async public static Task <AbstractMark[]> GetGroupMarks(Group group)
{
HttpResponseMessage response = await WebRequestHandler.GET(markRoute + "/" + "?group=" + group.id.ToString());
AbstractMark[] marks = AbstractMark.CreateFromJsonString(await response.Content.ReadAsStringAsync());
return(marks);
}
public static Color ScoreGrade(AbstractMark mark, int maxScore, Student student)
{
/// <summary>
/// Returns a cell colour for a `mark`. The ALPS grade of `student` is used.
/// </summary>
// Get prerequesites
float percentage = (float)mark.GetScore() / (float)maxScore; // Convert to floats to avoid integer division - https://stackoverflow.com/questions/37641472/how-do-i-calculate-a-percentage-of-a-number-in-c
float adjustedAlps = (float)student.alps / 100f;
float diff = adjustedAlps - percentage;
if (diff > 0.4)
{
return(Color.Red);
}
else if (diff > 0.25)
{
return(Color.Orange);
}
else
{
return(Color.Green);
}
}
private void CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
if (!this.dataGridInitialised || e.ColumnIndex <= -1 || e.RowIndex <= -1)
{
return;
}
DataGridViewCell cell = dataGrid[e.ColumnIndex, e.RowIndex];
AbstractMark mark = this.markGrid[e.ColumnIndex, e.RowIndex];
Assignment task = this.taskIdToTask[mark.GetTaskId()];
Student student = this.studentIdToStudent[mark.GetStudentId()];
string newValue = cell.EditedFormattedValue.ToString();
int newScore = 0;
bool isDigit = Int32.TryParse(newValue, out newScore);
if (!isDigit || newScore < 0 || newScore > task.maxScore)
{
return;
}
// Changed mark from N/A
if (mark.GetFeedback() == null)
{
mark.UpdateFeedback("No feedback given."); // NO API CALLS MADE IN THIS METHOD
}
mark.UpdateScore(newScore); // NO API CALLS MADE IN THIS METHOD
this.markGrid[e.ColumnIndex, e.RowIndex] = mark; // Update cell data
cell.Style.BackColor = ScoreGrade(mark, task.maxScore, student);
APIHandler.GiveFeedback(student, task, newScore, mark.GetFeedback());
}
private void CellToolTipTextNeeded(object sender, DataGridViewCellToolTipTextNeededEventArgs e)
{
if (e.RowIndex <= -1 || e.ColumnIndex <= -1)
{
return;
}
AbstractMark mark = this.markGrid[e.ColumnIndex, e.RowIndex];
if (mark != null)
{
Assignment assignment = taskIdToTask[mark.GetTaskId()];
Student student = studentIdToStudent[mark.GetStudentId()];
e.ToolTipText = "Score: " + mark.GetScore().ToString() + "\nOut of: " + assignment.maxScore + "\nALPs grade: " + student.GetAlpsString() + "\nFeedback provided: " + mark.GetFeedback();
}
else
{
e.ToolTipText = "Feedback not yet provided";
}
}
public static AbstractMark[] CreateFromJsonString(string json)
{
dynamic jsonObj = JsonConvert.DeserializeObject(json);
AbstractMark[] marks = new AbstractMark[jsonObj.data.Count]; // The provided JSON may be an array of marks
for (int i = 0; i < jsonObj.data.Count; i++)
{
dynamic markObj = jsonObj.data[i]; // Get the mark
bool hasMarked = markObj.has_marked;
string feedback = markObj.feedback;
int score = markObj.score;
int studentId = markObj.student.reference.id;
int taskId = markObj.task.reference.id;
marks[i] = new AbstractMark(studentId, taskId, feedback, score, hasMarked);
}
return(marks);
}
private void CellValueNeeded(object sender, DataGridViewCellValueEventArgs e)
{
if (e.RowIndex <= -1 || e.ColumnIndex <= -1)
{
return;
}
AbstractMark mark = this.markGrid[e.ColumnIndex, e.RowIndex];
DataGridViewCell cell = dataGrid[e.ColumnIndex, e.RowIndex];
if (mark.HasMarked())
{
e.Value = mark.GetScoreString();
int maxScore = this.taskIdToTask[mark.GetTaskId()].maxScore;
Student student = this.studentIdToStudent[mark.GetStudentId()];
cell.Style.BackColor = ScoreGrade(mark, maxScore, student);
}
else
{
cell.Style.BackColor = Color.Gray;
e.Value = "N/A";
}
}
