mwclock.c

在uClinux 2.4X 的GUI 驱动 microwindows-Drives 测试OK

	memset(szTimer,0,sizeof(szTimer));
	
	// 开始消息循环
	while(1) 
	{ 
		GrGetNextEventTimeout(&event, 100L);
		switch(event.type) 
		{
			case GR_EVENT_TYPE_EXPOSURE:
				GrText(wSetButton,DCButton,4,13,"设置...",-1,GR_TFASCII); 
				DrawButton(wSetButton,60,20,0);
				break;

			case GR_EVENT_TYPE_CLOSE_REQ:
				// 关闭按钮
				if (event.general.wid == w)
				{
					GrDestroyWindow(wSetButton);
					GrDestroyWindow(w);
					GrDestroyGC(DCTimer);
					GrDestroyGC(DCButton);
					GrDestroyFont(ChineseFont);
					GrClose();
					exit(0);
				}
				break;
			case GR_EVENT_TYPE_BUTTON_DOWN:
				// 按下按钮
				if (event.general.wid == wSetButton)
				{
					DrawButton(wSetButton,60,20,1);
					do_setup_time(w);
					DrawButton(wSetButton,60,20,0);
				}

				break;
			case GR_EVENT_TYPE_TIMEOUT:
				// 我们在超时的时间里显示时间
				nSeconds = ((rBCDSEC & 0x70) >> 4)*10 + (rBCDSEC & 0xf);
				nMinutes = ((rBCDMIN & 0x70) >> 4)*10 + (rBCDMIN & 0xf);
				nHours = ((rBCDHOUR & 0x70) >> 4)*10 + (rBCDHOUR & 0xf);

				nDay = ((rBCDDAY & 0x70) >> 4)*10 + (rBCDDAY & 0xf);
				nMonth = ((rBCDMON & 0x70) >> 4)*10 + (rBCDMON & 0xf);
				nYear = rBCDYEAR;

				GrSetGCForeground(DCTimer,GrGetSysColor(GR_COLOR_BTNFACE)); 
				GrText(w,DCTimer,3,15,szTimer,-1,GR_TFASCII);
				sprintf(szTimer,"20%02d年%02d月%02d日 %02d:%02d:%02d",nYear,nMonth,nDay,nHours,nMinutes,nSeconds);
				GrSetGCForeground(DCTimer,BLACK); 
				GrText(w,DCTimer,3,15,szTimer,-1,GR_TFASCII);
				//GrFlush();
				break;				
			default:
				break;
		}
	}
}

void do_setup_time(GR_WINDOW_ID wRootWindow)
{
	GR_WINDOW_ID	wSetupWindow;
	GR_WINDOW_ID	wOKButton;
	GR_WINDOW_ID	wCancelButton;
	GR_EVENT		event;
	GR_GC_ID		DCLabels;
	int				nYear=0;
	int				nMonth=0;
	int				nDay=0;
	int				nHours=0;
	int				nMinutes=0;
	int				nSeconds=0;
	SPINBUTTON		SpinButtons[6*2];
	int				i=0;
	int				nValue=1;
	int				nTopPosition=12;

	// 设置事件窗体
	wSetupWindow = GrNewWindowEx(
		GR_WM_PROPS_MAXIMIZE|GR_WM_PROPS_NOAUTOMOVE, "Clock Setup", GR_ROOT_WINDOW_ID, 
		50, 50, 230, 120, GrGetSysColor(GR_COLOR_BTNFACE));
	// OK按钮
	wOKButton = GrNewWindowEx(
		GR_WM_PROPS_BORDER|GR_WM_PROPS_APPFRAME,
		"OK", wSetupWindow, 
		160, 10, 60, 20, GrGetSysColor(GR_COLOR_BTNFACE));
	// Cancel按钮
	wCancelButton = GrNewWindowEx(
		GR_WM_PROPS_BORDER|GR_WM_PROPS_APPFRAME,
		"Cancel", wSetupWindow, 
		160, 30, 60, 20, GrGetSysColor(GR_COLOR_BTNFACE));
	
	// 事件选择
	GrSelectEvents(wSetupWindow, GR_EVENT_MASK_EXPOSURE | GR_EVENT_MASK_CLOSE_REQ | GR_EVENT_MASK_TIMEOUT);

	GrSelectEvents(wOKButton, GR_EVENT_MASK_BUTTON_DOWN);
	GrSelectEvents(wCancelButton, GR_EVENT_MASK_BUTTON_DOWN);

	// 下面生成那些 + - 按钮
	for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
	{
		if (nValue == 1)
		{
			// + 按钮
			SpinButtons[i].wWindow = GrNewWindowEx(GR_WM_PROPS_BORDER|GR_WM_PROPS_APPFRAME,	"Spin", wSetupWindow, 
									   100, nTopPosition, 14, 14, GrGetSysColor(GR_COLOR_BTNFACE));

		}
		else
		{
			// - 按钮
			SpinButtons[i].wWindow = GrNewWindowEx(GR_WM_PROPS_BORDER|GR_WM_PROPS_APPFRAME,	"Spin", wSetupWindow, 
									   120, nTopPosition, 14, 14, GrGetSysColor(GR_COLOR_BTNFACE));
			
			nTopPosition += 15;
		}
		
		// 选择事件
		GrSelectEvents(SpinButtons[i].wWindow, GR_EVENT_MASK_BUTTON_DOWN | GR_EVENT_MASK_BUTTON_UP);
		// 显示按钮
		GrMapWindow(SpinButtons[i].wWindow);
		
		// 设置增加的数值
		SpinButtons[i].nValue = nValue;
		// 最大和最小值
		SpinButtons[i].nMin = 0;
		SpinButtons[i].nMax = 59;
		// 因为一个是+按钮，一个是-按钮，所以增加的数量一会儿是1，一会儿是-1，这里用一个取反操作实现
		nValue = -nValue;
	}

	
	// 显示其他窗口
	GrMapWindow(wSetupWindow);
	GrMapWindow(wOKButton);
	GrMapWindow(wCancelButton);
	
	// 设置绘图句柄和颜色，字体
	DCLabels = GrNewGC();
	GrSetGCForeground(DCLabels,BLACK); 
	GrSetGCBackground(DCLabels,GrGetSysColor(GR_COLOR_BTNFACE));
	GrSetGCFont(DCLabels,ChineseFont); 

	// 获取RTC寄存器里的信息
	nSeconds = ((rBCDSEC & 0x70) >> 4)*10 + (rBCDSEC & 0xf);
	nMinutes = ((rBCDMIN & 0x70) >> 4)*10 + (rBCDMIN & 0xf);
	nHours = ((rBCDHOUR & 0x70) >> 4)*10 + (rBCDHOUR & 0xf);

	nDay = ((rBCDDAY & 0x70) >> 4)*10 + (rBCDDAY & 0xf);
	nMonth = ((rBCDMON & 0x70) >> 4)*10 + (rBCDMON & 0xf);
	nYear = rBCDYEAR;
	
	// 设置操作的目标变量和最大最小数值
	SpinButtons[0].pValue = &nYear;			SpinButtons[0].nMax = 99;
	SpinButtons[1].pValue = &nYear;			SpinButtons[1].nMax = 99;
	SpinButtons[2].pValue = &nMonth;		SpinButtons[2].nMax = SpinButtons[3].nMax = 12;
	SpinButtons[3].pValue = &nMonth;		SpinButtons[2].nMin = SpinButtons[3].nMin = 1;
	SpinButtons[4].pValue = &nDay;			SpinButtons[4].nMin = SpinButtons[5].nMin = 1;
	SpinButtons[5].pValue = &nDay;			SpinButtons[4].nMax = SpinButtons[5].nMax = 31;
	SpinButtons[6].pValue = &nHours;		SpinButtons[6].nMax = SpinButtons[7].nMax = 23;
	SpinButtons[7].pValue = &nHours;
	SpinButtons[8].pValue = &nMinutes;
	SpinButtons[9].pValue = &nMinutes;
	SpinButtons[10].pValue = &nSeconds;
	SpinButtons[11].pValue = &nSeconds;

	// 消息循环
	while(1) 
	{
		GrGetNextEventTimeout(&event, 100L);
		switch(event.type) 
		{
			case GR_EVENT_TYPE_EXPOSURE:
				if (event.general.wid == wSetupWindow)
				{
					// 显示文字
					GrText(wSetupWindow,DCLabels,4,15+10,"年:",-1,GR_TFASCII); 
					GrText(wSetupWindow,DCLabels,4,30+10,"月:",-1,GR_TFASCII); 
					GrText(wSetupWindow,DCLabels,4,45+10,"日:",-1,GR_TFASCII); 
					GrText(wSetupWindow,DCLabels,4,60+10,"小时:",-1,GR_TFASCII); 
					GrText(wSetupWindow,DCLabels,4,75+10,"分钟:",-1,GR_TFASCII); 
					GrText(wSetupWindow,DCLabels,4,90+10,"秒:",-1,GR_TFASCII); 

					// 按钮上的文字
					GrText(wOKButton,DCLabels,16,13,"确定",-1,GR_TFASCII); 
					GrText(wCancelButton,DCLabels,16,13,"取消",-1,GR_TFASCII); 
					
					// 绘制按钮边框
					DrawButton(wOKButton,60,20,0);
					DrawButton(wCancelButton,60,20,0);

					for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
					{
						if (SpinButtons[i].nValue > 0)
						{
							GrText(SpinButtons[i].wWindow,DCLabels,3,11,"+",-1,GR_TFASCII); 
						}
						else
						{
							GrText(SpinButtons[i].wWindow,DCLabels,3,11,"-",-1,GR_TFASCII); 
						}

						DrawButton(SpinButtons[i].wWindow,14,14,0);
					}
				}
				break;
			case GR_EVENT_TYPE_BUTTON_DOWN:
				if (event.general.wid == wOKButton)
				{
					DrawButton(wOKButton,60,20,1);
					
					// 保存信息
					rBCDSEC = NumberToBCD(nSeconds);
					rBCDMIN = NumberToBCD(nMinutes);
					rBCDHOUR = NumberToBCD(nHours);

					rBCDDAY = NumberToBCD(nDay);
					rBCDMON = NumberToBCD(nMonth);
					rBCDYEAR = nYear;
					
					// 销毁+ -按钮
					for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
					{
						GrDestroyWindow(SpinButtons[i].wWindow);
					}
					// 按钮和主窗体
					GrDestroyWindow(wOKButton);
					GrDestroyWindow(wCancelButton);
					GrDestroyWindow(wSetupWindow);
					GrDestroyGC(DCLabels);
					return;
				}
				else if (event.general.wid == wCancelButton)
				{
					DrawButton(wCancelButton,60,20,1);
					for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
					{
						GrDestroyWindow(SpinButtons[i].wWindow);
					}

					GrDestroyWindow(wOKButton);
					GrDestroyWindow(wCancelButton);
					GrDestroyWindow(wSetupWindow);
					GrDestroyGC(DCLabels);
					return;
				}
				else
				{
					for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
					{
						if (SpinButtons[i].wWindow == event.general.wid)
						{
							// TODO: 这里没有判断具体的日期有效性，比如2月30日这种情况。

							if (((SpinButtons[i].nValue > 0) && (*SpinButtons[i].pValue < SpinButtons[i].nMax))
								|| ((SpinButtons[i].nValue < 0) && (*SpinButtons[i].pValue > SpinButtons[i].nMin)))
							{
								// 设置新的数值
								*SpinButtons[i].pValue += SpinButtons[i].nValue;
							}
							
							DrawButton(SpinButtons[i].wWindow,14,14,1);
							break;
						}
					}
				}

				break;
			case GR_EVENT_TYPE_BUTTON_UP:
				for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
				{
					if (SpinButtons[i].wWindow == event.general.wid)
					{
						DrawButton(SpinButtons[i].wWindow,14,14,0);
						break;
					}
				}
				break;
			case GR_EVENT_TYPE_CLOSE_REQ:
				for (i=0;i<sizeof(SpinButtons)/sizeof(SpinButtons[0]);i++)
				{
					GrDestroyWindow(SpinButtons[i].wWindow);
				}

				GrDestroyWindow(wOKButton);
				GrDestroyWindow(wCancelButton);
				GrDestroyWindow(wSetupWindow);
				GrDestroyGC(DCLabels);
				return;
				break;

			case GR_EVENT_TYPE_TIMEOUT:
				// 在TIMEOUT事件里显示
				PrintTimer(nYear,60,15+10,DCLabels,wSetupWindow);
				PrintTimer(nMonth,60,30+10,DCLabels,wSetupWindow);
				PrintTimer(nDay,60,45+10,DCLabels,wSetupWindow);
				PrintTimer(nHours,60,60+10,DCLabels,wSetupWindow);
				PrintTimer(nMinutes,60,75+10,DCLabels,wSetupWindow);
				PrintTimer(nSeconds,60,90+10,DCLabels,wSetupWindow);
				break;
		}
	}
}

void PrintTimer(int nValue,int X,int Y,GR_GC_ID hDC,GR_WINDOW_ID wWindow)
{
	char		szTimer[10];
	sprintf(szTimer,"       ");		// 先显示空字符，用来擦除上次显示的内容，不然在上次显示2位这次显示1位的时候会出问题
	GrText(wWindow,hDC,X,Y,szTimer,-1,GR_TFASCII); 
	sprintf(szTimer,"%d",nValue);	// 实际的数值
	GrText(wWindow,hDC,X,Y,szTimer,-1,GR_TFASCII); 
}

void DrawButton(GR_WINDOW_ID wButton,int Width,int Height,int bDown)
{
	GR_GC_ID		DCButton;
	
	DCButton =  GrNewGC();

	if (!bDown)
	{
		GrSetGCForeground(DCButton,GrGetSysColor(GR_COLOR_BTNHIGHLIGHT)); 
		GrLine(wButton,DCButton,0,0,0,Height);
		GrLine(wButton,DCButton,0,0,Width,0);
		GrSetGCForeground(DCButton,GrGetSysColor(GR_COLOR_BTNSHADOW));
		GrLine(wButton,DCButton,0,Height-1,Width,Height-1);
		GrLine(wButton,DCButton,Width-1,0,Width-1,Height-1);
	}
	else
	{
		GrSetGCForeground(DCButton,GrGetSysColor(GR_COLOR_BTNSHADOW));
		GrLine(wButton,DCButton,0,0,0,Height);
		GrLine(wButton,DCButton,0,0,Width,0);
		GrSetGCForeground(DCButton,GrGetSysColor(GR_COLOR_BTNHIGHLIGHT)); 
		GrLine(wButton,DCButton,0,Height-1,Width,Height-1);
		GrLine(wButton,DCButton,Width-1,0,Width-1,Height-1);
	}

	GrDestroyGC(DCButton);
}

int NumberToBCD(int nValue)
{
	int nHigh = nValue / 10;
	int nLow = nValue - nHigh * 10;

	return (nHigh << 4) | nLow;
}