wire up imgui

external/imgui/CMakeLists.txt

@@ -0,0 +1,48 @@
+cmake_minimum_required(VERSION 3.9 FATAL_ERROR)
+
+project(imgui C CXX)
+
+add_library(imgui
+	imgui/imgui.h
+	imgui/imgui.cpp
+	imgui/imgui_draw.cpp
+	imgui/imgui_widgets.cpp
+	imgui/imgui_tables.cpp
+	imgui/imgui_demo.cpp
+
+	imgui/imstb_rectpack.h
+	imgui/imstb_textedit.h
+	imgui/imstb_truetype.h
+
+	imgui/misc/cpp/imgui_stdlib.h
+	imgui/misc/cpp/imgui_stdlib.cpp
+)
+
+target_compile_features(imgui PUBLIC cxx_std_11)
+
+target_include_directories(imgui PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}")
+target_include_directories(imgui PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/imgui") # im sad
+
+#add_library(imgui_backend_opengl3
+	#"imgui/backends/imgui_impl_opengl3.h"
+	#"imgui/backends/imgui_impl_opengl3.cpp"
+#)
+#target_link_libraries(imgui_backend_opengl3 PUBLIC imgui)
+
+add_library(imgui_backend_sdlrenderer3
+	imgui/backends/imgui_impl_sdlrenderer3.h
+	imgui/backends/imgui_impl_sdlrenderer3.cpp
+)
+target_link_libraries(imgui_backend_sdlrenderer3 PUBLIC imgui SDL3::SDL3)
+
+#add_library(imgui_backend_glfw
+	#"imgui/backends/imgui_impl_glfw.h"
+	#"imgui/backends/imgui_impl_glfw.cpp"
+#)
+#target_link_libraries(imgui_backend_glfw PUBLIC imgui glfw)
+
+add_library(imgui_backend_sdl3
+	imgui/backends/imgui_impl_sdl3.h
+	imgui/backends/imgui_impl_sdl3.cpp
+)
+target_link_libraries(imgui_backend_sdl3 PUBLIC imgui SDL3::SDL3)