ConnectionWidget Class Reference

#include <connectionwidget.h>

Inheritance diagram for ConnectionWidget:

[legend]Collaboration diagram for ConnectionWidget:

[legend]List of all members.

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Detailed Description

Definition at line 34 of file connectionwidget.h.

Public Slots
void	refresh ()
void	showMetaData ()
void	on_tree_itemActivated (QTreeWidgetItem *item, int column)
void	on_tree_currentItemChanged (QTreeWidgetItem *current, QTreeWidgetItem *previous)
Signals
void	tableActivated (const QString &table)
void	metaDataRequested (const QString &tableName)
Public Member Functions
	ConnectionWidget (QWidget *parent=0)
virtual	~ConnectionWidget ()
QSqlDatabase	currentDatabase () const
Private Member Functions
void	setActive (QTreeWidgetItem *)
Private Attributes
QTreeWidget *	tree
QAction *	metaDataAction
QString	activeDb

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Constructor & Destructor Documentation

ConnectionWidget::ConnectionWidget

(

QWidget *

parent = 0

)

Definition at line 29 of file connectionwidget.cpp.

References Qt::ActionsContextMenu, QWidget::addAction(), QLayout::addWidget(), QObject::connect(), QMetaObject::connectSlotsByName(), QTreeView::header(), QWidget::layout(), metaDataAction, refresh(), QWidget::setContextMenuPolicy(), QTreeWidget::setHeaderLabels(), QObject::setObjectName(), QHeaderView::setResizeMode(), showMetaData(), SIGNAL, SLOT, QHeaderView::Stretch, and tree.

    : QWidget(parent)
{
    QVBoxLayout *layout = new QVBoxLayout(this);
    tree = new QTreeWidget(this);
    tree->setObjectName(QLatin1String("tree"));
    tree->setHeaderLabels(QStringList(tr("database")));
    tree->header()->setResizeMode(QHeaderView::Stretch);
    QAction *refreshAction = new QAction(tr("Refresh"), tree);
    metaDataAction = new QAction(tr("Show Schema"), tree);
    connect(refreshAction, SIGNAL(triggered()), SLOT(refresh()));
    connect(metaDataAction, SIGNAL(triggered()), SLOT(showMetaData()));
    tree->addAction(refreshAction);
    tree->addAction(metaDataAction);
    tree->setContextMenuPolicy(Qt::ActionsContextMenu);

    layout->addWidget(tree);

    QMetaObject::connectSlotsByName(this);
}

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ConnectionWidget::~ConnectionWidget

(

)

[virtual]

Definition at line 50 of file connectionwidget.cpp.

{
}

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Member Function Documentation

QSqlDatabase ConnectionWidget::currentDatabase

(

)

const

Definition at line 94 of file connectionwidget.cpp.

References activeDb, and QSqlDatabase::database().

{
    return QSqlDatabase::database(activeDb);
}

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void ConnectionWidget::tableActivated

(

const QString &

table

)

[signal]

Referenced by on_tree_itemActivated().

void ConnectionWidget::metaDataRequested

(

const QString &

tableName

)

[signal]

Referenced by showMetaData().

void ConnectionWidget::refresh

(

)

[slot]

Definition at line 64 of file connectionwidget.cpp.

References activeDb, QList< T >::at(), QTreeWidget::clear(), QSqlDatabase::connectionNames(), QList< T >::count(), QSqlDatabase::database(), QTreeView::doItemsLayout(), i, QSqlDatabase::isOpen(), qDBCaption(), setActive(), t, QSqlDatabase::tables(), QTreeWidget::topLevelItem(), tree, and QList< T >::value().

Referenced by ConnectionWidget().

{
    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
}

void ConnectionWidget::showMetaData

(

)

[slot]

Definition at line 134 of file connectionwidget.cpp.

References QTreeWidget::currentItem(), emit, metaDataRequested(), QTreeWidgetItem::parent(), setActive(), QTreeWidgetItem::text(), and tree.

Referenced by ConnectionWidget().

{
    QTreeWidgetItem *cItem = tree->currentItem();
    if (!cItem || !cItem->parent())
        return;
    setActive(cItem->parent());
    emit metaDataRequested(cItem->text(0));
}

void ConnectionWidget::on_tree_itemActivated	(	QTreeWidgetItem *	item,
		int	column
	)			[slot]

Definition at line 120 of file connectionwidget.cpp.

References emit, QTreeWidgetItem::parent(), setActive(), tableActivated(), and QTreeWidgetItem::text().

{

    if (!item)
        return;

    if (!item->parent()) {
        setActive(item);
    } else {
        setActive(item->parent());
        emit tableActivated(item->text(0));
    }
}

void ConnectionWidget::on_tree_currentItemChanged	(	QTreeWidgetItem *	current,
		QTreeWidgetItem *	previous
	)			[slot]

Definition at line 143 of file connectionwidget.cpp.

References metaDataAction, QTreeWidgetItem::parent(), and QAction::setEnabled().

{
    metaDataAction->setEnabled(current && current->parent());
}

void ConnectionWidget::setActive

(

QTreeWidgetItem *

)

[private]

Definition at line 106 of file connectionwidget.cpp.

References activeDb, QFont::bold(), QSqlDatabase::connectionNames(), QTreeWidgetItem::font(), i, QTreeWidget::indexOfTopLevelItem(), qSetBold(), QTreeWidget::topLevelItem(), QTreeWidget::topLevelItemCount(), tree, and QList< T >::value().

Referenced by on_tree_itemActivated(), refresh(), and showMetaData().

{
    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));
}

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Member Data Documentation

QTreeWidget* ConnectionWidget::tree [private]

Definition at line 56 of file connectionwidget.h.

Referenced by ConnectionWidget(), refresh(), setActive(), and showMetaData().

QAction* ConnectionWidget::metaDataAction [private]

Definition at line 57 of file connectionwidget.h.

Referenced by ConnectionWidget(), and on_tree_currentItemChanged().

QString ConnectionWidget::activeDb [private]

Definition at line 58 of file connectionwidget.h.

Referenced by currentDatabase(), refresh(), and setActive().

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The documentation for this class was generated from the following files:

• demos/sqlbrowser/connectionwidget.h
• demos/sqlbrowser/connectionwidget.cpp

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