/// <summary>
/// append data from src to dest, dest data will changed***
/// </summary>
/// <param name="src"></param>
/// <param name="dest"></param>
internal static void AppendGlyph(TtfGlyph dest, TtfGlyph src)
{
int org_dest_len = dest._contourEndPoints.Length;
int src_contour_count = src._contourEndPoints.Length;
ushort org_last_point = (ushort)(dest._contourEndPoints[org_dest_len - 1] + 1); //since start at 0
dest.glyphPoints = Utils.ConcatArray(dest.glyphPoints, src.glyphPoints);
dest._contourEndPoints = Utils.ConcatArray(dest._contourEndPoints, src._contourEndPoints);
//offset latest append contour end points
int newlen = dest._contourEndPoints.Length;
for (int i = org_dest_len; i < newlen; ++i)
{
dest._contourEndPoints[i] += (ushort)org_last_point;
}
//calculate new bounds
Bounds destBound = dest.Bounds;
Bounds srcBound = src.Bounds;
short newXmin = (short)Math.Min(destBound.XMin, srcBound.XMin);
short newYMin = (short)Math.Min(destBound.YMin, srcBound.YMin);
short newXMax = (short)Math.Max(destBound.XMax, srcBound.XMax);
short newYMax = (short)Math.Max(destBound.YMax, srcBound.YMax);
dest._bounds = new Bounds(newXmin, newYMin, newXMax, newYMax);
}
internal static TtfGlyph Clone(TtfGlyph original)
{
//----------------------
return(new TtfGlyph(
Utils.CloneArray(original.glyphPoints),
Utils.CloneArray(original._contourEndPoints),
original.Bounds,
original.GlyphInstructions != null ? Utils.CloneArray(original.GlyphInstructions) : null));
}
internal static void TransformNormalWith2x2Matrix(TtfGlyph glyph, float m00, float m01, float m10, float m11)
{
//http://stackoverflow.com/questions/13188156/whats-the-different-between-vector2-transform-and-vector2-transformnormal-i
//http://www.technologicalutopia.com/sourcecode/xnageometry/vector2.cs.htm
//change data on current glyph
float new_xmin = 0;
float new_ymin = 0;
float new_xmax = 0;
float new_ymax = 0;
GlyphPointF[] glyphPoints = glyph.glyphPoints;
for (int i = glyphPoints.Length - 1; i >= 0; --i)
{
GlyphPointF p = glyphPoints[i];
float x = p.P.X;
float y = p.P.Y;
float newX, newY;
//please note that this is transform normal***
glyphPoints[i] = new GlyphPointF(
newX = (float)Math.Round((x * m00) + (y * m10)),
newY = (float)Math.Round((x * m01) + (y * m11)),
p.onCurve);
//short newX = xs[i] = (short)Math.Round((x * m00) + (y * m10));
//short newY = ys[i] = (short)Math.Round((x * m01) + (y * m11));
//------
if (newX < new_xmin)
{
new_xmin = newX;
}
if (newX > new_xmax)
{
new_xmax = newX;
}
//------
if (newY < new_ymin)
{
new_ymin = newY;
}
if (newY > new_ymax)
{
new_ymax = newY;
}
}
//TODO: review here
glyph._bounds = new Bounds(
(short)new_xmin, (short)new_ymin,
(short)new_xmax, (short)new_ymax);
}
//--------------
internal static void OffsetXY(TtfGlyph glyph, short dx, short dy)
{
//change data on current glyph
GlyphPointF[] glyphPoints = glyph.glyphPoints;
for (int i = glyphPoints.Length - 1; i >= 0; --i)
{
glyphPoints[i] = glyphPoints[i].Offset(dx, dy);
}
//-------------------------
Bounds orgBounds = glyph._bounds;
glyph._bounds = new Bounds(
(short)(orgBounds.XMin + dx),
(short)(orgBounds.YMin + dy),
(short)(orgBounds.XMax + dx),
(short)(orgBounds.YMax + dy));
}
