gistfile1.c

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>

#ifndef __GNUC__
#pragma comment(lib, "gdi32.lib")   /**/
#pragma comment(lib, "user32.lib")  /**/
#endif

#define N (100)
typedef struct {
    int     ID;
    double  x,y;
    char    Sym;
    int     Num;
    int     Next[4];
} SDt;
SDt D[N] = {{0}};
int Num = 0;

int SplitStr(char* s, char** p) {
    int i,j;
    for (i=0 ; s[i] ; i++) if (s[i]=='\n' || s[i]=='\r') s[i]=0;
    for (i=j=0 ; s[i] ; i++){
        if (j==0) {
            p[j] = s;
            j++;
            continue;
        }
        if (s[i]==' ') {
            s[i] = 0;
            p[j] = &s[i+1];
            j++;
        }
        if (j>=9) break;
    }
    return j;
}
void OnMyCreate(HWND hWnd) {
    FILE*   f;
    char    s[1000];
    char*   p[10];
    int     i = 0;
    if (!(f=fopen("map.dat","r")))  return;
    while (fgets(s,sizeof(s),f)) {
        if (SplitStr(s,p)<9) continue;
        D[i].ID      = atoi  (p[0]);
        D[i].x       = strtod(p[1],NULL);
        D[i].y       = strtod(p[2],NULL);
        D[i].Sym     =       *p[3];
        D[i].Num     = atoi  (p[4]);
        D[i].Next[0] = atoi  (p[5]);
        D[i].Next[1] = atoi  (p[6]);
        D[i].Next[2] = atoi  (p[7]);
        D[i].Next[3] = atoi  (p[8]);
        i++;
        if (i>=N)   break;
    }
    Num = i;
    fclose(f);
}

void OnMyPaint(HWND hWnd) {
    HDC         hDC;
    PAINTSTRUCT ps;
    int         i,j,x,y,x1,y1;
    char        str[2] = {0};
    hDC = BeginPaint(hWnd, &ps);
    
    for (i=0 ; i<Num ; i++) {
        x = D[i].x *100 +300;
        y = D[i].y *100 +300;
        for (j=0 ; j<D[i].Num ; j++) {
            x1 = D[D[i].Next[j]-1].x *100 +300;
            y1 = D[D[i].Next[j]-1].y *100 +300;
            MoveToEx(hDC, x , y , NULL);
            LineTo  (hDC, x1, y1);
        }
    }
    for (i=0 ; i<Num ; i++) {
        x = D[i].x *100 +300;
        y = D[i].y *100 +300;
        str[0] = D[i].Sym;
        TextOut(hDC, x-5, y-5, (LPCSTR)str, strlen(str));
    }
    
    EndPaint(hWnd, &ps);
    return;
}

#define MY_CLASS_NAME   "Test469Class"
#define MY_WINDOW_TITLE "Test469"

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain
    (   HINSTANCE   hInstance
    ,   HINSTANCE   hPrevInstance
    ,   LPSTR       lpCmdLine
    ,   int         nCmdShow
    )
{
    MSG         msg;
    WNDCLASSEX  wcex;
    HWND        hWnd;
    
    freopen("Debug.txt","w",stdout);
    
    if(hPrevInstance == NULL) {
        wcex.cbSize         = sizeof(WNDCLASSEX);
        wcex.style          = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc    = WndProc;
        wcex.cbClsExtra     = 0;
        wcex.cbWndExtra     = 0;
        wcex.hInstance      = hInstance;
        wcex.hIcon          = LoadIcon(NULL, IDI_APPLICATION);
        wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
        wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
        wcex.lpszMenuName   = 0;
        wcex.lpszClassName  = MY_CLASS_NAME;
        wcex.hIconSm        = 0;
        if (RegisterClassEx(&wcex) == 0)    return 0;
    }
    hWnd    = CreateWindow
                (   MY_CLASS_NAME
                ,   MY_WINDOW_TITLE
                ,   WS_OVERLAPPEDWINDOW
                ,   CW_USEDEFAULT
                ,   CW_USEDEFAULT
                ,   CW_USEDEFAULT
                ,   CW_USEDEFAULT
                ,   (HWND)NULL
                ,   (HMENU)NULL
                ,   hInstance
                ,   (LPVOID)NULL
                );
    if (!hWnd)  return 0;
    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);
    
    while (GetMessage(&msg, (HWND)NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    
    return msg.wParam;
}

LRESULT CALLBACK WndProc
    (   HWND    hWnd
    ,   UINT    uMsg
    ,   WPARAM  wParam
    ,   LPARAM  lParam
    )
{
    switch (uMsg) {
    case WM_CREATE:     OnMyCreate(hWnd);       break;
    case WM_DESTROY:    PostQuitMessage(0);     break;
    case WM_PAINT:      OnMyPaint(hWnd);        break;
    default:    return  DefWindowProc(hWnd,uMsg,wParam,lParam);
    }
    return 0;
}