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_base.py
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249 lines (187 loc) · 6.98 KB
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import enum
from typing import Literal
import numpy as np
from imgui_bundle import imgui
from ..layouts._figure import Figure
GUI_EDGES = ["right", "bottom", "top"]
class BaseGUI:
"""
Base class for all ImGUI based GUIs, windows and popups
The main purpose of this base is for setting a unique ID between multiple figs with identical UI elements
This ID can be pushed in subclasses within the `update()` method
"""
ID_COUNTER: int = 0
def __init__(self):
BaseGUI.ID_COUNTER += 1
self._id_counter = BaseGUI.ID_COUNTER
def update(self):
"""must be implemented in subclass"""
raise NotImplementedError
class Window(BaseGUI):
"""Base class for imgui windows drawn within Figures"""
pass
class EdgeWindow(Window):
def __init__(
self,
figure: Figure,
size: int,
location: Literal["bottom", "right", "top"],
title: str,
window_flags: enum.IntFlag = imgui.WindowFlags_.no_collapse
| imgui.WindowFlags_.no_resize,
*args,
**kwargs,
):
"""
A base class for imgui windows displayed at the bottom or top edge of a Figure
Parameters
----------
figure: Figure
Figure instance that this window will be placed in
size: int
width or height of the window, depending on its location
location: str, "bottom" | "right"
location of the window
title: str
window title
window_flags: enum.IntFlag
Window flag enum, can be compared with ``|`` operator. Valid flags are:
.. code-block:: py
imgui.WindowFlags_.no_title_bar
imgui.WindowFlags_.no_resize
imgui.WindowFlags_.no_move
imgui.WindowFlags_.no_scrollbar
imgui.WindowFlags_.no_scroll_with_mouse
imgui.WindowFlags_.no_collapse
imgui.WindowFlags_.always_auto_resize
imgui.WindowFlags_.no_background
imgui.WindowFlags_.no_saved_settings
imgui.WindowFlags_.no_mouse_inputs
imgui.WindowFlags_.menu_bar
imgui.WindowFlags_.horizontal_scrollbar
imgui.WindowFlags_.no_focus_on_appearing
imgui.WindowFlags_.no_bring_to_front_on_focus
imgui.WindowFlags_.always_vertical_scrollbar
imgui.WindowFlags_.always_horizontal_scrollbar
imgui.WindowFlags_.no_nav_inputs
imgui.WindowFlags_.no_nav_focus
imgui.WindowFlags_.unsaved_document
imgui.WindowFlags_.no_docking
imgui.WindowFlags_.no_nav
imgui.WindowFlags_.no_decoration
imgui.WindowFlags_.no_inputs
*args
additional args for the GUI
**kwargs
additional kwargs for teh GUI
"""
super().__init__()
if location not in GUI_EDGES:
f"GUI does not have a valid location, valid locations are: {GUI_EDGES}, you have passed: {location}"
self._figure = figure
self._size = size
self._location = location
self._title = title
self._window_flags = window_flags
self._x, self._y, self._width, self._height = self.get_rect()
self._figure.canvas.add_event_handler(self._set_rect, "resize")
@property
def size(self) -> int | None:
"""width or height of the edge window"""
return self._size
@size.setter
def size(self, value):
if not isinstance(value, int):
raise TypeError
self._size = value
@property
def location(self) -> str:
"""location of the window"""
return self._location
@property
def x(self) -> int:
"""canvas x position of the window"""
return self._x
@property
def y(self) -> int:
"""canvas y position of the window"""
return self._y
@property
def width(self) -> int:
"""with the window"""
return self._width
@property
def height(self) -> int:
"""height of the window"""
return self._height
def _set_rect(self, *args):
self._x, self._y, self._width, self._height = self.get_rect()
def get_rect(self) -> tuple[int, int, int, int]:
"""
Compute the rect that defines the area this GUI is drawn to
Returns
-------
int, int, int, int
x_pos, y_pos, width, height
"""
width_canvas, height_canvas = self._figure.canvas.get_logical_size()
match self._location:
case "bottom":
x_pos = 0
y_pos = height_canvas - self.size
width, height = (width_canvas, self.size)
case "right":
x_pos, y_pos = (width_canvas - self.size, 0)
width, height = (self.size, height_canvas)
if self._figure.guis["bottom"] is not None:
height -= self._figure.guis["bottom"].size
if self._figure.guis["top"] is not None:
# decrease the height
height -= self._figure.guis["top"].size
# increase the y start
y_pos += self._figure.guis["top"].size
case "top":
x_pos, y_pos = (0, 0)
width, height = (width_canvas, self.size)
return x_pos, y_pos, width, height
def draw_window(self):
"""helps simplify using imgui by managing window creation & position, and pushing/popping the ID"""
# window position & size
x, y, w, h = self.get_rect()
imgui.set_next_window_size((self.width, self.height))
imgui.set_next_window_pos((self.x, self.y))
# imgui.set_next_window_pos((x, y))
# imgui.set_next_window_size((w, h))
flags = self._window_flags
# begin window
imgui.begin(self._title, p_open=None, flags=flags)
# push ID to prevent conflict between multiple figs with same UI
imgui.push_id(self._id_counter)
# draw stuff from subclass into window
self.update()
# pop ID
imgui.pop_id()
# end the window
imgui.end()
def update(self):
"""Implement your GUI here and it will be drawn within the window. See the GUI examples"""
raise NotImplementedError
class Popup(BaseGUI):
def __init__(self, figure: Figure, *args, **kwargs):
"""
Base class for creating ImGUI popups within Figures
Parameters
----------
figure: Figure
Figure instance
*args
any args to pass to subclass constructor
**kwargs
any kwargs to pass to subclass constructor
"""
super().__init__()
self._figure = figure
self.is_open = False
def open(self, pos: tuple[int, int], *args, **kwargs):
"""implement in subclass"""
raise NotImplementedError