/// <summary>
/// Handles the current level value change.
/// </summary>
/// <param name="oldValue">Old value.</param>
/// <param name="newValue">New value.</param>
private void OnCurrentLevelChange(int oldValue, int newValue)
{
if (oldValue >= 0 && oldValue <= this.tickContainer.Children.Count && newValue > 0 && newValue <= this.tickContainer.Children.Count)
{
LevelOfDetailTick oldTick = null;
LevelOfDetailTick newTick = null;
if (oldValue > 0)
{
oldTick = this.tickContainer.Children[oldValue - 1] as LevelOfDetailTick;
if (oldTick != null)
{
oldTick.Selected = false;
}
}
if (newValue > 0)
{
newTick = this.tickContainer.Children[newValue - 1] as LevelOfDetailTick;
if (newTick != null)
{
newTick.Selected = true;
}
}
this.RaiseLevelOfDetailChangeEvent(oldValue, newValue);
}
}
/// <summary>
/// Handles the property changed event of the selected property.
/// </summary>
/// <param name="d">DependencyObject whose selected property changed.</param>
/// <param name="e">Event args containing instance data.</param>
private static void OnSelectionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
LevelOfDetailTick tick = d as LevelOfDetailTick;
if (tick != null && e.OldValue != e.NewValue)
{
tick.TransitionState();
}
}
/// <summary>
/// Handles the mouse left button up event of the tick.
/// </summary>
/// <param name="sender">Sender of the event.</param>
/// <param name="e">Event args containing instance data.</param>
private void Tick_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
LevelOfDetailTick tick = sender as LevelOfDetailTick;
if (tick != null)
{
int tickIndex = Convert.ToInt32(tick.Tag, CultureInfo.CurrentCulture);
this.CurrentLevel = tickIndex;
}
}
/// <summary>
/// Adds ticks to Tick container.
/// </summary>
private void AddTicks()
{
for (int tickIndex = 0; tickIndex < this.NumberOfLevels; tickIndex++)
{
if (this.tickContainer.Resources.Contains(TickTemplateName))
{
LevelOfDetailTick tick = (this.tickContainer.Resources[TickTemplateName] as DataTemplate).LoadContent() as LevelOfDetailTick;
if (tick != null)
{
tick.Tag = tickIndex + 1;
if (tickIndex + 1 == this.CurrentLevel)
{
tick.Selected = true;
}
tick.MouseLeftButtonUp += new System.Windows.Input.MouseButtonEventHandler(this.Tick_MouseLeftButtonUp);
this.tickContainer.Children.Add(tick);
}
}
}
}