You can now move entries around in the playlist.

PlaylistList.cpp

@@ -4,6 +4,8 @@
 #include "Playlist.h"
 
 #include <QPaintEvent>
+#include <QDrag>
+#include <QStyleOptionHeader>
 
 PlaylistItem::PlaylistItem (PlaylistList *pl, uint id)
 {
@@ -42,6 +44,8 @@ PlaylistList::PlaylistList (QWidget *parent) : QWidget (parent)
 	setAttribute (Qt::WA_NoBackground);
 	setFocusPolicy (Qt::StrongFocus);
 
+	setAcceptDrops (true);
+
 	connect (skin, SIGNAL (skinChanged (Skin *)),
 	         this, SLOT (setPixmaps(Skin *)));
 
@@ -52,6 +56,7 @@ PlaylistList::PlaylistList (QWidget *parent) : QWidget (parent)
 	m_itemmap = new QHash<uint, PlaylistItem *>;
 	m_offset = 0;
 	m_status = XMMS_PLAYBACK_STATUS_STOP;
+	m_bar = -2;
 
 	connect (xmmsh, SIGNAL(playlistList(QList<uint>)),
 	         this, SLOT(playlistList(QList<uint>)));
@@ -182,6 +187,25 @@ PlaylistList::mouseDoubleClickEvent (QMouseEvent *event)
 	}
 }
 
+QPixmap 
+PlaylistList::generatePixmap (int i)
+{
+	QStyleOptionHeader opt;
+	QString t (m_items->value(i)->text());
+
+	QPixmap p (m_fontmetrics->width(t), getFontH());
+
+	QPainter paint;
+	paint.begin (&p);
+	paint.setFont (*m_font);
+	paint.setPen (QPen (m_color_normal));
+	paint.fillRect (p.rect(), QBrush (m_color_normal_bg));
+	paint.drawText (p.rect(), t);
+	paint.end ();
+
+	return p;
+}
+
 void 
 PlaylistList::mousePressEvent (QMouseEvent *event)
 {
@@ -193,6 +217,11 @@ PlaylistList::mousePressEvent (QMouseEvent *event)
 		i = 0;
 	}
 
+	if (i > m_items->count ()) {
+		return;
+	}
+
+	if (event->button () == Qt::LeftButton) {
 		if (event->modifiers() & Qt::ShiftModifier) {
 			if (m_selected->count () > 0) {
 				int o = m_selected->last ();
@@ -221,11 +250,91 @@ PlaylistList::mousePressEvent (QMouseEvent *event)
 				m_selected->clear();
 				m_selected->append(i);
 			}
+
+			m_dragstart = event->pos ();
+		}
 	}
 
 	update ();
 }
 
+void
+PlaylistList::mouseMoveEvent (QMouseEvent *event)
+{
+
+	if (!(event->buttons() & Qt::LeftButton))
+		return;
+	if ((event->pos() - m_dragstart).manhattanLength() < QApplication::startDragDistance())
+		return;
+
+	if (m_selected->count() > 0) {
+		int i = m_selected->last ();
+
+		m_drag = new QDrag (this);
+		m_md = new QMimeData;
+		m_md->setText (QString::number (m_selected->last ()));
+		m_drag->setMimeData (m_md);
+
+		m_drag_id = m_items->value (i)->getID ();
+		m_pos = i;
+
+		QPixmap p = generatePixmap (i);
+
+		m_drag->setPixmap (p);
+		m_items->removeAt (i);
+		m_selected->clear ();
+
+		Qt::DropAction drop = m_drag->start ();
+	}
+
+}
+
+void
+PlaylistList::dragEnterEvent (QDragEnterEvent *event)
+{
+	event->accept ();
+}
+
+void
+PlaylistList::dragMoveEvent (QDragMoveEvent *event)
+{
+	int i = ((event->pos().y()+m_offset) / getFontH());
+	if (event->pos().y() < getFontH() / 2) {
+		m_bar = -1;
+	} else if (i >= m_items->count ()) {
+		m_bar = m_items->count ()-1;
+	} else {
+		m_bar = i;
+	}
+	update ();
+}
+
+void
+PlaylistList::dragLeaveEvent (QDragLeaveEvent *event)
+{
+	m_bar = -2;
+	update ();
+}
+
+void
+PlaylistList::dropEvent (QDropEvent *event)
+{
+	XMMSHandler *xmmsh = XMMSHandler::getInstance ();
+
+	if (m_bar == -2) {
+		m_items->insert (m_pos, m_itemmap->value (m_drag_id));
+	} else {
+		m_items->insert (m_bar + 1, m_itemmap->value (m_drag_id));
+		xmmsh->playlistMove (m_pos, m_bar + 1);
+	}
+	m_selected->append (m_drag_id);
+	m_bar = -2;
+	update ();
+
+
+
+}
+
 void
 PlaylistList::keyPressEvent (QKeyEvent *event)
 {
@@ -260,9 +369,9 @@ PlaylistList::keyPressEvent (QKeyEvent *event)
 		case Qt::Key_Backspace:
 		case Qt::Key_Delete:
 			{
+				/* Sort list and remove in reverse order */
 				qSort (*m_selected);
 				for (int i = m_selected->count (); i > 0; i --) {
-					qDebug ("%d", m_selected->value (i));
 					xmmsh->playlistRemove (m_selected->value (i));
 				}
 				m_selected->clear ();
@@ -325,6 +434,22 @@ PlaylistList::paintEvent (QPaintEvent *event)
 			paint.drawText (r, q);
 		}
 
+		if (m_bar == -1) {
+			paint.save ();
+			QPen pen (m_color_active);
+			pen.setWidth (2);
+			paint.setPen (pen);
+			paint.drawLine (2, 0, size().width()-2, 0);
+			paint.restore ();
+		} else if (m_bar == i) {
+			paint.save ();
+			QPen pen (m_color_active);
+			pen.setWidth (5);
+			paint.setPen (pen);
+			paint.drawLine (2, r.y()+getFontH(), size().width()-2, r.y()+getFontH());
+			paint.restore ();
+		}
+
 	}
 
 	if ((getFontH()*(i-sitem) - mod) < size().height()) {
@@ -380,6 +505,7 @@ PlaylistList::setPixmaps (Skin *skin)
 	m_color_active.setNamedColor (skin->getPLeditValue ("current"));
 	m_color_selected.setNamedColor (skin->getPLeditValue ("selectedbg"));
 	m_color_normal.setNamedColor (skin->getPLeditValue ("normal"));
+	m_color_normal_bg.setNamedColor (skin->getPLeditValue ("normalbg"));
 
 	update ();
 }

PlaylistList.h

@@ -5,6 +5,8 @@
 #include <QWidget>
 #include <QHash>
 
+#include <QDrag>
+
 class PlaylistItem;
 
 class PlaylistList : public QWidget {
@@ -29,10 +31,16 @@ class PlaylistList : public QWidget {
 	private:
 		void paintEvent (QPaintEvent *event);
 		void mousePressEvent (QMouseEvent *event);
+		void mouseMoveEvent (QMouseEvent *event);
 		void mouseDoubleClickEvent (QMouseEvent *event);
 		void keyPressEvent (QKeyEvent *event);
 
-		void mouseMoveEvent (QMouseEvent *event) {}
+		void dragMoveEvent (QDragMoveEvent *event);
+		void dragEnterEvent (QDragEnterEvent *event);
+		void dragLeaveEvent (QDragLeaveEvent *event);
+		void dropEvent (QDropEvent *event);
+
+		QPixmap generatePixmap (int);
 
 		QList<PlaylistItem*> *m_items;
 		QList<uint> *m_selected;
@@ -43,11 +51,19 @@ class PlaylistList : public QWidget {
 		QColor m_color_active;
 		QColor m_color_selected;
 		QColor m_color_normal;
+		QColor m_color_normal_bg;
 
 		int getFontH (void);
 		int m_offset;
 		int m_active;
+		int m_bar;
+		int m_drag_id;
+		int m_pos;
+		QPoint m_dragstart;
 		uint m_status;
+
+		QDrag *m_drag;
+		QMimeData *m_md;
 };
 
 class PlaylistItem {

XMMSHandler.h

@@ -29,6 +29,7 @@ class XMMSHandler : public QObject, public sigc::trackable {
 		void playlistAddURL (QString);
 		void playlistClear (void);
 		void playlistRemove (uint pos) { delete m_xmmsc->playlist_remove (pos); }
+		void playlistMove (uint pos, uint newpos) { delete m_xmmsc->playlist_move (pos, newpos); }
 
 		const XMMSClient *getXMMS () { return m_xmmsc; }