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) * feat: Draw tooltips with point styles. Closes chartjs#7774 * chore: Add tooltip usePointStyle docs * chore: Add tests and visual tests for tooltip usePointStyle * chore: Update typescript with tooltip usePointStyle
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<!doctype html> | ||
<html> | ||
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<head> | ||
<title>Tooltip Point Style</title> | ||
<script src="../../dist/chart.min.js"></script> | ||
<script src="../utils.js"></script> | ||
<style> | ||
canvas{ | ||
-moz-user-select: none; | ||
-webkit-user-select: none; | ||
-ms-user-select: none; | ||
} | ||
</style> | ||
</head> | ||
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<body> | ||
<div style="width:75%;"> | ||
<canvas id="canvas"></canvas> | ||
</div> | ||
<br> | ||
<br> | ||
<button id="randomizeData">Randomize Data</button> | ||
<button id="addDataset">Add Dataset</button> | ||
<button id="removeDataset">Remove Dataset</button> | ||
<button id="addData">Add Data</button> | ||
<button id="removeData">Remove Data</button> | ||
<script> | ||
var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']; | ||
var config = { | ||
type: 'line', | ||
data: { | ||
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'], | ||
datasets: [{ | ||
label: 'Triangles', | ||
backgroundColor: window.chartColors.red, | ||
borderColor: window.chartColors.red, | ||
pointStyle: 'triangle', | ||
pointRadius: 6, | ||
data: [ | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor() | ||
], | ||
fill: false, | ||
}, { | ||
label: 'Circles', | ||
fill: false, | ||
backgroundColor: window.chartColors.blue, | ||
borderColor: window.chartColors.blue, | ||
pointStyle: 'circle', | ||
pointRadius: 6, | ||
data: [ | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor() | ||
], | ||
}, { | ||
label: 'Stars', | ||
fill: false, | ||
backgroundColor: window.chartColors.green, | ||
borderColor: window.chartColors.green, | ||
pointStyle: 'star', | ||
pointRadius: 6, | ||
data: [ | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor(), | ||
randomScalingFactor() | ||
], | ||
}] | ||
}, | ||
options: { | ||
responsive: true, | ||
title: { | ||
display: true, | ||
text: 'Tooltip Point Styles' | ||
}, | ||
tooltips: { | ||
mode: 'index', | ||
intersect: false, | ||
usePointStyle: true, | ||
}, | ||
legend: { | ||
labels: { | ||
usePointStyle: true | ||
} | ||
}, | ||
hover: { | ||
mode: 'nearest', | ||
intersect: true | ||
}, | ||
scales: { | ||
x: { | ||
display: true, | ||
scaleLabel: { | ||
display: true, | ||
labelString: 'Month' | ||
} | ||
}, | ||
y: { | ||
display: true, | ||
scaleLabel: { | ||
display: true, | ||
labelString: 'Value' | ||
} | ||
} | ||
} | ||
} | ||
}; | ||
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window.onload = function() { | ||
var ctx = document.getElementById('canvas').getContext('2d'); | ||
window.myLine = new Chart(ctx, config); | ||
}; | ||
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document.getElementById('randomizeData').addEventListener('click', function() { | ||
config.data.datasets.forEach(function(dataset) { | ||
dataset.data = dataset.data.map(function() { | ||
return randomScalingFactor(); | ||
}); | ||
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}); | ||
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window.myLine.update(); | ||
}); | ||
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var colorNames = Object.keys(window.chartColors); | ||
var pointStyles = ['circle', 'triangle', 'rectRounded', 'rect', 'rectRot', 'cross', 'star', 'line', 'dash']; | ||
document.getElementById('addDataset').addEventListener('click', function() { | ||
var colorName = colorNames[config.data.datasets.length % colorNames.length]; | ||
var newColor = window.chartColors[colorName]; | ||
var newPointStyle = pointStyles[Math.floor(Math.random() * pointStyles.length)]; | ||
var newDataset = { | ||
label: 'Dataset ' + config.data.datasets.length, | ||
backgroundColor: newColor, | ||
borderColor: newColor, | ||
pointStyle: newPointStyle, | ||
pointRadius: 6, | ||
data: [], | ||
fill: false | ||
}; | ||
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for (var index = 0; index < config.data.labels.length; ++index) { | ||
newDataset.data.push(randomScalingFactor()); | ||
} | ||
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config.data.datasets.push(newDataset); | ||
window.myLine.update(); | ||
}); | ||
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document.getElementById('addData').addEventListener('click', function() { | ||
if (config.data.datasets.length > 0) { | ||
var month = MONTHS[config.data.labels.length % MONTHS.length]; | ||
config.data.labels.push(month); | ||
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config.data.datasets.forEach(function(dataset) { | ||
dataset.data.push(randomScalingFactor()); | ||
}); | ||
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window.myLine.update(); | ||
} | ||
}); | ||
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document.getElementById('removeDataset').addEventListener('click', function() { | ||
config.data.datasets.splice(0, 1); | ||
window.myLine.update(); | ||
}); | ||
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document.getElementById('removeData').addEventListener('click', function() { | ||
config.data.labels.splice(-1, 1); // remove the label first | ||
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config.data.datasets.forEach(function(dataset) { | ||
dataset.data.pop(); | ||
}); | ||
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window.myLine.update(); | ||
}); | ||
</script> | ||
</body> | ||
|
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</html> |
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