public TransactedTreeBuilder (ExtensibleTreeView tree, TransactedNodeStore tstore, Gtk.TreeIter it)
{
this.tree = tree;
this.tstore = tstore;
navigator = new TreeNodeNavigator (tree, it);
CheckNode ();
}
public TransactedTreeBuilder(ExtensibleTreeView tree, TransactedNodeStore tstore, Gtk.TreeIter it)
{
this.tree = tree;
this.tstore = tstore;
navigator = new TreeNodeNavigator(tree, it);
CheckNode();
}
void HandleOnEdit(object o, Gtk.EditedArgs e)
{
text_render.Editable = false;
Gtk.TreeIter iter;
if (!store.GetIterFromString (out iter, e.Path))
throw new Exception("Error calculating iter for path " + e.Path);
if (e.NewText == null || e.NewText.Length == 0) {
return;
}
ITreeNavigator nav = new TreeNodeNavigator (this, iter);
NodePosition pos = nav.CurrentPosition;
NodeBuilder[] chain = (NodeBuilder[]) store.GetValue (iter, BuilderChainColumn);
foreach (NodeBuilder b in chain) {
NodeCommandHandler handler = b.CommandHandler;
handler.SetCurrentNode (nav);
handler.RenameItem (e.NewText);
nav.MoveToPosition (pos);
}
}
bool CheckAndDrop(int x, int y, bool drop, Gdk.DragContext ctx, object obj)
{
Gtk.TreePath path;
Gtk.TreeViewDropPosition pos;
if (!tree.GetDestRowAtPos (x, y, out path, out pos)) return false;
Gtk.TreeIter iter;
if (!store.GetIter (out iter, path)) return false;
TreeNodeNavigator nav = new TreeNodeNavigator (this, iter);
NodeBuilder[] chain = nav.BuilderChain;
bool foundHandler = false;
DragOperation oper = ctx.Action == Gdk.DragAction.Copy ? DragOperation.Copy : DragOperation.Move;
foreach (NodeBuilder nb in chain) {
NodeCommandHandler handler = nb.CommandHandler;
handler.SetCurrentNode (nav);
if (handler.CanDropNode (obj, oper)) {
foundHandler = true;
if (drop)
handler.OnNodeDrop (obj, oper);
}
}
return foundHandler;
}
internal void NotifyInserted(Gtk.TreeIter it, object dataObject)
{
if (callbacks.Count > 0) {
ArrayList list = callbacks [dataObject] as ArrayList;
if (list != null) {
ITreeNavigator nav = new TreeNodeNavigator (this, it);
NodePosition pos = nav.CurrentPosition;
foreach (TreeNodeCallback callback in list) {
callback (nav);
nav.MoveToPosition (pos);
}
callbacks.Remove (dataObject);
}
}
}
internal bool GetIterFromNamePath(string path, out Gtk.TreeIter iter)
{
if (!store.GetIterFirst (out iter))
return false;
TreeNodeNavigator nav = new TreeNodeNavigator (this, iter);
string[] names = path.Split ('/');
int n = 0;
bool more;
do {
string name = names [n].Replace ("_%_","/");
name = name.Replace ("%%","%");
if (nav.NodeName == name) {
iter = nav.CurrentPosition._iter;
if (++n == names.Length) return true;
more = nav.MoveToFirstChild ();
} else
more = nav.MoveNext ();
} while (more);
return false;
}
public virtual void Initialize(string label, string icon, NodeBuilder[] builders, TreePadOption[] options)
{
// Create default options
this.options = options;
globalOptions = new TreeOptions ();
foreach (TreePadOption op in options)
globalOptions [op.Id] = op.DefaultValue;
globalOptions.Pad = this;
// Check that there is only one node builder per type
Hashtable bc = new Hashtable ();
foreach (NodeBuilder nb in builders) {
TypeNodeBuilder tnb = nb as TypeNodeBuilder;
if (tnb != null) {
TypeNodeBuilder other = (TypeNodeBuilder) bc [tnb.NodeDataType];
if (other != null)
throw new ApplicationException (string.Format ("The type node builder {0} can't be used in this context because the type {1} is already handled by {2}", nb.GetType(), tnb.NodeDataType, other.GetType()));
bc [tnb.NodeDataType] = tnb;
}
else if (!(nb is NodeBuilderExtension))
throw new InvalidOperationException (string.Format ("Invalid NodeBuilder type: {0}. NodeBuilders must inherit either from TypeNodeBuilder or NodeBuilderExtension", nb.GetType()));
}
NodeBuilders = builders;
Title = label;
Icon = icon;
builderContext = new TreeBuilderContext (this);
tree = new Gtk.TreeView ();
/*
0 -- Text
1 -- Icon (Open)
2 -- Icon (Closed)
3 -- Node Data
4 -- Builder chain
5 -- Pango weight
6 -- Expanded
*/
store = new Gtk.TreeStore (typeof (string), typeof (Gdk.Pixbuf), typeof (Gdk.Pixbuf), typeof (object), typeof (object), typeof(int), typeof(bool));
tree.Model = store;
tree.EnableModelDragDest (target_table, Gdk.DragAction.Copy | Gdk.DragAction.Move);
Gtk.Drag.SourceSet (tree, Gdk.ModifierType.Button1Mask, target_table, Gdk.DragAction.Copy | Gdk.DragAction.Move);
store.DefaultSortFunc = new Gtk.TreeIterCompareFunc (CompareNodes);
store.SetSortColumnId (/* GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID */ -1, Gtk.SortType.Ascending);
tree.HeadersVisible = false;
tree.SearchColumn = 0;
tree.EnableSearch = true;
complete_column = new Gtk.TreeViewColumn ();
complete_column.Title = "column";
Gtk.CellRendererPixbuf pix_render = new Gtk.CellRendererPixbuf ();
complete_column.PackStart (pix_render, false);
complete_column.AddAttribute (pix_render, "pixbuf", OpenIconColumn);
complete_column.AddAttribute (pix_render, "pixbuf-expander-open", OpenIconColumn);
complete_column.AddAttribute (pix_render, "pixbuf-expander-closed", ClosedIconColumn);
text_render = new Gtk.CellRendererText ();
text_render.Edited += new Gtk.EditedHandler (HandleOnEdit);
complete_column.PackStart (text_render, true);
complete_column.AddAttribute (text_render, "text", TextColumn);
complete_column.AddAttribute (text_render, "weight", WeightColumn);
tree.AppendColumn (complete_column);
Gtk.ScrolledWindow sw = new Gtk.ScrolledWindow ();
sw.Add(tree);
contentPanel = new Gtk.Frame ();
contentPanel.Add(sw);
tree.TestExpandRow += new Gtk.TestExpandRowHandler (OnTestExpandRow);
tree.RowActivated += new Gtk.RowActivatedHandler(OnNodeActivated);
contentPanel.ButtonReleaseEvent += new Gtk.ButtonReleaseEventHandler(OnButtonRelease);
contentPanel.PopupMenu += new Gtk.PopupMenuHandler (OnPopupMenu);
foreach (NodeBuilder nb in builders)
nb.SetContext (builderContext);
workNode = new TreeNodeNavigator (this);
compareNode1 = new TreeNodeNavigator (this);
compareNode2 = new TreeNodeNavigator (this);
tree.DragBegin += new Gtk.DragBeginHandler (OnDragBegin);
tree.DragDataReceived += new Gtk.DragDataReceivedHandler (OnDragDataReceived);
tree.DragDrop += new Gtk.DragDropHandler (OnDragDrop);
tree.DragEnd += new Gtk.DragEndHandler (OnDragEnd);
tree.DragMotion += new Gtk.DragMotionHandler (OnDragMotion);
tree.CursorChanged += new EventHandler (OnSelectionChanged);
contentPanel.ShowAll ();
}
