2D图形编程

开发平台：
Visual C++

TimeElapse.cpp：源码内容
							#include "StdAfx.h"
#include "Resource.h"
#include "timeelapse.h"
#define ShowMessage(X) MessageBox(NULL,X,"发生错误",MB_OK|MB_TOPMOST|MB_ICONWARNING); 
	PostQuitMessage(0);
CTimeElapse::CTimeElapse(){
	bPause=FALSE;
	bBackMidi=FALSE;
	hBitmap=NULL;
}
void CTimeElapse::CTimeElapseInit(HWND hParent,int totalSecond,int udelay,BOOL bnet)
{
	RECT rc;
	bNet=bnet;			//是否是网络部分对打
	iReorder=3;
	iExplore=3;
	delay=udelay;
	this->hParent =hParent;
	this->totalSecond =totalSecond;
	GetClientRect(hParent,&rc);
	rc.top =50;
	rc.bottom =80;
	rc.left =(rc.right -rc.left)/2-300;
	rc.right =rc.left+600;
	memcpy((void*)&rcFill,(const void*)&rc,sizeof(RECT));
	if(!hBitmap)
		hBitmap=LoadBitmap((HINSTANCE)GetModuleHandle(NULL),(LPCTSTR)IDB_TIMEBAR);
//	hbr=CreateSolidBrush(RGB(240,240,128));
}
CTimeElapse::~CTimeElapse(void)
{
	if(hBitmap)
		DeleteObject(hBitmap);
}
void CTimeElapse::SetTotalTime(int totalSecond){
	this->totalSecond =totalSecond;
}
void CTimeElapse::ShowElapseTime(){
	HDC hDC;
	RECT rcDraw;
	char szTimeElapse[10];
	HFONT hfont,oldfont;
	hDC=GetDC(hParent);
	hfont=CreateFont(45,0,0,0,0,0,0,0,0,0,0,0,0,FONTNAME);
	oldfont=(HFONT)SelectObject(hDC,hfont);
	memcpy((void*)&rcDraw,(const void*)&rcFill,sizeof(RECT));
	rcDraw.top =10;
	rcDraw.bottom= 50;
	rcDraw.left=0;
	rcDraw.right =800;
	SetTextColor(hDC,RGB(255,0,0));
	wsprintf((LPTSTR)szTimeElapse,"  %d  ",totalSecond);
	DrawText(hDC,(LPCTSTR)szTimeElapse,strlen(szTimeElapse),&rcDraw,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	SelectObject(hDC,oldfont);
	DeleteObject(hfont);
	ReleaseDC(hParent,hDC);
}
void CTimeElapse::FillRegion(BOOL bRef){
	HDC hDC;
	HPEN hPen,oldPen;
	RECT rcRealFill;
	HDC tempDC;
	hDC=GetDC(hParent);
	tempDC=CreateCompatibleDC(hDC);
	SelectObject(tempDC,hBitmap);
	memcpy((void*)&rcRealFill,(const void*)&rcFill,sizeof(RECT));
	rcRealFill.right =numPices*totalSecond+rcRealFill.left;
	if(!bRef){
		BitBlt(hDC,rcRealFill.left,rcRealFill.top,rcRealFill.right-rcRealFill.left,rcRealFill.bottom,tempDC,0,0,SRCCOPY);
	}
	DeleteDC(tempDC);
	hPen=CreatePen(PS_SOLID,1,RGB(255,255,255));
	oldPen=(HPEN)SelectObject(hDC,hPen);
	MoveToEx(hDC,rcRealFill.right+1,rcRealFill.top,NULL);
	LineTo(hDC,rcRealFill.right +1,rcRealFill.top+30);
	SelectObject(hDC,oldPen);
	DeleteObject(hPen);
	ReleaseDC(hParent,hDC);
}
void CTimeElapse::Begin(){
	HANDLE hThread;
	DWORD did;
	threadExit=FALSE;
	numPices=(rcFill.right -rcFill.left)/totalSecond;
	hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadElapseTime,(LPVOID)this,0,&did);
	if(bBackMidi)
		PlayMidiSound();
	if(hThread){
		CloseHandle(hThread);
	}else{
		ShowMessage("线程创建失败");
	}
}
void CTimeElapse::Stop(){
	threadExit=TRUE;
	if(bBackMidi){
		mciSendCommand (OpenParms.wDeviceID,MCI_PAUSE,0,(DWORD)(LPVOID)&PlayParms);
		mciSendCommand (OpenParms.wDeviceID, MCI_CLOSE, NULL, NULL);
	}
}
void CTimeElapse::CloseMidiSound(){
	mciSendCommand (OpenParms.wDeviceID,MCI_PAUSE,0,(DWORD)(LPVOID)&PlayParms);
	mciSendCommand (OpenParms.wDeviceID, MCI_CLOSE, NULL, NULL);
	bBackMidi=FALSE;
}
int CTimeElapse::delay =0;
LRESULT CALLBACK CTimeElapse::ThreadElapseTime(LPARAM lParam){
	CTimeElapse *pElapse;
	pElapse=(CTimeElapse*)lParam;
	while(!threadExit && pElapse->totalSecond !=0){
		if(!bPause){
			pElapse->ShowElapseTime();
			pElapse->FillRegion(TRUE);
			pElapse->totalSecond --;
		}
		Sleep(delay);
	}
	if(pElapse->totalSecond==0)
		SendMessage(pElapse->hParent,OUTOF_TIME,0,0);
	return 0;
}
void CTimeElapse::InvalidIt(HWND hParent){
	InvalidateRect(hParent,&rcFill,TRUE);
}
void CTimeElapse::Pause(){
	bPause=!bPause;
	if(bPause  && bBackMidi){
		StopMidiSound();
	}else if(bBackMidi)
		ContinuePlay();
}
void CTimeElapse::PlayMidiSound(){
	MCIERROR mer;
	bBackMidi=TRUE;
	OpenParms.lpstrDeviceType =(LPCSTR) MCI_DEVTYPE_SEQUENCER;//MIDI类型 
	OpenParms.lpstrElementName = (LPCSTR) "back"; 
	OpenParms.wDeviceID = 0; 
	OpenParms.dwCallback=0;
	mer=mciSendCommand (NULL, MCI_OPEN,MCI_WAIT | MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID | MCI_OPEN_ELEMENT,(DWORD)(LPVOID) &OpenParms);
	if(!mer){
		PlayParms.dwFrom = 0;
		mciSendCommand (OpenParms.wDeviceID,MCI_PLAY, 
		MCI_FROM, (DWORD)(LPVOID) 
		&PlayParms);	
	}
}
void CTimeElapse::StopMidiSound(){
	mciSendCommand (OpenParms.wDeviceID,MCI_PAUSE,0,(DWORD)(LPVOID)&PlayParms);
}
void CTimeElapse::QueryStatus(){
	MCI_STATUS_PARMS StatusParms; 
	if(bBackMidi){
		if(!threadExit && !bPause){
			memset((void*)&StatusParms,0,sizeof(StatusParms));
			StatusParms.dwItem = MCI_STATUS_MODE;
			mciSendCommand (OpenParms.wDeviceID, MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,(DWORD)(LPVOID) &StatusParms);
			if(MCI_MODE_STOP==StatusParms.dwReturn){
				mciSendCommand (OpenParms.wDeviceID,MCI_PAUSE,0,(DWORD)(LPVOID)&PlayParms);
				mciSendCommand (OpenParms.wDeviceID, MCI_CLOSE, NULL, NULL);
				PlayMidiSound();
			}
		}
	}
}
void CTimeElapse::ContinuePlay(){
	mciSendCommand(OpenParms.wDeviceID,MCI_PLAY,MCI_FROM,(DWORD)(LPVOID)&PlayParms);
}
//MCI_PLAY_PARMS CTimeElapse::PlayParms={0};
//MCI_OPEN_PARMS CTimeElapse::OpenParms={0};
BOOL CTimeElapse::threadExit=FALSE;
BOOL CTimeElapse::bPause =FALSE;

						