/// <summary>
/// Adds tree view items for each check. Optional filter is applied. If <paramref name="filterText"/> parameter is null or empty, no filtering is applied.
/// If <paramref name="filterText"/> is not empty, then it is broken into chunks (each separated by space) and each chunk is used
/// to see whether any check property {name, tags}, case-insensitively, matches the filter. If all filter items match any of the check properties, then a check is shown.
/// Otherwise the check is hidden from the list.
/// </summary>
/// <param name="parentNode">Node under which checks are to be added.</param>
/// <param name="filterText">Filter string, entered in a text box. When empty (or only whitespaces), no filtering is applied, otherwise, each keyword (separated by whitespaces) is used to filter on anything about a check.</param>
private void AddOrUpdateChecks(ItemsControl parentNode, string filterText)
{
try
{
parentNode.BeginInit();
foreach (var check in Configuration.GetAllChecks())
{
#region Enable filter
if (!CheckMatchesFilter(check, filterText))
{
//If the check doesn't match the filter, remove if from the list if it was added.
var existingUI = parentNode.Items.ToList <TreeViewItem>()
.Where(child => (child.Header as StackPanel).Children.ToList <Label>().First().Content.ToString().Equals(check));
if (existingUI.Count() == 0)
{
continue;
}
parentNode.Items.Remove(existingUI.First());
continue;
}
#endregion
var checkPanel = new StackPanel {
Orientation = Orientation.Horizontal
};
checkPanel.Children.Add(ResourceHelper.GetImage(IconType.Check, 16, 16));
checkPanel.Children.Add(new CheckBox {
Name = "CheckCheckBox"
});
checkPanel.Children.Add(new Label {
Content = check, Name = "CheckName"
});
AddOptionalTagIconWithTooltip(checkPanel, Configuration.GetCheckTags(check));
#region Enable removal of tags when the user selects context menu
var checkTagRemoval = checkPanel.Children.ToList <Image>()
.Where(i => !ReferenceEquals(null, i.Tag))
.Where(i => i.Tag.ToString() == "RemoveTag");
if (checkTagRemoval.Count() == 1)
{
var removalIcon = checkTagRemoval.First();
var menuItems = removalIcon.ContextMenu;
foreach (var item in menuItems.Items.ToList <MenuItem>())
{
var currentItem = item;
var currentCheck = check;
RoutedEventHandler mbeh = delegate { Configuration.RemoveTagFomChecks(currentItem.Tag.ToString(), new[] { currentCheck }); UpdateViewToMatchData(); };
item.Click += mbeh;
}
}
#endregion
//See if there already is a UI item for this check
var existingPanels = parentNode.Items.ToList <TreeViewItem>()
.Where(child => (child.Header as StackPanel).Children.ToList <Label>().First().Content.ToString().Equals(check));
TreeViewItem checkNode = null;
if (existingPanels.Count() == 0)
{
checkNode = new TreeViewItem {
Header = checkPanel
};
parentNode.Items.Add(checkNode);
}
else
{
//Replace existing panel with the new panel.
checkNode = existingPanels.First();
var oldPanel = checkNode.Header as StackPanel;
checkNode.Header = checkPanel;
//Update check check box status
checkPanel.Children.ToList <CheckBox>().First().IsChecked = oldPanel.Children.ToList <CheckBox>().First().IsChecked;
}
}
}
finally
{
parentNode.EndInit();
}
}