Ditto/CopyThread.h

#pragma once

#include "ClipboardViewer.h"
#include <afxmt.h>

struct CCopyConfig
{
public:
	// WM_CLIPBOARD_COPIED is sent to this window when a copy is made.
	HWND        m_hClipHandler;
	// true to use PostMessage (asynchronous)
	// false to use SendMessage (synchronous)
	bool        m_bAsyncCopy;
	// true to create a copy of the clipboard contents when it changes
	// false to ignore changes in the clipboard
	bool        m_bCopyOnChange;
	// the supported types which are copied from the clipboard when it changes.
	CClipTypes* m_pSupportedTypes; // ONLY accessed from CopyThread

	CCopyConfig( HWND hClipHandler = NULL,
	             bool bAsyncCopy = false,
				 bool bCopyOnChange = false,
				 CClipTypes* pSupportedTypes = NULL )
	{
		m_hClipHandler = hClipHandler;
		m_bAsyncCopy = bAsyncCopy;
		m_bCopyOnChange = bCopyOnChange;
		m_pSupportedTypes = pSupportedTypes;
	}

	void DeleteTypes()
	{
		if( m_pSupportedTypes )
		{
			delete m_pSupportedTypes;
			m_pSupportedTypes = NULL;
		}
	}
};

class CCopyThread : public CWinThread
{
	DECLARE_DYNCREATE(CCopyThread)
public:
	CCopyThread();
	virtual ~CCopyThread();

// Attributes
public:

// Operations
public:

	bool m_bQuit;
	bool m_connectOnStartup;

	CCriticalSection m_cs;

	// CopyThread Local (accessed from this CopyThread)
	// window owned by this thread which handles clipboard viewer messages
	CClipboardViewer*   m_pClipboardViewer; // permanent during lifetime of thread
	CCopyConfig         m_LocalConfig;

	// Called within Copy Thread:
	void OnClipboardChange(); // called by ClipboardViewer
	void SyncConfig(); // safely syncs m_LocalConfig with m_SharedConfig

// Shared (use thread-safe access functions below)
	CCopyConfig         m_SharedConfig; 
	bool                m_bConfigChanged; // true if m_SharedConfig was changed.

	// Called within Main thread:
	bool IsClipboardViewerConnected();
	bool GetConnectCV();
	void SetConnectCV(bool bConnect);

	void SetSupportedTypes(CClipTypes* pTypes); // CopyThread will own pTypes
	HWND SetClipHandler(HWND hWnd); // returns previous value
	HWND GetClipHandler();
	bool SetCopyOnChange(bool bVal); // returns previous value
	bool GetCopyOnChange();
	bool SetAsyncCopy(bool bVal); // returns previous value
	bool GetAsyncCopy();

	void Init(CCopyConfig cfg);
	bool Quit();

	virtual BOOL InitInstance();
	virtual int ExitInstance();
};