progresslistener.cpp

有关huffman的程序对大家学习数据结构有好处但不是所有人都用得上

// ProgressListener.cpp: implementation of the ProgressListener class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "HuffmanTest.h"
#include "ProgressListener.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

ProgressListener::ProgressListener(CProgressCtrl *NewPBar, CStatic *NewLabel)
{
	ProgressMax=100;
	LastTick=0;
	ProgressPattern="Progress: %d%%";

	MinTickDiff=500;

	MyPBar=NewPBar;
	StateLab=NewLabel;

	MyPBar->SetRange(0,100);
	MyPBar->SetPos(0);
	NewLabel->SetWindowText(ProgressPattern);
}

ProgressListener::~ProgressListener()
{

}

void ProgressListener::SetProgressMsg(CString NewStateName)
{
	ProgressPattern=NewStateName;
}

void ProgressListener::SetMax(unsigned int NewMax)
{
	if (NewMax>0)
	{
		ProgressMax=NewMax;
		Update(0);
	}
}

void ProgressListener::Update(unsigned int Progress)
{
	if ( ((GetTickCount()+MinTickDiff)>LastTick) || (Progress==ProgressMax) )
	{
		int ProgPercent=(int)(((float)Progress/ProgressMax)*100);
		CString StatusStr;
		StatusStr.Format(ProgressPattern,ProgPercent);

		StateLab->SetWindowText(StatusStr);
		MyPBar->SetPos(ProgPercent);

		LastTick=GetTickCount();
	}
}