Circumvented the most problematic bugs in the 3D view, it seems better but might still cause trouble when switching workbenches due to the premature destruction of all descendants of the widgets?
This commit is contained in:
Suzanne Soy
parent
cca8e98d11
commit
b7e29d78f8
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@ -11,11 +11,14 @@ reload(SearchTools)
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TODO for this project:
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* find a way to use the FreeCAD 3D viewer without segfaults or disappearing widgets
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* fix sync problem when moving too fast
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OK find a way to use the FreeCAD 3D viewer without segfaults or disappearing widgets
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OK fix sync problem when moving too fast
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* split the list of tools vs. document objects (possibly already done?)
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* save to disk the list of tools
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* always display including when switching workbenches
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OK always display including when switching workbenches
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* slightly larger popup widget to avoid scrollbar for the extra info for document objects
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* turn this into a standalone mod
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* speed up startup to show the box instantly and do the slow loading on first click.
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"""
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################################""
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@ -160,8 +163,9 @@ actionHandlers = {
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# For some reason, the viewer always works except when used for two consecutive items in the search results: it then disappears after a short zoom-in+zoom-out animation.
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# I'm giving up on getting this viewer to work in a clean way, and will try swapping two instances so that the same one is never used twice in a row.
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safeViewerInstanceA = None
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safeViewerInstanceB = None
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# Also, in order to avoid segfaults when the module is reloaded (which causes the previous viewer to be garbage collected at some point), we're using a global property that will survive module reloads.
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if not hasattr(App, '_SearchTools3DViewer'):
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App._SearchTools3DViewer = None
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import pivy
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class DocumentObjectToolTipWidget(QtGui.QWidget):
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@ -173,16 +177,13 @@ class DocumentObjectToolTipWidget(QtGui.QWidget):
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description.setAlignment(QtCore.Qt.AlignTop)
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description.setText(html)
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global safeViewerInstanceA, safeViewerInstanceB
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if safeViewerInstanceA is None:
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if App._SearchTools3DViewer is None:
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oldFocus = QtGui.QApplication.focusWidget()
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safeViewerInstanceA = SafeViewer()
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safeViewerInstanceB = SafeViewer()
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App._SearchTools3DViewer = SafeViewer()
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oldFocus.setFocus()
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# Tried setting the preview to a fixed size to prevent it from disappearing when changing its contents, this sets it to a fixed size but doesn't actually pick the size, .resize does that but isn't enough to fix the bug.
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#safeViewerInstance.setSizePolicy(QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Fixed))
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self.preview = safeViewerInstanceA
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safeViewerInstanceA, safeViewerInstanceB = safeViewerInstanceB, safeViewerInstanceA
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self.preview = App._SearchTools3DViewer
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obj = App.getDocument(str(nfo['toolTip']['docName'])).getObject(str(nfo['toolTip']['name']))
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## dummy preview:
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@ -197,15 +198,22 @@ class DocumentObjectToolTipWidget(QtGui.QWidget):
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#myCustomNode.addChild(cub)
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#self.preview.viewer.getViewer().setSceneGraph(myCustomNode)
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# Tried hiding/detaching the preview to prevent it from disappearing when changing its contents
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self.preview.viewer.stopAnimating()
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self.preview.viewer.getViewer().setSceneGraph(obj.ViewObject.RootNode)
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self.preview.viewer.fitAll()
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# This is really a bad way to do this… to prevent the setExtraInfo function from
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# finalizing the object, we remove the parent ourselves.
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oldParent = self.preview.parent()
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lay = QtGui.QVBoxLayout()
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self.setLayout(lay)
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lay.addWidget(description)
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lay.addWidget(self.preview)
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if oldParent is not None:
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oldParent.hide() # hide before detaching, or we have widgets floating as their own window that appear for a split second in some cases.
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oldParent.setParent(None)
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# Tried hiding/detaching the preview to prevent it from disappearing when changing its contents
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self.preview.viewer.stopAnimating()
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self.preview.viewer.getViewer().setSceneGraph(obj.ViewObject.RootNode)
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self.preview.viewer.setCameraOrientation(App.Rotation(1,1,0, 0.2))
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self.preview.viewer.fitAll()
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def finalizer(self):
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#self.preview.finalizer()
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@ -279,6 +287,8 @@ class SearchBox(QtGui.QLineEdit):
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self.extraInfo.setWindowFlag(QtGui.Qt.FramelessWindowHint)
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self.extraInfo.setLayout(QtGui.QVBoxLayout())
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self.extraInfo.layout().setContentsMargins(0,0,0,0)
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self.setExtraInfoIsActive = False
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self.pendingExtraInfo = None
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# Connect signals and slots
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self.textChanged.connect(self.filterModel)
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self.listView.clicked.connect(lambda x: self.selectResult('select', x))
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@ -438,20 +448,36 @@ class SearchBox(QtGui.QLineEdit):
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elif len(deselected) > 0:
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self.hideExtraInfo()
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def setExtraInfo(self, index):
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# TODO: use an atomic swap or mutex if possible
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if self.setExtraInfoIsActive:
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self.pendingExtraInfo = index
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#print("boom")
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else:
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self.setExtraInfoIsActive = True
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#print("lock")
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# setExtraInfo can be called multiple times while this function is running,
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# so just before existing we check for the latest pending call and execute it,
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# if during that second execution some other calls are made the latest of those will
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# be queued by the code a few lines above this one, and the loop will continue processing
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# until an iteration during which no further call was made.
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while True:
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nfo = str(index.model().itemData(index.siblingAtColumn(3))[0])
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# TODO: move this outside of this class, probably use a single metadata
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metadata = str(index.model().itemData(index.siblingAtColumn(2))[0])
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nfo = deserializeItemGroup(json.loads(nfo))
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nfo['action'] = json.loads(nfo['action'])
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toolTipWidget = toolTipHandlers[nfo['action']['handler']](nfo)
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#while len(self.extraInfo.children()) > 0:
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# self.extraInfo.children()[0].setParent(None)
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w = self.extraInfo.layout().takeAt(0)
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toolTipWidget = toolTipHandlers[nfo['action']['handler']](nfo)
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while w:
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if hasattr(w.widget(), 'finalizer'):
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# The 3D viewer segfaults very easily if it is used after being destroyed, and some Python/C++ interop seems to overzealously destroys some widgets, including this one, too soon?
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# Ensuring that we properly detacth the 3D viewer widget before discarding its parent seems to avoid these crashes.
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print('FINALIZER')
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w.widget().finalizer()
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if w.widget() is not None:
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w.widget().hide() # hide before detaching, or we have widgets floating as their own window that appear for a split second in some cases.
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w.widget().setParent(None)
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w = self.extraInfo.layout().takeAt(0)
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self.extraInfo.layout().addWidget(toolTipWidget)
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@ -460,6 +486,13 @@ class SearchBox(QtGui.QLineEdit):
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#toolTipHTML = toolTipHandlers[nfo['action']['handler']](nfo)
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#self.extraInfo.setText(toolTipHTML)
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self.setFloatingWidgetsGeometry()
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if self.pendingExtraInfo is not None:
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index = self.pendingExtraInfo
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self.pendingExtraInfo = None
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else:
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break
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#print("unlock")
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self.setExtraInfoIsActive = False
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def clearExtraInfo(self):
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self.extraInfo.setText('')
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def showExtraInfo(self):
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@ -639,6 +672,7 @@ def refreshToolbars(loadAllWorkbenches = True):
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geo.setSize(lbl.sizeHint())
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lbl.setGeometry(geo)
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lbl.repaint()
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FreeCADGui.updateGui() # Probably slower with this, because it redraws the entire GUI with all tool buttons changed etc. but allows the label to actually be updated, and it looks nice and gives a quick overview of all the workbenches…
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try:
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FreeCADGui.activateWorkbench(wb)
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except:
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@ -653,18 +687,20 @@ def refreshToolbars(loadAllWorkbenches = True):
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# Avoid garbage collection by storing the action in a global variable
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wax = None
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def addToolSearchBox():
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global wax, itemGroups, serializedItemGroups
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def init():
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global itemGroups, serializedItemGroups
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if itemGroups is None:
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if serializedItemGroups is None:
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refreshToolbars(False)
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else:
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itemGroups = deserialize(serializedItemGroups)
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def addToolSearchBox():
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global wax, sea
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sea = SearchBox(itemGroups)
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mw = FreeCADGui.getMainWindow()
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mbr = mw.findChildren(QtGui.QToolBar, 'File')[0]
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# Create search box widget
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sea = SearchBox(itemGroups)
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def onResultSelected(index, metadata):
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action = json.loads(metadata)
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actionHandlers[action['handler']](action)
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@ -672,7 +708,9 @@ def addToolSearchBox():
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wax = QtGui.QWidgetAction(None)
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wax.setDefaultWidget(sea)
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#mbr.addWidget(sea)
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print("addAction" + repr(mbr) + ' add(' + repr(wax))
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#print("addAction" + repr(mbr) + ' add(' + repr(wax))
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mbr.addAction(wax)
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init()
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addToolSearchBox()
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FreeCADGui.getMainWindow().workbenchActivated.connect(addToolSearchBox)
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