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[Dotgnu-pnet-commits] CVS: pnetlib/System.Windows.Forms Timer.cs,NONE,1.
From: |
Rhys Weatherley <address@hidden> |
Subject: |
[Dotgnu-pnet-commits] CVS: pnetlib/System.Windows.Forms Timer.cs,NONE,1.1 |
Date: |
Mon, 23 Jun 2003 01:14:44 -0400 |
Update of /cvsroot/dotgnu-pnet/pnetlib/System.Windows.Forms
In directory subversions:/tmp/cvs-serv31418/System.Windows.Forms
Added Files:
Timer.cs
Log Message:
Implement Forms timers.
--- NEW FILE ---
/*
* Timer.cs - Implementation of the
* "System.Windows.Forms.Timer" class.
*
* Copyright (C) 2003 Southern Storm Software, Pty Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
namespace System.Windows.Forms
{
using System.Drawing.Toolkit;
using System.ComponentModel;
public class Timer
#if CONFIG_COMPONENT_MODEL
: Component
#else
: IDisposable
#endif
{
// Internal state.
private bool enabled;
private int interval;
private Object timerCookie;
// Constructors.
public Timer()
{
this.enabled = false;
this.interval = 100;
}
#if CONFIG_COMPONENT_MODEL
public Timer(IContainer container) : this()
{
container.Add(this);
}
#else
// Destructor.
~Timer()
{
Dispose(false);
}
#endif
// Enable or disable the timer.
public virtual bool Enabled
{
get
{
return enabled;
}
set
{
lock(this)
{
if(enabled != value)
{
enabled = value;
if(value)
{
timerCookie =
ToolkitManager.Toolkit
.RegisterTimer
(this, interval,
new EventHandler(Expire));
}
else
{
ToolkitManager.Toolkit.UnregisterTimer
(timerCookie);
timerCookie =
null;
}
}
}
}
}
// Get or set the timer interval.
public int Interval
{
get
{
return interval;
}
set
{
if(value < 1)
{
throw new ArgumentException
(S._("SWF_InvalidInterval"), "value");
}
lock(this)
{
if(interval != value)
{
bool saveEnabled =
enabled;
Enabled = false;
interval = value;
Enabled = saveEnabled;
}
}
}
}
// Start the timer.
public void Start()
{
Enabled = true;
}
// Stop the timer.
public void Stop()
{
Enabled = false;
}
// Convert this object into a string.
public override String ToString()
{
return base.ToString() + ", Interval: " +
interval.ToString();
}
// Event that is emitted when the timer expires.
public event EventHandler Tick;
// Dispose of the timer.
#if !CONFIG_COMPONENT_MODEL
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
#else
protected override void Dispose(bool disposing)
#endif
{
Enabled = false;
}
// Raise the "Tick" event.
protected virtual void OnTick(EventArgs e)
{
if(Tick != null)
{
Tick(this, e);
}
}
// Method that is called by the toolkit when the timer expires.
private void Expire(Object sender, EventArgs e)
{
OnTick(e);
}
}; // class Timer
}; // namespace System.Windows.Forms
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