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[ui] UIGraph: add hoveredNode property + node hovering visual feedback

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* keep track of currently hovered node in UIGraph on Python side
* Node: show border on hover + make MouseArea contain everything else to always get hover events, even when cursor is over children attribute pins
This commit is contained in:
Yann Lanthony 2018-12-06 19:13:17 +01:00
parent 5b991053a8
commit 05854ed897
3 changed files with 124 additions and 104 deletions
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10
meshroom/ui/graph.py
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@ -202,6 +202,7 @@ class UIGraph(QObject):
self._sortedDFSChunks = QObjectListModel(parent=self)
self._layout = GraphLayout(self)
self._selectedNode = None
self._hoveredNode = None
if filepath:
self.load(filepath)
@ -236,6 +237,7 @@ class UIGraph(QObject):
def clear(self):
if self._graph:
self.clearNodeHover()
self.clearNodeSelection()
self._graph.deleteLater()
self._graph = None
@ -472,6 +474,10 @@ class UIGraph(QObject):
""" Clear node selection. """
self.selectedNode = None
def clearNodeHover(self):
""" Reset currently hovered node to None. """
self.hoveredNode = None
undoStack = Property(QObject, lambda self: self._undoStack, constant=True)
graphChanged = Signal()
graph = Property(Graph, lambda self: self._graph, notify=graphChanged)
@ -490,3 +496,7 @@ class UIGraph(QObject):
selectedNodeChanged = Signal()
# Currently selected node
selectedNode = makeProperty(QObject, "_selectedNode", selectedNodeChanged, clearNodeSelection)
hoveredNodeChanged = Signal()
# Currently hovered node
hoveredNode = makeProperty(QObject, "_hoveredNode", hoveredNodeChanged, clearNodeHover)