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draw_engine.py
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1181 lines (985 loc) · 85.8 KB
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from __future__ import annotations
import sys
import math
import tkinter
from typing import Union, TYPE_CHECKING
if TYPE_CHECKING:
from .widgets.ctk_canvas import CTkCanvas
class DrawEngine:
"""
This is the core of the CustomTkinter library where all the drawing on the tkinter.Canvas happens.
A year of experimenting and trying out different drawing methods have led to the current state of this
class, and I don't think there's much I can do to make the rendering look better than this with the
limited capabilities the tkinter.Canvas offers.
Functions:
- draw_rounded_rect_with_border()
- draw_rounded_rect_with_border_vertical_split()
- draw_rounded_progress_bar_with_border()
- draw_rounded_slider_with_border_and_button()
- draw_rounded_scrollbar()
- draw_checkmark()
- draw_dropdown_arrow()
"""
preferred_drawing_method: str = None # 'polygon_shapes', 'font_shapes', 'circle_shapes'
def __init__(self, canvas: CTkCanvas):
self._canvas = canvas
def __calc_optimal_corner_radius(self, user_corner_radius: Union[float, int]) -> Union[float, int]:
# optimize for drawing with polygon shapes
if self.preferred_drawing_method == "polygon_shapes":
if sys.platform == "darwin":
return user_corner_radius
else:
return round(user_corner_radius)
# optimize for drawing with antialiased font shapes
elif self.preferred_drawing_method == "font_shapes":
return round(user_corner_radius)
# optimize for drawing with circles and rects
elif self.preferred_drawing_method == "circle_shapes":
user_corner_radius = 0.5 * round(user_corner_radius / 0.5) # round to 0.5 steps
# make sure the value is always with .5 at the end for smoother corners
if user_corner_radius == 0:
return 0
elif user_corner_radius % 1 == 0:
return user_corner_radius + 0.5
else:
return user_corner_radius
def draw_rounded_rect_with_border(self, width: Union[float, int], height: Union[float, int], corner_radius: Union[float, int],
border_width: Union[float, int], overwrite_preferred_drawing_method: str = None) -> bool:
""" Draws a rounded rectangle with a corner_radius and border_width on the canvas. The border elements have a 'border_parts' tag,
the main foreground elements have an 'inner_parts' tag to color the elements accordingly.
returns bool if recoloring is necessary """
width = math.floor(width / 2) * 2 # round (floor) _current_width and _current_height and restrict them to even values only
height = math.floor(height / 2) * 2
corner_radius = round(corner_radius)
if corner_radius > width / 2 or corner_radius > height / 2: # restrict corner_radius if it's too larger
corner_radius = min(width / 2, height / 2)
border_width = round(border_width)
corner_radius = self.__calc_optimal_corner_radius(corner_radius) # optimize corner_radius for different drawing methods (different rounding)
if corner_radius >= border_width:
inner_corner_radius = corner_radius - border_width
else:
inner_corner_radius = 0
if overwrite_preferred_drawing_method is not None:
preferred_drawing_method = overwrite_preferred_drawing_method
else:
preferred_drawing_method = self.preferred_drawing_method
if preferred_drawing_method == "polygon_shapes":
return self.__draw_rounded_rect_with_border_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius)
elif preferred_drawing_method == "font_shapes":
return self.__draw_rounded_rect_with_border_font_shapes(width, height, corner_radius, border_width, inner_corner_radius, ())
elif preferred_drawing_method == "circle_shapes":
return self.__draw_rounded_rect_with_border_circle_shapes(width, height, corner_radius, border_width, inner_corner_radius)
def __draw_rounded_rect_with_border_polygon_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int) -> bool:
requires_recoloring = False
# create border button parts (only if border exists)
if border_width > 0:
if not self._canvas.find_withtag("border_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("border_line_1", "border_parts"))
requires_recoloring = True
self._canvas.coords("border_line_1",
(corner_radius,
corner_radius,
width - corner_radius,
corner_radius,
width - corner_radius,
height - corner_radius,
corner_radius,
height - corner_radius))
self._canvas.itemconfig("border_line_1",
joinstyle=tkinter.ROUND,
width=corner_radius * 2)
else:
self._canvas.delete("border_parts")
# create inner button parts
if not self._canvas.find_withtag("inner_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("inner_line_1", "inner_parts"), joinstyle=tkinter.ROUND)
requires_recoloring = True
if corner_radius <= border_width:
bottom_right_shift = -1 # weird canvas rendering inaccuracy that has to be corrected in some cases
else:
bottom_right_shift = 0
self._canvas.coords("inner_line_1",
border_width + inner_corner_radius,
border_width + inner_corner_radius,
width - (border_width + inner_corner_radius) + bottom_right_shift,
border_width + inner_corner_radius,
width - (border_width + inner_corner_radius) + bottom_right_shift,
height - (border_width + inner_corner_radius) + bottom_right_shift,
border_width + inner_corner_radius,
height - (border_width + inner_corner_radius) + bottom_right_shift)
self._canvas.itemconfig("inner_line_1",
width=inner_corner_radius * 2)
if requires_recoloring: # new parts were added -> manage z-order
self._canvas.tag_lower("inner_parts")
self._canvas.tag_lower("border_parts")
return requires_recoloring
def __draw_rounded_rect_with_border_font_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
exclude_parts: tuple) -> bool:
requires_recoloring = False
# create border button parts
if border_width > 0:
if corner_radius > 0:
# create canvas border corner parts if not already created, but only if needed, and delete if not needed
if not self._canvas.find_withtag("border_oval_1_a") and "border_oval_1" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_1_a", "border_corner_part", "border_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_1_b", "border_corner_part", "border_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_1_a") and "border_oval_1" in exclude_parts:
self._canvas.delete("border_oval_1_a", "border_oval_1_b")
if not self._canvas.find_withtag("border_oval_2_a") and width > 2 * corner_radius and "border_oval_2" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_2_a", "border_corner_part", "border_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_2_b", "border_corner_part", "border_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_2_a") and (not width > 2 * corner_radius or "border_oval_2" in exclude_parts):
self._canvas.delete("border_oval_2_a", "border_oval_2_b")
if not self._canvas.find_withtag("border_oval_3_a") and height > 2 * corner_radius \
and width > 2 * corner_radius and "border_oval_3" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_3_a", "border_corner_part", "border_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_3_b", "border_corner_part", "border_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_3_a") and (not (height > 2 * corner_radius
and width > 2 * corner_radius) or "border_oval_3" in exclude_parts):
self._canvas.delete("border_oval_3_a", "border_oval_3_b")
if not self._canvas.find_withtag("border_oval_4_a") and height > 2 * corner_radius and "border_oval_4" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_4_a", "border_corner_part", "border_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_4_b", "border_corner_part", "border_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_4_a") and (not height > 2 * corner_radius or "border_oval_4" in exclude_parts):
self._canvas.delete("border_oval_4_a", "border_oval_4_b")
# change position of border corner parts
self._canvas.coords("border_oval_1_a", corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_1_b", corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_2_a", width - corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_2_b", width - corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_3_a", width - corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_3_b", width - corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_4_a", corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_4_b", corner_radius, height - corner_radius, corner_radius)
else:
self._canvas.delete("border_corner_part") # delete border corner parts if not needed
# create canvas border rectangle parts if not already created
if not self._canvas.find_withtag("border_rectangle_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_1", "border_rectangle_part", "border_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_2", "border_rectangle_part", "border_parts"), width=0)
requires_recoloring = True
# change position of border rectangle parts
self._canvas.coords("border_rectangle_1", (0, corner_radius, width, height - corner_radius))
self._canvas.coords("border_rectangle_2", (corner_radius, 0, width - corner_radius, height))
else:
self._canvas.delete("border_parts")
# create inner button parts
if inner_corner_radius > 0:
# create canvas border corner parts if not already created, but only if they're needed and delete if not needed
if not self._canvas.find_withtag("inner_oval_1_a") and "inner_oval_1" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_1_a", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_1_b", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_1_a") and "inner_oval_1" in exclude_parts:
self._canvas.delete("inner_oval_1_a", "inner_oval_1_b")
if not self._canvas.find_withtag("inner_oval_2_a") and width - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_2" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_2_a", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_2_b", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_2_a") and (not width - (2 * border_width) > 2 * inner_corner_radius or "inner_oval_2" in exclude_parts):
self._canvas.delete("inner_oval_2_a", "inner_oval_2_b")
if not self._canvas.find_withtag("inner_oval_3_a") and height - (2 * border_width) > 2 * inner_corner_radius \
and width - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_3" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_3_a", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_3_b", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_3_a") and (not (height - (2 * border_width) > 2 * inner_corner_radius
and width - (2 * border_width) > 2 * inner_corner_radius) or "inner_oval_3" in exclude_parts):
self._canvas.delete("inner_oval_3_a", "inner_oval_3_b")
if not self._canvas.find_withtag("inner_oval_4_a") and height - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_4" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_4_a", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_4_b", "inner_corner_part", "inner_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_4_a") and (not height - (2 * border_width) > 2 * inner_corner_radius or "inner_oval_4" in exclude_parts):
self._canvas.delete("inner_oval_4_a", "inner_oval_4_b")
# change position of border corner parts
self._canvas.coords("inner_oval_1_a", border_width + inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_1_b", border_width + inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_2_a", width - border_width - inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_2_b", width - border_width - inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_3_a", width - border_width - inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_3_b", width - border_width - inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_4_a", border_width + inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_4_b", border_width + inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
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_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_1", "inner_rectangle_part", "inner_parts"), width=0)
requires_recoloring = True
if not self._canvas.find_withtag("inner_rectangle_2") and inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_2", "inner_rectangle_part", "inner_parts"), width=0)
requires_recoloring = True
elif self._canvas.find_withtag("inner_rectangle_2") and not inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.delete("inner_rectangle_2")
# change position of inner rectangle parts
self._canvas.coords("inner_rectangle_1", (border_width + inner_corner_radius,
border_width,
width - border_width - inner_corner_radius,
height - border_width))
self._canvas.coords("inner_rectangle_2", (border_width,
border_width + inner_corner_radius,
width - border_width,
height - inner_corner_radius - border_width))
if requires_recoloring: # new parts were added -> manage z-order
self._canvas.tag_lower("inner_parts")
self._canvas.tag_lower("border_parts")
return requires_recoloring
def __draw_rounded_rect_with_border_circle_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int) -> bool:
requires_recoloring = False
# border button parts
if border_width > 0:
if corner_radius > 0:
if not self._canvas.find_withtag("border_oval_1"):
self._canvas.create_oval(0, 0, 0, 0, tags=("border_oval_1", "border_corner_part", "border_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("border_oval_2", "border_corner_part", "border_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("border_oval_3", "border_corner_part", "border_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("border_oval_4", "border_corner_part", "border_parts"), width=0)
self._canvas.tag_lower("border_parts")
requires_recoloring = True
self._canvas.coords("border_oval_1", 0, 0, corner_radius * 2 - 1, corner_radius * 2 - 1)
self._canvas.coords("border_oval_2", width - corner_radius * 2, 0, width - 1, corner_radius * 2 - 1)
self._canvas.coords("border_oval_3", 0, height - corner_radius * 2, corner_radius * 2 - 1, height - 1)
self._canvas.coords("border_oval_4", width - corner_radius * 2, height - corner_radius * 2, width - 1, height - 1)
else:
self._canvas.delete("border_corner_part")
if not self._canvas.find_withtag("border_rectangle_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_1", "border_rectangle_part", "border_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_2", "border_rectangle_part", "border_parts"), width=0)
self._canvas.tag_lower("border_parts")
requires_recoloring = True
self._canvas.coords("border_rectangle_1", (0, corner_radius, width, height - corner_radius))
self._canvas.coords("border_rectangle_2", (corner_radius, 0, width - corner_radius, height))
else:
self._canvas.delete("border_parts")
# inner button parts
if inner_corner_radius > 0:
if not self._canvas.find_withtag("inner_oval_1"):
self._canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_1", "inner_corner_part", "inner_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_2", "inner_corner_part", "inner_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_3", "inner_corner_part", "inner_parts"), width=0)
self._canvas.create_oval(0, 0, 0, 0, tags=("inner_oval_4", "inner_corner_part", "inner_parts"), width=0)
self._canvas.tag_raise("inner_parts")
requires_recoloring = True
self._canvas.coords("inner_oval_1", (border_width, border_width,
border_width + inner_corner_radius * 2 - 1, border_width + inner_corner_radius * 2 - 1))
self._canvas.coords("inner_oval_2", (width - border_width - inner_corner_radius * 2, border_width,
width - border_width - 1, border_width + inner_corner_radius * 2 - 1))
self._canvas.coords("inner_oval_3", (border_width, height - border_width - inner_corner_radius * 2,
border_width + inner_corner_radius * 2 - 1, height - border_width - 1))
self._canvas.coords("inner_oval_4", (width - border_width - inner_corner_radius * 2, height - border_width - inner_corner_radius * 2,
width - border_width - 1, height - border_width - 1))
else:
self._canvas.delete("inner_corner_part") # delete inner corner parts if not needed
if not self._canvas.find_withtag("inner_rectangle_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_1", "inner_rectangle_part", "inner_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_2", "inner_rectangle_part", "inner_parts"), width=0)
self._canvas.tag_raise("inner_parts")
requires_recoloring = True
self._canvas.coords("inner_rectangle_1", (border_width + inner_corner_radius,
border_width,
width - border_width - inner_corner_radius,
height - border_width))
self._canvas.coords("inner_rectangle_2", (border_width,
border_width + inner_corner_radius,
width - border_width,
height - inner_corner_radius - border_width))
return requires_recoloring
def draw_rounded_rect_with_border_vertical_split(self, width: Union[float, int], height: Union[float, int], corner_radius: Union[float, int],
border_width: Union[float, int], left_section_width: Union[float, int]) -> bool:
""" Draws a rounded rectangle with a corner_radius and border_width on the canvas which is split at left_section_width.
The border elements have the tags 'border_parts_left', 'border_parts_lright',
the main foreground elements have an 'inner_parts_left' and inner_parts_right' tag,
to color the elements accordingly.
returns bool if recoloring is necessary """
left_section_width = round(left_section_width)
width = math.floor(width / 2) * 2 # round (floor) _current_width and _current_height and restrict them to even values only
height = math.floor(height / 2) * 2
corner_radius = round(corner_radius)
if corner_radius > width / 2 or corner_radius > height / 2: # restrict corner_radius if it's too larger
corner_radius = min(width / 2, height / 2)
border_width = round(border_width)
corner_radius = self.__calc_optimal_corner_radius(corner_radius) # optimize corner_radius for different drawing methods (different rounding)
if corner_radius >= border_width:
inner_corner_radius = corner_radius - border_width
else:
inner_corner_radius = 0
if left_section_width > width - corner_radius * 2:
left_section_width = width - corner_radius * 2
elif left_section_width < corner_radius * 2:
left_section_width = corner_radius * 2
if self.preferred_drawing_method == "polygon_shapes" or self.preferred_drawing_method == "circle_shapes":
return self.__draw_rounded_rect_with_border_vertical_split_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius, left_section_width)
elif self.preferred_drawing_method == "font_shapes":
return self.__draw_rounded_rect_with_border_vertical_split_font_shapes(width, height, corner_radius, border_width, inner_corner_radius, left_section_width, ())
def __draw_rounded_rect_with_border_vertical_split_polygon_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
left_section_width: int) -> bool:
requires_recoloring = False
# create border button parts (only if border exists)
if border_width > 0:
if not self._canvas.find_withtag("border_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("border_line_left_1", "border_parts_left", "border_parts", "left_parts"))
self._canvas.create_polygon((0, 0, 0, 0), tags=("border_line_right_1", "border_parts_right", "border_parts", "right_parts"))
self._canvas.create_rectangle((0, 0, 0, 0), tags=("border_rect_left_1", "border_parts_left", "border_parts", "left_parts"), width=0)
self._canvas.create_rectangle((0, 0, 0, 0), tags=("border_rect_right_1", "border_parts_right", "border_parts", "right_parts"), width=0)
requires_recoloring = True
self._canvas.coords("border_line_left_1",
(corner_radius,
corner_radius,
left_section_width - corner_radius,
corner_radius,
left_section_width - corner_radius,
height - corner_radius,
corner_radius,
height - corner_radius))
self._canvas.coords("border_line_right_1",
(left_section_width + corner_radius,
corner_radius,
width - corner_radius,
corner_radius,
width - corner_radius,
height - corner_radius,
left_section_width + corner_radius,
height - corner_radius))
self._canvas.coords("border_rect_left_1",
(left_section_width - corner_radius,
0,
left_section_width,
height))
self._canvas.coords("border_rect_right_1",
(left_section_width,
0,
left_section_width + corner_radius,
height))
self._canvas.itemconfig("border_line_left_1", joinstyle=tkinter.ROUND, width=corner_radius * 2)
self._canvas.itemconfig("border_line_right_1", joinstyle=tkinter.ROUND, width=corner_radius * 2)
else:
self._canvas.delete("border_parts")
# create inner button parts
if not self._canvas.find_withtag("inner_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("inner_line_left_1", "inner_parts_left", "inner_parts", "left_parts"), joinstyle=tkinter.ROUND)
self._canvas.create_polygon((0, 0, 0, 0), tags=("inner_line_right_1", "inner_parts_right", "inner_parts", "right_parts"), joinstyle=tkinter.ROUND)
self._canvas.create_rectangle((0, 0, 0, 0), tags=("inner_rect_left_1", "inner_parts_left", "inner_parts", "left_parts"), width=0)
self._canvas.create_rectangle((0, 0, 0, 0), tags=("inner_rect_right_1", "inner_parts_right", "inner_parts", "right_parts"), width=0)
requires_recoloring = True
self._canvas.coords("inner_line_left_1",
corner_radius,
corner_radius,
left_section_width - inner_corner_radius,
corner_radius,
left_section_width - inner_corner_radius,
height - corner_radius,
corner_radius,
height - corner_radius)
self._canvas.coords("inner_line_right_1",
left_section_width + inner_corner_radius,
corner_radius,
width - corner_radius,
corner_radius,
width - corner_radius,
height - corner_radius,
left_section_width + inner_corner_radius,
height - corner_radius)
self._canvas.coords("inner_rect_left_1",
(left_section_width - inner_corner_radius,
border_width,
left_section_width,
height - border_width))
self._canvas.coords("inner_rect_right_1",
(left_section_width,
border_width,
left_section_width + inner_corner_radius,
height - border_width))
self._canvas.itemconfig("inner_line_left_1", width=inner_corner_radius * 2)
self._canvas.itemconfig("inner_line_right_1", width=inner_corner_radius * 2)
if requires_recoloring: # new parts were added -> manage z-order
self._canvas.tag_lower("inner_parts")
self._canvas.tag_lower("border_parts")
return requires_recoloring
def __draw_rounded_rect_with_border_vertical_split_font_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
left_section_width: int, exclude_parts: tuple) -> bool:
requires_recoloring = False
# create border button parts
if border_width > 0:
if corner_radius > 0:
# create canvas border corner parts if not already created, but only if needed, and delete if not needed
if not self._canvas.find_withtag("border_oval_1_a") and "border_oval_1" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_1_a", "border_corner_part", "border_parts_left", "border_parts", "left_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_1_b", "border_corner_part", "border_parts_left", "border_parts", "left_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_1_a") and "border_oval_1" in exclude_parts:
self._canvas.delete("border_oval_1_a", "border_oval_1_b")
if not self._canvas.find_withtag("border_oval_2_a") and width > 2 * corner_radius and "border_oval_2" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_2_a", "border_corner_part", "border_parts_right", "border_parts", "right_parts"),
anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_2_b", "border_corner_part", "border_parts_right", "border_parts", "right_parts"),
anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_2_a") and (not width > 2 * corner_radius or "border_oval_2" in exclude_parts):
self._canvas.delete("border_oval_2_a", "border_oval_2_b")
if not self._canvas.find_withtag("border_oval_3_a") and height > 2 * corner_radius \
and width > 2 * corner_radius and "border_oval_3" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_3_a", "border_corner_part", "border_parts_right", "border_parts", "right_parts"),
anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_3_b", "border_corner_part", "border_parts_right", "border_parts", "right_parts"),
anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_3_a") and (not (height > 2 * corner_radius
and width > 2 * corner_radius) or "border_oval_3" in exclude_parts):
self._canvas.delete("border_oval_3_a", "border_oval_3_b")
if not self._canvas.find_withtag("border_oval_4_a") and height > 2 * corner_radius and "border_oval_4" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_4_a", "border_corner_part", "border_parts_left", "border_parts", "left_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("border_oval_4_b", "border_corner_part", "border_parts_left", "border_parts", "left_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_4_a") and (not height > 2 * corner_radius or "border_oval_4" in exclude_parts):
self._canvas.delete("border_oval_4_a", "border_oval_4_b")
# change position of border corner parts
self._canvas.coords("border_oval_1_a", corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_1_b", corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_2_a", width - corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_2_b", width - corner_radius, corner_radius, corner_radius)
self._canvas.coords("border_oval_3_a", width - corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_3_b", width - corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_4_a", corner_radius, height - corner_radius, corner_radius)
self._canvas.coords("border_oval_4_b", corner_radius, height - corner_radius, corner_radius)
else:
self._canvas.delete("border_corner_part") # delete border corner parts if not needed
# create canvas border rectangle parts if not already created
if not self._canvas.find_withtag("border_rectangle_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_left_1", "border_rectangle_part", "border_parts_left", "border_parts", "left_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_left_2", "border_rectangle_part", "border_parts_left", "border_parts", "left_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_right_1", "border_rectangle_part", "border_parts_right", "border_parts", "right_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("border_rectangle_right_2", "border_rectangle_part", "border_parts_right", "border_parts", "right_parts"), width=0)
requires_recoloring = True
# change position of border rectangle parts
self._canvas.coords("border_rectangle_left_1", (0, corner_radius, left_section_width, height - corner_radius))
self._canvas.coords("border_rectangle_left_2", (corner_radius, 0, left_section_width, height))
self._canvas.coords("border_rectangle_right_1", (left_section_width, corner_radius, width, height - corner_radius))
self._canvas.coords("border_rectangle_right_2", (left_section_width, 0, width - corner_radius, height))
else:
self._canvas.delete("border_parts")
# create inner button parts
if inner_corner_radius > 0:
# create canvas border corner parts if not already created, but only if they're needed and delete if not needed
if not self._canvas.find_withtag("inner_oval_1_a") and "inner_oval_1" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_1_a", "inner_corner_part", "inner_parts_left", "inner_parts", "left_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_1_b", "inner_corner_part", "inner_parts_left", "inner_parts", "left_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_1_a") and "inner_oval_1" in exclude_parts:
self._canvas.delete("inner_oval_1_a", "inner_oval_1_b")
if not self._canvas.find_withtag("inner_oval_2_a") and width - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_2" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_2_a", "inner_corner_part", "inner_parts_right", "inner_parts", "right_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_2_b", "inner_corner_part", "inner_parts_right", "inner_parts", "right_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_2_a") and (not width - (2 * border_width) > 2 * inner_corner_radius or "inner_oval_2" in exclude_parts):
self._canvas.delete("inner_oval_2_a", "inner_oval_2_b")
if not self._canvas.find_withtag("inner_oval_3_a") and height - (2 * border_width) > 2 * inner_corner_radius \
and width - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_3" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_3_a", "inner_corner_part", "inner_parts_right", "inner_parts", "right_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_3_b", "inner_corner_part", "inner_parts_right", "inner_parts", "right_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_3_a") and (not (height - (2 * border_width) > 2 * inner_corner_radius
and width - (2 * border_width) > 2 * inner_corner_radius) or "inner_oval_3" in exclude_parts):
self._canvas.delete("inner_oval_3_a", "inner_oval_3_b")
if not self._canvas.find_withtag("inner_oval_4_a") and height - (2 * border_width) > 2 * inner_corner_radius and "inner_oval_4" not in exclude_parts:
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_4_a", "inner_corner_part", "inner_parts_left", "inner_parts", "left_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("inner_oval_4_b", "inner_corner_part", "inner_parts_left", "inner_parts", "left_parts"), anchor=tkinter.CENTER,
angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("inner_oval_4_a") and (not height - (2 * border_width) > 2 * inner_corner_radius or "inner_oval_4" in exclude_parts):
self._canvas.delete("inner_oval_4_a", "inner_oval_4_b")
# change position of border corner parts
self._canvas.coords("inner_oval_1_a", border_width + inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_1_b", border_width + inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_2_a", width - border_width - inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_2_b", width - border_width - inner_corner_radius, border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_3_a", width - border_width - inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_3_b", width - border_width - inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_4_a", border_width + inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("inner_oval_4_b", border_width + inner_corner_radius, height - border_width - inner_corner_radius, inner_corner_radius)
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_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_left_1", "inner_rectangle_part", "inner_parts_left", "inner_parts", "left_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_right_1", "inner_rectangle_part", "inner_parts_right", "inner_parts", "right_parts"), width=0)
requires_recoloring = True
if not self._canvas.find_withtag("inner_rectangle_2") and inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_left_2", "inner_rectangle_part", "inner_parts_left", "inner_parts", "left_parts"), width=0)
self._canvas.create_rectangle(0, 0, 0, 0, tags=("inner_rectangle_right_2", "inner_rectangle_part", "inner_parts_right", "inner_parts", "right_parts"), width=0)
requires_recoloring = True
elif self._canvas.find_withtag("inner_rectangle_2") and not inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.delete("inner_rectangle_left_2")
self._canvas.delete("inner_rectangle_right_2")
# change position of inner rectangle parts
self._canvas.coords("inner_rectangle_left_1", (border_width + inner_corner_radius,
border_width,
left_section_width,
height - border_width))
self._canvas.coords("inner_rectangle_left_2", (border_width,
border_width + inner_corner_radius,
left_section_width,
height - inner_corner_radius - border_width))
self._canvas.coords("inner_rectangle_right_1", (left_section_width,
border_width,
width - border_width - inner_corner_radius,
height - border_width))
self._canvas.coords("inner_rectangle_right_2", (left_section_width,
border_width + inner_corner_radius,
width - border_width,
height - inner_corner_radius - border_width))
if requires_recoloring: # new parts were added -> manage z-order
self._canvas.tag_lower("inner_parts")
self._canvas.tag_lower("border_parts")
return requires_recoloring
def draw_rounded_progress_bar_with_border(self, width: Union[float, int], height: Union[float, int], corner_radius: Union[float, int],
border_width: Union[float, int], progress_value_1: float, progress_value_2: float, orientation: str) -> bool:
""" Draws a rounded bar on the canvas, and onntop sits a progress bar from value 1 to value 2 (range 0-1, left to right, bottom to top).
The border elements get the 'border_parts' tag", the main elements get the 'inner_parts' tag and
the progress elements get the 'progress_parts' tag. The 'orientation' argument defines from which direction the progress starts (n, w, s, e).
returns bool if recoloring is necessary """
width = math.floor(width / 2) * 2 # round _current_width and _current_height and restrict them to even values only
height = math.floor(height / 2) * 2
if corner_radius > width / 2 or corner_radius > height / 2: # restrict corner_radius if it's too larger
corner_radius = min(width / 2, height / 2)
border_width = round(border_width)
corner_radius = self.__calc_optimal_corner_radius(corner_radius) # optimize corner_radius for different drawing methods (different rounding)
if corner_radius >= border_width:
inner_corner_radius = corner_radius - border_width
else:
inner_corner_radius = 0
if self.preferred_drawing_method == "polygon_shapes" or self.preferred_drawing_method == "circle_shapes":
return self.__draw_rounded_progress_bar_with_border_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius,
progress_value_1, progress_value_2, orientation)
elif self.preferred_drawing_method == "font_shapes":
return self.__draw_rounded_progress_bar_with_border_font_shapes(width, height, corner_radius, border_width, inner_corner_radius,
progress_value_1, progress_value_2, orientation)
def __draw_rounded_progress_bar_with_border_polygon_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
progress_value_1: float, progress_value_2: float, orientation: str) -> bool:
requires_recoloring = self.__draw_rounded_rect_with_border_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius)
if corner_radius <= border_width:
bottom_right_shift = 0 # weird canvas rendering inaccuracy that has to be corrected in some cases
else:
bottom_right_shift = 0
# create progress parts
if not self._canvas.find_withtag("progress_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("progress_line_1", "progress_parts"), joinstyle=tkinter.ROUND)
self._canvas.tag_raise("progress_parts", "inner_parts")
requires_recoloring = True
if orientation == "w":
self._canvas.coords("progress_line_1",
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
border_width + inner_corner_radius,
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
border_width + inner_corner_radius,
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
height - (border_width + inner_corner_radius) + bottom_right_shift,
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
height - (border_width + inner_corner_radius) + bottom_right_shift)
elif orientation == "s":
self._canvas.coords("progress_line_1",
border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2),
width - (border_width + inner_corner_radius),
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2),
width - (border_width + inner_corner_radius),
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1),
border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1))
self._canvas.itemconfig("progress_line_1", width=inner_corner_radius * 2)
return requires_recoloring
def __draw_rounded_progress_bar_with_border_font_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
progress_value_1: float, progress_value_2: float, orientation: str) -> bool:
requires_recoloring, requires_recoloring_2 = False, False
if inner_corner_radius > 0:
# create canvas border corner parts if not already created
if not self._canvas.find_withtag("progress_oval_1_a"):
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_1_a", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_1_b", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER, angle=180)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_2_a", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_2_b", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
if not self._canvas.find_withtag("progress_oval_3_a") and round(inner_corner_radius) * 2 < height - 2 * border_width:
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_3_a", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_3_b", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER, angle=180)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_4_a", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("progress_oval_4_b", "progress_corner_part", "progress_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("progress_oval_3_a") and not round(inner_corner_radius) * 2 < height - 2 * border_width:
self._canvas.delete("progress_oval_3_a", "progress_oval_3_b", "progress_oval_4_a", "progress_oval_4_b")
if not self._canvas.find_withtag("progress_rectangle_1"):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("progress_rectangle_1", "progress_rectangle_part", "progress_parts"), width=0)
requires_recoloring = True
if not self._canvas.find_withtag("progress_rectangle_2") and inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.create_rectangle(0, 0, 0, 0, tags=("progress_rectangle_2", "progress_rectangle_part", "progress_parts"), width=0)
requires_recoloring = True
elif self._canvas.find_withtag("progress_rectangle_2") and not inner_corner_radius * 2 < height - (border_width * 2):
self._canvas.delete("progress_rectangle_2")
# horizontal orientation from the bottom
if orientation == "w":
requires_recoloring_2 = self.__draw_rounded_rect_with_border_font_shapes(width, height, corner_radius, border_width, inner_corner_radius,
())
# set positions of progress corner parts
self._canvas.coords("progress_oval_1_a", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_1_b", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_2_a", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_2_b", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
border_width + inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_3_a", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_3_b", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_4_a", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
height - border_width - inner_corner_radius, inner_corner_radius)
self._canvas.coords("progress_oval_4_b", border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
height - border_width - inner_corner_radius, inner_corner_radius)
# set positions of progress rect parts
self._canvas.coords("progress_rectangle_1",
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_1,
border_width,
border_width + inner_corner_radius + (width - 2 * border_width - 2 * inner_corner_radius) * progress_value_2,
height - border_width)
self._canvas.coords("progress_rectangle_2",
border_width + 2 * inner_corner_radius + (width - 2 * inner_corner_radius - 2 * border_width) * progress_value_1,
border_width + inner_corner_radius,
border_width + 2 * inner_corner_radius + (width - 2 * inner_corner_radius - 2 * border_width) * progress_value_2,
height - inner_corner_radius - border_width)
# vertical orientation from the bottom
if orientation == "s":
requires_recoloring_2 = self.__draw_rounded_rect_with_border_font_shapes(width, height, corner_radius, border_width, inner_corner_radius,
())
# set positions of progress corner parts
self._canvas.coords("progress_oval_1_a", border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2), inner_corner_radius)
self._canvas.coords("progress_oval_1_b", border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2), inner_corner_radius)
self._canvas.coords("progress_oval_2_a", width - border_width - inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2), inner_corner_radius)
self._canvas.coords("progress_oval_2_b", width - border_width - inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2), inner_corner_radius)
self._canvas.coords("progress_oval_3_a", width - border_width - inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1), inner_corner_radius)
self._canvas.coords("progress_oval_3_b", width - border_width - inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1), inner_corner_radius)
self._canvas.coords("progress_oval_4_a", border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1), inner_corner_radius)
self._canvas.coords("progress_oval_4_b", border_width + inner_corner_radius,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1), inner_corner_radius)
# set positions of progress rect parts
self._canvas.coords("progress_rectangle_1",
border_width + inner_corner_radius,
border_width + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2),
width - border_width - inner_corner_radius,
border_width + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1))
self._canvas.coords("progress_rectangle_2",
border_width,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_2),
width - border_width,
border_width + inner_corner_radius + (height - 2 * border_width - 2 * inner_corner_radius) * (1 - progress_value_1))
return requires_recoloring or requires_recoloring_2
def draw_rounded_slider_with_border_and_button(self, width: Union[float, int], height: Union[float, int], corner_radius: Union[float, int],
border_width: Union[float, int], button_length: Union[float, int], button_corner_radius: Union[float, int],
slider_value: float, orientation: str) -> bool:
width = math.floor(width / 2) * 2 # round _current_width and _current_height and restrict them to even values only
height = math.floor(height / 2) * 2
if corner_radius > width / 2 or corner_radius > height / 2: # restrict corner_radius if it's too larger
corner_radius = min(width / 2, height / 2)
if button_corner_radius > width / 2 or button_corner_radius > height / 2: # restrict button_corner_radius if it's too larger
button_corner_radius = min(width / 2, height / 2)
button_length = round(button_length)
border_width = round(border_width)
button_corner_radius = round(button_corner_radius)
corner_radius = self.__calc_optimal_corner_radius(corner_radius) # optimize corner_radius for different drawing methods (different rounding)
if corner_radius >= border_width:
inner_corner_radius = corner_radius - border_width
else:
inner_corner_radius = 0
if self.preferred_drawing_method == "polygon_shapes" or self.preferred_drawing_method == "circle_shapes":
return self.__draw_rounded_slider_with_border_and_button_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius,
button_length, button_corner_radius, slider_value, orientation)
elif self.preferred_drawing_method == "font_shapes":
return self.__draw_rounded_slider_with_border_and_button_font_shapes(width, height, corner_radius, border_width, inner_corner_radius,
button_length, button_corner_radius, slider_value, orientation)
def __draw_rounded_slider_with_border_and_button_polygon_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
button_length: int, button_corner_radius: int, slider_value: float, orientation: str) -> bool:
# draw normal progressbar
requires_recoloring = self.__draw_rounded_progress_bar_with_border_polygon_shapes(width, height, corner_radius, border_width, inner_corner_radius,
0, slider_value, orientation)
# create slider button part
if not self._canvas.find_withtag("slider_parts"):
self._canvas.create_polygon((0, 0, 0, 0), tags=("slider_line_1", "slider_parts"), joinstyle=tkinter.ROUND)
self._canvas.tag_raise("slider_parts") # manage z-order
requires_recoloring = True
if corner_radius <= border_width:
bottom_right_shift = -1 # weird canvas rendering inaccuracy that has to be corrected in some cases
else:
bottom_right_shift = 0
if orientation == "w":
slider_x_position = corner_radius + (button_length / 2) + (width - 2 * corner_radius - button_length) * slider_value
self._canvas.coords("slider_line_1",
slider_x_position - (button_length / 2), button_corner_radius,
slider_x_position + (button_length / 2), button_corner_radius,
slider_x_position + (button_length / 2), height - button_corner_radius,
slider_x_position - (button_length / 2), height - button_corner_radius)
self._canvas.itemconfig("slider_line_1",
width=button_corner_radius * 2)
elif orientation == "s":
slider_y_position = corner_radius + (button_length / 2) + (height - 2 * corner_radius - button_length) * (1 - slider_value)
self._canvas.coords("slider_line_1",
button_corner_radius, slider_y_position - (button_length / 2),
button_corner_radius, slider_y_position + (button_length / 2),
width - button_corner_radius, slider_y_position + (button_length / 2),
width - button_corner_radius, slider_y_position - (button_length / 2))
self._canvas.itemconfig("slider_line_1",
width=button_corner_radius * 2)
return requires_recoloring
def __draw_rounded_slider_with_border_and_button_font_shapes(self, width: int, height: int, corner_radius: int, border_width: int, inner_corner_radius: int,
button_length: int, button_corner_radius: int, slider_value: float, orientation: str) -> bool:
# draw normal progressbar
requires_recoloring = self.__draw_rounded_progress_bar_with_border_font_shapes(width, height, corner_radius, border_width, inner_corner_radius,
0, slider_value, orientation)
# create 4 circles (if not needed, then less)
if not self._canvas.find_withtag("slider_oval_1_a"):
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_1_a", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_1_b", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
if not self._canvas.find_withtag("slider_oval_2_a") and button_length > 0:
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_2_a", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_2_b", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("slider_oval_2_a") and not button_length > 0:
self._canvas.delete("slider_oval_2_a", "slider_oval_2_b")
if not self._canvas.find_withtag("slider_oval_4_a") and height > 2 * button_corner_radius:
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_4_a", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_4_b", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("slider_oval_4_a") and not height > 2 * button_corner_radius:
self._canvas.delete("slider_oval_4_a", "slider_oval_4_b")
if not self._canvas.find_withtag("slider_oval_3_a") and button_length > 0 and height > 2 * button_corner_radius:
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_3_a", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER)
self._canvas.create_aa_circle(0, 0, 0, tags=("slider_oval_3_b", "slider_corner_part", "slider_parts"), anchor=tkinter.CENTER, angle=180)
requires_recoloring = True
elif self._canvas.find_withtag("border_oval_3_a") and not (button_length > 0 and height > 2 * button_corner_radius):
self._canvas.delete("slider_oval_3_a", "slider_oval_3_b")
# create the 2 rectangles (if needed)
if not self._canvas.find_withtag("slider_rectangle_1") and button_length > 0:
self._canvas.create_rectangle(0, 0, 0, 0, tags=("slider_rectangle_1", "slider_rectangle_part", "slider_parts"), width=0)
requires_recoloring = True
elif self._canvas.find_withtag("slider_rectangle_1") and not button_length > 0:
self._canvas.delete("slider_rectangle_1")
if not self._canvas.find_withtag("slider_rectangle_2") and height > 2 * button_corner_radius:
self._canvas.create_rectangle(0, 0, 0, 0, tags=("slider_rectangle_2", "slider_rectangle_part", "slider_parts"), width=0)
requires_recoloring = True
elif self._canvas.find_withtag("slider_rectangle_2") and not height > 2 * button_corner_radius:
self._canvas.delete("slider_rectangle_2")
# set positions of circles and rectangles
if orientation == "w":
slider_x_position = corner_radius + (button_length / 2) + (width - 2 * corner_radius - button_length) * slider_value
self._canvas.coords("slider_oval_1_a", slider_x_position - (button_length / 2), button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_1_b", slider_x_position - (button_length / 2), button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_2_a", slider_x_position + (button_length / 2), button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_2_b", slider_x_position + (button_length / 2), button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_3_a", slider_x_position + (button_length / 2), height - button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_3_b", slider_x_position + (button_length / 2), height - button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_4_a", slider_x_position - (button_length / 2), height - button_corner_radius, button_corner_radius)
self._canvas.coords("slider_oval_4_b", slider_x_position - (button_length / 2), height - button_corner_radius, button_corner_radius)
self._canvas.coords("slider_rectangle_1",
slider_x_position - (button_length / 2), 0,
slider_x_position + (button_length / 2), height)
self._canvas.coords("slider_rectangle_2",
slider_x_position - (button_length / 2) - button_corner_radius, button_corner_radius,
slider_x_position + (button_length / 2) + button_corner_radius, height - button_corner_radius)
elif orientation == "s":
slider_y_position = corner_radius + (button_length / 2) + (height - 2 * corner_radius - button_length) * (1 - slider_value)
self._canvas.coords("slider_oval_1_a", button_corner_radius, slider_y_position - (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_1_b", button_corner_radius, slider_y_position - (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_2_a", button_corner_radius, slider_y_position + (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_2_b", button_corner_radius, slider_y_position + (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_3_a", width - button_corner_radius, slider_y_position + (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_3_b", width - button_corner_radius, slider_y_position + (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_4_a", width - button_corner_radius, slider_y_position - (button_length / 2), button_corner_radius)
self._canvas.coords("slider_oval_4_b", width - button_corner_radius, slider_y_position - (button_length / 2), button_corner_radius)
self._canvas.coords("slider_rectangle_1",
0, slider_y_position - (button_length / 2),
width, slider_y_position + (button_length / 2))
self._canvas.coords("slider_rectangle_2",
button_corner_radius, slider_y_position - (button_length / 2) - button_corner_radius,
width - button_corner_radius, slider_y_position + (button_length / 2) + button_corner_radius)
if requires_recoloring: # new parts were added -> manage z-order
self._canvas.tag_raise("slider_parts")
return requires_recoloring
def draw_rounded_scrollbar(self, width: Union[float, int], height: Union[float, int], corner_radius: Union[float, int],
border_spacing: Union[float, int], start_value: float, end_value: float, orientation: str) -> bool:
width = math.floor(width / 2) * 2 # round _current_width and _current_height and restrict them to even values only
height = math.floor(height / 2) * 2
if corner_radius > width / 2 or corner_radius > height / 2: # restrict corner_radius if it's too larger
corner_radius = min(width / 2, height / 2)
border_spacing = round(border_spacing)
corner_radius = self.__calc_optimal_corner_radius(corner_radius) # optimize corner_radius for different drawing methods (different rounding)
if corner_radius >= border_spacing:
inner_corner_radius = corner_radius - border_spacing
else:
inner_corner_radius = 0
if self.preferred_drawing_method == "polygon_shapes" or self.preferred_drawing_method == "circle_shapes":
return self.__draw_rounded_scrollbar_polygon_shapes(width, height, corner_radius, inner_corner_radius,
start_value, end_value, orientation)
elif self.preferred_drawing_method == "font_shapes":