/// <summary>
/// Get the blocks.
/// </summary>
/// <param name="words">The words in the page.</param>
/// <param name="minimumWidth">The minimum width for a block.</param>
/// <param name="dominantFontWidthFunc">The function that determines the dominant font width.</param>
/// <param name="dominantFontHeightFunc">The function that determines the dominant font height.</param>
/// <param name="wordSeparator"></param>
/// <param name="lineSeparator"></param>
private IReadOnlyList <TextBlock> GetBlocks(IEnumerable <Word> words, double minimumWidth,
Func <IEnumerable <Letter>, double> dominantFontWidthFunc,
Func <IEnumerable <Letter>, double> dominantFontHeightFunc,
string wordSeparator, string lineSeparator)
{
// Filter out white spaces
words = words.Where(w => !string.IsNullOrWhiteSpace(w.Text));
if (!words.Any())
{
return(EmptyArray <TextBlock> .Instance);
}
XYLeaf root = new XYLeaf(words); // Create a root node.
XYNode node = VerticalCut(root, minimumWidth, dominantFontWidthFunc, dominantFontHeightFunc);
if (node.IsLeaf)
{
return(new List <TextBlock> {
new TextBlock((node as XYLeaf).GetLines(wordSeparator), lineSeparator)
});
}
else
{
var leaves = node.GetLeaves();
if (leaves.Count > 0)
{
return(leaves.ConvertAll(l => new TextBlock(l.GetLines(wordSeparator), lineSeparator)));
}
}
return(new List <TextBlock>());
}
/// <summary>
/// Get the blocks.
/// </summary>
/// <param name="pageWords">The words in the page.</param>
/// <param name="minimumWidth">The minimum width for a block.</param>
/// <param name="dominantFontWidthFunc">The function that determines the dominant font width.</param>
/// <param name="dominantFontHeightFunc">The function that determines the dominant font height.</param>
public IReadOnlyList <TextBlock> GetBlocks(IEnumerable <Word> pageWords, double minimumWidth,
Func <IEnumerable <Letter>, double> dominantFontWidthFunc,
Func <IEnumerable <Letter>, double> dominantFontHeightFunc)
{
if (pageWords.Count() == 0)
{
return(EmptyArray <TextBlock> .Instance);
}
XYLeaf root = new XYLeaf(pageWords); // Create a root node.
XYNode node = VerticalCut(root, minimumWidth, dominantFontWidthFunc, dominantFontHeightFunc);
if (node.IsLeaf)
{
return(new List <TextBlock> {
new TextBlock((node as XYLeaf).GetLines())
});
}
else
{
var leaves = node.GetLeaves();
if (leaves.Count > 0)
{
return(leaves.Select(l => new TextBlock(l.GetLines())).ToList());
}
}
return(new List <TextBlock>());
}
