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samples/sample_imgui.cpp

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+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <imgui.h>
+
+#include <filament/Engine.h>
+#include <filament/View.h>
+#include <filament/Scene.h>
+
+#include "app/Config.h"
+#include "app/FilamentApp.h"
+
+int main(int argc, char* argv[]) {
+    bool showDemo = false;
+    bool showMetrics = false;
+    auto imgui = [&showDemo, &showMetrics] (filament::Engine*, filament::View*) {
+        // In ImGui, the window title is a unique identifier, so don't call this "ImGui Demo" to
+        // avoid colliding with ImGui::ShowDemoWindow().
+        ImGui::Begin("ImGui", nullptr, ImGuiWindowFlags_MenuBar);
+        if (ImGui::BeginMenuBar()) {
+            if (ImGui::BeginMenu("File")) {
+                if (ImGui::MenuItem("Close"))  {
+                    FilamentApp::get().close();
+                }
+                ImGui::EndMenu();
+            }
+            ImGui::EndMenuBar();
+        }
+        ImGui::Checkbox("Widgets", &showDemo);
+        ImGui::Checkbox("Metrics", &showMetrics);
+        if (showDemo) {
+            ImGui::ShowDemoWindow(&showDemo);
+        }
+        if (showMetrics) {
+            ImGui::ShowMetricsWindow(&showMetrics);
+        }
+        ImGui::End();
+    };
+    Config config;
+    config.backend = filament::Engine::Backend::VULKAN;
+    config.title = "ImGui Demo";
+    auto nop = [](filament::Engine*, filament::View*, filament::Scene*) {};
+    FilamentApp::get().run(config, nop, nop, imgui);
+}