added normal (w/o groups) playlist container

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@3597 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 282 insertions, 0 deletions

diff --git a/src/qmmpui/groupedcontainer.cpp b/src/qmmpui/groupedcontainer.cpp
new file mode 100644
index 000000000..6c395042f
--- /dev/null
+++ b/src/qmmpui/groupedcontainer.cpp
@@ -0,0 +1,282 @@
+/***************************************************************************
+ *   Copyright (C) 2013 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   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.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+ ***************************************************************************/
+
+#include "groupedcontainer_p.h"
+
+GroupedContainer::GroupedContainer()
+{
+}
+
+GroupedContainer::~GroupedContainer()
+{
+}
+
+void GroupedContainer::addGroup(PlayListGroup *group)
+{
+    m_groups.append(group);
+    m_items.append(group);
+    foreach (PlayListTrack *item, *group->tracks())
+    {
+        m_items.append(item);
+    }
+    updateIndex();
+}
+
+void GroupedContainer::addTrack(PlayListTrack *track)
+{
+    if(!m_groups.isEmpty() && track->groupName() == m_groups.last()->formattedTitle())
+    {
+        PlayListGroup *group = m_groups.last();
+        group->addTrack(track);
+        m_items.insert(group->lastIndex + 1, track);
+        updateIndex();
+        return;
+    }
+    foreach(PlayListGroup *group, m_groups)
+    {
+        if(track->groupName() == group->formattedTitle())
+        {
+            group->addTrack(track);
+            m_items.insert(group->lastIndex + 1, track);
+            updateIndex();
+            return;
+        }
+    }
+
+    PlayListGroup *group = new PlayListGroup(track->groupName());
+    group->addTrack(track);
+    addGroup(group);
+}
+
+QList<PlayListGroup *> GroupedContainer::groups()
+{
+    return m_groups;
+}
+
+QList<PlayListItem *> GroupedContainer::items() const
+{
+    return m_items;
+}
+
+int GroupedContainer::count() const
+{
+    return m_items.count();
+}
+
+int GroupedContainer::trackCount() const
+{
+    return m_items.count() - m_groups.count();
+}
+
+QList<PlayListItem *> GroupedContainer::mid(int pos, int count) const
+{
+    return m_items.mid(pos, count);
+}
+
+bool GroupedContainer::isEmpty() const
+{
+    return m_items.isEmpty();
+}
+
+bool GroupedContainer::isSelected(int index) const
+{
+    if (0 <= index && index < m_items.count())
+        return m_items.at(index)->isSelected();
+    return false;
+}
+
+void GroupedContainer::setSelected(int index, bool selected)
+{
+    if (0 <= index && index < m_items.count())// && !m_items.at(index)->isGroup())
+        m_items.at(index)->setSelected(selected);
+}
+
+void GroupedContainer::clearSelection()
+{
+    foreach (PlayListItem *item, m_items)
+    {
+        item->setSelected(false);
+    }
+}
+
+int GroupedContainer::indexOf(PlayListItem *item) const
+{
+    return m_items.indexOf(item);
+}
+
+PlayListItem *GroupedContainer::item(int index) const
+{
+    if(index >= count() || index < 0)
+    {
+        qWarning("PlayListItem: index is out of range");
+        return 0;
+    }
+    return m_items.at(index);
+}
+
+PlayListTrack *GroupedContainer::track(int index) const
+{
+    PlayListItem *i = item(index);
+    if(!i || i->isGroup())
+        return 0;
+    return dynamic_cast<PlayListTrack *> (i);
+}
+
+bool GroupedContainer::contains(PlayListItem *item) const
+{
+    return m_items.contains(item);
+}
+
+int GroupedContainer::numberOfTrack(int index) const
+{
+    for(int i = 0; i < m_groups.count(); ++i)
+    {
+        if(index >= m_groups[i]->firstIndex && index <= m_groups[i]->lastIndex)
+        {
+            return index - (i+1);
+        }
+    }
+    return -1;
+}
+
+void GroupedContainer::removeTrack(int index)
+{
+    PlayListTrack *t = track(index);
+    if(t)
+    {
+        removeTrack(t);
+        if (t->flag() == PlayListTrack::FREE)
+        {
+            delete t;
+        }
+        else if (t->flag() == PlayListTrack::EDITING)
+        {
+            t->setFlag(PlayListTrack::SCHEDULED_FOR_DELETION);
+        }
+    }
+}
+
+void GroupedContainer::removeTrack(PlayListTrack *track)
+{
+    m_items.removeAll(track);
+
+    foreach(PlayListGroup *group, m_groups)
+    {
+        if(group->contains(track))
+        {
+            group->remove(track);
+            if(group->isEmpty())
+            {
+                m_groups.removeAll(group);
+                m_items.removeAll(group);
+                delete group;
+            }
+            updateIndex();
+            return;
+        }
+    }
+}
+
+void GroupedContainer::removeTracks(QList<PlayListTrack *> tracks)
+{
+    foreach(PlayListTrack *t, tracks)
+        removeTrack(t);
+}
+
+bool GroupedContainer::move(QList<int> indexes, int from, int to)
+{
+    PlayListGroup *group = 0;
+
+    foreach (PlayListGroup *g, m_groups)
+    {
+        if(from > g->firstIndex && from <= g->lastIndex &&
+                to > g->firstIndex && to <= g->lastIndex)
+        {
+            group = g;
+            break;
+        }
+    }
+
+    if(!group)
+        return false;
+
+    foreach (int i, indexes)
+    {
+        if(i <= group->firstIndex || i > group->lastIndex)
+            return false;
+    }
+
+    if (from > to)
+    {
+        foreach(int i, indexes)
+        {
+            if (i + to - from < 0)
+                break;
+            else
+            {
+                m_items.move(i,i + to - from);
+                group->move(i - group->firstIndex - 1,
+                            i + to - from  - group->firstIndex - 1);
+            }
+        }
+    }
+    else
+    {
+        for (int i = indexes.count() - 1; i >= 0; i--)
+        {
+            if (indexes[i] + to - from >= m_items.count())
+                break;
+            else
+            {
+                m_items.move(indexes[i], indexes[i] + to - from);
+                group->move(indexes[i] - group->firstIndex - 1,
+                            indexes[i] + to - from - group->firstIndex - 1);
+            }
+        }
+    }
+    return true;
+}
+
+void GroupedContainer::clear()
+{
+    while(!m_groups.isEmpty())
+    {
+        delete m_groups.takeFirst();
+    }
+    m_items.clear();
+}
+
+void GroupedContainer::updateIndex()
+{
+    for(int i = 0; i < m_groups.count(); ++i)
+    {
+        if(i == 0)
+        {
+            m_groups[i]->firstIndex = 0;
+            m_groups[i]->lastIndex = m_groups[i]->count();
+        }
+        else
+        {
+            m_groups[i]->firstIndex = m_groups[i-1]->lastIndex + 1;
+            m_groups[i]->lastIndex = m_groups[i]->firstIndex + m_groups[i]->count();
+        }
+    }
+}
+