QVTKOpenGLWidget使用问题记录

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problem 1

QVTKOpenGLWidget requires a vtkGenericOpenGLRenderWindow.
vtkCocoaRenderWindow is not supported.

QVTKOpenGLWidget 对应使用的renderWindow是 vtkGenericOpenGLRenderWindow

problem 2

VTK is designed to work with OpenGL version 3.2 but it appears it has been given a context that does not support 3.2. VTK will run in a compatibility mode designed to work with earlier versions of OpenGL but some features may not work.

需要设置surfaceFormat

    // needed to ensure appropriate OpenGL context is created for VTK rendering.
    QSurfaceFormat::setDefaultFormat(QVTKOpenGLWidget::defaultFormat());

problem 3

cmake设置应用图标
启动前的app图标设置:

# NOTE: Don't include the path in MACOSX_BUNDLE_ICON_FILE -- this is
# the property added to Info.plist
# <key>CFBundleIconFile</key>
# <string>logo</string>
set(MACOSX_BUNDLE_ICON_FILE logo)

# And this part tells CMake where to find and install the file itself
set(myApp_ICON ${CMAKE_CURRENT_SOURCE_DIR}/Images/logo.icns)
# set_source_files_properties would create Resources folder to store icns
# The folder is at same path where Info.plist located
set_source_files_properties(${myApp_ICON} PROPERTIES
     MACOSX_PACKAGE_LOCATION "Resources")

add_executable(
    ${PROJECT_NAME}
    MACOSX_BUNDLE
    ${SourceFiles}
    ${HeaderFiles}
    ${ResourceFiles}
    ${UISrcs}
    ${myApp_ICON} # Add icon file to see in IDE.
    )

程序运行中的图标设置：

    QApplication a(argc, argv);
    OpenFileDialog::getInstance()->show();
#ifdef Q_OS_MAC
    QString iconPath = QCoreApplication::applicationDirPath();
    iconPath = iconPath + "/Images/logo.icns";
    a.setWindowIcon( QIcon( iconPath ) );
#elif Q_OS_WIN

#endif

problem 4

如何在ui文件中添加QVtkOpenGLWidget ？
在ui文件的文本编辑模式下增添如下代码：

</widget>
<customwidgets>
 <customwidget>
  <class>QVTKOpenGLWidget</class>
  <extends>QWidget</extends>
  <header>QVTKOpenGLWidget.h</header>
 </customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

再增添

<item>
  <widget class="QVTKOpenGLWidget" name="qvtkWidget"/>
</item>

到widget 标签块中。