List<List<MonthCellDescriptor>> getMonthCells(MonthDescriptor month, Calendar startCal) {
Calendar cal = Calendar.getInstance(locale);
cal.setTime(startCal.getTime());
List<List<MonthCellDescriptor>> cells = new ArrayList<List<MonthCellDescriptor>>();
cal.set(DAY_OF_MONTH, 1);
int firstDayOfWeek = cal.get(DAY_OF_WEEK);
int offset = cal.getFirstDayOfWeek() - firstDayOfWeek;
if (offset > 0) {
offset -= 7;
}
cal.add(Calendar.DATE, offset);
Calendar minSelectedCal = minDate(selectedCals);
Calendar maxSelectedCal = maxDate(selectedCals);
while ((cal.get(MONTH) < month.getMonth() + 1 || cal.get(YEAR) < month.getYear()) //
&& cal.get(YEAR) <= month.getYear()) {
Logr.d("Building week row starting at %s", cal.getTime());
List<MonthCellDescriptor> weekCells = new ArrayList<MonthCellDescriptor>();
cells.add(weekCells);
for (int c = 0; c < 7; c++) {
Date date = cal.getTime();
boolean isCurrentMonth = cal.get(MONTH) == month.getMonth();
boolean isSelected = isCurrentMonth && containsDate(selectedCals, cal);
boolean isSelectable =
isCurrentMonth && betweenDates(cal, minCal, maxCal) && isDateSelectable(date);
boolean isToday = sameDate(cal, today);
boolean isHighlighted = containsDate(highlightedCals, cal);
int value = cal.get(DAY_OF_MONTH);
MonthCellDescriptor.RangeState rangeState = MonthCellDescriptor.RangeState.NONE;
if (selectedCals.size() > 1) {
if (sameDate(minSelectedCal, cal)) {
rangeState = MonthCellDescriptor.RangeState.FIRST;
} else if (sameDate(maxDate(selectedCals), cal)) {
rangeState = MonthCellDescriptor.RangeState.LAST;
} else if (betweenDates(cal, minSelectedCal, maxSelectedCal)) {
rangeState = MonthCellDescriptor.RangeState.MIDDLE;
}
}
weekCells.add(
new MonthCellDescriptor(
date,
isCurrentMonth,
isSelectable,
isSelected,
isToday,
isHighlighted,
value,
rangeState));
cal.add(DATE, 1);
}
}
return cells;
}
/** Return cell and month-index (for scrolling) for a given Date. */
private MonthCellWithMonthIndex getMonthCellWithIndexByDate(Date date) {
int index = 0;
Calendar searchCal = Calendar.getInstance(locale);
searchCal.setTime(date);
Calendar actCal = Calendar.getInstance(locale);
for (List<List<MonthCellDescriptor>> monthCells : cells) {
for (List<MonthCellDescriptor> weekCells : monthCells) {
for (MonthCellDescriptor actCell : weekCells) {
actCal.setTime(actCell.getDate());
if (sameDate(actCal, searchCal) && actCell.isSelectable()) {
return new MonthCellWithMonthIndex(actCell, index);
}
}
}
index++;
}
return null;
}
public void highlightDates(Collection<Date> dates) {
for (Date date : dates) {
validateDate(date);
MonthCellWithMonthIndex monthCellWithMonthIndex = getMonthCellWithIndexByDate(date);
if (monthCellWithMonthIndex != null) {
Calendar newlyHighlightedCal = Calendar.getInstance();
newlyHighlightedCal.setTime(date);
MonthCellDescriptor cell = monthCellWithMonthIndex.cell;
highlightedCells.add(cell);
highlightedCals.add(newlyHighlightedCal);
cell.setHighlighted(true);
}
}
adapter.notifyDataSetChanged();
setAdapter(adapter);
}
private boolean doSelectDate(Date date, MonthCellDescriptor cell) {
Calendar newlySelectedCal = Calendar.getInstance(locale);
newlySelectedCal.setTime(date);
// Sanitize input: clear out the hours/minutes/seconds/millis.
setMidnight(newlySelectedCal);
// Clear any remaining range state.
for (MonthCellDescriptor selectedCell : selectedCells) {
selectedCell.setRangeState(RangeState.NONE);
}
switch (selectionMode) {
case RANGE:
if (selectedCals.size() > 1) {
// We've already got a range selected: clear the old one.
clearOldSelections();
} else if (selectedCals.size() == 1 && newlySelectedCal.before(selectedCals.get(0))) {
// We're moving the start of the range back in time: clear the
// old start date.
clearOldSelections();
}
break;
case MULTIPLE:
date = applyMultiSelect(date, newlySelectedCal);
break;
case SINGLE:
clearOldSelections();
break;
default:
throw new IllegalStateException("Unknown selectionMode " + selectionMode);
}
if (date != null) {
// Select a new cell.
if (selectedCells.size() == 0 || !selectedCells.get(0).equals(cell)) {
selectedCells.add(cell);
cell.setSelected(true);
}
selectedCals.add(newlySelectedCal);
if (selectionMode == SelectionMode.RANGE && selectedCells.size() > 1) {
// Select all days in between start and end.
Date start = selectedCells.get(0).getDate();
Date end = selectedCells.get(1).getDate();
selectedCells.get(0).setRangeState(MonthCellDescriptor.RangeState.FIRST);
selectedCells.get(1).setRangeState(MonthCellDescriptor.RangeState.LAST);
for (List<List<MonthCellDescriptor>> month : cells) {
for (List<MonthCellDescriptor> week : month) {
for (MonthCellDescriptor singleCell : week) {
if (singleCell.getDate().after(start)
&& singleCell.getDate().before(end)
&& singleCell.isSelectable()) {
singleCell.setSelected(true);
singleCell.setRangeState(MonthCellDescriptor.RangeState.MIDDLE);
selectedCells.add(singleCell);
}
}
}
}
}
}
// Update the adapter.
validateAndUpdate();
return date != null;
}
/**
* Both date parameters must be non-null and their {@link Date#getTime()} must not return 0. Time
* of day will be ignored. For instance, if you pass in {@code minDate} as 11/16/2012 5:15pm and
* {@code maxDate} as 11/16/2013 4:30am, 11/16/2012 will be the first selectable date and
* 11/15/2013 will be the last selectable date ({@code maxDate} is exclusive).
*
* <p>This will implicitly set the {@link SelectionMode} to {@link SelectionMode#SINGLE}. If you
* want a different selection mode, use {@link FluentInitializer#inMode(SelectionMode)} on the
* {@link FluentInitializer} this method returns.
*
* <p>The calendar will be constructed using the given locale. This means that all names (months,
* days) will be in the language of the locale and the weeks start with the day specified by the
* locale.
*
* @param minDate Earliest selectable date, inclusive. Must be earlier than {@code maxDate}.
* @param maxDate Latest selectable date, exclusive. Must be later than {@code minDate}.
*/
public FluentInitializer init(Date minDate, Date maxDate, Locale locale) {
if (minDate == null || maxDate == null) {
throw new IllegalArgumentException(
"minDate and maxDate must be non-null. " + dbg(minDate, maxDate));
}
if (minDate.after(maxDate)) {
throw new IllegalArgumentException(
"minDate must be before maxDate. " + dbg(minDate, maxDate));
}
if (minDate.getTime() == 0 || maxDate.getTime() == 0) {
throw new IllegalArgumentException(
"minDate and maxDate must be non-zero. " + dbg(minDate, maxDate));
}
if (locale == null) {
throw new IllegalArgumentException("Locale is null.");
}
// Make sure that all calendar instances use the same locale.
this.locale = locale;
today = Calendar.getInstance(locale);
minCal = Calendar.getInstance(locale);
maxCal = Calendar.getInstance(locale);
monthCounter = Calendar.getInstance(locale);
monthNameFormat =
new SimpleDateFormat(getContext().getString(R.string.month_name_format), locale);
for (MonthDescriptor month : months) {
month.setLabel(monthNameFormat.format(month.getDate()));
}
weekdayNameFormat =
new SimpleDateFormat(getContext().getString(R.string.day_name_format), locale);
fullDateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM, locale);
this.selectionMode = SelectionMode.SINGLE;
// Clear out any previously-selected dates/cells.
selectedCals.clear();
selectedCells.clear();
highlightedCells.clear();
// Clear previous state.
cells.clear();
months.clear();
minCal.setTime(minDate);
maxCal.setTime(maxDate);
setMidnight(minCal);
setMidnight(maxCal);
displayOnly = false;
// maxDate is exclusive: bump back to the previous day so if maxDate is
// the first of a month,
// we don't accidentally include that month in the view.
maxCal.add(MINUTE, -1);
// Now iterate between minCal and maxCal and build up our list of months
// to show.
monthCounter.setTime(minCal.getTime());
final int maxMonth = maxCal.get(MONTH);
final int maxYear = maxCal.get(YEAR);
while ((monthCounter.get(MONTH) <= maxMonth // Up to, including the
// month.
|| monthCounter.get(YEAR) < maxYear) // Up to the year.
&& monthCounter.get(YEAR) < maxYear + 1) { // But not > next yr.
Date date = monthCounter.getTime();
MonthDescriptor month =
new MonthDescriptor(
monthCounter.get(MONTH), monthCounter.get(YEAR), date, monthNameFormat.format(date));
cells.add(getMonthCells(month, monthCounter));
// Logr.d("Adding month %s", month);
months.add(month);
monthCounter.add(MONTH, 1);
}
validateAndUpdate();
return new FluentInitializer();
}