/*

    File:       main.cp

    Version:    Mac OS X

    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

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                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

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                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Copyright © 2002 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

#include "ColorSwatch.h"

// -----------------------------------------------------------------------------

//  prototypes

// -----------------------------------------------------------------------------

//

pascal OSStatus ButtonHandler(

    EventHandlerCallRef     inHandlerCallRef,

    EventRef                inEvent,

    void*                   inUserData );

// -----------------------------------------------------------------------------

//  constants

// -----------------------------------------------------------------------------

//

const UInt32    kSwatch1    = 'clr1';

const UInt32    kSwatch2    = 'clr2';

const UInt32    kSwap       = 'swap';

// -----------------------------------------------------------------------------

//  globals

// -----------------------------------------------------------------------------

//

WindowRef   gWindow;

ControlRef  gSwatchControl1, gSwatchControl2;

// -----------------------------------------------------------------------------

//  main

// -----------------------------------------------------------------------------

//

int main( void )

{

    IBNibRef            nibRef;

    OSStatus            err;

    HIRect              bounds = { { 20, 20 }, { 40, 30 } };

    RGBColor            swatchColor1 = { 0xFFFF, 0, 0 }, swatchColor2 = { 0, 0, 0xFFFF };

    ProcessSerialNumber psn;

    const EventTypeSpec kButtonEvents[] = { { kEventClassCommand, kEventCommandProcess } };

    MacGetCurrentProcess( &psn );

    SetFrontProcess( &psn );

    err = CreateNibReference( CFSTR("main"), &nibRef );

    require_noerr( err, CantGetNibRef );

    err = SetMenuBarFromNib( nibRef, CFSTR("MenuBar") );

    require_noerr( err, CantSetMenuBar );

    err = CreateWindowFromNib( nibRef, CFSTR("MainWindow"), &gWindow );

    require_noerr( err, CantCreateWindow );

    DisposeNibReference( nibRef );

    // turn on drag tracking for controls in this window

    SetAutomaticControlDragTrackingEnabledForWindow( gWindow, true );

    // create color swatch controls

    err = HIColorSwatchCreate( gWindow, &bounds, swatchColor1, &gSwatchControl1 );

    SetControlCommandID( gSwatchControl1, kSwatch1 );

    bounds.origin.x += 100;

    err = HIColorSwatchCreate( gWindow, &bounds, swatchColor2, &gSwatchControl2 );

    SetControlCommandID( gSwatchControl2, kSwatch2 );

    ShowControl( gSwatchControl1 );

    ShowControl( gSwatchControl2 );

    InstallApplicationEventHandler( ButtonHandler, GetEventTypeCount( kButtonEvents ),

            kButtonEvents, NULL, NULL );

    // The window was created hidden so show it.

    ShowWindow( gWindow );

    // Call the event loop

    RunApplicationEventLoop();

    DisposeControl( gSwatchControl1 );

    DisposeControl( gSwatchControl2 );

CantCreateWindow:

CantSetMenuBar:

CantGetNibRef:

    return err;

}

// -----------------------------------------------------------------------------

//  ButtonHandler

// -----------------------------------------------------------------------------

//

pascal OSStatus ButtonHandler(

    EventHandlerCallRef inHandlerCallRef,

    EventRef            inEvent,

    void*               inUserData )

{

#pragma unused( inHandlerCallRef, inUserData )

    OSStatus    err = eventNotHandledErr;

    HICommand   command;

    RGBColor    color1, color2;

    err = GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand,

            NULL, sizeof( command ), NULL, &command );

    switch( command.commandID )

    {

        case kSwap:

            err = HIColorSwatchGetColor( gSwatchControl1, &color1 );

            err = HIColorSwatchGetColor( gSwatchControl2, &color2 );

            err = HIColorSwatchSetColor( gSwatchControl1, color2 );

            err = HIColorSwatchSetColor( gSwatchControl2, color1 );

            break;

        case kSwatch1:

            err = HIColorSwatchGetColor( gSwatchControl1, &color1 );

            SetWindowContentColor( gWindow, &color1 );

            // cause the window to repaint

            DisableScreenUpdates();

            HideWindow( gWindow );

            ShowWindow( gWindow );

            EnableScreenUpdates();

            break;

        case kSwatch2:

            err = HIColorSwatchGetColor( gSwatchControl2, &color2 );

            SetWindowContentColor( gWindow, &color2 );

            // cause the window to repaint

            DisableScreenUpdates();

            HideWindow( gWindow );

            ShowWindow( gWindow );

            EnableScreenUpdates();

            break;

        return err;

    }

    return eventNotHandledErr;

}