public void SelectDevice(DeviceInfo deviceInfo)
{
_currentDevice?.Dispose();
_deviceChannels.Clear();
ChannelListChanged?.Invoke(this, null);
_currentDevice = new Device(deviceInfo);
_currentDevice.Connect();
if (_currentDevice.ReadParam <DeviceState>(Parameter.State) != DeviceState.Connected)
{
_currentDevice.ParameterChanged += (sender, parameter) =>
{
if (parameter == Parameter.State)
{
if (_currentDevice.ReadParam <DeviceState>(Parameter.State) == DeviceState.Connected)
{
OnDeviceConnected();
}
}
};
}
else
{
OnDeviceConnected();
}
}
private void OnDeviceConnected()
{
var deviceChannels = _currentDevice.Channels;
foreach (var deviceChannel in deviceChannels)
{
if (deviceChannel.Type == ChannelType.Signal)
{
_deviceChannels.Add(new SignalChannel(_currentDevice, deviceChannel));
}
}
ChannelListChanged?.Invoke(this, null);
}
private CollectionService()
{
#if DEBUG
// 在调试状态下每次都清空收藏
if (_container.Values.ContainsKey(channelCollectionKey))
{
_container.Values[channelCollectionKey] = string.Empty;
}
if (_container.Values.ContainsKey(programCollectionKey))
{
_container.Values[programCollectionKey] = string.Empty;
}
#endif
// 建立频道收藏列表
if (!_container.Values.ContainsKey(channelCollectionKey))
{
_container.Values.Add(channelCollectionKey, string.Empty);
ChannelList = new ObservableCollection <Channel>();
}
else
{
ChannelList = new ObservableCollection <Channel>((_container.Values[channelCollectionKey] as string)
.Split(splitChar).Where(id => !string.IsNullOrWhiteSpace(id)).Select(id => Channel.GetChannel(id)));
}
ChannelList.CollectionChanged += SyncChannelList;
ChannelList.CollectionChanged += (sender, e) => ChannelListChanged?.Invoke(sender, e);
// 建立节目收藏列表
if (!_container.Values.ContainsKey(programCollectionKey))
{
_container.Values.Add(programCollectionKey, string.Empty);
ProgramList = new ObservableCollection <string>();
}
else
{
ProgramList = new ObservableCollection <string>((_container.Values[programCollectionKey] as string)
.Split(splitChar).Where(name => !string.IsNullOrWhiteSpace(name)));
}
ProgramList.CollectionChanged += SyncProgramList;
ProgramList.CollectionChanged += (sender, e) => ProgramListChanged?.Invoke(sender, e);
}
