打印功能，追加“打印设置”和“打印预览”功能，出图背景调整为白色，避免浪费墨。

logPlus/mainwindowcurve.cpp

@@ -26,6 +26,7 @@
 
 #include "DepthProgress.h"
 #include "wellheader.h"
+#include <QPageSetupDialog>
 
 //主窗口，为了方便获取tab当前页
 extern MainWindow *g_mainWindow;
@@ -93,7 +94,7 @@ MainWindowCurve::MainWindowCurve(QWidget *parent) :
     ui->toolBar_3->hide();
 	ui->toolBar_plugin->hide();
     //加载样式
-    //loadStyle(":/qrc/qss/flatgray.css");
+    loadStyle(":/qrc/qss/flatgray.css");
 
 	//this->setStyleSheet("QWidget{border: 1px solid black;}");
 	//ui->centralwidget->setVisible(false);
@@ -713,6 +714,8 @@ void MainWindowCurve::initMainToolBar()
     QIcon SaveAsPdfIcon(::GetImagePath()+"icon/ExportPDF.png");
     QIcon SaveAsSvgIcon(::GetImagePath()+"icon/ExportSVG.png");
     QIcon PrintIcon(::GetImagePath()+"icon/Print.png");
+    QIcon PrintSetupIcon(::GetImagePath()+"icon/PrintPage.png");
+    QIcon PrintPreviewIcon(::GetImagePath()+"icon/PrintPrev.png");
     QIcon doubleHeadIcon(::GetImagePath()+"icon/oneortwohead.png");
     QIcon crossIcon(::GetImagePath()+"icon/Cross.png");
     QIcon autorollIcon(::GetImagePath()+"icon/autoroll.png");
@@ -737,6 +740,8 @@ void MainWindowCurve::initMainToolBar()
     m_SaveAsPdfAc = new QAction(SaveAsPdfIcon, "导出PDF", this);
     m_SaveAsSvgAc = new QAction(SaveAsSvgIcon, "导出SVG", this);
     m_PrintAc = new QAction(PrintIcon, "打印", this);
+    m_PrintSetupAc = new QAction(PrintSetupIcon, "打印设置", this);
+    m_PrintPreviewAc = new QAction(PrintPreviewIcon, "打印预览", this);
     m_blackAc = new QAction(blackIcon, "黑白图", this);
     m_doubleHeadAc = new QAction(doubleHeadIcon, "单曲线头", this);
     m_executeDepthShiftAc = new QAction(executeDepthShiftIcon, "校深", this);
@@ -766,6 +771,8 @@ void MainWindowCurve::initMainToolBar()
     menuPrint->addAction(m_SaveAsPdfAc);              //导出PDF
     menuPrint->addAction(m_SaveAsSvgAc);              //导出SVG
     menuPrint->addAction(m_PrintAc);                  //打印
+    menuPrint->addAction(m_PrintSetupAc);             //打印设置
+    menuPrint->addAction(m_PrintPreviewAc);           //打印预览
     printMenuAction->setMenu(menuPrint);
 
 
@@ -835,6 +842,8 @@ void MainWindowCurve::initMainToolBar()
     connect(m_SaveAsPdfAc, &QAction::triggered, this, &MainWindowCurve::s_SaveAsPdf);
     connect(m_SaveAsSvgAc, &QAction::triggered, this, &MainWindowCurve::s_SaveAsSvg);    
     connect(m_PrintAc, &QAction::triggered, this, &MainWindowCurve::s_Print);
+    connect(m_PrintSetupAc, &QAction::triggered, this, &MainWindowCurve::s_PrintSetup);
+    connect(m_PrintPreviewAc, &QAction::triggered, this, &MainWindowCurve::s_PrintPreview);
 
     connect(m_blackAc, &QAction::triggered, this, &MainWindowCurve::s_Black);
     connect(m_doubleHeadAc, &QAction::triggered, this, &MainWindowCurve::s_DoubleHead);
@@ -3693,6 +3702,12 @@ void MainWindowCurve::_slotExport(QPrinter &printer, int IsBmp, QString pngName,
         tmpPath += "/";
     }
 
+    int left=9, top=20, right=9, bottom=0;
+    if (ui->centralwidget->layout())
+    {
+        ui->centralwidget->layout()->getContentsMargins(&left, &top, &right, &bottom);
+    }
+
     //获取可视视图大小 tableWidget_2
     int iHight = 0;
     int iWidth = 0;
@@ -3701,14 +3716,14 @@ void MainWindowCurve::_slotExport(QPrinter &printer, int IsBmp, QString pngName,
     {
         iHight += ui->tableWidget_2->rowHeight(i);
     }
-    iHight += 9 + (ui->tableWidget_2->rowCount()+1);//上margin + 边框n+1
+    iHight += top + (ui->tableWidget_2->rowCount()+1);//上margin + 边框n+1
     //宽度
     for(int j=0; j<ui->tableWidget_2->columnCount(); j++)
     {
 
         iWidth += ui->tableWidget_2->columnWidth(j);
     }
-    iWidth += 9*2 + (ui->tableWidget_2->columnCount()+1) +40;//左右margin + 边框n+1
+    iWidth += left + right + (ui->tableWidget_2->columnCount()+1) +40;//左右margin + 边框n+1
 //    if(iWidth < ui->tableWidget_2->width())
 //    {
 //        iWidth = ui->tableWidget_2->width();
@@ -3839,7 +3854,7 @@ void MainWindowCurve::_slotExport(QPrinter &printer, int IsBmp, QString pngName,
         bDoubleHead = false;
     }
 
-    int iTableWellTrack_height = ui->tableWidget_2->rowHeight(0) + (9+3) + iTableSize_Head -1 +13;
+    int iTableWellTrack_height = ui->tableWidget_2->rowHeight(0) + (top+3) + iTableSize_Head -1 +2;
     //图片高度
     int iTotalSize_Height = iHight_Head+iHight_Tail;
     int iNum = dDeep/dScrollHeight;
@@ -4150,6 +4165,53 @@ void MainWindowCurve::_slotExport(QPrinter &printer, int IsBmp, QString pngName,
     ShowTableHead_One();
     //2个滚动条位置
     SetScrollBar_Geometry();
+
+    //锁头
+    s_showHeadTable();     //显示/隐藏图头
+}
+
+//打印设置
+void MainWindowCurve::s_PrintSetup()
+{
+//    QPrinter printer(QPrinter::HighResolution);
+//    QPageSetupDialog dialog(&printer);
+//    if (dialog.exec() == QDialog::Accepted) {
+//        // 用户点击了确定，printer 对象已更新为新的页面设置
+//        // 可以在此处获取设置好的纸张大小、方向等
+//        qDebug() << "Paper size:" << printer.paperSize();
+//    }
+
+    int left, top, right, bottom;
+    if (ui->centralwidget->layout())
+    {
+        ui->centralwidget->layout()->getContentsMargins(&left, &top, &right, &bottom);
+
+        ui->centralwidget->layout()->setContentsMargins(left+10, top+10, right+10, bottom+10);
+    }
+
+
+    QMessageBox::information(NULL,"提示","打印设置完成！",QMessageBox::Ok);
+    //居中
+    //emit sig_resizeWindow();
+
+    //锁头
+    s_showHeadTable();
+}
+
+//打印预览
+void MainWindowCurve::s_PrintPreview()
+{
+    QPrinter printer(QPrinter::HighResolution);
+    QPrintPreviewDialog preview(&printer);
+    QObject::connect(&preview, SIGNAL(paintRequested(QPrinter*)),
+             this, SLOT(printPreview(QPrinter*)));
+    preview.exec();
+}
+
+//打印预览
+void MainWindowCurve::printPreview(QPrinter *printer)
+{
+    _slotExport(*printer, 0, "", "");
 }
 
 //打印

logPlus/mainwindowcurve.h

@@ -73,6 +73,9 @@ public slots:
     void slotCreateHead();
     void slotCreateTail();
 
+    //打印预览
+    void printPreview(QPrinter*printer);
+
 public:
 	MainWindowSplitter* m_pParentWin = NULL;
 
@@ -252,6 +255,8 @@ public:
     QAction* m_SaveAsPdfAc = nullptr;               //导出PDF
     QAction* m_SaveAsSvgAc = nullptr;               //导出SVG
     QAction* m_PrintAc = nullptr;                   //打印
+    QAction* m_PrintSetupAc = nullptr;              //打印设置
+    QAction* m_PrintPreviewAc = nullptr;            //打印预览
     QAction* m_blackAc = nullptr;                   //黑白图
     QAction* m_doubleHeadAc = nullptr;              //单曲线头
     QAction* m_executeDepthShiftAc = nullptr;       //校深
@@ -290,7 +295,7 @@ public slots:
     void s_pinLvAc();       // 频率统计
     void s_NewGanZhuangTu(); // 杆状图
     void s_roseAc();        // 玫瑰图
-    void s_dcaAc();     // DCA分析
+    void s_dcaAc();         // DCA分析
     void s_Jykt();          // 井眼垮塌矢量图
     void s_Denv();          // 井斜方位图
     void s_DrawImage();     // 图像 成图
@@ -346,6 +351,8 @@ public slots:
     void s_SaveAsPdf();         //导出PDF
     void s_SaveAsSvg();         //导出SVG
     void s_Print();             //打印
+    void s_PrintSetup();        //打印设置
+    void s_PrintPreview();      //打印预览
     void s_Zoom();              //缩放
     void s_ZoomIn();            //放大
     void s_ZoomOut();           //缩小

logPlus/mainwindowcurve.ui

@@ -13,6 +13,12 @@
   <property name="windowTitle">
    <string>MainWindow</string>
   </property>
+  <property name="styleSheet">
+   <string notr="true">QMainWindow
+{
+	background-color: #FFFFFF;
+}</string>
+  </property>
   <widget class="QWidget" name="centralwidget">
    <property name="styleSheet">
     <string notr="true"/>