gzdoom/wadsrc/static/zscript/menu/menuitembase.txt

//=============================================================================
//
// base class for menu items
//
//=============================================================================

class MenuItemBase : Object native
{
	protected int mXpos, mYpos;
	protected Name mAction;

	bool mEnabled;

	protected void Init(int xpos = 0, int ypos = 0, Name actionname = 'None')
	{
		mXpos = xpos;
		mYpos = ypos;
		mAction = actionname;
		mEnabled = true;
	}

	virtual bool CheckCoordinate(int x, int y) { return false; }
	virtual void Ticker() {}
	virtual void Drawer(bool selected) {}
	virtual bool Selectable() {return false; }
	virtual bool Activate() { return false; }
	virtual Name, int GetAction() { return mAction, 0; }
	virtual bool SetString(int i, String s) { return false; }
	virtual bool, String GetString(int i) { return false, ""; }
	virtual bool SetValue(int i, int value) { return false; }
	virtual bool, int GetValue(int i)  { return false, 0; }
	virtual void Enable(bool on) { mEnabled = on; }
	virtual bool MenuEvent (int mkey, bool fromcontroller) { return false; }
	virtual bool MouseEvent(int type, int x, int y) { return false; }
	virtual bool CheckHotkey(int c) { return false; }
	virtual int GetWidth() { return 0; }
	virtual void OffsetPositionY(int ydelta) { mYpos += ydelta; }
	virtual int GetY() { return mYpos; }
	virtual int GetX() { return mXpos; }
	virtual void SetX(int x) { mXpos = x; }
	
	/*
	virtual void DrawSelector(int xofs, int yofs, TextureID tex)
	{
		if (tex.isNull())
		{
			if ((Menu.MenuTime() % 8) < 6)
			{
				screen.DrawText(ConFont, OptionSettings.mFontColorSelection,
					(mXpos + xofs - 160) * CleanXfac + screen.GetWidth() / 2,
					(mYpos + yofs - 100) * CleanYfac + screen.GetHeight() / 2,
					"\xd",
					DTA_CellX, 8 * CleanXfac,
					DTA_CellY, 8 * CleanYfac,
					TAG_DONE);
			}
		}
		else
		{
			screen.DrawTexture (tex, mXpos + xofs, mYpos + yofs, DTA_Clean, true, TAG_DONE);
		}
	}
	*/
	
}