StaticCounter.h

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// CStaticCounter - CStatic derived numeric counter display
//
// Author: Jason Hattingh
// Email:  jhattingh@greystonefx.com
// Copyright 1999, Jason Hattingh
//
// You may freely use or modify this code provided this
// Copyright is included in all derived versions.
//
// This class implements a LED style counter without the need for bitmap resources
//
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_STATICCOUNTER_H__F666A491_3847_11D3_A58E_00805FC1DE10__INCLUDED_)
#define AFX_STATICCOUNTER_H__F666A491_3847_11D3_A58E_00805FC1DE10__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// StaticCounter.h : header file
//

const DWORD STCOUNTER0  = 252;
const DWORD STCOUNTER1  = 96;
const DWORD STCOUNTER2  = 218;
const DWORD STCOUNTER3  = 242;
const DWORD STCOUNTER4  = 102;
const DWORD STCOUNTER5  = 182;
const DWORD STCOUNTER6  = 190;
const DWORD STCOUNTER7  = 224;
const DWORD STCOUNTER8  = 254;
const DWORD STCOUNTER9  = 246;
const DWORD STCOUNTERALL  = 999;

const DWORD NOTCH1 = 128;
const DWORD NOTCH2 = 64;
const DWORD NOTCH3 = 32;
const DWORD NOTCH4 = 16;
const DWORD NOTCH5 = 8;
const DWORD NOTCH6 = 4;
const DWORD NOTCH7 = 2;
const DWORD NOTCH8 = 1;

//////////////////////////////////////////////////
// CMemDC - memory DC
//
// Author: Keith Rule
// Email:  keithr@europa.com
// Copyright 1996-1997, Keith Rule
//
// You may freely use or modify this code provided this
// Copyright is included in all derived versions.
//
// History - 10/3/97 Fixed scrolling bug.
//                   Added print support.
//				 - 14/7/99 Added optional clip rect parameter [jgh]
//
// This class implements a memory Device Context

class CMemDC : public CDC {
private:
	CBitmap m_bitmap; // Offscreen bitmap
	CBitmap* m_oldBitmap; // bitmap originally found in CMemDC
	CDC* m_pDC; // Saves CDC passed in constructor
	CRect m_rect; // Rectangle of drawing area.
	BOOL m_bMemDC; // TRUE if CDC really is a Memory DC.
public:
	CMemDC(CDC* pDC, CRect rect = CRect(0,0,0,0)) : CDC(), m_oldBitmap(NULL), m_pDC(pDC)
	{
		ASSERT(m_pDC != NULL); // If you asserted here, you passed in a NULL CDC.
		
		m_bMemDC = !pDC->IsPrinting();
		
		if (m_bMemDC){
			// Create a Memory DC
			CreateCompatibleDC(pDC);
			if ( rect == CRect(0,0,0,0) )
				pDC->GetClipBox(&m_rect);
			else
				m_rect = rect;

			m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height());
			m_oldBitmap = SelectObject(&m_bitmap);
			SetWindowOrg(m_rect.left, m_rect.top);
		} else {
			// Make a copy of the relevent parts of the current DC for printing
			m_bPrinting = pDC->m_bPrinting;
			m_hDC = pDC->m_hDC;
			m_hAttribDC = pDC->m_hAttribDC;
		}
	}
	
	~CMemDC()
	{
		if (m_bMemDC) {
			// Copy the offscreen bitmap onto the screen.
			m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(),
				this, m_rect.left, m_rect.top, SRCCOPY);
			//Swap back the original bitmap.
			SelectObject(m_oldBitmap);
		} else {
			// All we need to do is replace the DC with an illegal value,
			// this keeps us from accidently deleting the handles associated with
			// the CDC that was passed to the constructor.
			m_hDC = m_hAttribDC = NULL;
		}
	}
	
	// Allow usage as a pointer
	CMemDC* operator->() {return this;}
	
	// Allow usage as a pointer
	operator CMemDC*() {return this;}
};

class CStaticCounter : public CStatic
{
// Construction
public:
	CStaticCounter();

// Operations
public:

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

// Implementation
public:
	void SetDrawFaded(bool bState = true);
	CString m_strNumber;
	void Display( int nNumber );
	void Displaylong(long lNumber);
	void SetColorForeGround(COLORREF crColor = 0xffffffff);
	void SetColorBackGround(COLORREF crColor = 0xffffffff);
	virtual ~CStaticCounter();

protected:
	void Draw( CMemDC* pDC, DWORD dwChar, int nCol);
	bool m_bDrawFadedNotches;
	bool m_bGotMetrics;

	RECT m_recClient;
	int m_nNotchWidth;
	int m_nNotchLength;
	int m_nMargin;

	COLORREF m_crColorBackground;
	COLORREF m_crColorForeground;
	COLORREF m_crColorDimForeground;
	CBrush m_brBackground;
	CBrush m_brForeground;

	// Generated message map functions
protected:
	//{{AFX_MSG(CStaticCounter)
	afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);
	afx_msg void OnPaint();
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	//}}AFX_MSG

	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

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

#endif // !defined(AFX_STATICCOUNTER_H__F666A491_3847_11D3_A58E_00805FC1DE10__INCLUDED_)