private void PerformOptimizations(string path, ImageSettings settings, TextWriter cssLowCompatOutput, List <string> imageLocations)
{
var spriteInfo = new SpriteInfoBuilder().Build(settings, imageLocations);
if (spriteInfo.Images.Count > 0)
{
GenerateSprite(path, settings, spriteInfo, cssLowCompatOutput);
}
}
private ImageSettings GetSettings(string path)
{
var settings = new ImageSettings();
string settingFileLocation = Path.Combine(path, SettingsFileName);
if (!File.Exists(settingFileLocation))
{
return(settings);
}
XmlTextReader settingsData;
// Open the settings file. If it fails here, we throw an exception since we expect the file to be there and readable.
using (settingsData = new XmlTextReader(settingFileLocation))
{
while (settingsData.Read())
{
if (settingsData.NodeType == XmlNodeType.Element)
{
string nodeName = settingsData.Name;
if (nodeName.Equals("FileFormat", StringComparison.OrdinalIgnoreCase))
{
settings.Format = settingsData.ReadElementContentAsString().Trim('.');
}
else if (nodeName.Equals("Quality", StringComparison.OrdinalIgnoreCase))
{
settings.Quality = settingsData.ReadElementContentAsInt();
}
else if (nodeName.Equals("MaxSize", StringComparison.OrdinalIgnoreCase))
{
settings.MaxSize = settingsData.ReadElementContentAsInt();
}
else if (nodeName.Equals("BackgroundColor", StringComparison.OrdinalIgnoreCase))
{
string output = settingsData.ReadElementContentAsString();
int temp = Int32.Parse(output, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
settings.BackgroundColor = Color.FromArgb(temp);
}
else if (nodeName.Equals("Base64Encoding", StringComparison.OrdinalIgnoreCase))
{
settings.Base64 = settingsData.ReadElementContentAsBoolean();
}
else if (nodeName.Equals("TileInXAxis", StringComparison.OrdinalIgnoreCase))
{
settings.TileInXAxis = settingsData.ReadElementContentAsBoolean();
}
}
}
}
return(settings);
}
private void GenerateSprite(string path, ImageSettings settings, SpriteInfo spriteInfo, TextWriter cssLowCompatOutput)
{
using (Bitmap sprite = new Bitmap(spriteInfo.Width, spriteInfo.Height))
{
using (Graphics drawingSurface = Graphics.FromImage(sprite))
{
// Set the background to the specs from the settings file
drawingSurface.Clear(settings.BackgroundColor);
// Make the final sprite and save it
foreach (var image in spriteInfo.Images)
{
drawingSurface.DrawImage(image.Bitmap, new Rectangle(image.Position.XOffset, image.Position.YOffset, image.Bitmap.Width, image.Bitmap.Height));
// Add the CSS data
GenerateCss(image, settings.Format, cssLowCompatOutput);
var hoverImage = image.HoverImage;
if (hoverImage != null)
{
drawingSurface.DrawImage(hoverImage.Bitmap, new Rectangle(hoverImage.Position.XOffset, hoverImage.Position.YOffset, hoverImage.Bitmap.Width, hoverImage.Bitmap.Height));
}
}
// Set the encoder parameters and make the image
try
{
using (EncoderParameters spriteEncoderParameters = new EncoderParameters(1))
{
spriteEncoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, settings.Quality);
// Attempt to save the image to disk with the specified encoder
sprite.Save(Path.Combine(path, GenerateSpriteFileName(settings.Format)), GetEncoderInfo(settings.Format), spriteEncoderParameters);
}
}
catch (Exception)
{
// If errors occur, get the CLI to auto-choose an encoder. Unfortunately this means that the quality settings will be not used.
try
{
sprite.Save(Path.Combine(path, GenerateSpriteFileName(settings.Format)));
}
catch (Exception)
{
// If errors occur again, try to save as a png
sprite.Save(Path.Combine(path, GenerateSpriteFileName("png")));
}
}
}
}
}
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);
}
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 PerformOptimizations(string path, ImageSettings settings, TextWriter cssLowCompatOutput, List<string> imageLocations)
{
var spriteInfo = new SpriteInfoBuilder().Build(settings, imageLocations);
if (spriteInfo.Images.Count > 0)
{
GenerateSprite(path, settings, spriteInfo, cssLowCompatOutput);
}
}
private ImageSettings GetSettings(string path)
{
var settings = new ImageSettings();
string settingFileLocation = Path.Combine(path, SettingsFileName);
if (!File.Exists(settingFileLocation))
{
return settings;
}
XmlTextReader settingsData;
// Open the settings file. If it fails here, we throw an exception since we expect the file to be there and readable.
using (settingsData = new XmlTextReader(settingFileLocation))
{
while (settingsData.Read())
{
if (settingsData.NodeType == XmlNodeType.Element)
{
string nodeName = settingsData.Name;
if (nodeName.Equals("FileFormat", StringComparison.OrdinalIgnoreCase))
{
settings.Format = settingsData.ReadElementContentAsString().Trim('.');
}
else if (nodeName.Equals("Quality", StringComparison.OrdinalIgnoreCase))
{
settings.Quality = settingsData.ReadElementContentAsInt();
}
else if (nodeName.Equals("MaxSize", StringComparison.OrdinalIgnoreCase))
{
settings.MaxSize = settingsData.ReadElementContentAsInt();
}
else if (nodeName.Equals("BackgroundColor", StringComparison.OrdinalIgnoreCase))
{
string output = settingsData.ReadElementContentAsString();
int temp = Int32.Parse(output, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
settings.BackgroundColor = Color.FromArgb(temp);
}
else if (nodeName.Equals("Base64Encoding", StringComparison.OrdinalIgnoreCase))
{
settings.Base64 = settingsData.ReadElementContentAsBoolean();
}
else if (nodeName.Equals("TileInXAxis", StringComparison.OrdinalIgnoreCase))
{
settings.TileInXAxis = settingsData.ReadElementContentAsBoolean();
}
}
}
}
return settings;
}
private void GenerateSprite(string path, ImageSettings settings, SpriteInfo spriteInfo, TextWriter cssLowCompatOutput)
{
using (Bitmap sprite = new Bitmap(spriteInfo.Width, spriteInfo.Height))
{
using (Graphics drawingSurface = Graphics.FromImage(sprite))
{
// Set the background to the specs from the settings file
drawingSurface.Clear(settings.BackgroundColor);
// Make the final sprite and save it
foreach (var image in spriteInfo.Images)
{
drawingSurface.DrawImage(image.Bitmap, new Rectangle(image.Position.XOffset, image.Position.YOffset, image.Bitmap.Width, image.Bitmap.Height));
// Add the CSS data
GenerateCss(image, settings.Format, cssLowCompatOutput);
var hoverImage = image.HoverImage;
if (hoverImage != null)
{
drawingSurface.DrawImage(hoverImage.Bitmap, new Rectangle(hoverImage.Position.XOffset, hoverImage.Position.YOffset, hoverImage.Bitmap.Width, hoverImage.Bitmap.Height));
}
}
// Set the encoder parameters and make the image
try
{
using (EncoderParameters spriteEncoderParameters = new EncoderParameters(1))
{
spriteEncoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, settings.Quality);
// Attempt to save the image to disk with the specified encoder
sprite.Save(Path.Combine(path, GenerateSpriteFileName(settings.Format)), GetEncoderInfo(settings.Format), spriteEncoderParameters);
}
}
catch (Exception)
{
// If errors occur, get the CLI to auto-choose an encoder. Unfortunately this means that the quality settings will be not used.
try
{
sprite.Save(Path.Combine(path, GenerateSpriteFileName(settings.Format)));
}
catch (Exception)
{
// If errors occur again, try to save as a png
sprite.Save(Path.Combine(path, GenerateSpriteFileName("png")));
}
}
}
}
}
