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Merge branch 'feature/SUPPORT-9329_chart' into develop

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This commit is contained in:
adel.ka 2025-08-20 12:19:42 +03:00
commit 4ade43f2c2
1 changed files with 26 additions and 10 deletions
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36
frontend/src/ts/ervu-dashboard/component/chart/ErvuChartV2.ts
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@ -118,6 +118,9 @@ export class ErvuChartV2 extends Control implements Filterable {
return;
}
const realWidth = canvas.width / (canvas.clientWidth / canvas.offsetWidth);
const realHeight = canvas.height / (canvas.clientHeight / canvas.offsetHeight);
ctx.save();
ctx.resetTransform();
ctx.textAlign = "center";
@ -125,26 +128,39 @@ export class ErvuChartV2 extends Control implements Filterable {
ctx.fillStyle = this.noDataStyle;
const fontMatch = this.noDataFont.match(/^(\d+)px\s+(.+)$/);
const fontSize = parseInt(fontMatch[1], 10);
const fontSize = parseInt(fontMatch[1], 10) * window.devicePixelRatio;
const fontFamily = fontMatch[2];
const text = this.noDataText;
const maxWidth = canvas.width * 0.8;
const minFontSize = Math.max(8, canvas.height * 0.07);
let currentFontSize = Math.min(fontSize, canvas.height / 5);
const padding = 20 * window.devicePixelRatio;
const maxWidth = realWidth - 2 * padding;
const maxHeight = realHeight - 2 * padding;
let currentFontSize = Math.min(
fontSize,
maxHeight,
(maxWidth / text.length) * 1.8
);
const minFontSize = Math.max(8, realHeight * 0.07);
ctx.font = `${currentFontSize}px ${fontFamily}`;
let textWidth = ctx.measureText(text).width;
const textWidth = ctx.measureText(text).width;
while (textWidth > maxWidth && currentFontSize > minFontSize) {
currentFontSize = Math.max(minFontSize, currentFontSize * 0.9);
if (textWidth > maxWidth || currentFontSize > maxHeight) {
const widthRatio = maxWidth / textWidth;
const heightRatio = maxHeight / currentFontSize;
currentFontSize = Math.max(
minFontSize,
currentFontSize * Math.min(widthRatio, heightRatio)
);
ctx.font = `${currentFontSize}px ${fontFamily}`;
textWidth = ctx.measureText(text).width;
}
ctx.fillText(
text,
canvas.width / 2,
canvas.height / 2
realWidth / 2,
realHeight / 2
);
ctx.restore();
}