Please enable JavaScript to use RhodeCode Enterprise
##// END OF EJS Templates
using System ;
using System.Collections.Generic ;
using System.Linq ;
using System.Text ;
using System.Threading ;
namespace Implab
{
/// <summary>
/// This class allows to interact with asyncronuos task.
/// </summary>
/// <remarks>
/// Members of this object are thread safe.
/// </remarks>
class TaskController
{
object m_lock ;
string m_message ;
bool m_cancelled ;
float m_current ;
float m_max ;
public event EventHandler < ValueEventArgs < string >> MessageUpdated ;
public event EventHandler < ValueEventArgs < float >> ProgressUpdated ;
public event EventHandler < ProgressInitEventArgs > ProgressInit ;
public TaskController ()
{
m_lock = new Object ();
}
public string Message
{
get
{
lock ( m_lock )
return m_message ;
}
set
{
lock ( m_lock )
{
m_message = value ;
OnMessageUpdated ();
}
}
}
public float CurrentProgress
{
get
{
lock ( m_lock )
return m_current ;
}
set
{
lock ( m_lock )
{
var prev = m_current ;
m_current = value ;
if ( m_current >= m_max )
m_current = m_max ;
if ( m_current != prev )
OnProgressUpdated ();
}
}
}
public void InitProgress ( float current , float max , string message )
{
if ( max < 0 )
throw new ArgumentOutOfRangeException ( "max" );
if ( current < 0 || current > max )
throw new ArgumentOutOfRangeException ( "current" );
lock ( m_lock ) {
m_current = current ;
m_max = max ;
m_message = message ;
OnProgressInit ();
}
}
protected virtual void OnMessageUpdated ()
{
var temp = MessageUpdated ;
if ( temp != null )
{
temp ( this , new ValueEventArgs < string >( m_message ));
}
}
protected virtual void OnProgressUpdated ()
{
var temp = ProgressUpdated ;
if ( temp != null )
{
temp ( this , new ValueEventArgs < float >( m_current ));
}
}
protected virtual void OnProgressInit ()
{
var temp = ProgressInit ;
if ( temp != null )
{
temp ( this , new ProgressInitEventArgs ( m_current , m_max , m_message ));
}
}
}
}
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