/*

    File:       SVAEClone.c

    Contains:   

    Written by: Original version by Jon Lansdell and Nigel Humphreys.

                3.1 updates by Greg Sutton.

    Copyright:  Copyright © 1995-1999 by Apple Computer, Inc., All Rights Reserved.

                You may incorporate this Apple sample source code into your program(s) without

                restriction. This Apple sample source code has been provided "AS IS" and the

                responsibility for its operation is yours. You are not permitted to redistribute

                this Apple sample source code as "Apple sample source code" after having made

                changes. If you're going to re-distribute the source, we require that you make

                it clear in the source that the code was descended from Apple sample source

                code, but that you've made changes.

    Change History (most recent first):

                7/20/1999   Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1

*/

#include "SVAEClone.h"

#include "SVEditAEUtils.h"

#include "SVAECreate.h"

#include "SVAEGetData.h"

#pragma segment AppleEvent

// Clone an object - only handles text objects

pascal OSErr    DoClone(const AppleEvent *theAppleEvent, AppleEvent *reply, long refcon)

{

#pragma unused (reply, refcon)

    AEDesc      directObj = {typeNull, NULL},

                insertHereDesc = {typeNull, NULL},

                resultDesc = {typeNull, NULL};

    OSErr       err;

    err = AEGetParamDesc(theAppleEvent, keyDirectObject, typeWildCard, &directObj);

    if (noErr != err) goto done;

    err = AEGetParamDesc(theAppleEvent, keyAEInsertHere, typeWildCard, &insertHereDesc);

    if (noErr != err) goto done;

    err = GotRequiredParams(theAppleEvent);

    if (noErr != err) goto done;

    err = CloneDesc(&directObj, &insertHereDesc, &resultDesc);

    if (noErr != err) goto done;

    err = AddResultToReply(&resultDesc, reply, err);

done:

    if (directObj.dataHandle)

        AEDisposeDesc(&directObj);

    if (insertHereDesc.dataHandle)

        AEDisposeDesc(&insertHereDesc);

    return(err);

}

OSErr   CloneTextDesc(AEDesc* textDesc, AEDesc* insertHereDesc, AEDesc* result)

{

    TextToken       aTextToken;

    Size            actualSize;

    AEDesc          dataDesc = {typeNull, NULL},

                    propertyDesc = {typeNull, NULL};    // Use to pass no properties

    OSErr           err;

    if (typeMyText != textDesc->descriptorType)

        return(errAETypeError);

    GetRawDataFromDescriptor(textDesc, (Ptr)&aTextToken, sizeof(aTextToken), &actualSize);

    err = GetTextTextProperty(&aTextToken, &dataDesc);

    if (noErr != err) goto done;

    err = CreateText(cText, &dataDesc, insertHereDesc, &propertyDesc, result);

done:

    if (dataDesc.dataHandle)

        AEDisposeDesc(&dataDesc);

    return(err);

}

OSErr   CloneDesc(AEDesc* aDesc, AEDesc* insertHereDesc, AEDesc* result)

{

    AEDesc      cloneDesc = {typeNull, NULL},

                textDesc = {typeNull, NULL};

    OSErr       err;

    if (typeObjectSpecifier == aDesc->descriptorType)

        err = AEResolve(aDesc, kAEIDoMinimum, &cloneDesc);

    else

        err = AEDuplicateDesc(aDesc, &cloneDesc);

    if (noErr != err) goto done;

    switch (cloneDesc.descriptorType)

    {

        case typeAEList:

            err = errAETypeError;

            // We can't handle copying more than one item to the scrap

            break;

        default:

            err = AECoerceDesc(&cloneDesc, typeMyText, &textDesc);

            if (noErr != err) goto done;

            err = CloneTextDesc(&textDesc, insertHereDesc, result);

    }

done:

    if (cloneDesc.dataHandle)

        AEDisposeDesc(&cloneDesc);

    if (textDesc.dataHandle)

        AEDisposeDesc(&textDesc);

    return(err);

}