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Annotation of pmsdk/samples/bigjob/object/object.c, revision 1.1

1.1     ! root        1: /*
        !             2:    Source code for OBJECT application
        !             3: */
        !             4: #define INCL_WIN
        !             5: #define INCL_DOS
        !             6: #include <os2.h>
        !             7: #include <math.h>
        !             8: #include <stdio.h>
        !             9: #include "object.h"
        !            10: 
        !            11: 
        !            12: #define STATUS_READY   0
        !            13: #define STATUS_WORKING 1
        !            14: #define STATUS_DONE    2
        !            15: 
        !            16: #define WM_OBJECT_CREATED    (WM_USER + 0)
        !            17: #define WM_START_CALC       (WM_USER + 1)
        !            18: #define WM_ABORT_CALC       (WM_USER + 2)
        !            19: #define WM_CALC_DONE        (WM_USER + 3)
        !            20: #define WM_CALC_ABORTED      (WM_USER + 4)
        !            21: #define WM_OBJECT_DESTROYED  (WM_USER + 5)
        !            22: 
        !            23: /* globals */
        !            24: HWND vhwndMenu;
        !            25: HAB  vhab;
        !            26: HWND vhwndClient;
        !            27: HWND vhwndObject;
        !            28: UCHAR vcThreadStack[4096];
        !            29: 
        !            30: 
        !            31: MRESULT FAR PASCAL WndProc(HWND hwnd,
        !            32:                           USHORT msg,
        !            33:                           MPARAM mp1,
        !            34:                           MPARAM mp2);
        !            35: VOID PASCAL FAR SecondThread(VOID);
        !            36: MRESULT FAR PASCAL ObjectWndProc(HWND hwnd,
        !            37:                              USHORT msg,
        !            38:                              MPARAM mp1,
        !            39:                              MPARAM mp2);
        !            40: 
        !            41: 
        !            42: 
        !            43: double Savage(double A)
        !            44: {
        !            45:     return tan(atan(exp(log(sqrt(A * A))))) + 1.0;
        !            46: }
        !            47: 
        !            48: 
        !            49: 
        !            50: VOID Paint(HWND hwnd,
        !            51:           SHORT iStatus,
        !            52:           SHORT iRep,
        !            53:           LONG lTime)
        !            54: {
        !            55:     static CHAR *szMessage[3] = {"Ready",
        !            56:                                 "Working...",
        !            57:                                 "%d reps in %ld msec."};
        !            58:     CHAR szBuffer[60];
        !            59:     HPS hps;
        !            60:     RECTL rcl;
        !            61: 
        !            62:     hps = WinBeginPaint(hwnd, (HPS)NULL, (PRECTL)NULL);
        !            63:     WinQueryWindowRect(hwnd, (PRECTL)&rcl);
        !            64:     WinFillRect(hps, (PRECTL)&rcl, SYSCLR_WINDOW);
        !            65:     sprintf(szBuffer, szMessage[iStatus], iRep, lTime);
        !            66:     WinDrawText(hps, -1, szBuffer, (PRECTL)&rcl,
        !            67:                SYSCLR_WINDOWTEXT, SYSCLR_WINDOW, DT_CENTER | DT_VCENTER);
        !            68:     WinEndPaint(hps);
        !            69: }
        !            70: 
        !            71: 
        !            72: 
        !            73: int cdecl  main(VOID)
        !            74: {
        !            75:     static CHAR szClass[] = "Big";
        !            76:     HMQ hmq;
        !            77:     HWND hwndFrame;
        !            78:     QMSG qmsg;
        !            79:     ULONG ulCreate;
        !            80:     TID idThread;
        !            81: 
        !            82:     vhab = WinInitialize(0);
        !            83:     hmq = WinCreateMsgQueue(vhab, 0);
        !            84: 
        !            85:     WinRegisterClass(vhab, szClass, WndProc,
        !            86:                     CS_SYNCPAINT | CS_SIZEREDRAW, NULL);
        !            87: 
        !            88:     ulCreate = FCF_TITLEBAR | FCF_SYSMENU | FCF_MINMAX |
        !            89:                FCF_SIZEBORDER | FCF_MENU;
        !            90:  
        !            91:     hwndFrame = WinCreateStdWindow(HWND_DESKTOP,
        !            92:                                   WS_VISIBLE,
        !            93:                                   (PVOID)&ulCreate,
        !            94:                                   szClass, (PSZ)"Big Object Window",
        !            95:                                   0L, NULL, ID_RESOURCE,
        !            96:                                   (HWND FAR *)&vhwndClient);
        !            97:     vhwndMenu = WinWindowFromID(hwndFrame, FID_MENU);
        !            98: 
        !            99:     WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_START, TRUE),
        !           100:               MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED));
        !           101: 
        !           102:     if (DosCreateThread(SecondThread, &idThread,
        !           103:                        vcThreadStack + sizeof vcThreadStack))
        !           104:        WinAlarm(HWND_DESKTOP, WA_ERROR);
        !           105: 
        !           106:     while (WinGetMsg(vhab, &qmsg, NULL, 0, 0))
        !           107:        WinDispatchMsg(vhab, &qmsg);
        !           108: 
        !           109:     WinDestroyWindow(hwndFrame);
        !           110:     WinDestroyMsgQueue(hmq);
        !           111:     WinTerminate(vhab);
        !           112:     return 0;
        !           113: }
        !           114: 
        !           115: 
        !           116: 
        !           117: MRESULT FAR PASCAL WndProc(HWND hwnd,
        !           118:                           USHORT msg,
        !           119:                           MPARAM mp1,
        !           120:                           MPARAM mp2)
        !           121: {
        !           122:     static SHORT iCalcRep, iCurrentRep = IDM_10;
        !           123:     static SHORT iStatus = STATUS_READY;
        !           124:     static ULONG lElapsedTime;
        !           125: 
        !           126: 
        !           127:     switch (msg) {
        !           128: 
        !           129:     case WM_OBJECT_CREATED:
        !           130:        WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_START, TRUE),
        !           131:                   MPFROM2SHORT(MIA_DISABLED, 0));
        !           132:        break;
        !           133: 
        !           134:     case WM_COMMAND:
        !           135: 
        !           136:        switch (SHORT1FROMMP(mp1)) {
        !           137: 
        !           138:        case IDM_10:
        !           139:        case IDM_100:
        !           140:        case IDM_1000:
        !           141:        case IDM_10000:
        !           142:            WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(iCurrentRep, TRUE),
        !           143:                       MPFROM2SHORT(MIA_CHECKED, 0));
        !           144:            iCurrentRep = SHORT1FROMMP(mp1);
        !           145:            WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(iCurrentRep, TRUE),
        !           146:                       MPFROM2SHORT(MIA_CHECKED, MIA_CHECKED));
        !           147:            break;
        !           148: 
        !           149:        case IDM_START:
        !           150:            WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_START, TRUE),
        !           151:                       MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED));
        !           152:            WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_ABORT, TRUE),
        !           153:                       MPFROM2SHORT(MIA_DISABLED, 0));
        !           154: 
        !           155:            iStatus = STATUS_WORKING;
        !           156:            WinInvalidateRect(hwnd, NULL, FALSE);
        !           157: 
        !           158:            iCalcRep = iCurrentRep;
        !           159:            WinPostMsg(vhwndObject, WM_START_CALC, MPFROMLONG(iCalcRep), 0L);
        !           160: 
        !           161:            break;
        !           162: 
        !           163:        case IDM_ABORT:
        !           164:            WinPostMsg(vhwndObject, WM_ABORT_CALC, 0L, 0L);
        !           165:            WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_ABORT, TRUE),
        !           166:                       MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED));
        !           167:        default:
        !           168:            break;
        !           169: 
        !           170:        }
        !           171:        break;
        !           172: 
        !           173:     case WM_CALC_DONE:
        !           174:        iStatus = STATUS_DONE;
        !           175:        lElapsedTime = LONGFROMMP(mp1);
        !           176:        WinInvalidateRect(hwnd, NULL, FALSE);
        !           177:        WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_START, TRUE),
        !           178:                   MPFROM2SHORT(MIA_DISABLED, 0));
        !           179:        WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_ABORT, TRUE),
        !           180:                   MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED));
        !           181:        break;
        !           182: 
        !           183:     case WM_CALC_ABORTED:
        !           184:        iStatus = STATUS_READY;
        !           185:        WinInvalidateRect(hwnd, NULL, FALSE);
        !           186:        WinSendMsg(vhwndMenu, MM_SETITEMATTR, MPFROM2SHORT(IDM_START, TRUE),
        !           187:                   MPFROM2SHORT(MIA_DISABLED, 0));
        !           188:        break;
        !           189: 
        !           190:     case WM_PAINT:
        !           191:        Paint(hwnd, iStatus, iCalcRep, lElapsedTime);
        !           192:        break;
        !           193: 
        !           194:     case WM_CLOSE:
        !           195:        if (vhwndObject)
        !           196:            WinPostMsg(vhwndObject, WM_QUIT, 0L, 0L);
        !           197:        else
        !           198:            WinPostMsg(hwnd, WM_QUIT, 0L, 0L);
        !           199:        break;
        !           200: 
        !           201:     case WM_OBJECT_DESTROYED:
        !           202:        WinPostMsg(hwnd, WM_QUIT, 0L, 0L);
        !           203:        break;
        !           204: 
        !           205:     default:
        !           206:        return WinDefWindowProc(hwnd, msg, mp1, mp2);
        !           207:     }
        !           208: 
        !           209:     return 0L;
        !           210: }
        !           211: 
        !           212: 
        !           213: 
        !           214: VOID PASCAL FAR SecondThread(VOID)
        !           215: {
        !           216:     static CHAR szObjectClass[] = "Big Object";
        !           217:     HMQ hmq;
        !           218:     QMSG qmsg;
        !           219: 
        !           220:     hmq = WinCreateMsgQueue(vhab, 0);
        !           221: 
        !           222:     WinRegisterClass(vhab, szObjectClass, ObjectWndProc, 0L, NULL);
        !           223: 
        !           224:     vhwndObject = WinCreateWindow(HWND_OBJECT, szObjectClass, NULL, 0L,
        !           225:                                  0, 0, 0, 0, NULL, HWND_TOP, 0, NULL, NULL);
        !           226:     WinPostMsg(vhwndClient, WM_OBJECT_CREATED, 0L, 0L);
        !           227:     while (WinGetMsg(vhab, &qmsg, NULL, 0, 0))
        !           228:        WinDispatchMsg(vhab, &qmsg);
        !           229: 
        !           230:     WinDestroyWindow(vhwndObject);
        !           231:     WinDestroyMsgQueue(hmq);
        !           232: 
        !           233:     WinPostMsg(vhwndClient, WM_OBJECT_DESTROYED, 0L, 0L);
        !           234: 
        !           235:     DosExit(0, 0);
        !           236: }
        !           237: 
        !           238: 
        !           239: 
        !           240: MRESULT FAR PASCAL ObjectWndProc(HWND hwnd,
        !           241:                                 USHORT msg,
        !           242:                                 MPARAM mp1,
        !           243:                                 MPARAM mp2)
        !           244: {
        !           245:     double A;
        !           246:     SHORT i, iCalcRep;
        !           247:     LONG lQueueStatus, lTime;
        !           248:     switch (msg) {
        !           249:     case WM_START_CALC:
        !           250:        iCalcRep = SHORT1FROMMP(mp1);
        !           251:        lTime = WinGetCurrentTime(vhab);
        !           252: 
        !           253:        for (A = 1.0, i = 0; i < iCalcRep; i++) {
        !           254:            lQueueStatus = WinQueryQueueStatus(HWND_DESKTOP);
        !           255:            if (lQueueStatus & QS_POSTMSG)
        !           256:                break;
        !           257: 
        !           258:            A = Savage(A);
        !           259:        }
        !           260:        if (lQueueStatus & QS_POSTMSG)
        !           261:            break;
        !           262:        lTime = WinGetCurrentTime(vhab) - lTime;
        !           263: 
        !           264:        WinPostMsg(vhwndClient, WM_CALC_DONE, MPFROMLONG(lTime), 0L);
        !           265:        break;
        !           266: 
        !           267:     case WM_ABORT_CALC:
        !           268:        WinPostMsg(vhwndClient, WM_CALC_ABORTED, 0L, 0L);
        !           269:        break;
        !           270: 
        !           271:     default:
        !           272:        return WinDefWindowProc(hwnd, msg, mp1, mp2);
        !           273:     }
        !           274: 
        !           275:     return 0L;
        !           276: }

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