MacHack 1994/MacHack 1994.toast/MacHack™ 1987-1994/MacHack™ '87/Source ƒ.sea/Source ƒ/Pascal ƒ/Transskel.pas ƒ/skel demos/Skel ƒ/Skel.pas

Pascal/Delphi Source File | 1987-01-07 | 4.6 KB | 194 lines | [TEXT/PJMM]

{    TransSkel demonstration:  Traditional Skel}

{    This program mimics the original Skel application:  one sizable,}
{    dragable, non-closable dark gray window, an "About" alert and two}
{    dialogs.  Desk accessories supported.}

{    The project should include this file, TransSkelPas (or a project}
{    built from TransSkel.c),MacPasLib, and MacTraps.}

{    27 June 1986        Paul DuBois}
{    1 January 1987    Ωhm Software - port to LS Pascal    }

PROGRAM Skel;

    USES
        TransSkelPas;

    CONST
{    Resource numbers}

        fileMenuRes = 2;        { File menu }
        AboutAlrt = 1000;    { About box }
        theWindRes = 260;        { window }
        reportDlog = 257;        { message dialog box }
        aboutStr = 1;        { message strings }
        rattleStr = 2;
        frightStr = 3;

{ file menu item numbers }

        rattle = 1;
        frighten = 2;
        quit = 4;

    TYPE
        EventPtr = ^EventRecord;

    VAR
        theWind : WindowPtr;

{    Menu handles.  There isn't any apple menu here, since TransSkel will}
{    be told to handle it itself.}

        fileMenu : MenuHandle;

{ -------------------------------------------------------------------- }
{                        Menu handling procedures                        }
{ -------------------------------------------------------------------- }

{    Read a string resource and put into the Alert/Dialog paramtext}
{    values}

    PROCEDURE SetParamText (strNum : integer);

        VAR
            h : StringHandle;

    BEGIN
        h := GetString(strNum);
        HLock(Handle(h));
        ParamText(h^^, '', '', '');
        HUnlock(Handle(h));
    END;

{    Handle selection of "About Skel…" item from Apple menu}

    PROCEDURE DoAbout;

        VAR
            h : StringHandle;
            ignore : integer;

    BEGIN
        SetParamText(aboutStr);
        ignore := Alert(aboutAlrt, NIL);
    END;

{    Put up a dialog box with a message and an OK button.  The message}
{    is stored in the 'STR ' resource whose number is passed as strNum.}

    PROCEDURE report (strNum : integer);

        VAR
            theDialog : DialogPtr;
            itemHit : integer;

    BEGIN
        SetParamText(strNum);
        theDialog := GetNewDialog(Integer(reportDlog), Ptr(NIL), WindowPtr(-1));
        ModalDialog(NIL, itemhit);
        DisposDialog(theDialog);
    END;

{    Process selection from File menu.}

{    Rattle, Frighten    A dialog box with message}
{    Quit    Request a halt by calling SkelHalt().  This makes SkelMain}
{            return.}

    PROCEDURE DoFileMenu (item : integer);

    BEGIN
        CASE item OF
            rattle :
                Report(rattleStr);
            frighten :
                Report(frightStr);
            quit :
                SkelWhoa;
            OTHERWISE
                ;
        END;
    END;


{    Initialize menus.  Tell TransSkel to process the Apple menu}
{    automatically, and associate the proper procedures with the}
{    File and Edit menus.}

    PROCEDURE SetUpMenus;

    BEGIN
        SkelApple('About Skel...', @DoAbout);
        fileMenu := GetMenu(fileMenuRes);
        SkelMenu(fileMenu, @DoFileMenu, NIL);
    END;

{ -------------------------------------------------------------------- }
{                    Window handling procedures                            }
{ -------------------------------------------------------------------- }

    PROCEDURE WindActivate (active : Boolean);

    BEGIN
        DrawGrowIcon(theWind);    { make grow box reflect new window state }
    END;

{    On update event, can ignore the resizing information, since the whole}
{    window is always redrawn in terms of the current size, anyway.}
{    Content area is dark gray except scroll bar areas, which are white.}
{    Draw grow box as well.}

    PROCEDURE WindUpdate (resized : Boolean);

        VAR
            r : Rect;

    BEGIN
        r := theWind^.portRect;        { paint window dark gray }
        r.bottom := r.bottom - 15;            { don't bother painting the }
        r.right := r.right - 15;            { scroll bar areas }
        FillRect(r, dkGray);
        r := theWind^.portRect;    { paint scroll bar areas white }
        r.left := r.right - 15;
        FillRect(r, white);
        r := theWind^.portRect;
        r.top := r.bottom - 15;
        FillRect(r, white);
        DrawGrowIcon(theWind);
    END;

    PROCEDURE WindHalt;

    BEGIN
        CloseWindow(theWind);
    END;

{    Read window from resource file and install handler for it.  Mouse}
{    and key clicks are ignored.  There is no close proc since the window}
{    doesn't have a close box.  There is no idle proc since nothing is}
{    done while the window is in front (all the things that are done are}
{    handled by TransSkel).}

    PROCEDURE WindInit;

    BEGIN
        theWind := GetNewWindow(theWindRes, NIL, WindowPtr(-1));
        SetPort(theWind);
        SkelWindow(theWind, NIL, NIL, @WindUpdate, @WindActivate, NIL, @WindHalt, NIL, false);
    END;

{ -------------------------------------------------------------------- }
{                                    Main                                }
{ -------------------------------------------------------------------- }


BEGIN
    SkelInit;                { initialize }
    SetUpMenus;                { install menu handlers }
    WindInit;                    { install window handler }
    SkelMain;                { loop 'til Quit selected }
    SkelClobber;                { clean up }
END.