/*

    File:       TubeTest.c

    Contains:   The TubeTest program is a simple demonstration of how to use the Palette 

                Manager in a color program.  It has a special color palette that is associated

                with the main window.  The colors are animated using the Palette Manager 

                to give a flowing tube effect.  The program is very simple, and the Palette

                Manager and drawing parts are put in separate subroutines to make it easier

                to figure out what is happening.

                The program is still a complete Macintosh application with a Main Event Loop,

                so there is the extra code to run the MEL.  

                There is a resource file that is necessary as well, to define the Menus, Window,

                Dialog, and Palette resources used in the program.  

                See Sample and TESample for the general structure and MultiFinder techniques that

                we recommend that you use when building a new application.

    Written by: BJ  

    Copyright:  Copyright © 1988-1999 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):

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

                                            for demonstration purposes.

                7/14/1999   KG              Updated for Metrowerks Codewarror Pro 2.1

*/

#include "CarbonPrefix.h"

#include <Quickdraw.h>

#include <Palettes.h>

#include <Events.h>

#include <Menus.h>

#include <Windows.h>

#include <Dialogs.h>

#include <Devices.h>

#include <Events.h>

#include <ToolUtils.h>

#include <Sound.h>

#include <Gestalt.h>

/* Constants */

#define appleID             1000            /* resource IDs/menu IDs for Apple, */

#define fileID              1001            /*  File and */

#define editID              1002            /*  Edit menus */

#define appleM              0               /* Index for each menu in myMenus (array of menu handles) */

#define fileM               1

#define editM               2

#define menuCount           3               /* Total number of menus */

#define windowID            1000            /* Resource ID for main window */

#define aboutMeDLOG         1000            /* And Resource ID for About box dialog. */

#define tubularItem         1               /* When checked, animation of colors. */

#define quitItem            3               /* Quit in the menu of course. */

#define aboutMeCommand      1               /* Menu item in apple menu for About TubeTest item */

#define totalColors         152             /* use 150 colors in our palette for drawing eyes. */

#define numColors           150             /* to skip black and white. */

/* Globals */

MenuHandle  myMenus[menuCount];

Rect        dragRect;                       /* Rectangle used to mark bounds for dragging window */

Boolean     doneFlag,                       /* true if user has chosen Quit command */

            tubeCheck;                      /* if true, the menu is checked, and we animate. */

EventRecord myEvent;

WindowPtr   myWindow,

            whichWindow;

char        theChar;

OSErr       error;

SysEnvRec   theWorld;

/* Prototypes */

void DrawEyes();

void SetUpMenus();

void ShiftyColors();

void ShowAboutMeDialog();

void DoCommand(long int mResult);

/* Make the 2.0 Interface for passing Points to the Toolbox by address,

   emulate the 3.0 method of passing Points by value. This list only contains

   the affected routines actually used in this sample, and is not intended to

   be a comprehensive list of the affected routines. */

#ifdef MPW2

#   define FindWindow   FINDWINDOW

#   define MenuSelect   MENUSELECT

#endif

void main()

{

    /*

    **  Test the computer to be sure we can do color.  

    **  If not we would crash, which would be bad.  

    **  If we canÕt run, just beep and exit.

    */

    /*error = SysEnvirons(1, &theWorld);

    if (theWorld.hasColorQD == false) {

        SysBeep (50);

        ExitToShell();                          // If no color QD, we must leave. 

    };*/

    long    result;

    BitMap  bitMap;

    error = Gestalt(gestaltQuickdrawVersion, &result);

    if (result < gestalt8BitQD) {

        SysBeep (50);

        ExitToShell();

    }

    /*InitGraf(&qd.thePort);

    InitFonts();

    InitWindows();

    InitMenus();

    TEInit();

    InitDialogs(nil);*/

    InitCursor();

    GetQDGlobalsScreenBits(&bitMap);

    //SetRect(&dragRect, 4, 24, qd.screenBits.bounds.right - 4, qd.screenBits.bounds.bottom - 4);

    SetRect(&dragRect, 4, 24, bitMap.bounds.right - 4, bitMap.bounds.bottom - 4);

    doneFlag = false;                           /* flag to detect when Quit command is chosen */

    tubeCheck = false;                          /* flag for animating color is initially off. */

    /*

    **  Open the color window.

    */

    myWindow = GetNewCWindow(windowID, nil, (WindowPtr) -1);

    //SetPort(myWindow);

    SetPortWindowPort(myWindow);

    /*

    **  Set up menus last, since the menu drawing can then use 

    **  the palette we have for our window. 

    **  Makes the Apple look better, in particular.

    */

    SetUpMenus();

    /*

    **  Main Event Loop

    */

    do {

        //SystemTask(); //er, what does(did) this do?

        if (GetNextEvent(everyEvent, &myEvent)) {

            switch (myEvent.what) {             /* case on event type */

                case mouseDown:

                    switch (FindWindow(myEvent.where, &whichWindow)) {

                        case inSysWindow:       /* desk accessory window: call Desk Manager to handle it */

                            //SystemClick(&myEvent, whichWindow);

                            break;

                        case inMenuBar:         /* Menu bar: learn which command, then execute it. */

                            DoCommand(MenuSelect(myEvent.where));

                            break;

                        case inDrag:            /* title bar: call Window Manager to drag */

                            DragWindow(whichWindow, myEvent.where, &dragRect);

                            break;

                        case inContent:         /* body of application window: */

                            if (whichWindow != FrontWindow())

                                SelectWindow(whichWindow); /* and make it active if not */

                            break;

                    }

                    break;

                case updateEvt:                 /* Update the eyes in window. */

                    if ((WindowPtr) myEvent.message == myWindow) {

                        BeginUpdate((WindowPtr) myEvent.message);

                        DrawEyes();

                        EndUpdate((WindowPtr) myEvent.message);

                    }

                    break;

                case keyDown:

                case autoKey:                   /* key pressed once or held down to repeat */

                    if (myWindow == FrontWindow()) {

                        theChar = (myEvent.message & charCodeMask); /* get the char */

                        /* 

                        **  If Command key down, do it as a Menu Command.

                        */

                        if (myEvent.modifiers & cmdKey)

                            DoCommand(MenuKey(theChar));

                    }

                    break;

            }

        }

        /*  

        **  If we have menu item checked, go ahead and animate colors.

        */

        if (tubeCheck) ShiftyColors();

    } while (!doneFlag);

    /*

    **  clean up after palette manager, 

    **  so it can chuck the palette in use.

    */

    //DisposeWindow (myWindow);

}

/*

**  This routine will update the window when required by update events. It

**  will draw two circular dudes that are indexed in colors through the colors

**  we are using. 0 and 1 are skipped, since those are white and black in the

**  palette.

*/

void DrawEyes()

{

    Rect    tempRect;

    int     i;

    SetRect(&tempRect, numColors, numColors, numColors, numColors);

    for (i = 2; i <= totalColors; i++) {

        PmForeColor(i);

        FrameOval (&tempRect);

        InsetRect (&tempRect, -1, -1);

    }

    SetRect(&tempRect, numColors*3, numColors, numColors*3, numColors);

    for (i = totalColors; i >= 2; i--) {

        PmForeColor(i);

        FrameOval (&tempRect);

        InsetRect (&tempRect, -1, -1);

    }

}

/*

**  Read menu descriptions from resource file into memory 

**  and store handles in myMenus array.

**  Insert into MenuBar and draw.

*/

void SetUpMenus()

{

    int i;

    myMenus[appleM] = GetMenu(appleID);         /* read Apple menu from resource file */

    AppendResMenu(myMenus[appleM], 'DRVR');     /* add desk accessory names to Apple menu */

    myMenus[fileM] = GetMenu(fileID);           /* read file menu from resource file */

    myMenus[editM] = GetMenu(editID);           /* read edit menu from resource file */

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

        InsertMenu(myMenus[i], 0);              /* install menus in menu bar */

    DrawMenuBar();                              /* and draw menu bar */

}

/*

**  Use the Palette currently attached to the main window to animate the colors 

**  in the circular eye shapes.  This will rotate them around to give the flowing 

**  tube effect. We make the palette into a color table so we can move entries 

**  around. We have to skip the first two entries since those are black and white. 

**  (entries 0 and 1)

*/

void ShiftyColors()

{

    PaletteHandle   currPalette;

    CTabHandle      destCTab;

    ColorSpec       lastCSpec;

    //SetPort (myWindow);

    SetPortWindowPort(myWindow);

    currPalette = GetPalette(myWindow);

    destCTab = (CTabHandle) NewHandle(sizeof(ColorTable)+(totalColors*sizeof(ColorSpec)));

    if (destCTab == nil)  return;

    Palette2CTab(currPalette, destCTab);

    /*

    **  Move the colors around in the color table, skipping 0 and 1, and moving

    **  all the elements down by one, and copying the element at 2 back to the 

    **  end of the table. The effect is to rotate the colors in the table.

    */

    lastCSpec = (*destCTab)->ctTable[2];                        /* pull first one off. */

    BlockMove (&(*destCTab)->ctTable[3], 

               &(*destCTab)->ctTable[2], 

               (numColors) * sizeof(ColorSpec) );               /* copy all one entry down. */

    (*destCTab)->ctTable[totalColors-1] = lastCSpec;            /* put last color back on front. */

    AnimatePalette(myWindow, destCTab, 2, 2, numColors);

    DisposeHandle ((Handle) destCTab);

}

/*  

**  Display the dialog box in response to the 'About TubeTest' menu item

*/

void ShowAboutMeDialog()

{

    DialogPtr   theDialog;

    short       itemHit;

    theDialog = GetNewDialog(aboutMeDLOG, nil, (WindowPtr) -1);

    ModalDialog(nil, &itemHit);

    DisposeDialog(theDialog);

}

/*

**  Execute menu command specified by mResult,

**  the result of MenuSelect

*/

void DoCommand(long int mResult)

{

    short   theItem,                            /* menu item number from mResult low-order word */

            theMenu;                            /* menu number from mResult high-order word */

    //Str255    name;                               /* desk accessory name */

    //int       temp;

    //Boolean   dummy;

    theItem = LoWord(mResult);                  /* call Toolbox Utility routines to */

    theMenu = HiWord(mResult);                  /* set menu item number and menu */

    switch (theMenu) {                          /* switch on menu ID */

        case appleID:

            if (theItem == aboutMeCommand)

                ShowAboutMeDialog();

            else {

                    /*GetMenuItemText(myMenus[appleM], theItem, name);

                    temp = OpenDeskAcc(name);*/

                    //SetPort(myWindow);

                    SetPortWindowPort(myWindow);

            }

            break;

        case fileID:

            if (theItem == quitItem)

                doneFlag = true;

            else if (theItem == tubularItem) {

                    tubeCheck = !tubeCheck;

                    //CheckItem(myMenus[fileM], tubularItem, tubeCheck);

                    CheckMenuItem(myMenus[fileM], tubularItem, tubeCheck);

            }

            break;

        case editID:

            //dummy = SystemEdit(theItem - 1);  /* Pass the command on to the Desk Manager. */

            break;

    }

    HiliteMenu(0);                              /* Unhighlight menu title */

                                                /* (highlighted by MenuSelect) */

}