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//
// TreeView.cs
//
// Author:
// Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// Copyright (c) 2016 jp
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Xml.Serialization;
using System.Diagnostics;
using System.ComponentModel;
namespace Crow
{
//treeview expect expandable child (or not)
//if their are expandable, some functions and events are added
public class TreeView : TemplatedGroup
{
GraphicObject selectedItemContainer = null;
bool isRoot;
#region CTOR
public TreeView () : base()
{
}
#endregion
[XmlAttributeAttribute()][DefaultValue(false)]
public virtual bool IsRoot {
get { return isRoot; }
set {
if (isRoot == value)
return;
isRoot = value;
NotifyValueChanged ("IsRoot", isRoot);
}
}
[XmlIgnore]public override object SelectedItem {
get {
return selectedItemContainer == null ?
"" : selectedItemContainer.DataSource;
}
}
protected override void registerItemClick (GraphicObject g)
{
//register ItemClick on the Root node
TreeView tv = this as TreeView;
while (!tv.IsRoot) {
ILayoutable tmp = tv.Parent;
while (!(tmp is TreeView)) {
tmp = tmp.Parent;
}
tv = tmp as TreeView;
}
g.MouseClick += tv.itemClick;
}
internal override void itemClick (object sender, MouseButtonEventArgs e)
{
GraphicObject tmp = sender as GraphicObject;
if (!tmp.HasFocus)
return;
if (selectedItemContainer != null) {
selectedItemContainer.Foreground = Color.Transparent;
selectedItemContainer.Background = Color.Transparent;
}
selectedItemContainer = tmp;
selectedItemContainer.Foreground = SelectionForeground;
selectedItemContainer.Background = SelectionBackground;
NotifyValueChanged ("SelectedItem", SelectedItem);
raiseSelectedItemChanged ();
}
void onExpandAll_MouseClick (object sender, MouseButtonEventArgs e)
{
ExpandAll ();
}
public void ExpandAll(){
foreach (Group grp in items.Children) {
foreach (GraphicObject go in grp.Children) {
Expandable exp = go as Expandable;
if (exp == null)
continue;
TreeView subTV = exp.FindByName ("List") as TreeView;
if (subTV == null)
continue;
EventHandler handler = null;
handler = delegate(object sender, EventArgs e) {
TreeView tv = sender as TreeView;
tv.Loaded -= handler;
tv.ExpandAll ();
};
subTV.Loaded += handler;
exp.IsExpanded = true;
}
}
}
}
}
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