84 lines
3.1 KiB
C#
84 lines
3.1 KiB
C#
using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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using NLog;
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using Resources.Models;
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using WatchFace.Parser.Models;
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using Header = WatchFace.Parser.Models.Header;
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namespace WatchFace.Parser
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{
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public class Writer
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{
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private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
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private readonly List<IResource> _images;
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private readonly Stream _stream;
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public Writer(Stream stream, List<IResource> images)
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{
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_stream = stream;
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_images = images;
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}
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public void Write(IList<Parameter> descriptor)
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{
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Logger.Trace("Encoding parameters...");
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var encodedParameters = new Dictionary<byte, MemoryStream>(descriptor.Count);
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foreach (var parameter in descriptor)
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{
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Logger.Trace("Parameter: {0}", parameter.Id);
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var memoryStream = new MemoryStream();
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foreach (var child in parameter.Children)
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child.Write(memoryStream);
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encodedParameters[parameter.Id] = memoryStream;
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}
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Logger.Trace("Encoding offsets and lengths...");
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var parametersPositions = new List<Parameter>(descriptor.Count + 1);
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var offset = (long) 0;
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foreach (var encodedParameter in encodedParameters)
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{
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var encodedParameterId = encodedParameter.Key;
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var encodedParameterLength = encodedParameter.Value.Length;
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parametersPositions.Add(new Parameter(encodedParameterId, new List<Parameter>
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{
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new Parameter(1, offset),
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new Parameter(2, encodedParameterLength)
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}));
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offset += encodedParameterLength;
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}
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parametersPositions.Insert(0, new Parameter(1, new List<Parameter>
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{
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new Parameter(1, offset),
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new Parameter(2, _images.Count)
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}));
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var encodedParametersPositions = new MemoryStream();
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foreach (var parametersPosition in parametersPositions)
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parametersPosition.Write(encodedParametersPositions);
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Logger.Trace("Writing header...");
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var header = new Header
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{
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ParametersSize = (uint) encodedParametersPositions.Length,
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Unknown = 0x159 // Maybe some kind of layers (the bigger number needed for more complex watch faces)
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};
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header.WriteTo(_stream);
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Logger.Trace("Writing parameters offsets and lengths...");
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encodedParametersPositions.Seek(0, SeekOrigin.Begin);
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encodedParametersPositions.WriteTo(_stream);
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Logger.Trace("Writing parameters...");
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foreach (var encodedParameter in encodedParameters)
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{
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var stream = encodedParameter.Value;
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stream.Seek(0, SeekOrigin.Begin);
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stream.WriteTo(_stream);
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}
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Logger.Trace("Writing images...");
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new Resources.Writer(_stream).Write(_images);
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}
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}
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} |