Implement previous and next

1 files changed, 44 insertions, 6 deletions

diff --git a/playerwidget.cpp b/playerwidget.cpp
index 13cd2f5..bfe3815 100644
--- a/playerwidget.cpp
+++ b/playerwidget.cpp
@@ -154,11 +154,15 @@ void PlayerWidget::createActions(){
     pauseA->setCheckable(true);
     playAG->addAction(pauseA);
     connect(pauseA, SIGNAL(triggered()), mPlayer, SLOT(pause()));
-    QAction *stopA = new QAction(QIcon(":/stop.png"), tr("Stop"), this);
-    stopA->setCheckable(true);
-    playAG->addAction(stopA);
-    stopA->trigger();
-    connect(stopA, SIGNAL(triggered()), mPlayer, SLOT(stop()));
+    mStopA = new QAction(QIcon(":/stop.png"), tr("Stop"), this);
+    mStopA->setCheckable(true);
+    playAG->addAction(mStopA);
+    mStopA->trigger();
+    connect(mStopA, SIGNAL(triggered()), mPlayer, SLOT(stop()));
+    QAction *previousA = new QAction(QIcon(":/previous.png"), tr("Previous"), this);
+    connect(previousA, SIGNAL(triggered()), this, SLOT(previous()));
+    QAction *nextA = new QAction(QIcon(":/next.png"), tr("Next"), this);
+    connect(nextA, SIGNAL(triggered()), this, SLOT(next()));
     QAction *addToPlayListA = new QAction(QIcon(":/belly_right.png"), tr("Add to playlist"), this);
     connect(addToPlayListA, SIGNAL(triggered()), this, SLOT(addToPlayList()));
     QAction *removeFromPlayListA = new QAction(QIcon(":/belly_left.png"), tr("Remove from playlist"), this);
@@ -185,7 +189,10 @@ void PlayerWidget::createActions(){
     mToolBar->addWidget(spacer1);
     mToolBar->addAction(mPlayA);
     mToolBar->addAction(pauseA);
-    mToolBar->addAction(stopA);
+    mToolBar->addAction(mStopA);
+    mToolBar->addSeparator();
+    mToolBar->addAction(previousA);
+    mToolBar->addAction(nextA);
     mToolBar->addSeparator();
     mToolBar->addAction(addToPlayListA);
     mToolBar->addAction(removeFromPlayListA);
@@ -466,3 +473,34 @@ void PlayerWidget::volumeChanged(int volume){
 void PlayerWidget::mute(bool triggered){
     mPlayer->setMuted(triggered);
 }
+
+void PlayerWidget::next(){
+    advance(1);
+}
+
+void PlayerWidget::previous(){
+    advance(-1);
+}
+
+void PlayerWidget::advance(int numSongs){
+    QModelIndexList sel = mPlayListView->selectionModel()->selectedRows();
+    if(sel.isEmpty()){
+        QStandardItem *root = mPlayListModel->invisibleRootItem();
+        if(root->rowCount() > 0){
+            QModelIndex first = mPlayListModel->index(0, 0);
+            mPlayListView->selectionModel()->setCurrentIndex(first, QItemSelectionModel::ClearAndSelect);
+            QString fp = first.data(FullPathRole).toString();
+            play(fp);
+            return;
+        }
+        return;
+    }
+    QModelIndex cur = sel.first();
+    QModelIndex nextIdx = mPlayListModel->index(cur.row() + numSongs, 0);
+    if(nextIdx.isValid()){
+        mPlayListView->selectionModel()->setCurrentIndex(nextIdx, QItemSelectionModel::ClearAndSelect);
+        cur = nextIdx;
+        QString fp = cur.data(FullPathRole).toString();
+        play(fp);
+    }
+}