public override void Dispose()
{
Detach();
MPF.TryCleanupAndDispose(StarTemplate);
MPF.TryCleanupAndDispose(StarReadOnlyTemplate);
base.Dispose();
}
public override void Dispose()
{
FrameworkElement visual = Visual;
MPF.TryCleanupAndDispose(visual);
base.Dispose();
}
protected void TriggerIfValuesEqual(object triggerValue, object checkValue)
{
object obj = null;
try
{
if ((triggerValue == null && checkValue == null) || (triggerValue != null && TypeConverter.Convert(checkValue, triggerValue.GetType(), out obj) &&
Equals(triggerValue, obj)))
{
ExecuteTriggerStartActions();
}
else
{
ExecuteTriggerEndActions();
}
}
finally
{
if (!ReferenceEquals(obj, checkValue))
{
// If the conversion created a copy of the object, dispose it
MPF.TryCleanupAndDispose(obj);
}
}
}
/// <summary>
/// Initializes the <see cref="ItemsControl.ItemsSource"/> property with the <see cref="SubItemsProvider"/>.
/// </summary>
/// <returns><c>true</c>, if the <see cref="ItemsControl.ItemsSource"/> property was changed by this method, else <c>false</c>.</returns>
protected virtual bool InitializeSubItemsSource()
{
SubItemsProvider sip = SubItemsProvider;
IEnumerable oldItemsSource = ItemsSource;
if (!_contextChangedAttached)
{
ContextChanged += OnContextChanged;
_contextChangedAttached = true;
}
if (_attachedContextSource != null)
{
_attachedContextSource.Detach(OnDataContextValueChanged);
}
_attachedContextSource = DataContext.EvaluatedSourceValue;
_attachedContextSource.Attach(OnDataContextValueChanged);
object context = Context;
if (context == null)
{
return(false);
}
ItemsSource = sip == null ? null : sip.GetSubItems(context);
if (oldItemsSource == ItemsSource)
{
return(false);
}
MPF.TryCleanupAndDispose(oldItemsSource);
CheckExpandable();
return(true);
}
public override void Dispose()
{
Detach();
DetachFromItemsSource(ItemsSource);
ItemCollection items = _items;
if (items != null)
{
DetachFromItems(items);
items.Dispose();
}
ItemCollection preparedItems = _preparedItems;
if (preparedItems != null)
{
preparedItems.Dispose();
}
ItemCollection preparedChildren = _preparedChildren;
if (preparedChildren != null)
{
preparedChildren.Dispose();
}
base.Dispose();
MPF.TryCleanupAndDispose(ItemTemplate);
MPF.TryCleanupAndDispose(ItemContainerStyle);
MPF.TryCleanupAndDispose(ItemsPanel);
}
internal void OnContentChanged(AbstractProperty prop, object oldValue)
{
object content = Content;
MPF.TryCleanupAndDispose(oldValue);
if (!ReferenceEquals(oldValue, _convertedContent))
{
MPF.TryCleanupAndDispose(_convertedContent);
}
object convertedContent;
// Try to unwrap ResourceWrapper before _convertedContent is accessed elsewhere.
// That's the only function we need from the ConvertType method, that's why we only call MPF.ConvertType
// instead of TypeConverter.Convert.
if (!MPF.ConvertType(content, typeof(object), out convertedContent))
{
convertedContent = content;
}
_convertedContent = ReferenceEquals(content, convertedContent) ? MpfCopyManager.DeepCopySetLVPs(convertedContent, this, this) : convertedContent;
if (ContentTemplate == null)
{
// No ContentTemplate set
InstallAutomaticContentDataTemplate();
}
FrameworkElement templateControl = _templateControl;
if (!(_convertedContent is FrameworkElement) && templateControl != null) // If our content is a FrameworkElement itself, it should only be used as template control but not as context
// The controls in the DataTemplate access their "data" via their data context, so we must assign it
{
templateControl.Context = _convertedContent;
}
}
void OnTemplateControlChanged(AbstractProperty property, object oldValue)
{
FrameworkElement oldTemplateControl = oldValue as FrameworkElement;
MPF.TryCleanupAndDispose(oldTemplateControl);
FrameworkElement element = TemplateControl;
if (element != null)
{
element.VisualParent = this;
element.SetScreen(Screen);
element.SetElementState(_elementState);
if (element.TemplateNameScope == null)
{
// This might be the case if the TemplateControl is directly assigned, without the use of a FrameworkTemplate,
// which normally sets the TemplateNameScope.
element.TemplateNameScope = new NameScope();
}
if (IsAllocated)
{
element.Allocate();
}
}
_initializedTemplateControl = element;
InvalidateLayout(true, true);
}
public override void Dispose()
{
Detach();
MPF.TryCleanupAndDispose(Fill);
MPF.TryCleanupAndDispose(Stroke);
base.Dispose();
}
protected void DisposeImageSources()
{
MPF.TryCleanupAndDispose(_sourceState.ImageSource);
_sourceState.ImageSource = null;
MPF.TryCleanupAndDispose(_fallbackSourceState.ImageSource);
_fallbackSourceState.ImageSource = null;
}
public override void Dispose()
{
MPF.TryCleanupAndDispose(_convertedContent);
MPF.TryCleanupAndDispose(_templateControl);
MPF.TryCleanupAndDispose(Content);
MPF.TryCleanupAndDispose(ContentTemplate);
base.Dispose();
}
public override void Dispose()
{
MPF.TryCleanupAndDispose(Template);
MPF.TryCleanupAndDispose(TemplateControl);
MPF.TryCleanupAndDispose(BorderBrush);
MPF.TryCleanupAndDispose(Background);
base.Dispose();
}
protected IList <FrameworkElement> _materializedItems = null; // Same size as _items, only parts are populated
public void Dispose()
{
DisposeItems();
MPF.TryCleanupAndDispose(_itemTemplate);
_itemTemplate = null;
MPF.TryCleanupAndDispose(_itemContainerStyle);
_itemContainerStyle = null;
}
public override void Dispose()
{
foreach (object command in _commands)
{
MPF.TryCleanupAndDispose(command);
}
base.Dispose();
}
public override void Dispose()
{
MPF.TryCleanupAndDispose(CommandStencil);
foreach (object parameter in CommandParameters)
{
MPF.TryCleanupAndDispose(parameter);
}
base.Dispose();
}
public override void Dispose()
{
Detach();
StopTimer();
UnsubscribeFromMessages();
MPF.TryCleanupAndDispose(HeaderTemplate);
MPF.TryCleanupAndDispose(ProgramTemplate);
base.Dispose();
}
public override void Dispose()
{
MPF.TryCleanupAndDispose(Value);
if (_dataDescriptor != null)
{
_dataDescriptor.Detach(OnPropertyChanged);
}
base.Dispose();
}
public void Clear()
{
lock (_syncObj)
{
foreach (object element in _elements)
MPF.TryCleanupAndDispose(element);
_elements.Clear();
}
FireCollectionChanged();
}
public void Dispose()
{
foreach (object value in _valuesToSet.Values)
{
MPF.TryCleanupAndDispose(value);
}
// 2011-09-10 Albert TODO: Proper disposal of animation contexts. Not necessary at the moment because currently,
// no animation can cope with disposable objects. As soon as there are such animations, disposal should be implemented for AnimationContexts.
//foreach (AnimationContext context in _scheduledAnimations)
// context.Dispose();
}
public bool Remove(object element)
{
bool result;
lock (_syncObj)
{
result = _elements.Remove(element);
MPF.TryCleanupAndDispose(element);
}
FireCollectionChanged();
return result;
}
public override void Dispose()
{
foreach (SetterBase setterBase in _setters)
{
setterBase.Dispose();
}
foreach (TriggerBase triggerBase in Triggers)
{
triggerBase.Dispose();
}
MPF.TryCleanupAndDispose(_resources);
base.Dispose();
}
/// <summary>
/// Will be called to evaluate our source value based on all available
/// property and context states.
/// This method will also be automatically re-called when any object involved in the
/// evaluation process of our source value was changed.
/// </summary>
/// <returns><c>true</c>, if the source value based on all input data
/// could be evaluated, else <c>false</c>.</returns>
protected bool UpdateSourceValue()
{
if (_isUpdatingSourceValue)
{
return(false);
}
_isUpdatingSourceValue = true;
bool sourceValueValid = false;
try
{
object result;
bool copy = false;
lock (_syncObj)
{
IDataDescriptor[] values;
if (!GetSourceValues(out values))
{
// Do nothing if not all necessary child bindings can be resolved at the current time
return(false);
}
if (_converter == null)
{
throw new XamlBindingException("MultiBindingMarkupExtension: Converter must be set");
}
Type targetType = _targetDataDescriptor == null ? typeof(object) : _targetDataDescriptor.DataType;
if (!_converter.Convert(values, targetType, ConverterParameter, out result))
{
return(false);
}
copy = values.Any(dd => dd != null && ReferenceEquals(dd.Value, result));
IsSourceValueValid = sourceValueValid = true;
}
object oldValue = _evaluatedSourceValue.SourceValue;
// Set the binding's value outside the lock to comply with the MP2 threading policy
_evaluatedSourceValue.SourceValue = new ValueDataDescriptor(copy ? MpfCopyManager.DeepCopyCutLVPs(result) : result);
if (oldValue != null)
{
MPF.TryCleanupAndDispose(oldValue);
}
return(true);
}
finally
{
IsSourceValueValid = sourceValueValid;
_isUpdatingSourceValue = false;
}
}
public override void Dispose()
{
base.Dispose();
IItemProvider itemProvider = _itemProvider;
_itemProvider = null;
if (itemProvider != null)
{
MPF.TryCleanupAndDispose(itemProvider);
}
itemProvider = _newItemProvider;
_newItemProvider = null;
if (itemProvider != null)
{
MPF.TryCleanupAndDispose(itemProvider);
}
}
protected void ResetTriggers(UIElement element)
{
element.UninitializeTriggers();
ICollection <TriggerBase> triggers = element.GetAttachedPropertyValue <ICollection <TriggerBase> >(STYLE_TRIGGERS_ATTACHED_PROPERTY_NAME, null);
if (triggers != null)
{
foreach (TriggerBase trigger in triggers)
{
if (element.Triggers.Remove(trigger))
{
MPF.TryCleanupAndDispose(trigger);
}
}
element.SetAttachedPropertyValue <ICollection <TriggerBase> >(STYLE_TRIGGERS_ATTACHED_PROPERTY_NAME, null);
}
}
public void SetItemProvider(IItemProvider itemProvider)
{
if (_elementState == ElementState.Running)
{
lock (Children.SyncRoot)
{
if (_newItemProvider == itemProvider)
{
return;
}
if (_newItemProvider != null)
{
MPF.TryCleanupAndDispose(_newItemProvider);
}
_newItemProvider = null;
if (_itemProvider == itemProvider)
{
return;
}
_newItemProvider = itemProvider;
}
}
else
{
if (_newItemProvider == itemProvider)
{
return;
}
if (_newItemProvider != null)
{
MPF.TryCleanupAndDispose(_newItemProvider);
}
_newItemProvider = null;
if (_itemProvider == itemProvider)
{
return;
}
if (_itemProvider != null)
{
MPF.TryCleanupAndDispose(_itemProvider);
}
_itemProvider = itemProvider;
}
InvalidateLayout(true, true);
}
protected void TriggerIfValuesEqual(object triggerValue, object checkValue)
{
object obj = null;
try
{
Triggered = triggerValue != null && TypeConverter.Convert(checkValue, triggerValue.GetType(), out obj) &&
Equals(triggerValue, obj);
}
finally
{
if (!ReferenceEquals(obj, checkValue))
{
// If the conversion created a copy of the object, dispose it
MPF.TryCleanupAndDispose(obj);
}
}
}
public override void Dispose()
{
base.Dispose();
foreach (UIElement child in GetChildren())
{
child.StopAndDispose();
}
foreach (TriggerBase triggerBase in Triggers)
{
triggerBase.Dispose();
}
MPF.TryCleanupAndDispose(RenderTransform);
MPF.TryCleanupAndDispose(LayoutTransform);
MPF.TryCleanupAndDispose(Effect);
MPF.TryCleanupAndDispose(TemplateNameScope);
MPF.TryCleanupAndDispose(OpacityMask);
MPF.TryCleanupAndDispose(_resources);
}
protected override SizeF CalculateInnerDesiredSize(SizeF totalSize)
{
FrameworkElementCollection children = Children;
lock (Children.SyncRoot)
{
if (_newItemProvider != null)
{
if (children.Count > 0)
{
children.Clear(false);
}
if (_itemProvider != null)
{
MPF.TryCleanupAndDispose(_itemProvider);
}
_itemProvider = _newItemProvider;
_newItemProvider = null;
_updateRenderOrder = true;
}
_assumedLineExtendsInNonOrientationDirection = 0;
IItemProvider itemProvider = ItemProvider;
if (itemProvider == null)
{
return(base.CalculateInnerDesiredSize(totalSize));
}
int numItems = itemProvider.NumItems;
if (numItems == 0)
{
return(new SizeF());
}
// CalculateInnerDesiredSize is called before ArrangeChildren!
// under the precondition that all items use the same template and are equally sized
// calulate just one line to find number of items and required size of a line
LineMeasurement exemplaryLine = _firstArrangedLineIndex < 0 ? CalculateLine(0, totalSize, false) : _arrangedLines[_firstArrangedLineIndex];
_assumedLineExtendsInNonOrientationDirection = exemplaryLine.TotalExtendsInNonOrientationDirection;
var itemsPerLine = exemplaryLine.EndIndex - exemplaryLine.StartIndex + 1;
var estimatedExtendsInNonOrientationDirection = (float)Math.Ceiling((float)numItems / itemsPerLine) * _assumedLineExtendsInNonOrientationDirection;
return(Orientation == Orientation.Horizontal ? new SizeF(exemplaryLine.TotalExtendsInOrientationDirection, estimatedExtendsInNonOrientationDirection) :
new SizeF(estimatedExtendsInNonOrientationDirection, exemplaryLine.TotalExtendsInOrientationDirection));
}
}
protected void LoadStyleResource(string resourceKey, bool searchInheritedResources)
{
PendingResource pr;
if (_pendingStyleResources.TryGetValue(resourceKey, out pr))
{
if (pr.State != LoadState.Loading)
{
pr.State = LoadState.Loading;
ILogger logger = ServiceRegistration.Get <ILogger>();
try
{
logger.Info("SkinResources: Loading style resource '{0}' from file '{1}'", resourceKey, pr.ResourcePath);
object o = XamlLoader.Load(pr.ResourcePath, this, new StyleResourceModelLoader(this));
ResourceDictionary rd = o as ResourceDictionary;
if (rd == null)
{
if (o != null)
{
MPF.TryCleanupAndDispose(o);
}
throw new InvalidCastException("Style resource file '" + pr.ResourcePath + "' doesn't contain a ResourceDictionary as root element");
}
_localStyleResources.TakeOver(rd, false, true);
}
catch (Exception ex)
{
_pendingStyleResources.Clear();
throw new EnvironmentException("Error loading style resource '{0}'", ex, pr.ResourcePath);
}
finally
{
_pendingStyleResources.Remove(resourceKey);
}
}
}
// Search in inherited resources after we searched through our own resources to make it possible to
// override style resources in a file with the same name (in that case, the current file from our own resource collection
// will be loaded first and thus is able to insert an overridden style before the inherited resource file is loaded).
if (searchInheritedResources && _inheritedSkinResources != null)
{
_inheritedSkinResources.LoadStyleResource(resourceKey, true);
}
}
public void Initialize(FrameworkElement parent, IEnumerable <object> itemsSource, Style itemContainerStyle, DataTemplate itemTemplate)
{
_parent = parent;
if (_materializedItems != null)
{
DisposeItems();
}
_items = new List <object>(itemsSource);
_materializedItems = new List <FrameworkElement>(_items.Count);
for (int i = 0; i < _items.Count; i++)
{
_materializedItems.Add(null);
}
MPF.TryCleanupAndDispose(_itemContainerStyle);
MPF.TryCleanupAndDispose(_itemTemplate);
// No need to set the LogicalParent at styles or data templates because they don't bind bindings
_itemContainerStyle = MpfCopyManager.DeepCopyCutLVPs(itemContainerStyle);
_itemTemplate = MpfCopyManager.DeepCopyCutLVPs(itemTemplate);
}
public void Execute()
{
IList <object> convertedCommands = LateBoundValue.ConvertLateBoundValues(_commands);
foreach (object objectCmd in convertedCommands)
{
object o;
if (!TypeConverter.Convert(objectCmd, typeof(IExecutableCommand), out o))
{
throw new ArgumentException(string.Format("CommandList: Command '{0}' cannot be converted to {1}", objectCmd, typeof(IExecutableCommand).Name));
}
IExecutableCommand cmd = (IExecutableCommand)o;
cmd.Execute();
if (!ReferenceEquals(cmd, objectCmd))
{
MPF.TryCleanupAndDispose(cmd);
}
}
}
