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269
lpgf.py
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269
lpgf.py
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from typing import Any
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import pygame as pg
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from math import ceil
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def isoceles_triangle(dimensions: tuple[int, int], color = (0,0,0,255)) -> pg.Surface:
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surf = pg.Surface(dimensions, pg.SRCALPHA)
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surf.fill((255,255,255,0))
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pg.draw.polygon(
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surf,
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color,
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(
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(dimensions[0], dimensions[1] / 2),
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(0,0),
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(0, dimensions[1])
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)
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)
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return surf
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def circle(radius, color: tuple[int,int,int,int] = (0,0,0,255)) -> pg.Surface:
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surf = pg.Surface((radius, radius), pg.SRCALPHA)
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surf.fill((255,255,255,0))
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pg.draw.circle(surf, color, (radius / 2, radius / 2), radius)
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return surf
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class Pane(pg.Surface):
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on_click = lambda self, m_pos: None
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on_click_release = lambda self, m_pos: None
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on_click_held = lambda self, m_pos: None
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on_middle_click = lambda self, m_pos: None
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on_middle_click_release = lambda self, m_pos: None
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on_middle_click_held = lambda self, m_pos: None
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on_right_click = lambda self, m_pos: None
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on_right_click_release = lambda self, m_pos: None
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on_right_click_held = lambda self, m_pos: None
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on_mouse_move = lambda self, l_m_pos, m_pos: None
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on_mouse_enter = lambda self, m_pos: None
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on_mouse_exit = lambda self, m_pos: None
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def get_screen_position(self):
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if isinstance(self._parent, Pane):
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screen_position = self._parent.get_screen_position()
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return (
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self.position[0] + screen_position[0],
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self.position[1] + screen_position[1]
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)
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return self.position
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def get_screen_rect(self):
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return self.get_rect().move(self.get_screen_position())
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def get_rect(self) -> pg.Rect:
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return super().get_rect().move(*self.position)
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def get_rect_position_zero(self) -> pg.Rect:
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return super().get_rect()
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def master_pane(dimensions: tuple[int,int], blanking_color: tuple[int,int,int] = (0,0,0), **kwargs) -> 'Pane':
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return Pane(
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dimensions,
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(0,0),
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pg.display.set_mode(dimensions, **kwargs),
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blanking_color=blanking_color,
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**kwargs
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)
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def __init__(
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self,
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dimensions: tuple[int,int],
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position: tuple[int, int],
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parent: pg.Surface,
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blanking_color: tuple[int,int,int] = (0,0,0),
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background_image: pg.Surface | None = None,
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flags=0
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):
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self._m_last_state = [False,False,False]
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self._m_last_inframe = False
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self._m_last_pos = pg.mouse.get_pos()
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self.position = position
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self.blanking_color = blanking_color
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self._background_image = background_image
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self._subpanes: list['Pane'] = []
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if isinstance(parent, Pane):
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parent.add_subpane(self)
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else:
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self._parent = parent
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super().__init__(dimensions, flags)
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def add_subpane(self, subpane: 'Pane') -> None:
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subpane._parent = self
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self._subpanes.append(subpane)
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def blank(self) -> None:
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self.fill(self.blanking_color)
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if self._background_image:
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self.blit(self._background_image, (0,0))
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for subpane in self._subpanes:
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subpane.blank()
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def poll_mouse(self, _m_upper_pane_position: tuple[int,int] | None = None, _occluded: bool = False) -> None:
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if not _m_upper_pane_position:
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_m_upper_pane_position = pg.mouse.get_pos()
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m_pos = (
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_m_upper_pane_position[0] - self.position[0],
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_m_upper_pane_position[1] - self.position[1]
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)
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for subpane in self._subpanes[::-1]:
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subpane.poll_mouse(m_pos, _occluded)
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if not _occluded and subpane.get_rect().collidepoint(m_pos): _occluded = True
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m_state = pg.mouse.get_pressed()
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m_inframe = not _occluded and pg.mouse.get_focused() and self.get_rect_position_zero().collidepoint(m_pos)
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if not m_state[0] and self._m_last_state[0]:
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self.on_click_release(m_pos)
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self._m_last_state[0] = False
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if not m_state[1] and self._m_last_state[1]:
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self.on_middle_click_release(m_pos)
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self._m_last_state[1] = False
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if not m_state[2] and self._m_last_state[2]:
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self.on_right_click_release(m_pos)
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self._m_last_state[2] = False
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if m_inframe:
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if m_state[0]:
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self.on_click_held(m_pos)
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if not self._m_last_state[0]: self.on_click(m_pos)
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if m_state[1]:
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self.on_middle_click_held(m_pos)
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if not self._m_last_state[1]: self.on_middle_click(m_pos)
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if m_state[2]:
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self.on_right_click_held(m_pos)
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if not self._m_last_state[2]: self.on_right_click(m_pos)
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if m_pos != self._m_last_pos:
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self.on_mouse_move(self._m_last_pos, m_pos)
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for index, state in enumerate(m_state):
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if state: self._m_last_state[index] = True
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#this is done so the on_click_release callback is still called if mouse is out of frame
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if m_inframe and not self._m_last_inframe:
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self.on_mouse_enter(m_pos)
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elif not m_inframe and self._m_last_inframe:
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self.on_mouse_exit(m_pos)
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self._m_last_inframe = m_inframe
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self._m_last_pos = m_pos
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def update(self, **draw_options):
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for subpane in self._subpanes:
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subpane.update()
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def move_to_front(self, item):
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if item not in self._subpanes:
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return
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self._subpanes.remove(item)
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self._subpanes.append(item)
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def draw(self, special_flags: int = 0):
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for subpane in self._subpanes:
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subpane.draw()
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self._parent.blit(self, self.position, special_flags=special_flags)
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class DynamicPane(Pane):
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@property
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def content_pane(self):
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return self._content_pane
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def _stick(self, _):
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self._stuck = True
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self._parent.move_to_front(self)
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def _unstick(self, _):
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self._stuck = False
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parent_rect = self._parent.get_rect()
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self_rect = self.get_rect()
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if not parent_rect.collidepoint(self_rect.center):
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self.position = (
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parent_rect.center[0] - ceil(self_rect.width / 2),
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parent_rect.center[1] - ceil(self_rect.height / 2)
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)
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def __init__(
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self,
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dimensions: tuple[int,int],
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position: tuple[int,int,int],
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parent: Pane,
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ribbon_height: int,
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ribbon_color: tuple[int,int,int] = (255,255,255),
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blanking_color: tuple[int,int,int] = (0,0,0),
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background_image: pg.Surface | None = None,
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content_flags=0,
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ribbon_flags=0
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):
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super().__init__(
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dimensions,
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position,
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parent,
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(255,255,255,0),
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flags=pg.SRCALPHA
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)
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self._ribbon: Pane = Pane(
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(dimensions[0], ribbon_height),
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(0,0),
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self,
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ribbon_color,
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flags=ribbon_flags
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)
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self._content_pane: Pane = Pane(
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(dimensions[0], dimensions[1] - ribbon_height),
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(0, ribbon_height),
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self,
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blanking_color=blanking_color,
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background_image=background_image,
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flags=content_flags
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)
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self._stuck = False
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self._ribbon.on_click = self._stick
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self._ribbon.on_click_release = self._unstick
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def update(self):
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m_pos = pg.mouse.get_pos()
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s_pos = self.get_screen_position()
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m_pane_pos = (
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m_pos[0] - s_pos[0],
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m_pos[1] - s_pos[1]
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)
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if self._stuck:
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delta = (
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m_pane_pos[0] - self._m_last_pos[0],
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m_pane_pos[1] - self._m_last_pos[1]
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)
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self.position = (
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self.position[0] + delta[0],
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self.position[1] + delta[1]
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)
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super().update()
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class Slider(Pane):
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def __init__(
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self,
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dimensions: tuple[int,int],
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parent: Pane,
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knob_size: int,
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bar_thickness: int,
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knob_color: tuple[int,int,int] = (255,255,255),
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bar_color: tuple[int,int,int] = (150,150,150)
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):
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self._bar = Pane(
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(dimensions[0], bar_thickness),
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(0, ceil(dimensions[1] / 2) + ceil(bar_thickness / 2)),
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self,
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bar_color
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)
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self._knob = Pane(
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(knob_size, knob_size),
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(0, ceil(dimensions[1] / 2) + ceil(knob_size / 2)),
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self,
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(0,0,0,0),
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background_image=circle(knob_size, knob_color)
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)
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