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FracWnd.h

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#if !defined(AFX_FRACWND_H__AA4A322A_6E3B_4BFB_9D90_968EAB3E75AE__INCLUDED_)
#define AFX_FRACWND_H__AA4A322A_6E3B_4BFB_9D90_968EAB3E75AE__INCLUDED_
/*########################################################################
        FracWnd.h

        Copyright 2002 Mark Williams, all rights reserved.
        Contact: mark@extrabit.com
        http://www.extrabit.com

        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.

########################################################################*/

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

// CFracWnd window

class FractalImage ;
class Palette ;


class CFracWnd : public CWnd
{
// Construction
public:
        CFracWnd();

// Attributes
public:
        void set_image (FractalImage*) ;

// Operations
public:

// Overrides
        // ClassWizard generated virtual function overrides
        //{{AFX_VIRTUAL(CFracWnd)
        //}}AFX_VIRTUAL

// Implementation
public:
        virtual ~CFracWnd();

        // Generated message map functions
protected:
        //{{AFX_MSG(CFracWnd)
        afx_msg void OnPaint();
        afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
        afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
        afx_msg void OnMouseMove(UINT nFlags, CPoint point);
        afx_msg void OnSize(UINT nType, int cx, int cy);
        //}}AFX_MSG
        DECLARE_MESSAGE_MAP()

private:
        void update_bitmap (void) ;
        void construct (CDC* p_dc, int width, int height) ;
        void draw_cbitmap (CDC* p_dc,
                                                const CRect& image_rect_v,
                                                HBITMAP bitmap, DWORD rasterop) ;
        void zoom_in (const CRect&) ;

private:
        FractalImage* m_image ;

        HBITMAP m_rgb_bitmap ;

        // Zooming in interaction.
        CPoint m_mouse_down ;
        CPoint m_mouse_curr ;
        bool m_in_drag ;
};


//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_FRACWND_H__AA4A322A_6E3B_4BFB_9D90_968EAB3E75AE__INCLUDED_)

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