Here's the code
class TreeModel : public QAbstractItemModel
{
Q_OBJECT
public:
explicit TreeModel(const QString &data, QObject *parent = 0);
~TreeModel();
enum TreeRoles {
TitleRole = Qt::UserRole + 1,
SummaryRole
};
QVariant data(const QModelIndex &index, int role) const Q_DECL_OVERRIDE;
bool setData(const QModelIndex &index, const QVariant &value, int role);
Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;
QVariant headerData(int section, Qt::Orientation orientation,
int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
QModelIndex index(int row, int column,
const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
QModelIndex parent(const QModelIndex &index) const Q_DECL_OVERRIDE;
int rowCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
int columnCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
protected:
QHash<int, QByteArray> roleNames() const;
private:
TreeItem *rootItem;
};
here's the code of the TreeView
TreeView {
id: view
anchors.fill: parent
anchors.margins: 2 * 12 + row.height
model: treeModel
selection: selectionModel
headerVisible: false
itemDelegate:
Component {
id: dragDelegate
MouseArea {
id: dragArea
property bool held: false
height: content.height
drag.target: held ? content : undefined
drag.axis: Drag.YAxis
onPressAndHold: held = true
onReleased: held = false
Rectangle {
id: content
anchors {
horizontalCenter: parent.horizontalCenter
verticalCenter: parent.verticalCenter
}
width: dragArea.width
height: 20
Text{
anchors.verticalCenter: parent.verticalCenter
text: styleData.value
}
border.width: 1
border.color: "lightsteelblue"
color: dragArea.held ?
"lightsteelblue" : "green"
Behavior on color { ColorAnimation { duration: 100 } }
radius: 2
states: State {
when: dragArea.held
ParentChange { target: content; parent: root }
AnchorChanges {
target: content
anchors { horizontalCenter: undefined; verticalCenter: undefined }
}
}
}
}
}
TableViewColumn {
title: "Name"
role: "Title"
resizable: true
}
onClicked: {
console.log("clicked", index)
}
onDoubleClicked: {
console.log("double clicked " + index)
clickedIndex = index
console.log("DoubleClickedIndex " + clickedIndex)
textEditRect.visible = true;
textEdit.text = fileSystemModel.data(index, "Title")
textEditRect.forceActiveFocus()
isExpanded(index) ? collapse(index) : expand(index)
}
}
