smillmorel
612936a00b
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107 lines
4 KiB
Python
107 lines
4 KiB
Python
"""Viewport orientation triad is present and survives every re-render path.
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Before this change the 3D viewport had no X/Y/Z corner marker — users
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who rotated the camera off the default isometric view lost track of
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which world axis was which. The triad is now built once during the
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canvas's scene-furniture setup and lives in screen-space via PyVista's
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``vtkOrientationMarkerWidget``, so it is not affected by the regular
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actor rebuilds in :meth:`ModelRenderer.render` /
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:meth:`ModelRenderer._teardown_all`.
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These tests pin the contract:
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- Triad exists right after ``MainWindow`` construction.
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- It still exists after a tree refresh (which calls
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``ModelRenderer.render`` through ``MainWindow._on_project_changed``).
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- It still exists after loading an empty project, then a small project
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with a node — the most common real-world re-render path.
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- The triad carries the conventional X / Y / Z labels.
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- It is pinned to the lower-left viewport corner.
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"""
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from __future__ import annotations
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import pytest
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pytest.importorskip("PySide6")
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from otko.core import Node
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@pytest.mark.gui
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def test_axes_widget_exists_after_window_construction(qtbot) -> None: # type: ignore[no-untyped-def]
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from otko.views.main_window import MainWindow
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mw = MainWindow()
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qtbot.addWidget(mw)
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aw = mw._canvas.renderer.axes_widget
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assert aw is not None
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# PyVista binds a vtkOrientationMarkerWidget; the orientation marker
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# it carries is a vtkAxesActor with X/Y/Z label text.
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actor = aw.GetOrientationMarker()
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assert actor.GetXAxisLabelText() == "X"
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assert actor.GetYAxisLabelText() == "Y"
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assert actor.GetZAxisLabelText() == "Z"
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# Pinned to the lower-left viewport patch (normalized 0..1 coords).
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vp = aw.GetViewport()
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assert vp[0] == pytest.approx(0.0)
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assert vp[1] == pytest.approx(0.0)
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@pytest.mark.gui
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def test_axes_widget_survives_tree_refresh(qtbot) -> None: # type: ignore[no-untyped-def]
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"""``MainWindow._refresh_tree`` triggers a renderer rebuild via
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``_on_project_changed``; the orientation widget must stay put."""
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from otko.views.main_window import MainWindow
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mw = MainWindow()
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qtbot.addWidget(mw)
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aw_before = mw._canvas.renderer.axes_widget
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mw._vm.new_project(ndm=3, ndf=6)
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mw._vm.project.nodes.extend(
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[
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Node(id=1, coords=(0, 0, 0)),
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Node(id=2, coords=(3, 0, 0)),
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]
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)
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mw._refresh_tree(mw._vm.project)
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aw_after = mw._canvas.renderer.axes_widget
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# Same widget instance — proves the marker survived the rebuild.
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assert aw_after is aw_before
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actor = aw_after.GetOrientationMarker()
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assert actor.GetXAxisLabelText() == "X"
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assert actor.GetYAxisLabelText() == "Y"
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assert actor.GetZAxisLabelText() == "Z"
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@pytest.mark.gui
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def test_axes_widget_survives_empty_then_loaded_project(qtbot) -> None: # type: ignore[no-untyped-def]
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"""The two re-render paths the engineer hits during a session:
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empty project → first node added → tree refreshed. The triad must
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still be in the lower-left corner with all three labels."""
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from otko.views.main_window import MainWindow
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mw = MainWindow()
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qtbot.addWidget(mw)
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aw_before = mw._canvas.renderer.axes_widget
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assert aw_before is not None
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# Empty project — model renderer builds no actors, just the grid.
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mw._vm.new_project(ndm=3, ndf=6)
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mw._refresh_tree(mw._vm.project)
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assert mw._canvas.renderer.axes_widget is aw_before
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# Small project with one node — exercises the node-actor rebuild path.
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mw._vm.project.nodes.append(Node(id=1, coords=(1, 2, 3)))
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mw._refresh_tree(mw._vm.project)
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assert mw._canvas.renderer.axes_widget is aw_before
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# Same after a full canvas refresh too — show_project rebuilds actors.
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mw._canvas.show_project(mw._vm.project)
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assert mw._canvas.renderer.axes_widget is aw_before
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actor = mw._canvas.renderer.axes_widget.GetOrientationMarker()
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assert actor.GetXAxisLabelText() == "X"
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assert actor.GetYAxisLabelText() == "Y"
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assert actor.GetZAxisLabelText() == "Z"
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