Add test for data views

tests/qt/flint/widgets/test_data_views.py

+import pytest
+from silx.gui import qt
+from bliss.flint.widgets import delegates
+from bliss.flint.widgets import data_views
+
+
+class ViewDelegate1(qt.QStyledItemDelegate):
+    def initStyleOption(self, option: qt.QStyleOptionViewItem, index: qt.QModelIndex):
+        text = str(index.data(delegates.ObjectRole))
+        option.text = text + "!!"
+
+        color = qt.QColor()
+        color.setNamedColor(text)
+        pixmap = qt.QPixmap(16, 16)
+        pixmap.fill(color)
+        icon = qt.QIcon(pixmap)
+        option.icon = icon
+        option.features |= qt.QStyleOptionViewItem.HasDecoration
+        option.decorationSize = qt.QSize(16, 16)
+
+
+class ViewDelegate2(qt.QStyledItemDelegate):
+    def initStyleOption(self, option: qt.QStyleOptionViewItem, index: qt.QModelIndex):
+        # scanItem = index.data(delegates.ObjectRole)
+        text = str(index.data())
+        option.text = text + "?"
+
+
+class ViewDelegate3(qt.QStyledItemDelegate):
+    EDITOR_ALWAYS_OPEN = True
+
+    def createEditor(self, parent, option, index):
+        if not index.isValid():
+            return super(ViewDelegate3, self).createEditor(parent, option, index)
+        editor = qt.QLineEdit(parent=parent)
+        editor.destroyed.connect(lambda: print("destroyed"))
+        editor.textChanged.connect(self.__changed)
+        return editor
+
+    def setEditorData(self, editor: qt.QLineEdit, index):
+        value = index.data(delegates.ObjectRole)
+        editor.blockSignals(True)
+        editor.setText(value)
+        editor.blockSignals(False)
+
+    def __changed(self):
+        sender = self.sender()
+        self.commitData.emit(sender)
+
+    def setModelData(self, editor: qt.QLineEdit, model, index):
+        pass
+
+
+@pytest.fixture
+def tree():
+    tree = data_views.DataTreeView()
+    tree.setColumn(0, "col1", delegate=ViewDelegate1)
+    tree.setColumn(1, "col2", delegate=ViewDelegate2)
+    tree.setColumn(2, "col3", delegate=ViewDelegate3)
+    tree.setDisplayedColumns([0, 2])
+    window = qt.QMainWindow()
+    window.setCentralWidget(tree)
+    window.setVisible(True)
+    yield tree
+    window.deleteLater()
+
+
+@pytest.fixture
+def table():
+    table = data_views.VDataTableView()
+    table.setColumn(0, "col1", delegate=ViewDelegate1)
+    table.setColumn(1, "col2", delegate=ViewDelegate2)
+    table.setColumn(2, "col3", delegate=ViewDelegate3)
+    table.setDisplayedColumns([0, 2])
+    window = qt.QMainWindow()
+    window.setCentralWidget(table)
+    window.setVisible(True)
+    yield table
+    window.deleteLater()
+
+
+def test_tree_view(qapp, tree):
+    """
+    Create a tree with a model
+
+    Make sure the amount of columns, cells and editors are properly displayed
+    """
+    tree.setDisplayedColumns([0, 2])
+    item = qt.QStandardItem("blue")
+    item2 = qt.QStandardItem("red")
+    for i in [item, item2]:
+        i.setData(i.text(), role=delegates.ObjectRole)
+    model = qt.QStandardItemModel()
+    root = model.invisibleRootItem()
+    root.appendRow(item)
+    item.appendRow(item2)
+
+    tree.setSourceModel(model)
+    qapp.processEvents()
+
+    header = tree.header()
+    assert header.hiddenSectionCount() == 1
+
+    editor = tree.indexWidget(item.index(), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+    tree.expand(item.index())
+    editor = tree.indexWidget(item2.index(), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+
+def test_tree_view__reset_model(qapp, tree):
+    """
+    Create a tree without model, set a new one
+
+    Make sure the amount of columns, cells and editors are properly displayed
+    """
+    tree.setDisplayedColumns([0, 2])
+    qapp.processEvents()
+
+    item = qt.QStandardItem("blue")
+    item2 = qt.QStandardItem("red")
+    for i in [item, item2]:
+        i.setData(i.text(), role=delegates.ObjectRole)
+    model = qt.QStandardItemModel()
+    root = model.invisibleRootItem()
+    root.appendRow(item)
+    item.appendRow(item2)
+    tree.setSourceModel(model)
+    qapp.processEvents()
+
+    header = tree.header()
+    assert header.hiddenSectionCount() == 1
+
+    editor = tree.indexWidget(item.index(), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+    tree.expand(item.index())
+    editor = tree.indexWidget(item2.index(), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+
+def test_table_view(qapp, table):
+    """
+    Create a table with a model
+
+    Make sure the amount of columns, cells and editors are properly displayed
+    """
+    model = data_views.ObjectListModel()
+    model.setObjectList(["blue", "red"])
+    table.setSourceModel(model)
+    qapp.processEvents()
+
+    header = table.horizontalHeader()
+    assert header.hiddenSectionCount() == 1
+
+    editor = table.indexWidget(model.index(0, 0), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+    editor = table.indexWidget(model.index(1, 0), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+
+def test_table_view__reset_model(qapp, table):
+    """
+    Create a table without model, set a new one
+
+    Make sure the amount of columns, cells and editors are properly displayed
+    """
+    table.setDisplayedColumns([0, 2])
+    qapp.processEvents()
+
+    model = data_views.ObjectListModel()
+    model.setObjectList(["blue", "red"])
+    table.setSourceModel(model)
+    qapp.processEvents()
+
+    header = table.horizontalHeader()
+    assert header.hiddenSectionCount() == 1
+
+    editor = table.indexWidget(model.index(0, 0), column=2)
+    assert isinstance(editor, qt.QLineEdit)
+
+    editor = table.indexWidget(model.index(1, 0), column=2)
+    assert isinstance(editor, qt.QLineEdit)