388 lines
12 KiB
C++
388 lines
12 KiB
C++
/* This file is part of Clementine.
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "playlistview.h"
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#include "playlist.h"
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#include "playlistheader.h"
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#include "trackslider.h"
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#include <QPainter>
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#include <QHeaderView>
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#include <QSettings>
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#include <QtDebug>
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#include <QTimer>
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#include <QKeyEvent>
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#include <QMenu>
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#include <QScrollBar>
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#include <QDateTime>
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#include <math.h>
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const char* PlaylistView::kSettingsGroup = "Playlist";
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const int PlaylistView::kGlowIntensitySteps = 32;
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PlaylistDelegateBase::PlaylistDelegateBase(QTreeView* view)
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: QStyledItemDelegate(view),
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view_(view)
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{
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}
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QString PlaylistDelegateBase::displayText(const QVariant& value, const QLocale&) const {
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switch (value.type()) {
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case QVariant::Int: {
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int v = value.toInt();
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if (v <= 0)
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return QString::null;
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return QString::number(v);
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}
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case QVariant::Double: {
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double v = value.toDouble();
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if (v <= 0)
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return QString::null;
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return QString::number(v);
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}
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default:
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return value.toString();
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}
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}
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void PlaylistDelegateBase::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
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QStyledItemDelegate::paint(painter, Adjusted(option, index), index);
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if (view_->header()->logicalIndexAt(QPoint(0,0)) == index.column()) {
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if (index.data(Playlist::Role_StopAfter).toBool()) {
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QColor color(Qt::white);
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if (!index.data(Playlist::Role_IsCurrent).toBool() &&
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!(option.state & QStyle::State_Selected)) {
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color = option.palette.color(QPalette::Highlight);
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}
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const int kStopSize = 10;
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const int kStopBorder = 2;
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QRect stop_rect(option.rect);
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stop_rect.setLeft(stop_rect.right() - kStopSize - kStopBorder);
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stop_rect.setWidth(kStopSize);
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stop_rect.moveTop(stop_rect.top() + (stop_rect.height() - kStopSize) / 2);
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stop_rect.setHeight(kStopSize);
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painter->setOpacity(0.65);
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painter->fillRect(stop_rect, color);
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painter->setOpacity(1.0);
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}
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}
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}
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QStyleOptionViewItemV4 PlaylistDelegateBase::Adjusted(const QStyleOptionViewItem& option, const QModelIndex& index) const {
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if (view_->header()->logicalIndexAt(QPoint(0,0)) != index.column())
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return option;
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QStyleOptionViewItemV4 ret(option);
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if (index.data(Playlist::Role_IsCurrent).toBool()) {
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// Move the text in a bit on the first column for the song that's currently
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// playing
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ret.rect.setLeft(ret.rect.left() + 20);
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}
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return ret;
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}
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QString LengthItemDelegate::displayText(const QVariant& value, const QLocale&) const {
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bool ok = false;
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int seconds = value.toInt(&ok);
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if (ok && seconds > 0)
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return TrackSlider::PrettyTime(seconds);
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return QString::null;
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}
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QString SizeItemDelegate::displayText(const QVariant& value, const QLocale&) const {
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bool ok = false;
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int bytes = value.toInt(&ok);
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QString ret;
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if (ok && bytes > 0) {
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if (bytes <= 1024)
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ret.sprintf("%d bytes", bytes);
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else if (bytes <= 1024*1024)
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ret.sprintf("%.1f KB", float(bytes) / 1024);
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else if (bytes <= 1024*1024*1024)
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ret.sprintf("%.1f MB", float(bytes) / (1024*1024));
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else
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ret.sprintf("%.1f GB", float(bytes) / (1024*1024*1024));
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}
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return ret;
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}
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QString DateItemDelegate::displayText(const QVariant &value, const QLocale &locale) const {
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bool ok = false;
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int time = value.toInt(&ok);
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if (!ok || time == -1)
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return QString::null;
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return QDateTime::fromTime_t(time).toString(
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QLocale::system().dateTimeFormat(QLocale::ShortFormat));
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}
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QString FileTypeItemDelegate::displayText(const QVariant &value, const QLocale &locale) const {
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bool ok = false;
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Song::FileType type = Song::FileType(value.toInt(&ok));
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if (!ok)
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return tr("Unknown");
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switch (type) {
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case Song::Type_Asf: return tr("ASF");
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case Song::Type_Flac: return tr("FLAC");
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case Song::Type_Mp4: return tr("MP4");
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case Song::Type_Mpc: return tr("MPC");
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case Song::Type_Mpeg: return tr("MP3"); // Not technically correct
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case Song::Type_OggFlac: return tr("Ogg FLAC");
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case Song::Type_OggSpeex: return tr("Ogg Speex");
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case Song::Type_OggVorbis: return tr("Ogg Vorbis");
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case Song::Type_Aiff: return tr("AIFF");
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case Song::Type_Wav: return tr("WAV");
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case Song::Type_TrueAudio: return tr("TrueAudio");
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case Song::Type_Stream: return tr("Stream");
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case Song::Type_Unknown:
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default:
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return tr("Unknown");
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}
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}
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PlaylistView::PlaylistView(QWidget *parent)
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: QTreeView(parent),
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glow_enabled_(false),
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glow_timer_(new QTimer(this)),
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glow_intensity_step_(0),
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row_height_(-1),
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currenttrack_play_(":currenttrack_play.png"),
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currenttrack_pause_(":currenttrack_pause.png")
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{
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setItemDelegate(new PlaylistDelegateBase(this));
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setItemDelegateForColumn(Playlist::Column_Length, new LengthItemDelegate(this));
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setItemDelegateForColumn(Playlist::Column_Filesize, new SizeItemDelegate(this));
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setItemDelegateForColumn(Playlist::Column_Filetype, new FileTypeItemDelegate(this));
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setItemDelegateForColumn(Playlist::Column_DateCreated, new DateItemDelegate(this));
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setItemDelegateForColumn(Playlist::Column_DateModified, new DateItemDelegate(this));
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setHeader(new PlaylistHeader(Qt::Horizontal, this));
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header()->setMovable(true);
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connect(header(), SIGNAL(sectionResized(int,int,int)), SLOT(SaveGeometry()));
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connect(header(), SIGNAL(sectionMoved(int,int,int)), SLOT(SaveGeometry()));
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glow_timer_->setInterval(1500 / kGlowIntensitySteps);
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connect(glow_timer_, SIGNAL(timeout()), SLOT(GlowIntensityChanged()));
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}
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void PlaylistView::setModel(QAbstractItemModel *model) {
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QTreeView::setModel(model);
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LoadGeometry();
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}
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void PlaylistView::LoadGeometry() {
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QSettings settings;
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settings.beginGroup(kSettingsGroup);
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if (!header()->restoreState(settings.value("state").toByteArray())) {
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header()->hideSection(Playlist::Column_Disc);
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header()->hideSection(Playlist::Column_Year);
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header()->hideSection(Playlist::Column_Genre);
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header()->hideSection(Playlist::Column_BPM);
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header()->hideSection(Playlist::Column_Bitrate);
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header()->hideSection(Playlist::Column_Samplerate);
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header()->hideSection(Playlist::Column_Filename);
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header()->hideSection(Playlist::Column_BaseFilename);
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header()->hideSection(Playlist::Column_Filesize);
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header()->hideSection(Playlist::Column_Filetype);
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header()->hideSection(Playlist::Column_DateCreated);
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header()->hideSection(Playlist::Column_DateModified);
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}
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}
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void PlaylistView::SaveGeometry() {
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QSettings settings;
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settings.beginGroup(kSettingsGroup);
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settings.setValue("state", header()->saveState());
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}
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void PlaylistView::ReloadBarPixmaps() {
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currenttrack_bar_left_ = LoadBarPixmap(":currenttrack_bar_left.png");
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currenttrack_bar_mid_ = LoadBarPixmap(":currenttrack_bar_mid.png");
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currenttrack_bar_right_ = LoadBarPixmap(":currenttrack_bar_right.png");
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}
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QList<QPixmap> PlaylistView::LoadBarPixmap(const QString& filename) {
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QImage image(filename);
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image = image.scaledToHeight(row_height_, Qt::SmoothTransformation);
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// Colour the bar with the palette colour
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QPainter p(&image);
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p.setCompositionMode(QPainter::CompositionMode_SourceAtop);
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p.setOpacity(0.4);
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p.fillRect(image.rect(), palette().color(QPalette::Highlight).lighter(125));
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p.end();
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// Animation steps
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QList<QPixmap> ret;
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for(int i=0 ; i<kGlowIntensitySteps ; ++i) {
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QImage step(image.copy());
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p.begin(&step);
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p.setCompositionMode(QPainter::CompositionMode_SourceAtop);
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p.setOpacity(0.4 - 0.6 * sin(float(i)/kGlowIntensitySteps * (M_PI/2)));
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p.fillRect(step.rect(), Qt::white);
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p.end();
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ret << QPixmap::fromImage(step);
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}
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return ret;
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}
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void PlaylistView::drawRow(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
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QStyleOptionViewItemV4 opt(option);
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bool is_current = index.data(Playlist::Role_IsCurrent).toBool();
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bool is_paused = index.data(Playlist::Role_IsPaused).toBool();
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if (is_current) {
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const_cast<PlaylistView*>(this)->last_current_item_ = index;
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const_cast<PlaylistView*>(this)->last_glow_rect_ = opt.rect;
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int step = glow_intensity_step_;
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if (step >= kGlowIntensitySteps)
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step = 2*(kGlowIntensitySteps-1) - step + 1;
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int row_height = opt.rect.height();
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if (row_height != row_height_) {
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// Recreate the pixmaps if the height changed since last time
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const_cast<PlaylistView*>(this)->row_height_ = row_height;
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const_cast<PlaylistView*>(this)->ReloadBarPixmaps();
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}
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QRect middle(opt.rect);
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middle.setLeft(middle.left() + currenttrack_bar_left_[0].width());
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middle.setRight(middle.right() - currenttrack_bar_right_[0].width());
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// Selection
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if (selectionModel()->isSelected(index))
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painter->fillRect(opt.rect, opt.palette.color(QPalette::Highlight));
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// Draw the bar
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painter->drawPixmap(opt.rect.topLeft(), currenttrack_bar_left_[step]);
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painter->drawPixmap(opt.rect.topRight() - currenttrack_bar_right_[0].rect().topRight(), currenttrack_bar_right_[step]);
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painter->drawPixmap(middle, currenttrack_bar_mid_[step]);
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// Draw the play icon
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QPoint play_pos(currenttrack_bar_left_[0].width() / 3 * 2,
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(row_height - currenttrack_play_.height()) / 2);
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painter->drawPixmap(opt.rect.topLeft() + play_pos,
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is_paused ? currenttrack_pause_ : currenttrack_play_);
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// Set the font
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opt.palette.setColor(QPalette::Text, Qt::white);
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opt.palette.setColor(QPalette::HighlightedText, Qt::white);
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opt.palette.setColor(QPalette::Highlight, Qt::transparent);
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opt.font.setItalic(true);
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opt.decorationSize = QSize(20,20);
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}
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QTreeView::drawRow(painter, opt, index);
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}
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void PlaylistView::GlowIntensityChanged() {
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glow_intensity_step_ = (glow_intensity_step_ + 1) % (kGlowIntensitySteps * 2);
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viewport()->update(last_glow_rect_);
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}
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void PlaylistView::StopGlowing() {
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glow_enabled_ = false;
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glow_timer_->stop();
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glow_intensity_step_ = kGlowIntensitySteps;
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}
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void PlaylistView::StartGlowing() {
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glow_enabled_ = true;
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if (isVisible())
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glow_timer_->start();
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}
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void PlaylistView::hideEvent(QHideEvent*) {
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glow_timer_->stop();
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}
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void PlaylistView::showEvent(QShowEvent*) {
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if (glow_enabled_)
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glow_timer_->start();
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}
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bool CompareSelectionRanges(const QItemSelectionRange& a, const QItemSelectionRange& b) {
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return b.bottom() < a.bottom();
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}
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void PlaylistView::keyPressEvent(QKeyEvent* event) {
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if (!model()) {
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QTreeView::keyPressEvent(event);
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return;
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}
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if (event->matches(QKeySequence::Delete) ||
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event->key() == Qt::Key_Backspace) {
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QItemSelection selection(selectionModel()->selection());
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// Sort the selection so we remove the items at the *bottom* first, ensuring
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// we don't have to mess around with changing row numbers
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qSort(selection.begin(), selection.end(), CompareSelectionRanges);
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foreach (const QItemSelectionRange& range, selection) {
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model()->removeRows(range.top(), range.height(), range.parent());
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}
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// Select the new current item
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if (currentIndex().isValid())
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selectionModel()->select(
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QItemSelection(currentIndex().sibling(currentIndex().row(), 0),
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currentIndex().sibling(currentIndex().row(), model()->columnCount()-1)),
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QItemSelectionModel::Select);
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event->accept();
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} else if (event->key() == Qt::Key_Enter ||
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event->key() == Qt::Key_Return ||
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event->key() == Qt::Key_Space) {
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if (currentIndex().isValid())
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emit PlayPauseItem(currentIndex());
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event->accept();
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} else {
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QTreeView::keyPressEvent(event);
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}
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}
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void PlaylistView::contextMenuEvent(QContextMenuEvent* e) {
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emit RightClicked(e->globalPos(), indexAt(e->pos()));
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e->accept();
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}
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