ImGui

Reviewed-on: #10
Co-authored-by: Romain BOULLARD <romain.boullard@protonmail.com>
Co-committed-by: Romain BOULLARD <romain.boullard@protonmail.com>

imgui/all/conanfile.py

@@ -0,0 +1,127 @@
+import os
+
+from conan import ConanFile
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout, CMakeDeps
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, replace_in_file
+from conan.tools.scm import Version
+
+required_conan_version = ">=1.53.0"
+
+
+class IMGUIConan(ConanFile):
+    name = "imgui"
+    description = "Bloat-free Immediate Mode Graphical User interface for C++ with minimal dependencies"
+    license = "MIT"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/ocornut/imgui"
+    topics = ("gui", "graphical", "bloat-free")
+    package_type = "library"
+
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "enable_test_engine": [True, False],
+        "with_sdl3_binding": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+        "enable_test_engine": False,
+        "with_sdl3_binding": False,
+    }
+
+    def requirements(self):
+        if self.options.get_safe("with_sdl3_binding"):
+            self.requires("sdl/[>3 <4]", transitive_headers=True)
+
+    def export_sources(self):
+        copy(self, "CMakeLists.txt", self.recipe_folder, self.export_sources_folder)
+        export_conandata_patches(self)
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+        if "testengine" not in self.conan_data["sources"][self.version]:
+            self.output.warning("No test engine found for this version, removing test engine option")
+            del self.options.enable_test_engine
+
+        # sdl3 bindings were introduced with 1.89.3
+        # 1.91.8 is the oldest version that supports the latest sdl headers
+        if Version(self.version) < "1.91.8":
+            del self.options.with_sdl3_binding
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version]["core"], strip_root=True)
+        if "testengine" in self.conan_data["sources"][self.version]:
+            get(self, **self.conan_data["sources"][self.version]["testengine"], strip_root=True, destination="test_engine")
+        self._patch_sources()
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["IMGUI_SRC_DIR"] = self.source_folder.replace("\\", "/")
+        tc.variables["IMGUI_WITH_SDL3_BINDING"] = self.options.get_safe("with_sdl3_binding", False)
+        # test engine is not available for all versions
+        if self.options.get_safe("enable_test_engine"):
+            tc.preprocessor_definitions["IMGUI_ENABLE_TEST_ENGINE"] = "1"
+            tc.preprocessor_definitions["IMGUI_TEST_ENGINE_ENABLE_COROUTINE_STDTHREAD_IMPL"] = "1"
+            tc.variables["IMGUI_ENABLE_TEST_ENGINE"] = "ON"
+            tc.variables["IMGUI_TEST_ENGINE_DIR"] = os.path.join(self.source_folder, "test_engine").replace("\\", "/")
+        tc.generate()
+
+        deps = CMakeDeps(self)
+        deps.generate()
+
+    def _patch_sources(self):
+        apply_conandata_patches(self)
+
+        # Ensure we take into account export_headers
+        replace_in_file(self,
+            os.path.join(self.source_folder, "imgui.h"),
+            "#ifdef IMGUI_USER_CONFIG",
+            "#include \"imgui_export_headers.h\"\n\n#ifdef IMGUI_USER_CONFIG"
+        )
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure(build_script_folder=os.path.join(self.source_folder, os.pardir))
+        cmake.build()
+
+    def package(self):
+        copy(self, pattern="LICENSE.txt", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
+        backends_folder = os.path.join(self.source_folder, "backends")
+        copy(self, pattern="imgui_impl_*",
+            dst=os.path.join(self.package_folder, "res", "bindings"),
+            src=backends_folder)
+        copy(self, pattern="imgui*.cpp",
+            dst=os.path.join(self.package_folder, "res", "src"),
+            src=os.path.join(self.source_folder))
+        copy(self, pattern="*.*",
+            dst=os.path.join(self.package_folder, "res", "misc", "cpp"),
+            src=os.path.join(self.source_folder, "misc", "cpp"))
+        copy(self, pattern="*.*",
+            dst=os.path.join(self.package_folder, "res", "misc", "freetype"),
+            src=os.path.join(self.source_folder, "misc", "freetype"))
+        cmake = CMake(self)
+        cmake.install()
+
+    def package_info(self):
+        _is_docking_branch = "docking" in str(self.version)
+        self.conf_info.define("user.imgui:with_docking", _is_docking_branch)
+        self.cpp_info.libs = ["imgui"]
+        if self.settings.os == "Linux":
+            self.cpp_info.system_libs.append("m")
+        if self.settings.os == "Windows":
+            self.cpp_info.system_libs.append("imm32")
+        self.cpp_info.srcdirs = [os.path.join("res", "bindings")]
+
+        bin_path = os.path.join(self.package_folder, "bin")
+        self.output.info("Appending PATH env var with : {}".format(bin_path))
+        self.env_info.PATH.append(bin_path)