[vcpkg] Use system installed imgui

Author: jslee02

.github/workflows/ci_windows.yml

@@ -47,7 +47,7 @@ jobs:
             bullet3
             freeglut
             glfw3
-            imgui
+            imgui[opengl2-binding]
             nlopt
             opengl
             osg
@@ -79,7 +79,7 @@ jobs:
             -DDART_MSVC_DEFAULT_OPTIONS=ON ^
             -DDART_VERBOSE=ON ^
             -DBUILD_SHARED_LIBS=${{ matrix.build_shared_libs }} ^
-            -DDART_USE_SYSTEM_IMGUI=OFF ^
+            -DDART_USE_SYSTEM_IMGUI=ON ^
             || exit /b
           cmake ^
             --build build ^

.github/workflows/publish_dartpy.yml

@@ -109,7 +109,7 @@ jobs:
             bullet3
             freeglut
             glfw3
-            imgui
+            imgui[opengl2-binding]
             nlopt
             opengl
             osg

setup.py

@@ -162,7 +162,10 @@ def build_extension(self, ext: CMakeExtension) -> None:
                 # CMake 3.12+ only.
                 build_args += [f"-j{self.parallel}"]
 
-        cmake_args += ["-DDART_USE_SYSTEM_IMGUI=OFF"]
+        if sys.platform.startswith("msvc"):
+            cmake_args += ["-DDART_USE_SYSTEM_IMGUI=ON"]
+        else:
+            cmake_args += ["-DDART_USE_SYSTEM_IMGUI=OFF"]
 
         build_temp = Path(self.build_temp) / ext.name
         if not build_temp.exists():