/// <summary>
/// Configure the specified tree node using the fields in 'Description'.
/// Recursively descends through all child nodes as well.
/// </summary>
/// <remarks>
/// If any models have been deleted, calls to this function will not
/// cause those models to be removed from the tree. When child models are
/// updated, this function will attempt to update any existing tree nodes
/// representing the children - if none exist, they will be added.
/// </remarks>
/// <param name="node">The node.</param>
/// <param name="description">The description.</param>
/// <param name="checkForExisting">
/// If set to true, will attempt to update existing nodes instead of creating
/// new ones, where possible. This should only be set to false when populating
/// the tree control for the first time, and when set to false it will improve
/// performance considerably, especially for large tree structures.
/// </param>
private void RefreshNode(TreeIter node, TreeViewNode description, bool checkForExisting = true)
{
Gdk.Pixbuf pixbuf = null;
if (MasterView != null && MasterView.HasResource(description.ResourceNameForImage))
{
pixbuf = new Gdk.Pixbuf(null, description.ResourceNameForImage);
}
string tick = description.Checked ? "✓" : "";
treemodel.SetValues(node, description.Name, pixbuf, description.ToolTip, tick, description.Colour, description.Strikethrough);
foreach (TreeViewNode child in description.Children)
{
string path = GetFullPath(treemodel.GetPath(node));
TreeIter iter;
if (checkForExisting)
{
if (FindChild(node, child.Name, out TreeIter matchingChild))
{
iter = matchingChild;
}
else
{
iter = treemodel.AppendNode(node);
}
}
else
{
iter = treemodel.AppendNode(node);
}
RefreshNode(iter, child);
}
}
/// <summary>
/// Configure the specified tree node using the fields in 'Description'.
/// Recursively descends through all child nodes as well.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="description">The description.</param>
private void RefreshNode(TreeIter node, TreeViewNode description)
{
Gdk.Pixbuf pixbuf = null;
if (MasterView.HasResource(description.ResourceNameForImage))
{
pixbuf = new Gdk.Pixbuf(null, description.ResourceNameForImage);
}
string tick = description.Checked ? "✔" : "";
treemodel.SetValues(node, description.Name, pixbuf, description.ToolTip, tick, description.Colour, description.Strikethrough);
for (int i = 0; i < description.Children.Count; i++)
{
TreeIter iter = treemodel.AppendNode(node);
RefreshNode(iter, description.Children[i]);
}
}
/// <summary>
/// Configure the specified tree node using the fields in 'Description'.
/// Recursively descends through all child nodes as well.
/// </summary>
/// <remarks>
/// If any models have been deleted, calls to this function will not
/// cause those models to be removed from the tree. When child models are
/// updated, this function will attempt to update any existing tree nodes
/// representing the children - if none exist, they will be added.
/// </remarks>
/// <param name="node">The node.</param>
/// <param name="description">The description.</param>
private void RefreshNode(TreeIter node, TreeViewNode description)
{
Gdk.Pixbuf pixbuf = null;
if (MasterView != null && MasterView.HasResource(description.ResourceNameForImage))
{
pixbuf = new Gdk.Pixbuf(null, description.ResourceNameForImage);
}
string tick = description.Checked ? "✓" : "";
treemodel.SetValues(node, description.Name, pixbuf, description.ToolTip, tick, description.Colour, description.Strikethrough);
foreach (TreeViewNode child in description.Children)
{
string path = GetFullPath(treemodel.GetPath(node));
TreeIter iter = FindNode($"{path}.{child.Name}");
if (iter.Equals(TreeIter.Zero))
{
iter = treemodel.AppendNode(node);
}
RefreshNode(iter, child);
}
}
public void PopulateContextMenu(List <MenuDescriptionArgs> menuDescriptions)
{
ClearPopup();
foreach (MenuDescriptionArgs description in menuDescriptions)
{
MenuItem item;
if (description.ShowCheckbox)
{
CheckMenuItem checkItem = new CheckMenuItem(description.Name);
checkItem.Active = description.Checked;
item = checkItem;
}
else if (!String.IsNullOrEmpty(description.ResourceNameForImage) && MasterView.HasResource(description.ResourceNameForImage))
{
item = WidgetExtensions.CreateImageMenuItem(description.Name, new Image(null, description.ResourceNameForImage));
}
else
{
item = new MenuItem(description.Name);
}
if (!String.IsNullOrEmpty(description.ShortcutKey))
{
string keyName = String.Empty;
Gdk.ModifierType modifier = Gdk.ModifierType.None;
string[] keyNames = description.ShortcutKey.Split(new Char[] { '+' });
foreach (string name in keyNames)
{
if (name == "Ctrl")
{
modifier |= Gdk.ModifierType.ControlMask;
}
else if (name == "Shift")
{
modifier |= Gdk.ModifierType.ShiftMask;
}
else if (name == "Alt")
{
modifier |= Gdk.ModifierType.Mod1Mask;
}
else if (name == "Del")
{
keyName = "Delete";
}
else
{
keyName = name;
}
}
try
{
Gdk.Key accelKey = (Gdk.Key)Enum.Parse(typeof(Gdk.Key), keyName, false);
item.AddAccelerator("activate", accel, (uint)accelKey, modifier, AccelFlags.Visible);
}
catch
{
}
}
item.Activated += description.OnClick;
popup.Append(item);
}
if (popup.AttachWidget == null)
{
popup.AttachToWidget(Listview, null);
}
popup.ShowAll();
}
