Загрузка данных


function drawTextAlongLine(
  context: CanvasRenderingContext2D,
  params: {
    startX: number;
    startY: number;
    endX: number;
    endY: number;
    text: string;
    fontSize: number;
    isBold: boolean;
    isItalic: boolean;
    textColor: string;
    horizontalPixelRatio: number;
    verticalPixelRatio: number;
  },
): void {
  const {
    startX,
    startY,
    endX,
    endY,
    text,
    fontSize,
    isBold,
    isItalic,
    textColor,
    verticalPixelRatio,
  } = params;

  const lines = text.split('\n');
  const safeFontSize = Math.max(1, fontSize);
  const fontSizePx = safeFontSize * verticalPixelRatio;
  const lineHeight = safeFontSize * UI.textLineHeightMultiplier * verticalPixelRatio;

  const dx = endX - startX;
  const dy = endY - startY;

  let angle = Math.atan2(dy, dx);

  if (angle > Math.PI / 2 || angle < -Math.PI / 2) {
    angle += Math.PI;
  }

  const centerX = (startX + endX) / 2;
  const centerY = (startY + endY) / 2;

  const fontWeight = isBold ? '700 ' : '';
  const fontStyle = isItalic ? 'italic ' : '';

  context.save();
  context.translate(centerX, centerY);
  context.rotate(angle);

  context.font = `${fontStyle}${fontWeight}${fontSizePx}px Inter, sans-serif`;
  context.fillStyle = textColor;
  context.textAlign = 'center';
  context.textBaseline = 'middle';

  const blockHeight = lines.length * lineHeight;
  const textOffset = UI.textOffset * verticalPixelRatio;
  const textCenterY = -(blockHeight / 2 + textOffset);
  const startLineY = textCenterY - blockHeight / 2 + lineHeight / 2;

  lines.forEach((line, index) => {
    context.fillText(line, 0, startLineY + index * lineHeight);
  });

  context.restore();
}