Add settings dialog, camera controls

src/cameraclient.cpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2021 - 2023 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <QNetworkReply>
+#include <QSettings>
+
+#include "settingsdata.hpp"
+#include "cameraclient.hpp"
+
+CameraClient::CameraClient(QObject *parent): QObject(parent) {
+	setBaseUrl();
+	m_pollTimer.start(1000);
+	connect(&m_pollTimer, &QTimer::timeout, this, &CameraClient::poll);
+	connect(m_pollingNam, &QNetworkAccessManager::finished, this, &CameraClient::handlePollResponse);
+}
+
+void CameraClient::setPreset(int preset) {
+	if (preset > -1) {
+		get(QString("/cgi-bin/ptzctrl.cgi?ptzcmd&poscall&%1").arg(preset));
+	}
+}
+
+void CameraClient::setBaseUrl() {
+	const auto [host, port] = getCameraConnectionData();
+	m_baseUrl = QString("http://%1:%2").arg(host, QString::number(port));
+}
+
+void CameraClient::get(QString const&urlExt) {
+	QUrl url(QString(m_baseUrl) + urlExt);
+	QNetworkRequest rqst(url);
+	auto reply = m_nam->get(rqst);
+	connect(reply, &QIODevice::readyRead, reply, &QObject::deleteLater);
+}
+
+void CameraClient::poll() {
+	QUrl url(QString(m_baseUrl) + "/cgi-bin/param.cgi?get_device_conf");
+	QNetworkRequest rqst(url);
+	m_pollingNam->get(rqst);
+}
+
+void CameraClient::handlePollResponse(QNetworkReply *reply) {
+	reply->deleteLater();
+	if (reply->error()) {
+		qDebug() << "CameraClient error response:" << reply->errorString();
+		emit pollFailed();
+		return;
+	}
+	emit pollUpdate();
+}