/// <summary>
/// Handler for when the 'Get Tracks' button is clicked
/// </summary>
private async void GetTracksBtn_Click(object sender, EventArgs e)
{
// Indicate to the user that it is loading by setting the cursor.
Cursor = Cursors.WaitCursor;
// Clear any existing display.
SongDisplayPanel.Controls.Clear();
controlBarPanel.Hide();
RecommendationsLabel.Hide();
CurrentArticleIndex = 0;
// Get results from the recommender.
Dictionary <string, List <FullTrack> > result = await Recommender.GetRecommendedTracks(!UseAllCategories, SelectedCategory);
// Dynamically size the display panel to take up most of the screen.
SongDisplayPanel.Size = new Size(this.Width - 100, this.Height - 350);
// Convert to an array for easy indexing.
Results = result.ToArray();
// Display the current article.
ShowCurrentArticle();
// Reset the cursor.
Cursor = Cursors.Default;
}
/// <summary>
/// Method to handle logic for displaying the current article.
/// </summary>
private void ShowCurrentArticle()
{
// Is the current article index a valid value?
if (CurrentArticleIndex >= 0 && CurrentArticleIndex < Results.Length)
{
// Clear existing display
SongDisplayPanel.Controls.Clear();
// Display it.
DisplayRecommendation(Results[CurrentArticleIndex]);
// Show the container components
controlBarPanel.Show();
RecommendationsLabel.Show();
showingLabel.Text = $"Showing Article {CurrentArticleIndex + 1} of {Results.Length}";
}
else if (CurrentArticleIndex < 0)
{
// The index is below 0, wrap back around to the end.
CurrentArticleIndex = Results.Length - 1;
ShowCurrentArticle();
}
else if (CurrentArticleIndex >= Results.Length)
{
// The index is above the end of the results, wrap back around to the start.
CurrentArticleIndex = 0;
ShowCurrentArticle();
}
}
