public InstanceTree LoadData(Stream stream)
{
InstanceTree tree = new InstanceTree();
StructInstance instance = new StructInstance(this, tree, stream, stream.Position);
tree.AddChild(instance);
return(tree);
}
public virtual int GetInstanceDataSize(StructCell cell, StructInstance instance)
{
int?cellSize = instance.GetCellSize(cell);
if (cellSize.HasValue)
{
return(cellSize.Value);
}
return(GetDataSize());
}
public StructInstance(StructDef def, InstanceTreeNode parent, Stream stream,
StructInstance followInstance, bool followChildren)
{
SequenceIndex = -1;
_def = def;
_parent = parent;
_stream = stream;
_followInstance = followInstance;
_followChildren = followChildren;
}
protected void LoadChildFields(BinaryReader reader, StructInstance instance)
{
foreach (StructField field in ChildFields)
{
if (!field.IsLinked)
{
field.LoadData(reader, instance);
}
}
}
public StructInstance(StructDef def, InstanceTreeNode parent, Stream stream,
StructInstance followInstance, bool followChildren)
{
SequenceIndex = -1;
_def = def;
_parent = parent;
_stream = stream;
_followInstance = followInstance;
_followChildren = followChildren;
}
public override Image Decode(Stream inputStream, StructInstance instance)
{
var metaInstance = (StructInstance) instance.Parent.Parent.Children[0].Children[0];
int width = metaInstance.EvaluateSymbol("SceneWidth").ToInt32(CultureInfo.CurrentCulture);
int height = metaInstance.EvaluateSymbol("SceneHeight").ToInt32(CultureInfo.CurrentCulture);
byte[] pixelData = new byte[width*height];
instance.Stream.Read(pixelData, 0, width*height);
Color[] palette = LoadPalette(metaInstance);
return CreateBitmapWithPalette(width, height, pixelData, palette);
}
private static Color[] LoadPalette(StructInstance instance)
{
var colorCount = instance.EvaluateSymbol("PaletteColors").ToInt32(CultureInfo.CurrentCulture);
instance.Stream.Seek(instance.Offset + 6, SeekOrigin.Begin);
var result = new Color[colorCount+4];
result[0] = Color.FromArgb(0, 0, 0);
result[1] = Color.FromArgb(0x54, 0x54, 0x54);
result[2] = Color.FromArgb(0xb4, 0xb4, 0xb4);
result[3] = Color.FromArgb(0xff, 0xff, 0xff);
for(int i=0; i<colorCount; i++)
{
int r = instance.Stream.ReadByte();
int g = instance.Stream.ReadByte();
int b = instance.Stream.ReadByte();
instance.Stream.Seek(3, SeekOrigin.Current);
result[i+4] = Color.FromArgb(r*4, g*4, b*4);
}
return result;
}
public InstanceTree LoadData(Stream stream)
{
InstanceTree tree = new InstanceTree();
StructInstance instance = new StructInstance(this, tree, stream, stream.Position);
tree.AddChild(instance);
return tree;
}
public DependencyTrackingContext(StructInstance instance, StructCell cell)
: base(instance)
{
_instance = instance;
_cell = cell;
}
public ExprCell(StructField def, StructInstance instance, Expression expression) : base(def)
{
_instance = instance;
_expression = expression;
}
public int GetDataSize(StructInstance instance)
{
return(_def.GetInstanceDataSize(this, instance));
}
protected void AddCell(StructInstance instance, IConvertible value, string displayValue, int offset)
{
instance.AddCell(new ValueCell(this, value, displayValue, offset), _hidden);
}
protected void AddCell(StructInstance instance, Expression expr)
{
instance.AddCell(new ExprCell(this, instance, expr), _hidden);
}
protected void AddCell(StructInstance instance, IConvertible value, string displayValue, int offset)
{
instance.AddCell(new ValueCell(this, value, displayValue, offset), _hidden);
}
public abstract void LoadData(BinaryReader reader, StructInstance instance);
protected void LoadChildFields(BinaryReader reader, StructInstance instance)
{
foreach (StructField field in ChildFields)
{
if (!field.IsLinked)
field.LoadData(reader, instance);
}
}
protected void AddCell(StructInstance instance, Expression expr)
{
instance.AddCell(new ExprCell(this, instance, expr), _hidden);
}
public void LoadInstanceData(StructInstance instance, Stream stream)
{
BinaryReader reader = new BinaryReader(stream);
foreach (StructField field in _fields)
{
if (field.IsLinked) continue;
try
{
field.LoadData(reader, instance);
}
catch(LoadDataException ex)
{
instance.AddCell(ValueCell.CreateErrorCell(field, ex.Message), false);
break;
}
catch(IOException ex)
{
instance.AddCell(ValueCell.CreateErrorCell(field, ex.Message), false);
break;
}
}
long offset = instance.GetLastRewindOffset();
if (offset != -1)
stream.Position = offset;
}
public abstract void LoadData(BinaryReader reader, StructInstance instance);
public virtual int GetInstanceDataSize(StructCell cell, StructInstance instance)
{
int? cellSize = instance.GetCellSize(cell);
if (cellSize.HasValue)
return cellSize.Value;
return GetDataSize();
}
public int GetDataSize(StructInstance instance)
{
return _def.GetInstanceDataSize(this, instance);
}
protected StructCell AddCell(StructInstance instance, IConvertible value, int offset)
{
StructCell cell = new ValueCell(this, value, offset);
instance.AddCell(cell, _hidden);
return cell;
}
