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| 1 | +# -*- coding: utf-8 -*- |
| 2 | + |
| 3 | +""" |
| 4 | +AnySet attributes editor: Provide list model and helper to edit a AnySet attribute items |
| 5 | +""" |
| 6 | + |
| 7 | +from PySide6.QtCore import ( |
| 8 | + QObject, |
| 9 | + Slot, |
| 10 | + Signal, |
| 11 | + Property, |
| 12 | + QAbstractListModel, |
| 13 | + Qt, |
| 14 | + QModelIndex |
| 15 | +) |
| 16 | + |
| 17 | + |
| 18 | +EXPOSED_ATTR_TYPES = ["StringParam", "File", "IntParam", "FloatParam", "BoolParam"] |
| 19 | + |
| 20 | + |
| 21 | +class AttributesSetModel(QAbstractListModel): |
| 22 | + TypeRole = Qt.UserRole + 1 # Attribute type |
| 23 | + NameRole = Qt.UserRole + 2 # Attribute name |
| 24 | + LabelRole = Qt.UserRole + 3 # Attribute label |
| 25 | + DescriptionRole = Qt.UserRole + 4 # Attribute description |
| 26 | + ValueRole = Qt.UserRole + 5 # Attribute value |
| 27 | + ObjectRole = Qt.UserRole + 6 # Attribute value |
| 28 | + |
| 29 | + def __init__(self, parent=None): |
| 30 | + super().__init__(parent) |
| 31 | + self._items = [] |
| 32 | + |
| 33 | + def roleNames(self): |
| 34 | + return { |
| 35 | + self.TypeRole: b"type", |
| 36 | + self.NameRole: b"name", |
| 37 | + self.LabelRole: b"label", |
| 38 | + self.DescriptionRole: b"description", |
| 39 | + self.ValueRole: b"value", |
| 40 | + self.ObjectRole: b"attributeObject", |
| 41 | + } |
| 42 | + |
| 43 | + def rowCount(self, parent=QModelIndex()): |
| 44 | + return len(self._items) |
| 45 | + |
| 46 | + def data(self, index, role): |
| 47 | + if not index.isValid() or not (0 <= index.row() < len(self._items)): |
| 48 | + return None |
| 49 | + item = self._items[index.row()] |
| 50 | + if role == self.TypeRole: |
| 51 | + return item.get("type", "String") |
| 52 | + if role == self.NameRole: |
| 53 | + return item.get("name", "") |
| 54 | + if role == self.LabelRole: |
| 55 | + return item.get("label", "") |
| 56 | + if role == self.DescriptionRole: |
| 57 | + return item.get("description", "") |
| 58 | + if role == self.ValueRole: |
| 59 | + return item.get("value", "") |
| 60 | + if role == self.ObjectRole: |
| 61 | + return item.get("attributeObject", "") |
| 62 | + return None |
| 63 | + |
| 64 | + def reset(self, items): |
| 65 | + self.beginResetModel() |
| 66 | + self._items = list(items) |
| 67 | + self.endResetModel() |
| 68 | + |
| 69 | + def appendItem(self, item): |
| 70 | + self.beginInsertRows(QModelIndex(), len(self._items), len(self._items)) |
| 71 | + self._items.append(item) |
| 72 | + self.endInsertRows() |
| 73 | + |
| 74 | + def removeByName(self, name): |
| 75 | + for i, item in enumerate(self._items): |
| 76 | + if item.get("name") == name: |
| 77 | + self.beginRemoveRows(QModelIndex(), i, i) |
| 78 | + del self._items[i] |
| 79 | + self.endRemoveRows() |
| 80 | + return True |
| 81 | + return False |
| 82 | + |
| 83 | + |
| 84 | +class NodeAttributeEditor(QObject): |
| 85 | + def __init__(self, parent=None): |
| 86 | + super().__init__(parent) |
| 87 | + self._node = None |
| 88 | + self._attribute = None |
| 89 | + self._model = AttributesSetModel(self) |
| 90 | + |
| 91 | + def refresh(self): |
| 92 | + """Reload the model from the node's current inputs.""" |
| 93 | + if self._node is None: |
| 94 | + self._model.reset([]) |
| 95 | + else: |
| 96 | + self._model.reset(self.listInputs()) |
| 97 | + self.inputsChanged.emit() |
| 98 | + |
| 99 | + def getNode(self): |
| 100 | + return self._node |
| 101 | + |
| 102 | + def setNode(self, node): |
| 103 | + if self._node is node: |
| 104 | + return |
| 105 | + self._node = node |
| 106 | + self.nodeChanged.emit() |
| 107 | + self.refresh() |
| 108 | + |
| 109 | + def getAttribute(self): |
| 110 | + return self._attribute |
| 111 | + |
| 112 | + def setAttribute(self, attribute): |
| 113 | + if self._attribute is attribute: |
| 114 | + return |
| 115 | + self._attribute = attribute |
| 116 | + self.attributeChanged.emit() |
| 117 | + self.refresh() |
| 118 | + |
| 119 | + @Slot(str, str, str, str, str) |
| 120 | + def addInput(self, attrType, name, label, description, value): |
| 121 | + """Add a new input attribute on the node using params dict.""" |
| 122 | + if not name: |
| 123 | + self.errorOccurred.emit("Input name cannot be empty") |
| 124 | + return |
| 125 | + params = { |
| 126 | + "type": attrType, |
| 127 | + "name": name, |
| 128 | + "label": label, |
| 129 | + "description": description, |
| 130 | + "value": value, |
| 131 | + } |
| 132 | + try: |
| 133 | + insertIndex = len(list(self._attribute._value)) |
| 134 | + self._attribute.insertAttribute(params, index=insertIndex) |
| 135 | + self._model.appendItem(params) |
| 136 | + except Exception as e: |
| 137 | + self.errorOccurred.emit(str(e)) |
| 138 | + |
| 139 | + @Slot(str) |
| 140 | + def removeInput(self, inputName): |
| 141 | + """Remove the input attribute named inputName from the node.""" |
| 142 | + try: |
| 143 | + for attr in list(self._attribute._value): |
| 144 | + if attr.name == inputName: |
| 145 | + self._attribute.removeAttribute(attr) |
| 146 | + self._model.removeByName(inputName) |
| 147 | + except Exception as e: |
| 148 | + self.errorOccurred.emit(str(e)) |
| 149 | + |
| 150 | + def listInputs(self): |
| 151 | + """List inputs (build the list model displayed in the UI).""" |
| 152 | + inputs = list(self._attribute.value) |
| 153 | + inputsParams = [] |
| 154 | + for i in range(len(inputs)): |
| 155 | + input_ = inputs[i] |
| 156 | + inputParams = { |
| 157 | + "type": input_._desc.__class__.__name__, |
| 158 | + "name": input_.name, |
| 159 | + "label": input_.label, |
| 160 | + "description": input_._desc.description, |
| 161 | + "value": input_.value, |
| 162 | + "attributeObject": input_, |
| 163 | + } |
| 164 | + inputsParams.append(inputParams) |
| 165 | + return inputsParams |
| 166 | + |
| 167 | + attrTypes = Property(list, lambda _: EXPOSED_ATTR_TYPES, constant=True) |
| 168 | + inputsChanged = Signal() |
| 169 | + errorOccurred = Signal(str) |
| 170 | + nodeChanged = Signal() |
| 171 | + node = Property(QObject, getNode, setNode, notify=nodeChanged) |
| 172 | + attributeChanged = Signal() |
| 173 | + attribute = Property(QObject, getAttribute, setAttribute, notify=attributeChanged) |
| 174 | + inputsModel = Property(QObject, lambda self: self._model, constant=True) |
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