/*¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥

/* Globals.c

/*

/* Author: Michael Chen, Human Interface Group / ATG

/* Copyright © 1991-1993 Apple Computer, Inc.  All rights reserved.

/*

/* Part of Virtual Sphere Sample Code Release v1.1

/*¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥*/

#ifndef __GLOBALS__

#include "Globals.h"

#endif

#ifndef __DIALOGS__

#include <Dialogs.h>

#endif

#ifndef __SEGLOAD__

#include <SegLoad.h>

#endif

# include "Sample.h"

/* Declare globals used in menus */

short       gObjectDisplayed;           /* Which object is being draw currently */              

short       gRenderingStyle;            /* iLineDrawing, iFlatShading, iFlatShadingWithOutline */               

Boolean     gDoBackfacedPolygonRemoval;

Boolean     gDoubleBuffer;

Boolean     gDrawInColor;

/*=================================================================================================

/* DebugMessage

/*

/* Show a debugging message either to the debugger or in a dialog box

/* depending if the code is compiled for debugging (qDebug flag).

/*-------------------------------------------------------------------------------------------------*/

pascal void DebugMessage (Str255 message)

{

    if (qDebug) {

        DebugStr (message);

    } else {

        MessageAlert (message);

    }

}

/*=================================================================================================

/* EnableDisableItem

/*

/* Single routine to call EnableItem or DisableItem

/*-------------------------------------------------------------------------------------------------*/

pascal void EnableDisableItem (MenuHandle theMenu, short item, Boolean enable)

{

    if (enable) {

        EnableItem (theMenu, item);

    } else {

        DisableItem (theMenu, item);

    }

}

/*=================================================================================================

/* LocalToGlobalRect

/*

/* Returns a rect in global coordinate

/* Note the implicit dependency on the ordering of fields within a Rect

/*-------------------------------------------------------------------------------------------------*/

pascal void LocalToGlobalRect (Rect *globalRect)

{

    LocalToGlobal ((Point *) &(globalRect->top));

    LocalToGlobal ((Point *) &(globalRect->bottom));

}

/*=================================================================================================

/* MessageAlert

/*

/* Put up a message in an alert

/* Routine must be universal code

/*-------------------------------------------------------------------------------------------------*/

#ifdef applec

#pragma push                    /* MPW: save compiler flags         */

#pragma processor 68000         /* Generate 68000 instructions only */

#endif

pascal void MessageAlert (Str255 message)

{

    #ifdef THINK_C              /* THINK C: Generate 68020 instructionsÉ */

    #pragma options(!mc68020)   /* ÉNOT!  Silly way of saying 68000      */

    #endif                      /* instructions only.  Note this pragma  */

                                /* is defined only until end of routine. */

    SetCursor(&qd.arrow);

    ParamText (message, "", "", "");

    SysBeep (10);

    (void) Alert (rMessageAlert, nil);

}

#ifdef applec

#pragma pop                     /* MPW: restore compiler flags */

#endif

/*=================================================================================================

/* MessageAlertAndQuit

/*

/* Put up a message in an alert then quit out of application

/* Routine must be universal code

/*-------------------------------------------------------------------------------------------------*/

#ifdef applec

#pragma push                /* make sure error dialogs can be executed on all machines */

#pragma processor 68000

#endif

pascal void MessageAlertAndQuit (Str255 message)

{

    MessageAlert (message);

    ExitToShell();

}

#ifdef applec

#pragma pop

#endif

/*=================================================================================================

/* ScreenDepth

/*

/* Return the maximum monitor depth in the enclosing globalRect

/*-------------------------------------------------------------------------------------------------*/

pascal short ScreenDepth (const Rect *globalRect)

{

    GDHandle maxGDevice;

    maxGDevice = GetMaxDevice (globalRect);

    return ((**(**maxGDevice).gdPMap).pixelSize);

}