/*

    File:       PixMap2PixPat2ppat.c

    Contains:   This snippet shows how to convert a 'icl8' image to a   

                PixMap image and then to a PixPat and then finally to       

                a 'ppat' resource.  In this example, the 'ppat'             

                resource is saved-off into a resource file. 

    Written by: EL  

    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

                        use, installation, modification or redistribution of this Apple software

                        constitutes acceptance of these terms.  If you do not agree with these terms,

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

                        In consideration of your agreement to abide by the following terms, and subject

                        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

                        COMBINATION WITH YOUR PRODUCTS.

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

                        CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

                        GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

                        ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

                        OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT

                        (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN

                        ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Change History (most recent first):

        6/2003      MK              Updated for ProjectBuilder

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

                                                        for demonstration purposes.

        5/9/2000    DH              Updated to use GetPixRowBytes() and not leak PixMap.

        7/13/1999   KG              Updated for Metrowerks Codewarror Pro 2.1

*/

#include "CarbonPrefix.h"

/* Constant Declarations */

#define WWIDTH      320

#define WHEIGHT     160

/* Global Variable Definitions */

WindowPtr   gWindow;

void initMac();

void createWindow();

void doEventLoop();

void drawWindow();

void createPixMap();

void PixMap2PixPat();

void PixPat2ppat();

void ppat2file(Handle, Str255);

int main()

{

    PixMapHandle    pixmap;

    PixPatHandle    pixpat;

    initMac();

    pixmap = NewPixMap();

    pixpat = NewPixPat();

    createWindow();

    createPixMap( pixmap );

    PixMap2PixPat( pixmap, pixpat );

    PixPat2ppat( pixpat );

    doEventLoop( pixpat );

        return 0;

}

void initMac()

{

    InitCursor();

    FlushEvents( 0, everyEvent );

}

void createWindow()

{

    Rect rect;

    BitMap  bitMap;

    int top, left;

    GetQDGlobalsScreenBits(&bitMap);

    left = (((bitMap.bounds.right - bitMap.bounds.left) - WWIDTH) / 2);

    top = (((bitMap.bounds.bottom - bitMap.bounds.top) - WHEIGHT) / 2);

    SetRect( &rect, left, top, left + WWIDTH, top + WHEIGHT );

    gWindow = NewCWindow( 0L, &rect, "\pPixMap2PixPat2ppat", true, noGrowDocProc,

                            (WindowPtr)-1L, true, 0L );

    SetPortWindowPort( gWindow );

}

void createPixMap( pixmap )

PixMapHandle    pixmap;

{

    Handle      iclHandle;

    char        depth;

    Rect        rect;

    SetRect( &rect, 0, 0, 32, 32 );

    depth = 8;

    /* Create a pixmap from the icl8 pixel image. */

    iclHandle = GetResource( 'icl8', 129 );

    HLock( iclHandle );

    HNoPurge( iclHandle );

    (**pixmap).baseAddr = *iclHandle;

    (**pixmap).rowBytes = (((rect.right - rect.left) * depth) / 8) | 0x8000;

    (**pixmap).bounds = rect;

    (**pixmap).pmVersion = 0;

    (**pixmap).packType = 0;

    (**pixmap).packSize = 0;

    (**pixmap).hRes = 0x00480000;

    (**pixmap).vRes = 0x00480000;

    (**pixmap).pixelSize = depth;

    (**pixmap).pixelType = 0;

    (**pixmap).cmpCount = 1;

    (**pixmap).cmpSize = depth;

    (**pixmap).pmTable = GetCTable( depth );

}

void PixMap2PixPat( pixmap, pixpat )

PixMapHandle    pixmap;

PixPatHandle    pixpat;

{

    Handle      image;

    long        imageSize;

    //  Dispose of the old patMap first

    DisposePixMap( (**pixpat).patMap );

    (**pixpat).patMap = pixmap;

    //  Compute the size of the image using GetPixRowBytes(), not rowBytes!

    imageSize = GetPixRowBytes((**pixpat).patMap) *

                ((**(**pixpat).patMap).bounds.bottom -

                (**(**pixpat).patMap).bounds.top);

    PtrToHand( (**pixmap).baseAddr, &image, imageSize );

    (**pixpat).patData = image;

}

void PixPat2ppat( pixpat )

PixPatHandle    pixpat;

{

    Handle          ppat;

    PixPatHandle    pixpatCopy;

    long            pixmapSize, pixpatSize, imageSize, ctableSize;

    pixpatCopy = NewPixPat();

    HLock((Handle)pixpatCopy);

    HLock((Handle)pixpat);

    CopyPixPat( pixpat, pixpatCopy );

    pixmapSize  = sizeof( PixMap );

    pixpatSize  = sizeof( PixPat );

    imageSize   = GetPixRowBytes((**pixpatCopy).patMap) *

                ((**(**pixpatCopy).patMap).bounds.bottom -

                (**(**pixpatCopy).patMap).bounds.top);

    ctableSize  = sizeof( ColorTable ) +

                (**(**(**pixpatCopy).patMap).pmTable).ctSize *

                sizeof( ColorSpec );

    /********************************************/

    /* Allocate memory for the 'ppat' resource. */

    /********************************************/

    ppat = NewHandleClear( pixpatSize + pixmapSize + imageSize + ctableSize );

    HLock((Handle)ppat);

    /**********************/

    /* Fill the resource. */

    /**********************/

    BlockMove( *(**(**pixpatCopy).patMap).pmTable,

                *ppat + pixpatSize + pixmapSize + imageSize, ctableSize );

    (**(**pixpatCopy).patMap).pmTable = (CTabHandle)(pixpatSize + pixmapSize + imageSize);

    BlockMove( *(**pixpatCopy).patData, *ppat + sizeof( PixPat ) + sizeof( PixMap), imageSize );

    (**pixpatCopy).patData = (Handle)(pixpatSize + pixmapSize);

    BlockMove( *(**pixpatCopy).patMap, *ppat + sizeof( PixPat ), pixmapSize );

    (**pixpatCopy).patMap = (PixMapHandle)pixpatSize;

    BlockMove( *pixpatCopy, *ppat, pixpatSize );

    /************************************************/

    /* Finally, save the 'ppat' resource to a file. */

    /************************************************/

    ppat2file( ppat, "\pppat file.rsrc" );

    HUnlock((Handle)ppat);

    HUnlock((Handle)pixpatCopy);

    HUnlock((Handle)pixpat);

}

void ppat2file( Handle ppat, Str255 fname )

{

    // Old routine deleted, replaced by all carbon routines using FSSpec

    // Only light error checking, more robust apps should have more extensive

    // error checking.

    OSErr   anErr;

    FSSpec  fspec;

    int     refNum;

    anErr = FSMakeFSSpec(0, 0, fname, &fspec);

    FSpCreateResFile(&fspec, 'RSED', 'rsrc', smSystemScript);

    if (ResError() == dupFNErr) {

        anErr = FSpDelete(&fspec);

        FSpCreateResFile(&fspec, 'RSED', 'rsrc', smSystemScript);

    }

    if (ResError() != noErr || (anErr != noErr && anErr != fnfErr))

        return;

    refNum = FSpOpenResFile(&fspec, fsRdWrPerm);

    anErr = ResError();

    if (anErr == noErr) {

        AddResource( ppat, 'ppat', UniqueID( 'ppat' ), "\pMy ppat" );

        anErr = ResError();

        CloseResFile(refNum);

        anErr = ResError();

    }

}

void drawWindow( pixpat )

PixPatHandle    pixpat;

{

    Rect    tempRect1;

    //FillCRect( &(*gWindow).portRect, pixpat );

    FillCRect(GetPortBounds(GetWindowPort(gWindow), &tempRect1), pixpat);

    TextFont( kFontIDTimes );

    TextSize( 72 );

    TextMode( srcOr );

    ForeColor( blackColor );

    MoveTo( 80, 100 );

    DrawString( "\pDone." );

    ForeColor( yellowColor );

    MoveTo( 75, 95 );

    DrawString( "\pDone." );

}

void doEventLoop( pixpat )

PixPatHandle    pixpat;

{

    EventRecord event;

    WindowPtr   window;

    short       clickArea;

    Rect        screenRect;

    for (;;)

    {

        if (WaitNextEvent( everyEvent, &event, 0, nil ))

        {

            if (event.what == mouseDown)

            {

                clickArea = FindWindow( event.where, &window );

                if (clickArea == inDrag)

                {

                    //screenRect = (**GetGrayRgn()).rgnBBox;

                    GetRegionBounds(GetGrayRgn(), &screenRect);

                    DragWindow( window, event.where, &screenRect );

                }

                else if (clickArea == inContent)

                {

                    if (window != FrontWindow())

                        SelectWindow( window );

                }

                else if (clickArea == inGoAway)

                    if (TrackGoAway( window, event.where ))

                        return;

            }

            else if (event.what == updateEvt)

            {

                window = (WindowPtr)event.message;  

                //SetPort( window );

                SetPortWindowPort( window );

                BeginUpdate( window );

                drawWindow( pixpat );

                EndUpdate( window );

            }

        }

    }

}