/*

    File:       Preferences.c

    Description:Code that displays the preferences dialog and reads and writes the preferences

                file.

    Author:     MC

    Copyright:  © Copyright 1999-2000 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):

*/

#define TARGET_API_MAC_CARBON 1

#include <Resources.h>

#include <Folders.h>

#include <TextUtils.h>

#include <Errors.h>

#include <LowMem.h>

#include <Controls.h>

#include <fp.h>

#include "Preferences.h"

#include "WindowCode.h"

#include "Structs.h"

#include "Defines.h"

/*

    Preferences file is a 'pref' resource

    first long (byte 0-3) is delay during slide show in tics

    next byte (byte 4) is flag for if to display files in reverse order

      if 0 then first file in 'odoc' event is opened first (so it's at the bottom of the window list)

      if 1 then last file in 'odoc' event is opened first (so it's at the bottom of the window list)

*/

extern  PreferencesHandle           gPreferences;

extern  Boolean                     gPrefsChanged;

static OSErr    FindPrefsFile (FSSpec * theSpec) {

    OSErr               err;

    long                foundDirID;

    short               foundVRefNum;

    Str255              prefsFileName;

    err = FindFolder (kOnSystemDisk, kPreferencesFolderType, kCreateFolder, &foundVRefNum, &foundDirID);

    if (err == noErr) {

        GetIndString (prefsFileName, kPrefsFileNameResID, kPrefsFileNameIndex);

        err = ResError ();

        if (prefsFileName == nil) {

            err = resNotFound;

        }

    }

    if (err == noErr) {

        err = FSMakeFSSpec (foundVRefNum, foundDirID, prefsFileName, theSpec);

    }

    return err;

}

OSErr   CreatePrefs (void) {

    FSSpec              theSpec;

    OSErr               err;

    FInfo               finderInfo;

    err = FindPrefsFile (&theSpec);

    if (err == fnfErr) {

        FSpCreateResFile (&theSpec, kCreatorType, kPrefResType, smSystemScript);

        err = ResError ();

    } else {

        FSpGetFInfo (&theSpec, &finderInfo);

        if (finderInfo.fdCreator == kCreatorType) {

            err = FSpDelete (&theSpec);

            if (err == noErr) {

                FSpCreateResFile (&theSpec, kCreatorType, kPrefResType, smSystemScript);

                err = ResError ();

            }

        }

    }

    return err;

}

OSErr   InitPrefs (void) {

    OSErr               err;

    gPreferences = (PreferencesHandle)NewHandle (sizeof (Preferences));

    err = MemError ();

    if (err == noErr) {

        (**gPreferences).slideShowPause = 120;  // two seconds in ticks

        (**gPreferences).quality = codecNormalQuality;

        (**gPreferences).openInReverseOrder = false;

        (**gPreferences).scanSubFolders = false;

        (**gPreferences).randomSlideShow = false;

    }

    return err;

}

OSErr   ReadPrefs (void) {

    FSSpec              theSpec;

    OSErr               err;

    short               resRef;

    err = FindPrefsFile (&theSpec);

    if (err == noErr) {

        resRef = FSpOpenResFile (&theSpec, fsRdPerm);

        if (resRef == -1) {

            err = ResError ();

        }

    } else {

        resRef = -1;

    }

    if (err == noErr) {

        gPreferences = (PreferencesHandle)Get1Resource (kPrefResType, kPrefResID);

        err = ResError ();

        if (gPreferences == nil) {

            err = resNotFound;

        }

    }

    if (err == noErr) {

        DetachResource ((Handle)gPreferences);

    }

    if (resRef != -1) {

        CloseResFile (resRef);

    }

    return err;

}

OSErr   WritePrefs (void) {

    Handle              temp;

    FSSpec              theSpec;

    OSErr               err;

    short               resRef;

    err = FindPrefsFile (&theSpec);

    if (err == noErr) {

        resRef = FSpOpenResFile (&theSpec, fsRdWrPerm);

        if (resRef == -1) {

            err = ResError ();

        }

    }

    if (err == noErr) {

        temp = Get1Resource (kPrefResType, kPrefResID);

        err = ResError ();

        if (temp == nil) {

            err = resNotFound;

        }

    }

    if (err == noErr) {

        RemoveResource (temp);

    } else if (err == resNotFound) {

        err = noErr;

    }

    if (err == noErr) {

        AddResource ((Handle)gPreferences, kPrefResType, kPrefResID, nil);

    }

    if (resRef != -1) {

        CloseResFile (resRef);

    }

    DisposeHandle (temp);

    return err;

}

static pascal Boolean ModalDialogFilter (DialogPtr theDialog, EventRecord *theEvent, short *itemHit) {

    Boolean                     result;

    OSErr                       err;

    ModalFilterUPP              standardProc;

    result = false;

    if ((theEvent->what == updateEvt) && (DialogPtr)theEvent->message != theDialog) {

        err = DispatchWindowUpdate ((WindowPtr)theEvent->message);

    } else if ((theEvent->what == activateEvt) && (DialogPtr)theEvent->message != theDialog) {

        DoActivate (theEvent, true);

    } else {

        err = GetStdFilterProc (&standardProc);

        if (err == noErr) {

            result = (Boolean)CallModalFilterProc (standardProc, theDialog, theEvent, itemHit);

        }

    }

    return result;

}

static void SetRadioGroup (DialogPtr theDialog, short firstRadio, short lastRadio, short onRadio) {

    short                       i;

    DialogItemType                      itemType;

    ControlHandle               item;

    Rect                        box;

    for (i = firstRadio; i <= lastRadio; i++) {

        if (i != onRadio) {

            GetDialogItem (theDialog, i, &itemType, (Handle*)&item, &box);

            SetControlValue (item, 0);

        } else {

            GetDialogItem (theDialog, i, &itemType, (Handle*)&item, &box);

            SetControlValue (item, 1);

        }

    }

}

OSErr   DoPreferencesDialog (void) {

    OSErr                       err;

    DialogPtr                   prefsDialog;

    short                       itemHit;

    DialogItemType                      itemType;

    ControlHandle               item;

    Rect                        box;

    Str255                      pauseAsString;

    Boolean                     done;

    double                      pauseTime;

    CodecQ                      origQuality;

    WindowInfoHandle            winInfo;

    ModalFilterUPP              filterProcUPP;

    Handle                      itlHandle;

    unsigned char*              inString;

    NumFormatString             outString;

    NumberParts                 numParts;

    FormatResultType            formatStatus;

    long                        offset,

                                length;

    extended80                  x80;

    Rect                        winRect;

    done = false;

    inString = "\p###,###.#######";

    err = noErr;

    prefsDialog = GetNewDialog (kPrefsDialogResID, nil, (WindowPtr)-1L);

    if (prefsDialog == nil) {

        err = resNotFound;

    }

    if (err == noErr) {

        err = SetDialogDefaultItem (prefsDialog, dOKButton);

    }

    if (err == noErr) {

        err = SetDialogCancelItem (prefsDialog, dCancelButton);

    }

    if (err == noErr) {

        err = SetDialogTracksCursor (prefsDialog, true);

    }

    if (err == noErr) {

        GetDialogItem (prefsDialog, dReverseOrderPref, &itemType, (Handle*)&item, &box);

        SetControlValue (item, (**gPreferences).openInReverseOrder);

        GetDialogItem (prefsDialog, dScanSubFolders, &itemType, (Handle*)&item, &box);

        SetControlValue (item, (**gPreferences).scanSubFolders);

        GetDialogItem (prefsDialog, dRandomSlideShow, &itemType, (Handle*)&item, &box);

        SetControlValue (item, (**gPreferences).randomSlideShow);

        origQuality = (**gPreferences).quality;

        switch (origQuality) {

            case codecMinQuality:

                GetDialogItem (prefsDialog, dMinimumQuality, &itemType, (Handle*)&item, &box);

                SetControlValue (item, 1);

                break;

            case codecLowQuality:

                GetDialogItem (prefsDialog, dLowQuality, &itemType, (Handle*)&item, &box);

                SetControlValue (item, 1);

                break;

            case codecNormalQuality:

                GetDialogItem (prefsDialog, dNormalQuality, &itemType, (Handle*)&item, &box);

                SetControlValue (item, 1);

                break;

            case codecHighQuality:

                GetDialogItem (prefsDialog, dHighQuality, &itemType, (Handle*)&item, &box);

                SetControlValue (item, 1);

                break;

            case codecMaxQuality:

                GetDialogItem (prefsDialog, dMaxQuality, &itemType, (Handle*)&item, &box);

                SetControlValue (item, 1);

                break;

        }

        GetDialogItem (prefsDialog, dSlideShowTime, &itemType, (Handle*)&item, &box);

        GetIntlResourceTable (smCurrentScript, smNumberPartsTable, &itlHandle, &offset, &length);

        if (itlHandle != nil) {

            pauseTime = (**gPreferences).slideShowPause / 60.0;

            dtox80 (&pauseTime, &x80);

            BlockMoveData (((char*)*itlHandle) + offset, &numParts, length);

            formatStatus = (FormatResultType)StringToFormatRec (inString, &numParts, &outString);

            if (formatStatus == fFormatOK) {

                formatStatus = (FormatResultType)ExtendedToString (&x80, &outString, &numParts, pauseAsString);

            }

            ReleaseResource (itlHandle);

        }

        SetDialogItemText ((Handle)item, pauseAsString);

        SelectDialogItemText (prefsDialog, dSlideShowTime, 0, 32767);

        ShowWindow (GetDialogWindow(prefsDialog));

        SetPort (GetWindowPort(GetDialogWindow(prefsDialog)));

    }

    filterProcUPP = NewModalFilterProc (ModalDialogFilter);

    if (err == noErr) {

        do {

            ModalDialog (filterProcUPP, &itemHit);

            switch (itemHit) {

                case dOKButton:

                    GetDialogItem (prefsDialog, dSlideShowTime, &itemType, (Handle*)&item, &box);

                    GetDialogItemText ((Handle)item, pauseAsString);

                    GetIntlResourceTable (smCurrentScript, smNumberPartsTable, &itlHandle, &offset, &length);

                    if (itlHandle != nil) {

                        BlockMoveData (((char*)*itlHandle) + offset, &numParts, length);

                        formatStatus = (FormatResultType)StringToFormatRec (inString, &numParts, &outString);

                        if (formatStatus == fFormatOK) {

                            formatStatus = (FormatResultType)StringToExtended (pauseAsString, &outString, &numParts, &x80);

                        }

                        ReleaseResource (itlHandle);

                        pauseTime = x80tod (&x80);

                    } else {

                        pauseTime = 3.0;

                    }

                    (**gPreferences).slideShowPause = (unsigned long)(pauseTime * 60.0);

                    GetDialogItem (prefsDialog, dReverseOrderPref, &itemType, (Handle*)&item, &box);

                    (**gPreferences).openInReverseOrder = (Boolean)GetControlValue (item);

                    GetDialogItem (prefsDialog, dScanSubFolders, &itemType, (Handle*)&item, &box);

                    (**gPreferences).scanSubFolders = (Boolean)GetControlValue (item);

                    GetDialogItem (prefsDialog, dRandomSlideShow, &itemType, (Handle*)&item, &box);

                    (**gPreferences).randomSlideShow = (Boolean)GetControlValue (item);

                    GetDialogItem (prefsDialog, dMaxQuality, &itemType, (Handle*)&item, &box);

                    if (GetControlValue (item))

                        (**gPreferences).quality = codecMaxQuality;

                    GetDialogItem (prefsDialog, dHighQuality, &itemType, (Handle*)&item, &box);

                    if (GetControlValue (item))

                        (**gPreferences).quality = codecHighQuality;

                    GetDialogItem (prefsDialog, dNormalQuality, &itemType, (Handle*)&item, &box);

                    if (GetControlValue (item))

                        (**gPreferences).quality = codecNormalQuality;

                    GetDialogItem (prefsDialog, dLowQuality, &itemType, (Handle*)&item, &box);

                    if (GetControlValue (item))

                        (**gPreferences).quality = codecLowQuality;

                    GetDialogItem (prefsDialog, dMinimumQuality, &itemType, (Handle*)&item, &box);

                    if (GetControlValue (item))

                        (**gPreferences).quality = codecMinQuality;

                    gPrefsChanged = true;

                case dCancelButton:

                    done = true;

                    break;

                case dMaxQuality:

                case dHighQuality:

                case dNormalQuality:

                case dLowQuality:

                case dMinimumQuality:

                    SetRadioGroup (prefsDialog, dMaxQuality, dMinimumQuality, itemHit);

                    break;

                default:

                    GetDialogItem (prefsDialog, itemHit, &itemType, (Handle*)&item, &box);

                    if (itemType == chkCtrl + ctrlItem) {

                        SetControlValue (item, !GetControlValue (item));

                    }

            }

        } while (done == false);

        if (origQuality != (**gPreferences).quality) {

            // The user changed the quality settings so redraw all the windows.

            WindowPtr       theWindow;

            theWindow = FrontWindow ();

            while (theWindow != nil) {

                winInfo = (WindowInfoHandle)GetWRefCon (theWindow);

                if (winInfo != nil && (**winInfo).sig == kMySig && (**winInfo).winType == kGraphPicWinType) {

                    GetWindowPortBounds (theWindow, &winRect);

                    InvalWindowRect (theWindow, &winRect);

                }

                theWindow = GetNextWindow (theWindow);

            }

        }

        DisposeDialog (prefsDialog);

    }

    DisposeModalFilterUPP (filterProcUPP);

    return err;

}