mirror of
https://github.com/TomSchimansky/CustomTkinter.git
synced 2023-08-10 21:13:13 +03:00
209 lines
9.1 KiB
Python
209 lines
9.1 KiB
Python
import sys
|
|
import tkinter
|
|
|
|
from .ctk_frame import CTkFrame
|
|
from .ctk_canvas import CTkCanvas
|
|
from ..theme_manager import ThemeManager
|
|
from ..draw_engine import DrawEngine
|
|
from .widget_base_class import CTkBaseClass
|
|
|
|
|
|
class CTkScrollbar(CTkBaseClass):
|
|
def __init__(self, *args,
|
|
bg_color=None,
|
|
fg_color="default_theme",
|
|
scrollbar_color="default_theme",
|
|
scrollbar_hover_color="default_theme",
|
|
border_spacing="default_theme",
|
|
corner_radius="default_theme",
|
|
width=None,
|
|
height=None,
|
|
orientation="vertical",
|
|
command=None,
|
|
hover=True,
|
|
**kwargs):
|
|
|
|
# set default dimensions according to orientation
|
|
if width is None:
|
|
if orientation.lower() == "vertical":
|
|
width = 16
|
|
else:
|
|
width = 200
|
|
if height is None:
|
|
if orientation.lower() == "vertical":
|
|
height = 200
|
|
else:
|
|
height = 16
|
|
|
|
# transfer basic functionality (bg_color, size, _appearance_mode, scaling) to CTkBaseClass
|
|
super().__init__(*args, bg_color=bg_color, width=width, height=height, **kwargs)
|
|
|
|
# color
|
|
self.fg_color = ThemeManager.theme["color"]["frame_high"] if fg_color == "default_theme" else fg_color
|
|
self.scrollbar_color = ThemeManager.theme["color"]["scrollbar_button"] if scrollbar_color == "default_theme" else scrollbar_color
|
|
self.scrollbar_hover_color = ThemeManager.theme["color"]["scrollbar_button_hover"] if scrollbar_hover_color == "default_theme" else scrollbar_hover_color
|
|
|
|
# shape
|
|
self.corner_radius = ThemeManager.theme["shape"]["scrollbar_corner_radius"] if corner_radius == "default_theme" else corner_radius
|
|
self.border_spacing = ThemeManager.theme["shape"]["scrollbar_border_spacing"] if border_spacing == "default_theme" else border_spacing
|
|
|
|
self.hover = hover
|
|
self.hover_state = False
|
|
self.command = command
|
|
self.orientation = orientation
|
|
self.start_value: float = 0 # 0 to 1
|
|
self.end_value: float = 1 # 0 to 1
|
|
|
|
self.canvas = CTkCanvas(master=self,
|
|
highlightthickness=0,
|
|
width=self.apply_widget_scaling(self._current_width),
|
|
height=self.apply_widget_scaling(self._current_height))
|
|
self.canvas.place(x=0, y=0, relwidth=1, relheight=1)
|
|
self.draw_engine = DrawEngine(self.canvas)
|
|
|
|
self.canvas.bind("<Enter>", self.on_enter)
|
|
self.canvas.bind("<Leave>", self.on_leave)
|
|
self.canvas.tag_bind("border_parts", "<Button-1>", self.clicked)
|
|
self.canvas.bind("<B1-Motion>", self.clicked)
|
|
self.canvas.bind("<MouseWheel>", self.mouse_scroll_event)
|
|
self.bind('<Configure>', self.update_dimensions_event)
|
|
|
|
self.draw()
|
|
|
|
def set_scaling(self, *args, **kwargs):
|
|
super().set_scaling(*args, **kwargs)
|
|
|
|
self.canvas.configure(width=self.apply_widget_scaling(self._desired_width), height=self.apply_widget_scaling(self._desired_height))
|
|
self.draw(no_color_updates=True)
|
|
|
|
def set_dimensions(self, width=None, height=None):
|
|
super().set_dimensions(width, height)
|
|
|
|
self.canvas.configure(width=self.apply_widget_scaling(self._desired_width),
|
|
height=self.apply_widget_scaling(self._desired_height))
|
|
self.draw(no_color_updates=True)
|
|
|
|
def draw(self, no_color_updates=False):
|
|
requires_recoloring = self.draw_engine.draw_rounded_scrollbar(self.apply_widget_scaling(self._current_width),
|
|
self.apply_widget_scaling(self._current_height),
|
|
self.apply_widget_scaling(self.corner_radius),
|
|
self.apply_widget_scaling(self.border_spacing),
|
|
self.start_value, self.end_value,
|
|
self.orientation)
|
|
|
|
if no_color_updates is False or requires_recoloring:
|
|
if self.hover_state is True:
|
|
self.canvas.itemconfig("scrollbar_parts",
|
|
fill=ThemeManager.single_color(self.scrollbar_hover_color, self._appearance_mode),
|
|
outline=ThemeManager.single_color(self.scrollbar_hover_color, self._appearance_mode))
|
|
else:
|
|
self.canvas.itemconfig("scrollbar_parts",
|
|
fill=ThemeManager.single_color(self.scrollbar_color, self._appearance_mode),
|
|
outline=ThemeManager.single_color(self.scrollbar_color, self._appearance_mode))
|
|
|
|
if self.fg_color is None:
|
|
self.canvas.itemconfig("border_parts",
|
|
fill=ThemeManager.single_color(self.bg_color, self._appearance_mode),
|
|
outline=ThemeManager.single_color(self.bg_color, self._appearance_mode))
|
|
else:
|
|
self.canvas.itemconfig("border_parts",
|
|
fill=ThemeManager.single_color(self.fg_color, self._appearance_mode),
|
|
outline=ThemeManager.single_color(self.fg_color, self._appearance_mode))
|
|
|
|
self.canvas.update_idletasks()
|
|
|
|
def set(self, start_value: float, end_value: float):
|
|
self.start_value = float(start_value)
|
|
self.end_value = float(end_value)
|
|
self.scrollbar_height = self.end_value - self.start_value
|
|
self.draw()
|
|
|
|
def get(self):
|
|
return self.start_value, self.end_value
|
|
|
|
def configure(self, *args, **kwargs):
|
|
require_redraw = False # some attribute changes require a call of self.draw() at the end
|
|
|
|
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 "fg_color" in kwargs:
|
|
self.fg_color = kwargs["fg_color"]
|
|
require_redraw = True
|
|
del kwargs["fg_color"]
|
|
|
|
if "scrollbar_color" in kwargs:
|
|
self.scrollbar_color = kwargs["scrollbar_color"]
|
|
require_redraw = True
|
|
del kwargs["scrollbar_color"]
|
|
|
|
if "scrollbar_hover_color" in kwargs:
|
|
self.scrollbar_hover_color = kwargs["scrollbar_hover_color"]
|
|
require_redraw = True
|
|
del kwargs["scrollbar_hover_color"]
|
|
|
|
if "command" in kwargs:
|
|
self.command = kwargs["command"]
|
|
del kwargs["command"]
|
|
|
|
if "corner_radius" in kwargs:
|
|
self.corner_radius = kwargs["corner_radius"]
|
|
require_redraw = True
|
|
del kwargs["corner_radius"]
|
|
|
|
if "border_spacing" in kwargs:
|
|
self.border_spacing = kwargs["border_spacing"]
|
|
require_redraw = True
|
|
del kwargs["border_spacing"]
|
|
|
|
if "width" in kwargs:
|
|
self.set_dimensions(width=kwargs["width"])
|
|
del kwargs["width"]
|
|
|
|
if "height" in kwargs:
|
|
self.set_dimensions(height=kwargs["height"])
|
|
del kwargs["height"]
|
|
|
|
super().configure(*args, **kwargs)
|
|
|
|
if require_redraw:
|
|
self.draw()
|
|
|
|
def on_enter(self, event=0):
|
|
if self.hover is True:
|
|
self.hover_state = True
|
|
self.canvas.itemconfig("scrollbar_parts",
|
|
outline=ThemeManager.single_color(self.scrollbar_hover_color, self._appearance_mode),
|
|
fill=ThemeManager.single_color(self.scrollbar_hover_color, self._appearance_mode))
|
|
|
|
def on_leave(self, event=0):
|
|
self.hover_state = False
|
|
self.canvas.itemconfig("scrollbar_parts",
|
|
outline=ThemeManager.single_color(self.scrollbar_color, self._appearance_mode),
|
|
fill=ThemeManager.single_color(self.scrollbar_color, self._appearance_mode))
|
|
|
|
def clicked(self, event):
|
|
if self.orientation == "vertical":
|
|
value = ((event.y - self.border_spacing) / (self._current_height - 2 * self.border_spacing)) / self._widget_scaling
|
|
current_scrollbar_length = self.end_value - self.start_value
|
|
value = max(current_scrollbar_length / 2, min(value, 1 - (current_scrollbar_length / 2)))
|
|
self.start_value = value - (current_scrollbar_length / 2)
|
|
self.end_value = value + (current_scrollbar_length / 2)
|
|
self.draw()
|
|
|
|
if self.command is not None:
|
|
self.command('moveto', self.start_value)
|
|
|
|
def mouse_scroll_event(self, event=None):
|
|
if self.command is not None:
|
|
if sys.platform.startswith("win"):
|
|
self.command('scroll', -int(event.delta/40), 'units')
|
|
else:
|
|
self.command('scroll', -event.delta, 'units')
|
|
|