/// <summary>
/// ButtonEvent that creates a new loan if the user is in the process of creating a loan, or as returnbutton if the user has an existing loan selected.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void returnCreateLoanBTN_Click(object sender, EventArgs e)
{
if (createNewLoan)
{
if (ValidLoanInput())
{
if (loanInputBookCopy.OnActiveLoan())
{
string confirmBoxText = "The Bookcopy you selected is already on loan";
string confirmBoxTitle = "Bookcopy already on loan";
InfoPopup(confirmBoxText, confirmBoxTitle);
}
else // Allowed to create a new loan
{
Loan newLoan = new Loan(loanInputBookCopy, loanInputMember, timeOfLoanDTP.Value, dueDateDTP.Value);
loanService.Add(newLoan);
UpdateLoanInfoPanel(newLoan); // Update info panel to reflect the loan return.
UpdateLoansList(currentLoanDisplay);
int loanIndex = currentLoanDisplay.FindIndex(a => a == newLoan);
LoansLV.Items[loanIndex].Selected = true;// Reselects the loan from the LoansListView
UpdateAvailableBookCopiesAutoComplete();
}
}
else
{
string confirmBoxText = "All fields did not contain valid data. Make sure your BookCopy and Member fields contain existing data.";
string confirmBoxTitle = "Invalid Loan Data.";
InfoPopup(confirmBoxText, confirmBoxTitle);
}
}
else //Return Loan
{
ListViewItem item = LoansLV.SelectedItems[0];
int loanID = Int32.Parse(item.SubItems[0].Text);
Loan loan = loanService.Find(loanID);
loanService.ReturnLoan(loan, timeOfReturnDTP.Value);
if (CalculateLoanFine(loan) > 0)
{
string confirmBoxText = string.Format("The Book was returned {0} days late. Fine for a {0} day late return is {1}.", CalculateLoanFine(loan) / dailyFine, CalculateLoanFine(loan));
string confirmBoxTitle = "Fine for late return";
InfoPopup(confirmBoxText, confirmBoxTitle);
}
else
{
string confirmBoxText = "Loan return has successfully been registered.";
string confirmBoxTitle = "Loan has been returned";
InfoPopup(confirmBoxText, confirmBoxTitle);
}
UpdateLoanInfoPanel(loan); // Update info panel to reflect the loan return.
UpdateLoansList(currentLoanDisplay);
int loanIndex = currentLoanDisplay.FindIndex(a => a == loan);
LoansLV.Items[loanIndex].Selected = true;// Reselects the loan from the LoansListView
}
UpdateAvailableBookCopiesAutoComplete();
}
/// <summary>
/// Custom draw mode to enable text coloring based on bookCopy availability.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void lbCopies_DrawItem(object sender, DrawItemEventArgs e)
{
if (e.Index > -1) // If user clicked on an actual item from the listbox.
{
BookCopy item = lbCopies.Items[e.Index] as BookCopy; // Get the current item and cast it to MyListBoxItem
e.DrawBackground();
e.DrawFocusRectangle();
if (item != null)
{
Color color = availableColor;
if (item.OnActiveLoan())
{
color = unavailableColor;
}
e.Graphics.DrawString( // Draw the appropriate text in the ListBox
item.ToString(), // The message linked to the item
lbCopies.Font, // Take the font from the listbox
new SolidBrush(color), // Set the color
0, // X pixel coordinate
e.Index * lbCopies.ItemHeight // Y pixel coordinate. Multiply the index by the ItemHeight defined in the listbox.
);
}
else
{
e.Graphics.DrawString( // Draw the appropriate text in the ListBox
lbCopies.Items[e.Index].ToString(), // The message linked to the item
lbCopies.Font, // Take the font from the listbox
new SolidBrush(Color.Black), // Set the color
0, // X pixel coordinate
e.Index * lbCopies.ItemHeight // Y pixel coordinate. Multiply the index by the ItemHeight defined in the listbox.
);
}
}
}