/// <summary>
/// return the root formatting object
/// </summary>
/// <param name="regionId"></param>
/// <param name="tick"></param>
/// <returns></returns>
public override FormattingObject GetFormattingObject(TimeCode tick)
{
// if there is no body. then empty regions would be pruned
// see 9.3.3. part 5. map each non-empty region element to
// an fo:block-container element...
if (m_body == null)
{
return(null);
}
if (!m_body.TemporallyActive(tick))
{
return(null);
}
#region create single root and flow for the document.
var root = new Formatting.Root(this);
var flow = new Formatting.Flow(null);
flow.Parent = root;
root.Children.Add(flow);
#endregion
#region add a block container to the flow for each temporally active region
foreach (var region in Regions.Values)
{
if (region.TemporallyActive(tick))
{
var blockContainer = region.GetFormattingObject(tick);
#region apply animations on regions
foreach (var child in region.Children)
{
if (child is SetElement)
{
var fo = ((child as SetElement).GetFormattingObject(tick));
if (fo is Animation)
{
blockContainer.Animations.Add(fo as Animation);
}
}
}
#endregion
blockContainer.Parent = flow;
flow.Children.Add(blockContainer);
#region create a new subtree for the body element
/// select it into this region by adding its children
/// to block container
var block = m_body.GetFormattingObject(tick);
if (block != null)
{
block.Prune(region.Id); // deselect any content not for this region
if (block.Children.Count > 0)
{
if (block.Children[0].Children.Count > 0)
{
blockContainer.Children.Add(block);
block.Parent = blockContainer;
}
}
}
#endregion
}
}
#endregion
return(root);
}
/// <summary>
/// return the root formatting object
/// </summary>
/// <param name="regionId"></param>
/// <param name="tick"></param>
/// <returns></returns>
public override FormattingObject GetFormattingObject(TimeCode tick)
{
// if there is no body. then empty regions would be pruned
// see 9.3.3. part 5. map each non-empty region element to
// an fo:block-container element...
if (m_body == null) return null;
if (!m_body.TemporallyActive(tick)) return null;
#region create single root and flow for the document.
var root = new Formatting.Root(this);
var flow = new Formatting.Flow(null);
flow.Parent = root;
root.Children.Add(flow);
#endregion
#region add a block container to the flow for each temporally active region
foreach (var region in Regions.Values)
{
if (region.TemporallyActive(tick))
{
var blockContainer = region.GetFormattingObject(tick);
#region apply animations on regions
foreach (var child in region.Children)
{
if (child is SetElement)
{
var fo = ((child as SetElement).GetFormattingObject(tick));
if (fo is Animation)
{
blockContainer.Animations.Add(fo as Animation);
}
}
}
#endregion
blockContainer.Parent = flow;
flow.Children.Add(blockContainer);
#region create a new subtree for the body element
/// select it into this region by adding its children
/// to block container
var block = m_body.GetFormattingObject(tick);
if (block != null)
{
block.Prune(region.Id); // deselect any content not for this region
if (block.Children.Count > 0)
{
if (block.Children[0].Children.Count > 0)
{
blockContainer.Children.Add(block);
block.Parent = blockContainer;
}
}
}
#endregion
}
}
#endregion
return root;
}
