private void SetOffsets(Match offsetMatch)
{
var offset1 = offsetMatch.Groups["offset1"].Value;
var offset2 = offsetMatch.Groups["offset2"].Value;
var flip = false;
if (offset1.ToLower() == "top" || offset1.ToLower() == "bottom" || offset2.ToLower() == "right" || offset2.ToLower() == "left")
flip = true;
var offset1Position = ",top,bottom,right,left,center".IndexOf(offset1.ToLower()) > 0
? ParseStringOffset(offset1)
: ParseNumericOffset(offset1);
var offset2Position = ",top,bottom,right,left,center".IndexOf(offset2.ToLower()) > 0
? ParseStringOffset(offset2)
: ParseNumericOffset(offset2);
if (flip)
{
if(offset2Position.PositionMode != PositionMode.Percent || offset2Position.Offset > 0) XOffset = offset2Position;
if(offset1Position.PositionMode != PositionMode.Percent || offset1Position.Offset > 0) YOffset = offset1Position;
}
else
{
if(offset1Position.PositionMode != PositionMode.Percent || offset1Position.Offset > 0) XOffset = offset1Position;
if(offset2Position.PositionMode != PositionMode.Percent || offset2Position.Offset > 0) YOffset = offset2Position;
}
}
private Position ParseStringOffset(string offsetString)
{
var offset = new Position {PositionMode = PositionMode.Direction};
Direction direction;
Enum.TryParse(offsetString, true, out direction);
offset.Direction = direction;
return offset;
}
public BackgroundImageClass(string originalClassString, string parentCssUrl)
{
var offsetExplicitelySet = new bool[2];
OriginalClassString = originalClassString;
var match = Regex.ImageUrlPattern.Match(originalClassString);
if (match.Success)
{
OriginalImageUrl = match.Groups["url"].Value.Replace("'", "").Replace("\"", "").Trim();
if (OriginalImageUrl.Length > 0)
{
ImageUrl = RelativeToAbsoluteUtility.ToAbsolute(parentCssUrl, OriginalImageUrl);
OriginalClassString = OriginalClassString.Replace(OriginalImageUrl, ImageUrl);
}
}
var repeatMatch = Regex.RepeatPattern.Matches(originalClassString);
if(repeatMatch.Count > 0)
{
Repeat = (RepeatStyle) Enum.Parse(typeof(RepeatStyle), repeatMatch[repeatMatch.Count-1].Value.Replace("-",""), true);
}
var widthMatch = Regex.WidthPattern.Matches(originalClassString);
if (widthMatch.Count > 0)
Width = Int32.Parse(widthMatch[widthMatch.Count - 1].Groups["width"].Value);
var heightMatch = Regex.HeightPattern.Matches(originalClassString);
if (heightMatch.Count > 0)
Height = Int32.Parse(heightMatch[heightMatch.Count - 1].Groups["height"].Value);
if(Width != null || Height != null)
{
var paddingMatches = Regex.PaddingPattern.Matches(originalClassString);
if (paddingMatches.Count > 0)
{
var padVals = new int[4];
foreach (var pads in from Match paddingMatch in paddingMatches select GetPadding(paddingMatch))
{
if (pads[0] != null)
padVals[0] = (int)pads[0];
if (pads[1] != null)
padVals[1] = (int)pads[1];
if (pads[2] != null)
padVals[2] = (int)pads[2];
if (pads[3] != null)
padVals[3] = (int)pads[3];
}
if(Width != null)
{
if (padVals[1] < 0 || padVals[3] < 0)
Width = null;
else
Width += (padVals[1] + padVals[3]);
}
if (Height != null)
{
if (padVals[0] < 0 || padVals[2] < 0)
Height = null;
else
Height += (padVals[0] + padVals[2]);
}
}
}
var offsetMatches = Regex.OffsetPattern.Matches(originalClassString);
if (offsetMatches.Count > 0)
{
foreach (Match offsetMatch in offsetMatches)
SetOffsets(offsetMatch, offsetExplicitelySet);
}
if(XOffset.PositionMode == PositionMode.Direction && !offsetExplicitelySet[1])
YOffset = new Position(){PositionMode = PositionMode.Direction};
if (YOffset.PositionMode == PositionMode.Direction && !offsetExplicitelySet[0])
XOffset = new Position() { PositionMode = PositionMode.Direction };
}
private Position ParseNumericOffset(string offsetString)
{
var offset = new Position();
if (string.IsNullOrEmpty(offsetString))
return offset;
if (offsetString.Length > 2 && "|in|cm|mm|em|ex|pt|pc".IndexOf(offsetString.Substring(offsetString.Length-2,2).ToLower()) > -1)
return offset;
var trim = 0;
if (offsetString.EndsWith("%"))
{
trim = 1;
offset.PositionMode = PositionMode.Percent;
}
else
offset.PositionMode = PositionMode.Unit;
if (offsetString.ToLower().EndsWith("px"))
trim = 2;
int units;
Int32.TryParse(offsetString.Substring(0, offsetString.Length - trim), out units);
offset.Offset = units;
return offset;
}
private void SetOffsets(Match offsetMatch, bool[] offsetExplicitelySet)
{
var offset1 = offsetMatch.Groups["offset1"].Value;
var offset2 = offsetMatch.Groups["offset2"].Value;
var flip = false;
if (offset1.ToLower() == "top" || offset1.ToLower() == "bottom" || offset2.ToLower() == "right" || offset2.ToLower() == "left")
flip = true;
var offset1Position = ",top,bottom,right,left,center".IndexOf(offset1.ToLower()) > 0
? ParseStringOffset(offset1)
: ParseNumericOffset(offset1);
var offset2Position = ",top,bottom,right,left,center".IndexOf(offset2.ToLower()) > 0
? ParseStringOffset(offset2)
: ParseNumericOffset(offset2);
if (flip)
{
if(offset2Position.PositionMode != PositionMode.Percent || offset2Position.Offset > 0) XOffset = offset2Position;
if(offset1Position.PositionMode != PositionMode.Percent || offset1Position.Offset > 0) YOffset = offset1Position;
if (offset1.Length > 0) offsetExplicitelySet[1] = true;
if (offset2.Length > 0) offsetExplicitelySet[0] = true;
}
else
{
if(offset1Position.PositionMode != PositionMode.Percent || offset1Position.Offset > 0) XOffset = offset1Position;
if(offset2Position.PositionMode != PositionMode.Percent || offset2Position.Offset > 0) YOffset = offset2Position;
if (offset1.Length > 0) offsetExplicitelySet[0] = true;
if (offset2.Length > 0) offsetExplicitelySet[1] = true;
}
Important = offsetMatch.ToString().ToLower().Contains("!important");
}
