1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef GLFW_RENDER_CONTEXT_EXPORT_GLFW_RENDER_CONTEXT 17 #define GLFW_RENDER_CONTEXT_EXPORT_GLFW_RENDER_CONTEXT 18 19 #include <functional> 20 #include <memory> 21 #include <string> 22 23 struct GLFWwindow; 24 namespace OHOS::Rosen { 25 class GlfwRenderContext { 26 public: 27 using OnMouseButtonFunc = std::function<void(int button, bool pressed, int mods)>; 28 using OnCursorPosFunc = std::function<void(double x, double y)>; 29 using OnKeyFunc = std::function<void(int key, int scancode, int action, int mods)>; 30 using OnCharFunc = std::function<void(unsigned int codepoint)>; 31 32 // GlfwRenderContext isn't a singleton. 33 static std::shared_ptr<GlfwRenderContext> GetGlobal(); 34 35 /* before CreateWindow */ 36 int Init(); 37 void InitFrom(void *glfwWindow); 38 void Terminate(); 39 40 /* before window operation */ 41 int CreateGlfwWindow(int32_t width, int32_t height, bool visible); 42 void DestroyWindow(); 43 44 /* window operation */ 45 int WindowShouldClose(); 46 void WaitForEvents(); 47 void PollEvents(); 48 void GetWindowSize(int32_t &width, int32_t &height); 49 void SetWindowSize(int32_t width, int32_t height); 50 void SetWindowTitle(const std::string &title); 51 std::string GetClipboardData(); 52 void SetClipboardData(const std::string &data); 53 54 /* gl operation */ 55 void MakeCurrent(); 56 void SwapBuffers(); 57 58 /* input event */ 59 void OnMouseButton(const OnMouseButtonFunc &onMouseBotton); 60 void OnCursorPos(const OnCursorPosFunc &onCursorPos); 61 void OnKey(const OnKeyFunc &onKey); 62 void OnChar(const OnCharFunc &onChar); 63 64 private: 65 static void OnMouseButton(GLFWwindow *window, int button, int action, int mods); 66 static void OnCursorPos(GLFWwindow *window, double x, double y); 67 static void OnKey(GLFWwindow *window, int key, int scancode, int action, int mods); 68 static void OnChar(GLFWwindow *window, unsigned int codepoint); 69 static void OnSizeChanged(GLFWwindow *window, int32_t width, int32_t height); 70 71 static inline std::shared_ptr<GlfwRenderContext> global_ = nullptr; 72 bool external_ = false; 73 GLFWwindow *window_ = nullptr; 74 OnMouseButtonFunc onMouseBotton_ = nullptr; 75 OnCursorPosFunc onCursorPos_ = nullptr; 76 OnKeyFunc onKey_ = nullptr; 77 OnCharFunc onChar_ = nullptr; 78 79 int32_t width_ = 0; 80 int32_t height_ = 0; 81 }; 82 } // namespace OHOS::Rosen 83 84 #endif // GLFW_RENDER_CONTEXT_EXPORT_GLFW_RENDER_CONTEXT 85