VTK/Examples/Cxx/Qt/RenderWindowUISingleInheritance

Description

Using a QVTKWidget with the Qt Single Inheritance model

RenderWindowUISingleInheritanceDriver.cxx

#include <QApplication>
#include "RenderWindowUISingleInheritance.h"
 
int main( int argc, char** argv )
{
  // QT Stuff
  QApplication app( argc, argv );
 
  RenderWindowUISingleInheritance renderWindowUISingleInheritance;
  renderWindowUISingleInheritance.show();
 
  return app.exec();
}

RenderWindowUISingleInheritance.h

#ifndef RenderWindowUISingleInheritance_H
#define RenderWindowUISingleInheritance_H
 
#include <vtkSmartPointer.h>

#include <QMainWindow>
 
// Forward Qt class declarations
class Ui_RenderWindowUISingleInheritance;
 
class RenderWindowUISingleInheritance : public QMainWindow
{
  Q_OBJECT
public:
 
  // Constructor/Destructor
  RenderWindowUISingleInheritance(); 
  ~RenderWindowUISingleInheritance() {};
 
public slots:
 
  virtual void slotExit();

private:
 
  // Designer form
  Ui_RenderWindowUISingleInheritance *ui;
};
 
#endif

RenderWindowUISingleInheritance.cxx

#include "RenderWindowUISingleInheritance.h"

// This is included here because it is forward declared in
// RenderWindowUISingleInheritance.h
#include "ui_RenderWindowUISingleInheritance.h"

#include <vtkPolyDataMapper.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkSphereSource.h>
#include <vtkSmartPointer.h>
 
// Constructor
RenderWindowUISingleInheritance::RenderWindowUISingleInheritance() 
{
  this->ui = new Ui_RenderWindowUISingleInheritance;
  this->ui->setupUi(this);
 
  // Sphere
  vtkSmartPointer<vtkSphereSource> sphereSource = 
      vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->Update();
  vtkSmartPointer<vtkPolyDataMapper> sphereMapper =
      vtkSmartPointer<vtkPolyDataMapper>::New();
  sphereMapper->SetInputConnection(sphereSource->GetOutputPort());
  vtkSmartPointer<vtkActor> sphereActor = 
      vtkSmartPointer<vtkActor>::New();
  sphereActor->SetMapper(sphereMapper);
 
  // VTK Renderer
  vtkSmartPointer<vtkRenderer> renderer = 
      vtkSmartPointer<vtkRenderer>::New();
  renderer->AddActor(sphereActor);
 
  // VTK/Qt wedded
  this->ui->qvtkWidget->GetRenderWindow()->AddRenderer(renderer);
 
  // Set up action signals and slots
  connect(this->ui->actionExit, SIGNAL(triggered()), this, SLOT(slotExit()));
 
}
 
void RenderWindowUISingleInheritance::slotExit() 
{
  qApp->exit();
}

RenderWindowUISingleInheritance.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>RenderWindowUISingleInheritance</class>
 <widget class="QMainWindow" name="RenderWindowUISingleInheritance">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>541</width>
    <height>583</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>RenderWindowUISingleInheritance</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QVTKWidget" name="qvtkWidget">
    <property name="geometry">
     <rect>
      <x>10</x>
      <y>20</y>
      <width>511</width>
      <height>541</height>
     </rect>
    </property>
   </widget>
  </widget>
  <action name="actionOpenFile">
   <property name="enabled">
    <bool>true</bool>
   </property>
   <property name="text">
    <string>Open File...</string>
   </property>
  </action>
  <action name="actionExit">
   <property name="text">
    <string>Exit</string>
   </property>
  </action>
  <action name="actionPrint">
   <property name="text">
    <string>Print</string>
   </property>
  </action>
  <action name="actionHelp">
   <property name="text">
    <string>Help</string>
   </property>
  </action>
  <action name="actionSave">
   <property name="text">
    <string>Save</string>
   </property>
  </action>
 </widget>
 <customwidgets>
  <customwidget>
   <class>QVTKWidget</class>
   <extends>QWidget</extends>
   <header>QVTKWidget.h</header>
  </customwidget>
 </customwidgets>
 <resources>

 </resources>
 <connections/>
</ui>

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
if(POLICY CMP0020)
  cmake_policy(SET CMP0020 NEW)
endif()

PROJECT(RenderWindowUISingleInheritance)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

if(${VTK_VERSION} VERSION_GREATER "6" AND VTK_QT_VERSION VERSION_GREATER "4")
  # Instruct CMake to run moc automatically when needed.
  set(CMAKE_AUTOMOC ON)
  find_package(Qt5Widgets REQUIRED QUIET)
else()
  find_package(Qt4 REQUIRED)
  include(${QT_USE_FILE})
endif()

include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})

file(GLOB UI_FILES *.ui)
file(GLOB QT_WRAP *.h)
file(GLOB CXX_FILES *.cxx)

if(${VTK_VERSION} VERSION_GREATER "6" AND VTK_QT_VERSION VERSION_GREATER "4")
  qt5_wrap_ui(UISrcs ${UI_FILES} )
  # CMAKE_AUTOMOC in ON so the MOC headers will be automatically wrapped.
  add_executable(RenderWindowUISingleInheritance MACOSX_BUNDLE
    ${CXX_FILES} ${UISrcs} ${QT_WRAP})
  qt5_use_modules(RenderWindowUISingleInheritance Core Gui)
  target_link_libraries(RenderWindowUISingleInheritance ${VTK_LIBRARIES})
else()
  QT4_WRAP_UI(UISrcs ${UI_FILES})
  QT4_WRAP_CPP(MOCSrcs ${QT_WRAP})
  add_executable(RenderWindowUISingleInheritance MACOSX_BUNDLE ${CXX_FILES} ${UISrcs} ${MOCSrcs})

  if(VTK_LIBRARIES)
    if(${VTK_VERSION} VERSION_LESS "6")
      target_link_libraries(RenderWindowUISingleInheritance ${VTK_LIBRARIES} QVTK)
    else()
      target_link_libraries(RenderWindowUISingleInheritance ${VTK_LIBRARIES})
    endif()
  else()
    target_link_libraries(RenderWindowUISingleInheritance vtkHybrid QVTK vtkViews ${QT_LIBRARIES})
  endif()
endif()

Download and Build RenderWindowUISingleInheritance

Click here to download RenderWindowUISingleInheritance. and its CMakeLists.txt file.

Once the tarball RenderWindowUISingleInheritance.tar has been downloaded and extracted,

cd RenderWindowUISingleInheritance/build

This example requires Qt and VTK.

• If VTK and Qt are installed:

cmake ..

• If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

• If Qt is not found on your system, you will need to tell CMake where to find qmake:

cmake -DQT_QMAKE_EXECUTABLE:FILEPATH=/usr/something/qmake  ..

Build the project:

make

and run it:

./RenderWindowUISingleInheritance

WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time. You may also need to add a Qt related path.