Qt - QTreeView WordWrap not working

I have been reading in some of the forums about WordWrap not working for QTreeView (as in the text displays off screen), but I couldn't find any "hack" that fixed this. The bookTreeView is encapsulated inside another widget, this may be the problem...or it's just not supported?

    bookTreeView->setModel(standardModel);
    bookTreeView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    bookTreeView->setWordWrap(true);
    bookTreeView->sizeHint();
    bookTreeView->setTextElideMode(Qt::ElideNone);
    bookTreeView->setExpandsOnDoubleClick(true);
    bookTreeView->setUniformRowHeights(true);
    bookTreeView->setHeaderHidden(true);
    bookTreeView->setStyleSheet("QTreeView { font-size: 27px; show-decoration-selected: 0; } QTreeView::branch:has-siblings:!adjoins-item { border-image: none; } QTreeView::branch:has-siblings:adjoins-item { border-image: none; } QTreeView::branch:!has-children:!has-siblings:adjoins-item { border-image: none;} QTreeView::branch:has-children:!has-siblings:closed, QTreeView::branch:closed:has-children:has-siblings { border-image: none; image: url(':images/images/right_arrow.png'); } QTreeView::branch:open:has-children:!has-siblings, QTreeView::branch:open:has-children:has-siblings  { border-image: none; image: url(':images/images/down_开发者_JAVA技巧arrow.png'); } ");

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(someWidget);
    layout->addWidget(bookTreeView);

    QWidget *page = new QWidget;
    page->setLayout(layout);

    return page;

Only hack I know - it's QLable inside Tree Item.

As suggested by a commenter, you can do this using a custom delegate. Unfortunately, QTreeView.setWordWrap(True) seems to have no effect (at least in Qt 4.8). In response to another question, we implemented word wrap functionality using a custom QStyledItemDelegate for a QTreeView:

Implementing a delegate for wordwrap in a QTreeView (Qt/PySide/PyQt)?

This is just one way to do it, there are other good ways I'm sure, and note this example is very basic, no editors or anything like that...

import sys
from PySide import QtGui, QtCore

class SimpleTree(QtGui.QTreeView):
    def __init__(self, parent = None):    
        QtGui.QTreeView.__init__(self, parent)
        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)
        self.setGeometry(500,200, 400, 300)  
        self.setUniformRowHeights(False) #optimize: but for word wrap, we don't want this!
        self.model = QtGui.QStandardItemModel()
        self.model.setHorizontalHeaderLabels(['Task', 'Description'])
        self.setModel(self.model)
        self.rootItem = self.model.invisibleRootItem()
        item0 = [QtGui.QStandardItem('Sneeze'), QtGui.QStandardItem('You have been blocked up')]
        item00 = [QtGui.QStandardItem('Tickle nose, this is a very long entry. Row should resize.'), QtGui.QStandardItem('Key first step')]
        item1 = [QtGui.QStandardItem('<b>Get a job</b>'), QtGui.QStandardItem('Do not blow it')]
        item2  = [QtGui.QStandardItem("Now let's see how this one works. It is medium."), QtGui.QStandardItem('Do not blow it')]       
        self.rootItem.appendRow(item0)
        item0[0].appendRow(item00) 
        self.rootItem.appendRow(item1)
        self.rootItem.appendRow(item2)
        self.setColumnWidth(0,150)
        self.expandAll()
        self.setItemDelegate(ItemWordWrap(self))

class ItemWordWrap(QtGui.QStyledItemDelegate):
    def __init__(self, parent=None):
        QtGui.QStyledItemDelegate.__init__(self, parent)
        self.parent = parent
        
    def paint(self, painter, option, index):
        text = index.model().data(index) 
        document = QtGui.QTextDocument() # #print "dir(document)", dir(document)
        document.setHtml(text)       
        document.setTextWidth(option.rect.width())  #keeps text from spilling over into adjacent rect
        index.model().setData(index, option.rect.width(), QtCore.Qt.UserRole+1)
        painter.save() 
        painter.translate(option.rect.x(), option.rect.y()) 
        document.drawContents(painter)  #draw the document with the painter
        painter.restore()
        
    def sizeHint(self, option, index):
        #Size should depend on number of lines wrapped
        text = index.model().data(index)
        document = QtGui.QTextDocument()
        document.setHtml(text) 
        width = index.model().data(index, QtCore.Qt.UserRole+1)
        if not width:
            width = 20
        document.setTextWidth(width) 
        return QtCore.QSize(document.idealWidth() + 10,  document.size().height())       

def main():
    app = QtGui.QApplication(sys.argv)
    myTree = SimpleTree()
    myTree.show()
    sys.exit(app.exec_())
    
if __name__ == "__main__":
    main()