/// <summary>
/// Both cluster and link keep Id of text caption in ints[0]
/// </summary>
/// <param name="captionHostSh"></param>
/// <returns></returns>
private string TryGetTextCaption(IServerVdShape captionHostSh)
{
var st = captionHostSh.GetState();
var captionShId = st.ints[0];
if (captionShId != -1)
{
//caption exists
var captionSh = _doc.TryGetShape(captionShId);
if (captionSh != null)
{
var st2 = captionSh.GetState();
if (st2.bytes != null)
{
using (var s = new MemoryStream(st2.bytes))
{
using (var br = new BinaryReader(s))
{
return(br.ReadString());
}
}
}
}
}
return(null);
}
public void RemoveShape(IServerVdShape sh)
{
if (sh.GetCursor() != null)
{
throw new InvalidOperationException("cannot remove shape locked by cursor!");
}
_shapeIdToShape.Remove(sh.Id());
}
public void UnlockAndRemoveShape(IServerVdShape sh)
{
var curs = sh.GetCursor();
if (curs != null)
{
UnlockShape(sh, curs.OwnerId);
}
RemoveShape(sh);
}
//returns previously locked shape, caller should broadcast cursor free event if result != null
public void LockShape(IServerVdShape sh, int owner)
{
if (sh.GetCursor() != null)
{
throw new InvalidOperationException("cannot lock locked shape");
}
var cursor = new ServerCursor(owner);
sh.SetCursor(cursor);
_userIdToCursor.Add(owner, sh);
}
public bool editingPermission(IServerVdShape sh, int owner)
{
if (sh.GetCursor() == null)
{
return(true);
}
else if (sh.GetCursor().OwnerId == owner)
{
return(true);
}
else
{
return(false);
}
}
public void AddShapeAndLock(IServerVdShape sh)
{
_shapeIdToShape.Add(sh.Id(), sh);
LockShape(sh, sh.InitialOwner());
}
public void AddShape(IServerVdShape sh)
{
_shapeIdToShape.Add(sh.Id(), sh);
}
public void UnlockShape(IServerVdShape sh, int owner)
{
sh.UnsetCursor();
_userIdToCursor.Remove(owner);
}
/// <summary>
/// Both cluster and link keep Id of text caption in ints[0]
/// </summary>
/// <param name="captionHostSh"></param>
/// <returns></returns>
private string TryGetTextCaption(IServerVdShape captionHostSh)
{
var st = captionHostSh.GetState();
var captionShId = st.ints[0];
if (captionShId != -1)
{
//caption exists
var captionSh = _doc.TryGetShape(captionShId);
if (captionSh != null)
{
var st2 = captionSh.GetState();
if (st2.bytes != null)
{
using (var s = new MemoryStream(st2.bytes))
{
using (var br = new BinaryReader(s))
{
return br.ReadString();
}
}
}
}
}
return null;
}
public void UnlockAndRemoveShape(IServerVdShape sh)
{
var curs = sh.GetCursor();
if (curs != null)
UnlockShape(sh, curs.OwnerId);
RemoveShape(sh);
}
public bool editingPermission(IServerVdShape sh, int owner)
{
if (sh.GetCursor() == null)
return true;
else if (sh.GetCursor().OwnerId == owner)
return true;
else
return false;
}
public void RemoveShape(IServerVdShape sh)
{
if (sh.GetCursor() != null)
throw new InvalidOperationException("cannot remove shape locked by cursor!");
_shapeIdToShape.Remove(sh.Id());
}
public void AddShapeAndLock(IServerVdShape sh)
{
_shapeIdToShape.Add(sh.Id(), sh);
LockShape(sh, sh.InitialOwner());
}
public void AddShape(IServerVdShape sh)
{
_shapeIdToShape.Add(sh.Id(), sh);
}
public void UnlockShape(IServerVdShape sh, int owner)
{
sh.UnsetCursor();
_userIdToCursor.Remove(owner);
}
//returns previously locked shape, caller should broadcast cursor free event if result != null
public void LockShape(IServerVdShape sh, int owner)
{
if (sh.GetCursor() != null)
throw new InvalidOperationException("cannot lock locked shape");
var cursor = new ServerCursor(owner);
sh.SetCursor(cursor);
_userIdToCursor.Add(owner, sh);
}