Added old abandoned KDE3 version of Kima

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kima@1088422 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 89 insertions, 0 deletions

diff --git a/src/sources/threadedtrigger.h b/src/sources/threadedtrigger.h
new file mode 100644
index 0000000..8d84d5f
--- /dev/null
+++ b/src/sources/threadedtrigger.h
@@ -0,0 +1,89 @@
+/***************************************************************************
+ *   Copyright (C) 2007 by Ken Werner                                      *
+ *   ken.werner@web.de                                                     *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
+ ***************************************************************************/
+
+#ifndef THREADEDTRIGGER_H
+#define THREADEDTRIGGER_H
+
+#include "source.h"
+#include "updateevent.h"
+#include "triggeredsource.h"
+#include <qwaitcondition.h>
+#include <qmutex.h>
+#include <qthread.h>
+#include <qevent.h>
+#include <qobject.h>
+
+/**
+ * ThreadedTrigger calls the fetchValue method of a source asynchronous using a thread
+ * @author Ken Werner
+ */
+class ThreadedTrigger : public QObject, QThread{
+	Q_OBJECT //macro which activates signals and slots (moc)
+public:
+	/**
+	 * Creates a new ThreadedTrigger
+	 */
+	ThreadedTrigger(TriggeredSource* inSource, unsigned long inRefreshSleep = 1000);
+	
+	virtual ~ThreadedTrigger();
+
+protected:
+	/**
+	 * fetches tcalls the fetchValue method periodically
+	 * and sends an UpdateEvent to the source
+	 */
+    virtual void run();
+
+protected slots:
+	/**
+	 * enables (starts the thread) or disables (stops the thread)
+	 * this method is called if mSource gets enabled or disabled
+	 */
+	void enable(bool inEnable);
+
+private:
+	/**
+	 * pointer to the TriggeredSource
+	 **/
+	 TriggeredSource* mSource;
+
+	/**
+	 * time in milli seconds between two value fetches
+	 */
+	unsigned long mRefreshSleep;
+
+    /**
+     * indicates whether this thread runs
+     */
+    bool mRunning;
+    
+    /*
+     * this is the condition, on which this thread sleeps 
+     * mRefreshSleep milliseconds.
+     */
+    QWaitCondition mWaitCond;
+
+    /*
+     * this mutex ensures that the thread always sleeps on the
+     * condition, if we signal it.
+     */
+    QMutex mWaitMutex;
+};
+#endif //THREADEDTRIGGER_H