/// <summary>
/// Creates a new song
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
int length = 0;
bool result = Int32.TryParse(this.lengthBox.Text.Trim(), out length);
if (result && length > 0 && this.artistBox.Text.Trim().Length > 0
&& this.albumBox.Text.Trim().Length > 0
&& this.titleBox.Text.Trim().Length > 0
&& this.genreBox.Text.Trim().Length > 0)
{
Song newSong = new Song(this.artistBox.Text.Trim(),
this.albumBox.Text.Trim(),
this.titleBox.Text.Trim(),
this.genreBox.Text.Trim(),
Convert.ToInt32(this.lengthBox.Text.Trim()));
this.projectController.AddSong(newSong);
this.DialogResult = DialogResult.OK;
this.Dispose();
}
else if (!result)
{
MessageBox.Show("Please enter a valid length (in seconds)");
}
else
{
MessageBox.Show("Invalid information. Please verify all fields are filled out.");
}
}
/// <summary>
/// Removes a song from the database
/// </summary>
/// <param name="s">The song to remove from the database</param>
public void RemoveSong(Song s)
{
this.Songs.RemoveAll(r => r.Artist == s.Artist &&
r.Album == s.Album &&
r.Title == s.Title &&
r.Genre == s.Genre &&
r.Length == s.Length);
}
/// <summary>
/// Adds a song to the database
/// </summary>
/// <param name="song">The song to add to the database</param>
public void AddSong(Song song)
{
this.Songs.Add(song);
}
/// <summary>
/// Saves the newly edited song
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
// Create the song that is to be added to the database
DataGridViewRow row = dataGridView1.Rows[e.RowIndex];
Song toAdd = new Song(row.Cells[0].Value.ToString(),
row.Cells[1].Value.ToString(),
row.Cells[2].Value.ToString(),
row.Cells[3].Value.ToString(),
(int)row.Cells[4].Value);
// If the new song is different than the old song, remove the old one and add the new one then refresh
if (toAdd.Artist != this.currentEdit.Artist ||
toAdd.Album != this.currentEdit.Album ||
toAdd.Title != this.currentEdit.Title ||
toAdd.Genre != this.currentEdit.Genre ||
toAdd.Length != this.currentEdit.Length)
{
projectController.RemoveSong(this.currentEdit);
projectController.AddSong(toAdd);
dataGridView1.DataSource = projectController.GetSortedSongList(currentSortField, currentSortType);
}
currentEdit = null;
}
/// <summary>
/// Removes the selected songs from the database
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void deleteButton_Click(object sender, EventArgs e)
{
// For each selected row, delete the corresponding song from the database
if (dataGridView1.SelectedRows.Count > 0)
{
foreach (DataGridViewRow row in dataGridView1.SelectedRows)
{
Song toRemove = new Song(row.Cells[0].Value.ToString(),
row.Cells[1].Value.ToString(),
row.Cells[2].Value.ToString(),
row.Cells[3].Value.ToString(),
(int)row.Cells[4].Value);
projectController.RemoveSong(toRemove);
dataGridView1.DataSource = projectController.GetSortedSongList(currentSortField, currentSortType);
}
}
else
{
MessageBox.Show("No songs are selected.");
}
}
/// <summary>
/// Backs up song at the beginning of a cell edit
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
// When owner begins to edit a cell, backup the song that is being edited so we know what to remove from the database
DataGridViewRow row = dataGridView1.Rows[e.RowIndex];
currentEdit = new Song(row.Cells[0].Value.ToString(),
row.Cells[1].Value.ToString(),
row.Cells[2].Value.ToString(),
row.Cells[3].Value.ToString(),
(int)row.Cells[4].Value);
}
/// <summary>
/// Adds a new song to the database
/// </summary>
/// <param name="song">The song to add to the database</param>
public void AddSong(Song song)
{
dataAccess.AddSong(song);
}
/// <summary>
/// Sorts an array of songs
/// </summary>
/// <param name="songsToSort">The songs to sort</param>
/// <param name="field">The song field to sort by</param>
/// <param name="sortType">The type of sort to perform</param>
/// <returns>The sorted list of songs</returns>
private Song[] SortSongs(Song[] songsToSort, SongFields field, SortType sortType)
{
switch (field)
{
case SongFields.Album:
if (sortType == SortType.Ascending)
{
songsToSort = songsToSort.OrderBy(s => s.Album).ThenBy(a => a.Title).ToArray();
}
else
{
songsToSort = songsToSort.OrderByDescending(s => s.Album).ThenByDescending(a => a.Title).ToArray();
}
break;
case SongFields.Artist:
if (sortType == SortType.Ascending)
{
songsToSort = songsToSort.OrderBy(s => s.Artist).ThenBy(a => a.Album).ThenBy(a => a.Title).ToArray();
}
else
{
songsToSort = songsToSort.OrderByDescending(s => s.Artist).ThenByDescending(a => a.Album).ThenByDescending(a => a.Title).ToArray();
}
break;
case SongFields.Genre:
if (sortType == SortType.Ascending)
{
songsToSort = songsToSort.OrderBy(s => s.Genre).ThenBy(a => a.Artist).ThenBy(a => a.Album).ThenBy(a => a.Title).ToArray();
}
else
{
songsToSort = songsToSort.OrderByDescending(s => s.Genre).ThenBy(a => a.Artist).ThenByDescending(a => a.Album).ThenByDescending(a => a.Title).ToArray();
}
break;
case SongFields.Title:
if (sortType == SortType.Ascending)
{
songsToSort = songsToSort.OrderBy(s => s.Title).ThenBy(a => a.Artist).ToArray();
}
else
{
songsToSort = songsToSort.OrderByDescending(s => s.Title).ThenByDescending(a => a.Artist).ToArray();
}
break;
}
return songsToSort;
}
/// <summary>
/// Searches an array of songs
/// </summary>
/// <param name="songsToSearch">The songs to search</param>
/// <param name="searchString">The string to searh for</param>
/// <param name="searchField">The song field to search in</param>
/// <returns>The search results</returns>
private Song[] SearchSongs(Song[] songsToSearch, string searchString, SongFields searchField)
{
switch (searchField)
{
case SongFields.Album:
songsToSearch = songsToSearch.Where(s => s.Album.ToUpper().Contains(searchString.ToUpper())).ToArray();
break;
case SongFields.Artist:
songsToSearch = songsToSearch.Where(s => s.Artist.ToUpper().Contains(searchString.ToUpper())).ToArray();
break;
case SongFields.Genre:
songsToSearch = songsToSearch.Where(s => s.Genre.ToUpper().Contains(searchString.ToUpper())).ToArray();
break;
case SongFields.Title:
songsToSearch = songsToSearch.Where(s => s.Title.ToUpper().Contains(searchString.ToUpper())).ToArray();
break;
}
return songsToSearch;
}
/// <summary>
/// Removes the song from the database
/// </summary>
/// <param name="s">The song to remove from the database</param>
public void RemoveSong(Song s)
{
this.dataAccess.RemoveSong(s);
}
