protected void OnButtonOrdinalDownClicked(object sender, EventArgs e)
{
TreeIter SelectIter, NextIter;
treeviewref.Selection.GetSelected(out SelectIter);
NextIter = SelectIter = filter.ConvertIterToChildIter(SelectIter);
RefListStore.IterNext(ref NextIter);
RefListStore.Swap(SelectIter, NextIter);
OnTreeviewrefCursorChanged(treeviewref, EventArgs.Empty);
TestOrdinalChanged();
}
public override void LaunchDialogue ()
{
//the Type in the collection
IList collection = (IList) Value;
string displayName = Property.DisplayName;
//populate list with existing items
ListStore itemStore = new ListStore (typeof (object), typeof (int), typeof (string));
for (int i=0; i<collection.Count; i++)
itemStore.AppendValues(collection [i], i, collection [i].ToString ());
#region Building Dialogue
TreeView itemTree;
PropertyGrid grid;
TreeIter previousIter = TreeIter.Zero;
//dialogue and buttons
Dialog dialog = new Dialog () {
Title = displayName + " Editor",
Modal = true,
AllowGrow = true,
AllowShrink = true,
};
var toplevel = this.Container.Toplevel as Window;
if (toplevel != null)
dialog.TransientFor = toplevel;
dialog.AddActionWidget (new Button (Stock.Cancel), ResponseType.Cancel);
dialog.AddActionWidget (new Button (Stock.Ok), ResponseType.Ok);
//three columns for items, sorting, PropGrid
HBox hBox = new HBox ();
dialog.VBox.PackStart (hBox, true, true, 5);
//propGrid at end
grid = new PropertyGrid (base.EditorManager) {
CurrentObject = null,
WidthRequest = 200,
ShowHelp = false
};
hBox.PackEnd (grid, true, true, 5);
//followed by a ButtonBox
VBox buttonBox = new VBox ();
buttonBox.Spacing = 6;
hBox.PackEnd (buttonBox, false, false, 5);
//add/remove buttons
Button addButton = new Button (new Image (Stock.Add, IconSize.Button));
buttonBox.PackStart (addButton, false, false, 0);
if (types [0].IsAbstract)
addButton.Sensitive = false;
Button removeButton = new Button (new Gtk.Image (Stock.Remove, IconSize.Button));
buttonBox.PackStart (removeButton, false, false, 0);
//sorting buttons
Button upButton = new Button (new Image (Stock.GoUp, IconSize.Button));
buttonBox.PackStart (upButton, false, false, 0);
Button downButton = new Button (new Image (Stock.GoDown, IconSize.Button));
buttonBox.PackStart (downButton, false, false, 0);
//Third column has list (TreeView) in a ScrolledWindow
ScrolledWindow listScroll = new ScrolledWindow ();
listScroll.WidthRequest = 200;
listScroll.HeightRequest = 320;
hBox.PackStart (listScroll, false, false, 5);
itemTree = new TreeView (itemStore);
itemTree.Selection.Mode = SelectionMode.Single;
itemTree.HeadersVisible = false;
listScroll.AddWithViewport (itemTree);
//renderers and attribs for TreeView
CellRenderer rdr = new CellRendererText ();
itemTree.AppendColumn (new TreeViewColumn ("Index", rdr, "text", 1));
rdr = new CellRendererText ();
itemTree.AppendColumn (new TreeViewColumn ("Object", rdr, "text", 2));
#endregion
#region Events
addButton.Clicked += delegate {
//create the object
object instance = System.Activator.CreateInstance (types[0]);
//get existing selection and insert after it
TreeIter oldIter, newIter;
if (itemTree.Selection.GetSelected (out oldIter))
newIter = itemStore.InsertAfter (oldIter);
//or append if no previous selection
else
newIter = itemStore.Append ();
itemStore.SetValue (newIter, 0, instance);
//select, set name and update all the indices
itemTree.Selection.SelectIter (newIter);
UpdateName (itemStore, newIter);
UpdateIndices (itemStore);
};
removeButton.Clicked += delegate {
//get selected iter and the replacement selection
TreeIter iter, newSelection;
if (!itemTree.Selection.GetSelected (out iter))
return;
newSelection = iter;
if (!IterPrev (itemStore, ref newSelection)) {
newSelection = iter;
if (!itemStore.IterNext (ref newSelection))
newSelection = TreeIter.Zero;
}
//new selection. Zeroing previousIter prevents trying to update name of deleted iter.
previousIter = TreeIter.Zero;
if (itemStore.IterIsValid (newSelection))
itemTree.Selection.SelectIter (newSelection);
//and the removal and index update
itemStore.Remove (ref iter);
UpdateIndices (itemStore);
};
upButton.Clicked += delegate {
TreeIter iter, prev;
if (!itemTree.Selection.GetSelected (out iter))
return;
//get previous iter
prev = iter;
if (!IterPrev (itemStore, ref prev))
return;
//swap the two
itemStore.Swap (iter, prev);
//swap indices too
object prevVal = itemStore.GetValue (prev, 1);
object iterVal = itemStore.GetValue (iter, 1);
itemStore.SetValue (prev, 1, iterVal);
itemStore.SetValue (iter, 1, prevVal);
};
downButton.Clicked += delegate {
TreeIter iter, next;
if (!itemTree.Selection.GetSelected (out iter))
return;
//get next iter
next = iter;
if (!itemStore.IterNext (ref next))
return;
//swap the two
itemStore.Swap (iter, next);
//swap indices too
object nextVal = itemStore.GetValue (next, 1);
object iterVal = itemStore.GetValue (iter, 1);
itemStore.SetValue (next, 1, iterVal);
itemStore.SetValue (iter, 1, nextVal);
};
itemTree.Selection.Changed += delegate {
TreeIter iter;
if (!itemTree.Selection.GetSelected (out iter)) {
removeButton.Sensitive = false;
return;
}
removeButton.Sensitive = true;
//update grid
object obj = itemStore.GetValue (iter, 0);
grid.CurrentObject = obj;
//update previously selected iter's name
UpdateName (itemStore, previousIter);
//update current selection so we can update
//name next selection change
previousIter = iter;
};
grid.Changed += delegate {
TreeIter iter;
if (itemTree.Selection.GetSelected (out iter))
UpdateName (itemStore, iter);
};
TreeIter selectionIter;
removeButton.Sensitive = itemTree.Selection.GetSelected (out selectionIter);
dialog.ShowAll ();
grid.ShowToolbar = false;
#endregion
//if 'OK' put items back in collection
//if (MonoDevelop.Ide.MessageService.ShowCustomDialog (dialog, toplevel) == (int)ResponseType.Ok)
{
DesignerTransaction tran = CreateTransaction (Instance);
object old = collection;
try {
collection.Clear();
foreach (object[] o in itemStore)
collection.Add (o[0]);
EndTransaction (Instance, tran, old, collection, true);
}
catch {
EndTransaction (Instance, tran, old, collection, false);
throw;
}
}
}