448 lines
20 KiB
Python
448 lines
20 KiB
Python
import tkinter
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import copy
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from typing import Union, Tuple, List, Dict, Callable, Optional
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try:
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from typing import Literal
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except ImportError:
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from typing_extensions import Literal
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from .theme import ThemeManager
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from .font import CTkFont
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from .ctk_button import CTkButton
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from .ctk_frame import CTkFrame
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from .utility import check_kwargs_empty
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class CTkSegmentedButton(CTkFrame):
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"""
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Segmented button with corner radius, border width, variable support.
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For detailed information check out the documentation.
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"""
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def __init__(self,
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master: any,
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width: int = 140,
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height: int = 28,
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corner_radius: Optional[int] = None,
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border_width: int = 3,
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bg_color: Union[str, Tuple[str, str]] = "transparent",
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fg_color: Optional[Union[str, Tuple[str, str]]] = None,
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selected_color: Optional[Union[str, Tuple[str, str]]] = None,
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selected_hover_color: Optional[Union[str, Tuple[str, str]]] = None,
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unselected_color: Optional[Union[str, Tuple[str, str]]] = None,
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unselected_hover_color: Optional[Union[str, Tuple[str, str]]] = None,
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text_color: Optional[Union[str, Tuple[str, str]]] = None,
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text_color_disabled: Optional[Union[str, Tuple[str, str]]] = None,
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background_corner_colors: Union[Tuple[Union[str, Tuple[str, str]]], None] = None,
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font: Optional[Union[tuple, CTkFont]] = None,
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values: Optional[list] = None,
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variable: Union[tkinter.Variable, None] = None,
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dynamic_resizing: bool = True,
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command: Union[Callable[[str], None], None] = None,
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state: str = "normal"):
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super().__init__(master=master, bg_color=bg_color, width=width, height=height)
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self._sb_fg_color = ThemeManager.theme["CTkSegmentedButton"]["fg_color"] if fg_color is None else self._check_color_type(fg_color)
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self._sb_selected_color = ThemeManager.theme["CTkSegmentedButton"]["selected_color"] if selected_color is None else self._check_color_type(selected_color)
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self._sb_selected_hover_color = ThemeManager.theme["CTkSegmentedButton"]["selected_hover_color"] if selected_hover_color is None else self._check_color_type(selected_hover_color)
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self._sb_unselected_color = ThemeManager.theme["CTkSegmentedButton"]["unselected_color"] if unselected_color is None else self._check_color_type(unselected_color)
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self._sb_unselected_hover_color = ThemeManager.theme["CTkSegmentedButton"]["unselected_hover_color"] if unselected_hover_color is None else self._check_color_type(unselected_hover_color)
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self._sb_text_color = ThemeManager.theme["CTkSegmentedButton"]["text_color"] if text_color is None else self._check_color_type(text_color)
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self._sb_text_color_disabled = ThemeManager.theme["CTkSegmentedButton"]["text_color_disabled"] if text_color_disabled is None else self._check_color_type(text_color_disabled)
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self._sb_corner_radius = ThemeManager.theme["CTkSegmentedButton"]["corner_radius"] if corner_radius is None else corner_radius
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self._sb_border_width = ThemeManager.theme["CTkSegmentedButton"]["border_width"] if border_width is None else border_width
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self._background_corner_colors = background_corner_colors # rendering options for DrawEngine
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self._command: Callable[[str], None] = command
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self._font = CTkFont() if font is None else font
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self._state = state
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self._buttons_dict: Dict[str, CTkButton] = {} # mapped from value to button object
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if values is None:
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self._value_list: List[str] = ["CTkSegmentedButton"]
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else:
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self._value_list: List[str] = values # Values ordered like buttons rendered on widget
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self._dynamic_resizing = dynamic_resizing
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if not self._dynamic_resizing:
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self.grid_propagate(False)
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self._check_unique_values(self._value_list)
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self._current_value: str = ""
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if len(self._value_list) > 0:
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self._create_buttons_from_values()
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self._create_button_grid()
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self._variable = variable
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self._variable_callback_blocked: bool = False
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self._variable_callback_name: Union[str, None] = None
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if self._variable is not None:
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self._variable_callback_name = self._variable.trace_add("write", self._variable_callback)
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self.set(self._variable.get(), from_variable_callback=True)
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super().configure(corner_radius=self._sb_corner_radius, fg_color="transparent")
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def destroy(self):
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if self._variable is not None: # remove old callback
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self._variable.trace_remove("write", self._variable_callback_name)
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super().destroy()
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def _set_dimensions(self, width: int = None, height: int = None):
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super()._set_dimensions(width, height)
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for button in self._buttons_dict.values():
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button.configure(height=height)
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def _variable_callback(self, var_name, index, mode):
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if not self._variable_callback_blocked:
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self.set(self._variable.get(), from_variable_callback=True)
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def _get_index_by_value(self, value: str):
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for index, value_from_list in enumerate(self._value_list):
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if value_from_list == value:
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return index
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raise ValueError(f"CTkSegmentedButton does not contain value '{value}'")
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def _configure_button_corners_for_index(self, index: int):
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if index == 0 and len(self._value_list) == 1:
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if self._background_corner_colors is None:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._bg_color, self._bg_color, self._bg_color, self._bg_color))
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else:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=self._background_corner_colors)
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elif index == 0:
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if self._background_corner_colors is None:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._bg_color, self._sb_fg_color, self._sb_fg_color, self._bg_color))
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else:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._background_corner_colors[0], self._sb_fg_color, self._sb_fg_color, self._background_corner_colors[3]))
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elif index == len(self._value_list) - 1:
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if self._background_corner_colors is None:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._sb_fg_color, self._bg_color, self._bg_color, self._sb_fg_color))
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else:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._sb_fg_color, self._background_corner_colors[1], self._background_corner_colors[2], self._sb_fg_color))
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else:
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self._buttons_dict[self._value_list[index]].configure(background_corner_colors=(self._sb_fg_color, self._sb_fg_color, self._sb_fg_color, self._sb_fg_color))
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def _unselect_button_by_value(self, value: str):
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if value in self._buttons_dict:
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self._buttons_dict[value].configure(fg_color=self._sb_unselected_color,
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hover_color=self._sb_unselected_hover_color)
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def _select_button_by_value(self, value: str):
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if self._current_value is not None and self._current_value != "":
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self._unselect_button_by_value(self._current_value)
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self._current_value = value
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self._buttons_dict[value].configure(fg_color=self._sb_selected_color,
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hover_color=self._sb_selected_hover_color)
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def _create_button(self, index: int, value: str) -> CTkButton:
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new_button = CTkButton(self,
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width=0,
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height=self._current_height,
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corner_radius=self._sb_corner_radius,
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border_width=self._sb_border_width,
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fg_color=self._sb_unselected_color,
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border_color=self._sb_fg_color,
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hover_color=self._sb_unselected_hover_color,
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text_color=self._sb_text_color,
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text_color_disabled=self._sb_text_color_disabled,
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text=value,
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font=self._font,
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state=self._state,
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command=lambda v=value: self.set(v, from_button_callback=True),
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background_corner_colors=None,
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round_width_to_even_numbers=False,
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round_height_to_even_numbers=False) # DrawEngine rendering option (so that theres no gap between buttons)
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return new_button
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@staticmethod
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def _check_unique_values(values: List[str]):
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""" raises exception if values are not unique """
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if len(values) != len(set(values)):
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raise ValueError("CTkSegmentedButton values are not unique")
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def _create_button_grid(self):
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# remove minsize from every grid cell in the first row
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number_of_columns, _ = self.grid_size()
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for n in range(number_of_columns):
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self.grid_columnconfigure(n, weight=1, minsize=0)
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self.grid_rowconfigure(0, weight=1)
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for index, value in enumerate(self._value_list):
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self.grid_columnconfigure(index, weight=1, minsize=self._current_height)
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self._buttons_dict[value].grid(row=0, column=index, sticky="nsew")
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def _create_buttons_from_values(self):
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assert len(self._buttons_dict) == 0
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assert len(self._value_list) > 0
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for index, value in enumerate(self._value_list):
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self._buttons_dict[value] = self._create_button(index, value)
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self._configure_button_corners_for_index(index)
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def configure(self, **kwargs):
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if "width" in kwargs:
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super().configure(width=kwargs.pop("width"))
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if "height" in kwargs:
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super().configure(height=kwargs.pop("height"))
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if "corner_radius" in kwargs:
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self._sb_corner_radius = kwargs.pop("corner_radius")
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super().configure(corner_radius=self._sb_corner_radius)
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for button in self._buttons_dict.values():
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button.configure(corner_radius=self._sb_corner_radius)
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if "border_width" in kwargs:
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self._sb_border_width = kwargs.pop("border_width")
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for button in self._buttons_dict.values():
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button.configure(border_width=self._sb_border_width)
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if "bg_color" in kwargs:
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super().configure(bg_color=kwargs.pop("bg_color"))
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if len(self._buttons_dict) > 0:
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self._configure_button_corners_for_index(0)
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if len(self._buttons_dict) > 1:
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max_index = len(self._buttons_dict) - 1
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self._configure_button_corners_for_index(max_index)
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if "fg_color" in kwargs:
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self._sb_fg_color = self._check_color_type(kwargs.pop("fg_color"))
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for index, button in enumerate(self._buttons_dict.values()):
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button.configure(border_color=self._sb_fg_color)
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self._configure_button_corners_for_index(index)
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if "selected_color" in kwargs:
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self._sb_selected_color = self._check_color_type(kwargs.pop("selected_color"))
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if self._current_value in self._buttons_dict:
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self._buttons_dict[self._current_value].configure(fg_color=self._sb_selected_color)
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if "selected_hover_color" in kwargs:
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self._sb_selected_hover_color = self._check_color_type(kwargs.pop("selected_hover_color"))
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if self._current_value in self._buttons_dict:
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self._buttons_dict[self._current_value].configure(hover_color=self._sb_selected_hover_color)
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if "unselected_color" in kwargs:
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self._sb_unselected_color = self._check_color_type(kwargs.pop("unselected_color"))
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for value, button in self._buttons_dict.items():
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if value != self._current_value:
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button.configure(fg_color=self._sb_unselected_color)
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if "unselected_hover_color" in kwargs:
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self._sb_unselected_hover_color = self._check_color_type(kwargs.pop("unselected_hover_color"))
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for value, button in self._buttons_dict.items():
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if value != self._current_value:
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button.configure(hover_color=self._sb_unselected_hover_color)
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if "text_color" in kwargs:
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self._sb_text_color = self._check_color_type(kwargs.pop("text_color"))
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for button in self._buttons_dict.values():
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button.configure(text_color=self._sb_text_color)
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if "text_color_disabled" in kwargs:
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self._sb_text_color_disabled = self._check_color_type(kwargs.pop("text_color_disabled"))
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for button in self._buttons_dict.values():
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button.configure(text_color_disabled=self._sb_text_color_disabled)
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if "background_corner_colors" in kwargs:
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self._background_corner_colors = kwargs.pop("background_corner_colors")
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for i in range(len(self._buttons_dict)):
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self._configure_button_corners_for_index(i)
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if "font" in kwargs:
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self._font = kwargs.pop("font")
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for button in self._buttons_dict.values():
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button.configure(font=self._font)
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if "values" in kwargs:
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for button in self._buttons_dict.values():
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button.destroy()
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self._buttons_dict.clear()
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self._value_list = kwargs.pop("values")
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self._check_unique_values(self._value_list)
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if len(self._value_list) > 0:
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self._create_buttons_from_values()
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self._create_button_grid()
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if self._current_value in self._value_list:
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self._select_button_by_value(self._current_value)
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if "variable" in kwargs:
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if self._variable is not None: # remove old callback
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self._variable.trace_remove("write", self._variable_callback_name)
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self._variable = kwargs.pop("variable")
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if self._variable is not None and self._variable != "":
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self._variable_callback_name = self._variable.trace_add("write", self._variable_callback)
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self.set(self._variable.get(), from_variable_callback=True)
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else:
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self._variable = None
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if "dynamic_resizing" in kwargs:
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self._dynamic_resizing = kwargs.pop("dynamic_resizing")
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if not self._dynamic_resizing:
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self.grid_propagate(False)
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else:
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self.grid_propagate(True)
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if "command" in kwargs:
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self._command = kwargs.pop("command")
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if "state" in kwargs:
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self._state = kwargs.pop("state")
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for button in self._buttons_dict.values():
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button.configure(state=self._state)
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check_kwargs_empty(kwargs, raise_error=True)
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def cget(self, attribute_name: str) -> any:
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if attribute_name == "width":
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return super().cget(attribute_name)
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elif attribute_name == "height":
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return super().cget(attribute_name)
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elif attribute_name == "corner_radius":
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return self._sb_corner_radius
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elif attribute_name == "border_width":
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return self._sb_border_width
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elif attribute_name == "bg_color":
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return super().cget(attribute_name)
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elif attribute_name == "fg_color":
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return self._sb_fg_color
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elif attribute_name == "selected_color":
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return self._sb_selected_color
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elif attribute_name == "selected_hover_color":
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return self._sb_selected_hover_color
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elif attribute_name == "unselected_color":
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return self._sb_unselected_color
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elif attribute_name == "unselected_hover_color":
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return self._sb_unselected_hover_color
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elif attribute_name == "text_color":
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return self._sb_text_color
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elif attribute_name == "text_color_disabled":
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return self._sb_text_color_disabled
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elif attribute_name == "font":
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return self._font
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elif attribute_name == "values":
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return copy.copy(self._value_list)
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elif attribute_name == "variable":
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return self._variable
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elif attribute_name == "dynamic_resizing":
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return self._dynamic_resizing
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elif attribute_name == "command":
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return self._command
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else:
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raise ValueError(f"'{attribute_name}' is not a supported argument. Look at the documentation for supported arguments.")
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def set(self, value: str, from_variable_callback: bool = False, from_button_callback: bool = False):
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if value == self._current_value:
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return
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elif value in self._buttons_dict:
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self._select_button_by_value(value)
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if self._variable is not None and not from_variable_callback:
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self._variable_callback_blocked = True
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self._variable.set(value)
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self._variable_callback_blocked = False
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else:
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if self._current_value in self._buttons_dict:
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self._unselect_button_by_value(self._current_value)
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self._current_value = value
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if self._variable is not None and not from_variable_callback:
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self._variable_callback_blocked = True
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self._variable.set(value)
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self._variable_callback_blocked = False
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if from_button_callback:
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if self._command is not None:
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self._command(self._current_value)
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def get(self) -> str:
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return self._current_value
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def index(self, value: str) -> int:
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return self._value_list.index(value)
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def insert(self, index: int, value: str):
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if value not in self._buttons_dict:
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if value != "":
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self._value_list.insert(index, value)
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self._buttons_dict[value] = self._create_button(index, value)
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self._configure_button_corners_for_index(index)
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if index > 0:
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self._configure_button_corners_for_index(index - 1)
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if index < len(self._buttons_dict) - 1:
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self._configure_button_corners_for_index(index + 1)
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self._create_button_grid()
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if value == self._current_value:
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self._select_button_by_value(self._current_value)
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else:
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raise ValueError(f"CTkSegmentedButton can not insert value ''")
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else:
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raise ValueError(f"CTkSegmentedButton can not insert value '{value}', already part of the values")
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def move(self, new_index: int, value: str):
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if 0 <= new_index < len(self._value_list):
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if value in self._buttons_dict:
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self.delete(value)
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self.insert(new_index, value)
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else:
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raise ValueError(f"CTkSegmentedButton has no value named '{value}'")
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else:
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raise ValueError(f"CTkSegmentedButton new_index {new_index} not in range of value list with len {len(self._value_list)}")
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def delete(self, value: str):
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if value in self._buttons_dict:
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self._buttons_dict[value].destroy()
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self._buttons_dict.pop(value)
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index_to_remove = self._get_index_by_value(value)
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self._value_list.pop(index_to_remove)
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# removed index was outer right element
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if index_to_remove == len(self._buttons_dict) and len(self._buttons_dict) > 0:
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self._configure_button_corners_for_index(index_to_remove - 1)
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# removed index was outer left element
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if index_to_remove == 0 and len(self._buttons_dict) > 0:
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self._configure_button_corners_for_index(0)
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#if index_to_remove <= len(self._buttons_dict) - 1:
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# self._configure_button_corners_for_index(index_to_remove)
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|
|
self._create_button_grid()
|
|
else:
|
|
raise ValueError(f"CTkSegmentedButton does not contain value '{value}'")
|
|
|
|
def bind(self, sequence=None, command=None, add=None):
|
|
raise NotImplementedError
|
|
|
|
def unbind(self, sequence=None, funcid=None):
|
|
raise NotImplementedError
|
|
|