public SpriteInfo Build(ImageSettings settings, List<string> imageLocations)
{
_spriteInfo = new SpriteInfo();
_settings = settings;
var imagePairs = new HoverGenerator().Generate(imageLocations);
int totalImages = 0;
foreach (var imagePath in imagePairs)
{
var imageInfo = new ImageInfo
{
FileName = imagePath.Key,
Bitmap = new Bitmap(imagePath.Key),
};
UpdateSizes(imageInfo);
totalImages++;
var hoverPath = imagePath.Value;
if (hoverPath != null)
{
var hoverInfo = new ImageInfo
{
FileName = hoverPath,
Bitmap = new Bitmap(hoverPath)
};
UpdateSizes(hoverInfo);
totalImages++;
imageInfo.HoverImage = hoverInfo;
}
_spriteInfo.Images.Add(imageInfo);
}
// Create a drawing surface and add the images to it
// Since we'll be padding each image by 1px later on, we need to increase the sprites's size correspondingly.
if (settings.TileInXAxis)
{
_spriteInfo.Width += totalImages;
}
else
{
_spriteInfo.Height += totalImages;
}
return _spriteInfo;
}
private void UpdateSizes(ImageInfo imageInfo)
{
var bitmap = imageInfo.Bitmap;
imageInfo.Position = new Position(_xOffset, _yOffset);
// Find the total pixel size of the sprite based on the tiling direction
if (_settings.TileInXAxis)
{
_spriteInfo.Width += bitmap.Width;
if (_spriteInfo.Height < bitmap.Height)
{
_spriteInfo.Height = bitmap.Height;
}
_xOffset += bitmap.Width + 1;
}
else
{
_spriteInfo.Height += bitmap.Height;
if (_spriteInfo.Width < bitmap.Width)
{
_spriteInfo.Width = bitmap.Width;
}
_yOffset += bitmap.Height + 1;
}
}
private void GenerateCss(ImageInfo imageInfo, string fileExtension, TextWriter cssOutput)
{
var funcParams = string.Format("(@backgroundRepeat: no-repeat, @width: {0}px, @height: {1}px)",
imageInfo.Bitmap.Width.ToString(CultureInfo.InvariantCulture),
imageInfo.Bitmap.Height.ToString(CultureInfo.InvariantCulture));
cssOutput.WriteLine("." + MakeCssSelector(imageInfo.FileName) + funcParams);
cssOutput.WriteLine("{");
cssOutput.WriteLine(Indent + "width: @width;");
cssOutput.WriteLine(Indent + "height: @height;");
GenerateCssBackgroundLow(Indent, cssOutput, fileExtension, imageInfo.Position.XOffset, imageInfo.Position.YOffset);
cssOutput.WriteLine(Indent + "background-repeat: @backgroundRepeat;");
var hoverImage = imageInfo.HoverImage;
if (hoverImage != null)
{
cssOutput.WriteLine(Indent + "&:hover");
cssOutput.WriteLine(Indent + "{");
string xPosition = GetOffsetPosition(hoverImage.Position.XOffset);
string yPosition = GetOffsetPosition(hoverImage.Position.YOffset);
cssOutput.WriteLine(IndentHover + "background-position: " + xPosition + "px " + yPosition + "px;");
cssOutput.WriteLine(Indent + "}");
}
cssOutput.WriteLine("}");
}
