browser.h Example File | Qt SQL 5.6

Qt 5.6 | Qt SQL | SQL Browser | browser.h Example File

Qt 5.6.2 Reference Documentation

# browser.h Example File

sqlbrowser/browser.h

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the demonstration applications of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:LGPL21$
      ** Commercial License Usage
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      ** accordance with the commercial license agreement provided with the
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      ** GNU Lesser General Public License Usage
      ** Alternatively, this file may be used under the terms of the GNU Lesser
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      ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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      #ifndef BROWSER_H
      #define BROWSER_H

      #include <QWidget>
      #include <QSqlTableModel>
      #include "ui_browserwidget.h"

      class ConnectionWidget;
      QT_FORWARD_DECLARE_CLASS(QTableView)
      QT_FORWARD_DECLARE_CLASS(QPushButton)
      QT_FORWARD_DECLARE_CLASS(QTextEdit)
      QT_FORWARD_DECLARE_CLASS(QSqlError)

      class Browser: public QWidget, private Ui::Browser
      {
          Q_OBJECT
      public:
          Browser(QWidget *parent = 0);
          virtual ~Browser();

          QSqlError addConnection(const QString &driver, const QString &dbName, const QString &host,
                        const QString &user, const QString &passwd, int port = -1);

          void insertRow();
          void deleteRow();
          void updateActions();

      public slots:
          void exec();
          void showTable(const QString &table);
          void showMetaData(const QString &table);
          void addConnection();
          void currentChanged() { updateActions(); }
          void about();

          void on_insertRowAction_triggered()
          { insertRow(); }
          void on_deleteRowAction_triggered()
          { deleteRow(); }
          void on_fieldStrategyAction_triggered();
          void on_rowStrategyAction_triggered();
          void on_manualStrategyAction_triggered();
          void on_submitAction_triggered();
          void on_revertAction_triggered();
          void on_selectAction_triggered();
          void on_connectionWidget_tableActivated(const QString &table)
          { showTable(table); }
          void on_connectionWidget_metaDataRequested(const QString &table)
          { showMetaData(table); }
          void on_submitButton_clicked()
          {
              exec();
              sqlEdit->setFocus();
          }
          void on_clearButton_clicked()
          {
              sqlEdit->clear();
              sqlEdit->setFocus();
          }

      signals:
          void statusMessage(const QString &message);
      };

      class CustomModel: public QSqlTableModel
      {
          Q_OBJECT
      public:
          explicit CustomModel(QObject *parent = 0, QSqlDatabase db = QSqlDatabase()):QSqlTableModel(parent, db) {}
          QVariant data(const QModelIndex &idx, int role) const Q_DECL_OVERRIDE
          {
              if (role == Qt::BackgroundRole && isDirty(idx))
                  return QBrush(QColor(Qt::yellow));
              return QSqlTableModel::data(idx, role);
          }
      };

      #endif