from typing import Union, Tuple, List
from .ctk_canvas import CTkCanvas
from ..theme_manager import ThemeManager
from ..draw_engine import DrawEngine
from .widget_base_class import CTkBaseClass
class CTkFrame(CTkBaseClass):
"""
Frame with rounded corners and border.
Default foreground colors are set according to theme.
To make the frame transparent set fg_color=None.
For detailed information check out the documentation.
"""
def __init__(self, *args,
width: int = 200,
height: int = 200,
corner_radius: Union[int, str] = "default_theme",
border_width: Union[int, str] = "default_theme",
bg_color: Union[str, Tuple[str, str], None] = None,
fg_color: Union[str, Tuple[str, str], None] = "default_theme",
border_color: Union[str, Tuple[str, str]] = "default_theme",
overwrite_preferred_drawing_method: str = None,
**kwargs):
# transfer basic functionality (_bg_color, size, _appearance_mode, scaling) to CTkBaseClass
super().__init__(*args, bg_color=bg_color, width=width, height=height, **kwargs)
# color
self._border_color = ThemeManager.theme["color"]["frame_border"] if border_color == "default_theme" else border_color
# determine fg_color of frame
if fg_color == "default_theme":
if isinstance(self.master, CTkFrame):
if self.master._fg_color == ThemeManager.theme["color"]["frame_low"]:
self._fg_color = ThemeManager.theme["color"]["frame_high"]
else:
self._fg_color = ThemeManager.theme["color"]["frame_low"]
else:
self._fg_color = ThemeManager.theme["color"]["frame_low"]
else:
self._fg_color = fg_color
# shape
self._corner_radius = ThemeManager.theme["shape"]["frame_corner_radius"] if corner_radius == "default_theme" else corner_radius
self._border_width = ThemeManager.theme["shape"]["frame_border_width"] if border_width == "default_theme" else border_width
self._canvas = CTkCanvas(master=self,
highlightthickness=0,
width=self._apply_widget_scaling(self._current_width),
height=self._apply_widget_scaling(self._current_height))
self._canvas.place(x=0, y=0, relwidth=1, relheight=1)
self._canvas.configure(bg=ThemeManager.single_color(self._bg_color, self._appearance_mode))
self._draw_engine = DrawEngine(self._canvas)
self._overwrite_preferred_drawing_method = overwrite_preferred_drawing_method
super().bind('<Configure>', self._update_dimensions_event)
self._draw()
def winfo_children(self) -> List[any]:
"""
winfo_children of CTkFrame without self.canvas widget,
because it's not a child but part of the CTkFrame itself
"""
child_widgets = super().winfo_children()
try:
child_widgets.remove(self._canvas)
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._draw()
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._draw()
def _draw(self, no_color_updates=False):
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._apply_widget_scaling(self._corner_radius),
self._apply_widget_scaling(self._border_width),
overwrite_preferred_drawing_method=self._overwrite_preferred_drawing_method)
if no_color_updates is False or requires_recoloring:
if self._fg_color is None:
self._canvas.itemconfig("inner_parts",
fill=ThemeManager.single_color(self._bg_color, self._appearance_mode),
outline=ThemeManager.single_color(self._bg_color, self._appearance_mode))
else:
self._canvas.itemconfig("inner_parts",
fill=ThemeManager.single_color(self._fg_color, self._appearance_mode),
outline=ThemeManager.single_color(self._fg_color, self._appearance_mode))
self._canvas.itemconfig("border_parts",
fill=ThemeManager.single_color(self._border_color, self._appearance_mode),
outline=ThemeManager.single_color(self._border_color, self._appearance_mode))
self._canvas.configure(bg=ThemeManager.single_color(self._bg_color, self._appearance_mode))
self._canvas.tag_lower("inner_parts")
self._canvas.tag_lower("border_parts")
def configure(self, require_redraw=False, **kwargs):
if "fg_color" in kwargs:
self._fg_color = kwargs.pop("fg_color")
require_redraw = True
# check if CTk widgets are children of the frame and change their _bg_color to new frame fg_color
for child in self.winfo_children():
if isinstance(child, CTkBaseClass):
child.configure(bg_color=self._fg_color)
if "border_color" in kwargs:
self._border_color = kwargs.pop("border_color")
require_redraw = True
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 "width" in kwargs:
self._set_dimensions(width=kwargs.pop("width"))
if "height" in kwargs:
self._set_dimensions(height=kwargs.pop("height"))
super().configure(require_redraw=require_redraw, **kwargs)
def cget(self, attribute_name: str) -> any:
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
else:
return super().cget(attribute_name)
def bind(self, sequence=None, command=None, add=None):
""" called on the tkinter.Canvas """
return self._canvas.bind(sequence, command, add)
def unbind(self, sequence, funcid=None):
""" called on the tkinter.Canvas """
return self._canvas.unbind(sequence, funcid)