Method getViewportCharEnd

src/utils/Cursor.ts:168–176

(maxVisibleLines?: number)

  }

  getViewportCharEnd(maxVisibleLines?: number): number {
    const startLine = this.getViewportStartLine(maxVisibleLines)
    const allLines = this.measuredText.getWrappedLines()
    if (maxVisibleLines === undefined || maxVisibleLines <= 0)
      return this.text.length
    const endLine = Math.min(allLines.length, startLine + maxVisibleLines)
    if (endLine >= allLines.length) return this.text.length
    return allLines[endLine]?.startOffset ?? this.text.length
  }

  render(
    cursorChar: string,