moved playlist model to libqmmpui

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@679 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 138 insertions, 0 deletions

diff --git a/src/qmmpui/playstate.cpp b/src/qmmpui/playstate.cpp
new file mode 100644
index 000000000..373619574
--- /dev/null
+++ b/src/qmmpui/playstate.cpp
@@ -0,0 +1,138 @@
+/***************************************************************************
+ *   Copyright (C) 2006 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.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <playstate.h>
+
+ShufflePlayState::ShufflePlayState(PlayListModel * model) : PlayState(model)
+{
+    prepare();
+}
+
+bool ShufflePlayState::next()
+{
+    int itm_count = m_model->items().count();
+
+    if (itm_count > 0)
+    {
+        if (m_shuffled_current >= m_shuffled_indexes.count() -1 )
+        {
+            if (!m_model->isRepeatableList())
+                return FALSE;
+            else
+                prepare();
+        }
+
+        if (m_shuffled_current < m_shuffled_indexes.count() - 1)m_shuffled_current++;
+
+        return m_model->setCurrent(m_shuffled_indexes.at(m_shuffled_current));
+    }
+    return FALSE;
+}
+
+bool ShufflePlayState::previous()
+{
+    int itm_count = m_model->items().count();
+
+    if (itm_count > 0)
+    {
+        if (m_shuffled_current <= 0)
+        {
+            if (!m_model->isRepeatableList())
+                return FALSE;
+            else
+            {
+                prepare();
+                m_shuffled_current = m_shuffled_indexes.count() - 1;
+            }
+        }
+
+        if (itm_count > 1) m_shuffled_current --;
+
+        m_model->setCurrent(m_shuffled_indexes.at(m_shuffled_current));
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void ShufflePlayState::prepare()
+{
+    resetState();
+    for (int i = 0;i < m_model->items().count();i++)
+    {
+        if (i != m_model->currentRow())
+            m_shuffled_indexes << i;
+    }
+
+    for (int i = 0;i < m_shuffled_indexes.count();i++)
+        m_shuffled_indexes.swap(qrand()%m_shuffled_indexes.size(),qrand()%m_shuffled_indexes.size());
+
+    m_shuffled_indexes.prepend(m_model->currentRow());
+}
+
+void ShufflePlayState::resetState()
+{
+    m_shuffled_indexes.clear();
+    m_shuffled_current = 0;
+}
+
+
+
+
+
+NormalPlayState::NormalPlayState(PlayListModel * model) : PlayState(model)
+{}
+
+
+bool NormalPlayState::next()
+{
+    int itm_count = m_model->items().count();
+
+    if (itm_count > 0)
+    {
+        if ( m_model->currentRow() == itm_count - 1)
+        {
+            if (m_model->isRepeatableList())
+                return m_model->setCurrent(0);
+            else
+                return FALSE;
+        }
+        return m_model->setCurrent(m_model->currentRow() + 1);
+    }
+    else
+        return FALSE;
+}
+
+bool NormalPlayState::previous()
+{
+    int itm_count = m_model->items().count();
+
+    if (itm_count > 0)
+    {
+        if ( m_model->currentRow() < 1 && !m_model->isRepeatableList())
+            return FALSE;
+        else if (m_model->setCurrent(m_model->currentRow() - 1))
+            return TRUE;
+        else if (m_model->isRepeatableList())
+            return m_model->setCurrent(m_model->items().count() - 1);
+    }
+
+    return FALSE;
+}
+