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| |
| #include "connectionwidget.h" |
| |
| #include <QtWidgets> |
| #include <QtSql> |
| |
| ConnectionWidget::ConnectionWidget(QWidget *parent) |
| : QWidget(parent) |
| { |
| QVBoxLayout *layout = new QVBoxLayout(this); |
| tree = new QTreeWidget(this); |
| tree->setObjectName(QLatin1String("tree")); |
| tree->setHeaderLabels(QStringList(tr("database"))); |
| tree->header()->setSectionResizeMode(QHeaderView::Stretch); |
| QAction *refreshAction = new QAction(tr("Refresh"), tree); |
| metaDataAction = new QAction(tr("Show Schema"), tree); |
| connect(refreshAction, &QAction::triggered, this, &ConnectionWidget::refresh); |
| connect(metaDataAction, &QAction::triggered, this, &ConnectionWidget::showMetaData); |
| tree->addAction(refreshAction); |
| tree->addAction(metaDataAction); |
| tree->setContextMenuPolicy(Qt::ActionsContextMenu); |
| |
| layout->addWidget(tree); |
| |
| QMetaObject::connectSlotsByName(this); |
| } |
| |
| ConnectionWidget::~ConnectionWidget() |
| { |
| } |
| |
| static QString qDBCaption(const QSqlDatabase &db) |
| { |
| QString nm = db.driverName(); |
| nm.append(QLatin1Char(':')); |
| if (!db.userName().isEmpty()) |
| nm.append(db.userName()).append(QLatin1Char('@')); |
| nm.append(db.databaseName()); |
| return nm; |
| } |
| |
| void ConnectionWidget::refresh() |
| { |
| tree->clear(); |
| QStringList connectionNames = QSqlDatabase::connectionNames(); |
| |
| bool gotActiveDb = false; |
| for (int i = 0; i < connectionNames.count(); ++i) { |
| QTreeWidgetItem *root = new QTreeWidgetItem(tree); |
| QSqlDatabase db = QSqlDatabase::database(connectionNames.at(i), false); |
| root->setText(0, qDBCaption(db)); |
| if (connectionNames.at(i) == activeDb) { |
| gotActiveDb = true; |
| setActive(root); |
| } |
| if (db.isOpen()) { |
| QStringList tables = db.tables(); |
| for (int t = 0; t < tables.count(); ++t) { |
| QTreeWidgetItem *table = new QTreeWidgetItem(root); |
| table->setText(0, tables.at(t)); |
| } |
| } |
| } |
| if (!gotActiveDb) { |
| activeDb = connectionNames.value(0); |
| setActive(tree->topLevelItem(0)); |
| } |
| |
| tree->doItemsLayout(); // HACK |
| } |
| |
| QSqlDatabase ConnectionWidget::currentDatabase() const |
| { |
| return QSqlDatabase::database(activeDb); |
| } |
| |
| static void qSetBold(QTreeWidgetItem *item, bool bold) |
| { |
| QFont font = item->font(0); |
| font.setBold(bold); |
| item->setFont(0, font); |
| } |
| |
| void ConnectionWidget::setActive(QTreeWidgetItem *item) |
| { |
| for (int i = 0; i < tree->topLevelItemCount(); ++i) { |
| if (tree->topLevelItem(i)->font(0).bold()) |
| qSetBold(tree->topLevelItem(i), false); |
| } |
| |
| if (!item) |
| return; |
| |
| qSetBold(item, true); |
| activeDb = QSqlDatabase::connectionNames().value(tree->indexOfTopLevelItem(item)); |
| } |
| |
| void ConnectionWidget::on_tree_itemActivated(QTreeWidgetItem *item, int /* column */) |
| { |
| if (!item) |
| return; |
| |
| if (!item->parent()) { |
| setActive(item); |
| } else { |
| setActive(item->parent()); |
| emit tableActivated(item->text(0)); |
| } |
| } |
| |
| void ConnectionWidget::showMetaData() |
| { |
| QTreeWidgetItem *cItem = tree->currentItem(); |
| if (!cItem || !cItem->parent()) |
| return; |
| setActive(cItem->parent()); |
| emit metaDataRequested(cItem->text(0)); |
| } |
| |
| void ConnectionWidget::on_tree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *) |
| { |
| metaDataAction->setEnabled(current && current->parent()); |
| } |
| |