public RenderedText(string text, int maxWidth = DefaultRenderedTextWidth)
{
m_ResourceProvider = ServiceRegistry.GetService<IUIResourceProvider>();
Text = text;
MaxWidth = maxWidth;
Regions = new Regions();
Images = new Images();
}
void getHREFRegions(Regions regions, List<AAtom>[] text, int[] x, int y)
{
for (int alignment = 0; alignment < 3; alignment++)
{
// variables for the open href region
bool isRegionOpen = false;
Region region = null;
int regionHeight = 0;
int additionalwidth = 0;
int dx = x[alignment];
for (int i = 0; i < text[alignment].Count; i++)
{
AAtom atom = text[alignment][i];
if ((region == null && atom.Style.HREF != null) ||
(region != null && atom.Style.HREF != region.HREF))
{
// close the current href tag if one is open.
if (isRegionOpen)
{
region.Area.Width = (dx - region.Area.X) + additionalwidth;
region.Area.Height = (y + regionHeight - region.Area.Y);
isRegionOpen = false;
region = null;
}
// did we open a href?
if (atom.Style.HREF != null)
{
isRegionOpen = true;
region = regions.AddRegion(atom.Style.HREF);
region.Area.X = dx;
region.Area.Y = y;
regionHeight = 0;
}
}
if (atom is ImageAtom)
{
// we need regions for images so that we can do mouse over images.
// if we're currently in an open href region, we'll use that one.
// if we don't have an open region, we'll create one just for this image.
Image image = ((ImageAtom)atom).AssociatedImage;
if (image != null)
{
if (!isRegionOpen)
{
region = regions.AddRegion(atom.Style.HREF);
isRegionOpen = true;
region.Area.X = dx;
region.Area.Y = y;
regionHeight = 0;
}
image.RegionIndex = region.Index;
}
}
dx += atom.Width;
if (atom is CharacterAtom && ((CharacterAtom)atom).Style.IsItalic)
additionalwidth = 2;
else if (atom is CharacterAtom && ((CharacterAtom)atom).Style.IsOutlined)
additionalwidth = 2;
else
additionalwidth = 0;
if (isRegionOpen && atom.Height > regionHeight)
regionHeight = atom.Height;
}
// we've reached the last atom in this set.
// if a href tag is still open, close it.
if (isRegionOpen)
{
region.Area.Width = (dx - region.Area.X);
region.Area.Height = (y + regionHeight - region.Area.Y);
}
}
}