/**
* private consturctor
*/
private VerticalArea(Area[] areas, int baseline, Area source)
: base(areas, source)
{
this.baseline = baseline;
BoundingBox bbox = content[baseline].BoundingBox;
for (int i = 0; i < content.Length; i++)
{
if (i < baseline)
{
bbox.Over(content[i].BoundingBox);
}
else if (i > baseline)
{
bbox.Under(content[i].BoundingBox);
}
}
this.box = bbox;
}
private static void CreateCellSizesAndShifts(MathMLTableCellElement[][] cells,
Row[] rows, Column[] columns, ref BoundingBox[][] sizes, ref PointF[][] shifts)
{
sizes = new BoundingBox[cells.Length][];
shifts = new PointF[cells.Length][];
// init to 1 to skip over first spacing row for frame
int rowIndex = 1;
// y shift, start with upper frame space
float y = rows[0].VerticalExtent;
// outer loop - rows
for (int i = 0; i < cells.Length; i++)
{
// init to 1 to skip over first spacing column for frame
int colIndex = 1;
// start x shift with frame space
float x = columns[0].Width;
sizes[i] = new BoundingBox[cells[i].Length];
shifts[i] = new PointF[cells[i].Length];
// inner loop - columns
for (int j = 0; j < cells[i].Length; j++)
{
if (cells[i][j] != null)
{
BoundingBox box = BoundingBox.New();
for (int k = 0, k2 = 0; k < cells[i][j].ColumnSpan; k++, k2 += 2)
{
if (colIndex + k2 < columns.Length)
{
if (k2 == 0)
{
box.Width = columns[colIndex].Width;
}
else
{
// add content column
box.Append(BoundingBox.New(columns[colIndex + k].Width, 0, 0));
// add space column
box.Append(BoundingBox.New(columns[colIndex + k + 1].Width, 0, 0));
}
}
else
{
Debug.WriteLine("warning, insuffcient columns for spanning");
}
}
for (int k = 0, k2 = 0; k < cells[i][j].RowSpan; k++, k2 += 2)
{
if (rowIndex + k2 < rows.Length)
{
if (k2 == 0)
{
box.Height = rows[rowIndex].Height;
box.Depth = rows[rowIndex].Depth;
}
else
{
// add content row
box.Over(BoundingBox.New(0, rows[rowIndex + k2].Height, rows[rowIndex + k].Depth));
// add space row
box.Over(BoundingBox.New(0, rows[rowIndex + k2 + 1].Height, rows[rowIndex + k + 1].Depth));
}
}
}
Debug.Assert(box.Height == rows[rowIndex].Height);
sizes[i][j] = box;
shifts[i][j] = new PointF(x, y + box.Height);
}
// add width of current column and next column which is a spaceing column
// and set index to next non space column
x += columns[colIndex++].Width;
x += columns[colIndex++].Width;
}
// add vertical extent of current row and next row which is a spaceing row
// and set index to next non space row
y += rows[rowIndex++].VerticalExtent;
y += rows[rowIndex++].VerticalExtent;
}
}
