public static HistoryItem FromDataRow(HistoryList list, DataRow row)
{
if (row == null)
{
throw new ArgumentNullException(nameof(row));
}
var ret = new HistoryItem(list);
ret._location = row.GetString("path");
ret._locationOnDisk = row.GetString("path");
ret._rating = row.GetInt("rating");
var bytes = row.GetBytes("thumb");
if (bytes != null)
{
ret._thumbnail = new CompressedImage(bytes);
}
return(ret);
}
public HistoryItem AddHistory(HistoryItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
_items.Insert(0, item);
while (_items.Count > _maxHistory)
{
var removeItem = _items[_items.Count - 1];
if (removeItem == _selectedItem)
{
_selectedItem = null;
}
_items.RemoveAt(_items.Count - 1);
}
UpdateLayout();
Invalidate();
return(item);
}
private void SelectItem(HistoryItem item)
{
var oldSel = _selectedItem;
_selectedItem = item;
if (!EnsureVisible(_selectedItem))
{
if (oldSel != null)
{
var rect = oldSel.Bounds;
rect.Offset(0, -_scroll);
Invalidate(rect);
}
if (_selectedItem != null)
{
var rect = _selectedItem.Bounds;
rect.Offset(0, -_scroll);
Invalidate(rect);
}
}
}
private void HistoryList_MouseHover(object sender, EventArgs e)
{
try
{
var cursorPos = this.PointToClient(new Point(Cursor.Position.X, Cursor.Position.Y));
if (_imageToolTip != null)
{
HistoryItem hi = HitTest(cursorPos);
if (hi != null)
{
_imageToolTip.SetToolTip(this, hi.Location);
}
else
{
_imageToolTip.SetToolTip(this, string.Empty);
}
}
}
catch (Exception ex)
{
this.ShowError(ex);
}
}
public DeleteItemRequestedEventArgs(HistoryItem item)
{
Item = item;
}
public ItemActivatedEventArgs(HistoryItem item)
{
Item = item;
}
private void HistoryList_KeyDown(object sender, KeyEventArgs e)
{
try
{
switch (e.KeyCode)
{
case Keys.Left:
{
var index = GetItemIndex(_selectedItem);
if (index > 0)
{
SelectItem(GetItemByIndex(index - 1));
}
}
break;
case Keys.Right:
{
var index = GetItemIndex(_selectedItem) + 1;
if (index >= _items.Count)
{
index = _items.Count - 1;
}
SelectItem(GetItemByIndex(index));
}
break;
case Keys.Up:
if (_selectedItem == null)
{
SelectItem(GetItemByIndex(0));
}
else
{
var pt = _selectedItem.Bounds.Center();
pt.Y -= _selectedItem.Bounds.Height;
var found = false;
foreach (var item in _items)
{
if (item.Bounds.Contains(pt))
{
SelectItem(item);
found = true;
break;
}
}
if (!found)
{
SelectItem(GetItemByIndex(0));
}
}
break;
case Keys.Down:
if (_selectedItem == null)
{
SelectItem(GetItemByIndex(0));
}
else
{
var pt = _selectedItem.Bounds.Center();
pt.Y += _selectedItem.Bounds.Height;
var found = false;
foreach (var item in _items)
{
if (item.Bounds.Contains(pt))
{
SelectItem(item);
found = true;
break;
}
}
if (!found)
{
HistoryItem selItem = null;
foreach (var item in _items)
{
if (item.Bounds.Top < pt.Y && item.Bounds.Bottom > pt.Y)
{
selItem = item;
}
}
if (selItem != null)
{
SelectItem(selItem);
}
}
}
break;
case Keys.Delete:
if (_selectedItem != null)
{
FireDeleteItemRequested(_selectedItem);
}
break;
}
}
catch (Exception ex)
{
this.ShowError(ex);
}
}