/*

File: PrefsDialog.c

Abstract: Handles all Dialog related functions for the Demo.

Version: 5.0

Change History:

    <5.0>   converted everything from a List Box control to a Data 

            Browser control

            removed changePanel and listBoxControlEventHandler

            renamed RedrawPrefsDialogList to 

            RedrawPrefsDialogDataBrowser which doesn't actually draw 

            the data browser but rather just invalidates its content 

            rectangle

    <4.0>   removed all Classic code

            removed HandleDialogEvents and dialogFilter

            adjusted the RunningInMacOSX dependent stuff

    <3.0>   converted the Carbon version to use Carbon Events and 

            standard handlers

            added dialogEventHandler and listBoxControlEventHandler 

            to support Carbon Events

            the Carbon Event model doesn't mix all that well with 

            the Dialog Manager, as a workaround we gave the controls 

            Control IDs that match their Dialog Item IDs

    <2.0>   Carbonized

            we have to register our list definition procedure in 

            Carbon because code resources are unsupported

            also we have to flush the QuickDraw port after our calls 

            to HiliteControl

    <1.0>   first release version

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*/

#include "ExamplePrefs.h"

#include "Help.h"

#include "IconDBUtilities.h"

#include "PrefsDialog.h"

static EventHandlerUPP gDialogEventHandler;

static pascal OSStatus dialogEventHandler(EventHandlerCallRef nextHandler, EventRef event, 

                                            void *prefsDialog);

static void handleDialogItemHit(DialogRef prefsDialog, DialogItemIndex itemHit);

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

void  OpenPrefsDialog(void)

{

    DialogRef dialog;

    WindowRef dialogWindow;

    EventTypeSpec dialogEvents[] = {

                                    {kEventClassControl, kEventControlHit}

                                   };

    ControlID controlID = {kAppSignature, 0};

    ControlRef control, userPanes[10];

    short iconDBBottom;

    Rect iconDBRect;

    dialog = GetNewDialog(rPrefsDialog, NULL, kFirstWindowOfClass);

    if (dialog == NULL)

        ExitToShell();

    SetPortDialogPort(dialog);

    dialogWindow = GetDialogWindow(dialog);

                                                                // install window handlers

    ChangeWindowAttributes(dialogWindow, kWindowStandardHandlerAttribute, kWindowNoAttributes);

    gDialogEventHandler = NewEventHandlerUPP(dialogEventHandler);

    InstallWindowEventHandler(dialogWindow, gDialogEventHandler, 

                                GetEventTypeCount(dialogEvents), dialogEvents, (void *)dialog, 

                                NULL);

    GetDialogItemAsControl(dialog, kStdOkItemIndex, &control);      // set control IDs to 

    controlID.id = kStdOkItemIndex;                                 // match dialog item 

    SetControlID(control, &controlID);                              // indices which are 

    SetWindowDefaultButton(dialogWindow, control);                  // not tracked by any 

                                                                    // standard handlers

    GetDialogItemAsControl(dialog, kStdCancelItemIndex, &control);  // also set the default 

    controlID.id = kStdCancelItemIndex;             // and cancel buttons (because Mac OS 8/9 

    SetControlID(control, &controlID);              // under CarbonLib doesn't respect the 

    SetWindowCancelButton(dialogWindow, control);   // dialog's default and cancel buttons)

                                                                // get the bottom-most 

    iconDBBottom = kPrefsDialogHeight - kWindowEdgeSpacing;     // coordinate we can use

    iconDBBottom -= (kPrefsDialogHeight - kWindowEdgeSpacing - kDataBrowserInset - 

                        (kWindowEdgeSpacing + kDataBrowserInset) ) % 

                        kRowHeight; // then subtract out the partial cell height that would 

                                    // be drawn on the bottom so that it's not actually drawn

    SetRect(&iconDBRect, kWindowEdgeSpacing , kWindowEdgeSpacing, 

            kWindowEdgeSpacing + kDataBrowserInset + kColumnWidth + kDataBrowserInset + 

            kScrollBarWidth, iconDBBottom);

    GetDialogItemAsControl(dialog, iUserPane1 - 1, &userPanes[0]);  // because the data browser 

    GetDialogItemAsControl(dialog, iUserPane2 - 1, &userPanes[1]);  // hasn't been inserted 

    GetDialogItemAsControl(dialog, iUserPane3 - 1, &userPanes[2]);  // yet, the user panes are 

    GetDialogItemAsControl(dialog, iUserPane4 - 1, &userPanes[3]);  // one item number lower 

    GetDialogItemAsControl(dialog, iUserPane5 - 1, &userPanes[4]);  // than their final values

    GetDialogItemAsControl(dialog, iUserPane6 - 1, &userPanes[5]);

    GetDialogItemAsControl(dialog, iUserPane7 - 1, &userPanes[6]);

    GetDialogItemAsControl(dialog, iUserPane8 - 1, &userPanes[7]);

    GetDialogItemAsControl(dialog, iUserPane9 - 1, &userPanes[8]);

    GetDialogItemAsControl(dialog, iUserPane10 - 1, &userPanes[9]);

    control = CreateIconDataBrowser(dialogWindow, &iconDBRect, userPanes);

    InsertDialogItem(dialog, kStdCancelItemIndex, kControlDialogItem, (Handle)control, 

                        &iconDBRect);

    SetPrefsDialogHelpTags(dialog);

    DisableMenuItem(GetMenuRef(mDemonstration), iPrefsDialog);

    ShowWindow(dialogWindow);

} // OpenPrefsDialog

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

void ClosePrefsDialog(DialogRef prefsDialog)

{

    ControlRef iconDataBrowser;

    HideWindow(GetDialogWindow(prefsDialog));

    GetDialogItemAsControl(prefsDialog, iIconDataBrowser, &iconDataBrowser);

    ReleaseIconDataBrowserItemData(iconDataBrowser);

    DisposeEventHandlerUPP(gDialogEventHandler);

    DisposeDialog(prefsDialog);

    EnableMenuItem(GetMenuRef(mDemonstration), iPrefsDialog);

}

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

void RedrawPrefsDialogDataBrowser(DialogRef prefsDialog)

{

    ControlRef iconDataBrowser;

    Rect iconDBRect;

    GetDialogItemAsControl(prefsDialog, iIconDataBrowser, &iconDataBrowser);

    GetControlBounds(iconDataBrowser, &iconDBRect);

    iconDBRect.right -= kScrollBarWidth;

    InsetRect(&iconDBRect, kDataBrowserInset, kDataBrowserInset);

    InvalWindowRect(GetDialogWindow(prefsDialog), &iconDBRect);

}

#pragma mark -

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

static pascal OSStatus dialogEventHandler(EventHandlerCallRef nextHandler, EventRef event, 

                                            void *prefsDialog)

{

#pragma unused (nextHandler)

    OSStatus result = eventNotHandledErr;

    UInt32 eventClass, eventKind;

    ControlRef controlHit;

    ControlID controlID;

    eventClass = GetEventClass(event);

    eventKind = GetEventKind(event);

    switch (eventClass)

    {

        case kEventClassControl:

            switch (eventKind)

            {

                case kEventControlHit:

                    GetEventParameter(event, kEventParamDirectObject, typeControlRef, NULL, 

                                        sizeof(ControlRef), NULL, &controlHit);

                    GetControlID(controlHit, &controlID);

                    handleDialogItemHit((DialogRef)prefsDialog, (DialogItemIndex)controlID.id);

                    result = noErr;

                    break;

            }

            break;

    }

    return result;

}

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

static void handleDialogItemHit(DialogRef prefsDialog, DialogItemIndex itemHit)

{

    if ( (itemHit == kStdOkItemIndex) || (itemHit == kStdCancelItemIndex) )

        ClosePrefsDialog(prefsDialog);

}