/*

    File:       RubberBandit.c

    Contains:   a simple srcXor rubber-banding example.

    Written by: DH

    Copyright:  Copyright © 1991-1999 by Apple Computer, Inc., All Rights Reserved.

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

                ("Apple") in consideration of your agreement to the following terms, and your

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                please do not use, install, modify or redistribute this Apple software.

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                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs

                copyrights in this original Apple software (the "Apple Software"), to use,

                reproduce, modify and redistribute the Apple Software, with or without

                modifications, in source and/or binary forms; provided that if you redistribute

                the Apple Software in its entirety and without modifications, you must retain

                this notice and the following text and disclaimers in all such redistributions of

                the Apple Software.  Neither the name, trademarks, service marks or logos of

                Apple Computer, Inc. may be used to endorse or promote products derived from the

                Apple Software without specific prior written permission from Apple.  Except as

                expressly stated in this notice, no other rights or licenses, express or implied,

                are granted by Apple herein, including but not limited to any patent rights that

                may be infringed by your derivative works or by other works in which the Apple

                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

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                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

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                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Change History (most recent first):

        6/2003      MK              Updated for Project Builder

        08/2000     JM              Carbonized, non-Carbon code is commented out

                                    for demonstration purposes.

        7/14/1999   KG              Updated for Metrowerks Codewarror Pro 2.1

*/

#include "CarbonPrefix.h"

/* constants:           */

#define testDLOG    1234

#define OK_button   1

/* function prototypes: */

extern void HandleDLOG(DialogPtr theDialog);

extern pascal Boolean RubberProc(DialogPtr theDialog, EventRecord *theEvent, short *itemHit);

extern void RubberBandIt(Point anchorPt);

extern Rect *CheckRect(Rect *theRect);

extern void DrawStuff(Rect *rubberRect);

extern void FanStuff(Rect *theRect);

int main() 

{

    DialogPtr   theDialog = NULL;

    /*InitGraf(&qd.thePort);

    InitFonts();

    FlushEvents(everyEvent, 0);

    InitWindows();

    InitMenus();

    TEInit();

    InitDialogs(0L);*/

    InitCursor();

    theDialog = GetNewDialog(testDLOG, NULL, (WindowPtr) -1L);

    if (theDialog != NULL) HandleDLOG(theDialog);

    ExitToShell();

        return 0;

}

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

    HandleDLOG calls ModalDialog and rubber-bands

    until the OK button is pressed.

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

void HandleDLOG(theDialog)

DialogPtr theDialog;

{

    short       itemHit;

    GrafPtr     oldPort;

    Point       anchorPt;

    do

    {

        ModalDialog(NULL, &itemHit);

        if (itemHit != OK_button)

        {

            GetPort(&oldPort);          /* Save the port, set it to our dialog, */

            //SetPort(theDialog);

            SetPortWindowPort(GetDialogWindow(theDialog));

            GetMouse(&anchorPt);        /* get the current mouse pos. and       */

            RubberBandIt(anchorPt);     /* rubber-band the image.               */

            SetPort(oldPort);           /* Restore the original port.           */

        }

    }

    while (itemHit != OK_button);

    DisposeDialog(theDialog);           /* Throw away the dialog.               */

}

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

    RubberBandIt follows the mouse and rubber-bands

    a design based on its position.  It retains

    control until the mouse button is released.

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

void RubberBandIt(anchorPt)

Point   anchorPt;

{

    Point   curMousePt = {0, 0};

    Rect    rubberRect;

    Pattern gray;

    CGrafPtr    currentPort;

    RgnHandle   rgnHandle = NewRgn();

    GetPort(&currentPort);

    PenMode(srcXor);                                /* Set pen mode to exclusive or.*/

    PenPat(&gray);

    GetMouse(&curMousePt);                          /* Get current mouse pos.       */

    rubberRect.top = anchorPt.v;                    /* Draw initial rectangle.      */

    rubberRect.left = anchorPt.h;

    rubberRect.bottom = curMousePt.v;

    rubberRect.right = curMousePt.h;

    DrawStuff(&rubberRect);

    while (Button())

    {

        GetMouse(&curMousePt);                      /* Get current mouse posÉ       */

        if (curMousePt.h != rubberRect.right ||     /* If mouse movedÉ              */

            curMousePt.v != rubberRect.bottom)

        {

            DrawStuff(&rubberRect);                 /* Erase oldÉ                   */

            rubberRect.bottom = curMousePt.v;

            rubberRect.right = curMousePt.h;

            DrawStuff(&rubberRect);                 /* and draw new.                */

            QDFlushPortBuffer(currentPort, GetPortVisibleRegion(currentPort, rgnHandle));

        }

    }

    DrawStuff(&rubberRect);                         /* Erase old at end.            */

    QDFlushPortBuffer(currentPort, GetPortVisibleRegion(currentPort, rgnHandle));

    DisposeRgn(rgnHandle);

}

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

    DrawStuff draws designs in the rectangle

    passed, using the current pen mode, etc.

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

void DrawStuff(rubberRect)

Rect    *rubberRect;

{

    Rect    curRect;

    curRect = *rubberRect;

    FrameRect(CheckRect(&curRect));

    FanStuff(CheckRect(&curRect));

}

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

    FanStuff draws a fanlike thing in the rect

    passed, using the current pen mode, etc.

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

void    FanStuff(theRect)

Rect    *theRect;

{

    short   ang;

    for (ang = 0; ang < 360; ang += 60)

        PaintArc(theRect, ang, 45);

}

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

    CheckRect makes sure that the top of the

    rectangle passed is ² the bottom and the left is

    ² the right.  FrameRect needs things this way.

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

Rect *CheckRect(theRect)

Rect    *theRect;

{

    short   temp;

    if (theRect->top > theRect->bottom)     /* Need to reverse top and bottom? */

    {

        temp = theRect->top;

        theRect->top = theRect->bottom;

        theRect->bottom = temp;

    }

    if (theRect->left > theRect->right)     /* Need to reverse left and right? */

    {

        temp = theRect->left;

        theRect->left = theRect->right;

        theRect->right = temp;

    }

    return theRect;                         /* This makes nested calls easier.  */

}