private void RemoveImageImpl(Image image, int id, int width, int height)
{
MediaEntry cur = Head;
MediaEntry prev = null;
while (cur != null)
{
MediaEntry next = cur.Next;
if (cur.ID == id && cur is ImageMediaEntry && ((ImageMediaEntry)cur).Matches(image, width, height))
{
if (prev == null)
{
Head = next;
}
else
{
prev.Next = next;
}
cur.Cancel();
}
else
{
prev = cur;
}
cur = next;
}
}
/// <summary>
/// Returns a list of media with the specified ID that
/// have encountered an error. </summary>
/// <param name="id"> the identifier of the images to check </param>
/// <returns> an array of media objects tracked by this media
/// tracker with the specified identifier
/// that have encountered an error, or
/// <code>null</code> if there are none with errors </returns>
/// <seealso cref= java.awt.MediaTracker#isErrorID </seealso>
/// <seealso cref= java.awt.MediaTracker#isErrorAny </seealso>
/// <seealso cref= java.awt.MediaTracker#getErrorsAny </seealso>
public virtual Object[] GetErrorsID(int id)
{
lock (this)
{
MediaEntry cur = Head;
int numerrors = 0;
while (cur != null)
{
if (cur.ID == id && (cur.GetStatus(false, true) & ERRORED) != 0)
{
numerrors++;
}
cur = cur.Next;
}
if (numerrors == 0)
{
return(null);
}
Object[] errors = new Object[numerrors];
cur = Head;
numerrors = 0;
while (cur != null)
{
if (cur.ID == id && (cur.GetStatus(false, false) & ERRORED) != 0)
{
errors[numerrors++] = cur.Media;
}
cur = cur.Next;
}
return(errors);
}
}
private void RemoveImageImpl(Image image, int id)
{
MediaEntry cur = Head;
MediaEntry prev = null;
while (cur != null)
{
MediaEntry next = cur.Next;
if (cur.ID == id && cur.Media == image)
{
if (prev == null)
{
Head = next;
}
else
{
prev.Next = next;
}
cur.Cancel();
}
else
{
prev = cur;
}
cur = next;
}
}
internal static MediaEntry Insert(MediaEntry head, MediaEntry me)
{
MediaEntry cur = head;
MediaEntry prev = null;
while (cur != null)
{
if (cur.ID_Renamed > me.ID_Renamed)
{
break;
}
prev = cur;
cur = cur.Next;
}
me.Next = cur;
if (prev == null)
{
head = me;
}
else
{
prev.Next = me;
}
return(head);
}
private int StatusAll(bool load, bool verify)
{
lock (this)
{
MediaEntry cur = Head;
int status = 0;
while (cur != null)
{
status = status | cur.GetStatus(load, verify);
cur = cur.Next;
}
return(status);
}
}
/// <summary>
/// Checks the error status of all of the images tracked by this
/// media tracker with the specified identifier. </summary>
/// <param name="id"> the identifier of the images to check </param>
/// <returns> <code>true</code> if any of the images with the
/// specified identifier had an error during
/// loading; <code>false</code> otherwise </returns>
/// <seealso cref= java.awt.MediaTracker#isErrorAny </seealso>
/// <seealso cref= java.awt.MediaTracker#getErrorsID </seealso>
public virtual bool IsErrorID(int id)
{
lock (this)
{
MediaEntry cur = Head;
while (cur != null)
{
if (cur.ID == id && (cur.GetStatus(false, true) & ERRORED) != 0)
{
return(true);
}
cur = cur.Next;
}
return(false);
}
}
private bool CheckID(int id, bool load, bool verify)
{
lock (this)
{
MediaEntry cur = Head;
bool done = true;
while (cur != null)
{
if (cur.ID == id && (cur.GetStatus(load, verify) & DONE) == 0)
{
done = false;
}
cur = cur.Next;
}
return(done);
}
}
private void AddImageImpl(Image image, int id, int w, int h)
{
Head = MediaEntry.Insert(Head, new ImageMediaEntry(this, image, id, w, h));
}