fillForegroundStyle method

void fillForegroundStyle(Rect bounds, Style style, BlendOption blend)

Fills the foreground style of all cells in bounds using blend.

Implementation

void fillForegroundStyle(Rect bounds, Style style, BlendOption blend) {
  final fgVal = style.foreground?.argb ?? 0;
  final styleMods = style.modifiers;
  final startY = max(0, bounds.y);
  final endY = min(height, bounds.y + bounds.height);
  final startX = max(0, bounds.x);
  final endX = min(width, bounds.x + bounds.width);

  if (startX >= endX || startY >= endY) return;

  for (var y = startY; y < endY; y++) {
    final rowOffset = y * width;
    for (var x = startX; x < endX; x++) {
      final idx = rowOffset + x;
      final attrIdx = idx * 3;
      if (blend == BlendOption.replace) {
        attributes[attrIdx + 0] = fgVal;
        attributes[attrIdx + 1] = style.background?.argb ?? 0;
        attributes[attrIdx + 2] = styleMods;
      } else if (blend == BlendOption.colorOnly) {
        if (fgVal != 0) {
          attributes[attrIdx + 0] = fgVal;
        }
      } else if (blend == BlendOption.addModifiers) {
        attributes[attrIdx + 2] |= styleMods;
      }
    }
  }
}