render method

@override void render(Rect area, Buffer buffer, RenderContext ctx)

Implementation

@override
void render(Rect area, Buffer buffer, RenderContext ctx) {
  if (area.isEmpty) return;
  if (fill != null) {
    buffer.fillStyle(area, fill!);
  }
  final bs = borderStyle ?? ctx.theme.borders.style;
  final chars = bs.chars;
  final stroke = borderColor ?? ctx.theme.borders.strokeStyle;

  if (sides.hasTop && area.height >= 1) {
    for (var x = 0; x < area.width; x++) {
      buffer.setChar(area.x + x, area.y, chars.top, style: stroke);
    }
  }
  if (sides.hasBottom && area.height >= 2) {
    for (var x = 0; x < area.width; x++) {
      buffer.setChar(area.x + x, area.bottom - 1, chars.bottom,
          style: stroke);
    }
  }
  if (sides.hasLeft && area.width >= 1) {
    for (var y = 0; y < area.height; y++) {
      buffer.setChar(area.x, area.y + y, chars.left, style: stroke);
    }
  }
  if (sides.hasRight && area.width >= 2) {
    for (var y = 0; y < area.height; y++) {
      buffer.setChar(area.right - 1, area.y + y, chars.right, style: stroke);
    }
  }
  if (sides == BorderSides.all && area.width >= 2 && area.height >= 2) {
    buffer.setChar(area.x, area.y, chars.topLeft, style: stroke);
    buffer.setChar(area.right - 1, area.y, chars.topRight, style: stroke);
    buffer.setChar(area.x, area.bottom - 1, chars.bottomLeft, style: stroke);
    buffer.setChar(area.right - 1, area.bottom - 1, chars.bottomRight,
        style: stroke);
  }

  if (title != null && sides.hasTop && area.width > 2) {
    final ts = titleStyle ?? ctx.theme.text.title;
    final padded = ' $title ';
    final maxW = area.width - 2;
    final clipped = padded.length > maxW ? padded.substring(0, maxW) : padded;
    final tx = switch (titleAlign) {
      TitleAlign.left => area.x + 1,
      TitleAlign.center => area.x + (area.width - clipped.length) ~/ 2,
      TitleAlign.right => area.right - 1 - clipped.length,
    };
    buffer.writeText(tx, area.y, clipped, style: ts, maxWidth: maxW);
  }

  if (child != null) {
    ctx.draw(child!, inner(area));
  }
}