CMake: Add osgQtQuick_WITH_OSGQT option

Also add osgQt imported module

CMakeLists.txt

@@ -16,6 +16,9 @@ set(osgQtQuick_BUILD_DOCS OFF
 set(osgQtQuick_BUILD_DEBUGGER OFF
   CACHE BOOL "Set to ON to build debugger application (By default is OFF)")
 
+set(osgQtQuick_WITH_OSGQT ON
+  CACHE BOOL "Set to OFF to build without osgQt library support (By default is ON)")
+
 set(osgQtQuick_WITH_EARTH OFF
   CACHE BOOL "Set to ON to build with osgEarth library support (By default is OFF)")
 

src/CMakeLists.txt

@@ -10,14 +10,18 @@ list(APPEND CMAKE_MODULE_PATH "${osgQtQuick_ROOT_DIR}/cmake")
 # OpenSceneGraph
 find_package(OpenSceneGraph 3.0 REQUIRED
   osg
-  osgQt
   osgDB
   osgGA
   osgManipulator
   osgUtil
   osgViewer
   osgText)
 
+# osgQt
+if(osgQtQuick_WITH_OSGQT)
+  find_package(osgQt 3.0 REQUIRED)
+endif()
+
 # Qt
 if(osgQtQuick_WITH_QT_PRIVATE)
   find_package(Qt5Quick CONFIG REQUIRED

src/debugger/main.cpp

@@ -45,7 +45,9 @@ int main(int argc, char *argv[])
     osgText::registerQtQmlTypes("osgText");
     osgViewer::registerQtQmlTypes("osgViewer");
     osgViewer::registerQtQuickTypes("osgViewer");
+#if defined(OSGQTQUICK_WITH_OSGQT)
     osgQt::registerQtQmlTypes("osgQt");
+#endif
 #if defined(OSGQTQUICK_WITH_EARTH)
     osgEarth::Util::registerQtQmlTypes("osgEarthUtil");
 #endif

src/imports/CMakeLists.txt

@@ -5,6 +5,10 @@ add_subdirectory(osgmanipulator)
 add_subdirectory(osgtext)
 add_subdirectory(osgviewer)
 
+if(osgQtQuick_WITH_OSGQT)
+  add_subdirectory(osgqt)
+endif()
+
 if(osgQtQuick_WITH_EARTH)
   add_subdirectory(osgearthutil)
 endif()

src/imports/osgqt/CMakeLists.txt

@@ -0,0 +1,2 @@
+# Module configuration
+osgqtquick_imported_module("osgQt")

src/imports/osgqt/plugin.cpp

@@ -0,0 +1,19 @@
+#include <QtQml/QtQml>
+
+#include <osgQt/ModuleQtQml>
+
+class osgQtQtPlugin : public QQmlExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface")
+
+public:
+    void registerTypes(const char *uri)
+    {
+        Q_ASSERT(uri == QLatin1String("osgQt"));
+        // osgQt types from osgQtQml library
+        osgQt::registerQtQmlTypes(uri);
+    }
+};
+
+#include "plugin.moc"

src/qml/CMakeLists.txt

@@ -65,7 +65,9 @@ META_Node(osgText FontImplementation)
 META_Node(osgText TextBase)
 META_Node(osgText Text3D)
 
-META_Node(osgQt QFontImplementation)
+if(osgQtQuick_WITH_OSGQT)
+  META_Node(osgQt QFontImplementation)
+endif()
 
 META_Node(osgViewer CompositeViewer)
 
@@ -114,13 +116,17 @@ list(APPEND _srcs
   osgmanipulator/module.cpp
 # osgText
   osgtext/module.cpp
-# osgQt
-  osgqt/module.cpp
 # osgViewer
   osgviewer/compositeviewer.cpp
   osgviewer/module.cpp
 )
 
+if(osgQtQuick_WITH_OSGQT)
+  list(APPEND _srcs
+    # osgQt
+    osgqt/module.cpp)
+endif()
+
 if(osgQtQuick_WITH_EARTH)
   list(APPEND _moc_hdrs
     # osgEarthUtil
@@ -149,7 +155,6 @@ osgqtquick_library(osgQtQml)
 target_link_libraries(osgQtQml
   ${OPENTHREADS_LIBRARIES}
   ${OSG_LIBRARIES}
-  ${OSGQT_LIBRARIES}
   ${OSGDB_LIBRARIES}
   ${OSGGA_LIBRARIES}
   ${OSGMANIPULATOR_LIBRARIES}
@@ -159,6 +164,12 @@ target_link_libraries(osgQtQml
   Qt5::Gui
   Qt5::Qml)
 
+if(osgQtQuick_WITH_OSGQT)
+  target_link_libraries(osgQtQml ${OSGQT_LIBRARIES})
+  target_compile_definitions(osgQtQml
+    PUBLIC "OSGQTQUICK_WITH_OSGQT=1")
+endif()
+
 file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/include/osgQtQml")
 
 file(GENERATE OUTPUT "${CMAKE_BINARY_DIR}/include/osgQtQml/Export"