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.
"""
_top_spacing: int = 10 # px on top of the buttons
_top_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,
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._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._top_spacing - self._top_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._set_grid_tab_by_name(selected_name)
self._tab_dict[self._current_name].grid_forget()
self._current_name = selected_name
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._top_spacing - self._top_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._top_spacing - self._top_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 is not None:
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._bg_color, self._bg_color, self._bg_color, self._bg_color))
def _configure_tab_background_corners_by_name(self, name: str):
""" needs to be called for changes in fg_color, bg_color, border_width """
self._tab_dict[name].configure(background_corner_colors=None)
def _configure_grid(self):
""" create 3 x 4 grid system """
self.grid_rowconfigure(0, weight=0, minsize=self._apply_widget_scaling(self._top_spacing))
self.grid_rowconfigure(1, weight=0, minsize=self._apply_widget_scaling(self._top_button_overhang))
self.grid_rowconfigure(2, weight=0, minsize=self._apply_widget_scaling(self._button_height - self._top_button_overhang))
self.grid_rowconfigure(3, weight=1)
self.grid_columnconfigure(0, weight=1)
def _set_grid_canvas(self):
self._canvas.grid(row=2, rowspan=2, column=0, columnspan=1, sticky="nsew")
def _set_grid_segmented_button(self):
""" needs to be called for changes in corner_radius """
self._segmented_button.grid(row=1, rowspan=2, column=0, columnspan=1, padx=self._apply_widget_scaling(self._corner_radius), sticky="ns")
def _set_grid_tab_by_name(self, name: str):
""" needs to be called for changes in corner_radius, border_width """
self._tab_dict[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)))
def _grid_forget_all_tabs(self):
for frame in self._tab_dict.values():
frame.grid_forget()
def _create_tab(self) -> CTkFrame:
new_tab = CTkFrame(self,
height=0,
width=0,
fg_color=self._fg_color,
border_width=0,
corner_radius=self._corner_radius)
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._top_spacing - self._top_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))
else:
self._canvas.itemconfig("inner_parts",
fill=self._apply_appearance_mode(self._fg_color),
outline=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, cuase canvas does not fill frame
def configure(self, require_redraw=False, **kwargs):
if "corner_radius" in kwargs:
self._corner_radius = kwargs.pop("corner_radius")
require_redraw = True
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)
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 "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 == "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.insert(index, name)
self._tab_dict[name] = self._create_tab()
self._segmented_button.insert(index, name)
self._configure_tab_background_corners_by_name(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_tab_by_name(self._current_name)
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 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 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_tab_by_name(self._current_name)
# 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._grid_forget_all_tabs()
self._set_grid_tab_by_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