def load_session(self):
"""
Loads session... builds View dictionary and Router; fetches data needed for plots
"""
wavefile_path = tkFileDialog.askopenfilename(filetypes=[('Wave', '*.wav')])
try:
self.model = Model(wavefile_path)
except (EOFError, lsa.LibrosaError, lsa.ParameterError):
message = "Sorry, Simple Audio Analyzer cannot open this .wav file. File is corrupt " \
"or contains incorrect data"
tkMessageBox.showerror("File Error",message=message)
self.router = Router(self.model)
self.__build_frames()
self.show_frame('WaveView')
def load_object(self):
"""
Loads the data from a .sesh picklecached object. Handles file errors.
"""
filename = tkFileDialog.askopenfilename(defaultextension='.sesh', filetypes=[('Session', '*.sesh')])
with open(filename, 'r') as infile:
try:
data = pickle.load(infile)
self.model = Model() # create a new Model & Router
self.router = Router(self.model)
self.model.set_all_data(data) # set model data
except Exception:
message = "There was an error loading the .sesh file. Object data is either corrupt" \
" or improperly formatted."
tkMessageBox.showerror("Load Error", message=message)
self.__build_frames() # build the frames and show
self.show_frame('WaveView')
class Controller(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.model = None
self.router = None
self.frames = {}
# Build main Window
self.container = tk.Frame(self)
self.container.pack(side="top", fill="both", expand=True)
self.container.grid_rowconfigure(0, weight=1)
self.container.grid_columnconfigure(0, weight=1)
# Build menu
menubar_parent = tk.Menu(self)
menubar = TopMenu(menubar_parent, self)
# make StartView -- only shown on program init
start = StartView(self.container, self)
self.frames['StartView'] = start
self.show_frame('StartView')
def show_frame(self, container_name):
frame = self.frames[container_name]
frame.tkraise()
def load_session(self):
"""
Loads session... builds View dictionary and Router; fetches data needed for plots
"""
wavefile_path = tkFileDialog.askopenfilename(filetypes=[('Wave', '*.wav')])
try:
self.model = Model(wavefile_path)
except (EOFError, lsa.LibrosaError, lsa.ParameterError):
message = "Sorry, Simple Audio Analyzer cannot open this .wav file. File is corrupt " \
"or contains incorrect data"
tkMessageBox.showerror("File Error",message=message)
self.router = Router(self.model)
self.__build_frames()
self.show_frame('WaveView')
def export_data(self):
"""
exports and saves a JSON file.
"""
data = self.fetch_data('all')
for k, i in data.iteritems(): # convert to normal list for json
if 'numpy' in str(type(i)):
data[k] = data[k].tolist()
filename = tkFileDialog.asksaveasfilename(defaultextension='.json')
with open(filename, 'w') as outfile:
json.dump(data, outfile)
def save_object(self):
"""
Pickles the data object from Model and saves as a .sesh file
"""
data = self.fetch_data('all')
# only saves and loads *.sesh files
filename = tkFileDialog.asksaveasfilename(defaultextension='.sesh', filetypes=[('Session', '*.sesh')])
with open(filename, 'w') as outfile:
pickle.dump(data, outfile)
print "Session stored: " + os.path.realpath(filename)
def load_object(self):
"""
Loads the data from a .sesh picklecached object. Handles file errors.
"""
filename = tkFileDialog.askopenfilename(defaultextension='.sesh', filetypes=[('Session', '*.sesh')])
with open(filename, 'r') as infile:
try:
data = pickle.load(infile)
self.model = Model() # create a new Model & Router
self.router = Router(self.model)
self.model.set_all_data(data) # set model data
except Exception:
message = "There was an error loading the .sesh file. Object data is either corrupt" \
" or improperly formatted."
tkMessageBox.showerror("Load Error", message=message)
self.__build_frames() # build the frames and show
self.show_frame('WaveView')
def fetch_data(self, data_key_name): # data key name as string
"""
possible strings: all, raw, const_q, onset, mel, stft
"""
# probably needs some error handling either here or in the router
return self.router.request(data_key_name)
def exit(self):
"""
gracefully exit via file menu
"""
self.quit()
def about(self):
"""
displays the About Message Box
"""
about_message = """
written by J.DeBlase, 2015...This application is free to download use and share.\n
Special thanks to the development team at librosa and Stanford MIR.
"""
tkMessageBox.showinfo("Analysis Help", about_message)
def help(self):
"""
displays the github Readme page
"""
try:
webbrowser.open("https://github.com/bsnacks000/Simple_Audio_Analyzer", new=2)
except webbrowser.Error:
message = "Browser Control Error: Could not connect to README.md"
tkMessageBox.showerror("Browser Error", message=message)
def __build_frames(self):
for View in (WaveView, MelView, ConstqView, OnsetView): # build views AFTER model/router is built
frame = View(self.container, self)
self.frames[frame.__repr__()] = frame
frame.grid(row=0, column=0, sticky="nsew")