public TreeViewDropAdorner (ExTreeViewItem item, RowDropPosition position)
: base (item)
{
IsHitTestVisible = false;
double indent = ((item.Level + 1) * LevelToIndentConverter.IndentSize) + 5;
this.shape = new System.Windows.Shapes.Rectangle();
this.shape.Stroke = Brushes.DimGray;
this.shape.Width = item.ActualWidth - indent;
switch (position) {
case RowDropPosition.Into:
this.shape.Height = item.ActualHeight;
this.shape.Margin = new Thickness (indent, 0, 0, 0);
this.shape.StrokeDashArray = new DoubleCollection { 1, 0, 1 };
break;
case RowDropPosition.Before:
this.shape.Height = 1;
this.shape.Margin = new Thickness (indent, 0, 0, 0);
break;
case RowDropPosition.After:
this.shape.Height = 1;
this.shape.Margin = new Thickness (indent, item.ActualHeight, 0, 0);
break;
}
}
public TreeViewDropAdorner(ExTreeViewItem item, RowDropPosition position)
: base(item)
{
IsHitTestVisible = false;
double indent = ((item.Level + 1) * LevelToIndentConverter.IndentSize) + 5;
this.shape = new System.Windows.Shapes.Rectangle();
this.shape.Stroke = Brushes.DimGray;
this.shape.Width = item.ActualWidth - indent;
switch (position)
{
case RowDropPosition.Into:
this.shape.Height = item.ActualHeight;
this.shape.Margin = new Thickness(indent, 0, 0, 0);
this.shape.StrokeDashArray = new DoubleCollection {
1, 0, 1
};
break;
case RowDropPosition.Before:
this.shape.Height = 1;
this.shape.Margin = new Thickness(indent, 0, 0, 0);
break;
case RowDropPosition.After:
this.shape.Height = 1;
this.shape.Margin = new Thickness(indent, item.ActualHeight, 0, 0);
break;
}
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
// Get row
nint row = Tree.GetRow(new CGPoint((nfloat)x, (nfloat)y));
pos = RowDropPosition.Into;
nodePosition = null;
if (row >= 0)
{
nodePosition = ((TreeItem)Tree.ItemAtRow(row)).Position;
}
return(nodePosition != null);
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
nodePosition = null;
this.dropPosition = pos = RowDropPosition.Into;
x *= WidthPixelRatio;
y *= HeightPixelRatio;
var result = VisualTreeHelper.HitTest(Tree, new System.Windows.Point(x, y)) as PointHitTestResult;
var element = (result != null) ? result.VisualHit as FrameworkElement : null;
while (element != null)
{
if (element is ExTreeViewItem)
{
break;
}
if (element is ExTreeView) // We can't succeed past this point
{
return(false);
}
element = VisualTreeHelper.GetParent(element) as FrameworkElement;
}
this.dropTarget = (ExTreeViewItem)element;
if (element == null)
{
return(false);
}
var point = ((UIElement)result.VisualHit).TranslatePoint(result.PointHit, element);
double edge = element.ActualHeight * 0.15;
if (point.Y <= edge)
{
this.dropPosition = pos = RowDropPosition.Before;
}
else if (point.Y >= element.ActualHeight - edge)
{
this.dropPosition = pos = RowDropPosition.After;
}
nodePosition = element.DataContext as TreeStoreNode;
return(true);
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
Gtk.TreeViewDropPosition tpos;
Gtk.TreePath path;
if (!Widget.GetDestRowAtPos((int)x, (int)y, out path, out tpos))
{
pos = RowDropPosition.Into;
nodePosition = null;
return(false);
}
Gtk.TreeIter it;
Widget.Model.GetIter(out it, path);
nodePosition = new IterPos(-1, it);
switch (tpos)
{
case Gtk.TreeViewDropPosition.After: pos = RowDropPosition.After; break;
case Gtk.TreeViewDropPosition.Before: pos = RowDropPosition.Before; break;
default: pos = RowDropPosition.Into; break;
}
return(true);
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
Gtk.TreeViewDropPosition tpos;
Gtk.TreePath path;
if (!Widget.GetDestRowAtPos ((int)x, (int)y, out path, out tpos)) {
pos = RowDropPosition.Into;
nodePosition = null;
return false;
}
Gtk.TreeIter it;
Widget.Model.GetIter (out it, path);
nodePosition = new IterPos (-1, it);
switch (tpos) {
case Gtk.TreeViewDropPosition.After: pos = RowDropPosition.After; break;
case Gtk.TreeViewDropPosition.Before: pos = RowDropPosition.Before; break;
default: pos = RowDropPosition.Into; break;
}
return true;
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
return(Backend.GetDropTargetRow(x, y, out pos, out nodePosition));
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
return Backend.GetDropTargetRow (x, y, out pos, out nodePosition);
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
nodePosition = null;
this.dropPosition = pos = RowDropPosition.Into;
var result = VisualTreeHelper.HitTest (Tree, new System.Windows.Point (x, y)) as PointHitTestResult;
var element = (result != null) ? result.VisualHit as FrameworkElement : null;
while (element != null) {
if (element is ExTreeViewItem)
break;
if (element is ExTreeView) // We can't succeed past this point
return false;
element = VisualTreeHelper.GetParent (element) as FrameworkElement;
}
this.dropTarget = (ExTreeViewItem)element;
if (element == null)
return false;
var point = ((UIElement)result.VisualHit).TranslatePoint (result.PointHit, element);
double edge = element.ActualHeight * 0.15;
if (point.Y <= edge)
this.dropPosition = pos = RowDropPosition.Before;
else if (point.Y >= element.ActualHeight - edge)
this.dropPosition = pos = RowDropPosition.After;
nodePosition = element.DataContext as TreeStoreNode;
return true;
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
pos = RowDropPosition.Into;
nodePosition = null;
return(false);
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
pos = default(RowDropPosition);
nodePosition = default(TreePosition);
// TODO
return false;
}
public bool GetDropTargetRow(double x, double y, out RowDropPosition pos, out TreePosition nodePosition)
{
throw new NotImplementedException();
}
