public override void writeDatasetAttributes(string datasetName, StringVector attributeNames, Int32Vector values)
{
throw new NotImplementedException();
}
private void InitializeMetrics()
{
Contract.Requires(_typeface != null, "Typeface cannot be null.");
Contract.Requires(_mapping != null, "Mapping cannot be null.");
Contract.Requires(_transform != null, "Transform must be initialized first.");
ushort glyph = _mapping.Glyph.GetValueOrDefault();
checked
{
_emHeight = (ushort)Round(_typeface.Height * _emSize);
_emBaseline = (short)Round(_typeface.Baseline * _emSize);
}
// System.Diagnostics.Debug.WriteLine("{2}: {0} {1}",
// _typeface.LeftSideBearings[glyph] * _emSize,
// _typeface.RightSideBearings[glyph] * _emSize, (char)(int)_mapping.Character);
if (_antialiasLevel == AntialiasingLevel.None)
{
_emSideBearing = new Int32Thickness(
Round(_typeface.LeftSideBearings[glyph] * _emSize),
Round(_typeface.TopSideBearings[glyph] * _emSize),
Round(_typeface.RightSideBearings[glyph] * _emSize),
Round(_typeface.BottomSideBearings[glyph] * _emSize)
);
}
else
{
_emSideBearing = new Int32Thickness(
Floor(_typeface.LeftSideBearings[glyph] * _emSize),
Floor(_typeface.TopSideBearings[glyph] * _emSize),
Floor(_typeface.RightSideBearings[glyph] * _emSize),
Floor(_typeface.BottomSideBearings[glyph] * _emSize)
);
}
Rect advance = new Rect(new Size(_typeface.AdvanceWidths[glyph], _typeface.AdvanceHeights[glyph]));
Rect advanceTransformed = _transform.TransformBounds(advance);
_emAdvance = new Int32Vector(
Round(advanceTransformed.Width * _emSize),
Round(advanceTransformed.Height * _emSize)
);
if (!_transform.Value.IsIdentity)
{
Rect boundBox = _run.ComputeInkBoundingBox();
Rect advanceBox = boundBox.Add(_emSideBearing);
Rect boundBoxTransformed = _transform.TransformBounds(boundBox);
Rect advanceBoxTransformed = _transform.TransformBounds(advanceBox);
Thickness bearingTransformed = boundBox.Subtract(advanceBox);
_emSideBearing = new Int32Thickness(
Round(bearingTransformed.Left),
Round(bearingTransformed.Top),
Round(bearingTransformed.Right),
Round(bearingTransformed.Bottom)
);
}
}
