1 /* 2 * Copyright (c) 2020-2021 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 /** 17 * @addtogroup UI_Events 18 * @{ 19 * 20 * @brief Defines UI events, such as press, click and drag events. 21 * 22 * @since 1.0 23 * @version 1.0 24 */ 25 26 /** 27 * @file cancel_event.h 28 * 29 * @brief Declares a cancel event, which usually occurs when the target view changes due to user sliding. For example, 30 this event is triggered if you, after pressing a button, does not release the button but slides. 31 * 32 * @since 1.0 33 * @version 1.0 34 */ 35 36 #ifndef GRAPHIC_LITE_CANCEL_EVENT_H 37 #define GRAPHIC_LITE_CANCEL_EVENT_H 38 39 #include "event.h" 40 41 namespace OHOS { 42 /** 43 * @brief Defines a cancel event, which usually occurs when the target view changes due to user sliding. For example, 44 this event is triggered if you, after pressing a button, does not release the button but slides. 45 * @since 1.0 46 * @version 1.0 47 */ 48 class CancelEvent : public Event { 49 public: 50 /** 51 * @brief A constructor used to create a <b>CancelEvent</b> instance. 52 * @param pos Indicates the position where the cancel event occurs. 53 * @since 1.0 54 * @version 1.0 55 */ CancelEvent(const Point & pos)56 CancelEvent(const Point& pos) : Event(pos) {} 57 58 /** 59 * @brief A destructor used to delete the <b>CancelEvent</b> instance. 60 * @since 1.0 61 * @version 1.0 62 */ ~CancelEvent()63 virtual ~CancelEvent() {} 64 }; 65 } // namespace OHOS 66 #endif // GRAPHIC_LITE_CANCEL_EVENT_H 67