QML TreeView how to traverse all the nodes selected in the QML child nodes?-CodePudding

Need a c + + provides end QAbstractItemModel method?

 
The import QtQuick 2.7 
The import QtQuick. Controls 2.1 
The import QtQml. Models 2.13 
The import QtQuick. Controls 1.4 
The import QtQuick. Controls. Styles section 1.4 
The import QtQuick. Windows 2.13 

The import haisong 1.0 

The Window {
Id: mainWindow 
Visible: true 
X: 50; Y: 50 
MinimumWidth: 800 
MinimumHeight: 600 

A Rectangle {
Id: leftView 
Anchors. The fill: parent 
Color: "white" 
TreeView {
Id: the treeView 
Anchors. The fill: parent 
HeaderVisible: false 
BackgroundVisible: false 
FrameVisible: false 
Model: myModel 
RowDelegate: Rectangle {
Height: 30 
Color: "# 303030" 
} 

ItemDelegate: Rectangle {
Color: "# 454545" 
Height: 30 
The Text {
Id: contentTex 
X: 25 
Color: "white" 
Anchors. VerticalCenter: parent. VerticalCenter 
Text: styleData. Value. The type + ":" + styleData. Value. The size 
} 
} 

TableViewColumn {
Role: "type" 
Title: "Type" 
} 
} 
} 
}