void VirtualEarthBase_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
UIElement target = e.TargetObject as UIElement;
while (target != null
&& target != this
&& (GetLatitude(target) == 0.0
|| GetLongitude(target) == 0.0))
{
target = VisualTreeHelper.GetParent(target) as UIElement;
}
if (target != null && target != this)
{
double lat = GetLatitude(target);
double lon = GetLongitude(target);
WorldCoordinate bottomRight = ClientToWorld(new Point(ActualWidth, ActualHeight));
if (lat > CornerLatitude || lat < bottomRight.Latitude
|| lon < CornerLongitude || lon > bottomRight.Longitude)
{
ViewLatitude = lat;
ViewLongitude = lon;
}
}
}
private void method_0(object sender, RequestBringIntoViewEventArgs e)
{
if (!this.AllowBringIntoView)
{
e.Handled = true;
}
}
private void AusleihvorgaengeTab_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (ZinssatzComboBox.ItemsSource == null)
{
ZinssatzComboBox.ItemsSource = _kundeDetailPresenter.GetAlleZinssaetze();
AusleihUebersichtAktualisieren();
}
}
private void OnRequestBringIntoView(object sender, sw.RequestBringIntoViewEventArgs e)
{
var h = Handler as IGridHandler;
if (h == null)
{
return;
}
e.Handled = h.DisableAutoScrollToSelection;
}
void DiagramDesignerItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
// no need for a diagram link to be brought into view, since it will not be done correctly anyways
if (IsDiagramLink)
e.Handled = true;
else
{
e.Handled = false;
DiagramRubberbandSelector.IgnoreRubberbandSelectionOnce = true;
//ParentCanvas.CancelRubberbandSelection();
}
}
/// <summary>
/// Attempts to bring this element into view by originating a RequestBringIntoView event.
/// </summary>
public void BringIntoView()
{
RequestBringIntoViewEventArgs args = new RequestBringIntoViewEventArgs(this, Rect.Empty);
args.RoutedEvent=FrameworkElement.RequestBringIntoViewEvent;
RaiseEvent(args);
}
private void renderingTab_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
CustomVisualisationExpander.IsExpanded = false;
ItemsExpander.IsExpanded = false;
}
private void DataGrid_HandBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
private void HandleBringIntoView(RequestBringIntoViewEventArgs e)
{
TreeViewItem parent = ParentTreeViewItem;
while (parent != null)
{
if (!parent.IsExpanded)
{
parent.SetCurrentValueInternal(IsExpandedProperty, BooleanBoxes.TrueBox);
}
parent = parent.ParentTreeViewItem;
}
// See FrameworkElement.BringIntoView() comments
//dmitryt, bug 1126518. On new/updated elements RenderSize isn't yet computed
//so we need to postpone the rect computation until layout is done.
//this is accomplished by passing Empty rect here and then asking for RenderSize
//in IScrollInfo when it actually executes an async MakeVisible command.
if (e.TargetRect.IsEmpty)
{
FrameworkElement header = HeaderElement;
if (header != null)
{
e.Handled = true;
header.BringIntoView();
}
else
{
// Header is not generated yet. Could happen if BringIntoView is called on container before layout. Try later.
Dispatcher.BeginInvoke(DispatcherPriority.Loaded, new DispatcherOperationCallback(BringItemIntoView), null);
}
}
}
private void TreeViewItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
private void DesignerCanvas_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
private void RibbonTabBlockModel_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
string ss = e.ToString();
return;
}
public void BringIntoView(Rect targetRectangle)
{
RequestBringIntoViewEventArgs intoViewEventArgs = new RequestBringIntoViewEventArgs((DependencyObject) this, targetRectangle);
intoViewEventArgs.RoutedEvent = FrameworkElement.RequestBringIntoViewEvent;
this.RaiseEvent((RoutedEventArgs) intoViewEventArgs);
}
private void TabItem_RequestBringIntoView_1(object sender, RequestBringIntoViewEventArgs e)
{
Preset selectedPreset = presetList.SelectedItem as Preset;
if (selectedPreset != null)
{
updateSectors(selectedPreset);
updateSectorGui(selectedPreset);
}
}
private void OnRequestBringIntoView( object sender, RequestBringIntoViewEventArgs e )
{
TableViewItemsHost.ProcessRequestBringIntoView( this,
Orientation.Vertical,
0.5, // Default StableScrollingProportion
e );
}
/// <summary>
/// Note: this needs an interactive element (Button, TextBox etc.) in the view to fire.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void UserControl_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (this.DataContext == null) this.DataContext = new ViewModels.StringConstants();
}
private void OnRequestBringIntoView( object sender, RequestBringIntoViewEventArgs e )
{
if( e.Handled )
return;
Debug.Assert( this == sender );
var dataGridControl = this.ParentDataGridControl;
if( dataGridControl == null )
return;
// Prevent a BringIntoView to be requested twice when setting the focus on a cell.
if( dataGridControl.SettingFocusOnCell )
{
e.Handled = true;
return;
}
// Let the ScrollViewer handle this if the grid isn't virtualized.
var scrollViewer = TreeHelper.FindParent<ScrollViewer>( this );
if( ( scrollViewer == null ) || !scrollViewer.CanContentScroll )
return;
var targetVisual = e.TargetObject as Visual;
if( targetVisual == null )
return;
// Let the ScrollViewer handle this if the target is the container (i.e. HeaderFooterItem).
var container = this.GetContainerFromElement( targetVisual );
if( ( container == null ) || ( container == targetVisual ) )
return;
Debug.Assert( this.Children.Contains( container ) );
e.Handled = true;
var targetRect = e.TargetRect;
if( targetRect.IsEmpty )
{
var uiElement = TreeHelper.FindParent<UIElement>( targetVisual, true );
// If we have a container, we surely have a UIElement.
Debug.Assert( uiElement != null );
targetVisual = uiElement;
targetRect = new Rect( 0d, 0d, Math.Min( uiElement.RenderSize.Width, scrollViewer.ViewportWidth ), 0d );
}
var area = targetVisual.TransformToAncestor( container ).TransformBounds( targetRect );
if( area.Left < scrollViewer.HorizontalOffset )
{
scrollViewer.ScrollToHorizontalOffset( area.Left );
}
else if( area.Right > scrollViewer.HorizontalOffset + scrollViewer.ViewportWidth )
{
scrollViewer.ScrollToHorizontalOffset( Math.Min( area.Left, ( area.Right - scrollViewer.ViewportWidth ) ) );
}
}
private void setComboBindingAndHanldeUnsetValue(object sender, RequestBringIntoViewEventArgs e)
{
ComboBox combo = sender as ComboBox;
DataGridComboBoxColumn column = AssignedDataGridColumn as DataGridComboBoxColumn;
if (column.ItemsSource == null)
{
if (combo.ItemsSource != null)
{
IList list = combo.ItemsSource.Cast<object>().ToList();
if (list.Count > 0 && list[0] != DependencyProperty.UnsetValue)
{
combo.RequestBringIntoView -=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
list.Insert(0, DependencyProperty.UnsetValue);
combo.DisplayMemberPath = column.DisplayMemberPath;
combo.SelectedValuePath = column.SelectedValuePath;
combo.ItemsSource = list;
}
}
}
else
{
combo.RequestBringIntoView -=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
IList comboList = null;
IList columnList = null;
if (combo.ItemsSource != null)
{
comboList = combo.ItemsSource.Cast<object>().ToList();
}
columnList = column.ItemsSource.Cast<object>().ToList();
if (comboList == null ||
(columnList.Count > 0 && columnList.Count + 1 != comboList.Count))
{
columnList = column.ItemsSource.Cast<object>().ToList();
columnList.Insert(0, DependencyProperty.UnsetValue);
combo.ItemsSource = columnList;
}
combo.RequestBringIntoView +=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
}
}
static void tv_VerticalRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
var tv = sender as WPFControls.TreeView;
if (tv == null)
return;
var scrollViewer = tv.FindVisualDescendant<WPFControls.ScrollViewer>();
if (scrollViewer == null)
return;
SetCancelNextVerticalScrollEvent(tv, true);
SetOriginalVerticalOffset(tv, scrollViewer.VerticalOffset);
}
private void TreeViewItemRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (_treeViewScrollViewer == null)
{
_treeViewScrollViewer = TheNavigationView.Navigation.Template.FindName("_tv_scrollviewer_", TheNavigationView.Navigation) as ScrollViewer;
if (_treeViewScrollViewer != null)
_treeViewScrollViewer.ScrollChanged += TreeViewScrollViewerScrollChanged;
}
_treeViewResetHorizScroll = true;
var treeViewScrollViewer = _treeViewScrollViewer;
if (treeViewScrollViewer != null)
{
_treeViewHorizScrollPos = treeViewScrollViewer.HorizontalOffset;
}
}
/// <summary>
/// Attempts to bring the given rectangle of this element into view by originating a RequestBringIntoView event.
/// </summary>
public void BringIntoView(Rect targetRectangle)
{
RequestBringIntoViewEventArgs args = new RequestBringIntoViewEventArgs(this, targetRectangle);
args.RoutedEvent=RequestBringIntoViewEvent;
RaiseEvent(args);
}
private void AppRibbon_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
int x = 0;
}
private void TreeViewItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e) {
if (_swallowsRequestBringIntoView) {
// This prevents the tree view for scrolling horizontally to make the
// selected item as visibile as possible. This is useful for
// "SearchCode", as text extracts are usually wide enough to make tree
// view navigation annoying when they are selected.
e.Handled = true;
return;
}
// Find the scroll viewer and hook up scroll changed event handler.
if (this._treeViewScrollViewer == null) {
this._treeViewScrollViewer = this.FileTreeView.Template.FindName("_tv_scrollviewer_", this.FileTreeView) as ScrollViewer;
if (_treeViewScrollViewer != null) {
this._treeViewScrollViewer.ScrollChanged += this.TreeViewScrollViewer_ScrollChanged;
}
}
// If we got a scroll viewer, remember the horizontal offset so we can
// restore it in the scroll changed event.
if (_treeViewScrollViewer != null) {
this._treeViewResetHorizScroll = true;
this._treeViewHorizScrollPos = this._treeViewScrollViewer.HorizontalOffset;
}
e.Handled = false;
}
/// <summary>
/// stop this event from bubbling so that a scrollviewer doesn't try to BringIntoView..
/// </summary>
static void SwallowBringIntoViewRequest(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
bool? targetIsOnFrontSide = GetIsOnFrontSide(e.TargetObject);
if (!targetIsOnFrontSide.HasValue)
return;
if (targetIsOnFrontSide.Value)
this.BringFrontSideIntoView();
else
this.BringBackSideIntoView();
}
private static void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (e.TargetObject == sender)
{
((TreeViewItem)sender).HandleBringIntoView(e);
}
}
/// <summary>
/// OnRequestBringIntoView is called from the event handler ScrollViewer registers for the event.
/// The default implementation checks to make sure the visual is a child of the IScrollInfo, and then
/// delegates to a method there
/// </summary>
/// <param name="sender">The instance handling the event.</param>
/// <param name="e">RequestBringIntoViewEventArgs indicates the element and region to scroll into view.</param>
private static void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
ScrollViewer sv = sender as ScrollViewer;
Visual child = e.TargetObject as Visual;
if (child != null)
{
//the event starts from the elemetn itself, so if it is an SV.BringINtoView we would
//get an SV trying to bring into view itself - this does not work obviously
//so don't handle if the request is about ourselves, the event will bubble
if (child != sv && child.IsDescendantOf(sv))
{
e.Handled = true;
sv.MakeVisible(child, e.TargetRect);
}
}
else
{
ContentElement contentElement = e.TargetObject as ContentElement;
if (contentElement != null)
{
// We need to find the containing Visual and the bounding box for this element.
IContentHost contentHost = ContentHostHelper.FindContentHost(contentElement);
child = contentHost as Visual;
if (child != null && child.IsDescendantOf(sv))
{
ReadOnlyCollection<Rect> rects = contentHost.GetRectangles(contentElement);
if (rects.Count > 0)
{
e.Handled = true;
sv.MakeVisible(child, rects[0]);
}
}
}
}
}
//Marking e.Handled = true to avoid scrolling in large workflows to bring the
//area of a connector in the center of the view region.
//Area covered by a connector includes the region between 0,0 of the panel and the edges of the connector.
void OnConnectorRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
/// <summary>
/// Handles the RequestBringIntoView routed event in the case where the element to be
/// brought into view is DocumentGrid itself, as is the case when the TextEditor's IP moves.
/// In this case we use the incoming target rectangle
/// and ensure that rect is made visible inside of DocumentGrid.
/// </summary>
/// <param name="sender">The sender of this routed event, expected to be a DocumentGrid.</param>
/// <param name="args">The RequestBringIntoView event args associated with this event.</param>
private static void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs args)
{
//We only handle this here if the sender and the target of this event are both the same
//DocumentGrid.
DocumentGrid senderGrid = sender as DocumentGrid;
DocumentGrid targetGrid = args.TargetObject as DocumentGrid;
if (senderGrid != null && targetGrid != null && senderGrid == targetGrid)
{
//Bring the IP into view and mark the event as handled.
args.Handled = true;
targetGrid.MakeIPVisible(args.TargetRect);
}
else
{
args.Handled = false;
}
}
private void Popup_ScrollViewer_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = true;
}
private void OnRequestBringIntoView( object sender, RequestBringIntoViewEventArgs e )
{
// Only perform this if we are virtualizing.
// If not, the ScrollViewer will take care of bringing the item into view.
if( ( this.ScrollOwner == null ) || ( !this.ScrollOwner.CanContentScroll ) )
return;
// Only perform this if the StableScrolling feature is enabled.
if( !this.StableScrollingEnabled )
return;
// If we are explicitly setting the focus on a cell, we don't want to bring it into view.
// A bringIntoView would cause the HorizontalOffset to change is not a wanted behavior.
// Therefore, flag the Request as handled and do nothing.
DataGridContext dataGridContext = DataGridControl.GetDataGridContext( this );
DataGridControl dataGridControl = ( dataGridContext != null )
? dataGridContext.DataGridControl
: null;
if( ( dataGridControl != null ) && ( dataGridControl.SettingFocusOnCell ) )
{
e.Handled = true;
return;
}
// Only perform this if the object is NOT a Cell and was not passed a specific rectangle.
if( ( e.TargetObject is Cell ) || ( e.TargetRect != Rect.Empty ) )
return;
// Before performing calculations, ensure that the element is a UIElement.
FrameworkElement target = e.TargetObject as FrameworkElement;
if( ( target == null ) || ( target.IsDescendantOf( this ) == false ) )
return;
Orientation orientation = this.Orientation;
//mark the routed event as handled, since under even the worst circumstances, a new event will be raised.
e.Handled = true;
double acceptableThreshold;
double actualVisibleValue;
GeneralTransform itemToPanel = target.TransformToAncestor( this );
Point itemOrigin = itemToPanel.Transform( new Point( 0, 0 ) );
//Calculate the VisibleWidth/Height of the object within the Viewport.
if( orientation == Orientation.Vertical )
{
acceptableThreshold = this.ViewportWidth * this.StableScrollingProportion;
//item offset is positive in the viewport.
if( itemOrigin.X >= 0 )
{
//if the item is totally visible
if( target.ActualWidth + itemOrigin.X <= this.ViewportWidth )
{
//this will force the function to "cancel" the BringIntoView
actualVisibleValue = this.ViewportWidth;
}
else
{
//item is not totally visible, calculate how much place it occupies in the viewport.
actualVisibleValue = this.ViewportWidth - itemOrigin.X;
}
}
//item offset is negative
else
{
actualVisibleValue = target.ActualWidth - itemOrigin.X;
if( actualVisibleValue > this.ViewportWidth )
{
//limit the value of actualVisibleValue to the Viewport size (to prevent eventual bugs [even if nothing is visible on the horizon for this])
actualVisibleValue = this.ViewportWidth;
}
}
}
else
{
acceptableThreshold = this.ViewportHeight * this.StableScrollingProportion;
//item offset is positive in the viewport.
if( itemOrigin.Y >= 0 )
{
//if the item is totally visible
if( target.ActualHeight + itemOrigin.Y <= this.ViewportHeight )
{
//this will force the function to "cancel" the BringIntoView
actualVisibleValue = this.ViewportHeight;
}
else
{
//item is not totally visible, calculate how much place it occupies in the viewport.
actualVisibleValue = this.ViewportHeight - itemOrigin.Y;
}
}
//item offset is negative
else
{
actualVisibleValue = target.ActualHeight - itemOrigin.Y;
if( actualVisibleValue > this.ViewportHeight )
{
//limit the value of actualVisibleValue to the Viewport size (to prevent eventual bugs [even if nothing is visible on the horizon for this])
actualVisibleValue = this.ViewportHeight;
}
}
}
bool needBringIntoView = false;
Rect newRect = new Rect( 0, 0, target.ActualWidth, target.ActualHeight );
//After the proportion visible from the object is calculated, compare with threshold
if( actualVisibleValue < acceptableThreshold )
{
needBringIntoView = true;
//the required threshold is not visible, modify the bounds of the rectangle
//to bring at Max, the desired threshold.
if( orientation == Orientation.Vertical )
{
if( itemOrigin.X >= 0 )
{
newRect.Width = Math.Min( acceptableThreshold, target.ActualWidth );
}
else
{
newRect.X = target.ActualWidth - acceptableThreshold;
if( newRect.X < 0 )
{
newRect.X = 0;
}
}
}
else
{
if( itemOrigin.Y >= 0 )
{
newRect.Height = Math.Min( acceptableThreshold, target.ActualHeight );
}
else
{
newRect.Y = target.ActualHeight - acceptableThreshold;
if( newRect.Y < 0 )
{
newRect.Y = 0;
}
}
}//end else orientation is Horizontal
} // end if actuallyVisible < acceptable threshold
else
{
//Determine if the item is totally or partially visible on the main scrolling axis.
if( orientation == Orientation.Vertical )
{
//If the Offset is negative, then it's sure its not totally visible
if( itemOrigin.Y < 0 )
{
needBringIntoView = true;
}
else if( ( ( itemOrigin.Y + target.DesiredSize.Height ) > this.RenderSize.Height ) && ( target.DesiredSize.Height < this.RenderSize.Height ) )
{
needBringIntoView = true;
}
}
else
{
//If the Offset is negative, then it's sure its not totally visible
if( itemOrigin.X < 0 )
{
needBringIntoView = true;
}
else if( ( ( itemOrigin.X + target.DesiredSize.Width ) > this.RenderSize.Width ) && ( target.DesiredSize.Width < this.RenderSize.Width ) )
{
needBringIntoView = true;
}
}
//if the item need to be scrolled in view
if( needBringIntoView == true )
{
//the goal is to preserve the actual opposed axis scrolling
if( orientation == Orientation.Vertical )
{
//calculate the starting point of the rectangle to view.
newRect.X = itemOrigin.X * -1;
if( newRect.X < 0 )
{
newRect.X = 0;
}
//if the item to be brough into view is part of the elements in a TableView that do no scroll
if( ( dataGridControl != null )
&& ( dataGridControl.GetView() is TableView )
&& ( this.ComputedCanScrollHorizontally( target ) == false ) )
{
//then do not change the HorizontalOffset... set the same on the object as previously availlable.
newRect.X = this.HorizontalOffset;
}
//if the rectangle of the object goes beyond the Viewport
if( newRect.Right > this.ViewportWidth )
{
//subtract what goes beyond!
newRect.Width = newRect.Width - ( newRect.Width - this.ViewportWidth ) - Math.Max( itemOrigin.X, 0 );
}
}
else
{
//calculate the staring point if the rectangle to view.
newRect.Y = itemOrigin.Y * -1;
if( newRect.Y < 0 )
{
newRect.Y = 0;
}
//if the rectangle of the object goes beyond the Viewport
if( newRect.Bottom > this.ViewportHeight )
{
//subtract what goes beyond!
newRect.Height = newRect.Height - ( newRect.Height - this.ViewportHeight ) - Math.Max( itemOrigin.Y, 0 );
}
}
} // end if needBringIntoView == true
} // end else
//Call a new BringIntoView on the target element
if( needBringIntoView == true )
target.BringIntoView( newRect );
}
