add ImGuiTestEngine static library

cmake/imgui.cmake

@@ -21,6 +21,14 @@ target_include_directories(ImGuiColorTextEdit PUBLIC ${IMGUI_PATH})
 target_compile_definitions(ImGuiColorTextEdit PUBLIC 
   IMGUI_IMPL_OPENGL_LOADER_CUSTOM=<SDL2/SDL_opengl.h>  GL_GLEXT_PROTOTYPES=1)
 
+set(IMGUI_TEST_ENGINE_PATH ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine/imgui_test_engine)
+file(GLOB IMGUI_TEST_ENGINE_SOURCES ${IMGUI_TEST_ENGINE_PATH}/*.cpp)
+add_library("ImGuiTestEngine" STATIC ${IMGUI_TEST_ENGINE_SOURCES})
+target_include_directories(ImGuiTestEngine PUBLIC ${IMGUI_PATH})
+target_link_libraries(ImGuiTestEngine PUBLIC ImGui)
+target_compile_definitions(ImGuiTestEngine PUBLIC 
+  IMGUI_IMPL_OPENGL_LOADER_CUSTOM=<SDL2/SDL_opengl.h>  GL_GLEXT_PROTOTYPES=1)
+
 set(
   IMGUI_SRC
   ${IMGUI_PATH}/imgui.cpp 
@@ -32,4 +40,5 @@ set(
   ${IMGUI_PATH}/misc/cpp/imgui_stdlib.cpp
   ${IMGUI_FILE_DLG_PATH}/ImGuiFileDialog.cpp
   ${IMGUI_COLOR_TEXT_EDIT_PATH}/TextEditor.cpp
+  ${IMGUI_TEST_ENGINE_SOURCES}
 )

src/app/CMakeLists.txt

@@ -19,6 +19,7 @@ target_include_directories(
   lib/
   app/
   ${CMAKE_SOURCE_DIR}/src/
+  ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine
   ${PNG_INCLUDE_DIRS}
   ${SDL2_INCLUDE_DIR}
 )
@@ -29,6 +30,7 @@ target_link_libraries(
   ${SDL_TARGETS}
   ${PNG_LIBRARIES}
   ${CMAKE_DL_LIBS}
+  ImGuiTestEngine
   ImGui
 )
 

src/app/core/controller.h

@@ -6,6 +6,7 @@
 #include <imgui/backends/imgui_impl_sdlrenderer2.h>
 #include <imgui/imgui.h>
 #include <imgui/imgui_internal.h>
+#include <imgui/imconfig.h>
 
 #include <memory>
 

src/test/CMakeLists.txt

@@ -57,6 +57,7 @@ target_link_libraries(
   ${GLEW_LIBRARIES}
   ${OPENGL_LIBRARIES}
   ${CMAKE_DL_LIBS}
+  ImGuiTestEngine
   ImGui
   gmock_main
   gmock