renderColoredContent function

String renderColoredContent(String content, Color color)

Implementation

String renderColoredContent(String content, Color color) {
  if (content.isEmpty) return '';
  final bgColor = colorToUvColor(color);
  if (bgColor == null) return content;

  final w = Layout.getWidth(content);
  final h = Layout.getHeight(content);
  if (w == 0 || h == 0) return content;

  final canvas = Canvas(w, h);
  final bgStyle = UvStyle(bg: bgColor);

  // Fill background.
  final bgCell = Cell(content: ' ', width: 1, style: bgStyle);
  for (var y = 0; y < h; y++) {
    for (var x = 0; x < w; x++) {
      canvas.setCell(x, y, bgCell.clone());
    }
  }

  // Draw content on top.
  drawStyledContent(
    canvas,
    content,
    0,
    0,
    bgStyle,
    contentWidth: w,
    contentHeight: h,
  );
  return canvas.render();
}