/*

    File:       main.cp

    Project:    ImageMapView

    Version:    1.0

    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,

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

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

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                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Copyright © 2005 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

#include "ImageMapView.h"

#include "ImageMap.h"

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

//  constants

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

//

enum

{

    kImageMapAndLabelGroupingPane   = 'Grpr',

    kImageMapView                   = 'IMVi',

    kImageMapLabel                  = 'IMLa',

    kModeSelector                   = 'Sele',

    kSelectorLabel                  = 'SelL',

    kCommandModeInvisibleHotSpots   = 'HSIn',

    kCommandModeVisibleHotSpots     = 'HSVi',

    kCommandModeRollovereHotSpots   = 'HSRo',

};

const ControlID kImageMapAndLabelGroupingPaneID = { kImageMapAndLabelGroupingPane, 0 };

const ControlID kImageMapViewID = { kImageMapView, 0 };

const ControlID kModeSelectorID = { kModeSelector, 0 };

const ControlID kSelectorLabelID = { kSelectorLabel, 0 };

const ControlID kImageMapLabelID = { kImageMapLabel, 0 };

const int kSelectorCount = 3;

const CFStringRef kFoodPyramidWindow = CFSTR( "FoodPyramidWindow" );

const CFStringRef kShapesWindow = CFSTR( "ShapesWindow" );

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

//  prototypes

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

//

OSStatus    AppEventHandler( EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void* inUserData );

OSStatus    WindowEventHandler( EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void* inUserData );

OSStatus    CreateWindow( CFStringRef inWindowName );

DEFINE_ONE_SHOT_HANDLER_GETTER( AppEventHandler );

DEFINE_ONE_SHOT_HANDLER_GETTER( WindowEventHandler );

CGImageRef  GetSelectorImage( int inIndex );

void        ChangeHotSpots( WindowRef inWindow, ImageMapHotSpots inHotSpotsKind );

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

//  main

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

//

int

main(

    int             argc,

    char*           argv[] )

{

    IBNibRef        nibRef;

    static const

    EventTypeSpec   kAppEventList[] = {

                        { kEventClassCommand, kEventProcessCommand } };

    OSStatus        err;

    ImageMapViewRegister();

    // Create a Nib reference passing the name of the nib file (without the .nib extension)

    // CreateNibReference only searches into the application bundle.

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

    require_noerr( err, CantGetNibRef );

    // Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar

    // object. This name is set in InterfaceBuilder when the nib is created.

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

    require_noerr( err, CantSetMenuBar );

    // We don't need the nib reference anymore.

    DisposeNibReference( nibRef );

    // Install the applcation event handler

    err = InstallApplicationEventHandler( GetAppEventHandlerUPP(),

            GetEventTypeCount( kAppEventList ), kAppEventList, NULL, NULL );

    require_noerr( err, CantInstallAppEventHandler );

    err = CreateWindow( kFoodPyramidWindow );

    require_noerr( err, CantCreateWindow );

    // Call the event loop

    RunApplicationEventLoop();

CantCreateWindow:

CantInstallAppEventHandler:

CantSetMenuBar:

CantGetNibRef:

    return err;

}

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

//  AppEventHandler

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

//

OSStatus

AppEventHandler(

    EventHandlerCallRef inHandlerCallRef,

    EventRef            inEvent,

    void*               inUserData )

{

    HICommand           hiCommand;

    OSStatus            err = eventNotHandledErr;

    // UInt32           eventClass = GetEventClass( inEvent );

    // UInt32           eventKind = GetEventKind( inEvent );

    // if ( eventClass == kEventClassCommand && eventKind == kEventProcessCommand )

    //{

        err = GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand,

            NULL, sizeof( HICommand ), NULL, &hiCommand );

        require_noerr( err, CantGetEventParameter );

        switch ( hiCommand.commandID )

        {

            case kHICommandNew:

                err = CreateWindow( kFoodPyramidWindow );

                break;

            case 'New2':

                err = CreateWindow( kShapesWindow );

                break;

            default:

                err = eventNotHandledErr;

                break;

        }

    //}

CantGetEventParameter:

    return err;

}

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

//  ChangeHotSpots

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

//

void

ChangeHotSpots(

    WindowRef               inWindow,

    ImageMapHotSpots        inHotSpotsKind )

{

    HIViewRef       imageMapView;

    verify_noerr( GetControlByID( inWindow, &kImageMapViewID, &imageMapView ) );

    ImageMapViewSetHotSpots( imageMapView, inHotSpotsKind );

}

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

//  CreateWindow

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

//

OSStatus

CreateWindow(

    CFStringRef     inWindowName )

{

    IBNibRef        nibRef;

    WindowRef       window;

    static const

    EventTypeSpec   kWindowEventList[] = {

                            { kEventClassCommand, kEventProcessCommand }

                        };

    OSStatus        err;

    HIViewRef       modeSelector, imageMapView;

    int             i;

    Rect            windowBounds;

    HIRect          frame, optimalBounds;

    HIViewRef       view;

    AXUIElementRef  uiElement;

    CFArrayRef      uiElements;

    // Create a Nib reference passing the name of the nib file (without the .nib extension)

    // CreateNibReference only searches into the application bundle.

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

    require_noerr( err, CantGetNibRef );

    // Then create a window. "MainWindow" is the name of the window object. This name is set in

    // InterfaceBuilder when the nib is created.

    err = CreateWindowFromNib( nibRef, inWindowName, &window );

    require_noerr( err, CantCreateWindow );

    // We don't need the nib reference anymore.

    DisposeNibReference( nibRef );

    // Install the window event handler

    err = InstallWindowEventHandler( window, GetWindowEventHandlerUPP(),

            GetEventTypeCount( kWindowEventList ), kWindowEventList, window, NULL );

    require_noerr( err, CantInstallWindowEventHandler );

    // Set the images on the segmented view (our mode selector)

    err = GetControlByID( window, &kModeSelectorID, &modeSelector );

    require_noerr( err, CantGetControlByID );

    HIViewSetValue( modeSelector, 1 );

    for ( i = 0; i < kSelectorCount; i++ )

    {

        HIViewImageContentInfo  contentInfo = { kHIViewContentCGImageRef };

        contentInfo.u.imageRef = GetSelectorImage( i );

        verify_noerr( HISegmentedViewSetSegmentImage( modeSelector, i + 1, &contentInfo ) );

        verify_noerr( HISegmentedViewSetSegmentContentWidth( modeSelector, i + 1, true, 0 ) );

    }

    // Since the segmented view is auto-sized, it needs to be centered.

    HIViewGetOptimalBounds( modeSelector, &frame, NULL );

    GetWindowBounds( window, kWindowContentRgn, &windowBounds );

    frame.origin.x = floorf( ( windowBounds.right - windowBounds.left - frame.size.width ) / 2 + 0.5 );

    HIViewSetFrame( modeSelector, &frame );

    // Size the image map view to its optimal size (likely the size of its image)

    GetControlByID( window, &kImageMapViewID, &imageMapView );

    HIViewGetOptimalBounds( imageMapView, &optimalBounds, NULL );

    HIViewGetFrame( imageMapView, &frame );

    frame.size = optimalBounds.size;

    HIViewSetFrame( imageMapView, &frame );

    // *** Set the accessibility description name of the image map view

    // - This is done external to the view implementation just to show that any host can set

    //   the description of a contained HIObject. Setting the description attribute could just

    //   as easily be done in the view implementation

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) imageMapView, 0, kAXDescriptionAttribute, ImageMapViewGetMapName( imageMapView ) );

    // *** Mark an element as the title element of another for accessibility. In this case, a

    // a static text control is the title element of our mode selector segemented view.

    GetControlByID( window, &kSelectorLabelID, &view );

    uiElement = AXUIElementCreateWithHIObjectAndIdentifier( (HIObjectRef) view, 0 );

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) modeSelector, 0, kAXTitleUIElementAttribute, uiElement );

    CFRelease( uiElement );

    // *** Let the static text item know that it is serving that purpose.

    uiElement = AXUIElementCreateWithHIObjectAndIdentifier( (HIObjectRef) modeSelector, 0 );

    uiElements = CFArrayCreate( kCFAllocatorDefault, (const void**) &uiElement, 1, &kCFTypeArrayCallBacks );

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) view, 0, kAXServesAsTitleForUIElementsAttribute, uiElements );

    CFRelease( uiElements );

    CFRelease( uiElement );

    // *** Set the accessibility descriptions of the sub-elements (the segments) of a segmented view.

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) modeSelector, 1, kAXDescriptionAttribute, CFSTR( "Invisible Hot Spots" ) );

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) modeSelector, 2, kAXDescriptionAttribute, CFSTR( "Visible Hot Spots" ) );

    HIObjectSetAuxiliaryAccessibilityAttribute( (HIObjectRef) modeSelector, 3, kAXDescriptionAttribute, CFSTR( "Rollover Hot Spots" ) );

    // *** There is a User Pane used to group the image map view and the image map label together.

    // Mark it as ignored for accessibility.

    GetControlByID( window, &kImageMapAndLabelGroupingPaneID, &view );

    HIObjectSetAccessibilityIgnored( (HIObjectRef) view, true );

    // The window was created hidden so show it.

    ShowWindow( window );

CantGetControlByID:

CantInstallWindowEventHandler:

CantCreateWindow:

CantGetNibRef:

    return err;

}

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

//  GetSelectorImage

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

//

CGImageRef

GetSelectorImage(

    int             inIndex )

{

    static

    CGImageRef      sSelectorImages[ kSelectorCount ] = { NULL };

    check( inIndex < kSelectorCount );

    // Lazy initialization. Use ImageIO to load the images.

    if ( sSelectorImages[ 0 ] == NULL )

    {

        CGImageSourceRef        imageSource;

        CFURLRef                imageUrl;

        CFStringRef             selectorImageNames[ kSelectorCount ] = {

                                        CFSTR( "InvisibleHotSpots.gif" ),

                                        CFSTR( "VisibleHotSpots.gif" ),

                                        CFSTR( "RolloverHighlighting.gif" ),

                                    };

        int                     i;

        for ( i = 0; i < kSelectorCount; i++ )

        {

            imageUrl = ::CFBundleCopyResourceURL( CFBundleGetMainBundle(), selectorImageNames[ i ], NULL, NULL );

            check( imageUrl != NULL );

            imageSource = ::CGImageSourceCreateWithURL( imageUrl, 0 );

            check( imageSource != NULL );

            sSelectorImages[ i ] = ::CGImageSourceCreateImageAtIndex( imageSource, 0, 0 );

            check( sSelectorImages[ i ] != NULL );

            ::CFRelease( imageSource );

            ::CFRelease( imageUrl );

        }

    }

    return sSelectorImages[ inIndex ];

}

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

//  WindowEventHandler

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

//

OSStatus

WindowEventHandler(

    EventHandlerCallRef inHandlerCallRef,

    EventRef            inEvent,

    void*               inUserData )

{

    HICommandExtended   hiCommand;

    OSStatus            err = eventNotHandledErr;

    UInt32              eventClass = GetEventClass( inEvent );

    UInt32              eventKind = GetEventKind( inEvent );

    WindowRef           window = (WindowRef) inUserData;

    if ( eventClass == kEventClassCommand && eventKind == kEventProcessCommand )

    {

        err = GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand,

            NULL, sizeof( HICommand ), NULL, &hiCommand );

        require_noerr( err, CantGetEventParameter );

        switch ( hiCommand.commandID )

        {

            case kCommandModeInvisibleHotSpots:

                ChangeHotSpots( window, kImageMapHotSpotsInvisible );

                break;

            case kCommandModeVisibleHotSpots:

                ChangeHotSpots( window, kImageMapHotSpotsVisible );

                break;

            case kCommandModeRollovereHotSpots:

                ChangeHotSpots( window, kImageMapHotSpotsRollover );

                break;

            case kImageMapView:

                {

                    HIViewRef       imageMapLabel;

                    // Set the label of the selected image map part, using the value

                    // of the image map view to select from an array of labels

                    verify_noerr( GetControlByID( window, &kImageMapLabelID, &imageMapLabel ) );

                    HIViewSetText( imageMapLabel, ImageMapViewGetSelectedName( hiCommand.source.control ) );

                }

                break;

            default:

                err = eventNotHandledErr;

                break;

        }

    }

CantGetEventParameter:

    return err;

}