public FunctionalGroupTextSource(FunctionalGroup parentGroup, bool isFlipped = false)
{
foreach (var term in parentGroup.ExpandIntoTerms(isFlipped))
{
foreach (var part in term.Parts)
{
Runs.Add(new LabelTextSourceRun
{
IsAnchor = term.IsAnchor,
IsEndParagraph = false,
IsSubscript = part.Type == FunctionalGroupPartType.Subscript,
IsSuperscript = part.Type == FunctionalGroupPartType.Superscript,
Text = part.Text
});
}
}
}
public void CreateFunctionalGroupCharacters(Atom atom, Options options)
{
FunctionalGroup fg = atom.Element as FunctionalGroup;
double baFromNorth = Vector.AngleBetween(BasicGeometry.ScreenNorth, atom.BalancingVector(true));
CompassPoints nesw = BasicGeometry.SnapTo2EW(baFromNorth);
bool reverse = nesw == CompassPoints.West;
#region Set Up Atom Colours
string atomColour = "000000";
if (options.ColouredAtoms)
{
if (!string.IsNullOrEmpty(fg.Colour))
{
atomColour = fg.Colour;
// Strip out # as OoXml does not use it
atomColour = atomColour.Replace("#", "");
}
}
#endregion Set Up Atom Colours
List <FunctionalGroupTerm> terms = fg.ExpandIntoTerms(reverse);
#region Step 1 - Generate the characters and measure Bounding Boxes
var cursorPosition = atom.Position;
List <AtomLabelCharacter> fgCharacters = new List <AtomLabelCharacter>();
TtfCharacter hydrogenCharacter = _TtfCharacterSet['H'];
Rect fgBoundingBox = Rect.Empty;
Rect anchorBoundingBox = Rect.Empty;
foreach (var term in terms)
{
foreach (var part in term.Parts)
{
foreach (char c in part.Text)
{
Rect bb = AddCharacter(c, part.Type);
fgBoundingBox.Union(bb);
if (term.IsAnchor)
{
anchorBoundingBox.Union(bb);
}
}
}
}
#endregion Step 1 - Generate the characters and measure Bounding Boxes
#region Step 2 - Move all characters such that the anchor term is centered on the atom position
double offsetX;
double offsetY;
if (reverse)
{
offsetX = fgBoundingBox.Width - anchorBoundingBox.Width / 2;
offsetY = anchorBoundingBox.Height / 2;
}
else
{
offsetX = anchorBoundingBox.Width / 2;
offsetY = anchorBoundingBox.Height / 2;
}
offsetY = offsetY + anchorBoundingBox.Top - atom.Position.Y;
foreach (var alc in fgCharacters)
{
alc.Position = new Point(alc.Position.X - offsetX, alc.Position.Y - offsetY);
}
#endregion Step 2 - Move all characters such that the anchor term is centered on the atom position
#region Step 3 - Transfer characters into main list
foreach (var alc in fgCharacters)
{
_AtomLabelCharacters.Add(alc);
}
#endregion Step 3 - Transfer characters into main list
#region Step 4 - Convex Hull
_convexhHulls.Add(atom.Path, ConvexHull(atom.Path));
#endregion Step 4 - Convex Hull
// Local Function
Rect AddCharacter(char c, FunctionalGroupPartType type)
{
TtfCharacter ttf = _TtfCharacterSet[c];
var thisCharacterPosition = GetCharacterPosition(cursorPosition, ttf);
var alc = new AtomLabelCharacter(thisCharacterPosition, ttf, atomColour, c, atom.Path, atom.Parent.Path);
alc.IsSubScript = type == FunctionalGroupPartType.Subscript;
alc.IsSuperScript = type == FunctionalGroupPartType.Superscript;
alc.IsSmaller = alc.IsSubScript || alc.IsSuperScript;
Rect thisBoundingBox;
if (alc.IsSmaller)
{
// Start by assuming it's SubScript
thisCharacterPosition.Offset(0, OoXmlHelper.ScaleCsTtfToCml(hydrogenCharacter.Height * OoXmlHelper.SUBSCRIPT_DROP_FACTOR, _meanBondLength));
if (alc.IsSuperScript)
{
// Shift up by height of H to make it SuperScript
thisCharacterPosition.Offset(0, -OoXmlHelper.ScaleCsTtfToCml(hydrogenCharacter.Height, _meanBondLength));
}
// Reset the character's position
alc.Position = thisCharacterPosition;
thisBoundingBox = new Rect(alc.Position,
new Size(OoXmlHelper.ScaleCsTtfToCml(alc.Character.Width, _meanBondLength) * OoXmlHelper.SUBSCRIPT_SCALE_FACTOR,
OoXmlHelper.ScaleCsTtfToCml(alc.Character.Height, _meanBondLength) * OoXmlHelper.SUBSCRIPT_SCALE_FACTOR));
cursorPosition.Offset(OoXmlHelper.ScaleCsTtfToCml(alc.Character.IncrementX, _meanBondLength) * OoXmlHelper.SUBSCRIPT_SCALE_FACTOR, 0);
}
else
{
thisBoundingBox = new Rect(alc.Position,
new Size(OoXmlHelper.ScaleCsTtfToCml(alc.Character.Width, _meanBondLength),
OoXmlHelper.ScaleCsTtfToCml(alc.Character.Height, _meanBondLength)));
cursorPosition.Offset(OoXmlHelper.ScaleCsTtfToCml(alc.Character.IncrementX, _meanBondLength), 0);
}
fgCharacters.Add(alc);
return(thisBoundingBox);
}
}