public void DeleteElement(BaseElement el)
{
if ((el == null) || (el is ConnectorElement)) return;
//Delete link
if (el is BaseLinkElement)
{
var lnk = (BaseLinkElement) el;
DeleteLink(lnk);
return;
}
//Delete node
if (el is NodeElement)
{
var conn = ((NodeElement) el);
foreach (var elconn in conn.Connectors)
{
for (var i = elconn.Links.Count - 1; i>=0; i--)
{
var lnk = (BaseLinkElement) elconn.Links[i];
DeleteLink(lnk);
}
}
if (SelectedNodes.Contains(el))
SelectedNodes.Remove(el);
}
if (SelectedElements.Contains(el))
SelectedElements.Remove(el);
Elements.Remove(el);
OnAppearancePropertyChanged(new EventArgs());
}
private void OnTreeSelectionChanged(object sender, EventArgs e)
{
var info = _treeControl.SelectedItemInfo;
if (info.Branch != null)
{
var options = 0;
var selObj = info.Branch.GetObject(info.Row, info.Column, TreeGridDesignerBranch.BrowsingObject, ref options);
if (selObj != null)
{
var willNotUpdateSelection = SelectedElements.Contains(selObj);
SetSelectedComponents(new[] { selObj });
// SetSelectedComponents will not fire selection events if the row has not changed
// the column might have changed so we keep/compare state in order to fire the event
if ((_previouslySelectedColumn == null || TreeControl.CurrentColumn != _previouslySelectedColumn) &&
willNotUpdateSelection)
{
OnSelectionChanged(EventArgs.Empty);
}
_previouslySelectedColumn = TreeControl.CurrentColumn;
}
else
{
SetSelectedComponents(new object[] { });
}
}
}
/// <summary>
/// 删除选中元素
/// </summary>
/// <param name="element"></param>
private void SelectedElementRemove(UIElement element)
{
if (SelectedElements.Contains(element))
{
SelectedElements.Remove(element);
((IControlBase)element).SetUnFocus();
}
}
/// <summary>
/// 添加选中元素
/// </summary>
/// <param name="element"></param>
private void SelectedElementAdd(UIElement element)
{
if (!SelectedElements.Contains(element))
{
SelectedElements.Add(element);
this.ReorderZindex();
((IControlBase)element).SetFocus();
}
}
public void SelectElements(Rectangle selectionRectangle)
{
SelectedElements.EnabledCalc = false;
SelectedNodes.EnabledCalc = false;
// Add all "hitable" elements
foreach (BaseElement element in Elements)
{
if (!(element is IControllable))
{
continue;
}
var ctrl = ((IControllable)element).GetController();
if (!ctrl.HitTest(selectionRectangle))
{
continue;
}
if (!(element is ConnectorElement))
{
SelectedElements.Add(element);
}
if (element is NodeElement)
{
SelectedNodes.Add(element);
}
}
//if the seleciont isn't a expecific link, remove links
// without 2 elements in selection
if (SelectedElements.Count > 1)
{
foreach (BaseElement el in Elements)
{
var lnk = el as BaseLinkElement;
if (lnk == null)
{
continue;
}
if ((!SelectedElements.Contains(lnk.Connector1.ParentElement)) ||
(!SelectedElements.Contains(lnk.Connector2.ParentElement)))
{
SelectedElements.Remove(lnk);
}
}
}
SelectedElements.EnabledCalc = true;
SelectedNodes.EnabledCalc = true;
OnElementSelection(this, new ElementSelectionEventArgs(SelectedElements));
}
private void HighlightOnlySelectedElements()
{
Cursor = Cursors.Arrow;
FirstResizeVisual.IsVisible = false;
SecondResizeVisual.IsVisible = false;
foreach (var element in HighlightBoxVisuals.Where(x => !SelectedElements.Contains(x.Key)).Select(x => x.Value))
{
element.Opacity = 0.0;
}
highlighted.Clear();
}
public void DeleteLink(BaseLinkElement lnk, bool callHandler = true)
{
if (lnk == null) return;
lnk.Connector1.RemoveLink(lnk);
lnk.Connector2.RemoveLink(lnk);
if (Elements.Contains(lnk))
Elements.Remove(lnk);
if (SelectedElements.Contains(lnk))
SelectedElements.Remove(lnk);
if (callHandler)
OnLinkRemoved(new ElementEventArgs(lnk));
OnAppearancePropertyChanged(new EventArgs());
}
private void InternalSelectedElements_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (SuppressNotificationsCounter > 0)
{
return;
}
try
{
SuppressNotifications();
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
case NotifyCollectionChangedAction.Remove:
case NotifyCollectionChangedAction.Replace:
if (e.OldItems != null)
{
foreach (var item in e.OldItems.Cast <FieldExposer <T_Item> >())
{
if (SelectedElements.Contains(item.InnerItem))
{
SelectedElements.Remove(item.InnerItem);
}
}
}
if (e.NewItems != null)
{
foreach (var item in e.NewItems.Cast <FieldExposer <T_Item> >())
{
if (!SelectedElements.Contains(item.InnerItem))
{
SelectedElements.Add(item.InnerItem);
}
}
}
break;
case NotifyCollectionChangedAction.Reset:
SelectedElements.Clear();
break;
}
}
finally
{
AllowNotifications();
}
}
public void DeleteElement(BaseElement el)
{
if ((el != null) && !(el is ConnectorElement))
{
//Delete link
if (el is BaseLinkElement)
{
BaseLinkElement lnk = (BaseLinkElement)el;
DeleteLink(lnk);
return;
}
//Delete node
if (el is NodeElement)
{
NodeElement conn = ((NodeElement)el);
foreach (ConnectorElement elconn in conn.Connectors)
{
BaseLinkElement lnk;
for (int i = elconn.Links.Count - 1; i >= 0; i--)
{
lnk = (BaseLinkElement)elconn.Links[i];
DeleteLink(lnk);
}
}
if (selectedNodes.Contains(el))
{
selectedNodes.Remove(el);
}
}
if (SelectedElements.Contains(el))
{
selectedElements.Remove(el);
}
elements.Remove(el);
el.OnRemovedFromDocument(new DocumentEventArgs {
Document = this
});
OnAppearancePropertyChanged(new EventArgs());
}
el = null;
}
public void DeleteLink(BaseLinkElement linkElement)
{
if (linkElement != null)
{
linkElement.Connector1.RemoveLink(linkElement);
linkElement.Connector2.RemoveLink(linkElement);
if (_elements.Contains(linkElement))
{
_elements.Remove(linkElement);
}
if (SelectedElements.Contains(linkElement))
{
SelectedElements.Remove(linkElement);
}
OnAppearancePropertyChanged(new EventArgs());
}
}
public void DeleteElement(BaseElement element)
{
if ((element != null) && !(element is ConnectorElement))
{
//Delete link
if (element is BaseLinkElement)
{
var linkElement = (BaseLinkElement)element;
DeleteLink(linkElement);
return;
}
//Delete node
if (element is NodeElement)
{
var conn = (NodeElement)element;
foreach (var connectorElement in conn.Connectors)
{
for (var i = connectorElement.Links.Count - 1; i >= 0; i--)
{
var linkElement = (BaseLinkElement)connectorElement.Links[i];
DeleteLink(linkElement);
}
}
if (SelectedNodes.Contains(element))
{
SelectedNodes.Remove(element);
}
}
if (SelectedElements.Contains(element))
{
SelectedElements.Remove(element);
}
_elements.Remove(element);
OnAppearancePropertyChanged(new EventArgs());
}
}