mirror of
https://github.com/TomSchimansky/CustomTkinter.git
synced 2023-08-10 21:13:13 +03:00
599 lines
30 KiB
Python
599 lines
30 KiB
Python
import tkinter
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import sys
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from .customtkinter_tk import CTk
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from .customtkinter_frame import CTkFrame
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from .appearance_mode_tracker import AppearanceModeTracker
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from .customtkinter_color_manager import CTkColorManager
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class CTkButton(tkinter.Frame):
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""" tkinter custom button with border, rounded corners and hover effect """
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def __init__(self, *args,
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bg_color=None,
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fg_color="CTkColorManager",
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hover_color="CTkColorManager",
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border_color="CTkColorManager",
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border_width=0,
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command=None,
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textvariable=None,
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width=120,
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height=30,
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corner_radius=8,
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text_font=None,
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text_color="CTkColorManager",
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text="CTkButton",
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hover=True,
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image=None,
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compound=tkinter.LEFT,
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state=tkinter.NORMAL,
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**kwargs):
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super().__init__(*args, **kwargs)
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# overwrite configure methods of master when master is tkinter widget, so that bg changes get applied on child CTk widget too
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if isinstance(self.master, (tkinter.Tk, tkinter.Frame)) and not isinstance(self.master, (CTk, CTkFrame)):
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master_old_configure = self.master.config
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def new_configure(*args, **kwargs):
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if "bg" in kwargs:
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self.configure(bg_color=kwargs["bg"])
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elif "background" in kwargs:
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self.configure(bg_color=kwargs["background"])
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# args[0] is dict when attribute gets changed by widget[<attribute>] syntax
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elif len(args) > 0 and type(args[0]) == dict:
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if "bg" in args[0]:
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self.configure(bg_color=args[0]["bg"])
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elif "background" in args[0]:
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self.configure(bg_color=args[0]["background"])
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master_old_configure(*args, **kwargs)
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self.master.config = new_configure
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self.master.configure = new_configure
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AppearanceModeTracker.add(self.set_appearance_mode, self)
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self.appearance_mode = AppearanceModeTracker.get_mode() # 0: "Light" 1: "Dark"
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self.configure_basic_grid()
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# color variables
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self.bg_color = self.detect_color_of_master() if bg_color is None else bg_color
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self.fg_color = CTkColorManager.MAIN if fg_color == "CTkColorManager" else fg_color
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self.hover_color = CTkColorManager.MAIN_HOVER if hover_color == "CTkColorManager" else hover_color
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self.border_color = CTkColorManager.CHECKBOX_LINES if border_color == "CTkColorManager" else border_color
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# shape and size
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self.width = width
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self.height = height
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self.configure(width=self.width, height=self.height)
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self.corner_radius = self.calc_optimal_corner_radius(corner_radius) # optimise for less artifacts
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self.border_width = round(border_width) # round border_width (inner parts not centered otherwise)
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if self.corner_radius * 2 > self.height:
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self.corner_radius = self.height / 2
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elif self.corner_radius * 2 > self.width:
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self.corner_radius = self.width / 2
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if self.corner_radius >= self.border_width:
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self.inner_corner_radius = self.corner_radius - self.border_width
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else:
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self.inner_corner_radius = 0
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# text and font and image
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self.image = image
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self.image_label = None
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self.text = text
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self.text_label = None
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self.text_color = CTkColorManager.TEXT if text_color == "CTkColorManager" else text_color
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if text_font is None:
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if sys.platform == "darwin": # macOS
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self.text_font = ("Avenir", 13)
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elif "win" in sys.platform: # Windows
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self.text_font = ("Century Gothic", 11)
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else:
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self.text_font = "TkDefaultFont"
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else:
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self.text_font = text_font
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# callback and hover functionality
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self.function = command
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self.textvariable = textvariable
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self.state = state
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self.hover = hover
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self.compound = compound
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self.click_animation_running = False
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if sys.platform == "darwin" and self.function is not None:
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self.configure(cursor="pointinghand") # other cursor when hovering over button with command
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self.canvas = tkinter.Canvas(master=self,
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highlightthicknes=0,
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width=self.width,
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height=self.height)
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self.canvas.grid(row=0, column=0, rowspan=2, columnspan=2, sticky="nsew")
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# event bindings
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if self.hover is True:
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self.canvas.bind("<Enter>", self.on_enter)
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self.canvas.bind("<Leave>", self.on_leave)
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self.canvas.bind("<Button-1>", self.clicked)
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self.canvas.bind("<Button-1>", self.clicked)
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# Each time an item is resized due to pack position mode, the binding Configure is called on the widget
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self.bind('<Configure>', self.update_dimensions)
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self.draw() # initial draw
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def destroy(self):
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AppearanceModeTracker.remove(self.set_appearance_mode)
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super().destroy()
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def configure_basic_grid(self):
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# Configuration of a basic grid (2x2) in which all elements of CTkButtons are centered on one row and one column
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self.grid_rowconfigure(0, weight=1)
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self.grid_columnconfigure(0, weight=1)
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self.grid_rowconfigure(1, weight=1)
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self.grid_columnconfigure(1, weight=1)
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def update_dimensions(self, event):
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# only redraw if dimensions changed (for performance)
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if self.width != event.width or self.height != event.height:
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self.width = event.width
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self.height = event.height
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# self.canvas.config(width=self.width, height=self.height)
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self.draw(no_color_updates=True) # fast drawing without color changes
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def detect_color_of_master(self):
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if isinstance(self.master, CTkFrame):
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return self.master.fg_color
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else:
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return self.master.cget("bg")
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@staticmethod
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def calc_optimal_corner_radius(user_corner_radius):
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if sys.platform == "darwin":
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return user_corner_radius # on macOS just use given value (canvas has Antialiasing)
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else:
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user_corner_radius = 0.5 * round(user_corner_radius / 0.5) # round to 0.5 steps
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# make sure the value is always with .5 at the end for smoother corners
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if user_corner_radius == 0:
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return 0
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elif user_corner_radius % 1 == 0:
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return user_corner_radius + 0.5
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else:
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return user_corner_radius
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def draw(self, no_color_updates=False):
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self.canvas.configure(bg=CTkColorManager.single_color(self.bg_color, self.appearance_mode))
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# decide the drawing method
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if sys.platform == "darwin":
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# on macOS draw button with polygons (positions are more accurate, macOS has Antialiasing)
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self.draw_with_polygon_shapes()
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else:
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# on Windows and other draw with ovals (corner_radius can be optimised to look better than with polygons)
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self.draw_with_ovals_and_rects()
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if no_color_updates is False:
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# set color for the button border parts (outline)
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self.canvas.itemconfig("border_parts",
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outline=CTkColorManager.single_color(self.border_color, self.appearance_mode),
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fill=CTkColorManager.single_color(self.border_color, self.appearance_mode))
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# set color for inner button parts (depends on button state)
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if self.state == tkinter.DISABLED:
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if self.fg_color is None:
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self.canvas.itemconfig("inner_parts",
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outline=CTkColorManager.darken_hex_color(CTkColorManager.single_color(self.bg_color, self.appearance_mode)),
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fill=CTkColorManager.darken_hex_color(CTkColorManager.single_color(self.bg_color, self.appearance_mode)))
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else:
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self.canvas.itemconfig("inner_parts",
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outline=CTkColorManager.darken_hex_color(
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CTkColorManager.single_color(self.fg_color, self.appearance_mode)),
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fill=CTkColorManager.darken_hex_color(
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CTkColorManager.single_color(self.fg_color, self.appearance_mode)))
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else:
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if self.fg_color is None:
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self.canvas.itemconfig("inner_parts",
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outline=CTkColorManager.single_color(self.bg_color, self.appearance_mode),
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fill=CTkColorManager.single_color(self.bg_color, self.appearance_mode))
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else:
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self.canvas.itemconfig("inner_parts",
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outline=CTkColorManager.single_color(self.fg_color, self.appearance_mode),
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fill=CTkColorManager.single_color(self.fg_color, self.appearance_mode))
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# create text label if text given
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if self.text is not None and self.text != "":
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if self.text_label is None:
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self.text_label = tkinter.Label(master=self, font=self.text_font, textvariable=self.textvariable)
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self.text_label.bind("<Enter>", self.on_enter)
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self.text_label.bind("<Leave>", self.on_leave)
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self.text_label.bind("<Button-1>", self.clicked)
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self.text_label.bind("<Button-1>", self.clicked)
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if no_color_updates is False:
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# set text_label fg color (text color)
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self.text_label.configure(fg=CTkColorManager.single_color(self.text_color, self.appearance_mode))
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# set text_label bg color (label color)
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if self.state == tkinter.DISABLED:
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if self.fg_color is None:
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self.text_label.configure(
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bg=CTkColorManager.darken_hex_color(CTkColorManager.single_color(self.bg_color, self.appearance_mode)))
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else:
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self.text_label.configure(
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bg=CTkColorManager.darken_hex_color(CTkColorManager.single_color(self.fg_color, self.appearance_mode)))
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else:
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if self.fg_color is None:
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self.text_label.configure(bg=CTkColorManager.single_color(self.bg_color, self.appearance_mode))
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else:
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self.text_label.configure(bg=CTkColorManager.single_color(self.fg_color, self.appearance_mode))
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self.text_label.configure(text=self.text) # set text
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else:
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# delete text_label if no text given
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if self.text_label is not None:
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self.text_label.destroy()
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self.text_label = None
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# create image label if image given
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if self.image is not None:
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if self.image_label is None:
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self.image_label = tkinter.Label(master=self)
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self.image_label.bind("<Enter>", self.on_enter)
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self.image_label.bind("<Leave>", self.on_leave)
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self.image_label.bind("<Button-1>", self.clicked)
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self.image_label.bind("<Button-1>", self.clicked)
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if no_color_updates is False:
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# set image_label bg color (background color of label)
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if self.state == tkinter.DISABLED:
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self.image_label.configure(bg=CTkColorManager.darken_hex_color(CTkColorManager.single_color(self.fg_color, self.appearance_mode)))
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else:
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self.image_label.configure(bg=CTkColorManager.single_color(self.fg_color, self.appearance_mode))
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self.image_label.configure(image=self.image) # set image
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else:
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# delete text_label if no text given
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if self.image_label is not None:
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self.image_label.destroy()
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self.image_label = None
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# create grid layout with just an image given
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if self.image_label is not None and self.text_label is None:
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self.image_label.grid(row=0, column=0, rowspan=2, columnspan=2, sticky="")
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# create grid layout with just text given
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if self.image_label is None and self.text_label is not None:
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self.text_label.grid(row=0, column=0, padx=self.corner_radius, pady=self.border_width, rowspan=2, columnspan=2, sticky="")
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# create grid layout of image and text label in 2x2 grid system with given compound
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if self.image_label is not None and self.text_label is not None:
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if self.compound == tkinter.LEFT or self.compound == "left":
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self.image_label.grid(row=0, column=0, padx=self.corner_radius, sticky="e", rowspan=2, columnspan=1)
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self.text_label.grid(row=0, column=1, padx=self.corner_radius, sticky="w", rowspan=2, columnspan=1, pady=self.border_width)
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elif self.compound == tkinter.TOP or self.compound == "top":
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self.image_label.grid(row=0, column=0, padx=self.corner_radius, sticky="s", columnspan=2, rowspan=1)
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self.text_label.grid(row=1, column=0, padx=self.corner_radius, sticky="n", columnspan=2, rowspan=1, pady=self.border_width)
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elif self.compound == tkinter.RIGHT or self.compound == "right":
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self.image_label.grid(row=0, column=1, padx=self.corner_radius, sticky="w", rowspan=2, columnspan=1)
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self.text_label.grid(row=0, column=0, padx=self.corner_radius, sticky="e", rowspan=2, columnspan=1, pady=self.border_width)
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elif self.compound == tkinter.BOTTOM or self.compound == "bottom":
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self.image_label.grid(row=1, column=0, padx=self.corner_radius, sticky="n", columnspan=2, rowspan=1)
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self.text_label.grid(row=0, column=0, padx=self.corner_radius, sticky="s", columnspan=2, rowspan=1, pady=self.border_width)
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def draw_with_polygon_shapes(self):
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""" draw the button parts with just two polygons that have a rounded border """
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# create border button parts (only if border exists)
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if self.border_width > 0:
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if not self.canvas.find_withtag("border_parts"):
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self.canvas.create_polygon((0, 0, 0, 0), tags=("border_line_1", "border_parts"))
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self.canvas.coords("border_line_1",
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(self.corner_radius,
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self.corner_radius,
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self.width - self.corner_radius,
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self.corner_radius,
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self.width - self.corner_radius,
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self.height - self.corner_radius,
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self.corner_radius,
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self.height - self.corner_radius))
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self.canvas.itemconfig("border_line_1",
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joinstyle=tkinter.ROUND,
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width=self.corner_radius * 2)
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# create inner button parts
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if not self.canvas.find_withtag("inner_parts"):
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self.canvas.create_polygon((0, 0, 0, 0), tags=("inner_line_1", "inner_parts"))
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if self.corner_radius <= self.border_width:
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bottom_right_shift = -1 # weird canvas rendering inaccuracy that has to be corrected in some cases
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else:
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bottom_right_shift = 0
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self.canvas.coords("inner_line_1",
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(self.border_width + self.inner_corner_radius,
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self.border_width + self.inner_corner_radius,
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self.width - (self.border_width + self.inner_corner_radius) + bottom_right_shift,
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self.border_width + self.inner_corner_radius,
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self.width - (self.border_width + self.inner_corner_radius) + bottom_right_shift,
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self.height - (self.border_width + self.inner_corner_radius) + bottom_right_shift,
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self.border_width + self.inner_corner_radius,
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self.height - (self.border_width + self.inner_corner_radius) + bottom_right_shift))
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self.canvas.itemconfig("inner_line_1",
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joinstyle=tkinter.ROUND,
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width=self.inner_corner_radius * 2)
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def draw_with_ovals_and_rects(self):
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""" draw the button parts with ovals at the corner and rectangles in the middle """
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if sys.platform == "darwin":
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oval_bottom_right_shift = 0
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rect_bottom_right_shift = 0
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else:
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# ovals and rects are always rendered too large on Windows and need to be made smaller by -1
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oval_bottom_right_shift = -1
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rect_bottom_right_shift = -1
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# create border button parts
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if self.border_width > 0:
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if self.corner_radius > 0:
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# create canvas border corner parts if not already created
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if not self.canvas.find_withtag("border_oval_1"):
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self.canvas.create_oval(0, 0, 0, 0, tags=("border_oval_1", "border_corner_part", "border_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("border_oval_2", "border_corner_part", "border_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("border_oval_3", "border_corner_part", "border_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("border_oval_4", "border_corner_part", "border_parts"))
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# change position of border corner parts
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self.canvas.coords("border_oval_1", (0,
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0,
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self.corner_radius * 2 + oval_bottom_right_shift,
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self.corner_radius * 2 + oval_bottom_right_shift))
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self.canvas.coords("border_oval_2", (self.width - self.corner_radius * 2,
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0,
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self.width + oval_bottom_right_shift,
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self.corner_radius * 2 + oval_bottom_right_shift))
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self.canvas.coords("border_oval_3", (0,
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self.height - self.corner_radius * 2,
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self.corner_radius * 2 + oval_bottom_right_shift,
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self.height + oval_bottom_right_shift))
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self.canvas.coords("border_oval_4", (self.width - self.corner_radius * 2,
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self.height - self.corner_radius * 2,
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self.width + oval_bottom_right_shift,
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self.height + oval_bottom_right_shift))
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else:
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self.canvas.delete("border_corner_part") # delete border corner parts if not needed
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# create canvas border rectangle parts if not already created
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if not self.canvas.find_withtag("border_rectangle_1"):
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self.canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_1", "border_rectangle_part", "border_parts"))
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self.canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_2", "border_rectangle_part", "border_parts"))
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# change position of border rectangle parts
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self.canvas.coords("border_rectangle_1", (0,
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self.corner_radius,
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self.width + rect_bottom_right_shift,
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self.height - self.corner_radius + rect_bottom_right_shift))
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self.canvas.coords("border_rectangle_2", (self.corner_radius,
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0,
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self.width - self.corner_radius + rect_bottom_right_shift,
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self.height + rect_bottom_right_shift))
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# create inner button parts
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if self.inner_corner_radius > 0:
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# create canvas border corner parts if not already created
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if not self.canvas.find_withtag("inner_corner_part"):
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self.canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_1", "inner_corner_part", "inner_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_2", "inner_corner_part", "inner_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_3", "inner_corner_part", "inner_parts"))
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self.canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_4", "inner_corner_part", "inner_parts"))
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# change position of border corner parts
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self.canvas.coords("inner_oval_1", (self.border_width,
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self.border_width,
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self.border_width + self.inner_corner_radius * 2 + oval_bottom_right_shift,
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self.border_width + self.inner_corner_radius * 2 + oval_bottom_right_shift))
|
|
self.canvas.coords("inner_oval_2", (self.width - self.border_width - self.inner_corner_radius * 2,
|
|
self.border_width,
|
|
self.width - self.border_width + oval_bottom_right_shift,
|
|
self.border_width + self.inner_corner_radius * 2 + oval_bottom_right_shift))
|
|
self.canvas.coords("inner_oval_3", (self.border_width,
|
|
self.height - self.border_width - self.inner_corner_radius * 2,
|
|
self.border_width + self.inner_corner_radius * 2 + oval_bottom_right_shift,
|
|
self.height - self.border_width + oval_bottom_right_shift))
|
|
self.canvas.coords("inner_oval_4", (self.width - self.border_width - self.inner_corner_radius * 2,
|
|
self.height - self.border_width - self.inner_corner_radius * 2,
|
|
self.width - self.border_width + oval_bottom_right_shift,
|
|
self.height - self.border_width + oval_bottom_right_shift))
|
|
else:
|
|
self.canvas.delete("inner_corner_part") # delete inner corner parts if not needed
|
|
|
|
# create canvas inner rectangle parts if not already created
|
|
if not self.canvas.find_withtag("inner_rectangle_part"):
|
|
self.canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_1", "inner_rectangle_part", "inner_parts"))
|
|
self.canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_2", "inner_rectangle_part", "inner_parts"))
|
|
|
|
# change position of inner rectangle parts
|
|
self.canvas.coords("inner_rectangle_1", (self.border_width + self.inner_corner_radius,
|
|
self.border_width,
|
|
self.width - self.border_width - self.inner_corner_radius + rect_bottom_right_shift,
|
|
self.height - self.border_width + rect_bottom_right_shift))
|
|
self.canvas.coords("inner_rectangle_2", (self.border_width,
|
|
self.border_width + self.inner_corner_radius,
|
|
self.width - self.border_width + rect_bottom_right_shift,
|
|
self.height - self.inner_corner_radius - self.border_width + rect_bottom_right_shift))
|
|
|
|
def config(self, *args, **kwargs):
|
|
self.configure(*args, **kwargs)
|
|
|
|
def configure(self, *args, **kwargs):
|
|
require_redraw = False # some attribute changes require a call of self.draw() at the end
|
|
|
|
if "text" in kwargs:
|
|
self.set_text(kwargs["text"])
|
|
del kwargs["text"]
|
|
|
|
if "state" in kwargs:
|
|
self.set_state(kwargs["state"])
|
|
del kwargs["state"]
|
|
|
|
if "image" in kwargs:
|
|
self.set_image(kwargs["image"])
|
|
del kwargs["image"]
|
|
|
|
if "compound" in kwargs:
|
|
self.compound = kwargs["compound"]
|
|
require_redraw = True
|
|
del kwargs["compound"]
|
|
|
|
if "fg_color" in kwargs:
|
|
self.fg_color = kwargs["fg_color"]
|
|
require_redraw = True
|
|
del kwargs["fg_color"]
|
|
|
|
if "border_color" in kwargs:
|
|
self.border_color = kwargs["border_color"]
|
|
require_redraw = True
|
|
del kwargs["border_color"]
|
|
|
|
if "bg_color" in kwargs:
|
|
if kwargs["bg_color"] is None:
|
|
self.bg_color = self.detect_color_of_master()
|
|
else:
|
|
self.bg_color = kwargs["bg_color"]
|
|
require_redraw = True
|
|
del kwargs["bg_color"]
|
|
|
|
if "hover_color" in kwargs:
|
|
self.hover_color = kwargs["hover_color"]
|
|
require_redraw = True
|
|
del kwargs["hover_color"]
|
|
|
|
if "text_color" in kwargs:
|
|
self.text_color = kwargs["text_color"]
|
|
require_redraw = True
|
|
del kwargs["text_color"]
|
|
|
|
if "command" in kwargs:
|
|
self.function = kwargs["command"]
|
|
del kwargs["command"]
|
|
|
|
if "textvariable" in kwargs:
|
|
self.textvariable = kwargs["textvariable"]
|
|
if self.text_label is not None:
|
|
self.text_label.configure(textvariable=self.textvariable)
|
|
del kwargs["textvariable"]
|
|
|
|
super().configure(*args, **kwargs)
|
|
|
|
if require_redraw:
|
|
self.draw()
|
|
|
|
def set_state(self, state):
|
|
self.state = state
|
|
|
|
if self.state == tkinter.DISABLED:
|
|
self.hover = False
|
|
if sys.platform == "darwin" and self.function is not None:
|
|
self.configure(cursor="arrow")
|
|
|
|
elif self.state == tkinter.NORMAL:
|
|
self.hover = True
|
|
if sys.platform == "darwin" and self.function is not None:
|
|
self.configure(cursor="pointinghand")
|
|
|
|
self.draw()
|
|
|
|
def set_text(self, text):
|
|
self.text = text
|
|
self.draw()
|
|
|
|
def set_image(self, image):
|
|
self.image = image
|
|
self.draw()
|
|
|
|
def on_enter(self, event=0):
|
|
if self.hover is True:
|
|
if self.hover_color is None:
|
|
inner_parts_color = self.fg_color
|
|
else:
|
|
inner_parts_color = self.hover_color
|
|
|
|
# set color of inner button parts to hover color
|
|
self.canvas.itemconfig("inner_parts",
|
|
outline=CTkColorManager.single_color(inner_parts_color, self.appearance_mode),
|
|
fill=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
# set text_label bg color to button hover color
|
|
if self.text_label is not None:
|
|
self.text_label.configure(bg=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
# set image_label bg color to button hover color
|
|
if self.image_label is not None:
|
|
self.image_label.configure(bg=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
def on_leave(self, event=0):
|
|
self.click_animation_running = False
|
|
|
|
if self.hover is True:
|
|
if self.fg_color is None:
|
|
inner_parts_color = self.bg_color
|
|
else:
|
|
inner_parts_color = self.fg_color
|
|
|
|
# set color of inner button parts
|
|
self.canvas.itemconfig("inner_parts",
|
|
outline=CTkColorManager.single_color(inner_parts_color, self.appearance_mode),
|
|
fill=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
# set text_label bg color (label color)
|
|
if self.text_label is not None:
|
|
self.text_label.configure(bg=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
# set image_label bg color (image bg color)
|
|
if self.image_label is not None:
|
|
self.image_label.configure(bg=CTkColorManager.single_color(inner_parts_color, self.appearance_mode))
|
|
|
|
def click_animation(self):
|
|
if self.click_animation_running:
|
|
self.on_enter()
|
|
|
|
def clicked(self, event=0):
|
|
if self.function is not None:
|
|
if self.state is not tkinter.DISABLED:
|
|
|
|
# click animation: change color with .on_leave() and back to normal after 100ms with click_animation()
|
|
self.on_leave()
|
|
self.click_animation_running = True
|
|
self.after(100, self.click_animation)
|
|
|
|
self.function()
|
|
|
|
def set_appearance_mode(self, mode_string):
|
|
if mode_string.lower() == "dark":
|
|
self.appearance_mode = 1
|
|
elif mode_string.lower() == "light":
|
|
self.appearance_mode = 0
|
|
|
|
if isinstance(self.master, (CTkFrame, CTk)):
|
|
self.bg_color = self.master.fg_color
|
|
else:
|
|
self.bg_color = self.master.cget("bg")
|
|
|
|
self.draw()
|