Source code for magicclass.mgui_ext

from __future__ import annotations
from typing import Callable, Iterable, Any
import re
from qtpy.QtWidgets import QPushButton
from qtpy.QtGui import QIcon
from qtpy.QtCore import QSize
from magicgui.widgets import Container, PushButton, FunctionGui
from magicgui.widgets._function_gui import _function_name_pointing_to_widget
from matplotlib.colors import to_rgb

# magicgui widgets that need to be extended to fit into magicclass

[docs]class FunctionGuiPlus(FunctionGui): """ FunctionGui class with a parameter recording functionality. """ def __call__(self, *args: Any, **kwargs: Any): sig = self.__signature__ try: bound = sig.bind(*args, **kwargs) except TypeError as e: if "missing a required argument" in str(e): match = re.search("argument: '(.+)'", str(e)) missing = match.groups()[0] if match else "<param>" msg = ( f"{e} in call to '{self._callable_name}{sig}'.\n" "To avoid this error, you can bind a value or callback to the " f"parameter:\n\n {self._callable_name}.{missing}.bind(value)" "\n\nOr use the 'bind' option in the magicgui decorator:\n\n" f" @magicgui({missing}={{'bind': value}})\n" f" def {self._callable_name}{sig}: ..." ) raise TypeError(msg) from None else: raise bound.apply_defaults() self._previous_bound = bound # This is very important!! self._tqdm_depth = 0 # reset the tqdm stack count with _function_name_pointing_to_widget(self): value = self._function(*bound.args, **bound.kwargs) self._call_count += 1 if self._result_widget is not None: with self._result_widget.changed.blocked(): self._result_widget.value = value return_type = sig.return_annotation if return_type: from magicgui.type_map import _type2callback for callback in _type2callback(return_type): callback(self, value, return_type) self.called.emit(value) return value
[docs]class PushButtonPlus(PushButton): """ A Qt specific PushButton widget with a magicgui bound. """ def __init__(self, text: str|None = None, **kwargs): super().__init__(text=text, **kwargs) self.native: QPushButton self._icon_path = None self.mgui: Container = None @property def background_color(self): return self.native.palette().button().color().getRgb() @background_color.setter def background_color(self, color: str|Iterable[float]): stylesheet = self.native.styleSheet() d = _stylesheet_to_dict(stylesheet) d.update({"background-color": _to_rgb(color)}) stylesheet = _dict_to_stylesheet(d) self.native.setStyleSheet(stylesheet) @property def icon_path(self): return self._icon_path @icon_path.setter def icon_path(self, path:str): icon = QIcon(path) self.native.setIcon(icon) @property def icon_size(self): qsize = self.native.iconSize() return qsize.width(), qsize.height() @icon_size.setter def icon_size(self, size:tuple[int, int]): w, h = size self.native.setIconSize(QSize(w, h)) @property def font_size(self): return self.native.font().pointSize() @font_size.setter def font_size(self, size:int): font = self.native.font() font.setPointSize(size) self.native.setFont(font) @property def font_color(self): return self.native.palette().text().color().getRgb() @font_color.setter def font_color(self, color:str|Iterable[float]): stylesheet = self.native.styleSheet() d = _stylesheet_to_dict(stylesheet) d.update({"color": _to_rgb(color)}) stylesheet = _dict_to_stylesheet(d) self.native.setStyleSheet(stylesheet) @property def font_family(self): return self.native.font().family() @font_family.setter def font_family(self, family:str): font = self.native.font() font.setFamily(family) self.native.setFont(font)
[docs] def from_options(self, options: dict[str] | Callable): if callable(options): try: options = options.__signature__.caller_options except AttributeError: return None for k, v in options.items(): v = options.get(k, None) if v is not None: setattr(self, k, v) return None
def _to_rgb(color): if isinstance(color, str): color = to_rgb(color) rgb = ",".join(str(max(min(int(c*255), 255), 0)) for c in color) return f"rgb({rgb})" def _stylesheet_to_dict(stylesheet:str): if stylesheet == "": return {} lines = stylesheet.split(";") d = dict() for line in lines: k, v = line.split(":") d[k.strip()] = v.strip() return d def _dict_to_stylesheet(d:dict): stylesheet = [f"{k}: {v}" for k, v in d.items()] return ";".join(stylesheet)