dispose method

@override void dispose()

Disposes of renderer resources.

Implementation

@override
void dispose() {
  // Release transient frame storage. Logical print history is different:
  // both log queues are bounded by _maxPrintLines and survive same-instance
  // terminal release/restore so user-visible logs are not lost.
  _pendingView = '';
  _dirty = false;
  _inlineCapture.clear();
  _fullscreenCapture.clear();
  _inlineSink = null;
  _inlineNeedsFullClear = false;
  // The inline log history is persistent across renderer teardown. A
  // dispose clears the visible region, so a same-instance reinitialization
  // (used by terminal release/restore) must replay that history on its first
  // frame rather than treating it as already present.
  _inlineNeedsLogReplay =
      _options.isInline && _options.uiAnchor == UiAnchor.bottom;
  if (!_initialized) return;

  final isInline = _options.isInline;
  final isBounded = _options.isBounded;

  if (!isBounded) {
    terminal.write(uv_graphics.deleteAllRetainedGraphics());
    _lastGraphicsFrame = uv_graphics.TerminalGraphicsFrame.empty;
  } else {
    terminal.write(Ansi.resetScrollRegion);
    if (terminal.supportsAnsi) {
      _clearInlineRegion();
    }
    if (isInline && _options.uiAnchor == UiAnchor.bottom) {
      terminal.write(Ansi.cursorTo(terminal.height, 1));
    }
  }
  if (_options.hideCursor) {
    terminal.showCursor();
  }
  if (!isBounded && _options.altScreen) {
    terminal.exitAltScreen();
  }
  _renderer?.dispose();
  _renderer = null;
  _screen?.dispose();
  _screen = null;
  _nativeFrameCache = null;
  _nativeDeltaCache = null;
  _nativeCellDeltaCache = null;
  _previousNativeFrameForCellDelta = null;
  _initialized = false;
}