彻底改进分页算法

dbpage/dbpage.cpp

@@ -115,11 +115,13 @@ void DbCountThread::select()
 {
     //计算用时
     QDateTime dtStart = QDateTime::currentDateTime();
-
+    int count = 0;
     QSqlQuery query(QSqlDatabase::database(connName));
-    query.exec(sql);
-    query.next();
-    int count = query.value(0).toUInt();
+    if (query.exec(sql)) {
+        if (query.next()) {
+            count = query.value(0).toUInt();
+        }
+    }
 
     QDateTime dtEnd = QDateTime::currentDateTime();
     double msec = dtStart.msecsTo(dtEnd);
@@ -127,40 +129,26 @@ void DbCountThread::select()
 }
 
 
-QScopedPointer<DbPage> DbPage::self;
-DbPage *DbPage::Instance()
-{
-    if (self.isNull()) {
-        static QMutex mutex;
-        QMutexLocker locker(&mutex);
-        if (self.isNull()) {
-            self.reset(new DbPage);
-        }
-    }
-
-    return self.data();
-}
-
 DbPage::DbPage(QObject *parent) : QObject(parent)
 {
     startIndex = 0;
     queryModel = new SqlQueryModel;
 
     pageCurrent = 1;
-    pageCount = 0;
-    resultCount = 0;
-    resultCurrent = 0;
+    pageTotal = 0;
+    recordsTotal = 0;
+    recordsPerpage = 0;
 
-    labPageCount = 0;
+    labPageTotal = 0;
     labPageCurrent = 0;
-    labResultCount = 0;
-    labResultCurrent = 0;
-    labResult = 0;
-    labInfo = 0;
+    labRecordsTotal = 0;
+    labRecordsPerpage = 0;
+    labSelectTime = 0;
+    labSelectInfo = 0;
 
     tableView = 0;
     btnFirst = 0;
-    btnPre = 0;
+    btnPrevious = 0;
     btnNext = 0;
     btnLast = 0;
 
@@ -169,9 +157,9 @@ DbPage::DbPage(QObject *parent) : QObject(parent)
     dbType = DbType_Sqlite;
 
     pageCurrent = 0;
-    pageCount = 0;
-    resultCount = 0;
-    resultCurrent = 30;
+    pageTotal = 0;
+    recordsTotal = 0;
+    recordsPerpage = 30;
 
     tableName = "";
     selectColumn = "*";
@@ -238,24 +226,30 @@ void DbPage::bindData(const QString &sql)
         labPageCurrent->setText(QString("第 %1 页").arg(pageCurrent));
     }
 
-    if (labPageCount != 0) {
-        labPageCount->setText(QString("共 %1 页").arg(pageCount));
+    if (labPageTotal != 0) {
+        labPageTotal->setText(QString("共 %1 页").arg(pageTotal));
     }
 
-    if (labResultCount != 0) {
-        labResultCount->setText(QString("共 %1 条").arg(resultCount));
+    if (labRecordsTotal != 0) {
+        labRecordsTotal->setText(QString("共 %1 条").arg(recordsTotal));
     }
 
-    if (labResultCurrent != 0) {
-        labResultCurrent->setText(QString("每页 %1 条").arg(resultCurrent));
+    if (labRecordsPerpage != 0) {
+        labRecordsPerpage->setText(QString("每页 %1 条").arg(recordsPerpage));
     }
 
-    if (labInfo != 0) {
-        labInfo->setText(QString("共 %1 条  每页 %2 条  共 %3 页  第 %4 页").arg(resultCount).arg(resultCurrent).arg(pageCount).arg(pageCurrent));
+    if (labSelectInfo != 0) {
+        //labSelectInfo->setText(QString("共 %1 条  每页 %2 条  共 %3 页  第 %4 页").arg(recordsTotal).arg(recordsPerpage).arg(pageTotal).arg(pageCurrent));
+        labSelectInfo->setText(QString("第 %1 页  每页 %2 条  共 %3 页  共 %4 条").arg(pageCurrent).arg(recordsPerpage).arg(pageTotal).arg(recordsTotal));
     }
 
     //发送结果信号
-    emit receivePage(pageCurrent, pageCount, resultCount, resultCurrent);
+    if (recordsTotal != recordsPerpage) {
+        emit receivePage(pageCurrent, pageTotal, recordsTotal, recordsPerpage);
+        //qDebug() << TIMEMS << startIndex << pageCurrent << pageTotal << recordsTotal << recordsPerpage;
+    }
+
+    changeBtnEnable();
 }
 
 QString DbPage::getPageSql()
@@ -263,14 +257,14 @@ QString DbPage::getPageSql()
     //组织分页SQL语句,不同的数据库分页语句不一样
     QString sql = QString("select %1 from %2 %3 order by %4").arg(selectColumn).arg(tableName).arg(whereSql).arg(orderSql);
     if (dbType == DbType_PostgreSQL || dbType == DbType_KingBase) {
-        sql = QString("%1 limit %3 offset %2;").arg(sql).arg(startIndex).arg(resultCurrent);
+        sql = QString("%1 limit %3 offset %2;").arg(sql).arg(startIndex).arg(recordsPerpage);
     } else if (dbType == DbType_SqlServer) {
         //取第m条到第n条记录：select top (n-m+1) id from tablename where id not in (select top m-1 id from tablename)
         //sql = QString("select %1 from %2 %3 order by %4").arg(selectColumn).arg(tableName).arg(whereSql).arg(orderSql);
     } else if (dbType == DbType_Oracle) {
         //暂时没有找到好办法
     } else {
-        sql = QString("%1 limit %2,%3;").arg(sql).arg(startIndex).arg(resultCurrent);
+        sql = QString("%1 limit %2,%3;").arg(sql).arg(startIndex).arg(recordsPerpage);
     }
 
     return sql;
@@ -278,120 +272,46 @@ QString DbPage::getPageSql()
 
 void DbPage::slot_receiveCount(quint32 count, double msec)
 {
-    if (labResult != 0) {
-        labResult->setText(QString("查询用时 %1 秒").arg(QString::number(msec / 1000, 'f', 3)));
+    if (labSelectTime != 0) {
+        labSelectTime->setText(QString("查询用时 %1 秒").arg(QString::number(msec / 1000, 'f', 3)));
     }
 
-    resultCount = count;
-
-    int yushu = resultCount % resultCurrent;
+    recordsTotal = count;
+    int yushu = recordsTotal % recordsPerpage;
 
     //不存在余数,说明是整行,例如300%5==0
     if (yushu == 0) {
-        if (resultCount > 0 && resultCount < resultCurrent) {
-            pageCount = 1;
+        if (recordsTotal > 0 && recordsTotal < recordsPerpage) {
+            pageTotal = 1;
         } else {
-            pageCount = resultCount / resultCurrent;
+            pageTotal = recordsTotal / recordsPerpage;
         }
     } else {
-        pageCount = (resultCount / resultCurrent) + 1;
-    }
-
-    //2014-10-9增加翻页按钮可用不可用处理,如果只有一页数据,则翻页按钮不可用
-    if (pageCount <= 1) {
-        btnFirst->setEnabled(false);
-        btnLast->setEnabled(false);
-        btnNext->setEnabled(false);
-        btnPre->setEnabled(false);
-    } else {
-        btnFirst->setEnabled(true);
-        btnLast->setEnabled(true);
-        btnNext->setEnabled(true);
-        btnPre->setEnabled(true);
+        pageTotal = (recordsTotal / recordsPerpage) + 1;
     }
 
     bindData(getPageSql());
 }
 
-void DbPage::first()
-{
-    if (pageCount > 1) {
-        startIndex = 0;
-        pageCurrent = 1;
-        bindData(getPageSql());
-        btnLast->setEnabled(true);
-        btnNext->setEnabled(true);
-    }
-
-    btnFirst->setEnabled(false);
-    btnPre->setEnabled(false);
-}
-
-void DbPage::previous()
-{
-    if (pageCurrent > 1) {
-        pageCurrent--;
-        startIndex -= resultCurrent;
-        bindData(getPageSql());
-        btnLast->setEnabled(true);
-        btnNext->setEnabled(true);
-    }
-
-    if (pageCurrent == 1) {
-        btnFirst->setEnabled(false);
-        btnPre->setEnabled(false);
-    }
-}
-
-void DbPage::next()
-{
-    if (pageCurrent < pageCount) {
-        pageCurrent++;
-        startIndex += resultCurrent;
-        bindData(getPageSql());
-        btnFirst->setEnabled(true);
-        btnPre->setEnabled(true);
-    }
-
-    if (pageCurrent == pageCount) {
-        btnLast->setEnabled(false);
-        btnNext->setEnabled(false);
-    }
-}
-
-void DbPage::last()
-{
-    if (pageCount > 0) {
-        startIndex = (pageCount - 1) * resultCurrent;
-        pageCurrent = pageCount;
-        bindData(getPageSql());
-        btnFirst->setEnabled(true);
-        btnPre->setEnabled(true);
-    }
-
-    btnLast->setEnabled(false);
-    btnNext->setEnabled(false);
-}
-
 //设置显示数据的表格控件,当前翻页信息的标签控件等
 void DbPage::setControl(QTableView *tableView,
-                        QLabel *labPageCount, QLabel *labPageCurrent,
-                        QLabel *labResultCount, QLabel *labResultCurrent,
-                        QLabel *labResult, QLabel *labInfo,
-                        QAbstractButton *btnFirst, QAbstractButton *btnPre,
+                        QLabel *labPageTotal, QLabel *labPageCurrent,
+                        QLabel *labRecordsTotal, QLabel *labRecordsPerpage,
+                        QLabel *labSelectTime, QLabel *labSelectInfo,
+                        QAbstractButton *btnFirst, QAbstractButton *btnPrevious,
                         QAbstractButton *btnNext, QAbstractButton *btnLast,
                         const QString &countName, const QString &connName)
 {
     this->tableView = tableView;
-    this->labPageCount = labPageCount;
+    this->labPageTotal = labPageTotal;
     this->labPageCurrent = labPageCurrent;
-    this->labResultCount = labResultCount;
-    this->labResultCurrent = labResultCurrent;
-    this->labResult = labResult;
-    this->labInfo = labInfo;
+    this->labRecordsTotal = labRecordsTotal;
+    this->labRecordsPerpage = labRecordsPerpage;
+    this->labSelectTime = labSelectTime;
+    this->labSelectInfo = labSelectInfo;
 
     this->btnFirst = btnFirst;
-    this->btnPre = btnPre;
+    this->btnPrevious = btnPrevious;
     this->btnNext = btnNext;
     this->btnLast = btnLast;
 
@@ -399,13 +319,39 @@ void DbPage::setControl(QTableView *tableView,
     this->connName = connName;
     this->tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
 
+    if (btnFirst == 0 || btnPrevious == 0 || btnNext == 0 || btnLast == 0) {
+        return;
+    }
+
     //挂载翻页按钮事件
     connect(btnFirst, SIGNAL(clicked()), this, SLOT(first()));
-    connect(btnPre, SIGNAL(clicked()), this, SLOT(previous()));
+    connect(btnPrevious, SIGNAL(clicked()), this, SLOT(previous()));
     connect(btnNext, SIGNAL(clicked()), this, SLOT(next()));
     connect(btnLast, SIGNAL(clicked()), this, SLOT(last()));
 }
 
+void DbPage::setControl(QTableView *tableView,
+                        QLabel *labPageTotal, QLabel *labPageCurrent,
+                        QLabel *labRecordsTotal, QLabel *labRecordsPerpage,
+                        QLabel *labSelectTime, QLabel *labSelectInfo,
+                        const QString &countName, const QString &connName)
+{
+    setControl(tableView, labPageTotal, labPageCurrent, labRecordsTotal, labRecordsPerpage, labSelectTime, labSelectInfo, 0, 0, 0, 0, countName, connName);
+}
+
+void DbPage::setControl(QTableView *tableView,
+                        QAbstractButton *btnFirst, QAbstractButton *btnPrevious,
+                        QAbstractButton *btnNext, QAbstractButton *btnLast,
+                        const QString &countName, const QString &connName)
+{
+    setControl(tableView, 0, 0, 0, 0, 0, 0, btnFirst, btnPrevious, btnNext, btnLast, countName, connName);
+}
+
+void DbPage::setControl(QTableView *tableView, const QString &countName, const QString &connName)
+{
+    setControl(tableView, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, countName, connName);
+}
+
 void DbPage::setConnName(const QString &connName)
 {
     this->connName = connName;
@@ -436,9 +382,9 @@ void DbPage::setWhereSql(const QString &whereSql)
     this->whereSql = whereSql;
 }
 
-void DbPage::setResultCurrent(int resultCurrent)
+void DbPage::setRecordsPerpage(int recordsPerpage)
 {
-    this->resultCurrent = resultCurrent;
+    this->recordsPerpage = recordsPerpage;
 }
 
 void DbPage::setColumnNames(const QList<QString> &columnNames)
@@ -481,45 +427,62 @@ void DbPage::setInsertColumnWidth(int insertColumnWidth)
     this->insertColumnWidth = insertColumnWidth;
 }
 
+void DbPage::changeBtnEnable()
+{
+    if (btnFirst == 0 || btnPrevious == 0 || btnNext == 0 || btnLast == 0) {
+        return;
+    }
+
+    //下面默认对上一页下一页按钮禁用
+    //也可以取消注释对第一页末一页同样处理
+    //因为到了第一页就可以不必再单击第一页和上一页
+    if (pageTotal <= 1) {
+        //如果只有一页数据则翻页按钮不可用
+        btnFirst->setEnabled(false);
+        btnLast->setEnabled(false);
+        btnPrevious->setEnabled(false);
+        btnNext->setEnabled(false);
+    } else {
+        //判断是否在首页末页禁用按钮
+        bool first = (pageCurrent == 1);
+        bool last = (pageCurrent == pageTotal);
+        btnFirst->setEnabled(!first);
+        btnLast->setEnabled(!last);
+        btnPrevious->setEnabled(!first);
+        btnNext->setEnabled(!last);
+    }
+}
+
 void DbPage::select()
 {
     //重置开始索引
     startIndex = 0;
     pageCurrent = 1;
+    pageTotal = 1;
+    changeBtnEnable();
 
     //假设只有一页
-    slot_receiveCount(resultCurrent, 0);
-
-    //全部禁用按钮,文本显示正在查询...
-    btnFirst->setEnabled(false);
-    btnLast->setEnabled(false);
-    btnNext->setEnabled(false);
-    btnPre->setEnabled(false);
+    slot_receiveCount(recordsPerpage, 0);
 
+    //文本显示正在查询...
     QString info = "正在查询...";
-
-    if (labInfo != 0) {
-        labInfo->setText(info);
+    if (labSelectInfo != 0) {
+        labSelectInfo->setText(info);
     }
-
     if (labPageCurrent != 0) {
         labPageCurrent->setText(info);
     }
-
-    if (labPageCount != 0) {
-        labPageCount->setText(info);
+    if (labPageTotal != 0) {
+        labPageTotal->setText(info);
     }
-
-    if (labResultCount != 0) {
-        labResultCount->setText(info);
+    if (labRecordsTotal != 0) {
+        labRecordsTotal->setText(info);
     }
-
-    if (labResultCurrent != 0) {
-        labResultCurrent->setText(info);
+    if (labRecordsPerpage != 0) {
+        labRecordsPerpage->setText(info);
     }
-
-    if (labResult != 0) {
-        labResult->setText(info);
+    if (labSelectTime != 0) {
+        labSelectTime->setText(info);
     }
 
     //开始分页绑定数据前,计算好总数据量以及行数
@@ -541,3 +504,54 @@ void DbPage::select()
     dbCountThread->select();
 #endif
 }
+
+void DbPage::selectPage(int page)
+{
+    //必须小于总页数+不是当前页
+    if (page >= 1 && page <= pageTotal && page != pageCurrent) {
+        //计算指定页对应开始的索引
+        startIndex = (page - 1) * recordsPerpage;
+        pageCurrent = page;
+        bindData(getPageSql());
+    }
+}
+
+void DbPage::first()
+{
+    //当前页不是第一页才能切换到第一页
+    if (pageTotal > 1 && pageCurrent != 1) {
+        startIndex = 0;
+        pageCurrent = 1;
+        bindData(getPageSql());
+    }
+}
+
+void DbPage::previous()
+{
+    //当前页不是第一页才能上一页
+    if (pageCurrent > 1) {
+        pageCurrent--;
+        startIndex -= recordsPerpage;
+        bindData(getPageSql());
+    }
+}
+
+void DbPage::next()
+{
+    //当前页小于总页数才能下一页
+    if (pageCurrent < pageTotal) {
+        pageCurrent++;
+        startIndex += recordsPerpage;
+        bindData(getPageSql());
+    }
+}
+
+void DbPage::last()
+{
+    //当前页不是末尾页才能切换到末尾页
+    if (pageTotal > 1 && pageCurrent != pageTotal) {
+        startIndex = (pageTotal - 1) * recordsPerpage;
+        pageCurrent = pageTotal;
+        bindData(getPageSql());
+    }
+}

dbpage/dbpage.h

@@ -37,13 +37,10 @@ private:
 public:
     //设置所有列居中
     void setAllCenter(bool allCenter);
-
     //设置居中对齐列索引集合
     void setAlignCenterColumn(const QList<int> &alignCenterColumn);
-
     //设置右对齐列索引集合
     void setAlignRightColumn(const QList<int> &alignRightColumn);
-
 };
 
 //计算复合条件的记录总行数,以便分页
@@ -87,7 +84,6 @@ public:
         DbType_Other = 255      //其他数据库
     };
 
-    static DbPage *Instance();
     explicit DbPage(QObject *parent = 0);
 
     //绑定数据到下拉框
@@ -97,21 +93,19 @@ public:
                          QList<QComboBox *> cboxs, const QString &connName = "qt_sql_default_connection");
 
 private:
-    static QScopedPointer<DbPage> self;
-
     int startIndex;             //分页开始索引,每次翻页都变动
     SqlQueryModel *queryModel;  //查询模型
 
-    QLabel *labPageCount;       //总页数标签
+    QLabel *labPageTotal;       //总页数标签
     QLabel *labPageCurrent;     //当前页标签
-    QLabel *labResultCount;     //总记录数标签
-    QLabel *labResultCurrent;   //每页记录数标签
-    QLabel *labResult;          //显示查询用时标签
-    QLabel *labInfo;            //总页数当前页总记录数每页记录数
+    QLabel *labRecordsTotal;    //总记录数标签
+    QLabel *labRecordsPerpage;  //每页记录数标签
+    QLabel *labSelectTime;      //显示查询用时标签
+    QLabel *labSelectInfo;      //总页数当前页总记录数每页记录数
 
     QTableView *tableView;      //显示数据的表格对象
     QAbstractButton *btnFirst;  //第一页按钮对象
-    QAbstractButton *btnPre;    //上一页按钮对象
+    QAbstractButton *btnPrevious;//上一页按钮对象
     QAbstractButton *btnNext;   //下一页按钮对象
     QAbstractButton *btnLast;   //末一页按钮对象
 
@@ -120,9 +114,9 @@ private:
     DbType dbType;              //数据库类型
 
     quint32 pageCurrent;        //当前第几页
-    quint32 pageCount;          //总页数
-    quint32 resultCount;        //总记录数
-    quint32 resultCurrent;      //每页显示记录数
+    quint32 pageTotal;          //总页数
+    quint32 recordsTotal;       //总记录数
+    quint32 recordsPerpage;     //每页显示记录数
 
     QString tableName;          //表名
     QString selectColumn;       //要查询的字段集合
@@ -135,12 +129,6 @@ private:
     QString insertColumnName;   //插入的列的标题
     int insertColumnWidth;      //插入的列的宽度
 
-private slots:
-    void first();               //第一页
-    void previous();            //上一页
-    void next();                //下一页
-    void last();                //末一页
-
 private slots:
     //绑定sql语句到表格
     void bindData(const QString &sql);
@@ -151,66 +139,79 @@ private slots:
     void slot_receiveCount(quint32 count, double msec);
 
 signals:
-    void receivePage(quint32 pageCurrent, quint32 pageCount, quint32 resultCount, quint32 resultCurrent);
+    //将翻页后的页码信息发出去可能其他地方要用到
+    void receivePage(quint32 pageCurrent, quint32 pageTotal, quint32 recordsTotal, quint32 recordsPerpage);
     void receiveCount(quint32 count, double msec);
 
 public slots:
     //设置需要显示数据的表格,数据翻页对应的按钮
     void setControl(QTableView *tableView,
-                    QLabel *labPageCount, QLabel *labPageCurrent,
-                    QLabel *labResultCount, QLabel *labResultCurrent,
-                    QLabel *labResult, QLabel *labInfo,
-                    QAbstractButton *btnFirst, QAbstractButton *btnPre,
+                    QLabel *labPageTotal, QLabel *labPageCurrent,
+                    QLabel *labRecordsTotal, QLabel *labRecordsPerpage,
+                    QLabel *labSelectTime, QLabel *labSelectInfo,
+                    QAbstractButton *btnFirst, QAbstractButton *btnPrevious,
                     QAbstractButton *btnNext, QAbstractButton *btnLast,
                     const QString &countName, const QString &connName = "qt_sql_default_connection");
+    void setControl(QTableView *tableView,
+                    QLabel *labPageTotal, QLabel *labPageCurrent,
+                    QLabel *labRecordsTotal, QLabel *labRecordsPerpage,
+                    QLabel *labSelectTime, QLabel *labSelectInfo,
+                    const QString &countName, const QString &connName = "qt_sql_default_connection");
+    void setControl(QTableView *tableView,
+                    QAbstractButton *btnFirst, QAbstractButton *btnPrevious,
+                    QAbstractButton *btnNext, QAbstractButton *btnLast,
+                    const QString &countName, const QString &connName = "qt_sql_default_connection");
+    void setControl(QTableView *tableView,
+                    const QString &countName, const QString &connName = "qt_sql_default_connection");
 
     //设置数据库连接名称
     void setConnName(const QString &connName);
-
     //设置数据库类型
     void setDbType(const DbType &dbType);
 
     //设置要查询的表名
     void setTableName(const QString &tableName);
-
     //设置要查询的字段列名集合
     void setSelectColumn(const QString &selectColumn);
 
     //设置排序sql
     void setOrderSql(const QString &orderSql);
-
     //设置条件sql
     void setWhereSql(const QString &whereSql);
 
     //设置每页显示多少行数据
-    void setResultCurrent(int resultCurrent);
-
+    void setRecordsPerpage(int recordsPerpage);
     //设置列名称集合
     void setColumnNames(const QList<QString> &columnNames);
-
     //设置列宽度集合
     void setColumnWidths(const QList<int> &columnWidths);
 
     //设置所有列居中
     void setAllCenter(bool allCenter);
-
     //设置居中对齐列索引集合
     void setAlignCenterColumn(const QList<int> &alignCenterColumn);
-
     //设置右对齐列索引集合
     void setAlignRightColumn(const QList<int> &alignRightColumn);
 
     //设置插入的列的索引
     void setInsertColumnIndex(int insertColumnIndex);
-
     //设置插入的列的标题
     void setInsertColumnName(const QString &insertColumnName);
-
     //设置插入的列的宽度
     void setInsertColumnWidth(int insertColumnWidth);
 
+    //根据首页末页禁用按钮
+    void changeBtnEnable();
     //执行查询
     void select();
+    //指定页跳转
+    void selectPage(int page);
+
+    //翻页 第一页+上一页+下一页+末一页
+    void first();
+    void previous();
+    void next();
+    void last();
 };
 
 #endif // DBPAGE_H

dbpage/frmdbpage.cpp

@@ -46,22 +46,20 @@ void frmDbPage::initForm()
     dbPage = new DbPage(this);
     //设置所有列居中显示
     dbPage->setAllCenter(true);
-    dbPage->setControl(ui->tableMain, ui->labPageCount, ui->labPageCurrent, ui->labResultCount, ui->labResultCurrent, ui->labResult, 0,
-                       ui->btnFirst, ui->btnPre, ui->btnNext, ui->btnLast, countName);
+    dbPage->setControl(ui->tableMain, ui->labPageTotal, ui->labPageCurrent, ui->labRecordsTotal, ui->labRecordsPerpage,
+                       ui->labSelectTime, 0, ui->btnFirst, ui->btnPreVious, ui->btnNext, ui->btnLast, countName);
     ui->tableMain->horizontalHeader()->setStretchLastSection(true);
     ui->tableMain->verticalHeader()->setDefaultSectionSize(25);
 }
 
 void frmDbPage::on_btnSelect_clicked()
 {
-    ui->labResult->setText("正在查询...");
-
     //绑定数据到表格
     QString sql = "where 1=1";
     dbPage->setTableName(tableName);
     dbPage->setOrderSql(QString("%1 %2").arg(countName).arg("asc"));
     dbPage->setWhereSql(sql);
-    dbPage->setResultCurrent(20);
+    dbPage->setRecordsPerpage(20);
     dbPage->setColumnNames(columnNames);
     dbPage->setColumnWidths(columnWidths);
     dbPage->select();

dbpage/frmdbpage.ui

@@ -88,7 +88,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QPushButton" name="btnPre">
+       <widget class="QPushButton" name="btnPreVious">
         <property name="minimumSize">
          <size>
           <width>50</width>
@@ -164,7 +164,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QLabel" name="labPageCount">
+       <widget class="QLabel" name="labPageTotal">
         <property name="minimumSize">
          <size>
           <width>0</width>
@@ -186,7 +186,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QLabel" name="labResultCount">
+       <widget class="QLabel" name="labRecordsTotal">
         <property name="minimumSize">
          <size>
           <width>0</width>
@@ -230,7 +230,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QLabel" name="labResultCurrent">
+       <widget class="QLabel" name="labRecordsPerpage">
         <property name="minimumSize">
          <size>
           <width>0</width>
@@ -252,7 +252,7 @@
        </widget>
       </item>
       <item>
-       <widget class="QLabel" name="labResult">
+       <widget class="QLabel" name="labSelectTime">
         <property name="minimumSize">
          <size>
           <width>0</width>

flatui/flatui.cpp

@@ -11,12 +11,12 @@
 #include "qdebug.h"
 
 QString FlatUI::setPushButtonQss(QPushButton *btn, int radius, int padding,
-                                    const QString &normalColor,
-                                    const QString &normalTextColor,
-                                    const QString &hoverColor,
-                                    const QString &hoverTextColor,
-                                    const QString &pressedColor,
-                                    const QString &pressedTextColor)
+                                 const QString &normalColor,
+                                 const QString &normalTextColor,
+                                 const QString &hoverColor,
+                                 const QString &hoverTextColor,
+                                 const QString &pressedColor,
+                                 const QString &pressedTextColor)
 {
     QStringList list;
     list.append(QString("QPushButton{border-style:none;padding:%1px;border-radius:%2px;color:%3;background:%4;}")
@@ -32,8 +32,8 @@ QString FlatUI::setPushButtonQss(QPushButton *btn, int radius, int padding,
 }
 
 QString FlatUI::setLineEditQss(QLineEdit *txt, int radius, int borderWidth,
-                                  const QString &normalColor,
-                                  const QString &focusColor)
+                               const QString &normalColor,
+                               const QString &focusColor)
 {
     QStringList list;
     list.append(QString("QLineEdit{border-style:none;padding:3px;border-radius:%1px;border:%2px solid %3;}")
@@ -47,9 +47,9 @@ QString FlatUI::setLineEditQss(QLineEdit *txt, int radius, int borderWidth,
 }
 
 QString FlatUI::setProgressQss(QProgressBar *bar, int barHeight,
-                                     int barRadius, int fontSize,
-                                     const QString &normalColor,
-                                     const QString &chunkColor)
+                               int barRadius, int fontSize,
+                               const QString &normalColor,
+                               const QString &chunkColor)
 {
 
     QStringList list;
@@ -64,10 +64,10 @@ QString FlatUI::setProgressQss(QProgressBar *bar, int barHeight,
 }
 
 QString FlatUI::setSliderQss(QSlider *slider, int sliderHeight,
-                                const QString &normalColor,
-                                const QString &grooveColor,
-                                const QString &handleBorderColor,
-                                const QString &handleColor)
+                             const QString &normalColor,
+                             const QString &grooveColor,
+                             const QString &handleBorderColor,
+                             const QString &handleColor)
 {
     int sliderRadius = sliderHeight / 2;
     int handleWidth = (sliderHeight * 3) / 2 + (sliderHeight / 5);
@@ -105,8 +105,8 @@ QString FlatUI::setSliderQss(QSlider *slider, int sliderHeight,
 }
 
 QString FlatUI::setRadioButtonQss(QRadioButton *rbtn, int indicatorRadius,
-                                     const QString &normalColor,
-                                     const QString &checkColor)
+                                  const QString &normalColor,
+                                  const QString &checkColor)
 {
     int indicatorWidth = indicatorRadius * 2;
 
@@ -124,10 +124,10 @@ QString FlatUI::setRadioButtonQss(QRadioButton *rbtn, int indicatorRadius,
 }
 
 QString FlatUI::setScrollBarQss(QWidget *scroll, int radius, int min, int max,
-                                   const QString &bgColor,
-                                   const QString &handleNormalColor,
-                                   const QString &handleHoverColor,
-                                   const QString &handlePressedColor)
+                                const QString &bgColor,
+                                const QString &handleNormalColor,
+                                const QString &handleHoverColor,
+                                const QString &handlePressedColor)
 {
     //滚动条离背景间隔
     int padding = 0;

flatui/flatui.h

@@ -24,13 +24,12 @@ class QCheckBox;
 class QScrollBar;
 
 #ifdef quc
-class Q_DECL_EXPORT FlatUI : public QObject
+class Q_DECL_EXPORT FlatUI
 #else
-class FlatUI : public QObject
+class FlatUI
 #endif
 
-{
-    Q_OBJECT
+{    
 public:
     //设置按钮样式
     static QString setPushButtonQss(QPushButton *btn,                               //按钮对象
@@ -52,11 +51,11 @@ public:
 
     //设置进度条样式
     static QString setProgressQss(QProgressBar *bar,
-                                     int barHeight = 8,                             //进度条高度
-                                     int barRadius = 5,                             //进度条半径
-                                     int fontSize = 9,                              //文字字号
-                                     const QString &normalColor = "#E8EDF2",        //正常颜色
-                                     const QString &chunkColor = "#E74C3C");        //进度颜色
+                                  int barHeight = 8,                             //进度条高度
+                                  int barRadius = 5,                             //进度条半径
+                                  int fontSize = 9,                              //文字字号
+                                  const QString &normalColor = "#E8EDF2",        //正常颜色
+                                  const QString &chunkColor = "#E74C3C");        //进度颜色
 
     //设置滑块条样式
     static QString setSliderQss(QSlider *slider,                                    //滑动条对象

flatui/frmflatui.h

@@ -3,8 +3,7 @@
 
 #include <QWidget>
 
-namespace Ui
-{
+namespace Ui {
 class frmFlatUI;
 }
 

smoothcurve/smoothcurve.h

@@ -7,9 +7,9 @@
 #include <QPainterPath>
 
 #ifdef quc
-class Q_DECL_EXPORT SmoothCurve : public QObject
+class Q_DECL_EXPORT SmoothCurve
 #else
-class SmoothCurve : public QObject
+class SmoothCurve
 #endif
 
 {