Added old KDE3 version of kradio

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kradio@1094417 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 142 insertions, 0 deletions

diff --git a/kradio3/src/frequencyseekhelper.cpp b/kradio3/src/frequencyseekhelper.cpp
new file mode 100644
index 0000000..670c300
--- /dev/null
+++ b/kradio3/src/frequencyseekhelper.cpp
@@ -0,0 +1,142 @@
+/***************************************************************************
+                          frequencyseekhelper.cpp  -  description
+                             -------------------
+    begin                : Fre Mai 9 2003
+    copyright            : (C) 2003 by Martin Witte
+    email                : witte@kawo1.rwth-aachen.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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "include/frequencyseekhelper.h"
+#include <qtimer.h>
+
+FrequencySeekHelper::FrequencySeekHelper(ISeekRadio &parent)
+  : SeekHelper(parent)
+{
+    m_timer = new QTimer(this);
+    QObject::connect (m_timer, SIGNAL(timeout()), this, SLOT(step()));
+}
+
+
+FrequencySeekHelper::~FrequencySeekHelper()
+{
+    delete m_timer;
+}
+
+
+bool FrequencySeekHelper::connectI   (Interface *i)
+{
+    bool a = SeekHelper::connectI(i);
+    bool b = IFrequencyRadioClient::connectI(i);
+    return a || b;
+}
+
+
+bool FrequencySeekHelper::disconnectI(Interface *i)
+{
+    bool a = SeekHelper::disconnectI(i);
+    bool b = IFrequencyRadioClient::disconnectI(i);
+    return a || b;
+}
+
+
+void FrequencySeekHelper::start(const SoundStreamID &id, direction_t dir)
+{
+    SeekHelper::start(id, dir);
+    m_bestFrequency = 0;
+}
+
+
+void FrequencySeekHelper::abort()
+{
+    m_timer->stop();
+    m_bestFrequency = 0;
+}
+
+
+bool FrequencySeekHelper::nextSeekStep()
+{
+    float f = queryFrequency();
+    f += (m_direction == up ? 1 : -1) * queryScanStep();
+
+    bool bounds = false;
+    if (f > queryMaxFrequency()) {
+        f = queryMaxFrequency();
+        bounds = true;
+    }
+    if (f < queryMinFrequency()) {
+        f = queryMinFrequency();
+        bounds = true;
+    }
+
+    if (sendFrequency(f) > 0) {
+        if (!bounds) {
+            m_timer->start (50, true);
+            return true;
+        } else {
+            return false;
+        }
+    } else {
+        return false;
+    }
+}
+
+
+bool FrequencySeekHelper::bestFound() const
+{
+    return m_bestFrequency > 0;
+}
+
+
+void FrequencySeekHelper::rememberBest()
+{
+    m_bestFrequency = m_currentFrequency;
+}
+
+
+void FrequencySeekHelper::getData()
+{
+    m_oldSignal        = m_currentSignal;
+    m_oldFrequency     = m_currentFrequency;
+
+    querySignalQuality(m_SoundStreamID, m_currentSignal);
+    queryHasGoodQuality(m_SoundStreamID, m_goodSignal);
+    m_currentFrequency = queryFrequency();
+}
+
+
+bool FrequencySeekHelper::isBetter() const
+{
+    return m_currentSignal > m_oldSignal;
+}
+
+
+bool FrequencySeekHelper::isWorse() const
+{
+    return m_currentSignal < m_oldSignal;
+}
+
+
+bool FrequencySeekHelper::isGood() const
+{
+    return m_goodSignal;
+}
+
+
+void FrequencySeekHelper::applyBest()
+{
+    sendFrequency( (m_bestFrequency + m_currentFrequency) / 2);
+}
+
+
+
+
+#include "frequencyseekhelper.moc"