123

Editor/XT/Include/XTWndShadow.h

@@ -0,0 +1,148 @@
+// XTWndShadow.h: interface for the CXTWndShadow class.
+//
+// This file is a part of the Xtreme Toolkit for MFC.
+// <20>1998-2003 Codejock Software, All Rights Reserved.
+//
+// This source code can only be used under the terms and conditions 
+// outlined in the accompanying license agreement.
+//
+// support@codejock.com
+// http://www.codejock.com
+//
+//////////////////////////////////////////////////////////////////////
+
+#if !defined(__XTWNDSHADOW_H__)
+#define __XTWNDSHADOW_H__
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+typedef   BOOL  (WINAPI *LayeredProc)  
+(
+  HWND hwnd,             // handle to layered window
+  HDC hdcDst,            // handle to screen DC
+  POINT *pptDst,         // new screen position
+  SIZE *psize,           // new size of the layered window
+  HDC hdcSrc,            // handle to surface DC
+  POINT *pptSrc,         // layer position
+  COLORREF crKey,        // color key
+  BLENDFUNCTION *pblend, // blend function
+  DWORD dwFlags          // options
+);
+
+class CXTShadowWnd;
+
+typedef CList<CXTShadowWnd*, CXTShadowWnd*> CXTShadowList;
+
+// Uncomment this line to disable alpha shadow. DEBUG ONLY
+// #define NOALPHASHADOW
+
+//////////////////////////////////////////////////////////////////////
+// CXTShadowsManager is a stand alone internal Toolkit class.  It is used to
+// manage shadows for popup menus.  
+
+class CXTShadowsManager
+{
+	class CShadowList : public CXTShadowList
+	{
+	public:
+		void AddShadow(CXTShadowWnd* pShadow);
+		void RemoveShadow(CXTShadowWnd* pShadow);
+		friend class CXTShadowWnd;
+	};
+
+	CXTShadowsManager(void);
+
+public:
+	~CXTShadowsManager(void);
+
+	void SetShadow(HWND hWnd, const CRect& rcExclude = CRect(0, 0, 0, 0));
+	void SetShadow(CRect rc, HWND hwndHook);
+
+private:
+
+	BOOL AlphaShadow()
+	{
+	#ifdef NOALPHASHADOW
+		return FALSE;		
+	#endif
+
+		return (UpdateLayeredWindow != NULL);
+	}
+	BOOL PseudoShadow()
+	{
+		if (AlphaShadow())
+			return FALSE;
+
+		return !xtAfxData.bUseSolidShadows;
+	}
+	void DestroyShadow(CXTShadowWnd*);
+	CXTShadowWnd* CreateShadow(BOOL bHoriz, HWND hWnd, CRect rcExclude);
+	CXTShadowWnd* CreateShadow(BOOL bHoriz, CRect rc, CRect rcExclude, HWND hwndHook);
+
+private:
+	
+	HMODULE								m_hLib;
+	LayeredProc							UpdateLayeredWindow;
+	CShadowList							m_lstShadow;
+	static CXTShadowsManager			s_managerInstance;
+	CList<CXTShadowWnd*, CXTShadowWnd*> m_lstPool;
+
+	friend class CXTShadowsManager* XTShadowsManager();
+	friend class CXTShadowWnd;
+
+};
+
+//////////////////////////////////////////////////////////////////////
+
+AFX_INLINE CXTShadowsManager* XTShadowsManager() {
+	return &CXTShadowsManager::s_managerInstance;
+}
+
+//////////////////////////////////////////////////////////////////////
+
+class CXTShadowWnd : public CWnd
+{
+	friend class CXTShadowsManager;
+	friend class CXTShadowsManager::CShadowList;
+	friend class CXTShadowHook;
+
+private:
+	CXTShadowWnd();
+	BOOL  Create(BOOL bHoriz, CRect rcWindow);
+	void LongShadow(CXTShadowsManager::CShadowList* pList);
+	BOOL ExcludeRect(CRect rcExclude);
+
+	int OnHookMessage(UINT nMessage, WPARAM& wParam, LPARAM& lParam);
+	
+	void DrawPseudoShadow(CDC* pDC, CRect& rcClient);
+	void ComputePseudoShadow(CDC* pDC, CRect& rcShadow);
+	void CreatePseudoShadow();
+
+private:
+	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
+	afx_msg void OnPaint();
+	afx_msg void OnSize(UINT nType, int cx, int cy);	
+	afx_msg UINT OnNcHitTest(CPoint point);
+	afx_msg void OnParentPosChanged();
+	afx_msg void OnTimer(UINT_PTR nID);
+
+	DECLARE_MESSAGE_MAP();
+
+private:
+
+	int			m_nWidth;
+	BOOL		m_bAutoPosition;
+	BOOL		m_bHoriz;
+	BOOL		m_bAlphaShadow;
+	BOOL		m_bPseudoShadow;
+	HWND		m_hwndHook;
+	CRect		m_rcExclude;
+	CXTMemDC*	m_pShadowDC;
+	CXTWndHook* m_pHook;
+};
+
+//////////////////////////////////////////////////////////////////////
+
+#endif // !defined(__XTWNDSHADOW_H__)