///
override protected bool IsOffscreenCore()
{
IsOffscreenBehavior behavior = AutomationProperties.GetIsOffscreenBehavior(_owner);
switch (behavior)
{
case IsOffscreenBehavior.Onscreen:
return(false);
case IsOffscreenBehavior.Offscreen:
return(true);
case IsOffscreenBehavior.FromClip:
{
bool isOffscreen = !_owner.IsVisible;
if (!isOffscreen)
{
Rect boundingRect = CalculateVisibleBoundingRect(_owner);
isOffscreen = (DoubleUtil.AreClose(boundingRect, Rect.Empty) ||
DoubleUtil.AreClose(boundingRect.Height, 0) ||
DoubleUtil.AreClose(boundingRect.Width, 0));
}
return(isOffscreen);
}
default:
return(!_owner.IsVisible);
}
}
/// <summary>
/// <see cref="AutomationPeer.IsOffscreenCore"/>
/// </summary>
/// <returns></returns>
protected override bool IsOffscreenCore()
{
IsOffscreenBehavior behavior = AutomationProperties.GetIsOffscreenBehavior(Owner);
switch (behavior)
{
case IsOffscreenBehavior.Onscreen:
return(false);
case IsOffscreenBehavior.Offscreen:
return(true);
default:
{
TextElement textElement = (TextElement)Owner;
ITextView textView = textElement.TextContainer.TextView;
if (textView == null || !textView.IsValid || (!textView.Contains(textElement.ContentStart) && !textView.Contains(textElement.ContentEnd)))
{
return(true);
}
if (CalculateVisibleRect(textView, textElement, textElement.ContentStart, textElement.ContentEnd) == Rect.Empty)
{
return(true);
}
return(false);
}
}
}
/// <summary>
/// Helper for setting IsOffscreenBehavior property on a DependencyObject.
/// </summary>
public static void SetIsOffscreenBehavior(DependencyObject element, IsOffscreenBehavior value)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
element.SetValue(IsOffscreenBehaviorProperty, value);
}
/// <summary>
/// Helper for setting IsOffscreenBehavior property on a StyledElement.
/// </summary>
public static void SetIsOffscreenBehavior(StyledElement element, IsOffscreenBehavior value)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
element.SetValue(IsOffscreenBehaviorProperty, value);
}
/// <summary>
/// <see cref="AutomationPeer.IsOffscreenCore"/>
/// </summary>
override protected bool IsOffscreenCore()
{
IsOffscreenBehavior behavior = AutomationProperties.GetIsOffscreenBehavior(_owner);
switch (behavior)
{
case IsOffscreenBehavior.Onscreen:
return(false);
default:
return(true);
}
}
/// <summary>Gets a value that indicates whether the <see cref="T:System.Windows.FrameworkContentElement" /> that is associated with this <see cref="T:System.Windows.Automation.Peers.DocumentAutomationPeer" /> is off the screen. This method is called by <see cref="M:System.Windows.Automation.Peers.AutomationPeer.IsOffscreen" />.</summary>
/// <returns>
/// <see langword="true" /> if the element is not on the screen; otherwise, <see langword="false" />.</returns>
// Token: 0x06002661 RID: 9825 RVA: 0x000B6E24 File Offset: 0x000B5024
protected override bool IsOffscreenCore()
{
IsOffscreenBehavior isOffscreenBehavior = AutomationProperties.GetIsOffscreenBehavior(base.Owner);
if (isOffscreenBehavior == IsOffscreenBehavior.Onscreen)
{
return(false);
}
if (isOffscreenBehavior != IsOffscreenBehavior.Offscreen)
{
UIElement uielement;
Rect rect = this.CalculateBoundingRect(true, out uielement);
return(DoubleUtil.AreClose(rect, Rect.Empty) || uielement == null);
}
return(true);
}
/// <summary>Gets a value that indicates whether <see cref="T:System.Windows.Documents.TextElement" /> that is associated with this <see cref="T:System.Windows.Automation.Peers.TextElementAutomationPeer" /> is off of the screen. Called by <see cref="M:System.Windows.Automation.Peers.AutomationPeer.IsOffscreen" />.</summary>
/// <returns>
/// <see langword="true" /> if the element is not on the screen; otherwise, <see langword="false" />.</returns>
// Token: 0x0600284D RID: 10317 RVA: 0x000BC0FC File Offset: 0x000BA2FC
protected override bool IsOffscreenCore()
{
IsOffscreenBehavior isOffscreenBehavior = AutomationProperties.GetIsOffscreenBehavior(base.Owner);
if (isOffscreenBehavior == IsOffscreenBehavior.Onscreen)
{
return(false);
}
if (isOffscreenBehavior != IsOffscreenBehavior.Offscreen)
{
TextElement textElement = (TextElement)base.Owner;
ITextView textView = textElement.TextContainer.TextView;
return(textView == null || !textView.IsValid || (!textView.Contains(textElement.ContentStart) && !textView.Contains(textElement.ContentEnd)) || this.CalculateVisibleRect(textView, textElement, textElement.ContentStart, textElement.ContentEnd) == Rect.Empty);
}
return(true);
}
/// <summary>
/// <see cref="AutomationPeer.IsOffscreenCore"/>
/// </summary>
protected override bool IsOffscreenCore()
{
IsOffscreenBehavior behavior = AutomationProperties.GetIsOffscreenBehavior(Owner);
switch (behavior)
{
case IsOffscreenBehavior.Onscreen:
return(false);
case IsOffscreenBehavior.Offscreen:
return(true);
default:
{
UIElement uiScope;
Rect boundingRect = CalculateBoundingRect(true, out uiScope);
return(DoubleUtil.AreClose(boundingRect, Rect.Empty) || uiScope == null);
}
}
}
///
protected override bool IsOffscreenCore()
{
IsOffscreenBehavior behavior = AutomationProperties.GetIsOffscreenBehavior(_owner);
switch (behavior)
{
case IsOffscreenBehavior.Onscreen :
return false;
case IsOffscreenBehavior.Offscreen :
return true;
case IsOffscreenBehavior.FromClip:
{
bool isOffscreen = !_owner.IsVisible;
if (!isOffscreen)
{
UIElement containingUIElement = GetContainingUIElement(_owner);
if (containingUIElement != null)
{
Rect boundingRect = UIElementAutomationPeer.CalculateVisibleBoundingRect(containingUIElement);
isOffscreen = (DoubleUtil.AreClose(boundingRect, Rect.Empty) ||
DoubleUtil.AreClose(boundingRect.Height, 0) ||
DoubleUtil.AreClose(boundingRect.Width, 0));
}
}
return isOffscreen;
}
default :
return !_owner.IsVisible;
}
}
/// <summary>
/// Helper for setting IsOffscreenBehavior property on a DependencyObject.
/// </summary>
public static void SetIsOffscreenBehavior(DependencyObject element, IsOffscreenBehavior value)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
element.SetValue(IsOffscreenBehaviorProperty, value);
}
