public void MakeNumberOfMonthsVisible(int number)
{
if (VisibleMonthViews.Count == number)
{
return;
}
if (VisibleMonthViews.Count < number)
{
DateTime rightMostDate = VisibleMonthViews.Last().BudgetMonthView.Date;
int monthsToAdd = number - VisibleMonthViews.Count;
for (int i = 0; i < monthsToAdd; i++)
{
rightMostDate = rightMostDate.AddMonths(1);
BudgetMonthViewModel newView = new BudgetMonthViewModel(new BudgetMonthView(_budgetModel, rightMostDate));
VisibleMonthViews.Add(newView);
}
}
else if (VisibleMonthViews.Count > number)
{
int monthsToRemove = VisibleMonthViews.Count - number;
while (VisibleMonthViews.Count > number)
{
BudgetMonthViewModel monthToRemove = VisibleMonthViews[VisibleMonthViews.Count - 1];
VisibleMonthViews.Remove(monthToRemove);
monthToRemove.Dispose();
}
}
SetFirstVisibleMonthProperty();
UpdateMonthSelector();
}
private void InitializeMonthViews()
{
VisibleMonthViews = new ObservableCollection <BudgetMonthViewModel>();
_selectedMonth = new BudgetMonthViewModel(new BudgetMonthView(_budgetModel, DateTime.Today));
VisibleMonthViews.Add(_selectedMonth);
SetFirstVisibleMonthProperty();
UpdateMonthSelector();
}
public MasterCategoryMonthViewModel(BudgetEditorViewModel budgetEditor,
BudgetMonthViewModel budgetMonthViewModel,
MasterCategoryRowViewModel masterCategoryRow,
MasterCategoryMonthView masterCategoryMonthView)
{
_budgetEditor = budgetEditor ?? throw new ArgumentNullException(nameof(budgetEditor));
_budgetMonthViewModel = budgetMonthViewModel ?? throw new ArgumentNullException(nameof(budgetMonthViewModel));
_masterCategoryRow = masterCategoryRow ?? throw new ArgumentNullException(nameof(masterCategoryRow));
MasterCategoryMonthView = masterCategoryMonthView ?? throw new ArgumentNullException(nameof(masterCategoryMonthView));
}
public MasterCategoryMonthViewModel(BudgetEditorViewModel budgetEditor,
BudgetMonthViewModel budgetMonthViewModel,
MasterCategoryRowViewModel masterCategoryRow,
BudgetMonthView budgetMonthView,
string masterCategoryId)
{
_budgetEditor = budgetEditor ?? throw new ArgumentNullException(nameof(budgetEditor));
_budgetMonthViewModel = budgetMonthViewModel ?? throw new ArgumentNullException(nameof(budgetMonthViewModel));
_masterCategoryRow = masterCategoryRow ?? throw new ArgumentNullException(nameof(masterCategoryRow));
_budgetMonthView = budgetMonthView ?? throw new ArgumentNullException(nameof(budgetMonthView));
_masterCategoryId = masterCategoryId ?? throw new ArgumentNullException(nameof(masterCategoryId));
RegisterForCallback();
}
private void SelectMonth(DateTime month)
{
if (_selectedMonth.BudgetMonthView.Date == month)
{
return;
}
int visibleMonthsCount = VisibleMonthViews.Count;
var desiredMonths = CalculateDesiredMonths(month, visibleMonthsCount);
List <BudgetMonthViewModel> monthsToKeep = new List <BudgetMonthViewModel>();
for (int i = 0; i < desiredMonths.Count; i++)
{
var desiredMonth = desiredMonths[i];
var monthToKeep = VisibleMonthViews.Where(vm => vm.BudgetMonthView.Date == desiredMonth.desiredMonthDate).SingleOrDefault();
if (monthToKeep != null)
{
desiredMonth.desiredMonth = monthToKeep;
monthsToKeep.Add(monthToKeep);
}
else
{
desiredMonth.desiredMonth = new BudgetMonthViewModel(new BudgetMonthView(_budgetModel, desiredMonth.desiredMonthDate));
}
desiredMonths[i] = desiredMonth;
}
var monthsToDispose = VisibleMonthViews.Where(vm => !monthsToKeep.Contains(vm)).ToList();
foreach (var monthToDispose in monthsToDispose)
{
monthToDispose.Dispose();
}
for (int i = 0; i < visibleMonthsCount; i++)
{
VisibleMonthViews[i] = desiredMonths[i].desiredMonth;
}
_selectedMonth = VisibleMonthViews[0];
UpdateMonthSelector();
SetFirstVisibleMonthProperty();
}
public CategoryMonthViewModel(BudgetMonthViewModel budgetMonthViewModel, CategoryRowViewModel categoryRowViewModel, MasterCategoryMonthView masterCategoryMonthView, string categoryId)
{
BudgetMonthViewModel = budgetMonthViewModel;
CategoryRowViewModel = categoryRowViewModel;
RegisterForCallBack(masterCategoryMonthView, categoryId);
}
public CategoryMonthViewModel(BudgetMonthViewModel budgetMonthViewModel, CategoryRowViewModel categoryRowViewModel, CategoryMonthView monthView)
{
BudgetMonthViewModel = budgetMonthViewModel;
CategoryRowViewModel = categoryRowViewModel;
CategoryMonthView = monthView;
}
