added qsui plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@5367 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 315 insertions, 0 deletions

diff --git a/src/plugins/Ui/qsui/keyboardmanager.cpp b/src/plugins/Ui/qsui/keyboardmanager.cpp
new file mode 100644
index 000000000..cc480c8c8
--- /dev/null
+++ b/src/plugins/Ui/qsui/keyboardmanager.cpp
@@ -0,0 +1,315 @@
+/***************************************************************************
+ *   Copyright (C) 2011-2014 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 <QAction>
+#include <QKeySequence>
+#include <qmmpui/playlistmanager.h>
+#include <qmmpui/playlistmodel.h>
+#include <qmmpui/mediaplayer.h>
+#include <qmmp/soundcore.h>
+#include "listwidget.h"
+#include "keyboardmanager.h"
+
+KeyboardManager::KeyboardManager(QObject *parent) :
+    QObject(parent)
+{
+    m_listWidget = 0;
+
+    addAction(Qt::Key_Up, SLOT(processUp()));
+    addAction(Qt::Key_Up + Qt::ShiftModifier, SLOT(processUp()));
+    addAction(Qt::Key_Up + Qt::AltModifier, SLOT(processUp()));
+    addAction(Qt::Key_Up + Qt::ControlModifier, SLOT(processUp()));
+
+    addAction(Qt::Key_Down, SLOT(processDown()));
+    addAction(Qt::Key_Down + Qt::ShiftModifier, SLOT(processDown()));
+    addAction(Qt::Key_Down + Qt::AltModifier, SLOT(processDown()));
+    addAction(Qt::Key_Down + Qt::ControlModifier, SLOT(processDown()));
+
+    addAction(Qt::Key_Return, SLOT(processEnter()));
+    addAction(Qt::Key_PageUp, SLOT(processPgUp()));
+    addAction(Qt::Key_PageUp + Qt::ShiftModifier, SLOT(processPgUp()));
+    addAction(Qt::Key_PageDown, SLOT(processPgDown()));
+    addAction(Qt::Key_PageDown + Qt::ShiftModifier, SLOT(processPgDown()));
+    addAction(Qt::Key_Home, SLOT(processHome()));
+    addAction(Qt::Key_Home + Qt::ShiftModifier, SLOT(processHome()));
+    addAction(Qt::Key_End, SLOT(processEnd()));
+    addAction(Qt::Key_End + Qt::ShiftModifier, SLOT(processEnd()));
+}
+
+QList<QAction *> KeyboardManager::actions()
+{
+    return m_actions;
+}
+
+void KeyboardManager::processUp()
+{
+    if(!m_listWidget)
+        return;
+
+    int keys = qobject_cast<QAction *>(sender())->shortcut()[0];
+
+    QList<int> rows = m_listWidget->model()->selectedIndexes();
+
+    if(rows.isEmpty())
+    {
+        m_listWidget->model()->setSelected(m_listWidget->firstVisibleIndex(), true);
+        m_listWidget->setAnchorIndex(m_listWidget->firstVisibleIndex());
+        return;
+    }
+
+    if (!(keys & Qt::ShiftModifier || keys & Qt::AltModifier || keys & Qt::ControlModifier))
+    {
+        m_listWidget->model()->clearSelection();
+        m_listWidget->setAnchorIndex(-1);
+    }
+
+    int first_visible = m_listWidget->firstVisibleIndex();
+    int last_visible = m_listWidget->visibleRows() + first_visible - 1;
+
+    int s = SELECT_NEXT;
+
+    if(rows.last() < first_visible)
+        s = SELECT_TOP;
+    else if(rows.first() > last_visible)
+        s = SELECT_BOTTOM;
+
+    if (keys & Qt::AltModifier)
+    {
+        if(rows.first() == 0)
+            return;
+        m_listWidget->model()->moveItems (rows.first(), rows.first() - 1);
+        m_listWidget->setAnchorIndex (rows.first() - 1);
+    }
+    else if(keys & Qt::ControlModifier)
+    {
+        m_listWidget->setAnchorIndex (qMax(m_listWidget->anchorIndex() - 1, 0));
+    }
+    else
+    {
+        if(s == SELECT_TOP)
+        {
+            m_listWidget->model()->setSelected (first_visible, true);
+            m_listWidget->setAnchorIndex(first_visible);
+        }
+        else if(s == SELECT_BOTTOM)
+        {
+            m_listWidget->model()->setSelected (last_visible, true);
+            m_listWidget->setAnchorIndex(last_visible);
+        }
+        else if(rows.first() == 0)
+        {
+            m_listWidget->model()->setSelected (rows.first(), true);
+            m_listWidget->setAnchorIndex(rows.first());
+        }
+        else if(rows.contains(m_listWidget->anchorIndex()) || m_listWidget->anchorIndex() < 0)
+        {
+            m_listWidget->model()->setSelected (rows.first() - 1, true);
+            m_listWidget->setAnchorIndex(rows.first() - 1);
+        }
+        else if(m_listWidget->anchorIndex() >= 0)
+        {
+            m_listWidget->model()->setSelected (m_listWidget->anchorIndex(), true);
+        }
+    }
+
+    if(m_listWidget->anchorIndex() < first_visible)
+    {
+        m_listWidget->scroll (m_listWidget->firstVisibleIndex() - 1);
+    }
+}
+
+void KeyboardManager::processDown()
+{
+    if(!m_listWidget)
+        return;
+
+    int keys = qobject_cast<QAction *>(sender())->shortcut()[0];
+
+    QList<int> rows = m_listWidget->model()->selectedIndexes();
+
+    if(rows.isEmpty())
+    {
+        m_listWidget->model()->setSelected(m_listWidget->firstVisibleIndex(), true);
+        m_listWidget->setAnchorIndex(m_listWidget->firstVisibleIndex());
+        return;
+    }
+
+    if (!(keys & Qt::ShiftModifier || keys & Qt::AltModifier || keys & Qt::ControlModifier))
+    {
+        m_listWidget->model()->clearSelection();
+        m_listWidget->setAnchorIndex(-1);
+    }
+
+    int first_visible = m_listWidget->firstVisibleIndex();
+    int last_visible = m_listWidget->visibleRows() + first_visible - 1;
+
+    int s = SELECT_NEXT;
+
+    if(rows.last() < first_visible)
+        s = SELECT_TOP;
+    else if(rows.first() > last_visible)
+        s = SELECT_BOTTOM;
+
+    if (keys & Qt::AltModifier)
+    {
+        if(rows.last() == m_listWidget->model()->count() - 1)
+            return;
+        m_listWidget->model()->moveItems (rows.last(), rows.last() + 1);
+        m_listWidget->setAnchorIndex (rows.last() + 1);
+    }
+    else if(keys & Qt::ControlModifier)
+    {
+        m_listWidget->setAnchorIndex (qMin(m_listWidget->anchorIndex() + 1,
+                                           m_listWidget->model()->count() - 1));
+    }
+    else
+    {
+        if(s == SELECT_TOP)
+        {
+            m_listWidget->model()->setSelected (first_visible, true);
+            m_listWidget->setAnchorIndex(first_visible);
+        }
+        else if(s == SELECT_BOTTOM)
+        {
+            m_listWidget->model()->setSelected (last_visible, true);
+            m_listWidget->setAnchorIndex(last_visible);
+        }
+        else if(rows.last() == m_listWidget->model()->count() - 1)
+        {
+            m_listWidget->model()->setSelected (rows.last(), true);
+            m_listWidget->setAnchorIndex(rows.last());
+        }
+        else if(rows.contains(m_listWidget->anchorIndex()) || m_listWidget->anchorIndex() < 0)
+        {
+            m_listWidget->model()->setSelected (rows.last() + 1, true);
+            m_listWidget->setAnchorIndex(rows.last() + 1);
+        }
+        else if(m_listWidget->anchorIndex() >= 0)
+        {
+            m_listWidget->model()->setSelected (m_listWidget->anchorIndex(), true);
+        }
+    }
+
+    if(m_listWidget->anchorIndex() > last_visible)
+    {
+        m_listWidget->scroll (m_listWidget->firstVisibleIndex() + 1);
+    }
+}
+
+void KeyboardManager::setListWidget(ListWidget *listWidget)
+{
+    m_listWidget = listWidget;
+}
+
+void KeyboardManager::processEnter()
+{
+    if(!m_listWidget)
+        return;
+    QList<int> rows = m_listWidget->model()->selectedIndexes();
+    if(rows.isEmpty())
+        return;
+    SoundCore::instance()->stop();
+    PlayListManager::instance()->activatePlayList(m_listWidget->model());
+    m_listWidget->model()->setCurrent (rows.first());
+    MediaPlayer::instance()->play();
+}
+
+void KeyboardManager::processPgUp()
+{
+    if(!m_listWidget)
+        return;
+
+    int first = m_listWidget->firstVisibleIndex();
+    int offset = qMax(m_listWidget->firstVisibleIndex() - m_listWidget->visibleRows(), 0);
+    m_listWidget->scroll (offset);
+
+    m_listWidget->model()->clearSelection();
+    if(m_listWidget->firstVisibleIndex() == first)
+        m_listWidget->setAnchorIndex(0);
+    else
+        m_listWidget->setAnchorIndex(m_listWidget->firstVisibleIndex() + m_listWidget->visibleRows()/2);
+    m_listWidget->model()->setSelected(m_listWidget->anchorIndex(), true);
+}
+
+void KeyboardManager::processPgDown()
+{
+    if(!m_listWidget)
+        return;
+
+    int first = m_listWidget->firstVisibleIndex();
+    int offset = qMin(first + m_listWidget->visibleRows(),
+                      m_listWidget->model()->count() - 1);
+    m_listWidget->scroll (offset);
+
+    m_listWidget->model()->clearSelection();
+    if(m_listWidget->firstVisibleIndex() == first)
+        m_listWidget->setAnchorIndex(m_listWidget->model()->count() - 1);
+    else
+        m_listWidget->setAnchorIndex(m_listWidget->firstVisibleIndex() + m_listWidget->visibleRows()/2);
+    m_listWidget->model()->setSelected(m_listWidget->anchorIndex(), true);
+}
+
+void KeyboardManager::processHome()
+{
+    if(!m_listWidget)
+        return;
+    int keys = qobject_cast<QAction *>(sender())->shortcut()[0];
+    m_listWidget->scroll (0);
+    if(keys & Qt::ShiftModifier)
+    {
+        m_listWidget->model()->setSelected (0, m_listWidget->anchorIndex(), true);
+    }
+    else if(m_listWidget->model()->count() != 0)
+    {
+        m_listWidget->model()->clearSelection();
+        m_listWidget->setAnchorIndex(0);
+        m_listWidget->model()->setSelected(0, true);
+    }
+}
+
+void KeyboardManager::processEnd()
+{
+    if(!m_listWidget)
+        return;
+
+    int keys = qobject_cast<QAction *>(sender())->shortcut()[0];
+    int scroll_to = m_listWidget->model()->count() - m_listWidget->visibleRows();
+    if(scroll_to >= 0)
+        m_listWidget->scroll(scroll_to);
+
+    if(keys & Qt::ShiftModifier)
+    {
+        m_listWidget->model()->setSelected (m_listWidget->anchorIndex(), m_listWidget->model()->count() - 1, true);
+    }
+    else if(m_listWidget->model()->count() > 0)
+    {
+        m_listWidget->model()->clearSelection();
+        m_listWidget->setAnchorIndex(m_listWidget->model()->count() - 1);
+        m_listWidget->model()->setSelected(m_listWidget->anchorIndex(), true);
+    }
+}
+
+void KeyboardManager::addAction(int keys, const char *method)
+{
+    QAction *action = new QAction(this);
+    action->setShortcut(QKeySequence(keys));
+    connect(action, SIGNAL(triggered()), method);
+    m_actions << action;
+}