void LoadIcon(Stream stream)
{
BinaryReader r = new BinaryReader(stream);
if (r.ReadUInt16() != 0)
{
throw new InvalidIconException("This is not a valid .ico file.");
}
ushort type = r.ReadUInt16();
if (type == 1)
{
isCursor = false;
}
else if (type == 2)
{
isCursor = true;
}
else
{
throw new InvalidIconException("This is not a valid .ico file.");
}
IconEntry[] icons = new IconEntry[r.ReadUInt16()];
for (int i = 0; i < icons.Length; i++)
{
icons[i] = new IconEntry();
icons[i].ReadHeader(r, isCursor, ref wellFormed);
}
for (int i = 0; i < icons.Length; i++)
{
icons[i].ReadData(stream, ref wellFormed);
}
// need to use List<T> so that the collection can be resized
this.icons = new Collection <IconEntry>(new List <IconEntry>(icons));
}
/// <summary>
/// Gets the icon entry with the specified width and height.
/// </summary>
/// <param name="size">Width and height of the entry to get.</param>
/// <param name="bestSupported">The "best" entry type allowed to get.
/// Use Compressed to get all entries; TrueColor to get all except
/// the Vista-only compressed entries; and Classic to get only the
/// classic icons that run on all Windows versions.
/// </param>
/// <returns>Gets the entry matching the size. If multiple supported
/// entries are available, the only with the highest color depth is returned.
/// If no matching entry is found, null is returned.</returns>
public IconEntry GetEntry(Size size, IconEntryType bestSupported)
{
IconEntry best = null;
foreach (IconEntry e in this.Icons)
{
if (e.Size == size && e.Type <= bestSupported)
{
if (best == null || best.ColorDepth < e.ColorDepth)
{
best = e;
}
}
}
return(best);
}
/// <summary>
/// Adds the specified entry
/// </summary>
public void AddEntry(IconEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException("entry");
}
// replace matching existing entry:
for (int i = 0; i < icons.Count; i++)
{
if (icons[i].Width == entry.Width && icons[i].Height == entry.Height && icons[i].ColorDepth == entry.ColorDepth)
{
icons[i] = entry;
return;
}
}
icons.Add(entry);
}
void SetImage(Bitmap newBitmap)
{
// scale to correct size and make it ARGB
if (iconSize != newBitmap.Size)
{
int r = MessageService.ShowCustomDialog(
"Import Image",
string.Format("The image has size {0}x{1}, but size {2}x{3} is expected.", newBitmap.Width, newBitmap.Height, iconSize.Width, iconSize.Height),
0, 1, "Convert", "Cancel");
if (r != 0)
{
return;
}
}
bool?compress = entry != null ? entry.IsCompressed : (bool?)null;
this.Entry = new IconEntry(iconSize.Width, iconSize.Height, colorDepth, newBitmap, compress);
EntryChanged(this, EventArgs.Empty);
}
void AddFormatButtonClick(object sender, EventArgs e)
{
if (activeIconFile == null)
{
return;
}
using (PickFormatDialog dlg = new PickFormatDialog()) {
if (dlg.ShowDialog() == DialogResult.OK)
{
int width = dlg.IconWidth;
int height = dlg.IconHeight;
int colorDepth = dlg.ColorDepth;
var sameSizeEntries = activeIconFile.Icons.Where(entry => entry.Width == width && entry.Height == height);
if (sameSizeEntries.Any(entry => entry.ColorDepth == colorDepth))
{
MessageService.ShowMessage("This icon already contains an image with the specified format.", "Icon Editor");
return;
}
IconEntry sourceEntry = sameSizeEntries.OrderByDescending(entry => entry.ColorDepth).FirstOrDefault();
if (sourceEntry == null)
{
sourceEntry = (from entry in activeIconFile.Icons
orderby entry.Width descending, entry.Height descending, entry.ColorDepth descending
select entry).FirstOrDefault();
}
// sourceEntry can still be null if the icon is completely empty
Bitmap sourceBitmap = sourceEntry != null?sourceEntry.ExportArgbBitmap() : new Bitmap(width, height);
activeIconFile.AddEntry(new IconEntry(width, height, colorDepth, sourceBitmap));
if (IconWasEdited != null)
{
IconWasEdited(this, e);
}
ShowFile(activeIconFile);
}
}
}
void CompressedToolStripMenuItemClick(object sender, EventArgs e)
{
// Toggle compression
this.Entry = new IconEntry(iconSize.Width, iconSize.Height, colorDepth, entry.ExportArgbBitmap(), !entry.IsCompressed);
EntryChanged(this, EventArgs.Empty);
}
void DeleteToolStripMenuItemClick(object sender, EventArgs e)
{
this.Entry = null;
EntryChanged(this, e);
}
void SetImage(Bitmap newBitmap)
{
// scale to correct size and make it ARGB
if (iconSize != newBitmap.Size) {
int r = MessageService.ShowCustomDialog(
"Import Image",
string.Format("The image has size {0}x{1}, but size {2}x{3} is expected.", newBitmap.Width, newBitmap.Height, iconSize.Width, iconSize.Height),
0, 1, "Convert", "Cancel");
if (r != 0) {
return;
}
}
bool? compress = entry != null ? entry.IsCompressed : (bool?)null;
this.Entry = new IconEntry(iconSize.Width, iconSize.Height, colorDepth, newBitmap, compress);
EntryChanged(this, EventArgs.Empty);
}
void CompressedToolStripMenuItemClick(object sender, EventArgs e)
{
// Toggle compression
this.Entry = new IconEntry(iconSize.Width, iconSize.Height, colorDepth, entry.ExportArgbBitmap(), !entry.IsCompressed);
EntryChanged(this, EventArgs.Empty);
}
void DeleteToolStripMenuItemClick(object sender, EventArgs e)
{
this.Entry = null;
EntryChanged(this, e);
}
/// <summary>
/// Adds the specified entry
/// </summary>
public void AddEntry(IconEntry entry)
{
if (entry == null)
throw new ArgumentNullException("entry");
// replace matching existing entry:
for (int i = 0; i < icons.Count; i++) {
if (icons[i].Width == entry.Width && icons[i].Height == entry.Height && icons[i].ColorDepth == entry.ColorDepth) {
icons[i] = entry;
return;
}
}
icons.Add(entry);
}
void LoadIcon(Stream stream)
{
BinaryReader r = new BinaryReader(stream);
if (r.ReadUInt16() != 0)
throw new InvalidIconException("This is not a valid .ico file.");
ushort type = r.ReadUInt16();
if (type == 1)
isCursor = false;
else if (type == 2)
isCursor = true;
else
throw new InvalidIconException("This is not a valid .ico file.");
IconEntry[] icons = new IconEntry[r.ReadUInt16()];
for (int i = 0; i < icons.Length; i++) {
icons[i] = new IconEntry();
icons[i].ReadHeader(r, isCursor, ref wellFormed);
}
for (int i = 0; i < icons.Length; i++) {
icons[i].ReadData(stream, ref wellFormed);
}
// need to use List<T> so that the collection can be resized
this.icons = new Collection<IconEntry>(new List<IconEntry>(icons));
}