scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
240 lines (208 loc) • 9.9 kB
HTML
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Demo Canvas 003</title>
<link href="css/normalize.css" rel="stylesheet" />
<link href="css/tests.css" rel="stylesheet" />
<style>
.controls {
grid-template-columns: 1fr 2fr 1fr 2fr;
}
.css-gradients {
width: 510px;
margin-left: 30px;
color: white;
padding: 1em;
margin-bottom: 0.25em;
border: 1px solid black;
text-shadow: 0 0 2px black;
}
#rgb {
background: linear-gradient(0.25turn, rgb(0 0 0), rgb(255 0 0) 35%, rgb(0 0 255) 65%, rgb(255 255 255));
}
#hsl {
background: linear-gradient(0.25turn, hsl(0 0% 0%), hsl(0 100% 50%) 35%, hsl(240 100% 50%) 65%, hsl(0 0% 100%));
}
#hwb {
background: linear-gradient(0.25turn, hwb(0 0% 100%), hwb(0 0% 0%) 35%, hwb(240 0% 0%) 65%, hwb(0 100% 0%));
}
#lab {
background: linear-gradient(0.25turn, lab(0% 0 0), lab(53.23288178584245% 80.10930952982204 67.22006831026425) 35%, lab(32.302586667249486% 79.19666178930935 -107.86368104495168) 65%, lab(100% 0.00526049995830391 -0.010408184525267927));
}
#lch {
background: linear-gradient(0.25turn, lch(0% 0 0), lch(53.23288178584245% 104.57551843993618 40.00015790646365) 35%, lch(32.302586667249486% 133.81586201619493 306.2872015643272) 65%, lch(100% 0.011662039483869973 296.81292623674057));
}
#oklab {
background: linear-gradient(0.25turn, oklab(0% 0 0), oklab(62.796%, 0.22486, 0.12585) 35%, oklab(45.201%, -0.03246, -0.31153) 65%, oklab(100%, 0, 0));
}
#oklch {
background: linear-gradient(0.25turn, oklch(0%, 0, 0), oklch(62.796%, 0.25768, 29.23388) 35%, oklch(45.201%, 0.31321, 264.05203) 65%, oklch(100%, 0, 0));
}
</style>
</head>
<body>
<h1><a href="index.html">Scrawl-canvas v8</a> - Canvas test 003</h1>
<h2>Linear gradients</h2>
<div class="controls">
<div class="pink label">paletteStart</div>
<div class="pink"><input class="controlItem" id="paletteStart" type="range" value="0" min="0" max="999" step="1" /></div>
<div class="pink label">paletteEnd</div>
<div class="pink"><input class="controlItem" id="paletteEnd" type="range" value="0" min="0" max="999" step="1" /></div>
<div class="pink label">Cycle palette</div>
<div class="pink">
<select class="controlItem" id="cyclePalette">
<option value="0">false</option>
<option value="1">true</option>
</select>
</div>
<div class="pink label"> </div>
<div class="pink label"> </div>
<div class="pink label">Int. color space</div>
<div class="pink">
<select class="controlItem" id="colorSpace">
<option value="RGB">RGB</option>
<option value="HSL">HSL</option>
<option value="HWB">HWB</option>
<option value="LAB">LAB</option>
<option value="LCH">LCH</option>
<option value="OKLAB">OKLAB</option>
<option value="OKLCH">OKLCH</option>
<option value="XYZ">XYZ</option>
</select>
</div>
<div class="pink label">Ret. color space</div>
<div class="pink">
<select class="controlItem" id="returnColorAs">
<option value="RGB">RGB</option>
<option value="HSL">HSL</option>
<option value="HWB">HWB</option>
<option value="LAB">LAB</option>
<option value="LCH">LCH</option>
<option value="OKLAB">OKLAB</option>
<option value="OKLCH">OKLCH</option>
</select>
</div>
<div class="green label">startX</div>
<div class="green"><input class="controlItem" id="startX" type="range" value="0" min="0" max="100" step="1" /></div>
<div class="blue label">endX</div>
<div class="blue"><input class="controlItem" id="endX" type="range" value="0" min="0" max="100" step="1" /></div>
<div class="green label">startY</div>
<div class="green"><input class="controlItem" id="startY" type="range" value="0" min="0" max="100" step="1" /></div>
<div class="blue label">endY</div>
<div class="blue"><input class="controlItem" id="endY" type="range" value="0" min="0" max="100" step="1" /></div>
<div class="yellow label">Include red</div>
<div class="yellow">
<select class="controlItem colorItems" id="red">
<option value="0">false</option>
<option value="1">true</option>
</select>
</div>
<div class="yellow label">Include blue</div>
<div class="yellow">
<select class="controlItem colorItems" id="blue">
<option value="0">false</option>
<option value="1">true</option>
</select>
</div>
<div class="lavender label">Easing</div>
<div class="lavender">
<select class="controlItem" id="easing">
<option value="linear">linear</option>
<option value="out">out</option>
<option value="in">in</option>
<option value="" disabled>---</option>
<option value="easeOut">easeOut</option>
<option value="easeOutIn">easeOutIn</option>
<option value="easeInOut">easeInOut</option>
<option value="easeIn">easeIn</option>
<option value="easeOut3">easeOut3</option>
<option value="easeOutIn3">easeOutIn3</option>
<option value="easeInOut3">easeInOut3</option>
<option value="easeIn3">easeIn3</option>
<option value="easeOut4">easeOut4</option>
<option value="easeOutIn4">easeOutIn4</option>
<option value="easeInOut4">easeInOut4</option>
<option value="easeIn4">easeIn4</option>
<option value="easeOut5">easeOut5</option>
<option value="easeOutIn5">easeOutIn5</option>
<option value="easeInOut5">easeInOut5</option>
<option value="easeIn5">easeIn5</option>
<option value="" disabled>---</option>
<option value="cosine">cosine</option>
<option value="hermite">hermite</option>
<option value="quintic">quintic</option>
<option value="" disabled>---</option>
<option value="easeOutSine">easeOutSine</option>
<option value="easeOutInSine">easeOutInSine</option>
<option value="easeInSine">easeInSine</option>
<option value="easeOutQuad">easeOutQuad</option>
<option value="easeOutInQuad">easeOutInQuad</option>
<option value="easeInQuad">easeInQuad</option>
<option value="easeOutCubic">easeOutCubic</option>
<option value="easeOutInCubic">easeOutInCubic</option>
<option value="easeInCubic">easeInCubic</option>
<option value="easeOutQuart">easeOutQuart</option>
<option value="easeOutInQuart">easeOutInQuart</option>
<option value="easeInQuart">easeInQuart</option>
<option value="easeOutQuint">easeOutQuint</option>
<option value="easeOutInQuint">easeOutInQuint</option>
<option value="easeInQuint">easeInQuint</option>
<option value="easeOutExpo">easeOutExpo</option>
<option value="easeOutInExpo">easeOutInExpo</option>
<option value="easeInExpo">easeInExpo</option>
<option value="easeOutCirc">easeOutCirc</option>
<option value="easeOutInCirc">easeOutInCirc</option>
<option value="easeInCirc">easeInCirc</option>
<option value="" disabled>---</option>
<option value="easeOutBack">easeOutBack</option>
<option value="easeOutInBack">easeOutInBack</option>
<option value="easeInBack">easeInBack</option>
<option value="easeOutElastic">easeOutElastic</option>
<option value="easeOutInElastic">easeOutInElastic</option>
<option value="easeInElastic">easeInElastic</option>
<option value="easeOutBounce">easeOutBounce</option>
<option value="easeOutInBounce">easeOutInBounce</option>
<option value="easeInBounce">easeInBounce</option>
<option value="" disabled>---</option>
<option value="user-steps">steps (user-defined)</option>
<option value="user-repeat">repeat (user-defined)</option>
</select>
</div>
<div class="lavender label">Precision</div>
<div class="lavender"><input class="controlItem" id="precision" type="range" value="1" min="0" max="20" step="1" /></div>
</div>
<canvas
id="mycanvas"
width="600"
height="400"
data-scrawl-canvas
data-base-background-color="blanchedalmond"
></canvas>
<div class="css-gradients" id="rgb">RGB</div>
<div class="css-gradients" id="hsl">HSL</div>
<div class="css-gradients" id="hwb">HWB</div>
<div class="css-gradients" id="lab">LAB</div>
<div class="css-gradients" id="lch">LCH</div>
<div class="css-gradients" id="oklab">OKLAB</div>
<div class="css-gradients" id="oklch">OKLCH</div>
<p id="reportmessage"></p>
<div class="testinfo">
<h4>Test purpose</h4>
<ul>
<li>Setup a linear gradient, and a block entity which uses the gradient for its fillStyle value</li>
<li>Check that we can successfully manipulate the gradient's start and end coordinates</li>
<li>Check that we can successfully manipulate the palettes's start and end cursors</li>
<li>Check that we can dynamically add and remove color stops</li>
<li>Check that we can ease the gradient, including user-defined easing algorithms</li>
<li>Check that when precision is set to 0, gradient uses the linear easing</li>
<li>Check that when cyclePalette is set to true and the palette's end value is smaller than its start value, the gradient draws itself by going through the 0/999 endpoints</li>
</ul>
<p><b>Touch test:</b> not required</p>
<p><a href="../docs/demo/canvas-003.html">Annotated code</a></p>
</div>
<script src="canvas-003.js" type="module"></script>
</body>
</html>