//Handles a click on File->Open
private void openFileClick(object sender, RoutedEventArgs e)
{
if(IsOpened)
{
var openChoice = MessageBox.Show("Are you sure you want to open a new file? Any unsaved changes to the current file will be lost!", "Open a file", MessageBoxButton.OKCancel);
if(openChoice == MessageBoxResult.Cancel) { return; }
}
OpenFileDialog openDialog = new OpenFileDialog();
openDialog.Filter = "BibTeX files (*.bib)|*.bib|All files (*.*)|*.*"; //http://www.wpf-tutorial.com/dialogs/the-openfiledialog/
openDialog.ShowDialog();
if(openDialog.FileName == "") { return; } //https://msdn.microsoft.com/en-us/library/aa984409(v=vs.71).aspx FileName gets set if the user clicks Cancel, too.
try
{
using (StreamReader openFile = new StreamReader(openDialog.FileName)) //As per lecture slides
{
BibEntity.entityList.Clear(); //Clear the list, because we're commited to opening a new file now
string[] itemArray = openFile.ReadToEnd().Split(new char[] {'@'}, StringSplitOptions.RemoveEmptyEntries);
foreach (string item in itemArray)
{
string entityString = Regex.Match(item, "(BOOK|MASTERSTHESIS|PHDTHESIS|ARTICLE)").Groups[1].Value;
string itemTitle = Regex.Match(item, @"title\s*=\s*{(.+)}").Groups[1].Value; //Wanted to write a regex that would catch all Unicode chars (. doesn't) except '}', but I'm not sure if that's possible
string itemAuthor = Regex.Match(item, @"author\s*=\s*{(.+)}").Groups[1].Value;
int itemYear;
try { itemYear = Int32.Parse(Regex.Match(item, @"year\s*=\s*{(.+)}").Groups[1].Value); }
catch (Exception exc) { MessageBox.Show("Invalid year! Item \"" + itemTitle + "\" not parsed! " + exc.Message); continue; }
DateTime itemEntryDate;
try { itemEntryDate = DateTime.Parse(Regex.Match(item, @"timestamp\s*=\s*{(.+)}").Groups[1].Value); } //https://msdn.microsoft.com/en-us/library/1k1skd40(v=vs.110).aspx
catch(Exception exc) { MessageBox.Show("Something went wrong! Item \"" + itemTitle + "\" not parsed! " + exc.Message); continue; }
string itemUser = Regex.Match(item, @"owner\s*=\s*{(.+)}").Groups[1].Value;
BibEntity itemEntity;
switch(entityString)
{
case "BOOK":
string itemPublisher = Regex.Match(item, @"publisher\s*=\s*{(.+)}").Groups[1].Value;
string itemPublisherAddr = Regex.Match(item, @"address\s*=\s*{(.+)}").Groups[1].Value;
itemEntity = new Book(itemTitle, itemAuthor, itemYear, itemPublisher, itemPublisherAddr, EntityType.BOOK, itemEntryDate);
itemEntity.User = itemUser;
BibEntity.entityList.Add(itemEntity);
break;
case "MASTERSTHESIS":
string itemSchool = Regex.Match(item, @"school\s*=\s*{(.+)}").Groups[1].Value;
itemEntity = new Thesis(itemTitle, itemAuthor, itemYear, ThesisType.MASTERSTHESIS, itemSchool, EntityType.THESIS, itemEntryDate);
itemEntity.User = itemUser;
BibEntity.entityList.Add(itemEntity);
break;
case "PHDTHESIS":
itemSchool = Regex.Match(item, @"school\s*=\s*{(.+)}").Groups[1].Value;
itemEntity = new Thesis(itemTitle, itemAuthor, itemYear, ThesisType.PHDTHESIS, itemSchool, EntityType.THESIS, itemEntryDate);
itemEntity.User = itemUser;
BibEntity.entityList.Add(itemEntity);
break;
case "ARTICLE":
string itemJournal = Regex.Match(item, @"journal\s*=\s*{(.+)}").Groups[1].Value;
int itemVolume;
try { itemVolume = Int32.Parse(Regex.Match(item, @"volume\s*=\s*{(.+)}").Groups[1].Value); }
catch(Exception exc) { MessageBox.Show("Invalid volume! Item \"" + itemTitle + "\" not parsed! " + exc.Message); continue; }
itemEntity = new Article(itemTitle, itemAuthor, itemYear, itemJournal, itemVolume, EntityType.ARTICLE, itemEntryDate);
itemEntity.User = itemUser;
BibEntity.entityList.Add(itemEntity);
break;
default: //In case of an unparsable entity type
MessageBox.Show("Unknown entity type! Item \"" + itemTitle + "\" not parsed!");
break;
}
}
}
entryList.Items.Refresh();
IsOpened = true;
setControls(true);
this.Title = WindowTitle + " (" + openDialog.FileName + ")";
}
catch(Exception exc) { MessageBox.Show("Something went wrong! " + exc.Message); return; }
}
//Handles a click on the OK button
private void btnOKHandle(object sender, RoutedEventArgs e)
{
if(validateFields())
{
if (IsNew)
{
BibEntity newEntity;
switch (entryType)
{
case EntityType.BOOK:
newEntity = new Book(titleField.Text, authorField.Text, parsedYear,
publisherField.Text, publisherAddrField.Text, EntityType.BOOK,
new DateTime(System.DateTime.Now.Year, System.DateTime.Now.Month, System.DateTime.Now.Day));
BibEntity.entityList.Add(newEntity);
break;
case EntityType.THESIS:
newEntity = new Thesis(titleField.Text, authorField.Text, parsedYear, //v--- I love this cast within a cast
(ThesisType)((ComboBoxItem)thesisTypeBox.SelectedItem).Tag, schoolField.Text, EntityType.THESIS,
new DateTime(System.DateTime.Now.Year, System.DateTime.Now.Month, System.DateTime.Now.Day));
BibEntity.entityList.Add(newEntity);
break;
case EntityType.ARTICLE:
newEntity = new Article(titleField.Text, authorField.Text, parsedYear,
journalField.Text, parsedVolume, EntityType.ARTICLE,
new DateTime(System.DateTime.Now.Year, System.DateTime.Now.Month, System.DateTime.Now.Day));
BibEntity.entityList.Add(newEntity);
break;
}
} else
{
editEntity.Title = titleField.Text;
editEntity.Authors = new Author(authorField.Text);
editEntity.Year = parsedYear;
switch(entryType)
{
case EntityType.BOOK:
editEntity.Publisher = publisherField.Text;
editEntity.PublisherAddr = publisherAddrField.Text;
break;
case EntityType.THESIS:
editEntity.ThesisEntityType = (ThesisType)((ComboBoxItem)thesisTypeBox.SelectedItem).Tag; //This cast is so awesome
editEntity.School = schoolField.Text;
break;
case EntityType.ARTICLE:
editEntity.Journal = journalField.Text;
editEntity.Volume = parsedVolume;
break;
}
}
this.Close();
}
}
