C++ QListView::model方法代码示例

void VegetationWidget::slotDeleteSelected()
{
	QListView* view = qobject_cast<QListView*>(sender());
	QStandardItemModel* model = qobject_cast<QStandardItemModel*>(view->model());
	QString dirString("");
	if (view == _treeListView)
	{
		std::string plantDir = g_SystemContext._workContextDir;
		plantDir.append(CONTEXT_DIR);
		plantDir.append("/Plant/");
		dirString = chineseTextUTF8ToQString(plantDir + "Tree/");
	}
	else
	{
		std::string plantDir = g_SystemContext._workContextDir;
		plantDir.append(CONTEXT_DIR);
		plantDir.append("/Plant/");
		dirString = chineseTextUTF8ToQString(plantDir + "Grass/");
	}
	QItemSelectionModel* selectionModel = view->selectionModel();
	QModelIndexList	modelList = selectionModel->selectedIndexes();
	if (modelList.size() < 1)
		return;
	for (int i = 0; i < modelList.size(); ++i)
	{
		QStandardItem* everyItem = model->itemFromIndex(modelList.at(i));
		QFile::remove(dirString + everyItem->text());
		int row = everyItem->row();
		model->removeRow(row);
	}
}

/*!
  Sets \a model to be the ThemeListModel associated with this ThemeListItem.
  If this item currently has a QListView widget set, this model is installed
  immediately on the view using QListView::setModel().
  If a call is made to QWidget::setWidget() in the future, this model
  will be installed in the same way.
*/
void QThemeListItem::setModel(QThemeListModel *model)
{
    if (d->model != model) {
        d->model = model;
        QListView* view = listView();
        if (view != 0 && view->model() != d->model)
            view->setModel(d->model);
    }
}

void tst_QFontDialog::task256466_wrongStyle()
{
    QFontDatabase fdb;
    FriendlyFontDialog dialog;
    QListView *familyList = reinterpret_cast<QListView*>(dialog.d_func()->familyList);
    QListView *styleList = reinterpret_cast<QListView*>(dialog.d_func()->styleList);
    QListView *sizeList = reinterpret_cast<QListView*>(dialog.d_func()->sizeList);
    for (int i = 0; i < familyList->model()->rowCount(); ++i) {
        QModelIndex currentFamily = familyList->model()->index(i, 0);
        familyList->setCurrentIndex(currentFamily);
        const QFont current = dialog.currentFont(),
                    expected = fdb.font(currentFamily.data().toString(),
            styleList->currentIndex().data().toString(), sizeList->currentIndex().data().toInt());
        QCOMPARE(current.family(), expected.family());
        QCOMPARE(current.style(), expected.style());
        QCOMPARE(current.pointSizeF(), expected.pointSizeF());
    }
}

void VegetationWidget::slotViewSelected()
{
	QListView* view = qobject_cast<QListView*>(sender());
	QItemSelectionModel* selectionModel = view->selectionModel();
	QModelIndexList	modelList = selectionModel->selectedIndexes();
	if (modelList.size() < 1)
		return;
	QStandardItemModel* model = qobject_cast<QStandardItemModel*>(view->model());
	std::string dirString("");
	if (view == _treeListView)
	{
		std::string plantDir = g_SystemContext._workContextDir;
		plantDir.append(CONTEXT_DIR);
		plantDir.append("/Plant/");
		dirString = plantDir + "Tree/";
	}
	else
	{
		std::string plantDir = g_SystemContext._workContextDir;
		plantDir.append(CONTEXT_DIR);
		plantDir.append("/Plant/");
		dirString = plantDir + "Grass/";
	}
	QStandardItem* currentItem = model->itemFromIndex(modelList.at(0));
	dirString.append(chineseTextToUTF8String(currentItem->text()));
	osg::ref_ptr<osg::Node> node;
	if (currentItem->text().endsWith(".osgb"))
	{
		node = g_SystemContext._resourceLoader->getNodeByName(dirString, false);
	}
	else
	{
		osg::ref_ptr<osg::Image> image = g_SystemContext._resourceLoader->getImageByFileName(dirString);
		if (image.valid())
		{
			float s = image->s();
			float t = image->t();
			osg::ref_ptr<osg::Geometry> geometry = osg::createTexturedQuadGeometry(osg::Vec3(-s / 2.0f, -t / 2.0f, 0), osg::Vec3(s, 0, 0), osg::Vec3(0, t, 0));
			osg::ref_ptr<osg::Geode> geode = new osg::Geode;
			geode->addDrawable(geometry);
			osg::StateSet* ss = geode->getOrCreateStateSet();
			ss->setMode(GL_BLEND, osg::StateAttribute::ON);
			ss->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
			osg::Texture2D* texture = new osg::Texture2D(image);
			ss->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
			node = geode;
		}
	}
	if (node.valid())
	{
		_nodeViewDialog = new NodeViewDialog;
		_nodeViewDialog->setNode(node);
		_nodeViewDialog->exec();
		//_nodeViewDialog->setNode(NULL);
	}
}

void MainWindow::loadProjects()
{
    QListView *view = ui->centralWidget->findChild<QListView*>("projectLst");
    QStandardItemModel *model = static_cast<QStandardItemModel*>(view->model());
    QVector<Project*> projects = Project::getProjects();
    foreach(Project *p, projects) {
        QStandardItem *item = new QStandardItem();
        item->setData(p->getName(), ProjectItemDelegate::nameTextRole);
        model->appendRow(item);
    }

/** Process results sent back from various search engines (local, remote). */
void SearchDialog::processResults(Request type, const QStandardItemList &results)
{
	QListView *listToProcess = nullptr;
	switch (type) {
	case Artist:
		listToProcess = _artists;
		break;
	case Album:
		listToProcess = _albums;
		break;
	case Track:
		listToProcess = _tracks;
		break;
	}
	QStandardItemModel *m = qobject_cast<QStandardItemModel*>(listToProcess->model());
	for (int i = 0; i < results.size(); i++) {
		m->insertRow(0, results.at(i));
	}
	m->sort(0);
	listToProcess->setFixedHeight(listToProcess->model()->rowCount() * listToProcess->sizeHintForRow(0));
	qDebug() << "number of items" << listToProcess->model()->rowCount();
	qDebug() << "size h f r 1" << _artists->sizeHintForRow(0) << _albums->sizeHintForRow(0) << _tracks->sizeHintForRow(0);
	qDebug() << "size h f r 2" << iconArtists->height() << iconAlbums->height() << iconTracks->height();
	int ar = qMax(_artists->model()->rowCount() * _artists->sizeHintForRow(0), iconArtists->height());
	int al = qMax(_albums->model()->rowCount() * _albums->sizeHintForRow(0), iconAlbums->height());
	int tr = qMax(_tracks->model()->rowCount() * _tracks->sizeHintForRow(0), iconTracks->height());
	artistLayoutWidget->setFixedHeight(ar);
	albumLayoutWidget->setFixedHeight(al);
	trackLayoutWidget->setFixedHeight(tr);
	qDebug() << "ar al tr" << ar << al << tr;

	int h = ar + al + tr;
	//int h = 300;
	h += labelSearchMore->height() + aggregated->height() + 3;
	int minW = qMax(iconArtists->width() + _artists->sizeHintForColumn(0), 400);
	this->resize(minW, h);
}

void MessagePage::on_deleteButton_clicked()
{
    QListView *list = ui->listConversation;

    if(!list->selectionModel())
        return;

    QModelIndexList indexes = list->selectionModel()->selectedIndexes();

    if(!indexes.isEmpty())
    {
        list->model()->removeRow(indexes.at(0).row());
        indexes = list->selectionModel()->selectedIndexes();

        if(indexes.isEmpty())
            on_backButton_clicked();
    }
}

/**
 * @brief MainWindow::setDocumentModel
 *
 * Will be called whe a new q2d::Project is created, to link the projects
 * document model with the appropriate list view in the UI.
 * @param model
 */
void
MainWindow::slot_setDocumentModel(QStandardItemModel* model) {

    // close all tabs related to the old model
    m_ui->schematicsTabWidget->clear();

    QListView* documentView = m_ui->documentListView;

    documentView->clearSelection();
    QAbstractItemModel* oldModel = documentView->model();

    m_ui->documentListView->setModel(model);

    if (oldModel != nullptr) {
        oldModel->disconnect();
        oldModel->deleteLater();
    }
}

QStringListModel * GraphicalArrayTest::findModel(const GraphicalArray* value)
{
  // /!\ WARNING /!\
  // THE FOLLOWING CODE IS EXTREMELY SENSITIVE TO ANY MODIFICATION
  // OF THE GRAPHICAL LOOK OF GraphicalArray

  QListView * view = findListView(value);
  QStringListModel * model = nullptr;

  if( is_not_null(view) )
  {
    model = dynamic_cast<QStringListModel*>( view->model() );

    if( is_null(model) )
      QWARN("Failed to find the view model.");
  }

  return model;
}

void EmoticonViewer::deleteSelected()
{
    QListView *view = _ui->listView;
    view->model()->removeRow(view->currentIndex().row());
}

void EmoticonViewer::accept()
{
    QListView *view = _ui->listView;
    emit hasTextToInsert(view->model()->data(view->currentIndex()).toString());
    close();
}