public BlockPage Process(BlockPage page)
{
var result = new BlockPage();
foreach (var block in page.AllBlocks)
{
var column = FindColumn(block);
if (column == null)
{
PdfReaderException.AlwaysThrow("Invalid blockset column assigned -- review stage 2");
}
var bset = block as BlockSet <IBlock>;
if (bset != null)
{
var resizedBlock = new BlockSet2 <IBlock>(bset, column.GetX(), bset.GetH(), column.GetX() + column.GetWidth(), bset.GetH() + bset.GetHeight());
result.Add(resizedBlock);
}
else
{
// image or text?
result.Add(block);
}
}
return(result);
}
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);
}
public BlockPage Process(BlockPage page)
{
var result = new BlockPage();
SetupPage(page);
const float error_othercolumn = 2f;
var blocksets = page.AllBlocks.ToList();
if (blocksets.Count == 0)
{
return(page);
}
float x1 = _MinX;
float x2 = _MaxX;
float dx = _PageWidth;
float h1 = page.AllBlocks.GetH();
float h2 = page.AllBlocks.GetH() + page.AllBlocks.GetHeight();
float dh = page.AllBlocks.GetHeight() + 2;
// Prepare the values order by X
int id = 0;
var values = page.AllBlocks.Select(b => new Data
{
ID = id++,
X = (int)(6.0 * ((b.GetX() - x1) / dx) + 0.5),
X2 = (int)(6.0 * ((b.GetX() + b.GetWidth() - x1) / dx) + 0.5),
Y = (int)(1000 * (b.GetH() - h1) / (dh)),
Y1 = (int)(1000 * (b.GetH() + b.GetHeight() - h1) / (dh)),
W = (int)(6.0 * (b.GetWidth() / dx) + 0.5),
RW = b.GetWidth(),
B = b
})
.ToList();
for (int i = 0; i < values.Count; i++)
{
var blsearch = values[i];
if (blsearch.B is TableSet || blsearch.B is ImageBlock)
{
result.Add(blsearch.B);
continue;
}
var bl = blsearch.B;
Block block = null;
if ((blsearch.X < 0) || (blsearch.X2 > 6))
{
PdfReaderException.Warning("page calculation error");
blsearch.X = (blsearch.X < 0) ? 0 : blsearch.X;
blsearch.X2 = (blsearch.X2 > 6) ? 6 : blsearch.X2;
}
// set min size
if (blsearch.X == 0)
{
float diff = blsearch.B.GetX() - _MinX;
if (diff < -MAX_PAGE_WIDTH_DIFFERENCE)
{
PdfReaderException.Warning("invalid difference");
}
if (Math.Abs(diff) > error_othercolumn)
{
float width = bl.GetX() + bl.GetWidth() - _MinX;
block = new Block()
{
X = _MinX,
Width = width,
H = blsearch.B.GetH(),
Height = blsearch.B.GetHeight()
};
}
}
if (blsearch.X2 == 6)
{
float diff = _MaxX - blsearch.B.GetX() - blsearch.B.GetWidth();
if (diff < -MAX_PAGE_WIDTH_DIFFERENCE)
{
PdfReaderException.Warning("invalid difference");
}
if (Math.Abs(diff) > error_othercolumn)
{
float width = _MaxX - bl.GetX();
float bx1 = _MaxX - width;
block = new Block()
{
X = bx1,
Width = width,
H = blsearch.B.GetH(),
Height = blsearch.B.GetHeight()
};
}
}
if (block != null)
{
// ensure it will increase
float diff = block.GetWidth() - blsearch.B.GetWidth();
if (diff < 0)
{
if (_OriginalPageWidth == _PageWidth)
{
PdfReaderException.Warning("invalid difference: still same page width?");
}
}
// may receive multiples - confusing...
var original = (IEnumerable <IBlock>)blsearch.B;
if ((original is TableSet) || (original is ImageBlock))
{
PdfReaderException.AlwaysThrow("Block should not be resized");
}
var replace = new BlockSet2 <IBlock>(original, block.GetX(), block.GetH(), block.GetX() + block.GetWidth(), block.GetH() + block.GetHeight());
result.Add(replace);
}
else
{
result.Add(blsearch.B);
}
}
return(result);
}
public BlockPage Process(BlockPage page)
{
var blocksets = page.AllBlocks.ToList();
if (blocksets.Count == 0)
{
return(page);
}
// implemented ONLY for 3 columns
if (blocksets.Count != 3)
{
return(page);
}
var columns = page.AllBlocks.OrderBy(b => b.GetX()).ToArray();
float maxColumn = page.AllBlocks.Max(b => b.GetWidth());
float x1 = page.AllBlocks.GetX();
float x2 = page.AllBlocks.GetX() + page.AllBlocks.GetWidth();
float dx = page.AllBlocks.GetWidth() + 2;
int id = 0;
var resizedColumns = columns.Select(b => new
{
ID = id++,
X = (int)(6.0 * ((b.GetX() - x1) / dx) + 0.5),
W = (int)(6.0 * (b.GetWidth() / dx) + 0.5),
B = b
})
.Select(d =>
{
// may receive multiples - confusing...
var original = (IEnumerable <IBlock>)d.B;
if ((original is TableSet) || (original is ImageBlock))
{
return(d.B);
}
int nextId = d.ID + 1;
if (d.ID >= 3) // only first and second
{
return(d.B);
}
if (d.W == 1) // small column
{
var block = d.B;
float new_x2 = columns[nextId].GetX() - COLUMN_DISTANCE;
float old_x2 = block.GetX() + block.GetWidth();
float diff = new_x2 - old_x2;
if (diff < 0)
{
PdfReaderException.Warning("decreasing the column size");
}
var replace = new BlockSet2 <IBlock>(original, block.GetX(), block.GetH(), new_x2, block.GetH() + block.GetHeight());
return(replace);
}
return(d.B);
}).ToArray();
var newpage = new BlockPage();
newpage.AddRange(resizedColumns);
return(newpage);
}
public BlockPage Process(BlockPage page)
{
float error_othercolumn = 2f;
var blocksets = page.AllBlocks.ToList();
if (blocksets.Count == 0)
{
return(page);
}
float x1 = page.AllBlocks.GetX();
float x2 = page.AllBlocks.GetX() + page.AllBlocks.GetWidth();
float dx = page.AllBlocks.GetWidth() + 2;
float h1 = page.AllBlocks.GetH();
float h2 = page.AllBlocks.GetH() + page.AllBlocks.GetHeight();
float dh = page.AllBlocks.GetHeight() + 2;
float pageSize = page.AllBlocks.Max(b => b.GetX() + b.GetWidth());
// Prepare the values order by X
int id = 0;
var values = page.AllBlocks.Select(b => new Data
{
ID = id++,
X = (int)(6.0 * ((b.GetX() - x1) / dx) + 0.5),
X2 = (int)(6.0 * ((b.GetX() + b.GetWidth() - x1) / dx) + 0.5),
Y = (int)(1000 * (b.GetH() - h1) / (dh)),
Y1 = (int)(1000 * (b.GetH() + b.GetHeight() - h1) / (dh)),
W = (int)(6.0 * (b.GetWidth() / dx) + 0.5),
RW = b.GetWidth(),
B = b
})
.OrderByDescending(p => p.W)
.ToList();
var columnW = (from v in values
group v by v.W into g
select new { g.Key, size = g.Max(ta => ta.RW) }).ToDictionary(t => t.Key);
foreach (var blsearch in values)
{
if (blsearch.B is TableSet)
{
continue;
}
if (blsearch.B is ImageBlock)
{
continue;
}
// we could have used predefined blocks (w=6, w=3, etc)
var predefinedBlocks = values;
var over = predefinedBlocks
.Where(v => v != blsearch && v.X <= blsearch.X && v.X2 >= blsearch.X2)
.Where(v => v.RW > blsearch.RW)
.Where(v => Math.Abs(v.RW - blsearch.RW) > error_othercolumn)
.Select(v => v.B)
.ToList();
var curblocks = values.Select(v => v.B).ToList();
List <IBlock> repls = new List <IBlock>();
foreach (var bl in over)
{
var compareBlocks = curblocks.Except(new IBlock[] { bl, blsearch.B });
var block = new Block()
{
X = bl.GetX(),
Width = bl.GetWidth(),
H = blsearch.B.GetH(),
Height = blsearch.B.GetHeight()
};
// ensure it will increase
float diff = block.GetWidth() - blsearch.B.GetWidth();
if (diff < 0)
{
PdfReaderException.AlwaysThrow("should never decrease the block size");
}
if (CheckBoundary(compareBlocks, block))
{
// may receive multiples - confusing...
var original = (IEnumerable <IBlock>)blsearch.B;
if ((original is TableSet) || (original is ImageBlock))
{
PdfReaderException.AlwaysThrow("Block should not be resized");
}
var replace = new BlockSet2 <IBlock>(original, block.GetX(), block.GetH(), block.GetX() + block.GetWidth(), block.GetH() + block.GetHeight());
bool isStillContained = Block.Contains(replace, blsearch.B);
if (!isStillContained)
{
bool hasOverlap = Block.HasOverlap(replace, blsearch.B);
// TODO: review this issue
if (!hasOverlap)
{
PdfReaderException.Warning("Block was moved to another place -- ignore");
continue;
}
}
repls.Add(replace);
}
}
if (repls.Count > 0)
{
// this is important because repls.Count can be > 1
if (repls.Count > 1)
{
// add a breakpoint to monitor if needed
}
var largest_replace = repls.OrderByDescending(t => t.GetWidth()).First();
blsearch.B = largest_replace;
}
}
var result = new BlockPage();
result.AddRange(values.Select(p => (IBlock)p.B));
//result.AddRange(OrderedBlocks);
return(result);
}
