private InternalPrintProcessor(IPrintProcessor printProcessor, FixedDocument fixedDocument)
{
_printProcessor = printProcessor;
_fixedDocument = fixedDocument;
_pageHelper = CreateNewPageHelper();
}
private void ConcludePage()
{
ConcludeDocumentPage(_pageHelper, false);
_pageHelper = CreateNewPageHelper();
}
private void AddLineItem(IPrintContent item, bool isLast)
{
if (item is PageBreak)
{
ConcludeDocumentPage(_pageHelper, CurrentPageNumber, false);
_pageHelper = CreateNewPageHelper();
return;
}
var content = item.Content;
content.Measure(new Size(_pageHelper.BodyGrid.DesiredSize.Width, double.MaxValue));
var lineHeiht = content.DesiredSize.Height;
if (isLast)
{
// otherwise the last item is put on a new pageContent if desired, or it is left on the current pageContent and the PrintAppendixes that have no space would be print on the next pageContent
// should occur only if there are PrintAppendixes that have to be print on the last pageContent
Action concludePage = () =>
{
ConcludeDocumentPage(_pageHelper, CurrentPageNumber, false);
_pageHelper = CreateNewPageHelper();
};
Action addLastLineData = () =>
{
AddLineData(content);
Trace.TraceInformation("Last item print");
};
Action <Action, Action> doAction = (first, second) =>
{
first();
second();
ConcludeDocument();
};
if (_pageHelper.HasSpace(lineHeiht, CurrentPageNumber, true))
{
// if (_printProcessor.BreakLastItemIfLastPageWouldBeEmpty)
// {
// doAction(concludePage, addLastLineData);
// }
// else
{
AddLineData(content);
ConcludeDocumentPage(_pageHelper, CurrentPageNumber, true);
}
}
else
{
doAction(concludePage, addLastLineData);
}
return;
}
if (_pageHelper.HasSpace(lineHeiht, CurrentPageNumber, true))
{
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeiht);
}
else if (_pageHelper.HasSpace(lineHeiht, CurrentPageNumber, false))
{
Trace.TraceInformation("Second chance because item has no space");
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeiht);
}
else
{
ConcludeDocumentPage(_pageHelper, CurrentPageNumber, false);
_pageHelper = CreateNewPageHelper();
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeiht);
}
}
private void AddLineItem(IPrintContent item, bool isLast)
{
if (item is PageBreak)
{
ConcludeDocumentPage(_pageHelper, false);
_pageHelper = CreateNewPageHelper();
}
else if (item is IPageBreakAware pageBreakAware)
{
AddLineItem(pageBreakAware, isLast);
}
else if (item is IDirectPrintContent directPrintContent)
{
var position = new Point(directPrintContent.Position.X + _pageHelper.PrintingDimension.Margin.Left, directPrintContent.Position.Y + _pageHelper.PrintingDimension.Margin.Top);
PositionUiElement(_pageHelper.PageContent, item.Content, position);
}
else
{
var content = item.Content;
content.Measure(new Size(_pageHelper.BodyGrid.DesiredSize.Width, double.MaxValue));
var lineHeight = content.DesiredSize.Height;
if (lineHeight < _pageHelper.PrintingDimension.GetHeightForBodyGrid(CurrentPageNumber, isLast))
{
// OK
}
else
{
var helpText = $"Either reduce size of the line or consider deriving {item.GetType()} form {nameof(IPageBreakAware)}";
if (lineHeight > _pageHelper.PrintingDimension.PageSize.Height)
{
Trace.TraceWarning($"{Description} page-size. {helpText}");
}
else if (lineHeight > _pageHelper.PrintingDimension.PrintablePageSize.Height)
{
Trace.TraceWarning($"{Description} printable-page-size. {helpText}");
}
else if (lineHeight > _pageHelper.PrintingDimension.GetHeightForBodyGrid(CurrentPageNumber, isLast))
{
Trace.TraceWarning($"{Description} body grid. {helpText}");
}
}
if (isLast)
{
// otherwise the last item is put on a new pageContent if desired, or it is left on the current
// pageContent and the PrintAppendixes that have no space would be print on the next pageContent
// should occur only if there are PrintAppendixes that have to be print on the last pageContent
if (_pageHelper.HasSpace(lineHeight, CurrentPageNumber, true))
{
AddLineData(content);
ConcludeDocumentPage(_pageHelper, true);
}
else
{
ConcludePage();
AddLastLineData(content);
ConcludeDocument();
}
return;
}
if (_pageHelper.HasSpace(lineHeight, CurrentPageNumber, true))
{
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeight);
}
else if (_pageHelper.HasSpace(lineHeight, CurrentPageNumber, false))
{
Debug.WriteLine("PRINTING: Second chance because item has no space");
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeight);
}
else
{
ConcludeDocumentPage(_pageHelper, false);
_pageHelper = CreateNewPageHelper();
AddLineData(content);
_pageHelper.RemoveRemainingSpace(lineHeight);
}
}
}