Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Z/src/nglwidgets/CMakeLists.txt

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+PROJECT(nglwidgets)
+
+FIND_PACKAGE(PopplerQt5 REQUIRED)
+
+#
+# NGL Widgets library
+#
+SET(nglwidgets_SRCS
+    ngldialogbuttonbox.cpp
+    ngldialogbuttonbox.h
+    ngldialog.cpp
+    ngldialog.h
+    nglmainwindow.cpp
+    nglmainwindow.h
+    nglpdfdocument.cpp
+    nglpdfdocument.h
+    nglpdfpage.cpp
+    nglpdfpage.h
+    nglstandardbutton.cpp
+    nglstandardbutton.h
+    ngltreeitem.cpp
+    ngltreeitem.h
+    ngltreemodel.cpp
+    ngltreemodel.h
+    nglpdfwidget.cpp
+    nglpdfwidget.h
+    nglwidgets_export.h
+)
+
+NGL_WRAP_UI(nglwidgets_SRCS
+    nglpdfwidget.ui
+)
+
+# Collect big resource QRCs
+set(oxygen_SRCS nglresources.qrc)
+if(TARGET Qt6::Core)
+  # Use Qt6's CMake helper to generate resource sources so resources are available at runtime
+  qt_add_resources(RME_LIGHT_RCC rme_light_style.qrc)
+  list(APPEND oxygen_SRCS ${RME_LIGHT_RCC})
+else()
+  NGL_ADD_BIG_RESOURCES(oxygen_SRCS nglresources.qrc rme_light_style.qrc)
+endif()
+
+# SV: logView
+NGL_ADD_LIBRARY(WS AAR SV nglwidgets SHARED ${nglwidgets_SRCS} ${oxygen_SRCS})
+NGL_TARGET_INCLUDE_DIRECTORIES(nglwidgets
+  PRIVATE
+    ${POPPLER_QT5_INCLUDE_DIR}
+)
+NGL_TARGET_LINK_LIBRARIES(nglwidgets
+  PRIVATE
+    NGLLogger
+    ngltranslator
+    ngltools
+    ${POPPLER_QT5_LIBRARY}
+  PUBLIC
+    Qt5::Core
+    Qt5::Widgets
+)
+
+NGL_INSTALL_TARGET(nglwidgets)
+
+# Unit test for PDFWidget
+IF(BUILD_TESTING AND TARGET nglwidgets)
+  FIND_PACKAGE(Qt6 REQUIRED COMPONENTS Test Widgets)
+  ADD_EXECUTABLE(test_nglpdfwidget test_nglpdfwidget.cpp)
+  TARGET_LINK_LIBRARIES(test_nglpdfwidget PRIVATE nglwidgets Qt6::Test Qt6::Widgets)
+  ADD_TEST(NAME test_nglpdfwidget COMMAND $<TARGET_FILE:test_nglpdfwidget>)
+ENDIF()

qt6-after/qt6-migrated-legatus/Z/src/nglwidgets/icons/16x16/LICENSE

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+Icon theme
+
+Oxygen icon theme is dual licensed. You may copy it under the Creative Common
+Attribution-ShareAlike 3.0 License or the GNU Library General Public License.
+
+Creative Common Attribution-ShareAlike 3.0 License (short form):
+
+You are free:
+
+    * to Share — to copy, distribute and transmit the work
+    * to Remix — to adapt the work
+
+Under the following conditions:
+
+    * Attribution. You must attribute the work in the manner specified by the
+      author or licensor (but not in any way that suggests that they endorse
+      you or your use of the work).
+
+    * Share Alike. If you alter, transform, or build upon this work, you may
+      distribute the resulting work only under the same, similar or a
+      compatible license.
+
+See also http://creativecommons.org/licenses/by-sa/3.0/ and
+http://creativecommons.org/licenses/by-sa/3.0/legalcode