resize method

@override void resize(int width, int height)

Resizes the renderer viewport and updates layout/buffers.

Implementation

@override
void resize(int width, int height) {
  _buffer = Buffer.blank(width, height);
  final style = Style(foreground: const Color(100, 200, 255));
  if (width == 1 && height == 1) {
    _buffer!.writeString(0, 0, '🔎', style);
    return;
  }

  for (var y = 0; y < height; y++) {
    for (var x = 0; x < width; x++) {
      String? char;
      if (x == 0 && y == 0) {
        char = '┌';
      } else if (x == width - 1 && y == 0) {
        char = '┐';
      } else if (x == 0 && y == height - 1) {
        char = '└';
      } else if (x == width - 1 && y == height - 1) {
        char = '┘';
      } else if (x == 0 || x == width - 1) {
        char = '│';
      } else if (y == 0 || y == height - 1) {
        char = '─';
      }

      if (char != null) {
        _buffer!.setAttributes(
          x,
          y,
          char: char,
          fg: style.foreground?.argb ?? 0,
          bg: style.background?.argb ?? 0,
          modifiers: style.modifiers,
        );
      } else {
        _buffer!.setAttributes(x, y, char: ' ', fg: 0, bg: 0, modifiers: 0);
      }
    }
  }

  // Use writeString to handle double-width character properly
  _buffer!.writeString(width ~/ 2, height ~/ 2, '🔎', style);
}