private TItem[] QueryItems <TItem>(string sqlQuery, int limit)
where TItem : IChildItem // IChildItem is the least common denominator of all volumeitems and related interfaces (e.g. DirectoryVolumeItem, FileVolumeItem, ..., IContainerItem, IChildItem)
{
List <TItem> list = new List <TItem>();
int n = 0;
sql.ExecuteReader(sqlQuery, delegate(IDataReader reader, IRecordData readerRecData) {
while (reader.Read())
{
if ((limit > -1) && (++n > limit))
{
list.Clear();
throw new TooManyResultsException(
string.Format("The result limit of {0} items has been reached", limit));
}
// TODO : if possible, don't hardcode 'reader["ItemType"]' here,
// use something like reader[AnInterface.TypeField]. VolumeDatabase shouldnt include table-/fieldnames if possible.
// the classes representing the data should hold the names.
// TODO : why do i have to cast to (IChildItem) first?
TItem item = (TItem)(IChildItem)VolumeItem.CreateInstance((VolumeItemType)(int)(long)reader["ItemType"], this);
IVolumeDBRecord record = (IVolumeDBRecord)item;
record.SetRecordData(readerRecData);
record.IsNew = false;
list.Add(item);
}
});
return(list.ToArray());
}
internal static VolumeItem CreateInstance(VolumeItemType type, VolumeDatabase database)
{
VolumeItem item = null;
switch (type)
{
case VolumeItemType.DirectoryVolumeItem:
item = new DirectoryVolumeItem(database);
break;
case VolumeItemType.FileVolumeItem:
item = new FileVolumeItem(database);
break;
case VolumeItemType.AudioCdRootVolumeItem:
item = new AudioCdRootVolumeItem(database);
break;
case VolumeItemType.AudioTrackVolumeItem:
item = new AudioTrackVolumeItem(database);
break;
default:
throw new NotImplementedException(string.Format("Instantiation of type {0} is not implemented", type.ToString()));
}
return(item);
}
protected override void SaveToObject(VolumeDB.VolumeItem item)
{
// save form
item.Note = Note;
item.Keywords = Keywords.Trim();
item.UpdateChanges();
}
public void Write(VolumeItem item)
{
EnsureOpen();
buffer[buffCounter++] = item;
if (buffCounter >= buffer.Length)
{
database.InsertVolumeItems(buffer);
buffCounter = 0;
}
}
public void Flush()
{
EnsureOpen();
if (buffCounter > 0) {
VolumeItem[] remainder = new VolumeItem[buffCounter];
Array.Copy(buffer, remainder, buffCounter);
database.InsertVolumeItems(remainder);
buffCounter = 0;
}
}
public void Flush()
{
EnsureOpen();
if (buffCounter > 0)
{
VolumeItem[] remainder = new VolumeItem[buffCounter];
Array.Copy(buffer, remainder, buffCounter);
database.InsertVolumeItems(remainder);
buffCounter = 0;
}
}
protected override void LoadFromObject(VolumeDB.VolumeItem item)
{
//
// form
//
Note = item.Note;
Keywords = item.Keywords;
//
// info labels
//
UpdateLabel(lblItemType, itemType);
UpdateLabel(lblName, item.Name);
}
protected override void LoadFromObject(VolumeDB.VolumeItem item)
{
if (!(item is AudioTrackVolumeItem))
{
throw new ArgumentException(string.Format("must be of type {0}",
typeof(AudioTrackVolumeItem)), "item");
}
base.LoadFromObject(item);
AudioTrackVolumeItem avi = (AudioTrackVolumeItem)item;
UpdateLabel(lblDuration, avi.Duration.ToString());
UpdateLabel(lblMimeType, avi.MimeType);
}
protected override void LoadFromObject(VolumeDB.VolumeItem item)
{
if (!(item is FileVolumeItem))
{
throw new ArgumentException(string.Format("must be of type {0}",
typeof(FileVolumeItem)), "item");
}
base.LoadFromObject(item);
FileVolumeItem fvi = (FileVolumeItem)item;
UpdateLabel(lblSize, Util.GetSizeStr(fvi.Size));
UpdateLabel(lblHash, string.IsNullOrEmpty(fvi.Hash) ? "-" : fvi.Hash);
}
protected override void LoadFromObject(VolumeDB.VolumeItem item)
{
if (!(item is FileSystemVolumeItem))
{
throw new ArgumentException(string.Format("must be of type {0}",
typeof(FileSystemVolumeItem)), "item");
}
base.LoadFromObject(item);
FileSystemVolumeItem fsvi = (FileSystemVolumeItem)item;
UpdateLabel(lblLocation, fsvi.Location);
UpdateLabel(lblLastWriteTime, fsvi.LastWriteTime.ToString());
UpdateLabel(lblMimeType, string.IsNullOrEmpty(fsvi.MimeType) ? "-" : fsvi.MimeType);
}
public Gdk.Pixbuf GetIconForItem(VolumeItem item, Gtk.IconSize iconSize)
{
Gdk.Pixbuf pb;
if ((item is FileSystemVolumeItem) && (((FileSystemVolumeItem)item).IsSymLink)) {
return iconCache.GetIcon(Icon.SymLink, iconSize);
}
string mimeType = item.MimeType;
if (string.IsNullOrEmpty(mimeType))
pb = iconCache.GetIcon(DEFAULT_ICON, iconSize);
else
pb = mimeIconCache.GetIcon(mimeType, iconSize);
return pb;
}
public static Gdk.Pixbuf GetThumb(VolumeItem item, VolumeDatabase db, int size)
{
string dbDataPath = PathUtil.GetDbDataPath(db);
string volumeDataPath = DbData.GetVolumeDataPath(dbDataPath, item.VolumeID);
string thumbsPath = DbData.GetVolumeDataThumbsPath(volumeDataPath);
string thumbName = System.IO.Path.Combine(
thumbsPath,
string.Format("{0}.png", item.ItemID));
if (File.Exists(thumbName)) {
if (size > 0)
return new Gdk.Pixbuf(thumbName, size, size, false);
else
return new Gdk.Pixbuf(thumbName);
} else {
return null;
}
}
private Gdk.Pixbuf GetImage(VolumeItem item)
{
Gdk.Pixbuf img = null;
if (App.Settings.ShowThumbsInItemLists) {
int sz = IconUtils.GetIconSizeVal(ICON_SIZE);
img = PathUtil.GetThumb(item, database, sz);
}
if (img == null)
img = itemIcons.GetIconForItem(item, ICON_SIZE);
return img;
}
private TreeIter AppendDirValues(TreeStore store, TreeIter parent, bool parentIsRoot,
Gdk.Pixbuf icon, string name, VolumeItem item)
{
if ((item != null) &&
!App.Settings.ShowHiddenItems &&
item.Name.StartsWith("."))
return TreeIter.Zero;
if (parentIsRoot)
return store.AppendValues(icon, name, item);
else
return store.AppendValues(parent, icon, name, item);
}
public void Preview(VolumeItem item, VolumeDatabase db)
{
if (item == null)
throw new ArgumentNullException("item");
if (db == null)
throw new ArgumentNullException("db");
// free old pixbuf (but not a _cached_ icon!)
if (!isIcon && (this.pb != null)) {
this.pb.Dispose();
this.pb = null;
}
Pixbuf tmp = PathUtil.GetThumb(item, db, 0);
if (tmp != null) {
this.pb = tmp;
this.isIcon = false;
} else {
if (EnableGenericIcons)
this.pb = itemIcons.GetIconForItem(item, ICON_SIZE);
else
this.pb = null;
this.isIcon = true;
}
QueueDraw();
}
public void Fill(VolumeItem[] items, VolumeDatabase db)
{
if (items == null)
throw new ArgumentNullException("items");
if (db == null)
throw new ArgumentNullException("db");
ListStore store = new Gtk.ListStore( typeof(Gdk.Pixbuf),
typeof(string),
typeof(VolumeItem)); /* VolumeItem - not visible */
foreach (VolumeItem item in items) {
Volume vol;
if (!volumeCache.TryGetValue(item.VolumeID, out vol)) {
vol = item.GetOwnerVolume();
volumeCache.Add(vol.VolumeID, vol);
}
string description;
string itemName = Util.Escape(item.Name);
string volTitle = Util.Escape(vol.Title.Length > 0 ? vol.Title : STR_UNNAMED);
string archiveNo = Util.Escape(vol.ArchiveNo.Length > 0 ? vol.ArchiveNo : "-");
switch (item.GetVolumeItemType()) {
case VolumeItemType.FileVolumeItem:
case VolumeItemType.DirectoryVolumeItem:
description = string.Format("<b>{0}</b>\n<span size=\"smaller\"><i>{1}:</i> {2}\n<i>{3}:</i> {4}, <i>{5}:</i> {6}</span>",
itemName,
Util.Escape(STR_LOCATION),
Util.Escape(((FileSystemVolumeItem)item).Location),
Util.Escape(STR_VOLUME),
volTitle,
Util.Escape(STR_ARCHIVENO),
archiveNo);
break;
case VolumeItemType.AudioTrackVolumeItem:
description = string.Format("<b>{0}</b>\n<span size=\"smaller\"><i>{1}</i>\n<i>{2}:</i> {3}, <i>{4}:</i> {5}</span>",
itemName,
Util.Escape(STR_AUDIOTRACK),
Util.Escape(STR_VOLUME),
volTitle,
Util.Escape(STR_ARCHIVENO),
archiveNo);
break;
default:
throw new NotImplementedException("Search result view has not been implemented for this volumetype");
}
store.AppendValues(GetImage(item, db),
description,
item);
}
this.Model = store;
ColumnsAutosize();
}
public void Fill(VolumeItem[] items, VolumeDatabase db, bool clearVolumeCache)
{
if (clearVolumeCache)
volumeCache.Clear();
Fill(items, db);
}
internal void InsertVolumeItem(VolumeItem item)
{
InsertVolumeItems(new VolumeItem[] { item });
}
public void UpdateVolumeItem(VolumeItem item)
{
UpdateVolumeItems(new VolumeItem[] { item });
}
public void Write(VolumeItem item)
{
EnsureOpen();
buffer[buffCounter++] = item;
if (buffCounter >= buffer.Length) {
database.InsertVolumeItems(buffer);
buffCounter = 0;
}
}
// finds the specified item:
// - select owner volume
// - expand the treeview path to the item
// and select the item
public void FindItem(VolumeItem item)
{
if (item == null)
throw new ArgumentNullException("item");
// get path of volume ids to item
Stack<long> path = new Stack<long>();
VolumeItem tmp = item;
while (tmp.ItemID != 1) { // skip root item
path.Push(tmp.ItemID);
tmp = database.GetVolumeItem(tmp.VolumeID, tmp.ParentID);
}
// find and select volume of specified item
TreeModel model = tvVolumes.Model;
TreeIter iter;
long volumeID = item.VolumeID;
bool hasMoreIters = true;
model.GetIterFirst(out iter);
while (hasMoreIters) {
Volume vol = tvVolumes.GetVolume(iter);
if (vol.VolumeID == volumeID) {
// select owner volume
tvVolumes.Selection.SelectIter(iter);
tvVolumes.ScrollToCell(model.GetPath(iter), null, false, .0f, .0f);
if (path.Count > 0) {
// find and select specified item
tvItems.Model.GetIterFirst(out iter);
FindItemRecursive(iter, path);
} // else : specified item is the root item so select nothing
break;
}
hasMoreIters = model.IterNext(ref iter);
}
}
public void Categorize(VolumeItem[] items)
{
if (items == null)
throw new ArgumentNullException("items");
ListStore store = GetNewStore();
TreeIter iter = TreeIter.Zero;
this.allItems = items;
ClearCategories();
if (items.Length > 0) {
// categorize items
foreach(VolumeItem item in items) {
CategoryInfo ci;
if (MIME_MAPPING.TryGetValue(item.MimeType, out ci))
ci.items.Add(item);
}
// fill listore
iter = store.AppendValues( PIXBUF_ALL_ITEMS,
string.Format("{0} ({1})", S._("All items"), items.Length),
Category.AllItems);
for (int i = 0; i < CATEGORIES.Length; i++) {
CategoryInfo ci = CATEGORIES[i];
if (ci.items.Count > 0) {
store.AppendValues( ci.pixbuf,
string.Format("{0} ({1})", ci.caption, ci.items.Count),
(Category)i);
}
}
}
Model = store;
ColumnsAutosize();
// select "all items"
if (iter.Stamp != TreeIter.Zero.Stamp)
Selection.SelectIter(iter);
}
