Separate Qt backend from public-facing API#5
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Hello @kne42! Thanks for submitting the PR.
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AhmetCanSolak
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Everything seems great except I am not sure if we are consistent with underscoring members for every class, if we going to keep it better to check the entire repository and fix where required. Thanks!
…visible
The visibilitychanged slot currently updates the title regardless of the visibility. We are seeing a crash when the viewer is shut down and a signal is sent to the visibilitychanged slot. That executes some code which causes a segfault in the python process[1]. This PR changes the visibility changed slot to only update the title bar if the widget is visible.
[1]
```
* frame #0: 0x0000000115cc96e4 QtWidgets`QWidgetPrivate::reparentFocusWidgets(QWidget*) + 356
frame napari#1: 0x0000000115cb99cf QtWidgets`QWidget::setParent(QWidget*, QFlags<Qt::WindowType>) + 911
frame napari#2: 0x0000000115cb82c0 QtWidgets`QWidgetPrivate::init(QWidget*, QFlags<Qt::WindowType>) + 688
frame napari#3: 0x0000000115d73e5e QtWidgets`QFrame::QFrame(QFramePrivate&, QWidget*, QFlags<Qt::WindowType>) + 14
frame napari#4: 0x0000000115dc3705 QtWidgets`QLabel::QLabel(QWidget*, QFlags<Qt::WindowType>) + 277
frame napari#5: 0x0000000116503189 QtWidgets.abi3.so`Sbk_QLabel_Init(_object*, _object*, _object*) + 1497
frame napari#6: 0x000000010015f84d Python`wrap_init + 12
frame napari#7: 0x0000000100113e64 Python`_PyObject_FastCallDict + 143
frame napari#8: 0x00000001001b17a2 Python`call_function + 439
frame napari#9: 0x00000001001aa46b Python`_PyEval_EvalFrameDefault + 3078
frame napari#10: 0x00000001001b1ee2 Python`_PyEval_EvalCodeWithName + 1638
frame napari#11: 0x00000001001b281b Python`_PyFunction_FastCallDict + 447
frame napari#12: 0x0000000100113e99 Python`_PyObject_FastCallDict + 196
frame napari#13: 0x0000000100113fa3 Python`_PyObject_Call_Prepend + 131
frame napari#14: 0x0000000100113d1e Python`PyObject_Call + 101
frame napari#15: 0x000000010015f7d1 Python`slot_tp_init + 57
frame napari#16: 0x000000010015c782 Python`type_call + 178
frame napari#17: 0x0000000100113e64 Python`_PyObject_FastCallDict + 143
frame napari#18: 0x00000001001141fa Python`_PyObject_FastCallKeywords + 97
frame napari#19: 0x00000001001b17a2 Python`call_function + 439
frame napari#20: 0x00000001001aa4fb Python`_PyEval_EvalFrameDefault + 3222
frame napari#21: 0x00000001001b28e0 Python`_PyFunction_FastCall + 110
frame napari#22: 0x0000000100113e99 Python`_PyObject_FastCallDict + 196
frame napari#23: 0x0000000100113fa3 Python`_PyObject_Call_Prepend + 131
frame napari#24: 0x0000000100113d1e Python`PyObject_Call + 101
frame napari#25: 0x000000011126f146 libpyside2.abi3.5.14.dylib`PySide::SignalManager::callPythonMetaMethod(QMetaMethod const&, void**, _object*, bool) + 534
frame napari#26: 0x000000011126eb77 libpyside2.abi3.5.14.dylib`PySide::SignalManager::qt_metacall(QObject*, QMetaObject::Call, int, void**) + 519
```
Let tablet mode respect distance threshold
Co-authored-by: Lucy Liu <jliu176@gmail.com> Co-authored-by: Juan Nunez-Iglesias <jni@fastmail.com> Closes napari/docs#3
Qt-related code has been moved togui.elements.qtand public-facing elements now contain and interface with a private-facing_qtattribute that references the actualQtobject.Additionally:
ImageContainerhas been renamed toImageLayercontainerhas been renamed tolayerImageWindowhas been renamed toWindowImageViewerWidgethas been renamed toViewerViewer.layout_typehas been renamed toViewer.layoutViewerhas a newscreenshotmethod which renders the canvas as if the user took a screenshot. This returns the correspondingnumpyarray.Viewerhas privatizedcanvas,view, andcontainerlayout(now_layout). However, it now provides thecameraattribute.