ctrllibrarythumbview.h

著名的下载软件核心Shareaza

//
// CtrlLibraryThumbView.h
//
// Copyright (c) Shareaza Development Team, 2002-2004.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza is free software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Shareaza is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#if !defined(AFX_CTRLLIBRARYTHUMBVIEW_H__700A82CF_4E9C_4BE0_9EBA_DF2E49AC378F__INCLUDED_)
#define AFX_CTRLLIBRARYTHUMBVIEW_H__700A82CF_4E9C_4BE0_9EBA_DF2E49AC378F__INCLUDED_

#pragma once

#include "CtrlLibraryFileView.h"

class CLibraryThumbItem;
class CLibraryFile;


class CLibraryThumbView : public CLibraryFileView
{
// Construction
public:
	CLibraryThumbView();
	virtual ~CLibraryThumbView();

	DECLARE_DYNCREATE(CLibraryThumbView)

// Attributes
protected:
	CCriticalSection	m_pSection;
	HANDLE				m_hThread;
	BOOL				m_bThread;
	DWORD				m_nInvalidate;
	BOOL				m_bRush;
protected:
	CSize				m_szThumb;
	CSize				m_szBlock;
	int					m_nColumns;
	int					m_nRows;
protected:
	CLibraryThumbItem**	m_pList;
	int					m_nCount;
	int					m_nBuffer;
	int					m_nScroll;
protected:
	int					m_nSelected;
	CLibraryThumbItem*	m_pFocus;
	CLibraryThumbItem*	m_pFirst;
	CPtrList			m_pSelThumb;
	BOOL				m_bDrag;
	CPoint				m_ptDrag;

// Operations
public:
	virtual void		Update();
	virtual BOOL		Select(DWORD nObject);
	virtual DWORD		HitTestIndex(const CPoint& point) const;
protected:
	void				Clear();
	int					GetThumbIndex(CLibraryThumbItem* pThumb) const;
	BOOL				Select(CLibraryThumbItem* pThumb, TRISTATE bSelect = TS_TRUE);
	BOOL				DeselectAll(CLibraryThumbItem* pThumb = NULL);
	BOOL				SelectTo(CLibraryThumbItem* pThumb);
	void				SelectTo(int nDelta);
protected:
	void				UpdateScroll();
	void				ScrollBy(int nDelta);
	void				ScrollTo(int nDelta);
	CLibraryThumbItem*	HitTest(const CPoint& point) const;
	BOOL				GetItemRect(CLibraryThumbItem* pThumb, CRect* pRect);
	void				StartDragging(CPoint& ptMouse);
	CImageList*			CreateDragImage(const CPoint& ptMouse);
protected:
	void		StartThread();
	void		StopThread();
	void		OnRun();

protected:
	static int	SortList(LPCVOID pA, LPCVOID pB);
	static UINT	ThreadStart(LPVOID pParam);

// Overrides
public:
	//{{AFX_VIRTUAL(CLibraryThumbView)
	protected:
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CLibraryThumbView)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg void OnDestroy();
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg void OnPaint();
	afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
	afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
	afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
	afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
	afx_msg void OnTimer(UINT nIDEvent);
	//}}AFX_MSG

	DECLARE_MESSAGE_MAP()

};


class CLibraryThumbItem
{
// Construction
public:
	CLibraryThumbItem(CLibraryFile* pFile);
	virtual ~CLibraryThumbItem();

// Attributes
public:
	DWORD	m_nIndex;
	DWORD	m_nCookie;
	CString	m_sText;
	BOOL	m_bShared;
public:
	BOOL	m_bSelected;
	int		m_nThumb;
	CBitmap	m_bmThumb;
	CSize	m_szThumb;
	int		m_nShell;

	enum { thumbWaiting, thumbValid, thumbError };

// Operations
public:
	BOOL	Update(CLibraryFile* pFile);
	void	Paint(CDC* pDC, const CRect& rcBlock, const CSize& szThumb, CDC* pMemDC);

};

//{{AFX_INSERT_LOCATION}}

#endif // !defined(AFX_CTRLLIBRARYTHUMBVIEW_H__700A82CF_4E9C_4BE0_9EBA_DF2E49AC378F__INCLUDED_)