/*

 *  File:       TS3Menu.c

 *

 *  Copyright © 1996 Apple Computer, Inc.

 */

#include <assert.h>

#include <Dialogs.h>

#include <Menus.h>

#include <Resources.h>

#include <TextUtils.h>

#include "SoundSprocket.h"

#include "TS3Main.h"

#include "TS3Menu.h"

#include "TS3Resource.h"

#include "TS3Sound.h"

#include "TS3TestAPI.h"

#include "TS3TestLoLevel.h"

#include "TS3TestHiLevel.h"

#include "TS3Window.h"

typedef struct Node Node;

struct Node {

    Node*           lo;

    Node*           hi;

    Str255          name;

};

static MenuHandle   gMenuSound              = NULL;

static MenuHandle   gMenuInterpolation      = NULL;

static short        gMenuSoundItem          = kSoundItem_Silence;

static short        gMenuInterpolationItem  = kInterpolationItem_Sinusoidal;

static void Insert(

    Node**          ioRoot,

    Node*           inNode);

static void Traverse(

    Node*           inNode);

static void SelectAppleMenu(

    short           inItem);

static void SelectFileMenu(

    short           inItem);

static void SelectSoundMenu(

    short           inItem);

static void SelectInterpolationMenu(

    short           inItem);

/* =============================================================================

 *      Menu_Init (external)

 *

 *  Initializes our menus.

 * ========================================================================== */

void Menu_Init(

    void)

{

    Node*           root;

    Node*           node;

    short           count;

    short           index;

    Handle          resource;

    short           resID;

    ResType         resType;

    Str255          resName;

    SetMenuBar(GetNewMBar(kMBarID_Main));

    DrawMenuBar();

    AppendResMenu(GetMenuHandle(kMenuID_Apple), 'DRVR');

    // Get the menus that we need

    gMenuSound = GetMenuHandle(kMenuID_Sound);

    gMenuInterpolation = GetMenuHandle(kMenuID_Interpolation);

    // Build the sound menu

    root = NULL;

    SetResLoad(false);

    count = Count1Resources('snd ');

    for (index = 1; index <= count; index++)

    {

        // Grab the resource name

        resource = Get1IndResource('snd ', index);

        assert(ResError() == noErr);

        assert(resource != NULL);

        GetResInfo(resource, &resID, &resType, resName);

        ReleaseResource(resource);

        // Insert a new node in the tree

        node = (Node*) NewPtr(sizeof(Node));

        assert(node != NULL);

        node->lo = NULL;

        node->hi = NULL;

        BlockMove(resName, node->name, resName[0]+1);

        Insert(&root, node);

    }

    SetResLoad(true);

    Traverse(root);

    // Check the right interpolation item

    CheckItem(gMenuInterpolation, gMenuInterpolationItem, true);

}

/* =============================================================================

 *      Insert (internal)

 *

 *  Sorts the given node into the tree.

 * ========================================================================== */

void Insert(

    Node**          ioRoot,

    Node*           inNode)

{

    if (*ioRoot != NULL)

    {

        if (CompareString((*ioRoot)->name, inNode->name, NULL) > 0)

        {

            Insert(&(*ioRoot)->lo, inNode);

        }

        else

        {

            Insert(&(*ioRoot)->hi, inNode);

        }

    }

    else

    {

        *ioRoot = inNode;

    }

}

/* =============================================================================

 *      Traverse (internal)

 *

 *  Appends the tree in alpha order onto the sound menu, and kills the tree.

 * ========================================================================== */

void Traverse(

    Node*           inNode)

{

    if (inNode != NULL)

    {

        Traverse(inNode->lo);

        AppendMenu(gMenuSound, inNode->name);

        Traverse(inNode->hi);

        DisposePtr((Ptr) inNode);

    }

}

/* =============================================================================

 *      Menu_Exit (external)

 *

 *  Cleans up.

 * ========================================================================== */

void Menu_Exit(

    void)

{

}

/* =============================================================================

 *      Menu_Select (external)

 *

 *  Takes action on the given menu item.

 * ========================================================================== */

void Menu_Select(

    short           inMenuID,

    short           inItem)

{

    switch (inMenuID)

    {

        case kMenuID_Apple:

            SelectAppleMenu(inItem);

        break;

        case kMenuID_File:

            SelectFileMenu(inItem);

        break;

        case kMenuID_Sound:

            SelectSoundMenu(inItem);

        break;

        case kMenuID_Interpolation:

            SelectInterpolationMenu(inItem);

        break;

        case kMenuID_LoLevelPreset:

            TestLoLevel_Preset(inItem);

        break;

        case kMenuID_HiLevelPreset:

            TestHiLevel_Preset(inItem);

        break;

    }

    HiliteMenu(0);

}

/* =============================================================================

 *      SelectAppleMenu (internal)

 *

 *  Takes action on the given Apple menu item.

 * ========================================================================== */

void SelectAppleMenu(

    short           inItem)

{

    switch (inItem)

    {

        case kAppleItem_About:

            Alert(kAlrtID_About, NULL);

        break;

    }

}

/* =============================================================================

 *      SelectFileMenu (internal)

 *

 *  Takes action on the given File menu item.

 * ========================================================================== */

void SelectFileMenu(

    short           inItem)

{

    switch (inItem)

    {

        case kFileItem_RunQuiet:

            TestAPI_Execute();

        break;

        case kFileItem_Config3DSound:

            Sound_Configure();

        break;

        case kFileItem_Quit:

            Main_LastRoundup();

        break;

    }

}

/* =============================================================================

 *      SelectSoundMenu (internal)

 *

 *  Takes action on the given Sound menu item.

 * ========================================================================== */

void SelectSoundMenu(

    short           inItem)

{

    Str255          name;

    CheckItem(gMenuSound, gMenuSoundItem, false);

    switch (inItem)

    {

        case kSoundItem_Silence:

            Sound_PlaySilence();

            gMenuSoundItem = kSoundItem_Silence;

        break;

        default:

            GetMenuItemText(GetMenuHandle(kMenuID_Sound), inItem, name);

            if (Sound_PlayResource(name))

            {

                gMenuSoundItem = inItem;

            }

            else

            {

                gMenuSoundItem = kSoundItem_Silence;

            }

    }

    CheckItem(gMenuSound, gMenuSoundItem, true);

}

/* =============================================================================

 *      SelectInterpolationMenu (internal)

 *

 *  Takes action on the given Interpolation menu item.

 * ========================================================================== */

void SelectInterpolationMenu(

    short           inItem)

{

    switch (inItem)

    {

        case kInterpolationItem_Sinusoidal:

        case kInterpolationItem_Triangular:

        case kInterpolationItem_Sawtooth:

            if (gMenuInterpolationItem != inItem)

            {

                CheckItem(gMenuInterpolation, gMenuInterpolationItem, false);

                gMenuInterpolationItem = inItem;

                CheckItem(gMenuInterpolation, gMenuInterpolationItem, true);

            }

        break;

    }

}

/* =============================================================================

 *      Menu_GetInterpolation (external)

 *

 *  Returns the current interpolation mode.

 * ========================================================================== */

short Menu_GetInterpolation(

    void)

{

    return gMenuInterpolationItem;

}