public Size GetSize()
{
if (null == Molecule && null == Denominator)
{
//返回默认分数大小
return(new Size(FontManager.Instance.FontSize, FontManager.Instance.FontSize * 2.4));
}
else
{
double maxWidth = 0;
double maxHeight = 0;
if (null == Molecule && null != Denominator)
{
maxWidth = FontManager.Instance.FontSize > Denominator.GetSize().Width ? FontManager.Instance.FontSize : Denominator.GetSize().Width;
maxHeight = FontManager.Instance.FontSize * 1.4 + Denominator.GetSize().Height;
return(new Size(maxWidth, maxHeight));
}
if (null != Molecule && null == Denominator)
{
maxWidth = FontManager.Instance.FontSize > Molecule.GetSize().Width ? FontManager.Instance.FontSize : Molecule.GetSize().Width;
maxHeight = FontManager.Instance.FontSize * 1.4 + Molecule.GetSize().Height;
return(new Size(maxWidth, maxHeight));
}
var topSize = Molecule.GetSize();
var bottomSize = Denominator.GetSize();
maxWidth = topSize.Width > bottomSize.Width ? topSize.Width : bottomSize.Width;
return(new Size(maxWidth, topSize.Height + bottomSize.Height + FontManager.Instance.FontSize * 0.4));
}
}
public Point GotoNextPart(Point caretLocation)
{
/*1.当前输入分子；2.当前输入分母*/
bool isInputMolecule = IsContainCaretLocation(Molecule, caretLocation);
if (isInputMolecule)
{
if (null == Denominator)
{
if (null == Molecule)
{
return(new Point(this.Location.X, this.Location.Y + FontManager.Instance.FontSize * 1.4));
}
else
{
return(new Point(this.Location.X, this.Location.Y + Molecule.GetSize().Height + FontManager.Instance.FontSize * 0.4));
}
}
else
{
var denominatorSize = Denominator.GetSize();
return(new Point(Denominator.Location.X + denominatorSize.Width, Denominator.Location.Y));
}
}
else
{
var fractionSize = GetSize();
MessageManager.Instance.OnInputParentChanged(ParentId);
return(new Point(Location.X + fractionSize.Width, Location.Y + Molecule.GetSize().Height - FontManager.Instance.FontSize * 0.3));
}
}
private Line CreateFractionLine()
{
Line separateLine = new Line();
separateLine.Uid = ID;
separateLine.Stroke = Brushes.Black;
separateLine.X1 = Location.X;
double maxLineWidth = 0;
if (null != Molecule)
{
separateLine.Y1 = Location.Y + Molecule.GetSize().Height + FontManager.Instance.FontSize * 0.2;
maxLineWidth = Molecule.GetSize().Width;
separateLine.X2 = Location.X + maxLineWidth;
}
else
{
separateLine.Y1 = Location.Y + FontManager.Instance.FontSize * 1.2;
separateLine.X2 = Location.X + FontManager.Instance.FontSize;
}
if (null != Denominator)
{
var denominatorMaxLineWidth = Denominator.GetSize().Width;
if (denominatorMaxLineWidth > maxLineWidth)
{
separateLine.X2 = Location.X + denominatorMaxLineWidth;
}
}
separateLine.Y2 = separateLine.Y1;
_separateLineY = separateLine.Y1;
return(separateLine);
}
public void AddChildren(IEnumerable <IBlock> inputCharactors, Point caretPoint, string parentId)
{
Rect moleculeRect;
Rect denominatorRect;
if (null == Molecule)
{
moleculeRect = new Rect(Location.X - 2, Location.Y - 4, FontManager.Instance.FontSize + 4, FontManager.Instance.FontSize + 4);
}
else
{
moleculeRect = new Rect(Location.X - 2, Location.Y - 4, Molecule.GetSize().Width + 4, Molecule.GetSize().Height + 4);
}
if (null == Denominator)
{
denominatorRect = new Rect(Location.X - 2, Location.Y + FontManager.Instance.FontSize * 1.2 - 2, FontManager.Instance.FontSize + 4, FontManager.Instance.FontSize + 4);
}
else
{
denominatorRect = new Rect(Location.X - 2, Location.Y + moleculeRect.Height + FontManager.Instance.FontSize * 0.2 - 2, Denominator.GetSize().Width + 4, Denominator.GetSize().Height + 4);
}
if (moleculeRect.Contains(caretPoint))
{
if (null == Molecule)
{
Molecule = new BlockNode();
Molecule.ParentId = ID;
}
Molecule.AddChildren(inputCharactors, caretPoint, parentId);
}
else
{
if (null == Denominator)
{
Denominator = new BlockNode();
Denominator.ParentId = ID;
}
Denominator.AddChildren(inputCharactors, caretPoint, parentId);
}
}