www.pudn.com > TreePropSheetEx.rar > ResizableGrip.h

// ResizableGrip.h: interface for the CResizableGrip class. 
// 
///////////////////////////////////////////////////////////////////////////// 
// 
// Copyright (C) 2000-2002 by Paolo Messina 
// (http://www.geocities.com/ppescher - ppescher@yahoo.com) 
// 
// The contents of this file are subject to the Artistic License (the "License"). 
// You may not use this file except in compliance with the License.  
// You may obtain a copy of the License at: 
// http://www.opensource.org/licenses/artistic-license.html 
// 
// If you find this code useful, credits would be nice! 
// 
///////////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_RESIZABLEGRIP_H__INCLUDED_) 
#define AFX_RESIZABLEGRIP_H__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
class CResizableGrip   
{ 
private: 
	class CSizeGrip : public CScrollBar 
	{ 
	public: 
		CSizeGrip() 
		{ 
			m_bTransparent = FALSE; 
			m_bTriangular = FALSE; 
		} 
 
		void SetTriangularShape(BOOL bEnable); 
		void SetTransparency(BOOL bActivate); 
 
		BOOL IsRTL();			// right-to-left layout support 
 
		virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 
 
		SIZE m_size;			// holds grip size 
 
	protected: 
		virtual BOOL PreCreateWindow(CREATESTRUCT& cs); 
 
		BOOL m_bTriangular;		// triangular shape active 
		BOOL m_bTransparent;	// transparency active 
 
		// memory DCs and bitmaps for transparent grip 
		CDC m_dcGrip, m_dcMask; 
		CBitmap m_bmGrip, m_bmMask; 
	}; 
 
	CSizeGrip m_wndGrip;		// grip control 
	int m_nShowCount;			// support for hiding the grip 
 
protected: 
	// create a size grip, with options 
	BOOL CreateSizeGrip(BOOL bVisible = TRUE, 
		BOOL bTriangular = TRUE, BOOL bTransparent = FALSE); 
 
	BOOL IsSizeGripVisible();	// TRUE if grip is set to be visible 
	void SetSizeGripVisibility(BOOL bVisible);	// set default visibility 
	void UpdateSizeGrip();		// update the grip's visibility and position 
	void ShowSizeGrip(DWORD* pStatus, DWORD dwMask = 1);	// temp show the size grip 
	void HideSizeGrip(DWORD* pStatus, DWORD dwMask = 1);	// temp hide the size grip 
	BOOL SetSizeGripBkMode(int nBkMode);		// like CDC::SetBkMode 
	void SetSizeGripShape(BOOL bTriangular); 
 
	virtual CWnd* GetResizableWnd() = 0; 
 
public: 
	CResizableGrip(); 
	virtual ~CResizableGrip(); 
}; 
 
#endif // !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)