VirtualizingStackPanelEx GetPanelForTreeViewItem(TreeViewItem container)
{
container.ApplyTemplate();
ItemsPresenter itemsPresenter =
(ItemsPresenter)container.Template.FindName("ItemsHost", container);
if (itemsPresenter != null)
{
itemsPresenter.ApplyTemplate();
}
else
{
// The Tree template has not named the ItemsPresenter,
// so walk the descendants and find the child.
itemsPresenter = TreeViewHelper.FindVisualChild <ItemsPresenter>(container);
if (itemsPresenter == null)
{
container.UpdateLayout();
itemsPresenter = TreeViewHelper.FindVisualChild <ItemsPresenter>(container);
}
}
Panel itemsHostPanel = (Panel)VisualTreeHelper.GetChild(itemsPresenter, 0);
// Ensure that the generator for this panel has been created.
UIElementCollection children = itemsHostPanel.Children;
var virtualizingPanel = itemsHostPanel as VirtualizingStackPanelEx;
Debug.Assert(virtualizingPanel != null);
return(virtualizingPanel);
}
private void ApplyTemplate(CodeFile file, DataTemplate template)
{
TreeViewItem item = parent.ItemContainerGenerator.ContainerFromItem(file) as TreeViewItem;
if (item != null)
{
item.HeaderTemplate = template;
item.ApplyTemplate();
}
}
// Обновляет выделения (текущий активный файл и открытые файлы)
private void UpdateSelections()
{
if (Current == null)
{
return;
}
foreach (CodeFile file in Current.Files)
{
TreeViewItem item = parent.ItemContainerGenerator.ContainerFromItem(file) as TreeViewItem;
if (item != null)
{
if (_codeEditorView.CurrentCodeFile == file)
{
item.HeaderTemplate = CurrentEditorItemTemplate;
}
else if (_codeEditorView.OpenedFiles.Count(f => f == file) > 0)
{
item.HeaderTemplate = OpenInEditorItemTemplate;
}
else
{
item.HeaderTemplate = ItemTemplate;
}
item.ApplyTemplate();
}
}
// Если нет ни одного активного файла, перетащить фокус на себя!
if (_codeEditorView.OpenedFiles.Count() == 0)
{
if (treeView1.SelectedItem == null)
{
parent.Focus(); // Если нету выбранного ранее объекта, то установим на сам проект
}
else
{
treeView1.Focus(); // Иначе установим на сам тривь, а он уже сам выберет ранее выбранный
}
}
}
// Загрузить рабочие директории из проекта (если загружен)
private void LoadWorkDirs()
{
if (CodeProjectManager.Instance.Current == null)
{
return;
}
// Load Work dirs from project
workDirsItem = new TreeViewItem();
workDirsItem.ItemTemplate = FavouriteItem.ItemTemplate;
workDirsItem.ApplyTemplate();
workDirsItem.Header = LocalString.Get("WorkDirs");
workDirsItem.IsExpanded = true;
workDirsItem.SetBinding(TreeViewItem.ItemsSourceProperty,
new Binding {
Source = CodeProjectManager.Instance.Current.WorkDirs
});
treeView1.Items.Insert(0, workDirsItem);
}
private void SelectTreeviewItemByMatch(Func <AsfPacket, int> matchPacketMethod, Func <AsfPacket, int> matchPacketFollowupMethod = null, Func <List <PayloadInfo>, int> matchPayloadMethod = null)
{
AsfHierarchy.UpdateLayout();
foreach (AsfHeaderItem item in AsfHierarchy.Items)
{
if (item.Name == "Data Object")
{
AsfDataObjectItem asfDataObjectItem = item as AsfDataObjectItem;
TreeViewItem treeViewItem = AsfHierarchy.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
if (treeViewItem == null)
{
return;
}
treeViewItem.IsExpanded = true;
treeViewItem.ApplyTemplate();
ItemsPresenter itemsPresenter = (ItemsPresenter)treeViewItem.Template.FindName("ItemsHost", treeViewItem);
if (itemsPresenter != null)
{
itemsPresenter.ApplyTemplate();
}
else
{
// The Tree template has not named the ItemsPresenter,
// so walk the descendents and find the child.
itemsPresenter = FindVisualChild <ItemsPresenter>(treeViewItem);
if (itemsPresenter == null)
{
treeViewItem.UpdateLayout();
itemsPresenter = FindVisualChild <ItemsPresenter>(treeViewItem);
}
}
Panel itemsHostPanel = (Panel)VisualTreeHelper.GetChild(itemsPresenter, 0);
// Ensure that the generator for this panel has been created.
UIElementCollection children = itemsHostPanel.Children;
MyVirtualizingStackPanel msp = itemsHostPanel as MyVirtualizingStackPanel;
//binary search for right payload for the time offset requested with a 50 millisecond bucket size
int index = 0;
index = asfDataObjectItem.Packets.BinarySearchForMatch(matchPacketMethod);
if (matchPacketFollowupMethod != null)
{
index = asfDataObjectItem.Packets.LinearSearchForMatch(index, matchPacketFollowupMethod);
}
if (index >= 0 && index < asfDataObjectItem.Packets.Count)
{
msp.BringIntoView(index);
var selectedPacket = treeViewItem.ItemContainerGenerator.ContainerFromIndex(index);
bool bBuilt = false;
if (selectedPacket != null)
{
TreeViewItem packetTreeViewItem = selectedPacket as TreeViewItem;
//packetTreeViewItem.IsSelected = true;
packetTreeViewItem.IsExpanded = true;
//now expand to payload
bBuilt = packetTreeViewItem.ApplyTemplate();
itemsPresenter = (ItemsPresenter)packetTreeViewItem.Template.FindName("ItemsHost", packetTreeViewItem);
if (itemsPresenter != null)
{
bBuilt = itemsPresenter.ApplyTemplate();
}
else
{
// The Tree template has not named the ItemsPresenter,
// so walk the descendents and find the child.
itemsPresenter = FindVisualChild <ItemsPresenter>(packetTreeViewItem);
if (itemsPresenter == null)
{
packetTreeViewItem.UpdateLayout();
itemsPresenter = FindVisualChild <ItemsPresenter>(packetTreeViewItem);
}
}
itemsHostPanel = (Panel)VisualTreeHelper.GetChild(itemsPresenter, 0);
// Ensure that the generator for this panel has been created.
children = itemsHostPanel.Children;
msp = itemsHostPanel as MyVirtualizingStackPanel;
int payloadIndex = 0;
if (matchPayloadMethod != null)
{
payloadIndex = matchPayloadMethod(asfDataObjectItem.Packets[index].Payload);
}
if (payloadIndex < 0 || payloadIndex >= asfDataObjectItem.Packets[index].Payload.Count)
{
payloadIndex = 0;
}
msp.BringIntoView(payloadIndex);
var selectedPayload = packetTreeViewItem.ItemContainerGenerator.ContainerFromIndex(payloadIndex);
TreeViewItem payloadTreeViewItem = selectedPayload as TreeViewItem;
if (payloadTreeViewItem != null)
{
payloadTreeViewItem.BringIntoView();
payloadTreeViewItem.IsSelected = true;
payloadTreeViewItem.IsExpanded = true;
payloadTreeViewItem.Focus();
}
}
}
}
}
}