example 'meshtastic': refactor connection part

2026-01-30 04:11:23 -08:00 · 2024-04-17 13:31:46 +02:00 · 2024-04-17 13:31:46 +02:00 · 013a75d3f5
commit 013a75d3f5
parent 679fca2d25
22 changed files with 432 additions and 285 deletions
--- a/examples/meshtastic/cpp/connection/connection.cpp
+++ b/examples/meshtastic/cpp/connection/connection.cpp
@ -0,0 +1,122 @@
+#include "connection.h"
+#include "ble/ble_meshtastic.h"
+#include "usb/usb_meshtastic.h"
+#include <QStandardPaths>
+#include <QFile>
+#include <QDataStream>
+
+#ifdef Q_OS_ANDROID
+  #include "../android_service/qtandroidservice_ro.h"
+  #if (QT_VERSION < 0x060000)
+    #include <QAndroidService>
+  #endif
+#endif
+
+#ifdef Q_OS_ANDROID
+Connection::Connection(QtAndroidService* service) {
+  // forward signal
+  connect(this, &Connection::sendSavedPackets, service, &QtAndroidService::sendSavedPackets);
+  ble = new BLE_ME(service, service->con);
+  usb = new USB_ME(service, service->con);
+}
+#else
+Connection::Connection() {
+  ble = new BLE_ME(this);
+  usb = new USB_ME(this);
+}
+#endif
+
+void Connection::setConnectionType(const QVariant& vType) {
+  QByteArray t = vType.toByteArray();
+  if (t == "USB") {
+    type = USB;
+  } else {
+    type = BLE;
+  }
+}
+
+void Connection::startDeviceDiscovery(const QVariant& vName) {
+  switch (type) {
+    case BLE:
+      usb->disconnect();
+      ble->startDeviceDiscovery(vName.toString());
+      break;
+    case USB:
+      ble->disconnect();
+      usb->connectToRadio();
+      break;
+  }
+}
+
+void Connection::stopDeviceDiscovery() {
+  ble->stopDeviceDiscovery();
+}
+
+void Connection::setDeviceFilter(const QVariant& vName) {
+  ble->setDeviceFilter(vName.toString());
+}
+
+void Connection::read2() {
+  ble->read();
+}
+
+void Connection::write2(const QVariant& vBytes) {
+  QByteArray bytes = vBytes.toByteArray();
+  switch (type) {
+    case BLE:
+      ble->write(bytes);
+      break;
+    case USB:
+      usb->write2(bytes);
+      break;
+  }
+}
+
+// background mode
+
+void Connection::setBackgroundMode(bool background) {
+#if (defined Q_OS_ANDROID) || (defined Q_OS_IOS)
+  backgroundMode = background;
+  qDebug() << "background mode:" << backgroundMode;
+  if (!backgroundMode) {
+    sendSavedBytes();
+  }
+#endif
+}
+
+static QString packetsFile() {
+  // choose already existing directory
+  QStandardPaths::StandardLocation location = QStandardPaths::AppDataLocation;
+#ifdef Q_OS_IOS
+  location = QStandardPaths::DocumentsLocation;
+#endif
+  return QStandardPaths::writableLocation(location) + QStringLiteral("/meshtastic-packets.bin");
+}
+
+void Connection::saveBytes(const QByteArray& packet) {
+  QFile file(packetsFile());
+  if (file.open(QIODevice::WriteOnly | QIODevice::Append)) {
+    QDataStream ds(&file);
+    ds << packet;
+    file.close();
+  }
+}
+
+void Connection::sendSavedBytes() {
+  QVariantList packets;
+  QString fileName(packetsFile());
+  QFile file(fileName);
+  if (file.open(QIODevice::ReadOnly)) {
+    QDataStream ds(&file);
+    while (!ds.atEnd()) {
+      QByteArray packet;
+      ds >> packet;
+      packets.append(packet);
+    }
+    file.close();
+    if (!packets.isEmpty()) {
+      Q_EMIT sendSavedPackets(QVariant(packets));
+      QFile::remove(fileName);
+    }
+  }
+}