CtrlBrowseTree.h

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//
// CtrlBrowseTree.h
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// 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
//

#pragma once

class CBrowseTreeItem;
class CG2Packet;
class CXMLElement;
class CSchema;


class CBrowseTreeCtrl : public CWnd
{
// Construction
public:
        CBrowseTreeCtrl();
        virtual ~CBrowseTreeCtrl();

        DECLARE_DYNAMIC(CBrowseTreeCtrl)

// Attributes
protected:
        CCriticalSection        m_csRoot;
        CBrowseTreeItem*        m_pRoot;
        int                                     m_nTotal;
        int                                     m_nVisible;
        int                                     m_nScroll;
protected:
        int                                     m_nSelected;
        CBrowseTreeItem*        m_pSelFirst;
        CBrowseTreeItem*        m_pSelLast;
        CBrowseTreeItem*        m_pFocus;
protected:
        DWORD                           m_nCleanCookie;

// Operations
public:
        virtual BOOL            Create(CWnd* pParentWnd);
        void                            Clear(BOOL bGUI = TRUE);
        BOOL                            Expand(CBrowseTreeItem* pItem, TRISTATE bExpand = TS_TRUE, BOOL bInvalidate = TRUE);
        BOOL                            Select(CBrowseTreeItem* pItem, TRISTATE bSelect = TS_TRUE, BOOL bInvalidate = TRUE);
        BOOL                            DeselectAll(CBrowseTreeItem* pExcept = NULL, CBrowseTreeItem* pParent = NULL, BOOL bInvalidate = TRUE);
        BOOL                            Highlight(CBrowseTreeItem* pItem);
        int                                     GetSelectedCount() const;
        CBrowseTreeItem*        GetFirstSelected() const;
        CBrowseTreeItem*        GetLastSelected() const;
        CBrowseTreeItem*        HitTest(const POINT& point, RECT* pRect = NULL) const;
        BOOL                            GetRect(CBrowseTreeItem* pItem, RECT* pRect);
        void                            OnTreePacket(CG2Packet* pPacket);
protected:
        void                            UpdateScroll();
        void                            ScrollBy(int nDelta);
        void                            ScrollTo(int nPosition);
        void                            Paint(CDC& dc, CRect& rcClient, CPoint& pt, CBrowseTreeItem* pItem);
        CBrowseTreeItem*        HitTest(CRect& rcClient, CPoint& pt, CBrowseTreeItem* pItem, const POINT& point, RECT* pRect) const;
        BOOL                            GetRect(CPoint& pt, CBrowseTreeItem* pItem, CBrowseTreeItem* pFind, RECT* pRect);
        BOOL                            CleanItems(CBrowseTreeItem* pItem, DWORD nCookie, BOOL bVisible);
        BOOL                            CollapseRecursive(CBrowseTreeItem* pItem);
        void                            NotifySelection();
        void                            OnTreePacket(CG2Packet* pPacket, DWORD nFinish, CBrowseTreeItem* pItem);

// Inlines
public:
        inline CSyncObject* SyncRoot()
        {
                return &m_csRoot;
        }

// Implementation
protected:
        DECLARE_MESSAGE_MAP()
        afx_msg void OnSize(UINT nType, int cx, int cy);
        afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
        afx_msg BOOL OnEraseBkgnd(CDC* pDC);
        afx_msg void OnPaint();
        afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
        afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
        afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
        afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
        afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
        afx_msg void OnMouseMove(UINT nFlags, CPoint point);
        afx_msg void OnLButtonUp(UINT nFlags, CPoint point);

};


class CBrowseTreeItem
{
// Construction
public:
        CBrowseTreeItem(CBrowseTreeItem* pParent = NULL);
        virtual ~CBrowseTreeItem();

// Attributes
public:
        CBrowseTreeItem*        m_pParent;
        CBrowseTreeItem**       m_pList;
        int                                     m_nCount;
        int                                     m_nBuffer;
        CBrowseTreeItem*        m_pSelPrev;
        CBrowseTreeItem*        m_pSelNext;
        DWORD                           m_nCleanCookie;
public:
        BOOL                            m_bExpanded;
        BOOL                            m_bSelected;
        BOOL                            m_bContract1;
        BOOL                            m_bContract2;
public:
        DWORD                           m_nCookie;
        CString                         m_sText;
        BOOL                            m_bBold;
        int                                     m_nIcon16;
public:
        CSchema*                        m_pSchema;
        DWORD*                          m_pFiles;
        DWORD                           m_nFiles;

// Operations
public:
        CBrowseTreeItem*        Add(LPCTSTR pszName);
        CBrowseTreeItem*        Add(CBrowseTreeItem* pNewItem);
        void                            Delete();
        void                            Delete(CBrowseTreeItem* pItem);
        void                            Delete(int nItem);
        void                            Clear();
        BOOL                            IsVisible() const;
        int                                     GetChildCount() const;
        void                            Paint(CDC& dc, CRect& rc, BOOL bTarget, COLORREF crBack = CLR_NONE) const;
        void                            AddXML(CXMLElement* pXML);

};

#define IDC_BROWSE_TREE 125
#define BTN_SELCHANGED  101

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