1//------------------------------------------------------------------------------ 2// Copyright (c) 2001-2002, Haiku 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 shall be included in 12// all copies or substantial portions of the Software. 13// 14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20// DEALINGS IN THE SOFTWARE. 21// 22// File Name: EventMaskWatcher.h 23// Author: Ingo Weinhold (bonefish@users.sf.net) 24// Description: EventMaskWatcher is a Watcher extended by an event mask. 25// EventMaskWatcherFilter filters EventMaskWatchers with 26// respect to their event mask and a specific event. 27//------------------------------------------------------------------------------ 28 29#ifndef EVENT_MASK_WATCHER_H 30#define EVENT_MASK_WATCHER_H 31 32#include "Watcher.h" 33 34// EventMaskWatcher 35class EventMaskWatcher : public Watcher { 36public: 37 EventMaskWatcher(const BMessenger &target, uint32 eventMask); 38 39 uint32 EventMask() const; 40 41private: 42 uint32 fEventMask; 43}; 44 45// EventMaskWatcherFilter 46class EventMaskWatcherFilter : public WatcherFilter { 47public: 48 EventMaskWatcherFilter(uint32 event); 49 50 virtual bool Filter(Watcher *watcher, BMessage *message); 51 52private: 53 uint32 fEvent; 54}; 55 56#endif // EVENT_MASK_WATCHER_H 57