build system and module refactoring + simple histogram scratch (#20)

* scratch adding histogram to image views

Histograms should come from some sort of histogram service. This is
currently just a POC.

* custom logger implementation w/o spdlog

* missing cmake file

* fix tests

* use operator<< over direct stream exposure

* rm print header

* add threading test + refactor towards interface libraries

omits the need for =target_include_directories= calls /everywhere/

* rm print header

* rm constexpr

* templated thread_pool

* fix doxyfile

* default enable doc building

* czi reader refactor

* rm erroneous include expression

* clang-format

* single lib include with PUBLIC visibility

* compile imgui stdlib

* clang format

* documentation update

centralize `LogLevelToString` to `ILog.hpp`

update docs and examples

lib/app/CMakeLists.txt

@@ -1,45 +1,65 @@
+# Fetch implot
+include(implot)
+message(STATUS "IMPLOT sources at ${IMPLOT_DIR}")
+
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/app_resources_default.h.in
   ${CMAKE_BINARY_DIR}/app_resources_default.h @ONLY)
 
+set(IMPLOTSRC
+  "${IMPLOT_DIR}/implot.h"
+  "${IMPLOT_DIR}/implot_internal.h"
+  "${IMPLOT_DIR}/implot_items.cpp"
+  "${IMPLOT_DIR}/implot.cpp"
+  "${IMPLOT_DIR}/implot_demo.cpp"
+)
+
+set(IMGUISRC
+  "${imgui_DIR}/imgui.cpp"
+  "${imgui_DIR}/misc/cpp/imgui_stdlib.cpp"
+  "${imgui_DIR}/imgui_demo.cpp"
+  "${imgui_DIR}/imgui_draw.cpp"
+  "${imgui_DIR}/imgui_tables.cpp"
+  "${imgui_DIR}/imgui_widgets.cpp"
+  "${imgui_DIR}/backends/imgui_impl_opengl3.cpp"
+  "${imgui_DIR}/backends/imgui_impl_glfw.cpp")
+
 set(APPLIBSRC
-  AppGLFW.hpp
+  include/imgui_proxy.hpp
+  include/AppGLFW.hpp
+  include/DefaultApp.hpp
+  include/PixelariumGallery.hpp
   AppGLFW.cpp
-  DefaultApp.hpp
   DefaultApp.cpp
-  PixelariumGallery.hpp
-  PixelariumGallery.cpp
-  ${imgui_DIR}/imgui.cpp
-  ${imgui_DIR}/imgui_demo.cpp
-  ${imgui_DIR}/imgui_draw.cpp
-  ${imgui_DIR}/imgui_tables.cpp
-  ${imgui_DIR}/imgui_widgets.cpp
-  ${imgui_DIR}/backends/imgui_impl_opengl3.cpp
-  ${imgui_DIR}/backends/imgui_impl_glfw.cpp)
+  PixelariumGallery.cpp)
 
 set(RENDERSRC
-  rendering/RenderHelpers.hpp
+  rendering/include/RenderHelpers.hpp
+  rendering/include/RenderImageManager.hpp
+  rendering/include/CvMatRender.hpp
+  rendering/include/IPixelariumImageView.hpp
+  rendering/include/PixelariumImageViewDefault.hpp
+  rendering/include/PixelariumImageViewCzi.hpp
+  rendering/include/ImageViewFactory.hpp
   rendering/RenderHelpers.cpp
-  rendering/CvMatRender.hpp
   rendering/CvMatRender.cpp
-  rendering/RenderImageManager.hpp
-  rendering/RenderImageManager.cpp
-  rendering/IPixelariumImageView.hpp
   rendering/IPixelariumImageView.cpp
-  rendering/PixelariumImageViewDefault.hpp
+  rendering/RenderImageManager.cpp
   rendering/PixelariumImageViewDefault.cpp
-  rendering/PixelariumImageViewCzi.hpp
   rendering/PixelariumImageViewCzi.cpp
-  rendering/ImageViewFactory.hpp
   rendering/ImageViewFactory.cpp)
 
 set(APPLIBNAME pixelariumapplicationlib)
 
 add_library(${APPLIBNAME}
-  STATIC ${APPLIBSRC} ${RENDERSRC})
+  STATIC ${APPLIBSRC} ${IMGUISRC} ${IMPLOTSRC} ${RENDERSRC})
+
+add_library(pixelarium::lib::application_static ALIAS ${APPLIBNAME})
 
 target_link_libraries(${APPLIBNAME}
-  PRIVATE pixelariumutilslib
-  PRIVATE pixelariumimagelib)
+  PUBLIC
+  pixelarium::lib::utilities_static
+  pixelarium::lib::imaging_static
+  pixelarium::lib::resources_static)
 
 # This needs to be public to let the consumer know about it.
 if(WIN32)
@@ -59,10 +79,12 @@ if(APPLE)
 endif()
 
 target_include_directories(${APPLIBNAME}
+  INTERFACE
   PRIVATE ${CMAKE_BINARY_DIR}
-  PRIVATE ${PROJECT_SOURCE_DIR}/lib
-  PRIVATE ${PROJECT_SOURCE_DIR}/lib/imaging
-  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/rendering
+  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/rendering/include
+  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include
   PUBLIC ${pfd_DIR}
   PUBLIC ${imgui_DIR}
-  PUBLIC ${imgui_DIR}/backends)
+  PUBLIC ${imgui_DIR}/misc/cpp
+  PUBLIC ${imgui_DIR}/backends
+  ${IMPLOT_DIR})