/// <summary>
/// Creates the files to build a shadow arround a picture.
/// </summary>
/// <param name="imgCfg">the shadow configuration of the picture</param>
/// <param name="path">the directory where the files should be located</param>
public void CreateShadowParts(ImageBrowserConfig.ImageCfg imgCfg, String path)
{
// Values for building Shadow.
Int32 shadowwidth = imgCfg.ShadowWidth;
Int32 margin = shadowwidth / 2;
// background
LayeredImage image = new LayeredImage(shadowwidth * 2 + margin + 1, shadowwidth * 2 + margin + 1);
Layer bg = image.Layers.Add();
bg.Clear(Color.FromArgb(imgCfg.BackgroundColor));
// shadow -- layer must be larger because of blur
Layer shadow = image.Layers.Add(shadowwidth * 2 + margin, shadowwidth * 2 + margin);
SolidBrush brush = new SolidBrush(Color.FromArgb(imgCfg.ShadowColor));
shadow.FillRectangle(margin, margin, shadowwidth + margin + 1, shadowwidth + margin + 1, brush);
if (imgCfg.SoftShadow)
shadow.Blur(margin * 2, margin * 2);
brush.Dispose();
shadow.Opacity = 1.0 - imgCfg.ShadowTransparency;
// Result with all the parts.
FastBitmap totalResult = image.Flatten();
// Create Directory if necessary.
if ( ! Directory.Exists(path))
Directory.CreateDirectory(path);
// Save Shadow into splittet files.
// Top-right.
FastBitmap imgTR = new FastBitmap(shadowwidth, shadowwidth, PixelFormat.Format32bppArgb);
totalResult.CopyTo (imgTR, 0, 0, margin + shadowwidth + 1, 0, shadowwidth, shadowwidth);
imgTR.Save(path + "/tr.jpg", ImageFormat.Jpeg);
// Right.
FastBitmap imgR = new FastBitmap(shadowwidth, 1, PixelFormat.Format32bppArgb);
totalResult.CopyTo (imgR, 0, 0, margin + shadowwidth + 1, margin + shadowwidth, shadowwidth, 1);
imgR.Save(path + "/r.jpg", ImageFormat.Jpeg);
// Bottom-right.
FastBitmap imgBR = new FastBitmap(shadowwidth, shadowwidth, PixelFormat.Format32bppArgb);
totalResult.CopyTo(imgBR, 0, 0, margin + shadowwidth + 1, margin + shadowwidth + 1, shadowwidth, shadowwidth);
imgBR.Save(path + "/br.jpg", ImageFormat.Jpeg);
// Bottom.
FastBitmap imgB = new FastBitmap(1, shadowwidth, PixelFormat.Format32bppArgb);
totalResult.CopyTo (imgB, 0, 0, margin + shadowwidth, margin + shadowwidth + 1, 1, shadowwidth);
imgB.Save(path + "/b.jpg", ImageFormat.Jpeg);
// Bottom-left.
FastBitmap imgBL = new FastBitmap(shadowwidth, shadowwidth, PixelFormat.Format32bppArgb);
totalResult.CopyTo(imgBL, 0, 0, 0, margin + shadowwidth + 1, shadowwidth, shadowwidth);
imgBL.Save(path + "/bl.jpg", ImageFormat.Jpeg);
}
/// <summary>
/// Creates a new image of the specified size from the source image
/// </summary>
/// <param name="src">Source image path</param>
/// <param name="dest">Destination image path</param>
/// <param name="imgCfg">The configuration of the image</param>
/// <param name="forceUpdate">Update in every case</param>
/// <param name="jpegQuality">The Quality for the JPEG File 0..100</param>
public void CreateShadowedImage(string src, string dest, ImageBrowserConfig.ImageCfg imgCfg, bool forceUpdate, byte jpegQuality)
{
try
{
if (!forceUpdate && File.Exists(cfg.PictureRootDirectory + "/" + dest) )
return;
string path = Directory.GetParent(cfg.PictureRootDirectory + "/" + dest).FullName;
if ( ! Directory.Exists(path))
Directory.CreateDirectory(path);
// Values for building Shadow.
Int32 shadowwidth = imgCfg.ShadowWidth;
Int32 borderwidth = imgCfg.BorderWidth;
Int32 margin = shadowwidth / 2;
Int32 shadowdir = 0;
Double shadowtrans = imgCfg.ShadowTransparency;
Color bkcolor = Color.FromArgb(imgCfg.BackgroundColor);
Color shadowcolor = Color.FromArgb(imgCfg.ShadowColor);
Color bordercolor = Color.FromArgb(imgCfg.BorderColor);
Boolean softshadow = imgCfg.SoftShadow;
Image thumb = CreateImageInternal(src, imgCfg.MaxSize);
if(thumb != null)
{
FastBitmap tmp = new FastBitmap(thumb);
FastBitmap bmp = new FastBitmap(tmp.Width + borderwidth * 2, tmp.Height + borderwidth * 2,
PixelFormat.Format32bppArgb);
// add border if necessary
if (borderwidth > 0)
{
using(SolidBrush br = new SolidBrush(bordercolor))
using (Graphics g = Graphics.FromImage(bmp._bitmap))
{
g.FillRectangle(br, 0, 0, borderwidth * 2 + tmp.Width, borderwidth * 2 + tmp.Height);
}
}
tmp.CopyTo(bmp, borderwidth, borderwidth, 0, 0, tmp.Width, tmp.Height);
tmp.Dispose();
// create image
Int32 width = bmp.Width + shadowwidth + margin * 2;
Int32 height = bmp.Height + shadowwidth + margin * 2;
LayeredImage image = new LayeredImage(width, height);
Int32 shadowx = 0, shadowy = 0, imgx = 0, imgy = 0;
if (softshadow)
{
switch (shadowdir)
{
case 0:
shadowx = margin - shadowwidth / 2;
shadowy = margin - shadowwidth / 2;
imgx = margin;
imgy = margin;
break;
case 1:
shadowx = margin + shadowwidth - 3 * (shadowwidth / 2);
shadowy = margin - shadowwidth / 2;
imgx = margin + shadowwidth;
imgy = margin;
break;
case 2:
shadowx = margin + shadowwidth - 3 * (shadowwidth / 2);
shadowy = margin + shadowwidth - 3 * (shadowwidth / 2);
imgx = margin + shadowwidth;
imgy = margin + shadowwidth;
break;
case 3:
shadowx = margin - shadowwidth / 2;
shadowy = margin + shadowwidth - 3 * (shadowwidth / 2);
imgx = margin;
imgy = margin + shadowwidth;
break;
}
}
else
{
switch (shadowdir)
{
case 0:
shadowx = margin;
shadowy = margin;
imgx = margin;
imgy = margin;
break;
case 1:
shadowx = margin - shadowwidth;
shadowy = margin;
imgx = margin + shadowwidth;
imgy = margin;
break;
case 2:
shadowx = margin - shadowwidth;
shadowy = margin - shadowwidth;
imgx = margin + shadowwidth;
imgy = margin + shadowwidth;
break;
case 3:
shadowx = margin;
shadowy = margin - shadowwidth;
imgx = margin;
imgy = margin + shadowwidth;
break;
}
}
// background
Layer bg = image.Layers.Add();
bg.Clear(bkcolor);
// shadow -- layer must be larger because of blur
Layer shadow = image.Layers.Add(width + shadowwidth, height + shadowwidth);
SolidBrush brush = new SolidBrush(shadowcolor);
shadow.FillRectangle(shadowwidth, shadowwidth, bmp.Width, bmp.Height, brush);
if (softshadow)
shadow.Blur(shadowwidth, shadowwidth);
brush.Dispose();
shadow.OffsetX = shadowx;
shadow.OffsetY = shadowy;
shadow.Opacity = 1.0 - shadowtrans;
// image
Layer img = image.Layers.Add(bmp);
img.OffsetX = imgx;
img.OffsetY = imgy;
// result
FastBitmap result = image.Flatten();
EncoderParameters encParams = new EncoderParameters(1);
encParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long) jpegQuality);
result.Save(cfg.PictureRootDirectory + "/" + dest, GetEncoder(ImageFormat.Jpeg), encParams);
result.Dispose();
}
}
catch(Exception){}
}