/// <summary>
/// Creates a new event arguments instance.
/// </summary>
/// <param name="item">The progress item.</param>
/// <param name="progress">The progress info.</param>
/// <param name="oldLegend">The old legend.</param>
/// <param name="newLegend">The new legend.</param>
public ProgressItemLegendSetEventArgs(ProgressItem item, ProgressInfo progress, ProgressLegend oldLegend, ProgressLegend newLegend)
: base(item)
{
this.Progress = progress;
this.OldLegend = oldLegend;
this.NewLegend = newLegend;
}
/// <summary>
/// Creates a new progress list box item with the specified text and progress legend.
/// </summary>
/// <param name="text">The item text.</param>
/// <param name="legend">The progress legend.</param>
public ProgressItem(string text, ProgressLegend legend)
{
// Set the text.
this.text = text;
// Create the progress information.
this.progress = new ProgressInfo(legend);
// Set the progress event handlers.
this.progress.LevelChanged += this.OnProgressLevelChanged;
this.progress.DefaultChanged += this.OnProgressDefaultChanged;
this.progress.CountChanged += this.OnProgressCountChanged;
this.progress.LegendSet += this.OnProgressLegendSet;
this.progress.LegendChanged += this.OnProgressLegendChanged;
}
// Private methods.
/// <summary>
/// An event handler called when a new progress info has been set.
/// </summary>
/// <param name="oldProgress">The old progress info.</param>
/// <param name="newProgress">The new progress info.</param>
private void OnProgressSet(ProgressInfo oldProgress, ProgressInfo newProgress)
{
// If the object has been disposed, do nothing.
if (this.IsDisposed) return;
// Remove the event handler for the old progress info.
if (null != oldProgress)
{
oldProgress.CountChanged -= this.OnProgressCountChanged;
oldProgress.DefaultChanged -= this.OnProgressDefaultChanged;
oldProgress.LevelChanged -= this.OnProgressLevelChanged;
oldProgress.LegendSet -= this.OnProgressLegendSet;
oldProgress.LegendChanged -= this.OnProgressLegendChanged;
}
// Add the event handler for the new progress info.
if (null != newProgress)
{
newProgress.CountChanged += this.OnProgressCountChanged;
newProgress.DefaultChanged += this.OnProgressDefaultChanged;
newProgress.LevelChanged += this.OnProgressLevelChanged;
newProgress.LegendSet += this.OnProgressLegendSet;
newProgress.LegendChanged += this.OnProgressLegendChanged;
}
// Update the progress.
this.OnUpdateProgress();
// Update the legend.
this.OnUpdateLegend();
// Update the geometric measurements.
this.OnUpdateGeometrics();
// Refresh the control.
this.Invalidate(this.controlBorder);
}
/// <summary>
/// Creates a new event arguments instance.
/// </summary>
/// <param name="progress">The progress info.</param>
public ProgressInfoEventArgs(ProgressInfo progress)
{
this.Progress = progress;
}
/// <summary>
/// Creates a new event arguments instance.
/// </summary>
/// <param name="progress">The progress info.</param>
/// <param name="legend">The progress legend.</param>
public ProgressLegendChangedEventArgs(ProgressInfo progress, ProgressLegend legend)
: base(progress)
{
this.Legend = legend;
}
/// <summary>
/// Creates a new event arguments instance.
/// </summary>
/// <param name="progress">The progress info.</param>
/// <param name="oldLegend">The old progress legend.</param>
/// <param name="newLegend">The new progress legend.</param>
public ProgressLegendSetEventArgs(ProgressInfo progress, ProgressLegend oldLegend, ProgressLegend newLegend)
: base(progress)
{
this.OldLegend = oldLegend;
this.NewLegend = newLegend;
}
/// <summary>
/// Creates a new event arguments instance.
/// </summary>
/// <param name="item">The progress item.</param>
/// <param name="progress">The progress info.</param>
/// <param name="legend">The legend.</param>
public ProgressItemLegendChangedEventArgs(ProgressItem item, ProgressInfo progress, ProgressLegend legend)
: base(item)
{
this.Progress = progress;
this.Legend = legend;
}
/// <summary>
/// An event handler called before the item progress object has changed.
/// </summary>
/// <param name="oldProgress">The old progress object.</param>
/// <param name="newProgress">The new progress object.</param>
private void OnProgressChanged(ProgressInfo oldProgress, ProgressInfo newProgress)
{
// Remove the old progress event handlers.
if (oldProgress != null)
{
oldProgress.LevelChanged -= this.OnProgressLevelChanged;
oldProgress.DefaultChanged -= this.OnProgressDefaultChanged;
oldProgress.CountChanged -= this.OnProgressCountChanged;
oldProgress.LegendSet -= this.OnProgressLegendSet;
oldProgress.LegendChanged -= this.OnProgressLegendChanged;
}
// Add the new progress event handlers.
if (newProgress != null)
{
newProgress.LevelChanged += this.OnProgressLevelChanged;
newProgress.DefaultChanged += this.OnProgressDefaultChanged;
newProgress.CountChanged += this.OnProgressCountChanged;
newProgress.LegendSet += this.OnProgressLegendSet;
newProgress.LegendChanged += this.OnProgressLegendChanged;
}
// Raise the event.
if (null != this.ProgressSet) this.ProgressSet(this, new ProgressItemInfoSetEventArgs(this, oldProgress, newProgress));
}
