diff --git a/logPlus/formwell.cpp b/logPlus/formwell.cpp
index 252d09d..c45808d 100644
--- a/logPlus/formwell.cpp
+++ b/logPlus/formwell.cpp
@@ -1123,10 +1123,15 @@ void FormWell::getTableSize_Head_Biggest(int &iHight)
     //获取可视视图大小 tableWidget
     iHight = 0;
 
-    if(ui->tableWidget->rowCount()>0)
+    int iRowCnt = ui->tableWidget->rowCount();
+    if(iRowCnt>0)
     {
         //高度
         iHight = ui->tableWidget->rowHeight(0);
+        if(iHight == 0)
+        {
+            iHight = 1;
+        }
     }
     //
     int iHight_Big = 0;
diff --git a/logPlus/mainwindowcurve.cpp b/logPlus/mainwindowcurve.cpp
index 6946295..dd956d3 100644
--- a/logPlus/mainwindowcurve.cpp
+++ b/logPlus/mainwindowcurve.cpp
@@ -273,6 +273,48 @@ void MainWindowCurve::s_setRangeVScrollBar2(QString strUuid)
     ui->verticalScrollBar_2->setValue(0);
 }
 
+//窗口居中处理
+void MainWindowCurve::resizeWindow()
+{
+    //
+    QRect rect = this->rect();
+    int tempWidth = 0;
+    int tempHight = 0;
+
+    for(int i=0; i<ui->tableWidget_2->columnCount(); i++)
+    {
+        tempWidth += ui->tableWidget_2->columnWidth(i);
+        tempWidth += 1;
+    }
+    //
+    for(int j=0; j<ui->tableWidget_2->rowCount(); j++)
+    {
+        tempHight += ui->tableWidget_2->rowHeight(j);
+        tempHight += 1;
+    }
+
+    //预览图
+    if(g_bPreviewPrint)
+    {
+        ui->tableWidget_2->move(0, 2);
+        //ui->tableWidget_2->setGeometry(0, 2, tempWidth, tempHight);
+    }
+    else
+    {
+        //调整大小
+        if(rect.width()>tempWidth)
+        {
+            ui->tableWidget_2->move((rect.width()-tempWidth)/2, 2);
+            //ui->tableWidget_2->setGeometry((rect.width()-tempWidth)/2, 2, tempWidth, tempHight);
+        }
+        else
+        {
+            ui->tableWidget_2->move(0, 2);
+            //ui->tableWidget_2->setGeometry(0, 2, tempWidth, tempHight);
+        }
+    }
+}
+
 //2个滚动条位置
 void MainWindowCurve::SetScrollBar_Geometry()
 {
@@ -394,9 +436,9 @@ void MainWindowCurve::vertScrollBarChanged_Head(int value)
         int iHight1=0;
         int iHight2=0;
         int iHight3=0;
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
@@ -406,6 +448,7 @@ void MainWindowCurve::vertScrollBarChanged_Head(int value)
                      widgetWell->getRowHeight_Well(iHight1, iHight2, iHight3);
                      //
                      widgetWell->setRowHeight_Well(iHight1, 100+value, iHight3);
+                     //widgetWell->update();
                  }
              }
         }
@@ -482,9 +525,9 @@ void MainWindowCurve::vertScrollBarChanged(int iValue)
 //                continue;
 //            }
 //            //
-//            if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+//            if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
 //            {
-//                 auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+//                 auto myWidget = ui->tableWidget_2->cellWidget(1, i);
 //                 if(myWidget)
 //                 {
 //                     //
@@ -575,7 +618,7 @@ void MainWindowCurve::initMainToolBar()
     QIcon SaveAsSvgIcon(::GetImagePath()+"icon/ExportSVG.png");
     QIcon doubleHeadIcon(::GetImagePath()+"icon/oneortwohead.png");
     QIcon autorollIcon(::GetImagePath()+"icon/autoroll.png");
-    QIcon blackIcon(::GetImagePath()+"icon/image/black.png");
+    QIcon blackIcon(::GetImagePath()+"icon/black.png");
     QIcon zoominIcon(::GetImagePath()+"icon/zoomin.png");
     QIcon zoomoutIcon(::GetImagePath()+"icon/zoomout.png");
 
@@ -594,6 +637,7 @@ void MainWindowCurve::initMainToolBar()
     m_executeDepthShiftAc = new QAction(executeDepthShiftIcon, "校深", this);
     m_joindepthAc = new QAction(joindepthIcon, "拼接", this);
     m_autorollAc = new QAction(autorollIcon, "图像自滚", this);
+    m_PreviewPrintAc = new QAction(blackIcon, "预览图", this);
     m_ModuleOpenAc = new QAction(ModuleOpenIcon, "处理方法", this);
 
     ui->mainToolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon); //此种方式为文字显示在图标右侧
@@ -615,6 +659,7 @@ void MainWindowCurve::initMainToolBar()
     ui->mainToolBar->addAction(m_executeDepthShiftAc);      //校深
     ui->mainToolBar->addAction(m_joindepthAc);              //拼接
     ui->mainToolBar->addAction(m_autorollAc);               //图像自滚
+    //ui->mainToolBar->addAction(m_PreviewPrintAc);           //预览图
     ui->mainToolBar->addAction(m_ModuleOpenAc);             //处理方法
 
     // 设置为可选中
@@ -625,6 +670,7 @@ void MainWindowCurve::initMainToolBar()
     m_executeDepthShiftAc->setCheckable(true);      //校深
     m_joindepthAc->setCheckable(true);              //拼接
     m_autorollAc->setCheckable(true);               //图像自滚
+    m_PreviewPrintAc->setCheckable(true);           //预览图
 
     connect(m_selectWellAc, &QAction::triggered, this, &MainWindowCurve::s_selectWell);
     connect(m_fixwellsectionHeaderAc, &QAction::triggered, this, &MainWindowCurve::s_showHeadTable);
@@ -642,6 +688,7 @@ void MainWindowCurve::initMainToolBar()
     connect(m_executeDepthShiftAc, &QAction::triggered, this, &MainWindowCurve::s_ExecuteDepthShift);
     connect(m_joindepthAc, &QAction::triggered, this, &MainWindowCurve::s_ExecuteMerge);
     connect(m_autorollAc, &QAction::triggered, this, &MainWindowCurve::s_Autoroll);
+    connect(m_PreviewPrintAc, &QAction::triggered, this, &MainWindowCurve::s_PreviewPrint);
     connect(m_ModuleOpenAc, &QAction::triggered, this, &MainWindowCurve::s_ModuleOpen);
 
     connect(CallManage::getInstance(), SIGNAL(sig_SaveAsPicture()), this, SLOT(s_SaveAsPicture()));
@@ -2983,6 +3030,21 @@ void MainWindowCurve::onTimer()
     }
 }
 
+//预览图
+void MainWindowCurve::s_PreviewPrint()
+{
+    //
+    if(m_PreviewPrintAc->isChecked())
+    {
+        g_bPreviewPrint = true;
+    }
+    else
+    {
+        g_bPreviewPrint = false;
+    }
+    resizeWindow();
+}
+
 //校深
 void MainWindowCurve::s_ExecuteDepthShift()
 {
@@ -6011,9 +6073,9 @@ void MainWindowCurve::getTableSize_Head_Biggest(int &iHight)
             continue;
         }
         //
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
@@ -6128,9 +6190,9 @@ void MainWindowCurve::HideTableHead()
             continue;
         }
         //
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
@@ -6164,9 +6226,9 @@ void MainWindowCurve::ShowTableHead()
             continue;
         }
         //
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
@@ -6201,9 +6263,9 @@ void MainWindowCurve::ShowTableHead_All()
         int iHight1=0;
         int iHight2=0;
         int iHight3=0;
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
@@ -6239,9 +6301,9 @@ void MainWindowCurve::ShowTableHead_One()
         int iHight1=0;
         int iHight2=0;
         int iHight3=0;
-        if( ui->tableWidget_2->cellWidget(1, 0) != nullptr )
+        if( ui->tableWidget_2->cellWidget(1, i) != nullptr )
         {
-             auto myWidget = ui->tableWidget_2->cellWidget(1, 0);
+             auto myWidget = ui->tableWidget_2->cellWidget(1, i);
              if(myWidget)
              {
                  //
diff --git a/logPlus/mainwindowcurve.h b/logPlus/mainwindowcurve.h
index e40fd0e..fbffb8d 100644
--- a/logPlus/mainwindowcurve.h
+++ b/logPlus/mainwindowcurve.h
@@ -110,7 +110,8 @@ public:
     //图像自滚定时器
     QTimer *m_clockTimer = nullptr;
     bool m_bShowTrackHead = true; //显示道头
-
+    //预览图
+    bool g_bPreviewPrint = false;
 public:
     //黑白图，针对共享内存，使用老版本代码，需要以下定义
     //整图放大缩小比例
@@ -223,6 +224,8 @@ public slots:
 
     //重新设置滚动条范围
     void s_setRangeVScrollBar2(QString strUuid);
+    //窗口居中处理
+    void resizeWindow();
 
 public:
     QAction* m_selectWellAc = nullptr;              //选择井
@@ -239,6 +242,7 @@ public:
     QAction* m_executeDepthShiftAc = nullptr;       //校深
     QAction* m_joindepthAc = nullptr;               //拼接
     QAction* m_autorollAc = nullptr;                //图像自滚
+    QAction* m_PreviewPrintAc = nullptr;            //预览图
     QAction* m_ModuleOpenAc = nullptr;              //处理方法
 
 public slots:
@@ -329,6 +333,7 @@ public slots:
     void s_ExecuteDepthShift(); //校深
     void s_ExecuteMerge();      //拼接
     void s_Autoroll();          //图像自滚
+    void s_PreviewPrint();      //预览图
     void s_ModuleOpen();        //处理算法
     //
     void _slotExport(QPrinter &printer, int IsBmp, QString pngName, QString strTmpName);