/// <summary>
/// Calculates full relative rectangle of the formula
/// </summary>
public virtual void CalculateFullRelativeRectangle()
{
IDrawableSymbol symbol = null;
int up = 0, down = 0, width = 0;
for (int i = 0; i < Count; i++)
{
symbol = this[i] as IDrawableSymbol;
symbol.CalculateFullRelativeRectangle();
Rectangle r = symbol.PureDrawable.FullRelativeRectangle;
int w = r.Width;
if (r.Y < up)
{
up = r.Y;
}
if (r.X + r.Height > down)
{
down = r.X + r.Height;
}
width += w;
}
if (symbol == null)
{
fullRelativeRectangle.X = 0;
fullRelativeRectangle.Y = -PureDrawableSymbol.GetHeight(level) / 2;
fullRelativeRectangle.Width = PureDrawableSymbol.GetWidth(level);
fullRelativeRectangle.Height = PureDrawableSymbol.GetHeight(level);
return;
}
fullRelativeRectangle.X = 0;
fullRelativeRectangle.Y = up;
fullRelativeRectangle.Width = width;
fullRelativeRectangle.Height = down - up;
}
/// <summary>
/// Calculates positions of formula symbols
/// </summary>
public void CalculatePositions()
{
tempPosition.X = position.X;
tempPosition.Y = position.Y;
IDrawableSymbol symbol = null;
//int up = 0, down = 0, width = 0;
for (int i = 0; i < Count; i++)
{
symbol = this[i] as IDrawableSymbol;
symbol.PureDrawable.X = tempPosition.X;
symbol.PureDrawable.Y = tempPosition.Y;
symbol.CalculatePositions();
Rectangle r = symbol.PureDrawable.FullRelativeRectangle;
int w = r.Width;
tempPosition.X += w;
}
if (symbol == null)
{
endRectangle.X = position.X;
int h = PureDrawableSymbol.GetHeight(level);
endRectangle.Y = position.Y - h / 2;
endRectangle.Height = h;
int w = (int)(((float)h) * RELATION);
endRectangle.Width = w;
return;
}
endRectangle.Width = symbol.PureDrawable.FullRectangle.Width;
endRectangle.Height = symbol.PureDrawable.FullRectangle.Height;
endRectangle.X = tempPosition.X;
int H = symbol.PureDrawable.RelativeRectangle.Height;
int W = (int)(((float)H) * RELATION);
endRectangle.Width = W;
endRectangle.Y = tempPosition.Y - H / 2;
}