C++ QStandardItem::setDropEnabled方法代码示例

void BookmarkList::dropEvent(QDropEvent *event)
{
	const QMimeData* data = event->mimeData();
	if(data->hasUrls())
	{
		//TODO: Add insert to the dropped row, except row 0
		QStandardItemModel* mod = (QStandardItemModel*)model();
		QString path = data->urls()[0].path(); 
		QFileInfo f(path);
		if(mod)
		{
			QList<QStandardItem*> items = mod->findItems(f.fileName());
			if(f.isDir() && items.isEmpty())
			{
				QStandardItem *it = new QStandardItem();
				it->setText(f.fileName());
				it->setData(path);
#if QT_VERSION >= 0x040600
				// Todo: Use a "favorites folder" icon instead
				it->setIcon(*globalIcon);
#else
				it->setIcon(QIcon(":/images/icons/clip-folder-bookmark.png"));
#endif	
				it->setDropEnabled(true);
				mod->appendRow(it);
				emit bookmarkAdded();
			}
		}
	}
	event->acceptProposedAction();
}

bool ProgramsModel::AddGroup(QModelIndex &index, int row)
{
    int groupId = myHost->programsModel->GetNextGroupId();

    QString name("New grp");

    //create the group
    QStandardItem *groupItem = new QStandardItem( name );
    groupItem->setData(GroupNode,NodeType);
    groupItem->setData(groupId,ProgramId);
#ifndef QT_NO_DEBUG
    groupItem->setData(groupId,Qt::ToolTipRole);
#endif
    groupItem->setDragEnabled(true);
    groupItem->setDropEnabled(false);
    groupItem->setEditable(true);

    if(row==-1)
        row=rowCount();
    insertRow( row, groupItem );

    index = groupItem->index();

    return true;
}

bool ProgramsModel::AddProgram(int groupNum, QModelIndex &index, int row)
{
    QStandardItem *groupItem = item(groupNum);

    //if the group was disabled re-enable it
    if(groupItem->rowCount()==0) {
        groupItem->setBackground(Qt::transparent);
        groupItem->setToolTip("");
    }

    int progId = myHost->programsModel->GetNextProgId();

    QString name("New prog");

    //create the program item
    QStandardItem *prgItem = new QStandardItem( name );
    prgItem->setData(ProgramNode,NodeType);
    prgItem->setData(progId,ProgramId);
#ifndef QT_NO_DEBUG
    prgItem->setData(progId,Qt::ToolTipRole);
#endif
    prgItem->setDragEnabled(true);
    prgItem->setDropEnabled(false);
    prgItem->setEditable(true);

    if(row==-1)
        row=groupItem->rowCount();
    groupItem->insertRow(row, prgItem);

    index = prgItem->index();

//    ValidateProgChange(index);

    return true;
}

NavigatorTreeModel::ItemRow NavigatorTreeModel::createItemRow(const ModelNode &node)
{
    Q_ASSERT(node.isValid());

    uint hash = node.internalId();

    const bool dropEnabled = node.metaInfo().isValid();

    QStandardItem *idItem = new QStandardItem;
    idItem->setDragEnabled(true);
    idItem->setDropEnabled(dropEnabled);
    idItem->setEditable(true);
    idItem->setData(hash, NavigatorRole);
    if (node.metaInfo().isValid())
        idItem->setToolTip(node.type());
    else
        idItem->setToolTip(msgUnknownItem(node.type()));
#    ifdef _LOCK_ITEMS_
    QStandardItem *lockItem = new QStandardItem;
    lockItem->setDragEnabled(true);
    lockItem->setDropEnabled(dropEnabled);
    lockItem->setEditable(false);
    lockItem->setCheckable(true);
    lockItem->setData(hash, NavigatorRole);
#    endif

    QStandardItem *visibilityItem = new QStandardItem;
    visibilityItem->setDropEnabled(dropEnabled);
    visibilityItem->setCheckable(true);
    visibilityItem->setEditable(false);
    visibilityItem->setData(hash, NavigatorRole);
    if (node.isRootNode())
        visibilityItem->setCheckable(false);

    QMap<QString, QStandardItem *> propertyItems;
    foreach (const QString &propertyName, visibleProperties(node)) {
        QStandardItem *propertyItem = new QStandardItem;
        propertyItem->setSelectable(false);
        propertyItem->setDragEnabled(false);
        propertyItem->setDropEnabled(dropEnabled);
        propertyItem->setEditable(false);
        propertyItem->setData(propertyName, Qt::DisplayRole);
        propertyItems.insert(propertyName, propertyItem);
        idItem->appendRow(propertyItem);
    }

NavigatorTreeModel::ItemRow NavigatorTreeModel::createItemRow(const ModelNode &node)
{
    Q_ASSERT(node.isValid());

    uint hash = qHash(node);

    const bool dropEnabled = node.metaInfo().isValid();

    QStandardItem *idItem = new QStandardItem;
    idItem->setDragEnabled(true);
    idItem->setDropEnabled(dropEnabled);
    idItem->setEditable(true);
    idItem->setData(hash, Qt::UserRole);

    #ifdef _LOCK_ITEMS_
    QStandardItem *lockItem = new QStandardItem;
    lockItem->setDragEnabled(true);
    lockItem->setDropEnabled(dropEnabled);
    lockItem->setEditable(false);
    lockItem->setCheckable(true);
    lockItem->setData(hash, Qt::UserRole);
    #endif

    QStandardItem *visibilityItem = new QStandardItem;
    visibilityItem->setDropEnabled(dropEnabled);
    visibilityItem->setCheckable(true);
    visibilityItem->setEditable(false);
    visibilityItem->setData(hash, Qt::UserRole);
    if (node.isRootNode()) {
        visibilityItem->setCheckable(false);
    }

    #ifdef _LOCK_ITEMS_
    return ItemRow(idItem, lockItem, visibilityItem);
    #else
    return ItemRow(idItem, visibilityItem);
    #endif
}

void SinglePlaylistView::browseSavedPlaylist(MafwPlaylist *mafwplaylist)
{
    currentObjectId = QString();
    playlistLoaded = true;

    objectModel->clear();
    QStandardItem *item = new QStandardItem();
    item->setData(true, UserRoleHeader);
    item->setDragEnabled(false);
    item->setDropEnabled(false);
    objectModel->appendRow(item);

    connect(ui->objectList, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(onItemDoubleClicked()));

    MafwPlaylistAdapter *mpa = new MafwPlaylistAdapter(mafwplaylist);
    int size = mpa->size();

    gchar** items = mpa->items(0, size-1);
    for (int i = 0; items[i] != NULL; i++) {
        QStandardItem *item = new QStandardItem();
        item->setData(QString::fromUtf8(items[i]), UserRoleObjectID);
        item->setData(Duration::Blank, UserRoleSongDuration);
        item->setDropEnabled(false);
        objectModel->appendRow(item);
    }
    g_strfreev(items);

    PlaylistQueryManager *playlistQM = new PlaylistQueryManager(this, mpa);
    mpa->setParent(playlistQM);
    connect(playlistQM, SIGNAL(gotItem(QString,GHashTable*,uint)), this, SLOT(onItemReceived(QString,GHashTable*,uint)));
    connect(ui->objectList->verticalScrollBar(), SIGNAL(valueChanged(int)), playlistQM, SLOT(setPriority(int)));
    playlistQM->getItems(0, size-1);

    remainingCount = size;
    updateSongCount();
}

bool BookmarkListModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int col, const QModelIndex &parent)
{
	Q_UNUSED(parent);
	if(action == Qt::IgnoreAction)
		return true;

	//Make sure we have urls as created by the fileList	
	if(!data->hasUrls())/*{{{*/
	{
		qDebug("Drop is not a URL");
		return false;
	}

	//Single column for now
	if(col > 0)
		return false;
	
	int irow = row;
	if(irow == 0)
		irow = 1;

	QString path = data->urls()[0].path(); 
	QFileInfo f(path);
	QList<QStandardItem*> items = findItems(f.fileName());
	if(f.isDir() && items.isEmpty())
	{
		QStandardItem *it = new QStandardItem();
		it->setText(f.fileName());
		it->setData(path);
#if QT_VERSION >= 0x040600
				// Todo: Use a "favorites folder" icon instead
		it->setIcon(*globalIcon);
#else
		it->setIcon(QIcon(":/images/icons/clip-folder-bookmark.png"));
#endif	
		it->setDropEnabled(true);
		if(row)
			insertRow(irow, it);
		else
			appendRow(it);
		emit bookmarkAdded();

	}/*}}}*/
	return true;
}

QModelIndex AbstractCameraManager::detectNewCamerasAndExpand() {
    std::vector<AbstractCamera*> newCameras;
    std::vector<QStandardItem*> oldCameras;
    cameraTree_getCameraList(cameraTree.invisibleRootItem(), &oldCameras);
    detectNewCameras(&newCameras);
    qDebug() << "oldCameras" << oldCameras.size();
    qDebug() << "newCameras" << newCameras.size();
    //removing disconnected cameras
    for(unsigned int i=0; i<oldCameras.size(); i++) {
        QStandardItem* item = oldCameras.at(i);
        AbstractCamera* cam = reinterpret_cast<AbstractCamera *>( item->data(CameraRole).value<quintptr>() );
        qDebug() << "oldCameras(" << i << "):" << cam;
        bool found = false;
        for(int j=newCameras.size()-1; j>=0; j--) {
            if(cam->equalsTo(newCameras.at(j))) {
                found = true;
                newCameras.erase(newCameras.begin()+j);
                continue;
            }
        }
        if( !found ) { //remove if disconnected
            activateCamera(cam, item, false);
            item->parent()->removeRow(item->row());
        }
    }
    qDebug() << "newCameras" << newCameras.size();
    //adding new cameras
    for(unsigned int i=0; i<newCameras.size(); i++) {
        AbstractCamera* cam = newCameras.at(i);
        QStandardItem *item = new QStandardItem(cam->getString().c_str());
        item->setData(QVariant::fromValue( reinterpret_cast<quintptr>(cam) ), CameraRole);
        //qDebug() << "setData " << camera << " data " << item->data(CameraRole).value<AbstractCamera *>();
        item->setCheckable(true);
        item->setCheckState(Qt::Unchecked);
        item->setDropEnabled(false);
        newCameraList.appendRow(item);
    }

    return newCameraList.index();
}

void Load::setMedia(const QStringList urlList, const QString title)
{
    if (urlList.isEmpty()) {
        return;
    }
    APlayer::instance()->setMedia(urlList[0]);

    List *list = List::instance();
    list->removeRow(list->rowCount()-1);
    int count = 1;
    QModelIndexList indexes;

    for (const QString &url : urlList) {
        QStandardItem *i = new QStandardItem;
        i->setText(title + QString::number(count));
        i->setData(url, List::FileRole);
        i->setEditable(false); i->setDropEnabled(false);
        list->appendRow(i);
        indexes.append(i->index());
        count++;
    }
    list->merge(indexes);
}

void tst_QStandardItem::getSetFlags()
{
    QStandardItem item;
    item.setEnabled(true);
    QVERIFY(item.isEnabled());
    QVERIFY(item.flags() & Qt::ItemIsEnabled);
    item.setEditable(true);
    QVERIFY(item.isEditable());
    QVERIFY(item.flags() & Qt::ItemIsEditable);
    item.setSelectable(true);
    QVERIFY(item.isSelectable());
    QVERIFY(item.flags() & Qt::ItemIsSelectable);
    item.setCheckable(true);
    QVERIFY(item.isCheckable());
    QCOMPARE(item.checkState(), Qt::Unchecked);
    QVERIFY(item.flags() & Qt::ItemIsUserCheckable);
    item.setTristate(true);
    QVERIFY(item.isTristate());
    QVERIFY(item.flags() & Qt::ItemIsTristate);
#ifndef QT_NO_DRAGANDDROP
    item.setDragEnabled(true);
    QVERIFY(item.isDragEnabled());
    QVERIFY(item.flags() & Qt::ItemIsDragEnabled);
    item.setDropEnabled(true);
    QVERIFY(item.isDropEnabled());
    QVERIFY(item.flags() & Qt::ItemIsDropEnabled);
#endif
    
    QVERIFY(item.isEnabled());
    item.setEnabled(false);
    QVERIFY(!item.isEnabled());
    QVERIFY(!(item.flags() & Qt::ItemIsEnabled));
    QVERIFY(item.isEditable());
    item.setEditable(false);
    QVERIFY(!item.isEditable());
    QVERIFY(!(item.flags() & Qt::ItemIsEditable));
    QVERIFY(item.isSelectable());
    item.setSelectable(false);
    QVERIFY(!item.isSelectable());
    QVERIFY(!(item.flags() & Qt::ItemIsSelectable));
    QVERIFY(item.isCheckable());
    item.setCheckable(false);
    QVERIFY(!item.isCheckable());
    QVERIFY(!(item.flags() & Qt::ItemIsUserCheckable));
    QVERIFY(item.isTristate());
    item.setTristate(false);
    QVERIFY(!item.isTristate());
    QVERIFY(!(item.flags() & Qt::ItemIsTristate));
#ifndef QT_NO_DRAGANDDROP
    QVERIFY(item.isDragEnabled());
    item.setDragEnabled(false);
    QVERIFY(!item.isDragEnabled());
    QVERIFY(!(item.flags() & Qt::ItemIsDragEnabled));
    QVERIFY(item.isDropEnabled());
    item.setDropEnabled(false);
    QVERIFY(!item.isDropEnabled());
    QVERIFY(!(item.flags() & Qt::ItemIsDropEnabled));
#endif

    item.setCheckable(false);
    item.setCheckState(Qt::Checked);
    item.setCheckable(true);
    QCOMPARE(item.checkState(), Qt::Checked);
}