public childItem FindBeforeSelected <childItem>(DependencyObject obj)
where childItem : TreeListViewItem
{
if (obj is childItem)
{
previousContainer = obj as childItem;
}
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
{
DependencyObject child = VisualTreeHelper.GetChild(obj, i);
if (child != null && child is childItem && (child as childItem).IsSelected)
{
return(previousContainer as childItem);
}
else
{
childItem childOfChild = null;
if (child is UIElement && (child as UIElement).Visibility == Visibility.Visible)
{
childOfChild = FindBeforeSelected <childItem>(child);
}
if (childOfChild != null)
{
return(childOfChild);
}
}
}
return(null);
}
GetContainerForItemOverride()
{
TreeListViewItem newItem = new TreeListViewItem(this);
this.AddLogicalChild(newItem);
return(newItem);
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
if (e.KeyboardDevice.Modifiers == ModifierKeys.Shift)
{
OutlinerCommands.InsertBeforeCurrent.Execute(null, this);
}
else
{
OutlinerCommands.InsertAfterCurrent.Execute(null, this);
}
e.Handled = true;
}
if (e.Key == Key.F2)
{
OutlinerCommands.FocusEditor.Execute(null, this);
//FocusEditorForSelectedRow();
e.Handled = true;
}
else if (e.Key == Key.Down)
{
found_selected = false;
TreeListViewItem item = FindNextAfterSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
}
e.Handled = true;
}
else if (e.Key == Key.Up)
{
previousContainer = null;
TreeListViewItem item = FindBeforeSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
}
e.Handled = true;
}
else if (e.Key == Key.Delete)
{
OutlinerCommands.DeleteCurrentRow.Execute(null, this);
e.Handled = true;
}
else
if (e.Key == Key.Tab && e.KeyboardDevice.Modifiers != ModifierKeys.Shift)
{
OutlinerCommands.IncIndent.Execute(null, this);
e.Handled = true;
}
else
if (e.Key == Key.Tab && e.KeyboardDevice.Modifiers == ModifierKeys.Shift)
{
OutlinerCommands.DecIndent.Execute(null, this);
e.Handled = true;
}
}
private bool MoveFocusToPreviousContainer()
{
previousContainer = null;
TreeListViewItem item = FindBeforeSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
return(true);
}
return(false);
}
internal void MakeFirstEditorFocused()
{
TreeListViewItem ti = (ItemContainerGenerator.ContainerFromIndex(0) as TreeListViewItem);
if (ti != null)
{
MyEdit editor = ti.GetEditor(GetViewLastEditorColumnId(), GetLastEditorColumnId(), false) as MyEdit;
if (editor != null)
{
Keyboard.Focus(editor);
}
}
}
private bool MoveFocusToNextContainer()
{
found_selected = false;
TreeListViewItem item = FindNextAfterSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
//item.IsSelected = true;
return(true);
}
return(false);
}
internal void SelectRow(OutlinerNote row)
{
ItemContainerGenerator t = ItemContainerGeneratorFor(row);
if (t.Status != System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
t.StatusChanged += new EventHandler(SelectRow_ContainerGeneratorStatusChanged);
rowToMakeSelected = row;
}
else
{
TreeListViewItem tvi = (t.ContainerFromItem(row) as TreeListViewItem);
tvi.IsSelected = true;
}
}
internal void MakeActive(OutlinerNote newNote, int focusColumnIdx, bool isActiveInlineEdit, EventHandler madeActive)
{
__OnMadeActive = madeActive;
__ColumnIdxToFocus = focusColumnIdx;
__ColumnToFocusIsInline = isActiveInlineEdit;
ItemContainerGenerator itemContainerGenerator = ItemContainerGeneratorFor(newNote, true);
if (itemContainerGenerator == null)
{
return;
}
if (itemContainerGenerator.Status != System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
__NoteToMakeActive = newNote;
itemContainerGenerator.StatusChanged += new EventHandler(itemContainerGenerator_StatusChanged);
return;
}
TreeListViewItem ti = (itemContainerGenerator.ContainerFromItem(newNote) as TreeListViewItem);
if (ti != null)
{
ti.Focus();
if (__ColumnIdxToFocus == -1)
{
MakeActiveDone(newNote, null);
}
else
{
CheckMainWindow();
MyEdit editor = ti.GetEditor(__MainWindow.GetViewColumnId(focusColumnIdx), focusColumnIdx, isActiveInlineEdit) as MyEdit;
if (editor != null)
{
Keyboard.Focus(editor);
MakeActiveDone(newNote, editor);
}
else
{
__NoteToMakeActive = newNote;
__TviToMakeActive = ti;
ti.LayoutUpdated += new EventHandler(ti_LayoutUpdated);
}
}
}
}
void ti_LayoutUpdated(object sender, EventArgs e)
{
if (__TviToMakeActive != null)
{
MyEdit editor = __TviToMakeActive.GetEditor(GetViewLastEditorColumnId(), GetLastEditorColumnId(), __ColumnToFocusIsInline) as MyEdit;
if (editor != null)
{
Keyboard.Focus(editor);
__TviToMakeActive.LayoutUpdated -= ti_LayoutUpdated;
__TviToMakeActive = null;
MakeActiveDone(__NoteToMakeActive, editor);
}
}
__NoteToMakeActive = null;
}
void itemContainerGenerator_StatusChanged(object sender, EventArgs e)
{
ItemContainerGenerator generator = sender as ItemContainerGenerator;
if (generator == null)
{
return;
}
if (generator.Status != System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
return;
}
generator.StatusChanged -= itemContainerGenerator_StatusChanged;
TreeListViewItem ti = (generator.ContainerFromItem(__NoteToMakeActive) as TreeListViewItem);
if (ti == null)
{
__NoteToMakeActive = null;
}
else
{
ti.Focus();
if (__ColumnIdxToFocus == -1)
{
MakeActiveDone(__NoteToMakeActive, null);
__NoteToMakeActive = null;
}
else
{
MyEdit editor = ti.GetEditor(GetViewLastEditorColumnId(), GetLastEditorColumnId(), __ColumnToFocusIsInline) as MyEdit;
if (editor != null)
{
Keyboard.Focus(editor);
MakeActiveDone(__NoteToMakeActive, editor);
__NoteToMakeActive = null;
}
else
{
__TviToMakeActive = ti;
ti.LayoutUpdated += new EventHandler(ti_LayoutUpdated);
}
}
}
}
public static TreeListViewItem GetContainerForItem(TreeListView view, OutlinerNote note)
{
ItemContainerGenerator generator = view.ItemContainerGeneratorFor(note);
if (generator == null)
{
return(null);
}
TreeListViewItem container = generator.ContainerFromItem(note) as TreeListViewItem;
if (container == null)
{
return(null);
}
return(container);
}
internal void MakeNextOrPrevSelection()
{
found_selected = false;
TreeListViewItem item = FindNextAfterSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
return;
}
previousContainer = null;
item = FindBeforeSelected <TreeListViewItem>(this);
if (item != null)
{
item.Focus();
}
}
public ItemContainerGenerator ItemContainerGeneratorFor(object SelectedItem, bool doWait)
{
if (SelectedItem == null)
{
return(null);
}
OutlinerNote Note = (SelectedItem as OutlinerNote);
if (Note.Parent.IsRoot)
{
return(ItemContainerGenerator);
}
else
{
ItemContainerGenerator ig = ItemContainerGeneratorFor(Note.Parent);
if (ig != null)
{
if (ig.Status != GeneratorStatus.ContainersGenerated && doWait)
{
for (int limit = 0; limit < 100; limit++)
{
if (ig.Status == GeneratorStatus.ContainersGenerated)
{
break;
}
app.DoEvents();
Thread.Sleep(10);
}
}
TreeListViewItem tvi = (ig.ContainerFromItem(Note.Parent) as TreeListViewItem);
if (tvi != null)
{
return(tvi.ItemContainerGenerator);
}
}
return(null);
}
}
private void FocusEditorForSelectedRow()
{
if (SelectedItem != null)
{
ItemContainerGenerator itemGenerator = ItemContainerGeneratorFor(SelectedItem);
//BUG: Почему здесь иногда бывает null - не ясно
if (itemGenerator != null)
{
TreeListViewItem li = itemGenerator.ContainerFromItem(SelectedItem) as TreeListViewItem;
if (li != null)
{
MyEdit edit = li.GetEditor(GetViewLastEditorColumnId(), GetLastEditorColumnId(), false) as MyEdit;
if (edit != null)
{
Keyboard.Focus(edit);
}
}
}
}
}
void SelectRow_ContainerGeneratorStatusChanged(object sender, EventArgs e)
{
ItemContainerGenerator icg = sender as ItemContainerGenerator;
if (icg.Status == System.Windows.Controls.Primitives.GeneratorStatus.GeneratingContainers)
{
return;
}
icg.StatusChanged -= SelectRow_ContainerGeneratorStatusChanged;
if (rowToMakeSelected == null)
{
return;
}
TreeListViewItem tvi = icg.ContainerFromItem(rowToMakeSelected) as TreeListViewItem;
if (tvi != null)
{
tvi.IsSelected = true;
rowToMakeSelected = null;
}
}
