1 files changed, 105 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp b/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp
new file mode 100644
index 0000000..4c876e1
--- /dev/null
+++ b/src/3rdparty/phonon/mmf/abstractaudioeffect.cpp
@@ -0,0 +1,105 @@
+/*  This file is part of the KDE project.
+
+Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+This library is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 2.1 or 3 of the License.
+
+This library 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include <AudioEffectBase.h>
+#include "mediaobject.h"
+
+#include "abstractaudioeffect.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace Phonon;
+using namespace Phonon::MMF;
+
+AbstractAudioEffect::AbstractAudioEffect(QObject *parent,
+                                         const QList<EffectParameter> &params) : MediaNode::MediaNode(parent)
+                                                                               , m_params(params)
+                                                                               , m_isApplied(false)
+{
+}
+
+bool AbstractAudioEffect::disconnectMediaNode(MediaNode *target)
+{
+    MediaNode::disconnectMediaNode(target);
+    m_effect.reset();
+    return true;
+}
+
+QList<EffectParameter> AbstractAudioEffect::parameters() const
+{
+    return m_params;
+}
+
+QVariant AbstractAudioEffect::parameterValue(const EffectParameter &queriedParam) const
+{
+    const QVariant &val = m_values.value(queriedParam.id());
+
+    if (val.isNull())
+        return queriedParam.defaultValue();
+    else
+        return val;
+}
+
+void AbstractAudioEffect::setParameterValue(const EffectParameter &param,
+                                            const QVariant &newValue)
+{
+    m_values.insert(param.id(), newValue);
+    parameterChanged(param.id(), newValue);
+}
+
+bool AbstractAudioEffect::activateBackwardsInChain(MediaNode *target)
+{
+    // TODO we need to walk forward too.
+    MediaNode *current = target;
+
+    while (current) {
+        MMF::MediaObject *const mo = qobject_cast<MMF::MediaObject *>(current);
+        if(!mo)
+            continue;
+
+        AudioPlayer *const ap = qobject_cast<AudioPlayer *>(mo->abstractPlayer());
+
+        if (ap) {
+            activateOn(ap->player());
+            // There might be stuff before the mediaobject, but
+            // that's undefined for us.
+            return true;
+        }
+        else
+            current = current->source();
+    }
+
+    return false;
+}
+
+bool AbstractAudioEffect::connectMediaNode(MediaNode *target)
+{
+    /**
+     * We first call this function, so source() and target()
+     * is properly set up.
+     */
+    MediaNode::connectMediaNode(target);
+
+    if (!m_isApplied && activateBackwardsInChain(target))
+        m_isApplied = true;
+
+    return true;
+}
+
+QT_END_NAMESPACE
+