private Size MeasureOverride(Size availableSize, List <RenderableBlockAndElement> children)
{
// Reset all
foreach (var child in children)
{
child.RenderableBlock.Reset();
}
double consumedHeight = 0;
double remainingHeight = availableSize.Height;
double maxWidth = 0;
for (int i = 0; i < children.Count; i++)
{
var child = children[i];
if (child.RenderableBlock.IsColumn)
{
var columnGroup = children.Skip(i).TakeWhile(x => x.RenderableBlock.IsColumn).ToArray();
// See how many columns fit
double colsRemainingHeight = remainingHeight;
double colsConsumedHeight = consumedHeight;
double colsMaxWidth = maxWidth;
int colsThatFit = MeasureAsCols(columnGroup, availableSize.Width, ref colsRemainingHeight, ref colsConsumedHeight, ref colsMaxWidth);
// If they'll all fit, perfect!
if (colsThatFit == columnGroup.Length)
{
remainingHeight = colsRemainingHeight;
consumedHeight = colsConsumedHeight;
maxWidth = colsMaxWidth;
i += columnGroup.Length - 1;
foreach (var c in columnGroup)
{
c.RenderableBlock.IsDropped = false;
}
continue;
}
// Otherwise, try render as rows and see if that fits more
foreach (var c in columnGroup)
{
c.RenderableBlock.IsColumn = false;
}
double rowsRemainingHeight = remainingHeight;
double rowsConsumedHeight = consumedHeight;
double rowsMaxWidth = maxWidth;
int rowsThatFit = MeasureAsRows(columnGroup, availableSize.Width, ref rowsRemainingHeight, ref rowsConsumedHeight, ref rowsMaxWidth);
System.Diagnostics.Debug.WriteLine("Rows: " + rowsThatFit + ", Cols: " + colsThatFit);
// If any non-optional blocks don't fit, simplify
if (columnGroup.Skip(Math.Max(colsThatFit, rowsThatFit)).Any(x => !x.RenderableBlock.BlockSource.Optional))
{
return(MeasureOverrideOneLevelSimplified(availableSize, children));
}
// If more fit as rows, leave it as rows
if (rowsThatFit > colsThatFit)
{
remainingHeight = rowsRemainingHeight;
consumedHeight = rowsConsumedHeight;
maxWidth = rowsMaxWidth;
i += columnGroup.Length - 1;
foreach (var c in columnGroup.Take(rowsThatFit))
{
c.RenderableBlock.IsDropped = false;
}
continue;
}
// Otherwise, revert it back to columns
foreach (var c in columnGroup)
{
c.RenderableBlock.IsColumn = true;
}
// And re-measure for columns
MeasureAsCols(columnGroup.Take(colsThatFit), availableSize.Width, ref remainingHeight, ref consumedHeight, ref maxWidth);
i += columnGroup.Length - 1;
foreach (var c in columnGroup.Take(colsThatFit))
{
c.RenderableBlock.IsDropped = false;
}
continue;
}
else if (child.RenderableBlock.IsFactSet)
{
var factSetGroup = children.Skip(i).TakeWhile(x => x.RenderableBlock.IsFactSet).ToArray();
double factRemainingHeight = remainingHeight;
double factConsumedHeight = consumedHeight;
double factMaxWidth = maxWidth;
foreach (var f in factSetGroup)
{
MeasureAsRow(f, availableSize.Width, ref factRemainingHeight, ref factConsumedHeight, ref factMaxWidth);
}
if (factSetGroup.All(x => VisualTreeHelpers.Find <FactSetItemControl>(x.Element).FitsComfortably()))
{
foreach (var f in factSetGroup)
{
f.RenderableBlock.IsDropped = false;
}
i += factSetGroup.Length - 1;
continue;
}
foreach (var f in factSetGroup)
{
f.RenderableBlock.IsFactSet = false;
}
// Let continue to normal rows
}
if (MeasureAsRow(child, availableSize.Width, ref remainingHeight, ref consumedHeight, ref maxWidth))
{
child.RenderableBlock.IsDropped = false;
}
else
{
// If this block was required
if (!child.RenderableBlock.BlockSource.Optional)
{
return(MeasureOverrideOneLevelSimplified(availableSize, children));
}
break;
}
}
return(new Size(maxWidth, consumedHeight));
}