qtreewidget

I have two columns in a QTreeWidget , one column represents a list of urls and the second represents results . I have loaded the list of urls in first column and now I want to iterate this list and during the iteration, change the text in the second column. How to achieve this? reclosedev You can call QTreeWidget.invisibleRootItem() to receive the root item, and then use the QTreeWidgetItem API to iterate through the items. Example: root = self.treeWidget.invisibleRootItem() child_count = root.childCount() for i in range(child_count): item = root.child(i) url = item.text(0) # text at first (0)

Is there a way to make a QTreeWidget mirror the changes made to an internal data structure such as dictionary? It seems like they would have created this functionality within the api, because there are many programs which may interact with QTreeWidget s from multiple GUI areas, but the main purpose required of the QTreeWidget is to show a data structure at any point in time. The documentation for QtGui items is not that simple for me to grasp as it usually refers to C documentation, and I'm not certain how it transfers to python. So essentially what I would like is the simplest manner to make

Where are the signals itemChecked and itemUncheсked on the QTreeWidget ? Qt Signals: (quote from PyQt4 QTreeWidget documentation page) void currentItemChanged (QTreeWidgetItem *,QTreeWidgetItem *) void itemActivated (QTreeWidgetItem *,int) void itemChanged (QTreeWidgetItem *,int) void itemClicked (QTreeWidgetItem *,int) void itemCollapsed (QTreeWidgetItem *) void itemDoubleClicked (QTreeWidgetItem *,int) void itemEntered (QTreeWidgetItem *,int) void itemExpanded (QTreeWidgetItem *) void itemPressed (QTreeWidgetItem *,int) void itemSelectionChanged () At current moment I solved it like this:

(1)tree->setColumnCount(1); 设置树显示的列数。 (2)tree->setHeaderLabel("Example");设置树的每一列的显示标题。 (3)tree->addTopLevelItem(note1);追加一个顶层树节点。 (4)tree->expand(tree->model()->index(1, 0));展开第1行0列的节点。 (5)note2->addChild(childtree1);在节点note2下添加一个子节点childtree1。 (6)void clicked ( const QModelIndex & index );它是树单击事件。 详细内容参考：https://blog.csdn.net/xgbing/article/details/7778856 来源： https://www.cnblogs.com/ProtocolYue/p/11437124.html

Here is what I'm trying to do (all parents and children must have a close button on the right, in the future, only the hovered item will be able to show the **close ** button): My delegate code: class CloseButton : public QItemDelegate { Q_OBJECT public: CloseButton( QObject* parent = 0 ) : QItemDelegate( parent ) {}; QWidget* createEditor( QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index ) const { if ( index.column() == 1 ) { QToolButton* button = new QToolButton( parent ); button->setIcon( QIcon( CLOSE_ICON ) ); //button->setFixedSize( 16, 16 ); //button-

I made a tree structure with QTreeWidget , and it works well. But I have a problem with that. Commonly, with a tree structure, if I want to deselect all, I click on a blank area of the tree-widget. But QTreeWidget does not seem to support that (or I can't find out how). Could sub-classing or something else solve the problem? Determining a click on a blank area seems the key to the solution, but I can't find a signal or anything. The example code below will clear the selection (and current item) when clicking on a blank area, or when pressing Esc when the tree widget has the keyboard focus. It

I've checked the documentation here and I can't seem to find a method for setting the text of a QTreeWidget's title or header. Without setting the title QTreeWidget automatically uses the number '1' in my code. An example of what it looks like outputted is below. I'm presuming QTreeWidget has a method for this and I just can't find it. You're looking for setHeaderLabel . Note that the documentation says it adds a new column, so if your view already has column 0 with text "1", you may instead have to do the following: if(QTreeWidgetItem* header = treeWidget->headerItem()) { header->setText(0,