qtreewidget

I have a QTreeWidgetItem added to a QTreeWidget : QTreeWidgetItem* item = new QTreeWidgetItem(ui->trwPairs); item->setFlags(item->flags() | Qt::ItemIsEditable); If the item is edited, I want to do a few checks on the new value: Pairs::Pairs(QWidget *parent) : QWidget(parent), ui(new Ui::Pairs) { ui->setupUi(this); connect(this->ui->trwPairs, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(Validate(QTreeWidgetItem*,int))); } void Pairs::Validate(QTreeWidgetItem* item, int column) { if (item->text(column).toInt() < 1) { QMessageBox::critical(this, "Error", QString("Node ID ") + item->text

I have created a QTreeWidget, I'm trying to list all the items displayed. I do not want to go inside the items if the item have child but not expanded. It's really getting the number of Items I can see in the tree. I have tried : for( int i = 0; i < MyTreeWidget->topLevelItemCount(); ++i ) { QTreeWidgetItem *item = MyTreeWidget->topLevelItem(i); ... but this is giving me only the topLevelItem and I want all I can see. In the example, I should be able to count 14 items You can write a recursive function that will run over the hierarchy and count all visible items. For example: int treeCount

I would like to popup a menu, when user clicks on an object in QTreeWidgetItem. I though about catching signal contextMenuRequested from QWidget and then retrieving index from the view using itemAt. But this doesn't seem very pretty. Is there any easier way to be able to call a menu on an item inside a view? Write your own custom ItemDelegate and handle the click event in QAbstractItemDelegate::editorEvent . You can retreive the data in the cell from the QModelIndex. In C++ it would look like this: class ItemDelegate: public QItemDelegate { public: ItemDelegate(ContextMenuHandler *const

I want to implement in my program a tree with nested sub-levels, and I'm looking for which of those two kind(View/Widget) is best suited for my goal. I have a list of days with task that are either done/missed/failed, each task has a count of how many times it was done/missed/failed and lastly a score for that day. I want to display them like so: I made this example in QtCreator using a QTreeWidget, but I'm worried that it would be hard to modify the elements since they are stored somewhere else. Are my worries rational and should I go to the model/view structure, or can I easily get going

I have a QTreeWidget with a column filled with some numbers, how can I sort them? If I use setSortingEnabled(true); I can sort correctly only strings, so my column is sorted: 1 10 100 2 20 200 but this is not the thing I want! Suggestions? You can sort overriding the < operator and changing sort condiction like this. class TreeWidgetItem : public QTreeWidgetItem { public: TreeWidgetItem(QTreeWidget* parent):QTreeWidgetItem(parent){} private: bool operator<(const QTreeWidgetItem &other)const { int column = treeWidget()->sortColumn(); return text(column).toLower() < other.text(column).toLower();

Does anyone know if its possible to select multiple items on a QTreeWidget and how to go about enabling the multiple selection? All the items I want to be selectable are top level QTreeWidgetItems and all their children are set to be disabled (i.e QTreeWidgetItem.setDisabled(True) ) Mike Ramirez It is, you'll want to call setSelectionMode during init to enable QAbstractItemView::MultiSelection. QTreeView/QTreeWidget inherit QAbstractItemView, so it is available. Then to disable the items, just hook on to QTreeWidgets.itemSelectionChanged() signal. I think below will help: youQTreeWidget

I'm using a QTreeWidget to display some simple items. I've set the list sortable by .setSortingEnabled(true) calling. In this way, the list is sorted only when the user press the title column, and not automatically whenever new item is inserted. Is there a way to force the automatic sorting in a specified column without calling .sortItems(column) at every item insertion? If it's possible, I would highlight the whole sorted column. Bille To do this, use QTreeView::setSortingEnabled() and QTreeView::sortByColumn . Just remember to turn this on /after/ you initially populate the widget, and turn