List <TextLine> ProcessLine(IBlockSet <IBlock> bset, TextPageInfo pageInfo)
{
var items = bset;
float minx = bset.GetX();
float maxx = bset.GetX() + bset.GetWidth();
float last_y = float.NaN;
TextLine last_tl = null;
var lines = new List <TextLine>();
foreach (var it in items)
{
var bl = (BlockLine)it;
var tl = new TextLine
{
FontName = bl.FontName,
FontSize = bl.FontSize,
FontStyle = bl.FontStyle,
Text = bl.Text,
MarginLeft = bl.GetX() - minx,
MarginRight = maxx - (bl.GetX() + bl.GetWidth()),
BeforeSpace = (last_tl != null) ? (float?)(last_y - bl.GetH() - bl.FontSize) : null,
AfterSpace = null,
HasLargeSpace = bl.HasLargeSpace,
Block = bl,
HasBackColor = bl.HasBackColor,
PageInfo = pageInfo
};
tl.CenteredAt = 0.5f * (tl.MarginLeft - tl.MarginRight);
lines.Add(tl);
if (last_tl != null)
{
if (float.IsNaN(last_y))
{
PdfReaderException.AlwaysThrow("float.IsNaN(last_y)");
}
float a = bl.GetHeight();
float b = bl.FontSize;
float diff = last_y - bl.GetH();
last_tl.AfterSpace = (last_y - bl.GetH() - bl.FontSize);
if (diff < 1f)
{
PdfReaderException.Warning("BlockLines in different lines - result in wrong text aligment");
}
}
last_tl = tl;
last_y = bl.GetH();
}
return(lines.ToList());
}
IBlockSet <IBlock> Merge(IBlockSet <IBlock> b1, IBlockSet <IBlock> b2)
{
bool first = b1.GetX() < b2.GetX();
float x1 = Math.Min(b1.GetX(), b2.GetX());
float x2 = Math.Max(b1.GetX() + b1.GetWidth(), b2.GetX() + b2.GetWidth());
float h1 = Math.Min(b1.GetH(), b2.GetH());
float h2 = Math.Max(b1.GetH() + b1.GetHeight(), b2.GetH() + b2.GetHeight());
var blocks = (first) ? b1.Concat(b2) : b2.Concat(b1);
var newblock = new BlockSet2 <IBlock>(blocks, x1, h1, x2, h2);
return(newblock);
}
IBlockSet <IBlock> ResizeBlockSet(IBlockSet <IBlock> bset, float minX, float maxX)
{
float maxWidth = maxX - minX;
float width = bset.GetWidth();
bool shouldResize = Math.Abs(maxWidth - width) > WIDTH_DIFFERENCE;
float x1 = Math.Min(minX, bset.GetX());
float x2 = Math.Max(maxX, bset.GetX() + bset.GetWidth());
float h1 = bset.GetH();
float h2 = bset.GetH() + bset.GetHeight();
if (shouldResize)
{
return(new BlockSet2 <IBlock>(bset, x1, h1, x2, h2));
}
return(bset);
}
