/*

File: PrefsDialog.c

Abstract: Handles all Dialog related functions for the Demo.

Version: 1.0

Change History:

    <1.0>       first release version

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*/

#include "ExamplePrefs.h"

#include "IconListUtilities.h"

#include "MissingConstants.h"   // for the virtual key codes used in dialogFilter

#include "PrefsDialog.h"

#include <ControlDefinitions.h>

#include <Controls.h>

#include <MacWindows.h>

#include <OSUtils.h>

#include <Processes.h>

#include <Quickdraw.h>

#include <ToolUtils.h>

static short gPanelNumber;

static Boolean dialogFilter(EventRecord *event, DialogRef *theDialog, 

                            DialogItemIndex *itemHit);

static void handleDialogItemHit(DialogRef prefsDialog, DialogItemIndex itemHit);

static void changePanel(DialogRef dialog, short newPanel);

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

void  OpenPrefsDialog(void)

{

    DialogRef dialog;

    WindowRef dialogWindow;

    ControlRef control;

    ListHandle iconList;

    Cell theCell;

    dialog = GetNewDialog(rPrefsDialogPlatinum, NULL, kFirstWindowOfClass);

    if (dialog == NULL)

        ExitToShell();

    SetPortDialogPort(dialog);

    dialogWindow = GetDialogWindow(dialog);

    SetDialogDefaultItem(dialog, kStdOkItemIndex);

    SetDialogCancelItem(dialog, kStdCancelItemIndex);

    GetDialogItemAsControl(dialog, iIconList, &control);

    GetControlData(control, kControlEntireControl, kControlListBoxListHandleTag, 

                    sizeof(ListHandle), &iconList, NULL);

    AddRowsAndDataToIconList(iconList, rIconListIconBaseID);

    (*iconList)->selFlags = lOnlyOne;

    SetPt(&theCell, 0, 0);

    LSetSelect(true, theCell, iconList);

    SetKeyboardFocus(dialogWindow, control, kControlFocusNextPart);

    gPanelNumber = 0;

    DisableMenuItem(GetMenuRef(mDemonstration), iPrefsDialog);

    ShowWindow(dialogWindow);

} // OpenPrefsDialog

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

void ClosePrefsDialog(DialogRef prefsDialog)

{

    ControlRef listBoxControl;

    ListHandle iconList;

    HideWindow(GetDialogWindow(prefsDialog));

    GetDialogItemAsControl(prefsDialog, iIconList, &listBoxControl);

    GetControlData(listBoxControl, kControlEntireControl, kControlListBoxListHandleTag, 

                    sizeof(ListHandle), &iconList, NULL);

    ReleaseIconListIcons(iconList);

    DisposeDialog(prefsDialog);

    EnableMenuItem(GetMenuRef(mDemonstration), iPrefsDialog);

}

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

void RedrawPrefsDialogList(DialogRef prefsDialog)

{

    ControlRef listBoxControl;

    GetDialogItemAsControl(prefsDialog, iIconList, &listBoxControl);

    Draw1Control(listBoxControl);   // redraw the list box control

}

#pragma mark -

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

void HandleDialogEvents(EventRecord *event)

{

    Boolean eventHandled;

    DialogRef prefsDialog;

    DialogItemIndex itemHit;

    eventHandled = dialogFilter(event, &prefsDialog, &itemHit);     // we call this 

        // before and not after DialogSelect to filter out key presses that should simulate 

        // clicks on the OK or Cancel buttons and to respond to menu key equivalents

    if (!eventHandled)  // handle most other events

        eventHandled = DialogSelect(event, &prefsDialog, &itemHit);

    if (eventHandled)

    {

        handleDialogItemHit(prefsDialog, itemHit);

    }

}

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

static Boolean dialogFilter(EventRecord *event, DialogRef *theDialog, 

                            DialogItemIndex *itemHit)

{

        /* See the comments for HandleKeyDown in PrefsWindow.c about why we're using 

           virtual key codes instead of character codes. */

    Boolean eventHandled = false;

    char charCode, keyCode;

    switch (event->what)

    {

        case keyDown:   // handle key presses not handled by DialogSelect

        case autoKey:

            *theDialog = GetDialogFromWindow(FrontNonFloatingWindow());

            SetPortDialogPort(*theDialog);

            charCode = event->message & charCodeMask;

            keyCode = (event->message & keyCodeMask) >> 8;

            if ((event->modifiers & cmdKey) != 0)       // check to see if any menu commands 

            {                   // were selected - this isn't necessarily handling the event

                UInt32 menuChoice;

                OSErr error;

                MenuCommand commandID;

                menuChoice = MenuEvent(event);

                error = GetMenuItemCommandID(GetMenuRef(HiWord(menuChoice)), 

                                                LoWord(menuChoice), &commandID);

                if (error == noErr)

                {

                    if (commandID == 0)     // if the menu item chosen does not have a 

                        commandID = (MenuCommand)menuChoice;    // command ID 

                    HandleMenuChoice(commandID);                // (but they all should)

                }

            }

            if ( (keyCode == kEnterKeyCode) || (keyCode == kReturnKeyCode) || 

                (keyCode == kEscapeKeyCode) || 

                ( ((event->modifiers & cmdKey) != 0) && (charCode == '.') ) )

            {

                ControlRef button;

                unsigned long finalTicks;

                if ( (keyCode == kEnterKeyCode) || (keyCode == kReturnKeyCode) )

                {

                    GetDialogItemAsControl(*theDialog, kStdOkItemIndex, &button);

                    *itemHit = kStdOkItemIndex;

                }

                else

                {

                    GetDialogItemAsControl(*theDialog, kStdCancelItemIndex, &button);

                    *itemHit = kStdCancelItemIndex;

                }

                HiliteControl(button, kControlButtonPart);

                Delay(8, &finalTicks);

                HiliteControl(button, kControlNoPart);

                eventHandled = true;

            }

    }

    return eventHandled;

}

#pragma mark -

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

static void handleDialogItemHit(DialogRef prefsDialog, DialogItemIndex itemHit)

{

    if (itemHit == iIconList)

    {

        ControlRef listBoxControl;

        ListHandle iconList;

        Cell theCell;

        GetDialogItemAsControl(prefsDialog, iIconList, &listBoxControl);

        GetControlData(listBoxControl, kControlEntireControl, 

                        kControlListBoxListHandleTag, sizeof(ListHandle), 

                        &iconList, NULL);

        SetPt(&theCell, 0, 0);

        LGetSelect(true, &theCell, iconList);

        if ((theCell.v) != gPanelNumber)

            changePanel(prefsDialog, theCell.v);

    }

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

        ClosePrefsDialog(prefsDialog);

}

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

static void changePanel(DialogRef dialog, short newPanel)

{

    ControlRef userPane;

    static const SInt16 panelIndexes[kNumberOfRows] = {

                                                        iUserPane1,

                                                        iUserPane2,

                                                        iUserPane3,

                                                        iUserPane4,

                                                        iUserPane5,

                                                        iUserPane6,

                                                        iUserPane7,

                                                        iUserPane8,

                                                        iUserPane9,

                                                        iUserPane10

                                                      };

    GetDialogItemAsControl(dialog, panelIndexes[gPanelNumber], &userPane);

    SetControlVisibility(userPane, false, false);   // hide the currently active panel

    GetDialogItemAsControl(dialog, panelIndexes[newPanel], &userPane);

    SetControlVisibility(userPane, true, true);     // and show the newly selected panel

    gPanelNumber = newPanel;

}