1*bb02e0acSNicolas Bonnefon /* 2*bb02e0acSNicolas Bonnefon * Copyright (C) 2010 Nicolas Bonnefon and other contributors 3*bb02e0acSNicolas Bonnefon * 4*bb02e0acSNicolas Bonnefon * This file is part of glogg. 5*bb02e0acSNicolas Bonnefon * 6*bb02e0acSNicolas Bonnefon * glogg is free software: you can redistribute it and/or modify 7*bb02e0acSNicolas Bonnefon * it under the terms of the GNU General Public License as published by 8*bb02e0acSNicolas Bonnefon * the Free Software Foundation, either version 3 of the License, or 9*bb02e0acSNicolas Bonnefon * (at your option) any later version. 10*bb02e0acSNicolas Bonnefon * 11*bb02e0acSNicolas Bonnefon * glogg is distributed in the hope that it will be useful, 12*bb02e0acSNicolas Bonnefon * but WITHOUT ANY WARRANTY; without even the implied warranty of 13*bb02e0acSNicolas Bonnefon * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*bb02e0acSNicolas Bonnefon * GNU General Public License for more details. 15*bb02e0acSNicolas Bonnefon * 16*bb02e0acSNicolas Bonnefon * You should have received a copy of the GNU General Public License 17*bb02e0acSNicolas Bonnefon * along with glogg. If not, see <http://www.gnu.org/licenses/>. 18*bb02e0acSNicolas Bonnefon */ 19*bb02e0acSNicolas Bonnefon 20*bb02e0acSNicolas Bonnefon #ifndef FILEWATCHER_H 21*bb02e0acSNicolas Bonnefon #define FILEWATCHER_H 22*bb02e0acSNicolas Bonnefon 23*bb02e0acSNicolas Bonnefon #include <QObject> 24*bb02e0acSNicolas Bonnefon #include <QFileSystemWatcher> 25*bb02e0acSNicolas Bonnefon 26*bb02e0acSNicolas Bonnefon // This class encapsulate Qt's QFileSystemWatcher and additionally support 27*bb02e0acSNicolas Bonnefon // watching a file that doesn't exist yet (the class will watch the owning 28*bb02e0acSNicolas Bonnefon // directory) 29*bb02e0acSNicolas Bonnefon // Only supports one file at the moment. 30*bb02e0acSNicolas Bonnefon class FileWatcher : public QObject { 31*bb02e0acSNicolas Bonnefon Q_OBJECT 32*bb02e0acSNicolas Bonnefon 33*bb02e0acSNicolas Bonnefon public: 34*bb02e0acSNicolas Bonnefon // Create an empty object 35*bb02e0acSNicolas Bonnefon FileWatcher(); 36*bb02e0acSNicolas Bonnefon // Destroy the object 37*bb02e0acSNicolas Bonnefon ~FileWatcher(); 38*bb02e0acSNicolas Bonnefon 39*bb02e0acSNicolas Bonnefon // Adds the file to the list of file to watch 40*bb02e0acSNicolas Bonnefon // (do nothing if a file is already monitored) 41*bb02e0acSNicolas Bonnefon void addFile( const QString& fileName ); 42*bb02e0acSNicolas Bonnefon // Removes the file to the list of file to watch 43*bb02e0acSNicolas Bonnefon // (do nothing if said file is not monitored) 44*bb02e0acSNicolas Bonnefon void removeFile( const QString& fileName ); 45*bb02e0acSNicolas Bonnefon 46*bb02e0acSNicolas Bonnefon signals: 47*bb02e0acSNicolas Bonnefon // Sent when the file on disk has changed in any way. 48*bb02e0acSNicolas Bonnefon void fileChanged( const QString& ); 49*bb02e0acSNicolas Bonnefon 50*bb02e0acSNicolas Bonnefon private slots: 51*bb02e0acSNicolas Bonnefon void fileChangedOnDisk( const QString& filename ); 52*bb02e0acSNicolas Bonnefon void directoryChangedOnDisk( const QString& filename ); 53*bb02e0acSNicolas Bonnefon 54*bb02e0acSNicolas Bonnefon private: 55*bb02e0acSNicolas Bonnefon enum MonitoringState { None, FileExists, FileRemoved }; 56*bb02e0acSNicolas Bonnefon 57*bb02e0acSNicolas Bonnefon QFileSystemWatcher qtFileWatcher_; 58*bb02e0acSNicolas Bonnefon QString fileMonitored_; 59*bb02e0acSNicolas Bonnefon MonitoringState monitoringState_; 60*bb02e0acSNicolas Bonnefon }; 61*bb02e0acSNicolas Bonnefon 62*bb02e0acSNicolas Bonnefon #endif 63