09b852b1d8
Examples are usually a good way to get to know a new codebase, do not teach developers who are new to Qt about the 3-arg connect() to begin with. Drive-by changes: - `this` can't be implicitly captured with [=] in a lambda, instead capture by reference - Update docs related to the sqlbrowser example; the overloaded signal it mentions has been removed in Qt6 - In the sqlbrowser example, rename addConnection() (no-arg) overload to openNewConnectionDialog, suggested in code review Change-Id: I30c9f35bda4ac2f460d767ab7f84422ae3ed09f7 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
84 lines
2.2 KiB
C++
84 lines
2.2 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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#ifndef BROWSER_H
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#define BROWSER_H
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#include <QWidget>
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#include <QSqlTableModel>
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#include "ui_browserwidget.h"
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class ConnectionWidget;
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QT_FORWARD_DECLARE_CLASS(QTableView)
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QT_FORWARD_DECLARE_CLASS(QPushButton)
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QT_FORWARD_DECLARE_CLASS(QTextEdit)
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QT_FORWARD_DECLARE_CLASS(QSqlError)
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class Browser: public QWidget, private Ui::Browser
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{
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Q_OBJECT
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public:
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Browser(QWidget *parent = nullptr);
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virtual ~Browser();
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QSqlError addConnection(const QString &driver, const QString &dbName, const QString &host,
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const QString &user, const QString &passwd, int port = -1);
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void insertRow();
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void deleteRow();
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void updateActions();
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public slots:
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void exec();
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void showTable(const QString &table);
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void showMetaData(const QString &table);
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void openNewConnectionDialog();
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void currentChanged() { updateActions(); }
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void about();
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void on_insertRowAction_triggered()
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{ insertRow(); }
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void on_deleteRowAction_triggered()
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{ deleteRow(); }
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void on_fieldStrategyAction_triggered();
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void on_rowStrategyAction_triggered();
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void on_manualStrategyAction_triggered();
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void on_submitAction_triggered();
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void on_revertAction_triggered();
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void on_selectAction_triggered();
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void on_connectionWidget_tableActivated(const QString &table)
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{ showTable(table); }
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void on_connectionWidget_metaDataRequested(const QString &table)
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{ showMetaData(table); }
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void on_submitButton_clicked()
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{
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exec();
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sqlEdit->setFocus();
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}
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void on_clearButton_clicked()
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{
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sqlEdit->clear();
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sqlEdit->setFocus();
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}
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signals:
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void statusMessage(const QString &message);
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};
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class CustomModel: public QSqlTableModel
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{
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Q_OBJECT
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public:
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explicit CustomModel(QObject *parent = nullptr, QSqlDatabase db = QSqlDatabase())
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: QSqlTableModel(parent, db) {}
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QVariant data(const QModelIndex &idx, int role) const override
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{
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if (role == Qt::BackgroundRole && isDirty(idx))
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return QBrush(QColor(Qt::yellow));
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return QSqlTableModel::data(idx, role);
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}
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};
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#endif
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