Method setupScroll

packages/fairygui/src/core/GComponent.ts:677–682

* Setup scroll pane from buffer * 从缓冲区设置滚动面板

(_buffer: ByteBuffer)

     * 从缓冲区设置滚动面板
     */
    protected setupScroll(_buffer: ByteBuffer): void {
        // ScrollPane setup will be implemented when needed
        // For now, create a basic scroll pane
        const { ScrollPane } = require('../scroll/ScrollPane');
        this._scrollPane = new ScrollPane(this);
    }

    /**
     * Setup overflow behavior