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-rw-r--r--radio/CMakeLists.txt2
-rw-r--r--radio/radio.cpp245
-rw-r--r--radio/radio.h100
-rw-r--r--radio/radiomessage.cpp42
-rw-r--r--radio/radiomessage.h32
5 files changed, 421 insertions, 0 deletions
diff --git a/radio/CMakeLists.txt b/radio/CMakeLists.txt
new file mode 100644
index 0000000..46ac12b
--- /dev/null
+++ b/radio/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_headers(radio.h radiomessage.h)
+add_sources(radio.cpp radiomessage.cpp)
diff --git a/radio/radio.cpp b/radio/radio.cpp
new file mode 100644
index 0000000..2367b20
--- /dev/null
+++ b/radio/radio.cpp
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2018 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "message.h"
+#include "messageengine.h"
+#include "radio.h"
+#include "radiomessage.h"
+#include "responsemessage.h"
+
+Radio::Radio (QUrl &url, QQmlContext *context, QObject * parent) :
+ QObject(parent),
+ m_mloop(nullptr),
+ m_band(1),
+ m_frequency(0),
+ m_playing(false),
+ m_scanning(false)
+{
+ m_mloop = new MessageEngine(url);
+ m_context = context;
+
+ QObject::connect(m_mloop, &MessageEngine::connected, this, &Radio::onConnected);
+ QObject::connect(m_mloop, &MessageEngine::disconnected, this, &Radio::onDisconnected);
+ QObject::connect(m_mloop, &MessageEngine::messageReceived, this, &Radio::onMessageReceived);
+}
+
+Radio::~Radio()
+{
+ delete m_mloop;
+}
+
+void Radio::setBand(int band)
+{
+ RadioMessage *rmsg = new RadioMessage();
+ QJsonObject parameter;
+
+ parameter.insert("band", band ? "FM": "AM");
+ rmsg->createRequest("band", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+}
+
+void Radio::setFrequency(int frequency)
+{
+ RadioMessage *rmsg = new RadioMessage();
+ QJsonObject parameter;
+
+ if (m_scanning)
+ scanStop();
+
+ if (frequency == m_frequency)
+ return;
+
+ parameter.insert("value", QString::number(frequency));
+ rmsg->createRequest("frequency", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+
+ // To improve UI responsiveness, signal the change here immediately
+ // This fixes visual glitchiness in the slider caused by the frequency
+ // update event taking long enough that the QML engine gets a chance
+ // to update the slider with the current value before the event with
+ // the new value comes.
+ m_frequency = frequency;
+ emit frequencyChanged(m_frequency);
+}
+
+// control related methods
+
+void Radio::start()
+{
+ RadioMessage *rmsg = new RadioMessage();
+ QJsonObject parameter;
+
+ rmsg->createRequest("start", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+}
+
+void Radio::stop()
+{
+ RadioMessage *rmsg = new RadioMessage();
+
+ QJsonObject parameter;
+ rmsg->createRequest("stop", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+}
+
+void Radio::scanForward()
+{
+ if (m_scanning)
+ return;
+
+ RadioMessage *rmsg = new RadioMessage();
+ QJsonObject parameter;
+ parameter.insert("direction", "forward");
+ rmsg->createRequest("scan_start", parameter);
+ m_mloop->sendMessage(rmsg);
+
+ m_scanning = true;
+ emit scanningChanged(m_scanning);
+
+ delete rmsg;
+}
+
+void Radio::scanBackward()
+{
+ if (m_scanning)
+ return;
+
+ RadioMessage *rmsg = new RadioMessage();
+ QJsonObject parameter;
+ parameter.insert("direction", "backward");
+ rmsg->createRequest("scan_start", parameter);
+ m_mloop->sendMessage(rmsg);
+
+ m_scanning = true;
+ emit scanningChanged(m_scanning);
+
+ delete rmsg;
+}
+
+void Radio::scanStop()
+{
+ RadioMessage *rmsg = new RadioMessage();
+
+ QJsonObject parameter;
+ rmsg->createRequest("scan_stop", parameter);
+ m_mloop->sendMessage(rmsg);
+
+ m_scanning = false;
+ emit scanningChanged(m_scanning);
+
+ delete rmsg;
+}
+
+void Radio::updateFrequencyBandParameters()
+{
+ RadioMessage *rmsg = new RadioMessage();
+
+ QJsonObject parameter;
+ parameter.insert("band", m_band ? "FM" : "AM");
+ rmsg->createRequest("frequency_range", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+
+ rmsg = new RadioMessage();
+ rmsg->createRequest("frequency_step", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+}
+
+void Radio::onConnected()
+{
+ QStringListIterator eventIterator(events);
+ RadioMessage *rmsg;
+
+ while (eventIterator.hasNext()) {
+ rmsg = new RadioMessage();
+ QJsonObject parameter;
+ parameter.insert("value", eventIterator.next());
+ rmsg->createRequest("subscribe", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+ }
+
+ // Trigger initial update of frequency band parameters (min/max/step)
+ updateFrequencyBandParameters();
+}
+
+void Radio::onDisconnected()
+{
+ QStringListIterator eventIterator(events);
+ RadioMessage *rmsg;
+
+ while (eventIterator.hasNext()) {
+ rmsg = new RadioMessage();
+ QJsonObject parameter;
+ parameter.insert("value", eventIterator.next());
+ rmsg->createRequest("unsubscribe", parameter);
+ m_mloop->sendMessage(rmsg);
+ delete rmsg;
+ }
+}
+
+void Radio::onMessageReceived(MessageType type, Message *msg)
+{
+ if (msg->isEvent() && type == RadioEventMessage) {
+ RadioMessage *rmsg = qobject_cast<RadioMessage*>(msg);
+
+ if (rmsg->isFrequencyEvent()) {
+ unsigned int frequency = rmsg->eventData().value("value").toInt();
+ m_frequency = frequency;
+ if (!m_scanning && (m_frequency != frequency)) {
+ emit frequencyChanged(m_frequency);
+ }
+ } else if (rmsg->isStationFoundEvent()) {
+ m_scanning = false;
+ emit scanningChanged(m_scanning);
+
+ m_frequency = rmsg->eventData().value("value").toInt();
+ emit frequencyChanged(m_frequency);
+ } else if (rmsg->isStatusEvent()) {
+ if (rmsg->eventData().value("value") == QString("playing")) {
+ m_playing = true;
+ emit playingChanged(m_playing);
+ } else if (rmsg->eventData().value("value") == QString("stopped")) {
+ m_playing = false;
+ emit playingChanged(m_playing);
+ }
+ }
+ } else if (msg->isReply() && type == ResponseRequestMessage) {
+ ResponseMessage *rmsg = qobject_cast<ResponseMessage*>(msg);
+
+ if (rmsg->requestVerb() == "frequency_range") {
+ m_minFrequency = rmsg->replyData().value("min").toInt();
+ emit minFrequencyChanged(m_minFrequency);
+ m_maxFrequency = rmsg->replyData().value("max").toInt();
+ emit maxFrequencyChanged(m_maxFrequency);
+
+ // Handle start up
+ if (!m_frequency) {
+ m_frequency = m_minFrequency;
+ emit frequencyChanged(m_frequency);
+ }
+ } else if (rmsg->requestVerb() == "frequency_step") {
+ m_frequencyStep = rmsg->replyData().value("step").toInt();
+ emit frequencyStepChanged(m_frequencyStep);
+ }
+ }
+ msg->deleteLater();
+}
diff --git a/radio/radio.h b/radio/radio.h
new file mode 100644
index 0000000..642c58f
--- /dev/null
+++ b/radio/radio.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2018 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RADIO_H
+#define RADIO_H
+
+#include <QDebug>
+#include <QObject>
+
+#include <QtQml/QQmlContext>
+#include "messageengine.h"
+
+class Radio : public QObject
+{
+ Q_OBJECT
+ Q_PROPERTY(unsigned int band READ band WRITE setBand NOTIFY bandChanged)
+ Q_PROPERTY(unsigned int amBand READ amBand CONSTANT)
+ Q_PROPERTY(unsigned int fmBand READ fmBand CONSTANT)
+ Q_PROPERTY(unsigned int frequency READ frequency WRITE setFrequency NOTIFY frequencyChanged)
+ Q_PROPERTY(bool playing READ playing NOTIFY playingChanged)
+ Q_PROPERTY(bool scanning READ scanning NOTIFY scanningChanged)
+ Q_PROPERTY(unsigned int minFrequency READ minFrequency NOTIFY minFrequencyChanged)
+ Q_PROPERTY(unsigned int maxFrequency READ maxFrequency NOTIFY maxFrequencyChanged)
+ Q_PROPERTY(unsigned int frequencyStep READ frequencyStep NOTIFY frequencyStepChanged)
+
+ public:
+ explicit Radio(QUrl &url, QQmlContext *context, QObject * parent = Q_NULLPTR);
+ virtual ~Radio();
+
+ unsigned int band() const { return m_band; }
+ void setBand(int band);
+
+ unsigned int amBand() const { return 0; }
+ unsigned int fmBand() const { return 1; }
+
+ unsigned int frequency() const { return m_frequency; }
+ void setFrequency(int frequency);
+
+ unsigned int minFrequency() const { return m_minFrequency; }
+ unsigned int maxFrequency() const { return m_maxFrequency; }
+ unsigned int frequencyStep() const { return m_frequencyStep; }
+
+ bool playing() const { return m_playing; }
+
+ bool scanning() const { return m_scanning; }
+
+ // controls
+ Q_INVOKABLE void start();
+ Q_INVOKABLE void stop();
+ Q_INVOKABLE void scanForward();
+ Q_INVOKABLE void scanBackward();
+ Q_INVOKABLE void scanStop();
+
+ signals:
+ void bandChanged(int band);
+ void frequencyChanged(int frequency);
+ void playingChanged(bool status);
+ void scanningChanged(bool scanning);
+ void minFrequencyChanged(int minFrequency);
+ void maxFrequencyChanged(int maxFrequency);
+ void frequencyStepChanged(int frequencyStep);
+
+ private:
+ MessageEngine *m_mloop;
+ QQmlContext *m_context;
+
+ unsigned int m_band;
+ unsigned int m_frequency;
+ unsigned int m_minFrequency;
+ unsigned int m_maxFrequency;
+ unsigned int m_frequencyStep;
+ bool m_playing;
+ bool m_scanning;
+
+ void updateFrequencyBandParameters();
+ void onConnected();
+ void onDisconnected();
+ void onMessageReceived(MessageType type, Message *msg);
+
+ const QStringList events {
+ "frequency",
+ "station_found",
+ "status",
+ };
+};
+
+#endif // RADIO_H
diff --git a/radio/radiomessage.cpp b/radio/radiomessage.cpp
new file mode 100644
index 0000000..2a96a80
--- /dev/null
+++ b/radio/radiomessage.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2018 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <QDebug>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+
+#include "radiomessage.h"
+
+bool RadioMessage::createRequest(QString verb, QJsonObject parameter)
+{
+ QStringList verbs {"frequency",
+ "band",
+ "band_supported",
+ "frequency_range",
+ "frequency_step",
+ "start",
+ "stop",
+ "scan_start",
+ "scan_stop",
+ "stereo_mode",
+ "subscribe",
+ "unsubscribe" };
+ if (!verbs.contains(verb))
+ return false;
+
+ return Message::createRequest("radio", verb, parameter);
+}
diff --git a/radio/radiomessage.h b/radio/radiomessage.h
new file mode 100644
index 0000000..dc6e563
--- /dev/null
+++ b/radio/radiomessage.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2018 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RADIO_MESSAGE_H
+#define RADIO_MESSAGE_H
+
+#include "message.h"
+
+class RadioMessage : public Message
+{
+ Q_OBJECT
+ public:
+ bool isFrequencyEvent() { return (this->eventName() == "frequency"); };
+ bool isStationFoundEvent() { return (this->eventName() == "station_found"); };
+ bool isStatusEvent() { return (this->eventName() == "status"); };
+ bool createRequest(QString verb, QJsonObject parameter);
+};
+
+#endif // RADIO_MESSAGE_H