/*

   File:        SimpleList.cp

   Description: A simple illustration of a ListBox Control implementation and its pitfall

   Author:      ES

   Copyright:   © Copyright 2002 Apple Computer, Inc. All rights reserved.

   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):

                First release: Jun 21, 2002 

*/

#ifdef __MWERKS__

#include <Carbon.h>

#else

#include <Carbon/Carbon.h>

#endif

// Preferred way is to use CarbonEvents (much shorter listing)

// But the old way is fine too

#define USECARBONEVENTS 1

Boolean gStop;

WindowRef gWindow;

ControlRef gQuit;

ControlRef gList;

void CreateTestListWindow(void);

pascal OSStatus gQuitHandler(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData);

#if ! USECARBONEVENTS

void MainEventLoop();

#endif

int main(void)

    {

    FlushEvents(everyEvent,0);

    InitCursor();

    gStop = false;

    CreateTestListWindow();

#if USECARBONEVENTS

    RunApplicationEventLoop();

#else

    MainEventLoop();

#endif

    }

pascal OSStatus gQuitHandler(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData)

    {

    ExitToShell();

    }

void CreateTestListWindow(void)

    {

    // Creating the window

    Rect bounds = {50, 50, 550, 550};

    WindowAttributes theAttributes = kWindowNoAttributes;

#if USECARBONEVENTS

    theAttributes |= kWindowStandardHandlerAttribute;

#endif

    OSStatus theStatus = CreateNewWindow(kDocumentWindowClass, theAttributes, &bounds, &gWindow);

    if ((theStatus != noErr) || (gWindow == NULL)) ExitToShell();

    ControlRef rootControl;

    // the following line is absolutely necessary to prevent crashes or disfunctions on Mac OS 9

    // when you click in either of the scroll bars of the list box control.

    CreateRootControl(gWindow, &rootControl);

    // Adding a Quit button

    Rect boundsQuit = {20, 20, 44, 120};

    theStatus = CreatePushButtonControl(gWindow, &boundsQuit, CFSTR("Quit"), &gQuit);

    if ((theStatus != noErr) || (gQuit == NULL)) ExitToShell();

#if USECARBONEVENTS

    EventTypeSpec eventTypeList[] = {   {kEventClassControl, kEventControlHit}  };

    theStatus = InstallEventHandler(GetControlEventTarget(gQuit), NewEventHandlerUPP(gQuitHandler), 1, eventTypeList, NULL, NULL);

#endif

    // Adding our LitsBox Control

    Rect boundsList = {60, 20, 480, 480};

    ListDefSpec listDef = {kListDefStandardTextType};

    theStatus = CreateListBoxControl(gWindow, &boundsList, false, 30, 30, true, true, 16, 50, true, &listDef, &gList);

    if ((theStatus != noErr) || (gList == NULL)) ExitToShell();

    // Populating our List

    ListHandle theList;

    theStatus = GetControlData(gList, kControlNoPart, kControlListBoxListHandleTag, sizeof(ListHandle), (Ptr)&theList, NULL);

    if (theStatus != noErr) ExitToShell();

    long i, j, theNum = 1;

    Str255 theString;

    Cell whichCell;

    for(i = 0; i < 30; i++)

        {

        for(j = 0; j < 30; j++)

            {

            NumToString(theNum, theString);

            theNum++;

            whichCell.h = i;

            whichCell.v = j;

            LSetCell(&theString[1], theString[0], whichCell, theList);

            } 

        }

    ShowWindow(gWindow);

    }

#if ! USECARBONEVENTS

void MainEventLoop()

    {

    EventRecord theEvent;

    WindowPtr theWind;

    while (!gStop)

        {

        if (WaitNextEvent(everyEvent, &theEvent, 4, 0L))

            switch (theEvent.what)

                {

                case mouseDown:

                    switch (FindWindow(theEvent.where, &theWind))

                        {

                        case inContent:

                            if (theWind != FrontNonFloatingWindow())

                                SelectWindow(theWind);

                            else if (gWindow == theWind)

                                {

                                GrafPtr savePort;

                                GetPort(&savePort);

                                SetPortWindowPort(gWindow);

                                Point thePoint = theEvent.where;

                                GlobalToLocal(&thePoint);

                                SInt16 partCode;

                                ControlRef theControl = FindControlUnderMouse(thePoint, theWind, &partCode);

                                if (theControl != NULL)

                                    {

                                    partCode = HandleControlClick(theControl, thePoint, theEvent.modifiers, (ControlActionUPP)0L);

                                    if (partCode != 0)

                                        {

                                        if (theControl == gQuit)

                                            gStop = true;

                                        }

                                    }

                                SetPort(savePort);

                                }

                            break;

                        }

                    break;

                case updateEvt:

                    if (gWindow == (WindowRef)theEvent.message)

                        {

                        BeginUpdate(gWindow);

                        DrawControls(gWindow);

                        EndUpdate(gWindow);

                        }

                    break;

                }

        }

    }

#endif