protected override void UpdateItemSpacing()
{
if (_layout == null)
{
return;
}
if (_itemDecoration != null)
{
RemoveItemDecoration(_itemDecoration);
}
_itemDecoration = CreateSpacingDecoration(_layout);
AddItemDecoration(_itemDecoration);
var adapter = GetAdapter();
if (adapter != null)
{
adapter.NotifyItemChanged(_oldPosition);
Carousel.ScrollTo(_oldPosition, position: Xamarin.Forms.ScrollToPosition.Center);
}
base.UpdateItemSpacing();
}
void UpdateItemDecoration()
{
if (_itemDecoration != null)
{
RemoveItemDecoration(_itemDecoration);
}
_itemDecoration = CreateSpacingDecoration(ItemsLayout);
AddItemDecoration(_itemDecoration);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_itemDecoration != null)
{
_itemDecoration.Dispose();
_itemDecoration = null;
}
}
base.Dispose(disposing);
}
protected override void Dispose(bool disposing)
{
if (disposing && !_disposed)
{
_disposed = true;
_carouselViewLoopManager?.SetItemsSource(null);
_carouselViewLoopManager = null;
if (_itemDecoration != null)
{
_itemDecoration.Dispose();
_itemDecoration = null;
}
ClearLayoutListener();
}
base.Dispose(disposing);
}
// Input data and decoration for cell
private void listItems_FormatCell(object sender, BrightIdeasSoftware.FormatCellEventArgs e)
{
try
{
ItemMasterRow item = (ItemMasterRow)e.Model;
if (e.ColumnIndex == 0)
{
BrightIdeasSoftware.ImageDecoration imageDeco = new BrightIdeasSoftware.ImageDecoration();
imageDeco.Image = listIcons.Images[item.ItemTypeID.ToString()];
imageDeco.Transparency = 255;
imageDeco.Alignment = ContentAlignment.MiddleCenter;
imageDeco.ShrinkToWidth = true;
e.SubItem.Decoration = imageDeco;
}
else if (e.ColumnIndex == 1)
{
ItemDecoration decoration = new ItemDecoration();
decoration.Title = item.Title;
if (item.PubYear == "-1" || item.PubYear == null)
{
if (Regex.Match(item.PubDate, @"\d{4}").Success)
decoration.Year = Regex.Match(item.PubDate, @"\d{4}").Value;
else
decoration.Year = "";
}
else
decoration.Year = item.PubYear;
decoration.Authors = item.Author = CitationTools.GetAuthorsString(item.Authors);
e.SubItem.Decoration = decoration;
}
else if (e.ColumnIndex == 2) //如果有 3 行(通常都是 連結 或者 pdf 檔案的圖示)
{
if (item.ItemFile.Length > 0 && item.ItemFile != string.Empty)
{
BrightIdeasSoftware.ImageDecoration imageDeco = new BrightIdeasSoftware.ImageDecoration();
imageDeco.Image = CitationTools.GetItemFileIcon(item.ItemFile);
if (imageDeco.Image != null)
{
imageDeco.Transparency = 255;
imageDeco.Offset = new Size(-5, 0);
imageDeco.ShrinkToWidth = true;
imageDeco.Alignment = ContentAlignment.MiddleRight;
e.SubItem.Decoration = imageDeco;
}
}
else if (item.ItemTypeID == ItemTypes.WebPage)
{
BrightIdeasSoftware.ImageDecoration imageDeco = new BrightIdeasSoftware.ImageDecoration();
imageDeco.Image = CitationTools.GetItemFileIcon("wizfolio.wfweb");
if (imageDeco.Image != null)
{
imageDeco.Transparency = 255;
imageDeco.Offset = new Size(-5, 0);
imageDeco.ShrinkToWidth = true;
imageDeco.Alignment = ContentAlignment.MiddleRight;
e.SubItem.Decoration = imageDeco;
}
}
}
}
catch(Exception ex)
{
log.WriteLine(LogType.Error, "MasterControl::listItems_FormatCell", ex.ToString());
}
}