">
<option value="20">20x20</option>
<option value="25">25x25</option>
<option value="30">30x30</option>
<option value="40" selected>40x40</option>
<option value="50">50x50</option>
</select>
</div>
</div>
</form>
</div>
</div>
<div id='mainContent'>
<div class="row">
<div class="col">
<div class="card">
<div class="card-header">
Original image
</div>
<div class="card-body">
<canvas id="originalCanvas"></canvas>
</div>
</div>
</div>
<div class="col">
<div class="card">
<div class="card-header">
Full image
</div>
<div class="card-body">
<canvas id="fullCanvas"></canvas>
</div>
</div>
</div>
<div class="col">
<div class="card">
<div class="card-header">
Image pieces
</div>
<div class="card-body">
<table id='sliceImageContainer' class='table-bordered'>
</table>
</div>
</div>
</div>
</div>
<div class="card">
<div class="card-header">
<label id='largePicInfo' class="col-form-label"></label>
<div class="dropdown float-right mx-2">
<button class="btn btn-outline-danger dropdown-toggle" type="button" id="dropdownColorReplace"
data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Color replace
</button>
<div class="dropdown-menu dropdown-menu-right overflow-auto" aria-labelledby="dropdownColorReplace"
style="max-height:800px;">
<div class="px-4 py-3">
<button type="button" class="btn btn-danger btn-sm" id="removeAllColorReplace">Remove
all</button>
<button type="button" class="btn btn-primary btn-sm"
id="showColorReplaceJsonModel">Import/Export</button>
<div class="dropdown-divider"></div>
<h6 class="dropdown-header">Color replace list</h6>
<table class="table table-sm" style="max-width: 180px;">
<thead>
<th style="width: 36px;">Old</th>
<th style="width: 36px;">New</th>
<th></th>
</thead>
<tbody id="colorReplaceTable">
</tbody>
</table>
<h6 class="dropdown-header">Pixel color replace list</h6>
<table class="table table-sm" style="min-width: 220px;">
<thead>
<th>Coordinate</th>
<th style="width: 36px;">Old</th>
<th style="width: 36px;">New</th>
<th></th>
</thead>
<tbody id="pixelColorReplaceTable">
</tbody>
</table>
</div>
</div>
</div>
<div class="dropdown float-right mx-2">
<button class="btn btn-outline-primary dropdown-toggle" type="button" id="dropdownColorSum"
data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Color count
</button>
<div class="dropdown-menu dropdown-menu-right overflow-auto" aria-labelledby="dropdownColorSum"
id="colorSum" style="max-height:600px;min-width: 180px;">
<table class="table table-sm">
<thead>
<th style="width: 36px;">Color</th>
<th>Count</th>
<th></th>
</thead>
<tbody id="colorSumTable">
</tbody>
</table>
</div>
</div>
<div class="float-right mx-2" id="brushToolBar">
<label id='brushInfo'></label>
<button type="button" class="btn btn-danger" id="disableBrushMode">Exit brush mode</button>
</div>
</div>
<div class="card-body" style='padding: 0;'>
<canvas id="viewCanvas"></canvas>
</div>
</div>
</div>
<div class="modal fade" id="colorModal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h6 class="modal-title" id="pointDialogTitle"></h6>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<div>
<div id="colorInfo"> </div>
<hr />
<button type="button" class="btn btn-primary" id='showSingleColor'>Show this color only</button>
<hr />
<strong>Color replace:</strong>
<div id="colorSelector">
</div>
<div id='colorToolBar' class='row justify-content-around py-3'>
<button type="button" class="btn btn-primary" id='replaceColor'>Replace all color</button>
<button type="button" class="btn btn-primary" id='replacePixel'>Replace this pixel</button>
<button type="button" class="btn btn-info" id='replacePixelBrush'>Enter brush mode</button>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="modal fade" id="colorReplaceJsonModal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Import/Export color replace data</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<label>Color replace data</label>
<textarea class="form-control" rows="10" id="colorReplaceJson"></textarea>
<div id="copySuccessAlert" class="alert alert-success">
<a href="#" class="close" data-dismiss="alert">×</a>
Copied！
</div>
<div id="importErrorAlert" class="alert alert-warning">
<a href="#" class="close" data-dismiss="alert">×</a>
Data format error！
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline-primary" id="copyColorReplaceJson">Copy to
clipboard</button>
<button type="button" class="btn btn-primary" id="importColorReplaceJson">Import</button>
</div>
</div>
</div>
</div>
<div class="modal fade" id="docModal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-lg" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">User guide</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<p>This web tool is a helper for making fuse beads. It builds on HTML5+JS so can use on PC or mobile
phone. </p>
<p class="text-success">Privacy notice: All image processing job runs on your local web browser, no
image will be uploaded or saved.</p>
<p>User guide:</p>
<p>
<ul>
<li>Upload local image, each pixel will convert to similar color of beads and zoom in for
your consult.</li>
<li>Image size limit is 500x500, strongly recommend PNG format than JPEG.</li>
<li>Image will be cut into smaller size pieces. Click piece or full image to swap the large
image shown.</li>
<li>"Color count" button on toolbar used to show each count of colors.</li>
<li>Two way to show some color only: click the large pixel to show a dialog; or press the
<< on "Color count" button.</li>
<li>Click the large pixel show a dialog to change colors, there's 3 type:
<ul>
<li>Change one color to another;</li>
<li>Change this pixel to another color;</li>
<li>Use brush mode to draw color on large image;</li>
</ul>
</li>
<li>"Color replace" button on toolbar used to show the color or pixels you have replaced.
You can import/export the whole list for large fuse bead project.</li>
</ul>
</p>
<p>You can choose some popular brands of bead. The raw palette data refers to <a
href="https://www.reddit.com/r/beadsprites/comments/7ebgal/xml_files_of_all_the_colors_hama_perler_nabbi/"
target="_blank" class="text-secondary">a Reddit post</a>.</p>
<p class="text-info">Last update on Jan 9, 2020</p class="text-info">
<p class="text-right">
by aton
<a href="https://github.com/atonasting/fuse-bead-tool" target="_blank">
<img src='image/GitHub-Mark-64px.png' style='height: 2rem;'
title="Visit my Github for latest source code" />
</a>
</p>
</div>
</div>
</div>
</div>
<div class="modal hide" id="loadingMask" tabindex="-1" role="dialog" aria-hidden="true" data-backdrop="static"
data-keyboard="false">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-body">
<div class="mask">
<div class="spinner-border text-dark m-3" role="status">
<span class="sr-only"></span>
</div>
<span class="h1"> Drawing...</span>
</div>
</div>
</div>
</div>
</div>
</body>
<script type="text/javascript">
const pixelSize = 20,//马赛克像素尺寸（放大倍数）
dragMinTimeSpan = 20,//拖拽所需的鼠标按下最小时间间隔（ms）
dragMinDistance = 8,//拖拽所需的鼠标移动最小距离（像素）
imageSizeLimit = 500;//图片尺寸大小限制
var pieceSize = 40;//单块拼板容纳的拼豆数
var paletteMap = generatePaletteMap(allPalettes.get("hama")),//调色板对象
similarColorCache = new Map(),//与实际颜色最相近的调色板颜色缓存
paletteImageData = new Array(),//存储原始图片替换调色板颜色后的原图
sliceImages = new Array(),//存储所有切块图的二维数组
currentSliceImage = null;//当前显示的切块图位置（显示全图时为null）
var selectedPixel = null,//当前选中的像素点（x,y,color)
filterColor = '',//颜色筛选（只显示此颜色的色块）
colorReplaceList = new Map(),//颜色替换列表
pixelColorReplaceList = new Map();//颜色替换列表（单个像素）
var isMouseDown = false,
mousedownStartTime = null,//鼠标按下的时间
mousedownStartX = 0,//鼠标按下的起点X
mousedownStartY = 0,//鼠标按下的起点Y
isDragging = false,//视图是否正在拖拽中
isBrushMode = false,//是否处于笔刷模式（点击大图直接换色）
brushColor = '';//笔刷颜色
var largeCanvas,//生成的马赛克大图Canvas，切出一部分显示在ViewCanvas
largeCanvasStartOffsetX = 0,//拖拽开始时的背景X坐标偏移
largeCanvasStartOffsetY = 0,//拖拽开始时的背景Y坐标偏移
largeCanvasOffsetX = 0,//背景大图的X坐标偏移
largeCanvasOffsetY = 0,//背景大图的Y坐标偏移
isDrawingViewCanvas = false,//视图是否正在绘制中
colorSum = new Map();//大图颜色统计
var scrollbarWidth = getScrollbarWidth();
var rulerX1Canvas, rulerX2Canvas, rulerY1Canvas, rulerY2Canvas;//四个标尺的canvas
$().ready(function () {
var originalCanvas = document.getElementById('originalCanvas'),//原始图片canvas
fullCanvas = document.getElementById('fullCanvas'),//完整图片canvas
viewCanvas = document.getElementById('viewCanvas');//视图（可拖拽点击）canvas
//显示调色板选色器
generateColorSelectorHtml();
$('#brushToolBar').hide();
//事件绑定
{
var lastWindowWidth = window.innerWidth;
//窗口重绘后重设canvas尺寸
window.addEventListener('resize', function (e) {
//只有宽度真正改变时才继续，阻止移动设备上的拖拽误触发resize事件
if (lastWindowWidth == window.innerWidth) return;
lastWindowWidth = window.innerWidth;
if (!$('#mainContent').is(":hidden")) {
resizeViewCanvasFitWindow();
refreshImage();
}
}, false);
//图片加载事件
$('#imageChooser').change(function (e) {
$(this).next('.custom-file-label').html(e.target.files[0].name);//bootstrap的file控件不会自动赋值，需要手工显示
if (e.target.files.length <= 0) return;
let imageFile = e.target.files[0];
var reader = new FileReader();
reader.onload = function (e) {
var image = new Image();
image.src = e.target.result;
image.onload = function (e) {
if (this.width > imageSizeLimit || this.height > imageSizeLimit) {
alert('Image size: ' + this.width + 'x' + this.height + ' is too large，must less than ' + imageSizeLimit + 'x' + imageSizeLimit);
return;
}
showLoadingMask(() => {
//重加载图片后的完整操作步骤：
//清空缓存和各种信息
similarColorCache = new Map();
paletteImageData = new Array();
sliceImages = new Array();
currentSliceImage = null;
largeCanvasOffsetX = 0;
largeCanvasOffsetY = 0;
colorReplaceList = new Map();
pixelColorReplaceList = new Map();
refreshColorReplaceList();
$('#mainContent').show();
let originalCtx = originalCanvas.getContext('2d');
originalCtx.clearRect(0, 0, originalCanvas.width, originalCanvas.height);
//绘制原图
originalCanvas.width = this.width;
originalCanvas.height = this.height;
originalCtx.drawImage(this, 0, 0);
//切掉原图白色和透明边
trimCanvas(originalCanvas);
//将原图颜色换成最相近的调色板颜色
toPaletteColor(originalCanvas, fullCanvas);
//将完整图片切成图块
sliceCanvasToImage(fullCanvas, 'sliceImageContainer');
//显示完整图片对应的马赛克大图
showFullImageView();
});
}
// 清空图片上传框的值
imageChooser.value = '';
};
reader.readAsDataURL(imageFile);
});
//拼豆品牌变化
$('#paletteSelect').change(function (e) {
if (this.value && allPalettes.has(this.value)) {
paletteMap = generatePaletteMap(allPalettes.get(this.value));//重新加载调色板
//刷新调色板选色器
generateColorSelectorHtml();
if (!$('#mainContent').is(':hidden')) {
showLoadingMask(() => {
//刷新调色板的完整操作步骤：
//清空缓存和各种信息
similarColorCache = new Map();
paletteImageData = new Array();
sliceImages = new Array();
currentSliceImage = null;
largeCanvasOffsetX = 0;
largeCanvasOffsetY = 0;
colorReplaceList = new Map();
pixelColorReplaceList = new Map();
refreshColorReplaceList();
//将原图颜色换成最相近的调色板颜色
toPaletteColor(originalCanvas, fullCanvas);
//将完整图片切成图块
sliceCanvasToImage(fullCanvas, 'sliceImageContainer');
//显示完整图片对应的马赛克大图
showFullImageView();
});
}
}
});
//拼板尺寸变化
$('#pieceSizeSelect').change(function (e) {
if (this.value && parseInt(this.value)) {
pieceSize = parseInt(this.value);
if (!$('#mainContent').is(':hidden')) {
resizeViewCanvasFitWindow();
refreshImage();
}
}
});
//点击显示全图
$(fullCanvas).on('click tap', function (e) {
showLoadingMask(() => {
showFullImageView();
});
});
//只显示某颜色按钮点击
$('#showSingleColor').on('click tap', function (e) {
$('#colorModal').modal('hide');
filterColor = selectedPixel.color;
refreshImage();
});
//替换单个像素按钮点击
$('#replacePixel').on('click tap', function (e) {
$('#colorModal').modal('hide');
if (!this.value) return;
//替换像素坐标使用的是全图真实坐标
let position = getRealPosition(selectedPixel.x, selectedPixel.y);
replacePixelColor(position.x, position.y, this.value);
refreshColorReplaceList();
refreshImage();
});
//替换相同颜色按钮点击
$('#replaceColor').on('click tap', function (e) {
$('#colorModal').modal('hide');
if (!this.value) return;
replaceColor(selectedPixel.color, this.value);
refreshColorReplaceList();
refreshImage();
});
//进入笔刷模式按钮点击
$('#replacePixelBrush').on('click tap', function (e) {
if (isBrushMode) return;
$('#colorModal').modal('hide');
isBrushMode = true;
brushColor = this.value;
$('#brushInfo').html("Brush mode:<div class='colorBlock' style='color:" + getFontColor(brushColor) + "; background:#" + brushColor + ";'>" + paletteMap.get(brushColor).name + "</div>");
$('#brushToolBar').show();
});
//退出笔刷模式按钮点击
$('#disableBrushMode').on('click tap', function (e) {
isBrushMode = false;
brushColor = '';
$('#brushInfo').html('');
$('#brushToolBar').hide();
});
//关闭颜色对话框
$('#colorModal').on('hidden.bs.modal', function (e) {
//清除当前对话框中的所选值
selectedColor = null;
$("#colorSelector>div.selected").removeClass("selected");
$('#replacePixel').val('');
$('#replaceColor').val('');
});
//移除所有颜色替换选项
$('#removeAllColorReplace').on('click tap', function (e) {
colorReplaceList = new Map();
pixelColorReplaceList = new Map();
refreshColorReplaceList();
refreshImage();
});
//颜色替换选项导入/导出按钮
$('#showColorReplaceJsonModel').on('click tap', function (e) {
if (pixelColorReplaceList.size == 0 && colorReplaceList.size == 0) {
$('#colorReplaceJson').val('');
}
else {
//生成json
let jsonObj = {
pixelColorReplaceList: [...pixelColorReplaceList],
colorReplaceList: [...colorReplaceList]
};
$('#colorReplaceJson').val(JSON.stringify(jsonObj));
}
$("#copySuccessAlert").hide();
$("#importErrorAlert").hide();
$('#colorReplaceJsonModal').modal('show');
});
//复制颜色替换选项json到剪贴板
$('#copyColorReplaceJson').on('click tap', function (e) {
if ($('#colorReplaceJson').val().trim().length == 0) return;
$('#colorReplaceJson').select();
document.execCommand("Copy");//执行浏览器复制命令
$("#copySuccessAlert").show().delay(2000).slideUp(200, function () {
$(this).hide();
});
});
//导入颜色替换选项
$('#importColorReplaceJson').on('click tap', function (e) {
let json = $('#colorReplaceJson').val();
if (!json) return;
try {
let jsonObj = JSON.parse(json);
if (!jsonObj || !jsonObj.pixelColorReplaceList || !jsonObj.pixelColorReplaceList) {
console.log('json format error');
$("#importErrorAlert").show().delay(2000).slideUp(200, function () {
$(this).hide();
});
return;
}
pixelColorReplaceList = new Map(jsonObj.pixelColorReplaceList);
colorReplaceList = new Map(jsonObj.colorReplaceList);
refreshColorReplaceList();
refreshImage();
$('#colorReplaceJsonModal').modal('hide');
} catch (e) {
console.log(e);
$("#importErrorAlert").alert().delay(2000).slideUp(200, function () {
$(this).alert('close');
});
}
});
}
//视图互动事件
{
viewCanvas.onmousedown = function (e) {
if (e.buttons == 1 && largeCanvas) {//点击左键并且在大图已加载情况下开始拖拽
mousedownStartX = e.clientX;
mousedownStartY = e.clientY;
isMouseDown = true;
mousedownStartTime = new Date().getTime();
// isDragging = true;
}
};
viewCanvas.onmousemove = function (e) {
//鼠标按下且移动足够时间和距离后，判定为开始拖拽
if (isMouseDown & !isDragging) {
let mousedownTime = new Date().getTime() - mousedownStartTime;
if (mousedownTime > dragMinTimeSpan) {
let mousemoveDistance = Math.abs(mousedownStartX - e.clientX) + Math.abs(mousedownStartY - e.clientY);
if (mousemoveDistance > dragMinDistance) {
isDragging = true;
}
}
}
else if (isDragging && !isDrawingViewCanvas) {
//计算大图偏移值
largeCanvasOffsetX = largeCanvasStartOffsetX + mousedownStartX - e.clientX;
largeCanvasOffsetY = largeCanvasStartOffsetY + mousedownStartY - e.clientY;
if (largeCanvasOffsetX > largeCanvas.width - viewCanvas.width + 2 * (pixelSize + 1)) largeCanvasOffsetX = largeCanvas.width - viewCanvas.width + 2 * (pixelSize + 1);
if (largeCanvasOffsetX < 0) largeCanvasOffsetX = 0;
if (largeCanvasOffsetY > largeCanvas.height - viewCanvas.height + 2 * (pixelSize + 1)) largeCanvasOffsetY = largeCanvas.height - viewCanvas.height + 2 * (pixelSize + 1);
if (largeCanvasOffsetY < 0) largeCanvasOffsetY = 0;
requestAnimationFrame(function () {
showPartView();
});
}
};
viewCanvas.onmouseup = function (e) {
//鼠标按下但未拖拽时松开鼠标，触发点击
if (isMouseDown && !isDragging) {
viewCanvasClick(e);
}
isDragging = false;
isMouseDown = false;
largeCanvasStartOffsetX = largeCanvasOffsetX;
largeCanvasStartOffsetY = largeCanvasOffsetY;
};
viewCanvas.onmouseout = function (e) {
isDragging = false;
isMouseDown = false;
largeCanvasStartOffsetX = largeCanvasOffsetX;
largeCanvasStartOffsetY = largeCanvasOffsetY;
};
//触摸事件触发鼠标事件（移动端）
viewCanvas.ontouchstart = function (e) {
e.preventDefault();
let touch = e.touches[0];
viewCanvas.dispatchEvent(new MouseEvent("mousedown", {
buttons: 1,
clientX: touch.clientX,
clientY: touch.clientY
}));
};
viewCanvas.ontouchmove = function (e) {
e.preventDefault();
let touch = e.touches[0];
viewCanvas.dispatchEvent(new MouseEvent("mousemove", {
buttons: 1,
clientX: touch.clientX,
clientY: touch.clientY
}));
};
viewCanvas.ontouchend = function (e) {
e.preventDefault();
let touch = e.changedTouches[0];
viewCanvas.dispatchEvent(new MouseEvent("mouseup", {
buttons: 1,
clientX: touch.clientX,
clientY: touch.clientY
}));
};
viewCanvas.ontouchcancel = function (e) {
e.preventDefault();
viewCanvas.dispatchEvent(new MouseEvent("mouseout", {}));
};
}
});
//视图点击（触摸）操作
function viewCanvasClick(e) {
//实际在全图上的点击坐标
let rect = viewCanvas.getBoundingClientRect();
let realClickX = e.clientX - rect.left + largeCanvasOffsetX - (pixelSize + 1),
realClickY = e.clientY - rect.top + largeCanvasOffsetY - (pixelSize + 1);
//如果点在标尺上则不触发事件
if (realClickX < 0 || realClickX > viewCanvas.width + largeCanvasOffsetX - 2 * (pixelSize + 1)
|| realClickY < 0 || realClickY > viewCanvas.height + largeCanvasOffsetY - 2 * (pixelSize + 1)) return;
//如果当前正在过滤颜色，则恢复全部颜色
if (filterColor) {
filterColor = null;
refreshImage();
return;
}
//实际像素坐标
let pointX = ~~(realClickX / (pixelSize + 1)),
pointY = ~~(realClickY / (pixelSize + 1));
//全图真实坐标
let realPosition = getRealPosition(pointX, pointY);
let pointColorHex = getFullCanvasColor(realPosition.x, realPosition.y);//显示的颜色
if (!pointColorHex) return;//不操作透明像素和超出范围的像素
//如果处于笔刷模式则修改像素颜色
if (isBrushMode) {
replacePixelColor(realPosition.x, realPosition.y, brushColor);
refreshColorReplaceList();
refreshImage();
return;
}
let sourceColorHex = getFullImageColor(realPosition.x, realPosition.y);//原始颜色
let pointColor = paletteMap.get(pointColorHex);
if (sourceColorHex == pointColorHex) {
//未换色的情况
$('#colorInfo').html(" <strong>Color</strong><div class='colorBlock' style='color:" + getFontColor(pointColorHex)
+ "; background:#" + pointColorHex + ";'>" + pointColor.name + "</div>#" + pointColorHex);
}
else {
//换色的情况
let sourceColor = paletteMap.get(sourceColorHex);
$('#colorInfo').html(" <strong>Current color</strong><div class='colorBlock' style='color:" + getFontColor(pointColorHex)
+ "; background:#" + pointColorHex + ";'>" + pointColor.name + "</div>#" + pointColorHex
+ " <strong>Original color</strong><div class='colorBlock' style='color:" + getFontColor(sourceColorHex)
+ "; background:#" + sourceColorHex + ";'>" + sourceColor.name + "</div>#" + sourceColorHex);
}
selectedPixel = { x: pointX, y: pointY, color: pointColorHex, name: pointColor.name };
$('#showSingleColor').html('Only show ' + colorSum.get(pointColorHex) + ' ' + pointColor.name);
$('#pointDialogTitle').html("<strong>Full coordinate</strong>(" + (pointX + 1) + "," + (pointY + 1) + ")");
$('#colorToolBar').css('visibility', 'hidden');//占位隐藏工具栏
$('#colorModal').modal('show');
}
//获取全图指定坐标点对应的图片色值
function getFullCanvasColor(x, y) {
//根据当前显示的是全图还是切块，读取坐标所在rgb数据
let imageData, cursor;
let fullCtx = fullCanvas.getContext('2d');
imageData = fullCtx.getImageData(0, 0, fullCanvas.width, fullCanvas.height);
cursor = (y * fullCanvas.width + x) * 4;
if (cursor + 3 >= imageData.data.length) return null;//超出图像范围返回null
if (imageData.data[cursor + 3] == 0) return null;//透明色返回null
return rgbToHex(imageData.data[cursor], imageData.data[cursor + 1], imageData.data[cursor + 2]);
}
//获取换色原始图指定坐标点对应的图片色值
function getFullImageColor(x, y) {
let cursor = (y * paletteImageData.width + x) * 4;
if (paletteImageData.data[cursor + 3] == 0) return null;
return rgbToHex(paletteImageData.data[cursor], paletteImageData.data[cursor + 1], paletteImageData.data[cursor + 2]);
}
//去除canvas边缘的透明和白色像素
function trimCanvas(canvas) {
let ctx = canvas.getContext('2d'),
imageData = ctx.getImageData(0, 0, canvas.width, canvas.height),
bound = {
top: canvas.height,
left: canvas.width,
right: 0,
bottom: 0
};
for (let i = 0; i < imageData.data.length; i += 4) {
if (imageData.data[i + 3] !== 0
&& (imageData.data[i] < 250 || imageData.data[i + 1] < 250 || imageData.data[i + 2] < 250)) {//透明或者近似白色都作为白色去掉
let x = (i / 4) % canvas.width;
let y = ~~((i / 4) / canvas.width);
if (bound.top > y) bound.top = y;
if (bound.left > x) bound.left = x;
if (bound.right < x) bound.right = x;
if (bound.bottom < y) bound.bottom = y;
}
}
//取出裁剪图片的宽高
let trimHeight = bound.bottom - bound.top + 1,
trimWidth = bound.right - bound.left + 1,
trimmedImage = ctx.getImageData(bound.left, bound.top, trimWidth, trimHeight);
canvas.width = trimWidth;
canvas.height = trimHeight;
ctx.putImageData(trimmedImage, 0, 0);
}
//将canvas颜色输出为最相近的调色板颜色
function toPaletteColor(sourceCanvas, destCanvas) {
let sourceCtx = sourceCanvas.getContext('2d'),
destCtx = destCanvas.getContext('2d'),
imageData = sourceCtx.getImageData(0, 0, sourceCanvas.width, sourceCanvas.height);
//逐像素读取原图并寻找颜色值
for (let i = 0; i < imageData.data.length; i += 4) {
//读取颜色，如果透明则跳过
let a = imageData.data[i + 3];
if (a == 0) continue;
//加透明度选项
let r = ~~(imageData.data[i] * a / 255);
let g = ~~(imageData.data[i + 1] * a / 255);
let b = ~~(imageData.data[i + 2] * a / 255);
let x = (i / 4) % sourceCanvas.width;
let y = ~~((i / 4) / sourceCanvas.width);
//绘制调色板图
let similarColor = findSimilarColor(r, g, b);
imageData.data[i] = similarColor.r;
imageData.data[i + 1] = similarColor.g;
imageData.data[i + 2] = similarColor.b;
imageData.data[i + 3] = 255;//处理后一律变成不透明色
}
//保存换色后的原图
paletteImageData = imageData;
similarColorCache = null;
destCanvas.width = sourceCanvas.width;
destCanvas.height = sourceCanvas.height;
destCtx.putImageData(imageData, 0, 0);
}
//将canvas分割为小图并输出为可点击的image集合
function sliceCanvasToImage(canvas, sliceContainerName) {
let ctx = canvas.getContext('2d'),
rowCount = Math.ceil(canvas.height / pieceSize),//分割行数
colCount = Math.ceil(canvas.width / pieceSize);//分割列数
//生成table和image标签
let tableHtml = '';
for (let y = 0; y < rowCount; y++) {
tableHtml += "<tr>";
for (let x = 0; x < colCount; x++) {
tableHtml += "<td><img id='sliceImage-" + y + "_" + x + "' /></td>";
}
tableHtml += "</tr>";
}
$('#' + sliceContainerName).html(tableHtml);
//生成临时Canvas用于转换分割小图
let tempCanvas = document.createElement('canvas'),
tempCtx = tempCanvas.getContext('2d');
tempCanvas.width = pieceSize;
tempCanvas.height = pieceSize;
tempCtx.font = ~~(pieceSize / 4) + 'px monospace';
tempCtx.strokeStyle = '#000';
tempCtx.textBaseline = 'bottom';
tempCtx.textAlign = 'right';
sliceImages = new Array(rowCount);
for (let y = 0; y < rowCount; y++) {
sliceImages[y] = new Array(colCount);
for (let x = 0; x < colCount; x++) {
tempCtx.clearRect(0, 0, pieceSize, pieceSize);
//如果宽高超出canvas则减小
let width = (x + 1 * pieceSize) > canvas.width ? canvas.width - x * pieceSize : pieceSize;
let height = (y + 1 * pieceSize) > canvas.height ? canvas.height - y * pieceSize : pieceSize;
let imageData = ctx.getImageData(x * pieceSize, y * pieceSize, width, height);
sliceImages[y][x] = imageData;
tempCtx.putImageData(imageData, 0, 0);
tempCtx.fillText((y + 1) + ',' + (x + 1), pieceSize, pieceSize);
let tempImageURL = tempCanvas.toDataURL("image/png");
let img = $('#sliceImage-' + y + '_' + x);
img.attr('src', tempImageURL);
img.click(function () {
showLoadingMask(() => {
currentSliceImage = { x: x, y: y };
showImageView(sliceImages[y][x]);
});
});
}
}
}
//生成全图的马赛克视图
function showFullImageView(keepOffset) {
currentSliceImage = null;
let imageData = fullCanvas.getContext('2d').getImageData(0, 0, fullCanvas.width, fullCanvas.height);
showImageView(imageData, fullCanvas.width, fullCanvas.height, keepOffset);
}
//生成指定图像数据马赛克视图
function showImageView(imageData, keepOffset) {
//首先绘制在largeCanvas上，再根据偏移坐标绘到viewCanvas
largeCanvas = document.createElement('canvas');
let largeCtx = largeCanvas.getContext('2d');
largeCanvas.width = imageData.width * (pixelSize + 1);
largeCanvas.height = imageData.height * (pixelSize + 1);
largeCtx.font = (~~(pixelSize / 2)) + 'px monospace';
largeCtx.strokeStyle = '#000';
largeCtx.textBaseline = 'middle';
largeCtx.textAlign = 'center';
//绘制标尺
drawRulers(imageData.width, imageData.height);
//绘制网格
largeCtx.beginPath();
for (let x = 1; x < imageData.width; x++) {
largeCtx.moveTo(x * (pixelSize + 1) - 0.5, 0);
largeCtx.lineTo(x * (pixelSize + 1) - 0.5, largeCanvas.height);
largeCtx.stroke();
}
for (let y = 1; y < imageData.height; y++) {
largeCtx.moveTo(0, y * (pixelSize + 1) - 0.5);
largeCtx.lineTo(largeCanvas.width, y * (pixelSize + 1) - 0.5);
largeCtx.stroke();
}
//逐像素读取原图并绘制大图
colorSum = new Map();//大图颜色统计
let totolBeadCount = 0;//总拼豆数
for (let i = 0; i < imageData.data.length; i += 4) {
//读取颜色，如果透明则跳过
let a = imageData.data[i + 3];
if (a == 0) continue;
let r = imageData.data[i];
let g = imageData.data[i + 1];
let b = imageData.data[i + 2];
let hex = rgbToHex(r, g, b);
//计算坐标
let x = (i / 4) % imageData.width;
let y = ~~((i / 4) / imageData.width);
// let realPosition = getRealPosition(x, y);
totolBeadCount++;
//绘制大像素块
largeCtx.fillStyle = 'rgb(' + r + ',' + g + ',' + b + ')';
largeCtx.fillRect(x * (pixelSize + 1), y * (pixelSize + 1), pixelSize, pixelSize);
//写文字
largeCtx.fillStyle = getFontColor(r, g, b);//浅色黑字，深色白字
//统计颜色或出错信息
let color = paletteMap.get(hex);
if (color) {
if (colorSum.has(hex)) colorSum.set(hex, colorSum.get(hex) + 1);
else colorSum.set(hex, 1);
}
else {
console.log('Error color: ' + rgbToHex(r, g, b));
if (colorSum.has('Err')) colorSum.set('Err', colorSum.get('Err') + 1);