public ChordFinderViewModel()
{
Options = new ChordFinderOptions(AppVM.UserConfig);
Style = new ChordFinderStyle(AppVM.UserConfig);
RefreshInstruments(Options.Instrument, Options.Tuning);
RefreshChordQualities(Options.ChordQuality);
Results = new ObservableCollection <ObservableDiagram>();
SelectedResults = new ObservableCollection <ObservableDiagram>();
SelectedResults.CollectionChanged += SelectedResults_CollectionChanged;
}
/// <summary>
/// Call from JQuery to find the chords.
/// </summary>
/// <param name="instrument">The instrument.</param>
/// <param name="tuning">The tuning.</param>
/// <param name="notes">The root note for the chord.</param>
/// <param name="chordQualities">The chord qualities.</param>
/// <param name="numFrets">The number of frets to display.</param>
/// <param name="maxFrets">The maximum number of frets to use.</param>
/// <param name="maxReach">The maximum fret reach for the fingers.</param>
/// <param name="autoAddBarres">Auto add barres?</param>
/// <param name="allowOpenStrings">Allow open strings?</param>
/// <param name="allowMutedStrings">Allow muted strings?</param>
/// <param name="mirrorResults">Mirror the results for left-handed chords?</param>
/// <param name="allowRootlessChords">Allow rootless chords?</param>
/// <returns>List of SVG images to display in the UI.</returns>
public JsonResult FindChords(string instrument, string tuning, string notes, string chordQualities, string numFrets, string maxFrets, string maxReach, string autoAddBarres, string allowOpenStrings, string allowMutedStrings, string mirrorResults, string allowRootlessChords)
{
// Initialize the ConfigFile object.
InitConfig();
// Define the objects.
Instrument Instrument = null;
ChordQuality ChordQuality = null;
ChordFinderOptions myOptions = null;
ChordFinder chordFinder = null;
ChordResultSet chordResultSet = null;
ChordOptions chordOptions = null;
Tuning Tuning = null;
Note myNote = NoteUtils.ParseNote(notes);
Instrument = GetAnInstrument(instrument);
ChordQuality = GetChordQuality(chordQualities);
if (Instrument != null)
{
// Instantiate the selected tuning object from the instrument.
Tuning = GetTheTuning(Instrument, tuning);
// Instantiate the chord finder options.
myOptions = BuildChordFinderOptions(instrument, tuning, numFrets, maxFrets, maxReach, autoAddBarres, allowOpenStrings, allowMutedStrings, mirrorResults, allowRootlessChords);
// Instantiate the chord finder object.
chordFinder = new ChordFinder(Instrument, Tuning);
// Instantiate the chord result set.
chordResultSet = chordFinder.FindChords(myNote, ChordQuality, myOptions);
// Instantiate the chord options.
chordOptions = BuildChordOptions();
// Build the list of SVG images to return to the screen.
return(Json(BuildSVGList(chordResultSet, chordOptions), JsonRequestBehavior.AllowGet));
}
else
{
// The instrument doesn't exist.
return(Json(String.Empty, JsonRequestBehavior.AllowGet));
}
}
/// <summary>
/// Builds the chord finder options with the parameters passed in.
/// </summary>
/// <param name="instrument">The instrument name.</param>
/// <param name="tuning">The tuning for the instrument.</param>
/// <param name="numFrets">The number of frets.</param>
/// <param name="maxFrets">The maximum number of frets.</param>
/// <param name="maxReach">The maximum reach of the fingers.</param>
/// <param name="autoAddBarres">Auto add barres?</param>
/// <param name="allowOpenStrings">Allow open strings?</param>
/// <param name="allowMutedStrings">Allow muted strings?</param>
/// <param name="mirrorResults">Mirror the results for left-handed chords?</param>
/// <param name="allowRootlessChords">Allow rootless chords?</param>
/// <returns>The chord finder object.</returns>
private ChordFinderOptions BuildChordFinderOptions(string instrument, string tuning, string numFrets, string maxFrets, string maxReach, string autoAddBarres, string allowOpenStrings, string allowMutedStrings, string mirrorResults, string allowRootlessChords)
{
int myNumFrets = 5;
int myMaxFrets = 12;
int myMaxReach = 4;
bool myAutoAddBarres = true;
bool myAllowOpenStrings = true;
bool myAllowMutedStrings = true;
bool myAllowRootlessChords = false;
bool myMirrorResults = false;
Int32.TryParse(numFrets, out myNumFrets);
Int32.TryParse(maxFrets, out myMaxFrets);
Int32.TryParse(maxReach, out myMaxReach);
bool.TryParse(autoAddBarres, out myAutoAddBarres);
bool.TryParse(allowOpenStrings, out myAllowOpenStrings);
bool.TryParse(allowMutedStrings, out myAllowMutedStrings);
bool.TryParse(allowRootlessChords, out myAllowRootlessChords);
bool.TryParse(mirrorResults, out myMirrorResults);
ChordFinderOptions myOptions = new ChordFinderOptions(myNumFrets, myMaxFrets, myMaxReach, myAutoAddBarres, myAllowOpenStrings, myAllowMutedStrings, myAllowRootlessChords, myMirrorResults);
return(myOptions);
}
