/// <summary>
/// Check if file or folder exists
/// </summary>
/// <param name="socket">socket for executing command to brick</param>
/// <param name="brickPath">relative path to file or folder on brick</param>
/// <returns><c>true</c> if file or folder exists otherwise <c>false</c></returns>
/// <exception cref="ArgumentException"/>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="FirmwareException"/>
public static async Task <bool> Exists(ISocket socket, string brickPath)
{
brickPath.IsBrickPath();
Command cmd = null;
using (CommandBuilder cb = new CommandBuilder(CommandType.DIRECT_COMMAND_REPLY, 1, 0))
{
cb.OpCode(OP.opFILENAME);
cb.Raw((byte)FILENAME_SUBCODE.EXIST);
cb.PARS(brickPath);
cb.GlobalIndex(0);
cmd = cb.ToCommand();
}
Response response = await socket.Execute(cmd);
return(response.PayLoad[0] == 1);
}
//CMD: BMPFILE = 0x1C
//Arguments
//(DATA8) Color – Specify either black or white, [0: White, 1: Black]
//(Data16) X0 – Specify X start point, [0 - 177]
//(Data16) Y0 – Specify Y start point, [0 - 127]
//(Data8) NAME – First character in filename(Character string)
//Description
//Enable displaying BMP file from icon file within running project.
internal static async Task BMPFile(ISocket socket, string path, int x = 0, int y = 0, UIColor color = UIColor.Black)
{
Command cmd = null;
using (CommandBuilder cb = new CommandBuilder(CommandType.DIRECT_COMMAND_NO_REPLY))
{
cb.OpCode(OP.opUI_DRAW);
cb.Raw((byte)UI_DRAW_SUBCODE.BMPFILE);
cb.PAR8((int)color);
cb.PAR16(x);
cb.PAR16(y);
cb.PARS(path);
cb.OpCode(OP.opUI_DRAW);
cb.Raw((byte)UI_DRAW_SUBCODE.UPDATE);
cmd = cb.ToCommand();
}
await socket.Execute(cmd);
}
/// <summary>
/// Repeats playing a sound file on the brick at a given volume.
/// </summary>
/// <param name="socket">socket for executing command to brick</param>
/// <param name="volume">Specify volume for playback, [0 - 100]</param>
/// <param name="filePath">FilePath to sound file: ../prjs/myproject/file.rsf</param>
/// <remarks>
/// Instruction opSound (CMD, …)
/// Opcode 0x94
/// Arguments (Data8) CMD => Specific command parameter documented below
/// Dispatch status Unchanged
/// Description Sound control entry
/// CMD: REPEAT = 0x03
/// Arguments
/// (Data8) VOLUME – Specify volume for playback, [0 - 100]
/// (Data8) NAME – First character in filename (Character string)
/// </remarks>
internal static async Task Repeat(ISocket socket, int volume, string filePath)
{
if (volume < 0 || volume > 100)
{
throw new ArgumentOutOfRangeException("Volume must be between 0 and 100", "volume");
}
//soundfiles will not play when extension in path
filePath = Path.ChangeExtension(filePath, null);
Command cmd = null;
using (CommandBuilder cb = new CommandBuilder(CommandType.DIRECT_COMMAND_NO_REPLY))
{
cb.OpCode(OP.opSOUND);
cb.Raw((byte)SOUND_SUBCODE.REPEAT);
cb.PAR8(volume); // (Data8) VOLUME
cb.PARS(filePath); // (Data8) NAME – First character in filename (Character string) ?
cmd = cb.ToCommand();
}
await socket.Execute(cmd);
}
/// <summary>
/// Gets directoryinfo item count and total size
/// </summary>
/// <param name="socket">socket for executing command to brick</param>
/// <param name="brickDirectoryPath">relative path to folder on brick</param>
/// <returns>DirectoryInfo</returns>
/// <exception cref="ArgumentException"/>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="FirmwareException"/>
public static async Task <DirectoryInfo> GetDirectoryInfo(ISocket socket, string brickDirectoryPath)
{
brickDirectoryPath = FileSystem.ToBrickDirectoryPath(brickDirectoryPath);
brickDirectoryPath.IsBrickDirectoryPath();
Command cmd = null;
using (CommandBuilder cb = new CommandBuilder(CommandType.DIRECT_COMMAND_REPLY, 8, 0))
{
cb.OpCode(OP.opFILENAME);
cb.Raw((byte)FILENAME_SUBCODE.TOTALSIZE);
cb.PARS(brickDirectoryPath);
cb.GlobalIndex(0);
cb.GlobalIndex(4);
cmd = cb.ToCommand();
}
Response response = await socket.Execute(cmd);
byte[] data = response.PayLoad;
int items = BitConverter.ToInt32(data, 0);
int size = BitConverter.ToInt32(data, 4);
return(new DirectoryInfo(items, size));
}
