digitaldevice.cpp

郎顿51开发板上位机代码 帮助你快速开发工控程序

/////////////////////////////////////////////////////////
//			数码式测量设备DigitalDevice封装类
//	版本：1.06
//	最后修改日期：2002.1.25
/////////////////////////////////////////////////////////

// DigitalDevice.cpp : implementation file
//

#include "stdafx.h"
#include "DigitalDevice.h"

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

/////////////////////////////////////////////////////////////////////////////
// DigitalDevice


/////////////////////////////////////////////////////////////////////////////////////////
//函数名：DigitalDevice(CWnd *parent)
//输入参数：父窗口的指针
//返回值：无
//作用：构造函数，初始化变量的值，创建并显示对象
DigitalDevice::DigitalDevice(CWnd *parent)
{
	//初始化字模数组
	const UINT font[FONT_MAXNUM][FONT_LENGTH]=
	{
		1, 1, 0, 1, 1, 1, 1, 0,	0,		//0
		0, 0, 0, 0, 0, 1, 1, 0,	0,		//1
		1, 0, 1, 1, 1, 0, 1, 0,	0,		//2
		1, 0, 1, 0, 1, 1, 1, 0,	0,		//3
		0, 1, 1, 0, 0, 1, 1, 0,	0,		//4
		1, 1, 1, 0, 1, 1, 0, 0,	0,		//5
		1, 1, 1, 1, 1, 1, 0, 0,	0,		//6
		1, 1, 0, 0, 0, 1, 1, 0,	0,		//7
		1, 1, 1, 1, 1, 1, 1, 0,	0,		//8
		1, 1, 1, 0, 1, 1, 1, 1,	0,		//9
		0, 0, 0, 0, 0, 0, 0, 1,	0,		//小数点
		0, 0, 0, 0, 0, 0, 0, 0,	1,		//冒号
		0, 0, 1, 0, 0, 0, 0, 0,	0,		//负号
		0, 0, 0, 0, 0, 0, 0, 0,	0		//空格
	};	
	memcpy(DD_Font, font, sizeof(DD_Font));
	
	DD_Width = 210;		//设置仪表的大小
	DD_Height = 55;		

	DD_CharWidth = 21;	//设置显示字体的大小和显示样式
	DD_CharHeight = 40;
	DD_CharThick = 3;
	DD_CharSpace = 3;

	DD_Bits = 8;	//默认采用6位数码管

	DD_CurrentNumber = 0;	//默认要显示的数字是0
	
	SYSTEMTIME tm;			//默认要显示的字符串是本机的时间
	GetLocalTime(&tm);
	DD_CurrentString.Format("%02d:%02d:%02d", tm.wHour, tm.wMinute, tm.wSecond);	

	DD_BorderLeft = 1;		//默认设置四周边框都要绘制
	DD_BorderRight = 1;
	DD_BorderTop = 1;
	DD_BorderBottom = 1;

	DD_BorderWidth = 3;	//默认的边框宽度

	DD_BdLightColor = RGB(255, 255, 255);	//默认边界颜色
	DD_BdDarkColor = RGB(100, 100, 100);

	DD_TextPos.x = 10;	//设置文字的默认位置
	DD_TextPos.y = 7;

	DD_BkColor = RGB(0, 0, 0);				//设置仪表的背景颜色为黑色
	DD_TextLightColor = RGB(0, 255, 0);		//设置默认的字体亮颜色
	DD_TextDarkColor = GetNextColor(DD_TextLightColor, 0.3);//设置默认的字体暗颜色
	
	DD_WorkMode = DD_STRING;	//默认的工作方式

	DD_Status = DD_WORK;	//默认仪表状态

	
	//创建相应的静态控件并且显示
	CRect rect;			
	rect.left = rect.top = 0;
	rect.bottom = DD_Height - 1; 
	rect.right = DD_Width - 1;
	Create(NULL, WS_CHILD | WS_VISIBLE | SS_NOTIFY, rect, parent);	

	SetTimer(1, 500, NULL);	//设置自检时使用的计时器
}

DigitalDevice::~DigitalDevice()
{
	KillTimer(1);
}


BEGIN_MESSAGE_MAP(DigitalDevice, CStatic)
	//{{AFX_MSG_MAP(DigitalDevice)
	ON_WM_PAINT()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// DigitalDevice message handlers


/////////////////////////////////////////////////////////////////////////////////////////
//函数名：OnPaint() 
//输入参数：无
//返回值：无
//作用：重载函数，绘制整个仪表的界面
void DigitalDevice::OnPaint() 
{
	CPaintDC dc(this); // device context for painting

	// TODO: Add your message handler code here
	DrawFace();		
	// Do not call CStatic::OnPaint() for painting messages
}


/////////////////////////////////////////////////////////////////////////////////////////
//函数名：DrawFace()
//输入参数：无
//返回值：无
//作用：绘制整个仪表的界面
void DigitalDevice::DrawFace()
{
	int i;
	CClientDC dc(this);
	CBitmap bmpc;
	bmpc.CreateCompatibleBitmap(&dc, DD_Width, DD_Height);	//创建与系统兼容的位图
	BITMAP bmp;
	bmpc.GetBitmap(&bmp);
	
	//绘制仪表的背景色
	CDC dcmem;	
	dcmem.CreateCompatibleDC(&dc);
	CBitmap * pbitmapold = (CBitmap *)dcmem.SelectObject(&bmpc);
	CBrush brush;
	brush.CreateSolidBrush(DD_BkColor);
	CBrush * pbrushold = (CBrush *)dcmem.SelectObject(&brush);
	dcmem.SelectStockObject(NULL_PEN);
	dcmem.Rectangle(0, 0, bmp.bmWidth + 1, bmp.bmHeight + 1);
	dcmem.SelectObject(pbrushold);
	brush.DeleteObject();

	//绘制仪表的边框
	brush.CreateSolidBrush(DD_BdDarkColor);
	pbrushold = (CBrush *)dcmem.SelectObject(&brush);
	if(DD_BorderTop)
		dcmem.Rectangle(0, 0, DD_Width + 1, DD_BorderWidth);
	if(DD_BorderLeft)
		dcmem.Rectangle(0, 0, DD_BorderWidth, DD_Height + 1);
	dcmem.SelectObject(pbrushold);
	brush.DeleteObject();
	brush.CreateSolidBrush(DD_BdLightColor);
	pbrushold = (CBrush *)dcmem.SelectObject(&brush);
	if(DD_BorderBottom)
		dcmem.Rectangle(0, DD_Height - DD_BorderWidth +1, DD_Width + 1, DD_Height + 1);
	if(DD_BorderRight)
		dcmem.Rectangle(DD_Width - DD_BorderWidth + 1, 0, DD_Width + 1, DD_Height + 1);
	dcmem.SelectObject(pbrushold);
	brush.DeleteObject();
	
	//绘制要显示的文字
	CString text;
	CString tmp, format;
	if(DD_WorkMode == DD_NUMBER)	//数值模式
	{
		tmp.Format("%d", (int)DD_CurrentNumber);
		int tmplen = DD_Bits - tmp.GetLength();
		if(tmplen >= 0)
		{
			format.Format("%%%d.%dlf", tmplen, tmplen);
			text.Format(format, DD_CurrentNumber);
		}
		else
		{
			text = "";
			UINT j;
			for(j = 0; j < DD_Bits; j ++)
				text += ".";
		}
	}
	else	//字符串模式
	{
		format.Format("%%%ds", DD_Bits);
		text.Format(format, DD_CurrentString);

	}
	char curc;
	for(i = 0; i < (int)DD_Bits; i ++)
	{
		curc = text.GetAt(i);
		PutChar(&dcmem, '8', DD_TextPos.x + i * (DD_CharWidth + DD_CharSpace), DD_TextPos.y, DD_TextDarkColor);	//绘制背景的8字形暗图案
		PutChar(&dcmem, curc, DD_TextPos.x + i * (DD_CharWidth + DD_CharSpace), DD_TextPos.y, DD_TextLightColor);	//绘制点亮的字
	}

	//将内存DC的内容一次画在屏幕DC上
	dc.BitBlt(0, 0, bmp.bmWidth, bmp.bmHeight, &dcmem, 0, 0, SRCCOPY);

 	dcmem.SelectObject(pbitmapold);
	bmpc.DeleteObject();
	
	dcmem.DeleteDC();
}


/////////////////////////////////////////////////////////////////////////////////////////
//函数名：DD_MoveWindow(int x, int y)
//输入参数：仪表左上角的坐标
//返回值：无
//作用：移动仪表窗口，移动后自动完成重画
void DigitalDevice::DD_MoveWindow(int x, int y)
{
	CRect rect;
	GetWindowRect(&rect);
	MoveWindow(x, y, rect.Width(), rect.Height(), true);
}


/////////////////////////////////////////////////////////////////////////////////////////
//函数名：PutChar(char c, int pos_x, int pos_y, RGBCOLOR color)
//输入参数：要绘制的dc的指针，要绘制的字符，字符的坐标值pos_x, pos_y, 绘制文字的颜色（用RGBCOLOR结构体变量）
//返回值：无
//作用：该函数在仪表界面上指定位置绘制一个字符
void DigitalDevice::PutChar(CDC *dc, char c, int pos_x, int pos_y, COLORREF color)
{
	int index, i;
	CPen pen, *ppenold;
	CBrush brush, *pbrushold;

	pen.CreatePen(PS_SOLID, 1, color);
	ppenold = (CPen *)dc->SelectObject(&pen);
	brush.CreateSolidBrush(color);
	pbrushold = (CBrush *)dc->SelectObject(&brush);

	if(c == '.')
		index = 10;
	else if(c == ':')
		index = 11;
	else if(c == '-')
		index = 12;
	else if(c == ' ')
		index = 13;
	else
		index = atoi(&c);
	for(i = 0; i < FONT_LENGTH; i ++)	//遍历对应字的所有笔划，找出要绘制的笔划并绘制之
	{
		if(DD_Font[index][i])	//如果对应的笔划为1（需要绘制）
		{
			switch(i)	//根据i的具体位置在不同部位画笔划
			{
			case 0:	
				dc->Rectangle(pos_x + DD_CharThick, pos_y, pos_x + DD_CharWidth - DD_CharThick, pos_y + DD_CharThick);
				break;
			case 1:		
				dc->Rectangle(pos_x, pos_y + DD_CharThick, pos_x + DD_CharThick, pos_y + (DD_CharHeight - DD_CharThick) / 2);
				break;
			case 2:		
				dc->Rectangle(pos_x + DD_CharThick, pos_y + (DD_CharHeight - DD_CharThick) / 2, pos_x + DD_CharWidth - DD_CharThick, pos_y + (DD_CharHeight - DD_CharThick) / 2 + DD_CharThick);
				break;
			case 3:		
				dc->Rectangle(pos_x, pos_y + DD_CharThick + (DD_CharHeight - DD_CharThick) / 2, pos_x + DD_CharThick, pos_y + DD_CharHeight - DD_CharThick);
				break;
			case 4:
				dc->Rectangle(pos_x + DD_CharThick, pos_y + DD_CharHeight - DD_CharThick, pos_x + DD_CharWidth - DD_CharThick, pos_y + DD_CharHeight - DD_CharThick + DD_CharThick);
				break;
			case 5:	
				dc->Rectangle(pos_x + DD_CharWidth - DD_CharThick, pos_y + DD_CharThick + (DD_CharHeight - DD_CharThick) / 2, pos_x + DD_CharWidth, pos_y + DD_CharHeight - DD_CharThick);
				break;
			case 6:		
				dc->Rectangle(pos_x + DD_CharWidth - DD_CharThick, pos_y + DD_CharThick, pos_x + DD_CharWidth, pos_y + (DD_CharHeight - DD_CharThick) / 2);
				break;
			case 7:	
				dc->Rectangle(pos_x + (DD_CharWidth - DD_CharThick) / 2, pos_y + DD_CharHeight - DD_CharThick, pos_x + (DD_CharWidth - DD_CharThick) / 2 + DD_CharThick, pos_y + DD_CharHeight);
				break;
			case 8:	
				dc->Rectangle(pos_x + (DD_CharWidth - DD_CharThick) / 2, pos_y + (DD_CharHeight - DD_CharThick) / 4, pos_x + (DD_CharWidth - DD_CharThick) / 2 + DD_CharThick, pos_y + DD_CharThick + (DD_CharHeight - DD_CharThick) / 4);
				dc->Rectangle(pos_x + (DD_CharWidth - DD_CharThick) / 2, pos_y + DD_CharHeight - (DD_CharHeight - DD_CharThick) / 4 - DD_CharThick, pos_x + (DD_CharWidth - DD_CharThick) / 2 + DD_CharThick, pos_y + DD_CharHeight - (DD_CharHeight - DD_CharThick) / 4);
				break;
			default:
				break;
			}
		}
	}

	dc->SelectObject(ppenold);
	pen.DeleteObject();
	dc->SelectObject(pbrushold);
	brush.DeleteObject();
}


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