FindosgWidget

Finds the osgWidget NodeKit from the OpenSceneGraph toolkit.

備註

In most cases, it's recommended to use the FindOpenSceneGraph module instead and list osgWidget as a component. This will automatically handle dependencies such as the OpenThreads and core osg libraries:

find_package(OpenSceneGraph COMPONENTS osgWidget)

This module is used internally by FindOpenSceneGraph to find the osgWidget NodeKit. It is not intended to be included directly during typical use of the find_package() command. However, it is available as a standalone module for advanced use cases where finer control over detection is needed. For example, to find the osgWidget explicitly or bypass automatic component detection:

find_package(osgWidget)

OpenSceneGraph and osgWidget headers are intended to be included in C++ project source code as:

example.cxx
#include <osg/PositionAttitudeTransform>
#include <osgWidget/Widget>
// ...

When working with the OpenSceneGraph toolkit, other libraries such as OpenGL may also be required.

結果變數

This module defines the following variables:

osgWidget_FOUND

Boolean indicating whether the osgWidget NodeKit of the OpenSceneGraph toolkit is found. For backward compatibility, the OSGWIDGET_FOUND variable is also set to the same value.

OSGWIDGET_LIBRARIES

The libraries needed to link against to use osgWidget.

OSGWIDGET_LIBRARY

A result variable that is set to the same value as the OSGWIDGET_LIBRARIES variable.

快取變數

The following cache variables may also be set:

OSGWIDGET_INCLUDE_DIR

The include directory containing headers needed to use osgWidget.

OSGWIDGET_LIBRARY_DEBUG

The path to the osgWidget debug library.

Hints

This module accepts the following variables:

OSGDIR

Environment variable that can be set to help locate the OpenSceneGraph toolkit, including its osgWidget NodeKit, when installed in a custom location. It should point to the OpenSceneGraph installation prefix used when it was configured, built, and installed: ./configure --prefix=$OSGDIR.

範例

Finding osgWidget explicitly with this module and creating an interface imported target that encapsulates its usage requirements for linking it to a project target:

find_package(osgWidget)

if(osgWidget_FOUND AND NOT TARGET osgWidget::osgWidget)
  add_library(osgWidget::osgWidget INTERFACE IMPORTED)
  set_target_properties(
    osgWidget::osgWidget
    PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${OSGWIDGET_INCLUDE_DIR}"
      INTERFACE_LINK_LIBRARIES "${OSGWIDGET_LIBRARIES}"
  )
endif()

target_link_libraries(example PRIVATE osgWidget::osgWidget)

另請參見