pygra.mainwindow

mainwindow.py — MainWindow with menu bar, fit layer management, custom toolbar

class pygra.mainwindow.FitLayer(label, x, y, color, source_label, linestyle='--', linewidth=1.8)[source]

Bases: object

Data container for a single fit or interpolation curve.

Instances are created by MainWindow._fit_active() and stored in MainWindow.fit_layers.

Parameters:

  • label (str) – Display label shown in the fit panel and plot legend.

  • x (numpy.ndarray) – x-coordinates of the fit curve.

  • y (numpy.ndarray) – y-coordinates of the fit curve.

  • color (str) – Hex color string for the curve.

  • source_label (str) – Label of the dataset series this fit was computed from.

  • linestyle (str, optional) – Matplotlib linestyle string. Default is "--".

  • linewidth (float, optional) – Line width in points. Default is 1.8.

visible

Whether the layer is currently shown on the plot. Initialised to True.

Type:

bool

class pygra.mainwindow.FitLayerWidget(layer, on_remove, on_toggle, on_edit, parent=None)[source]

Bases: QWidget

Row widget in the fit panel representing one FitLayer.

Displays a visibility checkbox, a color dot, the layer label with its source series, and a remove button. Double-clicking the label row opens the fit-layer appearance editor.

Parameters:

  • layer (FitLayer) – The fit layer this widget controls.

  • on_remove (callable) – Called with layer when the ✕ button is clicked.

  • on_toggle (callable) – Called with (layer, visible: bool) when the checkbox changes.

  • on_edit (callable) – Called with (layer, widget) on double-click.

  • parent (QWidget, optional) – Parent widget.

mouseDoubleClickEvent(self, a0: QMouseEvent | None)[source]
class pygra.mainwindow.MainWindow[source]

Bases: QMainWindow

Application main window for PyGRA.

Manages the left-side series panel (one DatasetWidget per series tab), the matplotlib canvas, axis controls, a fit-layer panel, the menu bar, and a custom toolbar. Application state can be saved and restored as JSON session files.

datasets

All loaded datasets. A single dataset may be shared between multiple series widgets (via the duplicate action).

Type:

list of DataSet

dataset_widgets

One widget per visible series tab, in tab order.

Type:

list of DatasetWidget

fit_layers

Fit and interpolation curves currently overlaid on the plot.

Type:

list of FitLayer

style_settings

Active global style settings; mirrors constants.DEFAULT_STYLE_SETTINGS.

Type:

dict

closeEvent(event)[source]

Auto-save geometry on close.