/// <summary>
/// Called when the value of the TreeMapItemDefinitionSelectorProperty property changes.
/// </summary>
/// <param name="d">Reference to the TreeMap object.</param>
/// <param name="e">Event handler arguments.</param>
private static void OnItemDefinitionSelectorPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TreeMap treeMap = d as TreeMap;
if (treeMap != null)
{
TreeMapItemDefinitionSelector oldValue = e.OldValue as TreeMapItemDefinitionSelector;
TreeMapItemDefinitionSelector newValue = e.NewValue as TreeMapItemDefinitionSelector;
treeMap.OnItemDefinitionSelectorPropertyChanged(oldValue, newValue);
}
}
/// <summary>
/// Called when the value of the ItemsSourceProperty property changes.
/// </summary>
/// <param name="d">Reference to the TreeMap object.</param>
/// <param name="e">Event handler arguments.</param>
private static void OnItemsSourcePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TreeMap treeMap = d as TreeMap;
if (treeMap != null)
{
IEnumerable oldValue = e.OldValue as IEnumerable;
IEnumerable newValue = e.NewValue as IEnumerable;
treeMap.OnItemsSourcePropertyChanged(oldValue, newValue);
}
}
/// <summary>
/// Called when the value of the InterpolatorsProperty property changes.
/// </summary>
/// <param name="d">Reference to the TreeMap object.</param>
/// <param name="e">Event handler arguments.</param>
private static void OnInterpolatorsPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TreeMap treeMap = d as TreeMap;
if (treeMap != null)
{
Collection <Interpolator> oldValue = e.OldValue as Collection <Interpolator>;
Collection <Interpolator> newValue = e.NewValue as Collection <Interpolator>;
treeMap.OnInterpolatorsPropertyChanged(oldValue, newValue);
}
}
/// <summary>
/// Returns an instance of a TreeMapItemDefinition class used to specify properties for the
/// current item.
/// </summary>
/// <param name="treeMap">Reference to the TreeMap class.</param>
/// <param name="item">One of the nodes in the ItemsSource hierarchy.</param>
/// <param name="level">The level of the node in the hierarchy.</param>
/// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null
/// the TreeMap will use the value of its ItemDefinition property.</returns>
public override TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level)
{
if (Children.Count > 0)
{
int child = level % Children.Count;
return Children[child];
}
else
{
return null;
}
}
/// <summary>
/// Returns an instance of a SegmentItemDefinitionSelector class used to specify properties for the
/// current item.
/// </summary>
/// <param name="treeMap">Reference to the TreeMap class.</param>
/// <param name="item">One of the nodes in the ItemsSource hierarchy.</param>
/// <param name="level">The level of the node in the hierarchy.</param>
/// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null
/// the TreeMap will use the value of its ItemDefinition property.</returns>
public override TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level)
{
SegmentNode node = item as SegmentNode;
if (Children.Count > 0 && node != null && node.Segment >= 0)
{
int child = node.Segment % Children.Count;
return Children[child];
}
else
{
return null;
}
}
/// <summary>
/// Returns an instance of a TreeMapItemDefinition class used to specify properties for the
/// current item.
/// </summary>
/// <param name="treeMap">Reference to the TreeMap class.</param>
/// <param name="item">One of the nodes in the ItemsSource hierarchy.</param>
/// <param name="level">The level of the node in the hierarchy.</param>
/// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null
/// the TreeMap will use the value of its ItemDefinition property.</returns>
public override TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level)
{
TreeMapItemDefinition template = null;
switch (level)
{
case 0:
template = Children[0];
break;
case 1:
template = Children[1];
break;
default:
template = Children[2];
break;
}
return template;
}
/// <summary>
/// Called when the value of the ItemDefinitionProperty property changes.
/// </summary>
/// <param name="d">Reference to the TreeMap object.</param>
/// <param name="e">Event handler arguments.</param>
private static void OnItemDefinitionPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TreeMap treeMap = d as TreeMap;
if (treeMap != null)
{
TreeMapItemDefinition oldValue = e.OldValue as TreeMapItemDefinition;
TreeMapItemDefinition newValue = e.NewValue as TreeMapItemDefinition;
// Unregister old TreeMapItemDefinition
if (oldValue != null)
{
oldValue.PropertyChanged -= treeMap.OnItemDefinitionPropertyChanged;
}
// Register new TreeMapItemDefinition
if (newValue != null)
{
newValue.PropertyChanged += treeMap.OnItemDefinitionPropertyChanged;
}
treeMap.OnItemDefinitionPropertyChanged(oldValue, newValue);
}
}
public void ChangingTreeMapItemDefinitionItemsSourceUpdatesTreeMap()
{
TreeMap treeMap = new TreeMap();
TreeMapItemDefinition itemDefinition = new TreeMapItemDefinition { ValueBinding = new Binding() };
itemDefinition.ItemTemplate = (DataTemplate)XamlReader.Load(SimpleItemTemplate);
treeMap.ItemDefinition = itemDefinition;
treeMap.ItemsSource = new KeyValuePair<int, int[]>[] { new KeyValuePair<int, int[]>(1, new int[] { 2, 3, 4, 5 }) };
TestAsync(
treeMap,
// +1 because of the Border in default template
() => Assert.AreEqual(1 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => itemDefinition.ItemsSource = new Binding("Value"),
() => Assert.AreEqual(5 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
/// <summary>
/// Returns an instance of a TreeMapItemDefinition class used to specify properties for the
/// current item.
/// </summary>
/// <param name="treeMap">Reference to the TreeMap class.</param>
/// <param name="item">One of the nodes in the ItemsSource hierarchy.</param>
/// <param name="level">The level of the node in the hierarchy.</param>
/// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null
/// the TreeMap will use the value of its ItemTemplate property.</returns>
public override TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level)
{
throw new NotImplementedException();
}
/// <summary> /// Returns an instance of a TreeMapItemDefinition class used to specify properties for the /// current item. /// </summary> /// <param name="treeMap">Reference to the TreeMap class.</param> /// <param name="item">One of the nodes in the ItemsSource hierarchy.</param> /// <param name="level">The level of the node in the hierarchy.</param> /// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null /// the TreeMap will use the value of its ItemDefinition property.</returns> public abstract TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level);
public void TreeMapInHorizontalStackPanelHasMinWidth()
{
TreeMap treeMap = new TreeMap();
StackPanel panel = new StackPanel { Width = 100, Height = 200, Orientation = Orientation.Horizontal };
panel.Children.Add(treeMap);
TestAsync(
panel,
() => Assert.AreEqual(treeMap.MinWidth, treeMap.ActualWidth),
() => Assert.AreEqual(panel.ActualHeight, treeMap.ActualHeight));
}
public void TreeMapInGridIsFullSize()
{
TreeMap treeMap = new TreeMap();
Grid panel = new Grid { Width = 100, Height = 200 };
panel.Children.Add(treeMap);
TestAsync(
panel,
() => Assert.AreEqual(panel.ActualWidth, treeMap.ActualWidth),
() => Assert.AreEqual(panel.ActualHeight, treeMap.ActualHeight));
}
public void ChangingContentsOfNestedObservableCollectionUpdatesTreeMap()
{
TreeMap treeMap = new TreeMap();
TreeMapItemDefinition itemDefinition = new TreeMapItemDefinition
{
ValueBinding = new Binding(),
ItemsSource = new Binding("Value"),
};
itemDefinition.ItemTemplate = (DataTemplate)XamlReader.Load(SimpleItemTemplate);
treeMap.ItemDefinition = itemDefinition;
ObservableCollection<int> nestedItemsSourceA = new ObservableCollection<int>();
ObservableCollection<int> nestedItemsSourceB = new ObservableCollection<int>();
treeMap.ItemsSource = new KeyValuePair<int, ObservableCollection<int>>[]
{
new KeyValuePair<int, ObservableCollection<int>>(0, nestedItemsSourceA),
new KeyValuePair<int, ObservableCollection<int>>(0, nestedItemsSourceB),
};
TestAsync(
treeMap,
// +1 because of the Border in default template
() => Assert.AreEqual(0 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => nestedItemsSourceA.Add(1),
() => Assert.AreEqual(1 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => nestedItemsSourceB.Add(2),
() => Assert.AreEqual(2 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => nestedItemsSourceA.Add(3),
() => Assert.AreEqual(3 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => nestedItemsSourceB.Clear(),
() => Assert.AreEqual(2 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => nestedItemsSourceA.Clear(),
() => Assert.AreEqual(0 + 2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
public void ChangingContentsOfObservableCollectionUpdatesTreeMap()
{
TreeMap treeMap = new TreeMap();
ObservableCollection<int> itemsSource = new ObservableCollection<int>();
treeMap.ItemsSource = itemsSource;
TestAsync(
treeMap,
// +1 because of the Border in default template
() => Assert.AreEqual(0 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => itemsSource.Add(1),
() => Assert.AreEqual(1 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => itemsSource.Add(1),
() => Assert.AreEqual(2 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => itemsSource.Clear(),
() => Assert.AreEqual(0 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
public void ClearingItemsSourceRemovesChildren()
{
TreeMap treeMap = new TreeMap();
TestAsync(
treeMap,
// +1 because of the Border in default template
() => Assert.AreEqual(0 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => treeMap.ItemsSource = new int[] { 1, 2, 3 },
() => Assert.AreEqual(3 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()),
() => treeMap.ItemsSource = null,
() => Assert.AreEqual(0 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
public void TreeMapRendersSimpleData()
{
TreeMap treeMap = new TreeMap();
treeMap.ItemsSource = new int[] { 1, 2, 3 };
TestAsync(
treeMap,
// +1 because of the Border in default template
() => Assert.AreEqual(3 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
public void ProvidingNullTreeMapItemDefinitionItemTemplateWorks()
{
TreeMap treeMap = new TreeMap();
treeMap.ItemDefinition = new TreeMapItemDefinition { ValueBinding = new Binding() };
TestAsync(
treeMap,
// +1 because of the Border in default template
() => treeMap.ItemsSource = new int[] { 1, 2, 3 },
() => Assert.AreEqual(0 + 1, treeMap.GetVisualDescendents().OfType<Border>().Count()));
}
/// <summary> /// Returns an instance of a TreeMapItemDefinition class used to specify properties for the /// current item. /// </summary> /// <param name="treeMap">Reference to the TreeMap class.</param> /// <param name="item">One of the nodes in the ItemsSource hierarchy.</param> /// <param name="level">The level of the node in the hierarchy.</param> /// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null /// the TreeMap will use the value of its ItemDefinition property.</returns> public abstract TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level);