/***************************************************************************
* Copyright (C) 2006-2020 by Ilya Kotov *
* forkotov02@ya.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. *
***************************************************************************/
#ifndef LISTWIDGET_H
#define LISTWIDGET_H
#include <QWidget>
#include <QDir>
#include <QContextMenuEvent>
#include <QPen>
#include "listwidgetdrawer.h"
class QFont;
class QFontMetrics;
class QMenu;
class QAction;
class QTimer;
class PlayListModel;
class Skin;
class PlayListItem;
class QmmpUiSettings;
class PlayListHeader;
class HorizontalSlider;
namespace PlayListPopup{
class PopupWidget;
}
/**
@author Ilya Kotov <forkotov02@ya.ru>
*/
class ListWidget : public QWidget
{
Q_OBJECT
public:
ListWidget(QWidget *parent = nullptr);
~ListWidget();
/*!
* Returns count of currently visible rows.
*/
int visibleRows() const;
/*!
* Returns index of the first visible item.
*/
int firstVisibleIndex() const;
int anchorIndex() const;
void setAnchorIndex(int index);
QMenu *menu();
PlayListModel *model();
public slots:
void readSettings();
void updateList(int flags);
void setViewPosition(int sc);
void setModel(PlayListModel *selected, PlayListModel *previous = nullptr);
signals:
void doubleClicked();
void positionChanged(int, int); //current position, maximum value
protected:
void paintEvent(QPaintEvent *) override;
void mouseDoubleClickEvent(QMouseEvent *) override;
void mousePressEvent(QMouseEvent *) override;
void mouseMoveEvent(QMouseEvent *) override;
void mouseReleaseEvent(QMouseEvent *) override;
void resizeEvent(QResizeEvent *) override;
void wheelEvent(QWheelEvent *) override;
int indexAt(int)const;
void dragEnterEvent(QDragEnterEvent *event) override;
void dropEvent(QDropEvent *event) override;
void dragLeaveEvent(QDragLeaveEvent *) override;
void dragMoveEvent(QDragMoveEvent *event) override;
void contextMenuEvent (QContextMenuEvent * event) override;
bool event (QEvent *e) override;
private slots:
void updateSkin();
void autoscroll();
void updateRepeatIndicator();
void scrollTo(int index);
private:
enum ScrollDirection
{
NONE = 0,TOP,DOWN
};
void recenterTo(int index);
/*!
* Returns string with queue number or(and) repeate flag for the item number \b i.
*/
const QString getExtraString(int i);
bool updateRowCount();
void restoreFirstVisible();
bool m_update;
int m_pressed_index;
QMenu *m_menu;
PlayListModel *m_model;
int m_row_count, m_first, m_count; //visible rows, first visible index, total item count
PlayListItem *m_firstItem; //first visible item
Skin *m_skin;
int m_anchor_index;
/*!
* Scroll direction that is performing in current moment.
*/
ScrollDirection m_scroll_direction;
int m_prev_y;
bool m_select_on_release;
bool m_show_protocol;
int m_drop_index;
QList<ListWidgetRow *> m_rows;
QmmpUiSettings *m_ui_settings;
PlayListPopup::PopupWidget *m_popupWidget;
QTimer *m_timer;
ListWidgetDrawer m_drawer;
PlayListHeader *m_header;
HorizontalSlider *m_hslider;
};
#endif
