master > master: src - cleanup

src/core/calls.py

@@ -22,9 +22,7 @@ __all__ = [
     'GetState',
     'CallValue',
     'CallError',
-    'keep_calm_and_carry_on',
     'run_safely',
-    'to_async',
 ];
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/widgets/function_diagrams.py

@@ -52,6 +52,12 @@ class FunctionDiagramWidget():
     setsfrom: list[list[Any]];
     card: list[int];
 
+    ctrl_nr: widgets.IntSlider;
+    btn_refresh: widgets.ToggleButton;
+    ctrls_card: list[widgets.IntSlider];
+    ctrls_property: list[widgets.IntSlider];
+    fcts: Functions;
+
     def __init__(
         self,
         fnames: list[str],
@@ -60,7 +66,7 @@ class FunctionDiagramWidget():
         N: Optional[int] = None,
     ):
         self.state = None;
-        self.N = N;
+        self.N = N or 1;
         self.N_max = len(fnames);
         assert len(setnames) == len(fnames) + 1, f'The number of sets must be {self.N_max+1}.';
         self.fnames = fnames;
@@ -81,35 +87,23 @@ class FunctionDiagramWidget():
         self.card = [ min(3, len(XX)) for XX in self.setsfrom ];
 
     def run(self):
-        if self.N is None:
+        '''
-            control_nr = widgets.IntSlider(description=f'# Funktionen', min=1, max=self.N_max);
+        Runs the widget.
-            display(control_nr);
+        '''
-        else:
+        self.create_widgets();
-            control_nr = widgets.IntSlider(value=self.N);
+        display(widgets.interactive_output(
-        self.state = widgets.interactive_output(self.handler_wrapper, controls={'N': control_nr});
+            f = self.handler_main,
-        display(self.state);
+            controls = {'N': self.ctrl_nr},
-
+        ));
-    def handler_plot(self, N: int, show_labels: bool, **kwargs):
-        self.card[:(N+1)] = [ kwargs[f'card_{k}'] for k in range(N+1) ];
-        properties = [ option_to_property(kwargs[f'property_{k}']) for k in range(N)];
-        injective = list(map(is_injective, properties));
-        surjective = list(map(is_surjective, properties));
-        X = [ XX[:card] for XX, card in zip(self.setsfrom[:(N+1)], self.card[:(N+1)]) ];
-        comp = Functions(*[
-            Function(
-                name     = (f'{self.fnames[k]}', f'{self.setnames[k]}', f'{self.setnames[k+1]}'),
-                domain   = X[k],
-                codomain = X[k+1],
-                fct      = random_function(X[k], X[k+1], injective=injective[k], surjective=surjective[k], force=False)
-            )
-            for k in range(N)
-        ]);
-        fig, axs = comp.draw(show_labels=show_labels);
         return;
 
-    def handler_wrapper(self, N: int):
+    def create_widgets(self):
-        button_refresh = widgets.ToggleButton(description='Neu laden');
+        '''
-        button_show_labels = widgets.Checkbox(
+        Initialises the widgets.
+        '''
+        N = self.N_max;
+        self.btn_refresh = widgets.ToggleButton(description='Neu laden');
+        self.btn_show_labels = widgets.Checkbox(
             description = 'Labels anzeigen?',
             value = True,
             style       = {
@@ -117,21 +111,31 @@ class FunctionDiagramWidget():
             },
             visible     = True
         );
-        control_nr = widgets.IntSlider(value=N);
+        self.ctrl_nr = widgets.IntSlider(value=self.N, description=f'# Funktionen', min=1, max=self.N_max);
-        controls_card = [
+        cards_max = [ len(XX) for XX in self.setsfrom ];
+        card_max_max = max(cards_max);
+        self.ctrls_card = [
             widgets.IntSlider(
                 value       = card,
                 description = f'|{setname}|',
                 min         = 1,
-                max         = len(XX),
+                max         = card_max,
+                layout = {
+                    'width': 'initial',
+                    # FIXME: scales wrong:
+                    # 'width': f'{100*cards_max/card_max_max}%',
+                },
+            )
+            for setname, XX, card, card_max in zip(
+                self.setnames[:(N+1)],
+                self.setsfrom[:(N+1)],
+                self.card[:(N+1)],
+                cards_max[:(N+1)],
             )
-            for setname, XX, card in zip(self.setnames[:(N+1)], self.setsfrom[:(N+1)], self.card[:(N+1)])
         ];
-
+        self.ctrls_property = [
-        # controls for properties of functions
-        controls_property = [
             widgets.RadioButtons(
-                options     = [ e.value for e in possible_properties(all=True) ],
+                options     = [ e.value for e in possible_properties(self.card[k], self.card[k+1]) ],
                 value       = FunctionProperty.NOTHING.value,
                 layout      = {
                     'description_width': 'initial',
@@ -141,35 +145,28 @@ class FunctionDiagramWidget():
             )
             for k in range(N)
         ];
-        # NOTE: dynamically change the possible properties based on the cardinalities.
+        for k, ctrl_card in enumerate(self.ctrls_card):
-        def update_controls_property(change, k: int):
+            ctrl_card.observe(partial(self.handler_upd_card, k=k), names='value');
-            self.card[k] = change['new'];
+        # FIXME: this does not behave correctly:
-            if k > 0:
+        self.btn_show_labels.observe(partial(self.handler_plot, create=False));
-                m = self.card[k-1];
+        return;
-                n = self.card[k];
-                controls_property[k-1].options = [ e.value for e in possible_properties(m, n) ];
-            if k < N:
-                m = self.card[k];
-                n = self.card[k+1];
-                controls_property[k].options = [ e.value for e in possible_properties(m, n) ];
 
-        for k, control_card in enumerate(controls_card):
+    def handler_main(self, *_, **__):
-            control_card.observe(
+        '''
-                partial(update_controls_property, k=k),
+        Main handler for updating widgets.
-                names='value',
+        '''
-            );
+        N = self.N = self.ctrl_nr.value;
-
+        ui = widgets.VBox([] \
-        ui = widgets.VBox(
+            + [ self.btn_refresh ] \
-            [ button_refresh ] \
+            + [ self.btn_show_labels ] \
-            + [ button_show_labels ] \
+            + [ widgets.Text(f'Größen den Mengen:') ] \
-            + controls_card \
+            + self.ctrls_card[:(N+1)] \
-            + [
+            + [widgets.HBox(
-                widgets.HBox(
                 [
                     widgets.VBox(
                         [
                             widgets.Text(f'Eigenschaften von {fname}'),
-                                control_property
+                            ctrl_property
                         ],
                         layout = {
                             'description_width': 'initial',
@@ -179,21 +176,90 @@ class FunctionDiagramWidget():
                             'overflow': 'hidden',
                         }
                     )
-                        for fname, control_property in zip(self.fnames[:N], controls_property)
+                    for fname, ctrl_property in zip(self.fnames[:N], self.ctrls_property[:N])
-                    ],
-                )
                 ],
+            )],
         );
         display(ui);
         display(widgets.interactive_output(
             f = self.handler_plot,
-            controls = { 'N': control_nr, 'show_labels': button_show_labels } \
+            controls = dict(
-                | { f'card_{k}': controls_card[k] for k in range(N+1) } \
+                N           = self.ctrl_nr,
-                | { f'property_{k}': controls_property[k] for k in range(N) } \
+                refresh     = self.btn_refresh,
-                | { 'refresh': button_refresh }
+                # FIXME: shoud not have to rely on this:
+                show_labels = self.btn_show_labels,
+                **{
+                    f'card[{k}]': ctrl_card
+                    for k, ctrl_card in enumerate(self.ctrls_card)
+                },
+                **{
+                    f'property[{k}]': ctrl_property
+                    for k, ctrl_property in enumerate(self.ctrls_property)
+                },
+            ),
         ));
         return;
 
+    def handler_plot(self, *_, create: bool = True, **__):
+        '''
+        Method to create sets, functions, and plot.
+        '''
+        self.card = [ ctrl_card.value for ctrl_card in self.ctrls_card ];
+        if create:
+            N = self.N;
+            options = list(map(lambda ctrl: ctrl.value, self.ctrls_property[:N]));
+            properties = list(map(option_to_property, options));
+            injective = list(map(is_injective, properties));
+            surjective = list(map(is_surjective, properties));
+            sets = [ XX[:card] for XX, card in zip(self.setsfrom[:(N+1)], self.card[:(N+1)]) ];
+            self.fcts = Functions(*[
+                Function(
+                    name     = (fname, nameX, nameY),
+                    domain   = X,
+                    codomain = Y,
+                    fct      = random_function(X, Y, injective=inj, surjective=surj, force=False),
+                )
+                for fname, nameX, nameY, X, Y, inj, surj in zip(
+                    self.fnames,
+                    self.setnames,
+                    self.setnames[1:],
+                    sets,
+                    sets[1:],
+                    injective,
+                    surjective,
+                )
+            ]);
+        # FIXME:
+        # upon toggling show labels button, this even triggers multiple times,
+        # and only the old value registers.
+        show_labels = self.btn_show_labels.value;
+        fig, axs = self.fcts.draw(show_labels=show_labels);
+        return;
+
+    def handler_upd_card(self, change, k: int):
+        '''
+        Handler for altering function property options
+        upon change of set cardinality.
+        '''
+        self.card[k] = change['new'];
+
+        def upd(j: int):
+            m = self.card[j];
+            n = self.card[j+1];
+            value = self.ctrls_property[j].value;
+            options = [ e.value for e in possible_properties(m, n) ];
+            if value not in options:
+                value = FunctionProperty.NOTHING.value;
+            self.ctrls_property[j].options = options;
+            self.ctrls_property[j].value = value;
+            return;
+
+        if k > 0:
+            upd(k-1);
+        if k < self.N:
+            upd(k);
+        return;
+
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 # AUXILIARY METHODS
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -204,14 +270,20 @@ def option_to_property(option: str) -> Optional[FunctionProperty]:
     except:
         return None;
 
-def possible_properties(m: int = 1, n: int = 1, all: bool = False) -> list[FunctionProperty]:
+def possible_properties(m: int = 1, n: int = 1) -> list[FunctionProperty]:
-    if not all:
+    if m == n:
-        if m == 1 and n == 1:
+        if m == 1:
             return [
                 e for e in FunctionProperty
                 if (is_injective(e) not in [False])
                 and (is_surjective(e) not in [False])
             ];
+        else:
+            return [
+                e for e in FunctionProperty
+                if not (is_surjective(e) in [True] and is_injective(e) in [False])
+                and not (is_surjective(e) in [False] and is_injective(e) in [True])
+            ];
     elif m == 1 and n > 1:
         return [
             e for e in FunctionProperty