[Qt-interest] QMimeData problems between a QTableWidget and a QTreeWidget

[Abhishek Patil]

Hi,

Andrei Sebastian Cimpean wrote:
> Hello, i am trying to make it so when you drag from a table view to a 
> tree view you can send some data and add an item to the tree view. 
> I searched on the web and programmed something that i feel should 
> work but, alas, it is not.
> This is the treeview class. 
>
> Favorites::Favorites(QWidget *parent)
>     : QTreeWidget(parent)
> {
>     //building the part for the favorites list
>     QTreeWidgetItem* favoritesItem = new QTreeWidgetItem();
>     favoritesItem->setText(0,"Favorites");
>     this->addTopLevelItem(favoritesItem);
>     favoritesItem->setExpanded(true);
>     this->setDragDropMode(QAbstractItemView::DropOnly);
>     this->setAcceptDrops(true);
>     addPathToFavorites(QString("asdsadasd"));
>     refreshFavorites();
> }
>  
> void Favorites::dragEnterEvent(QDragEnterEvent* event){
>     qDebug()<< event->mimeData()->text(); // just prints out ""
>     if (event->mimeData()->hasText())
>              event->acceptProposedAction();
> }
>  
> void Favorites::dropEvent(QDropEvent *event){
>     qDebug()<< event->mimeData()->text();
>     addPathToFavorites(event->mimeData()->text());
> }
>
> And this is the table
>
> TableWidget::TableWidget(QWidget *parent)
>     : QTableWidget(parent)
> {
> //i've enabled drag in the main class 
> }
>  
> void TableWidget::mousePressEvent(QMouseEvent *event){
>     if(event->button() == Qt::LeftButton)
>         poss = event->pos();
>     else { ;}
>     QTableWidget::mousePressEvent(event);
> }
>  
> void TableWidget::mouseMoveEvent(QMouseEvent *event){
>     if(!event->buttons() & Qt::LeftButton)
>         QTableWidget::mouseMoveEvent(event);
>     else
>     if((event->pos() - poss).manhattanLength() < 
> QApplication::startDragDistance())
>         QTableWidget::mouseMoveEvent(event);
>     else{
>         QTableWidgetItem *item = this->itemAt(event->pos());
>         if(item){
>             QDrag* drag = new QDrag(this);
>             QMimeData* mimeData = new QMimeData;
>             mimeData->setText(item->text());
>             drag->setMimeData(mimeData);
>             qDebug()<<drag->mimeData()->hasText()<<drag-
>   
>> mimeData()->text();//print's what it should
>>     
//    I think you are missing    
           drag->exec();
>         }
>         QTableWidget::mouseMoveEvent(event);
>     }
> }
>
> What am I doing wrong? Any help will be greatly appreciated. Thank 
> you.
>   
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>
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-- 
Abhishek Patil | http://thezeroth.net
+91-9620022244 | abhishek at thezeroth.net

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