private void OnComponentRemoving(object sender, ComponentEventArgs e)
{
// If our group is being removed
if (e.Component == _ribbonGroup)
{
// Need access to host in order to delete a component
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
// We need to remove all containers from the group
for (int j = _ribbonGroup.Items.Count - 1; j >= 0; j--)
{
KryptonRibbonGroupContainer item = _ribbonGroup.Items[j] as KryptonRibbonGroupContainer;
_ribbonGroup.Items.Remove(item);
host.DestroyComponent(item);
}
}
}
private void OnClearItems(object sender, EventArgs e)
{
if ((_ribbonGroup != null) &&
(_ribbonGroup.Ribbon != null) &&
_ribbonGroup.RibbonTab.Groups.Contains(_ribbonGroup))
{
// Use a transaction to support undo/redo actions
DesignerTransaction transaction = _designerHost.CreateTransaction("KryptonRibbonGroup ClearItems");
try
{
// Get access to the Items property
MemberDescriptor propertyItems = TypeDescriptor.GetProperties(_ribbonGroup)["Items"];
RaiseComponentChanging(propertyItems);
// Need access to host in order to delete a component
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
// We need to remove all the items from the tab
for (int i = _ribbonGroup.Items.Count - 1; i >= 0; i--)
{
KryptonRibbonGroupContainer item = _ribbonGroup.Items[i];
_ribbonGroup.Items.Remove(item);
host.DestroyComponent(item);
}
RaiseComponentChanged(propertyItems, null, null);
}
finally
{
// If we managed to create the transaction, then do it
if (transaction != null)
{
transaction.Commit();
}
}
}
}
private void UpdateVisible(Control c)
{
if (c != null)
{
// Start with the visible state of the group element
bool visible = _ribbonTextBox.Visible;
// If we have an associated designer setup...
if (!_ribbon.InDesignHelperMode && (_ribbonTextBox.TextBoxDesigner != null))
{
// And we are not using the design helpers, then use the design specified value
visible = _ribbonTextBox.TextBoxDesigner.DesignVisible;
}
if (visible)
{
// Only visible if on the currently selected page
if ((_ribbonTextBox.RibbonTab == null) ||
(_ribbon.SelectedTab != _ribbonTextBox.RibbonTab))
{
visible = false;
}
else
{
// Check the owning group is visible
if ((_ribbonTextBox.RibbonContainer != null) &&
(_ribbonTextBox.RibbonContainer.RibbonGroup != null) &&
!_ribbonTextBox.RibbonContainer.RibbonGroup.Visible &&
!_ribbon.InDesignMode)
{
visible = false;
}
else
{
// Check that the group is not collapsed
if ((_ribbonTextBox.RibbonContainer.RibbonGroup.IsCollapsed) &&
((_ribbon.GetControllerControl(_ribbonTextBox.TextBox) is KryptonRibbon) ||
(_ribbon.GetControllerControl(_ribbonTextBox.TextBox) is VisualPopupMinimized)))
{
visible = false;
}
else
{
// Check that the hierarchy of containers are all visible
KryptonRibbonGroupContainer container = _ribbonTextBox.RibbonContainer;
// Keep going until we have searched the entire parent chain of containers
while (container != null)
{
// If any parent container is not visible, then we are not visible
if (!container.Visible)
{
visible = false;
break;
}
// Move up a level
container = container.RibbonContainer;
}
}
}
}
}
c.Visible = visible;
}
}
