added some api functions

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@3670 90c681e8-e032-0410-971d-27865f9a5e38

7 files changed, 37 insertions, 2 deletions

diff --git a/src/qmmpui/groupedcontainer.cpp b/src/qmmpui/groupedcontainer.cpp
index 52f86a301..6e6b2d6c0 100644
--- a/src/qmmpui/groupedcontainer.cpp
+++ b/src/qmmpui/groupedcontainer.cpp
@@ -142,6 +142,14 @@ PlayListTrack *GroupedContainer::track(int index) const
     return dynamic_cast<PlayListTrack *> (i);
 }
 
+PlayListGroup *GroupedContainer::group(int index) const
+{
+    PlayListItem *i = item(index);
+    if(i && i->isGroup())
+        return dynamic_cast<PlayListGroup *> (i);
+    return 0;
+}
+
 bool GroupedContainer::contains(PlayListItem *item) const
 {
     return m_items.contains(item);
diff --git a/src/qmmpui/groupedcontainer_p.h b/src/qmmpui/groupedcontainer_p.h
index 89f42a705..86357de8c 100644
--- a/src/qmmpui/groupedcontainer_p.h
+++ b/src/qmmpui/groupedcontainer_p.h
@@ -47,6 +47,7 @@ public:
     int indexOf(PlayListItem *item) const;
     PlayListItem *item(int index) const;
     PlayListTrack *track(int index) const;
+    PlayListGroup *group(int index) const;
     bool contains(PlayListItem *item) const;
     int numberOfTrack(int index) const;
     void removeTrack(int index);
diff --git a/src/qmmpui/normalcontainer.cpp b/src/qmmpui/normalcontainer.cpp
index 1be508521..3cd8fa07b 100644
--- a/src/qmmpui/normalcontainer.cpp
+++ b/src/qmmpui/normalcontainer.cpp
@@ -95,7 +95,7 @@ PlayListItem *NormalContainer::item(int index) const
 {
     if(index >= count() || index < 0)
     {
-        qWarning("NormalContainer index is out of range");
+        qWarning("NormalContainer: index is out of range");
         return 0;
     }
     return m_items.at(index);
@@ -107,6 +107,12 @@ PlayListTrack *NormalContainer::track(int index) const
     return dynamic_cast<PlayListTrack *> (i);
 }
 
+PlayListGroup *NormalContainer::group(int index) const
+{
+    Q_UNUSED(index);
+    return 0;
+}
+
 bool NormalContainer::contains(PlayListItem *item) const
 {
     return m_items.contains(item);
diff --git a/src/qmmpui/normalcontainer_p.h b/src/qmmpui/normalcontainer_p.h
index c0117c3e5..f64787cb5 100644
--- a/src/qmmpui/normalcontainer_p.h
+++ b/src/qmmpui/normalcontainer_p.h
@@ -47,6 +47,7 @@ public:
     int indexOf(PlayListItem *item) const;
     PlayListItem *item(int index) const;
     PlayListTrack *track(int index) const;
+    PlayListGroup *group(int index) const;
     bool contains(PlayListItem *item) const;
     int numberOfTrack(int index) const;
     void removeTrack(int index);
diff --git a/src/qmmpui/playlistcontainer_p.h b/src/qmmpui/playlistcontainer_p.h
index 00bebb680..9710585aa 100644
--- a/src/qmmpui/playlistcontainer_p.h
+++ b/src/qmmpui/playlistcontainer_p.h
@@ -52,6 +52,7 @@ public:
     virtual int indexOf(PlayListItem *item) const = 0;
     virtual PlayListItem *item(int index) const = 0;
     virtual PlayListTrack *track(int index) const = 0;
+    virtual PlayListGroup *group(int index) const = 0;
     virtual bool contains(PlayListItem *item) const = 0;
     virtual int numberOfTrack(int index) const = 0;
     virtual void removeTrack(int index) = 0;
diff --git a/src/qmmpui/playlistmodel.cpp b/src/qmmpui/playlistmodel.cpp
index 828c914de..2646b71ed 100644
--- a/src/qmmpui/playlistmodel.cpp
+++ b/src/qmmpui/playlistmodel.cpp
@@ -179,6 +179,11 @@ PlayListTrack* PlayListModel::track(int index) const
     return m_container->track(index);
 }
 
+PlayListGroup* PlayListModel::group(int index) const
+{
+    return m_container->group(index);
+}
+
 int PlayListModel::currentIndex() const
 {
     return m_current;
@@ -190,7 +195,10 @@ bool PlayListModel::setCurrent(int index)
         return false;
     PlayListItem *item = m_container->item(index);
     if(item->isGroup())
-        return false;
+    {
+        index++;
+        item = m_container->item(index);
+    }
     m_current = index;
     m_current_track = dynamic_cast<PlayListTrack*> (item);
     emit currentChanged();
@@ -212,6 +220,13 @@ bool PlayListModel::isTrack(int index) const
     return !m_container->item(index)->isGroup();
 }
 
+bool PlayListModel::isGroup(int index) const
+{
+    if (index > count()-1 || index < 0)
+        return false;
+    return !m_container->item(index)->isGroup();
+}
+
 bool PlayListModel::next()
 {
     if(m_stop_track == currentTrack())
diff --git a/src/qmmpui/playlistmodel.h b/src/qmmpui/playlistmodel.h
index 2bd81eea4..769b55dc8 100644
--- a/src/qmmpui/playlistmodel.h
+++ b/src/qmmpui/playlistmodel.h
@@ -128,6 +128,7 @@ public:
      */
     PlayListItem* item(int index) const;
     PlayListTrack* track(int index) const;
+    PlayListGroup* group(int index) const;
     /*!
      * Returns index of the current item.
      */
@@ -147,6 +148,8 @@ public:
 
     bool isTrack(int index) const;
 
+    bool isGroup(int index) const;
+
     /*!
      * Returns \b true if item with \b index is selected, otherwise returns \b false
      */