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improved CTkSlider and CTkCheckBox rendering

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Tom Schimansky
2021-11-10 22:17:49 +01:00
parent 47f7c3189f
commit 4301419228
6 changed files with 197 additions and 110 deletions
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2
customtkinter/customtkinter_button.py
View File

@ -94,8 +94,6 @@ class CTkButton(tkinter.Frame):
self.canvas.bind("<Button-1>", self.clicked)
self.canvas.bind("<Button-1>", self.clicked)
self.canvas_fg_parts = []
self.canvas_border_parts = []
self.text_label = None
self.image_label = None

39
customtkinter/customtkinter_checkbox.py
View File

@ -44,7 +44,7 @@ class CTkCheckBox(tkinter.Frame):
elif self.corner_radius*2 > self.width:
self.corner_radius = self.width/2
self.border_width = border_width
self.border_width = round(border_width)
if self.corner_radius >= self.border_width:
self.inner_corner_radius = self.corner_radius - self.border_width
@ -123,26 +123,31 @@ class CTkCheckBox(tkinter.Frame):
else:
self.canvas.configure(bg=self.bg_color)
if sys.platform == "darwin":
oval_size_corr_br = 0
else:
oval_size_corr_br = -1
# border button parts
if self.border_width > 0:
if self.corner_radius > 0:
self.canvas_border_parts.append(self.canvas.create_oval(0,
0,
self.corner_radius * 2,
self.corner_radius * 2))
self.corner_radius * 2 + oval_size_corr_br,
self.corner_radius * 2 + oval_size_corr_br))
self.canvas_border_parts.append(self.canvas.create_oval(self.width - self.corner_radius * 2,
0,
self.width,
self.corner_radius * 2))
self.width + oval_size_corr_br,
self.corner_radius * 2 + oval_size_corr_br))
self.canvas_border_parts.append(self.canvas.create_oval(0,
self.height - self.corner_radius * 2,
self.corner_radius * 2,
self.height))
self.corner_radius * 2 + oval_size_corr_br,
self.height + oval_size_corr_br))
self.canvas_border_parts.append(self.canvas.create_oval(self.width - self.corner_radius * 2,
self.height - self.corner_radius * 2,
self.width,
self.height))
self.width + oval_size_corr_br,
self.height + oval_size_corr_br))
self.canvas_border_parts.append(self.canvas.create_rectangle(0,
self.corner_radius,
@ -158,20 +163,20 @@ class CTkCheckBox(tkinter.Frame):
if self.corner_radius > 0:
self.canvas_fg_parts.append(self.canvas.create_oval(self.border_width,
self.border_width,
self.border_width + self.inner_corner_radius * 2,
self.border_width + self.inner_corner_radius * 2))
self.border_width + self.inner_corner_radius * 2 + oval_size_corr_br,
self.border_width + self.inner_corner_radius * 2 + oval_size_corr_br))
self.canvas_fg_parts.append(self.canvas.create_oval(self.width - self.border_width - self.inner_corner_radius * 2,
self.border_width,
self.width - self.border_width,
self.border_width + self.inner_corner_radius * 2))
self.width - self.border_width + oval_size_corr_br,
self.border_width + self.inner_corner_radius * 2 + oval_size_corr_br))
self.canvas_fg_parts.append(self.canvas.create_oval(self.border_width,
self.height - self.border_width - self.inner_corner_radius * 2,
self.border_width + self.inner_corner_radius * 2,
self.height-self.border_width))
self.border_width + self.inner_corner_radius * 2 + oval_size_corr_br,
self.height-self.border_width + oval_size_corr_br))
self.canvas_fg_parts.append(self.canvas.create_oval(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,
self.height - self.border_width))
self.width - self.border_width + oval_size_corr_br,
self.height - self.border_width + oval_size_corr_br))
self.canvas_fg_parts.append(self.canvas.create_rectangle(self.border_width + self.inner_corner_radius,
self.border_width,

21
customtkinter/customtkinter_progressbar.py
View File

@ -29,8 +29,8 @@ class CTkProgressBar(tkinter.Frame):
self.progress_color = CTkColorManager.MAIN if progress_color is None else progress_color
self.width = width
self.height = height
self.border_width = border_width
self.height = self.calc_optimal_height(height)
self.border_width = round(border_width)
self.value = 0.5
self.configure(width=self.width, height=self.height)
@ -41,10 +41,6 @@ class CTkProgressBar(tkinter.Frame):
height=self.height)
self.canvas.place(x=0, y=0)
self.border_parts = []
self.fg_parts = []
self.progress_parts = []
self.draw()
# set progress
@ -56,6 +52,19 @@ class CTkProgressBar(tkinter.Frame):
else:
return self.master.cget("bg")
@staticmethod
def calc_optimal_height(user_height):
if sys.platform == "darwin":
return user_height # on macOS just use given value (canvas has Antialiasing)
else:
# make sure the value is always with uneven for better rendering of the ovals
if user_height == 0:
return 0
elif user_height % 2 == 0:
return user_height + 1
else:
return user_height
def draw(self, no_color_updates=False):
# decide the drawing method

187
customtkinter/customtkinter_slider.py
View File

@ -28,14 +28,14 @@ class CTkSlider(tkinter.Frame):
self.appearance_mode = AppearanceModeTracker.get_mode() # 0: "Light" 1: "Dark"
self.bg_color = self.detect_color_of_master() if bg_color is None else bg_color
self.border_color = border_color
self.border_color = self.bg_color if border_color is None else border_color
self.fg_color = fg_color
self.button_color = self.bg_color if button_color is None else button_color
self.button_hover_color = self.bg_color if button_hover_color is None else button_hover_color
self.width = width
self.height = height
self.border_width = border_width
self.height = self.calc_optimal_height(height)
self.border_width = round(border_width)
self.callback_function = command
self.value = 0.5 # initial value of slider in percent
self.hover_state = False
@ -58,10 +58,6 @@ class CTkSlider(tkinter.Frame):
self.canvas.bind("<Button-1>", self.clicked)
self.canvas.bind("<B1-Motion>", self.clicked)
self.border_parts = []
self.fg_parts = []
self.button_parts = []
self.draw()
def detect_color_of_master(self):
@ -70,42 +66,137 @@ class CTkSlider(tkinter.Frame):
else:
return self.master.cget("bg")
def draw(self):
self.canvas.delete("all")
self.border_parts = []
self.fg_parts = []
self.button_parts = []
@staticmethod
def calc_optimal_height(user_height):
if sys.platform == "darwin":
return user_height # on macOS just use given value (canvas has Antialiasing)
else:
# make sure the value is always with uneven for better rendering of the ovals
if user_height == 0:
return 0
elif user_height % 2 == 0:
return user_height + 1
else:
return user_height
def draw(self, no_color_updates=False):
# decide the drawing method
if sys.platform == "darwin":
# on macOS draw button with polygons (positions are more accurate, macOS has Antialiasing)
self.draw_with_polygon_shapes()
else:
# on Windows and other draw with ovals (corner_radius can be optimised to look better than with polygons)
self.draw_with_ovals_and_rects()
if no_color_updates is False:
self.canvas.configure(bg=CTkColorManager.single_color(self.bg_color, self.appearance_mode))
print(self.border_color)
self.canvas.itemconfig("border_parts", fill=CTkColorManager.single_color(self.border_color, self.appearance_mode))
self.canvas.itemconfig("inner_parts", fill=CTkColorManager.single_color(self.fg_color, self.appearance_mode))
self.canvas.itemconfig("button_parts", fill=CTkColorManager.single_color(self.button_color, self.appearance_mode))
def draw_with_polygon_shapes(self):
""" draw the slider parts with just three polygons that have a rounded border """
coordinate_shift = -1
width_reduced = -1
# create border parts
if self.border_width > 0:
if not self.canvas.find_withtag("border_parts"):
self.canvas.create_line((0, 0, 0, 0), tags=("border_line_1", "border_parts"))
self.canvas.coords("border_line_1",
(self.height / 2,
self.height / 2,
self.width - self.height / 2 + coordinate_shift,
self.height / 2))
self.canvas.itemconfig("border_line_1",
capstyle=tkinter.ROUND,
width=self.height + width_reduced)
# create inner button parts
if not self.canvas.find_withtag("inner_parts"):
self.canvas.create_line((0, 0, 0, 0), tags=("inner_line_1", "inner_parts"))
self.canvas.coords("inner_line_1",
(self.height / 2,
self.height / 2,
self.width - self.height / 2 + coordinate_shift,
self.height / 2))
self.canvas.itemconfig("inner_line_1",
capstyle=tkinter.ROUND,
width=self.height - self.border_width * 2 + width_reduced)
# button parts
if not self.canvas.find_withtag("button_parts"):
self.canvas.create_line((0, 0, 0, 0), tags=("button_line_1", "button_parts"))
self.canvas.coords("button_line_1",
(self.height / 2 + (self.width + coordinate_shift - self.height) * self.value,
self.height / 2,
self.height / 2 + (self.width + coordinate_shift - self.height) * self.value,
self.height / 2))
self.canvas.itemconfig("button_line_1",
capstyle=tkinter.ROUND,
width=self.height + width_reduced)
def draw_with_ovals_and_rects(self):
""" draw the progress bar parts with ovals and rectangles """
# ovals and rects are always rendered too large and need to be made smaller by -1
oval_bottom_right_shift = -1
rect_bottom_right_shift = -1
# frame_border
self.border_parts.append(self.canvas.create_oval(0, 0,
self.height, self.height))
self.border_parts.append(self.canvas.create_rectangle(self.height/2, 0,
self.width-(self.height/2), self.height))
self.border_parts.append(self.canvas.create_oval(self.width-self.height, 0,
self.width, self.height))
if self.border_width > 0:
if not self.canvas.find_withtag("border_parts"):
self.canvas.create_oval((0, 0, 0, 0), tags=("border_oval_1", "border_parts"), width=0)
self.canvas.create_rectangle((0, 0, 0, 0), tags=("border_rect_1", "border_parts"), width=0)
self.canvas.create_oval((0, 0, 0, 0), tags=("border_oval_2", "border_parts"), width=0)
self.canvas.coords("border_oval_1", (0,
0,
self.height + oval_bottom_right_shift,
self.height + oval_bottom_right_shift))
self.canvas.coords("border_rect_1", (self.height/2,
0,
self.width-(self.height/2) + rect_bottom_right_shift,
self.height + rect_bottom_right_shift))
self.canvas.coords("border_oval_2", (self.width-self.height,
0,
self.width + oval_bottom_right_shift,
self.height + oval_bottom_right_shift))
# foreground
self.fg_parts.append(self.canvas.create_oval(self.border_width, self.border_width,
self.height-self.border_width, self.height-self.border_width))
self.fg_parts.append(self.canvas.create_rectangle(self.height/2, self.border_width,
self.width-(self.height/2), self.height-self.border_width))
self.fg_parts.append(self.canvas.create_oval(self.width-self.height+self.border_width, self.border_width,
self.width-self.border_width, self.height-self.border_width))
if not self.canvas.find_withtag("inner_parts"):
self.canvas.create_oval((0, 0, 0, 0), tags=("inner_oval_1", "inner_parts"), width=0)
self.canvas.create_rectangle((0, 0, 0, 0), tags=("inner_rect_1", "inner_parts"), width=0)
self.canvas.create_oval((0, 0, 0, 0), tags=("inner_oval_2", "inner_parts"), width=0)
# button
self.button_parts.append(self.canvas.create_oval(self.value*self.width - self.height/2, 0,
self.value*self.width + self.height/2, self.height))
self.canvas.coords("inner_oval_1", (self.border_width,
self.border_width,
self.height-self.border_width + oval_bottom_right_shift,
self.height-self.border_width + oval_bottom_right_shift))
self.canvas.coords("inner_rect_1", (self.height/2,
self.border_width,
self.width-(self.height/2 + rect_bottom_right_shift),
self.height-self.border_width + rect_bottom_right_shift))
self.canvas.coords("inner_oval_2", (self.width-self.height+self.border_width,
self.border_width,
self.width-self.border_width + oval_bottom_right_shift,
self.height-self.border_width + oval_bottom_right_shift))
self.canvas.configure(bg=CTkColorManager.single_color(self.bg_color, self.appearance_mode))
# progress parts
if not self.canvas.find_withtag("button_parts"):
self.canvas.create_oval((0, 0, 0, 0), tags=("button_oval_1", "button_parts"), width=0)
for part in self.border_parts:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.border_color, self.appearance_mode), width=0)
for part in self.fg_parts:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.fg_color, self.appearance_mode), width=0)
for part in self.button_parts:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.button_color, self.appearance_mode), width=0)
self.canvas.coords("button_oval_1",
((self.width - self.height) * self.value,
0,
self.height + (self.width - self.height) * self.value + oval_bottom_right_shift,
self.height + oval_bottom_right_shift))
def clicked(self, event=None):
self.value = event.x / self.width
@ -117,33 +208,18 @@ class CTkSlider(tkinter.Frame):
self.output_value = self.from_ + (self.value * (self.to - self.from_))
self.update()
self.draw(no_color_updates=True)
if self.callback_function is not None:
self.callback_function(self.output_value)
def update(self):
for part in self.button_parts:
self.canvas.delete(part)
self.button_parts.append(self.canvas.create_oval(self.value * (self.width-self.height), 0,
self.value * (self.width-self.height) + self.height, self.height))
for part in self.button_parts:
if self.hover_state is True:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.button_hover_color, self.appearance_mode), width=0)
else:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.button_color, self.appearance_mode), width=0)
def on_enter(self, event=0):
self.hover_state = True
for part in self.button_parts:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.button_hover_color, self.appearance_mode), width=0)
self.canvas.itemconfig("button_parts", fill=CTkColorManager.single_color(self.button_hover_color, self.appearance_mode))
def on_leave(self, event=0):
self.hover_state = False
for part in self.button_parts:
self.canvas.itemconfig(part, fill=CTkColorManager.single_color(self.button_color, self.appearance_mode), width=0)
self.canvas.itemconfig("button_parts", fill=CTkColorManager.single_color(self.button_color, self.appearance_mode))
def get(self):
return self.output_value
@ -151,7 +227,8 @@ class CTkSlider(tkinter.Frame):
def set(self, output_value):
self.output_value = output_value
self.value = (self.output_value - self.from_) / (self.to - self.from_)
self.update()
self.draw(no_color_updates=True)
if self.callback_function is not None:
self.callback_function(self.output_value)