private PageContext CreateContextForPagePosition(
PagePosition pagePosition,
Rectangle occupiedRegion,
double spaceAfterPrevious,
Func <PageNumber, IPage> pageFactory)
{
var page = pageFactory(pagePosition.PageNumber);
var columnSpace = _columnsConfiguration.CalculateColumnSpace(pagePosition.PageColumnIndex);
var region = page
.GetContentRegion()
.CropHorizontal(columnSpace.X, columnSpace.Width);
var context = new PageContext(
pagePosition,
region,
page.DocumentVariables);
var cropTop = occupiedRegion.BottomY == 0
? spaceAfterPrevious
: occupiedRegion.BottomY + spaceAfterPrevious - page.Margin.Top;
// TODO: check -0.001
context = context.CropFromTop(Math.Min(cropTop, context.Region.Height - 0.001));
return(context);
}
public override void Prepare(IPage page)
{
var pagePosition = new PagePosition(page.PageNumber);
var region = page
.GetPageRegion()
.Crop(page.Margin.Top, this.PageMargin.Right, this.PageMargin.Footer, this.PageMargin.Left);
var context = new PageContext(pagePosition, region, page.DocumentVariables);
PageContext childContextRequest(PagePosition pagePosition, PageContextElement child)
=> this.OutOfPageContextFactory(page);
var absoluteHeight = page.Configuration.Height;
var spaceAfterPrevious = 0.0;
foreach (var child in _childs)
{
child.Prepare(context, childContextRequest);
var lastRegion = child.LastPageRegion;
spaceAfterPrevious = child.CalculateSpaceAfter(_childs);
var cropFromTop = Math.Min(lastRegion.Region.Height + spaceAfterPrevious, absoluteHeight - 0.001);
context = context.CropFromTop(cropFromTop);
}
var boundingRegion = _childs
.SelectMany(c => c.PageRegions.Where(pr => pr.PagePosition.PageNumber == page.PageNumber))
.UnionPageRegions(Margin.None)
.ToArray()
.Single();
var offsetY = page.Configuration.Height
- page.Margin.Top
- Math.Max(boundingRegion.Region.Height, this.PageMargin.FooterHeight)
- this.PageMargin.Footer;
_pageOffset = new Point(0, offsetY);
foreach (var child in _childs)
{
child.SetPageOffset(_pageOffset);
}
if (boundingRegion.Region.Height < this.PageMargin.FooterHeight)
{
var resized = new Rectangle(boundingRegion.Region.TopLeft, boundingRegion.Region.Width, this.PageMargin.FooterHeight);
boundingRegion = new PageRegion(boundingRegion.PagePosition, resized);
}
this.ResetPageRegions(new[] { boundingRegion });
}