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