Implement creation, deletion and switching of playlists (Idlists)

src/dialogs/playlistchooser.cpp

@@ -0,0 +1,132 @@
+/**
+ *  This file is a part of Promoe, an XMMS2 client
+ *
+ *  Copyright (C) 2008 Thomas Frauendorfer
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+// FIXME: because somewhere something with the includes is wrons, this line
+// is needed
+#include "XMMSHandler.h"
+
+#include <QRegExp>
+#include <QStringList>
+#include <QList>
+#include <QListWidgetItem>
+
+#include "playlistchooser.h"
+
+#include "xcollection.h"
+
+PlaylistChooser::PlaylistChooser (QWidget *parent, XCollection *coll)
+                                  : QDialog (parent)
+{
+	setupUi (this);
+	setAttribute (Qt::WA_DeleteOnClose);
+
+	m_collection = coll;
+
+	// FIXME: implement creation of new Playlists
+//	playlistCreateButton->setEnabled (false);
+//	playlistRemoveButton->setEnabled (false);
+
+	// fill the List with Playlistnames.
+	// Sort out playlists that start with '_'
+	QRegExp regex = QRegExp ("^[^_]");
+	QStringList lists = coll->list ("Playlists").filter (regex);
+	playlistsListWidget->setSortingEnabled (true);
+	playlistsListWidget->addItems (lists);
+	connect (coll, SIGNAL (collectionModified (QString, QString, int, QString)),
+	         this, SLOT (handle_playlists_modified (QString, QString, int,
+			                                       QString)));
+
+}
+
+void
+PlaylistChooser::handle_playlists_modified (QString name, QString ns,
+                                            int type, QString newname)
+{
+	if (ns != "Playlists") {
+		return;
+	}
+
+	switch (type) {
+		case XMMS_COLLECTION_CHANGED_ADD:
+			if (!name.startsWith("_")) {
+				playlistsListWidget->addItem(name);
+			}
+			break;
+		case XMMS_COLLECTION_CHANGED_REMOVE: {
+				QList<QListWidgetItem *> list
+				   = playlistsListWidget->findItems (name, Qt::MatchExactly);
+				if (!list.empty ()) {
+					// we should only have one exatly matching String
+					QListWidgetItem* item = list.first ();
+					int idx = playlistsListWidget->row (item);
+					item = playlistsListWidget->takeItem (idx);
+					delete item;
+				}
+			}
+			break;
+		case XMMS_COLLECTION_CHANGED_RENAME: {
+				// remove the old entry
+				QList<QListWidgetItem *> list
+				   = playlistsListWidget->findItems (name, Qt::MatchExactly);
+				if (!list.empty ()) {
+					// we should only have one exatly matching String
+					QListWidgetItem* item = list.first ();
+					int idx = playlistsListWidget->row (item);
+					item = playlistsListWidget->takeItem (idx);
+					delete item;
+				}
+				// and add the new one
+				if (!newname.startsWith("_")) {
+					playlistsListWidget->addItem(newname);
+				}
+			}
+			break;
+
+		default:
+			break;
+	}
+}
+
+
+void
+PlaylistChooser::on_playlistCreateButton_clicked ()
+{
+	QString name = playlistTextEdit->text ();
+	// only create new playlist, if it doesn't already exist
+	if (m_collection->list ("Playlists").contains (name)) return;
+
+	m_collection->addIdlist (name);
+}
+
+void
+PlaylistChooser::on_playlistRemoveButton_clicked ()
+{
+	QList<QListWidgetItem *> list = playlistsListWidget->selectedItems ();
+	if (list.empty ()) return; // nothing to do
+
+	// TODO: if we change the selectionmodel to multiselection,
+	// change this tp remove more than one item
+	QListWidgetItem* item = list.first ();
+	QString name = item->text ();
+	m_collection->remove (name, "Playlists");
+}
+
+void
+PlaylistChooser::on_playlistsListWidget_itemDoubleClicked (QListWidgetItem* item)
+{
+	QString name = item->text ();
+	m_collection->setActivePlaylist (name);
+}