aclock.cpp

可以飘在ppc屏幕上的透明时钟

// AClock.cpp : Defines the entry point for the application.
//

#include "stdafx.h"

#include "gx.h"
//GAPI显示以及硬件按键结构体变量
GXDisplayProperties g_gxdp;    // GX struct
GXKeyList g_gxkl;              // GX struct

#pragma comment(lib,"gx.lib")

#define TRAY_NOTIFYICON WM_USER + 2001
#define WM_TRAYAPP WM_USER + 2002
#define ID_TRAY	5000

// === Function Prototypes ====================================================

BOOL WINAPI MainDlgProc(
    HWND, 
    UINT, 
    WPARAM, 
    LPARAM
    );

// === Global Variables =======================================================

HINSTANCE g_hInst;

BOOL g_bWinHide = FALSE;
BOOL g_bPalmTrayAppActive = FALSE;

unsigned short Back[3600];
BOOL m_bStart=FALSE;
BOOL m_bNeedRestore=FALSE;

// Tray Icons and Notification ------------------------------

BOOL TrayMessage(
    HWND hwnd, 
    DWORD dwMessage,
    UINT uID, 
    HICON hIcon, 
    PTSTR pszTip
    )
{
  BOOL res = FALSE;
  NOTIFYICONDATA tnd;
  
  tnd.cbSize = sizeof(NOTIFYICONDATA);
  tnd.hWnd = hwnd;
  tnd.uID = uID;
  tnd.uFlags = NIF_MESSAGE|NIF_ICON;
  tnd.uCallbackMessage = TRAY_NOTIFYICON;
  tnd.hIcon = hIcon;
  tnd.szTip[0] = '\0';
  
  res = Shell_NotifyIcon(dwMessage, &tnd);
  return res;
}

void TrayIconDelete(
    HWND hwnd, 
    UINT uID, 
    HICON hIcon, 
    PTSTR pszTip
    )
{
    TrayMessage(hwnd, NIM_DELETE, uID, hIcon, NULL);
}

void TrayIconModify(
    HWND hwnd, 
    UINT uID,
    HICON hIcon, 
    PTSTR pszTip
    ) 
{
    //animate icons
    TrayMessage(hwnd, NIM_MODIFY, uID, hIcon, NULL);
}

void TrayIconAdd(
    HWND hwnd, 
    UINT uID, 
    HICON hIcon, 
    PTSTR pszTip
    )
{
    TrayMessage(hwnd, NIM_ADD, uID,  hIcon, NULL);
}

__inline DWORD RGBto16bit565(unsigned char r,unsigned char g,unsigned char b)
{	
	return (((WORD)r<<8)&0xf800)|(((WORD)g<<3)&0x07e0)|((WORD)b>>3);
}

void Line(unsigned short *m_pwBuffer,int wWidth,int x1,int y1,int x2,int y2,unsigned char r,unsigned char g,unsigned char b)
{
	int i;

	DWORD color=RGBto16bit565(r,g,b);

	if(x1==x2)
	{
		//为竖线
		if(y1<=y2)
		{
			for(i=y1;i<=y2;i++)
			{
				//pDC->SetPixel(x1,i,m_lPenColor);
				*(m_pwBuffer+i*wWidth+x1)=color;
			}
		}
		else
		{
			for(i=y2;i<=y1;i++)
			{
				//pDC->SetPixel(x1,i,m_lPenColor);
				*(m_pwBuffer+i*wWidth+x1)=color;
			}
		}

		return;
	}

	//为横线
	if(y1==y2)
	{
		if(x1<=x2)
		{
			for(i=x1;i<=x2;i++)
			{
				//pDC->SetPixel(i,y1,m_lPenColor);
				*(m_pwBuffer+y1*wWidth+i)=color;
			}
		}
		else
		{
			for(i=x2;i<=x1;i++)
			{
				//pDC->SetPixel(i,y1,m_lPenColor);
				*(m_pwBuffer+y1*wWidth+i)=color;
			}
		}

		return;
	}

	//为斜线
	float m=(y2-y1)*1.0/(x2-x1);
	float p;

	p=2*m-1;
	if(m>0 && m<=1)
	{
		if(x1<x2)
		{
			while(x1<=x2)
			{
				*(m_pwBuffer+y1*wWidth+x1)=color;
				x1++;
				//pDC->SetPixel(x1++,y1,m_lPenColor);
				if(p>=0)
				{
					p+=2*m-2;
					y1++;
				}
				else
				{
					p+=2*m;
				}
			}
		}
		else
		{
			while(x2<=x1)
			{
				*(m_pwBuffer+y2*wWidth+x2)=color;
				x2++;
				//pDC->SetPixel(x2++,y2,m_lPenColor);
				if(p>=0)
				{
					p+=2*m-2;
					y2++;
				}
				else
				{
					p+=2*m;
				}
			}
		}

		return;
	}

	p=-2*m-1;
	if(m<0 && m>=-1)
	{
		if(x1<x2)
		{
			while(x1<=x2)
			{
				*(m_pwBuffer+y1*wWidth+x1)=color;
				x1++;
				//pDC->SetPixel(x1++,y1,m_lPenColor);
				if(p>=0)
				{
					p+=-2*m-2;
					y1--;
				}
				else
				{
					p+=-2*m;
				}
			}
		}
		else
		{
			while(x2<=x1)
			{
				*(m_pwBuffer+y2*wWidth+x2)=color;
				x2++;
				//pDC->SetPixel(x2++,y2,m_lPenColor);
				if(p>=0)
				{
					p+=-2*m-2;
					y2--;
				}
				else
				{
					p+=-2*m;
				}
			}
		}

		return;
	}

	p=2/m-1;
	if(m>1)
	{
		if(y1<y2)
		{
			while(y1<=y2)
			{
				*(m_pwBuffer+y1*wWidth+x1)=color;
				y1++;
				//pDC->SetPixel(x1,y1++,m_lPenColor);
				if(p>=0)
				{
					p+=2/m-2;
					x1++;
				}
				else
				{
					p+=2/m;
				}
			}
		}
		else
		{
			while(y2<=y1)
			{
				*(m_pwBuffer+y2*wWidth+x2)=color;
				y2++;
				//pDC->SetPixel(x2,y2++,m_lPenColor);
				if(p>=0)
				{
					p+=2/m-2;
					x2++;
				}
				else
				{
					p+=2/m;
				}
			}
		}

		return;
	}

	p=-2/m-1;
	if(y1<y2)
	{
		while(y1<=y2)
		{
			*(m_pwBuffer+y1*wWidth+x1)=color;
			y1++;
			//pDC->SetPixel(x1,y1++,m_lPenColor);
			if(p>=0)
			{
				p+=-2/m-2;
				x1--;
			}
			else
			{
				p+=-2/m;
			}
		}
	}
	else
	{
		while(y2<=y1)
		{
			*(m_pwBuffer+y2*wWidth+x2)=color;
			y2++;
			//pDC->SetPixel(x2,y2++,m_lPenColor);
			if(p>=0)
			{
				p+=-2/m-2;
				x2--;
			}
			else
			{
				p+=-2/m;
			}
		}
	}
}

void SaveBack(unsigned short *pBuffer,int x,int y)
{
	int i;
	for(i=0;i<60;i++)
	{
		memcpy(Back+i*60,pBuffer+(y+i-30)*g_gxdp.cxWidth+x-30,120);
	}
}

void RestoreBack(unsigned short *pBuffer,int x,int y)
{
	int i;
	for(i=0;i<60;i++)
	{
		memcpy(pBuffer+(y+i-30)*g_gxdp.cxWidth+x-30,Back+i*60,120);
	}
}

void DrawClock(unsigned short *buffer,int x,int y)
{
	_SYSTEMTIME t;
	GetLocalTime(&t);

	//看画面有无刷新
	if(*(buffer+220*g_gxdp.cxWidth+180)==12345)
	{
		RestoreBack(buffer,x,y);
	}
	else
	{
		SaveBack(buffer,x,y);
	}

	//先画边框
	double c;
	int x1,y1,x2,y2;
	x1=x+29;
	y1=y;
	for(c=0.1;c<=6.3;c+=0.1)
	{
		x2=x+29*cos(c);
		y2=y-29*sin(c);

		Line(buffer,240,x1,y1,x2,y2,0,0,255);

		x1=x2;
		y1=y2;
	}

	//画指针
	x1=x+18*sin((float)(t.wHour+(float)t.wMinute/60.0)/12.0*6.28);
	y1=y-18*cos((float)(t.wHour+(float)t.wMinute/60.0)/12.0*6.28);

	Line(buffer,240,x,y,x1,y1,255,255,0);

	x1=x+22*sin((float)(t.wMinute)/60.0*6.28);
	y1=y-22*cos((float)(t.wMinute)/60.0*6.28);

	Line(buffer,240,x,y,x1,y1,0,255,0);

	x1=x+24*sin((float)(t.wSecond)/60.0*6.28);
	y1=y-24*cos((float)(t.wSecond)/60.0*6.28);

	Line(buffer,240,x,y,x1,y1,0,0,255);

	*(buffer+220*g_gxdp.cxWidth+180)=12345; //检测画面刷新使用

}

void RefreshScreen()
{
	//注意两种色深模式的不同.
	switch(g_gxdp.cBPP)
	{
	//16位彩色模式;
	case 16: 
		{			            
			unsigned short * pusLine=(unsigned short *)GXBeginDraw();
			if(pusLine==NULL) 
			{
				return; //无法绘图
			}

			//保存时钟区域的背景画面
			if(!m_bStart)
			{
				SaveBack(pusLine,180,220);
				m_bStart=TRUE;
			}
			
			//进行绘图
			//按照当前时间绘画时钟			
			DrawClock(pusLine,180,220);
			
			GXEndDraw(); //绘图完毕一定要结束
		}
		break;
		
	default:
		break;
	}
}


int WINAPI WinMain(	HINSTANCE hInstance,
					HINSTANCE hPrevInstance,
					LPTSTR    lpCmdLine,
					int       nCmdShow)
{
 	int retcode;

    g_hInst = hInstance;   //  Save instance handle in global
    InitCommonControls();

    retcode = DialogBox( g_hInst, MAKEINTRESOURCE(IDD_SETUP_DIALOG), NULL, (DLGPROC)MainDlgProc );

    return(retcode);
}

// === Main Window (dialog) Proc ==============================================
BOOL WINAPI MainDlgProc(
    HWND hDlg, 
    UINT Msg, 
    WPARAM wParam, 
    LPARAM lParam
    )
{
    switch (Msg)
    {

    case WM_CLOSE:
        //Clean up on Close and remove tray icons
        TrayIconDelete(hDlg, ID_TRAY, LoadIcon( g_hInst, MAKEINTRESOURCE(APP_ICON) ), NULL);
        EndDialog(hDlg, TRUE);
        return(TRUE);

    case WM_INITDIALOG:
        //On Pocket PC devices you normally create all Dialog's as fullscreen dialog's
        // with an OK button in the upper corner. 
        SHINITDLGINFO shidi;
        // Create a Done button and size it.
        shidi.dwMask = SHIDIM_FLAGS;
        shidi.dwFlags = SHIDIF_DONEBUTTON | SHIDIF_SIPDOWN | SHIDIF_SIZEDLGFULLSCREEN;
        shidi.hDlg = hDlg;
        //initialzes the dialog based on the dwFlags parameter
        SHInitDialog(&shidi);
        //Set Tray Icon
        TrayIconAdd(hDlg, ID_TRAY, LoadIcon(g_hInst, MAKEINTRESOURCE(IDI_TRAYAPP)), NULL);
        SetForegroundWindow(hDlg);	// make us come to the front
		//打开GAPI显示
		if(GXOpenDisplay(hDlg,GX_FULLSCREEN)==0) 
		{
			return FALSE;   //无法进行GAPI绘图
		}
		else
		{
			//取得显示属性
			g_gxdp = GXGetDisplayProperties();
			SetTimer(hDlg,1234,500,0);
		}
        return(TRUE);
  
    case WM_COMMAND:
        switch (GET_WM_COMMAND_ID(wParam,lParam))
        {

        case IDCANCEL:
            g_bPalmTrayAppActive = FALSE;
            TrayIconDelete(hDlg, ID_TRAY, LoadIcon( g_hInst, MAKEINTRESOURCE(IDI_TRAYAPP)), NULL);
            EndDialog( hDlg, TRUE );
			KillTimer(hDlg,1234);
			GXCloseDisplay();
            return(TRUE);
            break;

        case IDOK:
            //Hide window 
            if(FALSE == g_bWinHide)
            {
                ShowWindow(hDlg,SW_HIDE);
                g_bWinHide = TRUE;
            }
            //Active state
            PostMessage(hDlg, WM_COMMAND, (WPARAM)WM_TRAYAPP,0); 
			
            return(TRUE);               
            break;
        }

    case TRAY_NOTIFYICON:
        switch (lParam)
        {
        case WM_LBUTTONDOWN:
            if (ID_TRAY == wParam)
            {
                g_bPalmTrayAppActive = FALSE;
                if (TRUE == g_bWinHide)
                {
                    ShowWindow(hDlg, SW_SHOW);
                    SetForegroundWindow(hDlg);	// make us come to the front
                    g_bWinHide = FALSE;
                } 
                else 
                {
                    g_bWinHide = TRUE;
                }
            }
            break;
        }

        break;

	case WM_TIMER:
		RefreshScreen();
		break;
  
    }
    return( FALSE );
}