public void SaveGradeScale()
{
try
{
PagedViewModelWithPopups popupHost;
if (ShowSaveScalePopupInSeparatePopupPane)
{
// We'll show on a popup layer a level higher, so that the current content is still visible
popupHost = MainScreenViewModel.GetPopupViewModelHost();
}
else
{
popupHost = GetPopupViewModelHost();
}
popupHost.ShowPopup(new SaveGradeScaleViewModel(popupHost, MainScreenViewModel, new SaveGradeScaleViewModel.Parameter()
{
Name = "",
OnSaved = delegate
{
var dontWait = ReloadSavedGradeScalesPicker();
},
Scales = GradeScales.ToArray()
}));
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
}
}
private void UpdateSelectedSavedGradeScale()
{
try
{
var scales = SavedGradeScales;
if (scales == null)
{
return;
}
GradeScale[] curr = GradeScales.ToArray();
var matching = scales.Where(i => i.GradeScales != null).FirstOrDefault(i => i.GradeScales.SequenceEqual(curr));
// If no match, we use the Custom (not saved) last item
if (matching == null)
{
matching = scales.Last();
}
if (SelectedSavedGradeScale == matching)
{
return;
}
SetSelectedGradeScaleWithoutChangingExistingScales(matching);
}
catch { }
}
protected override BaseItem serialize()
{
Class into = new Class()
{
CourseNumber = CourseNumber,
GradeScales = GradeScales?.ToArray(),
ShouldAverageGradeTotals = ShouldAverageGradeTotals,
Credits = Credits,
Position = Position,
Color = Color.FromArgb(255, RawColor[0], RawColor[1], RawColor[2]).ToString(),
DoesRoundGradesUp = DoesRoundGradesUp
};
base.serialize(into);
return(into);
}
private void OnSelectedSavedGradeScaleChanged()
{
SavedGradeScale savedScale = SelectedSavedGradeScale;
if (savedScale == null || savedScale.GradeScales == null)
{
return;
}
foreach (var s in GradeScales)
{
s.PropertyChanged -= GradeScale_PropertyChanged;
}
GradeScales.Clear();
GradeScales.AddRange(savedScale.GradeScales.Select(i => new GradeScale(i.StartGrade, i.GPA)));
foreach (var s in GradeScales)
{
s.PropertyChanged += GradeScale_PropertyChanged;
}
}
public async void Save()
{
try
{
if (!AreScalesValid())
{
await new PortableMessageDialog(PowerPlannerResources.GetString("String_InvalidGradeScalesMessageBody"), PowerPlannerResources.GetString("String_InvalidGradeScalesMessageHeader")).ShowAsync();
return;
}
GradeScale[] newScales = GradeScales.ToArray();
DataChanges changes = new DataChanges();
// Class changes
{
var c = new DataItemClass()
{
Identifier = Class.Identifier
};
c.SetGradeScales(newScales);
changes.Add(c);
}
TryStartDataOperationAndThenNavigate(delegate
{
return(PowerPlannerApp.Current.SaveChanges(changes));
}, delegate
{
this.RemoveViewModel();
});
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
await new PortableMessageDialog("Error encountered while saving. Your error report has been sent to the developer.", "Error").ShowAsync();
}
}
protected override void deserialize(BaseItem item, List <PropertyNames> changedProperties)
{
Class c = item as Class;
Color color = ColorTranslator.FromHtml(c.Color);
byte[] rawColor = new byte[]
{
color.R, color.G, color.B
};
if (changedProperties != null)
{
if (CourseNumber != c.CourseNumber)
{
changedProperties.Add(PropertyNames.CourseNumber);
}
if ((GradeScales == null && c.GradeScales != null) ||
(GradeScales != null && c.GradeScales == null) ||
(GradeScales != null && c.GradeScales != null && !GradeScales.SequenceEqual(c.GradeScales)))
{
changedProperties.Add(PropertyNames.GradeScales);
}
if (ShouldAverageGradeTotals != c.ShouldAverageGradeTotals)
{
changedProperties.Add(PropertyNames.ShouldAverageGradeTotals);
}
if (Credits != c.Credits)
{
changedProperties.Add(PropertyNames.Credits);
}
if (Position != c.Position)
{
changedProperties.Add(PropertyNames.Position);
}
if (!RawColor.SequenceEqual(rawColor))
{
changedProperties.Add(PropertyNames.Color);
}
if (DoesRoundGradesUp != c.DoesRoundGradesUp)
{
changedProperties.Add(PropertyNames.DoesRoundGradesUp);
}
}
CourseNumber = c.CourseNumber;
GradeScales = c.GradeScales;
ShouldAverageGradeTotals = c.ShouldAverageGradeTotals;
Credits = c.Credits;
Position = c.Position;
RawColor = rawColor;
DoesRoundGradesUp = c.DoesRoundGradesUp;
base.deserialize(c, changedProperties);
}
private void CalculateInternal()
{
double totalGrade = 0, totalWeight = 0;
// GRADE CALCULATION:
//
// WEIGHT VALUE * PERCENT = FINAL PERCENT (totalGrade is the sum of these percents)
// 15 * 97% = 14.55%
// 30 * 90% = 27%
// 55 * 93% = 51.15%
// -----------------------------------------------
// GRADE = (14.55% + 27% + 51.15%) / WEIGHT VALUE TOTAL = 92.7%
//
//
// ALTERNATIVELY:
//
// GRADE = SUM(WEIGHT PERCENT * WEIGHT AMOUNT) / WEIGHT AMOUNT TOTAL
// = totalGrade / totalWeight;
foreach (WeightCategoryWin w in WeightCategories)
{
if (this.ShouldAverageGradeTotals)
{
if (w.WeightAchievedAveraged != PowerPlannerSending.Grade.UNGRADED)
{
totalGrade += w.WeightAchievedAveraged;
totalWeight += w.WeightValue;
}
}
else
{
if (w.WeightAchievedSummed != PowerPlannerSending.Grade.UNGRADED)
{
totalGrade += w.WeightAchievedSummed;
totalWeight += w.WeightValue;
}
}
}
//if there was actually a grade
if (totalWeight != 0)
{
this.Grade = totalGrade / totalWeight;
}
else
{
this.Grade = 1;
}
//if they have a custom grade scale
if (this.GradeScales != null && this.GradeScales.Length != 0)
{
//if the grade percents are rounded up
if (this.DoesRoundGradesUp)
{
int roundedGrade = (int)MyMath.Round(Grade * 100);
for (int i = 0; i < GradeScales.Length; i++)
{
if (roundedGrade >= (GradeScales[i]).StartGrade)
{
//GradeLetter = (GradeScales[i]).LetterGrade;
GPA = (GradeScales[i]).GPA;
return;
}
}
}
else
{
for (int i = 0; i < GradeScales.Length; i++)
{
if (Grade * 100 >= (GradeScales[i]).StartGrade)
{
//GradeLetter = (GradeScales[i]).LetterGrade;
GPA = (GradeScales[i]).GPA;
return;
}
}
}
//GradeLetter = GradeScales.Last().LetterGrade;
GPA = GradeScales.Last().GPA;
}
//use default grade scale
else
{
int roundedGrade = MyMath.Round(Grade * 100);
if (roundedGrade >= 97)
{
GradeLetter = "A+";
}
else if (roundedGrade >= 93)
{
GradeLetter = "A";
}
else if (roundedGrade >= 90)
{
GradeLetter = "A-";
}
else if (roundedGrade >= 87)
{
GradeLetter = "B+";
}
else if (roundedGrade >= 83)
{
GradeLetter = "B";
}
else if (roundedGrade >= 80)
{
GradeLetter = "B-";
}
else if (roundedGrade >= 77)
{
GradeLetter = "C+";
}
else if (roundedGrade >= 73)
{
GradeLetter = "C";
}
else if (roundedGrade >= 70)
{
GradeLetter = "C-";
}
else if (roundedGrade >= 67)
{
GradeLetter = "D+";
}
else if (roundedGrade >= 63)
{
GradeLetter = "D";
}
else if (roundedGrade >= 60)
{
GradeLetter = "D-";
}
else
{
GradeLetter = "F";
}
if (roundedGrade >= 90)
{
GPA = 4;
}
else if (roundedGrade >= 80)
{
GPA = 3;
}
else if (roundedGrade >= 70)
{
GPA = 2;
}
else if (roundedGrade >= 60)
{
GPA = 1;
}
else
{
GPA = 0;
}
}
}
public void RemoveGradeScale(GradeScale scale)
{
scale.PropertyChanged -= GradeScale_PropertyChanged;
GradeScales.Remove(scale);
UpdateSelectedSavedGradeScale();
}
public void AddGradeScale()
{
GradeScales.Add(new GradeScale());
GradeScales.Last().PropertyChanged += GradeScale_PropertyChanged;
UpdateSelectedSavedGradeScale();
}