/// <summary>
/// Creates templates representing text inside cell form rectangles
/// </summary>
/// <param name="rowRectangle"></param>
/// <param name="verticalDividers"></param>
/// <param name="minWidth"></param>
private List <TextRectangleTemplate> CreateTemplates(Rectangle rowRectangle, List <float> verticalDividers,
float minWidth)
{
var templates = new List <TextRectangleTemplate>();
var added = false;
for (var index = 1; index < verticalDividers.Count; index++)
{
var divider = verticalDividers[index];
if (Math.Abs(divider - (rowRectangle.X + rowRectangle.Width)) < 2)
{
//hom many cells to span
var j = index - 1;
var span = 0;
while (j >= 0)
{
span++;
if (Math.Abs(verticalDividers[j] - rowRectangle.X) < 2)
{
break;
}
j--;
}
//add missing templates
var templ = new TextRectangleTemplate
{
Text = new List <TextRectangle>(),
X = rowRectangle.X,
Width = rowRectangle.Width,
HorizontalSpan = span,
VerticalSpan = (int)(rowRectangle.Height / minWidth),
Y = rowRectangle.Y,
Height = rowRectangle.Height
};
templates.Add(templ);
added = true;
}
if (divider > rowRectangle.X + rowRectangle.Width + 1)
{
if (!added)
{
var templ = new TextRectangleTemplate
{
Text = new List <TextRectangle>(),
X = rowRectangle.X,
Width = rowRectangle.Width,
HorizontalSpan = 1,
VerticalSpan = (int)(rowRectangle.Height / minWidth),
Y = rowRectangle.Y,
Height = rowRectangle.Height
};
templates.Add(templ);
}
break;
}
}
return(templates);
}
/// <summary>
/// Places text rectangles into templates
/// </summary>
/// <param name="textRect"></param>
/// <param name="template"></param>
/// <param name="yCoordKey"></param>
/// <param name="overflowDelta"></param>
private void PlaceTextRectIntoTemplates(List <TextRectangle> textRect,
Dictionary <float, List <TextRectangleTemplate> > template, float yCoordKey, float overflowDelta)
{
if (textRect.Count > 0)
{
foreach (var textRectangle in textRect)
{
foreach (var templateYcoord in template.Keys)
{
var maxHeight = template[templateYcoord].Max(x => x.Height);
if ((template[templateYcoord].Count > 0) && (templateYcoord >= textRectangle.Y) &&
(templateYcoord - maxHeight <= textRectangle.Y - textRectangle.Height))
{
var found = false;
foreach (var textRectangleTemplate in template[templateYcoord])
{
if ((textRectangle.X >= textRectangleTemplate.X) &&
(textRectangle.X < textRectangleTemplate.X + textRectangleTemplate.Width))
{
textRectangleTemplate.Text.Add(textRectangle);
textRectangle.Assigned = true;
found = true;
break;
}
}
if (!found)
{
//need to adjust other cells
var ordered = template[templateYcoord].OrderBy(x => x.X).ToList();
var i = 0;
while ((textRectangle.X > ordered[i].X) && (i < ordered.Count))
{
i++;
}
var xCoord = i == 0 ? 0 : ordered[i].X + ordered[i].Width;
foreach (var key in template.Keys)
{
var yCoord = template[key].Max(x => x.Y);
var newTempl = new TextRectangleTemplate
{
X = xCoord,
Y = yCoord,
Height = textRectangle.Height + overflowDelta,
Width = ordered[i].X - xCoord,
Text = new List <TextRectangle>()
};
template[key].Add(newTempl);
if (Math.Abs(key - templateYcoord) < TOLERANCE)
{
newTempl.Text.Add(textRectangle);
}
}
textRectangle.Assigned = true;
}
}
}
}
}
textRect = textRect.Where(x => !x.Assigned).ToList();
if (textRect.Count > 0)
{
if (!template.ContainsKey(yCoordKey))
{
template[yCoordKey] = new List <TextRectangleTemplate>();
}
var templ = new TextRectangleTemplate {
Text = textRect
};
template[yCoordKey].Add(templ);
}
}
