diff options
Diffstat (limited to 'examples/sql/sqlbrowser/connectionwidget.cpp')
| -rw-r--r-- | examples/sql/sqlbrowser/connectionwidget.cpp | 114 |
1 files changed, 36 insertions, 78 deletions
diff --git a/examples/sql/sqlbrowser/connectionwidget.cpp b/examples/sql/sqlbrowser/connectionwidget.cpp index 658cfb77dc..da6796d7e5 100644 --- a/examples/sql/sqlbrowser/connectionwidget.cpp +++ b/examples/sql/sqlbrowser/connectionwidget.cpp @@ -1,66 +1,21 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #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); @@ -71,34 +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); } @@ -123,15 +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); @@ -144,7 +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; @@ -166,7 +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()); } |