private void InstanceToJson(StringBuilder sb, IInstance inst)
{
// [id,[x,y],[scaleX, scaleY, rotation*, skew*], "name"]
sb.Append("[");
sb.Append(inst.DefinitionId + ",");
sb.Append(inst.InstanceHash + ",");
Vex.Matrix m = inst.GetTransformAtTime(0).Matrix;
sb.Append("[" + m.Location.GetSVG() + "]");
if (m.HasScaleOrRotation())
{
Vex.MatrixComponents mc = m.GetMatrixComponents();
sb.Append(",[" + mc.ScaleX + "," + mc.ScaleY);
if (mc.Rotation != 0)
{
sb.Append("," + mc.Rotation);
if (mc.Shear != 0)
{
sb.Append("," + mc.Shear);
}
}
sb.Append("]");
}
if (inst.Name != null && inst.Name != "")
{
sb.Append(",\"" + inst.Name + "\"");
}
sb.Append("]");
}
private void WriteInstance(IInstance inst)
{
// [defid,hasVals[7:bool], x?,y?,scaleX?, scaleY?, rotation?, skew?, "name"?
//[9,[262.5,53.26]],
//[5,[519.83,248.82],[5.042175,5.0422,54.15462]],
//[3,[122.32,70.4],[0.9999654,0.9999616,-30.16027],"name"]
WriteBits(inst.DefinitionId, idBitCount);
WriteBits(inst.InstanceHash, idBitCount);
Vex.Matrix m = inst.GetTransformAtTime(0).Matrix;
Vex.MatrixComponents mc = m.GetMatrixComponents();
int[] vals = new int[]
{
(int)(mc.TranslateX * DrawObject.twips),
(int)(mc.TranslateY * DrawObject.twips),
(int)(mc.ScaleX * DrawObject.twips),
(int)(mc.ScaleY * DrawObject.twips),
(int)(mc.Rotation * DrawObject.twips),
(int)(mc.Shear * DrawObject.twips)
};
bool[] hasVals = new bool[]
{
vals[0] != 0,
vals[1] != 0,
vals[2] != DrawObject.twips,
vals[3] != DrawObject.twips,
vals[4] != 0,
vals[5] != 0
};
bool hasName = !((inst.Name == null) || (inst.Name == ""));
bool hasNumber = false;
for (int i = 0; i < hasVals.Length; i++)
{
WriteBit(hasVals[i]);
if (hasVals[i])
{
hasNumber = true;
}
}
WriteBit(hasName);
if (hasNumber)
{
uint nBits = MinBits(vals); // always positive
WriteNBitsCount(nBits);
for (int i = 0; i < hasVals.Length; i++)
{
if (hasVals[i])
{
WriteBits(vals[i], nBits);
}
}
}
if (hasName)
{
// todo: write name strings
}
}
