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-rw-r--r--examples/sql/sqlbrowser/connectionwidget.cpp63
1 files changed, 34 insertions, 29 deletions
diff --git a/examples/sql/sqlbrowser/connectionwidget.cpp b/examples/sql/sqlbrowser/connectionwidget.cpp
index 99ad537994..da6796d7e5 100644
--- a/examples/sql/sqlbrowser/connectionwidget.cpp
+++ b/examples/sql/sqlbrowser/connectionwidget.cpp
@@ -3,17 +3,19 @@
#include "connectionwidget.h"
-#include <QtWidgets>
-#include <QtSql>
+#include <QAction>
+#include <QHeaderView>
+#include <QSqlDatabase>
+#include <QTreeWidget>
+#include <QVBoxLayout>
ConnectionWidget::ConnectionWidget(QWidget *parent)
: QWidget(parent)
+ , tree(new QTreeWidget(this))
{
QVBoxLayout *layout = new QVBoxLayout(this);
- tree = new QTreeWidget(this);
- tree->setObjectName(QLatin1String("tree"));
- tree->setHeaderLabels(QStringList(tr("database")));
- tree->header()->setSectionResizeMode(QHeaderView::Stretch);
+ tree->setHeaderLabels(QStringList(tr("Database")));
+ tree->header()->setStretchLastSection(true);
QAction *refreshAction = new QAction(tr("Refresh"), tree);
metaDataAction = new QAction(tr("Show Schema"), tree);
connect(refreshAction, &QAction::triggered, this, &ConnectionWidget::refresh);
@@ -24,34 +26,37 @@ ConnectionWidget::ConnectionWidget(QWidget *parent)
layout->addWidget(tree);
- QMetaObject::connectSlotsByName(this);
+ connect(tree, &QTreeWidget::itemActivated,
+ this, &ConnectionWidget::onItemActivated);
+ connect(tree, &QTreeWidget::currentItemChanged,
+ this, &ConnectionWidget::onCurrentItemChanged);
}
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()
{
+ const auto qDBCaption = [](const QSqlDatabase &db)
+ {
+ QString nm = db.driverName() + QLatin1Char(':');
+ if (!db.userName().isEmpty())
+ nm += db.userName() + QLatin1Char('@');
+ nm += db.databaseName();
+ return nm;
+ };
+
tree->clear();
- QStringList connectionNames = QSqlDatabase::connectionNames();
+ const QStringList connectionNames = QSqlDatabase::connectionNames();
bool gotActiveDb = false;
- for (int i = 0; i < connectionNames.count(); ++i) {
+ for (const auto &connectionName : connectionNames) {
QTreeWidgetItem *root = new QTreeWidgetItem(tree);
- QSqlDatabase db = QSqlDatabase::database(connectionNames.at(i), false);
+ QSqlDatabase db = QSqlDatabase::database(connectionName, false);
root->setText(0, qDBCaption(db));
- if (connectionNames.at(i) == activeDb) {
+ if (connectionName == activeDb) {
gotActiveDb = true;
setActive(root);
}
@@ -76,15 +81,15 @@ 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)
{
+ const auto qSetBold = [](QTreeWidgetItem *item, bool bold)
+ {
+ QFont font = item->font(0);
+ font.setBold(bold);
+ item->setFont(0, font);
+ };
+
for (int i = 0; i < tree->topLevelItemCount(); ++i) {
if (tree->topLevelItem(i)->font(0).bold())
qSetBold(tree->topLevelItem(i), false);
@@ -97,7 +102,7 @@ void ConnectionWidget::setActive(QTreeWidgetItem *item)
activeDb = QSqlDatabase::connectionNames().value(tree->indexOfTopLevelItem(item));
}
-void ConnectionWidget::on_tree_itemActivated(QTreeWidgetItem *item, int /* column */)
+void ConnectionWidget::onItemActivated(QTreeWidgetItem *item)
{
if (!item)
return;
@@ -119,7 +124,7 @@ void ConnectionWidget::showMetaData()
emit metaDataRequested(cItem->text(0));
}
-void ConnectionWidget::on_tree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *)
+void ConnectionWidget::onCurrentItemChanged(QTreeWidgetItem *current)
{
metaDataAction->setEnabled(current && current->parent());
}