public override void Collapse(RadTreeNode node)
{
if (node.Nodes.Count == 0)
{
this.UpdateViewOnExpandChanged(node);
}
else
{
List <TreeNodeElement> associatedNodes = this.GetAssociatedNodes(node);
for (int index = associatedNodes.Count - 1; index >= 0; --index)
{
TreeNodeElement treeNodeElement = associatedNodes[index];
TreeAnimatedPropertySetting animatedPropertySetting = new TreeAnimatedPropertySetting(VisualElement.OpacityProperty, (object)1.0, (object)1.0, 4, 40);
animatedPropertySetting.StartValue = (object)1.0;
animatedPropertySetting.EndValue = (object)0.0;
animatedPropertySetting.ApplyEasingType = RadEasingType.Linear;
if (index == 0)
{
animatedPropertySetting.AnimationFinished += new AnimationFinishedEventHandler(this.AnimatedCollapse_Finished);
animatedPropertySetting.Node = node;
}
animatedPropertySetting.ApplyValue((RadObject)treeNodeElement);
}
}
}
protected virtual void PrepareDragHint(TreeNodeElement nodeElement)
{
RadTreeViewElement treeViewElement = nodeElement.TreeViewElement;
Bitmap bitmap = (Bitmap)null;
Size size = Size.Empty;
if (this.dropHintColor != Color.Empty)
{
size = new Size(this.GetDropHintWidth(treeViewElement), 1);
bitmap = new Bitmap(size.Width, size.Height);
using (Graphics graphics = Graphics.FromImage((Image)bitmap))
{
using (SolidBrush solidBrush = new SolidBrush(this.DropHintColor))
graphics.FillRectangle((Brush)solidBrush, new Rectangle(Point.Empty, size));
}
}
else if (treeViewElement.ItemDropHint != null)
{
size = new Size(this.GetDropHintWidth(treeViewElement), treeViewElement.ItemDropHint.Image.Size.Height);
bitmap = new Bitmap(size.Width, size.Height);
using (Graphics g = Graphics.FromImage((Image)bitmap))
treeViewElement.ItemDropHint.Paint(g, new RectangleF(PointF.Empty, (SizeF)size));
}
if (bitmap == null)
{
return;
}
this.dropHintWindow = new RadLayeredWindow();
this.dropHintWindow.BackgroundImage = (Image)bitmap;
}
protected override void OnKeyDown(KeyEventArgs e)
{
BaseSpinEditorElement editorElement = this.EditorElement as BaseSpinEditorElement;
TreeNodeElement ownerElement = this.OwnerElement as TreeNodeElement;
if (ownerElement == null)
{
return;
}
switch (e.KeyCode)
{
case Keys.Return:
if (e.Modifiers == Keys.Control)
{
break;
}
editorElement.Validate();
ownerElement.TreeViewElement.EndEdit();
break;
case Keys.Escape:
ownerElement.TreeViewElement.CancelEdit();
break;
case Keys.Delete:
if (this.selectionLength != editorElement.TextBoxItem.TextLength)
{
break;
}
editorElement.Text = (string)null;
break;
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
BaseSpinEditorElement editorElement = this.EditorElement as BaseSpinEditorElement;
TreeNodeElement treeNodeElement = this.OwnerElement as TreeNodeElement;
if (treeNodeElement != null)
{
switch (e.KeyCode)
{
case Keys.Return:
if (e.Modifiers != Keys.Control)
{
editorElement.Validate();
treeNodeElement.TreeViewElement.EndEdit();
}
break;
case Keys.Escape:
treeNodeElement.TreeViewElement.CancelEdit();
break;
case Keys.Delete:
if (selectionLength == editorElement.TextBoxItem.TextLength)
{
editorElement.Text = null;
}
break;
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
RadDateTimePickerElement editorElement = this.EditorElement as RadDateTimePickerElement;
if (editorElement == null || !editorElement.IsInValidState(true))
{
return;
}
TreeNodeElement ownerElement = this.OwnerElement as TreeNodeElement;
if (ownerElement == null)
{
return;
}
if (e.KeyCode == Keys.Return)
{
ownerElement.TreeViewElement.EndEdit();
}
else if (e.KeyCode == Keys.Escape)
{
ownerElement.TreeViewElement.CancelEdit();
}
else
{
base.OnKeyDown(e);
}
}
protected override void HandleMouseMove(Point mousePosition)
{
base.HandleMouseMove(mousePosition);
if (this.Initialized)
{
TreeNodeElement draggedNodeElement = this.Context as TreeNodeElement;
if (draggedNodeElement != null)
{
this.owner.OnItemDrag(new RadTreeViewEventArgs(draggedNodeElement.Data));
}
}
ISupportDrop dropTarget = this.DropTarget;
TreeNodeElement nodeElement = dropTarget as TreeNodeElement;
if (nodeElement == null || !this.CanShowDropHint(mousePosition) || !this.CanCommit)
{
this.DisposeHint();
return;
}
if (this.dropHintWindow == null)
{
this.PrepareDragHint(nodeElement);
}
if (this.dropHintWindow != null)
{
this.UpdateHintPosition(mousePosition);
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
TreeNodeElement nodeElement = this.OwnerElement as TreeNodeElement;
if (nodeElement != null)
{
switch (e.KeyCode)
{
case Keys.Escape:
nodeElement.TreeViewElement.CancelEdit();
break;
case Keys.Enter:
nodeElement.TreeViewElement.EndEdit();
break;
case Keys.Up:
if (!this.Multiline || (selectionLength == 0 && isAtFirstLine))
{
nodeElement.TreeViewElement.EndEdit();
nodeElement.TreeViewElement.ProcessKeyDown(e);
}
break;
case Keys.Down:
if (!this.Multiline || (selectionLength == 0 && isAtLastLine))
{
nodeElement.TreeViewElement.EndEdit();
nodeElement.TreeViewElement.ProcessKeyDown(e);
}
break;
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
BaseDropDownListEditorElement editorElement = this.EditorElement as BaseDropDownListEditorElement;
this.selectionStart = editorElement.SelectionStart;
TreeNodeElement nodeElement = this.OwnerElement as TreeNodeElement;
if (nodeElement != null)
{
if (e.KeyCode == Keys.Enter && e.Modifiers != Keys.Control)
{
nodeElement.TreeViewElement.EndEdit();
}
else if (e.KeyCode == Keys.Escape)
{
nodeElement.TreeViewElement.CancelEdit();
e.Handled = true;
}
else if (e.KeyCode == Keys.Left || e.KeyCode == Keys.Right)
{
e.Handled = true;
}
else if (e.KeyCode == Keys.Down && e.Modifiers == Keys.Alt)
{
((RadDropDownListElement)this.EditorElement).ShowPopup();
e.Handled = true;
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TreeNodeElement ownerElement = this.editor.OwnerElement as TreeNodeElement;
if (ownerElement != null)
{
if (e.KeyCode == Keys.Return)
{
ownerElement.TreeViewElement.EndEdit();
}
else if (e.KeyCode == Keys.Escape)
{
ownerElement.TreeViewElement.CancelEdit();
}
}
if (e.KeyCode == Keys.Space)
{
this.editor.ToggleState();
}
else if (e.KeyCode != Keys.Left && e.KeyCode != Keys.Right)
{
this.editor.RaiseKeyDown(e);
}
this.downKeyCode = e.KeyCode;
}
public override void Collapse(RadTreeNode node)
{
if (node.Nodes.Count == 0)
{
this.UpdateViewOnExpandChanged(node);
return;
}
List <TreeNodeElement> children = this.GetAssociatedNodes(node);
for (int i = children.Count - 1; i >= 0; i--)
{
TreeNodeElement child = children[i];
TreeAnimatedPropertySetting animatedCollapse = new TreeAnimatedPropertySetting(RadItem.OpacityProperty,
(double)1, (double)1, 4, 40);
animatedCollapse.StartValue = (double)1.0;
animatedCollapse.EndValue = (double)0.0;
animatedCollapse.ApplyEasingType = RadEasingType.Linear;
animatedCollapse.UnapplyEasingType = RadEasingType.Linear;
if (i == 0)
{
animatedCollapse.AnimationFinished += new AnimationFinishedEventHandler(AnimatedCollapse_Finished);
animatedCollapse.Node = node;
}
animatedCollapse.ApplyValue(child);
}
}
protected virtual void OnKeyUp(KeyEventArgs e)
{
BaseSpinEditorElement editorElement = this.EditorElement as BaseSpinEditorElement;
TreeNodeElement treeNodeElement = this.OwnerElement as TreeNodeElement;
if (treeNodeElement != null)
{
switch (e.KeyCode)
{
case Keys.Right:
if ((RightToLeft && selectionStart == 0) || (!RightToLeft && selectionStart == editorElement.Text.Length))
{
editorElement.Validate();
}
break;
case Keys.Left:
if ((RightToLeft && selectionStart == editorElement.Text.Length) || (!RightToLeft && selectionStart == 0 && selectionLength == 0))
{
editorElement.Validate();
}
break;
}
}
}
protected virtual void PerformDragDrop(Point dropLocation, TreeNodeElement targetNodeElement, List <RadTreeNode> draggedNodes)
{
RadTreeNode targetNode = targetNodeElement.Data;
DropPosition position = this.GetDropPosition(dropLocation, targetNodeElement);
if (position == DropPosition.AsChildNode)
{
foreach (RadTreeNode node in draggedNodes)
{
if (!this.OnDragEnding(position, node, targetNode))
{
continue;
}
node.Remove();
targetNode.Nodes.Add(node);
this.owner.OnDragEnded(new RadTreeViewDragEventArgs(node, targetNode));
}
targetNode.Expand();
}
else
{
this.PerformDragDropCore(position, targetNode, draggedNodes);
}
}
protected override void PerformStart()
{
base.PerformStart();
TreeNodeElement draggedNodeElement = this.Context as TreeNodeElement;
this.draggedNode = draggedNodeElement.Data;
}
protected virtual void UpdateLines()
{
TreeNodeElement nodeElement = this.NodeElement;
bool showLines = nodeElement.TreeViewElement.ShowLines;
bool showRootLines = nodeElement.TreeViewElement.ShowRootLines;
if (!showLines)
{
foreach (RadElement child in this.Children)
{
child.Visibility = ElementVisibility.Hidden;
}
}
else
{
foreach (RadElement child in this.Children)
{
child.Visibility = ElementVisibility.Visible;
}
}
if (!showRootLines && nodeElement.IsRootNode)
{
foreach (RadElement child in this.Children)
{
child.Visibility = ElementVisibility.Collapsed;
}
}
if (this.Children.Count > 0 && !nodeElement.TreeViewElement.ShowExpandCollapse && (!this.NodeElement.IsRootNode || !showLines))
{
this.Children[this.Children.Count - 1].Visibility = ElementVisibility.Collapsed;
}
if (!showLines)
{
return;
}
int index = this.Children.Count - 1;
RadTreeNode node = nodeElement.Data;
if (showLines && showRootLines && (!nodeElement.TreeViewElement.ShowExpandCollapse && this.NodeElement.IsRootNode))
{
RadTreeNode nextNode = node.NextNode;
this.UpdateLine((TreeNodeLineElement)this.Children[0], node, nextNode, nodeElement);
}
else
{
if ((nodeElement.TreeViewElement.FullLazyMode || node.Nodes.Count > 0) && (!showLines || this.Children.Count <= 0 || (nodeElement.TreeViewElement.ShowExpandCollapse || this.NodeElement.IsRootNode) || (node.Parent == null || !showRootLines)) && (!showLines || showRootLines || (node.parent == null || nodeElement.TreeViewElement.ShowExpandCollapse) || this.Children.Count <= 0))
{
node = node.Parent;
}
for (; node != null && index >= 0; --index)
{
RadTreeNode nextNode = node.NextNode;
this.UpdateLine((TreeNodeLineElement)this.Children[index], node, nextNode, nodeElement);
node = node.Parent;
}
}
}
protected override bool IsDropTargetValid(ISupportDrop dropTarget)
{
TreeNodeElement treeNodeElement = dropTarget as TreeNodeElement;
if (treeNodeElement != null)
{
return(treeNodeElement.Data != this.draggedNode);
}
return(base.IsDropTargetValid(dropTarget));
}
protected override void OnLostFocus()
{
TreeNodeElement ownerElement = this.OwnerElement as TreeNodeElement;
if (ownerElement == null || !ownerElement.IsInValidState(true) || (ownerElement.ElementTree.Control.Focused || ownerElement.ElementTree.Control.ContainsFocus) || ownerElement.TreeViewElement.IsPerformingEndEdit)
{
return;
}
ownerElement.TreeViewElement.EndEdit();
}
public virtual void Synchronize()
{
TreeNodeElement nodeElement = this.NodeElement;
if (nodeElement == null || nodeElement.Data == null)
{
return;
}
this.Text = nodeElement.Data.Text;
}
protected override bool CanDragOver(
DropPosition dropPosition,
TreeNodeElement targetNodeElement)
{
if ((this.Owner as RadDataFilterElement).RootNode == targetNodeElement.Data && dropPosition != DropPosition.AsChildNode)
{
return(false);
}
return(base.CanDragOver(dropPosition, targetNodeElement));
}
protected virtual void PerformDragDrop(
Point dropLocation,
TreeNodeElement targetNodeElement,
List <RadTreeNode> draggedNodes)
{
RadTreeNode data = targetNodeElement.Data;
DropPosition dropPosition = this.GetDropPosition(dropLocation, targetNodeElement);
if (dropPosition == DropPosition.AsChildNode)
{
bool isCopyingNodes = this.IsCopyingNodes;
int index = 0;
while (index < draggedNodes.Count)
{
if (!this.OnDragEnding(dropPosition, draggedNodes[index], data))
{
draggedNodes.RemoveAt(index);
}
else
{
++index;
}
}
if (this.owner.bindingProvider.CanDrop || data.treeView != null && data.treeView.bindingProvider.CanDrop)
{
this.owner.bindingProvider.DropNodes(data, draggedNodes);
foreach (RadTreeNode draggedNode in draggedNodes)
{
this.owner.OnDragEnded(new RadTreeViewDragEventArgs(draggedNode, data));
}
}
else
{
foreach (RadTreeNode draggedNode in draggedNodes)
{
RadTreeNode radTreeNode = draggedNode;
if (isCopyingNodes)
{
radTreeNode = this.CreateTreeNode(radTreeNode);
}
else
{
radTreeNode.Remove();
}
data.Nodes.Add(radTreeNode);
this.owner.OnDragEnded(new RadTreeViewDragEventArgs(radTreeNode, data));
}
}
data.Expand();
}
else
{
this.PerformDragDropCore(dropPosition, data, draggedNodes);
}
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
SizeF sizeF = base.MeasureOverride(availableSize);
TreeNodeElement nodeElement = this.NodeElement;
if (nodeElement != null)
{
sizeF.Width = (float)nodeElement.TreeViewElement.TreeIndent;
}
return(sizeF);
}
public virtual void Synchronize()
{
TreeNodeElement nodeElement = NodeElement;
if (nodeElement != null)
{
this.Expanded = nodeElement.Data.Expanded;
RadTreeViewElement treeViewElement = nodeElement.TreeViewElement;
if (treeViewElement.FullLazyMode)
{
this.Visibility = ElementVisibility.Visible;
}
else
{
if (!treeViewElement.ShowExpandCollapse || nodeElement.Data.Nodes.Count == 0 ||
(nodeElement.Data.Parent == null && !treeViewElement.ShowRootLines))
{
this.Visibility = ElementVisibility.Collapsed;
}
else
{
this.Visibility = ElementVisibility.Visible;
}
}
this.LinkLineColor = treeViewElement.LineColor;
this.LinkOrientation = ExpanderItem.LinkLineOrientation.None;
this.LinkLineStyle = (DashStyle)treeViewElement.LineStyle;
if (treeViewElement.ShowLines)
{
if (nodeElement.Data.PrevNode != null || nodeElement.Data.Parent != null)
{
this.LinkOrientation |= ExpanderItem.LinkLineOrientation.Top | LinkLineOrientation.Horizontal;
}
if (nodeElement.Data.NextNode != null)
{
this.LinkOrientation |= LinkLineOrientation.Bottom | LinkLineOrientation.Horizontal;
}
}
if (this.TreeViewElement.AllowPlusMinusAnimation)
{
this.Opacity = this.TreeViewElement.ContainsMouse ? 1 : 0;
}
else
{
this.Opacity = 1;
}
UpdateSignImage();
}
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
SizeF desiredSize = base.MeasureOverride(availableSize);
TreeNodeElement nodeElement = NodeElement;
if (nodeElement != null)
{
desiredSize.Width = nodeElement.TreeViewElement.TreeIndent;
}
return(desiredSize);
}
protected override void OnLostFocus()
{
TreeNodeElement treeNode = this.OwnerElement as TreeNodeElement;
if (treeNode != null &&
treeNode.IsInValidState(true) &&
!treeNode.ElementTree.Control.Focused &&
!treeNode.ElementTree.Control.ContainsFocus)
{
treeNode.TreeViewElement.EndEdit();
}
}
private void listControl_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left || !this.listItemClicked)
{
return;
}
if (!this.dragging && ExprEditorDragDropManager.IsRealDragging(e.Location, this.downPt))
{
RadElement elementAtPoint = this.treeControl.ElementTree.GetElementAtPoint(e.Location);
TreeNodeElement treeNodeElement = elementAtPoint as TreeNodeElement;
if (treeNodeElement == null && elementAtPoint != null)
{
treeNodeElement = elementAtPoint.FindDescendant <TreeNodeElement>();
}
if (treeNodeElement == null)
{
return;
}
this.treeControl.SelectedNode = treeNodeElement.Data;
this.dragging = true;
this.treeControl.Capture = true;
this.treeControl.FindForm().Cursor = Cursors.No;
this.outlineForm = TelerikHelper.CreateOutlineForm();
this.outlineForm.ShowInTaskbar = false;
this.outlineForm.ShowIcon = false;
this.outlineForm.BackgroundImage = (Image)treeNodeElement.GetAsBitmap(Brushes.Transparent, 0.0f, new SizeF(1f, 1f));
this.outlineForm.FormBorderStyle = FormBorderStyle.None;
this.outlineForm.Size = this.outlineForm.BackgroundImage.Size;
this.outlineForm.MinimumSize = this.outlineForm.BackgroundImage.Size;
this.outlineForm.Location = new Point(Cursor.Position.X + 2, Cursor.Position.Y + 2);
this.outlineForm.TopMost = true;
this.outlineForm.Show();
}
else
{
if (!this.dragging)
{
return;
}
Point mousePosition = Control.MousePosition;
Point client = this.treeControl.FindForm().PointToClient(mousePosition);
this.outlineForm.Location = new Point(mousePosition.X + 5, mousePosition.Y + 5);
if (this.textBox.Bounds.Contains(client))
{
this.treeControl.FindForm().Cursor = Cursors.Arrow;
}
else
{
this.treeControl.FindForm().Cursor = Cursors.No;
}
}
}
public override void OnValueChanged()
{
base.OnValueChanged();
if (!((BaseDropDownListEditorElement)this.EditorElement).IsPopupOpen)
{
TreeNodeElement element = this.OwnerElement as TreeNodeElement;
if (element != null && element.TreeViewElement != null && element.TreeViewElement.IsEditing)
{
element.TreeViewElement.EndEdit();
}
}
}
protected DropPosition GetDropPosition(
Point dropLocation,
TreeNodeElement targetNodeElement)
{
int num = targetNodeElement.Size.Height / 3;
int y = dropLocation.Y;
if (y < num)
{
return(DropPosition.BeforeNode);
}
return(y >= num && y <= num * 2 ? DropPosition.AsChildNode : DropPosition.AfterNode);
}
protected virtual bool CanDragOver(DropPosition dropPosition, TreeNodeElement targetNodeElement)
{
RadTreeViewElement targetTreeView = targetNodeElement.TreeViewElement;
if (!targetNodeElement.Enabled || !targetTreeView.ElementTree.Control.AllowDrop || !this.IsInValidState(targetTreeView))
{
return(false);
}
RadTreeNode targetNode = targetNodeElement.Data;
List <RadTreeNode> nodes = new List <RadTreeNode>(draggedNode.TreeViewElement.SelectedNodes);
// If the count is empty, we are in single selection mode
if (nodes.Count == 0)
{
nodes.Add(draggedNode);
}
foreach (RadTreeNode selected in nodes)
{
if (selected == targetNode)
{
return(false);
}
RadTreeNode parent = targetNode.Parent;
while (parent != null)
{
if (parent == selected)
{
return(false);
}
parent = parent.Parent;
}
if (dropPosition == DropPosition.AsChildNode && selected.Parent == targetNode)
{
return(false);
}
}
if (dropPosition == DropPosition.AsChildNode)
{
targetTreeView.AutoExpand(targetNode);
}
targetTreeView.AutoScroll(targetNodeElement);
return(true);
}
protected override void OnToggleStateChanging(StateChangingEventArgs e)
{
base.OnToggleStateChanging(e);
if (e.Cancel && e.NewValue == Telerik.WinControls.Enumerations.ToggleState.Indeterminate && !this.IsThreeState)
{
TreeNodeElement nodeElement = this.NodeElement;
if (nodeElement != null && nodeElement.TreeViewElement.TriStateMode)
{
e.Cancel = false;
}
}
}
protected virtual void OnStructureTreeViewMouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left || this.mouseDownPoint.X < 0 || Math.Abs(e.Location.X - this.mouseDownPoint.X) <= SystemInformation.DragSize.Width && Math.Abs(e.Location.Y - this.mouseDownPoint.Y) <= SystemInformation.DragSize.Height)
{
return;
}
TreeNodeElement elementAtPoint = this.structureTreeView.ElementTree.GetElementAtPoint(e.Location) as TreeNodeElement;
if (elementAtPoint == null || elementAtPoint.Data == null || !(elementAtPoint.Data.Tag is LayoutControlItemBase))
{
return;
}
this.layoutControl.DragOverlay.StartDrag((LayoutControlItemBase)elementAtPoint.Data.Tag);
}
public virtual void Synchronize()
{
TreeNodeElement nodeElement = NodeElement;
if (nodeElement == null)
{
return;
}
if (nodeElement.Data.Parent is RadTreeViewElement.RootTreeNode && !nodeElement.TreeViewElement.ShowRootLines)
{
this.Visibility = ElementVisibility.Collapsed;
return;
}
else
{
this.Visibility = ElementVisibility.Visible;
}
int level = nodeElement.Data.Level;
if (!nodeElement.TreeViewElement.FullLazyMode)
{
if (nodeElement.Data.Nodes.Count == 0)
{
level++;
}
else if (!nodeElement.TreeViewElement.ShowExpandCollapse)
{
level++;
}
}
while (this.Children.Count > level)
{
this.Children.RemoveAt(this.Children.Count - 1);
}
while (this.Children.Count < level)
{
this.Children.Add(new TreeNodeLineElement(nodeElement));
}
if (this.Children.Count > 0)
{
UpdateLines();
}
}
