graphview.h

// graphview.h	- Declaration of CGraphView (the Treemap view)
//
// WinDirStat - Directory Statistics
// Copyright (C) 2003-2004 Bernhard Seifert
//
// This program 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.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// Author: bseifert@users.sourceforge.net, bseifert@daccord.net
//
// Last modified: $Date: 2004/11/05 16:53:07 $

#pragma once

#include "treemap.h"

class CDirstatDoc;
class CItem;


//
// CGraphView. The treemap window.
//
class CGraphView: public CView, public CTreemap::Callback
{
protected:
	CGraphView();
	DECLARE_DYNCREATE(CGraphView)

public:
	virtual ~CGraphView();

	// CTreemap::Callback
	virtual void TreemapDrawingCallback();

	CDirstatDoc* GetDocument();
	void SuspendRecalculation(bool suspend);
	bool IsShowTreemap();
	void ShowTreemap(bool show);
	void DrawEmptyView();

protected:
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	virtual void OnInitialUpdate();
	virtual void OnDraw(CDC* pDC);
	bool IsDrawn();
	void Inactivate();
	void EmptyView();
	void DrawEmptyView(CDC *pDC);

	void DrawZoomFrame(CDC *pdc, CRect& rc);
	void DrawHighlights(CDC *pdc);

	void DrawHighlightExtension(CDC *pdc);
	void RecurseHighlightExtension(CDC *pdc, const CItem *item);

	void DrawSelection(CDC *pdc);

	void RenderHighlightRectangle(CDC *pdc, CRect& rc);

	bool m_recalculationSuspended;	// True while the user is resizing the window.
	bool m_showTreemap;				// False, if the user switched off the treemap (by F9).
	CSize m_size;					// Current size of view
	CTreemap m_treemap;				// Treemap generator
	CBitmap m_bitmap;				// Cached view. If m_hObject is NULL, the view must be recalculated.
	CSize m_dimmedSize;				// Size of bitmap m_dimmed
	CBitmap m_dimmed;				// Dimmed view. Used during refresh to avoid the ooops-effect.
	UINT_PTR m_timer;				// We need a timer to realize when the mouse left our window.



	DECLARE_MESSAGE_MAP()
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnSetFocus(CWnd* pOldWnd);
	virtual void OnUpdate(CView * pSender, LPARAM lHint, CObject *pHint);
	afx_msg void OnContextMenu(CWnd *pWnd, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnDestroy();
	afx_msg void OnTimer(UINT nIDEvent);

public:
	#ifdef _DEBUG
		virtual void AssertValid() const;
		virtual void Dump(CDumpContext& dc) const;
	#endif
		afx_msg void OnPopupCancel();
};

#ifndef _DEBUG  // Debugversion in graphview.cpp
inline CDirstatDoc* CGraphView::GetDocument()
   { return reinterpret_cast<CDirstatDoc*>(m_pDocument); }
#endif


// $Log: graphview.h,v $
// Revision 1.5  2004/11/05 16:53:07  assarbad
// Added Date and History tag where appropriate.
//