diff --git a/examples/simple GUI/__main__.py b/examples/simple GUI/__main__.py new file mode 100644 index 0000000..3cf00d3 --- /dev/null +++ b/examples/simple GUI/__main__.py @@ -0,0 +1,141 @@ +import tkinter as tk +from tkinter import ttk +from functools import partial +from typing import NamedTuple + +import vban_cmd +from vban_cmd import kinds + +class ExampleAppErrors(Exception): + pass + +class App(tk.Tk): + """ Topmost Level of App """ + @classmethod + def make(cls, kind: NamedTuple): + """ + Factory function for App + + Returns an App class of a kind + """ + APP_cls = type(f'App{kind.name}', (cls,), { + 'name': kind.name, + 'ins': kind.ins, + 'outs': kind.outs, + } + ) + return APP_cls + + def __init__(self): + super().__init__() + self.title(f'Voicemeeter{self.name} Example Program') + self.phys_in, self.virt_in = self.ins + self.col = self.phys_in + self.virt_in + self.row = 3 + self.w = {'Basic': 300, 'Banana': 600, 'Potato': 800} + self.h = 150 + self.defaultsizes = { + 'Basic': f'{self.w[self.name]}x{self.h}', + 'Banana': f'{self.w[self.name]}x{self.h}', + 'Potato': f'{self.w[self.name]}x{self.h}', + } + self.geometry(self.defaultsizes[self.name]) + + """ create tkinter variables, generate widgets and configure rows/cols """ + self.gains = { + 'strip': [tk.DoubleVar() for i in range(self.phys_in + self.virt_in)], + } + self.levels = { + 'strip': [tk.DoubleVar() for i in range(self.phys_in + self.virt_in)], + } + [self._make_single_channel(i, j) for i, j in enumerate(i for i in range(0, self.col*2, 2))] + scales = [widget for widget in self.winfo_children() if isinstance(widget, tk.Scale)] + [scale.bind('', partial(self.reset_gain, index=i)) for i, scale in enumerate(scales)] + + """ configure grid """ + self.col_row_configure() + + """ initiate watchers/updaters """ + self.refresh_public_packet() + [self.watch_levels(i) for i in range(self.col)] + + @property + def id_(self): + return 'strip' + + def _make_single_channel(self, i, j): + """ + Creates a label, progressbar, scale, and mute + """ + ttk.Label(self, text=f'{vban.strip[i].label}').grid(column=j, row=0, columnspan=2) + + ttk.Progressbar(self, maximum=72, orient='vertical', mode='determinate', variable=self.levels[self.id_][i]).grid(column=j, row=1) + ttk.Scale(self, from_=12.0, to=-60.0, orient='vertical', variable=self.gains[self.id_][i], + command=partial(self.scale_callback, index=i)).grid(column=j+1, row=1) + + ttk.Button(self, text='MUTE', + command=partial(self.toggle, 'mute', i), style=f'Mute{i}.TButton').grid(column=j, row=2, columnspan=2, sticky=(tk.W, tk.E)) + + def scale_callback(self, *args, index=None): + """ callback function for scale widgets """ + vban.strip[index].gain = self.gains[self.id_][index].get() + + def reset_gain(self, *args, index=None): + """ reset gain to 0 when double click mouse """ + vban.strip[index].gain = 0 + self.gains[self.id_][index].set(0) + + def toggle(self, param, index): + """ toggles a strip parameter """ + setattr(vban.strip[index], param, not getattr(vban.strip[index], param)) + + def col_row_configure(self): + [self.columnconfigure(i, weight=1) for i in range(self.col*2)] + [child.grid_configure(padx=1, pady=1) + for child in self.winfo_children()] + + + """ + The following functions perform background tasks. Importantly the public packet is constantly updated + allowing the vban_cmd interface to fetch updated values. + """ + def refresh_public_packet(self): + self.after(1, self.refresh_public_packet_step) + + def refresh_public_packet_step(self): + """ updates public packet in the background """ + vban.public_packet = vban._get_rt() + self.after(25, self.refresh_public_packet_step) + + def watch_levels(self, i): + self.after(1, self.watch_levels_step, i) + + def watch_levels_step(self, i): + val = vban.strip[i].levels.prefader[0] + vban.strip[i].gain + self.levels[self.id_][i].set((0 if vban.strip[i].mute else 100 + (val-30))) + self.after(20, self.watch_levels_step, i) + + +_apps = {kind.id: App.make(kind) for kind in kinds.all} + +def connect(kind_id: str) -> App: + """ return App of the kind requested """ + try: + APP_cls = _apps[kind_id] + return APP_cls() + except KeyError: + raise ExampleAppErrors(f'Invalid kind: {kind_id}') + + +if __name__ == "__main__": + kind_id = 'banana' + opts = { + # make sure VBAN is configured on remote machine then set IP accordingly + 'ip': 'ws.local', + 'streamname': 'Command1', + 'port': 6990, + } + + with vban_cmd.connect(kind_id, **opts) as vban: + app = connect(kind_id) + app.mainloop()