public WORD ID; // the ID
#region Methods
/// <summary>
/// Converts the current TAFactory.IconPack.GroupIconDirEntry into TAFactory.IconPack.IconDirEntry.
/// </summary>
/// <param name="id">The resource identifier.</param>
/// <returns>TAFactory.IconPack.IconDirEntry</returns>
public IconDirEntry ToIconDirEntry(int imageOffiset)
{
IconDirEntry entry = new IconDirEntry();
entry.Width = this.Width;
entry.Height = this.Height;
entry.ColorCount = this.ColorCount;
entry.Reserved = this.Reserved;
entry.Planes = this.Planes;
entry.BitCount = this.BitCount;
entry.BytesInRes = this.BytesInRes;
entry.ImageOffset = imageOffiset;
return entry;
}
public WORD ID; // the ID
/// <summary>
/// Converts the current TAFactory.IconPack.GroupIconDirEntry into TAFactory.IconPack.IconDirEntry.
/// </summary>
/// <param name="id">The resource identifier.</param>
/// <returns>TAFactory.IconPack.IconDirEntry</returns>
public IconDirEntry ToIconDirEntry(int imageOffiset)
{
IconDirEntry entry = new IconDirEntry();
entry.Width = this.Width;
entry.Height = this.Height;
entry.ColorCount = this.ColorCount;
entry.Reserved = this.Reserved;
entry.Planes = this.Planes;
entry.BitCount = this.BitCount;
entry.BytesInRes = this.BytesInRes;
entry.ImageOffset = imageOffiset;
return(entry);
}
/// <summary>
/// Merges a list of icons into one single icon.
/// </summary>
/// <param name="icons">The icons to be merged.</param>
/// <returns>System.Drawing.Icon that contains all the images of the givin icons.</returns>
public static Icon Merge(params Icon[] icons)
{
List <IconInfo> list = new List <IconInfo>(icons.Length);
int numImages = 0;
foreach (Icon icon in icons)
{
if (icon != null)
{
IconInfo info = new IconInfo(icon);
list.Add(info);
numImages += info.Images.Count;
}
}
if (list.Count == 0)
{
throw new ArgumentNullException("icons", "The icons list should contain at least one icon.");
}
//Write the icon to a stream.
MemoryStream outputStream = new MemoryStream();
int imageIndex = 0;
int imageOffset = IconInfo.SizeOfIconDir + numImages * IconInfo.SizeOfIconDirEntry;
for (int i = 0; i < list.Count; i++)
{
IconInfo iconInfo = list[i];
//The firs image, we should write the icon header.
if (i == 0)
{
//Get the IconDir and update image count with the new count.
IconDir dir = iconInfo.IconDir;
dir.Count = (short)numImages;
//Write the IconDir header.
outputStream.Seek(0, SeekOrigin.Begin);
Utility.WriteStructure <IconDir>(outputStream, dir);
}
//For each image in the current icon, we should write the IconDirEntry and the image raw data.
for (int j = 0; j < iconInfo.Images.Count; j++)
{
//Get the IconDirEntry and update the ImageOffset to the new offset.
IconDirEntry entry = iconInfo.IconDirEntries[j];
entry.ImageOffset = imageOffset;
//Write the IconDirEntry to the stream.
outputStream.Seek(IconInfo.SizeOfIconDir + imageIndex * IconInfo.SizeOfIconDirEntry, SeekOrigin.Begin);
Utility.WriteStructure <IconDirEntry>(outputStream, entry);
//Write the image raw data.
outputStream.Seek(imageOffset, SeekOrigin.Begin);
outputStream.Write(iconInfo.RawData[j], 0, entry.BytesInRes);
//Update the imageIndex and the imageOffset
imageIndex++;
imageOffset += entry.BytesInRes;
}
}
//Create the icon from the stream.
outputStream.Seek(0, SeekOrigin.Begin);
Icon resultIcon = new Icon(outputStream);
outputStream.Close();
return(resultIcon);
}
/// <summary>
/// Loads the icon information from the givin icon into class members.
/// </summary>
/// <param name="icon">A System.Drawing.Icon object to retrieve the information about.</param>
private void LoadIconInfo(Icon icon)
{
if (icon == null)
{
throw new ArgumentNullException("icon");
}
this.SourceIcon = icon;
MemoryStream inputStream = new MemoryStream();
this.SourceIcon.Save(inputStream);
inputStream.Seek(0, SeekOrigin.Begin);
IconDir dir = Utility.ReadStructure <IconDir>(inputStream);
this.IconDir = dir;
this.GroupIconDir = dir.ToGroupIconDir();
this.Images = new List <Icon>(dir.Count);
this.IconDirEntries = new List <IconDirEntry>(dir.Count);
this.GroupIconDirEntries = new List <GroupIconDirEntry>(dir.Count);
this.RawData = new List <byte[]>(dir.Count);
IconDir newDir = dir;
newDir.Count = 1;
for (int i = 0; i < dir.Count; i++)
{
inputStream.Seek(SizeOfIconDir + i * SizeOfIconDirEntry, SeekOrigin.Begin);
IconDirEntry entry = Utility.ReadStructure <IconDirEntry>(inputStream);
this.IconDirEntries.Add(entry);
this.GroupIconDirEntries.Add(entry.ToGroupIconDirEntry(i));
byte[] content = new byte[entry.BytesInRes];
inputStream.Seek(entry.ImageOffset, SeekOrigin.Begin);
inputStream.Read(content, 0, content.Length);
this.RawData.Add(content);
IconDirEntry newEntry = entry;
newEntry.ImageOffset = SizeOfIconDir + SizeOfIconDirEntry;
MemoryStream outputStream = new MemoryStream();
Utility.WriteStructure <IconDir>(outputStream, newDir);
Utility.WriteStructure <IconDirEntry>(outputStream, newEntry);
outputStream.Write(content, 0, content.Length);
outputStream.Seek(0, SeekOrigin.Begin);
Icon newIcon = new Icon(outputStream);
outputStream.Close();
this.Images.Add(newIcon);
if (dir.Count == 1)
{
this.BestFitIconIndex = 0;
this.Width = entry.Width;
this.Height = entry.Height;
this.ColorCount = entry.ColorCount;
this.Planes = entry.Planes;
this.BitCount = entry.BitCount;
}
}
inputStream.Close();
this.ResourceRawData = GetIconResourceData();
if (dir.Count > 1)
{
this.BestFitIconIndex = GetBestFitIconIndex();
this.Width = this.IconDirEntries[this.BestFitIconIndex].Width;
this.Height = this.IconDirEntries[this.BestFitIconIndex].Height;
this.ColorCount = this.IconDirEntries[this.BestFitIconIndex].ColorCount;
this.Planes = this.IconDirEntries[this.BestFitIconIndex].Planes;
this.BitCount = this.IconDirEntries[this.BestFitIconIndex].BitCount;
}
}