private void GridRow_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
DependencyObject dep = e.OriginalSource as DependencyObject;
while ((dep != null) && !(dep is ContentPresenter))
{
dep = VisualTreeHelper.GetParent(dep);
}
SelectedAlbum = null;
SelectedTrack = null;
ContentPresenter cp = dep as ContentPresenter;
if (cp != null)
{
if (cp.DataContext is Track)
{
SelectedTrack = cp.DataContext as Track;
}
else
{
AlbumViewItem item = dataGrid1.ItemContainerGenerator.ItemFromContainer(dep) as AlbumViewItem;
SelectedAlbum = item;
}
if ((SelectedAlbum != null || SelectedTrack != null) && OpenContextMenu != null)
{
OpenContextMenu(sender, e);
}
}
}
private bool FilterRow(object row)
{
if (string.IsNullOrEmpty(FilterString))
{
return(true);
}
string filterString = FilterString.ToLower();
bool found = false;
AlbumViewItem avi = row as AlbumViewItem;
if (avi.Artist != null && avi.Artist.ToLower().IndexOf(filterString) >= 0)
{
return(true);
}
if (avi.Title != null && avi.Title.ToLower().IndexOf(filterString) >= 0)
{
return(true);
}
if (avi.Genre != null && avi.Genre.ToLower().IndexOf(filterString) >= 0)
{
return(true);
}
if (avi.Year != null && avi.Year.ToLower().IndexOf(filterString) >= 0)
{
return(true);
}
foreach (Track t in avi.Tracks)
{
if (t.Artist != null && t.Artist.ToLower().IndexOf(filterString) >= 0)
{
found = true;
break;
}
if (t.Title != null && t.Title.ToLower().IndexOf(filterString) >= 0)
{
found = true;
break;
}
}
return(found);
}
private void GridRow_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
DependencyObject dep = e.OriginalSource as DependencyObject;
while ((dep != null) && !(dep is ContentPresenter))
{
dep = VisualTreeHelper.GetParent(dep);
}
AlbumViewItem item = dataGrid1.ItemContainerGenerator.ItemFromContainer(dep) as AlbumViewItem;
SelectedAlbum = item;
if (SelectionChanged != null)
{
SelectionChanged(sender, new EventArgs());
}
}
// I've isolated the layout specific code to this region. If you want to do something other than tiling, this is
// where you'll make your changes
/// <summary>
/// Calculate the extent of the view based on the available size
/// </summary>
/// <param name="availableSize">available size</param>
/// <param name="itemCount">number of data items</param>
/// <returns></returns>
private Size CalculateExtent(Size availableSize)
{
if (totalHeight > 0)
{
return(new Size(availableSize.Width, totalHeight));
}
// Die Gesamtgröße der Liste berechnen.
ItemsControl itemsControl = ItemsControl.GetItemsOwner(this);
// We need to access InternalChildren before the generator to work around a bug
UIElementCollection children = this.InternalChildren;
IItemContainerGenerator generator = this.ItemContainerGenerator;
// Get the generator position of the first visible data item
GeneratorPosition startPos = generator.GeneratorPositionFromIndex(0);
using (generator.StartAt(startPos, GeneratorDirection.Forward, true))
{
for (int itemIndex = 0; itemIndex < itemsControl.Items.Count; ++itemIndex)
{
itemsTopPosition.Add(totalHeight);
// Get or create the child
bool newlyRealized;
UIElement child = generator.GenerateNext(out newlyRealized) as UIElement;
generator.PrepareItemContainer(child);
// Measurements will depend on layout algorithm
//child.Measure(GetChildSize());
AlbumViewItem avi = itemsControl.Items[itemIndex] as AlbumViewItem;
double height = Math.Max((avi.Tracks.Count * 18) + 10, 150);
totalHeight += height;
itemsHeight.Add(height);
}
}
generator.RemoveAll();
// See how big we are
return(new Size(this.ActualWidth, totalHeight));
}
void bwAlbumView_DoWork(object sender, DoWorkEventArgs e)
{
TrackDataView TrackView;
CDQuery = DataBase.ExecuteTrackQuery();
// Hier die Felder auflisten, die ich für die Albumansicht brauche
FieldCollection fc = new FieldCollection();
fc.AddRange(new Field[] {
Field.ArtistCDName,
Field.ArtistCDSaveAs,
Field.Title,
Field.CDCoverFront,
Field.Category,
Field.ArchiveNumber,
Field.YearRecorded,
Field.TrackNumber,
Field.TrackTitle,
Field.TrackLength,
Field.TrackRating,
Field.ArtistTrackName,
Field.ComposerTrackName,
Field.TrackSoundFile
});
SortFieldCollection sfc = new SortFieldCollection();
sfc.Add(Field.ArtistCDSaveAs);
sfc.Add(Field.Title);
sfc.Add(Field.CDID);
sfc.Add(Field.TrackNumber);
TrackView = new TrackDataView(DataBase, CDQuery, Condition, sfc, fc);
int count = 0;
List <AlbumViewItem> items = new List <AlbumViewItem>();
AlbumViewItem newItem = null;
string lastArtist = "";
string lastTitle = "";
int lastcdid = 0;
for (int row = 0; row < TrackView.Rows.Count; row++)
{
string artistDisplay = TrackView.GetRowStringValue(row, Field.ArtistCDName);
string artist = TrackView.GetRowStringValue(row, Field.ArtistCDSaveAs);
string title = TrackView.GetRowStringValue(row, Field.Title);
int cdid = TrackView.GetCDID(row);
if (artist != lastArtist || title != lastTitle || cdid != lastcdid)
{
if (newItem != null)
{
items.Add(newItem);
}
newItem = new AlbumViewItem();
newItem.ID = cdid;
newItem.Artist = artistDisplay;
newItem.Title = title;
newItem.ImageFilename = TrackView.GetRowStringValue(row, Field.CDCoverFront);
newItem.Genre = TrackView.GetRowStringValue(row, Field.Category);
newItem.ArchiveNumber = TrackView.GetRowStringValue(row, Field.ArchiveNumber);
int yearRecorded = (int)TrackView.GetRowRawValue(row, Field.YearRecorded);
if (yearRecorded > 0)
{
newItem.Year = yearRecorded.ToString();
}
newItem.Tracks = new List <Track>();
lastArtist = artist;
lastTitle = title;
}
if (newItem != null)
{
Track track = new Track();
track.TrackNumber = (int)TrackView.GetRowRawValue(row, Field.TrackNumber);
track.Title = TrackView.GetRowStringValue(row, Field.TrackTitle);
track.Length = (int)TrackView.GetRowRawValue(row, Field.TrackLength);
track.Rating = (int)TrackView.GetRowRawValue(row, Field.TrackRating);
track.Artist = TrackView.GetRowStringValue(row, Field.ArtistTrackName);
track.Composer = TrackView.GetRowStringValue(row, Field.ComposerTrackName);
track.Soundfile = TrackView.GetRowStringValue(row, Field.TrackSoundFile);
track.ID = TrackView.GetTrackID(row);
newItem.Tracks.Add(track);
}
//toolStripStatusProgressBar.Value = (int)(100.0 / TrackView.Rows.Count * count);
count++;
lastcdid = cdid;
}
if (newItem != null)
{
items.Add(newItem);
}
e.Result = items;
}
