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197 lines
9.3 KiB
197 lines
9.3 KiB
2 years ago
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from typing import Union, Tuple, List, Optional
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from .core_rendering import CTkCanvas
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from .theme import ThemeManager
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from .core_rendering import DrawEngine
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from .core_widget_classes import CTkBaseClass
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class CTkFrame(CTkBaseClass):
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"""
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Frame with rounded corners and border.
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Default foreground colors are set according to theme.
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To make the frame transparent set fg_color=None.
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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 = 200,
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height: int = 200,
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corner_radius: Optional[Union[int, str]] = None,
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border_width: Optional[Union[int, str]] = 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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background_corner_colors: Union[Tuple[Union[str, Tuple[str, str]]], None] = None,
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overwrite_preferred_drawing_method: Union[str, None] = None,
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**kwargs):
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# transfer basic functionality (_bg_color, size, __appearance_mode, scaling) to CTkBaseClass
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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):
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if self.master._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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self._background_corner_colors = background_corner_colors # rendering options for DrawEngine
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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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highlightthickness=0,
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width=self._apply_widget_scaling(self._current_width),
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height=self._apply_widget_scaling(self._current_height))
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self._canvas.place(x=0, y=0, relwidth=1, relheight=1)
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self._canvas.configure(bg=self._apply_appearance_mode(self._bg_color))
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self._draw_engine = DrawEngine(self._canvas)
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self._overwrite_preferred_drawing_method = overwrite_preferred_drawing_method
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self._draw(no_color_updates=True)
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def winfo_children(self) -> List[any]:
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"""
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winfo_children of CTkFrame without self.canvas widget,
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because it's not a child but part of the CTkFrame 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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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))
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self._draw()
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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))
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self._draw()
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def _draw(self, no_color_updates=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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if self._background_corner_colors is not None:
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self._draw_engine.draw_background_corners(self._apply_widget_scaling(self._current_width),
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self._apply_widget_scaling(self._current_height))
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self._canvas.itemconfig("background_corner_top_left", fill=self._apply_appearance_mode(self._background_corner_colors[0]))
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self._canvas.itemconfig("background_corner_top_right", fill=self._apply_appearance_mode(self._background_corner_colors[1]))
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self._canvas.itemconfig("background_corner_bottom_right", fill=self._apply_appearance_mode(self._background_corner_colors[2]))
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self._canvas.itemconfig("background_corner_bottom_left", fill=self._apply_appearance_mode(self._background_corner_colors[3]))
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else:
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self._canvas.delete("background_parts")
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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),
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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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overwrite_preferred_drawing_method=self._overwrite_preferred_drawing_method)
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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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# self._canvas.tag_lower("inner_parts") # maybe unnecessary, I don't know ???
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# self._canvas.tag_lower("border_parts")
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def configure(self, require_redraw=False, **kwargs):
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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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# check if CTk widgets are children of the frame and change their bg_color to new frame fg_color
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for child in self.winfo_children():
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if isinstance(child, CTkBaseClass):
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child.configure(bg_color=self._fg_color)
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if "bg_color" in kwargs:
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# pass bg_color change to children if fg_color is "transparent"
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if self._fg_color == "transparent":
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for child in self.winfo_children():
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if isinstance(child, CTkBaseClass):
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child.configure(bg_color=self._fg_color)
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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 "background_corner_colors" in kwargs:
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self._background_corner_colors = kwargs.pop("background_corner_colors")
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require_redraw = True
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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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super().configure(require_redraw=require_redraw, **kwargs)
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def cget(self, attribute_name: str) -> any:
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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 == "background_corner_colors":
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return self._background_corner_colors
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else:
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return super().cget(attribute_name)
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def bind(self, sequence=None, command=None, add=True):
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""" called on the tkinter.Canvas """
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if not (add == "+" or add is True):
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raise ValueError("'add' argument can only be '+' or True to preserve internal callbacks")
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self._canvas.bind(sequence, command, add=True)
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def unbind(self, sequence=None, funcid=None):
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""" called on the tkinter.Canvas """
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if funcid is not None:
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raise ValueError("'funcid' argument can only be None, because there is a bug in" +
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" tkinter and its not clear whether the internal callbacks will be unbinded or not")
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self._canvas.unbind(sequence, None)
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