RichViewCtrl.h

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//
// RichViewCtrl.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
//

#if !defined(AFX_RICHVIEWCTRL_H__EB7BD9A6_8F32_48F1_ACAA_3503B8A61769__INCLUDED_)
#define AFX_RICHVIEWCTRL_H__EB7BD9A6_8F32_48F1_ACAA_3503B8A61769__INCLUDED_

#pragma once

class CRichDocument;
class CRichElement;
class CRichFragment;

typedef struct
{
        int             nFragment;
        int             nOffset;
} RICHPOSITION;


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

// Attributes
protected:
        CSyncObject*    m_pSyncRoot;
        BOOL                    m_bSelectable;
        BOOL                    m_bFollowBottom;
        BOOL                    m_bDefaultLink;
protected:
        CRichDocument*  m_pDocument;
        DWORD                   m_nCookie;
        CPtrArray               m_pFragments;
        int                             m_nLength;
        int                             m_nScrollWheelLines;
protected:
        CRichElement*   m_pHover;
        BOOL                    m_bSelecting;
        RICHPOSITION    m_pSelStart;
        RICHPOSITION    m_pSelEnd;
        RICHPOSITION    m_pSelAbsStart;
        RICHPOSITION    m_pSelAbsEnd;
protected:
        HCURSOR                 m_hcHand;
        HCURSOR                 m_hcText;
        CBrush                  m_pBrush;

// Operations
public:
        void                    SetSyncObject(CSyncObject* pSyncRoot);
        void                    SetSelectable(BOOL bSelectable);
        void                    SetFollowBottom(BOOL bFollowBottom);
        void                    SetDefaultLink(BOOL bDefaultLink);
        void                    SetDocument(CRichDocument* pDocument);
        BOOL                    IsModified() const;
        void                    InvalidateIfModified();
        int                             FullHeightMove(int nX, int nY, int nWidth, BOOL bShow = FALSE);
        BOOL                    GetElementRect(CRichElement* pElement, RECT* prc);
protected:
        void                    ClearFragments();
        void                    Layout(CDC* pDC, CRect* pRect);
        void                    WrapLineHelper(CPtrList& pLine, CPoint& pt, int& nLineHeight, int nWidth, int nAlign);
        CRichFragment*  PointToFrag(CPoint& pt);
        RICHPOSITION    PointToPosition(CPoint& pt);
        CPoint                  PositionToPoint(RICHPOSITION& pt);
        void                    UpdateSelection();
        void                    CopySelection();
protected:
        virtual void    OnLayoutComplete() {};
        virtual void    OnPaintBegin(CDC* pDC) {};
        virtual void    OnPaintComplete(CDC* pDC) {};
        virtual void    OnVScrolled() {};

// Overrides
public:
        //{{AFX_VIRTUAL(CRichViewCtrl)
        public:
        virtual BOOL Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID);
        //}}AFX_VIRTUAL

// Implementation
protected:
        //{{AFX_MSG(CRichViewCtrl)
        afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
        afx_msg void OnDestroy();
        afx_msg BOOL OnEraseBkgnd(CDC* pDC);
        afx_msg void OnPaint();
        afx_msg void OnSize(UINT nType, int cx, int cy);
        afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
        afx_msg void OnMouseMove(UINT nFlags, CPoint point);
        afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
        afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
        afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
        afx_msg void OnTimer(UINT nIDEvent);
        afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
        //}}AFX_MSG
        DECLARE_MESSAGE_MAP()

        friend class CRichFragment;
};

typedef struct
{
        NMHDR                   hdr;
        CRichElement*   pElement;
} RVN_ELEMENTEVENT;

#define RVN_CLICK               100

//{{AFX_INSERT_LOCATION}}

#endif // !defined(AFX_RICHVIEWCTRL_H__EB7BD9A6_8F32_48F1_ACAA_3503B8A61769__INCLUDED_)

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