/* Set start and end times from a given seconds */
static void
SetSaneTimes(UInt32 secs, TimeType *startP, TimeType *endP)
{
DateTimeType date_time;
TimSecondsToDateTime(secs, &date_time);
if (secs % 60)
TimAdjust(&date_time, (60 - (secs % 60)));
startP->hours = date_time.hour;
startP->minutes = date_time.minute;
if (startP->hours != 23) {
endP->hours = startP->hours+1;
endP->minutes = startP->minutes;
} else {
endP->hours = startP->hours;
endP->minutes = 59;
}
}
/***********************************************************************
*
* FUNCTION: SelectTimeZone
*
* DESCRIPTION: Display a form showing a time zone and allow the user
* to select a different time zone. This is the time zone
* dialog as seen in Date & Dime panel
*
* PARAMETERS:
* ioTimeZoneP <-> pointer to time zone to change
* ioLocaleInTimeZoneP <-> Ptr to locale found in time zone.
* titleP -> String title for the dialog.
* showTimes -> True => show current and new times
* anyLocale -> True => ignore ioLocaleInTimeZoneP on entry.
*
* RETURNED:
* true if the OK button was pressed (in which case *ioTimeZoneP and
* *ioCountryInTimeZoneP might be changed).
*
* HISTORY:
* 03/02/00 peter Created by Peter Epstein.
* 04/03/00 peter Allow NULL currentTimeP.
* 04/12/00 peter API changed to get rid of trigger text
* 04/14/00 peter Update current & new time as time passes
* 07/31/00 kwk Use SysTicksPerSecond() routine vs. sysTicksPerSecond macro.
* kwk Re-wrote to use set of resources (name, offset, country),
* scrollbar vs. arrows, etc.
* 08/01/00 kwk Support scroll-to-key. Fixed scrollbar/list sync bugs.
* 08/02/00 kwk New API w/ioCountryInTimeZoneP and anyCountry parameters.
* kwk Call FrmHandleEvent _after_ our event handling code has
* decided that it doesn't want to handle the event, not before.
* 08/03/00 kwk Call LstSetListChoices before calling LstGetVisibleItems,
* as otherwise accessing the time zone picker from the
* Setup app (when <showTimes> is false) gives you a two-
* line high display because LstGetVisibleItems returns 0.
* 08/18/00 kwk Play error sound if user writes letter that doesn't
* match any entries.
* kwk Don't select item if doing scroll-to-view for entry
* that matches the letter the user wrote.
* 08/21/00 kwk Scroll-to-view with text entry now scrolls to the top
* of the list, versus the middle.
* 10/09/00 peter Get rid of scroll bar and let list do the scrolling.
* 11/17/00 CS Change ioCountryInTimeZoneP to ioLocaleInTimeZoneP,
* (and anyCountry to anyLocale, but that doesn't matter),
* since CountryType is only a UInt8, and this may
* change someday.
*
***********************************************************************/
Boolean SelectTimeZone(Int16 *ioTimeZoneP, LmLocaleType* ioLocaleInTimeZoneP,
const Char *titleP, Boolean showTimes, Boolean anyLocale)
{
FormType* originalForm;
FormType* dialog;
EventType event;
Boolean confirmed = false;
Boolean done = false;
Boolean adjustTimes = false;
Boolean foundLocale = false;
MemHandle currentTimeHandle, newTimeHandle;
ListPtr listP;
Int16 oldTimeZone, newTimeZone, testTimeZone;
LmLocaleType newTimeZoneLocale;
Int16 delta, closestDelta, timeZoneIndex, closestIndex;
DateTimeType currentTime, newTime;
TimeZoneEntryType* tzArrayP;
UInt16 numTimeZones;
MemHandle tzNamesH;
if (showTimes)
{
TimSecondsToDateTime(TimGetSeconds(), ¤tTime);
}
oldTimeZone = *ioTimeZoneP;
newTimeZone = oldTimeZone;
newTimeZoneLocale = *ioLocaleInTimeZoneP;
originalForm = FrmGetActiveForm();
dialog = (FormType *) FrmInitForm (TimeZoneDialogForm);
listP = FrmGetObjectPtr (dialog, FrmGetObjectIndex (dialog, TimeZoneDialogTimeZoneList));
if (titleP)
{
FrmSetTitle (dialog, (Char *) titleP);
}
FrmSetActiveForm (dialog);
// We need to call LstSetListChoices before calling LstSetHeight below, as otherwise
// LstGetVisibleItems will return 0.
tzArrayP = PrvCreateTimeZoneArray(&tzNamesH, &numTimeZones);
LstSetListChoices(listP, (Char**)tzArrayP, numTimeZones);
if (showTimes)
{
currentTimeHandle = MemHandleNew(timeStringLength + 1 + dowLongDateStrLength + 1);
ErrFatalDisplayIf (!currentTimeHandle, "Out of memory");
newTimeHandle = MemHandleNew(timeStringLength + 1 + dowLongDateStrLength + 1);
ErrFatalDisplayIf (!newTimeHandle, "Out of memory");
PrvSetTimeField(dialog, TimeZoneDialogCurrentTimeField, currentTimeHandle, ¤tTime, false);
}
else
{
// Hide the current and new time.
FrmHideObject(dialog, FrmGetObjectIndex (dialog, TimeZoneDialogCurrentTimeLabel));
FrmHideObject(dialog, FrmGetObjectIndex (dialog, TimeZoneDialogCurrentTimeField));
FrmHideObject(dialog, FrmGetObjectIndex (dialog, TimeZoneDialogNewTimeLabel));
FrmHideObject(dialog, FrmGetObjectIndex (dialog, TimeZoneDialogNewTimeField));
// Make the list show more items to take up extra the space.
LstSetHeight(listP, LstGetVisibleItems(listP) + extraTimeZonesToShowWhenNoTimes);
}
// Find the time zone in the list closest to the current time zone, and that
// matches <*ioLocaleInTimeZoneP> if <anyLocale> is false.
closestDelta = hoursInMinutes * hoursPerDay; // so big that all others will be smaller
for (timeZoneIndex = 0; timeZoneIndex < numTimeZones; timeZoneIndex++)
{
Boolean checkDelta = anyLocale;
testTimeZone = tzArrayP[timeZoneIndex].tzOffset;
delta = Abs(testTimeZone - oldTimeZone);
if (!anyLocale)
{
if (tzArrayP[timeZoneIndex].tzCountry == ioLocaleInTimeZoneP->country)
{
// If we haven't previously found a matching locale, reset the
// delta so that this entry overrides any previous best entry.
if (!foundLocale)
{
foundLocale = true;
closestDelta = hoursInMinutes * hoursPerDay;
}
checkDelta = true;
}
// If we haven't yet found a matching locale, go for the closest delta.
else
{
checkDelta = !foundLocale;
}
}
// If we want to check the time zone delta, do it now.
if (checkDelta && (delta < closestDelta))
{
closestIndex = timeZoneIndex;
closestDelta = delta;
}
}
// Scroll so that time zone is in the center of the screen and select it if it's an exact match.
LstSetTopItem(listP, max(0, closestIndex - (LstGetVisibleItems(listP) / 2)));
if ((closestDelta == 0) && (anyLocale || foundLocale))
{
LstSetSelection(listP, closestIndex);
if (showTimes)
{
newTime = currentTime;
PrvSetTimeField(dialog, TimeZoneDialogNewTimeField, newTimeHandle, &newTime, false);
}
}
else
{
LstSetSelection(listP, noListSelection);
}
LstSetDrawFunction(listP, PrvTimeZoneListDrawItem);
FrmDrawForm (dialog);
while (!done)
{
Boolean handled = false;
EvtGetEvent(&event, SysTicksPerSecond()); // so we can update the current and new time
if (SysHandleEvent ((EventType *)&event))
{
continue;
}
if (event.eType == nilEvent)
{
if (showTimes)
{
PrvUpdateTimeFields( dialog,
¤tTime,
&newTime,
currentTimeHandle,
newTimeHandle,
TimeZoneDialogCurrentTimeField,
TimeZoneDialogNewTimeField);
}
}
else if (event.eType == ctlSelectEvent)
{
handled = true;
switch (event.data.ctlSelect.controlID)
{
case TimeZoneDialogOKButton:
// Set the new time zone.
*ioTimeZoneP = newTimeZone;
*ioLocaleInTimeZoneP = newTimeZoneLocale;
done = true;
confirmed = true;
break;
case TimeZoneDialogCancelButton:
done = true;
break;
default:
ErrNonFatalDisplay("Unknown control in form");
break;
}
}
// User tapped on a time zone in the list.
else if (event.eType == lstSelectEvent)
{
UInt16 localeIndex;
ErrNonFatalDisplayIf(event.data.lstSelect.listID != TimeZoneDialogTimeZoneList,
"Unknown list in form");
newTimeZone = tzArrayP[event.data.lstSelect.selection].tzOffset;
newTimeZoneLocale.country =
tzArrayP[event.data.lstSelect.selection].tzCountry;
newTimeZoneLocale.language = lmAnyLanguage;
if (LmLocaleToIndex(&newTimeZoneLocale, &localeIndex) == errNone)
{
if (LmGetLocaleSetting( localeIndex,
lmChoiceLocale,
&newTimeZoneLocale,
sizeof(newTimeZoneLocale)))
{
ErrNonFatalDisplay("Can\'t get locale");
}
}
adjustTimes = showTimes;
handled = true;
}
else if (event.eType == keyDownEvent)
{
if (!TxtCharIsHardKey(event.data.keyDown.modifiers, event.data.keyDown.chr))
{
// Hard scroll buttons
if (EvtKeydownIsVirtual(&event))
{
if (event.data.keyDown.chr == vchrPageUp)
{
handled = true;
LstScrollList(listP, winUp, LstGetVisibleItems(listP) - 1);
}
else if (event.data.keyDown.chr == vchrPageDown)
{
handled = true;
LstScrollList(listP, winDown, LstGetVisibleItems(listP) - 1);
}
}
else if (TxtCharIsPrint(event.data.keyDown.chr))
{
Int16 index;
handled = true;
index = PrvSearchTimeZoneNames(tzArrayP, numTimeZones, event.data.keyDown.chr);
if (index != noListSelection)
{
Int16 delta = index - listP->topItem;
if (delta < 0)
{
LstScrollList(listP, winUp, -delta);
}
else if (delta > 0)
{
LstScrollList(listP, winDown, delta);
}
}
else
{
SndPlaySystemSound(sndError);
}
}
}
}
else if (event.eType == appStopEvent)
{
EvtAddEventToQueue (&event);
done = true;
break;
}
// If we didn't handle the event, give the form code a crack at it.
// This simulates the "normal" method of installing an event handler
// for a form, which gets called, and then if it returns false, the
// FrmHandleEvent routine gets called.
if (!handled)
{
FrmHandleEvent(dialog, &event);
}
// If something changed, and we need to update our time display,
// do it now.
if (adjustTimes)
{
adjustTimes = false;
newTime = currentTime;
TimAdjust(&newTime, (Int32)(newTimeZone - oldTimeZone) * minutesInSeconds);
PrvSetTimeField(dialog, TimeZoneDialogNewTimeField, newTimeHandle, &newTime, true);
}
} // end while true
if (showTimes)
{
FldSetTextHandle(FrmGetObjectPtr (dialog, FrmGetObjectIndex (dialog, TimeZoneDialogCurrentTimeField)), NULL);
FldSetTextHandle(FrmGetObjectPtr (dialog, FrmGetObjectIndex (dialog, TimeZoneDialogNewTimeField)), NULL);
MemHandleFree(currentTimeHandle);
MemHandleFree(newTimeHandle);
}
FrmEraseForm (dialog);
FrmDeleteForm (dialog);
FrmSetActiveForm(originalForm);
PrvDeleteTimeZoneArray(tzArrayP, tzNamesH);
return confirmed;
} // SelectTimeZone
