nim_duilib/duilib/Control/Combo.h

#ifndef UI_CONTROL_COMBO_H_
#define UI_CONTROL_COMBO_H_

#pragma once

namespace ui 
{

class CComboWnd;
class UILIB_API Combo : public Box
{
    friend class CComboWnd;
public:
	Combo();
	Combo(const Combo& r) = delete;
	Combo& operator=(const Combo& r) = delete;

	/// <20><>д<EFBFBD><D0B4><EFBFBD>෽<EFBFBD><E0B7BD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD>Ի<EFBFBD><D4BB><EFBFBD><EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	virtual bool Add(Control* pControl) override;
	virtual bool Remove(Control* pControl) override;
	virtual bool RemoveAt(std::size_t iIndex) override;
	virtual void RemoveAll() override;
	virtual void Activate() override;
	virtual void SetAttribute(const std::wstring& strName, const std::wstring& strValue) override;
	virtual void PaintText(IRenderContext* pRender) override;

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ǰѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
	 */
    std::wstring GetText() const;

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> List <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> List <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>
	 */
	ListBox* GetListBox() { return m_pLayout.get(); }

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
	 */
    std::wstring GetDropBoxAttributeList();

	/**
	 * @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
	 * @param[in] pstrList ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> XML <EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>
	 * @return <EFBFBD><EFBFBD>
	 */
    void SetDropBoxAttributeList(const std::wstring& pstrList);

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
	 */
    CSize GetDropBoxSize() const;

	/**
	 * @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
	 * @param[in] szDropBox Ҫ<EFBFBD><EFBFBD><EFBFBD>õĴ<EFBFBD>С<EFBFBD><EFBFBD>Ϣ
	 * @return <EFBFBD><EFBFBD>
	 */
    void SetDropBoxSize(CSize szDropBox);
	
	/**
	 * @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD> Combobox <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD>
	 * @param[in] top Ϊ true <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>false ΪĬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD>
	 */
	void SetPopupTop(bool top) { m_bPopupTop = top; };
	
	/**
	 * @brief <EFBFBD>ж<EFBFBD> Combobox <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD> true <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ false
	 */
	bool IsPopupTop() const { return m_bPopupTop; };

	/**
	 * @brief ѡ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param[in] iIndex Ҫѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD> true <EFBFBD><EFBFBD>ʾ<EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ false
	 */
	bool SelectItem(int iIndex);

	/**
	 * @brief <EFBFBD><EFBFBD>ȡָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD>
	 * @param[in] iIndex Ҫ<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD>ؿؼ<EFBFBD>ָ<EFBFBD><EFBFBD>
	 */
	Control* GetItemAt(int iIndex);

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ǰѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	int GetCurSel() const { return m_iCurSel; }

	/**
	 * @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 */
	virtual int GetCount() const { return m_pLayout->GetCount(); }
    
	/**
	 * @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>
	 * @param[in] callback <EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD>󴥷<EFBFBD><EFBFBD>Ļص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @return <EFBFBD><EFBFBD>
	 */
	void AttachSelect(const EventCallback& callback) { m_pLayout->AttachSelect(callback); }

private:
	/**
	 * @brief Ĭ<EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	 * @param[in] args <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>
	 * @return ʼ<EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD> true
	 */
	bool OnSelectItem(EventArgs* args);

protected:
    CComboWnd *m_pWindow;
	std::unique_ptr<ListBox> m_pLayout;
    int m_iCurSel;  
	ControlStateType m_uButtonState;
	CSize m_szDropBox;
	std::wstring m_sDropBoxAttributes;
	bool m_bPopupTop;
};

} // namespace ui

#endif // UI_CONTROL_COMBO_H_