daguerreo / qmltreeview Goto Github PK

• Expose font property
• Define a rowHeight property to allow to change row size modifying selection item and hover item without reimplement the delegate
• rowPadding: how much space a child node is shifted from the parent
• rowSpacing: distance between indicator and contentItem
• Update the sample to show the properties

When adds the first new item here

// main.cpp
void populateModel(TreeModel& model)
{
   auto america = new TreeItem("America");
   auto asia = new TreeItem("Asia");
   auto europe = new TreeItem("Europe");
   auto oceania = new TreeItem("Oceania");

   auto brazil = new TreeItem("Brazil");
   auto canada = new TreeItem("Canada");
   auto mexico = new TreeItem("Mexico");
   auto usa = new TreeItem("USA");

   auto italy = new TreeItem("Italy");
   auto france = new TreeItem("France");
   auto portugal = new TreeItem("Portugal");
   auto spain = new TreeItem("Spain");

   model.addTopLevelItem(america); // <--- assertion failed here
...

an assertion failure will be triggered due to parent.childrenCount() - 1 == -1

// tree_model.h
void TreeModel::addItem(TreeItem* parent, TreeItem* child) {
    if (!child || !parent) {
        return;
    }

    emit layoutAboutToBeChanged();

    if (child->parentItem()) {
        beginRemoveRows(QModelIndex(), child->parentItem()->childCount() - 1, child->parentItem()->childCount());
        child->parentItem()->removeChild(child);
        endRemoveRows();
    }

    beginInsertRows(QModelIndex(), parent->childCount() - 1, parent->childCount() - 1); // bug
    child->setParentItem(parent);
    parent->appendChild(child);
    endInsertRows();

    emit layoutChanged();
}

Add unit tests for the TreeModel

Hi
I added a proxy model to filter the data, but there is actually no filtering.

Do I need to force update the data by sending a signal to the view?

TreeModel supports only the DisplayMode role. Implement the support for the other roles, standard and custom. Could be nice adding an example using different roles.

Build the tree from the TreeItem, than set directly the root item with a dedicated method

In Qt6, a render error occurs when a child element is deleted and another row is present in manipulator example.

Does not happens in Qt5

and make the examples load the plugin

All the examples have these warnings in Qt6 but not in Qt5

qrc:/modules/QMLTreeView/TreeView.qml:83:5: QML TreeViewItem: Binding loop detected for property "handleColor"
qrc:/modules/QMLTreeView/TreeView.qml:83:5: QML TreeViewItem: Binding loop detected for property "selectedItemColor"
qrc:/modules/QMLTreeView/TreeViewItem.qml:108:4: QML ColumnLayout: Qt Quick Layouts: Polish loop detected. Aborting after two iterations.

Hi,
How to clear the model of the tree?
I called the clear() function but it didn't work.

Add basic tree manipulation:

• Nodes addition
• Nodes removal
• Model reset
• Set data

Make delegate for highlighting an external component like the highlight property of ListView