Method viewportRowToAbsolute

lib/selection-manager.ts:82–86

* Convert viewport row to absolute buffer row * Absolute row is an index into combined buffer: scrollback (0 to len-1) + screen (len to len+rows-1)

(viewportRow: number)

   * Absolute row is an index into combined buffer: scrollback (0 to len-1) + screen (len to len+rows-1)
   */
  private viewportRowToAbsolute(viewportRow: number): number {
    const scrollbackLength = this.wasmTerm.getScrollbackLength();
    const viewportY = this.getViewportY();
    return scrollbackLength + viewportRow - viewportY;
  }

  /**
   * Convert absolute buffer row to viewport row (may be outside visible range)