public DataGridEx()
{
this.Background = new SolidColorBrush(Colors.Transparent);
// VirtualizintStackPanel
VirtualizingStackPanel.SetIsVirtualizing(this, true);
VirtualizingStackPanel.SetVirtualizationMode(this, VirtualizationMode.Recycling);
}
private static TreeViewItem GetTreeViewItem(TreeView treeView, TreeItemViewModel newValue)
{
if (newValue == null)
{
return(null);
}
TreeViewItem treeViewItem = treeView.ItemContainerGenerator.ContainerFromItem(newValue) as TreeViewItem;
if (treeViewItem == null)
{
treeView.UpdateLayout();
treeViewItem = treeView.ItemContainerGenerator.ContainerFromItem(newValue) as TreeViewItem;
}
if (treeViewItem == null)
{
int?index = GetIndex(treeView, newValue);
if (index.HasValue)
{
ItemsPresenter presenter = treeView.Template.FindName("ItemsPresenter", treeView) as ItemsPresenter;
VirtualizingStackPanel itemsHostPanel = VisualTreeHelper.GetChild(presenter, 0) as VirtualizingStackPanel;
itemsHostPanel.BringIndexIntoViewPublic(index.Value);
treeViewItem = treeView.ItemContainerGenerator.ContainerFromIndex(index.Value) as TreeViewItem;
}
}
return(treeViewItem);
}
protected override void OnItemsSourceChanged(IEnumerable oldValue, IEnumerable newValue)
{
base.OnItemsSourceChanged(oldValue, newValue);
var oldCollection = oldValue as INotifyCollectionChanged;
var newCollection = newValue as INotifyCollectionChanged;
if (oldCollection != null)
{
CollectionChangedEventManager.RemoveListener(oldCollection, this);
}
if (newCollection != null)
{
CollectionChangedEventManager.AddListener(newCollection, this);
}
if (!this.IsInitialized)
{
return;
}
if (!VirtualizingStackPanel.GetIsVirtualizing(this) ||
(VirtualizingStackPanel.GetIsVirtualizing(this) && (newValue != null)))
{
this.RemoveUnavailableSelectedItems();
}
this.UpdateSelectedMemberPathValuesBindings();
this.UpdateValueMemberPathValuesBindings();
}
public TimelinePanel()
{
InitializeComponent();
/*Timer timer = new Timer();
* timer.Elapsed += new ElapsedEventHandler(refresh_Timeline);
* timer.Interval = 60000;
* timer.Enabled = true;*/
if (MastodonAPIWrapper.sharedApiWrapper.nightModeEnabled)
{
this.Background = new SolidColorBrush(Color.FromArgb(255, 26, 26, 26));
title.Foreground = Brushes.White;
timelineBox.Background = new SolidColorBrush(Color.FromArgb(255, 50, 50, 50));
}
try
{
VirtualizingStackPanel.SetScrollUnit(timelineBox, ScrollUnit.Pixel);
VirtualizingStackPanel.SetIsVirtualizing(timelineBox, true);
VirtualizingStackPanel.SetVirtualizationMode(timelineBox, VirtualizationMode.Recycling);
ScrollViewer.SetCanContentScroll(timelineBox, true);
}
catch (Exception)
{
}
}
private static void OnIsPivotAnimatedChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
{
LongListSelector list = d as LongListSelector;
list.Loaded += (s2, e2) =>
{
// locate the pivot control that this list is within
Pivot pivot = list.Ancestors <Pivot>().Single() as Pivot;
// and its index within the pivot
int pivotIndex = pivot.Items.IndexOf(list.Ancestors <PivotItem>().Single());
bool selectionChanged = false;
pivot.SelectionChanged += (s3, e3) =>
{
selectionChanged = true;
};
// handle manipulation events which occur when the user
// moves between pivot items
pivot.ManipulationCompleted += (s, e) =>
{
if (!selectionChanged)
{
return;
}
selectionChanged = false;
if (pivotIndex != pivot.SelectedIndex)
{
return;
}
// determine which direction this tab will be scrolling in from
bool fromRight = e.TotalManipulation.Translation.X <= 0;
// locate the stack panel that hosts the items
VirtualizingStackPanel vsp = list.Descendants <VirtualizingStackPanel>().First() as VirtualizingStackPanel;
// iterate over each of the items in view
var itemsInView = list.GetVisualAncestors();
foreach (ContentPresenter item in itemsInView)
{
var localItem = item;
list.Dispatcher.BeginInvoke(() =>
{
var animationTargets = localItem.Descendants().Where(p => GetAnimationLevel(p) > -1);
foreach (FrameworkElement target in animationTargets)
{
// trigger the required animation
GetAnimation(target, fromRight).Begin();
}
});
}
};
};
}
//Monitor and handle the scroll viewer
private async void ScrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
try
{
//Get current scroll item
VirtualizingStackPanel virtualizingStackPanel = AVFunctions.FindVisualChild <VirtualizingStackPanel>(ListView_Items);
Int32 CurrentOffSetId = (virtualizingStackPanel.Orientation == Orientation.Horizontal) ? (Int32)virtualizingStackPanel.HorizontalOffset : (Int32)virtualizingStackPanel.VerticalOffset;
//Update the current item count
textblock_StatusCurrentItem.Tag = (CurrentOffSetId + 1).ToString();
Int32 HeaderTargetSize = Convert.ToInt32(stackpanel_Header.Tag);
Int32 HeaderCurrentSize = Convert.ToInt32(stackpanel_Header.Height);
if (HeaderCurrentSize == HeaderTargetSize || AppVariables.CurrentTotalItemsCount == 0)
{
textblock_StatusCurrentItem.Text = textblock_StatusCurrentItem.Tag.ToString();
}
else
{
textblock_StatusCurrentItem.Text = textblock_StatusCurrentItem.Tag.ToString() + "/" + AppVariables.CurrentTotalItemsCount;
}
//Update the shown item content
await EventsScrollViewer.ScrollViewerUpdateContent(ListView_Items, CurrentOffSetId);
//Check if new items need to be loaded
await EventsScrollViewer.ScrollViewerAddItems(ListView_Items, CurrentOffSetId);
}
catch { }
}
public S7FunctionBlockRow getFirstVisbleExpandedItem()
{
Network nw = null;
VirtualizingStackPanel panel = UIHelpers.TryFindChild <VirtualizingStackPanel>(myLst);
//ScrollViewer panel = UIHelpers.TryFindChild<ScrollViewer>(myLst);
if (myLst.Items.Count > 0 && panel != null)
{
int offset = (panel.Orientation == Orientation.Horizontal) ? (int)panel.HorizontalOffset : (int)panel.VerticalOffset;
//var item = UIHelpers.TryFindFromPoint<ListBoxItem>(myLst, new Point(myLst.po, panel.HorizontalOffset));
var item = myLst.Items[offset];
int idx = myLst.Items.IndexOf(item);
for (int n = idx; n < myLst.Items.Count; n++)
{
var exp = UIHelpers.TryFindChild <Expander>(myLst.ItemContainerGenerator.ContainerFromIndex(n));
if (exp.IsExpanded)
{
return((S7FunctionBlockRow)((S7FunctionBlockNetwork)myLst.Items[n]).AWLCode[0]);
}
}
}
return(null);
}
private WatermarkTextBox CreateReplyTextBox(ListBox panel)
{
var inputScope = new InputScope();
inputScope.Names.Add(new InputScopeName()
{
NameValue = InputScopeNameValue.Chat
});
var textBox = new WatermarkTextBox();
textBox.AcceptsReturn = true;
textBox.TextWrapping = TextWrapping.Wrap;
textBox.VerticalScrollBarVisibility = ScrollBarVisibility.Visible;
textBox.InputScope = inputScope;
textBox.WatermarkText = "댓글";
textBox.Margin = new Thickness(-10, 0, -10, 0);
textBox.SizeChanged += (o1, e1) =>
{
if (FocusManager.GetFocusedElement() == textBox)
{
VirtualizingStackPanel vstackPanel = (VirtualizingStackPanel)GetChildren(panel).FirstOrDefault(dobj => dobj is VirtualizingStackPanel);
if (vstackPanel != null)
{
vstackPanel.SetVerticalOffset(vstackPanel.ExtentHeight - vstackPanel.ViewportHeight);
}
}
};
textBox.GotFocus += (o1, e1) => UpdateAppBar();
textBox.LostFocus += (o1, e1) => UpdateAppBar();
return(textBox);
}
//gets the number of visuals loaded for a particular virtualizing stack panel
private static int GetVisualCount(DependencyObject visual)
{
int visualCount = -1;
int childCount = VisualTreeHelper.GetChildrenCount(visual);
for (int i = 0; i < childCount; i++)
{
DependencyObject child = VisualTreeHelper.GetChild(visual, i) as DependencyObject;
//get the child of the stack panel
StackPanel panel = child as StackPanel;
if (panel != null)
{
return(panel.Children.Count);
}
else
{
//try to parse as a Virtualizing stackPanel
VirtualizingStackPanel vpanel = child as VirtualizingStackPanel;
if (vpanel != null)
{
return(vpanel.Children.Count);
}
else
{
visualCount = GetVisualCount(child);
if (visualCount != -1)
{
return(visualCount);
}
}
}
}
return(visualCount);
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
GameField Game = ((App)(Application.Current)).Game;
int offset, gameModeIndex;
PanelX = FindVisualChild <VirtualizingStackPanel>(FieldSizeX);
PanelY = FindVisualChild <VirtualizingStackPanel>(FieldSizeY);
offset = Game.x - sizeFieldOptions[0];
PanelX.SetVerticalOffset(offset);
offset = Game.y - sizeFieldOptions[0];
PanelY.SetVerticalOffset(offset);
switch (Game.GameMode)
{
case GameMode.Player1Player2:
gameModeIndex = 0;
break;
case GameMode.Player1Computer:
gameModeIndex = 1;
break;
default:
gameModeIndex = 0;
break;
}
GameModeList.SelectedIndex = gameModeIndex;
}
void RefreshDisplayArea()
{
var oldFirst = FirstVisibleIndex;
var oldLast = LastVisibleIndex;
if (ItemsSource != null)
{
var isVirtualizing = VirtualizingStackPanel.GetIsVirtualizing(this);
if (!isVirtualizing)
{
CalculateVisibleIndex();
}
else if (_orientation == Orientation.Vertical)
{
FirstVisibleIndex = (int)_scrollView.VerticalOffset;
var lastIndex = Math.Min(Items.Count - 1, _scrollView.VerticalOffset + _scrollView.ViewportHeight);
LastVisibleIndex = (int)lastIndex;
}
else
{
FirstVisibleIndex = (int)_scrollView.HorizontalOffset;
var lastIndex = Math.Min(Items.Count - 1, _scrollView.HorizontalOffset + _scrollView.ViewportWidth);
LastVisibleIndex = (int)lastIndex;
}
}
else
{
CalculateVisibleIndex();
}
RefreshItemsVisualState(oldFirst, FirstVisibleIndex, oldLast, LastVisibleIndex);
}
/// <summary>
/// Causes the object to scroll into view centered.
/// </summary>
/// <param name="listBox">ListBox instance.</param>
/// <param name="item">Object to scroll.</param>
//[SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters",
// Justification = "Deliberately targeting ListBox.")]
public static void ScrollIntoViewTop(this ListBox listBox, object item)
{
Debug.Assert(!VirtualizingStackPanel.GetIsVirtualizing(listBox),
"VirtualizingStackPanel.IsVirtualizing must be disabled for ScrollIntoViewCentered to work.");
// Get the container for the specified item
var container = listBox.ItemContainerGenerator.ContainerFromItem(item) as FrameworkElement;
if (null != container)
{
if (ScrollViewer.GetCanContentScroll(listBox))
{
// Get the parent IScrollInfo
var scrollInfo = VisualTreeHelper.GetParent(container) as IScrollInfo;
if (null != scrollInfo)
{
// Need to know orientation, so parent must be a known type
var stackPanel = scrollInfo as StackPanel;
var virtualizingStackPanel = scrollInfo as VirtualizingStackPanel;
Debug.Assert((null != stackPanel) || (null != virtualizingStackPanel),
"ItemsPanel must be a StackPanel or VirtualizingStackPanel for ScrollIntoViewCentered to work.");
// Get the container's index
var index = listBox.ItemContainerGenerator.IndexFromContainer(container);
// Center the item by splitting the extra space
if (((null != stackPanel) && (Orientation.Horizontal == stackPanel.Orientation)) ||
((null != virtualizingStackPanel) && (Orientation.Horizontal == virtualizingStackPanel.Orientation)))
{
//scrollInfo.SetHorizontalOffset(index - Math.Floor(scrollInfo.ViewportWidth / 2));
scrollInfo.SetHorizontalOffset(index);
}
else
{
//scrollInfo.SetVerticalOffset(index - Math.Floor(scrollInfo.ViewportHeight / 2));
scrollInfo.SetVerticalOffset(index);
}
}
}
else
{
// Get the bounds of the item container
var rect = new Rect(new Point(), container.RenderSize);
// Find constraining parent (either the nearest ScrollContentPresenter or the ListBox itself)
FrameworkElement constrainingParent = container;
do
{
constrainingParent = VisualTreeHelper.GetParent(constrainingParent) as FrameworkElement;
} while ((null != constrainingParent) &&
(listBox != constrainingParent) &&
!(constrainingParent is ScrollContentPresenter));
if (null != constrainingParent)
{
// Inflate rect to fill the constraining parent
rect.Inflate(
Math.Max((constrainingParent.ActualWidth - rect.Width) / 2, 0),
Math.Max((constrainingParent.ActualHeight - rect.Height) / 2, 0));
}
// Bring the (inflated) bounds into view
container.BringIntoView(rect);
}
}
}
/// <summary>
/// Enumerates all the items that are currently visible in an ItemsControl. This
/// implementation works for both virtualized and non-virtualized panels.
/// </summary>
public static IEnumerable <FrameworkElement> GetItemsInView(this ItemsControl itemsControl)
{
// find the panel that hosts our items - this is 'cached'
// using the ItemsControl.Tag property to minimize visual tree
// navigation
Panel itemsHostPanel = itemsControl.Tag as Panel;
if (itemsHostPanel == null)
{
itemsHostPanel = itemsControl.Descendants <Panel>()
.Cast <Panel>()
.Where(p => p.IsItemsHost)
.SingleOrDefault();
itemsControl.Tag = itemsHostPanel;
}
VirtualizingStackPanel vsp = itemsHostPanel as VirtualizingStackPanel;
if (vsp != null)
{
// implementation for virtualizing lists
return(GetItemsInView(itemsControl, vsp));
}
else
{
// implementation for non-virtualizing lists
return(Enumerable.Range(0, itemsControl.Items.Count)
.Select(index => itemsControl.ItemContainerGenerator.ContainerFromIndex(index))
.Cast <FrameworkElement>()
.Where(container => container.GetRelativePosition(itemsControl).Y + container.ActualHeight > 0)
.Where(container => container.GetRelativePosition(itemsControl).Y - container.ActualHeight < itemsControl.ActualHeight));
}
}
/// <summary>
/// Registrating an item of the list.
/// </summary>
/// <param name="index">An index of item into the source collection.</param>
/// <returns></returns>
protected override FrameworkElement ItemRegistration(int index)
{
// Getting base element.
var element = base.ItemRegistration(index);
// Adding spliters if requested.
if (SplitersDraw)
{
// Instiniating panel that will contains the layout.
var panel = new VirtualizingStackPanel()
{
Orientation = Orientation.Vertical
};
// Instiniating spliter.
var spliter = new Grid()
{
Height = 1,
MaxHeight = 1,
Background = SpliterColor,
Margin = new Thickness(-3, 3, -3, 0),
IsHitTestVisible = false
};
// Add new elements to the layout parent.
panel.Children.Add(element);
panel.Children.Add(spliter);
// Returning parent as target element.
return(panel);
}
// Returning defult element.
return(element);
}
public FolderDataPersenter(ContextMenu folderContextMenu)
{
VirtualizingStackPanel.SetIsVirtualizing(this, true);
this.Focusable = false;
this.folderContextMenu = folderContextMenu;
this.ContextMenu = folderContextMenu;
}
public static void SetStyles()
{
Eto.Style.Add <Eto.Forms.Button>("main", button =>
{
var wpfbutton = (Button)button.ControlObject;
wpfbutton.BorderThickness = new Thickness(0.0);
var img = (Image)((Grid)wpfbutton.Content).Children[0];
img.Margin = new Thickness(5.0d);
var label = (Label)((Grid)wpfbutton.Content).Children[1];
label.HorizontalAlignment = HorizontalAlignment.Left;
TextOptions.SetTextRenderingMode(label, TextRenderingMode.Auto);
});
Eto.Style.Add <Eto.Forms.Button>("donate", button =>
{
var wpfbutton = (Button)button.ControlObject;
wpfbutton.BorderThickness = new Thickness(0.0);
var img = (Image)((Grid)wpfbutton.Content).Children[0];
img.Margin = new Thickness(5.0d);
var label = (Label)((Grid)wpfbutton.Content).Children[1];
label.HorizontalAlignment = HorizontalAlignment.Left;
TextOptions.SetTextRenderingMode(label, TextRenderingMode.Auto);
});
Eto.Style.Add <Eto.Forms.Panel>("transparent-form", control =>
{
var wpfwnd = (System.Windows.Window)control.ControlObject;
TextOptions.SetTextRenderingMode(wpfwnd, TextRenderingMode.Auto);
wpfwnd.AllowsTransparency = true;
wpfwnd.Background = Brushes.Transparent;
});
Eto.Style.Add <Eto.Forms.TextBox>("textbox-rightalign", control =>
{
var tbox = (System.Windows.Controls.TextBox)control.ControlObject;
tbox.TextAlignment = TextAlignment.Right;
});
Eto.Style.Add <Eto.Forms.GridView>("spreadsheet", control =>
{
var wpfgrid = (Eto.Wpf.Forms.Controls.EtoDataGrid)control.ControlObject;
wpfgrid.SelectionUnit = DataGridSelectionUnit.Cell;
var style = new Style(typeof(DataGridColumnHeader));
style.Setters.Add(new Setter(DataGrid.HorizontalContentAlignmentProperty, HorizontalAlignment.Center));
wpfgrid.ColumnHeaderStyle = style;
wpfgrid.ColumnWidth = new DataGridLength(100, DataGridLengthUnitType.Pixel);
wpfgrid.HeadersVisibility = DataGridHeadersVisibility.All;
wpfgrid.RowHeaderWidth = 50;
wpfgrid.EnableColumnVirtualization = true;
wpfgrid.EnableRowVirtualization = true;
VirtualizingPanel.SetVirtualizationMode(wpfgrid, VirtualizationMode.Recycling);
VirtualizingStackPanel.SetIsVirtualizing(wpfgrid, true);
wpfgrid.LoadingRow += (sender, e) =>
{
e.Row.Header = (e.Row.GetIndex() + 1).ToString();
};
wpfgrid.UpdateLayout();
});
}
/// <summary>
/// Initializes a new instance of this control.
/// </summary>
public InnerList()
: base()
{
// This flag is needed to dramatically increase performance of scrolling \\
VirtualizingStackPanel.SetVirtualizationMode(this, VirtualizationMode.Recycling);
AutomationProperties.SetAutomationId(this, "InnerList"); // No localization needed
}
public CarouselPageRenderer()
{
VirtualizingStackPanel.SetVirtualizationMode(this, VirtualizationMode.Standard);
ItemTemplate = (Windows.UI.Xaml.DataTemplate)Windows.UI.Xaml.Application.Current.Resources["ContainedPageTemplate"];
SelectionChanged += OnSelectionChanged;
Loaded += OnLoaded;
Unloaded += OnUnloaded;
}
private async Task ApplyFlipViewOrientation(Orientation orientation)
{
await RunOnUIThreadAsync(CoreDispatcherPriority.Normal, () =>
{
VirtualizingStackPanel panel = (VirtualizingStackPanel)FlipViewPages.ItemsPanelRoot;
panel.Orientation = orientation;
});
}
private static void PrintListBoxState(ItemsControl listBox, StringBuilder outPut)
{
outPut.AppendLine("ListBoxの状態");
outPut.AppendLine(listBox.ItemContainerGenerator.Status.ToString());
outPut.AppendLine(string.Format("ItemsPanel: {0}", listBox.ItemsPanel.VisualTree.Type));
outPut.AppendLine(string.Format("{0}", VirtualizingStackPanel.GetVirtualizationMode(listBox)));
outPut.AppendLine(string.Format("{0}", BAR));
}
private void ListBox_Loaded(object sender, RoutedEventArgs e)
{
if (_isInitialized)
{
return;
}
_isInitialized = true;
AddHandler(ManipulationCompletedEvent, new EventHandler <ManipulationCompletedEventArgs>(ListBox_ManipulationCompleted), true);
_scrollViewer = this.FindChildOfType <ScrollViewer>();
if (_scrollViewer != null)
{
_stackPanel = _scrollViewer.FindChildOfType <VirtualizingStackPanel>();
if (IsHorizontal)
{
ToHorizontalOrientation();
}
else
{
ToVerticalOrientation();
}
// Visual States are always on the first child of the control template
var element = VisualTreeHelper.GetChild(_scrollViewer, 0) as FrameworkElement;
if (element != null)
{
var verticalGroup = FindVisualState(element, VerticalCompressionGroup);
var horizontalGroup = FindVisualState(element, HorizontalCompressionGroup);
var scrollStatesGroup = FindVisualState(element, ScrollStatesGroup);
if (verticalGroup != null)
{
verticalGroup.CurrentStateChanging += VerticalGroup_CurrentStateChanging;
}
if (horizontalGroup != null)
{
horizontalGroup.CurrentStateChanging += HorizontalGroup_CurrentStateChanging;
}
if (scrollStatesGroup != null)
{
scrollStatesGroup.CurrentStateChanging += ScrollStateGroup_CurrentStateChanging;
}
}
if (!SuppressVerticalOffsetListener)
{
var binding = new Binding("VerticalOffset")
{
Source = _scrollViewer
};
SetBinding(VerticalOffsetProperty, binding);
}
}
}
private void DynamicGrid_Loaded(object sender, RoutedEventArgs e)
{
VirtualizingStackPanel itemsPanel = GetVisualChild <VirtualizingStackPanel>(DynamicItems);
if (itemsPanel != null && itemsPanel.IsItemsHost)
{
itemsPanel.PreviewMouseLeftButtonDown += delegate { MessageBox.Show("WPF"); };
}
}
private static void InvokeBringIndexIntoView(VirtualizingStackPanel panel, int index)
{
var itemsOwner = ItemsControl.GetItemsOwner(panel);
if (itemsOwner != null && index >= 0 && index < itemsOwner.Items.Count)
{
s_bringIntoViewMethod.Invoke(panel, new object[] { index });
}
}
/// <summary>
/// Helper method which invalidate the underlying itemshost's measure and arrange
/// </summary>
/// <param name="withColumnVirtualization">
/// True to invalidate only when virtualization is on.
/// False to invalidate only when virtualization is off.
/// </param>
private void InvalidateDataGridCellsPanelMeasureAndArrange(bool withColumnVirtualization)
{
// Invalidates measure and arrange if the flag and the virtualization
// are either both true or both false.
if (withColumnVirtualization == VirtualizingStackPanel.GetIsVirtualizing(this))
{
InvalidateDataGridCellsPanelMeasureAndArrange();
}
}
/// <summary>
/// Retrieves the ListBox's items panel as VirtualizingStackPanel.
/// </summary>
/// <param name="listBox">The ListBox</param>
/// <returns>The item panel or null if no VirtualizingStackPanel was found</returns>
public static VirtualizingStackPanel GetPanel(this ListBox listBox)
{
VirtualizingStackPanel panel = UIHelpers.TryFindChild <VirtualizingStackPanel>(listBox);
if (panel == null)
{
Debug.WriteLine("No VirtualizingStackPanel found for ListBox.");
}
return(panel);
}
private ComboBoxItem GetComboxItem(ComboBox container)
{
if (container != null)
{
// Try to generate the ItemsPresenter and the ItemsPanel.
// by calling ApplyTemplate. Note that in the
// virtualizing case even if the item is marked
// expanded we still need to do this step in order to
// regenerate the visuals because they may have been virtualized away.
container.ApplyTemplate();
ItemsPresenter itemsPresenter = FindVisualChild <ItemsPresenter>(container);
if (itemsPresenter == null)
{
container.UpdateLayout();
itemsPresenter = FindVisualChild <ItemsPresenter>(container);
}
Panel itemsHostPanel = (Panel)VisualTreeHelper.GetChild(itemsPresenter, 0);
// Ensure that the generator for this panel has been created.
UIElementCollection children = itemsHostPanel.Children;
VirtualizingStackPanel virtualizingPanel =
itemsHostPanel as VirtualizingStackPanel;
for (int i = 0, count = container.Items.Count; i < count; i++)
{
ComboBoxItem subContainer;
if (virtualizingPanel != null)
{
// Bring the item into view so
// that the container will be generated.
//virtualizingPanel.BringIntoView(i);
subContainer =
(ComboBoxItem)container.ItemContainerGenerator.
ContainerFromIndex(i);
}
else
{
subContainer =
(ComboBoxItem)container.ItemContainerGenerator.
ContainerFromIndex(i);
// Bring the item into view to maintain the
// same behavior as with a virtualizing panel.
subContainer.BringIntoView();
}
}
}
return(null);
}
public TabPlaylist()
{
this.InitializeComponent();
#if NET40
//VirtualizingStackPanel.IsVirtualizingWhenGrouping is not supported.
//The behaviour which requires this feature is disabled.
#else
VirtualizingStackPanel.SetIsVirtualizingWhenGrouping(this.ListView, true);
#endif
this.IsVisibleChanged += this.OnIsVisibleChanged;
}
private void ScrollQuestionsTo(int index)
{
VirtualizingStackPanel vsp =
(VirtualizingStackPanel)typeof(ItemsControl).InvokeMember("_itemsHost",
BindingFlags.Instance | BindingFlags.GetField | BindingFlags.NonPublic, null,
lvQuestions, null);
double scrollHeight = vsp.ScrollOwner.ScrollableHeight;
double offset = scrollHeight * index / lvQuestions.Items.Count;
vsp.SetVerticalOffset(offset);
}
private void ImagesView_LayoutUpdated(object sender, object e)
{
if (VSP == null)
{
VSP = ImagesView.ChildAt <VirtualizingStackPanel>(0, 0, 0, 0, 0, 0, 1);
}
if (VSP != null && TryResetZoom(ImagesView.SelectedItem))
{
ImagesView.LayoutUpdated -= ImagesView_LayoutUpdated;
}
}
private void Analyze(bool full)
{
var state = GetCurrentState();
var viewer = new ScrollViewer();
var panel = new VirtualizingStackPanel();
viewer.Content = panel;
UXHeader.Text = $"{"Address",20} {"Offset",10} {(full ? $"{"Value",10}" : "")}{"Blk",26} {"Blk.Ofs",10} {"Blk.Size",10}";
IHeapNode blk = null;
for (int i = 0; i < (int)state.Size; i += (full && blk == null) ? 4 : _ctx.Memory.Reader.PointerSize)
{
var ptr = _ctx.Memory.Reader.Read <Ptr>(state.Start + i);
blk = i % _ctx.Memory.Reader.PointerSize == 0 ? _idx.FindNode(ptr.ValueAddress) : null;
var line = "";
if (blk != null || full)
{
line += $"{state.Start + i,26:X16} {i,10:X3}";
if (full)
{
line += $" {_ctx.Memory.Reader.Read<int>(state.Start + i),10:X} ({new string(_ctx.Memory.Reader.Read<byte>(state.Start + i, 4).Select(b => (char)b).Select(c => c >= 0x20 && c <= 0x7E ? c : ' ').ToArray()),4})";
}
}
if (blk != null)
{
var offset = (int)(ptr.ValueAddress - blk.Data.ValueAddress);
line += $" {blk.Address.ToString(),26} {offset,10:X} {blk.Size,10}";
if (ptr.ValueAddress >= state.Start && ptr.ValueAddress < state.Start + state.Size)
{
line += $" this+{ptr.ValueAddress - state.Start:X}";
}
var link = new Hyperlink(new Run {
Text = line
});
link.Tag = new Segment(blk.Data.ValueAddress, blk.Size);
link.Click += Link_Click;
panel.Children.Add(new TextBlock(link)
{
FontFamily = new FontFamily("Consolas")
});
}
else if (full)
{
panel.Children.Add(new TextBlock {
Text = line, FontFamily = new FontFamily("Consolas")
});
}
}
UXView.Content = viewer;
}
public LayoutSuspendedHelper( VirtualizingStackPanel panel, Orientation orientation )
{
if( panel == null )
throw new ArgumentNullException( "panel" );
m_panel = panel;
m_panel.m_layoutSuspendedOrientation = orientation;
m_panel.m_layoutSuspended = true;
}