1 files changed, 134 insertions, 0 deletions
diff --git a/src/seekhelper.cpp b/src/seekhelper.cpp
new file mode 100644
index 0000000..eab7c1a
--- /dev/null
+++ b/src/seekhelper.cpp
@@ -0,0 +1,134 @@
+/***************************************************************************
+                          seekhelper.cpp  -  description
+                             -------------------
+    begin                : Sam Mai 10 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/seekhelper.h"
+
+#include <kdebug.h>
+
+SeekHelper::SeekHelper(ISeekRadio &parent)
+  : m_state(off),
+    m_parent(parent),
+    m_SoundStreamID(SoundStreamID::InvalidID)
+{
+}
+
+
+SeekHelper::~SeekHelper()
+{
+}
+
+
+bool SeekHelper::connectI   (Interface *i)
+{
+    bool a = IRadioDeviceClient::connectI(i);
+    bool b = ISoundStreamClient::connectI(i);
+    return a || b;
+}
+
+
+bool SeekHelper::disconnectI(Interface *i)
+{
+    bool a = IRadioDeviceClient::disconnectI(i);
+    bool b = ISoundStreamClient::disconnectI(i);
+    return a || b;
+}
+
+
+void SeekHelper::start(const SoundStreamID &id, direction_t dir)
+{
+    m_SoundStreamID = id;
+    if (m_state == off) {
+        getData();
+        m_state            = isGood() ? searchWorse : searchBest;
+        m_direction        = dir;
+
+        queryIsMuted(m_SoundStreamID, m_oldMute);
+        sendMute(m_SoundStreamID, true);
+
+        m_parent.notifySeekStarted(m_direction == up);
+
+        step();
+    }
+}
+
+
+void SeekHelper::stop ()
+{
+    if (m_state != off) {
+        m_state = off;
+        abort();
+        sendMute(m_SoundStreamID, m_oldMute);
+        m_parent.notifySeekStopped();
+        m_SoundStreamID = SoundStreamID::InvalidID;
+    }
+}
+
+
+void SeekHelper::finish ()
+{
+    if (m_state != off) {
+        applyBest();
+        const RadioStation &rs = queryCurrentStation();
+
+        stop();
+        m_parent.notifySeekFinished(rs, isGood());
+    }
+}
+
+
+void SeekHelper::step ()
+{
+    if (m_state == off)
+        return;
+
+    getData();
+
+    switch (m_state) {
+
+        case off : break;
+
+        case searchWorse :
+            if (isWorse())
+                m_state = searchBest;
+
+            if (! nextSeekStep()) {
+                stop();
+            }
+
+            break;
+
+        case searchBest :
+            if (isWorse() && bestFound()) {
+                finish();
+            } else {
+                if (isBetter() && isGood()) {
+                    rememberBest();
+                }
+                if (! nextSeekStep()) {
+                    if (isGood() && bestFound()) {
+                        finish();
+                    } else {
+                        stop();
+                    }
+                }
+            }
+            break;
+    }
+}
+
+
+