1 //------------------------------------------------------------------------------ 2 // Copyright (c) 2001-2002, OpenBeOS 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 35 class EventMaskWatcher : public Watcher { 36 public: 37 EventMaskWatcher(const BMessenger &target, uint32 eventMask); 38 39 uint32 EventMask() const; 40 41 private: 42 uint32 fEventMask; 43 }; 44 45 // EventMaskWatcherFilter 46 class EventMaskWatcherFilter : public WatcherFilter { 47 public: 48 EventMaskWatcherFilter(uint32 event); 49 50 virtual bool Filter(Watcher *watcher, BMessage *message); 51 52 private: 53 uint32 fEvent; 54 }; 55 56 #endif // EVENT_MASK_WATCHER_H 57