Utilities.c

/*
    File:       Utilities.c
 
    Contains:   General utility routines
 
    Written by: Chris White 
 
    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):
                8/10/1999   Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1
                
 
*/
 
 
#pragma segment Core
 
 
 
// System Includes
 
#ifndef __TYPES__
    #include <Types.h>
#endif
 
#ifndef __TEXTUTILS__
    #include <TextUtils.h>
#endif
 
#ifndef __DIALOGS__
    #include <Dialogs.h>
#endif
 
 
#ifndef __CODEFRAGMENTS__
    #include <CodeFragments.h>
#endif
 
 
// Application Includes
 
#ifndef __BAREBONES__
    #include "BareBones.h"
#endif
 
#ifndef __PROTOTYPES__
    #include "Prototypes.h"
#endif
 
 
 
 
 
StringPtr CopyPStr ( Str255 inSourceStr, StringPtr outDestStr, SInt16 inDestSize )
{
    SInt8 dataLen = inSourceStr[0] + 1;
    
    if ( dataLen > inDestSize )
        dataLen = inDestSize;
    BlockMoveData ( inSourceStr, outDestStr, dataLen );
    outDestStr[0] = dataLen - 1;
    
    return outDestStr;
}
 
 
 
StringPtr ConcatPStr ( Str255 ioFirstStr, Str255 inSecondStr, SInt16 inDestSize )
{
    SInt8 charsToCopy = inSecondStr[0];
    
    if ( ioFirstStr[0] + charsToCopy > inDestSize - 1 )
        charsToCopy = inDestSize - 1 - ioFirstStr[0];
    BlockMoveData ( inSecondStr + 1,  ioFirstStr + ioFirstStr[0] + 1, charsToCopy );
    ioFirstStr[0] += charsToCopy;
    
    return ioFirstStr;
}
 
 
 
void OSTypeToPStr ( OSType inOSType, StringPtr outString )
{
    BlockMoveData ( &inOSType, outString + 1, sizeof ( OSType ) );
    outString[0] = sizeof ( OSType );
 
    return;
}
 
 
 
void PStrToOSType ( StringPtr inString, OSType* outOSType )
{
    BlockMoveData ( inString + 1, outOSType, sizeof ( OSType ) );
 
    return;
}
 
 
 
//
// Tell the user that something went wrong
//
void AlertUser ( short messageCode, short errorNum, StringPtr theString )
{
    Str255      messageString;
    Str255      numberString;
    
    if ( messageCode > 0 )
        GetIndString ( messageString, kErrorStrings, messageCode );
    else
        messageString[0] = '\0';
     
    if ( errorNum != 0 )
        NumToString ( errorNum, numberString );
    else
        numberString[0] = '\0';
     
    ParamText ( messageString, numberString, theString, (StringPtr) "\p" );
    
    StopAlert ( kErrorDialog, nil );
    
    // We need to clear the param text so it isn't used by mistake
    ParamText ( (StringPtr) "\p", (StringPtr) "\p", (StringPtr) "\p", (StringPtr) "\p" );
    
    return;
}
 
 
 
void LocalToGlobalRect ( Rect* theRect )
{
    LocalToGlobal ( (Point*) &theRect->top );
    LocalToGlobal ( (Point*) &theRect->bottom );
    
    return;
}
 
 
 
Boolean IsMovableModal ( WindowRef theWindow )
{
    return (GetWVariant ( theWindow ) == movableDBoxProc);
}
 
 
 
#if DEBUGGING
void DebugStrNum ( Str255 str, SInt32 num )
{
    Str255 debug_str, tmp_str;
    
    BlockMoveData ( &str[0], &debug_str[0], str[0] + 1 );
    
    NumToString ( num , &tmp_str[0] );
    debug_str[debug_str[0] + 1] = ' ';
    BlockMoveData ( &tmp_str[1], &debug_str[debug_str[0] + 2], tmp_str[0] );
    debug_str[0] = debug_str[0] + tmp_str[0] + 1;
    DebugStr ( debug_str );
    
    return;
}
#endif