diff options
Diffstat (limited to 'mcs/class/Managed.Windows.Forms/System.Windows.Forms/Timer.cs')
-rw-r--r-- | mcs/class/Managed.Windows.Forms/System.Windows.Forms/Timer.cs | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Timer.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Timer.cs new file mode 100644 index 00000000000..d0326df3e83 --- /dev/null +++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/Timer.cs @@ -0,0 +1,147 @@ +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// +// Copyright (c) 2004 Novell, Inc. +// +// Authors: +// Jackson Harper (jackson@ximian.com) + + +using System; +using System.Threading; +using System.ComponentModel; + +namespace System.Windows.Forms { + [DefaultProperty("Interval")] + [DefaultEvent("Tick")] + [ToolboxItemFilter("System.Windows.Forms", ToolboxItemFilterType.Allow)] + public class Timer : Component { + + private bool enabled; + private IContainer container; + private int interval = 100; + private DateTime expires; + + internal static readonly int Minimum = 15; + + public Timer () + { + enabled = false; + } + + public Timer (IContainer container) : this () + { + container.Add (this); + } + + [DefaultValue (false)] + public virtual bool Enabled { + get { + return enabled; + } + set { + if (value != enabled) { + enabled = value; + if (value) { + XplatUI.SetTimer (this); + } else { + XplatUI.KillTimer (this); + } + } + } + } + + [DefaultValue (100)] + public int Interval { + get { + return interval; + } + set { + if (interval == value) { + return; + } + + interval = value; + + // Use AddTicks so we get some rounding + expires = DateTime.Now.AddMilliseconds (interval > Minimum ? interval : Minimum); + + if (enabled == true) { + XplatUI.KillTimer (this); + XplatUI.SetTimer (this); + } + } + } + + public void Start () + { + Enabled = true; + } + + public void Stop () + { + Enabled = false; + } + + internal DateTime Expires { + get { + return expires; + } + } + + public event EventHandler Tick; + + public override string ToString () + { + return base.ToString () + ", Interval: " + Interval; + } + + internal void Update (DateTime update) + { + expires = update.AddMilliseconds (interval > Minimum ? interval : Minimum); + } + + internal void FireTick () + { + OnTick (EventArgs.Empty); + } + + + protected virtual void OnTick (EventArgs e) + { + if (Tick != null) + Tick (this, e); + } + + protected override void Dispose (bool disposing) + { + base.Dispose (disposing); + Enabled = false; + } + + private bool has_last_fire = false; + private DateTime last_fire; + + internal void TickHandler (object sender, EventArgs e) + { + OnTick (e); + } + } +} + |