import tkinter from typing import Union, Tuple, Dict, List, Callable, Optional from .theme import ThemeManager from .ctk_frame import CTkFrame from .core_rendering import CTkCanvas from .core_rendering import DrawEngine from .core_widget_classes import CTkBaseClass from .ctk_segmented_button import CTkSegmentedButton class CTkTabview(CTkBaseClass): """ Tabview... For detailed information check out the documentation. """ _outer_spacing: int = 10 # px on top or below the button _outer_button_overhang: int = 8 # px _button_height: int = 26 _segmented_button_border_width: int = 3 def __init__(self, master: any, width: int = 300, height: int = 250, corner_radius: Optional[int] = None, border_width: Optional[int] = None, bg_color: Union[str, Tuple[str, str]] = "transparent", fg_color: Optional[Union[str, Tuple[str, str]]] = None, border_color: Optional[Union[str, Tuple[str, str]]] = None, segmented_button_fg_color: Optional[Union[str, Tuple[str, str]]] = None, segmented_button_selected_color: Optional[Union[str, Tuple[str, str]]] = None, segmented_button_selected_hover_color: Optional[Union[str, Tuple[str, str]]] = None, segmented_button_unselected_color: Optional[Union[str, Tuple[str, str]]] = None, segmented_button_unselected_hover_color: Optional[Union[str, Tuple[str, str]]] = None, text_color: Optional[Union[str, Tuple[str, str]]] = None, text_color_disabled: Optional[Union[str, Tuple[str, str]]] = None, command: Union[Callable, None] = None, anchor: str = "center", state: str = "normal", **kwargs): # transfer some functionality to CTkFrame super().__init__(master=master, bg_color=bg_color, width=width, height=height, **kwargs) # color self._border_color = ThemeManager.theme["CTkFrame"]["border_color"] if border_color is None else self._check_color_type(border_color) # determine fg_color of frame if fg_color is None: if isinstance(self.master, (CTkFrame, CTkTabview)): if self.master.cget("fg_color") == ThemeManager.theme["CTkFrame"]["fg_color"]: self._fg_color = ThemeManager.theme["CTkFrame"]["top_fg_color"] else: self._fg_color = ThemeManager.theme["CTkFrame"]["fg_color"] else: self._fg_color = ThemeManager.theme["CTkFrame"]["fg_color"] else: self._fg_color = self._check_color_type(fg_color, transparency=True) # shape self._corner_radius = ThemeManager.theme["CTkFrame"]["corner_radius"] if corner_radius is None else corner_radius self._border_width = ThemeManager.theme["CTkFrame"]["border_width"] if border_width is None else border_width self._anchor = anchor self._canvas = CTkCanvas(master=self, bg=self._apply_appearance_mode(self._bg_color), highlightthickness=0, width=self._apply_widget_scaling(self._desired_width), height=self._apply_widget_scaling(self._desired_height - self._outer_spacing - self._outer_button_overhang)) self._draw_engine = DrawEngine(self._canvas) self._segmented_button = CTkSegmentedButton(self, values=[], height=self._button_height, fg_color=segmented_button_fg_color, selected_color=segmented_button_selected_color, selected_hover_color=segmented_button_selected_hover_color, unselected_color=segmented_button_unselected_color, unselected_hover_color=segmented_button_unselected_hover_color, text_color=text_color, text_color_disabled=text_color_disabled, corner_radius=corner_radius, border_width=self._segmented_button_border_width, command=self._segmented_button_callback, state=state) self._configure_segmented_button_background_corners() self._configure_grid() self._set_grid_canvas() self._tab_dict: Dict[str, CTkFrame] = {} self._name_list: List[str] = [] # list of unique tab names in order of tabs self._current_name: str = "" self._command = command self._draw() def _segmented_button_callback(self, selected_name): self._tab_dict[self._current_name].grid_forget() self._current_name = selected_name self._set_grid_current_tab() if self._command is not None: self._command() def winfo_children(self) -> List[any]: """ winfo_children of CTkTabview without canvas and segmented button widgets, because it's not a child but part of the CTkTabview itself """ child_widgets = super().winfo_children() try: child_widgets.remove(self._canvas) child_widgets.remove(self._segmented_button) return child_widgets except ValueError: return child_widgets def _set_scaling(self, *args, **kwargs): super()._set_scaling(*args, **kwargs) self._canvas.configure(width=self._apply_widget_scaling(self._desired_width), height=self._apply_widget_scaling(self._desired_height - self._outer_spacing - self._outer_button_overhang)) self._configure_grid() self._draw(no_color_updates=True) def _set_dimensions(self, width=None, height=None): super()._set_dimensions(width, height) self._canvas.configure(width=self._apply_widget_scaling(self._desired_width), height=self._apply_widget_scaling(self._desired_height - self._outer_spacing - self._outer_button_overhang)) self._draw() def _configure_segmented_button_background_corners(self): """ needs to be called for changes in fg_color, bg_color """ if self._fg_color == "transparent": self._segmented_button.configure(background_corner_colors=(self._bg_color, self._bg_color, self._bg_color, self._bg_color)) else: if self._anchor.lower() in ("center", "w", "nw", "n", "ne", "e", "e"): self._segmented_button.configure(background_corner_colors=(self._bg_color, self._bg_color, self._fg_color, self._fg_color)) else: self._segmented_button.configure(background_corner_colors=(self._fg_color, self._fg_color, self._bg_color, self._bg_color)) def _configure_grid(self): """ create 3 x 4 grid system """ if self._anchor.lower() in ("center", "w", "nw", "n", "ne", "e", "e"): self.grid_rowconfigure(0, weight=0, minsize=self._apply_widget_scaling(self._outer_spacing)) self.grid_rowconfigure(1, weight=0, minsize=self._apply_widget_scaling(self._outer_button_overhang)) self.grid_rowconfigure(2, weight=0, minsize=self._apply_widget_scaling(self._button_height - self._outer_button_overhang)) self.grid_rowconfigure(3, weight=1) else: self.grid_rowconfigure(0, weight=1) self.grid_rowconfigure(1, weight=0, minsize=self._apply_widget_scaling(self._button_height - self._outer_button_overhang)) self.grid_rowconfigure(2, weight=0, minsize=self._apply_widget_scaling(self._outer_button_overhang)) self.grid_rowconfigure(3, weight=0, minsize=self._apply_widget_scaling(self._outer_spacing)) self.grid_columnconfigure(0, weight=1) def _set_grid_canvas(self): if self._anchor.lower() in ("center", "w", "nw", "n", "ne", "e", "e"): self._canvas.grid(row=2, rowspan=2, column=0, columnspan=1, sticky="nsew") else: self._canvas.grid(row=0, rowspan=2, column=0, columnspan=1, sticky="nsew") def _set_grid_segmented_button(self): """ needs to be called for changes in corner_radius, anchor """ if self._anchor.lower() in ("center", "n", "s"): self._segmented_button.grid(row=1, rowspan=2, column=0, columnspan=1, padx=self._apply_widget_scaling(self._corner_radius), sticky="ns") elif self._anchor.lower() in ("nw", "w", "sw"): self._segmented_button.grid(row=1, rowspan=2, column=0, columnspan=1, padx=self._apply_widget_scaling(self._corner_radius), sticky="nsw") elif self._anchor.lower() in ("ne", "e", "se"): self._segmented_button.grid(row=1, rowspan=2, column=0, columnspan=1, padx=self._apply_widget_scaling(self._corner_radius), sticky="nse") def _set_grid_current_tab(self): """ needs to be called for changes in corner_radius, border_width """ if self._anchor.lower() in ("center", "w", "nw", "n", "ne", "e", "e"): self._tab_dict[self._current_name].grid(row=3, column=0, sticky="nsew", padx=self._apply_widget_scaling(max(self._corner_radius, self._border_width)), pady=self._apply_widget_scaling(max(self._corner_radius, self._border_width))) else: self._tab_dict[self._current_name].grid(row=0, column=0, sticky="nsew", padx=self._apply_widget_scaling(max(self._corner_radius, self._border_width)), pady=self._apply_widget_scaling(max(self._corner_radius, self._border_width))) def _grid_forget_all_tabs(self, exclude_name=None): for name, frame in self._tab_dict.items(): if name != exclude_name: frame.grid_forget() def _create_tab(self) -> CTkFrame: new_tab = CTkFrame(self, height=0, width=0, border_width=0, corner_radius=0) if self._fg_color == "transparent": new_tab.configure(fg_color=self._apply_appearance_mode(self._bg_color), bg_color=self._apply_appearance_mode(self._bg_color)) else: new_tab.configure(fg_color=self._apply_appearance_mode(self._fg_color), bg_color=self._apply_appearance_mode(self._fg_color)) return new_tab def _draw(self, no_color_updates: bool = False): super()._draw(no_color_updates) if not self._canvas.winfo_exists(): return requires_recoloring = self._draw_engine.draw_rounded_rect_with_border(self._apply_widget_scaling(self._current_width), self._apply_widget_scaling(self._current_height - self._outer_spacing - self._outer_button_overhang), self._apply_widget_scaling(self._corner_radius), self._apply_widget_scaling(self._border_width)) if no_color_updates is False or requires_recoloring: if self._fg_color == "transparent": self._canvas.itemconfig("inner_parts", fill=self._apply_appearance_mode(self._bg_color), outline=self._apply_appearance_mode(self._bg_color)) for tab in self._tab_dict.values(): tab.configure(fg_color=self._apply_appearance_mode(self._bg_color), bg_color=self._apply_appearance_mode(self._bg_color)) else: self._canvas.itemconfig("inner_parts", fill=self._apply_appearance_mode(self._fg_color), outline=self._apply_appearance_mode(self._fg_color)) for tab in self._tab_dict.values(): tab.configure(fg_color=self._apply_appearance_mode(self._fg_color), bg_color=self._apply_appearance_mode(self._fg_color)) self._canvas.itemconfig("border_parts", fill=self._apply_appearance_mode(self._border_color), outline=self._apply_appearance_mode(self._border_color)) self._canvas.configure(bg=self._apply_appearance_mode(self._bg_color)) tkinter.Frame.configure(self, bg=self._apply_appearance_mode(self._bg_color)) # configure bg color of tkinter.Frame, cause canvas does not fill frame def configure(self, require_redraw=False, **kwargs): if "corner_radius" in kwargs: self._corner_radius = kwargs.pop("corner_radius") self._set_grid_segmented_button() self._set_grid_current_tab() self._set_grid_canvas() self._configure_segmented_button_background_corners() self._segmented_button.configure(corner_radius=self._corner_radius) if "border_width" in kwargs: self._border_width = kwargs.pop("border_width") require_redraw = True if "fg_color" in kwargs: self._fg_color = self._check_color_type(kwargs.pop("fg_color"), transparency=True) self._configure_segmented_button_background_corners() require_redraw = True if "border_color" in kwargs: self._border_color = self._check_color_type(kwargs.pop("border_color")) require_redraw = True if "segmented_button_fg_color" in kwargs: self._segmented_button.configure(fg_color=kwargs.pop("segmented_button_fg_color")) if "segmented_button_selected_color" in kwargs: self._segmented_button.configure(selected_color=kwargs.pop("segmented_button_selected_color")) if "segmented_button_selected_hover_color" in kwargs: self._segmented_button.configure(selected_hover_color=kwargs.pop("segmented_button_selected_hover_color")) if "segmented_button_unselected_color" in kwargs: self._segmented_button.configure(unselected_color=kwargs.pop("segmented_button_unselected_color")) if "segmented_button_unselected_hover_color" in kwargs: self._segmented_button.configure(unselected_hover_color=kwargs.pop("segmented_button_unselected_hover_color")) if "text_color" in kwargs: self._segmented_button.configure(text_color=kwargs.pop("text_color")) if "text_color_disabled" in kwargs: self._segmented_button.configure(text_color_disabled=kwargs.pop("text_color_disabled")) if "command" in kwargs: self._command = kwargs.pop("command") if "anchor" in kwargs: self._anchor = kwargs.pop("anchor") self._configure_grid() self._set_grid_segmented_button() if "state" in kwargs: self._segmented_button.configure(state=kwargs.pop("state")) super().configure(require_redraw=require_redraw, **kwargs) def cget(self, attribute_name: str): if attribute_name == "corner_radius": return self._corner_radius elif attribute_name == "border_width": return self._border_width elif attribute_name == "fg_color": return self._fg_color elif attribute_name == "border_color": return self._border_color elif attribute_name == "segmented_button_fg_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "segmented_button_selected_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "segmented_button_selected_hover_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "segmented_button_unselected_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "segmented_button_unselected_hover_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "text_color": return self._segmented_button.cget(attribute_name) elif attribute_name == "text_color_disabled": return self._segmented_button.cget(attribute_name) elif attribute_name == "command": return self._command elif attribute_name == "anchor": return self._anchor elif attribute_name == "state": return self._segmented_button.cget(attribute_name) else: return super().cget(attribute_name) def tab(self, name: str) -> CTkFrame: """ returns reference to the tab with given name """ if name in self._tab_dict: return self._tab_dict[name] else: raise ValueError(f"CTkTabview has no tab named '{name}'") def insert(self, index: int, name: str) -> CTkFrame: """ creates new tab with given name at position index """ if name not in self._tab_dict: # if no tab exists, set grid for segmented button if len(self._tab_dict) == 0: self._set_grid_segmented_button() self._name_list.append(name) self._tab_dict[name] = self._create_tab() self._segmented_button.insert(index, name) # if created tab is only tab select this tab if len(self._tab_dict) == 1: self._current_name = name self._segmented_button.set(self._current_name) self._grid_forget_all_tabs() self._set_grid_current_tab() return self._tab_dict[name] else: raise ValueError(f"CTkTabview already has tab named '{name}'") def add(self, name: str) -> CTkFrame: """ appends new tab with given name """ return self.insert(len(self._tab_dict), name) def index(self, name) -> int: """ get index of tab with given name """ return self._segmented_button.index(name) def move(self, new_index: int, name: str): if 0 <= new_index < len(self._name_list): if name in self._tab_dict: self._segmented_button.move(new_index, name) else: raise ValueError(f"CTkTabview has no name '{name}'") else: raise ValueError(f"CTkTabview new_index {new_index} not in range of name list with len {len(self._name_list)}") def rename(self, old_name: str, new_name: str): if new_name in self._name_list: raise ValueError(f"new_name '{new_name}' already exists") # segmented button old_index = self._segmented_button.index(old_name) self._segmented_button.delete(old_name) self._segmented_button.insert(old_index, new_name) # name list self._name_list.remove(old_name) self._name_list.append(new_name) # tab dictionary self._tab_dict[new_name] = self._tab_dict.pop(old_name) def delete(self, name: str): """ delete tab by name """ if name in self._tab_dict: self._name_list.remove(name) self._tab_dict[name].grid_forget() self._tab_dict.pop(name) self._segmented_button.delete(name) # set current_name to '' and remove segmented button if no tab is left if len(self._name_list) == 0: self._current_name = "" self._segmented_button.grid_forget() # if only one tab left, select this tab elif len(self._name_list) == 1: self._current_name = self._name_list[0] self._segmented_button.set(self._current_name) self._grid_forget_all_tabs() self._set_grid_current_tab() # more tabs are left else: # if current_name is deleted tab, select first tab at position 0 if self._current_name == name: self.set(self._name_list[0]) else: raise ValueError(f"CTkTabview has no tab named '{name}'") def set(self, name: str): """ select tab by name """ if name in self._tab_dict: self._current_name = name self._segmented_button.set(name) self._set_grid_current_tab() self.after(100, lambda: self._grid_forget_all_tabs(exclude_name=name)) else: raise ValueError(f"CTkTabview has no tab named '{name}'") def get(self) -> str: """ returns name of selected tab, returns empty string if no tab selected """ return self._current_name