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/*
* queue-manager.cc
* Copyright 2014 Ariadne Conill, John Lindgren
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions, and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions, and the following disclaimer in the documentation
* provided with the distribution.
*
* This software is provided "as is" and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising from
* the use of this software.
*/
#include "libaudqt.h"
#include <QAbstractListModel>
#include <QDialog>
#include <QDialogButtonBox>
#include <QHeaderView>
#include <QItemSelectionModel>
#include <QPointer>
#include <QPushButton>
#include <QTreeView>
#include <QVBoxLayout>
#include <libaudcore/audstrings.h>
#include <libaudcore/hook.h>
#include <libaudcore/i18n.h>
#include <libaudcore/playlist.h>
/*
* TODO:
* - shifting of selection entries
*/
namespace audqt
{
class QueueManagerModel : public QAbstractListModel
{
public:
void update(QItemSelectionModel * sel);
void selectionChanged(const QItemSelection & selected,
const QItemSelection & deselected);
protected:
int rowCount(const QModelIndex & parent) const
{
return parent.isValid() ? 0 : m_rows;
}
int columnCount(const QModelIndex & parent) const { return 2; }
QVariant data(const QModelIndex & index, int role) const;
private:
int m_rows = 0;
bool m_in_update = false;
};
QVariant QueueManagerModel::data(const QModelIndex & index, int role) const
{
if (role == Qt::DisplayRole)
{
auto list = Playlist::active_playlist();
int entry = list.queue_get_entry(index.row());
if (index.column() == 0)
return entry + 1;
else
{
Tuple tuple = list.entry_tuple(entry, Playlist::NoWait);
return QString((const char *)tuple.get_str(Tuple::FormattedTitle));
}
}
else if (role == Qt::TextAlignmentRole && index.column() == 0)
return Qt::AlignRight;
return QVariant();
}
void QueueManagerModel::update(QItemSelectionModel * sel)
{
auto list = Playlist::active_playlist();
int rows = list.n_queued();
int keep = aud::min(rows, m_rows);
m_in_update = true;
if (rows < m_rows)
{
beginRemoveRows(QModelIndex(), rows, m_rows - 1);
m_rows = rows;
endRemoveRows();
}
else if (rows > m_rows)
{
beginInsertRows(QModelIndex(), m_rows, rows - 1);
m_rows = rows;
endInsertRows();
}
if (keep > 0)
{
auto topLeft = createIndex(0, 0);
auto bottomRight = createIndex(keep - 1, 0);
emit dataChanged(topLeft, bottomRight);
}
for (int i = 0; i < rows; i++)
{
if (list.entry_selected(list.queue_get_entry(i)))
sel->select(createIndex(i, 0), sel->Select | sel->Rows);
else
sel->select(createIndex(i, 0), sel->Deselect | sel->Rows);
}
m_in_update = false;
}
void QueueManagerModel::selectionChanged(const QItemSelection & selected,
const QItemSelection & deselected)
{
if (m_in_update)
return;
auto list = Playlist::active_playlist();
for (auto & index : selected.indexes())
list.select_entry(list.queue_get_entry(index.row()), true);
for (auto & index : deselected.indexes())
list.select_entry(list.queue_get_entry(index.row()), false);
}
class QueueManagerDialog : public QDialog
{
public:
QueueManagerDialog(QWidget * parent = nullptr);
private:
QTreeView m_treeview;
QDialogButtonBox m_buttonbox;
QPushButton m_btn_unqueue;
QPushButton m_btn_close;
QueueManagerModel m_model;
void removeSelected();
void update() { m_model.update(m_treeview.selectionModel()); }
const HookReceiver<QueueManagerDialog> update_hook{
"playlist update", this, &QueueManagerDialog::update},
activate_hook{"playlist activate", this, &QueueManagerDialog::update};
};
QueueManagerDialog::QueueManagerDialog(QWidget * parent) : QDialog(parent)
{
setWindowTitle(_("Queue Manager"));
setContentsMargins(margins.TwoPt);
m_btn_unqueue.setText(translate_str(N_("_Unqueue")));
m_btn_close.setText(translate_str(N_("_Close")));
connect(&m_btn_close, &QAbstractButton::clicked, this, &QWidget::hide);
connect(&m_btn_unqueue, &QAbstractButton::clicked, this,
&QueueManagerDialog::removeSelected);
m_buttonbox.addButton(&m_btn_close, QDialogButtonBox::AcceptRole);
m_buttonbox.addButton(&m_btn_unqueue, QDialogButtonBox::AcceptRole);
auto layout = make_vbox(this);
layout->addWidget(&m_treeview);
layout->addWidget(&m_buttonbox);
m_treeview.setAllColumnsShowFocus(true);
m_treeview.setIndentation(0);
m_treeview.setModel(&m_model);
m_treeview.setSelectionMode(QAbstractItemView::ExtendedSelection);
m_treeview.setHeaderHidden(true);
update();
connect(m_treeview.selectionModel(), &QItemSelectionModel::selectionChanged,
&m_model, &QueueManagerModel::selectionChanged);
resize(4 * sizes.OneInch, 3 * sizes.OneInch);
}
void QueueManagerDialog::removeSelected()
{
auto list = Playlist::active_playlist();
int count = list.n_queued();
for (int i = 0; i < count;)
{
int entry = list.queue_get_entry(i);
if (list.entry_selected(entry))
{
list.queue_remove(i);
list.select_entry(entry, false);
count--;
}
else
i++;
}
}
static QPointer<QueueManagerDialog> s_queuemgr;
EXPORT void queue_manager_show()
{
if (!s_queuemgr)
{
s_queuemgr = new QueueManagerDialog;
s_queuemgr->setAttribute(Qt::WA_DeleteOnClose);
}
window_bring_to_front(s_queuemgr);
}
EXPORT void queue_manager_hide() { delete s_queuemgr; }
} // namespace audqt
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