nim_duilib/duilib/Utils/DpiManager.h

#ifndef UI_UTILS_DPIMANAGER_H_
#define UI_UTILS_DPIMANAGER_H_

#pragma once

namespace ui
{
/** @class DpiManager
  * @brief DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @copyright (c) 2016, NetEase Inc. All rights reserved
  * @author Redrain
  * @date 2016/10/10
  */
class UILIB_API DpiManager
{
public:
	static DpiManager* GetInstance();

	/**
	* @brief <EFBFBD><EFBFBD>ȡϵͳDPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @return UINT DPI
	*/
	static UINT GetSystemDPI();

	/**
	* @brief <EFBFBD><EFBFBD>ȡij<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] HMONITOR<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	* @return UINT DPI
	*/
	static UINT GetMonitorDPI(HMONITOR hMonitor);

	/**
	* @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @return UINT DPI
	*/
	static UINT GetMainMonitorDPI();
		
	/**
	* @brief <EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡDPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD>֪Ҳ<EFBFBD><EFBFBD>Ч
	* @return UINT DPI
	*/
	static UINT GetDPIFromRegistry();

	/**
	* @brief <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>
	* @return bool true <EFBFBD>ǣ<EFBFBD>false <EFBFBD><EFBFBD>
	*/
	bool IsAdaptDPI();

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>Ĭ<EFBFBD>ϲ<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	* @return bool true <EFBFBD><EFBFBD><EFBFBD>óɹ<EFBFBD><EFBFBD><EFBFBD>false <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD><EFBFBD>
	*/
	bool SetAdaptDPI();

	/**
	* @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD>
	* @return UINT	<EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD>
	*/
	UINT GetScale();

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPIֵ<EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>űȣ<EFBFBD>ֻ<EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] uDPI DPIֵ
	* @return void	<EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD>ֵ
	*/
	void SetScale(UINT uDPI);

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] iValue <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	* @return int	<EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD>ֵ
	*/
	int ScaleInt(int &iValue);

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>SIZE<EFBFBD><EFBFBD>ֻ<EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] pSize SIZEָ<EFBFBD><EFBFBD>
	* @return void	<EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD>ֵ
	*/
	void ScaleSize(SIZE &size);

	void ScaleSize(CSize &size);

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>POINT<EFBFBD><EFBFBD>ֻ<EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] pSize SIZEָ<EFBFBD><EFBFBD>
	* @return void	<EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD>ֵ
	*/
	void ScalePoint(POINT &point);

	void ScalePoint(CPoint &point);

	/**
	* @brief <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>RECT<EFBFBD><EFBFBD>ֻ<EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DPI<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
	* @param[in] pSize SIZEָ<EFBFBD><EFBFBD>
	* @return void	<EFBFBD>޷<EFBFBD><EFBFBD><EFBFBD>ֵ
	*/
	void ScaleRect(RECT &rect);

	void ScaleRect(UiRect &rect);

private:
	DpiManager();
	~DpiManager() {};	
	DpiManager(const DpiManager&) = delete;
	DpiManager& operator = (const DpiManager&) = delete;

private:
	int		m_nScaleFactor;
	bool	m_bAdaptDPI;
};
}
#endif //UI_UTILS_DPIMANAGER_H_