/// <summary>
/// Fills or refreshes the supplied listview with the current cards and based on the supplied filter.
/// </summary>
/// <param name="listView">The list view.</param>
/// <param name="filter">The card filter.</param>
/// <param name="preserveSelection">if set to <c>true</c> [preserve selection].</param>
/// <remarks>Documented by Dev02, 2007-12-17</remarks>
public void RefreshListView(ListView listView, MaintainCardFilter filter, bool preserveSelection)
{
List<int> selectedIDs = null;
int topIndex = -1;
listView.BeginUpdate();
//save selection
if (preserveSelection)
{
selectedIDs = new List<int>();
foreach (ListViewItem lvi in listView.SelectedItems)
selectedIDs.Add((lvi.Tag as ICard).Id);
//preserve scroll position
if (listView.TopItem != null)
topIndex = listView.TopItem.Index;
}
else
{
//[ML-770] Clear selection when it should not be preserved
listView.SelectedIndices.Clear();
}
//add the items
listView.Items.Clear();
listView.Items.AddRange(GetCards(filter).ToArray());
//restore selection
if (selectedIDs != null && selectedIDs.Count > 0)
{
if (selectedIDs.Count < indexIDs.Count / 4)
{
//faster for a low amount of selected items
foreach (int ID in selectedIDs)
{
ListViewItem lvi = cards[ID];
if (listView.Items.Contains(lvi))
{
listView.Items[listView.Items.IndexOf(lvi)].Selected = true;
}
}
}
else
{
//faster for a high amount of selected items
foreach (ListViewItem lvi in listView.Items)
{
if (selectedIDs.Contains((lvi.Tag as ICard).Id))
lvi.Selected = true;
}
}
}
//ensure the first selected item to be visible
if (preserveSelection)
{
if (topIndex > 0 && topIndex < listView.Items.Count)
listView.TopItem = listView.Items[topIndex];
else if (listView.SelectedItems.Count > 0)
listView.SelectedItems[0].EnsureVisible();
}
listView.EndUpdate();
}
/// <summary>
/// Redraws the listView with the current values.
/// </summary>
/// <param name="preserveSelection">if set to <c>true</c> [preserve selection].</param>
/// <remarks>Documented by Dev00, 2007-07-19</remarks>
private void RefreshListView(bool preserveSelection)
{
Cursor.Current = Cursors.WaitCursor;
MaintainCardFilter filter = new MaintainCardFilter();
filter.Chapter = (comboBoxShowChapter.SelectedItem is IChapter) ? ((IChapter)comboBoxShowChapter.SelectedItem).Id : -1;
filter.CardActive = (comboBoxShowChapter.SelectedItem is string) ?
comboBoxShowChapter.SelectedItem as string == Resources.ACTIVE_CARDS ? true : comboBoxShowChapter.SelectedItem as string == Resources.INACTIVE_CARDS ? false : (bool?)null : (bool?)null;
filter.SearchString = SearchBox.Text;
CardDB.RefreshListView(listViewCards, filter, preserveSelection);
labelSelectedCardsCount.Text = CardDB.TotalCardCount.ToString();
listViewCards.Sort();
Cursor.Current = Cursors.Default;
}
/// <summary>
/// Gets the cards matching the filter.
/// </summary>
/// <param name="filter">The filter.</param>
/// <returns>List of matching cards.</returns>
/// <remarks>Documented by Dev02, 2007-12-17</remarks>
public List<ListViewItem> GetCards(MaintainCardFilter filter)
{
List<ListViewItem> getCards = new List<ListViewItem>();
List<int> foundIndezes = new List<int>();
if (filter.SearchString.Length > 0)
{
if (filter.CaseSensitive)
{
for (int i = 0; i < indexStrings.Count; i++)
{
if (indexStrings[i].Contains(filter.SearchString))
foundIndezes.Add(i);
}
}
else
{
for (int i = 0; i < indexStrings.Count; i++)
{
if (indexStrings[i].ToLower().Contains(filter.SearchString.ToLower()))
foundIndezes.Add(i);
}
}
foreach (int index in foundIndezes)
{
if ((filter.Chapter == -1 || filter.Chapter == indexChapters[index]) && (!filter.CardActive.HasValue || (cards[indexIDs[index]].Tag as ICard).Active == filter.CardActive.Value))
getCards.Add(cards[indexIDs[index]]);
}
}
else
{
for (int index = 0; index < indexStrings.Count; index++)
{
if ((filter.Chapter == -1 || filter.Chapter == indexChapters[index]) && (!filter.CardActive.HasValue || (cards[indexIDs[index]].Tag as ICard).Active == filter.CardActive.Value))
getCards.Add(cards[indexIDs[index]]);
}
}
return getCards;
}
