1 /**************************************************************************** 2 * Copyright (C) 2016 Intel Corporation. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * @file archrast.h 24 * 25 * @brief Definitions for the event manager. 26 * 27 ******************************************************************************/ 28 #pragma once 29 30 #include "common/os.h" 31 32 #include "gen_ar_event.hpp" 33 #include "gen_ar_eventhandler.hpp" 34 35 #include <vector> 36 37 namespace ArchRast 38 { 39 ////////////////////////////////////////////////////////////////////////// 40 /// EventManager - interface to dispatch events to handlers. 41 /// Event handling occurs only on a single thread. 42 ////////////////////////////////////////////////////////////////////////// 43 class EventManager 44 { 45 public: EventManager()46 EventManager() {} 47 ~EventManager()48 ~EventManager() 49 { 50 // Event manager owns destroying handler objects once attached. 51 ///@note See comment for Detach. 52 for (auto pHandler : mHandlers) 53 { 54 delete pHandler; 55 } 56 } 57 Attach(EventHandler * pHandler)58 void Attach(EventHandler* pHandler) 59 { 60 SWR_ASSERT(pHandler != nullptr); 61 mHandlers.push_back(pHandler); 62 } 63 Dispatch(const Event & event)64 void Dispatch(const Event& event) 65 { 66 ///@todo Add event filter check here. 67 68 for (auto pHandler : mHandlers) 69 { 70 event.Accept(pHandler); 71 } 72 } 73 FlushDraw(uint32_t drawId)74 void FlushDraw(uint32_t drawId) 75 { 76 for (auto pHandler : mHandlers) 77 { 78 pHandler->FlushDraw(drawId); 79 } 80 } 81 82 private: 83 // Handlers stay registered for life Detach(EventHandler * pHandler)84 void Detach(EventHandler* pHandler) { SWR_INVALID("Should not be called"); } 85 86 std::vector<EventHandler*> mHandlers; 87 }; 88 }; // namespace ArchRast 89