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/*
* infopopup-qt.cc
* Copyright 2018 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 <libaudcore/audstrings.h>
#include <libaudcore/hook.h>
#include <libaudcore/i18n.h>
#include <libaudcore/playlist.h>
#include <libaudcore/tuple.h>
#include "libaudqt-internal.h"
#include "libaudqt.h"
#include <QBoxLayout>
#include <QGridLayout>
#include <QLabel>
#include <QPainter>
#include <QPointer>
namespace audqt
{
class InfoPopup : public PopupWidget
{
public:
InfoPopup(const String & filename, const Tuple & tuple);
private:
void add_field(int row, const char * field, const char * value);
void add_fields(const Tuple & tuple);
void art_ready(const char * filename);
void finish_loading();
void paintEvent(QPaintEvent *) override;
HookReceiver<InfoPopup, const char *> art_ready_hook{"art ready", this,
&InfoPopup::art_ready};
const String m_filename;
const QGradientStops m_stops;
QHBoxLayout m_hbox;
QGridLayout m_grid;
bool m_queued = false;
};
InfoPopup::InfoPopup(const String & filename, const Tuple & tuple)
: m_filename(filename),
m_stops(dark_bg_gradient(palette().color(QPalette::Window)))
{
setWindowFlags(Qt::ToolTip);
m_hbox.setMargin(sizes.TwoPt);
m_hbox.setSpacing(sizes.FourPt);
setLayout(&m_hbox);
m_grid.setMargin(0);
m_grid.setHorizontalSpacing(sizes.FourPt);
m_grid.setVerticalSpacing(0);
m_hbox.addLayout(&m_grid);
add_fields(tuple);
finish_loading();
}
void InfoPopup::add_fields(const Tuple & tuple)
{
String title = tuple.get_str(Tuple::Title);
String artist = tuple.get_str(Tuple::Artist);
String album = tuple.get_str(Tuple::Album);
String genre = tuple.get_str(Tuple::Genre);
int year = tuple.get_int(Tuple::Year);
int track = tuple.get_int(Tuple::Track);
int length = tuple.get_int(Tuple::Length);
int row = 0;
if (title)
add_field(row++, _("Title"), title);
if (artist)
add_field(row++, _("Artist"), artist);
if (album)
add_field(row++, _("Album"), album);
if (genre)
add_field(row++, _("Genre"), genre);
if (year > 0)
add_field(row++, _("Year"), int_to_str(year));
if (track > 0)
add_field(row++, _("Track"), int_to_str(track));
if (length > 0)
add_field(row++, _("Length"), str_format_time(length));
if (row > 0)
m_grid.setRowStretch(row - 1, 1);
}
void InfoPopup::add_field(int row, const char * field, const char * value)
{
auto header = new QLabel(this);
header->setTextFormat(Qt::RichText);
header->setText(
QString("<i><font color=\"#a0a0a0\">%1</font></i>").arg(field));
m_grid.addWidget(header, row, 0, Qt::AlignRight | Qt::AlignTop);
auto label = new QLabel(this);
header->setTextFormat(Qt::RichText);
auto html = QString(value).toHtmlEscaped();
label->setText(QString("<font color=\"#ffffff\">%1</font>").arg(html));
m_grid.addWidget(label, row, 1, Qt::AlignLeft | Qt::AlignTop);
}
void InfoPopup::art_ready(const char * filename)
{
if (m_queued && strcmp(filename, m_filename) == 0)
finish_loading();
}
void InfoPopup::finish_loading()
{
QImage image = art_request(m_filename, &m_queued);
if (!image.isNull())
{
auto label = new QLabel(this);
label->setPixmap(art_scale(image, sizes.OneInch, sizes.OneInch));
m_hbox.insertWidget(0, label);
}
if (!m_queued)
show();
}
void InfoPopup::paintEvent(QPaintEvent *)
{
QLinearGradient grad(0, 0, 0, height());
grad.setStops(m_stops);
QPainter p(this);
p.fillRect(rect(), grad);
}
static QPointer<InfoPopup> s_infopopup;
static void infopopup_show(const String & filename, const Tuple & tuple)
{
if (s_infopopup)
s_infopopup->deleteLater();
s_infopopup = new InfoPopup(filename, tuple);
}
EXPORT void infopopup_show(Playlist playlist, int entry)
{
String filename = playlist.entry_filename(entry);
Tuple tuple = playlist.entry_tuple(entry);
if (filename && tuple.valid())
infopopup_show(filename, tuple);
}
EXPORT void infopopup_show_current()
{
auto playlist = Playlist::playing_playlist();
if (playlist == Playlist())
playlist = Playlist::active_playlist();
int position = playlist.get_position();
if (position >= 0)
infopopup_show(playlist, position);
}
EXPORT void infopopup_hide()
{
/* This function can be called from an enter/leave event, and Qt does not
* like widgets being deleted from such events. This is debatably a bug in
* Qt, but deleteLater() is an effective workaround. */
if (s_infopopup)
s_infopopup->deleteLater();
}
void infopopup_hide_now()
{
/* On exit, we really do want to delete the widget immediately. */
delete s_infopopup;
}
} // namespace audqt
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