/// <summary>
/// Event handler for individual miniGrid (holding 1-4 sounds) in mastergrid
/// </summary>
void OnMiniGridTapped(MiniGrid miniGrid)
{
Instrument selectedInstrument = selectedInstrButton.Instrument;
// Changes UI represenation and returns new set of colors on this grid
bool added = miniGrid.ToggleColor(selectedInstrument.color);
// If sidebar color isn't part of button's new set of colors, remove it
Instrument.Note toggledNote = selectedInstrument.AtPitch(miniGrid.semitoneShift);
//If sidebar button color = clicked button color
if (added)
{
song.AddNote(toggledNote, Grid.GetColumn(miniGrid)); // Add the note
if (!player.IsPlaying)
{
SingleNotePlayer.PlayNote(selectedInstrument.AtPitch(miniGrid.semitoneShift)); // Play note so long as not already playing a song
}
}
else
{
song.RemoveNote(toggledNote, Grid.GetColumn(miniGrid));
}
//Undo clear stops woking when user adds stuff to grid so they don't accidentally undo clear
clearedSong = null;
loadedSongChanged = true; // If song is empty, no need to worry about changes, otherwise
}
/// <summary>
/// Event handler for the more options button. Sends user to more options page.
/// </summary>
async void OnMoreOptionsClicked(object sender, EventArgs e)
{
if (player.IsPlaying)
{
StopPlayingSong();
}
SingleNotePlayer.StopPlayingNote();
await Navigation.PushAsync(new MoreOptionsPage(this));
}
/// <summary>
/// Event handler for buttons in the sidebar
/// </summary>
void OnSidebarClicked(object sender, EventArgs e)
{
InstrumentButton button = (InstrumentButton)sender;
if (!player.IsPlaying) // So long as the music isn't currently playing, the sidebar buttons play their sound when clicked
{
SingleNotePlayer.PlayNote(button.Instrument.AtPitch(0));
}
if (button != selectedInstrButton)
{
SetSelectedSidebarButton(button);
}
}
/// <summary>
/// Starts playing the song
/// </summary>
private void StartPlayingSong()
{
stepgrid.Children.Add(highlights[0], 0, 0);
Grid.SetRowSpan(highlights[0], highlight2StartRow);
stepgrid.Children.Add(highlights[1], 0, highlight2StartRow);
Grid.SetRowSpan(highlights[1], NumRows - highlight2StartRow);
player.BeginPlaying(song);
//We call this after BeginPlaying because we know no more notes will try to play.
//If we did it before, the user could theoretically start a note playing in between StopPlayingNote and BeginPlaying and it
//wouldn't be stopped
SingleNotePlayer.StopPlayingNote();
playStopButton.Image = stopImageName;
}
/// <summary>
/// Event handler for instrument slots (currently selected instruments)
/// </summary>
/// <param name="sender">Sender.</param>
/// <param name="e">E.</param>
public void OnSlotClicked(Object sender, EventArgs e)
{
InstrumentButton slotClicked = (InstrumentButton)sender;
SingleNotePlayer.PlayNote(slotClicked.Instrument.AtPitch(0));
if (slotClicked.Selected == false)
{
slotClicked.Selected = true; // Slot we just clicked is highlighted
selectedSlot.Selected = false; // Previously highlighted slot is de-highlighted
selectedSlot = slotClicked; // Update selectedSlot
}
}
/// <summary>
/// Event handler for the Instrument Buttons
/// </summary>
/// <param name="sender">Sender.</param>
/// <param name="e">E.</param>
public void OnInstrumentClicked(Object sender, EventArgs e)
{
InstrumentButton clickedButton = (InstrumentButton)sender;
SingleNotePlayer.PlayNote(clickedButton.Instrument.AtPitch(0));
if (!selectedInstruments.Contains(clickedButton.Instrument))
{
selectedInstruments.Remove(selectedSlot.Instrument); // Remove current instrument from list of instruments selected
selectedSlot.Instrument = clickedButton.Instrument; // Set slot to hold the new instrument
selectedInstruments.Add(selectedSlot.Instrument); // Update the list of colors selected
doneButton.TextColor = Color.White; // Make sure cancel button is no longer gray
}
}
/// <summary>
/// Returns to main page.
/// </summary>
async void ReturnToMainPage()
{
Device.BeginInvokeOnMainThread(delegate
{
foreach (InstrumentButton btn in mainpage.instrumentButtons)
{
if (btn.Instrument == selectedSlot.Instrument)
{
mainpage.SetSelectedSidebarButton(btn);
break;
}
}
});
SingleNotePlayer.StopPlayingNote();
await Navigation.PopToRootAsync();
}
/// <summary>
/// Returns to MoreOptions page.
/// </summary>
async void ReturnToMoreOptionsPage()
{
SingleNotePlayer.StopPlayingNote();
await Navigation.PopAsync();
}
