15524d1623
When a layout is used to arrange the children of a non-top-level custom widget, the layout's contentsMargins need to be manually set to zero to avoid extra empty space around the widgets, misaligning it w.r.t. its siblings. Add the necessary call. Amends 2690822428deec4f0c08f4d118d69a7c6036369e, which, however, inherited the missing margin adjustment from older code. Pick-to: 6.9 6.8 Change-Id: Icd1945a4f2b1635f031e50758ec2f1ec9313ae27 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "connectionwidget.h"
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#include <QAction>
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#include <QHeaderView>
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#include <QSqlDatabase>
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#include <QTreeWidget>
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#include <QVBoxLayout>
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ConnectionWidget::ConnectionWidget(QWidget *parent)
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: QWidget(parent)
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, tree(new QTreeWidget(this))
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{
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QVBoxLayout *layout = new QVBoxLayout(this);
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layout->setContentsMargins({});
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tree->setHeaderLabels(QStringList(tr("Database")));
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tree->header()->setStretchLastSection(true);
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QAction *refreshAction = new QAction(tr("Refresh"), tree);
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metaDataAction = new QAction(tr("Show Schema"), tree);
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connect(refreshAction, &QAction::triggered, this, &ConnectionWidget::refresh);
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connect(metaDataAction, &QAction::triggered, this, &ConnectionWidget::showMetaData);
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tree->addAction(refreshAction);
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tree->addAction(metaDataAction);
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tree->setContextMenuPolicy(Qt::ActionsContextMenu);
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layout->addWidget(tree);
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connect(tree, &QTreeWidget::itemActivated,
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this, &ConnectionWidget::onItemActivated);
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connect(tree, &QTreeWidget::currentItemChanged,
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this, &ConnectionWidget::onCurrentItemChanged);
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}
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ConnectionWidget::~ConnectionWidget()
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{
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}
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void ConnectionWidget::refresh()
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{
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const auto qDBCaption = [](const QSqlDatabase &db)
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{
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QString nm = db.driverName() + QLatin1Char(':');
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if (!db.userName().isEmpty())
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nm += db.userName() + QLatin1Char('@');
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nm += db.databaseName();
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return nm;
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};
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tree->clear();
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const QStringList connectionNames = QSqlDatabase::connectionNames();
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bool gotActiveDb = false;
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for (const auto &connectionName : connectionNames) {
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QTreeWidgetItem *root = new QTreeWidgetItem(tree);
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QSqlDatabase db = QSqlDatabase::database(connectionName, false);
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root->setText(0, qDBCaption(db));
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if (connectionName == activeDb) {
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gotActiveDb = true;
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setActive(root);
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}
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if (db.isOpen()) {
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QStringList tables = db.tables();
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for (int t = 0; t < tables.count(); ++t) {
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QTreeWidgetItem *table = new QTreeWidgetItem(root);
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table->setText(0, tables.at(t));
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}
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}
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}
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if (!gotActiveDb) {
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activeDb = connectionNames.value(0);
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setActive(tree->topLevelItem(0));
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}
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tree->doItemsLayout(); // HACK
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}
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QSqlDatabase ConnectionWidget::currentDatabase() const
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{
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return QSqlDatabase::database(activeDb);
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}
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void ConnectionWidget::setActive(QTreeWidgetItem *item)
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{
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const auto qSetBold = [](QTreeWidgetItem *item, bool bold)
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{
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QFont font = item->font(0);
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font.setBold(bold);
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item->setFont(0, font);
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};
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for (int i = 0; i < tree->topLevelItemCount(); ++i) {
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if (tree->topLevelItem(i)->font(0).bold())
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qSetBold(tree->topLevelItem(i), false);
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}
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if (!item)
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return;
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qSetBold(item, true);
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activeDb = QSqlDatabase::connectionNames().value(tree->indexOfTopLevelItem(item));
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}
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void ConnectionWidget::onItemActivated(QTreeWidgetItem *item)
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{
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if (!item)
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return;
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if (!item->parent()) {
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setActive(item);
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} else {
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setActive(item->parent());
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emit tableActivated(item->text(0));
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}
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}
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void ConnectionWidget::showMetaData()
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{
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QTreeWidgetItem *cItem = tree->currentItem();
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if (!cItem || !cItem->parent())
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return;
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setActive(cItem->parent());
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emit metaDataRequested(cItem->text(0));
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}
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void ConnectionWidget::onCurrentItemChanged(QTreeWidgetItem *current)
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{
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metaDataAction->setEnabled(current && current->parent());
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}
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