/// <summary>
/// Gets the bar for the given item.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
private FloatingOperationDialogBar GetBarForItem(IOperationItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
// find the bar with the given item...
FloatingOperationDialogBar bar = null;
foreach (FloatingOperationDialogBar scanBar in this.panelBars.Controls)
{
if (scanBar.Item == item)
{
bar = scanBar;
break;
}
}
// not found... create one...
if (bar == null)
{
bar = this.AddBar(item);
}
// return...
return(bar);
}
/// <summary>
/// Updates the view.
/// </summary>
public void RefreshView()
{
if (this.InvokeRequired)
{
RefreshViewDelegate d = new RefreshViewDelegate(this.RefreshView);
this.Invoke(d);
return;
}
// set...
IOperationItem item = this.CurrentItem;
if (item != null)
{
// get the bar to display status information in...
FloatingOperationDialogBar bar = this.GetBarForItem(item);
if (bar != null)
{
bar.RefreshView();
}
}
else
{
if (this.IsDefaultBarVisible)
{
this.DefaultBar.Status = this.Caption;
}
}
}
/// <summary>
/// Adds a bar to the view.
/// </summary>
/// <returns></returns>
private FloatingOperationDialogBar AddBar(IOperationItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
// invoke?
if (this.InvokeRequired)
{
// flip...
AddBarDelegate d = new AddBarDelegate(this.AddBar);
return((FloatingOperationDialogBar)this.Invoke(d, new object[] { item }));
}
// layout...
this.panelBars.SuspendLayout();
try
{
// clear...
if (this.IsDefaultBarVisible)
{
this.panelBars.Controls.Clear();
}
// create...
FloatingOperationDialogBar bar = new FloatingOperationDialogBar(item);
bar.Dock = DockStyle.Top;
this.panelBars.Controls.Add(bar);
// listen...
item.Finished += new EventHandler(item_Finished);
// set...
_currentItem = item;
// return...
return(bar);
}
finally
{
this.panelBars.ResumeLayout();
}
}
private void timerSample_Tick(object sender, System.EventArgs e)
{
try
{
if (this.CurrentItem != null)
{
FloatingOperationDialogBar bar = this.GetBarForItem(this.CurrentItem);
if (bar != null)
{
bar.RefreshView();
}
}
}
catch (Exception ex)
{
this.timerSample.Enabled = false;
Alert.ShowWarning(this, "Failed to update operation bar.", ex);
}
}
/// <summary>
/// Removes the bar from the view.
/// </summary>
/// <param name="item"></param>
private void RemoveBar(IOperationItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
// invoke...
if (this.InvokeRequired)
{
// flip...
RemoveBarDelegate d = new RemoveBarDelegate(this.RemoveBar);
this.Invoke(d, new object[] { item });
return;
}
// layout...
this.panelBars.SuspendLayout();
try
{
// fins...
FloatingOperationDialogBar bar = this.GetBarForItem(item);
if (bar != null)
{
// unsub...
item.Finished -= new EventHandler(item_Finished);
// remove...
this.panelBars.Controls.Remove(bar);
// count?
if (this.panelBars.Controls.Count == 0)
{
ShowDefaultBar();
}
}
}
finally
{
this.panelBars.ResumeLayout();
}
}