public int CalculatePages(Cairo.Context cr)
{
_cr = cr;
// Determine certain extents for all fonts for the current context.
foreach (FontInfo font in _appSettings.Fonts)
{
font.SetExtents(_cr);
}
// Generate page nodes
int pageNumber = 0;
PageNode currentPage = CreateNewPage(pageNumber++);
foreach (BaseNode line in _rawLineNodes)
{
if (line is CommandNode)
{
CommandNode command = (CommandNode)line;
switch (command.CommandType)
{
case CommandType.NewPage:
currentPage = CreateNewPage(pageNumber++);
break;
case CommandType.BeginRegion:
currentPage.BeginRegion(command.RegionType);
break;
case CommandType.EndRegion:
currentPage.EndRegion();
break;
}
}
else
{
if (!currentPage.TryAddLine(cr, line))
{
currentPage = CreateNewPage(pageNumber++);
currentPage.TryAddLine(cr, line);
}
}
}
if (_renderOption == RenderOption.ScreenView)
{
//_displayHeightExtent = ((Y_DISPLAY_MARGIN + _paperHeight) * _pages.Count) + Y_DISPLAY_MARGIN;
_displayHeightExtent = ((Constants.Y_DISPLAY_MARGIN + _paperHeight) * _pages.Count) + Constants.Y_DISPLAY_MARGIN;
_displayWidthExtent = (Constants.X_DISPLAY_MARGIN * 2) + _paperWidth;
}
// Now update the total count for each page to render their header/footer information
foreach (PageNode page in _pages)
{
page.SetTotalPageCount(_pages.Count);
}
return(_pages.Count);
}