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chore(client): improve chart rendering

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This commit is contained in:
syuilo 2022-01-28 11:19:18 +09:00
parent e4bd65f833
commit e355b820e5
1 changed files with 22 additions and 0 deletions
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22
packages/client/src/components/chart.vue
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@ -143,6 +143,7 @@ export default defineComponent({
}
const gridColor = defaultStore.state.darkMode ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)';
const vLineColor = defaultStore.state.darkMode ? 'rgba(255, 255, 255, 0.2)' : 'rgba(0, 0, 0, 0.2)';
// フォントカラー
Chart.defaults.color = getComputedStyle(document.documentElement).getPropertyValue('--fg');
@ -255,6 +256,27 @@ export default defineComponent({
},
},
},
plugins: [{
id: 'vLine',
beforeDraw(chart, args, options) {
if (chart.tooltip._active && chart.tooltip._active.length) {
const activePoint = chart.tooltip._active[0];
const ctx = chart.ctx;
const x = activePoint.element.x;
const topY = chart.scales.y.top;
const bottomY = chart.scales.y.bottom;
ctx.save();
ctx.beginPath();
ctx.moveTo(x, bottomY);
ctx.lineTo(x, topY);
ctx.lineWidth = 1;
ctx.strokeStyle = vLineColor;
ctx.stroke();
ctx.restore();
}
}
}]
});
};