【全网最完整】Open CASCADE Technology (OCCT) 构建项目，QT可视化操作，添加自定义测试内容

前言

1、项目所需工具下载

2、使用CMake编译源码

3、配置项目运行环境

4、如何自定义测试项目

5、总结

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前言

        本文为了记录自己在实习的过程中，学习到的有关OCCT开源项目的搭建工作，旨在教会小白从0开始下载开源项目及环境搭配，以及如何添加自定义测试内容，最终结果展示如下：

1、项目所需工具下载

本项目共需要使用四个工具，分别是OCCT开源代码，QT环境，CMake构建工具，VS2019，版本也会介绍。我会把CMake、VS2019、第三方库放到Github链接里​​​​​https://github.com/shadow0fiend/OCCT-Project，OCCT源码以及QT环境需要自己下载

其中下载链接如下：

OCCT（7.8或7.6或7.5皆可）：Download - Open CASCADE Technology

第三方库及VS2019：GitHub - shadow0fiend/OCCT-Project: 构建OCCT项目

QT工具（5.14.2）：Index of /archive/qt

CMake（3.29.3）：Download CMake

其中安装过程如下：

OCCT：下载64位的压缩包，解压到本地即可。

QT：对于新手，建议在勾选下载内容的时候全部选上（简单粗暴，不会缺少东西）

详情下载过程请参考链接：Qt5.14.2安装、配置及测试（Win10）-CSDN博客

CMake：无脑下一步即可

详情下载过程请参考链接：Windows下Cmake安装步骤详解（图文）_windows终端安装cmake-CSDN博客

安装完以后，本地应该有以下几个内容，注意检查cmake-gui、OCCT源码、编译用的三方库（下图product）、QT环境、VS2019

2、使用CMake编译源码

步骤1：在OCCT源码中建立一个build文件夹，用于存放编译后的文件

步骤2：打开CMake-gui，第一个位置填入OCCT源码文件夹的路径，第二个位置填入刚才创建好的build文件夹的路径

步骤3：点击configure，选择配置vs2019，x64，点击finish

步骤4：

第一步，在3RDPARTY_DIR这一行，填入第三方库文件的路径，也就是product的路径。

第二步，然后勾选上BUILD_SAMPLES_QT这一行。

第三步点击config。

步骤5：

第一步，修改QT路径，这个Qt5.14.2是安装完QT以后的文件夹，自行在里面找对应的文件（如果没有找到，应该是QT安装下载的时候，有的选项没有勾上）

第二步，改完以后点击config，点击generate，点击open project

步骤7：cmake配置完毕，最终配置结果如下所示

3、配置项目运行环境

生成的项目如下所示（如果没有勾选QT，那么编译完成以后的项目是不包含Samples文件的，只有非常简陋的可视化界面）：

步骤1：鼠标右击OCCTOverview，设置OCCTOverview为启动项。

步骤2：鼠标右击OCCTOverview，依次找到属性、Debugging、environment，将以下内容粘贴进去，这是配置项目环境变量的。注意：需要将路径修改为自己电脑的路径。

配置解释：

CASROOT需要配置OCCT源码文件夹

CSF_OCCT都是OCCT源码文件夹里面的文件

最后一行是配置QT的bin，QT的platforms，第三方库文件freetype，freeimage

CASROOT=E:\cpp\code\OCCT\OCCT-7_8_0CSF_FPE=0CSF_OCCTResourcePath=E:\cpp\code\OCCT\OCCT-7_8_0/srcCSF_OCCTDataPath=E:\cpp\code\OCCT\OCCT-7_8_0/dataCSF_OCCTSamplesPath=E:\cpp\code\OCCT\OCCT-7_8_0/samplesCSF_OCCTTestsPath=E:\cpp\code\OCCT\OCCT-7_8_0/testsCSF_OCCTDocPath=E:\cpp\code\OCCT\OCCT-7_8_0/docQT_DEBUG_PLUGINS=1PATH=%PATH%;D:\Qt\Qt5.14.2\5.14.2\msvc2015_64\bin;D:\Qt\Qt5.14.2\5.14.2\msvc2015_64\plugins\platforms;E:\cpp\code\OCCT\products\freetype-2.5.5-vc14-64\bin;E:\cpp\code\OCCT\products\freeimage-3.17.0-vc14-64\bin;

步骤3：复制  D:\Qt\Qt5.14.2\5.14.2\msvc2015_64\plugins 路径下的platforms文件，粘贴到 E:\cpp\code\OCCT\OCCT-7_8_0\build\win64\vc14\bind （生成的build文件里）路径下，如果要在release下运行，则将其粘贴到 E:\cpp\code\OCCT\OCCT-7_8_0\build\win64\vc14\bin路径下。

步骤4：编译运行即可完成。

4、如何自定义测试项目

先看自己修改的结果，在QT窗口自己添加按钮，用于触发函数，然后再在被触发的函数里编写自己的测试代码，就可以完成自定义测试了。

具体来说，需要修改5个地方：

找到OCCT源码里的samples文件（注意，不是build里的samples），进去以后找到OCCTOverview，再找到Code文件夹。我的路径是：E:\cpp\code\OCCT\OCCT-7_8_0\samples\OCCTOverview\code

第一处修改：把自己写的cxx文件和.h文件放在这里（注意：直接在build里右键添加cxx文件是添加不到这里来的，因为那只是在build文件里添加了，而这是OCCT的源码文件，只能在这里添加以后，通过cmake编译进build才行）

具体的cxx和.h文件的写法参考如下，可以仿照源码的 TopologySamples.cxx文件的写法，看我的cxx和TopologySamples.cxx不同的地方即可，按照对应位置改就行。这里我附上我的源码。

#include "PengKaiSamples.h"void PengKaiSamples::ExecuteSample(const TCollection_AsciiString& theSampleName){Standard_Boolean anIsSamplePresent = Standard_True;FindSourceCode(theSampleName);if (theSampleName == "FirstTest")FirstTest();else{myResult << "No function found: " << theSampleName;myCode += TCollection_AsciiString("No function found: ") + theSampleName;anIsSamplePresent = Standard_False;}myIsProcessed = anIsSamplePresent;}void PengKaiSamples::FirstTest(){for (int i = 0; i < 20; i++){std::cout << "enter FirstTest" << std::endl;}}

#ifndef PENGKAISAMPLES_H#define PENGKAISAMPLES_H#include "BaseSample.h"#include <AIS_InteractiveContext.hxx>//! Implements PengKai samplesclass PengKaiSamples : public BaseSample{DEFINE_STANDARD_RTTI_INLINE(PengKaiSamples, BaseSample)public:PengKaiSamples(const TCollection_AsciiString& theSampleSourcePath,const Handle(AIS_InteractiveContext)& theContext): BaseSample(theSampleSourcePath, theContext){}protected:virtual void ExecuteSample(const TCollection_AsciiString& theSampleName) Standard_OVERRIDE;private:// One function for every samplevoid FirstTest();};#endif  //PENGKAISAMPLES_H

第二处修改：添加XML文件

思路：仿照其他xml文件来写

<Menu>  <MenuItem name="PengKai">    <MenuItem name="PengKai Test">      <Sample name="FirstTest" function="FirstTest"/>    </MenuItem>  </MenuItem></Menu>

第三处修改：

修改FILES文件，仿照其他人的写法，把cxx文件、xml文件和.h文件添加进去

AdaptorCurve2d_AIS.cxxAdaptorCurve2d_AIS.hAdaptorCurve_AIS.cxxAdaptorCurve_AIS.hAdaptorPnt2d_AIS.cxxAdaptorPnt2d_AIS.hAdaptorVec_AIS.cxxAdaptorVec_AIS.hBaseSample.cxxBaseSample.hDataExchange.xmlDataExchangeSamples.cxxDataExchangeSamples.hGeometry.xmlGeometrySamples.cxxGeometrySamples.hMakeBottle.cxxMakeBottle.hOcaf.xmlOcafSamples.cxxOcafSamples.hSample2D_Face.cxxSample2D_Face.hSample2D_Image.cxxSample2D_Image.hSample2D_Markers.cxxSample2D_Markers.hSamples.qrcTOcafFunction_BoxDriver.cxxTOcafFunction_BoxDriver.hTOcafFunction_CutDriver.cxxTOcafFunction_CutDriver.hTOcafFunction_CylDriver.cxxTOcafFunction_CylDriver.hTOcaf_Application.cxxTOcaf_Application.hTopology.xmlTopologySamples.cxxTopologySamples.hTriangulation.xmlTriangulationSamples.cxxTriangulationSamples.hViewer2d.xmlViewer2dSamples.cxxViewer2dSamples.hViewer3d.xmlViewer3dSamples.cxxViewer3dSamples.hPengKai.xmlPengKaiSamples.cxxPengKaiSamples.h

第四处修改：

找到samples文件夹里的qt -> Common -> src，找到这两个cxx文件，进去修改

仿照文件里Topology结构的写法来写，把所有带有Topology的地方全部换成自己修改的名字。

内容太多，这里不易说明，建议直接拿我修改后的代码与源码做对比，可以看出添加的部分在哪里

// Copyright (c) 2020 OPEN CASCADE SAS//// This file is part of the examples of the Open CASCADE Technology software library.//// Permission is hereby granted, free of charge, to any person obtaining a copy// of this software and associated documentation files (the "Software"), to deal// in the Software without restriction, including without limitation the rights// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell// copies of the Software, and to permit persons to whom the Software is// furnished to do so, subject to the following conditions://// The above copyright notice and this permission notice shall be included in all// copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE#include "ApplicationCommon.h"#include <Standard_WarningsDisable.hxx>#include <QApplication>#include <QDir>#include <QFile>#include <QFont>#include <QFrame>#include <QGroupBox>#include <QMap>#include <QMdiArea>#include <QMdiSubWindow>#include <QMenuBar>#include <QMessageBox>#include <QPair>#include <QSplitter>#include <QStatusBar>#include <QtGlobal>#include <QHBoxLayout>#include <QVBoxLayout>#include <QWidget>#include <QDomDocument>#include <QDomAttr>#include <Standard_WarningsRestore.hxx>#include <OpenGl_GraphicDriver.hxx>#include <OSD_Environment.hxx>#include <stdlib.h>#include <memory>ApplicationCommonWindow::ApplicationCommonWindow (ApplicationType theCategory): QMainWindow (nullptr),  myAppType(theCategory),  myStdToolBar (nullptr),  myViewBar (nullptr),  myCasCadeBar (nullptr),  myFilePopup (nullptr),  myCategoryPopup (nullptr){  ALL_CATEGORIES[AppType_Geometry] = "Geometry";  ALL_CATEGORIES[AppType_Topology] = "Topology";  ALL_CATEGORIES[AppType_Triangulation] = "Triangulation";  ALL_CATEGORIES[AppType_DataExchange] = "DataExchange";  ALL_CATEGORIES[AppType_Ocaf] = "OCAF";  ALL_CATEGORIES[AppType_Viewer3d] = "3D viewer";  ALL_CATEGORIES[AppType_Viewer2d] = "2D Viewer";  ALL_CATEGORIES[AppType_PengKai] = "PengKai";  mySampleMapper   = new QSignalMapper(this);  myExchangeMapper = new QSignalMapper(this);  myOcafMapper     = new QSignalMapper(this);  myViewer3dMapper = new QSignalMapper(this);  myViewer2dMapper = new QSignalMapper(this);  myCategoryMapper = new QSignalMapper(this);  connect(mySampleMapper,   SIGNAL(mapped(const QString &)), this, SLOT(onProcessSample(const QString &)));  connect(myExchangeMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessExchange(const QString &)));  connect(myOcafMapper,     SIGNAL(mapped(const QString &)), this, SLOT(onProcessOcaf(const QString &)));  connect(myViewer3dMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessViewer3d(const QString &)));  connect(myViewer2dMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessViewer2d(const QString &)));  connect(myCategoryMapper, SIGNAL(mapped(const QString &)), this, SLOT(onChangeCategory(const QString &)));  setFocusPolicy(Qt::StrongFocus);  QFont aCodeViewFont;  aCodeViewFont.setFamily("Courier");  aCodeViewFont.setFixedPitch(true);  aCodeViewFont.setPointSize(10);  QGroupBox* aCodeFrame = new QGroupBox(tr("Sample code"));  QVBoxLayout* aCodeLayout = new QVBoxLayout(aCodeFrame);  aCodeLayout->setContentsMargins(3, 3, 3, 3);  myCodeView = new QTextEdit(aCodeFrame);  aCodeLayout->addWidget(myCodeView);  myCodeView->setDocumentTitle("Code");  myCodeView->setLineWrapMode(QTextEdit::NoWrap);  myCodeView->setReadOnly(true);  myCodeView->setFont(aCodeViewFont);  myCodeViewHighlighter = new OcctHighlighter(myCodeView->document());  QGroupBox* aResultFrame = new QGroupBox(tr("Output"));  QVBoxLayout* aResultLayout = new QVBoxLayout(aResultFrame);  aResultLayout->setContentsMargins(3, 3, 3, 3);  myResultView = new QTextEdit(aResultFrame);  aResultLayout->addWidget(myResultView);  myResultView->setDocumentTitle("Output");  myResultView->setReadOnly(true);  myResultView->setFont(aCodeViewFont);  QSplitter* aCodeResultSplitter = new QSplitter(Qt::Vertical);  aCodeResultSplitter->addWidget(aCodeFrame);  aCodeResultSplitter->addWidget(aResultFrame);  myDocument3d = createNewDocument();  myDocument2d = createNewDocument();  QFrame* aViewFrame = new QFrame;  aViewFrame->setFrameStyle(QFrame::Panel | QFrame::Sunken);  aViewFrame->setLineWidth(3);  QVBoxLayout* aViewLayout = new QVBoxLayout(aViewFrame);  aViewLayout->setContentsMargins(0, 0, 0, 0);  myGeomWidget = new GeomWidget(myDocument3d, myDocument2d, aViewFrame);  aViewLayout->addWidget(myGeomWidget);  myGeomWidget->setContentsMargins(0, 0, 0, 0);  QSplitter* aGeomTextSplitter = new QSplitter(Qt::Horizontal);  aGeomTextSplitter->addWidget(aViewFrame);  aGeomTextSplitter->addWidget(aCodeResultSplitter);  aGeomTextSplitter->setStretchFactor(0, 1);  aGeomTextSplitter->setStretchFactor(1, 1);  QList<int> aSizeList;  aSizeList.append(640);  aSizeList.append(640);  aGeomTextSplitter->setSizes(aSizeList);  setCentralWidget(aGeomTextSplitter);#include <Standard_WarningsDisable.hxx>  Q_INIT_RESOURCE(Samples);#include <Standard_WarningsRestore.hxx>  TCollection_AsciiString aSampleSourcePach = getSampleSourceDir();  myGeometrySamples      = new GeometrySamples(aSampleSourcePach,                                               myDocument3d->getContext());  myTopologySamples      = new TopologySamples(aSampleSourcePach,                                               myDocument3d->getContext());  myTriangulationSamples = new TriangulationSamples(aSampleSourcePach,                                                    myDocument3d->getContext());  myDataExchangeSamples  = new DataExchangeSamples(aSampleSourcePach,                                                   myGeomWidget->Get3dView(),                                                   myDocument3d->getContext());  myOcafSamples          = new OcafSamples(aSampleSourcePach,                                           myDocument3d->getViewer(),                                           myDocument3d->getContext());  myViewer3dSamples      = new Viewer3dSamples(aSampleSourcePach,                                               myGeomWidget->Get3dView(),                                               myDocument3d->getContext());  myViewer2dSamples      = new Viewer2dSamples(aSampleSourcePach,                                               myGeomWidget->Get2dView(),                                               myDocument2d->getViewer(),                                               myDocument2d->getContext());  myPengKaiSamples      = new PengKaiSamples(aSampleSourcePach,                                               myDocument3d->getContext());  MenuFormXml(":/menus/Geometry.xml",      mySampleMapper,   myGeometryMenus);  MenuFormXml(":/menus/Topology.xml",      mySampleMapper,   myTopologyMenus);  MenuFormXml(":/menus/Triangulation.xml", mySampleMapper,   myTriangulationMenus);  MenuFormXml(":/menus/DataExchange.xml",  myExchangeMapper, myDataExchangeMenus);  MenuFormXml(":/menus/Ocaf.xml",          myOcafMapper,     myOcafMenus);  MenuFormXml(":/menus/Viewer3d.xml",      myViewer3dMapper, myViewer3dMenus);  MenuFormXml(":/menus/Viewer2d.xml",      myViewer2dMapper, myViewer2dMenus);  MenuFormXml(":/menus/PengKai.xml",      mySampleMapper, myPengKaiMenus);  onChangeCategory(ALL_CATEGORIES[myAppType]);  resize(1280, 560);}void ApplicationCommonWindow::RebuildMenu(){  menuBar()->clear();  myStdActions[StdActions_FileQuit] = CreateAction("Quit", "CTRL+Q");  connect(myStdActions[StdActions_FileQuit], SIGNAL(triggered()), this, SLOT(onCloseAllWindows()));  myStdActions[StdActions_HelpAbout] = CreateAction("About", "F1", ":/icons/help.png");  connect(myStdActions[StdActions_HelpAbout], SIGNAL(triggered()), this, SLOT(onAbout()));  // populate a menu with all actions  myFilePopup = new QMenu(this);  myFilePopup = menuBar()->addMenu(tr("&File"));  myFilePopup->addAction(myStdActions[StdActions_FileQuit]);  myCategoryPopup = new QMenu(this);  myCategoryPopup = menuBar()->addMenu(tr("&Category"));  foreach (ApplicationType aCategory, ALL_CATEGORIES.keys())  {    QString aCategoryName = ALL_CATEGORIES.value(aCategory);    QAction* anAction = myCategoryPopup->addAction(aCategoryName);    anAction->setText(aCategoryName);    myCategoryMapper->setMapping(anAction, aCategoryName);    connect(anAction, SIGNAL(triggered()), myCategoryMapper, SLOT(map()));    myCategoryPopup->addAction(anAction);    myCategoryActions.insert(aCategory, anAction);  }  foreach (QMenu* aSampleMenu, GetCurrentMenus())  {    menuBar()->addMenu(aSampleMenu);  }  // add a help menu  QMenu* aHelp = new QMenu(this);  menuBar()->addSeparator();  aHelp = menuBar()->addMenu(tr("&Help"));  aHelp->addAction(myStdActions[StdActions_HelpAbout]);}Handle(BaseSample) ApplicationCommonWindow::GetCurrentSamples(){  switch (myAppType)  {    case AppType_Geometry:      return myGeometrySamples;    case AppType_Topology:      return myTopologySamples;    case AppType_Triangulation: return myTriangulationSamples;    case AppType_DataExchange:  return myDataExchangeSamples;    case AppType_Ocaf:          return myOcafSamples;    case AppType_Viewer2d:      return myViewer2dSamples;    case AppType_Viewer3d:      return myViewer3dSamples;    case AppType_PengKai:      return myPengKaiSamples;    case AppType_Unknown:      break;  }  throw QString("Unknown Application type");}const QList<QMenu*>& ApplicationCommonWindow::GetCurrentMenus(){  switch (myAppType)  {    case AppType_Geometry:      return myGeometryMenus;    case AppType_Topology:      return myTopologyMenus;    case AppType_Triangulation: return myTriangulationMenus;    case AppType_DataExchange:  return myDataExchangeMenus;    case AppType_Ocaf:          return myOcafMenus;    case AppType_Viewer2d:      return myViewer2dMenus;    case AppType_Viewer3d:      return myViewer3dMenus;    case AppType_PengKai:      return myPengKaiMenus;    case AppType_Unknown:      break;  }  throw QString("Unknown Application type");}DocumentCommon* ApplicationCommonWindow::createNewDocument(){  return new DocumentCommon(this);}void ApplicationCommonWindow::onChangeCategory(const QString& theCategory){  myAppType = ALL_CATEGORIES.key(theCategory);  setWindowTitle(ALL_CATEGORIES[myAppType]);  myOcafSamples->ClearExtra();  myViewer3dSamples->ClearExtra();  myViewer2dSamples->ClearExtra();  GetCurrentSamples()->Clear();  myDocument3d->Clear();  myDocument2d->Clear();  myCodeView->setPlainText("");  myResultView->setPlainText("");  GetCurrentSamples()->AppendCube();  myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());  myGeomWidget->FitAll();  RebuildMenu();  switch (myAppType)  {    case AppType_DataExchange:    {      myDataExchangeSamples->AppendBottle();      myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());      myGeomWidget->Show3d();      break;    }    case AppType_Ocaf:    {      onProcessOcaf("CreateOcafDocument");      myGeomWidget->Show3d();      break;    }    case AppType_Viewer2d:    {      myGeomWidget->Show2d();      break;    }    case AppType_Viewer3d:    {      myViewer3dSamples->AppendBottle();      myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());      myGeomWidget->Show3d();      break;    }    case AppType_Geometry:    case AppType_Topology:    case AppType_PengKai:    case AppType_Triangulation:    case AppType_Unknown:    {      break;    }  }}void ApplicationCommonWindow::onAbout(){  QMessageBox::information(this, tr("OCCT Overview"),    tr("Qt based application to study OpenCASCADE Technology"),    tr("Ok"), QString::null, QString::null, 0, 0);}TCollection_AsciiString ApplicationCommonWindow::getSampleSourceDir(){  TCollection_AsciiString aSampleSourceDir = OSD_Environment("CSF_OCCTOverviewSampleCodePath").Value();  if (aSampleSourceDir.IsEmpty())  {    TCollection_AsciiString aCasRoot = OSD_Environment("CASROOT").Value();    if (!aCasRoot.IsEmpty())    {      aSampleSourceDir = aCasRoot + "/samples/OCCTOverview/code";    }  }  return aSampleSourceDir;}QAction* ApplicationCommonWindow::CreateAction (const QString& theActionName,                                                const QString& theShortcut,                                                const QString& theIconName){  QAction* aAction(NULL);  if (theIconName.isEmpty())  {    aAction = new QAction(theActionName, this);  }  else  {    QPixmap aIcon = QPixmap(theIconName);    aAction = new QAction(aIcon, theActionName, this);  }  aAction->setToolTip(theActionName);  aAction->setStatusTip(theActionName);  aAction->setShortcut(theShortcut);  return aAction;}template <typename PointerToMemberFunction>QAction* ApplicationCommonWindow::CreateSample (PointerToMemberFunction theHandlerMethod,                                                const char* theActionName){  QAction* anAction = new QAction(QObject::tr(theActionName), this);  connect(anAction, SIGNAL(triggered()), this, SLOT(theHandlerMethod()));  return anAction;}void ApplicationCommonWindow::resizeEvent(QResizeEvent* e){  QMainWindow::resizeEvent(e);  statusBar()->setSizeGripEnabled(!isMaximized());}void ApplicationCommonWindow::onProcessSample(const QString& theSampleName){  QApplication::setOverrideCursor(Qt::WaitCursor);  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  GetCurrentSamples()->Process(theSampleName.toUtf8().data());  myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());  myDocument2d->SetObjects(GetCurrentSamples()->Get2dObjects());  myCodeView->setPlainText(GetCurrentSamples()->GetCode().ToCString());  myResultView->setPlainText(GetCurrentSamples()->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessExchange(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  int aMode = 0;  QString aFileName = selectFileName(theSampleName, getDataExchangeDialog(theSampleName), aMode);  if (aFileName.isEmpty())  {    return;  }  QApplication::setOverrideCursor(Qt::WaitCursor);  myDataExchangeSamples->SetFileName(aFileName.toUtf8().data());  myDataExchangeSamples->SetStepType(static_cast<STEPControl_StepModelType>(aMode));  myDataExchangeSamples->Process(theSampleName.toUtf8().data());  myDocument3d->SetObjects(myDataExchangeSamples->Get3dObjects());  myDocument2d->SetObjects(myDataExchangeSamples->Get2dObjects());  myCodeView->setPlainText(myDataExchangeSamples->GetCode().ToCString());  myResultView->setPlainText(myDataExchangeSamples->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessOcaf(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  if (theSampleName.indexOf("Dialog") == 0)  {    int aMode = 0; // not used    QString aFileName = selectFileName(theSampleName, getOcafDialog(theSampleName), aMode);    if (aFileName.isEmpty())    {      return;    }    myOcafSamples->SetFileName(aFileName.toUtf8().data());  }  QApplication::setOverrideCursor(Qt::WaitCursor);  myOcafSamples->Process(theSampleName.toUtf8().data());  myDocument2d->SetObjects(myOcafSamples->Get2dObjects());  myCodeView->setPlainText(myOcafSamples->GetCode().ToCString());  myResultView->setPlainText(myOcafSamples->GetResult().ToCString());  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessViewer3d(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  QApplication::setOverrideCursor(Qt::WaitCursor);  myViewer3dSamples->Process(theSampleName.toUtf8().data());  myCodeView->setPlainText(myViewer3dSamples->GetCode().ToCString());  myResultView->setPlainText(myViewer3dSamples->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessViewer2d(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  Standard_Boolean anIsFileSample = Viewer2dSamples::IsFileSample(theSampleName.toUtf8().data());  QString aFileName;  if (anIsFileSample)  {    int aMode = 0; // not used    aFileName = selectFileName(theSampleName, getOcafDialog(theSampleName), aMode);    if (aFileName.isEmpty())    {      return;    }    myViewer2dSamples->SetFileName(aFileName.toUtf8().data());  }  if (!anIsFileSample || (anIsFileSample && !aFileName.isEmpty()))  {    QApplication::setOverrideCursor(Qt::WaitCursor);    myViewer2dSamples->Process(theSampleName.toUtf8().data());    if (!Viewer2dSamples::IsShadedSample(theSampleName.toUtf8().data()))    {      myDocument2d->SetObjects(myViewer2dSamples->Get2dObjects(), Standard_False);    }    else    {      myDocument2d->SetObjects(myViewer2dSamples->Get2dObjects(), Standard_True);    }    myCodeView->setPlainText(myViewer2dSamples->GetCode().ToCString());    myResultView->setPlainText(myViewer2dSamples->GetResult().ToCString());    myGeomWidget->Show2d();    QApplication::restoreOverrideCursor();  }  else  {    myResultView->setPlainText("No file selected!");  }}QString ApplicationCommonWindow::selectFileName(const QString& theSampleName,                                                TranslateDialog* theDialog, int& theMode){  Q_UNUSED(theSampleName)  std::shared_ptr<TranslateDialog> aDialog(theDialog);  int ret = aDialog->exec();  theMode = aDialog->getMode();  qApp->processEvents();  QString aFilename;  QStringList aFileNameList;  if (ret != QDialog::Accepted)  {    return aFilename;  }  aFileNameList = aDialog->selectedFiles();  if (!aFileNameList.isEmpty())  {    aFilename = aFileNameList[0];  }  if (!QFileInfo(aFilename).completeSuffix().length())  {    QString selFilter = aDialog->selectedNameFilter();    int idx = selFilter.indexOf("(*.");    if (idx != -1)    {      QString tail = selFilter.mid(idx + 3);      idx = tail.indexOf(" ");      if (idx == -1)      {        idx = tail.indexOf(")");      }      QString ext = tail.left(idx);      if (ext.length())      {        aFilename += QString(".") + ext;      }    }  }  return aFilename;}TranslateDialog* ApplicationCommonWindow::getDataExchangeDialog(const QString& theSampleName){  TranslateDialog* aTranslateDialog = new TranslateDialog(this, 0, true);  TCollection_AsciiString aSampleName(theSampleName.toUtf8().data());  if (DataExchangeSamples::IsExportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Export file");    aTranslateDialog->setFileMode(QFileDialog::AnyFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptSave);  }  else if (DataExchangeSamples::IsImportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Import file");    aTranslateDialog->setFileMode(QFileDialog::ExistingFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptOpen);  }  QString aFormatFilter;  if (DataExchangeSamples::IsBrepSample(aSampleName))  {    aFormatFilter = "BREP Files(*.brep *.rle)";  }  else if (DataExchangeSamples::IsStepSample(aSampleName))  {    aFormatFilter = "STEP Files (*.stp *.step)";    aTranslateDialog->addMode(STEPControl_ManifoldSolidBrep, "Manifold Solid Brep");    aTranslateDialog->addMode(STEPControl_FacetedBrep, "Faceted Brep");    aTranslateDialog->addMode(STEPControl_ShellBasedSurfaceModel, "Shell Based Surface Model");    aTranslateDialog->addMode(STEPControl_GeometricCurveSet, "Geometric Curve Set");  }  else if (DataExchangeSamples::IsIgesSample(aSampleName))  {    aFormatFilter = "IGES Files (*.igs *.iges)";  }  else if (DataExchangeSamples::IsStlSample(aSampleName))  {    aFormatFilter = "STL Files (*.stl)";  }  else if (DataExchangeSamples::IsVrmlSample(aSampleName))  {    aFormatFilter = "VRML Files (*.vrml)";  }  else if (DataExchangeSamples::IsImageSample(aSampleName))  {    aFormatFilter = "All Image Files (*.bmp *.gif *.jpg *.jpeg *.png *.tga)";  }  QStringList aFilters;  aFilters.append(aFormatFilter);  aFilters.append("All Files(*.*)");  aTranslateDialog->setNameFilters(aFilters);  aTranslateDialog->clear();  return aTranslateDialog;}TranslateDialog* ApplicationCommonWindow::getOcafDialog(const QString& theSampleName){  TranslateDialog* aTranslateDialog = new TranslateDialog(this, 0, true);  TCollection_AsciiString aSampleName(theSampleName.toUtf8().data());  if (OcafSamples::IsExportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Export file");    aTranslateDialog->setFileMode(QFileDialog::AnyFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptSave);  }  else if (OcafSamples::IsImportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Import file");    aTranslateDialog->setFileMode(QFileDialog::ExistingFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptOpen);  }  QStringList aFilters;  if (OcafSamples::IsBinarySample(aSampleName))  {    aFilters.append("Binary OCAF Sample (*.cbf)");  }  if (OcafSamples::IsXmlSample(aSampleName))  {    aFilters.append("XML OCAF Sample (*.xml)");  }  aFilters.append("All Files(*.*)");  aTranslateDialog->setNameFilters(aFilters);  aTranslateDialog->clear();  return aTranslateDialog;}QMenu* ApplicationCommonWindow::MenuFromDomNode(QDomElement& theItemElement,                                                QWidget* theParent,                                                QSignalMapper* theMapper){  QString anItemName        = theItemElement.attribute("name");  QMenu* aMenu = new QMenu(anItemName, theParent);  QDomElement anChildItemElement = theItemElement.firstChildElement("MenuItem");  QDomElement anSampleElement    = theItemElement.firstChildElement("Sample");  while(anChildItemElement.isElement())  {    aMenu->addMenu(MenuFromDomNode(anChildItemElement, aMenu, theMapper));    anChildItemElement = anChildItemElement.nextSibling().toElement();  }  while(anSampleElement.isElement())  {    QString aSampleName     = anSampleElement.attribute("name");    QString aSampleFunction = anSampleElement.attribute("function");    QAction* anAction = aMenu->addAction(aSampleFunction);    anAction->setText(aSampleName);    theMapper->setMapping(anAction, aSampleFunction);    connect(anAction, SIGNAL(triggered()), theMapper, SLOT(map()));    anSampleElement = anSampleElement.nextSibling().toElement();  }  return aMenu;}void ApplicationCommonWindow::MenuFormXml(const QString& thePath,                                          QSignalMapper* theMapper,                                          QList<QMenu*>& theMunusList){  QDomDocument aDomDocument;  theMunusList.clear();  QFile aXmlFile(thePath);  QString anErrorMessage;  if (aXmlFile.error() != QFile::NoError)  {    anErrorMessage = aXmlFile.errorString();    Message::SendFail() << "QFile creating error: " << anErrorMessage.toUtf8().constData();    aXmlFile.close();    return;  }  if (!aXmlFile.open(QIODevice::ReadOnly | QIODevice::Text))  {    Message::SendFail() << "File " << thePath.toUtf8().constData() << " could not open";    if (aXmlFile.error() != QFile::NoError)    {      anErrorMessage = aXmlFile.errorString();      Message::SendFail() << "QFile opening error: " << anErrorMessage.toUtf8().constData();    }    aXmlFile.close();    return;  }  bool aNamespaceProcessing(false);  QString anErrorMsg;  int anErrorLine(0);  int anErrorColumn(0);  if (!aDomDocument.setContent(&aXmlFile, aNamespaceProcessing, &anErrorMsg, &anErrorLine, &anErrorColumn))  {    Message::SendFail() << "XML file parsing error: " <<  anErrorMsg.toStdString()                        << " at line: " << anErrorLine << " column: " << anErrorColumn;    aXmlFile.close();    return;  }  aXmlFile.close();  QDomElement aRootElement = aDomDocument.documentElement();  QDomElement anItemElement = aRootElement.firstChildElement("MenuItem");  while(!anItemElement.isNull())  {    theMunusList.push_back(MenuFromDomNode(anItemElement, this, theMapper));    anItemElement = anItemElement.nextSiblingElement("MenuItem");  }}

// Copyright (c) 2020 OPEN CASCADE SAS//// This file is part of the examples of the Open CASCADE Technology software library.//// Permission is hereby granted, free of charge, to any person obtaining a copy// of this software and associated documentation files (the "Software"), to deal// in the Software without restriction, including without limitation the rights// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell// copies of the Software, and to permit persons to whom the Software is// furnished to do so, subject to the following conditions://// The above copyright notice and this permission notice shall be included in all// copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE#include "ApplicationCommon.h"#include <Standard_WarningsDisable.hxx>#include <QApplication>#include <QDir>#include <QFile>#include <QFont>#include <QFrame>#include <QGroupBox>#include <QMap>#include <QMdiArea>#include <QMdiSubWindow>#include <QMenuBar>#include <QMessageBox>#include <QPair>#include <QSplitter>#include <QStatusBar>#include <QtGlobal>#include <QHBoxLayout>#include <QVBoxLayout>#include <QWidget>#include <QDomDocument>#include <QDomAttr>#include <Standard_WarningsRestore.hxx>#include <OpenGl_GraphicDriver.hxx>#include <OSD_Environment.hxx>#include <stdlib.h>#include <memory>ApplicationCommonWindow::ApplicationCommonWindow (ApplicationType theCategory): QMainWindow (nullptr),  myAppType(theCategory),  myStdToolBar (nullptr),  myViewBar (nullptr),  myCasCadeBar (nullptr),  myFilePopup (nullptr),  myCategoryPopup (nullptr){  ALL_CATEGORIES[AppType_Geometry] = "Geometry";  ALL_CATEGORIES[AppType_Topology] = "Topology";  ALL_CATEGORIES[AppType_Triangulation] = "Triangulation";  ALL_CATEGORIES[AppType_DataExchange] = "DataExchange";  ALL_CATEGORIES[AppType_Ocaf] = "OCAF";  ALL_CATEGORIES[AppType_Viewer3d] = "3D viewer";  ALL_CATEGORIES[AppType_Viewer2d] = "2D Viewer";  ALL_CATEGORIES[AppType_PengKai] = "PengKai";  mySampleMapper   = new QSignalMapper(this);  myExchangeMapper = new QSignalMapper(this);  myOcafMapper     = new QSignalMapper(this);  myViewer3dMapper = new QSignalMapper(this);  myViewer2dMapper = new QSignalMapper(this);  myCategoryMapper = new QSignalMapper(this);  connect(mySampleMapper,   SIGNAL(mapped(const QString &)), this, SLOT(onProcessSample(const QString &)));  connect(myExchangeMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessExchange(const QString &)));  connect(myOcafMapper,     SIGNAL(mapped(const QString &)), this, SLOT(onProcessOcaf(const QString &)));  connect(myViewer3dMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessViewer3d(const QString &)));  connect(myViewer2dMapper, SIGNAL(mapped(const QString &)), this, SLOT(onProcessViewer2d(const QString &)));  connect(myCategoryMapper, SIGNAL(mapped(const QString &)), this, SLOT(onChangeCategory(const QString &)));  setFocusPolicy(Qt::StrongFocus);  QFont aCodeViewFont;  aCodeViewFont.setFamily("Courier");  aCodeViewFont.setFixedPitch(true);  aCodeViewFont.setPointSize(10);  QGroupBox* aCodeFrame = new QGroupBox(tr("Sample code"));  QVBoxLayout* aCodeLayout = new QVBoxLayout(aCodeFrame);  aCodeLayout->setContentsMargins(3, 3, 3, 3);  myCodeView = new QTextEdit(aCodeFrame);  aCodeLayout->addWidget(myCodeView);  myCodeView->setDocumentTitle("Code");  myCodeView->setLineWrapMode(QTextEdit::NoWrap);  myCodeView->setReadOnly(true);  myCodeView->setFont(aCodeViewFont);  myCodeViewHighlighter = new OcctHighlighter(myCodeView->document());  QGroupBox* aResultFrame = new QGroupBox(tr("Output"));  QVBoxLayout* aResultLayout = new QVBoxLayout(aResultFrame);  aResultLayout->setContentsMargins(3, 3, 3, 3);  myResultView = new QTextEdit(aResultFrame);  aResultLayout->addWidget(myResultView);  myResultView->setDocumentTitle("Output");  myResultView->setReadOnly(true);  myResultView->setFont(aCodeViewFont);  QSplitter* aCodeResultSplitter = new QSplitter(Qt::Vertical);  aCodeResultSplitter->addWidget(aCodeFrame);  aCodeResultSplitter->addWidget(aResultFrame);  myDocument3d = createNewDocument();  myDocument2d = createNewDocument();  QFrame* aViewFrame = new QFrame;  aViewFrame->setFrameStyle(QFrame::Panel | QFrame::Sunken);  aViewFrame->setLineWidth(3);  QVBoxLayout* aViewLayout = new QVBoxLayout(aViewFrame);  aViewLayout->setContentsMargins(0, 0, 0, 0);  myGeomWidget = new GeomWidget(myDocument3d, myDocument2d, aViewFrame);  aViewLayout->addWidget(myGeomWidget);  myGeomWidget->setContentsMargins(0, 0, 0, 0);  QSplitter* aGeomTextSplitter = new QSplitter(Qt::Horizontal);  aGeomTextSplitter->addWidget(aViewFrame);  aGeomTextSplitter->addWidget(aCodeResultSplitter);  aGeomTextSplitter->setStretchFactor(0, 1);  aGeomTextSplitter->setStretchFactor(1, 1);  QList<int> aSizeList;  aSizeList.append(640);  aSizeList.append(640);  aGeomTextSplitter->setSizes(aSizeList);  setCentralWidget(aGeomTextSplitter);#include <Standard_WarningsDisable.hxx>  Q_INIT_RESOURCE(Samples);#include <Standard_WarningsRestore.hxx>  TCollection_AsciiString aSampleSourcePach = getSampleSourceDir();  myGeometrySamples      = new GeometrySamples(aSampleSourcePach,                                               myDocument3d->getContext());  myTopologySamples      = new TopologySamples(aSampleSourcePach,                                               myDocument3d->getContext());  myTriangulationSamples = new TriangulationSamples(aSampleSourcePach,                                                    myDocument3d->getContext());  myDataExchangeSamples  = new DataExchangeSamples(aSampleSourcePach,                                                   myGeomWidget->Get3dView(),                                                   myDocument3d->getContext());  myOcafSamples          = new OcafSamples(aSampleSourcePach,                                           myDocument3d->getViewer(),                                           myDocument3d->getContext());  myViewer3dSamples      = new Viewer3dSamples(aSampleSourcePach,                                               myGeomWidget->Get3dView(),                                               myDocument3d->getContext());  myViewer2dSamples      = new Viewer2dSamples(aSampleSourcePach,                                               myGeomWidget->Get2dView(),                                               myDocument2d->getViewer(),                                               myDocument2d->getContext());  myPengKaiSamples      = new PengKaiSamples(aSampleSourcePach,                                               myDocument3d->getContext());  MenuFormXml(":/menus/Geometry.xml",      mySampleMapper,   myGeometryMenus);  MenuFormXml(":/menus/Topology.xml",      mySampleMapper,   myTopologyMenus);  MenuFormXml(":/menus/Triangulation.xml", mySampleMapper,   myTriangulationMenus);  MenuFormXml(":/menus/DataExchange.xml",  myExchangeMapper, myDataExchangeMenus);  MenuFormXml(":/menus/Ocaf.xml",          myOcafMapper,     myOcafMenus);  MenuFormXml(":/menus/Viewer3d.xml",      myViewer3dMapper, myViewer3dMenus);  MenuFormXml(":/menus/Viewer2d.xml",      myViewer2dMapper, myViewer2dMenus);  MenuFormXml(":/menus/PengKai.xml",      mySampleMapper, myPengKaiMenus);  onChangeCategory(ALL_CATEGORIES[myAppType]);  resize(1280, 560);}void ApplicationCommonWindow::RebuildMenu(){  menuBar()->clear();  myStdActions[StdActions_FileQuit] = CreateAction("Quit", "CTRL+Q");  connect(myStdActions[StdActions_FileQuit], SIGNAL(triggered()), this, SLOT(onCloseAllWindows()));  myStdActions[StdActions_HelpAbout] = CreateAction("About", "F1", ":/icons/help.png");  connect(myStdActions[StdActions_HelpAbout], SIGNAL(triggered()), this, SLOT(onAbout()));  // populate a menu with all actions  myFilePopup = new QMenu(this);  myFilePopup = menuBar()->addMenu(tr("&File"));  myFilePopup->addAction(myStdActions[StdActions_FileQuit]);  myCategoryPopup = new QMenu(this);  myCategoryPopup = menuBar()->addMenu(tr("&Category"));  foreach (ApplicationType aCategory, ALL_CATEGORIES.keys())  {    QString aCategoryName = ALL_CATEGORIES.value(aCategory);    QAction* anAction = myCategoryPopup->addAction(aCategoryName);    anAction->setText(aCategoryName);    myCategoryMapper->setMapping(anAction, aCategoryName);    connect(anAction, SIGNAL(triggered()), myCategoryMapper, SLOT(map()));    myCategoryPopup->addAction(anAction);    myCategoryActions.insert(aCategory, anAction);  }  foreach (QMenu* aSampleMenu, GetCurrentMenus())  {    menuBar()->addMenu(aSampleMenu);  }  // add a help menu  QMenu* aHelp = new QMenu(this);  menuBar()->addSeparator();  aHelp = menuBar()->addMenu(tr("&Help"));  aHelp->addAction(myStdActions[StdActions_HelpAbout]);}Handle(BaseSample) ApplicationCommonWindow::GetCurrentSamples(){  switch (myAppType)  {    case AppType_Geometry:      return myGeometrySamples;    case AppType_Topology:      return myTopologySamples;    case AppType_Triangulation: return myTriangulationSamples;    case AppType_DataExchange:  return myDataExchangeSamples;    case AppType_Ocaf:          return myOcafSamples;    case AppType_Viewer2d:      return myViewer2dSamples;    case AppType_Viewer3d:      return myViewer3dSamples;    case AppType_PengKai:      return myPengKaiSamples;    case AppType_Unknown:      break;  }  throw QString("Unknown Application type");}const QList<QMenu*>& ApplicationCommonWindow::GetCurrentMenus(){  switch (myAppType)  {    case AppType_Geometry:      return myGeometryMenus;    case AppType_Topology:      return myTopologyMenus;    case AppType_Triangulation: return myTriangulationMenus;    case AppType_DataExchange:  return myDataExchangeMenus;    case AppType_Ocaf:          return myOcafMenus;    case AppType_Viewer2d:      return myViewer2dMenus;    case AppType_Viewer3d:      return myViewer3dMenus;    case AppType_PengKai:      return myPengKaiMenus;    case AppType_Unknown:      break;  }  throw QString("Unknown Application type");}DocumentCommon* ApplicationCommonWindow::createNewDocument(){  return new DocumentCommon(this);}void ApplicationCommonWindow::onChangeCategory(const QString& theCategory){  myAppType = ALL_CATEGORIES.key(theCategory);  setWindowTitle(ALL_CATEGORIES[myAppType]);  myOcafSamples->ClearExtra();  myViewer3dSamples->ClearExtra();  myViewer2dSamples->ClearExtra();  GetCurrentSamples()->Clear();  myDocument3d->Clear();  myDocument2d->Clear();  myCodeView->setPlainText("");  myResultView->setPlainText("");  GetCurrentSamples()->AppendCube();  myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());  myGeomWidget->FitAll();  RebuildMenu();  switch (myAppType)  {    case AppType_DataExchange:    {      myDataExchangeSamples->AppendBottle();      myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());      myGeomWidget->Show3d();      break;    }    case AppType_Ocaf:    {      onProcessOcaf("CreateOcafDocument");      myGeomWidget->Show3d();      break;    }    case AppType_Viewer2d:    {      myGeomWidget->Show2d();      break;    }    case AppType_Viewer3d:    {      myViewer3dSamples->AppendBottle();      myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());      myGeomWidget->Show3d();      break;    }    case AppType_Geometry:    case AppType_Topology:    case AppType_PengKai:    case AppType_Triangulation:    case AppType_Unknown:    {      break;    }  }}void ApplicationCommonWindow::onAbout(){  QMessageBox::information(this, tr("OCCT Overview"),    tr("Qt based application to study OpenCASCADE Technology"),    tr("Ok"), QString::null, QString::null, 0, 0);}TCollection_AsciiString ApplicationCommonWindow::getSampleSourceDir(){  TCollection_AsciiString aSampleSourceDir = OSD_Environment("CSF_OCCTOverviewSampleCodePath").Value();  if (aSampleSourceDir.IsEmpty())  {    TCollection_AsciiString aCasRoot = OSD_Environment("CASROOT").Value();    if (!aCasRoot.IsEmpty())    {      aSampleSourceDir = aCasRoot + "/samples/OCCTOverview/code";    }  }  return aSampleSourceDir;}QAction* ApplicationCommonWindow::CreateAction (const QString& theActionName,                                                const QString& theShortcut,                                                const QString& theIconName){  QAction* aAction(NULL);  if (theIconName.isEmpty())  {    aAction = new QAction(theActionName, this);  }  else  {    QPixmap aIcon = QPixmap(theIconName);    aAction = new QAction(aIcon, theActionName, this);  }  aAction->setToolTip(theActionName);  aAction->setStatusTip(theActionName);  aAction->setShortcut(theShortcut);  return aAction;}template <typename PointerToMemberFunction>QAction* ApplicationCommonWindow::CreateSample (PointerToMemberFunction theHandlerMethod,                                                const char* theActionName){  QAction* anAction = new QAction(QObject::tr(theActionName), this);  connect(anAction, SIGNAL(triggered()), this, SLOT(theHandlerMethod()));  return anAction;}void ApplicationCommonWindow::resizeEvent(QResizeEvent* e){  QMainWindow::resizeEvent(e);  statusBar()->setSizeGripEnabled(!isMaximized());}void ApplicationCommonWindow::onProcessSample(const QString& theSampleName){  QApplication::setOverrideCursor(Qt::WaitCursor);  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  GetCurrentSamples()->Process(theSampleName.toUtf8().data());  myDocument3d->SetObjects(GetCurrentSamples()->Get3dObjects());  myDocument2d->SetObjects(GetCurrentSamples()->Get2dObjects());  myCodeView->setPlainText(GetCurrentSamples()->GetCode().ToCString());  myResultView->setPlainText(GetCurrentSamples()->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessExchange(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  int aMode = 0;  QString aFileName = selectFileName(theSampleName, getDataExchangeDialog(theSampleName), aMode);  if (aFileName.isEmpty())  {    return;  }  QApplication::setOverrideCursor(Qt::WaitCursor);  myDataExchangeSamples->SetFileName(aFileName.toUtf8().data());  myDataExchangeSamples->SetStepType(static_cast<STEPControl_StepModelType>(aMode));  myDataExchangeSamples->Process(theSampleName.toUtf8().data());  myDocument3d->SetObjects(myDataExchangeSamples->Get3dObjects());  myDocument2d->SetObjects(myDataExchangeSamples->Get2dObjects());  myCodeView->setPlainText(myDataExchangeSamples->GetCode().ToCString());  myResultView->setPlainText(myDataExchangeSamples->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessOcaf(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  if (theSampleName.indexOf("Dialog") == 0)  {    int aMode = 0; // not used    QString aFileName = selectFileName(theSampleName, getOcafDialog(theSampleName), aMode);    if (aFileName.isEmpty())    {      return;    }    myOcafSamples->SetFileName(aFileName.toUtf8().data());  }  QApplication::setOverrideCursor(Qt::WaitCursor);  myOcafSamples->Process(theSampleName.toUtf8().data());  myDocument2d->SetObjects(myOcafSamples->Get2dObjects());  myCodeView->setPlainText(myOcafSamples->GetCode().ToCString());  myResultView->setPlainText(myOcafSamples->GetResult().ToCString());  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessViewer3d(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  QApplication::setOverrideCursor(Qt::WaitCursor);  myViewer3dSamples->Process(theSampleName.toUtf8().data());  myCodeView->setPlainText(myViewer3dSamples->GetCode().ToCString());  myResultView->setPlainText(myViewer3dSamples->GetResult().ToCString());  myGeomWidget->FitAll();  QApplication::restoreOverrideCursor();}void ApplicationCommonWindow::onProcessViewer2d(const QString& theSampleName){  setWindowTitle(ALL_CATEGORIES[myAppType] + " - " + theSampleName);  Standard_Boolean anIsFileSample = Viewer2dSamples::IsFileSample(theSampleName.toUtf8().data());  QString aFileName;  if (anIsFileSample)  {    int aMode = 0; // not used    aFileName = selectFileName(theSampleName, getOcafDialog(theSampleName), aMode);    if (aFileName.isEmpty())    {      return;    }    myViewer2dSamples->SetFileName(aFileName.toUtf8().data());  }  if (!anIsFileSample || (anIsFileSample && !aFileName.isEmpty()))  {    QApplication::setOverrideCursor(Qt::WaitCursor);    myViewer2dSamples->Process(theSampleName.toUtf8().data());    if (!Viewer2dSamples::IsShadedSample(theSampleName.toUtf8().data()))    {      myDocument2d->SetObjects(myViewer2dSamples->Get2dObjects(), Standard_False);    }    else    {      myDocument2d->SetObjects(myViewer2dSamples->Get2dObjects(), Standard_True);    }    myCodeView->setPlainText(myViewer2dSamples->GetCode().ToCString());    myResultView->setPlainText(myViewer2dSamples->GetResult().ToCString());    myGeomWidget->Show2d();    QApplication::restoreOverrideCursor();  }  else  {    myResultView->setPlainText("No file selected!");  }}QString ApplicationCommonWindow::selectFileName(const QString& theSampleName,                                                TranslateDialog* theDialog, int& theMode){  Q_UNUSED(theSampleName)  std::shared_ptr<TranslateDialog> aDialog(theDialog);  int ret = aDialog->exec();  theMode = aDialog->getMode();  qApp->processEvents();  QString aFilename;  QStringList aFileNameList;  if (ret != QDialog::Accepted)  {    return aFilename;  }  aFileNameList = aDialog->selectedFiles();  if (!aFileNameList.isEmpty())  {    aFilename = aFileNameList[0];  }  if (!QFileInfo(aFilename).completeSuffix().length())  {    QString selFilter = aDialog->selectedNameFilter();    int idx = selFilter.indexOf("(*.");    if (idx != -1)    {      QString tail = selFilter.mid(idx + 3);      idx = tail.indexOf(" ");      if (idx == -1)      {        idx = tail.indexOf(")");      }      QString ext = tail.left(idx);      if (ext.length())      {        aFilename += QString(".") + ext;      }    }  }  return aFilename;}TranslateDialog* ApplicationCommonWindow::getDataExchangeDialog(const QString& theSampleName){  TranslateDialog* aTranslateDialog = new TranslateDialog(this, 0, true);  TCollection_AsciiString aSampleName(theSampleName.toUtf8().data());  if (DataExchangeSamples::IsExportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Export file");    aTranslateDialog->setFileMode(QFileDialog::AnyFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptSave);  }  else if (DataExchangeSamples::IsImportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Import file");    aTranslateDialog->setFileMode(QFileDialog::ExistingFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptOpen);  }  QString aFormatFilter;  if (DataExchangeSamples::IsBrepSample(aSampleName))  {    aFormatFilter = "BREP Files(*.brep *.rle)";  }  else if (DataExchangeSamples::IsStepSample(aSampleName))  {    aFormatFilter = "STEP Files (*.stp *.step)";    aTranslateDialog->addMode(STEPControl_ManifoldSolidBrep, "Manifold Solid Brep");    aTranslateDialog->addMode(STEPControl_FacetedBrep, "Faceted Brep");    aTranslateDialog->addMode(STEPControl_ShellBasedSurfaceModel, "Shell Based Surface Model");    aTranslateDialog->addMode(STEPControl_GeometricCurveSet, "Geometric Curve Set");  }  else if (DataExchangeSamples::IsIgesSample(aSampleName))  {    aFormatFilter = "IGES Files (*.igs *.iges)";  }  else if (DataExchangeSamples::IsStlSample(aSampleName))  {    aFormatFilter = "STL Files (*.stl)";  }  else if (DataExchangeSamples::IsVrmlSample(aSampleName))  {    aFormatFilter = "VRML Files (*.vrml)";  }  else if (DataExchangeSamples::IsImageSample(aSampleName))  {    aFormatFilter = "All Image Files (*.bmp *.gif *.jpg *.jpeg *.png *.tga)";  }  QStringList aFilters;  aFilters.append(aFormatFilter);  aFilters.append("All Files(*.*)");  aTranslateDialog->setNameFilters(aFilters);  aTranslateDialog->clear();  return aTranslateDialog;}TranslateDialog* ApplicationCommonWindow::getOcafDialog(const QString& theSampleName){  TranslateDialog* aTranslateDialog = new TranslateDialog(this, 0, true);  TCollection_AsciiString aSampleName(theSampleName.toUtf8().data());  if (OcafSamples::IsExportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Export file");    aTranslateDialog->setFileMode(QFileDialog::AnyFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptSave);  }  else if (OcafSamples::IsImportSample(aSampleName))  {    aTranslateDialog->setWindowTitle("Import file");    aTranslateDialog->setFileMode(QFileDialog::ExistingFile);    aTranslateDialog->setAcceptMode(QFileDialog::AcceptOpen);  }  QStringList aFilters;  if (OcafSamples::IsBinarySample(aSampleName))  {    aFilters.append("Binary OCAF Sample (*.cbf)");  }  if (OcafSamples::IsXmlSample(aSampleName))  {    aFilters.append("XML OCAF Sample (*.xml)");  }  aFilters.append("All Files(*.*)");  aTranslateDialog->setNameFilters(aFilters);  aTranslateDialog->clear();  return aTranslateDialog;}QMenu* ApplicationCommonWindow::MenuFromDomNode(QDomElement& theItemElement,                                                QWidget* theParent,                                                QSignalMapper* theMapper){  QString anItemName        = theItemElement.attribute("name");  QMenu* aMenu = new QMenu(anItemName, theParent);  QDomElement anChildItemElement = theItemElement.firstChildElement("MenuItem");  QDomElement anSampleElement    = theItemElement.firstChildElement("Sample");  while(anChildItemElement.isElement())  {    aMenu->addMenu(MenuFromDomNode(anChildItemElement, aMenu, theMapper));    anChildItemElement = anChildItemElement.nextSibling().toElement();  }  while(anSampleElement.isElement())  {    QString aSampleName     = anSampleElement.attribute("name");    QString aSampleFunction = anSampleElement.attribute("function");    QAction* anAction = aMenu->addAction(aSampleFunction);    anAction->setText(aSampleName);    theMapper->setMapping(anAction, aSampleFunction);    connect(anAction, SIGNAL(triggered()), theMapper, SLOT(map()));    anSampleElement = anSampleElement.nextSibling().toElement();  }  return aMenu;}void ApplicationCommonWindow::MenuFormXml(const QString& thePath,                                          QSignalMapper* theMapper,                                          QList<QMenu*>& theMunusList){  QDomDocument aDomDocument;  theMunusList.clear();  QFile aXmlFile(thePath);  QString anErrorMessage;  if (aXmlFile.error() != QFile::NoError)  {    anErrorMessage = aXmlFile.errorString();    Message::SendFail() << "QFile creating error: " << anErrorMessage.toUtf8().constData();    aXmlFile.close();    return;  }  if (!aXmlFile.open(QIODevice::ReadOnly | QIODevice::Text))  {    Message::SendFail() << "File " << thePath.toUtf8().constData() << " could not open";    if (aXmlFile.error() != QFile::NoError)    {      anErrorMessage = aXmlFile.errorString();      Message::SendFail() << "QFile opening error: " << anErrorMessage.toUtf8().constData();    }    aXmlFile.close();    return;  }  bool aNamespaceProcessing(false);  QString anErrorMsg;  int anErrorLine(0);  int anErrorColumn(0);  if (!aDomDocument.setContent(&aXmlFile, aNamespaceProcessing, &anErrorMsg, &anErrorLine, &anErrorColumn))  {    Message::SendFail() << "XML file parsing error: " <<  anErrorMsg.toStdString()                        << " at line: " << anErrorLine << " column: " << anErrorColumn;    aXmlFile.close();    return;  }  aXmlFile.close();  QDomElement aRootElement = aDomDocument.documentElement();  QDomElement anItemElement = aRootElement.firstChildElement("MenuItem");  while(!anItemElement.isNull())  {    theMunusList.push_back(MenuFromDomNode(anItemElement, this, theMapper));    anItemElement = anItemElement.nextSiblingElement("MenuItem");  }}

第五处修改：重新使用前面cmake编译的方法进行编译，重新生成build，运行以后就可以看到自己添加的按钮了，点击按钮即可触发测试函数，后续就可以自己在测试函数中编写测试案例

5、总结

注意好以下几个关键点：

1、环境和软件以及源码提前准备好

2、Cmake编译的时候记得修改成自己文件路径所在位置

3、一般而言配置完以后运行成功就行，自定义测试需要修改的地方较多，不易操作